Detachable clamping tool used in subway vehicle body manufacturing process

Abstract

The utility model discloses a detachable clamping tool used in the manufacturing process of a subway vehicle body, which belongs to the field of clamping tools and comprises a support and a cross beam, after a handle is manually dragged to be unable to be dragged through an arranged adjusting and positioning mechanism, a concave plate is moved towards one side direction, and the concave plate is moved towards the other side direction. After a concave plate moves a workpiece clamping mechanism to a proper position along a transverse frame through a sliding strip, pulling force on a handle is released, a compression spring pushes a movable plate to move upwards under the elastic extension acting force, and a limiting block enters a positioning groove corresponding to the bottom face of the transverse frame; therefore, the purpose of quickly adjusting the distance between the workpiece clamping mechanisms according to the length of the cross beam is achieved, the purpose of quickly clamping and fixing the cross beams with different lengths during cross beam machining is achieved by matching with the use of the workpiece clamping mechanisms, and meanwhile, the cross beams can be quickly disassembled through the workpiece clamping mechanisms after being machined, so that the machining efficiency is improved. And the machining efficiency of the cross beam in the subway vehicle body manufacturing process is improved.

Description

Technical Field

[0001] The utility model relates to the field of clamping tools, and particularly relates to a detachable clamping tool used in the manufacturing process of subway car bodies. Background Art

[0002] The subway is a type of urban rail transit line system, which refers to the rail transit built in the city, with fast speed, large carrying capacity, and electric traction. The train runs on a fully enclosed line, and the lines in the central urban area are basically located in underground tunnels, while the lines outside the central urban area are generally located on viaducts or on the ground. The subway is an urban rail transit system that covers various underground and above-ground exclusive rights of way, high density, and high carrying capacity in urban areas.

[0003] In the prior art, the manufacturing of subway car bodies involves the processing and assembly of various precision components, such as the underframe, side walls, end walls, etc. During the processing of crossbeams in the manufacturing process of subway car bodies, clamping tools are required to ensure the stable fixation of the crossbeams on the processing machine tools to prevent vibration and displacement during the processing. However, during the use of existing clamping tools, most of them adjust the corresponding components by tightening or loosening bolts with auxiliary tools to fix the crossbeams. The operation is relatively cumbersome. It is not only inconvenient to quickly fix the crossbeams during processing, but also inconvenient to quickly disassemble the crossbeams after processing. At the same time, the clamping tools are generally fixedly installed, resulting in difficulty in quickly adjusting the position of the crossbeams when processing crossbeams of different lengths, thereby reducing the processing efficiency of crossbeams in the manufacturing process of subway car bodies. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a detachable clamping tool used in the manufacturing process of subway car bodies, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A detachable clamping tool used in the manufacturing process of subway car bodies, comprising a support and a cross beam. A cross frame is fixedly connected between the top surfaces of the two supports. A set of symmetric adjustment and positioning mechanisms are provided on the cross frame. The adjustment and positioning mechanism includes a concave plate, a movable plate, a limit block and a compression spring. The concave plate is movably connected to the cross frame through sliding strips on both sides of the inner wall. A limit block is fixedly connected to the top surface of the movable plate. The movable plate is movably connected inside the concave plate through a connecting rod on the bottom surface. The compression spring is sleeved outside the connecting rod. A workpiece clamping mechanism is further provided on the top surface of the concave plate. The workpiece clamping mechanism includes a concave seat, a clamping plate and a threaded rod. The concave seat is fixedly connected to the top surface of the concave plate. The clamping plate is movably connected inside the concave seat through a slider on the bottom surface. The threaded rod is movably connected to a threaded hole opened on the front end wall of the concave seat. The threaded rod is also movably connected to the clamping plate through a rotating rod at the rear end. The cross beam is fixedly connected between the symmetric workpiece clamping mechanisms.

[0007] Preferably, sliding grooves are respectively opened on the front and rear side walls of the cross frame, and a number of positioning grooves are also opened on the bottom surface of the cross frame in a horizontal array manner.

