Automatic feeding mechanism for battery connecting pieces

Abstract

The utility model discloses a battery connecting piece automatic feeding mechanism which comprises a material storage mechanism used for storing connecting pieces and a material taking mechanism used for clamping the connecting pieces from the material storage mechanism, the material storage mechanism comprises a material storage cavity and a movable adjusting mechanism, the material storage cavity is defined by movable coamings, and the movable coamings are arranged in the material storage cavity. The movable surrounding plate can move in the direction towards or away from the material storage cavity under the action of the movable adjusting mechanism so that the size and shape of the material storage cavity can be changed. The battery connecting piece feeding device can accurately and rapidly complete full-automatic feeding of battery connecting pieces and can be flexibly suitable for battery connecting pieces of different specifications and models.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery assembly production, and in particular relates to an automatic feeding mechanism for battery connecting pieces. Background Art

[0002] In the process of assembling a battery module using multiple single cells, it is necessary to weld the connecting pieces onto the tabs of the single cells, and then connect the multiple single cells in series or in parallel by fixing the connecting pieces. The more single cells there are, the more connecting pieces need to be welded. It can be seen that the feeding efficiency of the connecting pieces during welding greatly affects the assembly efficiency of the battery module.

[0003] In traditional connecting piece welding operations, multiple single battery cells are usually placed into an assembly fixture manually, and then the multiple connecting pieces are placed one by one at the welding positions. Finally, welding equipment is used to perform welding of the multiple connecting pieces in sequence or simultaneously. The manual loading operation is complicated, inefficient, and prone to placement errors. Utility Model Content

[0004] The utility model provides an automatic feeding mechanism for connecting sheets applicable to battery assembly production to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A battery connecting piece automatic feeding mechanism comprises a storage mechanism for storing connecting pieces and a picking mechanism for clamping connecting pieces from the storage mechanism. The storage mechanism comprises a storage cavity and a movable adjustment mechanism. The storage cavity is formed by being surrounded by a movable enclosure. The movable enclosure can be moved toward or away from the storage cavity under the action of the movable adjustment mechanism to change the size and shape of the storage cavity.

[0007] Furthermore, the movable enclosure has a connecting end, and the connecting end of each movable enclosure is slidably connected to the inner wall of the adjacent movable enclosure; an L-shaped limiting plate is provided at the connecting corner of adjacent movable enclosures, and the L-shaped limiting plate includes two outer walls, one of which is fixedly connected to the connecting end of a movable enclosure, and a sliding sleeve is fixed on the other outer wall, and another adjacent movable enclosure is slidably connected in the sliding sleeve.

[0008] Furthermore, the movable adjustment mechanism includes a base, a limit sleeve slidably connected to the base, an eccentric roller rotatably connected to the base, and a guide frame fixedly connected to the base, each movable enclosure is slidably connected to the inner side of a limit sleeve, each limit sleeve is arranged on the outside of an eccentric roller, each limit sleeve is slidably connected to a guide frame, and each eccentric roller is connected to a second motor.

[0009] Furthermore, the height of the L-shaped limiting plate is greater than the height of the movable enclosure.

[0010] Furthermore, the material storage mechanism also includes a lifting platform, which is arranged in the material storage cavity and is used to place the connecting piece.

[0011] Furthermore, the material picking mechanism includes a movable drive member, a lifting drive member and a mounting base plate connected in sequence, and the mounting base plate is provided with a negative suction head that can extend into the material storage cavity. The movable drive member is used to drive the mounting base plate to move horizontally between the processing station and the material storage mechanism, and the lifting drive member is used to drive the mounting base plate to move up and down in the vertical direction, thereby driving the negative suction head to extend into or leave the material storage cavity.

[0012] Furthermore, a positioning column is fixedly connected to the bottom of the mounting base plate, the negative suction head is slidably connected to the positioning column along the vertical direction, and a spring is connected between the top of the negative suction head and the mounting base plate.

[0013] Furthermore, a positioning plate capable of abutting against the top of the L-shaped limiting plate is fixed to the bottom of the positioning column.

[0014] Furthermore, a vibration plate is fixedly connected to the negative suction head, and a vibration cylinder slidably connected to the mounting base plate is fixed on the top of the vibration plate.

