Lithium battery adapter piece laser welding dust collection mechanism

Abstract

The utility model provides a dust collection mechanism for laser welding of a lithium battery adapter piece, relates to the technical field of lithium battery production equipment, and solves the problems that potential safety hazards exist due to the fact that a welding pressure head is fixed by a bolt during laser welding of the existing adapter piece, the dust collection effect is poor during evacuation, and the quality of a battery cell is influenced. The device comprises a mounting plate, a welding pressing plate is connected to the bottom face of the mounting plate, a set of vertical dust suction pipes are symmetrically arranged on the left portion and the right portion of the upper surface of the welding pressing plate, a set of air inlet pipes are arranged on the side, opposite to the vertical dust suction pipes, of the welding pressing plate, and horizontal dust suction pipes are arranged on the two sides of the welding pressing plate in a left-right moving mode. The left portion and the right portion of the bottom face of the welding pressing plate protrude downwards and are symmetrically provided with a set of bosses, and the welding cover plate detachably covers the corresponding bosses through a set of adapter blocks. The dust suction device has the beneficial effects that the dust suction effect is improved, and the influence of welding fume on the quality of a battery cell is reduced; disassembly, assembly and maintenance are convenient, and the risk that bolts or screws fall into the battery cell is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production equipment, in particular to a dust suction mechanism for laser welding of lithium battery adapters. Background Art

[0002] In the current laser welding process of the adapter, the welding pressure plate presses the top cover and the adapter, and the laser light is used for welding. At the same time, dust is extracted to remove the welding slag and welding smoke to avoid contaminating the battery cell. However, the existing welding pressure head is fixed by bolts, which are easy to loosen. After the bolts are broken, the battery cell is adjusted to cause safety hazards and quality problems. When evacuating, it only relies on two dust extraction ports, and no obvious negative pressure is formed. The poor dust extraction effect affects the quality of the battery cell. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that in the existing laser welding of adapters, the welding pressure head is fixed by bolts and is easy to loosen. After the bolts are broken, the battery cell is adjusted to cause safety hazards and quality problems; at the same time, when vacuuming, it only relies on two dust extraction ports, no obvious negative pressure is formed, the dust extraction effect is poor, and the quality of the battery cell is affected.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A vacuum mechanism for laser welding of a lithium battery adapter, characterized in that it comprises a mounting plate, a welding pressure plate is connected to the bottom surface of the mounting plate, a group of vertical vacuum pipes are symmetrically arranged on the left and right parts of the upper surface of the welding pressure plate, a group of air inlet pipes are arranged on the welding pressure plate on the opposite side of the two vertical vacuum pipes, and horizontal vacuum pipes are arranged on both sides of the welding pressure plate for movement from left to right;

[0006] The left and right parts of the bottom surface of the welding pressure plate are symmetrically provided with a group of bosses convexly downward, and the two bosses are detachably connected with welding cover plates, and the upper surface of the welding cover plate is provided with grooves corresponding to the bosses along the length direction, and the welding cover plate is detachably covered on the corresponding bosses through a group of adapter blocks, and the lower surface of the welding cover plate is convexly provided with a welding pressure head;

[0007] The welding pressure head is provided with a welding dust suction chamber running through it from top to bottom, the boss is located above the welding dust suction chamber and is provided with a vertical dust suction channel communicating with the welding dust suction chamber from top to bottom, the vertical dust suction channel is connected to the vertical dust suction pipe, a horizontal dust suction channel is provided on the lower surface of the boss between the vertical dust suction channel and the horizontal dust suction pipe, one end of the horizontal dust suction channel is connected to the welding dust suction chamber, and the other end of the horizontal dust suction channel is connected to the horizontal dust suction pipe, the boss is located on the other side of the horizontal dust suction channel and is provided with an air inlet channel running through it from top to bottom, and the two ends of the air inlet channel are respectively connected to the air inlet pipe and the welding dust suction chamber.

