Device for machining eccentric bushing of rolling mill

Abstract

The utility model discloses a device for processing a rolling mill eccentric bushing, which comprises a chuck and an eccentric clamp, a mounting hole is arranged on the eccentric clamp, the chuck clamps the eccentric clamp through a claw, the inner diameter of the mounting hole is equal to the outer diameter of the eccentric bushing, the central axis of the mounting hole is parallel to the central axis of the chuck, and the eccentric clamp is arranged on the chuck. The distance between the two is the eccentricity of the eccentric sleeve; when the eccentric bushing is machined, one-time clamping machining is achieved, alignment eccentricity is not needed, and the production efficiency can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a device for processing an eccentric sleeve of a rolling mill. Background Art

[0002] An eccentric sleeve used in rod and wire rolling mills. It is made of nylon and automatically adjusts the eccentricity error of the screw rod during the rolling process. It is a vulnerable part and has a large demand for spare parts. Currently, four-jaw chucks are mostly used to process eccentric sleeves, such as Figure 1 As shown, each time processing is performed, the eccentricity of the eccentric sleeve 2 must be aligned with the rotation center of the lathe using a four-jaw chuck 11. However, it takes a lot of man-hours to find the eccentricity of the eccentric sleeve, and the processing efficiency is low, especially in mass production. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model proposes a device for processing an eccentric sleeve of a rolling mill. When processing the eccentric sleeve, the device can be clamped and processed at one time without aligning the eccentricity, which can significantly improve the production efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model proposes a device for processing an eccentric sleeve of a rolling mill, comprising a chuck and an eccentric clamp, wherein the eccentric clamp is provided with a mounting hole, the chuck clamps the eccentric clamp by means of a clamping claw, the inner diameter of the mounting hole is equal to the outer diameter of the eccentric sleeve, the central axis of the mounting hole is parallel to the central axis of the chuck, and the distance between the two is the eccentricity of the eccentric sleeve.

[0006] Furthermore, the eccentric clamp is in the shape of a circular column, and the central axis of the outer circle of the eccentric clamp coincides with the central axis of the chuck.

[0007] Furthermore, a slit is formed on the side wall of the eccentric clamp along its axial direction.

[0008] Furthermore, the slit is located at the thinnest position of the side wall of the eccentric clamp.

[0009] Furthermore, the width of the slit is 0.1-0.5 mm.

[0010] Furthermore, the chuck is a three-jaw self-centering chuck.

[0011] Furthermore, the chuck is a four-jaw adjustable center chuck.

[0012] Furthermore, the eccentric clamp is a steel eccentric clamp.

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

[0014] The utility model fixes the outer circle center and the eccentricity of the eccentric sleeve by the eccentric clamp. When processing the eccentric sleeve, it is only necessary to insert the eccentric sleeve workpiece to be processed into the mounting hole of the eccentric clamp, clamp the eccentric clamp by the three-jaw self-centering chuck, and tightly wrap the eccentric sleeve workpiece to be processed, so that the eccentric sleeve workpiece can be processed, and there is no need to find the eccentricity of the eccentric sleeve workpiece one by one, and the processing efficiency can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the eccentric sleeve processing process in the background technology;

[0017] Figure 2 It is a structural schematic diagram of the device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model device during the process of machining an eccentric sleeve;

[0019] Figure 4 It is a structural schematic diagram of the slit of the utility model;

[0020] Figure numerals: 11, four-jaw chuck, 21, chuck, 211, jaws, 2, eccentric sleeve, 3, eccentric clamp, 4, slit. DETAILED DESCRIPTION

[0021] The implementation scheme of the utility model will be described in detail below with reference to examples, but those skilled in the art will understand that the following examples are only used to illustrate the utility model and should not be regarded as limiting the scope of the utility model.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] The following description sets forth specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] refer to Figure 2 and Figure 3This embodiment proposes a device for processing an eccentric sleeve of a rolling mill, including a chuck 21 and an eccentric clamp 3. The chuck 21 is installed at one end of a lathe. The eccentric clamp 3 is provided with a mounting hole. The chuck 21 clamps the eccentric clamp 3 through a claw 211. The inner diameter of the mounting hole is equal to the outer diameter of the eccentric sleeve 2. The central axis of the mounting hole is parallel to the central axis of the chuck 21, and the distance between the two is the eccentricity e of the eccentric sleeve 2.

