A lithium battery spot welding processing equipment

Abstract

The invention relates to the technical field of lithium battery spot welding, and specifically to a lithium battery spot welding processing equipment. After welding is completed, a worker manually controls a cutting knife at the end of a limit block, and the cutting knife moves upward to cut an electrode sheet. After cutting is completed, a second telescopic rod then moves upward, and the second telescopic rod drives a welding plate and a welding wire to move upward, and the welding plate no longer squeezes the battery. Then, the first telescopic rod contracts, and the first telescopic rod drives a pushing plate to contract into a first chute. Then, the worker takes out the battery after welding, and completes the overall welding of the battery at one time, and the worker does not need to manually arrange the lithium batteries into a row and then weld the batteries one by one, thereby improving the welding efficiency of the battery.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery spot welding, in particular to a lithium battery spot welding processing equipment. Background Art

[0002] Spot welding machine, also known as resistance welding machine, is based on the principle of welding by using the resistance heat generated by the current passing through the welding point of the workpiece. When working, two electrodes squeeze the workpiece, so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other, instantaneous heat welding is formed at the two contact resistance points, and the welding current flows from the other electrode along the two workpieces instantly to form a loop without destroying the internal structure of the workpiece to be welded.

[0003] When the spot welding machine is used in the field of lithium batteries, the staff will clean the surface of the lithium battery end during the spot welding process, then place the electrode sheet on the end of the lithium battery, then send the lithium battery and the electrode sheet to the bottom of the welding head, and then apply pressure to make the welding head weld the electrode sheet, and the surface of the electrode sheet will partially melt to form a molten core; after power is turned off, the pressure is maintained to make the molten core cool and solidify under pressure to form a welding point; the pressure is released and the lithium battery after welding is taken out;

[0004] In the prior art, when welding electrode sheets, most of the welding is done by one person using one gun. Specifically, when a worker is welding a lithium battery, the worker needs to manually arrange the lithium batteries into a row, and then the worker places the electrode sheet or gasket on the end of the arranged lithium battery, and then aims the welding gun at the end of the lithium battery. The worker applies pressure to the welding gun, and the welding gun welds the electrode sheet or gasket to form a weld point, and then lifts the welding gun without squeezing the electrode sheet or gasket; then repeats the above actions, repeatedly spot welding the electrode sheet or gasket with the welding gun. The overall process is relatively cumbersome and the labor intensity of the workers is high.

[0005] In summary, in order to solve the above-mentioned technical problems, the present invention proposes a lithium battery spot welding processing equipment. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the present invention proposes a lithium battery spot welding processing equipment, including a welding frame, a spot welding frame, a control box and a control panel; the spot welding frame is fixedly connected to the welding frame, the control box is arranged below the welding frame, and the control panel is arranged on the control box; and further includes;

[0007] A conveyor belt, wherein the conveyor belt is arranged on the upper end surface of the welding frame, and limit plates are arranged on both sides of the conveyor belt;

[0008] A pushing block, the pushing block is arranged on the side of one end of the conveyor belt, a first slide groove is provided inside the pushing block, a pushing plate is slidably connected inside the first slide groove, a first telescopic rod is provided at one end of the pushing block away from the conveyor belt, the first telescopic rod is used to control the movement of the pushing plate, a baffle is provided on the side of the pushing block, and the baffle is located at the end of the conveyor belt;

[0009] A support block, wherein the support block is arranged on the side of one end of the conveyor belt, the support block and the push block correspond to each other, the conveyor belt is located between the support block and the push block, and no limit plates are arranged on both sides of the conveyor belt between the support block and the push block, and a convex block is arranged at one end of the support block away from the conveyor belt;

[0010] A sliding block is interactively connected to the spot welding frame, a second telescopic rod is fixedly connected to the side of the sliding block, a welding plate is fixedly connected to the lower end of the output shaft of the second telescopic rod, and a welding wire is arranged at the lower end of the welding plate.

[0011] As a preferred solution of the present invention, a winding roller is provided at the upper end of the welding frame, the winding roller is located on the side of the support block, and the electrode sheet is wound on the winding roller; a limiting block is provided at the upper end of the welding frame, the limiting block is located between the support block and the winding roller, when the electrode sheet on the winding roller is released, the electrode sheet slides on the limiting block, and a cutting knife is provided at one end of the limiting block close to the support block, and the cutting knife is used to cut the electrode sheet.

