CN220964021U

CN220964021U - Pitch-changing end inserting mechanism

Info

Publication number: CN220964021U
Application number: CN202322624257.1U
Authority: CN
Inventors: 臧建崇; 王俊昌; 李强; 陈满新
Original assignee: Shenzhen Jinghongchang Precision Electronic Co ltd
Current assignee: Shenzhen Jinghongchang Precision Electronic Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2024-05-14
Anticipated expiration: 2033-09-26

Abstract

The application discloses a variable-pitch end inserting mechanism, which belongs to the technical field of automatic equipment and comprises a support, wherein one side of the support is fixedly connected with a material belt conveying mechanism, a material belt positioning mechanism, a workpiece feeding mechanism and a variable-pitch clamping mechanism, and the variable-pitch clamping mechanism comprises a support seat fixedly connected to one side of the support, a cylinder five fixedly connected to one side of the support seat, and a movable seat three fixedly connected with the telescopic end of the cylinder five and slidingly connected to the support. According to the application, the terminals on the material belt are not required to be ordered, the terminals on the material belt can be directly taken through the variable-pitch clamping mechanism, then the distance between the terminals is adjusted through the variable-pitch mechanism, so that the distance between the terminals is consistent with the distance between a plurality of terminal grooves in the workpiece, the terminals are sent into the terminal grooves, then the terminals are pressed into the terminal grooves, and the material inserting process can be shortened and the material inserting efficiency can be improved.

Description

Pitch-changing end inserting mechanism

Technical Field

The application relates to the technical field of automation equipment, in particular to a variable-pitch end inserting mechanism.

Background

When the prior terminal material inserting machine is used, as the spacing between a plurality of terminals connected on the material belt is fixed, and the spacing between terminal grooves in the workpiece is different from the spacing between a plurality of terminals on the material belt, the terminals on the material belt are required to be cut off in advance and ordered, so that the spacing between the terminals is the same as the spacing between the terminal grooves on the workpiece, and then the material inserting action is completed, thus the problem of mismatched spacing can be solved, but the procedure of ordering is added, the manufacturing cost of equipment is increased, and the material inserting efficiency of the equipment is affected.

Disclosure of utility model

The application aims to provide a variable-pitch end inserting mechanism so as to solve the problems that the manufacturing cost of equipment is increased and the material inserting efficiency of the equipment is influenced in the background art.

In order to achieve the above purpose, the present application provides the following technical solutions: the distance-changing end inserting mechanism comprises a support, a material belt conveying mechanism, a material belt positioning mechanism, a workpiece feeding mechanism and a distance-changing clamping mechanism are fixedly connected to one side of the support, the distance-changing clamping mechanism comprises a support seat fixedly connected to one side of the support, a cylinder five fixedly connected to one side of the support seat, a movable seat three fixedly connected to the five telescopic ends of the cylinder and slidingly connected to the support seat, a support plate fixedly connected to one side of the movable seat three, a cylinder six fixedly connected to one side of the support plate, a lifting seat fixedly connected to one side of the support plate and fixedly connected to the six telescopic ends of the cylinder, and a cylinder seven and distance-changing mechanism fixedly connected to one side of the lifting seat and one side of the support plate.

In one embodiment, the distance changing mechanism comprises a first fixed block and a second fixed block which are fixedly connected to one side, away from the supporting plate, of the lifting seat, a movable seat which is fixedly connected with the seventh telescopic end of the air cylinder, a first guide post which is fixedly connected to one side, adjacent to the movable seat, of the fixed block, a second guide post which is fixedly connected to one side, adjacent to the movable seat, of the fixed block, a plurality of first limiting steps which are arranged on the outer surfaces of the first guide post and the second guide post, a plurality of plate bodies which are sleeved on the outer surfaces of the first guide post and the second guide post and are matched with the first limiting steps, and a receiving mechanism which is fixedly connected to the plate bodies.

In one embodiment, a plurality of limiting steps II for limiting the movable travel of the plate body are formed on one side, adjacent to the first guide post, of the lifting seat.

In one embodiment, the receiving mechanism comprises a receiving block fixedly connected to one side of the plate body adjacent to the supporting plate and a receiving groove arranged at one end, deviating from the plate body, of the receiving block.

