CN206216254U - The short U bend pipes automatic moulding machine of thin-walled with weld-ring - Google Patents

Abstract

The utility model discloses a kind of short U bend pipes automatic moulding machine of thin-walled with weld-ring, it is related to technical field of automation equipment, the shaping and set weld-ring operation of the short U bend pipes of thin-walled can be continuously finished, it is to avoid fold occurs in tube wall.Including a feeding assembly, at least with clamping device and a drive mechanism, a drive mechanism drives clamping device feeding forward；All pipe assemblies, at least with cutter mechanism and No. two drive mechanisms, No. two drive mechanism band cutters are acted；One bend pipe assembly, at least with fixed part, semicircle mould, movable part and No. three drive mechanisms, fixed length tubing one end is clamped in fixed part, and activity coordinates in movable part after the other end crosses semicircle mould；One circumference indexing assembly, at least with rotating turret, clamp mechanism, No. four drive mechanisms and discharging cylinder；A set of weld-ring assembly, at least with a weld-ring feeding unit material, weld-ring pilot unit and a set of weld-ring unit, set weld-ring unit is shifted onto the straight length of the short U bend pipes of thin-walled by weld-ring.

Description

The short U bend pipes automatic moulding machine of thin-walled with weld-ring

Technical field

The utility model is related to technical field of automation equipment, more particularly to a kind of short U bend pipes of thin-walled with weld-ring are automatic Forming machine.

Background technology

Continuous progressive and industrial with science and technology develop rapidly, through bending machining tubing in the industry Demand gradually increases, the quality of bending quality, will directly influence reasonable structure, security and the reliability of these industry products Property.The short U bend pipes of thin-walled with weld-ring are the chief components of heat exchanger, are applied in the equipment such as heat exchanger, air-conditioning, refrigerator It is extremely wide.

The short U bend pipes of thin-walled of existing market upper band weld-ring, either bent pipe forming technology or set ring welding technology, adopt substantially By hand or semiautomatic working mode, there is labour intensity in actual production big, efficiency is low, the problems such as formed precision difference.

It is basic both at home and abroad at present that the short U of thin-walled is implemented using following scheme in order to solve the problems, such as bent pipe forming technology this aspect Bend pipe is processed：

1. using first bend pipe+rear Pipe Cutting：Tinuous production is formed by bending machine, pipe cutting machine and materials in the tube transmission line combination, Due to after bend pipe again during Pipe Cutting, it is necessary to carry out cutting saw to short U bend pipes, and materials in the tube easily produce substantial amounts of gold during cutting saw Category bits, therefore subsequent process also needs to increase cleaning and deletes and select operation, while materials in the tube need sawed-off bend pipe end pleat during cutting saw Wrinkle crushed element, the waste material of its cut-out accounts for 20% of raw material or so according to statistics, therefore the program can also cause materials in the tube largely On waste；

2. using first Pipe Cutting+back elbow：Industrial technology research institute of Zhangjiagang Jiangsu University of Science and Technology joins with Jiangsu University of Science and Technology Conjunction discloses a kind of brake forming production line (China Patent Publication No.：CN104826925A), its production line include unreeling structure, Feeding straightener, shut-off mechanism, brake forming equipment and feed mechanism, wherein brake forming equipment pass through center clamping device Clamp materials in the tube, the independent wrap direction of left and right double end, although bend molding apparatus side in left and right two is provided with clamping device, can be right Positioning action, but U forming elbows short for thin-walled are played during materials in the tube bend pipe, except both ends straight length pars intermedia side all Need to carry out flexural deformation, clamping position area is restricted during also implying that bend pipe, multipoint clamping is difficult, according to this Scheme carries out the short U bend pipes processing of thin-walled, and the U-shaped cambered surface of materials in the tube will occur the phenomenons such as fold, the diminution of materials in the tube bite internal diameter, influence pipe The phenomenons such as stream through-current capacity, service life.

In order to solve the problems, such as forming elbow rear enclosure ring welding technology this aspect, some producers use attached to integer feeding at present first Plus transmission+drawing-in device or industrial robot carry out integer feeding, although the program can solve the low problem of automaticity, But either traditional transmission+drawing-in device or new industry robot application, all bring equipment cost pressure high to user Power；For operations such as follow-up integer, set weld-rings, domestic Wuhu Mei Wei packages Co., Ltd discloses a kind of small bend pipe collar Machine (China Patent Publication No.：CN104759891A), including stationary fixture using upper die and lower die design, stationary fixture lower section set The jacking system of jack-up upper mould is equipped with, because the equipment stationary fixture feeding, discharge divides in mold process, upper mould is raised need to be reached The height of the external diameter of short U bend pipes, the spring of its upper and lower mould connection will fail as access times increase, while by In blanking process, due to lacking by inner and outer pusher, can only by rotation dish outside additional mechanism from outside to inside again The straight length that secondary applying pressure acts on short U bend pipes carries out blanking, but because existing heat transmission equipment spaces compact is more and more important, Most of equipment use the short U bend pipes socket weld-ring of thin-walled, and the short U bend pipes fatigue strength of thin-walled that frequent stress is acted on is also by under Drop.

Utility model content

The technical problems to be solved in the utility model is to overcome the shortcomings of above-mentioned background technology, there is provided a kind of with the thin of weld-ring The short U bent pipe forming devices of wall, can be continuously finished the shaping and set weld-ring operation of the short U bend pipes of thin-walled, and can effectively reduce Waste of material, it is to avoid fold occurs in tube wall, it is ensured that product quality and service life, should also have high working efficiency, automate journey The characteristics of spending high.

The technical solution adopted in the utility model is：A kind of short U bend pipes automatic moulding machine of the thin-walled with weld-ring, its feature exists In the automatic moulding machine includes following part：One feeding assembly, at least with a clamping device and a driving machine Structure, by gripper mechanism grips tubing, the feeding forward under a drive for drive mechanism；All pipe assemblies, at least with one Individual cutter mechanism and No. two drive mechanisms, are acted by No. two drive mechanism band cutters, and tubing is cut into fixed length pipe Material；One bend pipe assembly, at least with a fixed part, semicircle mould, a movable part and No. three drive mechanisms, fixed length pipe Material one end is clamped in fixed part, and activity coordinates in movable part after the other end crosses semicircle mould, is driven by No. three drive mechanisms and lived Dynamic portion swings, and the stage casing of fixed length tubing is bent into arc section around semicircle mould, forms the short U bend pipes of thin-walled；One circumference indexing assembly, At least there is a rotating turret, a clamp mechanism, No. four drive mechanisms and discharging cylinder；Clamp mechanism is arranged on rotating turret On, No. four drive mechanisms drive rotating turrets rotation so that clamp mechanism by bend pipe assembly, by the arc section of the short U bend pipes of thin-walled After clamping and it is driven to rotate；A set of weld-ring assembly, at least with a weld-ring feeding unit material, weld-ring pilot unit and a set of Weld-ring unit, weld-ring pilot unit welding neck collar is oriented to and makes weld-ring ordered arrangement, and set weld-ring unit pushes away the weld-ring of ordered arrangement To the straight length of the short U bend pipes of thin-walled.

Preferably, the feeding assembly also includes a tube straightener for pipe, the front end of feeding assembly, tube straightening are arranged on Machine includes rack-mounted at least one set of aligns wheel, is the passage of tubing between every group of two row's aligns wheels of aligns wheel.

Preferably, the clamping device includes sliding clamping device and fixing and holding mechanism；Slide clamping device bag Include be fixed in frame guide rail, the travelling carriage on guide rail, drive the clamping motor that is slid along guide rail of travelling carriage and Screw mandrel, at least one fixed clamp block on travelling carriage and at least one slide grip block and drive and slide grip block Gripper cylinder；The fixed clamp block be fixed on slip grip block lower section, gripper cylinder arrange vertically and with slide grip block Connection；Fixing and holding mechanism includes a fixed mount for vertical, the fixed block being fixed on fixed mount, is hinged on fixed block The oscillating cylinder that the swinging block and driving swinging block of upside swing；Swinging block is formed with arc port with the bottom of fixed block, closes The clamp port of tubing is formed after holding together.

Preferably, in the Pipe Cutting assembly, cutter mechanism includes by the rack-mounted cutterhead of bearing, drives knife Cutter motor that disk is rotated, three claws for being movably arranged on cutterhead end, the slip cap that is set on cutterhead outer circumference surface with And drive the push rod of slip cap sliding；Three claws are evenly arranged around the axis of cutterhead, and the axial location of cutterhead is offered Tubing passage, the afterbody of three claws is hinged in cutterhead, and middle part is provided with spring, and head stretches out the end face of cutterhead, and wherein two The head of individual claw is provided with roller, and the head of another claw is provided with cutting blade；The push rod by Pipe Cutting motor pushing, The bottom of push rod is provided with roller, and roller is resisted against the rear end of slip cap, push rod towards cutterhead end move when, slip cap extruding institute Stating three claws draws it in.

Preferably, the Pipe Cutting assembly also includes at least one whole mouthful of core bar, the whole mouth core bar and cutter axis position Tubing passage it is coaxially arranged, whole mouth core bar include it is integrally formed for tubing be oriented to guide section, whole mouth section, keep away knife section, Interlude and drive connection section, whole mouth section are identical with interlude diameter, so as to ensure that the materials in the tube internal diameter after cutting is indeformable, keep away knife Duan Youyi circle grooves are formed, and blade is avoided during for Pipe Cutting；The Pipe Cutting assembly is additionally provided with a core bar drive mechanism, including solid It is scheduled on the positioning seat in frame, the guide rod on positioning seat and sliding block, a drive cylinder, the drive connection of whole mouth core bar Section is connected with sliding block, and sliding block is arranged on the guide rod being arranged in parallel with whole mouth core bar and is connected with drive cylinder.

Preferably, being provided with a material transfer assembly between the Pipe Cutting assembly and bend pipe assembly, the material transfer assembly includes one Individual linear vibration feeder and an interval feed appliance, linear vibration feeder at least one have guiding tubing elongated slot and One vibrator, linear vibration feeder one end is arranged on the lower section of the cutter mechanism so as to accept the tubing of fixed length cutting, The other end is docked with the interval feed appliance；Interval feed appliance has at least one locating slot, and the bottom land of locating slot is provided with two The positioning cylinder of individual alternation, the push rod of cylinder is stretched into groove from the bottom land of locating slot, between two push rods of cylinder away from It is adapted from a fixed length tubing.