[0008] Further improvements are: a slot is provided at one end of the adapter block facing the welding cover plate, an insert block adapted to the slot is provided at one end of the welding cover plate facing the adapter block, the adapter block is inserted at both ends of the welding cover plate through the cooperation between the insert block and the slot, a first L-shaped limit block is provided at both ends of the boss, a second L-shaped limit block adapted to the first L-shaped limit block is provided at one end of the adapter block away from the welding cover plate, and the adapter block is inserted at both ends of the boss through the cooperation between the second L-shaped limit block and the first L-shaped limit block.

[0009] A further improvement is that a group of blocks are connected to the bottom surface of the welding pressure plate, and one end of the block abuts against the side surface of the inner adapter block.

[0010] A further improvement is that: a spring groove is provided on the lower surface of the welding pressure plate at the front and rear sides of the boss, a spring is installed on the spring groove, and the lower end of the spring abuts against the upper surface of the welding cover plate.

[0011] A further improvement is that the welding pressure plate is mounted on the bottom surface of the mounting plate by bolts.

[0012] A further improvement is that: the horizontal dust suction pipe is connected to a horizontal dust suction pipe mounting block, the horizontal dust suction pipe mounting block is connected to the output end of the driving device through a horizontal dust suction pipe driving connecting plate, and the horizontal dust suction pipe mounting block is slidably arranged on both sides of the mounting plate.

[0013] A further improvement is that the driving device is a cylinder.

[0014] A further improvement is that a positioning buffer rod is arranged on the surface of one end of the horizontal dust suction pipe mounting block facing the welding pressure plate, positioning buffer holes are arranged on both sides of the welding pressure plate corresponding to the positioning buffer rod, and springs are arranged in the positioning buffer holes.

[0015] A further improvement is that a dust cover is arranged outside the vertical dust suction pipe.

[0016] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0017] An additional air inlet duct is provided to cooperate with the vertical dust suction duct and the horizontal dust suction duct to form a negative pressure, thereby improving the dust extraction effect and reducing the impact of welding smoke on the quality of the battery cells. The pressure head and the cover plate are easy to disassemble and maintain through the adapter, which reduces the use of bolts and screws and avoids the risk of bolts or screws falling into the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 labor.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a front structural schematic diagram of the utility model;

[0021] Figure 3 It is a side structural schematic diagram of the utility model;

[0022] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0023] Figure 5 This utility model Figure 4 AA section view in the figure;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the connection between the welding pressing plate and the welding pressing head of the utility model;

[0026] Figure 8 It is a structural schematic diagram of the utility model in which the welding pressing plate and the welding pressing head are separated;

[0027] Fig. 9 This is a schematic diagram of the connection structure of the welding pressure plate and the welding pressure head of the utility model at another angle;

[0028] Fig.10 This utility model Fig. 9 Schematic diagram of the explosion structure.

[0029] Explanation of the accompanying drawings: mounting plate 1, vertical dust suction pipe 2, dust cover 21, horizontal dust suction pipe 3, horizontal dust suction pipe mounting block 31, horizontal dust suction pipe drive connecting plate 32, positioning buffer rod 33, air inlet pipe 4, welding pressure plate 5, boss 51, spring slot 52, first L-shaped limit block 53, positioning buffer hole 54, vertical dust suction channel 55, air inlet channel 56, horizontal dust suction channel 57, welding cover plate 6, welding pressure head 61, insert block 62, welding dust suction chamber 63, adapter block 7, second L-shaped limit block 71, slot 72, block 8, spring 9, battery cell top cover and adapter plate 10. The arrow indicates the direction of dust suction. DETAILED DESCRIPTION

[0030] See also Figure 1-Figure 10 As shown, the technical solution adopted in this specific embodiment is: a lithium battery adapter laser welding dust suction mechanism, comprising a mounting plate 1, a welding pressure plate 5 is connected to the bottom surface of the mounting plate 1, a group of vertical dust suction pipes 2 are symmetrically arranged on the left and right parts of the upper surface of the welding pressure plate 5, a group of air inlet pipes 4 are arranged on the welding pressure plate 5 on the opposite side of the two vertical dust suction pipes 2, and horizontal dust suction pipes 3 are arranged on both sides of the welding pressure plate 5 for movement left and right;

