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Multi-point equal clamping device

A clamping device and equal technology, applied in the field of clamping devices, can solve the problems of unfavorable objects, stable clamping and movement, increase of defective rate of thin-walled products, unfavorable product quality maintenance, etc., to ensure clamping contact area and eliminate clamping The weakening of the force and the effect of reducing the damage rate of the workpiece

Pending Publication Date: 2018-10-26
苏州磐岩精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the object to be clamped is an irregular plane, the clamping of the plane will cause uneven force on the surface of the object, the relative contact area will also decrease, and the clamping degree of the corresponding object will also decrease, which is not conducive to the stable clamping of the object. take mobile
At the same time, when there are fewer gripping contact points, the concentrated force will cause the object to deform, which is not conducive to the maintenance of product quality, resulting in product waste
When the product is a thin-walled product, the contact area between the regular or circular jaws and the product is relatively concentrated, resulting in uneven force, which is more likely to cause an increase in the defect rate of thin-walled products and increase production costs.

Method used

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Examples

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 As shown, the clamping device is a three-jaw chuck. The three-jaw chuck utilizes a finger driving mechanism to radially move three movable fingers 1 evenly distributed on the chuck body 3, and then performs clamping and picking operations on the clamped object. The clamping portions 11 of the three claws 1 are arranged in an arc-shaped structure, and it can be known from the working principle of the clamping jaws that the three claws 1 have a fixed clamping center. When the three claw fingers 1 cooperate to carry out the clamping operation, the three arc-shaped clamping parts 1 form a circular accommodation area, and then the picking operation of the circular workpiece can be realized. At the same time, the arc-shaped structure can increase the contact area with the object, ensuring the clamping effect of irregular wor...

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Abstract

The invention discloses a multi-point equal clamping device applied to the field of mechanical tools. The multi-point equal clamping device is characterized by structurally comprising a plurality of claw fingers and a claw finger drive device, wherein each claw finger comprises a clamping part, and the position, towards a clamped object, of each clamping part is uniformly equipped with a pluralityof hydraulic cylinders; each hydraulic cylinder comprises an oil cylinder piston and a pressure cavity; the pressure cavity on the same claw finger is in communication; and each oil cylinder piston comprises a clamping end which extends to the outside of the corresponding clamping part. The clamping ends of the hydraulic cylinders are utilized to perform clamping operation; pressure cavities of the hydraulic cylinders communicate with one another, so that the position of hydraulic oil also can be transferred according to different pressure, and therefore, the occurrence of a condition that acting force between the clamping ends and workpieces is too high is avoided. Circulating action of the hydraulic oil guarantees stress uniformity of the surface of the clamped object, so that a workpiece damage rate is effectively reduced, and the take-up effect of the clamped object is guaranteed. Meanwhile, weakening, caused by stress deformation, of clamping force can be eliminated during claw clamping by uniform stress, so that guarantee is provided for clamping force, on the clamped objects, of the claw fingers.

Description

technical field [0001] The invention relates to a multi-point equal clamping device applied in the field of mechanical tooling. Background technique [0002] In the industrial production process, in order to improve industrial automation, the scope of application of the clamping device is gradually expanded. Usually, the clamping device clamps the clamped object through several fingers. Under the action of the claw finger driving device, the fingers can move back and forth relative to each other, so as to realize the stable clamping and movement of the objects by the fingers. A common clamping jaw has two or three fingers, and the clamping center of the clamping jaw is fixed, thereby ensuring the stability of the clamping operation. The contact surface between the jaw and the object is usually a planar structure, so that the contact with the object is stable. However, when the object to be clamped is an irregular plane, the clamping of the plane will cause uneven force on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/103B23B31/16
CPCB23B31/103B23B31/16287
Inventor 吴双吴宇轩
Owner 苏州磐岩精密机械有限公司
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