[0012] As a preferred solution of the present invention, a No. 1 groove is opened at both ends of the welding plate, and an extrusion block is slidably connected inside the No. 1 groove through a No. 1 spring. The welding wire is located between the two extrusion blocks, and in the initial state, the horizontal height of the lower end surfaces of the two extrusion blocks is lower than the horizontal height of the lower end of the welding wire.

[0013] As a preferred solution of the present invention, the lower end surfaces of the two extrusion blocks are each provided with a strip groove, and the width of the strip groove is 1-3 mm greater than the diameter of the battery.

[0014] As a preferred solution of the present invention, a cleaning ring is fixedly connected to the lower end of the extrusion block, the cleaning ring is sleeved on the outer ring of the welding wire, the cleaning ring is on the outer ring of the welding wire, and the material of the cleaning ring is ceramic fiber material.

[0015] As a preferred solution of the present invention, a movable plate is slidably connected to the upper end of the support block, and the movable plate is connected to the protrusion via a buffer member; and in an initial state, the movable plate is located on a side of the conveyor belt away from the push block, and the movable plate is located between the support block and the push block;

[0016] The buffer member is a No. 2 spring.

[0017] As a preferred solution of the present invention, the opposing surfaces of the moving plate and the pushing plate are both provided with a plurality of arc grooves.

[0018] As a preferred solution of the present invention, a buffer is provided between the movable plate and the protrusion; the buffer is a third telescopic rod;

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The lithium battery spot welding processing equipment described in the present invention, after welding is completed, the staff manually controls the cutting knife at the end of the limit block, the cutting knife moves upward, and the cutting knife cuts the electrode sheet; after cutting is completed, the second telescopic rod then moves upward, the second telescopic rod drives the welding plate and the welding wire to move upward, the welding plate no longer squeezes the battery, and then the first telescopic rod contracts, the first telescopic rod drives the pushing plate to contract into the first slide groove, and then the staff takes out the battery after welding, so as to complete the overall welding of the battery at one time, and there is no need for the staff to manually arrange the lithium batteries into a row and then weld the batteries one by one, thereby improving the welding efficiency of the battery.

[0021] 2. In the lithium battery spot welding processing equipment described in the present invention, the second telescopic rod continuously moves downward, and the extrusion block moves upward inside the No. 1 groove. When the extrusion block moves upward, the extrusion block drives the cleaning ring to move upward, and the cleaning ring slides upward on the outer ring of the welding wire; when the welding of the electrode sheets is completed, the second telescopic rod contracts upward, and the extrusion block moves downward inside the No. 1 groove. The extrusion block drives the cleaning ring to move downward, and during the downward movement of the cleaning ring, the cleaning ring scrapes the outer wall of the welding wire to avoid welding slag on the welding wire after welding, and when the cleaning ring moves downward, the cleaning ring has a certain grinding effect on the outer wall of the welding wire to avoid the welding wire from becoming black during use, and to avoid the welding wire from becoming black and affecting the welding accuracy and welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Figure 1 It is a three-dimensional diagram of the third embodiment of the present invention;

[0024] Figure 2 It is a three-dimensional diagram of the fourth embodiment of the present invention;

[0025] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0026] Figure 4 is a cross-sectional view of the push block in the present invention;

[0027] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0028] Figure 6 It is a structural view of the welding plate in the present invention;

[0029] Figure 7 It is a front view of the present invention;

[0030] In the figure: welding frame 1, conveyor belt 11, limit plate 111, push block 12, first slide groove 121, push plate 122, baffle 123, first telescopic rod 124, support block 13, protrusion 131, movable plate 132, No. 2 spring 133, arc groove 134, third telescopic rod 135, winding roller 14, electrode sheet 141, limit block 15, cutting knife 16, spot welding frame 2, sliding block 21, second telescopic rod 22, welding plate 23, welding wire 24, No. 1 groove 25, No. 1 spring 26, extrusion block 27, strip groove 28, cleaning ring 29, control chassis 3. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] Spot welding machine, also known as resistance welding machine, is based on the principle of welding by using the resistance heat generated by the current passing through the welding point of the workpiece. When working, two electrodes squeeze the workpiece, so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other, instantaneous heat welding is formed at the two contact resistance points, and the welding current flows from the other electrode along the two workpieces instantly to form a loop without destroying the internal structure of the workpiece to be welded.

