Railway passenger car axle box rotating arm machining and positioning tool

Abstract

A railway passenger car axle box rotating arm machining and positioning tool comprises a bottom plate, two supporting seats which are distributed front and back are fixedly installed on the bottom plate, positioning pins are fixedly installed on the upper end faces of the two supporting seats respectively, and vertical screw rods are fixedly installed on the left side and the right side of the supporting seat located on the front portion and the rear portion of the supporting seat located on the rear portion on the bottom plate respectively. Each screw is sleeved with a pressing plate, the head end of each pressing plate points to the corresponding supporting seat, nuts are installed on the portions, above the pressing plates, of the screws, and supporting rods are fixedly installed on the bottom plate and correspond to the tails of the pressing plates. The positioning operation is simple, time and labor are saved, the positioning efficiency is high, the positioning structure is firm, machining is accurate, and the product percent of pass is high.

Description

Technical Field

[0001] The utility model relates to an axle box swing arm in a bogie of a rail vehicle, in particular to a processing positioning tooling for an axle box swing arm of a rail vehicle. Background Art

[0002] The function of a bogie of a rail vehicle is to support the car body of the rail vehicle, reduce the vibration of the car body of the rail train, and improve the running stability of the rail train. As an important part of the bogie of a rail vehicle, the main function of the axle box swing arm of the rail vehicle is to connect the wheel set with the side frame or the frame, convert the rolling of the wheel set along the rail into the translation of the car body, bear the weight of the car body and transmit the acting force.

[0003] During the processing of the axle box swing arm of a rail vehicle, it is necessary to position the axle box swing arm of the rail vehicle on the operation platform of a numerical control machine tool. The traditional positioning method for the axle box swing arm of a rail vehicle is as follows: First, determine the reference line of the axle box swing arm of the rail vehicle through manual scribing and correct it, then use multiple shims to support the axle box swing arm of the rail vehicle on the operation table of the numerical control machine tool, and finally tighten the bolts on the operation table of the numerical control machine tool, and clamp and fix the axle box swing arm of the rail vehicle through the pressure plate connected to the bolts. The traditional positioning operation of the axle box swing arm of a rail vehicle is complex, time-consuming and laborious, and the positioning efficiency is low; moreover, the positioning structure supported by the shims is not firm, the processing of the axle box swing arm of the rail vehicle is inaccurate, and the product qualification rate is low. Summary of the Invention

[0004] The utility model is to solve the above technical problems, and provides a processing positioning tooling for an axle box swing arm of a rail vehicle, with simple positioning operation, time-saving and labor-saving, high positioning efficiency, firm positioning structure, accurate processing and high product qualification rate.

[0005] The technical solution of the utility model is as follows:

[0006] A processing positioning tooling for an axle box swing arm of a rail vehicle includes a bottom plate, and is characterized in that: two support seats distributed front and back are fixedly installed on the bottom plate, positioning pins are respectively fixedly installed on the upper end faces of the two support seats, vertical screw rods are respectively fixedly installed on the left and right sides of the support seat at the front part and behind the support seat at the rear part on the bottom plate, pressure plates are respectively sleeved on the screw rods, the head ends of the pressure plates point to the corresponding support seats, nuts are respectively installed above the pressure plates on the screw rods, and support rods are fixedly installed on the bottom plate corresponding to the tail parts of the pressure plates.

[0007] Furthermore, support blocks are respectively fixedly installed on the left and right sides of the support seat at the front part and behind the support seat at the rear part on the bottom plate, and the screw rods and the support rods are fixedly installed on the corresponding support blocks.

[0008] Further, an auxiliary support is fixedly installed in front of the support base located at the front part of the bottom plate, and a vertically rotatable toggle clamp is fixedly installed in front of the auxiliary support on the bottom plate to fix the front end of the swing arm of the railway passenger car axle box, improving the positioning stability.

[0009] Further, the auxiliary support includes a support sleeve fixedly installed on the bottom plate, a support pin is slidably installed up and down in the support sleeve, a setscrew is installed on the side wall of the support sleeve through a thread to adjust the height of the support pin up and down, and the setscrew is tightened to position the support pin.

