Battery detection device

Abstract

The invention relates to the field of battery testing devices, in particular to a battery testing device which comprises a rack, a testing motor is fixed to the rack, a rotating disc is fixed to the output end of the testing motor, positioning grooves are evenly formed in the rotating disc, and fixing blocks rotationally connected with the positioning grooves are arranged in the positioning grooves. A fixing groove is formed in the fixing block, a fixing rod is further fixed to the fixing block, the fixing rod penetrates through the rotary disc and is rotationally connected with the rotary disc, a torsional spring is further arranged on the fixing rod, one end of the torsional spring is fixed to the fixing rod, the other end of the torsional spring is fixed to the rotary disc, and a fixing plate is further fixed to the bottom of the fixing rod. A fixing hole is further formed in the fixing plate, a rotating air cylinder is further fixed to the rack, a mounting plate is fixed to the tail end of a piston rod of the rotating air cylinder, and a rotating motor is fixed to the mounting plate. Through the device, bump detection can be carried out on six surfaces of the battery at the same time.

Description

Technical Field

[0001] The present invention relates to the field of battery testing devices, and in particular to a battery testing device. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream; lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable, but lithium batteries will bulge during the production process, so lithium batteries need to be tested before they are put on the market, and lithium batteries with bulging phenomena must be picked out.

[0003] Patent application number: CN202320050725.6 discloses a battery bulge detection device. During detection, as long as the standard thickness of the battery to be detected is known, that is, the thickness of the battery of this specification without bulge, a bracket movement distance is preset according to the standard thickness, that is, the target position of the bracket movement is determined, and then the data information obtained by the displacement sensor after the bracket moves to the target position can be used to determine whether the battery is of standard thickness or has bulges. However, this type of detection device can only detect whether the battery is bulging in one direction, and cannot confirm whether the battery is bulging in all directions.

[0004] The present invention is proposed in view of the deficiencies in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a battery detection device.

[0006] The present invention can be implemented by the following technical solutions:

[0007] The invention discloses a battery detection device, comprising a frame, a test motor is fixed on the frame, a turntable is fixed on the output end of the test motor, positioning grooves are evenly arranged on the turntable, a fixing block rotatably connected to the positioning groove is arranged in the positioning groove, a fixing groove is arranged on the fixing block, a fixing rod is also fixed on the fixing block, the fixing rod passes through the turntable and is rotatably connected to the turntable, a torsion spring is also arranged on the fixing rod, one end of the torsion spring is fixed to the fixing rod, and the other end of the torsion spring is fixed to the turntable, a fixing plate is also fixed to the bottom of the fixing rod, and a fixing hole is also arranged on the fixing plate, a rotating cylinder is also fixed on the frame, a mounting plate is fixed to the end of the piston rod of the rotating cylinder, a rotating motor is fixed on the mounting plate, a rotating plate is fixed on the output end of the rotating motor, and a fixing plate connected to the fixed plate is fixed on the rotating plate The fixing column used in conjunction with the fixed hole, the frame above the turntable is also fixed with a top plate, a positioning plate is provided under the top plate, a positioning roller is provided under the positioning plate, a plurality of positioning rods are also fixed on the positioning plate, the positioning rods pass through the top plate and are slidably connected to the top plate, a plurality of positioning springs are fixed between the positioning plate and the top plate, a plurality of lifting cylinders are also fixed on the frame above the turntable, the ends of the piston rods of the lifting cylinders are fixed to the lifting plate, limiting cylinders are fixed on both sides of the lifting plate, the ends of the piston rods of the limiting cylinders are fixed to limiting plates, a limiting block is provided on one side of the limiting plate, a plurality of limiting rods are fixed on the limiting block, the limiting rods pass through the limiting plate and are slidably connected to the limiting plate, a plurality of limiting springs are fixed between the limiting block and the limiting plate, and rollers are provided on the limiting blocks.Place the battery to be tested in the fixed slot of the fixed block, and drive the turntable to rotate through the test motor. The battery rotates with the turntable and moves to the positioning roller position. Since the distance from the bottom of the positioning roller to the bottom of the fixed slot is equal to the height of the battery, the battery does not contact the positioning roller when there are no bulges on the upper and lower sides of the battery. When there are bulges on the upper and lower sides of the battery, the battery pushes the positioning roller to rise, and the battery continues to move with the turntable. After the battery moves to the bottom of the lifting plate, the lifting cylinder is started, the piston rod of the lifting cylinder is extended, and the lifting plate descends. Since the initial positions of the two rollers are close to the surface of the battery, when the lifting plate descends, the rollers stick to the surface of the battery and descend, and the rollers do not push the limit rod to move, that is, there is no bulge in the length direction of the battery. After the detection on both sides of the length direction of the battery is completed, the rollers rise to the battery The rotating cylinder is started, the piston rod on the rotating cylinder is extended, the fixed column on the rotating plate is inserted into the fixed hole on the fixed plate, the rotating motor drives the rotating plate to rotate, the fixed rod rotates 90 degrees, and the battery rotates 90 degrees with the fixed block. After the battery rotates, the two limit cylinders are started, the piston rod on the limit cylinder is extended, and the roller moves close to the battery surface. The lifting cylinder is started, the piston rod on the lifting cylinder is extended, the roller descends, and the roller moves along the battery surface. If the battery is not bulging, the roller will not push the limit rod to move. If the two end faces of the battery in the width direction are bulging, the roller contacts the bulging position, and the roller pushes the limit rod to move. Through this device, the six sides of the battery can be detected for bulging at the same time, which greatly improves the accuracy of detection and prevents bulging batteries from entering the market.

