A special fixture for cutting the inner hole of a grinding wheel

Abstract

The utility model belongs to cutting grinding wheel inner hole processing clamp technical field especially a kind of cutting grinding wheel inner hole processing special fixture, it includes processing platform, the special fixture further includes: first electric push rod, first electric push rod fixed mounting is at the bottom of processing platform, and the output shaft of first electric push rod penetrates processing platform and is connected with processing platform slidingly;Spindle, the bottom end of the spindle is fixedly installed on the output shaft of first electric push rod;Fixed rod is provided as multiple, the bottom end of multiple fixed rod is fixedly installed on the top of processing platform, and the top end of multiple fixed rod is fixedly installed with same lower baffle, and lower baffle can be detached from the sleeve on the spindle, the utility model discloses the centering and clamping fixed of multiple cutting grinding wheel main body are realized to simple structure, centering and clamping process operation is convenient, save time and labour, greatly improve the clamping efficiency of cutting grinding wheel main body, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of fixtures for machining the inner hole of a cutting grinding wheel, and in particular to a special fixture for machining the inner hole of a cutting grinding wheel. Background Technology

[0002] Cutting grinding wheels have a dense structure, thin thickness, and high precision, offering advantages such as good self-sharpening properties, sharp cutting edge, narrow kerf, and good surface finish. They are mainly used for cutting and grooving various electronic components in the electronics and information industry and precision parts in the machinery industry. Since the grinding wheel blank cannot achieve the required dimensional accuracy during initial forming, subsequent machining is necessary to ensure this. Machining the inner hole of the cutting grinding wheel blank generally includes internal grinding, electrical discharge machining (EDM), and traditional manual grinding methods.

[0003] In the prior art, Chinese patent application number 201521092326.8 discloses a special fixture for machining the inner hole of a grinding wheel, including an upper cover plate and a lower cover plate. The upper cover plate is formed by connecting a clamping part and a mounting part. The clamping part is a circular plate with a first through hole at its center. The mounting parts are evenly arranged along the outer circumference of the clamping part, and each mounting part has several second through holes. The shape and size of the lower cover plate are the same as those of the upper cover plate, and the upper and lower cover plates are positioned vertically corresponding. Each mounting part is equipped with a bolt, and the distance between the upper and lower cover plates is adjusted by tightening the bolts. A mandrel is inserted into the first through hole. This utility model has a compact structure, saves materials, and can effectively avoid deformation and burrs on the grinding wheel blank to be machined, resulting in higher machining accuracy of the inner hole of the grinding wheel blank.

[0004] However, the above-mentioned technical solution involves centering multiple cutting grinding wheels using a mandrel and then clamping them using an upper and lower cover plate. The upper and lower cover plates are locked together with multiple bolts, making each clamping operation cumbersome and requiring auxiliary tools. This has significant limitations and greatly reduces the clamping efficiency and processing efficiency of multiple cutting grinding wheels, resulting in poor practicality. Therefore, this application proposes a special fixture for machining the inner hole of cutting grinding wheels to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of existing technologies that use a mandrel to center multiple cutting grinding wheels and then use an upper and lower cover plate to clamp the multiple cutting grinding wheels. However, the upper and lower cover plates are locked and fixed with multiple bolts. This clamping operation is cumbersome and requires auxiliary tools, which has great limitations and greatly reduces the clamping efficiency and processing efficiency of multiple cutting grinding wheels, resulting in poor practicality. Therefore, this utility model proposes a special fixture for machining the inner hole of cutting grinding wheels.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A special fixture for machining the inner hole of a cutting grinding wheel includes a machining table, and the special fixture also includes:

[0008] The first electric push rod is fixedly installed at the bottom of the processing table, and the output shaft of the first electric push rod passes through the processing table and is slidably connected to the processing table.

[0009] A mandrel, the bottom end of which is fixedly mounted on the output shaft of the first electric push rod;

[0010] The fixing rods are configured in multiple ways. The bottom ends of the multiple fixing rods are fixedly installed on the top of the processing table. The top ends of the multiple fixing rods are fixedly installed with the same lower cover plate. The lower cover plate can be detached and sleeved on the mandrel. Multiple cutting grinding wheel bodies are stacked on the top of the lower cover plate.