Preferably, the fixed part is used to install semicircle including a bend pipe fixed seat being fixed in frame, one The bend pipe template of mould, promote the flexible thimble cylinder of semicircle mould, one driven by fixed bending tube motor and feed screw nut pair Send tube core bar, the spring clip of clamping fixed-length tubing, the shift fork and shift fork cylinder of driving spring folder；The bend pipe fixed seat with And bend pipe template is adjacent to arrangement, bend pipe template offers relative deep-slotted chip breaker with bend pipe fixed seat, and determining for tubulose is formed after being adjacent to The passage of tubing long；The sliding block of the feed screw nut pair is connected to send tube core bar, and this send the head of tube core bar to be formed with and fixed length pipe The adaptable plug of material endoporus, the diameter of plug is less than the diameter for sending tube core bar, so as in plug and the transition position for sending tube core bar Form the shaft shoulder being used for against fixed length tube end face；Send tube core bar that the passage of fixed length tubing, fixed length tubing are inserted from rear side Passage on front side of be formed with inner conical surface, spring clip is provided with inner conical surface, the side of the bend pipe fixed seat offers groove, shift fork It is hinged in groove, the head of shift fork coordinates with the spring clip, afterbody is connected with the push rod of the shift fork cylinder；The bend pipe The front end of template is in semi-cylindrical and is installed with the semicircle mould, and semicircle mould offers what is docked with the passage of the fixed length tubing Half slot, the rear end of semicircle mould is integrally formed with a thimble for extending back；Through hole is offered in bend pipe template, thimble passes through logical Thimble cylinder connection described in Kong Houyu is simultaneously driven.

Preferably, the movable part includes a swing span, at least a bulb core bar, a bulb core bar cylinder；The pendulum Moving frame is hinged on the semi-cylindrical position of the bending die front edge of board, vertical pendulum moving axis and described No. three drives by vertical pendulum moving axis Motivation structure is connected, and bulb core bar cylinder and guide rail are fixed with swing span, and bulb core bar is secondary slideably by guide rail slide block On swing span, and the head of bulb core bar is arranged towards the passage of the fixed length tubing, the push rod of bulb core bar cylinder Bulb core bar is driven to be moved back and forth along guide rail；The movable part also includes that a bend pipe aids in mould, bend pipe auxiliary mould to be fixed on pendulum In moving frame, positioned at the head side of bulb core bar, at least one arc being adapted with bulb core bar is offered on bend pipe auxiliary mould Shape groove.

Preferably, the bulb core bar includes bulb, bearing pin, push rod and core bar, the left end of the core bar is formed with endoporus, Spring and push rod are provided with endoporus, the left end of bulb is hemisphere, and right-hand member is cylinder, and cylinder inserts the endoporus of core bar And the push rod is set by hinge in endoporus, between cylinder and spring；The end for sending tube core bar is formed with The spherical concave surface adaptable with the hemisphere of bulb.

Preferably, the cylinder upper right corner of the bulb is formed with arc tangent plane, cylinder middle part is provided with for being hinged Looping pit.

Preferably, the hole wall of the looping pit by an arc section of 1/2nd circles, straightway, four/ No. two arc sections of one circle, No. two straightways, No. three arc sections of a quarter circle and No. three straightways are sequentially connected Loop constitute, an arc section, No. two arc sections and No. three arc section radiuses are equal.

Preferably, the left end of the core bar offers the pin-and-hole for being hinged, core bar is formed with right angle on the downside of left side Otch, be arranged with the middle part of core bar one for against and buffer the elastic tape of fixed length tubing.

Preferably, the clamp mechanism include a clamp bearing, at least one discharging push pedal, an at least U bent clamps and One lifting frame；It is fixed on rotating turret at the top of clamp bearing, it is curved that the front of clamp bearing offers at least one U short with thin-walled The adaptable arc groove of the arc section of pipe, the bottom land of arc groove offers the groove for extending to the clamp bearing back side, The front end of the discharging push pedal is formed with the arc port being adapted with arc groove, and is inserted into arc groove always from groove；Folder The back side of pipe support is provided with elastic pusher, and the tail end of the push pedal that discharges is connected on elastic pusher, and the two ends of the elastic pusher pass through Removable pin is positioned at the back side of clamp bearing, and spring is provided between the middle part of elastic pusher and clamp bearing；The arc groove Upside offer installing port, U bent clamps moving up and down are installed in installing port, the lower surface of the U bent clamps has one Individual projection, projection is extend into the arc groove；The two ends of U bent clamps are connected with lifting frame, and T-shaped is formed with the top of lifting frame Block.

Preferably, the clamp mechanism also include a shift mechanism, the shift mechanism include one lifting pedestal, two Lifting arm and at least one lifting cylinder, lifting pedestal are fixed in frame, and the stage casing of two lifting arms is hinged on lifting base On frame, two lifting arms tail ends with lifting cylinder push rod be connected, two lift arms head end be hung to bend pipe assembly and Set weld-ring assembly, and the bottom surface of two head ends of lifting arm is connected with a liftable lifting block, the bottom system of the lifting block There is the lifting groove being adapted with T-shaped block.

Preferably, the discharging cylinder is positioned opposite with set weld-ring assembly, the push rod of discharging cylinder is towards clamp mechanism Elastic pusher the back side arrangement.

Preferably, being additionally provided with a shaping assembly between the bend pipe assembly and set weld-ring assembly；The shaping assembly bag Include shaping pedestal, shaping sliding seat, shaping fixed seat, the two shaping sliding shoes and first, second, being fixed in frame Three drive mechanisms；Shaping sliding seat is arranged on shaping pedestal by a guideway, and is connected with the first drive mechanism；Shaping Fixed seat is fixed on the top of shaping sliding seat, and two shaping sliding shoes are slippingly arranged in shaping fixed seat, and each is whole The front end of shape sliding shoe is provided with the shaping component of the straight length shaping for short U bend pipes, wherein the first shaping sliding shoe and Two drive mechanisms are connected, and the second shaping sliding shoe is connected with the 3rd drive mechanism.

Preferably, the weld-ring feeding unit material has at least one vibrating disk, the discharging opening of vibrating disk is horizontally disposed, weldering Sent out from discharging opening level after ring A4 ordered arrangements.

Preferably, the weld-ring pilot unit has a guider, the front of guider is formed with least two Gathering sill, the top of each gathering sill is connected by translot with the discharging opening, and padding ring mechanism is provided with translot, by weld-ring from Translot pushes gathering sill, and each gathering sill bottom is formed with the outlet of the weld-ring exit and offers insertion leading to the guider back side Hole, the front of guider is provided with the baffle mechanism for preventing the weld-ring in outlet from dropping.

Preferably, the guider includes fixed mount, guide plate and cover plate；Guide plate is solid vertically by fixed mount It is scheduled in frame, the translot is offered at the top of guide plate, the positive cell wall of translot offers at least two pusher grooves, pusher Groove extends to the front of guide plate；The front of guide plate offers at least two gathering sills, and the cover plate is fixed on guiding The front of plate simultaneously offers observation adjustment tank corresponding with gathering sill.

Preferably, the padding ring mechanism includes being pawled positioned at two of translot front and back respectively, each is pawled Respectively there is at least two fingers and finger to be corresponded with the pusher groove, two fingers pawled it is positioned opposite and between away from It is adapted from the diameter with weld-ring；Two pawl between be fixedly connected so as to be synchronized with the movement by contiguous block, on fixed mount install Pawl cylinder, the push rod of cylinder of pawling is pawled with one of them and is connected, slided along pusher groove anterior-posterior horizontal so as to drive and pawl Move, glide direction is vertical with translot.

Preferably, the baffle mechanism includes baffle plate cylinder, fixed frid and baffle plate；Baffle plate cylinder is fixed on vertically In frame；Fixed frid is fixed on the front of guider, and the outlet with weld-ring is offered on guide plate and fixed frid Corresponding through hole, the back side of fixed frid offers limit guide groove vertically, baffle plate by limit guide groove be inserted into fixed frid with Between guide plate, the bottom of baffle plate is connected by connecting rod with the push rod of baffle plate cylinder；Offered on the baffle plate and weld-ring diameter Adaptable large through-hole and with the small through hole at the top of large through-hole, be further opened with observation adjustment tank corresponding with gathering sill, Large through-hole is less than weld-ring external diameter with diameter greater than weld-ring external diameter, small through hole diameter.

Preferably, the set weld-ring unit is arranged on the back side of guider, with least two push rods, driving push rod Push rod cylinder assembly and drive push rod, the overall drive mechanism of push rod cylinder, two push rods of push-rod assembly are along described Through hole is inserted into the outlet of weld-ring from the back side of guider, and the weld-ring set of outlet is set to the straight length at short U bend pipes two ends.

Preferably, the overall drive mechanism includes motor, feed screw nut pair, guide rail slide block pair and sliding seat；It is sliding Dynamic seat is arranged in frame by the way that guide rail slide block is secondary, motor by feed screw nut pair driving sliding seat slip, glide direction with lead Through hole to device is parallel.

Preferably, the push rod includes outer tube, throw-out collar core bar and spring；The rear end of outer tube is fixed on the cunning On dynamic seat, the front end level of outer tube overhangs and is inserted in its through hole from the back side of guider；Throw-out collar core bar is slideably inserted Enter in outer tube, the endoporus of throw-out collar core bar leading portion and outer tube and weld-ring is adapted, throw-out collar core bar is formed with one foremost Individual columned plug, the endoporus of plug and short U bend pipes is adapted, and plug external diameter of the external diameter less than throw-out collar core bar leading portion； The external diameter of throw-out collar core bar back segment is less than leading portion, and the spring is set in throw-out collar core bar back segment, and one end of spring is resisted against throw-out collar core The rear end face of bar leading portion, the other end is resisted against the rear end of outer tube.

Preferably, the push rod cylinder assembly includes push rod cylinder and slides locating piece, the slip locating piece leads to The back side that at least two slide bars are slidably located in sliding seat is crossed, slide bar is arranged in parallel with push rod, and push rod cylinder is fixed on cunning The back side of dynamic locating piece, to slide and offer opening corresponding with the push rod of push rod cylinder on locating piece, and the push rod of push rod cylinder can From in opening through and top pressure to the back side of sliding seat；The rear end of throw-out collar core bar is connected after passing through sliding seat with slip locating piece.

