Battery body positioning device

By using the battery body positioning device and the cell plane positioning reference, the problem of inaccurate positioning caused by the deviation of the cell tab position is solved, realizing the rapid and accurate positioning and clamping of the cell, and improving the pass rate of cell production.

CN223471717UActive Publication Date: 2025-10-24SUZHOU IND PARK HONGSITE ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202422650762.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-10-24
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

During the production of soft-pack lithium batteries, deviations in the positions of the positive and negative tabs of the battery cell lead to inaccurate tab positioning, affecting subsequent processing steps and reducing the cell's pass rate.

Method used

The battery body positioning device uses a plane of the battery cell body as a positioning reference. The positioning strip contacts the battery cell plane, and combined with the micro-head and clamping assembly, it can achieve fast and accurate positioning and clamping of the battery cell.

Benefits of technology

This improved the problem of misaligned battery cell positioning, increased positioning speed and effectiveness, ensured the smooth progress of subsequent battery processing steps, and improved the battery cell production qualification rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a battery body positioning device, which comprises a bottom support plate, a right-angle support plate; the micrometer head is arranged on the right-angle supporting plate; the positioning strip connecting assembly is connected with a positioning strip for positioning the battery cell, and the micrometer head is used for adjusting the position of the positioning strip; and the battery cell clamping assembly is used for clamping tabs at the two ends of the battery cell to fix the battery cell. The utility model relates to the technical field of new energy batteries, in particular to a battery body positioning device, which is characterized in that a plane of a battery cell body is used as a positioning reference, the whole group of positioning device is mounted on a mobile platform, and when a battery cell is positioned, the positioning device moves towards the battery cell, a positioning strip is in contact with the plane of the battery cell, and the battery cell is straightly positioned; the situation that the battery is inclined due to the fact that the tabs at the two ends are not collinear in the previous process is improved, the battery cell can be positioned and clamped, the positioning speed is high, the positioning effect is good, and the subsequent battery processing procedure can be conveniently and smoothly carried out.
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Description

TECHNICAL FIELD

[0001] The utility model relates to new energy battery technical field especially is a kind of battery body positioning device. BACKGROUND

[0002] With the development of new energy industry, the demand of battery cell increases day by day, and the tab cutting of battery cell is a key point in the manufacturing process. At present, the side of the positive and negative tab of the battery cell is positioned, so the cutting of the tab in the previous process may cause the tabs at both ends not to be in a straight line, which leads to the battery cell not being straight after positioning.

[0003] However, the soft package battery cell needs to be flat when flowing on the production line, and the product size needs to meet the drawing requirements after various subsequent processes are completed. Due to the inaccurate positioning of the battery cell after the tab cutting, the positioning deviation of the tab is large, which affects the correction accuracy during the subsequent correction and causes problems in the production of the battery cell. SUMMARY

[0004] Therefore, the utility model wants to overcome the problem that the deviation of the positive and negative tabs of the battery cell in the production process of the soft package lithium battery affects the subsequent tab processing process and reduces the qualified rate of the soft package battery.

[0005] To solve the above technical problems, the utility model provides a battery body positioning device, which comprises a bottom support plate, a right-angle support plate fixedly installed on the bottom support plate, two differential heads arranged on the right-angle support plate, a positioning strip connecting assembly connected with the right-angle support plate, a positioning strip for positioning the battery cell connected to the positioning strip connecting assembly, and a differential head for adjusting the position of the positioning strip, two symmetrical battery cell clamping assemblies arranged on the bottom support plate, and the two battery cell clamping assemblies for clamping the tabs at both ends of the battery cell to fix the battery cell.

[0006] In one embodiment of the utility model, the positioning strip connecting assembly comprises a vertical mounting plate, two symmetrical pivot mounting plates, a pivot, a positioning support plate and a buffer assembly, the vertical mounting plate and one right-angle surface of the right-angle support plate are fixedly connected, the two symmetrical pivot mounting plates are arranged at the upper and lower ends of the vertical mounting plate respectively, the two ends of the pivot axis are arranged on the pivot mounting plates respectively, the positioning support plate and the outer wall of the pivot are fixedly connected, the buffer assembly is arranged on the positioning support plate, and the positioning strip is connected with the buffer assembly.

