A jig for machining sector gears

Abstract

This utility model relates to the field of sector gear processing technology, and in particular to a jig for processing sector gears, including a mounting frame. Vertical plates are welded to both sides of the mounting frame. A rotating shell is rotatably connected to the opposite side of each vertical plate. Pin plates are welded to both sides of the top of the rotating shell. Threaded holes are formed on the surface of each vertical plate, and positioning bolts are threaded into the inner cavities of the threaded holes. This utility model places the sector gear body to be processed between two clamping plates. Then, rotating a third threaded rod causes the clamping plates to move back and forth, clamping the sector gear body from front to back. Rotating a first threaded rod causes a drive block to move up and down, which in turn rotates the support shell, adjusting its tilt angle. After clamping, the sector gear body can be processed. When the processing angle needs to be adjusted, the positioning bolts are rotated to unscrew the gear from the pin plates and threaded holes.

Description

Technical Field

[0001] This utility model relates to the field of sector gear processing technology, specifically a jig for sector gear processing. Background Technology

[0002] A sector gear is a special type of gear with an arc-shaped tooth profile. It is typically used in applications with large transmission angles. When machining sector gears, a fixture is usually required.

[0003] A search revealed that the announcement number is CN222405235U, and the name is a jig for processing sector gears, including a support plate. Through research and analysis, it was found that although it has the advantages of being easy to adjust, being able to stably clamp sector gears of different sizes and dimensions, preventing them from shaking during processing, and being convenient for workers to use, it also has the following disadvantages to a certain extent.

[0004] For example, when the device is in use, after clamping the sector gear, it is only convenient to process the top of the sector gear. When it is necessary to process the other side of the sector gear, the operator needs to manually adjust it, which is inconvenient for the operator to use. In order to solve the above technical problems, we have designed a jig for processing sector gears. Utility Model Content

[0005] The purpose of this utility model is to provide a jig for processing sector gears, which has the advantage of easy adjustment. It solves the problem that when the device clamps the sector gear, it is only convenient to process the top of the sector gear. When it is necessary to process the other side of the sector gear, the operator needs to manually adjust it, which is inconvenient for the operator.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a jig for processing sector gears, comprising a mounting frame, vertical plates welded to both sides of the mounting frame, a rotating shell rotatably connected to the opposite side of the vertical plates, pin plates welded to both sides of the top of the rotating shell, threaded holes formed on the surface of the vertical plates, positioning bolts threadedly connected to the inner cavity of the threaded holes, a bidirectional threaded rod rotatably connected to the inner cavity of the rotating shell, a threaded block threadedly fitted onto the surface of the bidirectional threaded rod, a support shell rotatably connected to the top of the threaded block, a first threaded rod rotatably connected to the top of the threaded block, a driving block threadedly fitted onto the surface of the first threaded rod, a sliding connection between the surface of the driving block and the support shell, L-shaped plates welded to the front and rear sides of the rotating shell, a third threaded rod penetrating through the opposite side of the L-shaped plates, a clamping plate rotatably connected to the opposite side of the third threaded rod, a sector gear body clamped on the opposite side of the clamping plate, and a support assembly installed in the inner cavity of the mounting frame.

[0007] Preferably, the support assembly includes a fourth threaded rod, with one side of the fourth threaded rod extending into the inner cavity of the mounting bracket. A driving block is threadedly fitted onto the surface of the fourth threaded rod, and a driving sleeve is rotatably connected to the top of the driving block. A fifth threaded rod is provided through the top of the driving sleeve, and a support plate is bolted to the top of the fifth threaded rod.

[0008] Preferably, the surface of the fifth threaded rod is threadedly connected to the drive sleeve, and the surface of the drive sleeve is provided with anti-slip texture.

[0009] Preferably, the surface of the third threaded rod is threadedly connected to the L-shaped plate, and a positioning block is welded to the front side of the rear clamping plate. The surface of the positioning block is slidably connected to the sector gear body and the front clamping plate, respectively.

[0010] Preferably, the inner cavity of the support shell is provided with a sliding groove, and the front and rear sides of the drive block are slidably connected to the sliding groove.

[0011] Preferably, a handle is rotatably connected to the left side of the rotating shell, and the left side of the rotating plate passes through the vertical plate and is rotatably connected to the vertical plate.

[0012] Preferably, the inner cavity of the rotating shell is welded with a barrier block, and the thread directions on both sides of the surface of the bidirectional threaded rod are opposite.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In this utility model, the main body of the sector gear to be processed is placed between two clamping plates. Then, the third threaded rod is rotated to drive the clamping plates to move back and forth. The two clamping plates clamp the main body of the sector gear. Then, the first threaded rod is rotated to drive the drive block to move up and down. The drive block drives the support shell to rotate. The tilt angle of the support shell is adjusted. After adjusting to a suitable angle, the double-threaded rod is rotated to drive the threaded block, support shell, first threaded rod and drive block to move laterally, so that the two support shells come into contact with the main body of the sector gear. The two support shells clamp the main body of the sector gear from left to right.

