Pole piece assembling equipment

Abstract

The utility model discloses pole piece assembling equipment, which is used for assembling pole pieces to positive and negative pole parts of a battery, and comprises a working table, a feeding device, an assembling mechanism and a positioning mechanism are arranged on the working table, the feeding device comprises a plurality of stock bins which are arranged at intervals along a first direction, and each stock bin is provided with a containing cavity for storing the pole pieces; the assembling mechanism comprises a carrying seat and a plurality of mechanical arms, the carrying seat is movably arranged on the workbench, the mechanical arms are movably arranged on the carrying seat in the first direction, the mechanical arms are arranged at intervals in the first direction, the lower portions of the mechanical arms are provided with adsorption working heads used for adsorbing the pole pieces, and the adsorption working heads are used for adsorbing the pole pieces. The adsorption working head is rotationally arranged around a rotating center line extending in the vertical direction; the positioning mechanism comprises a plurality of positioning grooves used for positioning the pole pieces, the multiple positioning grooves are formed in the first direction at intervals according to the preset intervals, and the assembling precision of the assembling equipment is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pole piece assembly equipment. BACKGROUND

[0002] In prior art, in the production line of part battery, pole piece is assembled to the positive and negative pole of battery first, the positioning of both is completed, then welding or pasting is carried out in next process, so as to fix pole piece in positive and negative pole. Part of equipment processes battery pack, and the battery pack includes multiple positive and negative poles, in order to improve efficiency, usually a plurality of pole pieces are grabbed by mechanical arm at one time, and the assembly of multiple pole pieces is carried out synchronously, since the spacing between each feeding bin and the spacing between each positive and negative pole on battery pack are not the same, after multiple pole pieces are grabbed by mechanical arm, distance adjustment is needed once, so that the spacing of multiple pole pieces corresponds to the spacing between each positive and negative pole on battery pack, and then assembly can be carried out. Usually, the control system calculates how to adjust the spacing according to the position distribution of multiple feeding bins and the position distribution of each positive and negative pole on battery pack. However, in actual operation, since there is a gap between pole piece and the side wall of feeding bin, the spacing between multiple pole pieces taken out from feeding bin is not completely the same as the spacing between feeding bins, after distance adjustment is carried out according to the above calculation structure, the spacing of pole piece is also not completely consistent with the spacing of each positive and negative pole on battery pack, so that accurate assembly cannot be carried out. SUMMARY

[0003] The utility model aims at providing a kind of pole piece assembly equipment.

[0004] To achieve the above purpose, the utility model adopts the technical scheme of: a kind of pole piece assembly equipment, for assembling pole piece to the positive and negative pole of battery, the pole piece assembly equipment includes workbench, and the workbench is equipped with:

[0005] Feeding device, including multiple bins spaced apart along a first direction, the bin has a storage cavity for storing the pole piece;

[0006] Assembly mechanism, including carrying seat and mechanical arm, the carrying seat is movably arranged on the workbench, the mechanical arm is movably arranged on the carrying seat along the first direction, the mechanical arm includes multiple, and the lower part of the mechanical arm is equipped with suction work head for adsorbing the pole piece, and the suction work head is movably arranged around the rotation center line of vertical direction;

[0007] Positioning mechanism, including multiple positioning grooves for positioning the pole piece, multiple positioning grooves are spaced apart according to preset spacing along the first direction.

[0008] In some embodiments, the feeding device comprises a jacking mechanism located at one side of the hopper along a second direction perpendicular to the first direction, the jacking mechanism comprising a jacking member and a driving assembly for driving the jacking member to move up and down; the hopper is movably arranged along the second direction, the hopper has a jacking channel extending along the up-down direction, the jacking channel is located at the side of the hopper facing the jacking mechanism, and the jacking channel is in communication with the accommodating cavity; the hopper has a feeding position away from the jacking mechanism along the second direction and a supply position close to the jacking mechanism, and when the hopper is at the supply position, the jacking member can extend into the accommodating cavity from the jacking channel.

[0009] In some embodiments, the lower part of the hopper is provided with a support seat, the upper part of the support seat has a support plane for supporting the pole piece, the support seat further has a slot extending downward from the support plane, the slot is in communication with the accommodating cavity, and the lower part of the jacking channel is in communication with the slot; the feeding device has a first state, a second state and a third state, in the first state, the hopper is at the feeding position; in the second state, the hopper is at the supply position, and the jacking member is inserted into the slot; in the third state, the hopper is at the supply position, and the jacking member moves upward into the accommodating cavity.

[0010] In some embodiments, the feeding device comprises a pressing plate, the pressing plate has a limiting surface facing downward, and when the support seat is at the supply position, the limiting surface abuts against the upper part of the support seat.

