Battery case sealing detection equipment for lithium battery production

Abstract

The utility model relates to the technical field of lithium battery production and processing, and discloses battery case sealing detection equipment for lithium battery production, which comprises an equipment table, and a top seat is fixed at the top end of the equipment table. When the battery shell sealing detection equipment for lithium battery production is used for fixing a shell workpiece before detection, the shell workpiece is placed at the top end of a top table, then a rotating handle can be rotated to drive a two-way screw to rotate, threaded sleeves on the two sides of the outside can be utilized to drive two sets of clamping seats to move inwards at the same time while the two-way screw rotates, and the two sets of clamping seats are clamped in the two sets of clamping seats. The two sides of a shell workpiece can be rapidly clamped and fixed in an auxiliary mode, the shell workpiece can be automatically positioned in the middle of the top end of the top table while clamping is conducted through the two sets of symmetrically-arranged clamping bases, and the two sets of position-adjustable clamping bases can be used for clamping and fixing some battery shell workpieces of different sizes. The problem that a lithium battery shell workpiece cannot be conveniently clamped and fixed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production and processing, in particular to a battery shell sealing detection device for lithium battery production. Background Art

[0002] Lithium metal batteries generally use manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and use non-aqueous electrolyte solutions. They can be divided into lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and can be recharged and used in a cycle. The shell of a lithium battery is an important component of a lithium battery. Its main function is to protect the internal structure of the battery to prevent battery failure or leakage. In the process of producing and processing lithium battery shells, in order to ensure the sealing of the lithium battery shell, it is necessary to use battery shell sealing detection equipment for lithium battery production to perform airtight sealing detection on the produced lithium battery shell workpieces.

[0003] However, when the battery shell sealing inspection equipment used in lithium battery production is used to fix the lithium battery shell before the sealing inspection, due to the various sizes of the battery shell workpieces produced, different jigs need to be replaced back and forth to clamp and fix the shell workpieces of different sizes. The clamping operation is very cumbersome and time-consuming, and there are deficiencies, which makes it inconvenient to conveniently clamp and fix the lithium battery shell workpiece.

[0004] Now, a new type of battery shell sealing detection equipment for lithium battery production is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of the utility model is to provide a battery shell sealing detection device for lithium battery production, so as to solve the problem of inconvenience in convenient clamping and fixing of lithium battery shell workpieces proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery shell sealing detection device for lithium battery production, comprising an equipment table, a top seat is fixed on the top of the equipment table, and a mounting frame is welded and fixed to the rear end of the top of the top seat, a top table is fixed to the front end of the top of the top seat, and a clamping structure for conveniently clamping and fixing a lithium battery shell workpiece is arranged on the top table;

[0007] The clamping structure includes a clamping seat, a rotating handle, a threaded sleeve, a bidirectional screw, a limiting groove and an anti-skid pad. The inside of the top platform is laterally movably connected with a bidirectional screw, and the two sides of the outside of the bidirectional screw are respectively threadedly connected with threaded sleeves. The top of the top platform is symmetrically provided with clamping seats on both sides, and the inside of the top platform is provided with a limiting groove. The two ends of the left side of the clamping seat are respectively glued and fixed with anti-skid pads, and the right side of the bidirectional screw passes through the inside of the right side of the top platform and is fixed with a rotating handle.

[0008] Furthermore, the limiting groove passes through the interior of the top end of the top platform, and the top end of the threaded sleeve passes through the interior of the limiting groove and is fixedly connected to the bottom end of the clamping seat.

[0009] Preferably, a fixed foot is fixed to the top of the left side of the mounting frame, and a hanging ring is provided inside the bottom end of the fixed foot, a spring rope is provided at the bottom end of the fixed foot, a hook is fixed to the top end of the spring rope, and a marker pen is provided at the bottom end of the spring rope.

[0010] Furthermore, the hook passes through the interior of the hanging ring, and the bottom end of the spring rope is fixedly connected to the marker pen.

[0011] Preferably, a fixing frame is fixed to the top of the right side of the mounting frame, and a gooseneck is fixed to the right side of the fixing frame, an LED lighting lamp is fixed to the bottom end of the gooseneck, and a connecting wire is arranged inside the LED lighting lamp.

