Casting polishing device for polishing inner side hole wall and chamfer of casting

Abstract

The invention relates to the technical field of grinding equipment, and discloses a casting grinding device for grinding inner side hole walls and chamfers of castings, which comprises a base, two groups of symmetrically distributed side plates are fixedly mounted on the base, a supporting plate is arranged on the side plates, and a pressing plate is arranged on the supporting plate. A first electric telescopic rod used for fixing the position of the supporting plate is arranged on the base, two sets of moving blocks are installed on the base in a sliding mode, a servo module used for driving the two sets of moving blocks to synchronously and reversely move is arranged on the base, and positioning rods are in threaded connection with the moving blocks; second electric telescopic rods are fixedly installed on the side plates, and a lifting plate is jointly and fixedly installed at the output ends of the two second electric telescopic rods. The casting positioning device has the beneficial effects that a casting is supported through the supporting plate and the universal wheels, the casting is pushed to move through the positioning rod for positioning, it is guaranteed that the casting can stably move along with the positioning rod, the casting positioning speed is increased, and the positioning difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and specifically to a grinding device for grinding the inner wall and chamfer of castings. Background Technology

[0002] Castings are metal shaped objects obtained by various casting methods. They are objects with a certain shape, size and properties obtained by pouring, injecting, sucking or other casting methods into a pre-prepared mold after smelting liquid metal, cooling and then grinding and other subsequent processing methods.

[0003] After the casting is formed, the inner wall of the hole usually needs to be ground and chamfered. Existing equipment usually grinds along the inner wall of the through hole using a small grinding disc. Therefore, the rotation axis of the grinding disc needs to be aligned with the axis of the through hole. Existing equipment has difficulty in quickly locating the position of the through hole, which reduces the efficiency of casting grinding. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for grinding castings, thereby achieving high grinding efficiency.

[0005] The objective of this invention can be achieved through the following technical solutions: A casting grinding device for grinding the inner hole wall and chamfer of castings includes a base, on which two sets of symmetrically distributed side plates are fixedly installed, a support plate is provided on the side plates, a pressure plate is provided on the support plate, a first electric telescopic rod for fixing the position of the support plate is provided on the base, two sets of moving blocks are slidably installed on the base, and a servo module is provided on the base to drive the two sets of moving blocks to move synchronously in opposite directions, and a positioning rod is threadedly connected to the moving blocks; A second electric telescopic rod is fixedly installed on the side plate, and a lifting plate is fixedly installed on the output ends of the two sets of second electric telescopic rods. A first motor is fixedly installed on the lifting plate. The output shaft axis of the first motor is located in the symmetry plane of the moving block. A base plate is fixedly installed on the output shaft of the first motor. A third electric telescopic rod is fixedly installed on the base plate. A support plate is fixedly installed on the output end of the third electric telescopic rod. A power shaft driven by the second motor is rotatably installed on the support plate. Two sets of grinding discs are provided on the power shaft.

[0006] As a further embodiment of the present invention: a limiting groove is provided on the side plate, a horizontal plate is slidably installed in the limiting groove, one end of the horizontal plate is fixedly connected to the support plate, and multiple sets of universal wheels that roll in contact with the base are rotatably installed on the support plate.

[0007] As a further aspect of the present invention: the support plate is U-shaped and a first adjusting screw is threadedly connected to the support plate, the first adjusting screw is rotatably connected to the pressure plate and the pressure plate is in sliding contact with the support plate.

[0008] As a further embodiment of the present invention: a top plate is fixedly installed at the output end of the first electric telescopic rod, and a fixing plate is fixedly installed on the side plate. The fixing plate and the top plate are located on both sides of the horizontal plate, and the horizontal plate and the fixing plate are in sliding contact.

[0009] As a further aspect of the present invention: two sets of guide rods are fixedly installed on the side of the substrate, and the guide rods are slidably connected to the support plate.

[0010] As a further aspect of the present invention: the cross-section of the power shaft is non-circular, and multiple sets of spaced connecting holes are provided on the power shaft. Two sets of mounting sleeves are slidably installed on the power shaft, and a connecting plate is fixedly installed at one end of the mounting sleeve. The grinding disc is fixedly installed on the connecting plate by fixing screws.