[0011] In some embodiments, the hopper comprises a plurality of positioning columns extending along the up-down direction, the positioning columns are fixedly arranged at the upper part of the support seat, and the positioning columns surround to form the accommodating cavity; the gap between two adjacent positioning columns constitutes the jacking channel.

[0012] In some embodiments, in the second state, the upper surface of the jacking member is lower than the support plane.

[0013] In some embodiments, the pole piece assembly equipment further comprises:

[0014] A lifting plate movably arranged at the upper part of the workbench, one of the lifting plate and the workbench is provided with a guide column extending along the up-down direction, and the other is provided with a guide hole, the guide column is slidingly inserted into the guide hole;

[0015] A driving wheel rotatably arranged at the lower part of the lifting plate about a first rotation center line extending horizontally;

[0016] A driving block is movably arranged along a horizontal extending driving direction, the driving direction is perpendicular to the extending direction of the first rotation center line, an upper portion of the driving block is provided with a driving surface extending obliquely from bottom to top along the driving direction, the driving block is supported below the driving wheel, and the driving wheel is in abutment with the driving surface.

[0017] In some embodiments, the pole piece assembly device further comprises:

[0018] A conveying member is configured to convey the battery along a conveying direction;

[0019] An upper feeding track is configured to extend along the conveying direction, and two upper feeding tracks are arranged in parallel, and the lifting plate is located between the two upper feeding tracks;

[0020] A stopping mechanism comprises a mounting seat, a stopping working head, and an elastic member, the mounting seat is movably arranged up and down, a lower portion of the stopping working head is rotatably connected to the mounting seat about a second rotation center line extending horizontally, the extending direction of the second rotation center line is perpendicular to the conveying direction, an upper portion of the stopping working head is provided with a roller, and the elastic member is arranged between the stopping working head and the mounting seat, and the elastic member is configured to provide a required force to prevent the stopping working head from approaching the mounting seat.

[0021] In some embodiments, the pole piece assembly device is provided with an assembly station, the upper feeding device is provided with four, two upper feeding devices are arranged on each side of the assembly station along a second direction, the second direction is perpendicular to the first direction, two upper feeding devices are arranged at intervals along the first direction on each side of the assembly station along the second direction, the carrying seat is movably arranged along the first direction and the second direction, and one positioning mechanism is arranged between each upper feeding device and the assembly station along the second direction.

[0022] In some embodiments, a detection station is arranged between two upper feeding devices on each side of the assembly station along the second direction, the pole piece assembly device further comprises a single / double piece detection mechanism and an angle detection mechanism, the single / double piece detection mechanism is arranged on one side of the detection station, and the single / double piece detection mechanism is configured to detect the number of pole pieces adsorbed by the adsorption working head; the angle detection mechanism is arranged below the detection station, and the angle detection mechanism is configured to detect the angle of the pole pieces adsorbed by the adsorption working head.

[0023] In some embodiments, the pole piece assembly device is further provided with a waste bin, and the waste bin is arranged adjacent to the positioning mechanism along the first direction.

[0024] In some embodiments, the assembly mechanism further includes a lifting seat, which is movable up and down on the robotic arm, and the adsorption working head is rotatably disposed at the lower part of the lifting seat about the rotation center line.

[0025] In some embodiments, the plurality of bins of each feeding device are arranged at intervals along the first direction according to the preset spacing.

[0026] In some embodiments, the positioning groove is provided with a positioning protrusion; and / or, the positioning groove is provided with a positioning ridge.

[0027] In some embodiments, the positioning mechanism is provided in multiple ways, including a first positioning mechanism and a second positioning mechanism. The first positioning mechanism includes a first positioning groove, and the second positioning mechanism includes a second positioning groove. The first positioning groove and the second positioning groove are arranged in a horizontally inverted manner.

[0028] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The electrode assembly equipment of this utility model is equipped with a positioning mechanism. After the material is taken from the feeding hopper, before the pitch change operation, the multiple electrodes picked up by the assembly mechanism need to be placed in multiple positioning slots for positioning. On the one hand, this ensures that the multiple electrodes are distributed according to a preset spacing. On the other hand, the controller can calculate how to adjust the spacing based on the position distribution of the positioning slots and the position distribution of the positive and negative electrodes, and perform pitch change processing on the electrodes based on the calculation results. At the same time, the angle of the electrodes can be adjusted by rotating the adsorption working head. Since the position distribution of the electrodes is the same as the position distribution of the positioning slots after positioning, the electrodes can correspond to the positions of the positive and negative electrodes after adjustment using this calculation result, thereby achieving accurate assembly. Attached Figure Description

[0029] Appendix Figure 1 This is a schematic diagram of an electrode assembly device according to a specific embodiment of the present invention;

