A polishing device for a slotted bushing

Abstract

This utility model provides a grinding device for grooved bushings, relating to the field of grooved bushing grinding technology. It includes an operating table with a grinding mechanism on its surface. The grinding mechanism comprises two fixed seats movably mounted at both ends of the operating table. By setting up a grinding assembly, a rectangular grinding strip passes through the inside of the bushing, and a cylindrical grinding rod adheres to the bottom edge of the outer wall of the bushing. Two sliding blocks in the grinding assembly reciprocate horizontally in the same direction and at the same speed, enabling the rectangular grinding strip and the cylindrical grinding rod to grind the inner and outer walls of the bushing respectively. This is accompanied by the bushing's rotation, ensuring uniform grinding of the bushing's interior without any "missed spots" or "off-center grinding." The rectangular grinding strip's rotation adjusts its orientation and allows for horizontal or vertical displacement, facilitating the grinding of the keyway on the inner wall of the bushing using its surface grinding teeth.

Description

Technical Field

[0001] This utility model relates to the field of grooved bushing grinding technology, and in particular to a grinding device for grooved bushings. Background Technology

[0002] Grooved bushings are widely used due to their guiding, limiting, assembly, or protective functions. Grinding is a crucial step to ensure their accuracy, lifespan, and safe assembly. Therefore, a grinding device for connecting bushings, disclosed in CN222553012U, is proposed. After the bushing is fixed, a second motor is started to drive the lead screw to rotate, which in turn moves the moving block within the moving groove, thereby moving the bushing on the fixed frame towards the grinding machine.

[0003] Then, by starting the second cylinder, the fixed frame is raised and lowered, so that the outer wall of the bushing contacts the grinding roller of the grinding machine, or so that the grinding roller enters the inner wall of the bushing, so that the inner or outer wall can be ground by the grinding machine to complete the grinding operation.

[0004] However, for long bushings, the grinding roller cannot penetrate deep into the interior for uniform grinding throughout, which may result in "not hitting" or "grinding off-center". Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a grinding device for grooved bushings.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grinding device for grooved bushings, comprising an operating table, wherein the operating table surface is provided with;

[0007] A grinding mechanism includes two fixed seats that are movably installed at both ends of the worktable surface. Each fixed seat has a slide seat that is movably installed and slidably embedded in the worktable surface, facing the center of the worktable surface. A vertical frame is fixedly installed on the upper surface of the slide seat, and a vertically lifting slider is inserted into the vertical frame. A horizontally arranged rectangular grinding strip is movably installed between the two sliders, and a cylindrical grinding rod is arranged between the two slide seats. The grinding mechanism is used to grind the inner and outer walls of the bushing.

[0008] Preferably, the grinding mechanism further includes a rod, which is horizontally arranged inside the worktable and passes through the side of the fixed seat and the slide. The surface of the rod has several positioning holes, and the top edge of the fixed seat is connected to the positioning holes by a pin.

[0009] Preferably, an electric cylinder is provided between the fixed seat and the adjacent slide, which is parallel to the insertion rod. The top edge of the slide is inserted into the end of the cylindrical grinding rod and connected by a pin.

[0010] Preferably, the top edge of the slider is threadedly connected to a threaded rod that is vertically arranged and rotatably installed in the vertical frame, and a horizontally arranged linear module is inserted into the side of the slider along the longitudinal direction. The outer vertical edge of the sliding seat of the linear module is rotatably connected to a spur gear, and the two ends of the rectangular grinding strip are inserted into the opposite end faces of the two spur gears and connected by pins.

[0011] Preferably, an electric telescopic rod for driving the linear module to rise and fall is fixedly installed on the top edge of the slider, and a rack that meshes with a spur gear is also inserted into the surface of the sliding seat of the linear module. An electric push rod is provided between the rack and the outer vertical edge of the sliding seat of the linear module.

[0012] Preferably, the operating table surface is also provided with a clamping mechanism between the two slides;

[0013] The clamping mechanism includes two parallel bidirectional lead screws that are rotatably mounted on the surface of the worktable. Each of the bidirectional lead screws has a clamping plate threaded to both ends and inserted into the worktable surface. The clamping mechanism is used to clamp the two ends of the bushing.

