Clamping and machining device for special-shaped edge beam of metro vehicle
By combining the design of the limiting frame and the side clamping mechanism, and utilizing wear-resistant expanding rubber and an electric control system, the instability problem of the processing device for irregular side beams of subway vehicles during clamping was solved, and a more stable clamping effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-03
AI Technical Summary
The existing processing equipment for irregular side beams of subway vehicles has a small contact area, which leads to unstable clamping and easy shaking.
It adopts a limiting frame and a side clamping mechanism. The limiting frame is fixed by an auxiliary mounting base, and the side clamping mechanism uses wear-resistant expansion rubber to fill the groove area and controls the clamping force through an electric telescopic cylinder and an air supply connection pipe.
It achieves stable clamping of irregularly shaped side beam workpieces for subway vehicles, avoiding shaking and improving the stability and safety of processing.
Smart Images

Figure CN224073882U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of special-shaped side beam processing technology for subway vehicles, specifically a clamping and processing device for special-shaped side beams of subway vehicles. Background Technology
[0002] Rail beams play a crucial role in urban rail transit systems, such as light rail and subways. They bear the vehicle load and serve as the running track, hence the name "rail beam." For the clamping and processing of irregularly shaped side beams in subway vehicles, a special clamping and processing device for subway vehicle side beams is required.
[0003] The existing Chinese patent CN217096717U, disclosed on August 2, 2022, is a fixture for processing steel structure beams. It is convenient for clamping steel structure beams of different widths and heights, and has low limitations in use and good practicality. It includes a connecting seat and a steel structure beam body. The connecting seat has two adjustment grooves inside, and a sliding rod is arranged horizontally in the adjustment groove. An adjustment block is slidably connected to the outside of the sliding rod. One end of each of the two adjustment blocks is fixedly connected to the inner side wall of the adjustment groove by a first spring. An adjustment rod is fixedly connected to the other end of the two adjustment blocks. A connecting column is fixedly connected to the bottom end of the adjustment block. A strip block is fixedly connected to the bottom end of the connecting column through a strip hole. A strip groove is opened inside the strip groove, and a threaded rod is rotatably arranged in the strip groove. A threaded block is threadedly connected to the outside of the threaded rod.
[0004] However, when the above-mentioned device clamps the irregular side beams of the subway vehicle, there are concave areas on both sides. Positioning is achieved by clamping, which results in a small contact area during clamping, making it prone to shaking. Utility Model Content
[0005] The purpose of this application is to provide a clamping and processing device for irregular side beams of subway vehicles, which addresses the problem that the aforementioned device has concave areas on both sides of the irregular side beams and is positioned by clamping, resulting in a small contact area and easy shaking during clamping.
[0006] The technical solution adopted in this application is as follows: A clamping and processing device for irregular side beams of subway vehicles, including a limiting frame and an auxiliary mounting base. The auxiliary mounting base is fixedly mounted on the lower end of the limiting frame. An irregular side beam workpiece of a subway vehicle is placed inside the upper end of the limiting frame. Side clamping mechanisms are installed on both sides of the irregular side beam workpiece of the subway vehicle on the limiting frame. The side clamping mechanisms and the auxiliary mounting base are electrically connected to an external control box through a connecting line.
[0007] By adopting the above technical solution, the limiting frame can be installed in the designated position through the auxiliary mounting base. The subway vehicle irregular side beam workpiece can be effectively limited and placed through the upper inner area of the limiting frame. When the side clamping mechanism extends, it can effectively abut and clamp the subway vehicle irregular side beam workpiece inside the limiting frame for placement. Furthermore, the wear-resistant expansion rubber of the side clamping mechanism can effectively abut when it expands, thereby filling the abutment force in the groove area of the subway vehicle irregular side beam workpiece. In this way, the subway vehicle irregular side beam workpiece is more stable when placed.
[0008] In a preferred embodiment, the auxiliary mounting base includes a four-hole mounting base plate, screw lugs, an auxiliary roller, a concave frame, and a first electric telescopic cylinder. Screw lugs are fixed to the upper two sides of the four-hole mounting base plate. The first electric telescopic cylinder is symmetrically mounted on the upper two sides of the four-hole mounting base plate. The telescopic rod end of the first electric telescopic cylinder is fixed to the concave frame. The auxiliary roller is rotatably mounted on the upper inner side of the concave frame. The four-hole mounting base plate is mounted and connected to the limiting frame through screw lugs.
