CN116372031B - Eccentric pipe expanding equipment - Google Patents
Eccentric pipe expanding equipment Download PDFInfo
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- CN116372031B CN116372031B CN202310659161.0A CN202310659161A CN116372031B CN 116372031 B CN116372031 B CN 116372031B CN 202310659161 A CN202310659161 A CN 202310659161A CN 116372031 B CN116372031 B CN 116372031B
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- expanding
- sliding
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- 238000000034 method Methods 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 27
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000000670 limiting effect Effects 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 15
- 210000000078 claw Anatomy 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 11
- 238000003825 pressing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Automatic Assembly (AREA)
Abstract
The application discloses eccentric pipe expanding equipment belongs to pipe expanding equipment technical field, includes: a support part; the clamping part is used for clamping the pipe; at least two sets of tube expansion assemblies, the tube expansion assemblies comprising: the sliding seat is suitable for moving along the direction parallel to the axis of the pipe, and a sliding groove is formed in the sliding seat; the expanding seat is suitable for sliding along the direction perpendicular to the axis of the pipe; the pipe expanding head is arranged on the pipe expanding head, and the diameter of the pipe expanding head is gradually increased according to the pipe expanding sequence. In the implementation process of the technical scheme of the invention, the pipe is clamped by the clamping part, at least two groups of pipe expanding assemblies are also arranged, each pipe expanding assembly comprises a pipe expanding seat which can slide along the direction perpendicular to the axis of the pipe, the pipe expanding seat is provided with a pipe expanding head, the diameters of the pipe expanding heads are gradually increased according to the pipe expanding sequence, and in the sliding process of the pipe expanding seat, the pipe expanding heads sequentially perform pipe expanding operation according to the pipe expanding sequence.
Description
Technical Field
The application relates to the technical field of pipe expanding equipment, in particular to eccentric pipe expanding equipment.
Background
The pipe expander is a tool for expanding the diameter of a pipe, is widely applied to the fields of industrial production and construction, and is used for fixing the pipe to be expanded and extending a pipe expander head with the diameter larger than that of the pipe into the pipe in the use process, and expanding the partial or full diameter of the pipe in the process of driving the pipe expander head to move along the axial direction of the pipe;
however, in actual production activities, since the pipe expansion is a processing method for directly deforming the pipe, when the diameter of the pipe expansion head is larger, the pipe expansion is directly performed, which leads to the increase of stress on the inner wall of the pipe and even damage of the pipe, so that a plurality of pipe expansion heads with different specifications are required to be arranged, and the pipe expansion is performed on the pipe in sequence from smaller diameter to larger diameter.
It is necessary to provide an eccentric pipe expanding apparatus that can improve the production efficiency to solve the above-mentioned problems.
It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and, therefore, it may contain information that does not constitute prior art.
Disclosure of Invention
Based on the above problems existing in the prior art, the technical problems to be solved in the application are as follows: the eccentric pipe expanding equipment achieves the effect of improving pipe expanding efficiency.
The technical scheme adopted for solving the technical problems is as follows: an eccentric pipe expanding apparatus comprising:
a support part;
the clamping part is arranged on the supporting part and is used for clamping the pipe;
at least two sets of pipe expanding assemblies, the pipe expanding assembly sets up on supporting part, the pipe expanding assembly is used for carrying out the pipe expanding operation to the tubular product of clamp, and this pipe expanding assembly includes:
the sliding seat is suitable for moving along the direction parallel to the axis of the pipe, and a sliding groove is formed in one side, close to the pipe, of the sliding seat;
the pipe expanding seat is arranged in the sliding groove and is suitable for sliding in the sliding groove along the direction perpendicular to the axis of the pipe;
the pipe expanding head is arranged on the pipe expanding seat, and the diameter of the pipe expanding head is gradually increased according to the pipe expanding sequence;
the adjusting mechanism is arranged on the supporting part and is used for changing the position of the expanding tube seat;
wherein: the multiple groups of pipe expanding seats are suitable for sliding in the sliding grooves under the drive of the adjusting mechanism, so that the pipe expanding heads sequentially perform multi-station pipe expanding operation according to the pipe expanding sequence, and perform single-station repeated pipe expanding operation under the drive of the adjusting mechanism.
When the technical scheme of the invention is implemented, the pipe is clamped by the clamping part, at least two groups of pipe expanding assemblies are also arranged, each pipe expanding assembly comprises a pipe expanding seat which can slide along the direction perpendicular to the axis of the pipe, the pipe expanding seat is provided with a pipe expanding head, the diameters of the pipe expanding heads are gradually increased according to the pipe expanding sequence, the pipe expanding heads are sequentially subjected to pipe expanding operation according to the pipe expanding sequence in the sliding process of the pipe expanding seat, and the pipe expanding seat is provided with an adjusting mechanism, so that the pipe expanding operation is carried out on the pipe at multiple stations and the pipe expanding operation is repeated at a single station.