[0031] The bottom surface of the welding pressure plate 5 is symmetrically provided with a group of bosses 51 protruding downwards on the left and right parts, and the two bosses 51 are detachably connected with a welding cover plate 6. The upper surface of the welding cover plate 6 is provided with a groove corresponding to the boss 5 along the length direction. The welding cover plate 6 is detachably covered on the corresponding boss 51 through a group of adapter blocks 7. The lower surface of the welding cover plate 6 is convexly provided with a welding pressure head 61;

[0032] The welding pressure head 61 is provided with a welding dust suction chamber 63 through it from top to bottom, and the boss 5 is provided with a vertical dust suction channel 55 connected with the welding dust suction chamber 63 through it from top to bottom above the welding dust suction chamber 63, and the vertical dust suction channel 55 is connected to the vertical dust suction pipe 2, and a horizontal dust suction channel 57 is provided on the lower surface of the boss 5 between the vertical dust suction channel 55 and the horizontal dust suction pipe 3, one end of the horizontal dust suction channel 57 is connected to the welding dust suction chamber 63, and the other end of the horizontal dust suction channel 57 is connected to the horizontal dust suction pipe 3, and the boss 5 is located on the other side of the horizontal dust suction channel 57 and is provided with an air inlet channel 56 through it from top to bottom, and the two ends of the air inlet channel 56 are respectively connected to the air inlet pipe 4 and the welding dust suction chamber 63.

[0033] Among them, the adapter block 7 is provided with a slot 72 at one end facing the welding cover plate 6, and the welding cover plate 6 is provided with an insert block 62 adapted to the slot 72 at one end facing the adapter block 7. The adapter block 7 is inserted at both ends of the welding cover plate 6 through the cooperation between the insert block 62 and the slot 72. The first L-shaped limit block 53 is provided at both ends of the boss 5. The end of the adapter block 7 away from the welding cover plate 6 is provided with a second L-shaped limit block 71 adapted to the first L-shaped limit block 53. The adapter block 7 is inserted at both ends of the boss 5 through the cooperation between the second L-shaped limit block 71 and the first L-shaped limit block 53.

[0034] A group of stoppers 8 are connected to the bottom surface of the welding pressure plate 5 , and one end of the stopper 8 abuts against the side surface of the adapter block 7 on the inner side.

[0035] The lower surface of the welding pressure plate 5 is provided with a spring groove 52 at the front and rear sides of the boss 5 , and a spring 9 is installed on the spring groove 52 . The lower end of the spring 9 abuts against the upper surface of the welding cover plate 6 .

[0036] The welding pressure plate 5 is mounted on the bottom surface of the mounting plate 1 by means of bolts.

[0037] The horizontal dust suction pipe 3 is connected to a horizontal dust suction pipe mounting block 31 , which is connected to the output end of the driving device via a horizontal dust suction pipe driving connecting plate 32 , and the horizontal dust suction pipe mounting block 31 is slidably arranged on both sides of the mounting plate 1 .

[0038] Wherein, the driving device is a cylinder.

[0039] Among them, the horizontal suction pipe mounting block 31 is provided with a positioning buffer rod 33 on one end portion facing the welding pressure plate 5, and the two sides of the welding pressure plate 5 are provided with positioning buffer holes 54 corresponding to the positioning buffer rod 33, and a spring is provided in the positioning buffer hole 54.

[0040] Wherein, a dust cover 21 is arranged outside the vertical dust suction pipe 2 .

[0041] The working principle of the utility model: when in use, an air inlet pipe is additionally provided to cooperate with the vertical dust suction pipe and the horizontal dust suction pipe. Air is blown into the welding dust suction chamber through the air inlet pipe, and then two-way dust suction is performed through the horizontal dust suction pipe and the vertical dust suction pipe to form a negative pressure, thereby increasing the dust extraction effect and reducing the impact of welding smoke on the quality of the battery cell; the pressure head and the cover plate are detachably mounted on the adapter through the plug-in block and the slot, and the adapter is detachably mounted on the bottom surface of the welding pressure plate through the L-shaped limit block. The adapter is convenient for disassembly and maintenance, reduces the use of bolts and screws, and avoids the risk of bolts or screws falling into the battery cell.

