Machining jig for high-precision eccentric tile type part

Abstract

The utility model provides a machining jig for a high-precision eccentric tile type part, which can be used for conveniently carrying out cylindrical grinding after the eccentric tile type part is clamped and fixed, so that the working efficiency and the working quality are improved. The device sequentially comprises a cover plate, a middle shaft and a base from top to bottom, the lower end of the middle shaft is inserted into the center of the base, the middle shaft is sleeved with a positioning sleeve, evenly-distributed partition pieces are arranged in the radial direction of the exterior of the positioning sleeve, a positioning ring is further arranged outside the positioning sleeve, and the lower ends of the partition pieces are bent outwards to be connected with the positioning ring. The cover plate sleeves the upper end of the middle shaft, and a flange is arranged on the outer edge of the lower end of the cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a processing fixture for high-precision eccentric tile-type parts. Background Art

[0002] like Figure 1 , 2 As shown in the figure, it is a high-precision eccentric tile-type part, whose inner and outer arcs have eccentricity, and the distance tolerance of the inner and outer arc approach points is ±0.003mm. The traditional processing method of this part is to use slow wire cutting to process its contour. However, this method is very costly and difficult to process. Since the part is in a tile shape, the deformation of the wire cutting can easily lead to the scrapping of the part due to out-of-tolerance. Therefore, the processing method is changed and the part is finely processed by external cylindrical grinding. This method not only has higher processing efficiency, but also lower cost, and the processing quality can fully meet the processing of the part. Therefore, it is necessary to design a clamping fixture to cooperate with the external cylindrical grinding processing method. Utility Model Content

[0003] In view of the problem that traditional slow-wire cutting processing of eccentric tile-type parts is difficult and costly, and easily leads to the scrapping of parts due to out-of-tolerance, the utility model provides a high-precision processing fixture for eccentric tile-type parts, which can clamp and fix the eccentric tile-type parts to facilitate external cylindrical grinding, thereby improving work efficiency and quality.

[0004] The technical solution is as follows: a processing jig for high-precision eccentric tile-type parts, characterized in that it includes a cover plate, a central axis, and a base from top to bottom, the lower end of the central axis is inserted in the center of the base, a positioning sleeve is sleeved on the outside of the central axis, and a separator is evenly distributed along the radial direction of the outside of the positioning sleeve. A positioning ring is also provided on the outside of the positioning sleeve, and the lower end of the separator is bent outward and connected to the positioning ring. The cover plate is sleeved on the upper end of the central axis, and a flange is provided at the outer edge of its lower end.

[0005] The further feature is that: the separator separates the positioning sleeve into five sector-shaped areas, the sector-shaped areas match the shape of the eccentric tile-shaped parts, and each sector-shaped area corresponds to one eccentric tile-shaped part;

[0006] The surface of the base is provided with sector-shaped positioning blocks along the circumferential direction, and the sector-shaped positioning blocks match the bottom of the sector-shaped area;

[0007] A threaded positioning bolt is provided through the base, and the positioning bolt extends upward and is threadedly connected to the eccentric tile-type part;

[0008] The base and the cover plate are respectively threadedly connected with the positioning sleeve through bolts.

[0009] After adopting the above structure, the processed semi-finished product, the eccentric tile-type part, is placed between the dividing pieces of the positioning sleeve in the circumferential direction. The eccentric tile-type part is then clamped and positioned by the cover plate and the base to complete the clamping of multiple eccentric tile-type parts. This makes it convenient for external grinding equipment to grind the outer circle of each eccentric tile-type part, effectively improving the processing quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the eccentric tile type parts;

[0011] Figure 2 It is the cross-sectional view of the eccentric tile-type part;

[0012] Figure 3 It is a schematic diagram of the overall structure and eccentric tile-type parts of the utility model;

[0013] Figure 4 For this utility model Figure 3 A cross-sectional view of

[0014] Figure 5 This is a schematic diagram of the base of the utility model;

[0015] Figure 6 This is a schematic diagram of the cover plate of the utility model;

