A disc-shaped workpiece end face milling clamp

Abstract

The utility model provides a disc -shaped workpiece end face milling fixture, including base and a plurality of positioning device, the positioning device includes support and jacks, the surface of support is equipped with guide hole, the jacks are sleeved in guide hole, the one end of jacks is as the top head, the top head is abutted on the circumference of disc -shaped workpiece, the surface of base is equipped with guide groove, the support still is fixed link with the one end of slide column, the other end of slide column is sleeved in the guide groove. Adopt the utility model's technical scheme, and the positioning device can adjust along the length direction of guide groove, make the utility model can be applicable to the disc -shaped workpiece of different outer diameter and carry out clamping positioning, be favorable to expand the utility model's application scope, and only a set of special fixture can carry out clamping to a series of disc -shaped workpiece, be favorable to reduce the fixture design and manufacturing cost, lay the foundation for the enterprise to improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, and in particular relates to a milling fixture for the end face of a disc-shaped workpiece. Background Technology

[0002] With the continuous development of machining technology, people have higher and higher requirements for the shape and performance of mechanical parts. In order to keep the disc-shaped workpiece in a stable position during the cutting process, special fixtures are used to clamp the disc-shaped workpiece.

[0003] For example, patent document CN112338603A discloses an auxiliary machining fixture and its machining method for open thin-walled ring parts. The auxiliary machining fixture includes a base and a cover plate. The base has a flange, and the cover plate has a flange. The base and the cover plate are connected together by fasteners. The flange and the flange are opposite to each other, so that multiple open thin-walled ring parts can be stacked and clamped between the flange and the flange. The machining method includes using the auxiliary machining fixture as described above and clamping multiple blanks, cutting the blanks into closed ring parts by a machine tool; then cutting the closed ring parts radially to obtain multiple open thin-walled ring parts. By using this patented technical solution, the overall rigidity of the blanks is improved and the machining difficulty is reduced by using a special fixture to clamp and fix the blanks.

[0004] However, modern fixtures generally include a fixture body, a positioning device, and a clamping device. The positioning device and clamping device are usually fixed to the fixture body. When milling the end face of a series of disc-shaped workpieces, which have various specifications and models, each with a different outer diameter but the same shape, the end face of the disc-shaped workpiece is the surface to be machined, and only the outer circumference of the workpiece can be clamped. However, since the positioning device and clamping device are fixed to the fixture body, it is necessary to customize corresponding special fixtures for each specification and model of workpiece, which obviously greatly increases the design and manufacturing cost of fixtures and affects production efficiency. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a milling fixture for the end face of a disc-shaped workpiece.

[0006] This utility model is achieved through the following technical solution.

[0007] This utility model provides a milling fixture for the end face of a disc-shaped workpiece, including a base and multiple positioning devices. Each positioning device includes a support and a push rod. The surface of the support is provided with a guide hole, and the push rod is fitted into the guide hole. One end of the push rod serves as a push head, which abuts against the outer circumferential surface of the disc-shaped workpiece. The surface of the base is provided with a guide groove, and the support is also fixedly connected to one end of a sliding column. The other end of the sliding column is fitted into the guide groove.

[0008] The surface of the top head is either a flat plane or a spherical shape.

[0009] The base is cylindrical in shape, and the length direction of the guide groove is consistent with the radial direction of the base.

[0010] The guide groove is a dovetail-shaped groove with a groove opening width smaller than the groove bottom width.

[0011] The number of positioning devices is an even number of not less than four, and the multiple positioning devices are arranged at equal intervals along the outer circumference of the disc-shaped workpiece.

[0012] The support is also screwed to a locking pin, the end of which abuts against the surface of the top rod.

[0013] The surface of the top rod is also provided with a groove, and the end of the locking pin extends into the groove.

[0014] The angle between the guide hole and the base is greater than zero.

[0015] The support is also screwed to one end of the adjusting rod, and the other end of the adjusting rod is fixedly connected to the limiting platform. The surface of the top rod is also provided with a limiting groove, and the limiting platform is fitted into the limiting groove.

[0016] The adjusting rod is also fixedly connected to the knob, and the surface of the knob is knurled.

[0017] The beneficial effects of this utility model are as follows: by adopting the technical solution of this utility model, the positioning device can be adjusted along the length direction of the guide groove, so that this utility model can be applied to clamping and positioning disc-shaped workpieces with different outer diameters, which is conducive to expanding the application scope of this utility model. Only one set of special fixtures can clamp a series of disc-shaped workpieces, which is conducive to reducing the design and manufacturing cost of fixtures and laying the foundation for enterprises to improve production efficiency. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model;

[0019] Figure 2 This is the front view of the positioning device of this utility model.

[0020] In the diagram: 1-base, 2-positioning device, 3-support, 4-top rod, 5-top head, 6-workpiece, 7-guide groove, 8-sliding column, 9-locking pin, 11-adjusting rod, 12-limiting platform, 13-knob. Detailed Implementation

[0021] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0022] like Figures 1 to 2 As shown, this utility model provides a milling fixture for the end face of a disc-shaped workpiece, including a base 1 and multiple positioning devices 2. The positioning device 2 includes a support 3 and a push rod 4. The surface of the support 3 is provided with a guide hole, and the push rod 4 is fitted into the guide hole. One end of the push rod 4 is used as a push head 5, which abuts against the outer circumferential surface of the disc-shaped workpiece 6. The surface of the base 1 is provided with a guide groove 7. The support 3 is also fixedly connected to one end of a sliding column 8, and the other end of the sliding column 8 is fitted into the guide groove 7.

[0023] By adopting the technical solution of this utility model, the positioning device can be adjusted along the length of the guide groove, making this utility model applicable to clamping and positioning disc-shaped workpieces with different outer diameters. This helps to expand the scope of application of this utility model. Only one set of special fixtures is needed to clamp a series of disc-shaped workpieces, which helps to reduce the design and manufacturing costs of fixtures and lays the foundation for enterprises to improve production efficiency.

[0024] Specifically, the surface of the top 5 is a flat plane or a spherical shape. The base 1 is cylindrical, and the length direction of the guide groove 7 is consistent with the radial direction of the base 1. The guide groove 7 is a dovetail groove with a groove opening width smaller than the groove bottom width. The number of positioning devices 2 is an even number of not less than 4, and the multiple positioning devices 2 are arranged at equal intervals along the outer circumference of the disc-shaped workpiece 6.

[0025] In addition, the support 3 is screwed to the locking pin 9, the end of which abuts against the surface of the push rod 4. The surface of the push rod 4 is also provided with a groove, and the end of the locking pin 9 extends into the groove. The angle between the guide hole and the base 1 is greater than zero.

[0026] Furthermore, the support 3 is screwed to one end of the adjusting rod 11, and the other end of the adjusting rod 11 is fixedly connected to the limiting platform 12. The surface of the top rod 4 is also provided with a limiting groove, and the limiting platform 12 fits into the limiting groove. The adjusting rod 11 and the limiting platform 12 are integrally manufactured. The adjusting rod 11 is also fixedly connected to the knob 13, and the surface of the knob 13 is knurled. The adjusting rod 11 and the knob 13 are integrally manufactured. Using the technical solution of this utility model, when an external torque is applied to the adjusting rod 11 to make it rotate, the relative position between the top rod 4 and the guide hole can be adjusted, thereby adjusting the positioning position or clamping position of the disc-shaped workpiece.

Claims

1. A milling fixture for the end face of a disc-shaped workpiece, characterized in that: The device includes a base (1) and multiple positioning devices (2). The positioning device (2) includes a support (3) and a push rod (4). The surface of the support (3) is provided with a guide hole. The push rod (4) is fitted into the guide hole. One end of the push rod (4) is used as a push head (5). The push head (5) abuts against the outer circumferential surface of the disc-shaped workpiece (6). The surface of the base (1) is provided with a guide groove (7). The support (3) is also fixedly connected to one end of a sliding column (8). The other end of the sliding column (8) is fitted into the guide groove (7).

2. The milling fixture for the end face of a disc-shaped workpiece as described in claim 1, characterized in that: The surface of the top head (5) is a flat plane or a spherical shape.

3. The milling fixture for the end face of a disc-shaped workpiece as described in claim 1, characterized in that: The base (1) is cylindrical in shape, and the length direction of the guide groove (7) is consistent with the radial direction of the base (1).

4. The milling fixture for the end face of a disc-shaped workpiece as described in claim 1 or 3, characterized in that: The guide groove (7) is a dovetail groove with a groove opening width smaller than the groove bottom width.

5. The milling fixture for the end face of a disc-shaped workpiece as described in claim 1, characterized in that: The number of the positioning devices (2) is an even number of not less than 4, and the multiple positioning devices (2) are arranged at equal intervals along the outer periphery of the disc-shaped workpiece (6).

6. The milling fixture for the end face of a disc-shaped workpiece as described in claim 1, characterized in that: The support (3) is also screwed to a locking pin (9), the end of which abuts against the surface of the top rod (4).

7. The milling fixture for the end face of a disc-shaped workpiece as described in claim 6, characterized in that: The surface of the top rod (4) is also provided with a groove, and the end of the locking pin (9) extends into the groove.

8. The milling fixture for the end face of a disc-shaped workpiece as described in claim 1, characterized in that: The angle between the guide hole and the base (1) is greater than zero.

9. The milling fixture for the end face of a disc-shaped workpiece as described in claim 1, characterized in that: The support (3) is also screwed to one end of the adjusting rod (11), and the other end of the adjusting rod (11) is fixedly connected to the limiting platform (12). The surface of the top rod (4) is also provided with a limiting groove, and the limiting platform (12) is fitted into the limiting groove.

10. The milling fixture for the end face of a disc-shaped workpiece as described in claim 9, characterized in that: The adjusting rod (11) is also fixedly connected to the knob (13), and the surface of the knob (13) is knurled.

Images