Traction and bolster slow welding tool

Abstract

The utility model provides a traction bolster slow welding tooling, including front bracket, rear bracket, welding bracket, front mount, rear mount, front end clip, first clamping part and second clamping part, the length direction of front bracket is perpendicular to the length direction of rear bracket, welding bracket is trapezoidal and the small end is backward, the front end of welding bracket is fixedly connected with front bracket, and the rear end of welding bracket is fixedly connected with the rear mount. The rear end of the welding bracket is fixedly connected with the rear bracket, a welding through hole vertically penetrating through the welding bracket is formed in the middle of the welding bracket, the front fixing frame is fixed to the front end of the front bracket, the rear fixing frame is fixed to the rear end of the rear bracket, and the front-end clamps are fixed to the upper ends and the lower ends of the front bracket and the welding bracket and correspond to the periphery of the welding through hole. The welding tool has the advantages that the welding tool can be suitable for clamping of a vehicle head traction and bolster buffer and a middle vehicle traction and bolster buffer at the same time, the universality of the welding tool is improved, the utilization rate of the tool is increased, and the occupied area of the tool is reduced.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary manufacturing equipment for traction pillows and buffers, in particular to a traction pillow and buffer welding tool. Background Art

[0002] The subway underframe traction beam is a very critical component for rail transit vehicles. The quality of the traction beam directly affects the safe operation of the train. The traction beam is welded and assembled by the front hook seat, the middle traction beam and the rear end traction beam.

[0003] The traction and buffer group is divided into the middle car traction and buffer group and the head car traction and buffer group. Due to the difference in appearance and size, welding tooling needs to be designed separately. The welding of the traction and buffer group is mainly thick plate butt welds and T-type full penetration welds, both of which are multi-layer and multi-pass welding, and the butt welds need to be internally inspected after welding, so the welding tooling cannot interfere with the weld position in any way to avoid arc starting and arc ending during the process. The traction and buffer group is welded using special welding tooling, and is welded in conjunction with the double-column positioner for flipping. However, the welding tooling for the middle car traction and buffer group and the head car traction and buffer group is designed separately, resulting in large footprint, low utilization rate of welding tooling for the head car traction and buffer group, and low utilization rate of factory buildings. Therefore, it is necessary to produce a traction and buffer welding tooling to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a traction and slow welding tool to solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A traction and slow welding tool comprises a front bracket, a rear bracket, a welding bracket, a front fixing frame, a rear fixing frame, a front end clamp, a first clamping component and a second clamping component. The length direction of the front bracket is perpendicular to the length direction of the rear bracket. The welding bracket is trapezoidal with its small end facing backwards. The front end of the welding bracket is fixedly connected to the front bracket, and the rear end of the welding bracket is fixedly connected to the rear bracket. A welding through hole is provided in the middle of the welding bracket and vertically penetrates the welding bracket. The front fixing frame is fixed to the front end of the front bracket, and the rear fixing frame is fixed to the rear end of the rear bracket. The front end clamp is fixed to the upper and lower ends of the front bracket and the welding bracket, and the front end clamp corresponds to the outer periphery of the welding through hole. The first clamping component is fixed above the rear bracket, and the second clamping component is fixed below the rear bracket. The distance between the first clamping component and the welding through hole is greater than the distance between the second clamping component and the welding through hole.

[0007] Further description of the utility model: it also includes limit blocks, which are fixed at the upper and lower ends of the front bracket, and the limit blocks are arranged in multiple groups and correspond to the left and right sides of the front bracket respectively.

[0008] Further description of the utility model: it also includes support columns, which are arranged in four groups and are respectively fixed to the upper and lower ends of the front bracket and the upper and lower ends of the rear bracket.

[0009] Further description of the utility model: the first clamping component includes a limiting frame, a rear end clamp, a locking screw and a locking nut. The bottom of the limiting frame is fixed to the rear bracket, the rear end clamp is fixed to the top of the limiting frame, multiple groups of locking screws are arranged and rotatably mounted on the limiting frame, the locking nut is threadedly connected to the front end of the locking screw, and the structure of the second clamping component is the same as that of the first clamping component.