[0042] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A dust collection mechanism for laser welding of lithium battery adapters, characterized in that: It includes a mounting plate, the bottom surface of which is connected to a welding plate, a group of vertical dust suction pipes are symmetrically arranged on the left and right parts of the upper surface of the welding plate, a group of air inlet pipes are arranged on the welding plate on the opposite side of the two vertical dust suction pipes, and horizontal dust suction pipes are arranged on both sides of the welding plate for movement from left to right; The left and right parts of the bottom surface of the welding pressure plate are symmetrically provided with a group of bosses convexly downward, and the two bosses are detachably connected with welding cover plates, and the upper surface of the welding cover plate is provided with grooves corresponding to the bosses along the length direction, and the welding cover plate is detachably covered on the corresponding bosses through a group of adapter blocks, and the lower surface of the welding cover plate is convexly provided with a welding pressure head; The welding pressure head is provided with a welding dust suction chamber running through it from top to bottom, the boss is located above the welding dust suction chamber and is provided with a vertical dust suction channel communicating with the welding dust suction chamber from top to bottom, the vertical dust suction channel is connected to the vertical dust suction pipe, a horizontal dust suction channel is provided on the lower surface of the boss between the vertical dust suction channel and the horizontal dust suction pipe, one end of the horizontal dust suction channel is connected to the welding dust suction chamber, and the other end of the horizontal dust suction channel is connected to the horizontal dust suction pipe, the boss is located on the other side of the horizontal dust suction channel and is provided with an air inlet channel running through it from top to bottom, and the two ends of the air inlet channel are respectively connected to the air inlet pipe and the welding dust suction chamber.

2. A dust suction mechanism for laser welding of lithium battery adapter according to claim 1, characterized in that: A slot is provided at one end of the adapter block facing the welding cover plate, and an insert block adapted to the slot is provided at one end of the welding cover plate facing the adapter block. The adapter block is inserted at both ends of the welding cover plate through the cooperation between the insert block and the slot, and a first L-shaped limit block is provided at both ends of the boss. A second L-shaped limit block adapted to the first L-shaped limit block is provided at one end of the adapter block away from the welding cover plate, and the adapter block is inserted at both ends of the boss through the cooperation between the second L-shaped limit block and the first L-shaped limit block.

3. A dust suction mechanism for laser welding of lithium battery adapter according to claim 2, characterized in that: A group of stoppers are connected to the bottom surface of the welding pressure plate, and one end of the stopper abuts against the side surface of the inner adapter block.

4. A dust suction mechanism for laser welding of lithium battery adapter according to claim 2, characterized in that: The lower surface of the welding pressure plate is provided with a spring groove at the front and rear sides of the boss, and a spring is installed on the spring groove, and the lower end of the spring abuts against the upper surface of the welding cover plate.

5. The dust suction mechanism for laser welding of lithium battery adapter according to claim 1, characterized in that: The welding pressure plate is mounted on the bottom surface of the mounting plate by means of bolts.

6. A dust suction mechanism for laser welding of lithium battery adapter according to claim 1, characterized in that: The horizontal dust suction pipe is connected to a horizontal dust suction pipe mounting block, and the horizontal dust suction pipe mounting block is connected to the output end of the driving device through a horizontal dust suction pipe driving connecting plate, and the horizontal dust suction pipe mounting block is slidably arranged on both sides of the mounting plate.

7. A dust suction mechanism for laser welding of lithium battery adapter according to claim 6, characterized in that: The driving device is a cylinder.

8. The dust suction mechanism for laser welding of lithium battery adapter according to claim 1, characterized in that: The horizontal dust suction pipe mounting block is provided with a positioning buffer rod on one end portion facing the welding pressure plate, and positioning buffer holes are provided on both sides of the welding pressure plate corresponding to the positioning buffer rod, and springs are provided in the positioning buffer holes.

9. The dust suction mechanism for laser welding of lithium battery adapter according to claim 1, characterized in that: A dust cover is arranged outside the vertical dust suction pipe.

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