[0012] Furthermore, the bottom end of the connecting wire is electrically connected to the LED lighting lamp, and the top end of the connecting wire passes through the inside of the gooseneck tube.

[0013] Preferably, a hydraulic cylinder is installed and fixed on the top of the mounting frame, a pressure plate is provided on the top of the interior of the mounting frame, the output end of the bottom of the hydraulic cylinder passes through the interior of the top of the mounting frame and is fixedly connected to the top of the pressure plate, a sealing gasket is fixed to the bottom end of the pressure plate, an air pump is installed and fixed on the top of the right side of the equipment table, and an air pipe is fixed to the output end of the air pump, a one-way valve is fixed on the air pipe, the left side of the air pipe is fixedly connected to the right side of the top of the pressure plate, guide rods are vertically installed and fixed on both sides of the top of the pressure plate, sliding sleeves are installed and fixed on the inside of both sides of the top of the mounting frame, and the sliding sleeves pass through the inside of the top of the mounting frame, and the top of the guide rod is slidably inserted into the inside of the sliding sleeve.

[0014] Preferably, a pressure gauge is fixed to the left side of the top end of the pressing plate, and the bottom end of the pressure gauge passes through the interior of the pressing plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the battery shell sealing detection equipment for lithium battery production not only realizes convenient clamping and fixing of lithium battery shell workpieces, realizes convenient marking of unqualified battery shell workpiece products, but also realizes convenient appearance defect inspection of battery shell workpieces;

[0016] (1) By providing a top platform, a clamping seat, a rotating handle, a threaded sleeve, a bidirectional screw, a limiting groove and an anti-slip pad, when the equipment is used to fix the lithium battery shell workpiece before testing, the shell workpiece is placed on the top of the top platform, and then the rotating handle can be turned on the right side of the top platform to drive the bidirectional screw to rotate. While the bidirectional screw rotates, the threaded sleeves connected by the threads on both sides of the outside can be used to drive the two sets of clamping seats to move inward at the same time, and the two sides of the shell workpiece can be quickly clamped and fixed. The two sets of symmetrically arranged clamping seats can also automatically position the shell workpiece at the middle position of the top of the top platform during clamping. Through the two sets of adjustable clamping seats, it is convenient to clamp and fix some battery shell workpieces of different sizes;

[0017] (2) By providing a mounting frame, a fixed foot, a hanging ring, a hook, a spring rope and a marking pen, when the equipment is in use, the marking pen can be hung and fixed on the bottom end of the spring rope. During inspection, the hydraulic cylinder is controlled to start and drive the pressure plate to move downward, and the sealing gasket at the bottom of the pressure plate is pressed against the top opening of the shell, so that the inside of the shell can be auxiliary sealed. Then, the air pump is turned on and the air is pumped into the inside of the shell through the air pipe to increase the pressure. After the pressure reaches a certain level, the air pump is turned off, and then the pressure gauge pointer is observed. If the pointer indicates a large drop in the pressure within a certain period of time, it indicates that there is a leak in the shell and it is a defective product. If the pointer of the pressure gauge indicates that the pressure does not drop or the drop is small within a certain period of time, it can be identified as a qualified product. When a defective product is detected, the marking pen can be pulled to the right by the spring rope on the left side of the mounting frame, and a line can be drawn on the defective shell workpiece to facilitate the distinction between qualified and unqualified shell workpieces.

[0018] (3) By providing a mounting frame, a gooseneck tube, a fixing frame, connecting wires and an LED lighting lamp, when the equipment is in use, the external switch on the connecting wire can be connected to the power supply of the equipment, and the switch can be turned on to power on the LED lighting lamp. The provided LED lighting lamp can be used to perform a sealing and airtightness inspection on the shell workpiece at the top of the top platform and at the same time perform a fill-in light inspection on the external appearance defects of the shell workpiece. The irradiation and fill-in light position of the LED lighting lamp can be adjusted arbitrarily by bending the gooseneck tube, so as to facilitate the appearance defect inspection of the battery shell workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the enlarged side view of the clamping seat of the utility model;

[0021] Figure 3 This is a front view enlarged structural diagram of the spring rope of the utility model;

[0022] Figure 4This is a schematic diagram of an enlarged partial cross-section of the LED lighting lamp of the utility model;

[0023] Figure 5 It is a side structural schematic diagram of the mounting frame of the utility model.

