Polishing equipment for inner wall of hole of battery box

Abstract

The invention relates to the technical field of grinding equipment, in particular to battery box hole inner wall grinding equipment which comprises an abrasive paper belt for grinding and two vertically-arranged arc-shaped guide plates, mounting plates are horizontally and fixedly connected to the tops and the bottoms of the guide plates, sliding grooves are formed in one sides of the mounting plates, sliding blocks are arranged in the sliding grooves in a sliding fit mode, and the sliding blocks are arranged in the sliding grooves in a sliding fit mode. A spring is arranged in the sliding groove to apply elastic force to the sliding block, and a connecting plate is fixedly connected to the outer portion of the sliding block. According to the device, the contact position of the inner wall of the heat dissipation hole on the abrasive paper belt is changed through the winding shaft, the vertical height of the contact between the abrasive paper belt and the inner wall of the heat dissipation hole is changed by moving the abrasive paper belt back and forth in the vertical direction, it is ensured that abrasive particles at each position of the abrasive paper belt can polish the inner wall of the heat dissipation hole, and the speed of local damage to the abrasive paper belt is reduced; and the service life of the polishing mechanism is prolonged, manual adjustment of workers is not needed, and therefore the labor intensity of the workers is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and in particular to a battery box hole inner wall grinding equipment. Background Art

[0002] The battery box of a car is a storage device used to hold car batteries and has the ability to protect the batteries. During the manufacture of the car battery box, multiple heat dissipation holes are opened on the box body to dissipate heat when the battery is working. After the heat dissipation holes are opened, the inner wall has defects such as burrs and unevenness, which need to be solved by grinding.

[0003] The way most factories grind away burrs inside heat dissipation holes is as follows: workers use a small grinding wheel grinder to grind the inner wall of the heat dissipation hole separately. After grinding the inner wall of one side of the hole, they switch to the other side for grinding. During the entire grinding process, workers are required to constantly change the contact position of the inner wall of the hole on the grinding wheel to prevent local damage to the grinding wheel. However, this working method also increases the labor intensity of workers. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcoming of high labor intensity in the grinding of the inner wall of the heat dissipation hole of the battery box in the prior art, and to propose a battery box hole inner wall grinding device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A battery box hole inner wall grinding device is designed, including a sandpaper belt for grinding and two vertically arranged arc-shaped guide plates, the top and bottom of the guide plate are horizontally fixedly connected to a mounting plate, one side of the mounting plate is provided with a slide groove, a slider is slidably matched in the slide groove, a spring is provided in the slide groove to apply elastic force to the slider, a connecting plate is fixedly connected to the outside of the slider, a plurality of rollers are rotatably mounted on the connecting plate, two winding shafts are rotatably mounted on the opposite sides of the two mounting plates, the sandpaper belt covers the rollers, the two ends of the sandpaper belt are wound around the outside of the two winding shafts, the winding directions of the sandpaper belts on the two winding shafts are opposite, a driven gear is fixedly connected to the top of the two winding shafts, a transmission rack is slidably matched on the outer wall of the mounting plate, and the transmission rack is meshed with the driven gear.

[0006] Preferably, a linear displacement structure is provided on the mounting plate for driving the transmission rack to perform linear reciprocating motion, the linear displacement structure includes an inner spline tube and a rectangular sliding frame, slides are horizontally fixedly connected to both sides of the top of the mounting plate, the sliding frame is slidably fitted on the slides, the transmission rack is fixedly connected to the outer wall of the sliding frame, the inner spline tube is located inside the sliding frame and is rotatably mounted on the mounting plate, an incomplete gear is fixedly connected to the outside of the inner spline tube, a first driven rack and a second driven rack are fixedly connected to the inner wall of the sliding frame, the first driven rack and the second driven rack are parallel to each other, and both are matched with the incomplete gear.