[0008] Preferably, sliding strips are respectively fixedly installed on both sides of the inner wall of the concave plate, and the sliding strips are movably installed in the sliding grooves. A set of symmetric connecting holes are opened on the inner bottom surface of the concave plate.

[0009] Preferably, a limit block corresponding to the positioning groove is fixedly installed on the top surface of the movable plate, and a set of symmetric connecting rods are fixedly installed on the bottom surface of the movable plate. The connecting rods are inserted and installed in the connecting holes. The compression spring is sleeved outside the connecting rods and is fixedly installed between the bottom surface of the movable plate and the inner bottom surface of the concave plate. A handle is also fixedly installed together on the bottom surfaces of the symmetric connecting rods.

[0010] Preferably, the concave seat is fixedly installed on the top surface of the concave plate, and a sliding opening is opened on the inner bottom surface of the concave seat. A threaded hole is opened on the front end wall of the concave seat.

[0011] Preferably, a slider is fixedly installed on the bottom surface of the clamping plate, and the slider is movably installed in the sliding opening. A fixed cylinder is fixedly installed on the front end wall of the clamping plate, and a bearing is fixedly installed inside the cylinder of the fixed cylinder. The threaded rod is threadedly connected to the threaded hole. A rotating rod is fixedly installed at the rear end of the threaded rod. The rotating rod is inserted and fixedly installed together with the bearing. A crank is also fixedly installed at the front end of the threaded rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the present utility model, through the provided adjustment and positioning mechanism, after manually pulling the handle until it cannot be pulled anymore, move the concave plate in one direction, so that the concave plate moves the workpiece clamping mechanism along the cross frame through the sliding strip to a suitable position. Then, release the pulling force on the handle. The compression spring will push the movable plate upward under the elastic stretching force, so that the limiting block enters the corresponding positioning groove on the bottom surface of the cross frame, thereby achieving the purpose of facilitating the quick adjustment of the distance between the workpiece clamping mechanisms according to the length of the cross beam. And in cooperation with the use of the workpiece clamping mechanism, place the two ends of the cross beam into the adjusted concave seats respectively. After turning the crank handle to make the threaded rod perform a threaded rotation operation in the threaded hole, drive the rotating rod to rotate in the bearing, and push the clamping plate backward through the rotating rod until the two ends of the cross beam are clamped and fixed in the concave seats, thus achieving the purpose of facilitating the quick clamping and fixing of cross beams with different lengths during the processing of the cross beam. At the same time, through the workpiece clamping mechanism, the cross beam can be quickly disassembled after processing, and the processing efficiency of the cross beam in the manufacturing process of the subway car body is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the overall structure of the cross frame of the present utility model;

[0016] Figure 3 is a schematic diagram of the structural disassembly of the workpiece clamping mechanism of the present utility model;

[0017] Figure 4 is a schematic diagram of the structural disassembly of the adjustment and positioning mechanism of the present utility model.

[0018] In the figure: 1, support; 2, cross frame; 3, adjustment and positioning mechanism; 4, workpiece clamping mechanism; 5, cross beam; 6, sliding groove; 7, positioning groove; 8, concave seat; 9, sliding opening; 10, threaded hole; 11, clamping plate; 12, slider; 13, fixed cylinder; 14, bearing; 15, threaded rod; 16, rotating rod; 17, crank handle; 18, concave plate; 19, sliding strip; 20, connecting hole; 21, movable plate; 22, limiting block; 23, connecting rod; 24, compression spring; 25, handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Such as Figure 1 - Figure 4As shown in the figure, a detachable clamping tool used in the manufacturing process of subway car bodies includes a support 1 and a cross beam 5. A cross frame 2 is fixedly connected between the top surfaces of the two supports 1. A set of symmetric adjustment and positioning mechanisms 3 are provided on the cross frame 2. The adjustment and positioning mechanism 3 includes a concave plate 18, a movable plate 21, a limit block 22, and a compression spring 24. The concave plate 18 is movably connected to the cross frame 2 through slide bars 19 on both sides of the inner wall. The top surface of the movable plate 21 is fixedly connected with the limit block 22, and the movable plate 21 is movably connected within the concave plate 18 through a connecting rod 23 on the bottom surface. The compression spring 24 is sleeved outside the connecting rod 23. A workpiece clamping mechanism 4 is further provided on the top surface of the concave plate 18. The workpiece clamping mechanism 4 includes a concave seat 8, a clamping plate 11, and a threaded rod 15. The concave seat 8 is fixedly connected to the top surface of the concave plate 18, and the clamping plate 11 is movably connected within the concave seat 8 through a slider 12 on the bottom surface. The threaded rod 15 is movably connected in a threaded hole 10 opened on the front end wall of the concave seat 8, and the threaded rod 15 is also movably connected to the clamping plate 11 through a rotating rod 16 at the rear end. The cross beam 5 is fixedly connected between the symmetric workpiece clamping mechanisms 4.