[0030] Appendix Figure 2 For the appendix Figure 1 Enlarged view of point A in the middle;

[0031] Appendix Figure 3 For the appendix Figure 1 A schematic diagram of part of the structure;

[0032] Appendix Figure 4 For the appendix Figure 3 Enlarged view of point B in the middle;

[0033] Appendix Figure 5 This is a schematic diagram of the feeding device in this embodiment with the support base in the loading position;

[0034] Figure 1 is a schematic view of the upper feeding device of the present embodiment in a loading mode; Figure 6 Figure 1 is a schematic view of the upper feeding device of the present embodiment in a loading mode;

[0035] Figure 7 Figure 1 is a schematic view of the upper feeding device of the present embodiment in a loading mode;

[0036] Figure 8 Figure 7 Figure 1 is a schematic view of the upper feeding device of the present embodiment in a loading mode;

[0037] Figure 9 Figure 3 Figure 1 is a schematic view of the upper feeding device of the present embodiment in a loading mode;

[0038] Figure 10 Figure 9 Figure 1 is a schematic view of the upper feeding device of the present embodiment in a loading mode;

[0039] Figure 11 Figure 9 Figure 1 is a schematic view of the upper feeding device of the present embodiment in a loading mode;

[0040] 10, pole piece; 20, battery pack; 100, workbench; 200, assembly station; 300, detection station; 1, upper feeding device; 11, hopper; 111, accommodating cavity; 112, loading port; 113, jacking channel; 114, support seat; 115, insertion slot; 116, positioning column; 12, jacking mechanism; 121, jacking piece; 13, pressing plate; 2, assembly mechanism; 21, carrying seat; 22, mechanical arm; 23, suction working head; 24, lifting seat; 25, transmission frame; 26, transmission guide rail; 27, rotary motor; 3, positioning mechanism; 31, positioning groove; 41, lifting plate; 42, driving wheel; 43, driving block; 431, driving surface; 44, guide column; 45, guide rail; 51, upper feeding track; 52, stopping mechanism; 521, mounting seat; 522, stopping working head; 523, roller; 61, single / double piece detection mechanism; 62, angle detection mechanism; 7, waste hopper. DETAILED DESCRIPTION

[0041] The technical solutions of the present application will be described in detail below with reference to the drawings and specific embodiments, so that the advantages and features of the present application are easier for those skilled in the art to understand. Obviously, the embodiments described in the present application are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0042] Reference is made to Figure 1 ​​​​​​​​​The polar piece assembly device shown is used for assembling polar pieces 10 to the positive and negative electrode parts of a battery, and comprises a workbench 100, which is provided with a feeding device 1, an assembly mechanism 2 and a positioning mechanism 3. The feeding device 1 comprises a plurality of hoppers 11 arranged at intervals along a first direction, and each hopper 11 has a containing cavity 111 for storing polar pieces 10. The assembly mechanism 2 comprises a carrying seat 21 and a plurality of mechanical arms 22, the carrying seat 21 is movably arranged on the workbench 100, and each mechanical arm 22 is arranged on the carrying seat 21 and comprises a plurality of mechanical arms 22 arranged at intervals along the first direction, each mechanical arm 22 is movably arranged along the first direction so that the interval between adjacent two mechanical arms 22 can be adjusted, and the lower part of each mechanical arm 22 is provided with a suction working head 23 for suction of polar pieces 10. The positioning mechanism 3 comprises a plurality of positioning grooves 31 arranged at intervals along the first direction at a preset interval.

[0043] When the polar piece assembly device works, the assembly mechanism 2 first takes polar pieces 10 from the feeding device 1, and before the assembly mechanism 2 assembles the suctioned polar pieces 10 to the positive and negative electrode parts of the battery, the assembly mechanism 2 first carries the polar pieces 10 to the positioning mechanism 3, and realizes positioning of the polar pieces 10 by inserting the polar pieces 10 into the positioning grooves 31 correspondingly. In the process of positioning the polar pieces 10, each mechanical arm 22 can adjust the polar pieces 10 by moving along the first direction, so that all the polar pieces 10 are accurately inserted into the positioning grooves 31. After the positioning treatment of the positioning mechanism 3, the polar pieces 10 are accurately distributed at intervals along the first direction at a preset interval like the positioning grooves 31, and at this time the assembly mechanism 2 only needs to move each mechanical arm 22 along the first direction according to the set program to increase or decrease the interval between each polar piece 10, so that the interval between each polar piece 10 is consistent with the set interval between each positive and negative electrode part, thereby accurately assembling the polar pieces 10 to the positive and negative electrode parts.