Further, the adjustment mechanism includes:
a driving part arranged on the supporting part and provided with an output end;
the adjusting plate is connected with the output end of the driving part and is suitable for moving along the vertical direction under the driving of the driving part, and the adjusting plate is provided with a first inclined plane;
the second inclined plane is arranged on the sliding seat and is matched with the first inclined plane;
the first inclined surface is suitable for contacting with the second inclined surface in the process of downward movement of the adjusting plate, and along with the continuous downward movement of the adjusting plate, the first inclined surface generates pressure on the second inclined surface so as to drive the sliding seat to move towards the direction of the pipe, and the position of the sliding seat is changed;
further, the adjustment mechanism also includes a linkage assembly, the linkage assembly including:
the adjusting pin is arranged on the expanding tube seat and is provided with an elastic connector;
the straight groove is arranged on the first inclined plane, one end of the straight groove is provided with a first opening, and the other end of the straight groove is provided with a limiting part;
the chute is arranged on the first inclined plane, the chute is obliquely arranged, one end of the chute is connected with the straight groove, the other end of the chute is provided with a second opening, and the depth of the chute is larger than that of the straight groove;
wherein: when the adjusting plate moves downwards to be in contact with a second inclined surface on the sliding seat, the adjusting pin enters the straight groove from the first opening, and the elastic connector is compressed by extrusion of the bottom surface of the straight groove;
along with the continuous downward movement of the adjusting plate, the adjusting pin reaches the limiting part of the straight groove, the elastic connector stretches out to enable the moving path of the adjusting pin to enter the chute, when the adjusting plate moves upwards, the chute generates lateral pressure on the elastic connector to enable the adjusting pin to move laterally so as to drive the pipe expanding seat to move laterally, and after the movement of the adjusting plate is completed, the elastic connector slides out from the second opening to wait for the next adjustment, so that the linkage adjustment of the sliding seat and the pipe expanding seat is realized;
when the pipe expanding head does not completely enter the pipe, the adjusting pin only moves in the straight groove, but cannot enter the chute.
Further, the elastic connector includes:
a baffle plate arranged on the adjusting pin;
the sleeve body is provided with an inner cavity, and is provided with a sliding hole which is suitable for accommodating the adjusting pin;
the third spring is arranged in the inner cavity and is used for providing elasticity for the sleeve body, so that the sleeve body stretches and contracts.
Further, adjustment mechanism still includes reset assembly, reset assembly includes:
a first spring having one end connected to the slide and the other end connected to the support, the first spring being compressed when the slide slides toward the pipe to generate an elastic force for restoring the slide;
the second spring is arranged in the sliding groove, one end of the second spring is connected with the pipe expanding seat, the other end of the second spring is connected with the supporting part, and the second spring is in a compressed state when the pipe expanding seat slides to the position of the pipe so as to generate elastic force for resetting the pipe expanding seat.
Further, be provided with the location portion on the slide, the location portion is used for right the expander seat is fixed a position, the location portion includes:
the positioning groove is arranged at a position on the sliding seat, which is suitable for expanding the pipe;
the movable seat is provided with a guide pin, the guide pin extends into the pipe expanding seat, and the movable seat is connected with the pipe expanding seat through the guide pin;
the fourth spring is sleeved on the guide pin and is used for providing elastic force to the movable seat;
wherein: in the sliding process of the pipe expanding seat, the movable seat is pressed by the sliding seat, so that the fourth spring is in a compressed state; when the pipe expanding seat slides to the positioning groove, the pressure force born by the movable seat is reduced, the fourth spring stretches out, and the movable seat is pressed into the positioning groove, so that the pipe expanding seat is positioned.
Further, a guide surface is arranged on the positioning groove, the guide surface is obliquely arranged, and when the movable seat moves to the positioning groove, the guide surface can press and fix the movable seat.
Further, still be provided with one-way spacing subassembly on the slide, one-way spacing subassembly is used for right the pipe expanding seat carries out one-way spacing, one-way spacing subassembly includes:
the toothed plate is fixedly arranged on the expanding tube seat and provided with saw teeth;
the limiting claw is rotationally connected with the sliding seat, and is suitable for being meshed with the saw teeth to carry out unidirectional limiting on the toothed plate.
Further, the clamping portion includes a clamp assembly, the clamp assembly including:
the output end of the first cylinder is fixedly connected with an upper die, the bottom of the upper die is provided with a first groove matched with the pipe, and the first cylinder is suitable for driving the upper die to vertically reciprocate;
the lower die is fixedly arranged at a position on the supporting part corresponding to the upper die;
the mold core is fixedly arranged on the lower mold, and a second groove matched with the pipe is formed in the mold core;
wherein: under the drive of the first cylinder, the upper die moves towards the direction of the lower die, when the upper die is in contact with the die core, the first groove and the second groove form a complete groove to accommodate the pipe, and when the upper die and the lower die are clamped, clamping of the pipe is achieved.