The beneficial effects of the utility model are：

1. the utility model forming elbow is based partially on first Pipe Cutting, the design of back elbow process innovation, by feeding assembly, cuts Pipe assembly, bend pipe feeding assembly and bend pipe assembly module structure design, realize the short U forming elbows of chipless Pipe Cutting, without Additional cleaning (deleting choosing) device, eliminates first bend pipe, the materials in the tube wasting phenomenon that rear Pipe Cutting technology pattern is caused；

2. the utility model Pipe Cutting operation is stretched into materials in the tube hole to be cut using whole mouth core bar and positioned, and whole mouth core bar is using segmentation Design, is provided with guide section (conical surface), whole mouth section, keeps away knife section, and guide section is used for whole mouth core bar and stretches into materials in the tube positioning to be cut, whole Mouth section is identical with the interlude diameter of axle, indeformable for ensureing the materials in the tube internal diameter after cutting, keeps away knife section for the cutter of Pipe Cutting assembly Blade is avoided during mechanism's cutting materials in the tube, finally realizes realizing that chipless cuts under the premise of materials in the tube internal diameter is indeclinable；

3. the utility model bend pipe operation is lived by sending the positioning clamping of tube core boom end to be positioned with materials in the tube by spring clip It is dynamic to form internal and external circumference direction positioning clamping, it is ensured that materials in the tube step up uniform force, it is to avoid radially deform；Put by swing span It is dynamic to drive bulb core bar to realize materials in the tube bend pipe, bulb core bar include one end be hemispherical, one end for be provided with annular groove cylinder and The built-in core bar for being provided with spring, wherein realize that short U bend pipes inner arc is molded by core bar, by bulb realize short U bend pipes outer arc into Type, it is ensured that short U bend pipes cambered surface corrugationless, materials in the tube circulation flow is big, long service life；

4. the upper material process of the utility model indexing is designed by thimble cylinder with semicircle die combination, realizes the thin-walled after bend pipe Short U bend pipes directly eject bend pipe assembly and are advanced in clamp mechanism, without using additional transmission+drawing-in device or industrial machine The interface components such as people, simplify production equipment structure, reduce user equipment cost；

5. the utility model clamp mechanism devises the clamp mechanism of short U bend pipes, and its arc groove is provided with a circle and thin-walled The groove that short U bend pipes circular arc pipeline section is engaged, for fixing short U bend pipes, U bent clamps are provided with spring, and discharging push pedal is pushed away with elasticity Plate is connected, and upper and lower mould structure is replaced by the structure design, the reliability of clamp mechanism is improve, while being pushed away by elasticity Plate and discharging push pedal promotion blanking from inside to outside, it is to avoid thin-walled short U bend pipes set risk of distortion, it is ensured that bending quality and make Use the life-span.

Brief description of the drawings

Fig. 1 is main structure diagram of the present utility model.

Fig. 2 is overlooking the structure diagram of the present utility model.

Fig. 3 is dimensional structure diagram of the present utility model.

Fig. 3-1 is the dimensional structure diagram of Pipe Cutting assembly.

Fig. 4 is the overlooking the structure diagram of feeding assembly.

Fig. 5 is the cross section structure diagram of feeding assembly.

Fig. 6 is the dimensional structure diagram of fixing and holding mechanism and Pipe Cutting assembly.

Fig. 7 is the dimensional structure diagram of whole mouth core bar.

Fig. 8 is one of dimensional structure diagram of bend pipe assembly.

Fig. 9 is the two of the dimensional structure diagram of bend pipe assembly.

Figure 10 is the main structure diagram of bend pipe assembly.

Figure 11 is the dimensional structure diagram of movable part.

Figure 12 is one of bend pipe schematic diagram of fixed part and movable part.

Figure 13 is the two of fixed part and the bend pipe schematic diagram of movable part.

Figure 14 .1 are one of the cross section structure diagram of bulb core bar (bulb stretches out).

Figure 14 .2 are two (bulb indentations) of the cross section structure diagram of bulb core bar.

Figure 15 is the mplifying structure schematic diagram of bulb.

Figure 16 .1 are the cross section structure diagram of core bar.

Figure 16 .2 are the close-up schematic view of Figure 16 .1.

Figure 17 is the structural representation of the working condition one of bulb core bar.

Figure 18 is the structural representation of the working condition two of bulb core bar.

Figure 19 is the structural representation of the working condition three of bulb core bar.

Figure 20 is the structural representation of looping pit.

Figure 21 is one of dimensional structure diagram of shaping assembly.

Figure 22 is the two of the dimensional structure diagram of shaping assembly.

Figure 23 is the operation principle schematic diagram of shaping component.

Figure 24 is the structural representation of the short U bend pipes of thin-walled.

Figure 25 is the structural representation for covering the short U bend pipes of thin-walled after weld-ring.

Figure 26 is the dimensional structure diagram of circumference indexing assembly.

Figure 27 is one of dimensional structure diagram of shift mechanism.

Figure 28 is the two of the dimensional structure diagram of shift mechanism.

Figure 29 is the main structure diagram of clamp mechanism.

Figure 30 is the cross section structure diagram of clamp mechanism.

Figure 31 is the configuration schematic diagram of clamp mechanism.

Figure 32 is the dimensional structure diagram for covering weld-ring assembly.

Figure 33 is the dimensional structure diagram of weld-ring pilot unit.

Figure 34 is the dimensional structure diagram of guide plate.

Figure 35 is the structural representation of baffle plate.

Figure 36 is the dimensional structure diagram for covering weld-ring unit.

Figure 37 is the dimensional structure diagram of push rod and push rod cylinder assembly.

Figure 38 is the dimensional structure diagram of top board.

Figure 39 is the dimensional structure diagram pawled.

Figure 40 is the dimensional structure diagram for omitting weld-ring feeding unit material rear enclosure weld-ring assembly.

Figure 41 is the cross section structure diagram of push rod.

Figure 42 .1 to Figure 42 .6 are the operation principle schematic diagrams for covering weld-ring assembly.

Specific embodiment

The utility model is described in further detail below, but the utility model is not limited to following examples.

As shown in Fig. 1 to Fig. 3, a kind of short U bend pipes automatic moulding machine of the thin-walled with weld-ring, including following part：One feeding Assembly A1, at least with a clamping device A2 and a drive mechanism (motor and feed screw nut pair), by clamping device Clamping tubing A14, the feeding forward under a drive for drive mechanism；All pipe assemblies A4, at least with a cutter mechanism And No. two drive mechanisms (motor), acted by No. two drive mechanism band cutters, tubing is cut into fixed length tubing A14.1；One bend pipe assembly A9, at least with a fixed part, semicircle mould, a movable part and No. three drive mechanisms A9.7 (motor), fixed length tubing one end is clamped in fixed part, and activity coordinates in movable part after the other end crosses semicircle mould, by three Number drive mechanism drives movable part to swing, and the stage casing of fixed length tubing is bent into arc section around semicircle mould, forms the short U of thin-walled curved Pipe；One circumference indexing assembly A12 is at least (general with a round platform, rotating turret A12.3, a clamp mechanism A12.2 Have 2 clamp mechanisms), No. four drive mechanism A12.1 (motor) and discharging cylinder A17；Clamp mechanism is arranged on rotating turret, No. four drive mechanisms drive rotating turret rotation so that clamp mechanism clamps the arc section of the short U bend pipes of thin-walled by bend pipe assembly Afterwards and it is driven to rotate；A set of weld-ring assembly A13, at least with weld-ring feeding unit material 1A, a weld-ring pilot unit 2A and A set of weld-ring unit 3A, weld-ring pilot unit welding neck collar is oriented to and makes weld-ring ordered arrangement, covers weld-ring unit by ordered arrangement Weld-ring shifts the straight length of the short U bend pipes of thin-walled onto.

As shown in Figure 4, Figure 5, the feeding assembly also includes a tube straightener for pipe A1.1, before being arranged on feeding assembly End, tube straightener for pipe includes rack-mounted at least one set of aligns wheel, is pipe between every group of two row's aligns wheels of aligns wheel The passage of material.When tubing passes through from passage, the certain extruding force of aligns wheel can be arrived and acted on so as to be straightened.

As shown in Figure 5, Figure 6, the clamping device includes sliding clamping device and fixing and holding mechanism A3；Slide clamping Mechanism includes the guide rail A10 being fixed in frame, the travelling carriage A2.5 on guide rail, drives what travelling carriage slid along guide rail Clamping motor A2.1 and screw mandrel, at least one fixed clamp block A2.4 on travelling carriage and at least one slide clamping The gripper cylinder A2.2 of grip block is slided in block A2.3 and driving；The fixed clamp block is fixed on slip grip block lower section, folder Hold cylinder and arrange and be connected with grip block is slided that fixed clamp block is respectively and fixedly provided with rubber blanket so as to be beneficial to grip block is slided vertically Clamp the tubing.Fixing and holding mechanism includes fixed mount A3.4, the fixed block being fixed on fixed mount of vertical The oscillating cylinder A3.1 that A3.3, the swinging block A3.2 being hinged on the upside of fixed block and driving swinging block swing.Swinging block with it is solid The bottom for determining block is formed with arc port, and the clamp port of tubing is formed after closing up.

As shown in figure 3-1, in the Pipe Cutting assembly, cutter mechanism includes passing through the rack-mounted cutterhead of bearing A4.5, drive cutterhead rotate cutter motor, be movably arranged on three claws of cutterhead end, be set on cutterhead outer circumference surface Slip cap A4.1 and drive slip cap sliding push rod A4.2.Three claws are evenly arranged around the axis of cutterhead, knife The axial location of disk offers tubing passage, and the afterbody of three claws is hinged in cutterhead, and middle part is provided with spring, and head stretches out knife The end face of disk, and the head of two of which claw is provided with roller A4.3, the head of another claw is provided with cutting blade A4.4.By Pipe Cutting motor by screw mandrel slipper push, the bottom of push rod is provided with roller to the push rod, and roller is resisted against slip cap Rear end, push rod towards cutterhead end move when, slip cap extrudes three claws draws it in, and pipe clamping is lived.

