Continuous valve cover press-fitting structure for assembling railway vehicle brake valve

Abstract

The utility model discloses a continuous valve cover press-fitting structure for assembling a railway vehicle brake valve, which comprises an operation table and a vertical frame arranged on the operation table, a downward pressing mechanism is arranged on the vertical frame, and a rotary driving mechanism is arranged at the lower part of the operation table. A rotary driving mechanism is arranged in the valve cover limiting groove, the output end of the rotary driving mechanism extends to the upper portion of the operation table and is connected with the rotary table, and a rotary supporting component is arranged between the rotary table and the operation table. The ejector block is placed on the valve cover body and clamped through the pneumatic clamping assembly, at the moment, automatic centering between the ejector block and the center through hole of the valve cover body can be achieved, the downward pressing mechanism is controlled to act, the lower end of the ejector block is pressed into the center through hole in the valve cover body, the clamping assembly is controlled to be started to reset, and limiting on the ejector block is relieved; and the downward pressing mechanism is controlled to continue downward pressing, and the ejector block is completely pressed in place.

Description

Technical Field

[0001] The utility model relates to the technical field of railway brake valve assembly, in particular to a continuous valve cover press-fitting structure for assembling railway vehicle brake valves. Background Art

[0002] The valve body cover of the railway brake valve is provided with a through hole in the center, and a top block is provided in the center of the through hole. When braking is required, the top block moves forward under the action of external force to transmit the braking force. When the top block and the valve body cover are assembled into one, a sleeve pressing device is required to ensure that the lower cylinder of the top block is aligned and pressed with the through hole in the center of the valve body cover. The existing sleeve pressing device includes a support platform, a downward pressing mechanism provided above the support platform, and a valve body cover positioning structure provided on the upper surface of the support platform. When in use, the valve body cover is placed in the positioning structure, and the top block is placed above the valve body cover. After manual auxiliary alignment, the downward pressing mechanism is used to apply pressure to the upper part of the top block so that the lower cylinder of the top block is inserted into the through hole in the center of the valve body cover. Since manual auxiliary alignment is required, the operation is laborious.

[0003] Chinese patent application number CN202323297257.1 discloses a pressing sleeve device for the valve body cover of a railway brake valve. Through the cooperation of the limiting tooling and the pressing assembly, the automatic centering operation of the pressing sleeve and the valve cover assembly is realized, which greatly reduces the manual labor intensity during the assembly process; however, in the actual operation process, the above technical solution still has the following defects: 1. The support platform adopts a fixed design, the operation continuity is poor, and the assembly efficiency is low; 2. The limiting tooling and the pressing mechanism are both manually adjusted, which is time-consuming and labor-intensive. In view of this, in-depth research was conducted on the above problems, and this case was created. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a continuous valve cover press-fitting structure for assembling a brake valve of a railway vehicle, which solves the problems raised in the background art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a continuous valve cover pressing structure for assembling railway vehicle brake valves, comprising an operating table and a stand arranged on the operating table, the stand being provided with a downward pressing mechanism, a rotary drive mechanism being provided at the lower part of the operating table, the output end of the rotary drive mechanism extending to the upper part of the operating table and connected to the rotating table, a rotating support member being provided between the rotating table and the operating table, a valve cover limiting groove being provided in an annular array on the upper edge of the rotating table, limiting guide pillars being provided around the valve cover limiting groove, the valve cover body being placed in the valve cover limiting groove and the assembly holes on the valve cover body being inserted into the limiting guide pillars, supports being symmetrically provided on both sides of the valve cover limiting groove, and a pneumatic clamping assembly being provided on the supports.

[0006] The pneumatic clamping assembly comprises a cylinder and an arc-shaped clamping block. The cylinder is arranged on a support in a horizontal direction, and the arc-shaped clamping block is installed on the telescopic end of the cylinder.

[0007] The above-mentioned pressing mechanism includes a fixed seat, a hydraulic cylinder, a guide and a pressure head. The fixed seat is set on the vertical frame, the hydraulic cylinder is installed on the fixed seat along the vertical direction, the guide is symmetrically arranged on both sides of the hydraulic cylinder, and the pressure head is installed on the telescopic end of the hydraulic cylinder and connected to the guide.

[0008] The guide member includes a guide sleeve and a guide rod. The guide sleeve is installed on the stand and symmetrically arranged along the fixed seat. The guide rod is slidably inserted in the guide sleeve and connected to the pressure head.

[0009] The above-mentioned rotary drive mechanism includes a servo motor, a reducer and a fixed shaft. The servo motor is arranged at the lower part of the operating table and its output end is connected to the input end of the reducer. The fixed shaft is rotatably arranged on the operating table and its upper end is connected to the rotating table and its lower end is connected to the output end of the reducer.

[0010] The above-mentioned rotating support component includes an annular guide rail and an arc-shaped slider. The annular guide rail is set on the operating table and arranged coaxially with the rotating table. The arc-shaped slider slides along the annular array and is sleeved on the annular guide rail and connected to the lower end surface of the rotating table.

