Positioning tool for machining action plate of turnout conversion device for high-speed railway

Abstract

The utility model relates to a kind of action plate processing positioning tool in high-speed rail turnout conversion device, it includes detachably installed on the tool seat body of processing machine tool workstation, the tool seat body is equipped with and action plate length-width size completely corresponding sunken groove, left and right corners of sunken groove lower side are set as round angle, left and right corners of sunken groove upper side are set as semicircular relief groove that arches out upwards and outward;Sunken recess is passed through in the sunken groove horizontal plane and the vertical wall surface of tool seat body and is equipped with sunken recess in the central lower side of sunken groove;2-3 fixed through holes are equipped with in the horizontal direction in the sunken recess upper side front side;2-3 positioning bolts that can be fixed together with work seat body and action plate are equipped with corresponding threaded through hole, corresponding threaded hole is equipped with in action plate corresponding fixed threaded through hole.The utility model can greatly improve processing efficiency, and can guarantee processing accuracy and other process requirements.

Description

Technical Field

[0001] This utility model relates to a machining and positioning fixture for the action plate in a turnout switching device for high-speed railways. Background Technology

[0002] my country's high-speed rail locomotives and related technologies are at the world's leading level, and almost all components are domestically produced. Many of these components have unique structural features involving trade secrets that need protection. Therefore, in actual manufacturing, many components require different manufacturers to complete the processing of different parts and structural features of a single workpiece.

[0003] The key rails of ordinary railway turnouts are fixed, while those of high-speed railway turnouts are movable. The key rails are moved by a switch (turnout switching device), allowing trains to smoothly pass through the crossing area. This design eliminates the "harmful space" where wheels might get stuck, ensuring stability during high-speed operation. The operating plate is a component of the high-speed railway switch (turnout switching device), with a unique structure, and is considered a non-standard part. To ensure machining accuracy, work efficiency, reduce machining difficulty, and increase output when performing milling and other machining processes on the operating plate, specialized positioning fixtures (clamps) are required. Utility Model Content

[0004] The technical objective of this utility model is to provide a machining and positioning fixture for the action plate in a high-speed railway turnout switching device, which can greatly improve machining efficiency and ensure machining accuracy and other process requirements.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows: A machining and positioning fixture for the action plate in a high-speed railway turnout switching device includes a fixture base detachably mounted on a machine tool worktable. The fixture base has a recessed groove corresponding to the length and width dimensions of the action plate. The lower left and right top corners of the recessed groove are rounded, and the upper left and right top corners of the recessed groove are semi-circular tool retraction grooves that arch upwards and outwards. The tool retraction grooves provide space for tool retraction, prevent the tool from colliding with the workpiece step, and ensure smooth machining. At the same time, the tool retraction grooves can eliminate the influence of material springback at the cutting end on dimensional accuracy and ensure machining quality. A through recessed platform is provided at the lower center of the recessed groove where it connects with the vertical wall of the fixture base. Two to three fixing through holes are evenly arranged along a horizontal line on the bottom surface of the recessed groove above the front side of the fixing platform. Two to three positioning bolts are provided for the corresponding fixing through holes, and corresponding threaded holes are provided on the action plate for the corresponding fixing through holes.

[0006] The operation process of the above-mentioned positioning fixture of this utility model is as follows: First, the fixture base is installed and fixed on the worktable of the machining tool; then, the side of the action plate to be processed with the protruding part is facing down, the protrusion is aligned with the sinking groove on the fixture base, and then the entire action plate is placed in the sinking groove. Finally, the fixture base and the action plate are fixed together with positioning bolts, and then subsequent processing operations can be carried out.

[0007] The beneficial effects of this utility model are as follows: Due to the unique structural shape of the actuating plate in the high-speed rail turnout switching device, ordinary tooling is not very suitable. This utility model's specialized tooling can efficiently and conveniently fix the actuating plate into place quickly and easily, and facilitate rapid milling of the plate's outline and special structures. It ensures correct workpiece positioning during processing, guaranteeing machining accuracy. Especially for the wheel-mounted hanger corresponding to this fixture, whose outline is complex and unique, this tooling allows for precise and rapid milling of the outline, significantly improving work efficiency. Furthermore, using this utility model's tooling can greatly increase processing capacity and shorten processing time, ensuring the timely and high-quality completion of customer orders while meeting various standards and requirements such as machining accuracy. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the assembly of the processing positioning fixture and the corresponding action plate described in the embodiment of this utility model.

[0009] Figure 2 This is a schematic diagram of the processing and positioning fixture described in an embodiment of the present utility model.

[0010] In the figure: 1 tooling base, 11 recessed groove, 12 semi-circular tool relief groove, 13 recessed platform, 14 fixed through hole, 2 action plate, 21 threaded hole, 3 positioning bolt. Detailed Implementation

[0011] As attached Figure 1 , 2The image shows a machining and positioning fixture for the action plate of a high-speed railway turnout switching device according to this utility model. It includes a fixture base 1 detachably mounted on the worktable of a machining tool. The fixture base 1 has a recessed groove 11 that perfectly corresponds to the length and width dimensions of the action plate 2. The lower left and right corners of the recessed groove 11 are rounded. The upper left and right corners of the recessed groove 11 are provided with upwardly and outwardly arched semi-circular tool retraction grooves 12. The tool retraction grooves 12 provide space for tool retraction, preventing the tool from colliding with the workpiece step and ensuring smooth machining. Simultaneously, the tool retraction grooves can eliminate the influence of material springback at the cutting end on dimensional accuracy, ensuring machining quality. A through recessed platform 13 is provided at the lower center of the recessed groove 11 and at the vertical wall of the tooling base 1; 2-3 fixing through holes 14 are provided on the bottom surface of the recessed groove 1 above the front side of the recessed platform 13, evenly arranged along the horizontal line; 2-3 positioning bolts 3 are provided for fixing the working base 1 and the action plate 2 together, corresponding to the fixing through holes 14; and corresponding threaded holes 21 are provided on the action plate 2 for the fixing through holes 14.

[0012] The operation process of the above-mentioned positioning fixture of this utility model is as follows: First, the fixture base is installed and fixed on the worktable of the machining tool; then, the side of the action plate to be processed with the protruding part is facing down, the protrusion is aligned with the through groove on the fixture base, and the entire action plate is placed in the recessed groove, and the four sides are aligned and locked; finally, the fixture base and the action plate are fixed together with positioning bolts, and then subsequent processing operations can be carried out.

Claims

1. A high-speed rail switch conversion device action plate processing positioning tool, characterized by: The positioning fixture includes a fixture base that can be detachably installed on the worktable of a machining tool. The fixture base has a recessed groove that corresponds to the length and width of the outer contour of the action plate. The lower left and right top corners of the recessed groove are rounded, and the upper left and right top corners of the recessed groove are semi-circular relief grooves that arch upward and outward. A through recessed platform is provided at the connection between the lower center of the recessed groove and the vertical wall of the fixture base. 2-3 fixing through holes are provided on the bottom surface of the recessed groove above the front side of the recessed platform, evenly arranged along the horizontal line. 2-3 positioning bolts are provided for the corresponding fixing through holes, and corresponding threaded holes are provided on the action plate for the corresponding fixing through holes.

Images