Feeding mechanism

Abstract

The utility model discloses a material unloading mechanism, which is used to separate a battery cell from a winding needle. It comprises: a first clamping assembly, which is used to contact at least a first position of the inner side wall of the battery cell; a second clamping assembly, which is used to contact at least a second position of the inner side wall of the battery cell, and the line connecting the second position and the first position is perpendicular to the axial direction of the battery cell; a connecting assembly, which comprises a moving part and a guiding part, and the moving part can slide in the guiding part along a direction perpendicular to the axial direction of the battery cell, and the moving part and the guiding part are in rolling contact through a plurality of rolling parts. The connecting assembly of the unloading mechanism of the utility model comprises a moving part and a guiding part, and the moving part and the guiding part are in rolling contact through a plurality of rolling parts, which reduces the friction of the relative movement between the moving part and the guiding part, and improves the precision of the synchronous movement of the two clamping assemblies.

Description

Technical Field

[0001] The utility model belongs to the field of lithium battery automation equipment, in particular to a material feeding mechanism. Background Art

[0002] When cutting the battery cell, a cutting mechanism with two clamping components is usually used to fix the inner and outer walls of the battery cell, and then the winding needle is pulled out from the inside of the battery cell to prevent the diaphragm in the inner circle of the battery cell from wrinkling or pulling out.

[0003] In the prior art, two clamping assemblies can be driven by the same driving member to clamp the inner and outer walls of the battery cell. In order to achieve the coordinated work of the two clamping assemblies, the two clamping assemblies are usually connected by a connecting assembly. Under the action of the connecting assembly, the two clamping assemblies can be driven to move synchronously along the axial direction of the battery cell, and can be driven to move relative to each other in a direction perpendicular to the axial direction of the battery cell.

[0004] However, the existing connecting assembly generates a relatively large friction force on the relative movement of the two clamping assemblies, which affects the precision of the synchronous movement of the two clamping assemblies. Utility Model Content

[0005] The utility model aims to provide a material unloading mechanism which can improve the synchronous movement accuracy of two clamping components.

[0006] To achieve the above purpose, the unloading mechanism of the utility model is used to separate the battery cell from a winding needle, comprising:

[0007] a first clamping assembly, configured to contact at least a first position of an inner side wall of the battery cell;

[0008] A second clamping assembly, used to contact at least a second position of the inner side wall of the battery core, and a line connecting the second position and the first position is perpendicular to the axial direction of the battery core;

[0009] The connecting assembly comprises a moving member and a guiding member, wherein the moving member can slide in the guiding member in a direction perpendicular to the axial direction of the battery core, and the moving member and the guiding member are in rolling contact through a plurality of rolling members;

[0010] Among them, the first clamping assembly and the second clamping assembly can be driven to move synchronously along the axial direction of the battery cell, and can be driven to move relative to each other in a direction perpendicular to the axial direction of the battery cell; the moving member is connected to the first clamping assembly, and the guide member is connected to the second clamping assembly.

[0011] In one embodiment of the unloading mechanism of the utility model, the guide member is a guide groove arranged on a guide plate; the guide plate is connected to the second clamping assembly, and a plurality of rolling members are rotatably arranged on both sides of the guide groove, and the outer peripheral surface of the rolling member extends into the guide groove to abut against the moving member.

[0012] In one embodiment of the unloading mechanism of the utility model, the rolling member on at least one side of the moving member is installed on the guide plate through an adjusting member; the adjusting member is provided with a waist-shaped hole, and the waist-shaped hole is arranged along the axial direction of the battery cell.

[0013] In one embodiment of the unloading mechanism of the utility model, the guide member is arranged in a guide groove of a guide plate; the guide plate is connected to the second clamping assembly, and the movable member is rotatably provided with a plurality of rolling members, and the outer peripheral surface of the rolling member extends out of the side wall of the movable member to abut against the guide member.

[0014] In one embodiment of the unloading mechanism of the utility model, the rolling member on at least one side of the moving member is installed on the moving member through an adjusting member; the adjusting member is provided with a waist-shaped hole, and the waist-shaped hole is arranged along the axial direction of the battery core.

[0015] In one embodiment of the unloading mechanism of the utility model, the guide member is a cylindrical groove body arranged inside a guide rod, and the rolling member is a ball disposed between the guide member and the moving member.

