Sector gear machining jig

Abstract

The utility model discloses a sector gear machining jig which comprises a jig body, a spiral groove is formed in the jig body, an arc-shaped groove is formed in the jig body, an arc-shaped rod is clamped at the position of the arc-shaped groove, meshing teeth meshed with a sector gear are fixedly connected to the arc-shaped rod, and the arc-shaped rod and the sector gear are in threaded connection. And a limiting piece for limiting the arc-shaped rod is arranged on the jig body. According to the utility model, when one side of the sector gear is subjected to groove milling, under the action of the meshing teeth, the position of the sector groove can be limited, the sector gear can be stably fixed by being matched with the fixing action of the bolt, the phenomenon of eccentricity is avoided when the end face of the sector gear is subjected to groove milling, and after one side of the sector gear is subjected to groove milling, the sector gear can be turned over; and the milling groove is clamped with the milling groove block, and the sector gear is limited again, so that the milling groove operation can be stably completed on the two surfaces of the sector gear.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a sector gear processing jig. Background Art

[0002] The processing of sector gears includes chamfering the inner hole of the sector gears and turning the end faces of the sector gears. After the existing sector gear turning jigs are clamped with the sector gears, looseness and eccentricity are easily generated during the processing, which affects the turning accuracy and results in a low qualified rate of finished products.

[0003] Therefore, it is necessary to improve the traditional gear processing fixture to avoid the eccentricity of the gear during turning. Utility Model Content

[0004] The purpose of the utility model is to provide a sector gear processing jig in order to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sector gear processing jig comprises a jig body, a screw groove is provided on the jig body, an arc groove is provided on the jig body, an arc rod is engaged at the arc groove, meshing teeth meshing with the sector gear are fixedly connected to the arc rod, a limiter for limiting the position of the arc rod is provided on the jig body, a milling block adapted to the milling groove of the sector gear is provided on the jig body, a fixing ring is fixedly connected to the jig body, and the fixing ring extends into the inner hole of the sector gear, and the fixing ring and the screw groove are threadedly connected to a bolt, and a hexagonal groove is provided at the screw head of the bolt.

[0007] Preferably, the limiting member includes a connecting rod fixedly connected to the arc rod, a notch matched with the connecting rod is formed on the jig body, a side groove connected with the notch is formed on the side wall of the jig body, a spring is fixedly connected to the side groove, the end of the spring abuts against a sleeve block, the end of the sleeve block is fixedly connected to a clamping rod, a corresponding hole is formed on the connecting rod, a clamping groove matched with the corresponding hole is formed at the notch, and the clamping rod passes through the corresponding hole and engages with the clamping groove.

[0008] Preferably, a fixing rod is fixedly connected to the side groove, a through hole is formed on the sleeve block and the clamping rod, and the fixing rod is slidably connected to the through hole.

[0009] Preferably, a square block is fixedly connected to the outer wall of the sleeve block, a square groove is provided at the side groove, and the square block extends into the square groove during rotation.

[0010] Preferably, during the movement of the sleeve block and the clamping rod, the fixing rod is slidably connected to the through hole.

[0011] Preferably, a groove is provided on the jig body, and the groove is matched with the protruding surface of the sector gear, and at this time, the side surface of the sector gear is in contact with the surface of the jig body.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. When the present application mills a groove on one side of the sector gear, the position of the sector groove can be limited under the action of the meshing teeth, and the sector gear can be stably fixed with the fixing action of the bolts. There will be no eccentricity when the end face of the sector gear is milled. After the milling of one side of the sector gear is completed, the sector gear can be turned over, the milling groove is engaged with the milling groove block, and the sector gear is limited again, so the milling operation can be stably completed on both sides of the sector gear.

[0014] 2. The present application can push the sleeve block and the clamping rod to move together under the elastic force of the spring until the clamping rod passes through the corresponding hole and engages with the clamping groove. At this time, the position of the connecting rod is fixed, so the position of the arc rod is fixed, and the meshing teeth on the arc rod mesh with the teeth of the fan gear, which has a limiting effect on the fan gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure schematic diagram of the sector gear processing jig provided according to the embodiment of the utility model is shown;

[0016] Figure 2 A schematic diagram of the structure of a sector gear provided according to an embodiment of the utility model is shown;

[0017] Figure 3 A schematic diagram of the structure of a sector gear machining jig according to an embodiment of the utility model is shown;

[0018] Figure 4 A schematic diagram of the structure of the arc-shaped rod portion provided according to an embodiment of the utility model is shown;

[0019] Legend:

[0020] 1. Fixture body; 2. Screw groove; 3. Groove; 4. Arc groove; 5. Notch; 6. Clamping groove; 7. Side groove; 8. Square groove; 9. Fixing rod; 10. Spring; 11. Bushing block; 12. Clamping rod; 13. Through hole; 14. Arc rod; 15. Engaging teeth; 16. Connecting rod; 17. Corresponding hole; 18. Bolt; 19. Hexagonal groove; 20. Fixing ring; 21. Milling groove block; 22. Block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A sector gear processing jig includes a jig body 1, a screw groove 2 is provided on the jig body 1, an arc groove 4 is provided on the jig body 1, an arc rod 14 is engaged at the arc groove 4, an engaging tooth 15 engaged with the sector gear is fixedly connected to the arc rod 14, a limiter for limiting the position of the arc rod 14 is provided on the jig body 1, a milling groove block 21 adapted to the milling groove of the sector gear is provided on the jig body 1, a fixing ring 20 is fixedly connected to the jig body 1, and the fixing ring 20 extends into the inner hole of the sector gear, and the fixing ring 20 and the screw groove 2 are connected to the bolt 18 by threads, and a hexagonal groove 19 is provided at the screw head of the bolt 18. When a hexagonal wrench is engaged with the hexagonal groove 19, the bolt 18 can be rotated together during the rotation of the hexagonal wrench, and the bolt 18 fixes the sector gear on the jig body 1.

[0024] Specifically, Figure 1 As shown, the limiter includes a connecting rod 16 fixedly connected to the arc rod 14, a notch 5 adapted to the connecting rod 16 is provided on the fixture body 1, a side groove 7 connected to the notch 5 is provided on the side wall of the fixture body 1, a spring 10 is fixedly connected to the side groove 7, a sleeve block 11 is abutted at the end of the spring 10, a clamping rod 12 is fixedly connected to the end of the sleeve block 11, a corresponding hole 17 is provided on the connecting rod 16, a clamping groove 6 adapted to the corresponding hole 17 is provided at the notch 5, and the clamping rod 12 penetrates the corresponding hole 17 and is clamped with the clamping groove 6. A square block 22 is fixedly connected to the outer wall of the sleeve block 11, a square groove 8 is provided at the side groove 7, and the square block 22 extends into the square groove 8 during rotation, and the sleeve block 11 and the clamping rod 12 cannot be moved under force at this time.

[0025] Specifically, Figure 1 and Figure 3 As shown, a fixing rod 9 is fixedly connected to the side groove 7, a through hole 13 is provided on the sleeve block 11 and the clamping rod 12, and the fixing rod 9 is slidably connected to the through hole 13. When the sleeve block 11 and the clamping rod 12 are moving, the fixing rod 9 is slidably connected to the through hole 13.

[0026] Specifically, Figure 3As shown, a groove 3 is provided on the fixture body 1 , and the groove 3 is matched with the protruding surface of the sector gear. At this time, the side surface of the sector gear is in contact with the surface of the fixture body 1 .

[0027] In summary, the present embodiment provides a method of inserting the front of the sector gear into the groove 3, pushing the block 22 to move until the clamping rod 12 is away from the notch 5. Then the arc rod 14 can be inserted into the arc groove 4, the connecting rod 16 can be inserted into the notch 5, and the meshing teeth 15 can mesh with the teeth of the sector gear. Release the thrust on the block 22, and under the elastic force of the spring 10, the clamping rod 12 passes through the corresponding hole 17 and engages with the clamping groove 6, and the sleeve 11 abuts against the side wall of the connecting rod 16. Turn the block 22 so that the block 22 extends into the square groove 8. Insert the bolt 18 into the inner hole of the sector gear, use a hexagonal wrench to engage with the hexagonal groove 19, and rotate the hexagonal wrench so that the bolt 18 is connected to the screw groove 2 through a thread until the screw head of the bolt 18 presses the sector gear and fixes it to the fixture body 1.

[0028] At this time, the upper end face of the sector gear can be milled. After the milling of the face is completed, the above steps are reversed to remove the sector gear. The milled groove on the sector gear is engaged with the milling block 21, and the inner hole of the bolt 18 that passes through the sector gear is connected to the inner side of the fixing ring 20 by threading until the screw head of the bolt 18 fixes the sector gear to the fixture body 1. The staff can then perform the milling operation on the upper end face of the sector gear.

[0029] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sector gear machining jig, comprising a jig body (1), characterized in that: The jig body (1) is provided with a screw groove (2), the jig body (1) is provided with an arc groove (4), an arc rod (14) is engaged at the arc groove (4), the arc rod (14) is fixedly connected with a meshing tooth (15) meshing with a sector gear, the jig body (1) is provided with a limiter for limiting the position of the arc rod (14), the jig body (1) is provided with a milling groove block (21) adapted to the milling groove of the sector gear, the jig body (1) is fixedly connected with a fixing ring (20), and the fixing ring (20) extends into the inner hole of the sector gear, and the fixing ring (20) and the screw groove (2) are connected to the bolt (18) by threading, and the bolt (18) has a hexagonal groove (19) at the screw head.

2. A sector gear processing jig according to claim 1, characterized in that: The limiting component comprises a connecting rod (16) fixedly connected to the arc rod (14); a notch (5) matched with the connecting rod (16) is provided on the fixture body (1); a side groove (7) connected with the notch (5) is provided on the side wall of the fixture body (1); a spring (10) is fixedly connected to the side groove (7); an end of the spring (10) abuts against a sleeve block (11); an end of the sleeve block (11) is fixedly connected to a clamping rod (12); a corresponding hole (17) is provided on the connecting rod (16); a clamping groove (6) matched with the corresponding hole (17) is provided on the notch (5); and the clamping rod (12) passes through the corresponding hole (17) and is clamped with the clamping groove (6).

3. A sector gear processing jig according to claim 2, characterized in that: A fixing rod (9) is fixedly connected to the side groove (7), a through hole (13) is provided on the sleeve block (11) and the clamping rod (12), and the fixing rod (9) is slidably connected to the through hole (13).

4. A sector gear processing jig according to claim 2, characterized in that: A square block (22) is fixedly connected to the outer wall of the sleeve block (11), a square groove (8) is provided at the side groove (7), and the square block (22) extends into the square groove (8) during rotation.

5. The sector gear machining jig according to claim 3, characterized in that: When the sleeve block (11) and the clamping rod (12) are moving, the fixing rod (9) is slidably connected to the through hole (13).

6. The sector gear machining jig according to claim 1, characterized in that: The jig body (1) is provided with a groove (3), and the groove (3) is matched with the protruding surface of the sector gear, and at this time, the side surface of the sector gear is in contact with the surface of the jig body (1).

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