CN112886360B

CN112886360B - Hexagonal mould-replacement-free connecting device

Info

Publication number: CN112886360B
Application number: CN202110077584.2A
Authority: CN
Inventors: 汪治才
Original assignee: Xiamen Xinlechuang Electronics Co ltd
Current assignee: Xiamen Xinlechuang Electronics Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2022-07-05
Anticipated expiration: 2041-01-20
Also published as: CN112886360A

Abstract

The utility model relates to a hexagon die change-free crimping device, which relates to the technical field of terminal crimping machines, and the technical scheme mainly comprises a crimping machine body, a feeding mechanism, a transfer conveying mechanism, a clamping and pushing mechanism, a blanking mechanism and a positioning mechanism, wherein an operating platform is installed and fixed on the lower side of the crimping machine body, the feeding mechanism is installed on one side of the operating platform and is used for grabbing and placing a terminal and a wire harness to the transfer conveying mechanism, the clamping and pushing mechanism comprises a first clamping and pushing assembly and a second clamping and pushing assembly, and the first clamping and pushing assembly is used for plugging a connecting end of the wire harness into the terminal; the second presss from both sides and pushes away the subassembly and carry out the crimping on being used for pushing away the work piece that pencil and terminal grafting were accomplished to the crimping head, and transfer conveying mechanism carries the work piece that the grafting was accomplished to the second and presss from both sides and pushes away on the subassembly, and unloading mechanism sets up on the second presss from both sides and pushes away the subassembly and is located the work piece downside and in order to be used for upwards pushing down the work piece that the crimping was accomplished and accomplish the unloading operation. This application has the effect that improves pencil terminal crimping efficiency.

Description

Hexagonal mould-replacement-free connecting device

Technical Field

The application relates to the technical field of terminal crimping machines, in particular to a hexagonal die change-free crimping device.

Background

At present, a connecting terminal is a kind of accessory product for realizing electrical connection, and is industrially classified into the category of connectors. The existing wiring terminal comprises a metal connector and a wiring harness, wherein the wiring harness is inserted into a through hole of the metal connector, and the hexagonal shape of the terminal crimping machine is used for avoiding die-changing and pressing the metal connector to extrude the wiring harness to deform and then clamp the wiring harness.

However, in the terminal crimping process of the conventional hexagonal mold replacement-free crimping machine, a wire harness needs to be manually inserted into a metal connector, then the terminal is placed in the mold replacement-free crimping connector for crimping, and the next terminal crimping work is performed after the terminal is completed, so that the crimping process is slow, the working efficiency is low, and improvement is needed.

Disclosure of Invention

In order to improve terminal crimping efficiency, this application provides a retooling crimping device is exempted from to hexagon.

The application provides a hexagonal exempts from retooling crimping device adopts following technical scheme: a hexagonal die change-free crimping device comprises:

the crimping machine comprises a crimping machine body, a clamping device and a clamping device, wherein the crimping machine body is used for performing extrusion clamping operation on a terminal, and an operation table is arranged on the lower side of the crimping machine body;

the feeding mechanism comprises a manipulator, a first feeding assembly and a second feeding assembly, the first feeding assembly is used for orderly arranging and conveying terminals, the first feeding assembly comprises a vibrating disc and a feeding guide rail arranged at the discharging end of the vibrating disc, the second feeding assembly is used for orderly arranging and conveying wiring harnesses, the second feeding assembly comprises a first conveying assembly and a plurality of baffle plates arranged on the first conveying assembly, and the manipulator is used for grabbing workpieces on the first feeding assembly and the second feeding assembly;

the transfer conveying mechanism comprises a second transmission assembly, a first fixed seat and a second fixed seat, wherein the first fixed seat is arranged on the second transmission assembly and used for fixing terminals, at least two pieces of the second fixed seat are arranged corresponding to the first fixed seats, each second fixed seat is used for supporting each wire harness, and each pair of the first fixed seat and the second fixed seat corresponding to each wire harness are positioned on the same straight line;