[0024] In the figure: 1. Equipment table; 2. Top base; 3. Top platform; 4. Mounting frame; 5. Pressure plate; 6. Sliding sleeve; 7. Guide rod; 8. Hydraulic cylinder; 9. Pressure gauge; 10. Air pipe; 11. Gooseneck; 12. Clamp seat; 13. Turn handle; 14. One-way valve; 15. Air pump; 16. Threaded sleeve; 17. Bidirectional screw; 18. Limiting groove; 19. Anti-slip pad; 20. Fixed foot; 21. Hanging ring; 22. Hook; 23. Spring rope; 24. Marker pen; 25. Fixed frame; 26. Connecting wire; 27. LED lighting. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1: Please refer to Figure 1-4 A battery shell sealing detection device for lithium battery production includes an equipment platform 1, a top seat 2 is fixed on the top of the equipment platform 1, and a mounting frame 4 is welded and fixed to the rear end of the top of the top seat 2, a top platform 3 is fixed to the front end of the top of the top seat 2, and a clamping structure for conveniently clamping and fixing a lithium battery shell workpiece is provided on the top platform 3;

[0027] The clamping structure includes a clamping seat 12, a rotating handle 13, a threaded sleeve 16, a bidirectional screw 17, a limiting groove 18 and an anti-skid pad 19. The interior of the top platform 3 is laterally movably connected with the bidirectional screw 17, and the two sides of the exterior of the bidirectional screw 17 are respectively threadedly connected with the threaded sleeves 16. The clamping seat 12 is symmetrically arranged on both sides of the top of the top platform 3. The top of the top platform 3 is provided with a limiting groove 18. The two ends of the left side of the clamping seat 12 are respectively pasted and fixed with anti-skid pads 19. The right side of the bidirectional screw 17 passes through the interior of the right side of the top platform 3 and is fixed with the rotating handle 13. The limiting groove 18 passes through the interior of the top of the top platform 3. The top end of the threaded sleeve 16 passes through the interior of the limiting groove 18 and is fixedly connected to the bottom end of the clamping seat 12.

[0028] Specifically, Figure 1 , Figure 2 and Figure 5As shown, after the shell workpiece is placed on the top of the top platform 3, the handle 13 can be turned on the right side of the top platform 3 to drive the bidirectional screw 17 to rotate. While the bidirectional screw 17 rotates, the threaded sleeves 16 connected by threads on both sides of the outside can be used to drive the two groups of clamps 12 to move inward at the same time, and the two sides of the shell workpiece can be quickly assisted in clamping and fixing. The two groups of clamps 12 arranged symmetrically can also automatically position the shell workpiece in the middle position of the top of the top platform 3 during clamping. The two groups of clamps 12 with adjustable positions can be adjusted, clamped and fixed to some battery shell workpieces of different sizes.

[0029] Embodiment 2: A fixed foot 20 is fixed to the top of the left side of the mounting frame 4, and a hanging ring 21 is provided through the bottom of the fixed foot 20, a spring rope 23 is provided at the bottom of the fixed foot 20, a hook 22 is fixed to the top of the spring rope 23, a marking pen 24 is provided at the bottom of the spring rope 23, the hook 22 passes through the inside of the hanging ring 21, and the bottom end of the spring rope 23 is fixedly connected to the marking pen 24;

[0030] Specifically, Figure 1 and Figure 3 As shown, when the equipment is in use, the marker pen 24 can be hung and fixed on the bottom end of the spring rope 23. When unqualified products are detected, the marker pen 24 can be pulled to the right by the spring rope 23 on the left side of the mounting frame 4, and a line can be drawn on the unqualified shell workpiece to facilitate the distinction between qualified and unqualified shell workpieces. By setting the spring rope 23, the marker pen 24 can be assisted in hanging when in use, and the loss of the marker pen 24 can be prevented.