[0011] As a further embodiment of the present invention: a first limiting rod passing through the connecting hole is slidably mounted on the mounting sleeve, a second limiting rod is slidably mounted on the first limiting rod, and the second limiting rod is threadedly connected to the connecting plate.

[0012] As a further embodiment of the present invention: a lifting frame is slidably mounted on the support plate, a connecting seat connected to the end of the power shaft is rotatably mounted on the lifting frame, and a second adjusting screw that drives the lifting frame to move is rotatably mounted on the support plate.

[0013] The present invention also provides a grinding method, which is applied to the casting grinding device described above for grinding the inner hole wall and chamfer of a casting, comprising the following steps: Step S1: Support the casting with two sets of support plates and position the positioning rod in the through hole to be ground on the casting. Press the casting firmly onto the support plates with a pressure plate. Step S2: After the casting is placed, the servo module drives the two sets of moving blocks to move away from each other. The moving blocks drive the positioning rod to move. The positioning rod contacts the inner wall of the through hole of the casting and pushes the casting to move. When both sets of positioning rods are in contact with the inner wall of the through hole of the casting, the positioning is completed. Step S3: After the casting is positioned, the position of the support plate is fixed by the first electric telescopic rod to fix the casting. After fixing, the moving block is reset. Step S4: Adjust the height difference between the two sets of grinding discs according to the depth of the through hole, and move the support plate by the third electric telescopic rod so that the grinding side of the grinding disc is flush with the inner wall of the through hole of the casting. Step S5: The second electric telescopic rod drives the lifting plate to descend, and at the same time the second motor drives the two sets of grinding discs to rotate through the power shaft. After the lower grinding disc descends to the height of the through hole in the casting, the first motor drives the base plate to rotate, and together with the second electric telescopic rod, drives the grinding disc to feed downward. The lower grinding disc can then fully grind the inner wall of the through hole. Step S6: After the inside of the through hole of the casting is ground, the lifting plate continues to descend. At this time, the grinding disc above contacts the upper side of the through hole for chamfering grinding. After all grinding is completed, the lifting plate is reset, and the grinding operation can be continued after replacing the new casting.

[0014] The beneficial effects of this invention are: (1) In this invention, the casting is supported by the support plate and the caster wheel, so that the casting can be placed quickly and the positioning movement is smoother and more fluid. The casting is positioned by pushing the positioning rod to move, which ensures that the casting can move stably with the positioning rod, improves the flexibility of casting positioning, increases the speed of casting positioning and reduces the difficulty of positioning, and improves the grinding efficiency of casting.

[0015] (2) In this invention, when the grinding disc needs to be replaced after long-term use or when the grinding disc needs to be replaced for different types of chamfering, the second limiting rod is released from the first limiting rod, and then the first limiting rod is pulled out. After that, the mounting sleeve can be removed from the power shaft. After removing the mounting sleeve, the grinding disc can be replaced, realizing the quick installation and disassembly of the grinding disc. At the same time, the distance between the two sets of grinding discs can be quickly adjusted according to the depth of the through hole, which improves the convenience and flexibility of the equipment.

[0016] (3) In this invention, during the grinding process, the lower end of the power shaft extends into the connecting seat, and the connecting seat and the lifting frame support and stabilize the suspended end of the power shaft, ensuring that the power shaft rotates stably during grinding, improving the stability of grinding, and reducing the probability of damage to the power shaft. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the base structure in this invention.

[0020] Figure 3 This is a schematic diagram of the lifting plate in this invention.

[0021] Figure 4 This is a schematic diagram of the substrate structure in this invention.

[0022] Figure 5 This is a schematic diagram of the power shaft in this invention.

