An intercity vehicle rotating arm node seat group clamping mechanism and welding device

Abstract

The utility model discloses an intercity vehicle turning arm node seat group clamping mechanism and welding device relates to vehicle parts machining technical field, including mechanical arm, the quantity of mechanical arm is three, still includes clamping piece, the quantity of clamping piece is four, four clamping piece two two opposition and respectively install to two mechanical arms on, wherein, clamping piece includes two half cylinders, four half round boxes and four groups of movable reinforcing strips, two adjacent half round boxes are slidably connected to the inside of half cylinder, and one end of the reinforcing strip extends to the outside of the half round box. The utility model has the advantages that: adopting adjustable clamp design, it is convenient to effectively adhere to clamping according to work piece size and clamping point, guarantee clamping accuracy and stability, and in the clamping process, add many point supplementary reinforcement points, disperse clamping force, reduce the work piece and produce deformation damage phenomenon because local stress is too big.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts processing technology, and in particular to a clamping mechanism and welding device for a swing arm node assembly of an intercity vehicle. Background Technology

[0002] The vehicle boom joint assembly is a key component in the bogie system of a rail vehicle. It is mainly used to connect the axle box boom and the bogie frame, and plays a role in transmitting loads and ensuring the stability of vehicle operation. When connecting the axle box boom and the bogie frame, clamping and welding are required.

[0003] In existing technologies, the workpiece is directly clamped and fixed by a fixture on a robotic arm before subsequent welding operations. While this achieves the desired clamping effect, it has several drawbacks in actual use: the fixed clamping surface makes it difficult to properly fit the clamping area according to the workpiece size and clamping point, affecting clamping accuracy and stability. Furthermore, the concentrated clamping force between the fixture and the workpiece during clamping can easily lead to deformation and damage to the workpiece due to excessive local stress. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A clamping mechanism for a swing arm node assembly of an intercity vehicle includes three robotic arms and four clamping components, which are mounted on two robotic arms in pairs. Each clamping component includes two semi-cylinders, four semi-circular boxes, and four sets of movable reinforcing bars. Two adjacent semi-circular boxes are slidably connected to the inner side of the semi-cylinders, and one end of each reinforcing bar extends to the outer side of the semi-circular box.

[0006] As a preferred embodiment of the intercity vehicle swing arm node seat assembly clamping mechanism of this utility model, the clamping member further includes a base plate, the base plate is mounted on the robotic arm, and the semi-cylinder is slidably connected to the base plate.

[0007] As a preferred embodiment of the intercity vehicle boom node seat clamping mechanism of this utility model, a set of guide tubes is installed inside the semi-circular box, and a piston disc that slidably connects to the reinforcing strip is slidably connected inside the guide tubes.

[0008] As a preferred embodiment of the intercity vehicle swing arm node seat clamping mechanism of this utility model, an air guide box is provided on the outer side of the base plate, a three-way pipe is provided on the outer side of the air guide box, and a branch pipe is provided between the three-way pipe and the semi-circular box.

[0009] As a preferred embodiment of the intercity vehicle boom node seat clamping mechanism of this utility model, wherein: an electric push rod is installed inside the air guide box, and a piston plate that is slidably connected to the inside of the air guide box is installed at the end of the electric push rod.

[0010] As a preferred embodiment of the intercity vehicle boom node clamping mechanism of this utility model, an exhaust pipe is provided on the air guide box, and a solenoid valve is provided on the outside of the exhaust pipe.

[0011] As a preferred embodiment of the intercity vehicle boom node seat clamping mechanism of this utility model, a spring is sleeved on the outer side of the reinforcing strip, one end of the spring is installed on the outer side of the piston disc, and the other end of the spring is installed on the inner wall of the guide tube.

[0012] In a preferred embodiment of the intercity vehicle boom node clamping mechanism of this utility model, the branch pipe is made of plastic flexible tubing.

[0013] As a preferred embodiment of the intercity vehicle swing arm node seat assembly clamping mechanism of this utility model, wherein: an arc-shaped slider is provided on the outer side of the semi-circular box, and two arc-shaped grooves adapted to the arc-shaped slider are opened inside the semi-cylinder.

[0014] This utility model also provides a welding device for intercity vehicle boom node seat assembly, including the intercity vehicle boom node seat assembly clamping mechanism as described above, and also includes a base and a welding torch, wherein the welding torch is mounted on one of the robotic arms, and the robotic arm is mounted on the base.

[0015] The beneficial effects of this utility model are as follows: by setting a semi-circular box and a semi-cylinder, when clamping the workpiece, the semi-circular box will adapt to the shape of the workpiece in advance and then the semi-cylinder will adapt to the force, which makes it easy to effectively fit and clamp according to the size of the workpiece and the clamping point, ensuring good fit range and fit angle, and improving clamping accuracy and stability. By setting up multiple reinforcing strips, multiple clamping points can be formed to assist the semi-circular box in improving the clamping effect. On the other hand, it is convenient to disperse the clamping force, reduce the phenomenon of excessive local stress on the workpiece, and reduce the occurrence of deformation damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is an overall structural diagram of the clamping mechanism and welding device for the swing arm node assembly of intercity vehicles.