[0021] As Figure 2 shown, sliding grooves 6 are respectively opened on the front and rear two side walls of the cross frame 2, and a plurality of positioning grooves 7 are also opened on the bottom surface of the cross frame 2 in a horizontal array manner. The sliding grooves 6 opened on the cross frame 2 are used to cooperate with the concave plate 18 to achieve sliding, and the plurality of positioning grooves 7 opened on the bottom surface of the cross frame 2 can play a role in positioning the concave plate 18;

[0022] As Figure 2 and Figure 4 shown, slide bars 19 are respectively fixedly installed on both sides of the inner wall of the concave plate 18, and the slide bars 19 are movably installed within the sliding grooves 6. A set of symmetric connection holes 20 are opened on the inner bottom surface of the concave plate 18. When adjusting the distance between the workpiece clamping mechanisms 4 according to the required length of the processed cross beam 5, the concave plate 18 can be moved left and right along the cross frame 2 through the slide bars 19. The slide bars 19 will slide within the sliding grooves 6 to enable the concave plate 18 to move, and the connection holes 20 opened on the concave plate 18 are used to cooperate with the connecting rod 23 to ensure that the connecting rod 23 can move up and down through the connection holes 20;

[0023] As Figure 4As shown in the figure, a limit block 22 corresponding to the positioning groove 7 is fixedly installed on the top surface of the movable plate 21, and a set of symmetric connecting rods 23 are fixedly installed on the bottom surface of the movable plate 21. The connecting rods 23 are inserted into the connecting holes 20, and the compression spring 24 is sleeved outside the connecting rods 23 and fixedly installed between the bottom surface of the movable plate 21 and the inner bottom surface of the concave plate 18. The bottom surfaces of the symmetric connecting rods 23 are also jointly fixedly installed with a handle 25. After manually pulling the handle 25, the movable plate 21 will be driven to move downward through the connecting rods 23, causing the compression spring 24 to retract, and the limit block 22 to move out of the current positioning groove 7. After maintaining the pulling force on the handle 25, the concave plate 18 can be moved, and the workpiece clamping mechanism 4 can be moved to a suitable position through the concave plate 18. After releasing the handle 25, the movable plate 21 can be pushed under the elastic stretching force of the compression spring 24, so that the limit block 22 enters the corresponding positioning groove 7, so as to position and fix the adjusted position of the workpiece clamping mechanism 4, so as to achieve the purpose of facilitating the rapid adjustment of the distance between the workpiece clamping mechanisms 4 according to the length of the cross beam 5;

[0024] As Figure 3 shown in the figure, the concave seat 8 is fixedly installed on the top surface of the concave plate 18, and a sliding port 9 is opened on the inner bottom surface of the concave seat 8. A threaded hole 10 is opened on the front end wall of the concave seat 8. The sliding port 9 opened on the inner bottom surface of the concave seat 8 is used to cooperate with the sliding of the slider 12, and the threaded hole 10 opened on the front end wall of the concave seat 8 enables the threaded rod 15 to perform threaded rotation operation in the threaded hole 10;