[0023] In the diagram: 1. Base; 2. Side plate; 3. Limiting groove; 4. Horizontal plate; 5. Support plate; 6. First adjusting screw; 7. Pressure plate; 8. Caster wheel; 9. Fixing plate; 10. First electric telescopic rod; 11. Top plate; 12. Moving block; 13. Servo module; 14. Positioning rod; 15. Second electric telescopic rod; 16. Lifting plate; 17. First motor; 18. Base plate; 19. Third electric telescopic rod; 20. Guide rod; 21. Support plate; 22. Second motor; 23. Power shaft; 24. Connecting hole; 25. Mounting sleeve; 26. Connecting plate; 27. Grinding disc; 28. First limiting rod; 29. ​​Second limiting rod; 30. Connecting seat; 31. Lifting frame; 32. Second adjusting screw. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-5 As shown, this invention is a casting grinding device for grinding the inner wall and chamfer of castings. It includes a base 1, on which two sets of symmetrically distributed side plates 2 are fixedly mounted. A support plate 5 is provided on each side plate 2. A limiting groove 3 is formed on each side plate 2, and a horizontal plate 4 is slidably installed within the limiting groove 3. One end of the horizontal plate 4 is fixedly connected to the support plate 5. Multiple sets of casters 8 are rotatably mounted on the support plate 5, which roll in contact with the base 1. A pressure plate 7 is provided on the support plate 5. The support plate 5 is U-shaped, and a first adjusting screw 6 is threadedly connected to it. The base 1 is rotatably connected to the pressure plate 7 and slides in contact with the support plate 5. The base 1 is provided with a first electric telescopic rod 10 for fixing the position of the support plate 5. The output end of the first electric telescopic rod 10 is fixedly installed with a top plate 11. The side plate 2 is fixedly installed with a fixing plate 9. The fixing plate 9 and the top plate 11 are located on both sides of the horizontal plate 4. The horizontal plate 4 and the fixing plate 9 slide in contact. Two sets of moving blocks 12 are slidably installed on the base 1. The base 1 is provided with a servo module 13 that drives the two sets of moving blocks 12 to move synchronously in opposite directions. The moving blocks 12 are threadedly connected with positioning rods 14. A second electric telescopic rod 15 is fixedly installed on the side plate 2, and a lifting plate 16 is fixedly installed on the output ends of the two sets of second electric telescopic rods 15. A first motor 17 is fixedly installed on the lifting plate 16. The output shaft axis of the first motor 17 is located in the symmetrical plane of the moving block 12. A base plate 18 is fixedly installed on the output shaft of the first motor 17. A third electric telescopic rod 19 is fixedly installed on the base plate 18. A support plate 21 is fixedly installed on the output end of the third electric telescopic rod 19. Two sets of guide rods 20 are fixedly installed on the side of the base plate 18. The guide rods 20 are slidably connected to the support plate 21. A power shaft 23 driven by a second motor 22 is rotatably installed on the support plate 21. Two sets of grinding discs 27 are provided on the power shaft 23.

[0026] In practical application, in the initial state, the support plate 5 is in a freely movable state and the two sets of moving blocks 12 are located in the middle of the base 1. The casting is supported by the two sets of support plates 5, and the positioning rod 14 is located in the through hole to be ground on the casting. The support plate 5 is in contact with the side of the casting. The first adjusting screw 6 drives the pressure plate 7 to move downward to press the casting onto the support plate 5. After fixing, the servo module 13 drives the two sets of moving blocks 12 to move away from each other. The moving blocks 12 drive the positioning rod 14 to move until the positioning rod 14 contacts the inner wall of the through hole of the casting. At this time, the positioning rod 14 will push the casting to move. Finally, both sets of positioning rods 14 are in contact with the inner wall of the through hole of the casting. At this time, the axis of the through hole of the casting is aligned with the first adjusting screw 6. The output shafts of machine 17 coincide to achieve the positioning of the casting. The casting is supported by support plate 5 and caster wheel 8, which makes the casting quick to place and smoother during positioning and movement. The casting is positioned by moving the positioning rod 14, which ensures that the casting can move stably with the positioning rod 14, improves the flexibility of casting positioning, increases the speed of casting positioning and reduces the difficulty of positioning. After positioning, the first electric telescopic rod 10 drives the top plate 11 to move upward. The top plate 11 cooperates with the fixed plate 9 to clamp and fix the horizontal plate 4, thereby fixing the casting. After fixing, the moving block 12 is reset. The positioning rod 14 can be disassembled and replaced according to the height of the through hole of the casting. Adjust the height difference between the two grinding discs 27 according to the depth of the through hole. Move the support plate 21 through the third electric telescopic rod 19 so that the grinding side of the grinding disc 27 is flush with the inner wall of the through hole of the casting. Then, the second electric telescopic rod 15 drives the lifting plate 16 to descend, and the second motor 22 drives the two grinding discs 27 to rotate through the power shaft 23. After the lower grinding disc 27 descends to the height of the through hole of the casting, the first motor 17 drives the base plate 18 to rotate, which in turn causes the grinding disc 27 to revolve. With the second electric telescopic rod 15 driving the grinding disc 27 to feed downward, the lower grinding disc 27 can fully grind the inner wall of the through hole. After the grinding of the inside of the through hole of the casting is completed, the lifting plate 16 continues to descend. At this time, the upper grinding disc 27 contacts the upper side of the through hole for chamfering grinding. After all grinding is completed, the lifting plate 16 is reset, and the grinding operation can be continued after replacing the new casting.

