CN203245464U

CN203245464U - Tube coupling threading machining tool

Info

Publication number: CN203245464U
Application number: CN 201320229161
Authority: CN
Inventors: 张朝霞; 田军; 郭建文; 黄广勇; 高贤刚; 张发权; 詹浙东
Original assignee: DALIAN HUAER NUMERICAL CONTROL MACHINE TOOL Co Ltd
Current assignee: DALIAN HUAER NUMERICAL CONTROL MACHINE TOOL Co Ltd
Priority date: 2013-04-28
Filing date: 2013-04-28
Publication date: 2013-10-23
Anticipated expiration: 2023-04-28

Abstract

The utility model discloses a tube coupling threading machining tool comprising a machine tool base, a hydraulic cutter table fixed at the upper end of the machine tool base, a filing conveying machine arranged at the front end of the machine tool base, a longitudinal movable cross beam arranged at the upper end of the machine tool base, and a manipulator arranged on the longitudinal movable cross beam. Components and structural characteristics of parts are designed professionally according to the machining process, the specification range and the machining precision requirements of tube couplings. Meanwhile, the characteristic that tube coupling machining is similar to thin-wall sleeve machining is taken into consideration. Therefore, by means of matching of the manipulator and a three-jaw hydraulic chuck, the processes of material preparation and material conveying are finished. Besides, by means of the special turning design of the turning hydraulic chuck, the process requirements of one-time clamping and two-face machining are achieved.

Description

A kind of pipe joint thread cutting machine

Technical field

The utility model relates to the specialized nc machine tool that novel box cupling machine for threading relates to a kind of professional processing tube box cupling screw thread, the box cupling product quality of processing is higher than 5B and the 5CT standard in the API requirement, can produce simultaneously the high-end product of pipe box cupling, as: VAM button-type, SEC button-type, TCLL button-type, NEWVAM button-type, ANTARES button-type, TPCQ button-type, so the very strong a kind of pipe joint thread cutting machine of this lathe practicality in specialized process.

Background technology

Make big country as a numerically controlled lathe, the numerically controlled lathe output of China is very large, but product structure lags behind the market demand, lacks professional and comprehensive reliability.The numerically controlled lathe that China produces all belongs to universal process equipment, because lathe does not have the characteristic of professional consideration pipe box cupling screw thread processing in design, cause that common apparatus efficient in processing tube box cupling threaded process is low, the generation of unstable product quality situation, cause the waste of the energy and processing cost; And the raising of combined reliability depend on the high accuracy of machine tool component, high rigid components in running with the combining closely of high control precision software, to be implemented in the long-term stability of product quality in the process.Therefore we embody the lathe bed good rigidly, the rational characteristics of main shaft drives in design after the necessary condition of comprehensively considering pipe box cupling screw thread processing characteristics; Produce simultaneously the specificity lathe of the mechanical arm with specialty, professional chuck clamps and rotating knife platform.Can produce the technical conditions that this box cupling machine for threading depends on following home and overseas:

1, in recent years, the technology innovation that China's machined enterprise implement is a large amount of in the high-end process equipment of Introduced From Abroad, makes domestic machined level in steady-state growth, for the machining high-precision machine tool element provides reliable assurance.Simultaneously China has implemented a large amount of technology transfer and technological transformation equally in foundry industry, material heat treatment industry, for the processing of critical component provides good basis.Therefore impelled the assembling level of this numerically controlled lathe to reach world-class levels.

2, China's manufacturing industry has strengthened the attention degree to professional worker's energy parts in technology transfer and technological development, adheres to driving market with main frame, and market regulation is main, and it is auxiliary developing direction that policy is cultivated, and has strengthened capability for research and development and complete availability.By going deep into the skill element of the outer complete functional part of Analysis of domestic, let us is improved in the thought and knowledge angle, has promoted the application of new technology all critical components and part in this lathe.Good like this technology atmosphere has been established solid foundation for several functional part work of our research and development box cupling machine for threading.

3, enter 21 century, China's Hydraulic Industry technological progress is very fast, is domesticly obtaining very large progress aspect the Hydraulic Elements Electronic Control, but with compare the gap that also existence is very large abroad.In recent years, external transmission is because application electric technology, Computer Control Technology, automatic control technology, fretting wear technology and new technology new material technology have obtained new development, Hydraulic Elements and hydraulic system are greatly improved in level, emerge a collection of new and high technology that differs from one another and element, wherein also comprise lubrication technology and element.We stand on the platform of external hydraulic technique, utilize new and high technology and product, have finished the appropriate design of hydraulic overturn chuck and hydraulic swing rotor platform by the appropriate design of hydraulic principle and frame for movement.

4, at present external several electric software development producer, development can realize the high efficiency digital control system under the digital driving control rapidly aspect numerical control system.Such as: Siemens Company is in the short more than ten years, successively develop the numerical control systems such as SINUMERIK802D, SINUMERIK810D, SINUMERIK840D, particularly the SINUMERIK840D digital control system can be on the system platform of complexity, many creationary special technique functions are provided, select by various module any combination and function to system, realize the control to whole lathe.This is providing wide space for us aspect electrical control selection of Digit Control Machine Tool.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of pipe joint thread cutting machine of professional processing tube box cupling screw thread.

For reaching above purpose, be achieved through the following technical solutions:

A kind of pipe joint thread cutting machine comprises: lathe support, the hydraulic pressure cutter platform 2 that is arranged at lathe support upper end, the iron that is arranged at lathe support front end are cut transporter, lathe support upper end and are provided with and vertically move crossbeam, be arranged at the manipulator that vertically moves on the crossbeam; Lathe support tail end one side is provided with two upright supports beams, and front end one side is provided with single upright supports beam; Vertically move crossbeam one end and be fixed on two upright supports beams upper end, the other end is fixed on single upright supports beam upper end; Be fixed with centralising device on two upright supports beams; The pipe joint thread cutting machine is provided be used to the closed lathe shell that covers in lathe main frame outer end;

The lathe upper end is provided with 45 ° of oblique lathe beds; Be provided with main spindle box on the lathe, and the headstock spindle output is provided with the upset oild chuck; Hydraulic pressure cutter platform is arranged on 45 ° of oblique lathe beds of lathe;

Centralising device comprises: lower clamping limb, Bidirectional-screw and upper clamping limb; Bidirectional-screw is fixed on the excessive connecting plate, and is provided with the gap with excessive connecting plate surface; It is inboard that excessively connecting plate is fixed on two upright supports beams; Lower clamping limb and upper clamping limb place on the Bidirectional-screw by two opposite nut sleeve of rotation direction respectively; Be fixed with the two leads for lower clamping limb and upper clamping limb guiding on the fixed connecting plate; Be fixed with the hydraulic motor that rotates for driving two screw mandrels of Bidirectional-screw on the fixed connecting plate; Lower clamping limb upper surface is processed with the V-type groove;

In order to guarantee the Stability and veracity of semi-finished product box cupling its position in the centering clamping process, in the centralising device design, show as the up and down two ends on the same filament bar, adopted the screw mandrel screw design of the double rotational directions that rotation direction is opposite, pitch equates; Under the driving of hydraulic motor, make two opposite nuts of rotation direction drive the relative motion of lower clamping limb and upper clamping limb generation constant speed; The stability of the movement locus of lower clamping limb and upper clamping limb is by the positioning and guiding assurance of two leads; The rotation torque of hydraulic motor and rotary speed can be adjusted by hydraulic system, can guarantee low-speed motion and the high rigidity clamping of parts.Above feature has guaranteed that equipment after adjustment is installed, remains the center line of clamping box cupling and the stability of spindle centerline registration accuracy in long-term production process.