[0011] A bracket, the bottom end of which is fixedly installed on the top of the processing table;

[0012] A clamping assembly, comprising: two second electric push rods, two slide rods, and an upper cover plate. The two second electric push rods are fixedly mounted on a bracket. The top of the slide rods is fixedly mounted on the output shaft of the corresponding second electric push rod. The bottom of the two slide rods is fixedly mounted on the top of the upper cover plate. The upper cover plate cooperates with the lower cover plate.

[0013] A processing assembly, mounted on a support, is used to grind the inner holes of multiple cutting wheel bodies.

[0014] As a preferred embodiment of this utility model, a limiting ring is fixedly sleeved at the bottom end of the mandrel, and the top of the limiting ring contacts the bottom of the lower cover plate.

[0015] As a preferred embodiment of this utility model, the bracket has grooves on both the left and right inner walls, and the ends of the two sliding rods that are far apart from each other are slidably connected in the two grooves respectively.

[0016] As a preferred embodiment of this utility model, two springs are fixedly installed on the top inner wall of the bracket, and the bottom ends of the springs are fixedly installed on the top of the corresponding slide rods.

[0017] As a preferred embodiment of this utility model, the processing assembly includes a third electric push rod, a motor, and a honing head. The third electric push rod is fixedly mounted on the top of the bracket, the motor is fixedly mounted on the output shaft of the third electric push rod, and the top of the honing head is fixedly mounted on the output shaft of the motor.

[0018] As a preferred embodiment of this utility model, stabilizer bars are fixedly installed on both the left and right sides of the motor, and the top ends of the two stabilizer bars pass through the bracket and are slidably connected to the bracket.

[0019] As a preferred embodiment of this utility model, both the upper cover plate and the lower cover plate are provided with round holes, which respectively cooperate with the mandrel and the honing head.

[0020] Beneficial effects:

[0021] 1. In order to solve the problem of inconvenience in quickly clamping the cutting wheel body, the first electric push rod can be activated to drive the mandrel to move upward and pass through the lower cover plate. Then, multiple cutting wheel bodies are sequentially placed on the mandrel. At this time, the outer side of the mandrel contacts the inner wall of multiple cutting wheel bodies, thereby enabling the centering operation of multiple cutting wheel bodies.

[0022] 2. By activating the two second electric push rods, the two slide rods and the upper cover plate can be moved down, so that the upper cover plate can be fitted onto the mandrel and press and fix the multiple cutting grinding wheel bodies. After the multiple cutting grinding wheel bodies are pressed and fixed, activating the first electric push rod can move the mandrel down to the bottom of the lower cover plate, thereby exposing the inner holes of the multiple cutting grinding wheel bodies for subsequent grinding processing.

[0023] This utility model achieves centering and clamping of multiple cutting grinding wheel bodies through a simple structure. The centering and clamping process is convenient, time-saving, and labor-saving, greatly improving the clamping efficiency of the cutting grinding wheel bodies and making it highly practical. Attached Figure Description

[0024] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0025] Figure 2 This is a three-dimensional structural view of the processing table, the first electric push rod, the spindle, the limiting ring, the lower cover plate, and the fixing rod of this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram of the second electric push rod, slide rod, spring, and upper cover plate of this utility model.

[0027] Figure 4 This is a three-dimensional structural diagram of the bracket, second electric push rod, slide rod, slide groove, spring, upper cover plate, third electric push rod, motor, honing head and stabilizer bar of this utility model.

[0028] In the diagram: 1. Machining table; 2. First electric push rod; 3. Mandrel; 4. Limiting ring; 5. Lower cover plate; 6. Fixing rod; 7. Cutting wheel body; 8. Bracket; 9. Second electric push rod; 10. Slide rod; 11. Slide groove; 12. Spring; 13. Upper cover plate; 14. Third electric push rod; 15. Motor; 16. Honing head; 17. Stabilizing rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example

[0031] Reference Figures 1-4 A special fixture for machining the inner hole of a cutting grinding wheel includes a machining table 1, and the special fixture also includes:

[0032] The first electric push rod 2 is fixedly installed at the bottom of the processing table 1, and the output shaft of the first electric push rod 2 passes through the processing table 1 and is slidably connected to the processing table 1.