[0016] In one embodiment of the unloading mechanism of the utility model, the first clamping assembly and the second clamping assembly are respectively mounted on a first mounting plate, each of the first mounting plates is slidably mounted on a second mounting plate through a first slide rail, one of the second mounting plates is provided with a first driving member, the driving end of the first driving member is connected to the corresponding first mounting plate, and the driving direction of the first driving member and the setting direction of the first slide rail are parallel to the axial direction of the battery cell.

[0017] In one embodiment of the unloading mechanism of the utility model, each of the second mounting plates is slidably mounted on a base plate via a second slide rail; the base plate is provided with a second driving member, the driving end of the second driving member is connected to each second mounting plate, and the driving direction of the second driving member and the setting direction of the second slide rail are both perpendicular to the axial direction of the battery cell.

[0018] In one embodiment of the unloading mechanism of the utility model, the second driving member and the second mounting plate are arranged on different surfaces of the substrate, the second mounting plates are respectively provided with connecting plates, the substrate is provided with openings for the connecting plates to pass through, and the connecting plates penetrate the substrate through the openings and are connected to the second driving member.

[0019] In one embodiment of the unloading mechanism of the present invention, the second driving member includes a second servo motor, a second screw rod and a third screw rod, the thread directions of the second screw rod and the third screw rod are opposite, and the two are connected by a coupling, and the output shaft of the second servo motor is connected to the second screw rod; the second mounting plate connected to the first clamping assembly is connected to the second screw rod, and the second mounting plate connected to the second clamping assembly is connected to the third screw rod.

[0020] To sum up, the connecting component of the unloading mechanism of the utility model has a moving part and a guide part, and the moving part and the guide part are in rolling contact through multiple rolling parts, which reduces the friction of the relative movement between the moving part and the guide part. It not only has a simple structure, but also improves the accuracy of the synchronous movement of the two clamping components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of the first embodiment of the feeding mechanism of the utility model;

[0022] Figure 2 This is a structural diagram of another angle of the first embodiment of the material discharging mechanism of the utility model;

[0023] Figure 3 This is a structural diagram of the connecting assembly of the second embodiment of the blanking mechanism of the utility model;

[0024] Figure 4 It is a cross-sectional view of the connecting assembly of the third embodiment of the blanking mechanism of the utility model;

[0025] In the figure: 100, first clamping assembly; 110, first clamping rod; 120, second clamping rod; 130, third driving member; 200, second clamping assembly; 300, connecting assembly; 310, moving member; 320, guide member; 330, rolling member; 340, guide plate; 350, adjusting member; 351, waist-shaped hole; 360, guide rod; 400, first mounting plate; 410, first slide rail; 500, second mounting plate; 510, second slide rail; 520, connecting plate; 600, first driving member; 700, base plate; 710, opening; 800, second driving member; 810, second servo motor; 820, second lead screw; 830, third lead screw; 840, coupling. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] like Figure 1As shown, the unloading mechanism is used to unload the battery cell C from the winding needle (not shown in the figure), including a first clamping assembly 100 and a second clamping assembly 200 arranged at intervals in a direction perpendicular to the axial direction of the battery cell, and the first clamping assembly 100 and the second clamping assembly 200 are connected by a connecting assembly 300. The first clamping assembly 100 and the second clamping assembly 200 can be driven to move synchronously in the axial direction of the battery cell (i.e., the X direction in the figure), so that the first clamping rod 110 and the second clamping rod 120 are respectively located on the inner side and the outer side of the battery cell C, so that the side wall of the battery cell C can be clamped to facilitate the separation of the battery cell C from the winding needle; and can be driven to move relative to each other in a direction perpendicular to the axial direction of the battery cell (i.e., the Y direction in the figure), so that the battery cell C can be stretched and flattened after the battery cell C is separated from the winding needle.