[0033] When the spot welding machine is used in the field of lithium batteries, the staff cleans the surface of the lithium battery end during the spot welding process, then places the electrode sheet 141 on the end of the lithium battery, then sends the lithium battery and the electrode sheet 141 to the bottom of the welding head, then applies pressure to make the welding head weld the electrode sheet 141, and the surface of the electrode sheet 141 partially melts to form a molten core; after power is turned off, the pressure is maintained to make the molten core cool and solidify under pressure to form a welding point; the pressure is released and the lithium battery after welding is taken out;

[0034] In the prior art, when welding the electrode sheet 141, it is usually welded by one person using one gun. Specifically, when the worker is welding the lithium battery, the worker needs to manually arrange the lithium batteries into a row, and then the worker places the electrode sheet 141 or the gasket on the end of the arranged lithium battery, and then aims the welding gun at the end of the lithium battery. The worker applies pressure to the welding gun, and the welding gun welds the electrode sheet 141 or the gasket to form a weld point, and then lifts the welding gun and no longer squeezes the electrode sheet 141 or the gasket; then repeats the above actions, repeatedly spot welding the electrode sheet 141 or the gasket with the welding gun. The overall process is relatively cumbersome and the labor intensity of the workers is high.

[0035] Embodiment 1:

[0036] like Figure 1-Figure 7 As shown; a lithium battery spot welding processing equipment, including a welding frame 1, a spot welding frame 2, a control box 3 and a control panel; the spot welding frame 2 is fixedly connected to the welding frame 1, the control box 3 is arranged below the welding frame 1, and the control panel is arranged on the control box 3; also includes;

[0037] A conveyor belt 11, wherein the conveyor belt 11 is arranged on the upper end surface of the welding frame 1, and limit plates 111 are arranged on both sides of the conveyor belt 11;

[0038] A push block 12, the push block 12 is arranged on the side of one end of the conveyor belt 11, a first slide groove 121 is provided inside the push block 12, a push plate 122 is slidably connected inside the first slide groove 121, a first telescopic rod 124 is provided at one end of the push block 12 away from the conveyor belt 11, and the first telescopic rod 124 is used to control the movement of the push plate 122; a baffle 123 is provided on the side of the push block 12, and the baffle 123 is located at the end of the conveyor belt 11;

[0039] A support block 13, wherein the support block 13 is arranged on the side of one end of the conveyor belt 11, the support block 13 and the push block 12 correspond to each other, the conveyor belt 11 is located between the support block 13 and the push block 12, and no limit plates 111 are arranged on both sides of the conveyor belt 11 between the support block 13 and the push block 12, and a protrusion 131 is arranged on the end of the support block 13 away from the conveyor belt 11;

[0040] A sliding block 21 is interactively connected to the spot welding frame 2. A second telescopic rod 22 is fixedly connected to the side of the sliding block 21. A welding plate 23 is fixedly connected to the lower end of the output shaft of the second telescopic rod 22. A welding wire 24 is arranged at the lower end of the welding plate 23.

[0041] A winding roller 14 is provided at the upper end of the welding frame 1, and the winding roller 14 is located on the side of the support block 13, and an electrode sheet 141 is wound on the winding roller 14; a limiting block 15 is provided at the upper end of the welding frame 1, and the limiting block 15 is located between the support block 13 and the winding roller 14, when the electrode sheet 141 on the winding roller 14 is released, the electrode sheet 141 slides on the limiting block 15, and a cutting knife 16 is provided at one end of the limiting block 15 close to the support block 13, and the cutting knife 16 is used to cut the electrode sheet 141.