The beneficial effects of this application are: according to the eccentric pipe expanding equipment, the clamping part is arranged to clamp the pipe, at least two groups of pipe expanding assemblies are further arranged, each pipe expanding assembly comprises the pipe expanding seat which can slide along the direction perpendicular to the axis of the pipe, the pipe expanding seat is provided with the pipe expanding head, the diameters of the pipe expanding heads are gradually increased according to the pipe expanding sequence, and in the sliding process of the pipe expanding seat, the pipe expanding heads sequentially perform pipe expanding operation according to the pipe expanding sequence; the device is provided with a linkage assembly, realizes linkage adjustment of the sliding seat and the expanding seat through the linkage assembly, and is provided with a unidirectional limiting assembly, and unidirectional limiting is carried out on the expanding seat through the unidirectional limiting assembly.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is an overall schematic diagram of an eccentric pipe expanding apparatus of the present application;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is an enlarged schematic view of area A of FIG. 2;
FIG. 4 is an enlarged view of a portion of the carriage and platen of FIG. 3;
FIG. 5 is a schematic diagram of the connection of the slider to the adjustment plate;
FIG. 6 is an enlarged schematic view of area B of FIG. 5;
FIG. 7 is an exploded view of the elastic connector;
FIG. 8 is an exploded view of the interior of the carriage;
FIG. 9 is an enlarged schematic view of the positioning portion;
FIG. 10 is an enlarged schematic view of region C of FIG. 9;
FIG. 11 is a schematic illustration of the connection of the limit pawl to the toothed plate;
wherein, each reference sign in the figure:
1. a frame; 2. a mold assembly; 3. a tube expanding assembly; 21. a first cylinder; 22. a second cylinder; 23. a pressing plate; 231. an adjusting plate; 232. a straight groove; 233. a chute; 234. a first dwell point; 235. a second dwell point; 24. a bottom plate; 25. an upper die; 26. a lower die; 261. a mold core; 31. a fixing seat; 32. a first guide shaft; 33. a first spring; 34. a slide; 35. a second guide shaft; 36. a second spring; 37. a tube expansion seat; 38. a tube expansion head; 39. an adjustment pin; 341. a chute; 342. a through groove; 343. a positioning groove; 344. a guide surface; 345. a mounting groove; 346. a limiting shaft; 347. a limit claw; 348. a first inclined surface; 349. a second inclined surface; 371. a fixing seat; 372. a movable seat; 373. a spring hole; 374. a guide pin; 375. a fourth spring; 376. a toothed plate; 377. saw teeth; 391. a baffle; 392. a third spring; 393. a sleeve body; 394. a slide hole; 395. an inner cavity.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
First, this embodiment has explained and has carried out the expander to tubular product through setting up the expander head of a plurality of different specifications to a plurality of expander heads arrange in order, carry out progressive expander to tubular product according to the order from little to big through the expander head of different specifications, prevent that the instantaneous atress of tubular product inner wall from being too big, lead to tubular product to produce the damage, and is specific:
as shown in fig. 1 to 11, the present application provides an eccentric pipe expanding device, which includes a frame 1, a bottom plate 24 is disposed on the frame 1, and the frame 1 and the bottom plate 24 form a supporting portion of the pipe expanding device;
the machine frame 1 is provided with a die assembly 2, the die assembly 2 is used as a clamping part of the pipe expanding equipment, and the clamping part is used for clamping a pipe to be expanded so as to enable the pipe to be in a fixed state in the pipe expanding process;
the die assembly 2 comprises a first air cylinder 21, wherein the first air cylinder 21 is fixed on the frame 1, and the output end of the first air cylinder 21 is fixedly connected with an upper die 25, so that the upper die 25 can reciprocate along the vertical direction under the driving of the first air cylinder 21;
at the same time, the bottom of the upper die 25 is provided with a first groove (not shown) which is matched with the pipe, a lower die 26 is fixedly arranged on the frame 1 at a position corresponding to the upper die 25, a die core 261 is fixedly arranged on the lower die 26, and a second groove (not shown) which is matched with the pipe is also arranged on the die core 261, so that the upper die 25 is suitable for being close to or far away from the lower die 26 under the driving of the first air cylinder 21, and when the upper die 25 is contacted with the die core 261, the first groove and the second groove form a finished groove which is convenient for accommodating the pipe, and clamping the pipe is realized when the upper die 25 and the lower die 26 are clamped.
Simultaneously still be provided with the pipe expanding subassembly 3 on the frame 1, this pipe expanding subassembly 3 slides and sets up in frame 1 to the direction of sliding of this pipe expanding subassembly 3 is the axis direction of tubular product, is fixed the back with tubular product through the clamping part, and the pipe expanding subassembly 3 moves towards the axis direction of tubular product, accomplishes the tip reaming operation to tubular product, specifically:
the pipe expanding assembly 3 comprises a plurality of groups of fixed seats 31 fixedly mounted on the frame 1, a first guide shaft 32 is fixedly mounted on the plurality of groups of fixed seats 31, the length direction of the first guide shaft 32 is parallel to the axis direction of the pipe, and a sliding seat 34 is slidably arranged on the first guide shaft 32, so that the sliding seat 34 is suitable for sliding on the first guide shaft 32;
simultaneously, the slide 34 is provided with a pipe expanding seat 37, and the pipe expanding seat 37 is fixedly provided with a pipe expanding head 38 towards the direction of the pipe, so that when the slide 34 slides towards the direction of the pipe along the first guide shaft 32, the pipe expanding head 38 can extend into the pipe, and the pipe can be expanded because the diameter of the pipe expanding head 38 is larger than that of the pipe;
after the pipe expansion is completed, the sliding seat 34 returns to the original position, the pipe expansion head 38 is separated from the pipe, and the next pipe expansion operation is performed after the pipe is replaced;
in order to realize multiple pipe expansion operations on the pipe, as shown in fig. 2-3, a sliding groove 341 is arranged on the sliding seat 34, a second guide shaft 35 is arranged in the sliding groove 341, the length direction of the second guide shaft 35 is arranged along the direction perpendicular to the axis of the pipe, meanwhile, a pipe expansion seat 37 is arranged on the second guide shaft 35 in a sliding manner, the pipe expansion head 38 comprises a first pipe expansion head 381, a second pipe expansion head 382 and a third pipe expansion head 383, wherein the diameter of the first pipe expansion head 381 is smaller than that of the second pipe expansion head 382, the diameter of the second pipe expansion head 382 is smaller than that of the third pipe expansion head 383, and the first pipe expansion head 381, the second pipe expansion head 383 and the third pipe expansion head 382 are sequentially arranged on the sliding seat 34 according to the order of the diameters;
in order to switch the pipe expander 38, the pipe expander 38 with different specifications performs pipe expanding operation, the pipe expander 37 is connected with a cylinder, and the cylinder is used for driving the pipe expander 37 to move on the second guide shaft 35, so that the different pipe expanders 38 are aligned with the pipe, and the pipe expander is performed to achieve the effect of switching the pipe expander 38.