the wire harness clamping and pushing mechanism comprises a first clamping and pushing assembly and a second clamping and pushing assembly, the first clamping and pushing assembly is positioned on one side, away from the first fixing seat, of the second fixing seat, the first clamping and pushing assembly comprises a first clamping jaw cylinder and a first pushing source, the first clamping jaw cylinder is used for clamping a wire harness, the first pushing source is used for pushing the first clamping jaw cylinder to slide along the length direction of the wire harness, and the first clamping and pushing assembly is used for inserting the wire harness into a terminal; the second clamping and pushing assembly is arranged at the discharge end of the transfer conveying mechanism, the second clamping and pushing assembly comprises a second clamping jaw cylinder and a second pushing source, the second clamping jaw cylinder is used for clamping a wire harness, the second pushing source is used for pushing the second clamping jaw cylinder to slide along the length direction of the wire harness, and the second clamping and pushing assembly is used for inserting the wire harness and a terminal onto the crimping head for crimping;

and the blanking mechanism is used for ejecting and falling the workpiece on the second clamping and pushing assembly.

By adopting the technical scheme, the automatic crimping operation of the wire harness and the terminal is realized through the crimping machine body, the feeding mechanism, the transfer conveying mechanism, the clamping and pushing mechanism and the blanking mechanism, so that the crimping efficiency of the terminal is improved; the implementation mode is as follows: the terminal on the first feeding assembly and the wire harness on the second feeding assembly are grabbed to the first fixing seat and the second fixing seat of the transfer conveying mechanism through the mechanical arm, the wire harness is clamped and pushed to be inserted into the terminal through the first clamping and pushing assembly, a workpiece which is inserted into the terminal in advance is conveyed to the second clamping and pushing assembly through the transfer conveying mechanism, the workpiece is clamped and clamped through the second clamping and pushing assembly and pushed to a crimping head of the crimping machine body to be subjected to crimping operation, after crimping is finished, the second clamping and pushing assembly pushes the workpiece out through the blanking mechanism after resetting, the second clamping and pushing assembly is used for realizing blanking, and workpiece crimping operation on the next step is carried out.

Preferably, the second transmission assembly comprises a chain wheel, a chain and a servo motor, the chain wheel and the chain are arranged in parallel, an output shaft of the servo motor is provided with two groups of synchronous rotating gears for driving the two groups of chain wheels, connecting plates are arranged between chain segments corresponding to the chains, each first fixing seat and the second fixing seat respectively comprise clamping seats symmetrically arranged, clamping grooves for clamping workpieces are formed in the upper ends of the clamping seats, each clamping groove penetrates through the two ends of the corresponding first fixing seat along the length direction of the wire harness, and the corresponding clamping seats are respectively arranged on the two adjacent connecting plates.

By adopting the technical scheme, install first fixing base and second fixing base through setting up the connecting plate, first fixing base and second fixing base all set up the tight seat of clamp that sets up symmetrically, press from both sides tight seat through two and press from both sides tight fixed work piece, because press from both sides tight seat in the effect with chain vertical fixation, and then when chain drive first fixing base and second fixing base remove to arc track department, two will be in the trend that the separation is opened, until when removing to the horizontal segment, two press from both sides tight seat will change gradually to closing from the trend that the separation is opened and realize the effect of clamping fixed work piece, the manipulator presss from both sides the work piece and gets to be in arc track and horizontal segment turn first fixing base and the second fixing base of department on, it will carry out the clamp to the work piece to change to first fixing base and the second fixing base on the horizontal end and fix.

Preferably, a stop block is further disposed on one side, away from the second fixed seat, of the clamping seat on each first fixed seat.

Through adopting above-mentioned technical scheme, because the pencil is when pegging graft to the terminal in, there is frictional force between pencil and the terminal, will make the position of terminal take place the displacement, consequently, will be provided with the baffle on the one side of keeping away from the second fixing base on first fixing base and carry on spacingly to the position of terminal, also reduce the pencil simultaneously and peg graft the degree of depth to the terminal in.