[0007] Preferably, a driving structure is provided on one side of the mounting plate to drive the inner spline tube to rotate, the driving structure includes a vertically arranged vertical plate, a slide rail is vertically fixed to the outer wall of the vertical plate, a sliding seat is fixed to one side of the mounting plate, the sliding seat slidably fits on the slide rail, a fixed plate is horizontally fixed to the vertical plate, a spline shaft is rotatably mounted on the fixed plate, the spline shaft slidably fits in the inner spline tube, a motor is fixed to the vertical plate, a driving bevel gear is fixed to the output end of the motor, a driven bevel gear is fixed to the outer wall of the spline shaft, and the driving bevel gear matches the driven bevel gear.

[0008] Preferably, a stroke structure is provided on the top of the vertical plate to drive the vertical plate to move horizontally, and the stroke structure includes a base, the vertical plate is slidably fitted on the bottom surface of the base, baffles are slidably fitted on both sides of the base, a stroke gear is rotatably installed on the bottom surface of the baffle, the spline shaft is coaxially fixed to the stroke gear, and stroke racks are fixed on both sides of the base, and the stroke gear matches the stroke rack.

[0009] Preferably, a handle for holding is fixedly connected to the top of the base.

[0010] Preferably, an internal threaded tube is vertically fixed on the mounting plate, a reciprocating screw is fixed on the bottom end of the spline shaft, and the reciprocating screw thread is fitted in the internal threaded tube.

[0011] Preferably, a wedge-shaped guide block is fixedly connected to the bottom of the mounting plate.

[0012] The present invention proposes a battery box hole inner wall grinding device, which has the beneficial effect that: the device changes the contact position of the inner wall of the heat dissipation hole on the sandpaper belt through a winding shaft, and changes the vertical height of the contact between the sandpaper belt and the inner wall of the heat dissipation hole by moving the sandpaper belt back and forth in the vertical direction, thereby ensuring that the abrasive particles in each part of the sandpaper belt can grind the inner wall of the heat dissipation hole, thereby reducing the speed of local damage of the sandpaper belt, extending the service life of the grinding mechanism, and eliminating the need for manual adjustment by workers, thereby reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a battery box hole inner wall grinding device proposed by the present invention.

[0014] Figure 2 This is a front view of a battery box hole inner wall grinding device proposed by the present invention.

[0015] Figure 3 A battery box hole inner wall grinding device proposed by the present invention Figure 2 AA section view.

[0016] Figure 4A side view of a battery box hole inner wall grinding device proposed by the present invention.

[0017] Figure 5 A battery box hole inner wall grinding device proposed by the present invention Figure 4 Middle BB section.

[0018] Figure 6 Schematic diagram of a grinding mechanism of a battery box hole inner wall grinding device proposed by the present invention Figure 1 .

[0019] Figure 7 A battery box hole inner wall grinding device proposed by the present invention Figure 6 Enlarged view of point C in the middle.

[0020] Figure 8 Schematic diagram of a grinding mechanism of a battery box hole inner wall grinding device proposed by the present invention Figure 2 .

[0021] In the figure: 1. base; 2. handle; 3. travel rack; 4. baffle; 5. vertical plate; 6. slide rail; 7. sliding seat; 8. mounting plate; 9. slide groove; 10. slider; 11. spring; 12. connecting plate; 13. roller; 14. guide block; 15. guide plate; 16. sandpaper belt; 17. winding shaft; 18. driven gear; 19. slide plate; 20. sliding frame; 201. first driven rack; 202. second driven rack; 21. internal spline tube; 22. incomplete gear; 23. spline shaft; 24. driven bevel gear; 25. travel gear; 26. fixed plate; 27. transmission rack; 28. motor; 29. ​​driving bevel gear; 30. reciprocating screw; 31. internal threaded tube. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-Figure 5 A battery box hole inner wall grinding device comprises a base 1, a handle 2 for holding is fixedly connected to the top of the base 1, grinding mechanisms for grinding the heat dissipation holes of the battery box are arranged on both sides of the base 1, and the grinding mechanism comprises a vertical plate 5, the vertical plate 5 is slidably fitted on the bottom surface of the base 1, baffles 4 are slidably fitted on both sides of the base 1, a travel gear 25 is rotatably installed on the bottom surface of the baffle 4, a fixed plate 26 is horizontally fixedly connected to the vertical plate 5, the bottom end of the travel gear 25 is rotatably connected to the fixed plate 26, a travel rack 3 is fixedly connected to the outer side of the base 1, and the travel gear 25 matches the travel rack 3.