In one embodiment, the material belt positioning mechanism comprises a fixed seat, a feeding seat, a workpiece conveying mechanism, a material groove, a material belt, a stepping motor, a terminal positioning mechanism, a pressing mechanism, a fluted disc, a blanking frame and a discharging frame, wherein the fixed seat is fixedly connected to one side of the support, the feeding seat and the workpiece conveying mechanism, the material groove is formed in the fixed seat, the material belt is movably arranged in the material groove in a penetrating mode, the stepping motor is fixedly connected to the side, away from the support, of the fixed seat, the fluted disc is fixedly connected with an output shaft of the stepping motor, and the blanking frame is fixedly connected to one side of the support and is positioned on the right side of the feeding seat.

In one embodiment, the material belt is connected with a plurality of terminals, the material belt is provided with holes and grooves with the same number as the terminals, and the outer surface of the fluted disc is provided with toothed keys matched with the holes and grooves.

In one embodiment, the terminal positioning mechanism comprises a first bracket fixedly connected to the fixing seat, a first cylinder fixed to the first bracket, and a first pressing seat fixedly connected to the telescopic end of the first cylinder and slidably connected to the first bracket, and the pressing mechanism comprises a second bracket fixedly connected to the fixing seat, a second cylinder fixed to the second bracket, and a second pressing seat fixedly connected to the telescopic end of the second cylinder and slidably connected to the second bracket.

In one embodiment, the workpiece conveying limiting groove and the workpiece feeding hole communicated with the workpiece conveying limiting groove are formed in the feeding seat, the workpiece conveying mechanism comprises a support three fixedly connected to the support, a cylinder three fixedly connected to the support three, a movable seat I, a movable groove and a rocker, one end of the movable seat I is fixedly connected with the telescopic end of the cylinder three, the other end of the movable seat I is inserted into the workpiece conveying limiting groove, the movable groove is formed in the movable seat I, and the rocker is rotationally connected with the inner wall of the movable groove through a torsion spring.

In one embodiment, the workpiece feeding mechanism comprises a feeding track and a cylinder IV which are fixedly connected to one side of the support, a movable seat II which is fixedly connected with the telescopic end of the cylinder IV and is slidingly connected to the bracket IV, and a feeding insertion block which is fixedly connected to one side, away from the telescopic end of the movable seat II and the telescopic end of the cylinder IV.

Compared with the prior art, the utility model has the beneficial effects that:

According to the application, the terminals on the material belt are not required to be ordered, the terminals on the material belt can be directly taken through the variable-pitch clamping mechanism, then the distance between the terminals is adjusted through the variable-pitch mechanism, so that the distance between the terminals is consistent with the distance between a plurality of terminal grooves in the workpiece, the terminals are sent into the terminal grooves, then the terminals are pressed into the terminal grooves, and the material inserting process can be shortened and the material inserting efficiency can be improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a schematic view of a tape positioning mechanism according to the present application;

FIG. 3 is a schematic view of the structure of the movable trough and rocker of the present application;

FIG. 4 is a schematic view of the structure of the material strip, the terminal and the hole slot of the present application;

FIG. 5 is a schematic view of the workpiece feed mechanism and the variable-pitch clamping mechanism;

FIG. 6 is a schematic diagram of a pitch mechanism according to the present application;

FIG. 7 is a schematic view of the first and second limiting steps of the present application;

FIG. 8 is a schematic view of a plate structure according to the present application;

FIG. 9 is a schematic view of the structure of the material receiving structure of the present application.