Preferably, a guide part is arranged on one side of the second fixed seat close to each first fixed seat, and each guide part is outwards opened and arranged in a horn shape.

Through adopting above-mentioned technical scheme, the setting of guide will play the guide effect in inserting to the terminal to the pencil, provides the grafting stability of pencil and terminal.

Preferably, the upper side of the second transmission assembly is provided with a pre-pressing rod arranged along the workpiece conveying direction, the pre-pressing rod is positioned on the upper side of each first fixed seat, and the distance between the lower end of the pre-pressing rod and the upper end of the workpiece on the first fixed seat is gradually reduced along the workpiece running direction.

Through adopting above-mentioned technical scheme, the setting of pre-compaction pole will carry out the pre-compaction operation to the terminal, and the first fixing base that drives through the removal moves to the pre-compaction pole cooperation first fixing base that utilizes the slope to set up realizes carrying out the pre-compaction to the terminal and connects the operation, further improves the stability of being connected of pencil and terminal.

Preferably, a reinforcing plate is further disposed in the chain ring and located below each of the first fixing seats for supporting a chain, and the reinforcing plate is fixed to the operating table.

Through adopting above-mentioned technical scheme, because under the driven characteristic effect of chain sprocket, the middle section position of chain is in unsettled setting for the pre-compaction pole makes the chain take place to warp when pushing down first fixing base, and the pre-compaction that influences pre-compaction operation process connects the effect, consequently will be provided with the reinforcing plate at the chain downside and support the chain, reduces the stable pre-compaction of pre-compaction pole and connect the effect.

Preferably, the lower end face of the pre-pressing rod is provided with a PU plate.

Through adopting above-mentioned technical scheme, utilize the wear-resisting characteristic of PU board, will reduce the wearing and tearing of pre-compression bar.

Preferably, a synchronization board is connected between the first clamping and pushing assembly and the second clamping and pushing assembly, the synchronization board slides on the operation table, the first pushing source and the second pushing source are the same driving source, and the synchronization board is driven by the driving source to slide.

Through adopting above-mentioned technical scheme, through setting up synchronous board, will realize accomplishing when pegging graft the pencil in to the terminal and push away the work piece drive that the subassembly was gone up to the crimping head with the second clamp and carry out the effect of crimping, further improve crimping efficiency, also can reduce the cost of driving source simultaneously.

Preferably, be located still be provided with positioning mechanism on the crimping head of crimping machine body is kept away from one side that the second presss from both sides the subassembly that pushes away, positioning mechanism includes ejector pin, first connecting rod, second connecting rod, punch holder and lower plate, the ejector pin level slides on the operation panel, wherein one end of first connecting rod sets up with the ejector pin is articulated, and the other end sets up with the second connecting rod is articulated, the vertical sliding of second connecting rod is on the operation panel, the lower plate goes up and down to slide in second connecting rod upside, punch holder parallel arrangement is just upside in the lower plate, the second presss from both sides and pushes away the subassembly and will promote the ejector pin and slide when being close to the crimping head.

Through adopting above-mentioned technical scheme, will press from both sides the terminal fixedly through positioning mechanism, further improve the crimping stability of terminal, its embodiment is: when the second presss from both sides and pushes away the subassembly and slide forward, will promote the ejector pin simultaneously and slide, and then will make progress the top under the effect of first connecting rod and second connecting rod and establish the lower plate for the lower plate upwards slides and cooperates the upper plate to carry out the clamp with the link of terminal and closes fixedly.

Preferably, the upper clamping plate is provided with a positioning column, the lower clamping plate is provided with a corresponding positioning groove, and the positioning column can penetrate through a connecting hole of a terminal of the positioning column.

Through adopting above-mentioned technical scheme, the setting of reference column and constant head tank will further improve the stability of being connected between positioning mechanism and the terminal.