[0033] The bottom end of the spindle 3 is fixedly mounted on the output shaft of the first electric push rod 2;

[0034] The fixing rod 6 is configured in multiple ways. The bottom ends of the multiple fixing rods 6 are all fixedly installed on the top of the processing table 1. The top ends of the multiple fixing rods 6 are fixedly installed with the same lower cover plate 5. The lower cover plate 5 can be detached and sleeved on the mandrel 3. Multiple cutting grinding wheel bodies 7 are stacked on the top of the lower cover plate 5.

[0035] The bottom end of the bracket 8 is fixedly installed on the top of the processing table 1;

[0036] The clamping assembly includes: two second electric push rods 9, two slide rods 10 and an upper cover plate 13. The two second electric push rods 9 are fixedly mounted on the bracket 8. The top of the slide rod 10 is fixedly mounted on the output shaft of the corresponding second electric push rod 9. The bottom of the two slide rods 10 is fixedly mounted on the top of the upper cover plate 13. The upper cover plate 13 cooperates with the lower cover plate 5.

[0037] The processing component is mounted on the support 8 and is used to grind the inner holes of multiple cutting wheel bodies 7.

[0038] To solve the problem of inconvenience in quickly clamping the cutting grinding wheel body 7, such as Figure 1As shown, by activating the first electric push rod 2, the mandrel 3 can be moved upward and pass through the lower cover plate 5. Then, multiple cutting wheel bodies 7 are sequentially fitted onto the mandrel 3. At this time, the outer side of the mandrel 3 contacts the inner wall of the multiple cutting wheel bodies 7, thereby enabling the centering operation of the multiple cutting wheel bodies 7. Then, by activating the two second electric push rods 9, the two slide rods 10 and the upper cover plate 13 can be moved downward, so that the upper cover plate 13 is fitted onto the mandrel 3 and presses and fixes the multiple cutting wheel bodies 7. Here, after the multiple cutting wheel bodies 7 are pressed and fixed, activating the first electric push rod 2 can move the mandrel 3 downward to below the lower cover plate 5, thereby exposing the inner hole of the multiple cutting wheel bodies 7 for subsequent grinding processing.

[0039] In order to limit the upward movement of the mandrel 3, a limiting ring 4 is fixedly sleeved at the bottom end of the mandrel 3, and the top of the limiting ring 4 is in contact with the bottom of the lower cover plate 5.

[0040] In order to provide stable support for the movement of the slide rod 10 and the upper cover plate 13, the inner walls of the left and right sides of the bracket 8 are provided with grooves 11, and the ends of the two slide rods 10 that are far apart from each other are slidably connected in the two grooves 11 respectively.

[0041] To assist the slide bar 10 and the upper cover plate 13 in moving down and resetting, two springs 12 are fixedly installed on the top inner wall of the bracket 8, and the bottom end of the spring 12 is fixedly installed on the top of the corresponding slide bar 10.

[0042] In order to perform grinding on the inner hole of the cutting wheel body 7, the honing head 16 can be rotated and moved downward by activating the third electric push rod 14 and the motor 15. This allows the honing head 16 to be inserted into the inner hole of multiple cutting wheel bodies 7 for grinding. The processing assembly includes the third electric push rod 14, the motor 15 and the honing head 16. The third electric push rod 14 is fixedly installed on the top of the bracket 8, the motor 15 is fixedly installed on the output shaft of the third electric push rod 14, and the top of the honing head 16 is fixedly installed on the output shaft of the motor 15.

[0043] To improve the stability of the up-and-down movement of the motor 15 and the honing head 16, stabilizer bars 17 are fixedly installed on the left and right sides of the motor 15. The top ends of the two stabilizer bars 17 pass through the bracket 8 and are slidably connected to the bracket 8.

[0044] In order to facilitate the up-and-down movement of the mandrel 3 and to facilitate the honing head 16 to process the inner hole of the cutting wheel body 7, both the upper cover plate 13 and the lower cover plate 5 are provided with round holes, which respectively cooperate with the mandrel 3 and the honing head 16.

[0045] It should be noted that the specific models of the first electric actuator 2, the second electric actuator 9, the third electric actuator 14, and the motor 15 used shall be selected by those skilled in the art. Furthermore, the first electric actuator 2, the second electric actuator 9, the third electric actuator 14, and the motor 15 mentioned above are all existing technologies, and this solution will not elaborate on them.

[0046] The honing head 16 adopts existing technology and can be directly used with the structure of the patent with application number 201521092326.8, so it will not be described in detail.