In the figure: 1. a support; 2. a material belt conveying mechanism; 3. a material belt positioning mechanism; 31. a fixing seat; 32. a stepping motor; 33. fluted disc; 34. a material belt; 341. a terminal; 342. a hole groove; 35. a terminal positioning mechanism; 351. a first cylinder; 352. the first pressing seat is arranged; 36. a compressing mechanism; 361. a second cylinder; 362. a second pressing seat; 37. a blanking frame; 38. a workpiece conveying mechanism; 381. a third cylinder; 382. a movable seat I; 383. a movable groove; 384. a seesaw; 39. a feeding seat; 391. a workpiece conveying limit groove; 4. a workpiece feeding mechanism; 41. a fourth cylinder; 42. a movable seat II; 43. a feed rail; 44. feeding inserting blocks; 5. a variable-pitch clamping mechanism; 51. a fifth cylinder; 52. a movable seat III; 53. a support plate; 54. a sixth air cylinder; 55. a lifting seat; 56. a cylinder seven; 57. a pitch-changing mechanism; 571. a first fixed block; 572. a movable seat; 573. a first guide post; 574. a plate body; 575. a receiving mechanism; 5751. a receiving block; 5752. a receiving groove; 576. a first limiting step; 577. a limiting step II; 578. a second fixed block; 579. a second guide post; 58. and a supporting seat.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Examples:

Referring to fig. 1-9, the present application provides a technical solution: the variable-pitch end inserting mechanism comprises a support 1, wherein a material belt conveying mechanism 2, a material belt positioning mechanism 3, a workpiece feeding mechanism 4 and a variable-pitch clamping mechanism 5 are fixedly connected to one side of the support 1, the variable-pitch clamping mechanism 5 comprises a support seat 58 fixedly connected to one side of the support 1, a cylinder five 51 fixedly connected to one side of the support seat 58, a movable seat three 52 fixedly connected to the telescopic end of the cylinder five 51 and slidingly connected to the support 1, a support plate 53 fixedly connected to the movable seat three 52 and on the side, deviating from the support 1, a cylinder six 54 fixedly connected to one side of the support plate 53, a lifting seat 55 slidingly connected to one side of the support plate 53 and fixedly connected to the telescopic end of the cylinder six 54, a cylinder seven 56 fixedly connected to the lifting seat 55 and the support plate 53 on the side deviating from, and a variable-pitch mechanism 57.

Through adopting above-mentioned technical scheme, cylinder five 51 can drive movable seat three 52 and to the direction removal of material area positioning mechanism 3, is convenient for get material to terminal 341, and cylinder six 54 can drive lifting seat 55 and rise or descend, is convenient for press the terminal 341 to send into the work piece in, and pitch change mechanism 57 is used for adjusting the interval between a plurality of terminals 341 for the interval is the same with the interval of the terminal groove in the work piece.

Referring to fig. 5-9, in this embodiment, the distance changing mechanism 57 includes a first fixed block 571 and a second fixed block 578 fixedly connected to a side of the lifting seat 55 facing away from the supporting plate 53, a movable seat 572 fixedly connected to a telescopic end of the air cylinder seven 56 on a side adjacent to the first fixed block 571, two first guide posts 573 fixedly connected to a side adjacent to the second fixed block 578 on the movable seat 572, a second guide post 579 fixedly connected to a side adjacent to the second fixed block 578 on the movable seat 572, a plurality of first limiting steps 576 provided on an outer surface of the first guide post 573 and the second guide post 579, a plurality of plates 574 sleeved on an outer surface of the first guide post 573 and the second guide post 579 and matching the first limiting steps 576, and a receiving mechanism 575 fixedly connected to the plates 574. A plurality of limiting steps 577 for limiting the movable travel of the plate 574 are arranged on one side of the lifting seat 55 adjacent to the first guide column 573. The receiving mechanism 575 comprises a receiving block 5751 fixedly connected to one side of the plate body 574 adjacent to the supporting plate 53, and a receiving groove 5752 formed on one end of the receiving block 5751 away from the plate body 574.

By adopting the technical scheme, the air cylinder seven 56 stretches out to push the movable seat 572 to move towards the second fixed block 578, at this time, the two guide posts 573 penetrate out from the left side of the second fixed block 578, the guide post two 579 penetrate out from the right side of the first fixed block 571, the limiting step one 576 on the guide post two 579 and the movable seat 572 can push the plurality of plates 574 to move, so that the spacing between the plurality of plates 574 is reduced and attached together, and as the material receiving block 5751 is fixed on the plates 574, the spacing between the plurality of terminals 341 is reduced when the plurality of plates 574 are attached together, the spacing between the plurality of terminals 341 is reduced, at this time, the spacing between the plurality of terminals 341 is the same as the spacing between the terminals in the workpiece, at this time, the limiting step one 576 on the two guide posts 573 can understand the movement of the plurality of plates 574 when the air cylinder seven 56 resets to drive the movable seat 572 to move towards the direction of the first fixed block 571, the plurality of plates 574 are separated, and the plurality of plates 574 can be limited by the limiting step two plates 577 when the plates 574 are moved together, so that the limiting plates 574 are reset when the plates 577 are moved.

