Linear motor tab welding structure

Abstract

The utility model relates to a linear motor pole lug welding structure which comprises a fixing base, a linear motor, a linear motor installation base, a welding head fixing base, a welding head assembly, a pressure sensor, a pressure sensor fixing block, a driving plate, a first guide rail and a second guide rail. The linear motor, the first guide rail and the second guide rail are mounted on the linear motor mounting seat, the welding head assembly is mounted at the lower end of the welding head fixing seat, the pressure sensor fixing block is fixedly arranged on the driving plate, and the pressure sensor is mounted on the pressure sensor fixing block and connected with the upper end of the welding head fixing seat. The linear motor drives the driving plate to move along the first guide rail and drives the welding head fixing base to move along the second guide rail. According to the linear motor tab welding structure, the welding depth is accurately controlled, the welding effect is greatly improved, the welding service life is greatly prolonged, and the material loss time and the labor cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production technical field especially is related to a linear motor pole lug welding structure. BACKGROUND

[0002] Lithium battery is with lithium metal or lithium alloy as anode material, uses non - water electrolyte solution battery, and lithium battery includes cover plate structure, and the cover plate structure includes positive pole column, conducting sheet, top cover sheet and plastic cover plate, conducting sheet is connected with positive pole column, and positive pole column is assembled with top cover sheet insulation, and plastic cover plate is connected with top cover sheet, in the process of producing lithium battery, need to weld lithium battery core with pole lug, but in the process of production, the existing is through servo motor driving force to pole lug and weld, this structure ball screw has the gap, does not reach the precision requirement, leads to the service life of welding head welding seat reduction. SUMMARY

[0003] The utility model discloses a linear motor pole lug welding structure to solve the above technical problem, greatly improve the welding effect and welding life, reduce the material loss time and artificial cost.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A linear motor pole lug welding structure, including fixed seat, linear motor, linear motor mounting seat, welding head fixed seat, welding head assembly, pressure sensor, pressure sensor fixed block, drive board, first guide rail and second guide rail, the linear motor mounting seat is fixed on the fixed seat, the linear motor, the first guide rail and the second guide rail are installed on the linear motor mounting seat, and the first guide rail is installed on the inner side of the linear motor mounting seat, the second guide rail is installed on the outer side of the linear motor mounting seat, the first guide rail is aligned with the second guide rail, the welding head assembly is installed on the lower end of the welding head fixed seat, the pressure sensor fixed block is fixed on the drive board, the pressure sensor is installed on the pressure sensor fixed block, the pressure sensor is connected with the upper end of the welding head fixed seat, the linear motor drives the drive board to move along the first guide rail, drives the welding head fixed seat to move along the second guide rail.

[0006] As a preferred technical scheme, it further includes a grating ruler, which is installed on the welding head fixed seat.

[0007] The linear motor pole lug welding structure improves the welding precision by driving the welding head assembly to move through the linear motor, and accurately controls the welding depth through the pressure sensor and the grating ruler, greatly improves the welding effect and welding life, and reduces the material loss time and labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The utility model relates to the structure diagram of linear motor pole lug welding structure. DETAILED DESCRIPTION

[0009] In order to make the utility model purposes, technical scheme and advantages more clearly, following combining with the drawings and example, the utility model is further detailedly explained. It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0010] As Figure 1 The utility model discloses a linear motor pole lug welding structure, including fixed seat 1, linear motor 3, linear motor mounting seat 2, welding head fixed seat 5, welding head subassembly 6, pressure sensor 8, pressure sensor fixed block 7, drive board 4, first guide 9, second guide 10 and grating ruler 11, linear motor mounting seat 2 is solid and set up on fixed seat 1, and linear motor 3, first guide 9 and second guide 10 are installed on linear motor mounting seat 2, and first guide 9 is installed on the inner side of linear motor mounting seat 2, and second guide 10 is installed on the outer side of linear motor mounting seat 2, and first guide 9 is aligned with second guide 10, and welding head subassembly 6 is installed on the lower end of welding head fixed seat 5, and pressure sensor fixed block 7 is solid and set up on drive board 4, and pressure sensor 8 is installed on pressure sensor fixed block 7, and pressure sensor 8 is connected with the upper end of welding head fixed seat 5, and linear motor 3 drives drive board 4 to move along first guide 9, drives welding head fixed seat 5 to move along second guide 10, thereby drives welding head subassembly 6 to press down and weld, and pressure sensor 8 senses the pressure of welding head subassembly 6, avoids that welding head subassembly 6 breaks down due to excessive force, and grating ruler 11 is installed on welding head fixed seat 5, and the precision of this grating ruler 11 is 0.5um, is accurately fed back to linear motor position, and the closed loop control of grating ruler accurately control welding depth.

[0011] The above-described embodiments are only preferred examples of the utility model, and do not limit the implementation range of the utility model, so equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application range should be included in the utility model patent application range.

Claims

1. A linear motor tab welding structure, characterized by, The application relates to a welding head driving device, which comprises a fixing base, a linear motor, a linear motor mounting base, a welding head fixing base, a welding head assembly, a pressure sensor, a pressure sensor fixing block, a driving plate, a first guide rail and a second guide rail, the linear motor mounting base is fixedly arranged on the fixing base, the linear motor, the first guide rail and the second guide rail are arranged on the linear motor mounting base, the first guide rail is arranged on the inner side of the linear motor mounting base, the second guide rail is arranged on the outer side of the linear motor mounting base, the first guide rail is aligned with the second guide rail, the welding head assembly is arranged on the lower end of the welding head fixing base, the pressure sensor fixing block is fixedly arranged on the driving plate, the pressure sensor is arranged on the pressure sensor fixing block, the pressure sensor is connected with the upper end of the welding head fixing base, and the linear motor drives the driving plate to move along the first guide rail, thereby driving the welding head fixing base to move along the second guide rail.

2. The linear motor tab welding structure according to claim 1, characterized by, The application further comprises an optical grating ruler arranged on the welding head fixing base.

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