Gripping device

Abstract

The utility model relates to the technical field of passenger and freight trains, in particular to a grabbing device which is arranged on a linear guide rail and used for grabbing train brake valves in sequence. The two clamping units are symmetrically arranged on the mounting plate and used for clamping train brake valves of multiple specifications; the first air cylinder is arranged on the mounting plate and is used for driving the clamping unit on one side to linearly move along the Z axis; and the transmission assembly is arranged on the mounting plate and is used for linking the two clamping units to move towards each other or move away from each other. Under the driving of one acting force, the two clamping units can be controlled to move towards each other or away from each other and move synchronously through the transmission assembly, the linkage performance of the two clamping units in the grabbing device can be improved, the grabbing reliability is guaranteed, a manual mode is replaced, and the automation degree is high; and the outer shape of the train brake valve can be attached, and the grabbing reliability is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of passenger and freight train technology, specifically to a gripping device. Background Technology

[0002] Brake valves for passenger and freight trains or railway freight cars are core components of railway vehicle braking systems. These valves have complex structures; their main body is a ductile iron part with intricate cavities and air passages, internally press-fitted with a copper valve sleeve, making them heavy. Their production and quality control directly affect the operational safety of rail transit vehicles. Currently, a common method for handling these valves is by grabbing and transferring them.

[0003] Currently, the production and quality inspection of large quantities of train brake valves are often carried out using assembly lines. In actual processing, it is difficult to achieve complete automation, and manual intervention is required to some extent, resulting in generally low production efficiency. Furthermore, existing train brake valve gripping devices may wobble during the gripping process due to loose fit, thus reducing the practicality of the gripping device.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings and provide a gripping device.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a gripping device, installed on a linear guide rail, for sequentially gripping train brake valves, the gripping device comprising:

[0007] Mounting plate;

[0008] Two clamping units are symmetrically arranged on the mounting plate for clamping train brake valves of various specifications.

[0009] The first cylinder is mounted on the mounting plate and is used to drive the clamping unit on one side to move linearly along the Z-axis.

[0010] A transmission assembly is mounted on the mounting plate and is used to link the two clamping units to move toward or away from each other.

[0011] Furthermore, the clamping unit includes an outer support plate disposed on the upper side of the mounting plate and an elastic part disposed on the inner side of the outer support plate and elastically contacting the surface of the train brake valve. A T-shaped insert is disposed on the end face of the elastic part near the outer support plate, and a T-shaped groove adapted to the T-shaped insert is disposed on the end face of the outer support plate.

[0012] One side of the T-groove is provided with a slot for inserting the elastic part along the X-axis direction.

[0013] Furthermore, the transmission assembly includes a first L-shaped rack and a second L-shaped rack respectively disposed on the top of the outer support plates on both sides and mounted opposite each other. The mounting plate is provided with gears that are respectively connected to the meshing surfaces of the first L-shaped rack and the second L-shaped rack in a transmission manner.

[0014] Furthermore, the mounting plate is provided with spaced fixtures for moving along the X-axis on the linear guide rail.

[0015] Furthermore, the mounting bracket has two guide rods symmetrically arranged on the horizontal plate structure parallel to the mounting plate to support the movement of the mounting plate along the Y-axis.

[0016] Furthermore, a second cylinder is provided between the two guide rods and on the horizontal plate structure to drive the mounting plate to move along the Y-axis.

[0017] Furthermore, the T-slot is fitted with a shaped plate for clamping the train brake valve.

[0018] Compared with the prior art, the present invention has the following beneficial effects: Through the clamping unit, the first cylinder, and the transmission assembly, the present invention can control the two clamping units to move towards or away from each other under the drive of a single force, moving synchronously. This improves the linkage between the two clamping units in the gripping device, ensuring the reliability of gripping, replacing manual methods, and achieving a high degree of automation. Furthermore, the design of the elastic part allows it to conform to the external shape of the train brake valve, further ensuring the reliability of gripping and improving its practicality. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a perspective view of the overall structure of an embodiment of the present utility model.

