Cap pressure welding device for lithium battery

Abstract

The utility model discloses a cap pressure welding device for a lithium battery, and relates to the technical field of pressure welding devices, and the cap pressure welding device for the lithium battery comprises a working table, a placing frame is rotatably arranged on the top surface of the working table, a shifting plate is arranged in the placing frame in a sliding mode, an ejector rod is fixedly arranged on the top surface of the shifting plate, the ejector rod is movably inserted in the placing frame, and the ejector rod is fixedly arranged on the top surface of the shifting plate. A groove is formed in the containing frame, a second spring is fixedly connected between the groove and the shifting plate, an inclined table is fixedly arranged on the top face of the workbench, a movable groove is formed in the containing frame, the shifting plate is arranged in the movable groove in a sliding mode, and when the containing frame rotates to make the shifting plate make contact with the inclined table, the shifting plate is promoted to drive an ejector rod to ascend and stretch the second spring, and the second spring is driven to rotate. And therefore, a worker can conveniently grasp the middle section of the lithium battery and take the lithium battery out of the placement groove, the situation that the worker is scalded due to the fact that the worker directly drags the lithium battery out of the placement groove and touches a welding part is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure welding devices, in particular to a cap pressure welding device for lithium batteries. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the extremely active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream.

[0003] In the production process of lithium batteries, it is necessary to weld the lithium batteries after liquid injection and combine them with caps. However, after the existing pressure welding device welds the lithium battery and the cap, the lithium battery is generally pulled out directly. However, after welding, the lithium battery and the cap are in a hot state. Pulling it out directly will touch the welding point, which will scald the staff and cause safety hazards. In view of the above problems, the inventor proposes a cap pressure welding device for lithium batteries to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the lithium battery is generally pulled out directly, but the space between the lithium battery and the cap is in a hot state after welding, and directly pulling it out will touch the welding position, thereby scalding the staff; the purpose of the utility model is to provide a cap pressure welding device for lithium batteries.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a cap welding device for lithium batteries, comprising a workbench, a placement frame is rotatably provided on the top surface of the workbench, a paddle is slidably provided in the placement frame, a push rod is fixedly provided on the top surface of the paddle, the push rod is movably inserted in the placement frame, a groove is provided in the placement frame, a second spring is fixedly connected between the groove and the paddle, an inclined platform is fixedly provided on the top surface of the workbench, a movable groove is provided in the placement frame, the paddle is slidably provided in the movable groove, firstly, the lithium battery and the cap are placed in the placement groove directly below the pressure welding head, so that the ball contacts the surface of the lithium battery and rolls in the arc plate, and at the same time The insertion rod moves in the placement rack and squeezes the first spring. Under the action of the first spring, the lithium battery is clamped to facilitate the subsequent pressure welding process, so that lithium batteries of different sizes can be clamped and fixed. Then the cylinder is turned on, and the pressure welding device body is turned on at the same time, so that the pressure welding device body is pressed down, and the pressure welding head can weld the lithium battery and the cap. When the placement rack rotates and the paddle plate contacts the ramp, the paddle plate drives the push rod to rise and squeezes the second spring, so that the lithium battery after pressure welding is lifted by the push rod, which makes it convenient for the staff to grab the middle section of the lithium battery and take it out of the placement slot, thereby avoiding directly pulling it out and touching the welding part, scalding the staff, and reducing safety hazards.

[0006] Preferably, a placement groove is provided in the placement rack, an arc-shaped plate is provided in the placement groove, a ball is rotatably provided in the arc-shaped plate, an insertion rod is fixedly provided on the outer surface of the arc-shaped plate, the insertion rod is movably inserted in the placement rack, a slot is provided in the placement rack, a first spring is fixedly connected between the slot and the arc-shaped plate, and the first spring is movably sleeved on the outer surface of the insertion rod.

[0007] Preferably, a rotating shaft is rotatably provided in the workbench, and the rotating shaft is fixedly provided at the bottom end of the placement rack. A motor is installed in the workbench, and a half-face gear is fixedly provided on the output end of the motor, and a gear ring is fixedly provided on the outer surface of the rotating shaft, and the half-face gear can mesh with the gear ring. A slide groove is opened in the workbench, and a fixing rod is fixedly provided on the bottom surface of the placement rack, and the fixing rod is slidably provided in the slide groove.