[0024] When the travel gear 25 rotates, the travel gear 25 moves on the travel rack 3, thereby driving the vertical plate 5 to move horizontally, and finally making the grinding mechanism perform a scanning motion in the heat dissipation hole of the battery box to grind the inner wall of the heat dissipation hole.

[0025] like Figure 2-Figure 5 As shown, the grinding mechanism includes a sandpaper belt 16 for grinding and two vertically arranged arc-shaped guide plates 15. The top and bottom of the guide plate 15 are horizontally fixed with a mounting plate 8. A slide groove 9 is opened on one side of the mounting plate 8. A slider 10 is slidably fitted in the slide groove 9. A spring 11 is provided in the slide groove 9 to apply elastic force to the slider 10. A connecting plate 12 is fixed to the outside of the slider 10. A plurality of rollers 13 are rotatably mounted on the connecting plate 12. Two winding shafts 17 are rotatably mounted on the opposite sides of the two mounting plates 8. The sandpaper belt 16 covers the rollers 13. The two ends of the sandpaper belt 16 are wound around the outside of the two winding shafts 17. The winding directions of the sandpaper belt 16 on the two winding shafts 17 are opposite. A driven gear 18 is fixed to the top of the two winding shafts 17. A transmission rack 27 is slidably fitted on the outer wall of the mounting plate 8, and the transmission rack 27 is meshed with the driven gear 18.

[0026] When the transmission rack 27 moves linearly, the transmission rack 27 drives the two driven gears 18 to rotate synchronously. The rotation of the driven gear 18 drives the winding shaft 17 to rotate. When the winding shaft 17 rotates, the sandpaper belt 16 is wound up so that the sandpaper belt 16 slides on the roller 13.

[0027] like Figure 6-Figure 8 As shown, a linear displacement structure is provided on the mounting plate 8 for driving the transmission rack 27 to perform linear reciprocating motion. The linear displacement structure includes an inner spline tube 21 and a rectangular sliding frame 20. Slide plates 19 are horizontally fixedly connected to both sides of the top of the mounting plate 8. The sliding frame 20 is slidably fitted on the slide plate 19. The transmission rack 27 is fixedly connected to the outer wall of the sliding frame 20. The inner spline tube 21 is located inside the sliding frame 20 and is rotatably mounted on the mounting plate 8. A spline shaft 23 is slidably fitted inside the inner spline tube 21. The top end of the spline shaft 23 is coaxially fixed to the travel gear 25. An incomplete gear 22 is fixedly connected to the outside of the inner spline tube 21. A first driven rack 201 and a second driven rack 202 are fixedly connected to the inner wall of the sliding frame 20. The first driven rack 201 and the second driven rack 202 are parallel to each other and both are matched with the incomplete gear 22.

[0028] When the spline shaft 23 rotates, it will drive the inner spline tube 21 to rotate, and the inner spline tube 21 will drive the incomplete gear 22 to rotate. During the rotation of the incomplete gear 22, it will intermittently drive the first driven rack 201 and the second driven rack 202 to move in opposite directions, so that the sliding frame 20 slides back and forth on the slide plate 19, driving the transmission rack 27 to perform linear reciprocating motion, and finally making the sandpaper belt 16 on the roller 13 move back and forth in the horizontal direction.

[0029] like Figure 5 As shown, an internal threaded tube 31 is vertically fixed on the mounting plate 8 , a reciprocating screw 30 is fixed on the bottom end of the spline shaft 23 , and the reciprocating screw 30 is threadably fitted in the internal threaded tube 31 .

[0030] During the rotation of the spline shaft 23, the reciprocating screw 30 will be driven to rotate. Since the reciprocating screw 30 is threadedly engaged in the internal threaded tube 31 and the internal threaded tube 31 is fixed on the mounting plate 8 and cannot rotate, during the rotation of the reciprocating screw 30, the internal threaded tube 31 will be driven to perform linear reciprocating motion in the vertical direction, thereby causing the sandpaper belt 16 to move back and forth in the vertical direction.