[0021] Figure 2 This is a perspective view of the overall structure of an embodiment of the present utility model.

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a perspective view of the elastic part of an embodiment of the present invention.

[0024] In the diagram: 1. Mounting plate; 2. Clamping unit; 21. Outer support plate; 22. Elastic part; 221. T-shaped insert; 3. First cylinder; 4. Transmission assembly; 41. First L-shaped rack; 42. Second L-shaped rack; 43. Gear; 5. Fixing frame; 6. Guide rod; 7. Second cylinder. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] like Figure 1-4 As shown, the gripping device of this utility model is mounted on a linear guide rail for sequentially gripping train brake valves. The gripping device includes:

[0029] Mounting plate 1;

[0030] Two clamping units 2 are symmetrically arranged on the mounting plate 1 for clamping train brake valves of various specifications.

[0031] The first cylinder 3 is mounted on the mounting plate 1 and is used to drive the clamping unit 2 on one side to move linearly along the Z-axis.

[0032] The transmission component 4 is mounted on the mounting plate 1 and is used to link the two clamping units 2 to move towards or away from each other.

[0033] In specific implementation, by symmetrically installing two clamping units 2 on both sides of the mounting plate 1, and by bolting one side clamping unit 2 to the end of the piston rod of the first cylinder 3 which is bolted on the mounting plate 1, compressed air is input into the air port of the first cylinder 3 to push the piston to move or move in the opposite direction, so that the piston moves in one direction or returns in another direction, thereby realizing the clamping or release of the train brake valve below the mounting plate 1.

[0034] Furthermore, the transmission component 4 on the mounting plate 1, which links the movement of the clamping units 2 on both sides, can synchronously drive the two clamping units 2 to move, ensuring the synchronicity of the movement of the two clamping units 2 and ensuring the centering and gripping of the train brake valve, thus providing good gripping reliability.

[0035] It should be noted that the first cylinder 3 is a double-acting cylinder, which uses two air ports to act on the two chambers of the cylinder respectively.

[0036] In one embodiment, the clamping unit 2 includes an outer support plate 21 disposed on the upper side of the mounting plate 1 and an elastic part 22 disposed on the inner side of the outer support plate 21 and elastically contacting the surface of the train brake valve. A T-shaped insert 221 is disposed on the end face of the elastic part 22 near the outer support plate 21, and a T-shaped groove adapted to the T-shaped insert 221 is disposed on the end face of the outer support plate 21.

[0037] One side of the T-slot is provided with a slot for inserting the elastic part 22 along the X-axis direction. With this design, by using two symmetrically installed outer support plates 21 on the side of the mounting plate 1 and the elastic part 22 inserted into the inner side of the two outer support plates 21 that are close to each other, soft contact of the train brake valve can be ensured during the clamping and gripping process, and the impact of the outer support plates 21 on the train brake valve during the gripping process can be reduced.

[0038] Furthermore, the T-shaped insert 221 integrally formed on the outer side of the elastic part 22 and the T-shaped groove machined on the outer support plate 21 are compatible for insertion and connection, which can facilitate the installation and removal of the elastic part 22 on the outer support plate 21, simplifying the maintenance steps and making the operation simple.

[0039] It should be noted that the elastic part 22 adopts an airbag structure.

[0040] It should be noted that the slot opened on one side of the T-slot facilitates the insertion of the elastic part 22 along the X-axis, ensuring the stability after assembly.

[0041] In one embodiment, the transmission assembly 4 includes a first L-shaped rack 41 and a second L-shaped rack 42 respectively disposed on the top of the outer support plates 21 on both sides and mounted vertically opposite each other. The mounting plate 1 is provided with gears 43 that are respectively connected vertically to the meshing surfaces of the first L-shaped rack 41 and the second L-shaped rack 42. With this design, the first L-shaped rack 41 and the second L-shaped rack 42 are welded vertically to the top of the outer support plates 21 on both sides, and the gears 43 meshing between the first L-shaped rack 41 and the second L-shaped rack 42. When the first L-shaped rack 41, welded to one side of the outer support plate 21, is subjected to the horizontal force of the first cylinder 3, it will drive the first L-shaped rack 41 to move linearly. The force transmitted by the gears 43 meshing on the lower side of the first L-shaped rack 41 drives the second L-shaped rack 42 and the other outer support plate 21 welded to the outer ends of the second L-shaped rack 42 to move closer to or away from the aforementioned outer support plate 21, thus achieving synchronous movement of the two symmetrically mounted outer support plates 21.