[0042] The specific workflow is as follows:

[0043] When the staff uses the spot welding machine, first the staff ensures that the feeding system continuously feeds the materials, and then places the battery to be welded on the conveyor belt 11. The conveyor belt 11 is rotated by the driving motor arranged inside the spot welding machine. When the conveyor belt 11 rotates, the conveyor belt 11 drives the battery above to move. By providing a limit plate 111 on the side of the conveyor belt 11, when the battery moves on the conveyor belt 11, the limit plate 111 limits the battery to prevent the battery from deviating on the conveyor belt 11. In addition, by providing a baffle 123 on the pushing block 12, the baffle 123 is located at the end of the conveyor belt 11. When the conveyor belt 11 transports the battery, the conveyor belt 11 drives the battery to move in the direction of the pushing block 12. When the battery moves to the end of the conveyor belt 11 at the pushing block 12, the baffle 123 blocks the battery. The battery slides on the surface of the conveyor belt 11. As the conveyor belt 11 The batteries will be accumulated at the conveyor belt 11 between the support block 13 and the push block 12, and because the conveyor belt 11 is located between the support block 13 and the push block 12 without a limit plate 111, at this time, the controller on the control box 3 on the welding frame 1 controls the extension of the first telescopic rod 124, and the first telescopic rod 124 is an electric telescopic rod. When the first telescopic rod 124 is extended, the first telescopic rod 124 pushes the push plate 122 to slide inside the first slide groove 121 until the first telescopic rod 124 pushes the push plate 122 out of the first slide groove 121. After the push plate 122 is pushed out of the first slide groove 121, it pushes the battery. After the battery is pushed, the battery moves from the conveyor belt 11 to the support block 13. As the battery moves on the support block 13, the battery is pushed by the push plate 122 to contact the protrusion 131, and the push plate 122 and the protrusion 131 cooperate with each other to squeeze the battery.

[0044] Then the staff controls the winding roller 14 to rotate counterclockwise. When the winding roller 14 rotates counterclockwise, the rolled electrode sheet 141 on the winding roller 14 is unwound from the winding roller 14. The electrode sheet 141 is released from the winding roller 14. After the electrode sheet 141 is released, when the electrode sheet 141 moves on the limit block 15, the limit block 15 limits the electrode sheet 141. Since the electrode sheet 141 has a certain rigidity, when the electrode sheet 141 is unwound from the winding roller 14, the electrode sheet 141 will slide on the limit block 15 until the electrode sheet 141 moves to the upper end of the battery between the push plate 122 and the protrusion 131, and the winding roller 14 stops unwinding.

[0045] Then the controller automatically controls or manually controls the second telescopic rod 22 to extend and retract downward. When the second telescopic rod 22 extends and retracts downward, the second telescopic rod 22 pushes the welding plate 23. The welding plate 23 is pushed and moves downward. When the welding plate 23 moves downward, it drives the welding wire 24 below to move downward. The welding wire 24 is a spot welding copper wire sold on the market. When the welding plate 23 moves downward, the welding wire 24 spot welds the electrode sheet 141 and the battery end. At the same time, the welding plate 23 squeezes the electrode sheet 141 to prevent the electrode sheet 141 from moving during the welding process, thereby improving the stability of the electrode sheet 141. When the battery is located between the protrusion 131 and the pushing plate 122, the horizontal height of the battery is the same as the horizontal height of the limit block 15. At the same time, the second telescopic rod 22 and the welding plate 23 are fixed On the sliding block 21, the sliding block 21 slides on the spot welding frame 2 under the action of the telescopic cylinder provided inside the spot welding frame 2; after welding is completed, the staff manually controls the cutting knife 16 at the end of the limit block 15, and the cutting knife 16 moves upward, and the cutting knife 16 cuts the electrode sheet 141; after cutting is completed, the second telescopic rod 22 then moves upward, and the second telescopic rod 22 drives the welding plate 23 and the welding wire 24 to move upward, and the welding plate 23 no longer squeezes the battery, and then the first telescopic rod 124 contracts, and the first telescopic rod 124 drives the push plate 122 to contract into the first slide groove 121, and then the staff takes out the battery after welding, so as to complete the overall welding of the battery at one time, and there is no need for the staff to manually arrange the lithium batteries into a row and then weld the batteries one by one, thereby improving the welding efficiency of the battery.

