Electric welding machine for lithium battery processing

Abstract

The utility model discloses an electric welding machine for lithium battery processing, and relates to the field of lithium battery welding. An electric welding machine for lithium battery machining comprises a base and further comprises a light shield integrally formed with the base. The sealing cover is connected to the light shield; the laser welding mechanism is arranged in the light shield and is used for welding the lithium battery placed on the base; the vacuum pump is fixedly mounted on the light shield; when the laser welding mechanism is used for welding, light beams generated during welding can be shielded through the light shielding cover, so that eyes of an operator are protected, the eyes are prevented from being damaged by the light beams generated during welding, and the sealing cavity is vacuumized, so that the eyes of the operator cannot be damaged under the vacuum condition. And gas molecules are rare in the welding process, so that the porosity in the welding point can be reduced, and the welding quality of the welding point of the lithium battery is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery welding, and specifically relates to an electric welding machine for lithium battery processing. Background Art

[0002] With the development of science and technology, lithium batteries have become mainstream. They can be found in many daily electrical appliances. In order to adapt to the working requirements and structures of different electrical appliances, the shapes of lithium batteries have also become diverse. In the production and processing of lithium batteries, welding equipment is usually required to weld lithium batteries.

[0003] For example, the utility model patent with patent application number 202121338046.6 and name of a lithium battery welding device discloses a lithium battery welding device, including a body, a mounting plate installed on the body, a sliding rod slidably connected to the mounting plate, an operating panel slidably connected to the sliding rod, a laser welding head arranged on the operating panel, a lithium battery body placed on the body, and the laser welding head located above the lithium battery body. In the process of laser welding of lithium batteries, the utility model inhales the harmful gases generated by the laser welding of the lithium battery body by the laser welding head into the inside of the air intake pipe and the installation box through transmission, and finally discharges them from the circular groove on the operating box. When the harmful gases pass through the installation box, the harmful gases pass through the activated carbon plate on the adsorption plate, and the harmful gases and substances in the inhaled gas are adsorbed and purified by the activated carbon plate, thereby forming a harmful gas treatment mechanism during laser welding to avoid direct discharge of harmful gases into the air and causing environmental pollution;

[0004] The above patent also has the following defects. Since the lithium battery is not welded in a vacuum-sealed state, when the lithium battery is welded by laser welding, the denser molecules in the air under normal atmospheric pressure may increase the porosity inside the welding point, thereby reducing the quality of the lithium battery welding process. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an electric welding machine for lithium battery processing which can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] An electric welder for processing lithium batteries comprises a base, and also includes: a light shield integrally formed with the base; a sealing cover connected to the light shield; a laser welding mechanism arranged in the light shield and used for welding the lithium batteries placed on the base; a vacuum pump fixedly mounted on the light shield; a pipeline, one end of which is fixedly connected to the input end of the vacuum pump and the other end is fixedly connected to the sealing cover and communicated with the light shield; a vacuum pressure gauge arranged on the sealing cover, wherein the monitoring end of the vacuum pressure gauge penetrates the sealing cover and extends into the light shield, and a one-way valve is arranged on the pipeline.

[0008] In order to achieve the effect of increasing the sealing performance of the connection between the sealing cover and the light shield, a support frame is fixedly connected to the sealing cover, a sealing gasket is fixedly installed on the outer side of the support frame, and the sealing gasket fits the inner wall of the light shield.

[0009] In order to drive the sealing cover to move, preferably, a connecting frame is fixedly connected to the light shield, an electric telescopic rod is fixedly installed on the connecting frame, and the sealing cover is fixedly connected to the output end of the electric telescopic rod.

[0010] Preferably, the laser welding mechanism comprises a support seat slidably connected in the light shield, a cylinder is fixedly mounted on the support seat, a connecting rod is fixedly connected to the output end of the cylinder, and a laser welding head is fixedly mounted on the connecting rod.

[0011] In order to be able to adjust the position of the laser welding head, it further includes a screw rod rotatably connected to the light shield, the screw rod passes through the light shield and a handle is fixedly installed at one end, a guide rod is fixedly connected to the light shield, the support seat is slidably connected to the guide rod, and is threadedly connected to the screw rod.

[0012] In order to facilitate the staff to observe the situation inside the light shield, preferably, the sealing cover is transparent.