[0015] Furthermore, the vibration plate is configured to be able to abut against the top of the positioning plate.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) In the present invention, the fully automated loading of battery connecting pieces can be completed accurately and quickly through the cooperation between the material storage mechanism and the material taking mechanism, and the material storage mechanism includes a material storage cavity enclosed by movable enclosures for placing connecting pieces, and each movable enclosure can be moved independently, thereby effectively changing the shape and size of the material storage cavity, thereby flexibly adapting to the storage and loading of connecting pieces of different specifications;

[0018] (2) By providing an L-shaped limit plate matched with the connecting corners of adjacent movable panels, the corners of the connecting plates can be protected on the one hand, and the sliding sleeve on the L-shaped limit plate can ensure the effective linkage between the movable panels on the other hand;

[0019] (3) The eccentric roller is used to drive the movable enclosure to move, which has a simple structure and reasonable assembly;

[0020] (4) A vibration structure that cooperates with the negative suction head is provided in the material taking mechanism, which can effectively avoid the problem of the connecting piece sticking when taking the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0022] Figure 2 This is a structural schematic diagram of the material storage mechanism in the embodiment of the utility model;

[0023] Figure 3 It is a three-dimensional structural diagram of the cooperation of the movable enclosure, the L-shaped limiting plate and the limiting sleeve in the embodiment of the utility model;

[0024] Figure 4 It is a plan view of the coordination of four movable enclosures in the embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the material taking mechanism in the embodiment of the utility model.

[0026] In the figure: 100, material storage mechanism; 101, movable enclosure; 1011, connecting end; 102, L-shaped limit plate; 103, sliding sleeve; 104, lifting platform; 105, base; 106, limit sleeve; 107, eccentric roller; 108 guide frame; 109, laser transmitter; 110, laser receiver; 200, material picking mechanism; 201, mounting base plate; 202, negative suction head; 203, positioning column; 204, spring; 205, positioning plate; 206, vibration plate; 207, vibration cylinder; 208, hydraulic lifting cylinder; 209, slide seat of linear motor; 210, upper mounting plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1 As shown, the automatic feeding mechanism for battery connecting pieces provided by the embodiment of the utility model comprises a storage mechanism 100 and a material taking mechanism 200 which cooperate with each other. The storage mechanism 100 is used to store the connecting pieces, and the material taking mechanism 200 is used to clamp the connecting pieces from the storage mechanism 100.

[0029] like Figure 2As shown, the material storage mechanism 100 includes a material storage cavity formed by four movable enclosures 101, and the material storage cavity is used to place the connecting piece. The movable enclosure 101 has a connecting end 1011, and the connecting end 1011 of any movable enclosure 101 is slidably connected to the inner side wall of another adjacent movable enclosure 101, and the inner side wall faces the connecting piece stored in the material storage cavity. The movable enclosures 101 are slidably connected to each other, so that the movable enclosures 101 can move in the direction toward or away from the material storage cavity, thereby changing the size and shape of the material storage cavity.

[0030] like Figure 1 and Figure 5 As shown, the material taking mechanism 200 includes a moving drive member, a lifting drive member and a mounting base plate 201 which are connected in sequence.

[0031] A negative suction head 202 is connected below the mounting base plate 201 and can extend into between the four movable enclosure plates 101 .

[0032] An upper mounting plate 210 is arranged above the mounting base 201. The lifting drive component adopts a hydraulic lifting cylinder 208. The hydraulic lifting cylinder 208 is connected between the mounting base 201 and the upper mounting plate 210, and is used to drive the mounting base 201 to move up and down in the vertical direction, thereby driving the negative suction head 202 to extend into or leave the storage cavity.

[0033] The moving drive member adopts a linear motor, and the slide 209 of the linear motor is fixed on the upper mounting plate 210. The linear motor is used to drive the hydraulic lifting cylinder 208 and the mounting base plate 201 to move horizontally between the processing station and the material storage mechanism 100. Among them, the linear motor and the hydraulic lifting cylinder 208 are both connected to the controller.