[0017] Figure 2 for Figure 1 A magnified view of A in the middle.

[0018] Figure 3 This is a structural diagram of the base plate and semi-cylinder of the clamping mechanism and welding device for the swing arm node assembly of intercity vehicles.

[0019] Figure 4 Exploded view of the semi-cylinder and semi-circular box of the clamping mechanism and welding device for the swing arm node assembly of intercity vehicles.

[0020] Figure 5 A cross-sectional view of the conduit for the clamping mechanism and welding device of the intercity vehicle boom node assembly.

[0021] The following numbers are labeled in the diagram: 100, robotic arm; 200, gripper; 210, semi-cylinder; 220, semi-circular box; 221, conduit; 222, piston disc; 230, reinforcing strip; 231, spring; 240, base plate; 241, air guide box; 242, tee pipe; 243, electric push rod; 244, piston plate; 245, exhaust pipe; 300, base. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1: Reference Figures 1-5 This is the first embodiment of the present utility model. This embodiment provides a clamping mechanism for intercity vehicle boom node assembly, including three robotic arms 100.

[0026] Two symmetrically arranged robotic arms 100 are used to adjust the clamping angle and clamping position accordingly to complete the subsequent clamping operation; It should be noted that the robotic arm 100 is equipped with a drive frame that can move relative to it. The robotic arm 100 is a conventional multi-axis driven robotic arm, which is a mature existing technology and will not be described in detail here.

[0027] It also includes clamping components 200, of which there are four clamping components 200. The four clamping components 200 are paired and respectively installed on the two robotic arms 100. The clamping components 200 include two semi-cylinders 210, four semi-circular boxes 220 and four sets of movable reinforcing bars 230. Two adjacent semi-circular boxes 220 are slidably connected to the inner side of the semi-cylinders 210, and one end of the reinforcing bar 230 extends to the outer side of the semi-circular box 220.

[0028] When performing clamping operations, a semi-circular box 220 can be used to fit against the outer surface of the workpiece. During the fitting process, the semi-circular box 220 and the semi-cylinder 210 undergo adaptive movement due to the influence of the workpiece's shape, thereby increasing the clamping fit range. Then, the reinforcing strip 230 moves along the angle after the deformation of each semi-circular box 220 to form a multi-point auxiliary reinforcement treatment and disperse the clamping force. It should be noted that during the movement of the reinforcing strip 230, it can be reinforced by contact with the concave area of ​​the workpiece, which further increases the clamping stability. The specifications and quantities of the semi-cylinder 210 and the semi-circular box 220 can be selected according to actual usage requirements; The reinforcing strip 230 includes a columnar body and an abutting end. The abutting end and the columnar body are connected by bolts. Users can replace the abutting end with different shapes according to their needs. The outer side of the abutting end can be provided with anti-slip texture or anti-slip rubber sleeve to improve the reinforcement effect and reduce the occurrence of slippage at the reinforcement point.

[0029] Example 2: Reference Figures 2-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0030] Specifically, the clamping member 200 also includes a base plate 240, which is mounted on the robotic arm 100, and the semi-cylinder 210 is slidably connected to the base plate 240.

[0031] The semi-cylinder 210 is supported by a substrate 240.

[0032] Specifically, a set of conduits 221 are installed inside the semi-circular box 220, and a piston disc 222 that is connected to the reinforcing strip 230 is slidably connected inside the conduit 221; an air guide box 241 is provided on the outside of the base plate 240, a three-way pipe 242 is provided on the outside of the air guide box 241, and a branch pipe is provided between the three-way pipe 242 and the semi-circular box 220.

[0033] After the gas is led out along the tee pipe 242, it will enter the semi-circular box 220, and then enter the conduit 221. The gas will then move the regional piston disc 222, causing each reinforcing bar 230 to move accordingly, thus clamping the outer side of the workpiece.

[0034] Specifically, an electric push rod 243 is installed inside the air guide box 241, and a piston plate 244 that is slidably connected to the inside of the air guide box 241 is installed at the end of the electric push rod 243.

[0035] When the reinforcing bar 230 is driven, the electric push rod 243 can be activated to move, so that the piston plate 244 discharges the gas in the air guide box 241 along the three-way pipe 242 to complete the gas delivery process. It should be noted that the gas guide box 241 has small holes for gas flow.

[0036] Specifically, an exhaust pipe 245 is provided on the air guide box 241, and a solenoid valve is provided on the outside of the exhaust pipe 245.

[0037] After the clamping operation is completed, the solenoid valve can be opened to allow the gas in the air guide box 241 to interact normally with the outside world.