[0007] In one embodiment of the utility model, the pivot mounting plate is provided with a bearing, and the end of the pivot axis is connected with the inner ring of the bearing.

[0008] In one embodiment of the utility model, the buffer assembly includes connecting column, guide sliding sleeve and spring, the guide sliding sleeve is fixedly arranged on the positioning support plate, one end of connecting column is fixedly connected with the positioning strip, and the other end of connecting column penetrates the guide sliding sleeve, the connecting column and the guide sliding sleeve are slidingly connected, the spring is sleeved on the connecting column, and the spring is located between the positioning strip and the positioning support plate.

[0009] In one embodiment of the utility model, the sensing head of the differential head is in contact with the side surface of the positioning support plate.

[0010] In one embodiment of the utility model, the battery cell clamping assembly includes clamping drive cylinder, clamping connecting support and tab clamping block, the piston rod of clamping drive cylinder is connected with the clamping connecting support, the tab clamping block is arranged on the clamping connecting support, and the clamping drive cylinder can drive the tab clamping block to be in contact with the battery cell.

[0011] In one embodiment of the utility model, a linear guide rail one is arranged on the bottom support plate, a sliding block one is arranged on the linear guide rail one, and a cylinder mounting plate is fixedly connected to the sliding block one.

[0012] In one embodiment of the utility model, a linear guide rail two is arranged on the clamping connecting support, and a sliding block two is connected to the tab clamping block.

[0013] In one embodiment of the utility model, the battery cell clamping assembly further includes a locking plate, and the cylinder mounting plate is fixed to the bottom support plate through the locking plate.

[0014] In one embodiment of the utility model, the positioning reference surface, at which the positioning strip is in contact with the battery cell, is a plane.

[0015] Compared with the prior art, the above technical scheme of the utility model has the following beneficial effects:

[0016] The battery body positioning device uses a plane of the battery cell body as a positioning reference, and the whole positioning device is installed on a mobile platform; when the battery cell is positioned, the positioning device moves towards the battery cell, the positioning strip is in contact with the plane of the battery cell, the battery cell is positioned flat, the situation that the battery is inclined due to the fact that the two tabs at the two ends are not collinear in the previous process is improved, the positioning and clamping of the battery cell can be completed, the positioning speed is fast, the positioning effect is good, and the subsequent battery processing procedures can be smoothly performed. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the content of the utility model more easily be clearly understood, the following according to the specific embodiment of the utility model and combining with the drawings, the utility model is further explained in detail, wherein

[0018] Figure 1 For the structure diagram of the battery body positioning device in the preferred embodiment of the utility model Figure 1 ;

[0019] Figure 2 For the structure diagram of the battery body positioning device in the preferred embodiment of the utility model Figure 2 ;

[0020] Figure 3 For the top view of the battery body positioning device in the preferred embodiment of the utility model;

[0021] Figure 4 For the front view of the battery body positioning device in the preferred embodiment of the utility model;

[0022] Figure 5 For the left view of the battery body positioning device in the preferred embodiment of the utility model;

[0023] Figure 6 For the structure diagram of the battery body positioning device in the preferred embodiment of the utility model.

[0024] Description of the drawing of the specification: bottom support plate 1, linear guide rail one 11, slider one 12, air cylinder mounting plate 13, mounting hole 14, right-angle support plate 2, differential head 3, positioning strip connecting assembly 4, vertical mounting plate 41, two symmetrically arranged pivot mounting plates 42, bearing 421, pivot 43, positioning support plate 44, buffer assembly 45, connecting column 451, guide sliding sleeve 452, spring 453, positioning strip 5, battery cell clamping assembly 6, clamping drive cylinder 61, clamping connecting bracket 62, linear guide rail two 621, tab clamping block 63, transition step 631, slider two 632, locking plate 64, waist-shaped hole 641, battery cell 100. Specific implementation