[0009] By adopting the above technical solution and using the auxiliary installation base structure, the device can be installed and placed accordingly, and it can also play an auxiliary adjustment role.
[0010] In a preferred embodiment, the side clamping mechanism includes a hollow clamping plate, a second electric telescopic cylinder, an air supply connection pipe, and wear-resistant expansion rubber. The wear-resistant expansion rubber is installed in the middle of the front end of the hollow clamping plate, the air supply connection pipe is installed at the upper end of the hollow clamping plate, and the second electric telescopic cylinder is installed at the rear end of the hollow clamping plate. The second electric telescopic cylinder is connected to the limiting frame by screws.
[0011] By adopting the above technical solution and using the side clamping mechanism structure, it is possible to achieve side clamping and fixation as well as expansion-contact clamping.
[0012] In a preferred embodiment, the limiting frame includes a frame shell, a roller telescopic groove, and a workpiece placement cavity. The workpiece placement cavity is formed on the inner side of the upper end of the frame shell, and the roller telescopic groove is formed on the inner side of the workpiece placement cavity at the bottom end of the frame shell. The frame shell is mounted on an auxiliary mounting base.
[0013] By adopting the above technical solution and using a limiting frame structure, it is possible to place and use the device in a limited position.
[0014] In a preferred embodiment, four side clamping mechanisms are provided, and the side clamping mechanisms are symmetrically installed on both sides of the upper end of the limiting frame.
[0015] By adopting the above technical solution, the clamping of the four side clamping mechanisms allows for stable placement and clamping on the limiting frame.
[0016] In a preferred embodiment, the auxiliary roller is sleeved on the inner middle of the limiting frame.
[0017] By adopting the above technical solution and using the limiting frame structure, the auxiliary roller can be limited in its movement.
[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0019] 1. In this application, when the side clamping mechanism is extended, it can effectively resist and clamp the subway vehicle irregular side beam workpiece inside the limiting frame for placement. Furthermore, when the wear-resistant expansion rubber of the side clamping mechanism expands, it can effectively resist and fill the resistance force in the groove area of the subway vehicle irregular side beam workpiece, thus making the subway vehicle irregular side beam workpiece more stable when placed.
[0020] 2. In this application, an auxiliary mounting base structure is provided to provide adjustment assistance. The four-hole mounting base plate of the auxiliary mounting base is connected to the limiting frame by screw lugs, allowing the four-hole mounting base plate to be installed accordingly. The upper ends of the four-hole mounting base plate are symmetrically equipped with first electric telescopic cylinders. The telescopic rod end of the first electric telescopic cylinder is fixed to a concave frame. When the telescopic rod of the first electric telescopic cylinder extends or retracts, it can drive the concave frame to rise or fall. An auxiliary roller is rotatably installed on the upper inner side of the concave frame. When the concave frame rises or falls, it can drive the auxiliary roller to rise or fall. When the auxiliary roller is exposed on the inner wall of the limiting frame, it can contact the special-shaped side beam workpiece of the subway vehicle, allowing the special-shaped side beam workpiece of the subway vehicle to roll and adjust its position, thus providing assistance in the adjustment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the three-dimensional tissue structure of this application;
[0022] Figure 2 This is a three-dimensional structural diagram of the present application;
[0023] Figure 3 This is a schematic diagram of the auxiliary mounting base structure of this application;
[0024] Figure 4 This is a schematic diagram of the side clamping mechanism structure of this application;
[0025] Figure 5 This is a schematic diagram of the limiting frame structure of this application.
