CN110640290A

CN110640290A - Lithium battery cap press welding equipment

Info

Publication number: CN110640290A
Application number: CN201910910005.0A
Authority: CN
Inventors: 王亚青
Original assignee: Datong Xincheng New Material Co Ltd
Current assignee: Datong Xincheng New Material Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-01-03

Abstract

The invention relates to the technical field of auxiliary devices for lithium battery production, in particular to a lithium battery cap press welding device which can reduce the complexity of procedures, facilitate the welding of a lithium battery cap, reduce the error rate and improve the yield; including the carousel, the fixed axle, multiunit supporting spring, the board is placed to the multiunit, the multiunit gag lever post, the multiunit stopper, the rotation axis, a pedestal, driven gear, drive chain, including a motor, an end cap, a controller, and a cover plate, the speed reducer, the transmission shaft, first conical gear, second conical gear, the axis of drive, the support frame, the cylinder, telescopic link and bonding tool, the base top is provided with two sets of fixed slots, be provided with two sets of first ball bearing in two sets of fixed slots respectively, fixed axle bottom and rotation axis bottom insert respectively and fix to two sets of first ball bearing in, the support frame is installed on the base, the cylinder is installed on the support frame, the telescopic link both ends are connected with.

Description

Lithium battery cap press welding equipment

Technical Field

The invention relates to the technical field of auxiliary devices for lithium battery production, in particular to a lithium battery cap press welding device.

Background

As is well known, a lithium battery is a battery using lithium metal or a lithium alloy as a negative electrode material and a non-aqueous electrolyte, and the lithium metal has very high environmental requirements for processing, storage and use due to the very active chemical properties of the lithium metal. Along with the development of science and technology, present lithium cell has become the mainstream, and among the current lithium cell production process, often adopt manual operation's mode to carry out the lid welding of lithium cell, the process is comparatively complicated to welding error phenomenon appears easily, leads to welding effect relatively poor, and the yield is lower.

Disclosure of Invention

In order to solve the technical problems, the invention provides the lithium battery cap press welding equipment which can reduce the complexity of the working procedure, is convenient for welding the lithium battery cap, reduces the error rate and improves the yield.

The invention relates to a lithium battery cap pressure welding device which comprises a rotary table, a fixed shaft, a plurality of groups of supporting springs, a plurality of groups of placing plates, a plurality of groups of limiting rods, a plurality of groups of limiting blocks, a rotary shaft, a base, a driven gear, a transmission chain, a motor, a speed reducer, a transmission shaft, a first bevel gear, a second bevel gear, a driving shaft, a support frame, a cylinder, a telescopic rod and a pressure welding head, wherein the fixed shaft is arranged in the central area of the bottom of the rotary table, a plurality of groups of placing grooves are uniformly arranged in the edge area of the top of the rotary table, two ends of the plurality of groups of supporting springs are respectively connected with the bottoms of the plurality of groups of placing plates and the bottoms of the plurality of groups of placing grooves, the plurality of groups of placing plates are respectively positioned in the plurality of groups of placing grooves, a, the bottom ends of a plurality of groups of limiting rods are respectively connected with a plurality of groups of limiting blocks, two groups of fixing grooves are arranged at the top of the base, two groups of first ball bearings are respectively arranged in the two groups of fixing grooves, the bottom ends of the fixing shafts and the bottom ends of the rotating shafts are respectively inserted into and fixed on the two groups of first ball bearings, fixing holes are arranged on the driven gears, the driven gears are sleeved and fixed on the fixing shafts, the transmission gears are arranged at the top of the rotating shafts, the transmission gears are in transmission connection with the driven gears through transmission chains, the motor is arranged at the input end of the speed reducer, the speed reducer is arranged at the top of the base, the two ends of the transmission shaft are respectively connected with the output end of the speed reducer and the first conical gear, the two ends of the driving shaft are respectively, the air cylinder is installed on the support frame, the two ends of the telescopic rod are respectively connected with the bottom of the air cylinder and the pressure welding head, an air pump is arranged at the top of the support frame and communicated with the air cylinder.