[0042] In one embodiment, the mounting plate 1 is provided with spaced-apart brackets 5 for moving along the X-axis on a linear guide rail. This design allows the brackets 5, which are slidably connected to the linear guide rail, to move along the X-axis, thus enabling the transfer of the gripped train brake valve.

[0043] In one embodiment, two guide rods 6 are symmetrically arranged on the fixing frame 5, parallel to the horizontal plate structure of the mounting plate 1, to support the movement of the mounting plate 1 along the Y-axis. This design, by using two guide rods 6 symmetrically installed on the fixing frame 5 parallel to the horizontal plate structure of the mounting plate 1 for movement along the Y-axis, enables the mounting plate 1 and the structure mounted on the mounting plate 1 to move along the Y-axis, thus realizing the up-and-down movement operation of the train brake valve.

[0044] In one embodiment, a second cylinder 7 is provided between the two guide rods 6 and on the horizontal plate structure to drive the mounting plate 1 to move along the Y-axis. This design allows for the output of external force in the Y-axis direction by inputting compressed air into one port of the second cylinder 7 mounted on the fixing frame 5.

[0045] In one embodiment, a shaped plate for clamping the train brake valve is adapted to be installed inside the T-slot. This design allows the shaped plate, which is adapted to be installed inside the T-slot, to conform to the external shape of the train brake valve, further ensuring the reliability of the train brake valve gripping.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A gripping device, mounted on a linear guide rail, for sequentially gripping train brake valves, characterized in that, The grasping device includes: Mounting plate (1); Two clamping units (2) are symmetrically arranged on the mounting plate (1) for clamping train brake valves of various specifications; The first cylinder (3) is mounted on the mounting plate (1) and is used to drive the clamping unit (2) on one side to move linearly along the Z-axis; The transmission assembly (4) is mounted on the mounting plate (1) and is used to link the two clamping units (2) to move toward each other or apart.

2. The gripping device according to claim 1, characterized in that: The clamping unit (2) includes an outer support plate (21) disposed on the upper side of the mounting plate (1) and an elastic part (22) disposed on the inner side of the outer support plate (21) and elastically contacting the surface of the train brake valve. A T-shaped insert (221) is provided on the end face of the elastic part (22) near the outer support plate (21), and a T-shaped groove adapted to the T-shaped insert (221) is provided on the end face of the outer support plate (21). One side of the T-groove is provided with a slot for inserting the elastic part (22) along the X-axis direction.

3. The gripping device according to claim 2, characterized in that: The transmission assembly (4) includes a first L-shaped rack (41) and a second L-shaped rack (42) respectively mounted on the top of the outer support plates (21) on both sides and installed opposite each other. The mounting plate (1) is provided with gears (43) that are connected to the meshing surfaces of the first L-shaped rack (41) and the second L-shaped rack (42) respectively.

4. The gripping device according to claim 1, characterized in that: The mounting plate (1) is provided with fixed brackets (5) for moving along the X-axis on the linear guide rail.

5. The gripping device according to claim 4, characterized in that: The fixing frame (5) has two guide rods (6) symmetrically arranged on the horizontal plate structure parallel to the mounting plate (1) to support the movement of the mounting plate (1) along the Y-axis.

6. The gripping device according to claim 5, characterized in that: A second cylinder (7) is provided between the two guide rods (6) and on the horizontal plate structure to drive the mounting plate (1) to move along the Y-axis direction.

7. The gripping device according to claim 2, characterized in that: The T-slot is fitted with a shaped plate for clamping the train brake valve.

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