The Pipe Cutting assembly also includes the tubing of at least one whole mouthful of core bar A5, the whole mouth core bar A5 and cutter axis position Passage is coaxially arranged.As shown in fig. 7, whole mouth core bar A5 does linear telescopic motion, whole mouth under the drive mechanism effect of feeding core bar Core bar A5 includes guide section A5.1, whole mouth section A5.2, keeps away knife section A5.3, interlude A5.4 and drive connection section A5.5, guide section A5.1 is used for whole mouth core bar A5 and stretches into materials in the tube positioning to be cut, and whole mouth section A5.2 is identical with interlude A5.4 diameters, for protecting Materials in the tube internal diameter after card cutting is indeformable, keeps away knife section A5.3 and is formed by a circle groove, and the cutter mechanism for Pipe Cutting assembly A4 is cut Blade A4.4 is avoided during pipe cutting material.The core bar drive mechanism includes being fixed on positioning seat A5-3 in frame, installed in positioning Guide rod and sliding block A5-2, a drive cylinder A5-1 on seat, the drive connection section A5.5 of whole mouth core bar are connected with sliding block, sliding block It is connected on the guide rod being arranged in parallel with whole mouth core bar and with drive cylinder.

As shown in figure 3, being provided with a material transfer assembly between the Pipe Cutting assembly and bend pipe assembly, the material transfer assembly includes one Individual linear vibration feeder and an interval feed appliance, linear vibration feeder at least one have guiding tubing elongated slot A6 with And a vibrator, linear vibration feeder one end is arranged on the lower section of the cutter mechanism so as to accept the pipe of fixed length cutting Material, the other end is docked with the interval feed appliance.The bottom land that interval feed appliance has at least one locating slot A8, locating slot is installed There are two positioning cylinder A7 of alternation, the push rod A7-1 of cylinder to be stretched into groove from the bottom land of locating slot, two tops of cylinder The distance between bar is adapted with a fixed length tubing.Push rod near the positioning cylinder A7 of bend pipe assembly stretches out, near Pipe Cutting The push rod of the positioning cylinder A7 of assembly is shunk, and now fixed length tubing can be entered between two push rods of positioning cylinder A7, it The push rod near the positioning cylinder A7 of Pipe Cutting assembly stretches out afterwards, and the push rod near the positioning cylinder A7 of bend pipe assembly shrinks, fixed length Tubing is to be cleared.

As shown in Fig. 8-Figure 10 and Figure 12, Figure 13, the fixed part of the bend pipe assembly is fixed in frame including one Bend pipe fixed seat A9.17, one be used to that the bend pipe template A9.12 of semicircle mould A9.6 to be installed, promote the flexible thimble of semicircle mould Cylinder A9.18, one send tube core bar A9.19, a clamping fixed-length pipe by send pipe motor A9.8 and feed screw nut pair to drive The spring clip A9.16 of material, the shift fork A9.15 and shift fork cylinder A9.2 of driving spring folder.The thimble cylinder A9.18 is arranged on solid Determine on riser A9.26, fixed board A9.26 is fixed on frame A9.23, fairlead A9.20 is further fixed on fixed board, push up The push rod of pin cylinder is connected with sliding bar A9.21, the front end of sliding bar A9.21 through fairlead and fixed board A9.26 it It is connected with contiguous block A9.1 afterwards.The feed screw nut pair includes what rack-mounted screw mandrel A9.9 and screw mandrel A9.9 coordinated Nut and sliding block A9.22, the guide rail A9.25 of guide shoe, the sliding block and the tail end for sending tube core bar A9.19 of nut connection Connection.

The bend pipe fixed seat A9.17 and bend pipe template A9.12 are adjacent to arrangement, and bend pipe fixed seat is distinguished with bend pipe template It is formed with deep-slotted chip breaker and (is formed with opening at the top of the passage to be sent with interval so as to form the passage A9.14 of fixed length tubing A14.1 after being adjacent to The bottom docking of glassware).The sliding block A9.22 of the feed screw nut pair is connected to send tube core bar A9.19, as shown in Figure 12 and Figure 13, This send the head of tube core bar A9.19 to be formed with the plug A9.19.1 being adapted with fixed length inner hole of pipe, and the diameter of plug is less than and send pipe The diameter of core bar with the transition position formation one of tube core bar A9.19 is sent in plug A9.19.1 so as to be used for against fixed length tubing The shaft shoulder of A14.1 end faces.Send tube core bar that the passage A9.14 of fixed length tubing is inserted from rear side.Fixed length tubing A14.1 drops to passage After A9.14, send tube core bar A9.19 to be pushed away forward under the drive of feed screw nut pair, plug is inserted into fixed length tubing, promote pipe Material travels forward and enters spring clip A9.16, when the afterbody and plug of fixed length tubing reach the retaining part of spring clip front end When stop.

Inner conical surface A9.24 is formed with front side of the passage of fixed length tubing, spring clip A9.16, the bend pipe are provided with inner conical surface The side of fixed seat offers groove, and shift fork A9.15 is hinged in groove, and the head of shift fork coordinates with the spring clip, afterbody Push rod with the shift fork cylinder A9.2 is connected.Shift fork A9.15 stirs spring clip and travels forward when shift fork cylinder A9.2 is acted, by In the effect of inner conical surface, spring clip can be tightened, so as to fixed length tubing is clamped on the plug for sending tube core bar front end.

The front end of the bend pipe template A9.12 is in semi-cylindrical and is installed with the semicircle mould A9.6, and semicircle mould A9.6 is opened The half slot docked with the passage A9.14 of the fixed length tubing A14.1 is provided with, the half slot is opened from the side of semicircle mould A9.6 Begin, by behind the front side of semicircle mould A9.6, extending to the opposite side of semicircle mould A9.6, the rear end one of semicircle mould A9.6 into Type has a thimble A9.10 for extending back.Offer through hole in bend pipe template A9.12, thimble A9.10 through after through hole with it is described Contiguous block A9.1 is connected, so as to be driven by thimble cylinder A9.18 together with contiguous block A9.1.

As shown in Fig. 8 to Figure 11, the movable part of the bend pipe assembly includes a swing span A9.3, at least a bulb core bar A9.4, a bulb core bar cylinder A9.13.The swing span A9.3 is hinged on the bend pipe template by vertical pendulum moving axis A9.7 The semi-cylindrical position (usually in the axial location at semi-cylindrical position) of A9.12 front ends, vertical pendulum moving axis A9.7 with it is described No. three drive mechanism A9.11 connections.Bulb core bar cylinder A9.13 and guide rail A9.29, bulb core are fixed with swing span A9.3 Bar A9.4 is arranged on that guide rail A9.29 is upper and head leading to towards the fixed length tubing of bulb core bar A9.4 by sliding block A9.30 Road A9.14 arranges that the push rod of bulb core bar cylinder A9.13 is connected by link A9.28 with sliding block A9.30, so as to drive ball Head core bar A9.4 is moved back and forth along guide rail A9.29.

The movable part of the bend pipe assembly also includes that a bend pipe aids in mould A9.27, bend pipe auxiliary mould A9.27 to be fixed on pendulum On moving frame A9.3, positioned at the head side of bulb core bar A9.4, at least one is offered with bulb core on bend pipe auxiliary mould A9.27 Bar A9.4 adaptable deep-slotted chip breaker A9.27.1.During bend pipe, bulb core bar is inserted into fixed length tubing, positions fixed length tubing Inwall, the deep-slotted chip breaker A9.27.1 on bend pipe auxiliary mould A9.27 positions the outer wall of fixed length tubing, and auxiliary bulb core bar completes curved Pipe.

As shown in Figure 14 .1, Figure 14 .2, the bulb core bar includes bulb 1, bearing pin 2 and core bar 3, the left end of the core bar Endoporus 35 is formed with, spring 31 is provided with endoporus.As shown in figure 15, the left end of bulb is hemisphere 11, and right-hand member is cylinder 12, The endoporus of the insertion core bar of cylinder 12 is simultaneously hinged in endoporus by bearing pin 2.The end for sending tube core bar A9.19 is formed with and ball The adaptable spherical concave surface of first 1 hemisphere 11.

Further, in order to avoid there is cylinder when cylinder 12 is hooked by spring left end and avoids bulb 1 from rotating Influenceed by spring, the utility model is also provided with a columned push rod 34 between the cylinder 12 and spring 31.Should Push rod is slidably insert into endoporus 35, and the external diameter with diameter greater than spring of push rod, the right-hand member of push rod is resisted against spring left end, The left end of push rod is resisted against the right side of cylinder so that, when rotating, cylinder is with rod diameter for face contacts for bulb, it is ensured that The stability of motion.

As shown in Figure 16 .1 and Figure 16 .2, the cylinder upper right corner of the bulb is formed with arc tangent plane 14, in cylinder Portion is provided with the looping pit 13 for being hinged.As shown in figure 20, the hole wall of the looping pit 13 by 1/2nd circles a circle Segmental arc C1, straightway L1, an a quarter circular No. two arc section C2, No. two straightway L2, the three of a quarter circle The loop that number arc section C3 and No. three straightway L3 are sequentially connected is constituted, arc section C1, a No. two arc section C2 and three Number arc section C3 radiuses are equal.

The left end of the core bar 3 offers the pin-and-hole 32 for being hinged, and right angle incision 33 is formed with the downside of core bar left side. The outer tangent plane 33.1 of right angle incision switches to core bar bottom from the axis of core bar left side always, and the interior tangent plane 33.2 of core bar is from interior The inwall of hole left end is cut out, and is crossed to form right angle with outer tangent plane 33.1, and the middle part of core bar 3 is arranged with one to be used for against and buffer The elastic tape A9.4.1 of fixed length tubing A14.1.After sending tube core bar to shift fixed length tubing onto spring clip position, bulb core bar first puts in Fixed length tubing, elastic tape can compress copper pipe during this, it is ensured that fixed length tubing is contacted with the shaft shoulder for sending tube core bar and (send the pipe process to have Inertia, when sending tube core bar to be sent to, fixed length tubing is not necessarily contacted with the shaft shoulder, or fixed length tubing is slightly different in size, rubber Circle is adapted to), shift fork stirs spring clip and locks fixed length tubing again, then bend pipe again.