Referring to fig. 2-4, in the present embodiment, the material belt positioning mechanism 3 includes a fixed seat 31 fixedly connected to one side of the support 1, a feeding seat 39, a workpiece conveying mechanism 38, a trough formed inside the fixed seat 31, a material belt 34 movably penetrating through the trough, a stepping motor 32 fixedly connected to a side of the fixed seat 31 away from the support 1, a terminal positioning mechanism 35, a pressing mechanism 36, a fluted disc 33 fixedly connected to an output shaft of the stepping motor 32, and a blanking frame 37 fixedly connected to one side of the support 1 and positioned on the right side of the feeding seat 39. The material belt 34 is connected with a plurality of terminals 341, the material belt 34 is provided with holes 342 with the same number as the terminals 341, and the outer surface of the fluted disc 33 is provided with teeth keys matched with the holes 342.

The terminal positioning mechanism 35 includes a first bracket fixedly connected to the fixing base 31, a first cylinder 351 fixed to the first bracket, a first pressing seat 352 fixedly connected to a telescopic end of the first cylinder 351 and slidably connected to the first bracket, and the pressing mechanism 36 includes a second bracket fixedly connected to the fixing base 31, a second cylinder 361 fixed to the second bracket, and a second pressing seat 362 fixedly connected to a telescopic end of the second cylinder 361 and slidably connected to the second bracket. A workpiece conveying limit groove 391 and a workpiece feeding hole communicated with the workpiece conveying limit groove 391 are formed in the feeding seat 39.

By adopting the technical scheme, the material belt 34 enters the inside of the fixed seat 31, and as the hole groove 342 is matched with the tooth key on the outer surface of the fluted disc 33, the stepping motor 32 works to drive the fluted disc 33 to rotate so as to drive the material belt 34 to move in the inside of the fixed seat 31, and the feeding of the material belt 34 is completed;

referring to fig. 2 and 5, in the present embodiment, the workpiece feeding mechanism 4 includes a feeding rail 43 and a fourth cylinder 41 fixedly connected to one side of the support 1, a second movable seat 42 fixedly connected to the telescopic end of the fourth cylinder 41 and slidingly connected to the fourth bracket, and a feeding insert 44 fixedly connected to the opposite side of the telescopic ends of the second movable seat 42 and the fourth cylinder 41. The workpiece conveying mechanism 38 includes a third bracket fixedly connected to the support 1, a third cylinder 381 fixedly connected to the third bracket, a first movable seat 382 with one end fixedly connected to a telescopic end of the third cylinder 381 and the other end inserted into the workpiece conveying limit slot 391, a movable slot 383 formed in the first movable seat 382, and a rocker 384 rotatably connected to an inner wall of the movable slot 383 through a torsion spring.

Through adopting above-mentioned technical scheme, get into feeding track 43 after a plurality of work pieces are ordered, cylinder four 41 stretches out and can promote movable seat two 42 and pay-off inserted block 44 and remove, the work piece propelling movement of the work piece in with feeding track 43 from the work piece feed inlet that offers on the pay-off seat 39 gets into work piece transport spacing groove 391, cylinder three 381 stretches out and drives movable seat one 382 and remove towards the direction of unloading frame 37, the one end that the rocker 384 was tilted promotes the work piece in the work piece transport spacing groove 391 to the direction of unloading frame 37, make the work piece remove the below of displacement mechanism 57, because rocker 384 adopts torsional spring rotation to connect inside movable groove 383, therefore when cylinder three 381 contracts and drives movable seat one 382 to reset, the one end that the rocker 384 can be pressed into inside movable groove 383 by the work piece in the work piece transport spacing groove 391, knowing that the effort that the rocker 384 produced can make the one end of rocker 384 tilt, reciprocal motion kinetic energy can realize the pay-off to the work piece.