In summary, the present application includes at least one of the following beneficial technical effects:

the automatic crimping operation of the wire harness and the terminal is realized through the crimping machine body, the feeding mechanism, the transfer conveying mechanism, the clamping and pushing mechanism and the blanking mechanism, so that the crimping efficiency of the terminal is improved;

through setting up the cooperation of depression bar and stiffener in advance and realizing carrying out the pre-compaction operation to the terminal, further improve the stability of being connected of terminal and pencil.

Drawings

Fig. 1 is a schematic view of the entire structure of a crimping apparatus according to an embodiment of the present application;

fig. 2 is a schematic structural view of a transfer mechanism of the crimping apparatus according to the embodiment of the present application;

FIG. 3 is an enlarged view of part A of FIG. 2;

fig. 4 is a schematic sectional view taken along line a-a in fig. 1.

Reference numerals: 1. a crimper body; 2. a feeding mechanism; 21. a manipulator; 22. a first feeding assembly; 221. vibrating the disc; 222. a feeding guide rail; 23. a second feeding assembly; 231. a first transmission assembly; 232. a baffle plate; 3. a transfer conveying mechanism; 31. a second transmission assembly; 311. a sprocket; 312. a chain; 313. a servo motor; 32. a first fixed seat; 33. a second fixed seat; 4. a clamping and pushing mechanism; 41. a first clamping and pushing assembly; 411. a first jaw cylinder; 412. a first push source; 413. a first sliding seat; 42. a second clamping and pushing assembly; 421. a second jaw cylinder; 422. a second push source; 423. a second sliding seat; 5. a blanking mechanism; 6. a positioning mechanism; 61. a top rod; 62. a first link; 63. a second link; 64. an upper splint; 65. a lower splint; 7. an operation table; 8. a connecting plate; 9. a clamping seat; 10. a clamping groove; 11. a stopper; 12. reserving a seam; 13. a guide member; 14. a pre-compression bar; 15. a reinforcing plate; 16. a PU board; 17. a positioning column; 18. positioning a groove; 19. a synchronization plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a die change crimping device is exempted from to hexagon. Referring to fig. 1 and 2, the crimping device includes a crimping machine body 1, a feeding mechanism 2, a transferring and conveying mechanism 3, a clamping and pushing mechanism 4, a blanking mechanism 5 and a positioning mechanism 6, the crimping machine body 1 adopts a hexagonal mold-changing-free crimping machine, an operation table 7 is installed and fixed on the lower side of the crimping machine body 1, the feeding mechanism 2 is installed on one side of the operation table 7 for grabbing and placing a terminal and a wire harness to the transferring and conveying mechanism 3, wherein the clamping and pushing mechanism 4 includes a first clamping and pushing assembly 41 and a second clamping and pushing assembly 42, the first clamping and pushing assembly 41 is located on one side of the transferring and conveying mechanism 3 where the wire harness is placed, and the first clamping and pushing assembly 41 is used for plugging a connecting end of the wire harness into the terminal; the second presss from both sides and pushes away subassembly 42 and sets up on transfer conveying mechanism 3's discharge end, the second presss from both sides and pushes away subassembly 42 in order to be used for carrying out the crimping with the work piece propelling movement that pencil and terminal grafting were accomplished to the crimping overhead, transfer conveying mechanism 3 carries the work piece that grafting was accomplished to the second presss from both sides and pushes away on subassembly 42, unloading mechanism 5 sets up on the second presss from both sides and pushes away subassembly 42 and is located the work piece downside in order to be used for upwards pushing down the work piece that the crimping was accomplished and accomplish the unloading operation, so will realize the automatic crimping procedure of pencil and terminal, and then improve crimping efficiency.