[0044] In this embodiment, the plurality of hoppers 11 are also arranged at intervals along the first direction at a preset interval, i.e. the position distribution of each hopper 11 along the first direction is consistent with the position distribution of each positioning groove 31 along the first direction, and only fine adjustment of the polar pieces 10 at the positioning mechanism 3 is needed to eliminate the error generated in the process of taking, so that the positioning operation of the polar pieces 10 can be easily completed.

[0045] In this embodiment, the positive and negative electrode part assembly device assembles polar pieces 10 to the battery pack 20, and the positive and negative electrode parts on the battery pack 20 are arranged closely, and before assembling the polar pieces 10, the interval between each polar piece 10 needs to be reduced after the positioning treatment.

[0046] In this embodiment, the polar pieces 10 are stacked in the containing cavities 111 of the hoppers 11 along the up-down direction, the upper part of each hopper 11 is provided with a taking opening 112 communicating with the containing cavity 111, and the suction working head 23 suctions the polar pieces 10 from the taking opening 112.

[0047] In the embodiment, the assembling mechanism 2 further comprises a lifting seat 24, the lifting seat 24 is movably arranged on the mechanical arm 22, and the suction working head 23 is arranged at the lower part of the lifting seat 24. The suction working head 23 is driven by the lifting seat 24 to move downward and take the material from the taking opening 112, and then the lifting seat 24 moves upward, so that the suction working head 23 lifts the pole piece 10 upward. When the assembling mechanism 2 moves above the battery pack 20, the lifting seat 24 moves downward and assembles the pole piece 10.

[0048] In the embodiment, the feeding device 1 comprises a jacking mechanism 12, the jacking mechanism 12 is located at one side of the stock bin 11 along a second direction, the second direction is perpendicular to the first direction, the jacking mechanism 12 comprises a jacking piece 121 and a driving assembly for driving the jacking piece 121 to move upward and downward. In the embodiment, the stock bin 11 is movably arranged along the second direction, the stock bin 11 has a jacking channel 113 extending along the upward and downward directions, the jacking channel 113 is located at the side of the stock bin 11 facing the jacking mechanism 12, and the jacking channel 113 is communicated with the containing cavity 111. The stock bin 11 has a loading position away from the jacking mechanism 12 along the second direction and a feeding position close to the jacking mechanism 12, when there is no pole piece 10 in the containing cavity 111, the stock bin 11 moves to the loading position and replenishes the pole pieces 10 at the loading position. When the replenishment of the pole pieces 10 is completed at the loading position, the stock bin 11 moves to the feeding position along the second direction, and the assembling mechanism 2 takes the material from the stock bin 11 located at the feeding position.

[0049] In the embodiment, when the stock bin 11 is located at the feeding position, the jacking piece 121 can extend into the containing cavity 111 from the jacking channel 113, the jacking piece 121 can lift the pole pieces 10 in the containing cavity 111 upward and make the pole pieces 10 move to the taking opening 112, so as to facilitate the suction working head 23 to take the material.

[0050] In the embodiment, as shown in Figure 5 , Figure 6 In the embodiment, the lower part of the stock bin 11 is provided with a support seat 114, the upper part of the support seat 114 has a support plane for supporting the pole pieces 10, the pole piece 10 located at the bottom of the containing cavity 111 can be supported on the support plane, and the remaining pole pieces 10 are stacked upward one by one from the bottommost pole piece 10. In the embodiment, the top surface of the support seat 114 constitutes the support plane.

[0051] In the embodiment, the support base 114 further has a slot 115 extending downward from the self-supporting plane, the slot 115 is communicated with the accommodating cavity 111, and the lower part of the jacking channel 113 is communicated with the slot 115. The feeding device 1 has a first state, a second state and a third state. In the first state, the hopper 11 is in a loading position and replenishment of the pole piece 10 is performed. After the replenishment of the pole piece 10 is completed, the hopper 11 moves to a feeding position, and the feeding device 1 is converted to the second state. In the second state, when the support base 114 is in the feeding position, the jacking piece 121 is inserted into the slot 115. In this state, the assembly mechanism 2 can take the material from the material taking opening 112. As the adsorption working head 23 takes away the pole piece 10 at the top of the hopper 11, the jacking piece 121 moves upward from the slot 115 into the accommodating cavity 111 and jacks up the pole piece 10. At this time, the feeding device 1 is converted to the third state, and the jacking piece 121 drives the pole piece 10 to move to the material taking opening 112, so that the adsorption working head 23 can take the material from the same height or the same position, thereby simplifying the material taking operation of the assembly mechanism 2.

[0052] In the embodiment, in the second state, the upper surface of the jacking piece 121 is lower than the support plane, so as to avoid collision between the jacking piece 121 and the pole piece 10 during insertion into the slot 115. The upward movement of the jacking piece 121 can contact the bottommost pole piece 10 and jack up the pole piece 10.

