Shaft heat treatment fixture
A technology of fixtures and shafts, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as infirmity and loose clamping, and achieve the effect of loose clamping
Active Publication Date: 2017-08-18
江苏保捷精锻有限公司 +1
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- Description
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- Application Information
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Problems solved by technology
[0004] The purpose of the present invention is to provide a shaft heat treatment fixture to solve the problem of loose and insecure clamping caused by high temperature deformation of the bearing ring existing in the prior art
Method used
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Embodiment Construction
[0015] The present invention will be described in further detail below by means of specific embodiments:
[0016] The reference numerals in the accompanying drawings of the description include: machine base 1 , sliding seat 11 , screw rod 2 , handle 21 , cam roller 3 , cylindrical roller 4 , jaw 5 , cylinder body 6 , and piston rod 61 .
[0017] The embodiment is basically as attached figure 1 And attached figure 2 Shown:
[0018] The shaft heat treatment fixture includes two oppositely arranged jaws 5, the jaws 5 are in the shape of an arc, and a hydraulic cylinder is connected between the ends of the two jaws, and the hydraulic cylinder includes a Cylinder 6, and the piston rod 61 that fits in the cylinder 6, the end of piston rod 61 links to each other with the end of another jaw 5; The one-way valve and the overflow that are used to control the oil circuit are respectively connected on the cylinder 6. A flow valve; a driving mechanism for driving the clamping jaws 5 to...
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The invention relates to the technical field of heat treatment of rings, and particularly discloses a shaft heat treatment fixture. The shaft heat treatment fixture comprises two clamping jaws oppositely arranged; the clamping jaws are arched; hydraulic cylinders are respectively connected between the end parts of the two clamping jaws; the hydraulic cylinders comprise cylinder bodies arranged in one clamping jaw, and piston rods matched in the cylinder bodies; the end parts of the piston rods are connected with the end part of the other clamping jaw; the cylinder bodies are respectively connected with one-way valves and overflow valves for controlling oil ways; and a driving mechanism for driving external expansion clamping of the clamping jaws is connected between the two clamping jaws. The shaft heat treatment fixture has the following beneficial effects: the heated deformation margin of bearing rings is fed through the oil pressure expansion principle in the hydraulic cylinders to realize secondary clamping in the heat treatment process; and the problem of loose clamping caused by high-temperature deformation of the bearing rings in the prior art is solved.
Description
technical field [0001] The invention relates to the technical field of heat treatment for rings. Background technique [0002] At present, the heat treatment device for extra-large bearing rings is relatively mature in the enterprise. All large-scale bearings adopt the overall quenching technology of low-carbon alloy steel, which can control the warping and deformation of the bearing rings better, with high processing quality and long service life. More than twenty years. The heat treatment of the bearing ring requires a special fixture for clamping because the outer surface of the shaft ring needs to be treated. Chinese patent CN103725862B discloses a large-scale bearing ring heat treatment fixture, including a base plate, a main shaft, a guide sleeve, a strut, a support block, and a joint bearing. The center of the upper surface of the base plate is vertically provided with a rotating shaft, which is rotatably installed on the base plate, and the rotating shaft The side ...
Claims
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Login to View More IPC IPC(8): C21D9/40
CPCC21D9/40
Inventor 罗贵良
Owner 江苏保捷精锻有限公司