[0025] As Figure 3 shown in the figure, a slider 12 is fixedly installed on the bottom surface of the clamping plate 11, and the slider 12 is movably installed in the sliding port 9. A fixed cylinder 13 is fixedly installed on the front end wall of the clamping plate 11, and a bearing 14 is fixedly installed in the cylinder of the fixed cylinder 13. The threaded rod 15 is threadedly connected with the threaded hole 10, and a rotating rod 16 is fixedly installed at the rear end of the threaded rod 15. The rotating rod 16 is fixedly installed through the bearing 14, and a crank 17 is also fixedly installed at the front end of the threaded rod 15. After the distance between the workpiece clamping mechanisms 4 is adjusted by the adjusting positioning mechanism 3, the two end parts of the cross beam 5 can be respectively placed inside the symmetric concave seats 8, and the crank 17 can be manually rotated to drive the threaded rod 15 to perform threaded rotation operation in the threaded hole 10. After the rotating rod 16 rotates in the bearing 14 in the fixed cylinder 13, the clamping plate 11 will be pushed through the rotating rod 16, and the slider 12 on the bottom surface of the clamping plate 11 will slide in the sliding port 9 until the end part of the cross beam 5 is tightly pressed and fixed between the clamping plate 11 and the inner opposite wall surfaces of the concave seat 8, so as to achieve the purpose of quickly clamping and fixing the cross beam 5.

[0026] It should be noted that the present utility model is a detachable clamping tool used in the manufacturing process of subway car bodies. When processing the cross beam 5 during the manufacturing process of subway car bodies, the distance between the workpiece clamping mechanisms 4 can be quickly adjusted by adjusting the positioning mechanism 3 according to the length of the cross beam 5. During the adjustment, manually pull down the handle 25 at the bottom surface of the concave plate 18. The handle 25 will drive the connecting rod 23 to move downward through the connecting hole 20. The connecting rod 23 will drive the movable plate 21 to move downward synchronously within the concave plate 18, and force the compression spring 24 sleeved on the connecting rod 23 to perform a retraction operation. Continuously pull the handle 25 until the limit block 22 installed on the top surface of the movable plate 21 moves out of the positioning groove 7 opened on the bottom surface of the current cross frame 2. Keep the pulling force on the handle 25 and move the concave plate 18 in one side direction according to the length of the cross beam 5 through the handle 25. The concave plate 18 will move along the bottom surface of the cross frame 2, and the slide bars 19 installed on both sides of the inner wall of the concave plate 18 will slide within the chute 6 opened on the front and back walls of the cross frame 2 during the movement. Until after moving the workpiece clamping mechanism 4 to a suitable position through the concave plate 18, release the pulling force on the handle 25. The compression spring 24 will perform an elastic recovery and stretching operation, and move the movable plate 21 upward, and the connecting rod 23 will move upward through the connecting hole 20 until the limit block 22 installed on the top surface of the movable plate 21 is inserted into the corresponding positioning groove 7 opened on the bottom surface of the cross frame 2, so as to achieve the purpose of quickly adjusting, positioning and fixing the distance between the workpiece clamping mechanisms 4 according to the length of the cross beam 5. After the workpiece clamping mechanism 4 is adjusted through the positioning mechanism 3, both ends of the cross beam 5 are respectively placed in the concave seats 8 installed on the top surface of the concave plate 18, and turn the crank 17 to perform a threaded rotation operation of the threaded rod 15 within the threaded hole 10 opened on the front end wall of the concave seat 8. And the threaded rod 15 will drive the rotating rod 16 to rotate within the bearing 14 in the fixed cylinder 13 installed on the front end wall of the clamping plate 11. And during the continuous turning of the crank 17, the threaded rod 15 will push the clamping plate 11 through the rotating rod 16. The slider 12 installed on the bottom surface of the clamping plate 11 will slide within the sliding opening 9 opened on the inner bottom surface of the concave seat 8 until both ends of the cross beam 5 are clamped and fixed between the inner opposite walls of the clamping plate 11 and the concave seat 8 and the crank 17 can no longer be rotated, then the cross beam 5 can be quickly clamped and fixed. And after the processing of the cross beam 5 is completed, reverse-rotate the crank 17 to move the clamping plate 11 forward, and then the cross beam 5 can be quickly disassembled, thus achieving the purpose of facilitating the quick clamping and fixing of cross beams 5 with different lengths during the processing of the cross beam 5. At the same time, through the workpiece clamping mechanism 4, the cross beam 5 can be quickly disassembled after processing, and the processing efficiency of the cross beam 5 during the manufacturing process of subway car bodies is improved.