[0028] The connecting assembly 300 includes a moving member 310 and a guide member 320. The moving member 310 is connected to the first clamping assembly 100, and the guide member 320 is connected to the second clamping assembly 200. The moving member 310 can slide in the guide member 320 in a direction perpendicular to the axial direction of the battery cell C. The moving member 310 and the guide member 320 are in rolling contact with each other through a plurality of rolling members 330. The setting mode in which the moving member 310 and the guide member 320 are in rolling contact with each other through a plurality of rolling members 330 can not only guide the movement of the two clamping assemblies in two directions, but also convert the sliding friction into rolling friction, thereby reducing the friction between the moving member 310 and the guide member 320 and improving the relative movement accuracy of the two clamping assemblies. The guide member 320 is a guide groove structure arranged on a guide plate 340. The guide plate 340 is connected to the second clamping assembly 200. Both the guide plate 340 and the guide member 320 are arranged in a direction perpendicular to the axial direction of the battery cell. The guide plate 340 is rotatably provided with a plurality of rolling members 330 on both sides of the guide groove structure, and the outer peripheral surfaces of the rolling members 330 extend into the guide groove structure to abut against the moving member 310 in the guide groove structure. The moving member 310 is in the shape of an elongated plate and has two side walls parallel to each other. When the moving member 310 is arranged in the guide groove structure on the guide plate 340, i.e., in the guide member 320, the two side walls of the moving member 310 abut against the outer peripheral surfaces of the rolling members 330, so that the moving member 310 can move smoothly and stably in the guide groove structure with high precision.

[0029] like Figure 1As shown, the rolling member 330 on at least one side of the guide member 320 of this embodiment is installed on the guide plate 340 through the adjusting member 350. Specifically, the adjusting member 350 is a plate-like structure, and a plurality of rolling members 330 are arranged on its main body, and a plurality of waist-shaped holes 351 are arranged through the upper and lower surfaces of the main body, and the waist-shaped holes 351 extend along the axial direction of the battery core. The adjusting member 350 passes through the waist-shaped holes 351 through screws (not shown) and is locked on the guide plate 340. By changing the locking position of the screw in the waist-shaped holes 351, the distance between the rolling member 330 on the adjusting member 350 and the rolling member 330 on the opposite side can be adjusted, and then the pressing tightness of the plurality of rolling members 330 and the moving member 310 can be conveniently installed / adjusted, the parallelism between the moving member 310 and the guide member 320 is ensured, and the precision of the synchronous movement of the two clamping components is improved.

[0030] In order to facilitate the abutment of the plurality of rolling elements 330 with the side walls of the moving element 310, a mounting groove is provided at the free end of the guide plate 340 for mounting the rolling elements 330. After mounting, the outer peripheral surface of the rolling element 330 and the two side walls of the moving element 310 are in the same horizontal plane to achieve stable contact.

[0031] In this embodiment, the rolling element 330 is implemented by a ball bearing, and the ball bearing is mounted on the guide plate 340 and the adjusting element 350 by screws.

[0032] Continue reading Figure 1 , the first clamping assembly 100 and the second clamping assembly 200 are respectively mounted on a first mounting plate 400, and each first mounting plate 400 is slidably mounted on a second mounting plate 500 through a first slide rail 410. As can be seen from the figure, each first mounting plate 400 is also fixedly connected to the corresponding module of the connecting assembly 300. One of the second mounting plates 500 is provided with a first driving member 600, and the driving end of the first driving member 600 is connected to the corresponding first mounting plate 400. The driving direction of the first driving member 600 and the extending direction of the first slide rail 410 are parallel to the axial direction of the battery cell.

[0033] In this embodiment, the first driving member 600 is preferably a motor screw assembly, which is mounted on the second mounting plate 500 corresponding to the first clamping assembly 100, and the driving end of the first driving member 600 is connected to the first mounting plate 400 connected to the first clamping assembly 100. The first driving member 600 drives the first clamping assembly 100 to slide along the first slide rail 410; at the same time, the second clamping assembly 200 is driven to move synchronously through the connecting assembly 300.

[0034] Such an arrangement can save the driving member of the second clamping assembly 200 in the axial direction of the battery core, and because the first clamping assembly 100 and the second clamping assembly 200 are driven by the same first driving member 600, the synchronization effect is good.

[0035] Combined with reference Figure 1 , 2 Each second mounting plate 500 is slidably mounted on the top surface of a substrate 700 through a second slide rail 510. The substrate 700 is provided with a second driving member 800, and the driving end of the second driving member 800 is connected to each second mounting plate 500. The driving direction of the second driving member 800 and the extending direction of the second slide rail 510 are both perpendicular to the axial direction of the battery cell. The second driving member 800 is used to drive the first clamping assembly 100 and the second clamping assembly 200 to synchronously approach / move away from each other in a direction perpendicular to the axial direction of the battery cell.