The lithium battery cap press welding equipment further comprises a fixing block, a plurality of groups of connecting rods and a plurality of groups of limiting rings, wherein the fixing block is arranged in the central area of the top of the rotary table, two ends of the plurality of groups of connecting rods are respectively connected with the fixing block and the plurality of groups of limiting rings, and a plurality of groups of protection pads are respectively arranged on the inner walls of the plurality of groups of limiting rings.

The lithium battery cap press welding equipment further comprises a plurality of groups of cushion pads, and the plurality of groups of cushion pads are respectively arranged on the tops of the plurality of groups of placing plates.

The lithium battery cap press welding equipment further comprises a plurality of groups of supporting rods and a plurality of groups of supporting wheels, wherein two ends of the plurality of groups of supporting rods are respectively connected with the plurality of groups of supporting wheels and the top of the base, and the plurality of groups of supporting wheels are in contact with the bottom of the rotary table.

The lithium battery cap pressure welding equipment further comprises a positioning rod and a positioning ring, wherein two ends of the positioning rod are respectively connected with the positioning ring and the top of the base, the transmission shaft penetrates through the positioning ring, and a second ball bearing is arranged between the transmission shaft and the inner wall of the positioning ring.

The lithium battery cap press welding equipment further comprises a plurality of groups of steel balls, a plurality of groups of arc-shaped grooves are formed in the inner walls of the through holes respectively, the steel balls are located in the arc-shaped grooves respectively, and the steel balls are in contact with the outer walls of the limiting rods respectively.

The lithium battery cap press welding equipment further comprises a plurality of groups of supporting legs and a plurality of groups of anti-skidding seats, wherein the top ends and the bottom ends of the plurality of groups of supporting legs are respectively connected with the bottom of the base and the tops of the plurality of groups of anti-skidding seats.

The lithium battery cap press welding equipment further comprises a plurality of groups of reinforcing rods, and two ends of each group of reinforcing rods are respectively connected with the driven gear and the fixed shaft.

Compared with the prior art, the invention has the beneficial effects that: lithium batteries which need to be subjected to cap welding are respectively placed into a plurality of groups of placing grooves, certain supporting capacity is exerted on the lithium batteries through the elasticity of a plurality of groups of supporting springs, the motor is electrified and started, the power output by the motor is reduced through a speed reducer, a transmission shaft drives a first conical gear to rotate, the first conical gear is meshed with a second conical gear, the second conical gear rotates along with the first conical gear and drives a transmission gear to rotate through a driving shaft, the transmission gear is in transmission connection with a driven gear through a transmission chain, the second conical gear drives the transmission gear to rotate for each circle, the driven gear and a rotary table can be driven through a transmission belt to rotate for one lithium battery angle, the next lithium battery is positioned in the area below a pressure welding head, the driving of the motor is stopped, an air pump is electrified and started, and the air pump indirectly controls the air cylinder to move, make cylinder drive telescopic link drive the bonding tool downstream, bonding tool and lithium cell gland department contact and weld, when bonding tool pushes down, certain pressure has to the lithium cell, make the lithium cell descend and compress multiunit supporting spring, elasticity through multiunit supporting spring makes battery and bonding tool in close contact with, thereby can conveniently weld the lithium cell block, these steps can all be realized through the mode of designing procedure is automatic, what operating personnel need do is to constantly place the lithium cell that needs to carry out the welding in empty standing groove, and take off welded lithium cell can, thereby can reduce process complexity, reduce the error rate, and the yield is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partial enlarged view of portion B of FIG. 1;

