Alloy steel short rail machining and positioning device for alloy steel frog

Abstract

The utility model discloses an alloy steel short rail processing and positioning device for an alloy steel frog, which relates to the technical field of short rail processing and comprises a base plate and a cushion table arranged on the base plate, a positioning component is arranged on the cushion table, and two sides of a short rail can be limited by trapezoidal grooves arranged on limiting seats. The width of the trapezoidal groove is gradually reduced from top to bottom, side edge limiting can be formed for short rails with different widths, a V-shaped surface with smaller spacing can be formed by rotating the bidirectional screw rod to drive the trapezoidal blocks to be close to each other, limiting can be formed for the side edges of the short rails with smaller widths, and the machining precision is improved. When the end clamp cannot extrude the end face of the top of the short rail, a worker can rotate the one-way lead screw to drive the pressing block to extrude the compensation block downwards, so that the compensation block protrudes out of the bottom of the end clamp, the distance difference between the compensation block and the short rail is further compensated, the device flexibility is high, the structure is simple, and the short rails of multiple specifications can be stably positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of short rail processing, in particular to a positioning device for processing and positioning alloy steel short rails for alloy steel frog switches. Background Technique

[0002] A frog switch is an important component in railway track equipment. Its main function is to guide the train wheelset to smoothly transition from one track to another without derailment or damage. When connecting the frog switch with other track components, the transition between the two is often achieved through a short rail. A short rail usually refers to a track section with a length less than that of a standard railway track. When processing a short rail, a positioning device is often required to fix and limit the short rail to ensure its stability during the processing work.

[0003] When most of the existing positioning devices for processing alloy steel short rails are in use, they often rely on clamping plates and cushion tables to position and fix the upper and lower end faces of the short rail. Although this method is relatively convenient, the high-frequency vibrations generated during the processing process are likely to cause the horizontal end face of the short rail to shift, resulting in deviation of the processing points and failure of the processing operation, causing certain inconvenience to the processing work of the short rail. Content of the Utility Model

[0004] The purpose of the utility model is to provide a positioning device for processing and positioning alloy steel short rails for alloy steel frog switches to solve the technical problems mentioned in the above background technique.

[0005] The technical problems to be solved by the utility model can be achieved through the following technical solutions:

[0006] A positioning device for processing and positioning alloy steel short rails for alloy steel frog switches includes a base plate and a cushion table arranged on the base plate;

[0007] A positioning component is arranged on the cushion table. The positioning component includes a U-shaped seat slidably arranged on the end face of the cushion table, a limit seat arranged on the bottom wall of the U-shaped seat, a trapezoidal groove opened on the top of the limit seat, an inner cavity opened on the bottom wall of the trapezoidal groove, a bidirectional lead screw rotatably arranged inside the inner cavity, two groups of symmetrically distributed trapezoidal blocks sleeved on the outer side of the bidirectional lead screw, a pressure screw slidably arranged on the top of the U-shaped seat, and an end clamp arranged at the bottom end of the pressure screw.

[0008] As a further scheme of the utility model: The shape of the trapezoidal block is an isosceles trapezoid, and the inclined surface of the trapezoidal block is flush with the inclined surface of the trapezoidal groove in the initial position.

[0009] As a further solution of the utility model: a T-shaped sliding groove for limiting the C-shaped seat is formed on the end face of the cushion table, a threaded shaft is rotatably arranged inside the T-shaped sliding groove, a T-shaped sliding block matched with the T-shaped sliding groove is arranged at the bottom of the C-shaped seat, and the T-shaped sliding block is sleeved outside the threaded shaft.

[0010] As a further solution of the utility model: a receiving cavity is formed at the bottom of the end clamp, anti-detachment grooves are formed on the inner walls of both sides of the receiving cavity, and a compensation block is slidably arranged between the anti-detachment grooves.

[0011] As a further solution of the utility model: a one-way lead screw is rotatably arranged inside the receiving cavity, and the one-way lead screw is located above the compensation block, and a pressing block matched with the compensation block is sleeved outside the one-way lead screw.