[0008] Preferably, a stop block is fixed on the fixing rod, and a stop plate used in conjunction with the stop block is fixed on the rotating disk. The stop block cooperates with the stop plate to achieve that after the torsion spring drives the fixing rod to rotate, when the battery moves below the lifting plate, the roller moves along the surface of the battery.

[0009] Preferably, a positioning nut threadedly connected to the positioning rod is also provided on the positioning rod above the top plate.

[0010] Preferably, the limiting rods are each provided with limiting nuts threadedly connected to the limiting rods.

[0011] Preferably, displacement sensors are fixed on the limit rod and the positioning rod, and the displacement sensors are used to confirm whether the positioning rod and the limit rod move.

[0012] Preferably, a feeding plate is fixed on the frame, a screw and a slide rod are also provided on the frame, the screw rod is driven to rotate by a feeding motor, a push plate is also provided on the screw rod, the screw rod passes through the push plate and is threadedly connected to the push plate, the slide rod passes through the push plate and is slidably connected to the push plate, a support plate is also fixed on one side of the feeding plate, a feeding cylinder is also fixed on the frame on the other side of the feeding plate, and a feeding block is fixed at the end of the piston rod of the feeding cylinder. Each battery is moved to the feeding plate by a conveyor belt, the screw rod is driven to rotate by the feeding motor, the push plate moves in the direction of the screw rod, the push plate pushes the battery to move, after the outermost battery moves to the feeding block position, the feeding cylinder is started, the feeding block moves, and the feeding block pushes the outermost battery to move into the fixed groove of the fixed block.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The device can simultaneously detect bulges on the six sides of the battery, greatly improving the accuracy of detection and preventing bulging batteries from entering the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is another structural schematic diagram of the present invention from another angle;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0020] In the figure: 1. Feeding plate; 2. Sliding rod; 3. Screw rod; 4. Pushing plate; 5. Feeding motor; 6. Support plate; 7. Feeding cylinder; 8. Feeding block; 9. Turntable; 10. Positioning slot; 11. Fixing block; 12. Fixing slot; 13. Fixing rod; 14. Torsion spring; 15. Stop block; 16. Stop plate; 17. Fixing plate; 18. Fixing hole; 19. Rotating cylinder; 20. Mounting plate; 21. Rotating motor 1. Machine; 22. Rotating plate; 23. Fixed column; 24. Test motor; 25. Top plate; 26. Positioning plate; 27. Positioning rod; 28. Positioning nut; 29. ​​Positioning spring; 30. Positioning roller; 31. Lifting cylinder; 32. Lifting plate; 33. Limiting cylinder; 34. Limiting plate; 35. Limiting block; 36. Limiting rod; 37. Limiting spring; 38. Limiting nut; 39. Roller; 40. Frame; DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0022] Embodiment 1:

[0023] like Figures 1 to 4As shown, the present embodiment discloses a battery detection device, comprising a frame 40, on which a test motor 24 is fixed, a turntable 9 is fixed at the output end of the test motor 24, positioning grooves 10 are evenly arranged on the turntable 9, a fixing block 11 is arranged in the positioning groove 10 and is rotatably connected to the positioning groove 10, a fixing groove 12 is arranged on the fixing block 11, a fixing rod 13 is also fixed on the fixing block 11, the fixing rod 13 passes through the turntable 9 and is rotatably connected to the turntable 9, a torsion spring 14 is also arranged on the fixing rod 13, one end of the torsion spring 14 is fixed to the fixing rod 13, and the other end of the torsion spring 14 is fixed to the turntable 9, a fixing plate 17 is also fixed to the bottom of the fixing rod 13, and a fixing hole 18 is also arranged on the fixing plate 17, a rotating cylinder 19 is also fixed on the frame 40, a mounting plate 20 is fixed to the end of the piston rod of the rotating cylinder 19, a rotating motor 21 is fixed on the mounting plate 20, a rotating plate 22 is fixed to the output end of the rotating motor 21, and a fixing hole 18 is fixed on the rotating plate 22 A top plate 25 is fixed to the frame 40 above the turntable 9 in cooperation with the fixed column 23, a positioning plate 26 is arranged below the top plate 25, a positioning roller 30 is arranged below the positioning plate 26, a plurality of positioning rods 27 are fixed to the positioning plate 26, the positioning rods 27 pass through the top plate 25 and are slidably connected to the top plate 25, a plurality of positioning springs 29 are fixed between the positioning plate 26 and the top plate 25, a plurality of lifting cylinders 31 are fixed to the frame 40 above the turntable 9, and the lifting cylinders 31 are fixed to the frame 40 above the turntable 9. The ends of the piston rods of the lifting plates 32 are fixed to the lifting plates 32, the limiting cylinders 33 are fixed on both sides of the lifting plates 32, the ends of the piston rods of the limiting cylinders 33 are fixed to the limiting plates 34, one side of the limiting plates 34 is provided with limiting blocks 35, a plurality of limiting rods 36 are fixed on the limiting blocks 35, the limiting rods 36 pass through the limiting plates 34 and are slidably connected to the limiting plates 34, a plurality of limiting springs 37 are fixed between the limiting blocks 35 and the limiting plates 34, and rollers 39 are provided on the limiting blocks 35.The battery to be tested is placed in the fixed groove 12 of the fixed block 11, and the turntable 9 is driven to rotate by the test motor 24. The battery rotates with the turntable 9 and moves to the position of the positioning roller 30. Since the distance from the bottom of the positioning roller 30 to the bottom of the fixed groove 12 is equal to the height of the battery, when there is no bulge on the upper and lower sides of the battery, the battery does not contact the positioning roller 30. When there is a bulge on the upper and lower sides of the battery, the battery pushes the positioning roller 30 to rise, and the battery continues to move with the turntable 9. After the battery moves to the bottom of the lifting plate 32, the lifting cylinder 31 is started, the piston rod of the lifting cylinder 31 is extended, and the lifting plate 32 is lowered. Since the initial positions of the two rollers 39 are close to the surface of the battery, when the lifting plate 32 is lowered, the rollers 39 are attached to the surface of the battery and descend, and the rollers 39 do not push the limit rod 36 to move, that is, there is no bulge in the length direction of the battery. After the detection on both sides of the length direction of the battery is completed, the rollers 39 rise to the top of the battery. The rotating cylinder 19 is started, the piston rod on the rotating cylinder 19 is extended, the fixed column 23 on the rotating plate 22 is inserted into the fixed hole 18 on the fixed plate 17, the rotating motor 21 drives the rotating plate 22 to rotate, the fixed rod 13 rotates 90 degrees, and the battery rotates 90 degrees with the fixed block 11. After the battery rotates, the two limit cylinders 33 are started, the piston rod on the limit cylinder 33 is extended, and the roller 39 moves close to the battery surface. The lifting cylinder 31 is started, the piston rod on the lifting cylinder 31 is extended, and the roller 39 descends, and the roller 39 moves along the battery surface. When the battery is not bulging, the roller 39 will not push the limit rod 36 to move. When the two end faces of the battery in the width direction are bulging, the roller 39 contacts the bulging position, and the roller 39 pushes the limit rod 36 to move. Through this device, the six surfaces of the battery can be simultaneously detected for bulging, which greatly improves the accuracy of the detection and prevents bulging batteries from entering the market.

[0024] A stop block 15 is also fixed on the fixed rod 13, and a stop plate 16 used in conjunction with the stop block 15 is fixed on the turntable 9. The stop block 15 cooperates with the stop plate 16 to achieve that after the torsion spring 14 drives the fixed rod 13 to rotate, when the battery moves below the lifting plate 32, the roller 39 moves along the surface of the battery.

[0025] A positioning nut 28 threadedly connected to the positioning rod 27 is further provided on the positioning rod 27 above the top plate 25 .

