A collision-proof welding device for hydraulic torque converter

Abstract

The utility model relates to an anti-collision welding device for a hydraulic torque converter, including a positioning plate, a limit block and a connecting bolt. The limit block is arranged on the positioning plate, the connecting bolt connects the positioning plate and the limit block, the positioning plate cooperates with the turbine shaft of the hydraulic torque converter for guiding, cooperates with the inner hole of the pump wheel bushing of the hydraulic torque converter for positioning, and the limit block cooperates with the convex key of the hydraulic torque converter for limiting. The beneficial effect of the utility model is that when the hydraulic torque converter is placed into the welding device, the turbine shaft is first placed into the positioning plate, and then the pump wheel bushing and the convex key are placed into the positioning plate and the limit block. By first guiding and then positioning, the pump wheel bushing and the convex key at the front end of the bushing are prevented from colliding with the welding tooling. The device is convenient and quick to install and use, improves work efficiency, and ensures the smooth progress of the hydraulic torque converter welding work.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic torque converter manufacturing, and particularly relates to an anti-collision welding device for a hydraulic torque converter. Background Art

[0002] The torque converter is installed between the engine and the torque converter box, using hydraulic oil (ATF) as the working medium, and plays the role of transmitting torque and changing torque.

[0003] like Figure 1 As shown, when welding the front cover assembly and the impeller assembly of the torque converter 1, the turbine shaft and other parts are assembled into the front cover assembly and the impeller assembly in advance, and the turbine shaft 101 of the torque converter is protruding, followed by the impeller bushing 102 and the convex key 103 at the front end of the bushing. Therefore, when the impeller bushing 102 of the torque converter 1 is partially placed into the welding fixture 2, the impeller bushing 102 and the convex key 103 at the front end of the bushing are easy to bump into the welding fixture 2, causing local deformation and damage of the parts, resulting in the parts being unable to be placed in the welding fixture. For this reason, it is necessary to design a reliable welding device that can prevent the impeller bushing 102 and the convex key 103 from bumping against the surface. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an anti-collision welding device for a hydraulic torque converter, so as to ensure smooth welding of the hydraulic torque converter and improve work efficiency and quality.

[0005] To achieve the above-mentioned purpose, the utility model provides an anti-collision welding device for a torque converter, including a positioning plate, a limit block and a connecting bolt. The limit block is arranged on the positioning plate, and the connecting bolts connect the positioning plate and the limit block. The positioning plate cooperates with the turbine shaft for guidance and with the inner hole of the impeller bushing for positioning, and the limit block cooperates with the convex key for limiting positioning.

[0006] The positioning plate is flange-shaped, a guide through hole is provided at the center of the middle cylinder of the positioning plate, a clearance fit is formed between the guide through hole and the outer circle of the turbine shaft, a clearance fit is formed between the outer circle of the middle cylinder and the inner circle of the impeller bushing, and a mounting through hole is provided at the flange of the positioning plate;

[0007] The limit block is a cylinder, and two through holes are arranged in the center of the limit block. The upper through hole is clearance-matched with the outer circle of the pump wheel bushing, and the lower through hole is provided with a keyway and a convex key for corresponding arrangement and matching positioning. The lower end surface of the limit block is provided with a mounting screw hole, and the mounting screw hole is arranged correspondingly with the mounting through hole on the positioning plate.

[0008] The connecting bolts are connected to the positioning plate and the limiting block through the mounting through holes and the mounting screw holes.

[0009] By adopting the above technical scheme, the beneficial effect of the utility model is that when the torque converter is placed into the welding device, the turbine shaft is first placed into the positioning plate, and then the pump wheel bushing and the convex key are placed into the positioning plate and the limit block. By guiding first and then positioning, the pump wheel bushing and the convex key at the front end of the bushing are prevented from hitting the welding tooling. The device is easy and quick to install and use, which improves work efficiency and ensures the smooth progress of the torque converter welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of welding tooling in the prior art.

[0011] Figure 2 It is a structural schematic diagram of an embodiment of the utility model.

[0012] Figure 3 It is a schematic diagram of a positioning plate in an embodiment of the utility model.

[0013] Figure 4 yes Figure 3 sectional view of .