[0053] In the embodiment, the feeding device 1 includes a pressing plate 13 having a limiting surface facing downward. When the support base 114 is in the feeding position, the limiting surface abuts against the upper part of the support base 114. Through the cooperation between the pressing plate 13 and the support base 114, the movement of the hopper 11 in the up-down direction caused by the friction between the pole piece 10 and the hopper 11 during the material taking process is avoided.

[0054] In the embodiment, the hopper 11 includes a plurality of positioning columns 116 extending in the up-down direction, the positioning columns 116 are fixedly arranged on the upper part of the support base 114, and the plurality of positioning columns 116 surround to form the accommodating cavity 111. The gap between two adjacent positioning columns 116 constitutes the jacking channel 113.

[0055] In the embodiment, the feeding device 1 includes a first sensor arranged on the support base 114. The first sensor emits a detection light beam upward, and the detection light beam of the first sensor enters into the accommodating cavity 111. The first sensor is used for detecting whether there is a pole piece 10 in the accommodating cavity 111, so as to timely replenish the pole piece 10. In the embodiment, the first sensor is arranged at the bottom of the slot 115, and the jacking piece 121 is provided with a through hole penetrating in the up-down direction. In the second state and the third state, the detection light beam emitted by the first sensor passes through the through hole.

[0056] In the embodiment, the feeding device 1 comprises a second sensor configured to detect whether there is a pole piece 10 at the material taking opening 112. Specifically, the second sensor is in signal connection with the driving assembly, and the second sensor is arranged at the upper portion of the jacking mechanism 12. When there is no pole piece 10 at the material taking opening 112, the second sensor sends a signal to the driving assembly, and the driving assembly drives the jacking member 121 to move upward and jacks up the pole piece 10.

[0057] In the embodiment, the pole piece assembling equipment is provided with an assembling station 200. When the pole piece assembling equipment is working, the battery pack 20 is carried to the assembling station 200, and the assembling mechanism 2 transfers the pole piece 10 to the battery pack 20 located at the assembling station 200. In the embodiment, the pole piece assembling equipment comprises a conveying member (not shown in the figure) configured to convey the battery pack 20 along a conveying direction. The assembling station 200 is provided with a lifting plate 41 which is movably arranged at the upper portion of the workbench 100 and is configured to jack up the battery pack 20 and separate the battery pack 20 from the conveying member.

[0058] In the embodiment, as shown in Figures 9 to 11 The pole piece assembling equipment further comprises a driving wheel 42 and a driving block 43. The driving wheel 42 is rotatably arranged at the lower portion of the lifting plate 41 about a first rotation center line extending horizontally. The driving block 43 is movably arranged along a driving direction extending horizontally, and the driving direction is perpendicular to the extending direction of the first rotation center line. The upper portion of the driving block 43 is provided with a driving surface 431 extending obliquely from bottom to top along the driving direction. The driving block 43 is supported below the driving wheel 42, and the driving wheel 42 abuts against the driving surface 431. During the movement of the driving block 43 along the driving direction, the driving wheel 42 can move along the driving surface 431. When the driving wheel 42 moves to the upper portion of the driving surface 431, the lifting plate 41 is jacked up. The driving member such as a cylinder or a motor can be arranged along the horizontal direction through the cooperation between the driving wheel 42 and the driving block 43, so as to save the space in the up-down direction.

[0059] In the embodiment, one of the lifting plate 41 and the workbench 100 is provided with a guide column 44 extending along the up-down direction, and the other is provided with a guide hole. The guide column 44 is slidingly fitted in the guide hole, and the cooperation between the guide column 44 and the guide hole provides a guide for the up-down movement of the lifting plate 41. Specifically, in the embodiment, the guide column 44 is fixedly arranged at the lower portion of the lifting plate 41, and the guide hole is arranged on the workbench 100.

[0060] In the embodiment, the driving direction is the first direction, and the first rotation center line extends along the second direction. In the embodiment, along the driving direction, the lower part of the lifting plate 41 is provided with two groups of driving wheels 42 at intervals, each group of driving wheels 42 includes two driving wheels 42 arranged at intervals along the direction perpendicular to the driving direction, and the driving block 43 is also correspondingly provided with four driving blocks 43, and the four driving blocks 43 are driven to move by the same driving member. In the embodiment, the workbench 100 is provided with a guide rail 45 extending along the first direction, and the driving block 43 is slidingly fitted on the guide rail 45.