[0008] Preferably, a support frame is fixedly provided on the top surface of the workbench, a cylinder is installed on the top surface of the support frame, a pressure welding device body is fixedly provided on the output end of the cylinder, and a pressure welding head is fixedly provided on the bottom surface of the pressure welding device body.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, when the placement rack rotates and the paddle plate contacts the inclined platform, the paddle plate drives the push rod to rise and stretches the second spring, so that the lithium battery after pressure welding is lifted by the push rod, which makes it convenient for the staff to grab the middle section of the lithium battery and take it out from the placement slot, thereby avoiding directly pulling it out and touching the welding part, scalding the staff, and reducing safety hazards;

[0011] 2. In the utility model, the lithium battery is placed in the placement groove, so that the ball contacts the surface of the lithium battery and rolls in the arc plate. At the same time, the insertion rod is moved in the placement frame and the first spring is squeezed. Under the action of the first spring, the lithium battery is clamped, which is convenient for subsequent pressure welding processing, and lithium batteries of different sizes can be clamped and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2It is a partial cross-sectional structural schematic diagram of the workbench of the utility model;

[0015] Figure 3 It is a partial cross-sectional structural schematic diagram of the placement rack of the utility model.

[0016] In the figure: 1. workbench; 101. slide; 11. motor; 12. half-gear; 13. rotating shaft; 14. gear ring; 15. inclined table; 2. support frame; 21. cylinder; 22. pressure welding device body; 23. pressure welding head; 3. placement frame; 301. placement slot; 302. slot; 303. movable slot; 304. groove; 31. arc plate; 32. ball bearing; 33. insertion rod; 34. first spring; 35. paddle; 36. push rod; 37. second spring; 38. fixing rod. DETAILED DESCRIPTION

[0017] 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.

[0018] Example: Figure 1-3 As shown, the utility model provides a cap welding device for lithium batteries, including a workbench 1, a placement rack 3 is rotatably provided on the top surface of the workbench 1, a dial plate 35 is slidably provided in the placement rack 3, a top surface of the dial plate 35 is fixedly provided with a push rod 36, the push rod 36 is movably inserted in the placement rack 3, a groove 304 is provided in the placement rack 3, a second spring 37 is fixedly connected between the groove 304 and the dial plate 35, an inclined platform 15 is fixedly provided on the top surface of the workbench 1, a movable groove 303 is provided in the placement rack 3, and the dial plate 35 is slidably provided in the movable groove 303. When the placement rack 3 rotates and the dial plate 35 contacts the inclined platform 15, the dial plate 35 drives the push rod 36 to rise and squeezes the second spring 37, so that the lithium battery after pressure welding is lifted by the push rod 36, so as to facilitate the staff to grab the middle section of the lithium battery and take it out from the placement groove 301, so as to avoid directly pulling it out and touching the welding part, scalding the staff, thereby reducing safety hazards.

[0019] A placement groove 301 is provided in the placement rack 3, an arc plate 31 is provided in the placement groove 301, a ball 32 is rotatably provided in the arc plate 31, an insertion rod 33 is fixedly provided on the outer surface of the arc plate 31, the insertion rod 33 is movably inserted in the placement rack 3, a slot 302 is provided in the placement rack 3, a first spring 34 is fixedly connected between the slot 302 and the arc plate 31, and the first spring 34 is movably sleeved on the outer surface of the insertion rod 33.

[0020] By adopting the above technical solution, the lithium battery is placed in the placement groove 301, so that the ball 32 contacts the surface of the lithium battery and rolls in the arc plate 31, and at the same time, the insertion rod 33 moves in the placement frame 3 and squeezes the first spring 34. Under the action of the first spring 34, the lithium battery is clamped, which is convenient for subsequent pressure welding processing, and lithium batteries of different sizes can be clamped and fixed.

[0021] A rotating shaft 13 is rotatably provided in the workbench 1, and the rotating shaft 13 is fixedly provided at the bottom end of the placement rack 3. A motor 11 is installed in the workbench 1, and a half-face gear 12 is fixedly provided on the output end of the motor 11. A gear ring 14 is fixedly provided on the outer surface of the rotating shaft 13, and the half-face gear 12 can mesh with the gear ring 14. A slide groove 101 is opened in the workbench 1, and a fixing rod 38 is fixedly provided on the bottom surface of the placement rack 3, and the fixing rod 38 is slidably provided in the slide groove 101.

[0022] By adopting the above technical solution, the motor 11 is turned on to drive the half-face gear 12 to rotate. When the half-face gear 12 is engaged with the gear ring 14, the rotating shaft 13 drives the placement rack 3 to rotate intermittently, which can continuously weld the lithium battery and the cap, thereby improving the processing efficiency.