[0010] Further description of the utility model: A plurality of insertion holes are arranged on the outer periphery of the rear end of the locking screw.

[0011] The beneficial effects of the utility model are as follows: the tooling is provided with two positive and negative reference surfaces, which are respectively used for the welding head traction pillow and the middle traction pillow, and can adapt to the clamping of the head traction pillow and the middle traction pillow at the same time, thereby improving the versatility of the welding tooling, increasing the utilization rate of the tooling, and reducing the floor space occupied by the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall structure diagram of the utility model (in use);

[0013] Figure 2 This is the overall structure diagram of the utility model (top view);

[0014] Figure 3 This is the overall structure diagram of the utility model (looking up);

[0015] Figure 4 It is a right view of the utility model;

[0016] Description of reference numerals:

[0017] 01. Coupler seat; 02. Traction beam; 03. Pillow beam; 1. Front bracket; 2. Rear bracket; 3. Welding bracket; 31. Welding through hole; 4. Front fixing frame; 5. Rear fixing frame; 6. Front clamp; 7. First clamping component; 71. Limiting stand; 72. Rear clamp; 73. Locking screw; 731. Socket; 74. Locking nut; 8. Second clamping component; 9. Limiting block; 10. Support column. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] like Figures 1 to 4As shown, a traction and slow welding tool for a pillow comprises a front bracket 1, a rear bracket 2, a welding bracket 3, a front fixing frame 4, a rear fixing frame 5, a front end clamp 6, a first clamping component 7 and a second clamping component 8. The length direction of the front bracket 1 is perpendicular to the length direction of the rear bracket 2. The welding bracket 3 is trapezoidal with the small end facing backwards. The front end of the welding bracket 3 is fixedly connected to the front bracket 1, and the rear end of the welding bracket 3 is fixedly connected to the rear bracket 2. A welding through hole 31 which vertically penetrates the welding bracket 3 is opened in the middle part of the welding bracket 3. The front fixing frame 4 is fixed to the front end of the front bracket 1, and the rear fixing frame 5 is fixed to the rear end of the rear bracket 2. The front end clamp 6 is fixed to the upper and lower ends of the front bracket 1 and the welding bracket 3, and the front end clamp 6 corresponds to the outer periphery of the welding through hole 31. The first clamping component 7 is fixed above the rear bracket 2, and the second clamping component 8 is fixed below the rear bracket 2. The distance between the first clamping component 7 and the welding through hole 31 is greater than the distance between the second clamping component 8 and the welding through hole 31.

[0020] The traction and pillow block assembly includes a coupler seat 01, a traction beam 02 and a pillow block 03 which are connected to each other. During welding, the coupler seat 01 is placed on the rear bracket 2, and the pillow block 03 is placed on the front bracket 1. The welding positions of the traction beam 02 and the pillow block 03 correspond to the welding through holes 31. The front end clamp 6 is used to fix the pillow block 03 on the front bracket 1. Since the traction and pillow block are divided into a front traction and pillow block and a middle traction and pillow block, the lengths of the traction beams 02 are different. Therefore, when placed on the welding tool, the position of the coupler seat 01 is different. Therefore, the first clamping component 7 and the second clamping component 8 can respectively adapt to the two different lengths of traction and pillow blocks to fix the coupler seat 01. After the traction and pillow block are fixed, the welding tool is installed on the double-column positioner through the front bracket 1 and the rear bracket 2 to facilitate welding operations at the welding position. The advantage of this design is that the tooling is provided with two positive and negative reference surfaces, which are respectively used for the welding head traction pillow and the middle traction pillow. It can adapt to the clamping of the head traction pillow and the middle traction pillow at the same time, improve the versatility of the welding tooling, increase the utilization rate of the tooling, and reduce the floor space occupied by the tooling.

[0021] In the present design, it also includes limit blocks 9, which are fixed at the upper and lower ends of the front bracket 1. The limit blocks 9 are arranged in multiple groups and correspond to the left and right sides of the front bracket 1 respectively.

[0022] When placing the bolster 03, the limiting block 9 can facilitate the rapid positioning of the bolster 03, and also plays a limiting role during the clamping process.

[0023] In the present design, support columns 10 are also included. Four groups of support columns 10 are arranged and are fixed to the upper and lower ends of the front bracket 1 and the upper and lower ends of the rear bracket 2 respectively.

[0024] Before the welding fixture is installed on the double-column positioner, the front bracket 1 and the rear bracket 2 can be placed on the ground at an angle through the support column 10 to avoid damage to the traction pillow caused by contact between the ground and the traction pillow.

[0025] The first clamping component 7 includes a limiting frame 71, a rear end clamp 72, a locking screw 73 and a locking nut 74. The bottom of the limiting frame 71 is fixed to the rear bracket 2, and the rear end clamp 72 is fixed to the top of the limiting frame 71. The locking screws 73 are arranged in multiple groups and are rotatably installed on the limiting frame 71. The locking nut 74 is threadedly connected to the front end of the locking screw 73. The structure of the second clamping component 8 is the same as that of the first clamping component 7.

[0026] When fixing the coupler seat 01, the locking screw 73 is inserted into the corresponding hole of the coupler seat 01, the coupler seat 01 is initially clamped and fixed by the rear end clamp 72, and then the locking nut 74 is tightened on the locking screw 73 from the inside of the coupler seat 01, so that the coupler seat 01 is firmly fixed.

[0027] The rear end periphery of the locking screw 73 is provided with a plurality of insertion holes 731 , and a screwdriver or other metal rod-like object is inserted into the insertion holes 731 to facilitate the rotation of the locking screw 73 , thereby making the locking screw 73 and the locking nut 74 fit more firmly.

[0028] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A traction pillow slow welding tool, characterized in that: The invention comprises a front bracket, a rear bracket, a welding bracket, a front fixing bracket, a rear fixing bracket, a front end clamp, a first clamping component and a second clamping component, wherein the length direction of the front bracket is perpendicular to the length direction of the rear bracket, the welding bracket is trapezoidal with its small end facing backwards, the front end of the welding bracket is fixedly connected to the front bracket, the rear end of the welding bracket is fixedly connected to the rear bracket, a welding through hole vertically penetrating the welding bracket is provided in the middle part of the welding bracket, the front fixing bracket is fixed to the front end of the front bracket, the rear fixing bracket is fixed to the rear end of the rear bracket, the front end clamp is fixed to the upper and lower ends of the front bracket and the welding bracket, the front end clamp corresponds to the outer periphery of the welding through hole, the first clamping component is fixed above the rear bracket, the second clamping component is fixed below the rear bracket, and the distance between the first clamping component and the welding through hole is greater than the distance between the second clamping component and the welding through hole.

2. The traction and slow welding tool according to claim 1 is characterized in that: It also includes limit blocks, which are fixed at the upper and lower ends of the front bracket. The limit blocks are arranged in multiple groups and correspond to the left and right sides of the front bracket respectively.

3. The traction and slow welding tool according to claim 1 is characterized by: It also includes support columns, which are arranged in four groups and are respectively fixed to the upper and lower ends of the front bracket and the upper and lower ends of the rear bracket.

4. The traction and slow welding tool according to claim 1 is characterized by: The first clamping component includes a limiting frame, a rear end clamp, a locking screw and a locking nut. The bottom of the limiting frame is fixed to the rear bracket, and the rear end clamp is fixed to the top of the limiting frame. The locking screws are arranged in multiple groups and are rotatably mounted on the limiting frame. The locking nut is threadedly connected to the front end of the locking screw. The structure of the second clamping component is the same as that of the first clamping component.

5. The traction and slow welding tool according to claim 4 is characterized by: A plurality of insertion holes are arranged on the outer periphery of the rear end of the locking screw.

Images