[0034] The utility model utilizes the material storage mechanism 100 and the material taking mechanism 200 to realize the principle of automatic loading of the connecting piece as follows:

[0035] Before starting the machine, place the connecting pieces in a stacked manner in the storage chamber;

[0036] When the machine is started, the hydraulic lifting cylinder 208 and the mounting base plate 201 are driven by the linear motor to move horizontally, specifically, they move back and forth between the processing station and the material storage mechanism 100; when the mounting base plate 201 moves to the top of the material storage mechanism 100, the hydraulic lifting cylinder 208 drives the mounting base plate 201 to move down close to the material storage mechanism 100, and the negative suction head 202 is extended into the material storage cavity, so as to conveniently realize the negative suction clamping of the connecting piece. After the material is taken, the hydraulic lifting cylinder 208 drives the mounting base plate 201 to move up, and the linear motor drives the mounting base plate 201 to move to the top of the processing station, so as to realize the automatic loading of the connecting piece.

[0037] For further information about the storage mechanism 100, refer to Figure 2 and Figure 3 As shown, an L-shaped limiting plate 102 is provided at the connecting corner of two adjacent movable enclosures 101, the L-shaped limiting plate 102 is located on the inner side of the movable enclosure 101, and the connecting piece is placed between the four L-shaped limiting plates 102, so that the four L-shaped limiting plates 102 can be used to protect the corners of the connecting piece.

[0038] In a preferred embodiment, the height of the L-shaped limiting plate 102 is set to be greater than the height of the movable enclosure 101, so that more connecting plates can be conveniently stacked and placed.

[0039] Continue to refer Figure 2 and Figure 3 The L-shaped stop plate 102 includes two outer walls, one of which is fixedly connected to the connecting end 1011 of a movable panel 101, and a sliding sleeve 103 is fixed to the other outer wall, and another adjacent movable panel 101 slides through the sliding sleeve 103. Thus, the sliding connection between adjacent movable panels 101 can be effectively achieved through the cooperation between the L-shaped stop plate 102 and the sliding sleeve 103. The four movable panels 101 are formed as shown in FIG. Figure 4 The head-to-tail coordination shown can ensure effective linkage between the four movable enclosures 101 through the sliding sleeve 103 on the L-shaped limiting plate.

[0040] like Figure 2 As shown, a lifting platform 104 capable of lifting and lowering is also provided in the material storage chamber, and the lifting platform 104 can be provided between the four L-shaped limit plates 102, and the connecting piece is placed on the top of the lifting platform 104, and the lifting platform 104 is connected to the first motor, and the first motor is connected to the controller. The lifting platform can be used to push the connecting piece upward to ensure that the negative suction head 202 can absorb the connecting piece in the material storage chamber.

[0041] The material storage mechanism 100 further includes a moving and adjusting mechanism, under the action of which the movable enclosure 101 can move in a direction toward or away from the material storage cavity, thereby changing the size and shape of the material storage cavity.

[0042] Specifically, Figure 2 and Figure 3 As shown, the mobile adjustment mechanism includes:

[0043] Base 105;

[0044] Four limiting sleeves 106 slidably connected to the base 105;

[0045] Four eccentric rollers 107 rotatably connected to the base 105;

[0046] Four guide frames 108 are fixedly connected to the base 105 .

[0047] Among them, the guide frame 108, the limiting sleeve 106, and the eccentric roller 107 are matched with each other from the outside to the inside, the limiting sleeve 106 is slidably connected to the guide frame 108, the eccentric roller 107 rotates inside the limiting sleeve 106, and the movable enclosure 101 is slidably connected to the inner side of the limiting sleeve 107 in a one-to-one manner. Each eccentric roller 107 is also connected to a second motor, and the second motor is connected to the controller. Based on this, when the eccentric roller 107 is driven by the second motor to rotate eccentrically, the limiting sleeve 106 can be driven to move in the guide frame 108. Taking the movement of the limiting sleeve 106 away from the storage chamber as an example, the movement of the limiting sleeve 106 drives the movable enclosure 101 connected thereto to move synchronously, such as Figure 4 The solid line position shown is moved to the dotted line position, thereby effectively increasing the size of the storage cavity between the four movable enclosures 101 .

[0048] If the four movable enclosures 101 move evenly, only the size of the storage cavity will be changed; if any of the movable enclosures 101 move individually, the shape and size of the storage cavity can be changed.