Manipulator comprises: be installed on and vertically move vertically moving dolly, be installed on the traversing guide rail that vertically moves on the dolly on the crossbeam; Traversing guide rail is connected with the transverse translation trolley body by the mode of roller set clamping; Be provided with feeding manipulator lifting arm and blanking mechanical hand lifting arm on the transverse translation trolley body, and be fixed with feeding manipulator hydraulic cylinder and the blanking mechanical hand hydraulic cylinder that moves up and down for driving feeding manipulator lifting arm and blanking mechanical hand lifting arm on the transverse translation trolley body;

The loading and unloading centralising device is positioned on two upright supports beams (lathe afterbody assembling and positioning) by connecting plate, so mechanical arm can be implemented in the semi-finished product box cupling of lathe trailing space crawl centralising device clamping.

In design, require the Clamping Center line of centralising device to overlap with spindle centerline, therefore the vertical displacement movement of mechanical arm is designed to two hydraulic cylinders (material loading hydraulic cylinder and blanking hydraulic cylinder) and controls respectively (total travel) sizing of a pair of lifting arm (feeding manipulator lifting arm and blanking mechanical hand lifting arm) and move; Simultaneously mechanical arm translation cylinder has been realized material loading and the blanking of two mechanical arms (feeding manipulator lifting arm and blanking mechanical hand lifting arm) in upset oild chuck center along the left and right sides translation of main shaft end face direction (be transverse translation trolley body by Driven by Hydraulic Cylinder along traversing guide rail with respect to vertically moving the dolly transverse translation); Vertically move dolly and be mechanical arm under the driving of servomotor and gear, tooth bar, vertically moving moving on the beam along axis direction, finished the position conversion from the centralising device to the machine chuck; Two little three-jaw fluid-pressure chucks have finished feeding under the drive of lifting arm, be installed and the work of blanking.The vertical lift of the mechanical arm of more than introducing moves, the clamping opening function of transverse shifting, length travel and three-jaw fluid-pressure chuck, has satisfied the technical process that lathe is got charging and blanking.The longitudinal movement rail of mechanical arm and translation guide rail all adopt steel guideway design, under the linear precision of steel guideway guarantees, make mechanical arm after the centralising device feeding, in the precision that once is installed of main shaft anchor clamps (upset oild chuck) less than 0.2mm.

The design of centralising device and mechanical arm and practice, perfect Digit Control Machine Tool under automatic condition to the automatic loading/unloading function of column operating mode part.

Lathe support upper end is 45 ° of oblique lathe beds, for this lathe, except main spindle box, the composition thinking of other several parts has continued the numerically controlled lathe mentality of designing that 45 ° of oblique lathe beds and steel guideway are assembled into feature basically, simultaneously according to processing technology and the required precision of managing box cupling, we have carried out the architecture advances of particularity to the rigidity of equipment in design, and for example: the Guide Rail Design of X-axis, Y-axis is steel guideway; The intensity of panel is improved; The X-axis balladeur train has increased hydro-cushion cylinder etc. in 45 ° of lathe bed directions.The strong stability of having supported its machining accuracy in the machine tooling process of these mechanical features.

The main spindle box design shows the process characteristic of pipe box cupling processing more, be described below: main spindle box has adopted the brand-new design of single main shaft, gearless, greatly simplified the complexity of main axle structure, in the running slowly of the big speed ratio of two belt pulleys, it is highly stable that its moment of torsion is transmitted, and speed control is more simple; Main shaft bearing has been selected two high-precision conical thrust roller bearings, has guaranteed the realization of high accuracy assembling standard; Main shaft has selected A11 spindle nose standard to connect with being connected of upset oild chuck, makes it connect precision and assemble intensity to be guaranteed; Main spindle box body is during welding for steel structure spare, adopts through stress failures technique after the welding, and then machine-shaping, its precision is high, good rigidly is the principal character of casing.

Also comprise in the lathe: supporter and oil path distributor.

Supporting body structure is the very high foundry goods of casting accuracy, fine finishining after the moulding, and the casting open space is for iron filings are got rid of passage.As the attaching parts of upset oild chuck and main shaft, the adpting flange of supporter is designed to the A11 spindle nose and connects, and has guaranteed positioning accuracy and the bonding strength of supporter and main shaft; Be designed with the assembly structure of upset oild chuck at the other end of supporter, and in its structure, be processed with two groups of four locating holes that vertical precision is very high, to realize the assembling and positioning of upset oild chuck; In supporter and annex, be designed with simultaneously various hydraulic circuits, realize take hydraulic operation finishing as each action of main upset oild chuck.

The upset oild chuck becomes the high-accuracy clamp of this lathe as the core component of this lathe.In design by cleverly hydraulic principle and oil circuit design, realized that the chuck exercises finish, in the high accuracy grade process of each parts, guaranteed the rear clamp precision to workpiece of its assembling simultaneously, this precision satisfies API standard and the special buckle processing criterion of box cupling.The action of upset oild chuck comprises: the actions such as clamping, high pressure six pawl clampings, chuck upset and locking chuck of feeling relieved synchronously of low pressure three-jaw.

Under the low-pressure state, feel relieved the synchronously basic ideas of clamping of three-jaw have been followed the theory of traditional scroll chuck centering clamping, in design dexterously with three pistons (claw) of circumference uniform distribution in six dog chucks, in the process that low pressure oil promotes to stretch out, by the assembling of 3 synchronous pins with 3 piston mesopores, simultaneously by selling synchronously the slide design of external part in 3 equal angles skewed slots of synchronous ring, realized that three pistons (claw) uniform velocity stretches out process, finished clamping and the centering to box cupling under the low-pressure state.That is to say: the principle of utilizing pressure sequence loop in the hydraulic system, be divided into two groups (3 one groups) in 6 hydraulic cylinders with the upset oild chuck, controlled by the two-way oil circuit, pressure oil is under the throttling control of oil circuit, low pressure oil enters road oil circuit control in the two-way, promoting 3 synchronous pistons stretches out, driving synchronous ring under 3 effects of selling synchronously rotates along chuck hub, forced synchronism pin constant speed movement in 3 chutes of synchronous ring in the synchronous ring rotary course has just guaranteed that also 3 piston constant speed stretch out.This take hydraulic pressure as power, the rigidity of machinery is 3 pistons movement at the uniform velocity of restriction, is invention main points of this chuck.