[0025] The utility model is further explained in combination with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0026] Reference Figures 1-5As shown, the battery body positioning device comprises: a bottom support plate 1, a right-angle support plate 2, a differential head 3, a positioning strip connecting assembly 4, a positioning strip 5 and a cell clamping assembly 6; the right-angle support plate 2 is fixedly installed on the bottom support plate 1; the differential head 3 is provided as two, and the differential head 3 is arranged on the right-angle support plate 2; the positioning strip connecting assembly 4 is connected with the right-angle support plate 2, the positioning strip connecting assembly 4 is connected with the positioning strip 5 for positioning the cell, the differential head 3 is used for adjusting the position of the positioning strip 5, and the positioning reference surface of the positioning strip 5 in contact with the cell is a plane; the cell clamping assembly 6 is provided as two in symmetry, the cell clamping assembly 6 is arranged on the bottom support plate 1, and the two cell clamping assemblies 6 are used for clamping the tab at two ends of the cell to fix the cell. By adjusting the left and right differential heads 3, the positioning strip 5 is parallel to the production line body, the differential head 3 is locked, the reference is formed, the cell 100 is positioned by the positioning strip 5, and the cell 100 is clamped by the two cell clamping assemblies 6 after positioning is completed.

[0027] Referring to Figures 1-3 As shown, the positioning strip connecting assembly 4 comprises a vertical mounting plate 41, two symmetrically arranged pivot mounting plates 42, a pivot 43, a positioning support plate 44 and a buffer assembly 45, the vertical mounting plate 41 and one right-angle surface of the right-angle support plate 2 are fixedly connected, the two symmetrically arranged pivot mounting plates 42 are arranged at the upper and lower ends of the vertical mounting plate 41 respectively, and the vertical mounting plate 41 and the two symmetrically arranged pivot mounting plates 42 form a U-shaped support structure. The two ends of the pivot 43 in the axial direction are arranged on the pivot mounting plates 42 respectively, the positioning support plate 44 and the outer wall of the pivot 43 are fixedly connected, the buffer assembly 45 is arranged on the positioning support plate 44, and the positioning strip 5 is connected with the buffer assembly 45. The pivot mounting plate 42 is provided with a bearing 421, and the end portion of the pivot 43 in the axial direction is connected with the inner ring of the bearing 421. The sensing head of the differential head 3 is in contact with the side surface of the positioning support plate 44.

[0028] Preferably, the buffer assembly 45 is provided as two, and the two buffer assemblies 45 are symmetrically arranged with the pivot 43 as the center.

[0029] In the structure, the buffer assembly 45 comprises a connecting column 451, a guide sleeve 452 and a spring 453, the guide sleeve 452 is fixedly arranged on the positioning support plate 44, one end of the connecting column 451 is fixedly connected with the positioning strip 5, and the other end of the connecting column 451 penetrates through the guide sleeve 452, the connecting column 451 and the guide sleeve 452 are in sliding connection, the spring 453 is sleeved on the connecting column 451, and the spring 453 is located between the positioning strip 5 and the positioning support plate 44. After the positioning strip 5 contacts one side of the battery cell, the spring 453 is compressed under force and also exerts a reverse force on the positioning strip 5, so that the battery cell can be positioned and deformation caused by extrusion of the battery cell is avoided.

[0030] Referring to Figure 6 As shown in the figure, the battery cell clamping assembly 6 comprises a clamping driving cylinder 61, a clamping connecting bracket 62 and a tab clamping block 63, the piston rod of the clamping driving cylinder 61 is connected with the clamping connecting bracket 62, the tab clamping block 63 is arranged on the clamping connecting bracket 62, and the clamping driving cylinder 61 can drive the tab clamping block 63 to contact the battery cell. A transition step 631 is arranged on the side of the tab clamping block 63 opposite to the battery cell, and the transition step 631 is matched with the shape of the tab of the battery cell.