[0011] The utility model provides a continuous valve cover press-fitting structure for assembling a brake valve for a railway vehicle. The structure has the following beneficial effects: a valve cover limiting groove is formed in an annular array on the upper edge of a rotating table. The valve cover body is placed in the valve cover limiting groove, a top block is placed on the valve cover body, and a pneumatic clamping assembly is used to clamp the top block. At this time, the top block and the central through hole of the valve cover body are automatically aligned. The pressing mechanism is controlled to move, thereby pressing the lower end of the top block into the central through hole of the valve cover body. The clamping assembly is controlled to reset to release the limit on the top block, and the pressing mechanism is controlled to continue pressing downward to completely press the top block into place. The pressing mechanism is controlled to reset and the rotary drive mechanism is controlled to rotate the rotating table, thereby removing the pressed workpiece and allowing the next valve cover body to be processed and the top block to enter under the pressing mechanism. The valve cover press-fitting operation is continuously performed, ensuring the quality of the press-fitting operation while greatly improving the assembly efficiency and automation level. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the three-dimensional structure of a continuous valve cover press-fitting structure for assembling a railway vehicle brake valve.

[0013] Figure 2 The utility model is a schematic top view of the continuous valve cover press-fitting structure for assembling a railway vehicle brake valve.

[0014] Figure 3 This is a schematic diagram of the main cross-sectional structure of a continuous valve cover press-fitting structure for assembling a railway vehicle brake valve according to the present invention.

[0015] In the figure: 1. Operating table; 2. Stand; 3. Rotating table; 4. Valve cover limit groove; 5. Limiting guide column; 6. Valve cover body; 7. Support; 8. Cylinder; 9. Arc clamping block; 10. Fixed seat; 11. Hydraulic cylinder; 12. Pressure head; 13. Guide sleeve; 14. Guide rod; 15. Servo motor; 16. Reducer; 17. Fixed shaft; 18. Annular guide rail; 19. Arc slider; 20. Top block. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example: In conjunction with the instructions attached Figure 1-3It can be seen that in order to solve the problems in the prior art that the support platform of the pressing device of the valve body cover of the railway brake valve adopts a fixed design, the operation continuity is poor, the assembly efficiency is low, and the limiting tooling and the pressing mechanism are manually adjusted, which is time-consuming and labor-intensive, the present application specifically designs a continuous valve cover pressing structure for assembling railway vehicle brake valves, including an operating table 1 and a stand 2 arranged on the operating table 1, a pressing mechanism is arranged on the stand 2, a rotary drive mechanism is arranged at the lower part of the operating table 1, the output end of the rotary drive mechanism extends to the upper part of the operating table 1 and is connected to the rotating table 3, a rotating support member is arranged between the rotating table 3 and the operating table 1, a valve cover limiting groove 4 is opened along the annular array on the rotating table 3, and limiting guide columns 5 are arranged around the valve cover limiting groove 4, the valve cover body 6 is placed in the valve cover limiting groove 4 and the assembly hole on the valve cover body 6 is inserted into the limiting guide columns 5, and supports 7 are symmetrically arranged on both sides of the valve cover limiting groove 4. 7 is provided with a pneumatic clamping assembly, and a valve cover limiting groove 4 is opened on the rotating table 3 along the annular array. The valve cover body 6 is placed in the valve cover limiting groove 4, the top block 20 is placed on the valve cover body 6 and the pneumatic clamping assembly is used to clamp the top block 20. At this time, automatic alignment between the top block 20 and the central through hole of the valve cover body 6 can be achieved, and the action of the pressing mechanism is controlled to press the lower end of the top block 20 into the central through hole on the valve cover body 6, and the control is started to reset the clamping assembly to release the limit on the top block 20, and the pressing mechanism is controlled to continue to press down, and the top block 20 is completely pressed into place; the pressing mechanism is controlled to reset, and the rotary drive mechanism is controlled to rotate the rotating table 3, and then the pressed workpiece is taken out, and the next valve cover body 6 to be processed and the top block 20 enter under the pressing mechanism, so that the valve cover pressing operation is carried out continuously, while ensuring the quality of the pressing operation, greatly improving the assembly efficiency and automation level.

[0018] In the specific implementation process, as a preferred setting, the above-mentioned pneumatic clamping assembly includes a cylinder 8 and an arc-shaped clamping block 9. The cylinder 8 is arranged on the support 7 in the horizontal direction, and the arc-shaped clamping block 9 is installed on the telescopic end of the cylinder 8. The movement of the telescopic end of the cylinder 8 is used to realize the horizontal adjustment of the arc-shaped clamping block 9, thereby realizing the rapid centering clamping of the top block 20. The structure is simple and the degree of automation is high.

