Clamping device for three-coordinate measurement of workpiece

A three-coordinate measurement and clamping technology, applied in the field of measurement, can solve problems such as the inability to reflect the assembly size of the workpiece

CN113001448AActive Publication Date: 2021-06-22广东鸿图武汉压铸有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-06-22

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Abstract

The invention discloses a clamping device for three-coordinate measurement of a workpiece, and belongs to the technical field of measurement. The clamping device comprises a body, a clamping component and an adjusting component, wherein the body is provided with a plurality of positioning pins; the clamping component comprises a plurality of clamping pieces, each clamping piece comprises an air cylinder, a lever and a pressing head, a piston rod of each air cylinder is hinged to one end of the corresponding lever, each air cylinder is provided with a first air port and a second air port which are communicated with two cavities of the air cylinder respectively, and the middle of each lever is rotationally installed on the corresponding air cylinder, and each pressing head is located at the other end of the corresponding lever; and the adjusting component comprises an air source, a pressure regulating valve and a three-position four-way directional control valve, and an air outlet of the air source is communicated with an air inlet of the pressure regulating valve. According to the clamping device for three-coordinate measurement of the workpiece, before three-coordinate measurement is conducted on the workpiece, different clamping forces generated when the workpiece is assembled can be simulated through the air cylinders, and therefore the assembly dimension of the workpiece can be accurately obtained.
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Description

technical field

[0001] The invention belongs to the technical field of measurement, and more specifically relates to a clamping device for three-coordinate measurement of a workpiece. Background technique

[0002] In the field of die-casting, three-coordinate measurement is required before the workpiece leaves the factory, that is, the length, width, height, and hole distance of the workpiece are determined, and these are used as subsequent assembly dimensions to guide assembly.

[0003] Usually, the three-coordinate measurement of the workpiece is: firstly, the positioning device is used to position the workpiece, and then the three-coordinate measurement is performed to determine the assembly size of the workpiece.

[0004] However, some workpieces have large deformations before and after being clamped by bolts, and the deformations are also different under different clamping forces, which makes the three-coordinate measurement in the free state and the three-coordinate me...

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0030] figure 1 It is a schematic structural diagram of a clamping device for three-coordinate measurement of workpieces provided by the embodiment of the present invention, as shown in figure 1 As shown, the clamping device includes a body 1 , a clamping component 2 and an adjusting component 3 .

[0031] The body 1 has a plurality of positioning pins 11 for positioning the positioning holes ...