[0026] The limiting rods 36 are each provided with a limiting nut 38 which is threadedly connected to the limiting rods 36 .

[0027] Wherein, displacement sensors are fixed on both the limit rod 36 and the positioning rod 27. The displacement sensors are used to confirm whether the positioning rod 27 and the limit rod 36 move.

[0028] Embodiment 2:

[0029] This embodiment discloses a battery detection device. On the basis of the structure and principle of the embodiment 1, a feed plate 1 is fixed on the frame 40 of this embodiment, a screw rod 3 and a slide rod 2 are also arranged on the frame 40, the screw rod 3 is driven to rotate by the feed motor 5, a push plate 4 is also arranged on the screw rod 3, the screw rod 3 passes through the push plate 4 and is threadedly connected with the push plate 4, the slide rod 2 passes through the push plate 4 and is slidably connected with the push plate 4, a support plate 6 is also fixed on one side of the feed plate 1, a feed cylinder 7 is also fixed on the frame 40 on the other side of the feed plate 1, and a feed block 8 is fixed at the end of the piston rod of the feed cylinder 7. Each battery is moved to the feed plate 1 by a conveyor belt (not shown), the screw rod 3 is driven to rotate by the feed motor 5, the push plate 4 moves in the direction of the screw rod 3, and the push plate 4 pushes the battery to move, and after the outermost battery moves to the position of the feed block 8, the feed cylinder 7 is started, the feed block 8 moves, and the feed block 8 pushes the outermost battery to move into the fixed groove 12 of the fixed block 11.

[0030] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A battery detection device, comprising a frame, characterized in that: A test motor is fixed on the frame, a turntable is fixed on the output end of the test motor, positioning grooves are evenly arranged on the turntable, a fixing block rotatably connected to the positioning groove is arranged in the positioning groove, a fixing groove is arranged on the fixing block, a fixing rod is also fixed on the fixing block, the fixing rod passes through the turntable and is rotatably connected to the turntable, a torsion spring is also arranged on the fixing rod, one end of the torsion spring is fixed to the fixing rod, and the other end of the torsion spring is fixed to the turntable, a fixing plate is also fixed to the bottom of the fixing rod, and a fixing hole is also arranged on the fixing plate, a rotating cylinder is also fixed on the frame, a mounting plate is fixed to the end of the piston rod of the rotating cylinder, a rotating motor is fixed on the mounting plate, a rotating plate is fixed on the output end of the rotating motor, and a fixing column used in conjunction with the fixing hole is fixed on the rotating plate A top plate is also fixed on the frame above the turntable, a positioning plate is provided under the top plate, a positioning roller is provided under the positioning plate, a plurality of positioning rods are fixed on the positioning plate, the positioning rods pass through the top plate and are slidably connected to the top plate, a plurality of positioning springs are fixed between the positioning plate and the top plate, a plurality of lifting cylinders are also fixed on the frame above the turntable, the ends of the piston rods of the lifting cylinders are fixed to the lifting plate, limit cylinders are fixed on both sides of the lifting plate, the ends of the piston rods of the limit cylinders are fixed to limit plates, a limit block is provided on one side of the limit plate, a plurality of limit rods are fixed on the limit block, the limit rods pass through the limit plate and are slidably connected to the limit plate, a plurality of limit springs are fixed between the limit block and the limit plate, and rollers are provided on the limit blocks.

2. The battery detection device according to claim 1, characterized in that: A stop block is also fixed on the fixing rod, and a stop plate used in conjunction with the stop block is fixed on the rotating disk.

3. The battery detection device according to claim 1, characterized in that: The positioning rod above the top plate is also provided with a positioning nut which is threadedly connected with the positioning rod.

4. The battery detection device according to claim 1, characterized in that: The limiting rods are all provided with limiting nuts which are threadedly connected with the limiting rods.

5. The battery detection device according to claim 1, characterized in that: Displacement sensors are fixed on both the limit rod and the positioning rod.

6. The battery detection device according to claim 1, characterized in that: A feeding plate is also fixed on the frame, and a screw rod and a sliding rod are also provided on the frame. The screw rod is driven to rotate by a feeding motor, and a push plate is also provided on the screw rod. The screw rod passes through the push plate and is threadedly connected to the push plate, and the sliding rod passes through the push plate and is slidably connected to the push plate. A support plate is also fixed on one side of the feeding plate, and a feeding cylinder is fixed on the frame on the other side of the feeding plate, and a feeding block is fixed to the end of the piston rod of the feeding cylinder.

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