[0014] Preferably, the two clamping plates near either slide are rotatably connected to conical wheels for rolling connection with the outer edge of the bushing end.

[0015] Preferably, the two clamping plates on the same bidirectional lead screw are arranged in an arc shape near the center of the operating table and are rotatably connected to the edge of the bushing end.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, by setting up a grinding component, the rectangular grinding strip in the grinding component passes through the inside of the bushing and the cylindrical grinding rod is attached to the bottom edge of the outer wall of the bushing. By using the two sliding blocks in the grinding component to move horizontally and reciprocally in the same direction and at the same speed, the rectangular grinding strip and the cylindrical grinding rod can grind the inner wall and outer wall of the bushing respectively. With the bushing rotating, the inside of the bushing can be ground evenly without "not hitting" or "hitting off-center". The orientation of the rectangular grinding strip is adjusted by its rotation and it can move horizontally or vertically, which makes it easy to use the surface grinding teeth to grind the keyway of the inner wall of the bushing.

[0018] 2. In this utility model, by rotating two bidirectional lead screws at the same speed, two clamping plates on both sides of the operating table surface move relative to each other or towards each other, thereby clamping bushings of different lengths. When the arc-shaped notch on the surface of the clamping plate catches the edge of the bushing end face, the bushing can be rotated by contact between the conical wheel and the bushing end face. During the rotation, the bushing is polished by the rectangular polishing strip and the cylindrical polishing rod. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural schematic diagram of a grinding device for a grooved bushing proposed in this utility model;

[0020] Figure 2 is a schematic diagram of the operating table of a grinding device for grooved bushings proposed in this utility model;

[0021] Figure 3 shows a grinding device for grooved bushings proposed in this utility model. Figure 2 A schematic diagram of the cross-sectional structure;

[0022] Figure 4 is a schematic diagram of the slide block structure;

[0023] Figure 5 is a schematic diagram of the slider structure.

[0024] Legend: 1. Operating table; 2. Clamping plate; 3. Two-way lead screw; 4. Fixed base; 5. Slide block; 6. Rectangular grinding strip; 7. Conical wheel; 8. Cylindrical grinding rod; 9. Insert rod; 10. Positioning hole; 11. Vertical frame; 12. Electric push rod; 13. Slider; 14. Threaded rod; 15. Electric cylinder; 16. Electric telescopic rod; 17. Linear module; 18. Spur gear; 19. Rack. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] like Figure 1 - Figure 5 As shown, a grinding device for grooved bushings includes an operating table 1.

[0028] The workbench 1 is equipped with a grinding mechanism. The grinding mechanism includes two fixed seats 4 that are movably installed at both ends of the workbench 1. The fixed seats 4 are movably installed with slides 5 that are embedded and slidably installed in the workbench 1 at the middle position of the workbench 1. An electric cylinder 15 is provided between the fixed seat 4 and the adjacent slide 5 and is parallel to the insertion rod 9. By limiting the position of the fixed seat 4, the two electric cylinders 15 can work at the same time, with one electric cylinder 15 retracting and the other electric cylinder 15 extending, so that the two slides 5 can move horizontally back and forth on the workbench 1.

[0029] A vertical frame 11 is fixedly installed on the upper surface of the slide block 5. A vertically lifting slider 13 is inserted into the vertical frame 11. A threaded rod 14, which is vertically set and rotatably installed in the vertical frame 11, is threadedly connected to the top edge of the slider 13. In actual use, the threaded rod 14 is driven to rotate by a motor installed on the top edge of the vertical frame 11, thereby realizing the lifting and lowering of the threaded slider 13 within the vertical frame 11. A horizontally set rectangular grinding strip 6 is movably installed between the two sliders 13. The rectangular grinding strip 6 passes through the inner wall of the bushing and its height is adjusted as the sliders 13 rise and fall, ensuring that the rectangular grinding strip 6 can... In order to fit the inner wall of the bushing, one side of the rectangular grinding strip 6 in this design is designed as an arc surface to facilitate fitting the arc surface of the inner wall of the bushing. A cylindrical grinding rod 8 is set between the two slides 5. The cylindrical grinding rod 8 is used to fit the bottom edge of the outer wall of the bushing. Therefore, in actual use, when the two slides 5 move back and forth, the corresponding vertical frame 11 will move back and forth in the same direction. Therefore, the rectangular grinding strip 6 and the cylindrical grinding rod 8 will move back and forth horizontally relative to the bushing, and with the bushing rotating, the full coverage grinding of the inner and outer walls of the bushing is achieved. Therefore, the grinding mechanism is used to grind the inner and outer walls of the bushing.