In the second embodiment, in embodiment 1, the sliding seat 34 and the pipe expanding seat 37 are respectively provided with different adjusting mechanisms, so that the sliding seat 34 can move on the first guiding shaft 32 and drive the pipe expanding seat 37 to expand pipes; simultaneously, the cylinder drives the expansion pipe seat 37 to move on the second guide shaft 35 to achieve the effect of switching the expansion pipe seat 38, and the adjusting mechanisms are mutually independent and need to be controlled respectively in the implementation process, which is time-consuming and labor-consuming, so in the embodiment, the sliding seat 34 and the expansion pipe seat 37 are controlled simultaneously through the linkage assembly, and the adjustment mechanism is specific:
in order to drive the slide 34 to slide on the first guide shaft 32, the frame 1 is provided with a second cylinder 22, which second cylinder 22 can be a drive in this embodiment;
the output end of the second cylinder 22 is connected with an adjusting plate 231, the adjusting plate 231 is suitable for moving up and down under the drive of the second cylinder 22, a first inclined plane 348 is arranged on the adjusting plate 231, a second inclined plane 349 is correspondingly arranged on the sliding seat 34, during the downward movement of the adjusting plate 231, the first inclined plane 348 contacts with the second inclined plane 349, and along with the further downward movement of the adjusting plate 231, the first inclined plane 348 can generate a pressing force on the second inclined plane 349 so as to enable the sliding seat 34 to move towards the direction of the pipe;
as shown in fig. 1-2, a first spring 33 is sleeved on a first guide shaft 32 between a fixed seat 31 and a sliding seat 34, one end of the first spring 33 is contacted with the fixed seat 31, and the other end is contacted with the sliding seat 34;
it will be appreciated that, during pipe expanding operation, the second cylinder 22 drives the adjusting plate 231 to move downwards, at this time, the second inclined plane 349 will move downwards synchronously, the first inclined plane 348 on the sliding seat 34 will be driven to slide towards the fixed seat 31 under the contact with the second inclined plane 349, the first spring 33 will be compressed, and after the pipe expanding operation is completed, the first inclined plane 348 will move upwards along with the second cylinder 22 and the adjusting plate 231, meanwhile, the sliding seat 34 will always receive the elastic force generated by the first spring 33, the elastic force will drive the sliding seat 34 to slide away from the fixed seat 31, after the first inclined plane 348 moves upwards, the sliding seat 34 will move away from the fixed seat 31 under the elastic force of the first spring 33, and the contact between the first inclined plane 348 and the second inclined plane 349 will always be kept, so that the sliding seat 34 and the adjusting plate 231 will return to the original position to wait for the next pipe expanding, and the first spring 33 forms a reset assembly;
in order to increase the driving force of the adjusting plate 231, the number of the second cylinders 22 is two, the input and output ends of the two groups of second cylinders 22 are connected with the pressing plate 23, the adjusting plate 231 is arranged on the pressing plate 23, and the two groups of cylinders simultaneously drive the adjusting plate 231 to move so as to increase the driving force of the adjusting plate 231 to the sliding seat 34.
In order to drive the expansion pipe seat 37 to slide along the second guide shaft 35 to achieve the effect of switching the expansion pipe seat 38, the adjusting mechanism is also provided with a linkage assembly, as shown in fig. 4, the expansion pipe seat 37 is provided with an adjusting pin 39, the adjusting pin 39 is arranged in a vertical direction, the sliding seat 34 is provided with a through groove 342, the length direction of the through groove 342 is arranged along a direction perpendicular to the axis of the pipe, the through groove 342 is suitable for accommodating the adjusting pin 39, so that the adjusting pin 39 is suitable for moving in the through groove 342, and further the expansion pipe seat 37 is driven to move, so that the expansion pipe seat 38 arranged on the expansion pipe seat 37 changes positions;
as shown in fig. 5-6, one end of the adjusting pin 39 protrudes out of the through groove 342, and the adjusting plate 231 is provided with a straight groove 232, one end of the straight groove 232 is provided with a first opening, the other end of the straight groove 232 is provided with a first standing point 234, the first standing point 234 is used as a limiting part of the straight groove 232, when the adjusting plate 231 is driven to move downwards by the second cylinder 22, the protruding position of the adjusting pin 39 enters the straight groove 232 from the opening and slides in the straight groove 232, and in the process, the sliding seat 34 continuously moves towards the direction of the pipe and drives the pipe expanding head 38 to expand the pipe; when the protruding position of the adjusting pin 39 reaches the first standing point 234 of the straight groove 232, the adjusting pin 39 is limited by the first standing point 234, the sliding seat 34 stops moving, and the pipe expanding head 38 is positioned at the pipe expanding position of the pipe;
as shown in fig. 6, in order to adjust the position of the expansion pipe seat 37 at the same time, the adjusting plate 231 is further provided with a chute 233, one end of the chute 233 is connected with the straight groove 232, and the connection part of the chute 233 and the straight groove 232 is at a certain distance from the first residence point 234, the other end of the chute 233 is provided with a second residence point 235, the second residence point 235 is provided with a second opening, the depths of the chute 233 and the first residence point 234 are both larger than the depth of the straight groove 232, when the protruding position of the adjusting pin 39 reaches the first residence point 234, the adjusting plate 231 cannot move downwards due to the limit of the first residence point 234, so that the slide seat 34 is in a fixed state, namely, the first expansion pipe is completed;
the protruding position of the adjusting pin 39 is provided with an elastic connector which is in a compressed state when being positioned in the straight groove 232, and when the adjusting pin 39 is positioned in the first standing point 234, the elastic connector stretches out and enters into the chute 233 because the depth of the chute 233 is larger than that of the straight groove 232;