Working principle: when the feeding device is used, the material belt 34 enters the inside of the fixed seat 31, the hole groove 342 is matched with the tooth key on the outer surface of the fluted disc 33, so that the stepping motor 32 works to drive the fluted disc 33 to rotate so as to drive the material belt 34 to move in the fixed seat 31, feeding of the material belt 34 is completed, a plurality of workpieces enter the feeding track 43 after being sequenced, the cylinder IV 41 stretches out to push the movable seat II 42 and the feeding inserting block 44 to move, the workpiece in the feeding track 43 is pushed into the workpiece conveying limit groove 391 from the workpiece feeding opening formed in the feeding seat 39, then the cylinder III stretches out to drive the movable seat I382 to move towards the direction of the lower material frame 37, one end of the rocker 384 pushes the workpiece in the workpiece conveying limit groove 391 towards the direction of the lower material frame 37, so that the workpiece moves to the lower part of the variable distance mechanism 57, and the workpiece are positioned at a set position, and as the spacing of the terminals 341 on the material belt 34 is fixed, when the plurality of terminals 341 move to the lower part of the pressing seat I352, the cylinder IV drives the pressing seat I352 to descend, the plurality of terminals 341 are pushed down from the workpiece feeding seat II, the plurality of terminals 341 are pushed down from the workpiece feeding opening formed in the feeding seat 39, the workpiece conveying limit groove 382, the movable seat III is pushed by the plurality of terminals 341 to the same as the terminals 5751, and the terminals 5751 are also pushed by the plurality of terminals 5751, and the terminals are stretched out of the terminals 5751 along the direction of the same as the air connecting seat 5751, and the air 5, and the terminals 5751 are stretched to the direction of the connecting rod 5751, and the terminals are moved along with the direction of the connecting rod 5751, and the rotating; the description is made in connection with fig. 6: then, the air cylinder seven 56 stretches out to push the movable seat 572 to move towards the second fixed block 578, at this time, the two guide posts 573 penetrate out from the left side of the second fixed block 578, the guide post two 579 penetrate out from the right side of the first fixed block 571, the spacing between the plurality of plate bodies 574 is reduced and the plurality of plate bodies 574 are adhered together, because the material receiving block 5751 is fixed on the plate bodies 574, when the plurality of plate bodies 574 are adhered together, the spacing between the plurality of terminals 341 is also reduced by driving the plurality of terminals 341, at this time, the spacing between the plurality of terminals 341 is the same as the spacing between the plurality of terminals in the workpiece, then the air cylinder six 54 drives the lifting seat 55 to descend, the plurality of terminals 341 on the material receiving block 5751 are pressed into the terminal grooves in the workpiece, at this time, the air cylinder six 54 resets to wait for the next action, at this time, the air cylinder three 381 continues to work to move the workpiece with the terminal 341 is moved below the pressing seat two 362, at this time, the air cylinder two 362 drives the second pressing seat 362 to descend, the material strip 34 in the workpiece to press the completion of the insertion of the terminal 341, the action is completed along with the first movable seat 382, the movement of continuously moves from the lifting seat 382 to the workpiece side to the workpiece 37, and finally falls into the workpiece discharging groove 37, and finally, the material is discharged from the lifting seat 37.

While the fundamental and principal features of the application and advantages of the application have been shown and described, it will be apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a displacement end inserting mechanism, includes support (1), its characterized in that: the automatic feeding device is characterized in that a material belt conveying mechanism (2), a material belt positioning mechanism (3), a workpiece feeding mechanism (4) and a variable-pitch clamping mechanism (5) are fixedly connected to one side of the support (1), the variable-pitch clamping mechanism (5) comprises a supporting seat (58) fixedly connected to one side of the support (1), a five-cylinder (51) fixedly connected to one side of the supporting seat (58), a three-movable seat (52) fixedly connected to the telescopic end of the five-cylinder (51) and slidingly connected to the support (1), a supporting plate (53) fixedly connected to the three-movable seat (52) and one side of the support (1), a six-cylinder (54) fixedly connected to one side of the supporting plate (53), a lifting seat (55) fixedly connected to the telescopic end of the six-cylinder (54), a seven-cylinder (56) fixedly connected to one side of the lifting seat (55) and one side of the supporting plate (53) and a variable-pitch mechanism (57).