[0015] 2. After clamping, the main body of the sector gear can be processed. When the processing angle needs to be adjusted, the positioning bolt is rotated to unscrew it from the pin plate and threaded hole. Then, the rotating shell is rotated to drive the pin plate, threaded block, support shell, L-shaped plate, third threaded rod, clamping plate and sector gear body to rotate, thereby adjusting the angle of the sector gear body. After adjusting to the appropriate angle, the positioning bolt is screwed back to fix the rotating shell and sector gear body. Then, it can be processed again. When the sector gear body needs to be processed horizontally, the sector gear body is adjusted to a horizontal position with the mounting frame. Then, the fifth threaded rod and support plate are moved up and down by rotating the drive sleeve, so that the top of the support plate contacts the sector gear body. The support plate supports the sector gear body, which facilitates the subsequent processing of the sector gear body. Attached Figure Description

[0016] Figure 1 This is an isometric view of the structure of this utility model;

[0017] Figure 2 This is a perspective view of the fourth threaded rod and support plate of this utility model;

[0018] Figure 3 This is a perspective view of the rotating shell and clamping plate of this utility model;

[0019] Figure 4 This is a perspective view of the bidirectional threaded rod and drive block of this utility model.

[0020] In the diagram: 1. Mounting bracket; 2. Vertical plate; 3. Rotating shell; 4. Pin plate; 5. Threaded hole; 6. Positioning bolt; 7. Two-way threaded rod; 8. Threaded block; 9. Support shell; 10. First threaded rod; 11. Drive block; 12. L-shaped plate; 13. Third threaded rod; 14. Clamping plate; 15. Sector gear body; 16. Fourth threaded rod; 17. Drive block; 18. Drive sleeve; 19. Fifth threaded rod; 20. Support plate; 21. Support assembly. Detailed Implementation

[0021] Please see Figures 1-4A jig for processing sector gears includes a mounting frame 1. Vertical plates 2 are welded to both sides of the mounting frame 1. A rotating shell 3 is rotatably connected to the opposite side of the vertical plates 2. Pin plates 4 are welded to both sides of the top of the rotating shell 3. Threaded holes 5 are opened on the surface of the vertical plates 2. Positioning bolts 6 are threadedly connected to the inner cavity of the threaded holes 5. A bidirectional threaded rod 7 is rotatably connected to the inner cavity of the rotating shell 3. A threaded block 8 is threadedly fitted on the surface of the bidirectional threaded rod 7. A support shell 9 is rotatably connected to the top of the threaded block 8. A first threaded rod 10 is rotatably connected to the top of the threaded block 8. A driving block 11 is threadedly fitted on the surface of the first threaded rod 10. The surface of the driving block 11 is slidably connected to the support shell 9. L-shaped plates 12 are welded to the front and rear sides of the rotating shell 3. A third threaded rod 13 is provided through the opposite side of the L-shaped plate 12. A clamping plate 14 is rotatably connected to the opposite side of the third threaded rod 13. A sector gear body 15 is clamped on the opposite side of the clamping plate 14. A support assembly 21 is installed in the inner cavity of the mounting frame 1.

[0022] Please see Figure 1 and Figure 2 The support assembly 21 includes a fourth threaded rod 16, with one side of the fourth threaded rod 16 extending into the inner cavity of the mounting bracket 1. A drive block 17 is threadedly fitted onto the surface of the fourth threaded rod 16. By setting the fourth threaded rod 16, the positions of the drive block 17 and the support plate 20 can be easily adjusted, and the horizontal sector gear body 15 can be easily supported. A drive sleeve 18 is rotatably connected to the top of the drive block 17, and a fifth threaded rod 19 is provided through the top of the drive sleeve 18. The top of the fifth threaded rod 19 is bolted to the support plate 20.

[0023] Please see Figure 1 and Figure 2 The surface of the fifth threaded rod 19 is threadedly connected to the drive sleeve 18. By setting the drive sleeve 18 and the fifth threaded rod 19, the height of the support plate 20 can be easily adjusted, and the horizontal sector gear body 15 can be easily supported. The surface of the drive sleeve 18 is provided with anti-slip texture.

[0024] Please see Figure 1 and Figure 3 The surface of the third threaded rod 13 is threadedly connected to the L-shaped plate 12. A positioning block is welded to the front side of the rear clamping plate 14. By setting the positioning block, it is easy to position the sector gear body 15 and keep the sector gear body 15 stable. The surface of the positioning block is slidably connected to the sector gear body 15 and the front clamping plate 14 respectively.

[0025] Please see Figure 1 and Figure 4The inner cavity of the support shell 9 is provided with a sliding groove. By setting the sliding groove, the support shell 9 can be easily guided, the drive block 11 can easily drive the support shell 9 to rotate, and the support shell 9 can be easily adjusted. The front and rear sides of the drive block 11 are slidably connected to the sliding groove.

[0026] Please see Figure 1 and Figure 3 A handle is rotatably connected to the left side of the rotating shell 3. By setting the handle, it is easy for the staff to grip the rotating shell 3 and to rotate it. The left side of the rotating plate passes through the vertical plate 2 and is rotatably connected to the vertical plate 2.

[0027] Please see Figure 1 and Figure 4 The inner cavity of the rotating shell 3 is welded with a barrier block. By setting the barrier block, it is easy to separate the two threaded blocks 8, which can effectively prevent the two threaded blocks 8 from colliding. The threads on both sides of the surface of the bidirectional threaded rod 7 are in opposite directions.

[0028] In use, the sector gear body 15 to be processed is placed between two clamping plates 14. Then, the third threaded rod 13 is rotated to drive the clamping plates 14 to move back and forth, clamping the sector gear body 15 in the back and forth position. Then, the first threaded rod 10 is rotated to drive the drive block 11 to move up and down, which in turn drives the support shell 9 to rotate, adjusting the tilt angle of the support shell 9. After adjusting to the appropriate angle, the double-ended threaded rod 7 is rotated to drive the threaded block 8, support shell 9, first threaded rod 10, and drive block 11 to move laterally, so that the two support shells 9 contact the sector gear body 15, clamping the sector gear body 15 left and right. After clamping, the sector gear body 15 can be processed. When it is necessary to adjust the processing angle, the positioning bolt is rotated. 6. Unscrew it from the pin plate 4 and threaded hole 5, then rotate the rotating shell 3 to drive the pin plate 4, threaded block 8, support shell 9, L-shaped plate 12, third threaded rod 13, clamping plate 14 and sector gear body 15 to rotate, adjust the angle of sector gear body 15, and after adjusting to the appropriate angle, screw back the positioning bolt 6 to fix the rotating shell 3 and sector gear body 15, and then it can be processed again. When it is necessary to perform horizontal processing on sector gear body 15, adjust sector gear body 15 to a horizontal position with mounting bracket 1, and then drive the fifth threaded rod 19 and support plate 20 to move up and down by rotating drive sleeve 18, so that the top of support plate 20 contacts sector gear body 15, and support sector gear body 15 is supported by support plate 20, which facilitates subsequent processing of sector gear body 15.

[0029] In summary, this jig for processing sector gears, through the drive block 17, drive sleeve 18, fifth threaded rod 19, support plate 20, and support assembly 21, solves the problem that when the device clamps the sector gear, it is only convenient to process the top of the sector gear, and when processing the other side of the sector gear is required, the operator needs to manually adjust it, which is inconvenient for the operator.

Claims

1. A jig for machining sector gears, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) has vertical plates (2) welded to both sides. A rotating shell (3) is rotatably connected to the opposite side of the vertical plates (2). Pin plates (4) are welded to both sides of the top of the rotating shell (3). Threaded holes (5) are opened on the surface of the vertical plates (2). A positioning bolt (6) is threaded into the inner cavity of the threaded holes (5). A bidirectional threaded rod (7) is rotatably connected to the inner cavity of the rotating shell (3). A threaded block (8) is threaded onto the surface of the bidirectional threaded rod (7). A support shell (9) is rotatably connected to the top of the threaded block (8). A first threaded rod (10) is dynamically connected, and a drive block (11) is threadedly fitted on the surface of the first threaded rod (10). The surface of the drive block (11) is slidably connected to the support shell (9). L-shaped plates (12) are welded to the front and rear sides of the rotating shell (3). A third threaded rod (13) is provided through the opposite side of the L-shaped plate (12). A clamping plate (14) is rotatably connected to the opposite side of the third threaded rod (13). The opposite side of the clamping plate (14) holds the main body of the sector gear (15). A support assembly (21) is installed in the inner cavity of the mounting frame (1).

2. The jig for machining sector gears according to claim 1, characterized in that: The support assembly (21) includes a fourth threaded rod (16), one side of which extends into the inner cavity of the mounting bracket (1). A drive block (17) is threaded onto the surface of the fourth threaded rod (16). A drive sleeve (18) is rotatably connected to the top of the drive block (17). A fifth threaded rod (19) is provided through the top of the drive sleeve (18). A support plate (20) is bolted to the top of the fifth threaded rod (19).

3. The jig for machining sector gears according to claim 2, characterized in that: The surface of the fifth threaded rod (19) is threadedly connected to the drive sleeve (18), and the surface of the drive sleeve (18) is provided with anti-slip texture.

4. The jig for machining sector gears according to claim 1, characterized in that: The surface of the third threaded rod (13) is threadedly connected to the L-shaped plate (12), and a positioning block is welded to the front side of the rear clamping plate (14). The surface of the positioning block is slidably connected to the fan gear body (15) and the front clamping plate (14) respectively.

5. A jig for machining sector gears according to claim 1, characterized in that: The inner cavity of the support shell (9) is provided with a sliding groove, and the front and rear sides of the drive block (11) are slidably connected to the sliding groove.

6. A jig for machining sector gears according to claim 1, characterized in that: The left side of the rotating shell (3) is rotatably connected to a handle, and the left side of the rotating plate passes through the vertical plate (2) and is rotatably connected to the vertical plate (2).

7. A jig for machining sector gears according to claim 1, characterized in that: The inner cavity of the rotating shell (3) is welded with a blocking block, and the threads on both sides of the surface of the bidirectional threaded rod (7) are opposite.

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