[0036] The second driving member 800 is disposed on the bottom surface of the substrate 700. Each second mounting plate 500 is provided with a connecting plate 520, and the two connecting plates 520 extend through the openings 710 provided through the substrate 700 to the bottom surface of the substrate 700 to be connected to the second driving member 800. Such a configuration saves space and does not affect the relative movement of the first clamping assembly 100 and the second clamping assembly 200 in a direction perpendicular to the axial direction of the battery cell.

[0037] like Figure 2 As shown, the second driving member 800 includes a second servo motor 810, a second screw rod 820 and a third screw rod 830. The output shaft of the second servo motor 810 is connected to the second screw rod 820. The second screw rod 820 and the third screw rod 830 have opposite thread directions and are connected by a coupling 840. The second mounting plate 500 of the first clamping assembly 100 is connected to the slider of the second screw rod 820 through the connecting plate 520, and the second mounting plate 500 of the second clamping assembly 200 is connected to the slider of the third screw rod 830 through its connecting plate 520.

[0038] Through the above arrangement, when the second servo motor 810 is started, the second screw rod 820 and the third screw rod 830 rotate synchronously. Since the thread directions of the two screw rods are opposite, the first clamping assembly 100 and the second clamping assembly 200 always move in opposite directions. Therefore, the second driving member 800 of this embodiment can drive the two clamping assemblies to move synchronously relative to each other by adopting the second servo motor 810 to drive the double screw rods to move synchronously, thereby saving driving members and improving the synchronous motion accuracy of the two clamping assemblies.

[0039] Still reading Figure 1The first clamping assembly 100 and the second clamping assembly 200 both include a first clamping rod 110, a second clamping rod 120 and a third driving member 130. The first clamping rod 110 and the second clamping rod 120 both extend along the axial direction of the battery cell and are spaced apart in a direction perpendicular to the axial direction of the battery cell. The third driving member 130 is connected to the second clamping rod to drive the second clamping rod 120 to approach or move away from the first clamping rod 110, thereby clamping and releasing the inner and outer walls of the battery cell C. The third driving member 130 of this embodiment is preferably a cylinder, thereby achieving faster motion control.

[0040] In other embodiments, the first clamping assembly 100 and the second clamping assembly 200 may also only include the first clamping rod 110. In this embodiment, the first driving member 600 is controlled to drive the two first clamping rods 110 to extend into the battery cell C, and then move in the opposite direction under the control of the third driving member 130 to tighten the inner wall of the battery cell C. At this time, the winding needle can be driven to withdraw from the battery cell C to achieve battery cell unloading. Subsequently, under the control of the second driving member 800, the two first clamping rods 110 continue to move in the opposite direction, thereby flattening the battery cell C.

[0041] In the embodiment where the first clamping assembly 100 and the second clamping assembly 200 only include a first clamping rod 110, the second driving member 800 and the third driving member 130 can be set selectively to complete both the unloading operation and the flattening operation of the battery cell.

[0042] like Figure 3 The second embodiment of the feeding mechanism of the utility model is shown in FIG. The difference from the first embodiment is that the rolling member 330 of the connecting assembly 300 is rotatably mounted on the moving member 310, and the outer peripheral surface of the rolling member 330 extends out of the side wall of the moving member 310 and abuts against the guide member 320. Since the rolling member 330 is mounted on the moving member 310, in order to ensure that the moving member 310 is better guided in the guide member 320, the rolling member 330 needs to be evenly spaced from one end to the other end of the moving member 310, so that the relative motion range of the first clamping assembly 100 and the second clamping assembly 200 is larger.

[0043] Similarly, the rolling member 330 on at least one side of the moving member 310 is installed on the moving member 310 through the adjusting member 350. The adjusting member 350 changes the tightness of the pressure between the multiple rolling members 330 and the moving member 310, ensures the parallelism between the moving member 310 and the guide member 320, and improves the accuracy of the synchronous movement of the two clamping components.

