Special fixture for turning threads on wedge-shaped workpiece for high-speed rail

Abstract

The utility model relates to a special fixture for turning threads of a wedge-shaped workpiece for a high-speed rail, which comprises a fixture seat body detachably mounted on a working table of a processing machine tool, the fixture seat body is in the shape of a cylindrical plate, and a horizontal support plate perpendicular to the front of the fixture seat body is fixed on the lower portion of the front of the fixture seat body. A limiting plate which is perpendicular to the clamp base body and the supporting plate at the same time and located in the center is arranged on the supporting plate, a positioning threaded hole is formed in the front of the limiting plate and right faces the limiting plate, a positioning pressing plate is arranged corresponding to the positioning threaded hole, a strip-shaped positioning groove hole is formed in the center of the positioning pressing plate, and a positioning bolt is arranged in the strip-shaped positioning groove hole in a matched mode. When the positioning fixture is used, a workpiece to be machined, namely a wedge-shaped workpiece for the high-speed rail, can be positioned and fixed on the positioning fixture seat body through the positioning threaded hole by penetrating a positioning bolt through the positioning slotted hole in the positioning and pressing plate. According to the utility model, the processing efficiency can be greatly improved, and the processing precision and other process requirements can be ensured.

Description

Technical Field

[0001] The utility model relates to a special clamp for threading a wedge-shaped workpiece used in high-speed railways. Background Art

[0002] At present, all parts of my country's high-speed rail locomotives have basically been domestically produced. Many of its parts have proprietary or unique structural designs, involving technical secrets that need to be protected. Therefore, in actual processing, many of its parts need to go through different manufacturers to complete the processing of different parts and structures of a workpiece.

[0003] High-speed rail wedge workpieces are parts used in high-speed rail locomotives and are non-standard parts with unique structures. When processing them, special positioning fixtures are required to ensure processing accuracy, work efficiency, and increase workload. Utility Model Content

[0004] The technical purpose of the utility model is to provide a special clamp for threading wedge-shaped workpieces for high-speed railways, which can greatly improve the processing efficiency and ensure the process requirements such as processing accuracy.

[0005] In order to achieve the above technical purpose of the utility model, the technical solution adopted is:

[0006] A special fixture for threading wedge-shaped workpieces for high-speed railways comprises a fixture base body detachably mounted on a workbench of a processing machine tool, the fixture base body being in the shape of a cylindrical plate, a support plate which is perpendicular and horizontal to the front of the fixture base body is fixed to the lower front part of the fixture base body, a limit plate which is perpendicular to both the fixture base body and the support plate and is located in the middle position is provided on the support plate, a positioning threaded hole is provided in front of the limit plate and opposite to the limit plate, a positioning clamping plate is provided corresponding to the positioning threaded hole, a strip-shaped positioning slot is provided in the center of the positioning clamping plate, and a positioning bolt is provided. When in use, the positioning bolt can be passed through the positioning slot on the positioning clamping plate to position and fix the workpiece to be processed, that is, the wedge-shaped workpiece for high-speed railways, on the positioning fixture base body through the positioning threaded hole using the positioning clamping plate.

[0007] The operation process of the positioning fixture of the utility model when used is: first, the above-mentioned fixture seat body is installed and fixed on the workbench of the processing machine tool, and the fixture seat can be installed on almost all kinds of processing machine tools; then the bottom surface of the wedge-shaped body to be processed is placed on the support plate, and its two wedge-shaped arm-like structures are passed through the limit plate, and then one side of the positioning clamping plate is pressed against the limit plate and the wedge-shaped body is fixed on the fixture seat by the positioning bolts.

[0008] The beneficial effects of the utility model are:

[0009] The wedge-shaped workpiece for high-speed rail needs to be processed in multiple structures on different machine tools due to the special appearance and structure of the workpiece. The utility model can complete the threading of the protruding cylinder at the front end of the wedge-shaped body, and can also fix the wedge-shaped body on other machine tools through the positioning fixture to complete the special wedge-shaped slope milling of the two arm-shaped structures. Moreover, the structural setting of this fixture will not hinder the threading of the two arm-shaped structures and the front cylindrical protrusions. This fixture can be used to complete the clamping and positioning requirements of the wedge-shaped workpiece to complete multiple processes on different machine tools. The design of this fixture is both versatile on different machine tools and can meet the requirements of workpiece processing without hindering various machine tools from processing multiple special parts and structures of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of the positioning fixture and the corresponding wedge-shaped workpiece of the utility model when they are not assembled and are separate.

[0011] Figure 2 It is a structural schematic diagram of the positioning fixture of the utility model and the corresponding wedge-shaped workpiece when they are assembled into a combined body.

[0012] In the figure: 1 fixture seat, 2 support plate, 3 limit plate, 4 positioning clamping plate, 6 strip-shaped positioning slot holes, 6 wedge-shaped body. DETAILED DESCRIPTION

[0013] As attached Figure 1 , 2 The figure shows an embodiment of a special fixture for threading wedge-shaped workpieces for high-speed railways, which includes a fixture base 1 that can be detachably mounted on a workbench of a processing machine tool, and the fixture base 1 is in the shape of a cylindrical plate. A support plate 2 that is perpendicular to and horizontal to the front of the fixture base 1 is fixed to the lower front part of the fixture base 1. A limit plate 3 that is perpendicular to both the fixture base 1 and the support plate 2 and is located in the middle is provided on the support plate 2. A positioning threaded hole is provided in front of the limit plate 3 and directly opposite to the limit plate 3. A positioning clamping plate 4 is provided corresponding to the positioning threaded hole. A strip-shaped positioning slot 5 is provided in the center of the positioning clamping plate 4, and a positioning bolt is provided. When in use, the positioning bolt can be passed through the positioning slot 5 on the positioning clamping plate 4 to position and fix the workpiece to be processed, that is, the wedge-shaped workpiece 6 for high-speed railways, on the positioning fixture base 1 through the positioning threaded hole 4 using the positioning clamping plate 4.

Claims

1. A special fixture for threading wedge-shaped workpieces for high-speed railways, characterized in that: The clamp includes a clamp seat body that can be detachably mounted on a workbench of a processing machine tool, the clamp seat body being in the shape of a cylindrical plate, a support plate that is perpendicular and horizontal to the front of the clamp seat body is fixed to the lower front part of the clamp seat body, a limit plate that is perpendicular to both the clamp seat body and the support plate and is located in the middle position is provided on the support plate, a positioning threaded hole is provided in front of the limit plate and opposite to the limit plate, a positioning clamping plate is provided corresponding to the positioning threaded hole, a strip-shaped positioning slot is provided in the center of the positioning clamping plate, and a positioning bolt is provided. When in use, the positioning bolt can be passed through the positioning slot on the positioning clamping plate to use the positioning clamping plate to position and fix the workpiece to be processed, that is, the wedge-shaped workpiece for high-speed rail, on the positioning clamp seat through the positioning threaded hole.

Images