[0046] Embodiment 2:

[0047] like Figure 1-Figure 7 As shown; a No. 1 groove 25 is provided at both ends of the welding plate 23, and a No. 1 spring 26 is provided inside the No. 1 groove 25 to be slidably connected with an extrusion block 27, and the welding wire 24 is located between the two extrusion blocks 27, and in the initial state, the horizontal height of the lower end surfaces of the two extrusion blocks 27 is lower than the horizontal height of the lower end of the welding wire 24;

[0048] The lower end surfaces of the two extrusion blocks 27 are each provided with a strip groove 28, and the width of the strip groove 28 is 1-3 mm greater than the diameter of the battery;

[0049] A cleaning ring 29 is fixedly connected to the lower end of the extrusion block 27. The cleaning ring 29 is sleeved on the outer ring of the welding wire 24. The cleaning ring 29 is made of ceramic fiber.

[0050] The specific workflow is as follows:

[0051] A No. 1 groove 25 is provided at both ends of the welding plate 23, and a No. 1 spring 26 is used to slide and connect the extrusion block 27 inside the No. 1 groove 25, and the welding wire 24 is located between the two extrusion blocks 27, and in the initial state, the horizontal height of the lower ends of the two extrusion blocks 27 is lower than the horizontal height of the lower end of the welding wire 24; when the second telescopic rod 22 extends downward, the second telescopic rod 22 drives the welding plate 23, the welding wire 24, the No. 1 spring 26 and the extrusion block 27 to move downward. When the welding plate 23 is welding the battery, since the horizontal height of the lower ends of the two extrusion blocks 27 is lower than the horizontal height of the lower end of the welding wire 24, when the second telescopic rod 22 moves downward, the extrusion block 27 below the welding plate 23 will be the first to move downward. The second telescopic rod 22 contacts the upper end of the battery. After the extrusion block 27 contacts the battery and the electrode sheet 141, the second telescopic rod 22 continues to move downward. At this time, the extrusion block 27 continues to squeeze the electrode sheet 141 and the battery. The extrusion block 27 slides upward inside the No. 1 slot 25 until the welding wire 24 welds the battery. When the second telescopic rod 22 moves upward, the welding wire 24 will first leave the electrode sheet 141. When the welding wire 24 leaves the electrode sheet 141, the No. 1 spring 26 elastically deforms and pushes the extrusion block 27. The extrusion block 27 is in a state of squeezing the electrode sheet 141, so as to avoid the electrode sheet 141 from moving when the welding wire 24 is lifted after welding the electrode sheet 141, thereby improving the stability of the electrode sheet 141 during welding.

[0052] Furthermore, by providing a strip groove 28 at the lower end of the extrusion block 27, and making the width of the strip groove 28 greater than 1-3 mm of the battery diameter, when the extrusion block 27 moves downward with the extension and retraction of the second telescopic rod 22, the strip groove 28 on the extrusion block 27 moves downward, and the battery and the electrode sheet 141 at the end of the battery will enter the strip groove 28. After the electrode sheet 141 enters the strip groove 28, when the second telescopic rod 22 is extended and retracted downward, the extrusion block 27 will still first squeeze the battery end and the electrode sheet 141; and the arrangement of the strip groove 28 enables the strip groove 28 to limit the battery and the electrode sheet 141 after the battery end and the electrode sheet 141 enter the strip groove 28, thereby improving the accuracy of welding the electrode sheet 141 to the battery end;

[0053] A cleaning ring 29 is fixedly connected to the lower end of the extrusion block 27, and the cleaning ring 29 is slidably connected to the outer ring of the welding wire 24. When the second telescopic rod 22 moves downward, the extrusion block 27 will first contact the battery and the electrode sheet 141. As the second telescopic rod 22 continues to move downward, the extrusion block 27 will move upward inside the first groove 25. When the extrusion block 27 moves upward, the extrusion block 27 will drive the cleaning ring 29 to move upward, and the cleaning ring 29 will slide upward on the outer ring of the welding wire 24. After the electrode sheet 141 is welded, The second telescopic rod 22 contracts upward, and the extrusion block 27 moves downward inside the No. 1 groove 25. The extrusion block 27 drives the cleaning ring 29 to move downward. During the downward movement of the cleaning ring 29, the cleaning ring 29 scrapes the outer wall of the welding wire 24 to avoid welding slag on the welding wire 24 after welding. When the cleaning ring 29 moves downward, the cleaning ring 29 has a certain grinding effect on the outer wall of the welding wire 24 to avoid the welding wire 24 from becoming black during use, and to avoid the welding wire 24 from affecting the welding accuracy and welding efficiency after the welding wire 24 becomes black.

