A drilling fixture for a support hole of a rotating shaft assembly

Abstract

The present invention provides a drilling fixture for the support hole of a rotating shaft assembly, wherein the rotating shaft assembly comprises a rotating shaft, bearing supports are respectively installed at the left and right ends of the rotating shaft, a shaft seat plate is arranged on the outer circumferential surface of the rotating shaft, seat holes are respectively arranged on the left and right sides of the shaft seat plate, the drilling fixture comprises a template, a top column and a limiting column, a drill sleeve is embedded in the template, one end of the top column is fixedly connected to the template, the other end of the top column is fixedly connected to the workbench of a drilling machine, a supporting column is also fixedly connected to the template, one end of the limiting column is hinged to the supporting column, the other end of the limiting column is threadedly connected with a limiting nut and a locking nut after passing through the seat hole, and a pressure plate is clamped between the limiting nut and the locking nut. The technical solution of the present invention is adopted, and the seat hole preset on the rotating shaft assembly is used as a positioning reference, so as to realize the rapid clamping of the rotating shaft assembly, limit the freedom of movement of the rotating shaft assembly in multiple directions, lay a foundation for improving the drilling processing accuracy, and improve production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing equipment, and in particular relates to a drilling fixture for a support hole of a rotating shaft component. Background Art

[0002] With the continuous development of manufacturing technology, the demand for various non-metallic parts is increasing, and the requirements for the shape and performance of such non-metallic parts are also getting higher and higher. The shaft components used in the engine control system of Mouxing aircraft, such as Figure 1 As shown, the rotating shaft assembly includes a rotating shaft, bearing supports are respectively installed at the left and right ends of the rotating shaft, a shaft seat plate is arranged on the outer circumferential surface of the rotating shaft, and seat holes are respectively arranged on the left and right sides of the shaft seat plate. After processing other characteristic elements of the rotating shaft assembly, it is necessary to drill a number of mounting holes on its bearing support to facilitate the installation of the rotating shaft assembly. Since the shape of the rotating shaft assembly is extremely irregular, the drilling process is difficult, and the drilling processing accuracy is difficult to guarantee. Therefore, there is an urgent need to develop a drilling fixture that is easy to clamp, easy to operate, and can effectively guarantee the processing accuracy. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a drilling fixture for the support hole of a rotating shaft assembly.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides a drilling fixture for a support hole of a rotating shaft assembly, wherein the rotating shaft assembly comprises a rotating shaft, bearing supports are respectively installed at the left and right ends of the rotating shaft, a shaft seat plate is arranged on the outer circumferential surface of the rotating shaft, seat holes are respectively arranged on the left and right sides of the shaft seat plate, the drilling fixture comprises a template, a top column and a limit column, a drill sleeve is embedded in the template, one end of the top column is fixedly connected to the template, the other end of the top column is fixedly connected to the workbench of a drilling machine, a supporting column is also fixedly connected to the template, one end of the limiting column is hinged to the supporting column, the other end of the limiting column is threadedly connected to a limiting nut and a locking nut after passing through the seat hole, and a pressure plate is clamped between the limiting nut and the locking nut.

[0006] A cushion block is sandwiched between the pressure plate and the shaft seat plate. There are multiple seat holes, and the number and arrangement positions of the cushion blocks correspond one-to-one to the seat holes.

[0007] The shaft seat plate, the cushion block and the pressure plate are also fixed together correspondingly by using connecting bolts and connecting nuts.

[0008] The material of the cushion block is rubber.

[0009] The drilling fixture also includes an articulated bolt and an articulated nut. The tail of the articulated bolt is threadedly connected to the articulated nut. The limiting column and the supporting column are both clamped between the head of the articulated bolt and the articulated nut.

[0010] The nominal diameter of the hinge nut is not less than M6.

[0011] The nominal diameter of the limit nut or locking nut shall not be less than M8.

[0012] The locking nut is a butterfly nut.

[0013] The number of drill sleeves is 8.

[0014] The number of the top columns is 4.

[0015] The beneficial effects of the present invention are as follows: by adopting the technical scheme of the present invention, the preset seat hole on the rotating shaft assembly is used as a positioning reference, and the rotating shaft assembly is clamped by components such as supporting columns, limiting columns, limiting nuts, locking nuts and pressure plates, thereby limiting the freedom of movement of the rotating shaft assembly in multiple directions, laying a foundation for improving the drilling processing accuracy. In addition, at least one end of the limiting column is connected to the supporting column by a hinged manner, which is convenient for rapid clamping and disassembly of the rotating shaft assembly, and the operation is very convenient, shortening the production process and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view of the shaft assembly of the present invention;

[0017] Figure 2 is a top view of the shaft assembly of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the drilling fixture of the present invention.