[0038] Example 3: Reference Figures 2-5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0039] Specifically, a spring 231 is fitted on the outer side of the reinforcing strip 230. One end of the spring 231 is installed on the outer side of the piston disc 222, and the other end of the spring 231 is installed on the inner wall of the conduit 221.

[0040] After the clamping operation is completed, the reinforcing bar 230 can be reset by using the spring 231, which facilitates the next clamping operation.

[0041] Specifically, the branch pipe is made of plastic flexible tubing.

[0042] The use of a plastic flexible hose allows for normal gas delivery without affecting the normal movement of the semicircular box 220.

[0043] Specifically, the outer side of the semicircular box 220 is provided with an arc-shaped slider, and the interior of the semicircular cylinder 210 has two arc-shaped grooves that are adapted to the arc-shaped slider.

[0044] By utilizing the combination of the arc-shaped slider and the arc-shaped groove, the connection stability between the semicircular box 220 and the semicircular cylinder 210 can be guaranteed without affecting their adaptive motion. It should be noted that the specific connection method between the semi-cylinder 210 and the substrate 240 is the same as described above.

[0045] This utility model also provides a welding device for intercity vehicle boom node seat assembly, including the intercity vehicle boom node seat assembly clamping mechanism as described above, and also includes a base 300 and a welding torch, with the welding torch mounted on one of the robotic arms 100 and the robotic arm 100 mounted on the base 300.

[0046] The entire device is supported by a base 300. After the welding torch is clamped, the position of the welding torch can be adjusted by the robotic arm 100 to perform the welding operation.

[0047] In use, the workpiece is placed on the base 300, and then two symmetrically arranged robotic arms 100 drive the corresponding clamping parts 200 to move. The semi-circular box 220 is in contact with the outer side of the workpiece, and the robotic arm 100 drives the drive frame to perform clamping treatment with corresponding force. At the same time, the electric push rod 243 moves to introduce the gas in the gas guide box 241 into the conduit 221, so that the piston disc 222 drives the reinforcing strip 230 to abut against the outer side of the workpiece, completing the overall clamping and fixing. Then, the remaining robotic arm 100 drives the welding gun to move to the corresponding position on the workpiece to perform welding operations. After welding is completed, the clamping is released, and the workpiece is removed or transferred and transported by an external transfer mechanism.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping mechanism for a swing arm node assembly of an intercity vehicle, comprising three robotic arms (100), characterized in that: It also includes four clamping components (200), which are arranged in pairs and respectively mounted on two robotic arms (100). The clamping member (200) includes two semi-cylinders (210), four semi-circular boxes (220) and four sets of movable reinforcing strips (230). Two adjacent semi-circular boxes (220) are slidably connected to the inner side of the semi-cylinders (210), and one end of the reinforcing strip (230) extends to the outer side of the semi-circular box (220).

2. The intercity vehicle boom joint clamping mechanism as described in claim 1, characterized in that: The clamping member (200) also includes a base plate (240) which is mounted on the robotic arm (100), and the semi-cylinder (210) is slidably connected to the base plate (240).

3. The intercity vehicle knuckle node seat set clamping mechanism of claim 1, wherein: The semi-circular box (220) has a set of conduits (221) installed inside, and the conduits (221) are slidably connected to a piston disc (222) that docks with the reinforcing strip (230).

4. The intercity vehicle boom joint clamping mechanism as described in claim 2, characterized in that: An air guide box (241) is provided on the outside of the substrate (240), a three-way pipe (242) is provided on the outside of the air guide box (241), and a branch pipe is provided between the three-way pipe (242) and the semi-circular box (220).

5. The intercity vehicle knuckle node seat set clamping mechanism of claim 4, wherein: An electric push rod (243) is installed inside the air guide box (241), and a piston plate (244) that is slidably connected to the inside of the air guide box (241) is installed at the end of the electric push rod (243).

6. The intercity vehicle knuckle node seat set clamping mechanism of claim 4, wherein: An exhaust pipe (245) is provided on the air guide box (241), and a solenoid valve is provided on the outside of the exhaust pipe (245).

7. The intercity vehicle knuckle node set clamp mechanism of claim 3, wherein: A spring (231) is fitted on the outside of the reinforcing strip (230). One end of the spring (231) is installed on the outside of the piston disc (222), and the other end of the spring (231) is installed on the inner wall of the conduit (221).

8. The intercity vehicle boom joint clamping mechanism as described in claim 4, characterized in that: The branch pipe is made of plastic flexible tubing.

9. The intercity vehicle knuckle node set clamp mechanism of claim 1, wherein: The outer side of the semicircular box (220) is provided with an arc-shaped slider, and the interior of the semicircular cylinder (210) has two arc-shaped grooves that are adapted to the arc-shaped slider.

10. A device for assembling and welding a turnout node seat of an intercity vehicle, characterized in that it comprises: The intercity vehicle boom node clamping mechanism as described in any one of claims 1-9 further includes a base (300) and a welding torch, the welding torch being mounted on one of the robotic arms (100), the robotic arm (100) being mounted on the base (300).

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