Referring to fig. 1 and 2, the feeding mechanism 2 includes a manipulator 21, a first feeding assembly 22, and a second feeding assembly 23, wherein the manipulator 21 is located between the first feeding assembly 22 and the second feeding assembly 23. The first feeding assembly 22 comprises a vibrating disc 221 and a feeding guide rail 222 arranged at the discharging end of the vibrating disc 221, the vibrating disc 221 vibrates a plurality of terminals and sequentially discharges the terminals onto the feeding guide rail 222, and then the terminals on the feeding guide rail 222 are grabbed by the manipulator 21; the second feeding assembly 23 comprises a first conveying assembly 231 and a plurality of baffle plates 232, the first conveying assembly 231 is arranged to be of a belt conveying structure, the baffle plates 232 are evenly distributed on the belt of the first conveying assembly 231, a plurality of wire harnesses are placed between two adjacent baffle plates 232 on the belt by a worker, and then the wire harnesses on the belt are grabbed through the manipulator 21.

Referring to fig. 1 and 2, the transfer conveying mechanism 3 includes a second transmission assembly 31, a first fixing seat 32 and a second fixing seat 33, the second transmission assembly 31 includes chain wheels 311, chains 312 and servo motors 313, two sets of the chain wheels 311 and the chains 312 are arranged in parallel, an output shaft of the servo motors 313 is coaxially fixed with driving wheels in the two sets of the chain wheels 311 and the chains 312 to achieve the effect of providing driving power, connecting plates 8 are correspondingly fixed between chain segments corresponding to the two chains 312, and hammers of each connecting plate 8 are connected between the two chains 312 and synchronously run along with the chains 312; the first fixing seats 32 are mounted on the second transmission assembly 31 to support and mount terminals, the second fixing seats 33 are mounted on the second transmission assembly 31 to support and mount wires, at least two second fixing seats 33 are arranged corresponding to the first fixing seats 32, the second fixing seats 33 are arranged in two groups, the two groups of second fixing seats 33 are arranged along the length direction of the wiring harness, and the groups of corresponding first fixing seats 32 and the second fixing seats 33 are located on the same straight line.

Referring to fig. 2 and 3, specifically, each of the first fixing seat 32 and the second fixing seat 33 includes two clamping seats 9 symmetrically disposed, each clamping groove 10 is formed by matching the upper ends of two corresponding clamping seats 9 and is used for clamping a workpiece, each clamping groove 10 penetrates through the two ends of the corresponding first fixing seat 32 and the corresponding second fixing seat 33 along the length direction of the wire, the two corresponding clamping seats 9 are respectively disposed on two adjacent connecting plates 8, so that when the chain 312 drives the first fixing seat 32 and the second fixing seat 33 to move to the arc-shaped track, the two clamping seats 9 will be in a tendency of separating and opening, until moving to the horizontal section, the two clamping seats 9 will gradually convert from the tendency of separating and opening to an effect of closing and clamping and fixing the workpiece, the manipulator 21 clamps the workpiece onto the first fixing seat 32 and the second fixing seat 33 at the turning point of the arc-shaped track and the horizontal section, the first fixing seat 32 and the second fixing seat 33 turned to the horizontal end clamp and fix the workpiece.

Further, referring to fig. 2 and 3, a stop 11 is further disposed on a side of the clamping seat 9 of each first fixing seat 32 away from the second fixing seat 33, the stop 11 is disposed on one corresponding clamping seat 9, and a reserved seam 12 for placing a connection end of the terminal is left between the stop 11 and the other clamping seat 9 corresponding to the first fixing seat 32. All be provided with guide 13 on the one side of the second fixing base 33 that each first fixing base 32 is close to, each guide 13 all opens outwards and is the setting of loudspeaker form, and the setting of guide 13 will be convenient for the grafting operation of pencil and terminal.