[0031] Embodiment 3: A fixing frame 25 is fixed to the top of the right side of the mounting frame 4, and a gooseneck tube 11 is fixed to the right side of the fixing frame 25, an LED lighting lamp 27 is fixed to the bottom end of the gooseneck tube 11, and a connecting wire 26 is arranged inside the LED lighting lamp 27, the bottom end of the connecting wire 26 is electrically connected to the LED lighting lamp 27, and the top end of the connecting wire 26 passes through the inside of the gooseneck tube 11;

[0032] Specifically, Figure 1 and Figure 4 As shown, after the external switch on the connecting wire 26 is connected to the power supply of the equipment, the LED lighting lamp 27 can be powered on and illuminated by turning on the switch. The set LED lighting lamp 27 can be used to perform sealing and airtightness inspection on the shell workpiece at the top of the top platform 3 and at the same time perform fill-in light inspection on the external appearance defects of the shell workpiece. The irradiation fill-in light position of the LED lighting lamp 27 can be adjusted arbitrarily by bending the gooseneck tube 11, and the appearance of different positions on the outside of the shell can be inspected.

[0033] A hydraulic cylinder 8 is fixedly installed on the top of the mounting frame 4, and a pressure plate 5 is arranged on the top of the interior of the mounting frame 4. The output end of the bottom of the hydraulic cylinder 8 passes through the interior of the top of the mounting frame 4 and is fixedly connected to the top of the pressure plate 5. A sealing gasket is fixed to the bottom end of the pressure plate 5. An air pump 15 is fixedly installed on the top of the right side of the equipment table 1, and an air pipe 10 is fixedly installed on the output end of the air pump 15. A one-way valve 14 is fixed on the air pipe 10. The left side of the air pipe 10 is fixedly connected to the right side of the top of the pressure plate 5. Guide rods 7 are vertically fixedly installed on both sides of the top of the pressure plate 5. Sleeves 6 are fixedly installed on the inside of both sides of the top of the mounting frame 4, and the sleeves 6 pass through the interior of the top of the mounting frame 4. The top of the guide rod 7 is slidably inserted into the inside of the sleeve 6. A pressure gauge 9 is fixed on the left side of the top of the pressure plate 5, and the bottom end of the pressure gauge 9 passes through the interior of the pressure plate 5.

[0034] Working principle: When the utility model is in use, when the device is used to fix the lithium battery shell workpiece before testing, the shell workpiece is placed on the top of the top platform 3, and then the handle 13 can be turned on the right side of the top platform 3 to drive the bidirectional screw 17 to rotate. While the bidirectional screw 17 rotates, the threaded sleeves 16 connected by threads on both sides of the outside can be used to drive the two groups of clamps 12 to move inward at the same time, and the two sides of the shell workpiece can be quickly assisted in clamping and fixing. The two groups of clamps 12 arranged symmetrically can also automatically position the shell workpiece in the middle position of the top of the top platform 3 during clamping. When the equipment is in use, the marker pen 24 can be hung and fixed on the bottom end of the spring rope 23. During testing, the hydraulic cylinder 8 is controlled to start and drive the pressure plate 5 to move downward, and the sealing gasket at the bottom of the pressure plate 5 is pressed against the top opening of the shell, so that the inside of the shell can be assisted in sealing. After that, the air pump 15 is turned on to inflate and pressurize the inside of the shell through the air pipe 10. After a certain pressure is reached, turn off the air pump 15, and then observe the pointer of the pressure gauge 9. When the pointer indicates a large drop within a certain period of time, it means that there is a leak in the shell and it is a defective product. When the pointer of the pressure gauge 9 indicates that it does not drop or drops slightly within a certain period of time, it can be determined as a qualified product. When unqualified products are detected, the marker 24 can be pulled to the right by the spring rope 23 on the left side of the mounting frame 4, and a line can be drawn on the unqualified shell workpiece to distinguish between qualified and unqualified shell workpieces. When the equipment is in use, the external switch on the connecting wire 26 can be connected to the power supply of the equipment, and the switch can be turned on to power on the LED lighting lamp 27. The LED lighting lamp 27 can be used to perform a sealing and airtightness test on the shell workpiece at the top of the top platform 3 while performing a fill-light inspection on the external appearance defects of the shell workpiece. The irradiation fill-light position of the LED lighting lamp 27 can be adjusted arbitrarily by bending the gooseneck tube 11.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A battery shell sealing detection device for lithium battery production, comprising a device platform (1), characterized in that: A top seat (2) is fixed to the top of the equipment platform (1), and a mounting frame (4) is welded and fixed to the rear end of the top of the top seat (2); a top platform (3) is fixed to the front end of the top of the top seat (2), and a clamping structure for conveniently clamping and fixing a lithium battery shell workpiece is provided on the top platform (3); The clamping structure comprises a clamping seat (12), a rotating handle (13), a threaded sleeve (16), a bidirectional screw (17), a limiting groove (18) and an anti-skid pad (19); the interior of the top platform (3) is laterally movably connected with the bidirectional screw (17), and the two sides of the exterior of the bidirectional screw (17) are respectively threadedly connected with the threaded sleeve (16); the clamping seat (12) is symmetrically arranged on both sides of the top of the top platform (3); the limiting groove (18) is arranged inside the top of the top platform (3); the two ends of the left side of the clamping seat (12) are respectively glued and fixed with anti-skid pads (19); the right side of the bidirectional screw (17) passes through the interior of the right side of the top platform (3) and is fixed with the rotating handle (13).