[0027] Please see Figures 3-5 As shown, the present invention is a casting grinding device for grinding the inner wall and chamfer of the casting. The cross-section of the power shaft 23 is non-circular. Multiple sets of spaced connecting holes 24 are opened on the power shaft 23. Two sets of mounting sleeves 25 are slidably installed on the power shaft 23. A connecting plate 26 is fixedly installed at one end of the mounting sleeve 25. The grinding disc 27 is fixedly installed on the connecting plate 26 by fixing screws.

[0028] Specifically, a first limiting rod 28 passing through the connecting hole 24 is slidably mounted on the mounting sleeve 25, and a second limiting rod 29 is slidably mounted on the first limiting rod 28. The second limiting rod 29 is threadedly connected to the connecting plate 26.

[0029] In practical application, two different grinding discs 27 are installed onto the connecting plates 26 of the two sets of mounting sleeves 25 using fixing screws. Then, the mounting sleeves 25 are slidably installed onto the drive shaft 23. After determining the position of the lowermost mounting sleeve 25, the first limiting rod 28 is passed through the mounting sleeve 25 and the connecting hole 24 to fix the mounting sleeve 25. Then, the second limiting rod 29 is passed through the first limiting rod 28 and threadedly connected to the connecting plate 26, ensuring that the first limiting rod 28 will not detach from the connecting hole 24. The mounting sleeve 25 is always stably installed on the power shaft 23. Then, the position of the upper mounting sleeve 25 is adjusted according to the depth of the through hole so that the distance between the two sets of grinding discs 27 is greater than the depth of the through hole. Thus, when the lower grinding disc 27 grinds the inner wall, the upper grinding disc 27 will not come into contact with the casting. After the lower grinding disc 27 is removed from the casting, the upper grinding disc 27 chamfers the through hole. The process is always maintained so that a single grinding disc 27 grinds the through hole, thus avoiding the casting from heating up at multiple locations at the same time, which would lead to a decrease in the quality of the casting. When the grinding disc 27 needs to be replaced after prolonged use or when a different type of grinding disc 27 is needed for chamfering, release the second limiting rod 29 from the first limiting rod 28, then pull out the first limiting rod 28, and then remove the mounting sleeve 25 from the power shaft 23. After removing the mounting sleeve 25, the grinding disc 27 can be replaced, realizing the quick installation and removal of the grinding disc 27. At the same time, the distance between the two sets of grinding discs 27 can be quickly adjusted according to the depth of the through hole, improving the convenience and flexibility of the equipment.

[0030] Please see Figure 3 , Figure 4 As shown, the present invention is a casting grinding device for grinding the inner hole wall and chamfer of castings. A lifting frame 31 is slidably installed on the support plate 21. A connecting seat 30 connected to the end of the power shaft 23 is rotatably installed on the lifting frame 31. A second adjusting screw 32 that drives the lifting frame 31 to move is rotatably installed on the support plate 21.

