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The Method of Adjusting the Coaxiality Accuracy Between the Spindle Side and Tailstock Side of Friction Welding Machine

A friction welding machine and coaxiality technology, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve problems such as reflecting the relative position of the main shaft and tailstock, and the relative position state is inconsistent

Inactive Publication Date: 2015-09-09
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] And when the welding machine is in the welding state (upsetting state), that is, when the main shaft is inserted into the tailstock guide cover (such as Figure 7 As shown) under the action of 295.7MPa welding pressure on the tailstock side, the main shaft is firmly upright, so that the sinking phenomenon of the main shaft disappears, and the ΔL deviation also disappears. At this time, the position of the cabinet between the main shaft and the tail stock is in a straight line Parallel state, so the real position state between the main shaft and the tailstock is under the welding pressure, which is inconsistent with the relative position state between the main shaft and the tailstock in the non-welding state (the main shaft and the tailstock are separated), This makes the coaxial measurement and adjustment using the above-mentioned tripod method in the non-welding state not really reflect the real relative position between the spindle and the tailstock in the welding state

Method used

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  • The Method of Adjusting the Coaxiality Accuracy Between the Spindle Side and Tailstock Side of Friction Welding Machine
  • The Method of Adjusting the Coaxiality Accuracy Between the Spindle Side and Tailstock Side of Friction Welding Machine
  • The Method of Adjusting the Coaxiality Accuracy Between the Spindle Side and Tailstock Side of Friction Welding Machine

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Embodiment 1

[0032] Further illustrate the embodiment of the present utility model below in conjunction with accompanying drawing.

[0033] 1. This is a special method for adjusting the coaxiality accuracy between the main shaft side and the tailstock side of the friction welding machine. Press image 3 As shown, first loosen the hexagon socket bolt 4 and the slant iron bolt 8 of the guide cover; press figure 1 The shown tailstock side 2 is set together with the main shaft side 1 through the guide cover 3; on the premise that the parts have been installed, the welding pressure used when the welding machine welds the parts is used for three times.

[0034] 2. Press figure 2 and image 3 As shown, tighten the hexagon socket bolt 4 during the bumping process; then drive the tailstock side 2 to separate from the main shaft side 1 and keep an appropriate distance, then continue to tighten the hexagon socket bolt 4, and install the upper table frame and table 6 on the end surface of the main ...

Embodiment 2

[0038] A method for adjusting the coaxiality accuracy between the main shaft side and the tailstock side of a friction welding machine. Since the guide cover and the main shaft of the 480B friction welding machine belong to a transition fit, the maximum allowable interference is 0.0254mm, and the main shaft itself has a diameter of 876.3mm The radial runout is only 0.03mm, so we can loosen the bolts of the guide cover during the upsetting time (120 seconds) when the main shaft and the tailstock of the welding machine are under welding pressure, and skillfully use the guide cover and the main shaft in the upsetting state The principle of lower concentricity, through the "stamp" of the guide cover, the position of the main shaft side relative to the tailstock side is aligned and "printed" on the tailstock side, so that the real distance between the main shaft and the tailstock in the welding upsetting state is obtained. Coaxial state;

[0039] Under the condition of obtaining th...

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Abstract

The invention discloses a method for regulating the accuracy of coaxiality between the spindle side and the tailstock side of a friction welding machine. The method comprises the following steps of: loosening a bolt of a guide housing 3 when a spindle and a tailstock of a welding machine are upset under the action of welding pressure, and aligning the position, relative to the tailstock side 2, of the spindle side 1 and the tailstock side 2 through the guide housing 3 by utilizing the principle that the guide housing 3 and the spindle are concentric in an upsetting state to obtain the real coaxiality state of the spindle and the tailstock in the welding upsetting state; and adjusting the position of the tailstock relative to the spindle under the condition of obtained coaxial condition data between the spindle and the tailstock in the state, and performing part friction welding in the state, wherein a technical requirement on part welding bounce of 0.1mm is met. The technical bottleneck of the prior art is solved, and the method can be popularized for use in similar parts, and has broad application prospect in series of new-generation aircraft engines and power turbines.

Description

technical field [0001] The invention relates to the field of friction welding operation technology and application technology, and in particular provides a method for adjusting the coaxiality accuracy between the main shaft side and the tailstock side of a friction welding machine. Background technique [0002] In the prior art, inertial friction welding is a solid-state welding process, that is, two parts to be welded, one is clamped on the main shaft and the other is clamped on the tailstock, and the flywheel on the main shaft is accelerated to a predetermined speed to generate a motion. Then disengage the motor and continue to rotate by the inertia of the flywheel. At this time, the hydraulic cylinder is pressurized to make the two parts contact and rub. As the speed of the flywheel decreases, the kinetic energy stored on the flywheel is converted into heat energy generated by friction. The combined action of flywheel torque and cylinder pressure creates a powerful forgin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12
Inventor 曾维慷祝文卉王敬和谭薇赵鹏飞
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION