Brake ring inner circle face machining clamp

Abstract

The utility model relates to a machining clamp for the inner circle face of a brake ring. The machining clamp comprises a shell, a spiral disc and at least three telescopic clamping jaws. The spiral disc is arranged in the shell, and an output shaft and a servo motor connected with the spiral disc are arranged on the lower surface of the shell. The telescopic clamping jaw is arranged in the shell, penetrates through the shell and is matched with the spiral disc. Through the arrangement of the cylindrical linear motor, the effect that the clamping jaw can stretch out and draw back is achieved, that is, the rotor of the linear motor can stretch out of the guide groove, when the telescopic clamping jaw machines the inner ring of the brake ring, the linear motor is driven to enable the rotor to stretch out, the servo motor is driven to enable the rotor to clamp the outer ring of the brake ring, and therefore the machining efficiency is improved. And after the inner ring is machined, the linear motor is driven to enable the mover to retract, the mover is driven to move into the inner ring, the mover extends out and clamps the inner ring, and at the moment, the outer ring can be machined.

Description

A machining fixture for the inner circular surface of a brake ring Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to a machining fixture for the inner circular surface of a brake ring. Background Technology

[0002] Brake rings are short tubular parts, and the inner and outer cylindrical surfaces of the cast blanks need to be machined using machine tools.

[0003] To facilitate the machining of brake rings, a fixture is usually used to fix them. When using a vertical machine tool to clamp and fix the blank, since the fixture uses jaws for clamping, the inner ring surface needs to be clamped when machining the outer ring surface. After the outer ring surface is machined, the machine tool is stopped, and the fixture is manually adjusted so that the jaws clamp the outer ring surface, thus facilitating the machining of the inner ring surface. The process of stopping the machine and manually adjusting the fixture to change the clamping surface is cumbersome and time-consuming. Therefore, a machining fixture for the inner ring surface of brake rings is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] Based on the above description, this utility model provides a machining fixture for the inner circular surface of a brake ring, which solves the problem that existing fixtures require machine stoppage and manual adjustment of the fixture state when machining different surfaces of the brake ring, resulting in long processing times.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A machining fixture for the inner circular surface of a brake ring, comprising: a shell, a spiral disk and at least three telescopic jaws;

[0006] The spiral disk is disposed inside the housing, and a servo motor with an output shaft connected to the spiral disk is disposed on the lower surface of the housing;

[0007] The telescopic gripper is located inside the housing and extends through the housing, and is adapted to the spiral disk.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the outer casing includes a lower casing, and the top of the lower casing is provided with a partition and a top cover from bottom to top.

[0010] Furthermore, the lower housing includes a main housing, and at least three first mounting ears are provided on the circumferential surface of the main housing. A hollow column is provided at the bottom end of each first mounting ear, and a transmission groove is provided on the upper surface of the main housing.

[0011] Furthermore, the partition includes a circular plate, on the circumference of which a second mounting ear corresponding to the first mounting ear is provided, and the upper surface of the circular plate is provided with at least three opening slots, the end of which is open away from the axis of the circular plate.

[0012] Furthermore, the top cover includes a cover body, on the circumferential surface of which a third mounting ear and a side hole are provided. The third mounting ear corresponds to the second mounting ear. The upper surface of the cover body is provided with at least three guide grooves, which correspond to the opening groove.

[0013] Furthermore, the lower surface of the main housing is provided with a servo motor whose output shaft extends into the transmission groove, and the spiral disk includes a disc located inside the transmission groove and connected to the output shaft of the servo motor, and the upper surface of the disc is provided with a planar thread.

[0014] Furthermore, the telescopic gripper includes a movable frame, which is disposed inside the transmission groove and extends through the opening groove to the inside of the cover. A cylindrical linear motor is disposed inside the movable frame.

[0015] Furthermore, the movable frame includes two mounting blocks, each mounting block having a support column at its bottom end, and one of the support columns having a base plate at its bottom end. The lower surface of the base plate has a planar thread groove that is compatible with the planar thread.