As shown in Figure 14 .1 and Figure 19, when bulb 1 axial direction and it is lateral do not stress effect when, the centre of sphere of bulb 1 and core The left end end surface of bar 3 is provided with distance of stretch out and draw back L (about 1.1~1.5mm), now the circular circular arc in bearing pin 2 and annular groove 14 C2 coordinates；

As shown in Figure 14 .2 and Figure 17, when core bar insertion copper pipe 4 starts to carry out bend pipe along mould 5, the only axis of bulb 1 When direction stress is acted on, spring 31 is compressed axially, and bulb 1 occurs sliding compression distance of stretch out and draw back L with core bar 3, until bearing pin 2 and ring Circular circular arc C 1 in shape groove 14 coordinates；

As shown in figure 18, when the only lateral forces of bulb 1 are acted on, the radial direction of spring 31 suffers restraints generation amount of deflection, the profit of bulb 1 There is beat with core bar 3 with arc tangent plane and right angle incision, now bearing pin 2 is matched somebody with somebody with the circular circular arc C 3 in annular groove 14 Close.

The operation principle of above-mentioned bend pipe assembly is：

1) after fixed length tubing A14.1 is cleared, from pipe bending mechanism is entered, pipe motor A9.8 and feed screw nut pair is sent to drive Send the front end of tube core bar A9.19 to be inserted into the mouth of pipe of fixed length tubing A14.1 rear ends, and promote fixed length tubing to enter spring forward Folder A9.16, the front end of fixed length tubing protrudes horizontally up spring clip；

2) bulb core bar cylinder A9.13 promotes bulb core bar A9.4 to stretch out and be inserted into the mouth of pipe of fixed length tubing front end；

3) shift fork cylinder A9.2 drives shift fork A9.15, stirs spring clip and travels forward, and the front end of spring clip is received the conical surface The extruding of A9.24 and shrink, by the back end grip of fixed length tubing on the plug A9.19.1 for sending tube core bar A9.19 front ends；

4) in No. three drive lower swing 180 degrees of drive mechanism A9.11, bulb core bar A9.4 coordinates semicircle to swing span A9.3 The interlude of fixed length tubing A14.1 is bent camber by mould A9.6；

5) after circumference indexing assembly drives clamp mechanism A12.2 to move to the fixed length tubing front for bending, thimble gas Cylinder A9.18 promotes thimble, the fixed length tubing push-in fixture that semicircle mould A9.6 will bend；

6) swing span A9.3, shift fork A9.15, send tube core bar A9.19 and thimble to reset, wait bend pipe next time.

As shown in Figure 26, Figure 29 to Figure 31, the clamp mechanism A12.2 of the circumference indexing assembly A12 includes a clamp branch Seat A12.2.6, an at least one discharging push pedal A12.2.7, at least U bent clamps A12.2.9 and a lifting frame A12.2.2；Clamp It is fixed at the top of bearing on rotating turret A12.3, the front of clamp bearing offers the circular arc of at least one and the short U bend pipes of thin-walled The adaptable arc groove A12.2.10 of section, the bottom land of arc groove offers the groove for extending to the clamp bearing back side, The front end of the discharging push pedal is formed with the arc port being adapted with arc groove, and is inserted into arc groove always from groove；Folder The back side of pipe support is provided with elastic pusher A12.2.4, and the tail end of the push pedal that discharges is connected on elastic pusher, and the two of the elastic pusher End is positioned at the back side of clamp bearing by removable pin A12.2.3, and spring is provided between the middle part of elastic pusher and clamp bearing A12.2.5；Installing port is offered on the upside of the arc groove, U bent clamps moving up and down, the U are installed in installing port The lower surface of bent clamp has a projection, and upper end is provided with a spring A12.2.8, and projection is extend into the arc groove；U is curved The two ends of pressing plate are connected with lifting frame, and T-shaped block A12.2.1 is formed with the top of lifting frame.

As shown in Figure 27,28, the clamp mechanism A12.2 of the circumference indexing assembly A12 also includes a shift mechanism A15, The shift mechanism includes a lifting pedestal A15.5, two lifting arm A15.2, A15.3 and at least one lifting cylinder A15.1, lifting pedestal is fixed in frame, and the stage casing of two lifting arms is hinged on lifting pedestal, two tail ends of lifting arm Push rod with lifting cylinder is connected, and the head end of two lifting arms is hung to bend pipe assembly and set weld-ring assembly, and two liftings The bottom surface of the head end of arm is connected with a liftable lifting block A15.4, and the bottom of the lifting block is formed with and is adapted with T-shaped block Lifting groove A15.6.

The discharging cylinder A17 is positioned opposite with set weld-ring assembly, and the push rod of the cylinder that discharges is towards the bullet in clamp mechanism Property push pedal A12.2.4 back side arrangement, when ejecting rod of cylinder is not extended out, do not contacted with elastic pusher A12.2.4.

As shown in Fig. 1 to Fig. 3, a shaping assembly A11 is additionally provided between the bend pipe assembly and set weld-ring assembly.As schemed 21st, shown in Figure 22, it is solid that the shaping assembly includes being fixed on shaping pedestal A11.1 in frame, shaping sliding seat A11.6, shaping Reservation A11.13, two shaping sliding shoe A11.4.1, A11.4.2 and three drive mechanisms.Shaping sliding seat is led by No. one Rail secondary A11.7 (being made up of guide rail and sliding block) is arranged on shaping pedestal, and is connected with the first drive mechanism.Shaping fixed seat is consolidated The top of shaping sliding seat is scheduled on, two shaping sliding shoes are slippingly arranged in shaping fixed seat, each shaping sliding shoe Front end the shaping component A11.10 of the straight length shaping for short U bend pipes is installed, wherein, the first shaping sliding shoe A11.4.1 is connected with the second drive mechanism, and the second shaping sliding shoe A11.4.2 is connected with the 3rd drive mechanism.

First drive mechanism of the shaping assembly A11 includes a shaping cylinder A11.9.1 and a connecting rod A11.5, a shaping cylinder is fixed on the bottom of shaping pedestal, and the lower end of a connecting rod is connected to No. two guideway A11.11 It is hinged on (being made up of guide rod and sliding block) and with the push rod of a shaping cylinder, shaping pedestal is hinged in the middle part of a connecting rod On, a top for connecting rod is hinged after passing through shaping pedestal with shaping sliding seat.

Second drive mechanism of the shaping assembly A11 includes No. two shaping cylinder A11.9.2 and No. two connecting rods A11.8, No. two shaping cylinders are fixed on the bottom of shaping pedestal, and the lower end of No. two connecting rods is connected to No. three guideway A11.12 It is hinged on (being made up of guide rod and sliding block) and with the push rod of No. two shaping cylinders, shaping pedestal is hinged in the middle part of No. two connecting rods On, No. two tops of connecting rod are hinged after passing through shaping pedestal with the rear end A11.4.21 of the first shaping sliding shoe.

3rd drive mechanism of the shaping assembly A11 include motor A11.2 at the top of the shaping sliding seat and Vibrator A11.3, motor A11.2 is connected with vibrator A11.3, vibrator A11.3 and the second shaping sliding shoe A11.4.2 Connection.The vibrator A11.3 is existing eccentric type vibrator, its output eccentric shaft, has a drive block to be arranged on by bearing On output shaft, drive block is hinged with the rear end A11.4.11 of the second shaping sliding shoe A11.4.2.

As shown in figure 23, the shaping component A11.10 of the shaping assembly A11 includes being fixed on shaping sliding shoe front end (each shaping sliding shoe front end is equipped with shaping sleeve A 11.10.1 for shaping sleeve A 11.10.1 and shaping core bar A11.10.2 And shaping core bar A11.10.2).Shaping core bar A11.10.2 is the multi-diameter shaft that back segment diameter is big, leading portion diameter is small.Multi-diameter shaft Back segment coordinate in shaping sleeve A 11.10.1, between the leading portion and shaping sleeve pipe of multi-diameter shaft formed one be beneficial to short U bend pipes The annular chamber of the straight length 4.1.1A insertions of 4.1A.The diameter of the leading portion of multi-diameter shaft matches with the internal diameter of straight length 4.1.1A, Carried out in straight length 4.1.1A location fit and inwall shaping, in order to preferably stretch into straight length, multi-diameter shaft for stretching into Leading portion is made taper or hemispherical foremost, or is made straight length 4.1.1A, arc section 4.1.2A with short U bend pipes 4.1A The adaptable shape of intermediate location.The internal diameter of shaping sleeve A 11.10.1 matches with straight length 4.1.1A external diameters, for straight The outer wall of pipeline section 4.1.1A carries out location fit and outer wall shaping, and the shaft shoulder A11.10.3 of multi-diameter shaft is used for the straight length that presses 4.1.1A end face carries out end face integer.

The operation principle of shaping assembly A11 is：When the clamp mechanism A12.2 of circumference indexing assembly clamps short U bend pipes 4.1A Arc section 4.1.2A, when turning to pipe end shaping machine structure described in the utility model, two straight lengths of short U bend pipes 4.1A 4.1.1A two shaping component A11.10 of shaping sliding shoe are faced；Two shaping cylinder gradation sequence actions a so that company Bar A11.5 and No. two connecting rod A11.8 also gradation sequence actions, promote forward two shaping sliding shoes so that two shaping components The shaping core bar A11.10.2 of A11.10 is inserted respectively into two endoporus of straight length 4.1.1A of short U bend pipes 4.1A, to straight The inwall of pipeline section carries out shaping, and the shaping sleeve A 11.10.1 of two shaping component A11.10 is also respectively fitted over two straight lengths 4.1.1A outer wall, the outer wall to straight length 4.1.1A carries out shaping, and shaft shoulder A11.10.3 enters to the end face of straight length 4.1.1A Row shaping；In reforming process, vibrator A11.3 vibrates under the vibration of motor A11.2, drives the second shaping pushing block A11.4.2 vibrates, impulse force excessive infringement mouth of pipe when can avoid shaping, and shaping completes exhaust hood and shrinks, shaping component and straight tube Section departs from, and waits shaping operation next time.The circumference indexing assembly of automatic moulding machine clamps short U bend pipes 4.1A and proceeds to next step Set weld-ring operation.

As shown in figure 32, the weld-ring feeding unit material 1A of the set weld-ring assembly A13, with a feeding device 1A, feeding The discharging opening of device is horizontally disposed, is sent out from discharging opening level after weld-ring 4A ordered arrangements.