[0023] A support frame 2 is fixedly provided on the top surface of the workbench 1 , a cylinder 21 is installed on the top surface of the support frame 2 , a pressure welding device body 22 is fixedly provided on the output end of the cylinder 21 , and a pressure welding head 23 is fixedly provided on the bottom surface of the pressure welding device body 22 .

[0024] By adopting the above technical solution, the cylinder 21 is turned on and the pressure welding device body 22 is turned on at the same time, so that the pressure welding device body 22 is pressed down, and the pressure welding head 23 can weld the lithium battery and the cap.

[0025] Working principle: first, place the lithium battery and the cap in the placement groove 301 directly below the pressure welding head 23, so that the ball 32 contacts the surface of the lithium battery and rolls in the arc plate 31, and at the same time, the insertion rod 33 moves in the placement frame 3 and squeezes the first spring 34. Under the action of the first spring 34, the lithium battery is clamped to facilitate the subsequent pressure welding process, so that lithium batteries of different sizes can be clamped and fixed. Then, the cylinder 21 is turned on, and the pressure welding device body 22 is turned on at the same time, so that the pressure welding device body 22 is pressed down, and the pressure welding head 23 can weld the lithium battery and the cap. When the placement frame 3 rotates and the paddle plate 35 contacts the inclined platform 15, the paddle plate 35 drives the push rod 36 to rise and stretch the second spring 37, so that the lithium battery after pressure welding is lifted by the push rod 36, so that it is convenient for the staff to grab the middle section of the lithium battery and take it out from the placement groove 301, so as to avoid directly pulling it out and touching the welding part, scalding the staff, thereby reducing safety hazards.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A cap welding device for lithium batteries, comprising a workbench (1), characterized in that: A placement rack (3) is rotatably provided on the top surface of the workbench (1), a shift plate (35) is slidably provided inside the placement rack (3), a push rod (36) is fixedly provided on the top surface of the shift plate (35), the push rod (36) is movably inserted in the placement rack (3), a groove (304) is provided in the placement rack (3), a second spring (37) is fixedly connected between the groove (304) and the shift plate (35), and an inclined platform (15) is fixedly provided on the top surface of the workbench (1).

2. A cap welding device for lithium batteries as claimed in claim 1, characterized in that: A movable groove (303) is provided in the placement rack (3), and the shifting plate (35) is slidably arranged in the movable groove (303).

3. A cap welding device for lithium batteries as claimed in claim 1, characterized in that: A placement groove (301) is provided in the placement rack (3), an arc-shaped plate (31) is provided in the placement groove (301), and a ball (32) is rotatably provided in the arc-shaped plate (31).

4. A cap welding device for lithium batteries as claimed in claim 3, characterized in that: An insertion rod (33) is fixedly provided on the outer surface of the arc-shaped plate (31), and the insertion rod (33) is movably inserted in the placement frame (3). A slot (302) is provided in the placement frame (3), and a first spring (34) is fixedly connected between the slot (302) and the arc-shaped plate (31), and the first spring (34) is movably sleeved on the outer surface of the insertion rod (33).

5. A cap welding device for lithium batteries as claimed in claim 1, characterized in that: A rotating shaft (13) is rotatably disposed inside the workbench (1), and the rotating shaft (13) is fixedly disposed at the bottom end of the placement frame (3).

6. A cap welding device for lithium batteries as claimed in claim 5, characterized in that: A motor (11) is installed in the workbench (1), a half-face gear (12) is fixedly sleeved at the output end of the motor (11), a gear ring (14) is fixedly sleeved on the outer surface of the rotating shaft (13), and the half-face gear (12) can mesh with the gear ring (14).

7. A cap welding device for lithium batteries as claimed in claim 1, characterized in that: A slide groove (101) is provided in the workbench (1), and a fixing rod (38) is fixedly provided on the bottom surface of the placement rack (3), and the fixing rod (38) is slidably arranged in the slide groove (101).

8. A cap welding device for lithium batteries as claimed in claim 1, characterized in that: A support frame (2) is fixedly provided on the top surface of the workbench (1), a cylinder (21) is installed on the top surface of the support frame (2), a pressure welding device body (22) is fixedly provided on the output end of the cylinder (21), and a pressure welding head (23) is fixedly provided on the bottom surface of the pressure welding device body (22).

Images