as shown in fig. 6-7, a baffle 391 is disposed on the adjusting pin 39, the baffle 391 limits the elastic connector to prevent the elastic connector from falling off, the elastic connector includes a sleeve 393, the sleeve 393 has an inner cavity 395, the sleeve 393 has a sliding hole 394, the sliding hole 394 is suitable for sliding connection with the outer wall of the adjusting pin 39, a third spring 392 is disposed in the inner cavity 395, one end of the third spring 392 contacts the baffle 391, and the other end contacts the top of the sleeve 393;
it is understood that when the elastic connector is located in the straight slot 232, the third spring 392 is compressed, and when the elastic connector enters the first standing point 234, the sleeve 393 is separated from the straight slot 232 due to the depth of the first standing point 234 being greater than the depth of the straight slot 232, and the third spring 392 is compressed, so that the sleeve 393 moves upwards and enters the first standing point 234 due to the elastic force generated by the compressed third spring 392;
after the first pipe expansion is completed, the second cylinder 22 retracts to drive the adjusting plate 231 to move upwards, the sliding seat 34 slides towards the direction opposite to the direction of the pipe under the action of the first spring 33, meanwhile, the position of the adjusting pin 39 in the straight groove 232 starts to move downwards, when the adjusting pin 39 moves downwards to the joint of the chute 233 and the straight groove 232, the pipe is separated from the pipe, the adjusting pin 39 enters the chute 233, and as the adjusting plate 231 moves upwards further, the chute 233 generates a transverse pressing force on the adjusting pin 39 to enable the adjusting pin 39 to transversely shift, and further drive the pipe expanding seat 37 to slide towards the direction of the first pipe expanding seat 381 along the second guide shaft 35 to enable the next pipe expanding seat 38 to be aligned with the axis of the pipe;
after the adjusting plate 231 moves up to the initial position, the sliding seat 34 returns to the original position, at this time, the adjusting pin 39 slides out from the second standing point 235 of the chute 233, and the next adjusting pin 39 slides to the opening of the straight slot 232, and the above steps are repeated, so that in the process of moving up the adjusting plate 231, the pipe expanding operation of switching different pipe expanding heads 38 can be realized;
the second spring 36 is sleeved on the second guide shaft 35 between the pipe expanding seat 37 and the sliding seat 34 in the direction close to the first pipe expanding seat 381, the second spring 36 is compressed in the moving process of the pipe expanding seat 37, after the third pipe expanding seat 383 completes pipe expanding, the compression amount of the second spring 36 is maximum, the generated elastic force is also maximum, after the third pipe expanding seat 383 completes pipe expanding operation, the elastic force generated by compression of the second spring 36 drives the pipe expanding seat 37 to slide along the second guide shaft 35 in the direction of the third pipe expanding seat 383, and after the second spring 36 is recovered, the pipe expanding seat 37 returns to the initial position to wait for the next pipe expanding.
It should be noted that, in the actual pipe expanding operation, the situation that the single pipe expander 38 does not fully enter the pipe for pipe expanding is likely to occur, so that the actual pipe expanding depth of the pipe does not reach the actual requirement, and after the pipe expander 38 with a larger diameter is replaced for next pipe expanding, the pressure of the inner wall of the pipe on the pipe expander 38 is increased, and the pipe expanding effect is affected;
based on the above-mentioned problems, as shown in fig. 6, during each movement of the pipe expander 38 toward the pipe, the adjusting pin 39 slides from the first opening of the straight groove 232, and when the pipe expander 38 does not fully expand the pipe, i.e. the pipe expander 38 does not fully extend into the pipe, the adjusting pin 39 stays in the straight groove 232 and cannot be connected to the first residence point 234 and cannot enter the chute 233, in this case, the pipe expander seat 37 does not move, so that the pipe expander 38 cannot be switched to the next pipe expander 38, but the pipe expander 38 continues to expand based on the current pipe expander 38, until the current pipe expander 38 fully enters the pipe and expands the pipe, the adjusting pin 39 enters the first residence point 234, and after the pipe expander 38 leaves the pipe expander 233, the adjusting pin 39 enters the chute 233, and the above-mentioned steps of switching the pipe expander 38 are repeated;
when the pipe is expanded in the above manner, whether the pipe expansion head 38 needs to be switched can be judged according to the actual pipe expansion depth of the pipe expansion head 38 on the pipe, when the pipe expansion head 38 completes the pipe expansion operation on the pipe, the pipe expansion head 38 can completely enter the pipe, at the moment, the adjusting pin 39 is positioned at the first residence point 234 and enters the chute 233 in the returning process of the pipe expansion head 38, and the pipe expansion head 37 is moved by the pressure of the chute 233, so that the effect of switching the pipe expansion head 38 is realized;
when the pipe expander 38 does not completely enter the pipe, the pipe is not completely expanded, and at this time, the adjusting pin 39 is located in the straight groove 232 and cannot reach the first residence point 234, so that the pipe expander 37 cannot enter the chute 233 to move so as to achieve the effect of switching the pipe expander 38, and in the process of returning the pipe expander 38, the adjusting pin 39 is always located in the straight groove 232, so that single-station multiple pipe expanding operation is performed on the pipe until the current pipe expander 38 completely enters the pipe, and after the pipe expanding operation is completed, the adjusting pin 39 can reach the first residence point 234, so that the process of switching the pipe expander 38 is realized, the quality of the pipe expander operation is improved, and the yield is increased.