[0014] Figure 5 It is a schematic diagram of a limit block in an embodiment of the utility model.

[0015] Figure 6 yes Figure 5 sectional view of .

[0016] In the figure: 1- torque converter, 101- turbine shaft, 102- pump wheel bushing, 103- convex key, 2- welding tool, 3- limit block, 301- through hole, 302- keyway, 303- mounting screw hole, 4- positioning plate, 401- guide through hole, 402- mounting through hole, 5- connecting bolt. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] See also Figure 2 A collision prevention welding device for a torque converter includes a limit block 3 and a positioning plate 4. The limit block 3 is provided on the positioning plate 4. The positioning plate 4 cooperates with the turbine shaft 101 of the torque converter 1 for guidance and cooperates with the inner hole of the pump wheel bushing for positioning. The limit block 3 cooperates with the pump wheel bushing 102 and the convex key 103 for limiting.

[0019] like Figure 3 , Figure 4As shown, the positioning plate 4 is flange-shaped, and a guide through hole 401 is provided at the center of the middle cylinder of the positioning plate 4. There is a clearance fit between the guide through hole 401 and the outer circle of the turbine shaft 101, and there is a clearance fit between the outer circle of the middle cylinder and the inner circle of the impeller bushing 102. A mounting through hole 402 is provided at the flange of the positioning plate 4;

[0020] like Figure 5 , Figure 6 As shown, the limit block 3 is a cylinder, and two through holes 301 are provided in the center of the limit block 3. The upper through hole is clearance-fitted with the outer circle of the impeller bushing 102, and the lower through hole is provided with a keyway 302 which is correspondingly arranged and positioned with the convex key 103. The lower end face of the limit block 3 is provided with a mounting screw hole 303, and the mounting screw hole 303 is correspondingly arranged with the mounting through hole 402 of the guide plate 4.

[0021] The connecting bolts 5 are connected to the positioning plate 4 and the limiting block 3 through the mounting through holes 402 and the mounting screw holes 303 .

[0022] Working principle:

[0023] 1. Use the connecting bolts 5 to assemble the limit block 3 and the positioning plate 4;

[0024] 2. Align the turbine shaft 101 of the torque converter 1 with the middle guide through hole 401 of the positioning plate 4, drop the torque converter 1 so that the inner circle of the pump impeller bushing 102 is matched with the outer circle of the middle cylinder of the positioning plate 4 for positioning, and the limit block 3 is matched with the outer circle of the pump impeller bushing 102 and the convex key 103 for limiting;

[0025] 3. Start the welding machine and weld the front cover assembly and the pump wheel assembly of the torque converter 1.

[0026] The above is only one embodiment of the present invention. It should be noted that, for those skilled in the art, obvious modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered to fall within the protection scope of the present invention.

Claims

1. An anti-collision welding device for a torque converter, characterized in that: It includes a positioning plate, a limit block and connecting bolts. The limit block is arranged on the positioning plate. The connecting bolts connect the positioning plate and the limit block. The positioning plate cooperates with the turbine shaft of the torque converter for guidance and cooperates with the inner hole of the pump wheel bushing of the torque converter for positioning. The limit block cooperates with the convex key of the torque converter for limiting.

2. The anti-collision welding device for a hydraulic torque converter according to claim 1, characterized in that: The positioning plate is flange-shaped, and a guide hole is provided at the center of the middle cylinder of the positioning plate. There is a clearance fit between the guide hole and the outer circle of the turbine shaft, and there is a clearance fit between the outer circle of the middle cylinder and the inner circle of the impeller bushing. A mounting hole is provided at the flange of the positioning plate.

3. The anti-collision welding device for a torque converter according to claim 1, characterized in that: The limit block is a cylinder with two through holes in the center. The upper through hole is clearance-matched with the outer circle of the impeller bushing, and the lower through hole is provided with a keyway and a convex key for positioning. The lower end face of the limit block is provided with a mounting screw hole, which is arranged corresponding to the mounting through hole on the positioning plate.

4. The anti-collision welding device for a torque converter according to claim 1, characterized in that: The connecting bolts are connected to the positioning plate and the limiting block through the mounting through holes and the mounting screw holes.

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