[0049] In a preferred embodiment, if Figure 1 As shown, a laser emitter 109 and a laser receiver 110 are provided on both sides of the material storage mechanism 100. Both the laser emitter 109 and the laser receiver 109 are located above the movable enclosure 101, and the laser beam emitted by the laser emitter 109 passes between the adjacent L-shaped limit plates 102 and is received by the laser receiver 110. On this basis, when the height of the connecting piece placed in the material storage cavity is higher than the laser emitter 109, the laser beam emitted by the laser emitter 109 will be blocked and reflected by the connecting piece, and the material taking mechanism 200 can be used to take the connecting piece from the material storage cavity, and the height of the top of the connecting piece decreases. When the height of the top of the connecting piece is lower than the laser emitter 109, the laser beam is received by the laser receiver 110, and the lifting platform 104 is started to push the connecting piece upward, thereby ensuring that the negative suction head 202 can effectively absorb the connecting piece in the material storage cavity.

[0050] Regarding the material taking mechanism 200 , in combination with the setting that the height of the L-shaped limiting plate 102 is greater than the height of the movable enclosure 101 , a positioning structure for taking materials may be preferably provided.

[0051] Specifically, Figure 5 As shown, a positioning column 203 is fixedly connected to the bottom of the mounting base plate 201 , and a positioning plate 205 capable of contacting the top of one of the L-shaped limiting plates 102 is fixed to the bottom of the positioning column 203 .

[0052] The negative suction head 202 is slidably connected to one side of the positioning column 203 , and a spring 204 is connected between the top of the negative suction head 202 and the mounting base plate 201 .

[0053] Based on this, combined with the setting of laser detection and the lifting platform 104 for positioning and pushing the connecting piece upward, when the mounting substrate 201 moves downward and approaches the storage mechanism 100, the negative suction head 202 first extends into the storage cavity, and compresses the spring 204 on the top of the negative suction head 202 under the support of the connecting piece, thereby effectively ensuring the stable contact between the negative suction head 202 and the connecting piece through elastic resistance, and then when the positioning plate 205 at the bottom of the positioning column 203 resists against the top of one of the L-shaped limit plates 102, the mounting substrate 201 is limited and cannot move further downward. In this position, it indicates that the negative suction head 202 has completed a negative suction of the connecting piece. At this time, the material picking mechanism 200 switches from the downward moving state before picking to the upward moving state after picking.

[0054] To avoid the adjacent connecting pieces from sticking to each other during material removal, Figure 5 As shown, a vibration plate 206 is fixedly connected to one side of the negative suction head 202, and a vibration cylinder 207 is fixed on the top of the vibration plate 206 and is slidably connected to the mounting base plate 201, so that when the negative suction head 202 completes the negative suction and moves upward, the vibration cylinder 207 is started to drive the vibration plate 206 and the negative suction head 202 to vibrate, and the vibration causes the adhered connecting piece to fall back into the material storage cavity. The vibration cylinder 20 is also connected to the controller.

[0055] In a preferred embodiment, the vibration plate 206 is configured to be able to abut against the top of the positioning plate 205, so that during the vibration process, the vibration amplitude of the vibration plate 206 can also be limited based on the positioning plate 205, thereby avoiding excessive impact of the negative suction head 202 on the connecting plate in the storage cavity during vibration.

[0056] It can be seen from the above embodiments that the complete feeding principle of the material storage mechanism 100 and the material taking mechanism 200 is:

[0057] Material taking: The linear motor drives the mounting base plate 201 to move horizontally to the top of the material storage mechanism 100, and the hydraulic lifting cylinder 208 drives the mounting base plate 201 to move downward gradually close to the material storage mechanism 100; as the mounting base plate 201 moves downward, the negative suction head 202 extends into the material storage cavity to take the material, and when the positioning plate 205 contacts the top of one of the L-shaped limit plates 102, one material taking is completed;

[0058] Loading: After the mounting base plate 201 is driven to rise and reset by the hydraulic lifting cylinder 208, the mounting base plate 201 is driven by the linear motor to move horizontally in the direction of the processing station. While the mounting base plate 201 is rising, the vibration cylinder 207 in the material taking mechanism 200 is started to vibrate the negative suction head 202, and then the lifting platform 104 in the material storage mechanism 100 is started to push the connecting piece (pushed to Figure 1 The position indicated by the dotted line in the middle) is used for the next material extraction.