[0031] In the structure, a linear guide rail one 11 is arranged on the bottom support plate 1, a sliding block one 12 is arranged on the linear guide rail one 11, a cylinder mounting plate 13 is fixedly connected with the sliding block one 12, and the clamping driving cylinder 61 is mounted on the cylinder mounting plate 13. The battery cell clamping assembly 6 further comprises a locking plate 64, and the cylinder mounting plate 13 is fixed on the bottom support plate 1 through the locking plate 64. A plurality of mounting holes 14 are arranged on the bottom support plate 1, the locking plate 64 is a right-angle plate, a waist-shaped hole 641 is arranged on one right-angle edge of the locking plate 64, the waist-shaped hole 641 and the mounting hole 14 are locked through fasteners, and the other right-angle edge of the locking plate 64 is connected with the cylinder mounting plate 13 through fasteners. Because the sizes of the battery cells 100 are different, when the battery cell clamping assembly 6 is used, in order to adapt to battery cells 100 of different widths, the position of the battery cell clamping assembly 6 can be adjusted through the structure of the movable sliding block one 12 and the linear guide rail one 11, and after the position of the battery cell clamping assembly 6 is found, the battery cell clamping assembly 6 is fixed as a whole through the locking plate 64.

[0032] In the structure, a linear guide rail two 621 is arranged on the clamping connecting bracket 62, and a sliding block two 632 is connected with the tab clamping block 63, and the sliding block two 632 and the linear guide rail two 621 are in sliding connection.

[0033] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A battery body positioning device, characterized by: The utility model relates to a battery cell positioning device, including, Bottom support plate; Right angle support plate is fixedly installed on bottom support plate; Differential head is provided with two, and differential head is provided on right angle support plate; Positioning strip connecting assembly is connected with right angle support plate, positioning strip for positioning cell is connected on positioning strip connecting assembly, differential head is used for adjusting the position of positioning strip; Cell clamping assembly is provided with two symmetrically, cell clamping assembly is provided on bottom support plate, and two cell clamping assemblies are used to clamp the pole lug of the two ends of cell and carry out the fixation of cell.

2. The battery body positioning device of claim 1, wherein: The positioning strip connecting assembly includes a vertical mounting plate, two symmetrically arranged pivot mounting plates, a pivot, a positioning support plate, and a buffer assembly. The vertical mounting plate is fixedly connected with one right angle surface of the right angle support plate. The two symmetrically arranged pivot mounting plates are respectively arranged at the upper and lower ends of the vertical mounting plate. The pivot is arranged at the two ends in the axial direction of the pivot. The positioning support plate is fixedly connected with the outer wall of the pivot. The buffer assembly is arranged on the positioning support plate. The positioning strip is connected with the buffer assembly.

3. The battery body positioning device of claim 2, wherein: The pivot mounting plate is provided with a bearing, and the end portion in the axial direction of the pivot is connected with the inner ring of the bearing.

4. The battery body positioning device of claim 3, wherein: The buffer assembly includes a connecting column, a guide sleeve, and a spring. The guide sleeve is fixedly arranged on the positioning support plate. One end of the connecting column is fixedly connected with the positioning strip, and the other end of the connecting column penetrates through the guide sleeve. The connecting column and the guide sleeve are in sliding connection. The spring is sleeved on the connecting column and located between the positioning strip and the positioning support plate.

5. The battery body positioning device of claim 2, wherein: The sensing head of the differential head is in contact with the side surface of the positioning support plate.

6. The battery body positioning device of claim 1, wherein: The cell clamping assembly includes a clamping drive cylinder, a clamping connecting bracket, and a pole lug clamping block. The piston rod of the clamping drive cylinder is connected with the clamping connecting bracket. The pole lug clamping block is arranged on the clamping connecting bracket. The clamping drive cylinder can drive the pole lug clamping block to be in contact with the cell.

7. The battery body positioning device of claim 6, wherein: The bottom support plate is provided with a linear guide rail one. The linear guide rail one is provided with a sliding block one. The sliding block one is fixedly connected with a cylinder mounting plate. The clamping drive cylinder is mounted on the cylinder mounting plate.

8. The battery body positioning device of claim 7, wherein: The clamping connecting bracket is provided with a linear guide rail two. The pole lug clamping block is connected with a sliding block two. The sliding block two and the linear guide rail two are in sliding connection.

9. The battery body positioning device of claim 8, wherein: The cell clamping assembly further includes a locking plate. The cylinder mounting plate is fixedly connected with the bottom support plate through the locking plate.

10. The battery body positioning device of claim 1, wherein: The positioning reference surface of the positioning strip in contact with the cell is a plane.