[0013] In order to clamp and fix the lithium battery to be welded, preferably, hydraulic telescopic rods are symmetrically fixedly installed on the inner walls of both sides of the light shield, and the output ends of the hydraulic telescopic rods are fixedly connected to fixed plates, and protective pads are fixedly installed on the fixed plates.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0015] The utility model, when a laser welding mechanism is used for welding, can shield the light beam generated during welding through the light shield, thereby protecting the eyes of the operator and preventing the light beam generated during welding from causing damage to the eyes. In addition, by evacuating the sealed cavity to a negative vacuum, the gas molecules are scarce during welding under vacuum conditions, thereby reducing the porosity inside the welding point and improving the welding quality of the lithium battery welding point. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 It is a structural schematic diagram of the laser welding mechanism of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the utility model;

[0020] Figure 5 It is a structural schematic diagram of a fixing plate and a protective pad of the utility model.

[0021] In the figure: 1. base; 101. light shield; 102. connecting frame; 2. electric telescopic rod; 201. sealing cover; 3. hydraulic telescopic rod; 301. fixing plate; 302. protective pad; 4. screw rod; 401. guide rod; 402. handle; 403. support seat; 404. cylinder; 405. connecting rod; 406. laser welding head; 5. vacuum pump; 501. pipeline; 502. vacuum pressure gauge; 503. support frame; 504. sealing pad. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0023] Embodiment 1:

[0024] Reference Figure 1 , Figure 2 and Figure 4A lithium battery processing electric welding machine comprises a base 1, and also comprises: a light shield 101 integrally formed with the base 1; a sealing cover 201 connected to the light shield 101; a laser welding mechanism arranged in the light shield 101 and used for welding the lithium battery placed on the base 1; a vacuum pump 5 fixedly mounted on the light shield 101; a pipeline 501, one end of which is fixedly connected to the input end of the vacuum pump 5, and the other end is fixedly connected to the sealing cover 201 and communicated with the light shield 101; a vacuum pressure gauge 502 is arranged on the sealing cover 201, wherein the monitoring end of the vacuum pressure gauge 502 penetrates the sealing cover 201 and extends into the light shield 101, and a one-way valve is arranged on the pipeline 501.

[0025] A support frame 503 is fixedly connected to the sealing cover 201 , and a sealing gasket 504 is fixedly installed on the outer side of the supporting frame 503 . The sealing gasket 504 fits with the inner wall of the light shield 101 .

[0026] The light shield 101 is fixedly connected to a connecting frame 102 , the connecting frame 102 is fixedly mounted with an electric telescopic rod 2 , and the sealing cover 201 is fixedly connected to an output end of the electric telescopic rod 2 .

[0027] When the lithium battery to be welded is placed on the base 1 and welded by the laser welding mechanism, the light beam generated during welding can be shielded by the light shielding hood 101, thereby protecting the operator's eyes and preventing the light beam generated during welding from causing damage to the eyes. Then the electric telescopic rod 2 is started, and the electric telescopic rod 2 pushes the sealing cover 201 to move downward until the sealing cover 201 fits with the light shielding hood 101, and then the light shielding hood 101 forms a sealed cavity inside with the cooperation of the sealing cover 201, and then the vacuum pump 5 is started, and the vacuum pump 5 extracts the air in the sealed cavity through the pipeline 501. At this time, the change of the negative pressure value inside the sealed cavity can be observed through the vacuum pressure gauge 502 until the negative pressure value inside the sealed cavity reaches the required standard, and then the vacuum pump 5 is turned off, so that under vacuum conditions, the gas molecules are scarce during the welding process, thereby reducing the porosity inside the welding point and improving the welding quality of the lithium battery welding point.

[0028] When the sealing cover 201 is in contact with the light shield 101, the support frame 503 inserted into the light shield 101 squeezes the sealing gasket 504 to fit tightly with the inner wall of the light shield 101, thereby increasing the sealing performance of the connection between the sealing cover 201 and the light shield 101, thereby helping the vacuum pump 5 to better draw a negative vacuum in the sealing cavity.

[0029] It should be additionally explained that the pipe 501 is a stretchable and shrinkable hose, so the pipe 501 will not interfere with the up and down movement of the sealing cover 201.

[0030] Embodiment 2:

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 , an electric welding machine for lithium battery processing, is basically the same as Example 1, and further, the laser welding mechanism includes a support base 403 slidably connected in the light shield 101, a cylinder 404 is fixedly installed on the support base 403, a connecting rod 405 is fixedly connected to the output end of the cylinder 404, and a laser welding head 406 is fixedly installed on the connecting rod 405.

[0032] When welding a lithium battery, first place the lithium battery to be welded into the light shield 101, and then manually adjust the position of the lithium battery in the light shield 101 so that the laser welding head 406 corresponds to the top of the point on the lithium battery to be welded, and then start the cylinder 404, which pushes the laser welding head 406 downward through the connecting rod 405 until the laser welding head 406 contacts the point on the lithium battery to be welded, so that the point on the lithium battery to be welded can be welded.