[0016] Furthermore, each of the two mounting blocks has a mounting groove on one side opposite to the other, and each of the two support columns has a movable groove on one side opposite to the other. The mounting groove and the movable groove are interconnected. A cylindrical linear motor extending into the movable groove is installed inside the mounting groove. The cylindrical linear motor can pass through the mounting groove and extend to the top of the mounting block.

[0017] Furthermore, the mounting block is located inside the transmission groove and extends through the opening groove to the top of the opening groove. The side of the mounting block is provided with two limiting protrusions, which are located on the upper and lower sides of the circular plate, respectively, and the width of the limiting protrusions is greater than the width of the opening groove.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] 1. This utility model, by setting up components such as a shell, servo motor, spiral disk and telescopic gripper, and through the cooperation between the servo motor and the spiral disk, enables the spiral disk to rotate forward and reverse under the drive of the servo motor. When the spiral disk rotates, the telescopic gripper moves in the direction of approaching or moving away from each other, thus achieving the effect of clamping the brake ring through the moving part.

[0020] 2. By setting up a cylindrical linear motor, the gripper can extend and retract, that is, the mover of the linear motor can extend from the guide groove. When the telescopic gripper is processing the inner ring of the brake ring, the linear motor is driven to extend the mover, and then the servo motor is driven to make the mover clamp the outer ring of the brake ring. After the inner ring is processed, the linear motor is driven to retract the mover and drive the mover to move into the inner ring, so that the mover extends and clamps the inner ring. At this time, the outer ring can be processed. Attached Figure Description

[0021] Figure 1 is a schematic diagram of a machining fixture for the inner circular surface of a brake ring provided in an embodiment of this utility model;

[0022] Figure 2 is a cross-sectional view of the structure in Figure 1;

[0023] Figure 3 is a schematic diagram of the structure of the lower shell in an embodiment of this utility model;

[0024] Figure 4 is a schematic diagram of the partition structure in an embodiment of this utility model;

[0025] Figure 5 is a schematic diagram of the top cover in an embodiment of this utility model;

[0026] Figure 6 is a schematic diagram of the spiral disk in an embodiment of this utility model;

[0027] Figure 7 is a schematic diagram of the structure of the mobile frame in an embodiment of this utility model;

[0028] Figure 8 is a schematic diagram of the exploded structure in Figure 7;

[0029] Figure 9 is a schematic diagram of the usage state of the processing fixture in an embodiment of this utility model;

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Lower housing; 11. Main housing; 12. First mounting ear; 13. Hollow column; 14. Transmission groove; 2. Partition plate; 21. Circular plate; 22. Second mounting ear; 23. Opening groove; 3. Top cover; 31. Cover body; 32. Third mounting ear; 33. Guide groove; 34. Side hole; 4. Servo motor; 5. Spiral disk; 51. Circular disk; 52. Flat thread; 6. Moving frame; 61. Mounting block; 62. Limiting protrusion; 63. Support column; 64. Mounting groove; 65. Movable groove; 66. Base plate; 67. Flat thread groove; 7. Cylindrical linear motor. Detailed Implementation

[0032] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0034] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0035] Please refer to Figures 1 and 2. A machining fixture for the inner circular surface of a brake ring includes: a housing, a spiral disk 5, and at least three telescopic jaws.

[0036] The spiral disk 5 is disposed inside the housing, and a servo motor 4 with an output shaft connected to the spiral disk 5 is disposed on the lower surface of the housing;

[0037] The outer shell includes a lower shell 1, and the top of the lower shell 1 is provided with a partition 2 and a top cover 3 from bottom to top;

[0038] As shown in Figure 3, the lower housing 1 includes a main housing 11. At least three first mounting ears 12 are provided on the circumferential surface of the main housing 11. A hollow column 13 is provided at the bottom end of the first mounting ears 12. A transmission groove 14 is provided on the upper surface of the main housing 11.