Be accompanied by the continuous supply of pressure oil, oil pressure raises, priority valve is opened, and pressure oil enters its excess-three hydraulic cylinder through an other oil circuit, and these three pistons begin to stretch out and holding workpiece.The clamping of these three pistons is referred to as floating clamping mechanism.Along with the continuous rising of pressure oil pressure, the pressure of two-way oil circuit rises to setting pressure simultaneously, 6 pistons under the pressure-acting of setting, high pressure holding workpiece (box cupling).

The thread forms of production tube box cupling is the inner hole thread bilateral symmetry, in processing technology, need the two sides to process respectively, the machining accuracy error that is installed and produces for fear of secondary, between supporter and upset oild chuck, the chuck turning device that designed take hydraulic pressure as power, double rack promotes the gear rotation.The piston rod exposed junction that stretches out of two hydraulic cylinders designs for tooth bar in this device, is key link in the turning device development process, basic; In the design take hydraulic power as motive force, by the reciprocating motion of hydraulic cylinder piston in the cylinder body of location, the rectilinear motion that has recycled tooth bar is converted into this Principle of Mechanical Designing of circular motion of trip shaft front end gear, has realized that gear shaft drives positive and negative 180 ° of upsets of chuck.

The upset oild chuck is by bearing assemble and gear shaft, hydraulic swing rotating shaft orientation assemble, realized the upset oild chuck in supporter along the location of 0 ° of axis direction of diaxon and the technical conditions of rotation.These technical conditions are stressed for the carrying of chuck in the process, these two location can't be realized, so we are at the axis direction of vertical teeth wheel shaft and hydraulic swing rotating shaft, designed two sleeve locking apparatus on 90 ° of axis.This device is take the operating principle of hydraulic cylinder as design basis, the end of stretching out of two pistons (locking pin) is designed to 45 ° of loading ends, under the promotion of two pistons (locking pin) in hydraulic power, stretch out, and insert in the locking bed of chuck cylindrical assembling, 45 ° of loading ends of 45 ° of loading ends of piston (locking pin) and locking bed contact, and bear hydraulic locking power load; Together with the design of the diaxon on 0 ° of axis direction, realize the four point positioning of chuck in supporter, guarantee the impact resistance of chuck in process.When piston (locking pin) under hydraulic pressure commutation control during rollback, chuck allows upset, upset location back piston (locking pin) stretches out locking again.

Oil path distributor is installed in the tail end of main shaft with respect to the upset oild chuck.Primary structure comprises: tailstock spindle, be processed with oil circuit cover, oil path block and the control valve etc. of annular oil groove.

Tailstock spindle is fastening lower in annular briquetting compacting, is fixed on main shaft tail, through adjustment its axis is overlapped with main-shaft axis in assembling; Inner by hollow spindle with 8 oil pipes before the assembling, 8 oilholes of tailstock spindle end are linked to each other with 8 oilholes of the supporter of front-end of spindle assembling, realization is overturn being communicated with of the required oil circuit of oild chuck and oil path distributor.The oil circuit cover is positioned on the tailstock spindle by the bearing assemble at two ends, in the main shaft rotary course, guarantees the perforation of oilhole passage in 8 oil grooves of oil circuit cover and the tailstock spindle.Oil path block is designed with asphalt channel, has played control valve and has been connected excessively with the oil circuit of oil circuit cover.The connection of above oil circuit has realized the oil circuit control from control valve to the upset oild chuck.This oil circuit control design with rotary body is a kind of novel oil control mentality of designing, and this thinking has realized the hydraulic control of hydraulic actuator in rotary course.

The design of hydraulic pressure cutter platform is in the processing technology that has taken into full account the pipe box cupling, finishes by Mechanics Calculation, and be a kind of hydraulic pressure cutter platform of satisfied heavy processing, be provided with the station of 4 installation knife bars.

Why the hydraulic pressure cutter platform of stating is referred to as heavy processing cutter platform, there are two kinds of frame for movements to satisfy the requirement of this feature: when one, designing locked hydraulic cylinder, satisfy the lifting of hydraulic locking power with the design form of double-piston stack, although hydraulic pressure cutter stage body is long-pending light and handy, its coupling mechanism force is far longer than the hydraulic pressure cutter platform of other models; Structurally the cylinder body of upper piston is fastened on the cutter platform base by the bolt of 16 M12, and the top of cutter platform base is the cylinder body of lower piston simultaneously, and this structure place has become the mechanics design of hydraulic action carrier centered by cutter platform base.Two, the knife bar seat contacts with rigidity between the cutter platform base, is that the engagement by a pair of annular gear ring realizes that this is installed in respectively gear ring, and the knife bar seat is large as far as possible with cutter platform base, rational circumferential location; 144 triangle straight-tooth are arranged on each gear ring, when promoting double-piston and rotating shaft, assembles when pressing down by pressure oil, under 6 M16 bolts connect, the knife bar seat drive that upper ring gear approaches and with the lower ring gear engagement of cutter platform base, 288 profile of tooth contact-making surfaces of this a pair of gear ring are by the effect of double-piston hydraulic downforce, can have extremely strong impact resistance, to satisfy the designing requirement of processing mechanics.

The hydraulic pressure cutter platform of stating is 4 station cutter platforms, is equipped with on each station to satisfy the cutter that different processing technologys require.Can be according to the processing sequence of cutter in the production process, the selection of being undertaken by nc program improves working (machining) efficiency, has therefore designed whirligig in hydraulic pressure cutter platform structure, to satisfy the technique behavior.The mentality of designing of whirligig derives from action control principle and the flow-control principle of oil circuit in the hydraulic system.

The design feature of oil circuit control shows as: one, the rise of knife bar seat, depressing action and spinning movement, is that the enforcement of the mentality of designing selected by a reversal valve control, many oil circuits realizes; The sequence of movement of its knife bar seat is: the initial locking state → first step of depressing: the knife bar seat rises (the gear ring engagement is opened) → second step: knife bar seat rotation and stopping → knife bar seat is depressed locking (the gear ring engagement is locked).In the process in first and second step, implemented fuel feeding in hydraulic motor and the hydraulic locking cylinder cavity of resorption by reversal valve 1, the promotion double-piston rises, after latching ram driven rotary axle and the rise of knife bar seat (a pair of gear ring engagement that is installed on knife bar seat and the cutter platform base is opened), hydraulic motor is finished rotation by a pair of bevel gear driven rotary body, rotating shaft, knife bar seat under the effect of pressure oil; When the knife bar seat forwards required station to, under the control of reversal valve commutation, pressure oil and oil return are changed in the oil circuit, pressure oil enters hydraulic locking cylinder epicoele and hydraulic motor counter-rotating oil circuit, because the forward oil return opening at hydraulic motor is provided with hydraulically-controlled one-way valve, make pressure oil inoperative to the counter-rotating of hydraulic motor, hydraulic motor and rotary part stop operating, pressure oil enters the hydraulic locking cylinder epicoele and promotes double-piston descending, is installed in a pair of gear ring engagement locking on knife bar seat and the cutter platform base.