Further, referring to fig. 2 and 3, a pre-pressing rod 14 arranged along the workpiece conveying direction is installed right above each first fixing seat 32, the distance between the lower end of the pre-pressing rod 14 and the upper end of the workpiece on the first fixing seat 32 is gradually reduced along the workpiece running direction, and the moving first fixing seat 32 is matched with the pre-pressing rod 14 to pre-press the workpiece. To further ensure the pre-pressing effect, a reinforcing plate 15 is horizontally installed in the ring of the chain 312 and is located at the lower side of the chain 312 for supporting the chain 312, and the pre-pressing rod 14 and the reinforcing plate 15 are installed and fixed on the operation table 7. The PU plate 16 is fixed on the lower end face of the pre-pressing rod 14, friction loss between the pre-pressing rod 14 and a workpiece is reduced by utilizing the wear-resisting property of PU, and the reinforcing plate 15 is also made of PU, so that the friction loss of the reinforcing plate 15 can be reduced.

Referring to fig. 1 and 2, the first clamping and pushing assembly 41 includes a first clamping jaw cylinder 411 for clamping a wire and a first pushing source 412 for pushing the first clamping jaw cylinder 411 to slide along a length direction of the wire, the wire harness is clamped by the first clamping jaw cylinder 411, a first sliding seat 413 for fixing the first clamping jaw cylinder 411 is slidably mounted on the operating platform 7, and then the first sliding seat 413 is pushed by the first pushing source 412 to slide, specifically, the first pushing source 412 is provided as a cylinder.

Referring to fig. 1 and 2, the second clamping and pushing assembly 42 includes a second clamping jaw cylinder 421 for clamping the wire harness and a second pushing source 422 for pushing the second clamping jaw cylinder 421 to slide along the length direction of the wire, the second clamping jaw cylinder 421 is provided with two pieces, clamping jaw ports of the two pieces of second clamping jaw cylinder 421 are arranged in an upward opening manner, a second sliding seat 423 for fixing the two pieces of second clamping jaw cylinder 421 is slidably installed on the operating platform 7, and the second pushing source 422 is installed on the operating platform 7 for driving the second sliding seat 423 to slide. The blanking mechanism 5 is provided as an air cylinder, the air cylinder is mounted on the second sliding seat 423 and located at the lower side of the workpiece, and the workpiece is ejected out of the two second clamping jaw air cylinders 421 by upward ejection.

Further, referring to fig. 1 and 2, in the present embodiment, a synchronization plate 19 is connected between the first clamping and pushing unit 41 and the second clamping and pushing unit 42, the synchronization plate 19 is connected to the first sliding seat 413 and the second sliding seat 423 and slides on the operation table 7, the first pushing source 412 and the second pushing source 422 are the same driving source, the driving source employs a cylinder, and the synchronization plate 19 is driven by the driving source to slide.

Referring to fig. 1 and 4, a positioning mechanism 6 is further installed on a side of the crimping head of the crimping machine body 1 away from the second clamping and pushing assembly 42, the positioning mechanism 6 includes a top rod 61, a first connecting rod 62, a second connecting rod 63, an upper clamping plate 64 and a lower clamping plate 65, the top rod 61 horizontally slides on the operating platform 7, one end of the first connecting rod 62 is hinged with the top rod 61, the other end is hinged with the second connecting rod 63, the second connecting rod 63 vertically slides on the operating platform 7, the lower clamping plate 65 moves up and down and slides on the operating platform 7 and is located above the second connecting rod 63, the upper clamping plate 64 is parallel and arranged above the lower clamping plate 65, the upper clamping plate 64 is installed and fixed on the operating platform 7, the second sliding seat 423 synchronously slides the top rod 61 while approaching the crimping head, the top rod 61 pushes the second connecting rod 63 upward while sliding the lower clamping plate 65 upward and cooperates with the upper clamping plate 64 to clamp the connecting end of the terminal, when the second sliding seat 423 drives the workpiece thereon to move to the designated position, the lower clamping plate 65 and the upper clamping plate 64 just clamp and fix the terminal.