in the drawings, the reference numbers: 1. a turntable; 2. a fixed shaft; 3. a support spring; 4. placing the plate; 5. a limiting rod; 6. a limiting block; 7. a rotating shaft; 8. a base; 9. a driven gear; 10. a transmission gear; 12. a drive chain; 13. a motor; 14. a speed reducer; 15. a drive shaft; 16. a first bevel gear; 17. a second bevel gear; 18. driving a shaft; 19. a support frame; 20. a cylinder; 21. a telescopic rod; 22. pressing a welding head; 23. a first ball bearing; 24. an air pump; 25. a fixed block; 26. a connecting rod; 27. a limiting ring; 28. a protection pad; 29. a cushion pad; 30. a support bar; 31. a support wheel; 32. positioning a rod; 33. a positioning ring; 34. a second ball bearing; 35. steel balls; 36. a support leg; 37. an anti-slip seat; 38. a reinforcing rod.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 3, in the lithium battery cap press-welding device of the present invention, first, the lithium battery cap press-welding device is moved to a designated position, a plurality of sets of support legs 36 support a base 8 to a certain extent, and a plurality of sets of anti-slip seats 37 can enhance the friction between the plurality of sets of support legs 36 and a contact surface, reduce the displacement of the plurality of sets of support legs 36, improve the overall stability, when in operation, the lithium battery to be cap-welded respectively passes through a plurality of sets of limit rings 27 and is placed in a plurality of sets of placement grooves, the position of the lithium battery is limited by the plurality of sets of limit rings 27, and the wear between the lithium battery and the inner wall of the limit rings 27 can be reduced by the plurality of sets of protection pads 28, and at the same time, the lithium battery can be supported by the elasticity of the plurality of sets of support springs 3, and can be, the motor 13 is electrified and started, the power output by the motor 13 is reduced by the speed reducer 14, then the transmission shaft 15 drives the first bevel gear 16 to rotate, when the transmission shaft 15 rotates, the position of the transmission shaft 15 can be limited to a certain extent by the positioning rod 32 and the positioning ring 33, because the first bevel gear 16 is meshed with the second bevel gear 17, the second bevel gear 17 rotates along with the first bevel gear 16, and the transmission shaft 18 drives the transmission gear 10 to rotate, the transmission gear 10 is in transmission connection with the driven gear 9 through the transmission chain 12, and the second bevel gear 17 drives the transmission gear 10 to rotate once through one circle, the transmission belt can drive the driven gear 9 and the turntable 1 to rotate by one angle of one lithium battery, so that the next lithium battery is located in the area below the pressure welding head 22, when the turntable 1 rotates, the supporting rod 30 and the supporting wheel 31 can play a certain supporting role for the turntable 1, at this moment, the driving of the motor 13 is stopped, the air pump 24 is powered on and started, the air cylinder 20 is indirectly controlled to move through the air pump 24, the air cylinder 20 drives the telescopic rod 21 to drive the pressure welding head 22 to move downwards, the pressure welding head 22 is contacted with a lithium battery gland and welded, when the pressure welding head 22 is pressed downwards, certain pressure is provided for the lithium battery, the lithium battery is lowered and compresses a plurality of groups of supporting springs 3, the battery is tightly contacted with the pressure welding head 22 through the elasticity of the plurality of groups of supporting springs 3, so that the lithium battery cap can be conveniently welded, the steps can be automatically realized through a program design mode, all that an operator needs to do is to continuously place the lithium battery which needs to be welded in an empty placing groove and take down the welded lithium battery, thereby the process complexity can be reduced, the error rate is reduced, the yield is improved, when the plurality of groups of supporting springs 3 are compressed, can conveniently inject the moving direction of multiunit backup pad through reciprocating of multiunit gag lever post 5 in multiunit through-hole department to when multiunit gag lever post 5 reciprocated in multiunit through-hole department, can reduce the frictional force between multiunit spacing ring 27 and the multiunit through-hole inner wall through multiunit steel ball 35, when driven gear 9 drives fixed axle 2 and rotates, can strengthen the frictional force between driven gear 9 and fixed axle 2 through multiunit stiffener 38.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A lithium battery cap press welding device is characterized by comprising a rotary table (1), a fixed shaft (2), a plurality of groups of supporting springs (3), a plurality of groups of placing plates (4), a plurality of groups of limiting rods (5), a plurality of groups of limiting blocks (6), a rotating shaft (7), a base (8), a driven gear (9), a transmission gear (10), a transmission chain (12), a motor (13), a speed reducer (14), a transmission shaft (15), a first bevel gear (16), a second bevel gear (17), a driving shaft (18), a supporting frame (19), a cylinder (20), a telescopic rod (21) and a press welding head (22), wherein the fixed shaft (2) is arranged in the central area of the bottom of the rotary table (1), a plurality of groups of placing grooves are uniformly arranged in the edge area of the top of the rotary table (1), and two ends of the plurality of groups of supporting springs (3) are respectively connected with the bottoms, the multiple groups of placing plates (4) are respectively positioned in multiple groups of placing grooves, multiple groups of through holes are respectively arranged in the edge area of the bottom of the rotary table (1), the multiple groups of through holes are respectively communicated with the multiple groups of placing grooves, the tops of the multiple groups of limiting rods (5) respectively penetrate through the multiple groups of through holes and are respectively connected with the multiple groups of placing plates (4), the bottoms of the multiple groups of limiting rods (5) are respectively connected with the multiple groups of limiting blocks (6), the top of the base (8) is provided with two groups of fixing grooves, two groups of first ball bearings (23) are respectively arranged in the two groups of fixing grooves, the bottom of the fixed shaft (2) and the bottom of the rotary shaft (7) are respectively inserted into and fixed into the two groups of first ball bearings (23), the driven gear (9) is provided with a fixing hole, the driven gear (9) is sleeved and fixed on the fixed, and the transmission gear (10) is in transmission connection with the driven gear (9) through a transmission chain (12), the motor (13) is arranged at the input end of the speed reducer (14), the speed reducer (14) is arranged at the top of the base (8), two ends of the transmission shaft (15) are respectively connected with the output end of the speed reducer (14) and the first bevel gear (16), two ends of the driving shaft (18) are respectively connected with the second bevel gear (17) and the transmission gear (10), the first bevel gear (16) is meshed with the second bevel gear (17), the supporting frame (19) is arranged on the base (8), the cylinder (20) is arranged on the support frame (19), two ends of the telescopic rod (21) are respectively connected with the bottom of the cylinder (20) and the pressure welding head (22), an air pump (24) is arranged at the top of the support frame (19), and the air pump (24) is communicated with the air cylinder (20).