[0030] The grinding mechanism also includes a rod 9, which is horizontally set inside the workbench 1 and passes through the side of the fixed seat 4 and the slide 5. The surface of the rod 9 has several positioning holes 10. The top edge of the fixed seat 4 is connected to the positioning holes 10 by a pin. The top edge of the slide 5 is inserted into the end of the cylindrical grinding rod 8 and connected by a pin. By inserting the pin into the top edge of the fixed seat 4 and into the positioning holes 10 at different positions on the rod 9, it is easy to adjust the distance between the two fixed seats 4 according to the length of the rectangular grinding strip 6 and the cylindrical grinding rod 8 used. This can achieve the initial distance between the two vertical frames 11, which is convenient for installing the rectangular grinding strip 6 and the cylindrical grinding rod 8.

[0031] A horizontally arranged linear module 17 is inserted into the longitudinal side of the slider 13. A spur gear 18 is rotatably connected to the outer edge of the sliding seat of the linear module 17. The two ends of a rectangular grinding strip 6 are inserted into the opposite end faces of the two spur gears 18 and connected by pins. An electric telescopic rod 16 for driving the linear module 17 to rise and fall is fixedly installed on the top edge of the slider 13. A rack 19, meshing with the spur gear 18, is also inserted into the surface of the sliding seat of the linear module 17. An electric push rod 12 is provided between the rack 19 and the outer edge of the sliding seat of the linear module 17. In actual use, the rack 19 moves by extending and retracting the electric push rod 12, thereby achieving… The spur gear 18, which is currently engaged, drives the rectangular grinding strip 6 to rotate. That is, when grinding the keyway part inside the bushing, the rotation of the rectangular grinding strip 6 makes its surface face the keyway part inside the bushing. The electric telescopic rod 16 drives the linear module 17 to drive the rectangular grinding strip 6 to penetrate the keyway inside the bushing vertically. The linear module 17 drives the spur gear 18 to move the rectangular grinding strip 6 horizontally. Combined with the longitudinal movement of the rectangular grinding strip 6, the rectangular grinding strip 6 can be made to fit against the side wall and bottom of the keyway inside the bushing. This is convenient when the bushing rotates to the keyway part inside the surface and gets close to the rectangular grinding strip 6.

[0032] A clamping mechanism is also provided between the two slides 5 on the operating table 1. The clamping mechanism includes two parallel, rotatably mounted bidirectional lead screws 3 on the surface of the operating table 1. Both ends of each bidirectional lead screw 3 are threadedly connected to clamping plates 2 that are inserted into the surface of the operating table 1. Similarly, both bidirectional lead screws 3 can be driven by motors mounted on the surface of the operating table 1. By using known control technology to achieve synchronous starting and operation of the two motors at the same speed, the two bidirectional lead screws 3 can be rotated at the same speed. Therefore, if... Figure 2 As shown, the two clamping plates 2 on both sides of the operating table 1 can move relative to each other or towards each other to clamp bushings of different lengths. The clamping mechanism is used to clamp the two ends of the bushing. The two clamping plates 2 near any slide 5 are embedded with conical wheels 7 for rolling connection with the outer edge of the bushing end. The two clamping plates 2 on the same bidirectional screw 3 are arranged in an arc shape near the middle of the operating table 1 and are rotatably connected to the edge of the bushing end. In this scheme, the conical wheels 7 can also be driven to rotate by a motor. Therefore, when the arc notch on the surface of the clamping plate 2 is stuck on the edge of the bushing end face, the bushing can be rotated by contact between the conical wheels 7 and the bushing end face. During the rotation, the bushing is polished by the rectangular polishing strip 6 and the cylindrical polishing rod 8.