[0010] The beneficial effects of the present utility model are as follows:

[0011] Since two support bases distributed front and rear are fixedly installed on the bottom plate, positioning pins are respectively fixedly installed on the upper end faces of the two support bases, vertical screw rods are respectively fixedly installed on the left and right sides of the support base located at the front part of the bottom plate and behind the support base located at the rear part of the bottom plate, pressure plates are respectively sleeved on each screw rod, the head ends of the pressure plates point to the corresponding support bases, nuts are respectively installed above the pressure plates on each screw rod, and support rods are fixedly installed on the bottom plate corresponding to the tail parts of each pressure plate. The swing arm of the railway passenger car axle box is positioned up and down through the support base and the pressure plate, and is positioned circumferentially through the positioning pin. The positioning structure is firm, the processing is accurate, and the product qualification rate is high. And the traditional method of manually drawing a reference line and correcting the positioning is cancelled, the positioning operation is simple, time-saving and labor-saving, and the positioning efficiency is high. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a diagram of the use state of the present utility model;

[0014] In the figure: 1-bottom plate, 2-support base, 3-positioning pin, 4-support block, 5-screw rod, 6-pressure plate, 7-nut, 8-support rod, 9-support sleeve, 10-support pin, 11-setscrew, 12-toggle clamp. Detailed Embodiment

[0015] Such as Figure 1As shown in the figure, a positioning tooling for machining the swing arm of an axle box of a rail passenger car includes a bottom plate 1, on which two support seats 2 distributed front and rear are fixedly installed. Positioning pins 3 are fixedly installed on the upper end faces of the two support seats 2 respectively. Support blocks 4 are fixedly installed on the left and right sides of the front support seat 2 and behind the rear support seat 2 on the bottom plate 1 respectively. Vertical screw rods 5 are installed on each support block 4 respectively, and pressure plates 6 are sleeved on each screw rod 5. The head end of the pressure plate 6 points to the corresponding support seat 2. Nuts 7 are installed above the pressure plates 6 on each screw rod 5 respectively. Support rods 8 are fixedly installed on each support block 4 corresponding to the tail of each pressure plate 6. An auxiliary support is fixedly installed in front of the front support seat 2 on the bottom plate 1. The auxiliary support includes a support sleeve 9 fixedly installed on the bottom plate 1, a support pin 10 is slidably installed up and down in the support sleeve 9, and a setscrew 11 is installed on the side wall of the support sleeve 9 through threads. An elbow-type clamp 12 that rotates up and down is fixedly installed in front of the auxiliary support on the bottom plate 1.

[0016] As Figure 2 As shown in the figure, during the positioning operation, first place the swing arm seat of the axle box of the rail passenger car on the upper end faces of the two support seats 2, and at the same time insert the two positioning pins 3 into the positioning holes on the lower end face of the swing arm of the axle box of the rail passenger car. Then tighten the nuts 7 to press each pressure plate 6 against the upper end face of the swing arm of the rail passenger car. At this time, the pressure plate 6 is supported on the upper end face of the support rod 8, positioning the swing arm of the rail passenger car up and down and circumferentially. Then adjust the height of the support pin 10 up and down, support the support pin 10 on the lower end face of the swing arm of the rail passenger car, tighten the setscrew 11 to position the support pin 10, and press the inner circle surface of the rail passenger car through the elbow-type clamp 12 to fix the front part of the rail passenger car up and down.

[0017] The above are only specific embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A railway passenger car axle box arm processing and positioning tool, including a bottom plate, characterized in that: Two support seats distributed front and back are fixedly installed on the base plate, positioning pins are fixedly installed on the upper end surfaces of the two support seats, vertical screws are fixedly installed on the left and right sides of the support seat located at the front and behind the support seat located at the rear on the base plate, and a pressure plate is respectively mounted on each screw, and the head end of the pressure plate points to the corresponding support seat, and nuts are respectively installed on each screw above the pressure plate, and support rods are fixedly installed on the base plate corresponding to the tail of each pressure plate.

2. The railway passenger car axle box arm processing and positioning tool according to claim 1 is characterized in that: Support blocks are fixedly installed on the left and right sides of the support seat at the front and behind the support seat at the rear on the bottom plate, respectively, and the screw rods and support rods are fixedly installed on the corresponding support blocks.

3. The railway passenger car axle box arm processing and positioning tool according to claim 1 is characterized in that: An auxiliary support is fixedly installed in front of a support seat located at the front of the bottom plate, and a toggle clamp which rotates up and down is fixedly installed in front of the auxiliary support on the bottom plate.

4. The railway passenger car axle box arm processing and positioning tool according to claim 3 is characterized in that: The auxiliary support comprises a support sleeve fixedly mounted on the bottom plate, a support pin slidably mounted up and down in the support sleeve, and a top screw is threadedly mounted on the side wall of the support sleeve.

Images