2. The variable pitch end inserting mechanism according to claim 1, wherein: the variable-pitch mechanism (57) comprises a first fixed block (571) and a second fixed block (578) which are fixedly connected to one side, away from the supporting plate (53), a movable seat (572) which is fixedly connected with the telescopic end of the air cylinder seven (56), two first guide posts (573) which are fixedly connected to one side, adjacent to the second fixed block (578), of the movable seat (572), a second guide post (579) which is fixedly connected to one side, adjacent to the second fixed block (578), of the movable seat (572), a plurality of first limiting steps (576) which are arranged on the outer surfaces of the first guide post (573) and the second guide post (579), a plurality of plate bodies (574) which are sleeved on the outer surfaces of the first guide post (573) and the second guide post (579) and are matched with the first limiting steps (576), and a material receiving mechanism (575) which is fixedly connected to the plate bodies (579).

3. The variable pitch end inserting mechanism according to claim 2, wherein: a plurality of limiting steps (577) for limiting the movable travel of the plate body (574) are arranged on one side, adjacent to the first guide column (573), of the lifting seat (55).

4. A variable pitch end inserting mechanism according to any one of claims 2 or 3, wherein: the receiving mechanism (575) comprises a receiving block (5751) fixedly connected to one side of the plate body (574) adjacent to the supporting plate (53), and a receiving groove (5752) arranged at one end, deviating from the plate body (574), of the receiving block (5751).

5. The variable pitch end inserting mechanism according to claim 1, wherein: the material belt positioning mechanism (3) comprises a fixed seat (31) fixedly connected to one side of the support (1), a feeding seat (39) and a workpiece conveying mechanism (38), a trough formed in the fixed seat (31), a material belt (34) movably penetrating through the trough, a stepping motor (32) fixedly connected to one side, deviating from the support (1), of the fixed seat (31), a terminal positioning mechanism (35) and a pressing mechanism (36), a fluted disc (33) which is in specified connection with an output shaft of the stepping motor (32), and a blanking frame (37) fixedly connected to one side of the support (1) and positioned on the right side of the feeding seat (39).

6. The variable pitch end inserting mechanism according to claim 5, wherein: the material belt (34) is connected with a plurality of terminals (341), the material belt (34) is provided with holes (342) the number of which is consistent with that of the terminals (341), and the outer surface of the fluted disc (33) is provided with toothed keys matched with the holes (342).

7. The variable pitch end inserting mechanism according to any one of claims 5 or 6, wherein: the terminal positioning mechanism (35) comprises a first bracket fixedly connected to the fixed seat (31), a first cylinder (351) fixed to the first bracket, a first pressing seat (352) fixedly connected with the telescopic end of the first cylinder (351) and slidably connected to the first bracket, and the pressing mechanism (36) comprises a second bracket fixedly connected to the fixed seat (31), a second cylinder (361) fixed to the second bracket, and a second pressing seat (362) fixedly connected with the telescopic end of the second cylinder (361) and slidably connected to the second bracket.

8. The variable pitch end inserting mechanism according to claim 7, wherein: the feeding seat (39) is internally provided with a workpiece conveying limit groove (391) and a workpiece feeding hole communicated with the workpiece conveying limit groove (391), the workpiece conveying mechanism (38) comprises a bracket III fixedly connected to the support (1), a cylinder III (381) fixedly connected to the bracket III, a movable seat I (382) with one end fixedly connected to the telescopic end of the cylinder III (381) and the other end inserted into the workpiece conveying limit groove (391), a movable groove (383) formed in the movable seat I (382), and a rocker (384) rotationally connected with the inner wall of the movable groove (383) through a torsion spring.

9. The variable pitch end inserting mechanism according to any one of claims 1 or 8, wherein: the workpiece feeding mechanism (4) comprises a feeding track (43) and a fourth cylinder (41) which are fixedly connected to one side of the support (1), a second movable seat (42) fixedly connected with the telescopic end of the fourth cylinder (41) and connected to the fourth support in a sliding manner, and a feeding inserting block (44) fixedly connected to one side, deviating from the telescopic end of the second movable seat (42) and the fourth cylinder (41).