Three-jaw chuck for clamping synchronous belt pulleys

A technology of synchronous pulley and three-jaw chuck, which is applied in the direction of the chuck, can solve the problems of inconvenient grasp of the clamping force of the synchronous pulley and the influence of hole processing efficiency, etc., and achieve a simple structure, easy processing and manufacturing, and a large contact area. Effect

Inactive Publication Date: 2013-12-25
CHENGDU SILVERTECH TIMING PULLEYS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem in the above prior art that the clamping force of the three-jaw chuck on the synchronous pulley is inconvenient to grasp and has a great influence on the hole machining efficiency, the present invention provides a three-jaw chuck for clamping the synchronous pulley

Method used

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  • Three-jaw chuck for clamping synchronous belt pulleys
  • Three-jaw chuck for clamping synchronous belt pulleys

Examples

Experimental program
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Effect test

Embodiment 1

[0026] like figure 1 and figure 2 As shown, a three-jaw chuck for clamping a synchronous pulley includes a chuck body 1 and three jaws 2, the pressing surface of each of the jaws 2 is set as a circular arc surface, and also includes three Each arc-shaped pad 3 is fixedly connected to the pressing surface of a claw 2.

[0027] The pressing surface of the claw 2 in the form of an arc is fitted to the outer surface of the arc pad 3, and the inner surface of the arc pad 3 is fitted to the side of the synchronous pulley. The force between the pulleys, and the contact surface of the arc surface is conducive to increasing the contact area and reducing the force per unit area, so as to avoid damage to the side of the synchronous pulley when the clamping force is large.

Embodiment 2

[0029] This embodiment is further improved on the basis of embodiment 1, as figure 1 and figure 2 As shown, each of the arc pads 3 is provided with a plurality of rack-shaped grooves on the arc surface near the center of the chuck body 1, and each of the rack-shaped grooves is aligned with the direction of the chuck body. 1 parallel to the centerline.

[0030] A plurality of rack-shaped grooves are used to engage with the rack of the pulley when the present invention clamps the synchronous pulley, so that the force between the toothed rack of the synchronous pulley and the groove can prevent the synchronous pulley from moving relative to the claw 2 rotation, that is, the synchronous pulley can be fixed on the present invention without a large clamping force, which is beneficial to protect the synchronous pulley.

[0031] It also includes a plurality of connecting bolts 4, each of the claws 2 is provided with bolt holes, and each of the arc pads 3 is provided with internal t...

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PUM

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Abstract

The invention discloses a three-jaw chuck for clamping synchronous belt pulleys. The three-jaw chuck comprises a chuck body (1) and three clamping jaws (2), and is characterized in that a compression surface of each clamping jaw (2) is an arc surface, the three-jaw chuck further comprises three arc-shaped pads (3), and each arc-shaped pad (3) is fixedly connected onto the compression surface of the corresponding clamping jaw (2). The three-jaw chuck has the advantages that the three-jaw chuck is simple in structure and convenient to manufacture, and is favorable for preventing racks of the synchronous belt pulleys from being damaged when the synchronous belt pulleys are clamped by the three-jaw chuck.

Description

technical field [0001] The invention relates to the field of synchronous pulley manufacturing equipment, in particular to a three-jaw chuck for clamping a synchronous pulley. Background technique [0002] The processing method of the synchronous pulley in the prior art generally adopts the method of processing the hole first, and then processing the teeth. However, due to the large radial force that the pulley needs to bear in the gear hobbing process, in the gear hobbing process, riveting the retaining ring hole Due to the large force between the workpiece clamping devices, it is easy to cause the deformation of the riveting hole, which is not conducive to the installation of the back ring of the synchronous pulley. [0003] However, turning holes is easy to realize, and hobbing is more difficult than turning holes. Therefore, in the prior art, there is also a process of machining the teeth first and then machining the holes, that is, after the hobbing is completed, the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/103
Inventor 刘选明刘黎竞
Owner CHENGDU SILVERTECH TIMING PULLEYS MFG
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