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Hobbing clamp for clamping a plurality of parts with big gear rings

A technology of gear hobbing fixture and large ring gear, which is applied in the field of fixtures, can solve problems such as difficult to reliably guarantee hobbing accuracy, poor centering accuracy of large gear ring parts, inconsistent deformation, etc., to achieve reliable combination, realize force transmission, The effect of ensuring hobbing accuracy

Active Publication Date: 2014-04-09
CHONGQING MACHINE TOOL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the large elastic deformation of the large ring gear parts in the free state, and the deformation size and shape of each large ring gear part are inconsistent, and the inner holes of each large ring gear part are matched with the mandrel clearance, which causes the traditional The centering accuracy of the fixture on the large ring gear parts is poor, not only is it very difficult to clamp the workpiece G, but also the hobbing accuracy is difficult to be reliably guaranteed

Method used

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  • Hobbing clamp for clamping a plurality of parts with big gear rings
  • Hobbing clamp for clamping a plurality of parts with big gear rings
  • Hobbing clamp for clamping a plurality of parts with big gear rings

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0023] Such as figure 1 , 2 , 3, a gear hobbing fixture for clamping multiple large ring gear parts, the gear hobbing fixture is composed of a pressing part and a centering part. Wherein, the centering part consists of a base 1, a bracket 2, a support plate 3, an expansion block 4, a first spring 5, a taper sleeve 6, an annular positioning plate 7, a return spring 8, a force transmission block 9, a second spring 10, The positioning sleeve 11 and the pull-down rod 12 are formed. Wherein, a cylindrical bracket 2 is vertically provided on the top surface of the base 1, and the axis lines of these two parts are on the same straight line. There is a support plate 3 on the outside of the bracket 2, which is fixed to the cylindrical boss at the lower end of the support plate 2, and the outer edge of the top surface of the support plate 3 has a ring-shaped side wa...

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Abstract

The invention discloses a hobbing clamp for clamping a plurality of parts with big gear rings. The hobbing clamp for clamping the parts with the big gear rings comprises a pressing portion and a centering portion, wherein the centering portion comprises a base, a first spring, a locating sleeve, force transmission blocks, a lower pull rod and the like, a support is arranged on the top surface of the base, the support is sleeved with a supporting disk, the pressing portion comprises an upper pull rod and a press plate, the upper pull rod is sleeve with a disk spring and a pressing sleeve in sequence from top to bottom, the disk spring and the pressing sleeve are sleeved with a bushing in a spaced mode, a supporting plate is arranged at the bottom of the press plate, the top surface of the supporting plate is a big-end-down conical surface, the conical surface is attached to the bottom surface of the press plate, the lower end of the supporting plate is fixedly sleeved with a gland, the lower end of the upper pull rod is provided with a T-shaped portion, and the T-shaped portion penetrates through a small-diameter section of a center hole of a taper sleeve and a center hole of a reset spring, and then is clamped into a large-diameter section of a cylindrical hole formed by inner surfaces of all the force transmission blocks. According to the hobbing clamp for clamping the parts with the big gear rings, centering of workpieces with big gear rings can be well carried out through expansion blocks, the workpieces can be tightly pressed at the same time, and centering accuracy can be ensured.

Description

technical field [0001] The invention belongs to the field of fixtures, in particular to a hobbing fixture for clamping a plurality of large ring gear parts. Background technique [0002] The large ring gear part is a widely used part. Generally, multiple large ring gear parts (that is, the workpiece G) are placed outside the mandrel during gear hobbing, and the inner holes of each large ring gear part are matched with the mandrel. Then press the top surface of the uppermost large ring gear part with a pressure plate, so that multiple large ring gear parts are hobbed at the same time. [0003] Due to the large elastic deformation of the large ring gear parts in the free state, and the deformation size and shape of each large ring gear part are inconsistent, and the inner holes of each large ring gear part are matched with the mandrel clearance, which causes the traditional The centering accuracy of the fixture on the large ring gear part is poor, not only it is very difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F23/06
Inventor 刘宇陈周李明伟
Owner CHONGQING MACHINE TOOL GROUP
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