[0054] Embodiment three:

[0055] like Figure 1-Figure 7 As shown; the upper end of the support block 13 is slidably connected to a moving plate 132, and the moving plate 132 is connected to the protrusion 131 through a buffer member; and in the initial state, the moving plate 132 is located on the side of the conveyor belt 11 away from the pushing block 12, and the moving plate 132 is located between the support block 13 and the pushing block 12;

[0056] The buffer is a No. 2 spring 133;

[0057] The opposing surfaces of the moving plate 132 and the pushing plate 122 are both provided with a plurality of arc-shaped grooves 134;

[0058] The specific workflow is as follows:

[0059] A movable plate 132 is slidably connected to the upper end of the support block 13, and a second spring 133 is arranged between the movable plate 132 and the protrusion 131, and in the initial state; the movable plate 132 is located on the side of the conveyor belt 11 away from the push block 12, and the movable plate 132 is located between the support block 13 and the push block 12, and the movable plate 132 and the limit plate 111 are in the same plane. When the battery moves on the conveyor belt 11, the battery is limited by the baffle 123 to accumulate at one end of the conveyor belt 11 located at the push block 12, and at this time the motor is in contact with the movable plate 132;

[0060] When the first telescopic rod 124 is extended, the first telescopic rod 124 pushes the pushing plate 122 to slide inside the first sliding groove 121. After the pushing plate 122 moves out of the sliding groove, the pushing plate 122 pushes the battery, and when the pushing plate 122 pushes the battery, the battery squeezes the moving plate 132. At this time, the battery is squeezed between the moving plate 132 and the pushing plate 122. As the pushing plate 122 continues to push the battery, the battery pushes the moving plate 132 to move synchronously in the direction of the protrusion 131. When the moving plate 132 moves in the direction of the protrusion 131, the second spring 133 is squeezed until the battery is located at the lower end of the welding wire 24; through the moving plate 132, the battery is limited by the pushing plate 122 and the moving plate 132 when it just leaves the conveyor belt 11, so as to avoid the problem of the battery tilting;

[0061] And by opening an arc groove 134 on the opposite surfaces of the movable plate 132 and the pushing plate 122, when the first telescopic rod 124 pushes the pushing plate 122, the pushing plate 122 pushes the battery, and a single battery will be embedded in the arc groove 134 on the pushing plate 122. When the pushing plate 122 pushes the battery, the battery contacts the movable plate 132, and the battery enters the arc groove 134 on the movable plate 132. Then the movable plate 132 and the pushing plate 122 push the battery to the lower end of the welding wire 24 together, and the arc groove 134 is set to limit the side of the battery to avoid the problem of the battery tipping over, thereby improving the stability of the battery.

[0062] Embodiment 4:

[0063] like Figure 1-Figure 7 As shown; the difference between the fourth embodiment and the third embodiment is that the fourth embodiment is a supplementary description of the buffer member in the third embodiment, wherein this embodiment can be used as a replacement for the buffer member in the third embodiment; it includes;

[0064] A buffer is provided between the movable plate 132 and the protrusion 131; the buffer is a third telescopic rod 135;

[0065] By making the buffer member the third telescopic rod 135, when the first telescopic rod 124 pushes the pushing plate 122, the pushing plate 122 pushes the battery, after the battery is pushed, the battery pushes the moving plate 132, the moving plate 132 pushes the third telescopic rod 135, after the third telescopic rod 135 is pushed by the moving plate 132, it contracts until the battery moves to the lower end of the welding wire 24, the second telescopic rod 22 is extended and retracted, the welding wire 24 welds the battery and the electrode sheet 141, when the welding is completed, the third telescopic rod 135 is extended and retracted, the third telescopic rod 135 pushes the moving plate 132 to the side of the conveyor belt 11, the moving plate 132 and the limiting plate 111 are in the same plane, so that the battery is squeezed at all times;

[0066] Compared with the third embodiment in which the second spring 133 pushes the movable plate 132 when resetting, so that the movable plate 132 is reset to the side of the conveyor belt 11, the third telescopic rod 135 is more stable when pushing the movable plate 132, but the cost of the second spring 133 is lower than that of the third telescopic rod 135. The specific choice is determined by the manufacturer.