[0025] When processing the eccentric sleeve 2 in the above embodiment, since the inner diameter of the mounting hole is equal to the outer diameter of the eccentric sleeve 2, the eccentric sleeve workpiece can fit tightly with the mounting hole. After the eccentric sleeve workpiece is inserted into the mounting hole, since the central axis of the mounting hole is parallel to the central axis of the chuck 21, and the distance between the two is the eccentricity e of the eccentric sleeve 2, the center O1 of the mounting hole coincides with the center of the outer circle of the eccentric sleeve 2, and the center O of the chuck coincides with the eccentricity on the eccentric sleeve 2. It is only necessary to clamp the eccentric fixture 3 with the chuck 21. After centering, the eccentric sleeve workpiece can be directly processed by inserting it into the mounting hole. There is no need to find the eccentricity of the eccentric sleeve 2 workpiece one by one, which can significantly improve the processing efficiency.

[0026] refer to Figure 4 In the above embodiments, the side wall of the eccentric clamp 3 is also provided with a slit 4 along its axial direction. In this embodiment, the width of the slit 4 is preferably 0.1-0.5 mm, and it is opened at the thinnest part of the side wall of the eccentric clamp 3. When processing the eccentric sleeve 2, the strength of the claw 211 of the chuck 21 can be adjusted to close the slit 4, increase the tightening force of the mounting hole on the eccentric sleeve workpiece, and ensure the stability of the eccentric sleeve workpiece during the processing. The slit 4 width is selected to be 0.1-0.5 mm, which can play a tightening role without affecting the processing accuracy of the eccentric sleeve. The slit 4 is opened at the thinnest part of the side wall of the eccentric clamp 3 to prevent stress concentration from damaging the eccentric clamp 3.

[0027] In the above embodiments, the eccentric clamp 3 is preferably in the shape of an annular column, which is easy to center. After centering, the central axis of the outer circle of the eccentric clamp 3 coincides with the central axis of the chuck 21, that is, the center of the outer circle of the eccentric clamp 3, the center O of the chuck 21 and the eccentricity of the eccentric sleeve 2 coincide.

[0028] In the above embodiments, the chuck 21 is a self-centering chuck that can be quickly centered. In this embodiment, it is preferably a three-jaw self-centering chuck.

[0029] In the above embodiments, the eccentric clamp 3 is preferably a steel eccentric clamp, which has high strength and can further ensure the stability of the eccentric sleeve workpiece during the processing.

[0030] Although the utility model has been described in detail in this specification with general descriptions and specific implementation schemes, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model based on the utility model. Therefore, these modifications or improvements made without departing from the utility model are within the scope of protection claimed by the utility model.

Claims

1. A device for processing an eccentric sleeve of a rolling mill, characterized in that: The invention comprises a chuck (21) and an eccentric clamp (3), wherein the eccentric clamp (3) is provided with a mounting hole, the chuck (21) clamps the eccentric clamp (3) via a clamping claw (211), the inner diameter of the mounting hole is equal to the outer diameter of the eccentric sleeve (2), the central axis of the mounting hole is parallel to the central axis of the chuck (21), and the distance between the two is the eccentricity of the eccentric sleeve (2).

2. The device for processing the eccentric sleeve of a rolling mill according to claim 1, characterized in that: The eccentric clamp (3) is in the shape of a circular column, and the central axis of the outer circle of the eccentric clamp (3) coincides with the central axis of the chuck (21).

3. The device for machining the eccentric sleeve of a rolling mill according to claim 2, characterized in that: The side wall of the eccentric clamp (3) is provided with a slit (4) along its axial direction.

4. The device for machining the eccentric sleeve of a rolling mill according to claim 3, characterized in that: The slit (4) is located at the thinnest position of the side wall of the eccentric clamp (3).

5. The device for machining the eccentric sleeve of a rolling mill according to claim 3, characterized in that: The width of the slit (4) is 0.1-0.5 mm.

6. The device for processing the eccentric sleeve of a rolling mill according to claim 1, characterized in that: The chuck (21) is a three-jaw self-centering chuck.

7. The device for machining the eccentric sleeve of a rolling mill according to claim 1, characterized in that: The chuck (21) is a four-jaw adjustable center chuck.

8. The device for machining the eccentric sleeve of a rolling mill according to claim 1, characterized in that: The eccentric clamp (3) is a steel eccentric clamp.

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