Transmission shaft double-end phase friction machine ultra-short part welding tool

Abstract

The utility model discloses a transmission shaft double-end phase friction machine ultrashort part welding tool, which relates to the transmission shaft welding field, and comprises a spline positioning sleeve, a friction welding pushing support block and a spline shaft, the inner hole wall of the spline positioning sleeve is provided with an inner spline, the friction welding pushing support block is arranged in the inner hole, and the spline shaft is arranged in the inner spline. The two spline shafts are arranged at the two ends of the spline positioning sleeve in the mode that the non-welding ends face inwards and the welding ends face outwards, so that the two non-welding ends abut against the friction welding pushing bearing block, and the welding ends are in friction welding with the welding fork through friction welding equipment. The device is suitable for a transmission shaft product with the length of a shaft tube or a spline shaft larger than 50 mm and smaller than the designed shortest length of friction welding equipment, so that the transmission shaft product can be machined on double-end belt phase friction welding equipment, the machining capacity range of the transmission shaft friction welding equipment is expanded, the manufacturing quality level of the steel front transmission shaft of the four-wheel drive is improved, and the production cost is reduced. The product percent of pass and the production efficiency of the aluminum alloy spline shaft yoke are improved, and the product manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of transmission shaft welding, and particularly relates to a transmission shaft double-end phase friction machine ultra-short length part welding tool. BACKGROUND

[0002] The existing transmission shaft friction welding equipment with double-end phase control structure is limited by the width of the intermediate shaft pipe clamp mold, and the shortest processable shaft pipe length of the 6-ton friction welding equipment is 220mm, and the shortest processable shaft pipe length of the 12-ton and 20-ton friction welding equipment is 390mm, so whether domestic equipment or imported equipment has this limitation, and the transmission shaft products shorter than the limited length can only be processed by using a melting welding process.

[0003] For the front drive non-constant speed structure steel transmission shaft of an off-road vehicle, some products have a shaft pipe design length shorter than 220mm, so the existing friction welding equipment cannot process the products, and the products can only be processed by using a melting welding process, and the welding deformation is large, and the product quality is low.

[0004] For the spline shaft fork part of an aluminum alloy transmission shaft, the existing processing technology is as follows: a single long 390mm spline shaft part is friction welded with two end aluminum welding forks, the spline shaft is sawn off from the middle part after welding to divide the spline shaft into two spline shaft fork parts, and then the parts are machined to process the cut surfaces. Because the spline machining length is too long, the precision control is difficult, and the spline shaft machining failure rate is more than 20%. The production process of the spline shaft fork product is as follows: spline shaft part machining - friction welding - sawing separation after welding - fracture trimming - finished product inspection and transfer. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, and provides a transmission shaft double-end phase friction machine ultra-short length part welding tool, which is suitable for the transmission shaft products with a shaft pipe or spline shaft length greater than 50mm and less than the shortest length designed by the friction welding equipment, so that the products can be processed on the double-end phase friction welding equipment, the processing capacity range of the transmission shaft friction welding equipment is expanded, the manufacturing quality level of the steel front transmission shaft of a four-wheel drive vehicle is improved, the product qualification rate and production efficiency of the aluminum alloy spline shaft fork are improved, and the product manufacturing cost is reduced.

[0006] The utility model aims at overcoming the defects of the prior art, and provides a transmission shaft double-end phase friction machine ultra-short length part welding tool, which is suitable for the transmission shaft products with a shaft pipe or spline shaft length greater than 50mm and less than the shortest length designed by the friction welding equipment, so that the products can be processed on the double-end phase friction welding equipment, the processing capacity range of the transmission shaft friction welding equipment is expanded, the manufacturing quality level of the steel front transmission shaft of a four-wheel drive vehicle is improved, the product qualification rate and production efficiency of the aluminum alloy spline shaft fork are improved, and the product manufacturing cost is reduced.

[0007] As a further technical scheme, the positioning hole is arranged on the outer wall of the spline positioning sleeve and communicates with the inner hole, and a phase positioning rod is penetrated, so that the friction welding push supporting block is tightly pressed against the spline positioning sleeve.

[0008] As a further technical scheme, the phase positioning rod is positioned and installed with the die of the friction welding equipment to meet the phase requirement during the friction welding.

[0009] As a further technical scheme, the length of the spline shaft is greater than 50 mm and less than 220 mm, and the length L of the spline positioning sleeve is adjusted according to the length of the spline shaft, so that the total length of the two spline shafts after being installed in the spline positioning sleeve is greater than the shortest clamping length of the friction welding equipment.

[0010] As a further technical scheme, the outer diameter D of the spline positioning sleeve is a positioning reference for the installation of the friction welding shaft pipe part.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The product with the shaft pipe length less than 220 mm can be mass-produced on the double-end phase friction welding equipment, the quality stability and the precision level are greatly improved compared with the melting welding, the processing capacity range of the friction welding equipment is enlarged, and the product quality level and the production efficiency of the transmission shaft are improved;

[0013] 2. The phase positioning rod is installed on the spline positioning sleeve and can be positioned and installed with the die of the friction welding equipment to meet the phase requirement during the friction welding.

[0014] 3. The two spline shafts are directly pulled out after welding to obtain the finished product, without sawing and separating, the aluminum alloy spline shaft fork processing flow is shortened, the spline shaft part qualified rate is improved by more than 11%, the spline shaft fork friction welding qualified rate is more than 99%, the production efficiency is improved by 5%, and the manufacturing cost is reduced by 13.5%. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model.