[0059] In addition, according to the existing battery module structure, the electrodes of its single cell are usually divided into two types: positive electrode and negative electrode. Figure 1 As shown, in order to ensure that different electrodes and different connecting pieces can be accurately welded, two sets of material storage mechanisms 100 are correspondingly set up, which are used to store connecting pieces suitable for positive and negative electrodes respectively, and the material taking mechanism 200 is also correspondingly provided with two sets of negative suction heads 202, thereby facilitating the synchronous feeding and matching between the positive / negative electrodes and the corresponding connecting pieces.

[0060] The present invention has been disclosed as a preferred embodiment above, but it is not intended to limit the present invention. Any technical solution obtained by adopting equivalent replacement or equivalent transformation solutions falls within the protection scope of the present invention.

Claims

1. A battery connecting piece automatic feeding mechanism, characterized in that: The invention comprises a material storage mechanism (100) for storing connecting sheets and a material taking mechanism (200) for clamping connecting sheets from the material storage mechanism (100). The material storage mechanism (100) comprises a material storage cavity and a movable adjustment mechanism. The material storage cavity is formed by being surrounded by a movable enclosure (101). Under the action of the movable adjustment mechanism, the movable enclosure (101) can move in a direction toward or away from the material storage cavity to change the size and shape of the material storage cavity.

2. The automatic feeding mechanism for battery connecting pieces according to claim 1, characterized in that: The movable enclosure (101) has a connecting end (1011), and the connecting end (1011) of each movable enclosure (101) is slidably connected to the inner wall of the adjacent movable enclosure (101); an L-shaped limiting plate (102) is provided at the connecting corner of the adjacent movable enclosures (101), and the L-shaped limiting plate (102) includes two outer walls, one of which is fixedly connected to the connecting end (1011) of a movable enclosure (101), and a sliding sleeve (103) is fixed on the other outer wall, and another adjacent movable enclosure (101) is slidably connected in the sliding sleeve (103).

3. The automatic feeding mechanism for battery connecting pieces according to claim 1, characterized in that: The movable adjustment mechanism comprises a base (105), a limiting sleeve (106) slidably connected to the base (105), an eccentric roller (107) rotatably connected to the base (105), and a guide frame (108) fixedly connected to the base (105); each movable enclosure (101) is slidably connected to the inner side of a limiting sleeve (106); each limiting sleeve (106) is sleeved on the outside of an eccentric roller (107); each limiting sleeve (106) is slidably connected to the inside of a guide frame (108); and each eccentric roller (107) is connected to a second motor.

4. The automatic feeding mechanism for battery connecting pieces according to claim 2, characterized in that: The height of the L-shaped limiting plate (102) is greater than the height of the movable enclosure plate (101).

5. The automatic feeding mechanism for battery connecting pieces according to claim 1, characterized in that: The material storage mechanism (100) further comprises a lifting platform (104), wherein the lifting platform (104) is arranged in the material storage cavity, and the lifting platform (104) is used to place a connecting piece.

6. The automatic feeding mechanism for battery connecting pieces according to claim 4, characterized in that: The material picking mechanism (200) comprises a movable driving member, a lifting driving member and a mounting base (201) which are connected in sequence, and the mounting base (201) is provided with a negative suction head (202) which can be extended into the material storage cavity. The movable driving member is used to drive the mounting base (201) to move horizontally between the processing station and the material storage mechanism (100), and the lifting driving member is used to drive the mounting base (201) to move up and down in the vertical direction, thereby driving the negative suction head (202) to extend into or leave the material storage cavity.

7. The automatic feeding mechanism for battery connecting pieces according to claim 6, characterized in that: A positioning column (203) is fixedly connected to the bottom of the mounting substrate (201), the negative suction head (202) is slidably connected to the positioning column (203) along the vertical direction, and a spring (204) is connected between the top of the negative suction head (202) and the mounting substrate (201).

8. The automatic feeding mechanism for battery connecting pieces according to claim 7, characterized in that: A positioning plate (205) capable of contacting the top of the L-shaped limiting plate (102) is fixed to the bottom of the positioning column (203).

9. The automatic feeding mechanism for battery connecting pieces according to claim 8, characterized in that: A vibration plate (206) is fixedly connected to the negative suction head (202), and a vibration cylinder (207) slidably connected to the mounting base plate (201) is fixed on the top of the vibration plate (206).

10. The automatic feeding mechanism for battery connecting pieces according to claim 9, characterized in that: The vibration plate (206) is configured to be able to abut against the top of the positioning plate (205).

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