[0067] The above shows and describes the basic principles, main features and advantages of the present invention; those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lithium battery spot welding processing equipment, comprising a welding frame (1), a spot welding frame (2), a control box (3) and a control panel; the spot welding frame (2) is fixedly connected to the welding frame (1), the control box (3) is arranged below the welding frame (1), and the control panel is arranged on the control box (3); characterized in that: Also includes; A conveyor belt (11), wherein the conveyor belt (11) is arranged on the upper end surface of the welding frame (1), and limit plates (111) are arranged on both sides of the conveyor belt (11); A pushing block (12), the pushing block (12) being arranged on the side surface of one end of the conveyor belt (11), a first sliding groove (121) being provided inside the pushing block (12), a pushing plate (122) being slidably connected inside the first sliding groove (121), a first telescopic rod (124) being provided at one end of the pushing block (12) away from the conveyor belt (11), the first telescopic rod (124) being used to control the movement of the pushing plate (122), a baffle plate (123) being provided on the side surface of the pushing block (12), the baffle plate (123) being located at the end of the conveyor belt (11); A support block (13), wherein the support block (13) is arranged on a side surface of one end of the conveyor belt (11), the support block (13) and the pushing block (12) correspond to each other, the conveyor belt (11) is located between the support block (13) and the pushing block (12), and no limiting plates (111) are arranged on both sides of the conveyor belt (11) between the support block (13) and the pushing block (12), and a protrusion (131) is arranged at one end of the support block (13) away from the conveyor belt (11); A sliding block (21), the sliding block (21) being slidably connected to the spot welding frame (2), a second telescopic rod (22) being fixedly connected to a side of the sliding block (21), a welding plate (23) being fixedly connected to a lower end of an output shaft of the second telescopic rod (22), and a welding wire (24) being arranged at a lower end of the welding plate (23); A winding roller (14) is arranged at the upper end of the welding frame (1), the winding roller (14) is located on the side of the support block (13), and an electrode sheet (141) is wound on the winding roller (14); a limiting block (15) is arranged at the upper end of the welding frame (1), the limiting block (15) is located between the support block (13) and the winding roller (14), when the electrode sheet (141) on the winding roller (14) is released, the electrode sheet (141) slides on the limiting block (15), and a cutting knife (16) is arranged at one end of the limiting block (15) close to the support block (13), and the cutting knife (16) is used to cut the electrode sheet (141); A No. 1 groove (25) is provided at both ends of the welding plate (23), and an extrusion block (27) is slidably connected inside the No. 1 groove (25) via a No. 1 spring (26). The welding wire (24) is located between the two extrusion blocks (27), and in the initial state, the horizontal height of the lower end surfaces of the two extrusion blocks (27) is lower than the horizontal height of the lower end of the welding wire (24); The lower end surfaces of the two extrusion blocks (27) are each provided with a strip groove (28), and the width of the strip groove (28) is 1-3 mm greater than the diameter of the battery to be processed; A cleaning ring (29) is fixedly connected to the lower end of the extrusion block (27), and the cleaning ring (29) is sleeved on the outer ring of the welding wire (24). The cleaning ring (29) is on the outer ring of the welding wire (24), and the material of the cleaning ring (29) is ceramic fiber material.

2. A lithium battery spot welding processing equipment according to claim 1, characterized in that: A movable plate (132) is slidably connected to the upper end of the support block (13), and the movable plate (132) is connected to the protrusion (131) via a buffer member; and in an initial state, the movable plate (132) is located on a side of the conveyor belt (11) away from the pushing block (12), and the movable plate (132) is located between the support block (13) and the pushing block (12); The buffer member is a No. 2 spring (133).

3. A lithium battery spot welding processing equipment according to claim 2, characterized in that: The opposing surfaces of the moving plate (132) and the pushing plate (122) are both provided with a plurality of arc-shaped grooves (134).

4. A lithium battery spot welding processing equipment according to claim 2, characterized in that: A buffer is provided between the movable plate (132) and the protrusion (131); the buffer is a third telescopic rod (135).

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