[0027] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, various improvements can be made thereto and components therein can be replaced with equivalents, or some technical features therein can be equivalently replaced, without departing from the scope of the present utility model. All such modifications and replacements should be included within the protection scope of the present utility model as long as they are within the spirit and principles of the present utility model.

Claims

1. A detachable clamping tool used in the manufacturing process of subway car bodies, comprising a support (1) and a cross beam (5). A cross frame (2) is fixedly connected between the top surfaces of the two supports (1). It is characterized in that: A set of symmetric adjusting and positioning mechanisms (3) are provided on the cross frame (2), and the adjusting and positioning mechanism (3) includes a concave plate (18), a movable plate (21), a limit block (22) and a compression spring (24). The concave plate (18) is movably connected to the cross frame (2) through sliding strips (19) on both sides of the inner wall. The top surface of the movable plate (21) is fixedly connected with a limit block (22), and the movable plate (21) is movably connected inside the concave plate (18) through a connecting rod (23) on the bottom surface. The compression spring (24) is sleeved outside the connecting rod (23). A workpiece clamping mechanism (4) is further provided on the top surface of the concave plate (18), and the workpiece clamping mechanism (4) includes a concave seat (8), a clamping plate (11) and a threaded rod (15). The concave seat (8) is fixedly connected to the top surface of the concave plate (18), and the clamping plate (11) is movably connected inside the concave seat (8) through a slider (12) on the bottom surface. The threaded rod (15) is movably connected in a threaded hole (10) opened on the front end wall of the concave seat (8), and the threaded rod (15) is further movably connected to the clamping plate (11) through a rotating rod (16) at the rear end. A cross beam (5) is fixedly connected between the symmetric workpiece clamping mechanisms (4).

2. The detachable clamping tool used in the manufacturing process of subway car bodies according to claim 1, wherein: Chute grooves (6) are respectively opened on the front and rear two side walls of the cross frame (2), and a plurality of positioning grooves (7) are further opened on the bottom surface of the cross frame (2) in a horizontal array manner.

3. The detachable clamping tool used in the manufacturing process of subway car bodies according to claim 2, wherein: Sliding strips (19) are respectively fixedly installed on both sides of the inner wall of the concave plate (18), and the sliding strips (19) are movably installed in the chute grooves (6). A set of symmetric connecting holes (20) are opened on the inner bottom surface of the concave plate (18).

4. A detachable clamping tool used in the manufacturing process of subway car bodies according to claim 3, characterized in that: A limit block (22) corresponding to the positioning groove (7) is fixedly installed on the top surface of the movable plate (21), and a set of symmetric connecting rods (23) are fixedly installed on the bottom surface of the movable plate (21). The connecting rods (23) are inserted and installed in the connecting holes (20), and the compression spring (24) is sleeved outside the connecting rod (23) and fixedly installed between the bottom surface of the movable plate (21) and the inner bottom surface of the concave plate (18). The bottom surfaces of the symmetric connecting rods (23) are also jointly fixedly installed with a handle (25).

5. The detachable clamping tool used in the manufacturing process of subway car bodies according to claim 4, characterized in that: The concave seat (8) is fixedly installed on the top surface of the concave plate (18), and a sliding opening (9) is opened on the inner bottom surface of the concave seat (8). A threaded hole (10) is opened on the front end wall of the concave seat (8).

6. The detachable clamping tool used in the manufacturing process of subway car bodies according to claim 5, characterized in that: A slider (12) is fixedly installed on the bottom surface of the clamping plate (11), and the slider (12) is movably installed in the sliding opening (9). A fixed cylinder (13) is fixedly installed on the front end wall of the clamping plate (11), and a bearing (14) is fixedly installed inside the cylinder of the fixed cylinder (13). The threaded rod (15) is in threaded connection with the threaded hole (10), and a rotating rod (16) is fixedly installed at the rear end of the threaded rod (15). The rotating rod (16) is inserted and fixedly installed together with the bearing (14). A rocking handle (17) is further fixedly installed at the front end of the threaded rod (15).

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