[0019] In the figure: 1-rotating shaft, 2-bearing support, 3-shaft seat plate, 4-seat hole, 5-template, 6-top column, 7-limit column, 8-drill sleeve, 9-support column, 10-limit nut, 11-locking nut, 12-pressure plate, 13-spacer, 14-connecting bolt, 15-hinge bolt, 16-hinge nut. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0021] like Figures 1 to 3As shown, the present invention provides a drilling fixture for the support hole of a rotating shaft assembly, the rotating shaft assembly includes a rotating shaft 1, bearing supports 2 are respectively installed at the left and right ends of the rotating shaft 1, a shaft seat plate 3 is arranged on the outer circumferential surface of the rotating shaft 1, and seat holes 4 are respectively arranged on the left and right sides of the shaft seat plate 3, the drilling fixture includes a template 5, a top column 6 and a limiting column 7, a drill sleeve 8 is embedded in the template 5, one end of the top column 6 is fixedly connected to the template 5, and the other end of the top column 6 is fixedly connected to the workbench of a drilling machine, a supporting column 9 is also fixedly connected to the template 5, one end of the limiting column 7 is hinged to the supporting column 9, and the other end of the limiting column 7 is threadedly connected to a limiting nut 10 and a locking nut 11 after passing through the seat hole 4, and a pressure plate 12 is clamped between the limiting nut 10 and the locking nut 11. In addition, the drill sleeve 8 is shaped with a larger upper end and a smaller lower end. When the drill sleeve 8 is embedded in the template 5, the upper end of the drill sleeve 8 should be flush with the top surface of the template 5, and the relative height between the lower end of the drill sleeve 8 and the bottom surface of the template 5 should be greater than 5 mm, so as to facilitate the discharge of iron chips during the drilling process.

[0022] In addition, a cushion block 13 is sandwiched between the pressure plate 12 and the shaft seat plate 3. There are multiple seat holes 4, and the number and arrangement positions of the cushion blocks 13 correspond to the seat holes 4 one by one. The shaft seat plate 3, the cushion block 13 and the pressure plate 12 are also fixed together by using connecting bolts 14 and connecting nuts. The seat holes 4 are evenly arranged in an array along the central axis of the rotating shaft 1. The limiting column 7 should pass through the seat hole 4 arranged in the middle position, and the two ends of the pressure plate 12 are also symmetrically arranged with the middle seat hole 4 as the symmetry center. The material of the cushion block 13 is preferably rubber. To prevent damage to the outer surface of the rotating shaft assembly.

[0023] In addition, the drilling fixture also includes a hinge bolt 15 and a hinge nut 16. The tail of the hinge bolt 15 is screwed to the hinge nut 16, and the limit column 7 and the support column 9 are clamped between the head of the hinge bolt 15 and the hinge nut 16. The nominal diameter of the hinge nut 16 is not less than M6. The nominal diameter of the limit nut 10 or the locking nut 11 is not less than M8. This ensures that the drilling fixture has sufficient structural strength and applies sufficient clamping force to the shaft assembly, laying a foundation for improving the drilling processing accuracy.

[0024] In addition, the locking nut 11 is preferably a butterfly nut, so as to facilitate the quick clamping of the rotating shaft assembly and improve the clamping efficiency. The number of drill sleeves 8 is 8. The number of top columns 6 is 4.

[0025] By adopting the technical solution of the present invention, the preset seat hole on the rotating shaft assembly is used as a positioning reference, and the rotating shaft assembly is clamped by components such as supporting columns, limiting columns, limiting nuts, locking nuts and pressure plates, thereby limiting the freedom of movement of the rotating shaft assembly in multiple directions, laying a foundation for improving the drilling processing accuracy. In addition, at least one end of the limiting column is connected to the supporting column by a hinged manner, which is convenient for rapid clamping and disassembly of the rotating shaft assembly, and the operation is very convenient, which shortens the production process and improves production efficiency.

Claims

1. A drilling fixture for a support hole of a rotating shaft assembly, characterized in that: The rotating shaft assembly comprises a rotating shaft (1), the left and right ends of the rotating shaft (1) are respectively provided with bearing supports (2), the outer circumferential surface of the rotating shaft (1) is provided with a shaft seat plate (3), the left and right sides of the shaft seat plate (3) are respectively provided with seat holes (4), the drilling fixture comprises a template (5), a top column (6) and a limiting column (7), the template (5) is embedded with a drill sleeve (8), one end of the top column (6) is fixedly connected to the template (5), the other end of the top column (6) is fixedly connected to the drilling machine workbench, the template (5) is also fixedly connected with a supporting column (9), one end of the limiting column (7) is hinged to the supporting column (9), and the limiting column (7) is The other end passes through the seat hole (4) and is screwed to the limit nut (10) and the locking nut (11). A pressure plate (12) is clamped between the limit nut (10) and the locking nut (11); a cushion block (13) is also clamped between the pressure plate (12) and the shaft seat plate (3). There are multiple seat holes (4), and the number and arrangement positions of the cushion blocks (13) correspond to the seat holes (4) one by one. The drilling fixture also includes a hinge bolt (15) and a hinge nut (16). The tail of the hinge bolt (15) is screwed to the hinge nut (16). The limit column (7) and the support column (9) are clamped between the head of the hinge bolt (15) and the hinge nut (16).

2. The drilling fixture for the support hole of the shaft assembly according to claim 1, characterized in that: The shaft seat plate (3), the cushion block (13) and the pressure plate (12) are also fixed together correspondingly by using connecting bolts (14) and connecting nuts.

3. The drilling fixture for the support hole of the shaft assembly according to claim 1, characterized in that: The material of the cushion block (13) is rubber.

4. The drilling fixture for the support hole of the shaft assembly according to claim 1, characterized in that: The nominal diameter of the hinge nut (16) is not less than M6.

5. The drilling fixture for the support hole of the shaft assembly according to claim 1, characterized in that: The nominal diameter of the limiting nut (10) or the locking nut (11) is not less than M8.

6. The drilling fixture for the support hole of the shaft assembly according to claim 1, characterized in that: The locking nut (11) is a butterfly nut.

7. The drilling fixture for the support hole of the shaft assembly according to claim 1, characterized in that: The number of the drill sleeves (8) is 8.

8. The drilling fixture for the support hole of the shaft assembly according to claim 1, characterized in that: The number of the top pillars (6) is 4.

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