Further, as shown in fig. 1 and 4, since the connecting end of the terminal is provided with a connecting hole, the upper clamping plate 64 is fixed with the positioning column 17, the lower clamping plate 65 is provided with the positioning groove 18 for inserting the corresponding positioning column 17, and the positioning column 17 can pass through the connecting hole of the terminal of the positioning column 17, thereby further improving the connection stability between the positioning mechanism 6 and the terminal.

The implementation principle of the hexagonal die-change-free crimping device in the embodiment of the application is as follows: the terminal on the first feeding component 22 and the wire harness on the second feeding component 23 are grabbed to the first fixing seat 32 and the second fixing seat 33 of the transfer conveying mechanism 3 through the manipulator 21, the wire harness is clamped and pushed to be inserted into the terminal through the first clamping and pushing component 41, a workpiece which is inserted into the terminal in advance is conveyed to the second clamping and pushing component 42 through the transfer conveying mechanism 3, the workpiece is clamped through the second clamping and pushing component 42 and pushed to a crimping head of the crimping machine body 1 to be subjected to crimping operation, after crimping is finished, the second clamping and pushing component 42 pushes the workpiece out of the second clamping and pushing component 42 through the blanking mechanism 5 after resetting to realize blanking, and workpiece crimping operation on the next step is performed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a die change crimping device is exempted from to hexagon which characterized in that includes:

the terminal crimping machine comprises a crimping machine body (1), wherein the crimping machine body (1) is used for performing extrusion clamping operation on a terminal, and an operation table (7) is arranged on the lower side of the crimping machine body (1);

the feeding mechanism (2), the feeding mechanism (2) comprises a manipulator (21), a first feeding component (22) and a second feeding component (23), the first feeding assembly (22) is used for orderly arranging and conveying the terminals, the first feeding assembly (22) comprises a vibration disc (221) and a feeding guide rail (222) arranged on the discharging end of the vibration disc (221), the second feeding assembly (23) is used for orderly arranging and conveying the wire harnesses, the second feeding assembly (23) comprises a first conveying assembly (231) and a plurality of baffle plates (232) arranged on the first conveying assembly (231), the first transmission component (231) is arranged into a belt transmission structure, each baffle (232) is uniformly distributed on the belt of the first transmission component (231), the manipulator (21) is used for grabbing workpieces on the first feeding assembly (22) and the second feeding assembly (23);

the transfer conveying mechanism (3) comprises a second transmission assembly (31), first fixing seats (32) and second fixing seats (33), the first fixing seats (32) are arranged on the second transmission assembly (31) and used for fixing terminals, at least two pieces of the second fixing seats (33) are arranged corresponding to each first fixing seat (32), each second fixing seat (33) is used for supporting each wire harness, and the first fixing seats (32) and the second fixing seats (33) corresponding to each group are located on the same straight line; the second transmission component (31) comprises a chain wheel (311), a chain (312) and a servo motor (313), the chain wheels (311) and the chain (312) are arranged in two groups and are arranged in parallel in a transmission way, the output shaft of the servo motor (313) is coaxially fixed with the driving wheels in the two groups of chain wheels (311) and the chain (312) to realize the effect of providing driving power, so that the two groups of chain wheels (311) rotate synchronously, a connecting plate (8) is arranged between chain sections corresponding to the two groups of chains (312), each first fixed seat (32) and each second fixed seat (33) comprise two clamping seats (9) which are symmetrically arranged, clamping grooves (10) for clamping workpieces are formed corresponding to the upper ends of the two clamping seats (9), each clamping groove (10) penetrates through the two ends of the corresponding first fixed seat (32) along the length direction of the wire harness, the clamping seats (9) corresponding to the two pieces are respectively arranged on the two adjacent connecting plates (8); when the chain (312) drives the first fixing seat (32) and the second fixing seat (33) to move to the arc-shaped track, the two clamping seats (9) are in a separating and opening trend until the two clamping seats move to the horizontal section, and the two clamping seats (9) gradually convert the separating and opening trend to be closed and clamp and fix the workpieces;