[0031] A motor 28 is fixedly connected to the vertical plate 5 , a driving bevel gear 29 is fixedly connected to the output end of the motor 28 , a driven bevel gear 24 is fixedly connected to the outer wall of the spline shaft 23 , and the driving bevel gear 29 matches the driven bevel gear 24 .

[0032] When the motor 28 is working, it drives the active bevel gear 29 to rotate. The rotation of the active bevel gear 29 drives the driven bevel gear 24 to rotate, thereby driving the spline shaft 23 to rotate.

[0033] Workflow and working principle: The staff holds the handle 2 and inserts the device into the heat dissipation hole of the battery box. Since a wedge-shaped guide block 14 is fixed to the bottom of the mounting plate 8, the guide block 14 guides the device into the heat dissipation hole, making it easier for the device to enter the hole.

[0034] After the device enters the heat dissipation hole of the battery box, under the elastic force of the spring 11, the roller 13 applies force to the sandpaper belt 16, and the sandpaper belts 16 on both sides of the base 1 abut against the inner walls on both sides of the heat dissipation hole.

[0035] The motor 28 is started. When the motor 28 is working, it drives the active bevel gear 29 to rotate. The active bevel gear 29 rotates to drive the driven bevel gear 24 to rotate, thereby driving the spline shaft 23 to rotate.

[0036] When the spline shaft 23 rotates, it will drive the inner spline tube 21 to rotate, and the inner spline tube 21 will drive the incomplete gear 22 to rotate. During the rotation of the incomplete gear 22, it will intermittently drive the first driven rack 201 and the second driven rack 202 to move in opposite directions, so that the sliding frame 20 slides back and forth on the slide plate 19 to drive the transmission rack 27 to make a linear reciprocating motion. The transmission rack 27 will drive the two driven gears 18 to rotate synchronously. The rotation of the driven gear 18 drives the winding shaft 17 to rotate. When the winding shaft 17 rotates, the sandpaper belt 16 will be wound up, and finally the sandpaper belt 16 on the roller 13 moves back and forth in the horizontal direction, so that the sandpaper belt 16 can horizontally grind the inner wall of the heat dissipation hole.

[0037] During the horizontal grinding process, the two winding shafts 17 use their forward and reverse rotations to keep the sandpaper belt 16 winding at all times, changing the contact position of the inner wall of the heat dissipation hole on the sandpaper belt 16 to prevent the sandpaper belt 16 from being locally worn too quickly.

[0038] During the rotation of the spline shaft 23, the reciprocating screw 30 will be driven to rotate. Since the thread of the reciprocating screw 30 is engaged in the internal threaded tube 31 and the internal threaded tube 31 is fixed on the mounting plate 8 and cannot rotate, during the rotation of the reciprocating screw 30, the internal threaded tube 31 will be driven to perform linear reciprocating motion in the vertical direction, thereby causing the sandpaper belt 16 to move back and forth in the vertical direction to change the vertical height of the sandpaper belt 16 in contact with the inner wall of the heat dissipation hole.

[0039] The contact position of the inner wall of the heat dissipation hole on the sandpaper belt 16 is changed by the winding shaft 17, and the vertical height of the contact between the sandpaper belt 16 and the inner wall of the heat dissipation hole is changed by moving the sandpaper belt 16 back and forth in the vertical direction, thereby ensuring that the abrasive particles at each location of the sandpaper belt 16 can grind the inner wall of the heat dissipation hole, thereby reducing the speed of local damage of the sandpaper belt 16 and extending the service life of the grinding mechanism.