[0039] As shown in Figure 4, the partition 2 includes a circular plate 21. A second mounting ear 22 corresponding to the first mounting ear 12 is provided on the circumferential surface of the circular plate 21. At least three opening slots 23 are provided on the upper surface of the circular plate 21. The end of the opening slot 23 facing away from the axis of the circular plate 21 is open.

[0040] As shown in Figure 5, the top cover 3 includes a cover body 31. The cover body 31 has a third mounting ear 32 and a side hole 34 on its circumferential surface. The third mounting ear 32 corresponds to the second mounting ear 22. The upper surface of the cover body 31 has at least three guide grooves 33, which correspond to the opening groove 23.

[0041] Based on the above, the lower housing 1, the partition 2, and the top cover 3 cooperate to form a complete outer shell. The outer shell can be fixed to the worktable of the vertical machine tool by screws and the first mounting ear 12, the second mounting ear 22, and the third mounting ear 32.

[0042] As shown in Figures 2 and 6, a servo motor 4 with an output shaft extending into the transmission groove 14 is provided on the lower surface of the main housing 11. The motor with model LKS210-10 is preferred. The spiral disk 5 includes a disc 51 located inside the transmission groove 14 and connected to the output shaft of the servo motor 4. The upper surface of the disc 51 is provided with a planar thread 52.

[0043] Based on the above, when the servo motor 4 is powered on, it drives the disk 51 to rotate, and at the same time the planar thread 52 rotates together.

[0044] As shown in Figures 2, 7 and 8, the telescopic gripper includes a movable frame 6. The movable frame 6 is disposed inside the transmission groove 14 and extends through the opening groove 23 to the inside of the cover 31. A cylindrical linear motor 7 is disposed inside the movable frame 6, preferably a cylindrical linear motor of model XRL250.

[0045] The movable frame 6 includes two mounting blocks 61. The bottom end of each mounting block 61 is provided with a support column 63. The bottom end of one of the support columns 63 is provided with a base plate 66. The lower surface of the base plate 66 is provided with a planar thread groove 67 that is adapted to the planar thread 52. Each of the two mounting blocks 61 is provided with a mounting groove 64 on one side opposite to each other. Each of the two support columns 63 is provided with a movable groove 65 on one side opposite to each other. The mounting groove 64 and the movable groove 65 are interconnected. A cylindrical linear motor 7 is provided inside the mounting groove 64 and extends into the movable groove 65. The cylindrical linear motor 7 can pass through the mounting groove 64 and extend to the top of the mounting block 61.

[0046] The mounting block 61 is located inside the transmission groove 14 and extends through the opening groove 23 to the top of the opening groove 23. The mounting block 61 has two limiting protrusions 62 on its side. The two limiting protrusions 62 are located on the upper and lower sides of the circular plate 21 respectively, and the width of the limiting protrusions 62 is greater than the width of the opening groove 23.

[0047] Based on the above, the limiting protrusion 62 and the opening slot 23 cooperate with each other, so that the moving frame 6 can only move along the direction of the opening slot 23. The base plate 66, the planar threaded groove 67 and the planar thread 52 cooperate with each other, so that the moving frame 6 can move along the direction of the opening slot 23 with the cooperation of the planar threaded groove 67 and the planar thread 52. And through the setting of the cylindrical linear motor 7, the mover can extend (as shown in Figure 9) or retract (as shown in Figure 1).

[0048] In summary, the fixture drives the spiral disk 5 to rotate via the servo motor 4, causing the moving frame 6 to move along the direction of the opening slot 23 under the drive of the spiral disk 5. The moving part is extended by driving the cylindrical linear motor 7, and the brake ring is placed between the three moving parts, so that the moving parts continuously move towards the brake ring and tightly fit with the outer ring of the brake ring to achieve clamping and fixing of the brake ring. At this time, it is convenient for the vertical machine tool to process the inner ring of the brake ring.