the clamping and pushing mechanism (4), the clamping and pushing mechanism (4) comprises a first clamping and pushing assembly (41) and a second clamping and pushing assembly (42), the first clamping and pushing assembly (41) is located on one side, away from the first fixing seat (32), of the second fixing seat (33), the first clamping and pushing assembly (41) comprises a first clamping jaw cylinder (411) used for clamping a wire harness and a first pushing source (412) used for pushing the first clamping jaw cylinder (411) to slide along the length direction of the wire harness, and the first clamping and pushing assembly (41) is used for inserting the wire harness into a terminal; the second clamping and pushing assembly (42) is arranged at the discharging end of the transfer conveying mechanism (3), the second clamping and pushing assembly (42) comprises a second clamping jaw cylinder (421) used for clamping the wiring harness and a second pushing source (422) used for pushing the second clamping jaw cylinder (421) to slide along the length direction of the wiring harness, and the second clamping and pushing assembly (42) is used for inserting the wiring harness and the terminal to the crimping head for crimping;

and the blanking mechanism (5) is used for ejecting and falling the workpiece on the second clamping and pushing assembly (42).

2. The hexagonal die-change-free crimping device according to claim 1, characterized in that a stop (11) is further arranged on one side, away from the second fixed seat (33), of the clamping seat (9) on each first fixed seat (32).

3. The hexagonal die-change-free crimping device as claimed in claim 1, wherein a guide (13) is arranged on one side of each first fixed seat (32) close to the second fixed seat (33), and each guide (13) is flared outwards.

4. The hexagonal die-change-free crimping device according to claim 1, characterized in that a pre-pressing rod (14) arranged along a workpiece conveying direction is arranged on the upper side of the second transmission assembly (31), the pre-pressing rod (14) is positioned right above each first fixed seat (32), and the distance between the lower end of the pre-pressing rod (14) and the upper end of the workpiece on the first fixed seat (32) is gradually reduced along the workpiece running direction.

5. The hexagonal die-change-free crimping device according to claim 4, characterized in that a reinforcing plate (15) is further arranged in a chain ring formed by the chains (312) and is located below each first fixing seat (32) for supporting the chains (312), and the reinforcing plate (15) is fixed on the operating table (7).

6. The hexagonal die-change-free crimping device according to claim 4, characterized in that a PU plate (16) is arranged on the lower end face of the pre-pressing rod (14).

7. The hexagonal die-change-free crimping device according to claim 1, wherein a synchronizing plate (19) is connected between the first clamping and pushing assembly (41) and the second clamping and pushing assembly (42), the synchronizing plate (19) slides on the operating table (7), the first pushing source (412) and the second pushing source (422) are set as a same driving source, and the synchronizing plate (19) is driven to slide by the driving source.

8. The hexagonal die-change-free crimping device according to claim 1, wherein a positioning mechanism (6) is further arranged on one side of the crimping head of the crimping machine body (1) far away from the second clamping and pushing assembly (42), the positioning mechanism (6) comprises a mandril (61), a first connecting rod (62), a second connecting rod (63), an upper clamping plate (64) and a lower clamping plate (65), the top rod (61) horizontally slides on the operating platform (7), one end of the first connecting rod (62) is hinged with the top rod (61), the other end of the connecting rod is hinged with a second connecting rod (63), the second connecting rod (63) vertically slides on the operating platform (7), the lower clamping plate (65) is lifted and glided on the upper side of the second connecting rod (63), the upper clamping plate (64) is arranged on the right upper side of the lower clamping plate (65) in parallel, the second clamping and pushing assembly (42) is close to the crimping head and simultaneously pushes the push top rod (61) to slide.

9. The die change free hexagonal crimping device according to claim 8, characterized in that the upper clamping plate (64) is provided with positioning posts (17), the lower clamping plate (65) is provided with corresponding positioning slots (18), and the positioning posts (17) can pass through the connecting holes of the terminals of the positioning slots (18).