[0061] In the embodiment, the pole piece assembly equipment includes a feeding track 51 and a stopping mechanism 52. The feeding track 51 extends along the transmission direction, and the feeding track 51 includes two feeding tracks 51 arranged in parallel. The transmission member is slidingly fitted on the feeding track 51. The assembly station 200 is located between the two feeding tracks 51, and the lifting plate 41 is located between the two feeding tracks 51. The stopping mechanism 52 includes a stopping assembly capable of moving up and down. When the transmission member transmits the carrier loaded with the battery pack 20 to the assembly station 200, the stopping assembly moves upward. The carrier and the stopping assembly abut against each other and stop the movement of the carrier. Then the lifting plate 41 lifts the carrier loaded with the battery pack 20 upward.

[0062] In the embodiment, the stopping assembly includes a mounting seat 521, a stopping working head 522, and an elastic member. The mounting seat 521 is movably arranged up and down. The lower part of the stopping working head 522 is rotatably connected to the mounting seat 521 about a horizontally extending second rotation center line. The extension direction of the second rotation center line is perpendicular to the transmission direction. The upper part of the stopping working head 522 is provided with a roller 523. The elastic member is arranged between the stopping working head 522 and the mounting seat 521. The elastic member is used to provide the required force to prevent the stopping working head 522 from moving close to the mounting seat 521. Specifically, in the embodiment, the transmission direction is the first direction, and the second rotation center line extends along the second direction.

[0063] In the embodiment, the feeding device 1 is provided with four feeding devices 1. Two feeding devices 1 are arranged on the different sides of the assembly station 200 along the second direction. Two feeding devices 1 are arranged at intervals along the first direction on either side of the assembly station 200 along the second direction. On the one hand, the four feeding devices 1 can provide sufficient pole pieces 10. On the other hand, the assembly mechanism 2 can take materials from different feeding devices 1, so that the pole pieces 10 can be transported at a shorter distance, thereby improving the assembly efficiency.

[0064] In the embodiment, the carrying seat 21 is movably arranged along the first direction and the second direction. Specifically, referring to Figure 1 、 Figure 2As shown, the assembly mechanism 2 comprises a transmission frame 25 and a transmission rail 26, the transmission frame 25 extends along the second direction, and the transmission frame 25 comprises two transmission frames 25 arranged in parallel along the first direction, and the two transmission frames 25 are arranged on two sides of the assembly station 200 along the first direction. The transmission rail 26 extends along the first direction, and the transmission rail 26 is arranged between the two transmission frames 25, and the transmission rail 26 is movably arranged along the second direction, and the carrying seat 21 is slidingly arranged on the transmission rail 26 along the first direction.

[0065] In the embodiment, one positioning mechanism 3 is arranged between each feeding device 1 and the assembly station 200 along the second direction, and the positioning mechanism 3 is located on the path of the carrying of the pole piece 10 to the assembly station 200, which can reduce the additional movement stroke of the carrying seat 21 and ensure that the assembly equipment has high working efficiency.

[0066] In the embodiment, the detection station 300 is arranged between the two feeding devices 1 on either side of the assembly station 200 along the second direction, and the pole piece assembly equipment further comprises a single / double piece detection mechanism 61 and an angle detection mechanism 62. The single / double piece detection mechanism 61 is located on one side of the detection station 300, and is used for detecting the number of pole pieces 10 adsorbed by the adsorption work head 23 to avoid the adsorption work head 23 adsorbing multiple pole pieces 10 at a time. The angle detection mechanism 62 is located below the detection station 300, and is used for detecting the angle of the pole piece 10 adsorbed by the adsorption work head 23.

[0067] In the embodiment, the adsorption work head 23 is rotatably arranged at the lower part of the lifting seat 24 about a rotation center line extending in the vertical direction, when the angle detection mechanism 62 detects that the angle of the pole piece 10 adsorbed by the adsorption work head 23 deviates, the angle detection mechanism 62 transmits information to the controller, the controller sends a signal to the assembly mechanism 2, and drives the adsorption work head 23 to rotate about the rotation center line, so as to adjust the angle of the pole piece 10. Specifically, see Figure 7 、 Figure 8 As shown, the lower part of the lifting seat 24 is provided with a rotating motor 27, and the adsorption work head 23 is fixedly arranged on the output shaft of the rotating motor 27.

[0068] In the embodiment, the pole piece assembly equipment further comprises a waste bin 7, and the waste bin 7 is arranged adjacent to the positioning mechanism 3 along the first direction. When the adsorption work head 23 adsorbs multiple pole pieces 10 at a time, or the adsorbed pole pieces 10 have problems, the excess pole pieces 10 or the pole pieces 10 with problems can be transferred to the waste bin 7. Specifically, in the embodiment, one waste bin 7 is arranged on one side of each positioning mechanism 3 along the first direction, and the waste bin 7 is adjacent to the positioning mechanism 3, so that the structure of the assembly equipment is more compact, and the assembly mechanism 2 can discharge the pole pieces 10 with problems with shorter stroke.