[0012] As a further solution of the utility model: a lifting groove for limiting the end clamp is formed on the side wall of the C-shaped seat, and fixing grooves are formed at the four corners of the top of the substrate.

[0013] The beneficial effects of the utility model:

[0014] In the utility model, the trapezoidal grooves formed on the limiting seat can limit both sides of the short rail, avoid the offset of the horizontal end face during processing, ensure the stability of processing, the width of the trapezoidal groove gradually decreases from top to bottom, and can form side limits for short rails of different widths. Rotating the bidirectional lead screw to drive the trapezoidal blocks to approach each other can form a V-shaped surface with a smaller distance, which can form side limits for the short rails with a smaller width. When the end clamp cannot squeeze the top end face of the short rail, the staff can rotate the one-way lead screw to drive the pressing block to squeeze the compensation block downward, so that the compensation block protrudes from the bottom of the end clamp, further compensating for the distance difference with the short rail. The device has high flexibility and a simple structure, and can form stable positioning for short rails of more specifications. Description of the drawings

[0015] The following further explains the present utility model with reference to the drawings.

[0016] Figure 1 is the overall three-dimensional schematic diagram of the device in the present utility model;

[0017] Figure 2 is the three-dimensional schematic diagram of the positioning component in the present utility model;

[0018] Figure 3 is the structural schematic diagram of the positioning component in the present utility model.

[0019] In the figure: 1, substrate; 2, pad; 3, T-shaped chute; 4, threaded shaft; 5, C-shaped seat; 6, T-shaped slider; 7, limit seat; 8, trapezoidal groove; 9, inner cavity; 10, bidirectional lead screw; 11, trapezoidal block; 12, pressure screw; 13, end clamp; 14, accommodation cavity; 15, anti-disengagement groove; 16, compensation block; 17, unidirectional lead screw; 18, pressing block; 19, lifting groove; 20, fixing groove. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0021] As Figures 1 - 3 shown, a processing and positioning device for alloy steel short rails used in alloy steel frog switches includes a substrate 1 and a pad 2 arranged on the substrate 1;

[0022] A positioning component is provided on the cushion table 2. The positioning component includes a U-shaped seat 5 slidably arranged on the end face of the cushion table 2, a limiting seat 7 arranged on the bottom wall of the U-shaped seat 5, a trapezoidal groove 8 opened on the top of the limiting seat 7, an inner cavity 9 opened on the bottom wall of the trapezoidal groove 8, a bidirectional lead screw 10 rotatably arranged inside the inner cavity 9, two groups of symmetrically distributed trapezoidal blocks 11 sleeved on the outer side of the bidirectional lead screw 10. The trapezoidal blocks 11 are in the shape of isosceles trapezoids, and the inclined surfaces of the trapezoidal blocks 11 are flush with the inclined surface of the trapezoidal groove 8 in the initial position. A pressure screw 12 is slidably arranged on the top of the U-shaped seat 5, an end clamp 13 is arranged at the bottom end of the pressure screw 12, a receiving cavity 14 is opened at the bottom of the end clamp 13, anti-detachment grooves 15 are opened on the inner side walls of both sides of the receiving cavity 14, a compensation block 16 is slidably arranged between the anti-detachment grooves 15, a unidirectional lead screw 17 is rotatably arranged inside the receiving cavity 14, and the unidirectional lead screw 17 is located above the compensation block 16. A pressure block 18 matching the compensation block 16 is sleeved on the outer side of the unidirectional lead screw 17. When processing the short rail, the short rail can be placed in the trapezoidal groove 8. The end face of the trapezoidal groove 8 can limit both sides of the short rail, avoiding the offset of the horizontal end face during processing, ensuring the stability of processing. And since the width of the trapezoidal groove 8 gradually decreases from top to bottom, side limiting can be formed for short rails of different widths. Then, by driving the pressure screw 12 to control the movement of the end clamp 13, the upper end face of the short rail can be extruded, thereby forming stable positioning for the short rail. When the width of the short rail is small, the staff can also rotate the bidirectional lead screw 10, so as to drive the trapezoidal blocks 11 to approach each other to form a V-shaped surface with a smaller spacing, which can limit the side of the short rail with a smaller width. The staff drives the unidirectional lead screw 17, so that the pressure block 18 presses the compensation block 16 downward. The compensation block 16 protrudes from the bottom of the end clamp 13, and can form extrusion on the short rail with a smaller thickness.