[0044] like Figure 4, which is a cross-sectional view of the connection assembly of the third embodiment of the blanking mechanism of the utility model. The difference from the previous embodiment is that the connection assembly 300 of this embodiment is implemented by a linear ball bearing. Specifically, the guide member 320 is a cylindrical groove body arranged inside a guide rod 360, the part of the moving member 310 extending into the guide member 320 is a cylinder, and the rolling member 330 is a ball disposed between the guide member 320 and the moving member 310. This embodiment is based on a linear ball bearing or a similar design, and can also achieve rolling contact between the moving member 310 and the guide member 320, thereby improving the accuracy of the synchronous movement of the two clamping components.

[0045] The above embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in this technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A feeding mechanism for separating a battery cell from a winding needle, characterized in that: include: a first clamping assembly, configured to contact at least a first position of an inner side wall of the battery cell; A second clamping assembly, used to contact at least a second position of the inner side wall of the battery core, and a line connecting the second position and the first position is perpendicular to the axial direction of the battery core; The connecting assembly comprises a moving member and a guiding member, wherein the moving member can slide in the guiding member in a direction perpendicular to the axial direction of the battery core, and the moving member and the guiding member are in rolling contact through a plurality of rolling members; Among them, the first clamping assembly and the second clamping assembly can be driven to move synchronously along the axial direction of the battery cell, and can be driven to move relative to each other in a direction perpendicular to the axial direction of the battery cell; the moving member is connected to the first clamping assembly, and the guide member is connected to the second clamping assembly.

2. The unloading mechanism according to claim 1, characterized in that: The guide member is a guide groove arranged on a guide plate; the guide plate is connected to the second clamping assembly, and a plurality of rolling members are rotatably arranged on both sides of the guide groove, and the outer peripheral surface of the rolling member extends into the guide groove to abut against the moving member.

3. The unloading mechanism according to claim 2, characterized in that: The rolling member on at least one side of the moving member is mounted on the guide plate through an adjusting member; the adjusting member is provided with a waist-shaped hole, and the waist-shaped hole is arranged along the axial direction of the battery core.

4. The unloading mechanism according to claim 1, characterized in that: The guide member is a guide groove arranged in a guide plate; the guide plate is connected to the second clamping assembly, and the movable member is rotatably provided with a plurality of rolling members, and the outer peripheral surface of the rolling member extends out of the side wall of the movable member to abut against the guide member.

5. The unloading mechanism according to claim 4, characterized in that: The rolling member on at least one side of the moving member is installed on the moving member through an adjusting member; the adjusting member is provided with a waist-shaped hole, and the waist-shaped hole is arranged along the axial direction of the battery core.

6. The unloading mechanism according to claim 1, characterized in that: The guide member is a cylindrical groove body arranged inside a guide rod, and the rolling member is a ball arranged between the guide member and the moving member.

7. The unloading mechanism according to claim 1, characterized in that: The first clamping assembly and the second clamping assembly are respectively mounted on a first mounting plate, and each of the first mounting plates is slidably mounted on a second mounting plate through a first slide rail. One of the second mounting plates is provided with a first driving member, and the driving end of the first driving member is connected to the corresponding first mounting plate. The driving direction of the first driving member and the setting direction of the first slide rail are parallel to the axial direction of the battery cell.

8. The unloading mechanism according to claim 7, characterized in that: Each of the second mounting plates is slidably mounted on a base plate via a second slide rail; the base plate is provided with a second driving member, a driving end of the second driving member is connected to each of the second mounting plates, and a driving direction of the second driving member and a setting direction of the second slide rail are both perpendicular to the axial direction of the battery cell.

9. The unloading mechanism according to claim 8, characterized in that: The second driving member and the second mounting plate are arranged on different surfaces of the substrate. The second mounting plates are respectively provided with connecting plates. The substrate is provided with openings for the connecting plates to pass through. The connecting plates penetrate the substrate through the openings and are connected to the second driving member.

10. The unloading mechanism according to claim 9, characterized in that: The second driving member includes a second servo motor, a second screw rod and a third screw rod. The thread directions of the second screw rod and the third screw rod are opposite, and the two are connected by a coupling. The output shaft of the second servo motor is connected to the second screw rod; the second mounting plate connected to the first clamping assembly is connected to the second screw rod, and the second mounting plate connected to the second clamping assembly is connected to the third screw rod.

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