[0026] The markings in the diagram are: 1. Side clamping mechanism; 11. Hollow clamping plate; 12. Second electric telescopic cylinder; 13. Air supply connection pipe; 14. Wear-resistant expanding rubber; 2. Irregular side beam workpiece of subway vehicle; 3. Limiting frame; 31. Frame shell; 32. Roller telescopic groove; 33. Workpiece placement cavity; 4. Auxiliary mounting base; 5. Four-hole mounting base plate; 51. Screw ear plate; 52. Auxiliary roller; 53. Concave frame; 54. First electric telescopic cylinder. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] Example 1
[0029] like Figure 1 , Figure 4 and Figure 5 As shown, a clamping and processing device for a subway vehicle irregular side beam includes a limiting frame 3 and an auxiliary mounting base 4. The auxiliary mounting base 4 is fixedly mounted on the lower end of the limiting frame 3. The limiting frame 3 can be installed in a designated position through the auxiliary mounting base 4. The subway vehicle irregular side beam workpiece 2 is placed inside the upper end of the limiting frame 3. The subway vehicle irregular side beam workpiece 2 can be effectively limited and placed through the upper end of the limiting frame 3. Side clamping mechanisms 1 are installed on both sides of the subway vehicle irregular side beam workpiece 2 on the limiting frame 3. When the side clamping mechanisms 1 are extended, they can effectively abut and clamp the subway vehicle irregular side beam workpiece 2 inside the limiting frame 3 for placement. The side clamping mechanisms 1 and the auxiliary mounting base 4 are electrically connected to an external control box through a connecting line, so that they can be controlled and used through the external control box.
[0030] There are four side clamping mechanisms 1 installed, and the side clamping mechanisms 1 are symmetrically installed on both sides of the upper end of the limiting frame 3. Thus, the side clamping and positioning by the four side clamping mechanisms 1 makes the clamping and positioning more stable.
[0031] The limiting frame 3 includes a frame shell 31, a roller telescopic groove 32, and a workpiece placement cavity 33. The upper inner side of the frame shell 31 is provided with a workpiece placement cavity 33, so that the subway vehicle irregular side beam workpiece 2 can be placed accordingly. The inner side of the workpiece placement cavity 33 is provided with a roller telescopic groove 32 at the bottom end of the frame shell 31, so that the auxiliary roller 52 of the auxiliary mounting base 4 and the concave frame 53 can be raised and lowered accordingly. The frame shell 31 is installed and connected to the auxiliary mounting base 4, so that they can be effectively installed and connected accordingly.
[0032] The side clamping mechanism 1 includes a hollow clamping plate 11, a second electric telescopic cylinder 12, a gas supply connecting pipe 13, and wear-resistant expanding rubber 14. The second electric telescopic cylinder 12 is connected to the limiting frame 3 by screws, so that the second electric telescopic cylinder 12 can be installed accordingly. The wear-resistant expanding rubber 14 is installed in the middle of the front end of the hollow clamping plate 11, and the gas supply connecting pipe 13 is installed at the upper end of the hollow clamping plate 11. The gas supply connecting pipe 13 is connected to an external vacuum pump, so that when the external vacuum pump delivers gas, it can deliver gas to the hollow clamping plate 11 through the gas supply connecting pipe 13. The gas inside the hollow clamping plate 11 makes the wear-resistant expanding rubber 14... The wear-resistant expanding rubber 14 expands, and when it expands, it can effectively fill the groove areas on both sides of the subway vehicle irregular side beam workpiece 2, thereby expanding and resisting. The rear end of the hollow clamping plate 11 is equipped with a second electric telescopic cylinder 12. When the telescopic rod of the second electric telescopic cylinder 12 extends and retracts, it can drive the hollow clamping plate 11 to move. When extended, the hollow clamping plate 11 can effectively resist the outside of the subway vehicle irregular side beam workpiece 2. Thus, through the resisting and clamping of the hollow clamping plate 11 and the expanding and resisting and clamping of the wear-resistant expanding rubber 14, the subway vehicle irregular side beam workpiece 2 is more stable when placed.
[0033] Example 1
[0034] like Figure 1 , Figure 2 and Figure 5As shown, the auxiliary mounting base 4 includes a four-hole mounting base plate 5, screw ear plates 51, auxiliary roller body 52, concave frame 53, and a first electric telescopic cylinder 54. Screw ear plates 51 are fixed to the upper two sides of the four-hole mounting base plate 5. The four-hole mounting base plate 5 is mounted and connected to the limiting frame 3 through the screw ear plates 51, so that the four-hole mounting base plate 5 can be installed and placed accordingly. The first electric telescopic cylinder 54 is symmetrically installed on the upper two sides of the four-hole mounting base plate 5. The telescopic rod end of the first electric telescopic cylinder 54 is fixed to the concave frame 53. When the telescopic rod of the first electric telescopic cylinder 54 is extended or retracted, it can drive the concave frame 53 to rise or fall. The auxiliary roller body 52 is rotatably installed on the upper inner side of the concave frame 53. When the concave frame 53 is raised or lowered, it can drive the auxiliary roller body 52 to rise or fall. When the auxiliary roller body 52 is exposed on the inner wall of the limiting frame 3, it can contact the subway vehicle special-shaped side beam workpiece 2, so that the subway vehicle special-shaped side beam workpiece 2 can be rolled to adjust its position, thereby playing an auxiliary role in the adjustment.