[0019] The guide rods 14 are symmetrically arranged on both sides of the hydraulic cylinder 11, and the pressure head 12 is installed on the telescopic end of the hydraulic cylinder 11 and is connected to the guide member. The guide member includes a guide sleeve 13 and a guide rod 14. The guide sleeve 13 is installed on the vertical frame 2 and is symmetrically arranged along the fixed seat 10. The guide rod 14 is slidably inserted in the guide sleeve 13 and is connected to the pressure head 12. When in use, the telescopic end of the hydraulic cylinder 11 is used to push the pressure head 12 in the vertical direction, so that the pressure head 12 is smoothly lifted and lowered under the limiting action of the guide rods 14 on both sides, and in the process of pressing down, the top block 20 is pressed onto the valve cover body 6. The stroke is controllable and the force applied during the pressing down is stable, which can effectively ensure the quality of the pressing operation.

[0020] During the specific implementation process, as a preferred setting, the above-mentioned rotary drive mechanism includes a servo motor 15, a reducer 16 and a fixed shaft 17. The servo motor 15 is arranged at the lower part of the operating table 1 and the output end is connected to the input end of the reducer 16. The fixed shaft 17 is rotatably arranged on the operating table 1 and the upper end is connected to the rotating table 3 and the lower end is connected to the output end of the reducer 16. The driving end of the servo motor 15 is controlled to rotate at a constant speed along the designed interval, so that under the cooperation of the reducer 16, the intermittent fixed-angle rotation of the fixed shaft 17 is realized, and then the fixed-angle intermittent rotation adjustment of the rotating table 3 is realized. In cooperation with the downward pressing mechanism, the valve cover body 6 and the top block 20 are pressed together quickly and continuously.

[0021] During the specific implementation process, as a preferred setting, the above-mentioned rotating support component includes an annular guide rail 18 and an arc-shaped slider 19. The annular guide rail 18 is set on the operating table 1 and is coaxially arranged with the rotating table 3. The arc-shaped slider 19 slides along the annular array and is mounted on the annular guide rail 18 and is connected to the lower end surface of the rotating table 3. Through the sliding cooperation between the arc-shaped slider 19 and the annular guide rail 18, the smoothness of the rotation of the rotating table 3 is further improved, and at the same time, a vertical support function is provided for the support table, thereby improving the overall operation stability of the device.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous valve cover press-fitting structure for assembling a railway vehicle brake valve, comprising an operating platform and a stand mounted on the operating platform, characterized in that: A downward pressing mechanism is provided on the stand, and a rotary driving mechanism is provided at the lower part of the operating table. The output end of the rotary driving mechanism extends to the upper part of the operating table and is connected to the rotating table. A rotating support member is provided between the rotating table and the operating table. A valve cover limiting groove is provided in an annular array along the upper edge of the rotating table. Limiting guide pillars are provided around the valve cover limiting groove. The valve cover body is placed in the valve cover limiting groove and the assembly holes on the valve cover body are inserted into the limiting guide pillars. Supports are symmetrically provided on both sides of the valve cover limiting groove, and a pneumatic clamping assembly is provided on the support.

2. The continuous valve cover press-fitting structure for assembling a railway vehicle brake valve according to claim 1, characterized in that: The pneumatic clamping assembly includes a cylinder and an arc-shaped clamping block. The cylinder is arranged on a support in a horizontal direction, and the arc-shaped clamping block is installed on the telescopic end of the cylinder.

3. The continuous valve cover press-fitting structure for assembling a railway vehicle brake valve according to claim 1, characterized in that: The pressing mechanism includes a fixed seat, a hydraulic cylinder, a guide and a pressure head. The fixed seat is set on the vertical frame, the hydraulic cylinder is installed on the fixed seat along the vertical direction, the guide is symmetrically arranged on both sides of the hydraulic cylinder, and the pressure head is installed on the telescopic end of the hydraulic cylinder and connected to the guide.

4. The continuous valve cover press-fitting structure for assembling a railway vehicle brake valve according to claim 3, characterized in that: The guide member includes a guide sleeve and a guide rod. The guide sleeve is installed on the stand and symmetrically arranged along the fixed seat. The guide rod is slidably inserted in the guide sleeve and connected to the pressure head.

5. The continuous valve cover press-fitting structure for assembling a railway vehicle brake valve according to claim 1, characterized in that: The rotary drive mechanism includes a servo motor, a reducer and a fixed shaft. The servo motor is arranged at the lower part of the operating table and the output end is connected to the input end of the reducer. The fixed shaft is rotatably arranged on the operating table and the upper end is connected to the rotating table and the lower end is connected to the output end of the reducer.

6. The continuous valve cover press-fitting structure for assembling a railway vehicle brake valve according to claim 1, characterized in that: The rotating support member includes an annular guide rail and an arc-shaped slider. The annular guide rail is arranged on the operating table and coaxially with the rotating table. The arc-shaped slider slides along the annular array and is sleeved on the annular guide rail and connected to the lower end surface of the rotating table.

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