[0069] In this embodiment, the positive and negative electrode parts on the battery pack 20 are arranged in different directions, specifically, part of the pole piece 10 needs to be assembled after rotating 180 degrees in the horizontal plane. In this embodiment, the positioning mechanism 3 is provided with multiple, including a first positioning mechanism and a second positioning mechanism, the first positioning mechanism includes a first positioning slot, and the second positioning mechanism includes a second positioning slot, which are arranged in the horizontal direction in reverse order and are used for positioning the pole piece 10 in different directions. Specifically, the two positioning mechanisms 3 located on either side of the assembly station 200 along the second direction are respectively the first positioning mechanism and the second positioning mechanism.

[0070] In this embodiment, the positioning slot 31 is provided with a positioning protrusion and a positioning ridge for accurate positioning of the pole piece 10.

[0071] The working process of the pole piece assembly equipment of this embodiment is as follows: the carrying seat 21 moves to the upper side of the feeding device 1, the multiple mechanical arms 22 are adjusted to be distributed at a preset interval, the suction working head 23 is driven to move downward by the lifting seat 24, and the suction working head 23 takes the material from the material taking opening 112 of the material bin 11. After the material taking is completed, the lifting seat 24 drives the pole piece 10 to move upward, and the carrying seat 21 moves along the first direction, so that the suctioned pole piece 10 moves to the detection station 300. The single and double piece detection mechanism 61 detects the pole piece 10 at the detection station 300 to exclude the risk of suctioning multiple pieces, and the angle detection mechanism 62 detects the angle of the pole piece 10. After the angle of the pole piece 10 is corrected, the carrying seat 21 drives the pole piece 10 to move to the positioning mechanism 3. After reaching the positioning mechanism 3, the lifting seat 24 moves downward to drive the pole piece 10 to move to the positioning slot 31 and be positioned. The positioning mechanism 3 is used to adjust the interval between the pole pieces 10, so that the pole pieces 10 are accurately distributed at a preset interval. After all the pole pieces 10 are inserted into the positioning slot 31 and the positioning process is completed, the lifting seat 24 moves upward to separate the pole pieces 10 from the positioning slot 31. Then the carrying seat 21 drives the pole pieces 10 to move to the assembly station 200. During the transfer to the assembly station 200, or before the transfer to the assembly station 200, or after the pole pieces 10 are transferred to the assembly station 200, under the control of the controller, the mechanical arm 22 moves along the first direction according to the preset program, so as to change the interval between the pole pieces 10 and make the interval between the pole pieces 10 consistent with the setting interval between the positive and negative electrode parts. In this way, when the pole pieces 10 are transferred to the upper side of the battery pack, only the lifting seat 24 is driven to move downward and drive the pole pieces 10 to move downward, and the pole pieces 10 can be accurately assembled to the positive and negative electrode parts.

[0072] To sum up, the pole piece assembling equipment of the embodiment is provided with the positioning mechanism 3, after taking the material from the feeding bin 11, the multiple pole pieces 10 sucked by the assembling mechanism 2 are placed in the multiple positioning grooves 31 for positioning before the pitch adjusting operation is performed, on the one hand, the multiple pole pieces 10 are distributed according to the preset pitch, on the other hand, the controller can calculate how to adjust the pitch according to the position distribution of the positioning grooves 31 and the position distribution of the positive and negative electrode parts, and the pole pieces 10 are adjusted according to the calculation result. After the positioning treatment, the position distribution of the pole pieces 10 is the same as the position distribution of the positioning grooves 31, the pole pieces 10 can correspond to the positions of the positive and negative electrode parts after the adjustment of the calculation result, so that accurate assembling can be realized.

[0073] The above embodiment is only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable the person skilled in the art to understand the content of the utility model and to implement it, and it cannot limit the protection scope of the utility model. Any equivalent change or modification according to the spirit and essence of the utility model should be covered in the protection scope of the utility model.

Claims

1. A tab assembly apparatus for assembling a tab to a positive and negative electrode portion of a battery, characterized by: The pole piece assembling device comprises a workbench, wherein a plurality of material bins are arranged along a first direction on the workbench, and each of the material bins has a containing cavity for storing the pole pieces. The feeding device comprises a lifting mechanism arranged on one side of the material bin along a second direction, wherein the second direction is perpendicular to the first direction, and the lifting mechanism comprises a lifting member and a driving assembly for driving the lifting member to move up and down. The material bin is movably arranged along the second direction, and has a lifting channel extending along an up-down direction, wherein the lifting channel is arranged on the side of the material bin facing the lifting mechanism, and the lifting channel is connected to the containing cavity. The lower part of the material bin is provided with a supporting seat, and the upper part of the supporting seat has a supporting plane for supporting the pole pieces.

