New-type precise jig
A new type of fixture technology, applied in the mechanical field, can solve problems such as workpiece deformation, difficult clamping, and complex structure, and achieve the effect of not being easily deformed
Pending Publication Date: 2019-01-04
斯耐翔精密机械(苏州)有限公司
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Problems solved by technology
[0003] The existing clamping device for workpieces with inner holes not only has a complex structure, but also is difficult to clamp, and at the same time, it is easy to cause deformation of the workpiece during the clamping process
Method used
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[0019] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0020] see figure 1 , The present invention relates to a new precision fixture, which includes a spindle conversion block 1, a conversion chuck 2, a clamping and positioning tool 3 and a pull rod 4.
[0021] The conversion chuck 2 is fixed on the original chuck of the machine tool, and is installed and fixed for the clamping and positioning tool 3 . The conversion chuck 2 is provided with the first installation hole fixedly connected with the original chuck, and the conversion chuck 2 and the original chuck can be locked and fixed with three M12 screws.
[0022] The clamping and positioning tool 3 is located on the front side of the conversion chuck 2, an...
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The invention relates to a new-type precise jig. The new-type precise jig comprises a spindle changeover block, a changeover chuck, a clamping positioning tool and a pull rod, wherein the changeover chuck is fixed on a machine tool; a positioning pipe is arranged at the front end of the clamping positioning tool; the outside diameter of the positioning pipe is smaller than the inside diameter of an inner hole of a workpiece; a tensioning clearance groove is formed in the positioning pipe; the rear end of the pull rod passes through the clamping positioning tool and the changeover chuck sequentially and is in threaded connection with the spindle changeover block; the front end of the pull rod is shaped like an inverted circular truncated cone and matches the positioning pipe of the clampingpositioning tool; the radius of the front end face of the pull rod is slightly greater than the inside diameter of the positioning pipe and slightly smaller than the inside diameter of the inner holeof the workpiece; and the rear end of the spindle changeover block is connected with a spindle of the machine tool. According to the new-type precise jig provided by the invention, after the positioning pipe fits the inner hole of the workpiece, the positioning pipe is stretched by tightening the pull rod, so as to allow the positioning pipe to be stretched completely in the inner hole for fixing, so that the workpiece is not prone to deformation. The new-type precise jig applies to jigging of all workpieces with inner holes.
Description
technical field [0001] The invention relates to a new precision fixture. It belongs to the field of mechanical technology. Background technique [0002] Manufacturing is the general term for all industries related to manufacturing, and it is the pillar industry of a country's national economy. With the rapid development of modern science and technology, electromechanical products are becoming more and more sophisticated and complex, and the replacement speed is accelerated, the modification is frequent, the needs of users are becoming more and more diversified and personalized, and the production of small and medium batches of parts is increasing. This puts forward higher requirements for high precision, high efficiency and high flexibility in the manufacturing industry, and provides a fast, efficient, and low-cost manufacturing market that meets different processing needs. [0003] The existing clamping device for a workpiece with an inner hole not only has a complex stru...
Claims
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IPC IPC(8): B23Q3/12
CPCB23Q3/12
Inventor 李坚谢建文庞智充
Owner 斯耐翔精密机械(苏州)有限公司