Two, the design feature of flow-control shows as: when hydraulic motor drive knife bar seat rotates to the setting anglec of rotation, need to satisfy the specification requirement of rotating deceleration and stopping to locate, so we have designed the location backing pin among cutter platform base.The location backing pin is installed on, is embedded in the cylinder body of cutter platform base with the mentality of designing of hydraulic cylinder piston, when the knife bar seat rotates to set angle, oil circuit control by reversal valve 2, the location backing pin stretches out, collar stop in the rotary body touches the block face of location backing pin front end in rotation, and in reversal valve 1 commutation, realize stopping the location.Oil circuit control by reversal valve 2, location backing pin can realize stretching out the conversion with two positions of rollback; We have utilized the change in location of location backing pin in design, have designed large oilhole, cone-shaped oil reservoir, little oilhole connection oil circuit, oil return circuit and its perforation of simultaneously hydraulic motor rotation at the location backing pin; Under the backing pin rollback state of location, large oilhole communicates with the oil return circuit of hydraulic motor, hydraulic motor under the oil return of large flow is controlled, fast rotational; After the location backing pin stretched out, little oilhole communicated with the oil return circuit of hydraulic motor, and hydraulic motor rotates at a slow speed under the oil return control of low discharge; In the motion process that the location backing pin stretches out, cone-shaped oil reservoir has played fast rotational to the over effect that rotates at a slow speed.

Electric part: a complete set of equipment (main frame+auxiliary loading and unloading equipment) is equipment for automatically processing, and is designed with relatively independent facility part.This equipment configuration be latest generation Siemens CNC control system, the Siemens's device that is equipped with simultaneously efficient PLC(and CNC to be complementary), to guarantee the normal operation of lathe.

The a whole set of electrical equipment that provides has adopted the dispersion mounting means, to reduce maintenance time and maintenance cost.

Each capital equipment of pipe joint thread cutting machine all is furnished with the distribution box of oneself, breaker, relay, output input module etc. is housed, such as main frame, loading and unloading equipment, Hydraulic Station, emulsion station etc.

Each capital equipment all is furnished with the distribution box of oneself, and breaker, relay, output input module etc. are housed, such as main frame, loading and unloading equipment, Hydraulic Station, emulsion station etc.In addition, main electrical control cabinet is installed all electric components, such as main circuit device, CNC module, axle driver module and main shaft drives module etc.

Closed lathe cover top portion is provided with automatic door, and outer setting has portable guidance panel;

Guidance panel is installed on the main frame by lever arm, and guidance panel can make operating personnel handle main frame and other auxiliary equipment by button and other potentiometers, and this guidance panel has the control characteristic of the man-machine combination of height, is easy to use.The shift action of lever arm can allow operating personnel observe at any time the interior situation of lathe, thus the risk that the reduction accident occurs.The mode of insertion/extract has been adopted in the connection of cable, and easy to replace and maintain, the improvement of cable has been to use the high-flexibility cable that can arbitrarily move.

The utility model design of employing said structure forms the architectural characteristic with each parts, carries out professional design round the requirement of processing technology, specification limit and the machining accuracy of managing box cupling fully; Consider simultaneously the feature of the approximate thin-wall sleeve processing of pipe box cupling processing, therefore prepare, fetch and deliver in the material process in feeding that its equipment has the very high accuracy of manufacture and assembly precision, this is fully reflected in manufacturing and designing; And utilize the hydraulic overturn chuck design, realized once being installed, the technological requirement of two sides processing.

To sum up the design of the utility model pipe box cupling machine for threading composition carries out Design and manufacture round processing technology requirement and the machining feature of pipe box cupling basically, by long term production, prove that this lathe is a numerical control device that the cover working (machining) efficiency is high, machining accuracy is high.The open manufacturing mentality of designing of China NC Machine has promoted the manufacture level of China NC Machine.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.

Description of drawings

The utility model is totally 4 width of cloth accompanying drawings, wherein:

Fig. 1 is side-looking structural representation of the present utility model.

Fig. 2 is A-A cross-sectional view of the present utility model.

Fig. 3 is B-B cross-sectional view of the present utility model.

Fig. 4 is C-C cross-sectional view of the present utility model.

The specific embodiment

A kind of pipe joint thread cutting machine as shown in Figures 1 to 4 comprises: lathe support 1, the hydraulic pressure cutter platform 2 that is arranged at lathe support 1 upper end, the iron that is arranged at lathe support 1 front end are cut transporter 3, lathe support 1 upper end and are provided with and vertically move crossbeam 4, be arranged at the manipulator 5 that vertically moves on the crossbeam 4; Lathe support 1 tail end one side is provided with two upright supports beams 6, and front end one side is provided with single upright supports beam 6.1; Vertically move crossbeam 4 one ends and be fixed on two upright supports beam 6 upper ends, the other end is fixed on single upright supports beam 6.1 upper ends; Be fixed with centralising device 7 on two upright supports beams 6; The pipe joint thread cutting machine is provided be used to the closed lathe shell 8 that covers in lathe main frame outer end;

The lathe upper end is provided with 45 ° of oblique lathe beds; Be provided with main spindle box 10 on the lathe, and main spindle box 10 main shaft outputs are provided with upset oild chuck 9; Hydraulic pressure cutter platform 2 is arranged at (45 ° of oblique lathe beds of lathe inclined-plane is fixed with cutter twin shaft balladeur train, and hydraulic pressure cutter platform 2 bolts by six M20 are fixed on the X-axis balladeur train of cutter twin shaft balladeur train) on 45 ° of oblique lathe beds of lathe;

Manipulator 5 comprises: be installed on and vertically move vertically moving dolly 5.1, be installed on the traversing guide rail 5.2 that vertically moves on the dolly 5.1 on the crossbeam 4; Described traversing guide rail 5.2 is connected with transverse translation trolley body 5.3 by the mode of roller set clamping; Be provided with feeding manipulator lifting arm 5.4 and blanking mechanical hand lifting arm 5.5 on the transverse translation trolley body 5.3, and be fixed with feeding manipulator hydraulic cylinder 5.6 and the blanking mechanical hand hydraulic cylinder 5.7 that moves up and down for driving feeding manipulator lifting arm 5.4 and blanking mechanical hand lifting arm 5.5 on the transverse translation trolley body 5.3;