[0016] Figure 7 It is a schematic diagram of the central axis of the utility model. DETAILED DESCRIPTION

[0017] like Figures 3 to 7 As shown, a processing jig for high-precision eccentric tile-type parts includes a cover plate 1, a central axis 2, and a base 3 from top to bottom. The lower end of the central axis 2 is inserted in the center position of the base 3. A fixedly connected positioning sleeve 4 is sleeved on the outside of the central axis 2. The central axis 2 and the positioning sleeve 4 can also be an integrally formed structure. Evenly distributed separators 5 are provided along the radial direction of the outside of the positioning sleeve 4. A positioning ring 6 is also provided on the outside of the positioning sleeve 4. The lower end of the separator 5 is bent outward and fixedly connected to the positioning ring 6. The positioning sleeve 4 is divided into five sector-shaped areas by the separator 5. The sector-shaped areas match the shape of the eccentric tile-type parts 7. An eccentric tile-type part 7 is placed in each sector-shaped area. The cover plate 1 is sleeved on the upper end of the central axis 2, and a flange 11 is provided at the outer edge of its lower end. The surface of the base 3 is divided into sector-shaped positioning blocks 31 along the circumferential direction. The sector-shaped positioning blocks 31 match the bottom size of the sector-shaped areas.

[0018] A threaded positioning bolt 9 is provided through the base 1. The positioning bolt 9 extends upward and is threadedly connected to the eccentric tile-type part 7. The base 3 and the cover plate 1 are threadedly connected to the positioning sleeve 4 through bolts 8, respectively, for easy assembly.

[0019] The working principle of the utility model is as follows:

[0020] The base 3 is connected to the bottom of the positioning sleeve 4 outside the central axis 2 by bolts 8, and after the five eccentric tile-like parts 7 are installed along the fan-shaped area, the cover plate 1 is buckled and then connected to the top of the positioning sleeve 4 by bolts 8. The cover plate 1 and the base 3 are used to increase the height positioning and position clamping force of the eccentric tile-like part 7. The flange 11 arranged on the outer periphery of the cover plate 1 makes the inner arc of the eccentric tile-like part 7 close to the positioning sleeve 4, providing the circumferential clamping force to the eccentric tile-like part 7, thereby completing the clamping of the five eccentric tile-like parts. At this time, the outer cylindrical grinding method can be used to fine-tune the outer peripheral arc of the eccentric tile-like part, which can ensure that it will not be deformed, and greatly improve the processing efficiency and reduce the cost.

[0021] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by anyone familiar with the technology within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high-precision eccentric tile-type parts processing jig, characterized in that: It includes a cover plate, a central axis, and a base from top to bottom. The lower end of the central axis is inserted in the center of the base. A positioning sleeve is sleeved on the outside of the central axis. A separator is evenly distributed along the radial direction of the outside of the positioning sleeve. A positioning ring is also provided on the outside of the positioning sleeve. The lower end of the separator is bent outward and connected to the positioning ring. The cover plate is sleeved on the upper end of the central axis, and a flange is provided at the outer edge of its lower end.

2. A high-precision eccentric shoe-type part processing jig according to claim 1, characterized in that: The separator separates the positioning sleeve into five sector-shaped areas, and the sector-shaped areas match the appearance of the eccentric shoe-shaped parts. One eccentric shoe-shaped part is placed in each sector-shaped area.

3. A high-precision eccentric shoe-type part processing jig according to claim 2, characterized in that: The surface of the base is provided with sector-shaped positioning blocks along the circumferential direction, and the sector-shaped positioning blocks match the bottom of the sector-shaped area.

4. A high-precision eccentric shoe-type part processing jig according to claim 3, characterized in that: A threaded positioning bolt is provided through the base, and the positioning bolt extends upward and is threadedly connected to the eccentric tile-type part.

5. A high-precision eccentric shoe-type part processing jig according to claim 4, characterized in that: The base and the cover plate are respectively threadedly connected with the positioning sleeve through bolts.

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