2. The pole piece assembly apparatus of claim 1, wherein: The feeding device has a first state, a second state and a third state, wherein in the first state, the material bin is arranged at the loading position; in the second state, the material bin is arranged at the feeding position, and the lifting member is arranged in the insertion slot; and in the third state, the material bin is arranged at the feeding position, and the lifting member moves upwardly into the containing cavity. The feeding device comprises a pressing plate, wherein the pressing plate has a limiting surface facing downwardly, and when the supporting seat is arranged at the feeding position, the limiting surface abuts against the upper part of the supporting seat.

3. The pole piece assembly apparatus of claim 2, wherein: The second state is that the upper surface of the lifting member is lower than the supporting plane. The pole piece assembling device further comprises:

4. The pole piece assembly apparatus of claim 3, wherein: a lifting plate movably arranged on the upper part of the workbench, wherein one of the lifting plate and the workbench is provided with a guide column extending along an up-down direction, and the other is provided with a guide hole, and the guide column is slidingly arranged in the guide hole; a driving wheel rotatably arranged on the lower part of the lifting plate along a first rotation center line extending horizontally; and a lifting mechanism arranged on the lifting plate and comprising a lifting member and a driving assembly for driving the lifting member to move up and down.

5. The pole piece assembly apparatus of claim 1, wherein: ​ ​ ​ A driving block is movably arranged along a horizontally extending driving direction, the driving direction being perpendicular to the extending direction of the first rotation center line, an upper portion of the driving block being provided with a driving surface extending obliquely from bottom to top along the driving direction, the driving block being supported below the driving wheel, and the driving wheel being in abutment with the driving surface.

6. The pole piece assembly apparatus of claim 5, wherein: The polar piece assembling device further comprises: A conveying member is configured to convey the battery along a conveying direction; An upper feeding track extends along the conveying direction, and the upper feeding track comprises two upper feeding tracks arranged in parallel, and the lifting plate is located between the two upper feeding tracks; A stopping mechanism comprises a mounting seat, a stopping working head, and an elastic member, the mounting seat is movably arranged up and down, a lower portion of the stopping working head is rotatably connected to the mounting seat about a horizontally extending second rotation center line, the extending direction of the second rotation center line is perpendicular to the conveying direction, an upper portion of the stopping working head is provided with a roller, and the elastic member is arranged between the stopping working head and the mounting seat, and the elastic member is configured to provide a required force to prevent the stopping working head from approaching the mounting seat.

7. The pole piece assembly apparatus of claim 1, wherein: The polar piece assembling device is provided with an assembling station, the upper feeding device comprises four upper feeding devices, two upper feeding devices are arranged on each side of the assembling station along a second direction, the second direction is perpendicular to the first direction, two upper feeding devices are arranged at intervals along the first direction on each side of the assembling station along the second direction, the carrying seat is movably arranged along the first direction and the second direction, and one positioning mechanism is arranged between each upper feeding device and the assembling station along the second direction.

8. The pole piece assembly apparatus of claim 7, wherein: A detection station is arranged between two upper feeding devices on each side of the assembling station along the second direction, the polar piece assembling device further comprises a single / double piece detection mechanism and an angle detection mechanism, the single / double piece detection mechanism is arranged on one side of the detection station, the single / double piece detection mechanism is configured to detect the number of polar pieces adsorbed by the adsorption working head, the angle detection mechanism is arranged below the detection station, and the angle detection mechanism is configured to detect the angle of the polar pieces adsorbed by the adsorption working head. And / or, the polar piece assembling device is further provided with a waste bin, and the waste bin is arranged adjacent to the positioning mechanism along the first direction.

9. The pole piece assembly apparatus of any one of claims 1 to 8, wherein: The assembling mechanism further comprises a lifting seat, the lifting seat is movably arranged up and down on the mechanical arm, and the adsorption working head is rotatably arranged on a lower portion of the lifting seat about the rotation center line. And / or, a plurality of material bins of each upper feeding device are arranged at intervals along the first direction according to the preset interval; And / or, the positioning groove is provided with a positioning protrusion; and / or, the positioning groove is provided with a positioning protruding rib.

10. The pole piece assembly apparatus of claim 1, wherein: The positioning mechanism comprises a first positioning mechanism and a second positioning mechanism, the first positioning mechanism comprises a first positioning groove, the second positioning mechanism comprises a second positioning groove, and the first positioning groove and the second positioning groove are arranged in a horizontally inverted manner.

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