[0023] In this embodiment, specifically, a T-shaped sliding groove 3 for limiting the U-shaped seat 5 is opened on the end face of the cushion table 2. A threaded shaft 4 is rotatably arranged inside the T-shaped sliding groove 3. A T-shaped slider 6 matching the T-shaped sliding groove 3 is arranged at the bottom of the U-shaped seat 5. The T-shaped slider 6 is sleeved on the outer side of the threaded shaft 4.

[0024] In this embodiment, specifically, a lifting groove 19 for limiting the end clamp 13 is opened on the side wall of the U-shaped seat 5. One end of the end clamp 13 protrudes and is located inside the lifting groove 19. When the pressure screw 12 drives the end clamp 13 to move up and down, it can ensure that the end clamp 13 will not deviate. Fixing grooves 20 are opened at the four corners of the top of the substrate 1. The fixing grooves 20 are used for installing bolts, and the whole device can be fixed on the processing table, ensuring the stability of the whole device.

[0025] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. A positioning device for processing alloy steel short rails used in alloy steel frog, comprising a base plate (1) and a cushion table (2) arranged on the base plate (1); characterized in that: A positioning component is arranged on the cushion table (2), and the positioning component includes a C-shaped seat (5) slidably arranged on the end face of the cushion table (2), a limiting seat (7) arranged on the bottom wall of the C-shaped seat (5), a trapezoidal groove (8) opened on the top of the limiting seat (7), a cavity (9) opened on the bottom wall of the trapezoidal groove (8), a bidirectional lead screw (10) rotatably arranged inside the cavity (9), two groups of symmetrically distributed trapezoidal blocks (11) sleeved on the outside of the bidirectional lead screw (10), a pressure screw (12) slidably arranged on the top of the C-shaped seat (5), and an end clamp (13) arranged at the bottom end of the pressure screw (12).

2. The alloy steel short rail processing and positioning device for alloy steel frog according to claim 1, characterized in that: The trapezoidal block (11) is in the shape of an isosceles trapezoid, and the inclined surface of the trapezoidal block (11) is flush with the inclined surface of the trapezoidal groove (8) in the initial position.

3. The alloy steel short rail processing and positioning device for alloy steel frog according to claim 1, characterized in that: A T-shaped sliding groove (3) for limiting the C-shaped seat (5) is opened on the end face of the cushion table (2), a threaded shaft (4) is rotatably arranged inside the T-shaped sliding groove (3), a T-shaped slider (6) matching with the T-shaped sliding groove (3) is arranged at the bottom of the C-shaped seat (5), and the T-shaped slider (6) is sleeved on the outside of the threaded shaft (4).

4. The alloy steel short rail processing and positioning device for alloy steel frog according to claim 1, characterized in that: An accommodation cavity (14) is opened at the bottom of the end clamp (13), anti-slip grooves (15) are opened on the inner walls of both sides of the accommodation cavity (14), and a compensation block (16) is slidably arranged between the anti-slip grooves (15).

5. The alloy steel short rail processing and positioning device for alloy steel frog according to claim 4, characterized in that: A unidirectional lead screw (17) is rotatably arranged inside the accommodation cavity (14), and the unidirectional lead screw (17) is located above the compensation block (16), and a pressing block (18) matching with the compensation block (16) is sleeved on the outside of the unidirectional lead screw (17).

6. The alloy steel short rail processing and positioning device for alloy steel frog according to claim 1, characterized in that: A lifting groove (19) for limiting the end clamp (13) is opened on the side wall of the C-shaped seat (5), and fixing grooves (20) are opened at the four corners of the top of the base plate (1).

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