When carrying out the pipe expanding operation to tubular product, need remove the pipe expanding seat 37 to the position that is fit for carrying out the pipe expanding operation to tubular product, if the skew appears in the position of pipe expanding seat 37, can lead to pipe expanding head 38 to not stretch into tubular product, influences pipe expanding effect and pipe expanding efficiency, consequently need carry out the location to pipe expanding seat 37 in this embodiment, and is specific:
as shown in fig. 8-9, in order to position the pipe expanding seat 37, the pipe expanding seat is moved to a position suitable for pipe expanding operation of the pipe, the sliding seat 34 is provided with a positioning part, the positioning part comprises a fixed seat 371, the fixed seat 371 is fixedly connected with the pipe expanding seat 37, one side of the fixed seat 371, which is close to the sliding seat 34, is provided with a movable seat 372, the movable seat 372 is provided with a guide pin 374, the fixed seat 371 is provided with a spring hole 373, the spring hole 373 is suitable for accommodating the guide pin 374, the guide pin 374 is sleeved with a fourth spring 375, the movable seat 372 is jointed with the sliding seat 34 under the elastic force of the fourth spring 375, and the fourth spring 375 is in a compressed state during jointing;
a positioning groove 343 is arranged in the sliding groove 341, the positioning groove 343 is arranged in the axial direction of the pipe, the positioning groove 343 is provided with a guide surface 344, the guide surface 344 is matched with the movable seat 372, when the pipe expanding seat 37 moves to the position of the positioning groove 343, the fourth spring 375 stretches out, so that the movable seat 372 is attached to the guide surface 344, the position of the pipe expanding seat 37 is prevented from being deviated, the pipe expanding seat 38 and the pipe cannot be normally expanded, and the displacement is caused.
Through setting up the constant head tank 343 in spout 341 inside, when expanding pipe seat 37 removes the operation region, movable seat 372 receives the elasticity effect of fourth spring 375 and the guide surface 344 of constant head tank 343 is fixed, prevents that expanding pipe seat 37 from appearing shifting at the in-process that removes, can't make expanding pipe head 38 and tubular product accurately align, influences the expanding pipe effect.
In the moving process of the pipe expanding seat 37, after one pipe expanding operation is completed, the pipe expanding seat 37 needs to be reset through the reset part, and in the process of switching the pipe expanding head 38, the pipe expanding seat 37 needs to be limited in a one-way manner, so that when the pipe expanding head 38 does not complete switching, the pipe expanding seat 37 is reset, the pipe expanding efficiency is affected, and the moving process is specific:
as shown in fig. 10-11, in order to perform unidirectional limiting on the pipe expanding seat 37, a sliding seat 34 is provided with a unidirectional limiting component, the unidirectional limiting component comprises a toothed plate 376, the toothed plate 376 is arranged on a fixed seat 371, the toothed plate 376 is fixed on the upper surface of the fixed seat 371 through bolts, the toothed plate 376 is provided with a plurality of saw teeth 377, a mounting groove 345 is arranged in the sliding seat 34, a limiting shaft 346 is arranged in the mounting groove 345, the limiting shaft 346 is in bearing connection with the sliding seat 34, the limiting shaft 346 is provided with a limiting claw 347, and the limiting claw 347 is suitable for being matched with the toothed plate 376 to perform unidirectional limiting on the pipe expanding seat 37;
the limiting claw 347 has a rotating part and an engaging part, wherein the rotating part is positioned in the mounting groove 345, the length of the engaging part is longer than the distance from the saw tooth 377 to the rotation center of the limiting shaft 346, when the pipe expanding seat 37 moves, the limiting claw 347 rotates and is engaged with the saw tooth 377 in the rotating process, and the toothed plate 376 can move along the tooth back direction of the saw tooth 377 due to the fixed direction of the saw tooth 377, and the limiting claw 347 is always engaged with the saw tooth 377 in the moving process, so that unidirectional limiting is realized; when the last serration 377 on the toothed plate 376 is separated from the limit jaw 347, the toothed plate 376 loses limit, the elastic force generated by the second spring 36 drives the stent seat 37 to move reversely, and drives the toothed plate 376 to move reversely until the second spring 36 is restored, the toothed plate 376 can return to the original position, and the limit jaw 347 can be jacked up by one end of the toothed plate 376 and can not be meshed with the serration 377 in the reverse movement process, so that the limit jaw 347 rotates to the initial position after the toothed plate 376 moves to the original position, and is continuously meshed with the serration 377 in the next movement process of the toothed plate 376.