[0047] The working principle of this utility model is as follows: In use, firstly, the first electric push rod 2, the second electric push rod 9, the third electric push rod 14, and the motor 15 are connected to an external power source. Then, by activating the first electric push rod 2, the mandrel 3 is moved upward and passes through the lower cover plate 5. Then, multiple cutting grinding wheel bodies 7 are sequentially fitted onto the mandrel 3. At this time, the outer side of the mandrel 3 contacts the inner wall of the multiple cutting grinding wheel bodies 7, thereby enabling the centering operation of the multiple cutting grinding wheel bodies 7. Then, activating the two second electric push rods 9 can drive the two sliding rods 10 and the upper cover plate. 13 moves downward, allowing the upper cover plate 13 to be fitted onto the mandrel 3 and press and fix the multiple cutting grinding wheel bodies 7. After the multiple cutting grinding wheel bodies 7 are pressed and fixed, the first electric push rod 2 can be activated to drive the mandrel 3 to move downward to below the lower cover plate 5, thereby exposing the inner holes of the multiple cutting grinding wheel bodies 7 for subsequent grinding. By activating the third electric push rod 14 and the motor 15, the honing head 16 can be driven to rotate and move downward, thereby allowing the honing head 16 to be inserted into the inner holes of the multiple cutting grinding wheel bodies 7 for grinding.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special fixture for machining the inner hole of a cutting grinding wheel, comprising a machining table (1), characterized in that, This specialized fixture also includes: The first electric push rod (2) is fixedly installed at the bottom of the processing table (1). The output shaft of the first electric push rod (2) passes through the processing table (1) and is slidably connected to the processing table (1). The bottom end of the spindle (3) is fixedly mounted on the output shaft of the first electric push rod (2); The fixing rod (6) is configured as multiple, and the bottom ends of the multiple fixing rods (6) are fixedly installed on the top of the processing table (1). The top ends of the multiple fixing rods (6) are fixedly installed with the same lower cover plate (5). The lower cover plate (5) can be detached and sleeved on the spindle (3). Multiple cutting grinding wheel bodies (7) are stacked on the top of the lower cover plate (5). The bottom end of the bracket (8) is fixedly installed on the top of the processing table (1); The clamping assembly includes: two second electric push rods (9), two slide rods (10) and an upper cover plate (13). The two second electric push rods (9) are fixedly mounted on the bracket (8). The top of the slide rod (10) is fixedly mounted on the output shaft of the corresponding second electric push rod (9). The bottom of the two slide rods (10) is fixedly mounted on the top of the upper cover plate (13). The upper cover plate (13) cooperates with the lower cover plate (5). The processing component is mounted on the support (8) and is used to grind the inner holes of multiple cutting wheel bodies (7).

2. The special fixture for machining the inner hole of a cutting grinding wheel according to claim 1, characterized in that, The bottom end of the mandrel (3) is fixedly fitted with a limiting ring (4), and the top of the limiting ring (4) is in contact with the bottom of the lower cover plate (5).

3. The special fixture for machining the inner hole of a cutting grinding wheel according to claim 1, characterized in that, The bracket (8) has grooves (11) on its left and right inner walls, and the ends of the two sliding rods (10) that are far apart from each other are slidably connected in the two grooves (11).

4. A special fixture for machining the inner hole of a cutting grinding wheel according to claim 1, characterized in that, Two springs (12) are fixedly installed on the top inner wall of the bracket (8), and the bottom end of the springs (12) is fixedly installed on the top of the corresponding slide rod (10).

5. A special fixture for machining the inner hole of a cutting grinding wheel according to claim 1, characterized in that, The processing assembly includes a third electric push rod (14), a motor (15), and a honing head (16). The third electric push rod (14) is fixedly mounted on the top of the bracket (8), the motor (15) is fixedly mounted on the output shaft of the third electric push rod (14), and the top of the honing head (16) is fixedly mounted on the output shaft of the motor (15).

6. A special fixture for machining the inner hole of a cutting grinding wheel according to claim 5, characterized in that, Stabilizer bars (17) are fixedly installed on the left and right sides of the motor (15). The top ends of the two stabilizer bars (17) pass through the bracket (8) and are slidably connected to the bracket (8).

7. A special fixture for machining the inner hole of a cutting grinding wheel according to claim 5, characterized in that, Both the upper cover plate (13) and the lower cover plate (5) are provided with round holes, which are respectively matched with the mandrel (3) and the honing head (16).

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