[0016] Figure 2 It is a structural schematic view of the utility model during welding.

[0017] Figure 3 It is a structural schematic view of the finished product after welding of the utility model.

[0018] Marked with the spline positioning sleeve 1, the inner spline 2, the friction welding push supporting block 3, the phase positioning rod 4, the positioning hole 5, the welding fork 6, the spline shaft 7, the welding end 8, the non-welding end 9, the outer spline 10, and the finished product 11. DETAILED DESCRIPTION

[0019] The utility model will make a detailed introduction in connection with the drawings below:

[0020] Embodiment: as shown in the drawings, this transmission shaft double head phase friction machine ultra-short length part welding tool, including spline positioning sleeve 1, internal spline 2, friction welding push supporting block 3, phase positioning rod 4, positioning hole 5, welding fork 6, spline shaft 7, welding end 8, non-welding end 9, external spline 10 and finished product 11.

[0021] Reference attached Figure 1 On the inner hole wall of spline positioning sleeve 1, internal spline 2 is equipped, and friction welding push supporting block 3 is placed into the inner hole, further, a positioning hole 5 is set up on the outer wall of spline positioning sleeve 1 and is communicated with the inner hole, and phase positioning rod 4 is inserted into positioning hole 5, so that friction welding push supporting block 3 is tightly pressed against spline positioning sleeve 1.

[0022] As Figure 2 Shown, two spline shafts 7 are placed into both ends of spline positioning sleeve 1 in the mode that non-welding end 9 faces inwards and welding end 8 faces outwards, and after external spline 10 of spline shaft 7 cooperates with internal spline 2, two non-welding ends 9 are all abutted on friction welding push supporting block 3, and welding end 8 is friction welded with welding fork 6 through friction welding equipment.

[0023] Further, the length of spline shaft 7 needs to be greater than 50mm and less than 220mm (namely less than the shortest processable shaft tube length of 6 tons friction welding equipment design), and the length L of spline positioning sleeve 1 is adjusted according to the length of spline shaft 7, so that the total length of two spline shafts 7 after being loaded into spline positioning sleeve 1 is greater than the shortest clamping length of friction welding equipment, and the processing capacity range of transmission shaft friction welding equipment is expanded. In addition, the outer diameter D of spline positioning sleeve 1 is the installation positioning reference of friction welding shaft tube parts.

[0024] Preferably, for the friction welding product with phase requirement, phase positioning rod 4 is installed with the die of friction welding equipment to meet the phase requirement during friction welding.

[0025] The working process of the utility model: before the welding of ultra-short length parts, the appropriate length of spline positioning sleeve 1 is selected according to the actual size of spline shaft 7, and the total length of two spline shafts 7 after being loaded into spline positioning sleeve 1 is ensured to be greater than the shortest clamping length of friction welding equipment. Phase positioning rod 4 is inserted into positioning hole 5, so that friction welding push supporting block 3 is tightly pressed against spline positioning sleeve 1, and the whole assembly after assembly is installed with the die of friction welding equipment through phase positioning rod 4 to meet the phase requirement during friction welding. Subsequently, friction welding equipment is started, and welding end 8 is friction welded with welding fork 6. After welding, non-welding end 9 of spline shaft 7 is pulled out from spline positioning sleeve 1, and finished product 11 can be obtained, as Figure 3The aluminum alloy spline shaft fork machining process is shortened, the spline shaft part qualified rate is increased by more than 11%, the spline shaft fork friction welding qualified rate is more than 99%, the production efficiency is increased by 5%, and the manufacturing cost is reduced by 13.5%.

[0026] It can be understood that equivalent replacement or change of the technical scheme and the utility model concept of the utility model should belong to the protection range of the claims of the utility model.

Claims

1. A transmission shaft double-end phase friction machine ultra-short length part welding tool, characterized in that: It comprises a spline positioning sleeve (1), a friction welding pushing supporting block (3) and spline shafts (7), the inner hole wall of the spline positioning sleeve (1) is provided with inner splines (2), the friction welding pushing supporting block (3) is put into the inner hole, two spline shafts (7) are put into two ends of the spline positioning sleeve (1) in a manner that the non-welding ends (9) face inwards and the welding ends (8) face outwards, so that the two non-welding ends (9) are all abutted on the friction welding pushing supporting block (3), and the welding ends (8) are friction welded with the welding yoke (6) through the friction welding equipment.

2. The transmission shaft double-end phase friction machine ultra-short length part welding tooling according to claim 1, characterized in that: The outer wall of the spline positioning sleeve (1) is provided with a positioning hole (5) which is communicated with the inner hole and is used for penetrating a phase positioning rod (4) to tightly push the friction welding pushing supporting block (3) against the spline positioning sleeve (1).

3. The transmission shaft double-end phase friction machine ultra-short length part welding tooling according to claim 2, characterized in that: The phase positioning rod (4) is positioned and installed with the die of the friction welding equipment to meet the phase requirement during friction welding.

4. The transmission shaft double-end phase friction machine ultra-short length part welding tooling according to claim 1, characterized in that: The length of the spline shaft (7) is greater than 50 mm and less than 220 mm, and the length L of the spline positioning sleeve (1) is adjusted according to the length of the spline shaft (7), so that the total length of the two spline shafts (7) after being installed in the spline positioning sleeve (1) is greater than the shortest clamping length of the friction welding equipment.

5. The transmission shaft double-end phase friction machine ultra-short length part welding tooling according to claim 1, characterized in that: The outer diameter D of the spline positioning sleeve (1) is the installation positioning reference of the friction welding shaft pipe part.

Images