By arranging the toothed plate 376 on the fixed seat 371, arranging the saw teeth 377 which are unidirectionally arranged on the toothed plate 376, and rotating the limiting claw 347 in the sliding seat 34, the limiting claw 347 is meshed with the saw teeth 377 in the process of moving the pipe expanding seat 37 and switching the pipe expanding head 38, so that unidirectional limiting of the pipe expanding seat 37 is realized; and in the process of returning the pipe expanding seat 37, the limiting claw 347 rotates to enable the limiting claw 347 to be separated from the saw teeth 377, and after the pipe expanding seat 37 is restored to the original position, the limiting claw is continuously meshed with the saw teeth 377 to carry out next limiting, so that the unidirectional limiting effect of limiting when the pipe expanding seat 37 moves to the pipe position and not limiting when the pipe expanding seat 37 returns is achieved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An eccentric pipe expanding device is characterized in that: comprising the following steps:
a support part;
the clamping part is arranged on the supporting part and is used for clamping the pipe;
at least two sets of pipe expanding assemblies (3), pipe expanding assembly (3) set up on supporting part, pipe expanding assembly (3) are used for carrying out the pipe expanding operation to the tubular product of clamp, and this pipe expanding assembly (3) include:
the sliding seat (34), the sliding seat (34) is suitable for moving along the direction parallel to the axis of the pipe, and a sliding groove (341) is formed in one side, close to the pipe, of the sliding seat (34);
a tube expansion seat (37), wherein the tube expansion seat (37) is arranged in the sliding groove (341), and the tube expansion seat (37) is suitable for sliding in the sliding groove (341) along the direction perpendicular to the axis of the tube;
a tube expansion head (38), wherein the tube expansion head (38) is arranged on the tube expansion head (37), and the diameter of the tube expansion head (38) is gradually increased according to the tube expansion sequence;
wherein: the pipe expanding seat (37) is suitable for sliding in the sliding groove (341) so that the pipe expanding head (38) sequentially performs pipe expanding operation according to the pipe expanding sequence;
the support portion is provided with an adjusting mechanism for changing the position of the pipe expanding assembly (3), the adjusting mechanism comprises:
a driving part arranged on the supporting part and provided with an output end;
an adjusting plate (231), the adjusting plate (231) being connected with the output end of the driving part, the adjusting plate (231) being adapted to move in a vertical direction under the driving of the driving part, the adjusting plate (231) having a first inclined surface;
a second inclined surface arranged on the sliding seat (34), and the second inclined surface is matched with the first inclined surface;
wherein the first inclined surface is suitable for contacting with a second inclined surface in the process of downward movement of the adjusting plate, and along with continuous downward movement of the adjusting plate (231), the first inclined surface generates pressure on the second inclined surface so as to drive the sliding seat (34) to move towards the direction of the pipe, and further change the position of the sliding seat (34);
the adjustment mechanism also includes a linkage structure, the linkage structure including:
an adjusting pin (39), wherein the adjusting pin (39) is arranged on the pipe expanding seat (37), and the adjusting pin (39) is provided with an elastic connector;
the straight groove (232), the straight groove (232) is arranged on the first inclined plane, one end of the straight groove (232) is a first opening, and the other end of the straight groove (232) is a limiting part;
the chute (233) is arranged on the first inclined plane, the chute (233) is obliquely arranged, one end of the chute (233) is connected with the straight chute (232), the other end of the chute (233) is provided with a second opening, and the depth of the chute (233) is larger than that of the straight chute (232);
wherein: when the adjusting plate (231) moves downwards to be in contact with a second inclined surface on the sliding seat (34), the adjusting pin (39) enters the straight groove (232) from the first opening, and the elastic connector is compressed by being extruded by the bottom surface of the straight groove (232);
along with the continuous downward movement of the adjusting plate (231), the adjusting pin (39) reaches the limiting part of the straight groove (232), the elastic connector stretches out to enable the moving path of the adjusting pin (39) to enter the chute (233), when the adjusting plate (231) moves upwards, the chute (233) generates lateral pressure on the elastic connector, so that the adjusting pin (39) moves laterally, the expanding seat (37) is driven to move laterally, and after the adjusting plate (231) moves, the elastic connector slides out from the second opening to wait for the next adjustment, and linkage adjustment of the sliding seat (34) and the expanding seat (37) is achieved.
2. An eccentric pipe expanding apparatus as claimed in claim 1, wherein: the elastic connector includes:
a baffle plate (391), wherein the baffle plate (391) is arranged on the adjusting pin (39);
a sleeve (393), the sleeve (393) having an inner cavity (395), the sleeve (393) having a slide hole (394) thereon, the slide hole (394) being adapted to receive the adjustment pin (39);
and the third spring (392) is arranged in the inner cavity (395), and the third spring (392) is used for providing elasticity for the sleeve body (393) so that the sleeve body (393) can stretch.
3. An eccentric pipe expanding apparatus as claimed in claim 1, wherein: the adjustment mechanism still includes reset assembly, reset assembly includes:
a first spring (33), one end of the first spring (33) is connected with the sliding seat (34), the other end of the first spring (33) is connected with the supporting part, and the first spring (33) is in a compressed state when the sliding seat (34) slides towards a pipe so as to generate elastic force to the sliding seat (34) to enable the sliding seat (34) to return;
the second spring (36), second spring (36) set up in spout (341), the one end of second spring (36) with expand tube seat (37) is connected, the other end of second spring (36) with supporting part is connected, second spring (36) are in compression state when expanding tube seat (37) slide to the position of tubular product, in order to produce to expand the elasticity of tube seat (37), make expand tube seat (37) reset.