Weld-ring pilot unit 2A, the unit has a guider, and the front of guider is formed with least two guiding Groove 234 (has 4 gathering sills, can carry out set weld-ring for two short U bend pipes of thin-walled) in figure, the top of each gathering sill passes through translot 231 are connected with the discharging opening, and padding ring mechanism is provided with translot, and weld-ring is pushed into gathering sill, each gathering sill bottom from translot End is formed with the outlet 235 of weld-ring, and the exit offers the through hole of insertion to the guider back side, and the front of guider is provided with The baffle mechanism for preventing the weld-ring in outlet from dropping.

Set weld-ring unit 3A, the unit is arranged on the back side of guider, (has 4 in figure with least two push rod 31A Push rod), the push rod cylinder assembly of driving push rod and drive push rod, the overall drive mechanism of push rod cylinder assembly, two push rods The push rod of component is inserted into the outlet of weld-ring along the through hole from the back side of guider, and the weld-ring set of outlet is set to short The straight length 4.1.1A at U bend pipe 4.1A two ends.

The feeding device is usually vibrating disk.As shown in figure 33, the guider includes fixed mount 3-1, guide plate 23 and cover plate 27.Guide plate 23 is fixed in frame vertically by fixed mount, as shown in figure 34, is offered at the top of guide plate The translot 231, the positive cell wall of translot offers at least two pusher grooves 232, and pusher groove extends to the front of guide plate.Lead At least two gathering sills are offered to the front of plate, the top of gathering sill is connected with pusher groove and junction is formed with beneficial to weldering The angle 233 of ring push-in.The cover plate is fixed on the front of guide plate and offers observation adjustment tank 28 corresponding with gathering sill. In addition, being fixed with top board 30 at the top of the guide plate, as shown in figure 38, also offered on the top board 30 and the translot 231 And the corresponding observation adjustment tank 28 of pusher groove 232.Observation adjustment tank is used to observe the situation of weld-ring, occur blocking when weld-ring or During the failures such as stacking, can be manually adjusted by the groove.

As shown in Figure 32, Figure 39, the padding ring mechanism includes being pawled positioned at two of translot front and back respectively 22, Each is pawled respectively has at least two fingers 22.1 and finger is corresponded with the pusher groove, and two fingers pawled are with respect to cloth Put and the distance between be adapted with the diameter of weld-ring.Two pawl between be fixedly connected by contiguous block 29 and transported so as to synchronous It is dynamic, one is provided with fixed mount and is pawled cylinder 21, the push rod of cylinder of pawling is pawled with one of them and is connected, so as to drive edge of pawling The top anterior-posterior horizontal sliding of pusher groove 232, glide direction is vertical with translot.

As shown in Figure 32, Figure 35, the baffle mechanism include baffle plate cylinder 25, guide post 25.1, fixed frid 24 and Baffle plate 26.Baffle plate cylinder is fixed in frame vertically, and the side vertical of baffle plate cylinder is provided with guide post.Fixed frid is fixed on leads To the front of device, the corresponding through hole of outlet 235 with weld-ring is offered on guide plate and fixed frid, fixed frid The back side offers limit guide groove vertically, and baffle plate is inserted between fixed frid and guide plate by limit guide groove, the bottom of baffle plate It is connected with the push rod of baffle plate cylinder 25 by connecting rod, connecting rod offers the pilot hole coordinated with the guide post.On the baffle plate Offer with weld-ring diameter be adapted large through-hole 242 and with the small through hole 241 at the top of large through-hole, be further opened with and lead To the corresponding observation adjustment tank of groove, large through-hole is less than weld-ring external diameter with diameter greater than weld-ring external diameter, small through hole diameter.Therefore, when small During through-hole alignment weld-ring, weld-ring cannot drop, and when large through-hole is directed at weld-ring, weldering can be pushed out from large through-hole.

As shown in figure 40, the overall drive mechanism include motor 32A, feed screw nut pair 314, guide rail slide block pair 316 with And sliding seat 315；Sliding seat is arranged in frame by the way that guide rail slide block is secondary, and motor drives sliding seat edge to lead by feed screw nut pair Rail sliding pair reciprocatingly slides, and glide direction is parallel with the through hole of guider.

As shown in figure 41, the push rod includes outer tube 312, throw-out collar core bar 311 and spring 318.The rear end of outer tube It is fixed on the sliding seat, the front end level of outer tube overhangs and inserted in its through hole from the back side of guider, outer tube External diameter more than weld-ring 4A internal diameter.Throw-out collar core bar is slidably insert into outer tube, throw-out collar core bar leading portion and outer tube with And the endoporus of weld-ring is adapted, (front end is sphere or the conical surface to the columned plug 311.1 that is formed with foremost of throw-out collar core bar To facilitate guiding), the endoporus of plug and short U bend pipes is adapted, and plug external diameter of the external diameter less than throw-out collar core bar leading portion.Throw-out collar The external diameter of core bar back segment is less than leading portion, and the spring is set in throw-out collar core bar back segment, before one end of spring is resisted against throw-out collar core bar The rear end face of section, the other end is resisted against on the tight sleeve 312.1 of outer tube rear end fixation.

As shown in figure 40, the push rod cylinder assembly includes push rod cylinder 313 and slides locating piece 317.The slip Locating piece 317 is slidably located in the back side of sliding seat 315 by least two cunnings, and slide bar is arranged in parallel with push rod, push rod Cylinder 313 is fixed on the back side for sliding locating piece, is offered on slip locating piece 317 corresponding with the push rod 313.1 of push rod cylinder Opening.The rear end of throw-out collar core bar 311 is connected after passing through sliding seat 315 with slip locating piece 317.The push rod of push rod cylinder 313.1 can be from opening through simultaneously top pressure to the back side of sliding seat 315, so that sliding locating piece 317 relative to sliding seat 315 Slide backward, pull the relative outer tube of throw-out collar core bar 311 to move backward.

Covering the operation principle of weld-ring assembly A13 is：

1) as shown in Figure 42 .1, under original state, outer tube 312 is located at the outlet rear side of weld-ring；The top of push rod cylinder 313 Bar 313.1 is forward extended out, and top makes slip locating piece 317 be slided backward relative to sliding seat 315 to the back side of sliding seat 315 always It is dynamic, pull the relative outer tube of throw-out collar core bar 311 to move backward, it is retracted into outer tube 312；The push rod of baffle plate cylinder 25 be in Under the state stretched out, baffle plate is in bottom, and small through hole 241 is directed at the outlet 235 of weld-ring；

2) start the vibrating disk of weld-ring feeding unit material 1A so that weld-ring monolayer alignment successively, and from the outlet of vibrating disk by Individual to enter into translot 231, weld-ring is moved along translot 231, and cylinder 21 of then pawling starts, make to pawl 22 the edge of finger 22.1 Pusher groove 232 to push in angle 233 weld-ring 4A, the weld-ring of angle 233 drops along gathering sill 234 under gravity To the outlet 235 of the weld-ring 4A of bottom；A weld-ring, in each cycle, gas of pawling are can only enter between two relative fingers Cylinder is entered in gathering sill by a weld-ring of pawling；

3) as shown in Figure 42 .2, after weld-ring 4A drops to outlet 235, the push rod retraction of push rod cylinder 313, in spring 318 In the presence of, throw-out collar core bar 311 and the slip forward slip of locating piece 317 abut to sliding seat until sliding locating piece 317 The back side (now outer tube 312 is motionless), the plug 311.1 of the front end of throw-out collar core bar 311 passes through weld-ring, and weld-ring is set into throw-out collar core On bar 311, it is ensured that weld-ring does not fall out；

4) as shown in Figure 42 .3, step 3 is completed) after, baffle mechanism work, the push rod retraction of baffle plate cylinder, the edge of baffle plate 24 Vertical direction upward sliding, until outer tube 312 and weld-ring are corresponding with the center of large through-hole 242 of baffle plate 24；Then it is overall Drive mechanism works, and drives outer tube 312 and the forward slip of throw-out collar core bar 311 by sliding seat 315, now throw-out collar core bar 311 plug 311.1 is inserted into the straight length 4.1.1A of short U bend pipes 4.1A, and throw-out collar core bar 311 is obstructed and does not continue to advance； During this, the arc section 4.1.2A of short U bend pipes 4.1A is gripped by other mechanisms；

5) as shown in Figure 42 .4, overall drive mechanism works on, and outer tube 312 moves on sliding seat 315, pushes away The compression spring 318 of ring core bar 311 is simultaneously retracted in outer tube 312, and the straight length 4.1.1A of short U bend pipes is inserted into outer tube 312 In, the weld-ring 4A on throw-out collar core bar 311 is nested on the straight length 4.1.1A of short U bend pipes 4.1A；In the process, it is fixed to slide Position block 317 is pushed back away from the back side of sliding seat 315 by throw-out collar core bar 311；

6) as shown in Figure 42 .5 and Figure 42 .6, the push rod of push rod cylinder 313 stretches out the simultaneously back of the body of the top pressure to sliding seat 315 Face, meanwhile, overall drive mechanism reverse operation drives sliding seat 315 to drive push rod and push rod cylinder 313 to move backward, directly To reset；Then baffle plate cylinder 25 drives baffle plate 24 to reset downwards, and cylinder 21 of pawling drives 22 resets of pawling, and waits next group and treats The short U bend pipes and weld-ring of the collar are in place.