[0049] After the inner ring is machined, the servo motor 4 is reversed, causing the mover to separate from the outer surface of the brake ring. The mover is then retracted, as shown in Figure 1. At this time, the servo motor 4 is rotated, causing the moving frame 6 to move towards the brake ring. After moving to the position inside the brake ring, the mover is extended. After the mover extends, the rotation direction of the servo motor 4 is controlled to make the mover fit tightly against the inner ring of the brake ring, thereby achieving clamping of the brake ring. This makes it easier to machine the outer ring of the brake ring.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A machining fixture for the inner circular surface of a brake ring, characterized in that, include: The outer casing, the spiral disc (5), and at least three telescopic grippers; The spiral disk (5) is located inside the housing, and a servo motor (4) with an output shaft connected to the spiral disk (5) is provided on the lower surface of the housing; the telescopic gripper is located inside the housing, penetrates the housing, and is adapted to the spiral disk (5).

2. The machining fixture for the inner circular surface of the brake ring according to claim 1, characterized in that, The outer shell includes a lower shell (1), and the top of the lower shell (1) is provided with a partition (2) and a top cover (3) from bottom to top.

3. The machining fixture for the inner circular surface of the brake ring according to claim 2, characterized in that, The lower housing (1) includes a main housing (11), and at least three first mounting ears (12) are provided on the circumferential surface of the main housing (11). A hollow column (13) is provided at the bottom end of the first mounting ear (12), and a transmission groove (14) is provided on the upper surface of the main housing (11).

4. The machining fixture for the inner circular surface of the brake ring according to claim 3, characterized in that, The partition (2) includes a circular plate (21), and a second mounting ear (22) corresponding to the first mounting ear (12) is provided on the circumferential surface of the circular plate (21). At least three opening slots (23) are provided on the upper surface of the circular plate (21), and the end of the opening slot (23) opposite to the axis of the circular plate (21) is open.

5. The machining fixture for the inner circular surface of the brake ring according to claim 4, characterized in that, The top cover (3) includes a cover body (31), on the circumferential surface of the cover body (31) are provided a third mounting ear (32) and a side hole (34), the third mounting ear (32) corresponds to the second mounting ear (22), and the upper surface of the cover body (31) is provided with at least three guide grooves (33), the guide grooves (33) correspond to the opening groove (23).

6. The machining fixture for the inner circular surface of the brake ring according to claim 5, characterized in that, The lower surface of the main housing (11) is provided with a servo motor (4) whose output shaft extends into the transmission groove (14). The spiral disk (5) includes a disc (51) located inside the transmission groove (14) and connected to the output shaft of the servo motor (4). The upper surface of the disc (51) is provided with a planar thread (52).

7. The machining fixture for the inner circular surface of the brake ring according to claim 6, characterized in that, The telescopic gripper includes a movable frame (6), which is located inside the transmission groove (14) and extends through the opening groove (23) to the inside of the cover (31). A cylindrical linear motor (7) is installed inside the movable frame (6).

8. The machining fixture for the inner circular surface of the brake ring according to claim 7, characterized in that, The movable frame (6) includes two mounting blocks (61), and a support column (63) is provided at the bottom end of the mounting block (61). A base plate (66) is provided at the bottom end of one of the support columns (63), and a planar thread groove (67) adapted to the planar thread (52) is provided on the lower surface of the base plate (66).

9. The machining fixture for the inner circular surface of the brake ring according to claim 8, characterized in that, Each of the two mounting blocks (61) has a mounting groove (64) on one side opposite to the other, and each of the two support columns (63) has a movable groove (65) on one side opposite to the other. The mounting groove (64) and the movable groove (65) are connected to each other. A cylindrical linear motor (7) extending into the movable groove (65) is provided inside the mounting groove (64). The cylindrical linear motor (7) can pass through the mounting groove (64) and extend to the top of the mounting block (61).

10. The machining fixture for the inner circular surface of the brake ring according to claim 9, characterized in that, The mounting block (61) is located inside the transmission groove (14) and extends through the opening groove (23) to the top of the opening groove (23). The mounting block (61) has two limiting protrusions (62) on its side. The two limiting protrusions (62) are located on the upper and lower sides of the circular plate (21) respectively, and the width of the limiting protrusions (62) is greater than the width of the opening groove (23).

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