4. An eccentric pipe expanding apparatus as claimed in claim 1, wherein: the slide (34) is provided with a positioning part, the positioning part is used for positioning the pipe expanding seat (37), and the positioning part comprises:
a positioning groove (343), wherein the positioning groove (343) is arranged at a position on the sliding seat (34) which is suitable for expanding the pipe;
the movable seat (372), the movable seat (372) is provided with a guide pin (374), the guide pin (374) extends into the pipe expanding seat (37), and the movable seat (372) is connected with the pipe expanding seat (37) through the guide pin (374);
a fourth spring (375), wherein the fourth spring (375) is sleeved on the guide pin (374), and the fourth spring (375) is used for providing elastic force to the movable seat (372);
wherein: during the sliding process of the pipe expanding seat (37), the movable seat (372) is pressed by the sliding seat (34) so that the fourth spring (375) is in a compressed state; when the pipe expanding seat (37) slides to the positioning groove (343), the pressure force born by the movable seat (372) is reduced, the fourth spring (375) stretches out, and the movable seat (372) is pressed into the positioning groove (343), so that the pipe expanding seat (37) is positioned.
5. An eccentric pipe expanding apparatus as claimed in claim 4, wherein: the positioning groove (343) is provided with a guide surface (344), the guide surface (344) is obliquely arranged, and when the movable seat (372) moves to the positioning groove (343), the guide surface (344) can press and fix the movable seat (372).
6. An eccentric pipe expanding apparatus as claimed in claim 1, wherein: still be provided with one-way spacing subassembly on slide (34), one-way spacing subassembly is used for right expand pipe seat (37) is one-way spacing, one-way spacing subassembly includes:
a toothed plate (376), wherein the toothed plate (376) is fixedly arranged on the pipe expanding seat (37), and sawteeth (377) are arranged on the toothed plate (376);
and the limiting claw (347) is rotationally connected with the sliding seat (34), and the limiting claw (347) is suitable for being meshed with the saw teeth (377) to carry out unidirectional limiting on the toothed plate (376).
7. An eccentric pipe expanding apparatus as claimed in claim 1, wherein: the clamping part comprises a die assembly (2), and the die assembly (2) comprises:
the output end of the first air cylinder (21) is fixedly connected with an upper die (25), a first groove matched with the pipe is formed in the bottom of the upper die (25), and the first air cylinder (21) is suitable for driving the upper die (25) to vertically reciprocate;
a lower die (26), wherein the lower die (26) is fixedly arranged on the supporting part at a position corresponding to the upper die (25);
the mold core (261) is fixedly arranged on the lower mold (26), and a second groove matched with the pipe is formed in the mold core (261);
wherein: under the drive of the first air cylinder (21), the upper die (25) moves towards the lower die (26), when the upper die (25) is in contact with the die core (261), the first groove and the second groove form a complete groove to contain a pipe, and when the upper die (25) and the lower die (26) are clamped, clamping of the pipe is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310659161.0A CN116372031B (en) | 2023-06-06 | 2023-06-06 | Eccentric pipe expanding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310659161.0A CN116372031B (en) | 2023-06-06 | 2023-06-06 | Eccentric pipe expanding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116372031A CN116372031A (en) | 2023-07-04 |
| CN116372031B true CN116372031B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310659161.0A Active CN116372031B (en) | 2023-06-06 | 2023-06-06 | Eccentric pipe expanding equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204052658U (en) * | 2014-08-08 | 2014-12-31 | 浙江龙泉鑫宇汽车空调有限公司 | A kind of expander head for the processing of air-conditioning end socket of pipe fitting staged expander |
| TWM521500U (en) * | 2016-01-21 | 2016-05-11 | Janky Technology Co Ltd | Expansion machine |
| CN207479402U (en) * | 2017-11-23 | 2018-06-12 | 诸暨市纵横冷暖配件有限公司 | A kind of clamping device of pipe expander |
| CN114789223A (en) * | 2022-06-01 | 2022-07-26 | 海宁红狮宝盛科技有限公司 | Pipe end pipe expanding forming device |
| CN217451840U (en) * | 2022-03-15 | 2022-09-20 | 江苏乾杜建筑工程有限公司 | Pipe expander head for air conditioner pipe fitting end stepped pipe expanding processing |
-
2023
- 2023-06-06 CN CN202310659161.0A patent/CN116372031B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204052658U (en) * | 2014-08-08 | 2014-12-31 | 浙江龙泉鑫宇汽车空调有限公司 | A kind of expander head for the processing of air-conditioning end socket of pipe fitting staged expander |
| TWM521500U (en) * | 2016-01-21 | 2016-05-11 | Janky Technology Co Ltd | Expansion machine |
| CN207479402U (en) * | 2017-11-23 | 2018-06-12 | 诸暨市纵横冷暖配件有限公司 | A kind of clamping device of pipe expander |
| CN217451840U (en) * | 2022-03-15 | 2022-09-20 | 江苏乾杜建筑工程有限公司 | Pipe expander head for air conditioner pipe fitting end stepped pipe expanding processing |
| CN114789223A (en) * | 2022-06-01 | 2022-07-26 | 海宁红狮宝盛科技有限公司 | Pipe end pipe expanding forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116372031A (en) | 2023-07-04 |
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