Center frame for turning of lengthened square rod
A steady rest and turning technology, applied in the field of tooling and fixtures, can solve problems such as potential safety hazards, unqualified workpiece processing quality, large tail of the workpiece, etc., and achieve the effects of improving processing accuracy, reducing processing costs, and being easy to use
Pending Publication Date: 2018-06-08
WUXI XINYINYE MACHINERY
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Problems solved by technology
[0004] At present, it is necessary to process the installation structure at both ends of the elongated square rod on the lathe. If the workpiece is clamped with four claws on the lathe, because the standard center frame can only support the outer diameter of the circular shaft, this shape is not circular. The workpiece cannot be supported, and the tail of the workpiece will jump very much during the turning process of the lathe. If only one end is clamped to process the other end, not only the processing quality of the workpiece will not be qualified, but also cause a great safety hazard in the production process.
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[0015] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0016] figure 1 , 2 Among them, it includes center frame body 1, Xuan replacement support tube 2, square bar parts 3, set bolts 4, bearings 5, etc.
[0017] Such as figure 1 , 2 As shown, the present invention is a center frame for elongated square bar turning, including a center frame body 1, three claws are evenly distributed in a circumferential shape on the center frame body 1, and a clamping end of each claw is rotated to set a The bearing 5 and the support tube 2 are clamped and arranged in the clamping support station formed by the three bearings 5. Four tightening bolts 4 are evenly distributed on the circumferential surfaces of both ends of the support tube 2, and each tightening bolt 4 The fixed bolts 4 all go through the wall thickness of the support pipe 2 and are set.
[0018] Bearing 5 is compressed on Xuan change support ...
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The invention belongs to the technical field of tool clamps and relates to a center frame for turning of a lengthened square rod. The center frame comprises a center frame body. Three clamping jaws are distributed on the center frame body evenly and circumferentially. A bearing is arranged at the clamping end of each clamping jaw rotationally. A switching support pipe is clamped in a clamping support station formed by three bearings. Four fastening bolts are evenly distributed on the circumferential surface of the two ends of the switching support pipe correspondingly. Each fastening bolt penetrates through the wall thickness of the switching support pipe. According to the center frame, the problem of center supporting of super-long square rod parts during lathe machining is solved, manufacturing and use are convenient, product machining precision is improved, and machining cost is lowered.
Description
technical field [0001] The invention belongs to the technical field of fixtures and relates to a center frame for turning an elongated square bar. Background technique [0002] Turning circular rotary long-axis parts generally use the center frame that comes with the lathe. After the parts are clamped by the jaws, the center frame is supported on the outer circle of the part itself, so that the long-axis parts can be controlled away from the card during the rotation process. The outer circle and plane of the claw run out to ensure the concentricity of the clamping part and the turning part. [0003] As the company involves more and more shapes and specifications of parts in the development process, on the basis of making full use of existing equipment, it is urgent to design special fixtures to solve this problem when processing rotary parts with irregular shapes. [0004] At present, it is necessary to process the installation structure at both ends of the elongated square...
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Login to View More IPC IPC(8): B23Q1/76
CPCB23Q1/76
Inventor 李红梅刘宏贤
Owner WUXI XINYINYE MACHINERY