Centralising device 7 comprises: lower clamping limb 7.1, Bidirectional-screw 7.2 and upper clamping limb 7.3; Bidirectional-screw 7.2 is fixed on the excessive connecting plate 11, and is provided with the gap with excessive connecting plate 11 surfaces; Excessively connecting plate 11 is fixed on two upright supports beam 6 inboards; Lower clamping limb 7.1 and upper clamping limb 7.3 place on the Bidirectional-screw 7.2 by two opposite nut sleeve of rotation direction respectively; Be fixed with the two leads for lower clamping limb 7.1 and upper clamping limb 7.3 guiding on the fixed connecting plate 11; Be fixed with the hydraulic motor 7.4 that rotates for driving 7.2 two screw mandrels of Bidirectional-screw on the fixed connecting plate 11; Lower clamping limb 7.1 upper surfaces are processed with the V-type groove;

Closed lathe shell 8 tops are provided with automatic door, and outer setting has portable guidance panel 12;

The pipe joint thread cutting machine is equipped with Hydraulic Station 13, and namely Hydraulic Station 13 is connected with pipe joint thread cutting machine fluid pressure line; The pipe joint thread cutting machine is equipped with emulsion system 14, i.e. emulsion system 14 and pipe joint thread cutting machine cooling line;

In order to guarantee the Stability and veracity of semi-finished product box cupling its position in the centering clamping process, in centralising device 7 designs, show as the up and down two ends on the same filament bar, adopted the screw mandrel screw design of the double rotational directions that rotation direction is opposite, pitch equates; Under the driving of hydraulic motor 7.4, make two opposite nuts of rotation direction drive the relative motion of lower clamping limb 7.1 and upper clamping limb 7.3 generation constant speed; The stability of the movement locus of lower clamping limb 7.1 and upper clamping limb 7.3 is by the positioning and guiding assurance of the two leads of middle device; The rotation torque of hydraulic motor 7.4 and rotary speed can be adjusted by hydraulic system, can guarantee low-speed motion and the high rigidity clamping of parts.Above feature has guaranteed that equipment after adjustment is installed, remains the center line of clamping box cupling and the stability of spindle centerline registration accuracy in long-term production process.

The loading and unloading centralising device is positioned on two upright supports beams 6 (lathe afterbody assembling and positioning) by connecting plate, so manipulator 5 can be implemented in the semi-finished product box cupling of lathe trailing space crawl centralising device 7 clampings.

The design of centralising device 7 and manipulator 5 and practice, perfect Digit Control Machine Tool under automatic condition to the automatic loading/unloading function of column operating mode part.

Lathe support 1 upper end is 45 ° of oblique lathe beds, for this lathe, except main spindle box, the composition thinking of other several parts has continued the numerically controlled lathe mentality of designing that 45 ° of oblique lathe beds and steel guideway are assembled into feature basically, simultaneously according to processing technology and the required precision of managing box cupling, we have carried out the architecture advances of particularity to the rigidity of equipment in design, and for example: the Guide Rail Design of X-axis, Y-axis is steel guideway; The intensity of panel is improved; The X-axis balladeur train has increased hydro-cushion cylinder etc. in 45 ° of lathe bed directions.The strong stability of having supported its machining accuracy in the machine tooling process of these mechanical features.

Also comprise in the lathe: supporter and oil path distributor 15;

Supporting body structure is the very high foundry goods of casting accuracy, fine finishining after the moulding, and the casting open space is for iron filings are got rid of passage.As the attaching parts of upset oild chuck 9 with main shaft, the adpting flange of supporter is designed to the A11 spindle nose and connects, and has guaranteed positioning accuracy and the bonding strength of supporter and main shaft; Be designed with the assembly structure of upset oild chuck 9 at the other end of supporter, and in its structure, be processed with two groups of four locating holes that vertical precision is very high, to realize the assembling and positioning of upset oild chuck 9; In supporter and annex, be designed with simultaneously various hydraulic circuits, realize take hydraulic operation finishing as 9 each action of main upset oild chuck.

Oil path distributor 14 is installed in the tail end of main shaft with respect to upset oild chuck 9.Primary structure comprises: tailstock spindle, be processed with oil circuit cover, oil path block and the control valve etc. of annular oil groove.

Tailstock spindle is fastening lower in annular briquetting compacting, is fixed on main shaft tail, through adjustment its axis is overlapped with main-shaft axis in assembling; Inner by hollow spindle with 8 oil pipes before the assembling, 8 oilholes of tailstock spindle end are linked to each other with 8 oilholes of the supporter of front-end of spindle assembling, realization is overturn being communicated with of oild chuck 9 required oil circuits and oil path distributor 14.The oil circuit cover is positioned on the tailstock spindle by the bearing assemble at two ends, in the main shaft rotary course, guarantees the perforation of oilhole passage in 8 oil grooves of oil circuit cover and the tailstock spindle.Oil path block is designed with asphalt channel, has played control valve and has been connected excessively with the oil circuit of oil circuit cover.The connection of above oil circuit has realized the oil circuit control from control valve to upset oild chuck 9.This oil circuit control design with rotary body is a kind of novel oil control mentality of designing, and this thinking has realized the hydraulic control of hydraulic actuator in rotary course.

The design of hydraulic pressure cutter platform 2 is in the processing technology that has taken into full account the pipe box cupling, finishes by Mechanics Calculation, and be a kind of hydraulic pressure cutter platform 2 of satisfied heavy processing, be provided with the station of 4 installation knife bars.

Why the hydraulic pressure cutter platform 2 of stating selects heavy processing cutter platform, there are two kinds of frame for movements to satisfy the requirement of this feature: when one, designing locked hydraulic cylinder, satisfy the lifting of hydraulic locking power with the design form of double-piston stack, although hydraulic pressure cutter stage body is long-pending light and handy, its coupling mechanism force is far longer than the hydraulic pressure cutter platform 2 of other models; Structurally the cylinder body of upper piston is fastened on the cutter platform base by the bolt of 16 M12, and the top of cutter platform base is the cylinder body of lower piston simultaneously, and this structure place has become the mechanics design of hydraulic action carrier centered by cutter platform base.Two, the knife bar seat contacts with rigidity between the cutter platform base, is that the engagement by a pair of annular gear ring realizes that this is installed in respectively gear ring, and the knife bar seat is large as far as possible with cutter platform base, rational circumferential location; 144 triangle straight-tooth are arranged on each gear ring, when promoting double-piston and rotating shaft, assembles when pressing down by pressure oil, under 6 M16 bolts connect, the knife bar seat drive that upper ring gear approaches and with the lower ring gear engagement of cutter platform base, 288 profile of tooth contact-making surfaces of this a pair of gear ring are by the effect of double-piston hydraulic downforce, can have extremely strong impact resistance, to satisfy the designing requirement of processing mechanics.

The hydraulic pressure cutter platform 2 of stating is 4 station cutter platforms, is equipped with on each station to satisfy the cutter that different processing technologys require.Can be according to the processing sequence of cutter in the production process, the selection of being undertaken by nc program improves working (machining) efficiency, has therefore designed whirligig in hydraulic pressure cutter platform 2 structures, to satisfy the technique behavior.The mentality of designing of whirligig derives from action control principle and the flow-control principle of oil circuit in the hydraulic system.