Overall work principle of the present utility model is：

Copper pipe slides grip block and clamps by being straightened after tube straightener for pipe, afterwards by the air cylinder driven of slip clamping device Tubing, then clamps motor drive screw and drives travelling carriage sliding so that tubing send forward；

When tubing is sent to fixing and holding mechanism, the oscillating cylinder of fixing and holding mechanism drives swinging block to swing, so that will pipe Material is clamped, and now sliding clamping device can unclamp tubing and draw back, and carries out the action of feeding next time；

After tubing enters Pipe Cutting assembly, whole mouth core bar extend into the end of tubing, and the claw of cutterhead draws in, and cutter motor drives Movable knife disc rotates, and now whole mouth core bar keeps away cutter groove cutting blade can be allowed to cut off tubing；

Enter linear vibration feeder after tubing cut-out, interval feed appliance, interval feed appliance are moved forward to by vibration Two positioning cylinder alternations so that each passage every time only release a fixed length tubing (have 2 in figure to bend pipe assembly Passage, once releases 2)；

After fixed length tubing enters bend pipe assembly, fixed bending tube motor and feed screw nut pair drive the front end for sending tube core bar to insert Enter in fixed length tubing, and promote the other end of fixed length tubing to stretch out forward, the cylinder of bulb core bar promotes bulb core bar to stretch out And be inserted into fixed length tubing, by fixed length tubing top in place after, shift fork cylinder drive shift fork stir spring clip contraction, by fixed length pipe One end of material is clamped in the front end for sending tube core bar；Swing span swings 180 degree afterwards, and bulb core bar coordinates semicircle mould by fixed length tubing Interlude bend camber；

Now rotating turret drives one of clamp mechanism kinematic at bend pipe assembly, the lifting block and clamp of shift mechanism The T-shaped block of mechanism coordinates, and lifting cylinder action lifts U bent clamps, and thimble cylinder ejects semicircle mould, and the short U for bending is curved The arc section of pipe is entered into the arc groove of clamp machine；Then shift mechanism puts down T-shaped block, and U bent clamps compress short U bend pipes, Rotating turret rotates 90 degree to shaping assembly；

A number connecting rod of shaping assembly and No. two connecting rod gradation sequence actions, two straight lengths of short U bend pipes are inserted into shaping In component, shaping component line up carries out shaping, and in reforming process, vibrator vibrates under the driving of motor, drives it In the vibration of shaping pushing block, it is to avoid impulse force excessive infringement mouth of pipe during shaping；

After the completion of shaping, rotating turret is rotated 90 degree (now another clamp mechanism kinematic to feeding at bend pipe assembly), then 90 degree are rotated, (now another clamp mechanism kinematic is carried out to shaping assembly to carry out set weld-ring at clamp mechanism arrival set weld-ring Shaping)：

After the completion of set weld-ring, T-shaped block is put forward on shift mechanism, U bent clamps lift, release the clamping to short U bend pipes, now gone out Expect the push rod elongation of cylinder, top pressure discharging push pedal makes it eject short U bend pipes, drops in collection device and collect.Above-mentioned work During, each motor, vibrator and cylinder etc. are completed under industrial computer or PLC control system.

Finally it should be noted that listed above is only specific embodiment of the utility model.Obviously, this practicality is new Type is not limited to above example, can also there is many variations.One of ordinary skill in the art can be from disclosed in the utility model The all deformations directly derived in content or associated, are considered as protection domain of the present utility model.

Claims (13)

1. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring, it is characterised in that the automatic moulding machine is included with bottom Point：

One feeding assembly (A1), at least with a clamping device (A2) and a drive mechanism, by gripper mechanism grips Tubing (A14), the feeding forward under a drive for drive mechanism；

All pipe assemblies (A4), at least with a cutter mechanism and No. two drive mechanisms, are driven by No. two drive mechanisms Cutter mechanism is acted, and tubing is cut into fixed length tubing；

One bend pipe assembly (A9), at least with a fixed part, a semicircle mould (A9.6), a movable part and No. three drivings Mechanism (A9.7), fixed length tubing one end is clamped in fixed part, and activity coordinates in movable part after the other end crosses semicircle mould, by three Number drive mechanism drives movable part to swing, and the stage casing of fixed length tubing is bent into arc section around semicircle mould, forms the short U of thin-walled curved Pipe；

One circumference indexing assembly (A12), at least with a rotating turret (A12.3), clamp mechanism (A12.2), No. four drives Motivation structure (A12.1) and discharging cylinder (A17)；Clamp mechanism is arranged on rotating turret, and No. four drive mechanisms drive rotating turret Rotation so that clamp mechanism after the arc section clamping of the short U bend pipes of thin-walled and will drive it to rotate by bend pipe assembly；

A set of weld-ring assembly (A13), at least with a weld-ring feeding unit material (1A), weld-ring pilot unit (2A) and a set of weldering Ring element (3A), weld-ring pilot unit welding neck collar is oriented to and makes weld-ring ordered arrangement, covers weld-ring unit by the weld-ring of ordered arrangement Shift the straight length of the short U bend pipes of thin-walled onto.

2. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 1, it is characterised in that：It is described to send Material assembly also includes a tube straightener for pipe (A1.1), is arranged on the front end of feeding assembly, and tube straightener for pipe includes being arranged on frame On at least one set of aligns wheel, between every group of two row's aligns wheels of aligns wheel for tubing passage.

3. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 1 and 2, it is characterised in that：It is described Clamping device includes sliding clamping device and fixing and holding mechanism (A3)；Sliding clamping device includes being fixed on leading in frame Clamping motor (A2.1) and silk that rail (A10), the travelling carriage (A2.5) on guide rail, driving travelling carriage slide along guide rail Bar, at least one fixed clamp block (A2.4) on travelling carriage and at least one slide grip block (A2.3) and drive Slide the gripper cylinder (A2.2) of grip block；The fixed clamp block is fixed on slip grip block lower section, the vertical cloth of gripper cylinder Put and be connected with grip block is slided；Fixing and holding mechanism includes first fixed mount (A3.4) of vertical, is fixed on the Fixed block (A3.3), the swinging block (A3.2) being hinged on the upside of fixed block and the pendulum for driving swinging block to swing on one fixed mount Take offence cylinder (A3.1)；Swinging block is formed with arc port with the bottom of fixed block, and the clamp port of tubing is formed after closing up.

4. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 1, it is characterised in that：It is described to cut In pipe assembly (A4), cutter mechanism is included by the rack-mounted cutterhead of bearing (A4.5), the cutterhead for driving cutterhead to rotate Motor, three claws for being movably arranged on cutterhead end, the slip cap (A4.1) being set on cutterhead outer circumference surface and driving First push rod (A4.2) of slip cap sliding；Three claws are evenly arranged around the axis of cutterhead, and the axial location of cutterhead is opened Tubing passage is provided with, the afterbody of three claws is hinged in cutterhead, middle part is provided with spring, head stretches out the end face of cutterhead, and its In the head of two claws roller is installed, the head of another claw is provided with cutting blade (A4.4)；First push rod By Pipe Cutting motor pushing, the bottom of the first push rod is provided with roller (A4.3), and roller is resisted against the rear end of slip cap, the first push rod to When the movement of cutterhead end, slip cap extrudes three claws draws it in；

The Pipe Cutting assembly (A4) also includes the tubing of at least one whole mouthful of core bar (A5), the whole mouth core bar and cutter axis position Passage is coaxially arranged, and whole mouth core bar (A5) includes integrally formed guide section (A5.1), the whole mouth section being oriented to for tubing (A5.2) knife section (A5.3), interlude (A5.4) and drive connection section (A5.5), whole mouth section (A5.2) and interlude (A5.4), are kept away Diameter is identical, so as to ensure that the materials in the tube internal diameter after cutting is indeformable, keeps away knife Duan Youyi circle grooves and is formed, and knife is avoided during for Pipe Cutting Piece；The Pipe Cutting assembly (A4) is additionally provided with a core bar drive mechanism, including is fixed on positioning seat (A5-3), installation in frame Guide rod and sliding block (A5-2), a drive cylinder (A5-1) on positioning seat, whole mouth core bar drive connection section (A5.5) with Sliding block is connected, and sliding block is arranged on the guide rod being arranged in parallel with whole mouth core bar and is connected with drive cylinder.

5. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 1, it is characterised in that：It is described to cut A material transfer assembly is provided between pipe assembly and bend pipe assembly, the material transfer assembly is included between a linear vibration feeder and one Have a rest feed appliance, linear vibration feeder at least one has the elongated slot (A6) and a vibrator of guiding tubing, straight-line oscillation Feed appliance one end is arranged on the lower section of the cutter mechanism so as to accept the tubing of fixed length cutting, the other end and the interval feeding Device is docked；Interval feed appliance has at least one locating slot (A8), and the bottom land of locating slot is provided with two positioning of alternation Cylinder (A7), positioning cylinder push rod (A7-1) is stretched into groove from the bottom land of locating slot, the distance between two positioning cylinder push rods It is adapted with a fixed length tubing.

6. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 1, it is characterised in that：It is described solid Determine portion is used to install the bending die of semicircle mould (A9.6) including a bend pipe fixed seat (A9.17) being fixed in frame, one Plate (A9.12), promote the flexible thimble cylinder (A9.18) of semicircle mould, one by fixed bending tube motor (A9.8) and first Bend pipe core bar (A9.19), spring clip (A9.16), the driving spring of clamping fixed-length tubing that stem nut pair (A9.9) drives The shift fork (A9.15) and shift fork cylinder (A9.2) of folder；

The bend pipe fixed seat (A9.17) and bend pipe template (A9.12) are adjacent to arrangement, and bend pipe template (A9.12) is consolidated with bend pipe Reservation (A9.17) offers relative deep-slotted chip breaker, and the passage (A9.14) of the fixed length tubing (A14.1) of tubulose is formed after being adjacent to；Institute The sliding block (A9.22) for stating the first feed screw nut pair is connected to send tube core bar (A9.19), and this send the head system of tube core bar (A9.19) There is the first plug (A9.19.1) being adapted with fixed length inner hole of pipe, the diameter of the first plug (A9.19.1) is less than and send tube core bar (A9.19) diameter, so as to form for supporting with the transition position of tube core bar (A9.19) is sent in the first plug (A9.19.1) By the shaft shoulder of fixed length tubing (A14.1) end face；Send tube core bar that the passage (A9.14) of fixed length tubing, fixed length tubing are inserted from rear side Passage (A9.14) on front side of be formed with inner conical surface (A9.24), spring clip (A9.16), the bend pipe fixed seat are provided with inner conical surface Side offer groove, shift fork (A9.15) is hinged in groove, and the head of shift fork coordinates with the spring clip, afterbody and institute State the push rod connection of shift fork cylinder；

The front end of the bend pipe template (A9.12) is in semi-cylindrical and is installed with the semicircle mould (A9.6), semicircle mould (A9.6) Offer the half slot docked with the passage (A9.14) of the fixed length tubing (A14.1), the rear end one of semicircle mould (A9.6) into Type has a thimble for extending back (A9.10)；Through hole is offered in bend pipe template (A9.12), after thimble (A9.10) passes through through hole It is connected and driven with the thimble cylinder (A9.18).

7. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 6, it is characterised in that：The work Dynamic portion includes a swing span (A9.3), at least a bulb core bar (A9.4), a bulb core bar cylinder (A9.13)；The swing span (A9.3) the semi-cylindrical position of bend pipe template (A9.12) front end, vertical pendulum are hinged on by vertical pendulum moving axis (A9.7) Moving axis (A9.7) is connected with No. three drive mechanisms (A9.11), and bulb core bar cylinder is fixed with swing span (A9.3) (A9.13) and guide rail (A9.29), bulb core bar (A9.4) is slidably mounted in swing span (A9.3) by guide rail slide block pair On, and bulb core bar (A9.4) head towards the fixed length tubing passage (A9.14) arrange, bulb core bar cylinder (A9.13) top rod driving bulb core bar (A9.4) is moved back and forth along guide rail (A9.29)；

The movable part also includes that a bend pipe aids in mould (A9.27), the bend pipe to aid in mould (A9.27) to be fixed on swing span (A9.3) On, positioned at the head side of bulb core bar (A9.4), bend pipe aids in being offered on mould (A9.27) at least one with bulb core bar (A9.4) adaptable deep-slotted chip breaker (A9.27.1)；

The bulb core bar includes bulb (1), bearing pin (2), the second push rod (34) and core bar (3), and the left end of the core bar is formed with Endoporus (35), is provided with spring and the second push rod (34) in endoporus, the left end of bulb is hemisphere (11), and right-hand member is cylinder (12), cylinder (12) is inserted the endoporus of core bar and is hinged in endoporus by bearing pin (2), and cylinder (12) sets and spring between Put second push rod (34)；The end for sending tube core bar (A9.19) is formed with and is adapted with the hemisphere (11) of bulb (1) Spherical concave surface.

8. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 7, it is characterised in that：The ball The cylinder upper right corner of head is formed with arc tangent plane (14), and cylinder middle part is provided with the looping pit (13) for being hinged；The annular The hole wall in hole (13) is by circular No. two of an arc section (C1) of 1/2nd circles, straightway (L1), a quarter Arc section (C2), No. two straightways (L2), No. three arc sections (C3) of a quarter circle and No. three straightways (L3) are successively The loop of connection is constituted, and an arc section (C1), No. two arc sections (C2) and No. three arc section (C3) radiuses are equal；

The left end of the core bar (3) offers the pin-and-hole (32) for being hinged, and core bar is formed with right angle incision on the downside of left side (33), be arranged with the middle part of core bar (3) one for against and buffer the elastic tape (A9.4.1) of fixed length tubing (A14.1).

9. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 1, it is characterised in that：The folder Pipe mechanism includes a clamp bearing (A12.2.6), at least an at least clamp push pedal (A12.2.7), a U bent clamps (A12.2.9) And one lifting frame (A12.2.2)；It is fixed at the top of clamp bearing on rotating turret (A12.3), the front of clamp bearing opens up There is at least one arc groove (A12.2.10) adaptable with the arc section of the short U bend pipes of thin-walled, the bottom land of arc groove is opened up There is the groove for extending to the clamp bearing back side, the front end of the clamp push pedal is formed with the arc being adapted with arc groove Mouthful, and arc groove is inserted into always from groove；The back side of clamp bearing is provided with elastic pusher (A12.2.4), clamp push pedal Tail end is connected on elastic pusher, and the two ends of the elastic pusher are positioned at the back side of clamp bearing by removable pin (A12.2.3), Spring is provided between the middle part of elastic pusher and clamp bearing；Installing port is offered on the upside of the arc groove, in installing port U bent clamps moving up and down are installed, the lower surface of the U bent clamps has a projection, and it is recessed that projection extend into the arc In groove；The two ends of U bent clamps are connected with lifting frame, and T-shaped block (A12.2.1) is formed with the top of lifting frame.

10. the short U bend pipes automatic moulding machine of a kind of thin-walled with weld-ring according to claim 9, it is characterised in that：The folder Pipe mechanism also includes a shift mechanism (A15), and the shift mechanism includes lifting pedestal (A15.5), two lifting arms (A15.2, A15.3) and at least one lifting cylinder (A15.1), lifting pedestal is fixed in frame, in two lifting arms Section is hinged on lifting pedestal, and two tail ends of lifting arm are connected with the push rod of lifting cylinder, and the head end of two lifting arms overhangs To bend pipe assembly and set weld-ring assembly, and the bottom surface of two head ends of lifting arm is connected with a liftable lifting block (A15.4), the bottom of the lifting block is formed with the lifting groove (A15.6) being adapted with T-shaped block；

Discharging cylinder (A17) is positioned opposite with set weld-ring assembly, and the push rod of the cylinder that discharges is pushed away towards the elasticity of clamp mechanism The back side arrangement of plate.

A kind of 11. short U bend pipes automatic moulding machines of the thin-walled with weld-ring according to claim 1, it is characterised in that：It is described curved A shaping assembly (A11) is additionally provided between pipe assembly and set weld-ring assembly；The shaping assembly is whole in frame including being fixed on Shape pedestal (A11.1), shaping sliding seat (A11.6), shaping fixed seat (A11.13), two shaping sliding shoes and first, 2nd, the 3rd drive mechanism；Shaping sliding seat is arranged on shaping pedestal (A11.1) by guideway (A11.7), and with the One drive mechanism is connected；Shaping fixed seat (A11.13) is fixed on the top of shaping sliding seat (A11.6), two shaping sliding shoes Slippingly it is arranged in shaping fixed seat (A11.13), the front end of each shaping sliding shoe is provided with for short U bend pipes The shaping component (A11.10) of straight length (4.1.1A) shaping of (4.1A), wherein the first shaping sliding shoe (A11.4.1) and the Two drive mechanisms are connected, and the second shaping sliding shoe (A11.4.2) is connected with the 3rd drive mechanism.

A kind of 12. short U bend pipes automatic moulding machines of the thin-walled with weld-ring according to claim 1, it is characterised in that：The weldering Ring feeding unit material has at least one vibrating disk, and the discharging opening of vibrating disk is horizontally disposed, from discharging after weld-ring (4A) ordered arrangement The horizontal saliva of mouth is flat to be sent out；

The weld-ring pilot unit has a guider, and the front of guider is formed with least two gathering sills (234), respectively The top of gathering sill is connected by translot (231) with the discharging opening, padding ring mechanism is provided with translot, by weld-ring from translot Push-in gathering sill, each gathering sill bottom is formed with outlet (235) of the weld-ring exit and offers insertion to the guider back side Through hole, the front of guider is provided with the baffle mechanism for preventing the weld-ring in outlet from dropping；

The guider includes the second fixed mount (3-1), guide plate (23) and cover plate (27)；Guide plate (23) is by second Fixed mount (3-1) is fixed in frame vertically, and the translot (231), the positive groove of translot are offered at the top of guide plate (23) Wall offers at least two pusher grooves (232), and pusher groove extends to the front of guide plate；The front of guide plate offers at least two Gathering sill described in bar (234), the cover plate (27) is fixed on the front of guide plate and offers observation corresponding with gathering sill and adjusts Whole groove (28)；

The padding ring mechanism includes being pawled (22) positioned at two of translot front and back respectively, and each is pawled respectively has at least Two fingers (22.1) and finger is corresponded with the pusher groove (232), two fingers pawled it is positioned opposite and between Distance is adapted with the diameter of weld-ring (4)；Pawl for two and be fixedly connected so as to be synchronized with the movement by contiguous block (29) between (22), It is provided with one on second fixed mount to pawl cylinder (21), the push rod of cylinder of pawling is pawled with one of them and is connected, so as to drive push away Pawl slides along pusher groove (232) anterior-posterior horizontal, and glide direction is vertical with translot；

The baffle mechanism includes baffle plate cylinder (25), fixed frid (24) and baffle plate (26)；Baffle plate cylinder is fixed on vertically In frame；Fixed frid is fixed on the front of guider, and the outlet with weld-ring is offered on guide plate and fixed frid (235) corresponding through hole, the back side of fixed frid offers limit guide groove vertically, and baffle plate is inserted into fixing groove by limit guide groove Between plate and guide plate, the bottom of baffle plate is connected by connecting rod with the push rod of baffle plate cylinder；Offered on the baffle plate and weld-ring The adaptable large through-hole (242) of diameter and with the small through hole (241) at the top of large through-hole, be further opened with corresponding with gathering sill Observation adjustment tank, with diameter greater than weld-ring external diameter, small through hole diameter is less than weld-ring external diameter to large through-hole.

A kind of 13. short U bend pipes automatic moulding machines of the thin-walled with weld-ring according to claim 6, it is characterised in that：The set Weld-ring unit is arranged on the back side of guider, the push rod cylinder with least two the 3rd push rods (31A), the 3rd push rod of driving Component and drive the 3rd push rod, the overall drive mechanism of push rod cylinder, two push rods of push-rod assembly along the through hole from The back side of guider is inserted into the outlet of weld-ring, and the weld-ring set of outlet is set to the straight length at short U bend pipes two ends；

The overall drive mechanism includes motor (32A), the second feed screw nut pair (314), guide rail slide block pair (316) and slides Seat (315)；Sliding seat is arranged in frame by the way that guide rail slide block is secondary, and motor drives sliding seat to slide by the second feed screw nut pair Dynamic, glide direction is parallel with the through hole of guider；

3rd push rod includes outer tube (312), throw-out collar core bar (311) and spring；The rear end of outer tube is fixed on described On sliding seat (315), the front end level of outer tube (312) overhangs and is inserted in its through hole from the back side of guider；Throw-out collar core Bar (311) is slidably insert into outer tube (312), throw-out collar core bar (311) leading portion and outer tube and the endoporus phase of weld-ring Adapt to, throw-out collar core bar is formed with columned second plug (311.1) foremost, the endoporus of the second plug and short U bend pipes Be adapted, and the second plug external diameter less than throw-out collar core bar leading portion external diameter；The external diameter of throw-out collar core bar back segment is less than leading portion, described Spring is set in throw-out collar core bar back segment, and one end of spring is resisted against the rear end face of throw-out collar core bar leading portion, and the other end is resisted against overcoat The rear end of pipe；

The push rod cylinder assembly includes push rod cylinder (313) and slides locating piece (317), described to slide locating piece (317) The back side of sliding seat (315) is slidably located in by least two slide bars (319), slide bar and the 3rd push rod are arranged in parallel, Push rod cylinder (313) is fixed on the back side for sliding locating piece, slides the push rod offered on locating piece (317) with push rod cylinder (313.1) corresponding opening, the push rod of push rod cylinder can be from opening through the simultaneously back side of the top pressure to sliding seat (315)；Throw-out collar The rear end of core bar (311) is connected with slip locating piece (317) afterwards through sliding seat (315).