[0031] In practical application, during the grinding process, the lower end of the power shaft 23 extends into the connecting seat 30. The connecting seat 30 and the lifting frame 31 support and stabilize the suspended end of the power shaft 23, ensuring stable rotation of the power shaft 23 during grinding, improving grinding stability, and reducing the probability of damage to the power shaft 23. When it is necessary to replace the grinding disc 27, the second adjusting screw 32 drives the lifting frame 31 to move downward, causing the connecting seat 30 to move away from the lower end of the power shaft 23, at which point the grinding disc 27 can be replaced.

[0032] The present invention also provides a grinding method, which is applied to the casting grinding device described above for grinding the inner hole wall and chamfer of a casting, comprising the following steps: Step S1: Support the casting with two sets of support plates 5, and position the positioning rod 14 in the through hole to be ground on the casting. Press the casting onto the support plate 5 with the pressure plate 7. Step S2: After the casting is placed, the servo module 13 drives the two sets of moving blocks 12 to move away from each other. The moving blocks 12 drive the positioning rod 14 to move. The positioning rod 14 contacts the inner wall of the through hole of the casting and pushes the casting to move. When both sets of positioning rods 14 are in contact with the inner wall of the through hole of the casting, the positioning of the casting is completed. Step S3: After the casting is positioned, the position of the support plate 5 is fixed by the first electric telescopic rod 10 to fix the casting. After the fixing is completed, the moving block 12 is reset. Step S4: Adjust the height difference between the two sets of grinding discs 27 according to the depth of the through hole, and move the support plate 21 by the third electric telescopic rod 19 so that the grinding side of the grinding disc 27 is flush with the inner wall of the through hole of the casting. Step S5: The second electric telescopic rod 15 drives the lifting plate 16 to descend, and the second motor 22 drives the two sets of grinding discs 27 to rotate through the power shaft 23. After the lower grinding disc 27 descends to the height of the through hole in the casting, the first motor 17 drives the base plate 18 to rotate, and the second electric telescopic rod 15 drives the grinding disc 27 to feed downward. The lower grinding disc 27 can then perform comprehensive grinding on the inner wall of the through hole. Step S6: After the internal grinding of the through hole of the casting is completed, the lifting plate 16 continues to descend. At this time, the grinding disc 27 above contacts the upper side of the through hole for chamfering grinding. After all grinding is completed, the lifting plate 16 is reset, and the grinding operation can be continued after replacing the new casting.

Claims

1. A casting grinding device for grinding the inner wall and chamfer of a casting, comprising a base (1), characterized in that, Two sets of symmetrically distributed side plates (2) are fixedly installed on the base (1). A support plate (5) is provided on the side plate (2). A pressure plate (7) is provided on the support plate (5). A first electric telescopic rod (10) for fixing the position of the support plate (5) is provided on the base (1). Two sets of moving blocks (12) are slidably installed on the base (1). A servo module (13) for driving the two sets of moving blocks (12) to move synchronously in opposite directions is provided on the base (1). A positioning rod (14) is threadedly connected to the moving block (12). The side plate (2) is fixedly installed with a second electric telescopic rod (15), and the output ends of the two sets of second electric telescopic rods (15) are fixedly installed with a lifting plate (16). The lifting plate (16) is fixedly installed with a first motor (17). The output shaft axis of the first motor (17) is located in the symmetrical plane of the moving block (12). The output shaft of the first motor (17) is fixedly installed with a base plate (18). The base plate (18) is fixedly installed with a third electric telescopic rod (19). The output end of the third electric telescopic rod (19) is fixedly installed with a support plate (21). The support plate (21) is rotatably installed with a power shaft (23) driven by a second motor (22). The power shaft (23) is provided with two sets of grinding discs (27).

2. The casting grinding device for grinding the inner wall and chamfer of a casting according to claim 1, characterized in that, The side plate (2) has a limiting groove (3), and a horizontal plate (4) is slidably installed in the limiting groove (3). One end of the horizontal plate (4) is fixedly connected to the support plate (5). Multiple sets of universal wheels (8) that roll in contact with the base (1) are rotatably installed on the support plate (5).