Two, the design feature of flow-control shows as: when hydraulic motor drive knife bar seat rotates to the setting anglec of rotation, need to satisfy the specification requirement of rotating deceleration and stopping to locate, so we have designed the location backing pin among cutter platform base.The location backing pin is installed on, is embedded in the cylinder body of cutter platform base with the mentality of designing of hydraulic cylinder piston, when the knife bar seat rotates to set angle, oil circuit control by reversal valve, the location backing pin stretches out, collar stop in the rotary body touches the block face of location backing pin front end in rotation, and in reversal valve 1 commutation, realize stopping the location.Oil circuit control by reversal valve, location backing pin can realize stretching out the conversion with two positions of rollback; We have utilized the change in location of location backing pin in design, have designed large oilhole, cone-shaped oil reservoir, little oilhole connection oil circuit, oil return circuit and its perforation of simultaneously hydraulic motor rotation at the location backing pin; Under the backing pin rollback state of location, large oilhole communicates with the oil return circuit of hydraulic motor, hydraulic motor under the oil return of large flow is controlled, fast rotational; After the location backing pin stretched out, little oilhole communicated with the oil return circuit of hydraulic motor, and hydraulic motor rotates at a slow speed under the oil return control of low discharge; In the motion process that the location backing pin stretches out, cone-shaped oil reservoir has played fast rotational to the over effect that rotates at a slow speed.

The a whole set of electrical equipment that provides has adopted the dispersion mounting means, to reduce maintenance time and maintenance cost.Each capital equipment all is furnished with the distribution box of oneself, and breaker, relay, output input module etc. are housed, such as main frame, loading and unloading equipment, Hydraulic Station 12, emulsion cooling system 13 etc.In addition, main electrical control cabinet is installed all electric components, such as main circuit device, CNC module, axle driver module and main shaft drives module etc.Guidance panel is installed on the main frame by lever arm, and guidance panel can make operating personnel handle main frame and other auxiliary equipment by button and other potentiometers, and this guidance panel has the control characteristic of the man-machine combination of height, is easy to use.The shift action of lever arm can allow operating personnel observe at any time the interior situation of lathe, thus the risk that the reduction accident occurs.The mode of insertion/extract has been adopted in the connection of cable, and easy to replace and maintain, the improvement of cable has been to use the high-flexibility cable that can arbitrarily move.

Supplementary notes:

One, loading and unloading and centralising device and automatic manipulator device are positioned the frame-type combination beam, and wherein the longitudinal translation beam can satisfy the space that manipulator transports semi-finished product box cupling and finished product box cupling apart from the height at lathe top.These two kinds of installation compositions lathe automatic loading/unloading equipment, this statement equipment has good preparatory for the loading and unloading process of lathe, be the full-automatic loading and unloading equipment of a cover.

The loading and unloading aligning equipment comprises material loading skewed slot, stirring arm, centralising device, blanking elevating mechanism and blanking skewed slot.Described each structure is positioned on two upright supports beams by alignment pin and bolt on the excessive connecting plate, and above-mentioned part is positioned at the main frame afterbody.The semi-finished product box cupling rolls in the stirring arm along the material loading skewed slot, and hydraulic lever stretches out, the stirring arm rises, and the semi-finished product box cupling ploughs under (the V-type groove of lower clamping limb) in the centering bracket, and hydraulic lever rollback, stirring arm fall after rise, waits next time circulation; After the semi-finished product box cupling ploughed under the V-type groove of lower clamping limb, the centering clamping device was finished holding action by upper clamping limb and lower clamping limb under the driving of hydraulic motor, and the semi-finished product box cupling is clamped in alignment of shafts line position, waited for the feeding manipulator feeding.When the blanking manipulator transports processed finished products to the top of blanking elevating mechanism, Hydraulic Cylinder blanking V-type groove mechanism rises, and manipulator is placed on finished product in the V-type groove, and hydraulic cylinder rollback, blanking V-type groove mechanism descend, when the high point that descends was lower than the blanking skewed slot, the finished product box cupling rolled out along the blanking skewed slot.

The structures such as automatic manipulator equipment comprises longitudinal rail, vertically moves dolly, transverse shifting trolley body, feeding manipulator, blanking mechanical hand.Longitudinal rail is embedded in translation beam, for manipulator provides stable structure along the displacement of main-shaft axis direction; Vertically move dolly in the process of six groups of roller bearing clamping longitudinal rails, possessed location and the mobile condition of dolly, its power forms and comprises that servomotor and rack-and-pinion assembling finish, and this control mode has guaranteed little, the accurate positioning of move distance error; The transverse shifting trolley body is equally in the mode of roller set clamping, possessed at the location and the mobile condition that vertically move on the dolly, owing to displacement and location are fixed with respect to the alignment of shafts, provide mobile power by the certain hydraulic cylinder of stroke, the separately center of feeding manipulator and blanking mechanical hand and the transposition of the alignment of shafts are finished in the once round displacement of hydraulic cylinder; Feeding manipulator and blanking mechanical hand are respectively by two groups of bearing roller clamping positions, possessed the condition of on the transverse shifting trolley body, vertically moving, owing to vertical displacement and location are fixed with respect to the alignment of shafts, provided by the certain hydraulic cylinder of stroke to move up and down power; Manipulator takes, puts material and has adopted general three-jaw upset oild chuck form.

The vertical, horizontal of the displacement dolly that manipulator produces moves, and two manipulators move both vertically and action is decontroled in the clamping of little upset oild chuck, satisfied in the automatic loading/unloading process at low spot to pick and place the technological requirement that material, a high position transport; In design, also possessed simultaneously the self-centering condition.

Two, lathe

Main frame comprises: lathe support, main spindle box, upset oild chuck, cutter twin shaft balladeur train, hydraulic pressure cutter platform, closed lathe shell etc.We have determined the single shaft design of the oblique lathe bed design of 45 degree, main shaft in design, add upset oild chuck and the hydraulic pressure cutter platform of specialty processing box cupling, and the working (machining) efficiency of lathe is increased substantially, and first-time qualification rate reaches more than 98.5%.

1, lathe base is that cast iron quality casting forms, and carries out the fine finishining fitting surface after the moulding, is used for the link of main spindle box and cutter balladeur train part and fixing.

2, main spindle box body adopts during welding for steel structure to form, good rigidly, precision height, and main spindle box has adopted the method for designing of single main shaft, gearless simultaneously, has simplified the complexity of main axle structure, has greatly dissolved maintenance work.Inner hole of spindle diameter 150mm, the spindle nose form is A11; Spindle mounted has two high-precision bearings, belt pulley is installed on the main shaft, is positioned at the rear portion of rear main shaft bearing, and this design has reduced the running vibrations, transmit powerful main shaft rotary power by 5 odontoid belts, realized the necessary rotation of processing box cupling and rotation torque; The rotary type hydraulic distributor is installed on the main shaft rear end, with the control stamped fluid unit of the oil feed line composition hydraulic overturn chuck power oil that is positioned at inner hole of spindle.