2. The lithium battery cap pressure welding device according to claim 1, further comprising a fixing block (25), a plurality of sets of connecting rods (26) and a plurality of sets of limiting rings (27), wherein the fixing block (25) is installed in the central area of the top of the rotary table (1), two ends of the plurality of sets of connecting rods (26) are respectively connected with the fixing block (25) and the plurality of sets of limiting rings (27), and a plurality of sets of protective pads (28) are respectively arranged on the inner walls of the plurality of sets of limiting rings (27).

3. The lithium battery cap press-welding device according to claim 2, further comprising a plurality of sets of cushion pads (29), wherein the plurality of sets of cushion pads (29) are respectively mounted on top of the plurality of sets of placing plates (4).

4. The lithium battery cap press welding equipment according to claim 3, further comprising a plurality of sets of support rods (30) and a plurality of sets of support wheels (31), wherein two ends of the plurality of sets of support rods (30) are respectively connected with the plurality of sets of support wheels (31) and the top of the base (8), and the plurality of sets of support wheels (31) are in contact with the bottom of the turntable (1).

5. The lithium battery cap pressure welding device according to claim 4, further comprising a positioning rod (32) and a positioning ring (33), wherein two ends of the positioning rod (32) are respectively connected with the positioning ring (33) and the top of the base (8), the transmission shaft (15) penetrates through the positioning ring (33), and a second ball bearing (34) is arranged between the transmission shaft (15) and the inner wall of the positioning ring (33).

6. The lithium battery cap press-welding equipment according to claim 5, further comprising a plurality of sets of steel balls (35), wherein a plurality of sets of arc-shaped grooves are respectively formed on the inner walls of the plurality of sets of through holes, the plurality of sets of steel balls (35) are respectively located in the plurality of sets of arc-shaped grooves, and the plurality of sets of steel balls (35) are respectively in contact with the outer walls of the plurality of sets of limiting rods (5).

7. The lithium battery cap pressure welding device according to claim 6, further comprising a plurality of groups of support legs (36) and a plurality of groups of anti-slip seats (37), wherein the top ends and the bottom ends of the plurality of groups of support legs (36) are respectively connected with the bottom of the base (8) and the top of the plurality of groups of anti-slip seats (37).

8. The lithium battery cap press-welding device according to claim 7, further comprising a plurality of groups of reinforcing rods (38), wherein two ends of the groups of reinforcing rods (38) are respectively connected with the driven gear (9) and the fixed shaft (2).