Holding device used in part surface heat treatment
A surface heat treatment and clamping device technology, which is applied in heat treatment furnaces, heat treatment equipment, quenching devices, etc., can solve problems such as uneven surface hardness, and achieve the effects of convenient operation, weight reduction, and energy saving
Inactive Publication Date: 2013-07-31
哈尔滨哈飞航空工业有限责任公司
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Problems solved by technology
[0003] Purpose of the invention: To provide a clamping device for surface heat treatment of parts, which can solve the problem of uneven surface hardness of the ball head part of shaft parts and ensure the hardening depth
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[0018] The present invention will be further described in detail below with reference to the accompanying drawings. Figure 1 to Figure 7 .
[0019] A clamping device for surface heat treatment of parts, including a positioning shaft 4 for accommodating shaft parts, a fan 8 closely matched with the positioning shaft 4, and a fan cover 7 and a fan blade corresponding to the position are provided with air outlets and outlets. The air outlet and the positioning shaft are provided with external threads. The shaft parts are held tightly by the tightening nut 2 with the spring 1 and the locking piece 3. The air flow is introduced from the air outlet to make the fan 8 rotate, thereby driving the positioning shaft 4 and the shaft parts to rotate.
[0020] A bearing 5 is also provided, the bearing 5 is installed in the bearing sleeve 6 , and the positioning shaft 4 is sleeved into the bearing 5 .
[0021] The cross-section of the locking piece 3 is trapezoidal, and three openings are ...
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Abstract
The invention belongs to a holding device used in part surface heat treatment, and especially used in surface quenching of a ball head part of an end of a shaft part. The invention specifically relates to a holding device used in part surface heat treatment. The device comprises a positioning shaft used for receiving a shaft part, and a fan closely matching the positioning shaft. With the cooperation of a fastening nut, a spring and a locking plate, the shaft part is firmly held. Gas flow is introduced from a blowing port, such that the fan rotates, and the positioning shaft and the shaft part rotate under the driving. The holding device provided by the invention is convenient to operate. With the device, various parameter requirements specified by a drawing of the part can be ensured, and the quenching hardness value and hardened layer depth of the surface of each part are substantially constant. Therefore, a problem that requirements of specified hardness value and hardened layer depth cannot be satisfied by surface quenching of a shaft part with ball heads on two ends can be solved. According to the invention, external gas flow is introduced as a power source, such that a manner of adopting a motor as the power source is avoided. Therefore, weight is reduced, energy source is saved, and cost is reduced.
Description
technical field [0001] The invention belongs to a clamping device for the surface heat treatment of parts, in particular to the surface quenching of the spherical head part of the end of a shaft part, and particularly relates to a clamping device for the surface heat treatment of parts. Background technique [0002] As the surface quenching of the ball head part of the end of the shaft part, the surface hardness of the part is HRC54-60, and the middle of the ball head is less than 2.5mm without quenching, the critical surface hardness is HV>475, and the hardening depth is 1-2mm. The original quenching method is to carry out surface quenching by the worker holding the part, which is very prone to uneven heating, which makes the surface hardness of the end of the part uneven, and the hardening depth of 1-2mm cannot be guaranteed, and the degree of hardening often exceeds 2mm or even hardened. until the part breaks. SUMMARY OF THE INVENTION [0003] The purpose of the inv...
Claims
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IPC IPC(8): C21D9/28C21D1/62
Inventor 李野刘蔷杜轶囡
Owner 哈尔滨哈飞航空工业有限责任公司