3, the upset oild chuck forms has: adpting flange, chuck support body, chuck switching mechanism, locking chuck mechanism, upset oild chuck etc., adpting flange one side is connected with main-shaft spindle head, A11 spindle nose form is adopted in design, be fixed on the main shaft by the M22 bolt, the another side at the supporter rear portion, belongs to excessive connector by locating hole and bolted; The chuck support body is that the cast iron materials casting forms, and the casting through hole is for adding the channel of chip removal in man-hour; Overturning chuck is fixed in the supporter front end by the circular cylindrical shape trip shaft on two axis and locking guide pillar, and so far the rotation torque of main shaft then is delivered to chuck by adpting flange and supporter.

The upset oild chuck has been realized three-jaw low pressure centering clamping, the unsteady clamping of six pawl high pressure by the ingenious combination of hydraulic principle and frame for movement in design, and the theoretical chucking power of chuck can reach 166.29KN; 180 degree upsets of chuck are to finish by the chuck switching mechanism; Retaining mechanism is comprised of two hydraulic locking cylinders on the trip shaft 90 degree axis directions; It is fixing that trip shaft, locking pin become 4 of vertical direction between chuck and the supporter, located to become into chuck, supporter, main shaft the integral body of a rigidity; Designing to the box cupling process by these mechanics provides reliable stability.

4, twin shaft balladeur train assembling

Given figure box cupling machine for threading has adopted the oblique lathe bed design of 45 degree, and its twin shaft (X-axis, Y-axis) balladeur train trim designs has met both at home and abroad tiltedly lathe bed mentality of designing fully, and it is also identical to form structure.In order better to adapt to the high load capacity requirement, we have incorporated three kinds of new principles in design: selected the firm guide rail form of edge in the design, and reasonably increased the span between main guide rail and the secondary guide rail; Main guide rail is designed to square rail, has not only improved guide rail rigidity, increased simultaneously the sliding-contact area of axle balladeur train and guide rail, increased substantially flexing resistance and the bearing capacity of balladeur train; For the weight of balance X-axis balladeur train, designed the balance hydraulic cylinder of constant pressure control.Diaxon drives and all is designed to servomotor control.

5, hydraulic swing rotor platform is four station heavy hydraulic rotating knife platforms, comprising: cutter platform base, whirligig, rotating shaft, retaining mechanism, four station knife bar seats.Rotating shaft is positioned at middle, the vertical setting of cutter platform, and top is connected with the knife bar seat with alignment pin with screw, and the piston of middle part and piston hydraulic cylinder assembles, and the rotating shaft lower end is designed for spline, the female end of embedded rotating gear ring structure middle part spline design.When hydraulic valve control double-piston was descending, driven rotary axle and knife bar seat pressed down, realize being positioned on the knife bar seat and cutter platform base on the intermeshing and locking of a pair of locking gear ring, satisfy the required location of tool feeding and rigidity; When hydraulic valve control double-piston was up, this was to locking gear ring engagement disengagement, and hydraulic valve control hydraulic motor and bevel gear are rotated, and driven rotary gear ring structure, rotating shaft, knife bar seat are finished the rotation of cutter transposition.High pressure locking and the automatic position-changing of this cutter platform have satisfied the quantity-produced technological requirement.This cutter platform is fixed on the X-axis balladeur train with the bolt of six M20.

Three, hydraulic system

Hydraulic system is comprised of Hydraulic Station and 6 groups of valve groups, and Hydraulic Station has adopted the double pump design, opens one for one, all according to universal design standard configuration, for individual executive component provides power.

Four emulsion systems

Emulsion system is comprised of emulsion station and 1 group of valve group, and the double pump design has been adopted at the emulsion station, opens one for one, all according to universal design standard configuration, provides the high-pressure emulsion of cutter lubrication and cooling for processing.

Supposing does not have semi-finished product box cupling to be processed in the lathe, and do not have semi-finished product box cupling in the feed chute this moment yet.At first, the operative employee packs the semi-finished product box cupling into behind the feed chute, has at least a semi-finished product box cupling to rest on the setting gauge of skewed slot end, judges that the photoelectric cell that has material to exist signals to CNC and has at least a semi-finished product box cupling to be ready to be processed.First semi-finished product box cupling is transported in the hopper of centralising device bottom.When setting gauge returns, just stop in the skewed slot other semi-finished product box cupling.Like this, because setting gauge has been arranged, the semi-finished product box cupling will be transported on the lathe one by one.After the semi-finished product box cupling was sent into centralising device, the pusher hydraulic cylinder started, and limiting plate pushes away the semi-finished product box cupling and is put into correct feed entrance point.After this, the centralising device hydraulic motor is started working, and controls two clamping limbs and moves.Be installed in two material folding arm synchronous workings on the centralising device, bottom material folding arm (being loaded with the semi-finished product box cupling) rises, and material folding arm in top descends.When two material folding arms were run into the semi-finished product box cupling, this semi-finished product box cupling was centered on the material loading position.The previous mechanical arm fill arm that presets previously in the centering position is advanced to centralising device, and upset oild chuck 9 blocks first semi-finished product box cupling.Then longitudinal translation dolly (by driven by servomotor) is back to raised position and stops.Then two lifting arms (material loading and blanking) rise (by Driven by Hydraulic Cylinder) to vertical progressive position.The longitudinal translation dolly (wherein the material loading lifting arm is equipped with a semi-finished product box cupling) that is loaded with two lifting arms advances to the lathe top, waits at top door place.The top door is opened, and transverse translation dolly action (by Driven by Hydraulic Cylinder) is to down position simultaneously, and the feeding manipulator lifting arm drops in the lathe.Servomotor is sent to the semi-finished product box cupling in the upset oild chuck of feeding manipulator lifting arm lower end.After the upset oild chuck clamped the semi-finished product box cupling, the three-jaw fluid-pressure chuck of feeding manipulator lifting arm unclamped, and the feeding manipulator lifting arm turns back to its raised position, and the feeding manipulator lifting arm is upwards got back to its vertical advanced positions.After it passed through the top door, door was closed, machined circulation beginning this moment.Like this, in the time of machine tool running, other action of manipulator is also carried out simultaneously, can not affect fabrication cycles.

Machined:

When bore hole cutter head during near workpiece to be processed, main shaft starts.When main shaft reached rated speed, the operations such as planar end surface, chamfered edge and bore hole just can begin at the first surface of box cupling.After these operations were finished, the bore hole cutter head was got back to the Z axis initial point, the chuck automatic turning.The bore hole cutter head is finished second the operations such as planar end surface, chamfered edge and bore hole near processing work.After these operations were finished, the bore hole cutter head was got back to the Z axis initial point, and cutter platform automatic rotation is to car silk cutter station.Then, car silk cutter head approaches box cupling and the car silk of bore hole, until the car silk end-of-job of second of box cupling.If the user has requirement, also can carry out the deburring operation of first surface car silk, but this can reduce output.After second car silk finished, car silk cutter head was got back to the Z axis initial point, the chuck automatic turning.Car silk cutter head is processed the box cupling first surface of bore hole, finishes the car silk.After the car silk finished, the cutter platform was got back to working origin, and main shaft stops, and the rotation of cutter platform turns back to the borer side, prepared the next box cupling of processing.

Manipulator forms (feeding manipulator lifting arm and blanking mechanical hand lifting arm) by two mechanical arms, and two mechanical arms are respectively by hydraulic cylinder control lifting:

When manipulator arrived the lathe top of vertical advanced positions, manipulator was got back to its home position.Material loading end feeding manipulator lifting arm descends and clamps another semi-finished product box cupling by the three-jaw fluid-pressure chuck, and after clipping, the feeding manipulator lifting arm turns back to its lifting position and rises to vertical advanced positions.Then, the feeding manipulator lifting arm advances to the top of lathe, automatically is parked in door top, top, waits for the end of this machine tooling circulation at this.After the machine tooling circulation finishes, the top door is opened, the blanking mechanical hand lifting arm drops to upset oild chuck center line and overlaps with spindle centerline, the blanking mechanical hand lifting arm moves forward and makes the three-jaw fluid-pressure chuck clamp the box cupling finished product that processes, the upset oild chuck unclamps the box cupling finished product, the blanking mechanical hand lifting arm is return after being right after the hoop finished product by the three-jaw fluid-pressure gripper chuck backward.Be used for driving the translation hydraulic cylinder startup of transverse shifting trolley body, the feeding manipulator lifting arm is delivered to assigned address (being that the feeding manipulator lifting arm moves to blanking mechanical hand lifting arm blanking position), simultaneously, the feeding manipulator lifting arm descends, and the blanking mechanical hand lifting arm rises.A new semi-finished product box cupling will be admitted in the upset oild chuck, and then the feeding manipulator lifting arm will turn back to its vertical advanced positions (being that the whole mechanism of manipulator is returned to vertical advanced positions).The top door is closed, second fabrication cycles begins, this moment, manipulator returned by vertically moving dolly, when manipulator integral body turns back to its home position (initial position of lathe tail end direction), two mechanical arms (feeding manipulator lifting arm and blanking mechanical hand lifting arm) are fallen simultaneously.The V-type carriage that receives first finished product box cupling rises, and blanking claw (being the three-jaw fluid-pressure chuck of blanking mechanical hand lifting arm lower end) unclamps and just is positioned at the finished product box cupling of collecting charging basket.Material loading claw (the three-jaw fluid-pressure chuck of feeding manipulator lifting arm lower end) is caught by ready the 3rd box cupling of centralising device.The V-type carriage descends, and the finished product box cupling is admitted to the blanking skewed slot, receives the signal that first finished product box cupling machines with Time Controller.New cycle period begins .... at this moment, it is processed to have four box cuplings in the lathe, and first is just processed, and second is just to be processed at top door place, the 3rd is the material loading position at centralising device, and last is exactly by that of quality inspection.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art are not within breaking away from the technical solutions of the utility model scope, appeal the equivalent embodiment that the technology contents that discloses is made a little change or is modified to equivalent variations when utilizing, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1. pipe joint thread cutting machine is characterized in that: comprise lathe support (1), be arranged at the hydraulic pressure cutter platform (2) of lathe support (1) upper end, the iron that is arranged at lathe support (1) front end is cut transporter (3), lathe support (1) upper end is provided with and vertically moves crossbeam (4), is arranged at the manipulator (5) that vertically moves on the crossbeam (4); Described lathe support (1) tail end one side is provided with two upright supports beams (6), and front end one side is provided with single upright supports beam (6.1); Described crossbeam (4) one ends that vertically move are fixed on two upright supports beams (6) upper end, and the other end is fixed on single upright supports beam (6.1) upper end; Be fixed with centralising device (7) on the described pair of upright supports beam (6); Described pipe joint thread cutting machine is provided be used to the closed lathe shell (8) that covers in lathe main frame outer end.

2. a kind of pipe joint thread cutting machine according to claim 1 is characterized in that: be provided with 45 ° of oblique lathe beds on the described lathe; Be provided with main spindle box (10) on the lathe, and main spindle box (10) main shaft output is provided with upset oild chuck (9); Described hydraulic pressure cutter platform (2) is arranged on 45 ° of oblique lathe beds of lathe.

3. a kind of pipe joint thread cutting machine according to claim 1, it is characterized in that: described manipulator (5) comprising: be installed on and vertically move vertically moving dolly (5.1), be installed on the traversing guide rail (5.2) that vertically moves on the dolly (5.1) on the crossbeam (4); Described traversing guide rail (5.2) is connected with transverse translation trolley body (5.3) by the mode of roller set clamping; Be provided with feeding manipulator lifting arm (5.4) and blanking mechanical hand lifting arm (5.5) on the described transverse translation trolley body (5.3), and be fixed with feeding manipulator hydraulic cylinder (5.6) and the blanking mechanical hand hydraulic cylinder (5.7) that moves up and down for driving feeding manipulator lifting arm (5.4) and blanking mechanical hand lifting arm (5.5) on the transverse translation trolley body (5.3).

4. a kind of pipe joint thread cutting machine according to claim 1, it is characterized in that: described centralising device (7) comprising: lower clamping limb (7.1), Bidirectional-screw (7.2) and upper clamping limb (7.3); Described Bidirectional-screw (7.2) is fixed on the excessive connecting plate (11), and is provided with the gap with excessive connecting plate (11) surface; Described excessive connecting plate (11) is fixed on two upright supports beam (6) inboards; Described lower clamping limb (7.1) and upper clamping limb (7.3) place on the Bidirectional-screw (7.2) by two opposite nut sleeve of rotation direction respectively; Be fixed with the two leads for lower clamping limb (7.1) and upper clamping limb (7.3) guiding on the described fixed connecting plate (11); Be fixed with the hydraulic motor (7.4) that rotates for driving (7.2) two screw mandrels of Bidirectional-screw on the described fixed connecting plate (11); Described lower clamping limb (7.1) upper surface is processed with the V-type groove.

5. a kind of pipe joint thread cutting machine according to claim 1, it is characterized in that: described closed lathe shell (8) top is provided with automatic door, and outer setting has portable guidance panel (12).

6. a kind of pipe joint thread cutting machine according to claim 1, it is characterized in that: described pipe joint thread cutting machine is equipped with Hydraulic Station (13), and namely Hydraulic Station (13) is connected with pipe joint thread cutting machine fluid pressure line.

7. a kind of pipe joint thread cutting machine according to claim 1, it is characterized in that: described pipe joint thread cutting machine is equipped with emulsion system (14), and namely emulsion system (14) is connected with pipe joint thread cutting machine pipeline.