[0033] The working principle is as follows: The bushing is placed on the table surface of the operating table 1 and clamped and fixed by the clamping mechanism. Then, a rectangular grinding strip 6 of the corresponding length is passed through the bushing, and a cylindrical grinding rod 8 is placed below the bushing. The position of the fixing seat 4 is adjusted according to the length of the rectangular grinding strip 6 and the cylindrical grinding rod 8, and then the position of the slide 5 and the vertical frame 11 is adjusted. The end of the cylindrical grinding rod 8 is fixed to the top edge of the slide 5 by a pin, and the end of the rectangular grinding strip 6 is fixed to the end of the spur gear 18 by the pin again. The position of the rectangular grinding strip 6 is adjusted by the slider 13 within the vertical frame 11, so that its arc surface fits against the inner wall of the bushing. One electric cylinder 15 retracts and the other electric cylinder 15 extends, so that the two slides 5 can move horizontally back and forth on the table surface of the operating table 1. When the two slides 5 move back and forth, the corresponding vertical frame 11 will move back and forth in the same direction. Therefore, the rectangular grinding strip 6 and the cylindrical grinding rod 8 will move horizontally back and forth relative to the bushing, and with the rotation of the bushing, the inner and outer walls of the bushing are fully covered by grinding.

[0034] The wiring diagrams for the electric push rod 12, electric cylinder 15, electric telescopic rod 16, linear module 17, and motor in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts for the electric push rod 12, electric cylinder 15, electric telescopic rod 16, linear module 17, and motor will not be explained in detail.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A grinding device for grooved bushings, comprising an operating table (1), characterized in that: The workbench (1) is equipped with the following on its surface: Grinding mechanism; the grinding mechanism includes two fixed seats (4) that are movably installed at both ends of the table surface of the operating table (1). The fixed seats (4) are movably installed with slides (5) that are embedded and slidably installed in the middle of the operating table (1). A vertical frame (11) is fixedly installed on the upper surface of the slides (5). A vertically lifting slider (13) is inserted into the vertical frame (11). A horizontally arranged rectangular grinding strip (6) is movably installed between the two sliders (13). A cylindrical grinding rod (8) is arranged between the two slides (5). The grinding mechanism is used to grind the inner and outer walls of the bushing.

2. The apparatus of claim 1, wherein: The grinding mechanism also includes a rod (9), which is horizontally arranged inside the table surface of the operating table (1) and passes through the side of the fixed seat (4) and the slide (5). The surface of the rod (9) is provided with several positioning holes (10), and the top edge of the fixed seat (4) is connected to the positioning holes (10) by a pin.

3. The apparatus of claim 2, wherein: An electric cylinder (15) is provided between the fixed seat (4) and the adjacent slide (5) and is parallel to the insertion rod (9). The top edge of the slide (5) is inserted into the end of the cylindrical grinding rod (8) and connected by a pin.

4. The apparatus of claim 1, wherein: The top edge of the slider (13) is threaded with a threaded rod (14) that is vertically set and rotatably installed in the vertical frame (11). A horizontally set linear module (17) is inserted into the side of the slider (13) along the longitudinal direction. A spur gear (18) is rotatably connected to the outer vertical edge of the sliding seat of the linear module (17). The two ends of the rectangular grinding strip (6) are inserted into the opposite end faces of the two spur gears (18) and connected by pins.

5. The apparatus of claim 4, wherein: An electric telescopic rod (16) for driving the linear module (17) to rise and fall is fixedly installed on the top edge of the slider (13). A rack (19) that meshes with a spur gear (18) is also inserted into the sliding seat surface of the linear module (17). An electric push rod (12) is provided between the rack (19) and the outer vertical edge of the sliding seat of the linear module (17).

6. The apparatus of claim 1, wherein: The operating table (1) is located between two slides (5) and is also equipped with a clamping mechanism; The clamping mechanism includes two parallel bidirectional lead screws (3) that are rotatably mounted on the surface of the operating table (1). Both ends of each bidirectional lead screw (3) are threadedly connected to clamping plates (2) that are inserted into the table surface of the operating table (1). The clamping mechanism is used to clamp the two ends of the bushing.

7. The apparatus of claim 6, wherein: The two clamps (2) near either slide (5) are rotatably connected to conical wheels (7) for rolling connection with the outer edge of the bushing end.

8. The apparatus of claim 7, wherein: The two clamps (2) on the same bidirectional screw (3) are arranged in an arc shape near the middle of the operating table (1) and are rotatably connected to the edge of the bushing end.

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