2. A battery shell sealing detection device for lithium battery production according to claim 1, characterized in that: The limiting groove (18) passes through the interior of the top end of the top platform (3), and the top end of the threaded sleeve (16) passes through the interior of the limiting groove (18) and is fixedly connected to the bottom end of the clamping seat (12).

3. A battery shell sealing detection device for lithium battery production according to claim 1, characterized in that: A fixing foot (20) is fixed to the top end of the left side of the mounting frame (4), and a hanging ring (21) is provided through the bottom end of the fixing foot (20), a spring rope (23) is provided at the bottom end of the fixing foot (20), a hook (22) is fixed to the top end of the spring rope (23), and a marking pen (24) is provided at the bottom end of the spring rope (23).

4. A battery shell sealing detection device for lithium battery production according to claim 3, characterized in that: The hook (22) passes through the interior of the hanging ring (21), and the bottom end of the spring rope (23) is fixedly connected to the marking pen (24).

5. The battery shell sealing detection device for lithium battery production according to claim 1, characterized in that: A fixing frame (25) is fixed to the top end of the right side of the mounting frame (4), and a gooseneck tube (11) is fixed to the right side of the fixing frame (25). An LED lighting lamp (27) is fixed to the bottom end of the gooseneck tube (11), and a connecting wire (26) is arranged inside the LED lighting lamp (27).

6. A battery shell sealing detection device for lithium battery production according to claim 5, characterized in that: The bottom end of the connecting wire (26) is electrically connected to the LED lighting lamp (27), and the top end of the connecting wire (26) passes through the interior of the gooseneck tube (11).

7. A battery shell sealing detection device for lithium battery production according to claim 1, characterized in that: A hydraulic cylinder (8) is fixedly mounted on the top of the mounting frame (4), a pressure plate (5) is arranged at the top of the interior of the mounting frame (4), the output end of the bottom of the hydraulic cylinder (8) passes through the interior of the top of the mounting frame (4) and is fixedly connected to the top of the pressure plate (5), a sealing gasket is fixedly mounted on the bottom of the pressure plate (5), an air pump (15) is fixedly mounted on the top of the right side of the equipment platform (1), and an air supply pipe (10) is fixedly mounted on the output end of the air pump (15), a one-way valve (14) is fixedly mounted on the air supply pipe (10), the left side of the air supply pipe (10) is fixedly connected to the right side of the top of the pressure plate (5), guide rods (7) are vertically fixedly mounted on both sides of the top of the pressure plate (5), sliding sleeves (6) are fixedly mounted on both sides of the top of the mounting frame (4), and the sliding sleeves (6) pass through the interior of the top of the mounting frame (4), and the top of the guide rod (7) is slidably inserted into the interior of the sliding sleeve (6).

8. A battery shell sealing detection device for lithium battery production according to claim 7, characterized in that: A barometer (9) is fixed to the left side of the top end of the pressing plate (5), and the bottom end of the barometer (9) passes through the interior of the pressing plate (5).

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