[0033] Hydraulic telescopic rods 3 are symmetrically fixedly installed on the inner walls of both sides of the light shield 101 . The output ends of the hydraulic telescopic rods 3 are fixedly connected to fixed plates 301 , and protective pads 302 are fixedly installed on the fixed plates 301 .

[0034] Before welding the lithium battery, first place the lithium battery to be welded in the light shield 101 and between the two fixing plates 301, then start the hydraulic telescopic rod 3, which pushes the two fixing plates 301 to move toward each other synchronously until the two fixing plates 301 respectively abut against the two sides of the lithium battery, thereby clamping and fixing the lithium battery, preventing the lithium battery from being displaced during welding, thereby affecting the welding quality;

[0035] When the two fixing plates 301 are respectively against the two sides of the lithium battery, the protective pad 302 fits against the surface of the lithium battery (it should be noted that the protective pad 302 is made of latex pad with good elasticity), thereby protecting the lithium battery and preventing the surface of the lithium battery from being scratched when the lithium battery is rigidly clamped.

[0036] Embodiment 3:

[0037] Reference Figure 1 , Figure 3 , an electric welding machine for lithium battery processing, is basically the same as Example 1, and further includes a screw rod 4 rotatably connected to the light shield 101, and the screw rod 4 passes through the light shield 101 and is fixedly installed with a handle 402 at one end, a guide rod 401 is fixedly connected to the light shield 101, and a support seat 403 is slidably connected to the guide rod 401 and is threadedly connected to the screw rod 4.

[0038] The sealing cover 201 is transparent.

[0039] During welding, the staff can drive the screw rod 4 to rotate through the handle 402, so that the rotating screw rod 4 drives the support seat 403 to move under the limiting guidance of the guide rod 401, and at the same time, the support seat 403 drives the laser welding head 406 to move synchronously, thereby achieving the position adjustment of the laser welding head 406, so as to facilitate welding of different positions of the lithium battery, thereby improving the practicality of the equipment, and then through the transparent sealing cover 201, it is convenient for the staff to observe the position of the laser welding head 406.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A lithium battery processing electric welding machine, comprising a base (1), characterized in that: Also includes: A light shield (101) formed integrally with the base (1); A sealing cover (201) connected to the light shield (101); A laser welding mechanism, arranged in the light shield (101) and used for welding a lithium battery placed on the base (1); A vacuum pump (5) fixedly mounted on the light shield (101); A pipeline (501), one end of which is fixedly connected to the input end of the vacuum pump (5), and the other end of which is fixedly connected to the sealing cover (201) and is connected to the light shield (101); A vacuum pressure gauge (502) is provided on the sealing cover (201). The monitoring end of the vacuum pressure gauge (502) penetrates the sealing cover (201) and extends into the light shield (101), and a one-way valve is provided on the pipeline (501).

2. The electric welding machine for lithium battery processing according to claim 1, characterized in that: The sealing cover (201) is fixedly connected to a support frame (503), and a sealing gasket (504) is fixedly installed on the outer side of the support frame (503), and the sealing gasket (504) is in contact with the inner wall of the light shield (101).

3. The electric welding machine for lithium battery processing according to claim 1, characterized in that: The light shield (101) is fixedly connected to a connecting frame (102), an electric telescopic rod (2) is fixedly mounted on the connecting frame (102), and the sealing cover (201) is fixedly connected to the output end of the electric telescopic rod (2).

4. The electric welding machine for lithium battery processing according to claim 1, characterized in that: The laser welding mechanism comprises a support seat (403) slidably connected inside the light shield (101), a cylinder (404) is fixedly mounted on the support seat (403), a connecting rod (405) is fixedly connected to the output end of the cylinder (404), and a laser welding head (406) is fixedly mounted on the connecting rod (405).

5. The electric welding machine for lithium battery processing according to claim 4, characterized in that: It also includes a screw rod (4) rotatably connected to the light shield (101), one end of the screw rod (4) passing through the light shield (101) is fixedly mounted with a handle (402), a guide rod (401) is fixedly connected to the light shield (101), and the support seat (403) is slidably connected to the guide rod (401) and is threadedly connected to the screw rod (4).

6. The electric welding machine for lithium battery processing according to claim 1, characterized in that: The sealing cover (201) is transparent.

7. The electric welding machine for lithium battery processing according to claim 1, characterized in that: Hydraulic telescopic rods (3) are symmetrically fixedly mounted on both inner walls of the light shield (101); output ends of the hydraulic telescopic rods (3) are fixedly connected to fixed plates (301); and protective pads (302) are fixedly mounted on the fixed plates (301).

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