[0035] The auxiliary roller 52 is sleeved on the inner middle of the limiting frame 3, so that it can assist in rolling.
[0036] The implementation principle of the subway vehicle irregular side beam clamping and processing device of this application is as follows: In use, the limiting frame 3 can be installed in the designated position through the auxiliary mounting base 4. The subway vehicle irregular side beam workpiece 2 can be effectively limited and placed through the upper inner area of the limiting frame 3. When the side clamping mechanism 1 is extended, it can effectively abut and clamp the subway vehicle irregular side beam workpiece 2 inside the limiting frame 3 for placement. In addition, the wear-resistant expansion rubber 14 of the side clamping mechanism 1 can effectively abut when it expands, thereby filling the abutment force in the groove area of the subway vehicle irregular side beam workpiece 2. In this way, the subway vehicle irregular side beam workpiece 2 is more stable when placed. The side clamping mechanism 1 and the auxiliary mounting base 4 are electrically connected to the external control box through the connecting line, so that they can be controlled and used through the external control box.
[0037] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A clamping and processing device for irregular side beams of subway vehicles, comprising a limiting frame (3) and an auxiliary mounting base (4), characterized in that: The auxiliary mounting base (4) is fixed on the lower end of the limiting frame (3). The upper end of the limiting frame (3) contains a subway vehicle irregular side beam workpiece (2). The two sides of the subway vehicle irregular side beam workpiece (2) are mounted on the limiting frame (3) with side clamping mechanisms (1). The side clamping mechanisms (1) and the auxiliary mounting base (4) are electrically connected to the external control box through a connecting line.
2. The clamping and processing device for irregular side beams of subway vehicles as described in claim 1, characterized in that: The auxiliary mounting base (4) includes a four-hole mounting base plate (5), screw ear plates (51), auxiliary rollers (52), a concave frame (53), and a first electric telescopic cylinder (54). Screw ear plates (51) are fixed to the upper two sides of the four-hole mounting base plate (5). The first electric telescopic cylinder (54) is symmetrically installed on the upper two sides of the four-hole mounting base plate (5). The telescopic rod end of the first electric telescopic cylinder (54) is fixed to the concave frame (53). The auxiliary roller (52) is rotatably installed on the upper inner side of the concave frame (53). The four-hole mounting base plate (5) is installed and connected to the limiting frame (3) through screw ear plates (51).
3. The clamping and processing device for irregular side beams of subway vehicles as described in claim 1, characterized in that: The side clamping mechanism (1) includes a hollow clamping plate (11), a second electric telescopic cylinder (12), an air supply connection pipe (13), and a wear-resistant expansion rubber (14). The wear-resistant expansion rubber (14) is installed in the middle of the front end of the hollow clamping plate (11), the air supply connection pipe (13) is installed at the upper end of the hollow clamping plate (11), and the second electric telescopic cylinder (12) is installed at the rear end of the hollow clamping plate (11). The second electric telescopic cylinder (12) is connected to the limiting frame (3) by screws.
4. The clamping and processing device for irregular side beams of subway vehicles as described in claim 1, characterized in that: The limiting frame (3) includes a frame shell (31), a roller telescopic groove (32) and a workpiece placement cavity (33). The upper inner side of the frame shell (31) is provided with a workpiece placement cavity (33), and the inner side of the workpiece placement cavity (33) is provided with a roller telescopic groove (32) at the bottom end of the frame shell (31). The frame shell (31) is installed and connected to the auxiliary mounting base (4).
5. The clamping and processing device for irregular side beams of subway vehicles as described in claim 1, characterized in that: There are four side clamping mechanisms (1), and the side clamping mechanisms (1) are symmetrically installed on the upper two sides of the limiting frame (3).
6. The clamping and processing device for irregular side beams of subway vehicles as described in claim 2, characterized in that: The auxiliary roller (52) is sleeved on the inner middle of the limiting frame (3).
Citation Information
Patent Citations
Clamp for steel structure beam machining
CN217096717U