[0040] When the spline shaft 23 rotates, it will drive the travel gear 25 to rotate. The rotation of the travel gear 25 will move the travel rack 3, thereby driving the vertical plate 5 to move horizontally, and finally making the grinding mechanism perform a scanning motion in the heat dissipation hole of the battery box to ensure that the inner wall of the heat dissipation hole is fully ground.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery box hole inner wall grinding device, characterized in that: The invention comprises a sandpaper belt (16) for grinding and two vertically arranged circular arc-shaped guide plates (15), wherein the top and bottom of the guide plates (15) are both horizontally fixedly connected to mounting plates (8), a slide groove (9) is provided on one side of the mounting plate (8), a slider (10) is slidably matched in the slide groove (9), a spring (11) is provided in the slide groove (9) to apply elastic force to the slider (10), a connecting plate (12) is fixedly connected to the outside of the slider (10), and a plurality of rollers (13) are rotatably mounted on the connecting plate (12). ), two winding shafts (17) are rotatably mounted on opposite sides of the two mounting plates (8), a sandpaper belt (16) is covered on the rotating roller (13), two ends of the sandpaper belt (16) are wound around the outside of the two winding shafts (17), the winding directions of the sandpaper belts (16) on the two winding shafts (17) are opposite, the top ends of the two winding shafts (17) are fixedly connected with driven gears (18), and a transmission rack (27) is slidably matched on the outer wall of the mounting plate (8), and the transmission rack (27) is meshed with the driven gear (18).

2. The battery box hole inner wall grinding device according to claim 1 is characterized in that: The mounting plate (8) is provided with a linear displacement structure for driving the transmission rack (27) to perform linear reciprocating motion. The linear displacement structure comprises an inner spline tube (21) and a rectangular sliding frame (20). Slide plates (19) are horizontally fixedly connected to both sides of the top of the mounting plate (8). The sliding frame (20) is slidably fitted on the slide plates (19). The transmission rack (27) is fixedly connected to the outer wall of the sliding frame (20). The inner spline tube (21) is located inside the sliding frame (20) and is rotatably mounted on the mounting plate (8). An incomplete gear (22) is fixedly connected to the outside of the inner spline tube (21). A first driven rack (201) and a second driven rack (202) are fixedly connected to the inner wall of the sliding frame (20). The first driven rack (201) and the second driven rack (202) are parallel to each other and both are fitted with the incomplete gear (22).

3. The battery box hole inner wall grinding device according to claim 2, characterized in that: A driving structure is provided on one side of the mounting plate (8) for driving the inner spline tube (21) to rotate, the driving structure comprising a vertically arranged vertical plate (5), a slide rail (6) being vertically fixedly connected to the outer wall of the vertical plate (5), a sliding seat (7) being fixedly connected to one side of the mounting plate (8), the sliding seat (7) being slidably fitted on the slide rail (6), a fixing plate (26) being horizontally fixedly connected to the vertical plate (5), a spline shaft (23) being rotatably mounted on the fixing plate (26), the spline shaft (23) being slidably fitted in the inner spline tube (21), a motor (28) being fixedly connected to the vertical plate (5), a driving bevel gear (29) being fixedly connected to the output end of the motor (28), a driven bevel gear (24) being fixedly connected to the outer wall of the spline shaft (23), the driving bevel gear (29) matching the driven bevel gear (24).

4. The battery box hole inner wall grinding device according to claim 3 is characterized in that: A stroke structure is provided on the top of the vertical plate (5) for driving the vertical plate (5) to move horizontally, the stroke structure comprising a base (1), the vertical plate (5) is slidably engaged with the bottom surface of the base (1), baffles (4) are slidably engaged on both sides of the base (1), a stroke gear (25) is rotatably mounted on the bottom surface of the baffle (4), the spline shaft (23) is coaxially fixed to the stroke gear (25), and stroke racks (3) are fixedly connected on both sides of the base (1), and the stroke gear (25) matches the stroke rack (3).

5. The battery box hole inner wall grinding device according to claim 4, characterized in that: A handle (2) for holding is fixedly connected to the top of the base (1).

6. The battery box hole inner wall grinding device according to claim 5, characterized in that: An internal threaded tube (31) is vertically fixedly connected to the mounting plate (8), a reciprocating screw rod (30) is fixedly connected to the bottom end of the spline shaft (23), and the reciprocating screw rod (30) is threadably engaged in the internal threaded tube (31).

7. The battery box hole inner wall grinding device according to claim 6, characterized in that: A wedge-shaped guide block (14) is fixedly connected to the bottom of the mounting plate (8).

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