3. A casting grinding device for grinding the inner wall and chamfer of a casting according to claim 2, characterized in that, The support plate (5) is U-shaped and a first adjusting screw (6) is threaded onto the support plate (5). The first adjusting screw (6) is rotatably connected to the pressure plate (7) and the pressure plate (7) is in sliding contact with the support plate (5).

4. A casting grinding device for grinding the inner wall and chamfer of a casting according to claim 3, characterized in that, The output end of the first electric telescopic rod (10) is fixedly installed with a top plate (11) and a fixing plate (9) is fixedly installed on the side plate (2). The fixing plate (9) and the top plate (11) are located on both sides of the horizontal plate (4), and the horizontal plate (4) and the fixing plate (9) are in sliding contact.

5. A casting grinding device for grinding the inner wall and chamfer of a casting according to claim 1, characterized in that, Two sets of guide rods (20) are fixedly installed on the side of the substrate (18), and the guide rods (20) are slidably connected to the support plate (21).

6. A casting grinding device for grinding the inner wall and chamfer of a casting according to claim 1, characterized in that, The cross section of the power shaft (23) is non-circular. Multiple sets of spaced connecting holes (24) are provided on the power shaft (23). Two sets of mounting sleeves (25) are slidably installed on the power shaft (23). A connecting plate (26) is fixedly installed at one end of the mounting sleeve (25). The grinding disc (27) is fixedly installed on the connecting plate (26) by fixing screws.

7. A casting grinding device for grinding the inner wall and chamfer of a casting according to claim 6, characterized in that, A first limiting rod (28) passing through the connecting hole (24) is slidably installed on the mounting sleeve (25), and a second limiting rod (29) is slidably installed on the first limiting rod (28). The second limiting rod (29) is threadedly connected to the connecting plate (26).

8. A casting grinding device for grinding the inner wall and chamfer of a casting according to claim 1, characterized in that, A lifting frame (31) is slidably mounted on the support plate (21), a connecting seat (30) connected to the end of the power shaft (23) is rotatably mounted on the lifting frame (31), and a second adjusting screw (32) that drives the lifting frame (31) to move is rotatably mounted on the support plate (21).

9. A polishing method, characterized in that, A casting grinding apparatus for grinding the inner wall and chamfer of a casting as described in any one of claims 1-8, comprising the following steps: Step S1: Support the casting with two sets of support plates 5, and position the positioning rod 14 in the through hole to be ground on the casting. Press the casting onto the support plate 5 with the pressure plate 7. Step S2: After the casting is placed, the servo module 13 drives the two sets of moving blocks 12 to move away from each other. The moving blocks 12 drive the positioning rod 14 to move. The positioning rod 14 contacts the inner wall of the through hole of the casting and pushes the casting to move. When both sets of positioning rods 14 are in contact with the inner wall of the through hole of the casting, the positioning of the casting is completed. Step S3: After the casting is positioned, the position of the support plate 5 is fixed by the first electric telescopic rod 10 to fix the casting. After the fixing is completed, the moving block 12 is reset. Step S4: Adjust the height difference between the two sets of grinding discs 27 according to the depth of the through hole, and move the support plate 21 by the third electric telescopic rod 19 so that the grinding side of the grinding disc 27 is flush with the inner wall of the through hole of the casting. Step S5: The second electric telescopic rod 15 drives the lifting plate 16 to descend, and the second motor 22 drives the two sets of grinding discs 27 to rotate through the power shaft 23. After the lower grinding disc 27 descends to the height of the through hole in the casting, the first motor 17 drives the base plate 18 to rotate, and the second electric telescopic rod 15 drives the grinding disc 27 to feed downward. The lower grinding disc 27 can then perform comprehensive grinding on the inner wall of the through hole. Step S6: After the internal grinding of the through hole of the casting is completed, the lifting plate 16 continues to descend. At this time, the grinding disc 27 above contacts the upper side of the through hole for chamfering grinding. After all grinding is completed, the lifting plate 16 is reset, and the grinding operation can be continued after replacing the new casting.

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