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A clamping mechanism for grinding metallographic test block

A technology for grinding metallographic test blocks and clamping mechanisms, which is applied in the preparation of test samples, etc., can solve the problems of affecting the grinding and polishing effect of spectrum/metallographic test blocks, poor versatility, and fast response of cylinder movement, etc., to achieve Avoid heat conduction to the hand-held part, avoid instrument swing, work efficiency, energy saving and environmental protection

Inactive Publication Date: 2018-09-28
ZHEJIANG 81 PRECISION MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual use, according to the applicant's response, although the holder does not need to be held by hand, which eliminates the problem of inlaying and fixing the traditional sample, there are still some shortcomings. The above-mentioned holder uses the piston rod of the cylinder to extend and retract Then realize the opening and closing clamping of the upper chuck and the lower chuck. This process requires accurate calculation of the movement stroke of the cylinder piston rod and the opening and closing distance between the upper chuck and the lower chuck. The process is complicated, and at the same time due to The cylinder movement has fast response and high rigidity, and the clamping force between the upper chuck and the lower chuck is prone to be too large or too small during use, which affects the grinding and polishing effect of the spectroscopic / metallographic test block, and the upper grip of the holder The chuck body and the lower chuck body are designed integrally with the upper and lower chuck rods respectively. When the upper chuck body and the lower chuck body are severely worn, the entire holder will be scrapped and the cost will be high
[0004] Chinese utility model patent 201520015232.4 discloses a clamping device for metallographic test block grinding, including a working upper jaw and a working lower jaw. The working end of the upper jaw corresponds to the working end of the lower jaw. There is a card through hole and a horizontal rectangular through hole in the handle end. The card position through hole is provided with a sliding card position. Hollow rotating screw, the hollow rotating screw meshes with the rack at the sliding clamping end, a screw rod runs through one end of the working upper jaw shell, the hollow rotating screw and the other end of the working upper jaw shell in turn, and then tightens to form a clamping device. To achieve the purpose of stably clamping the metallographic sample, but the structure is complicated, the cost is high, the operation is cumbersome, and the work efficiency is low. At the same time, the device is only suitable for clamping a metallographic test block of one shape and type, and the versatility is not good. powerful

Method used

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  • A clamping mechanism for grinding metallographic test block
  • A clamping mechanism for grinding metallographic test block
  • A clamping mechanism for grinding metallographic test block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 2 As shown, the present invention provides a kind of clamping mechanism that is used for polishing metallographic test block, comprises handle part 1, upper clamp 2 and lower clamp 3, and described lower clamp 3 is arranged on the top of handle part 1, upper clamp 2 and The lower clamp 3 is rotated up and down through the connecting piece 4, and a positioning adjustment mechanism 5 for controlling its opening and closing is also provided between the upper clamp 2 and the lower clamp 3; the upper clamp 2 includes an upper clamping rod 21 and a The upper chuck 22 of the metallographic test block, the upper chuck 22 is arranged on the working end of the upper clamping rod 21; the lower clamp 3 includes the lower clamping rod 31 and the lower clamping rod 31 for carrying the metallographic test block. Collet 32, the lower chuck 32 is arranged on the working end of the lower clamping rod 31; The metallographic test block matches the first placement groove 22...

Embodiment 2

[0040] image 3 It is a schematic structural view of Embodiment 2 of a clamping mechanism for grinding a metallographic test block of the present invention; as image 3 with Figure 4 As shown, the parts that are the same as or corresponding to those in Embodiment 1 use the reference numerals corresponding to Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. This embodiment two and figure 2 The difference of the first embodiment shown is that several upper chucks 22 and lower chucks 32 are arranged in a horizontal array on the working ends of the upper clamping rod 21 and the lower clamping rod 31 respectively. Wherein, the plurality of upper clamps 22 and the corresponding lower clamps 32 are of the same shape and type, and the first placement groove 221 and the corresponding second placement groove 321 are semicircular, oval, square or A type of other polygon. Moreover, several upper chucks 22 and lower chucks 32 a...

Embodiment 3

[0042] Figure 5 It is a schematic structural view of Embodiment 3 of a clamping mechanism for grinding a metallographic test block of the present invention; as Figure 5 As shown, the parts that are the same as or corresponding to those in Embodiment 2 use the corresponding reference numerals as in Embodiment 2. For the sake of simplicity, only the differences from Embodiment 2 will be described below. This embodiment three and image 3 The difference of the second embodiment shown is that: the plurality of upper clamps 22 and the corresponding lower clamps 32 can be of different shapes, the first placement groove 221 and the corresponding second placement groove 321 It is a variety of semicircle, ellipse, square or other polygons. Wherein, several upper chucks 22 and lower chucks 32 are respectively fixed as a whole by pin shafts 7, and the heights of a plurality of metallographic test blocks are consistent, so that grinding and polishing of a plurality of metallographic t...

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Abstract

The invention relates to a clamping mechanism for polishing a metallographic test block. The clamping mechanism comprises a handholding part, an upper clamp and a lower clamp, wherein the upper clamp and the lower clamp are longitudinally rotationally connected through a connection part; a positioning adjustment mechanism is arranged between the upper clamp and the lower clamp; the upper clamp comprises an upper clamping rod and an upper clamping head, the upper clamping head is arranged at the work end of the upper clamping rod, and the lower clamp comprises a lower clamping rod and a lower clamping head corresponding to the upper clamping head in the longitudinal direction; a first accommodating groove and a second accommodation groove are formed in the upper clamping head and the lower clamping head respectively; the positioning adjustment mechanism comprises a knob part, a screw rod and a rotation part, the screw rod penetrates through the upper clamping rod, the knob part is fixed at the upper end of the screw rod, and the rotation part is fixed at the bottom end of the screw rod and abuts against the lower clamping rod. With the adoption of the simple mechanical structure, the upper clamp and the lower clamp can be opened, closed and fixed, the upper clamping head and the lower clamping head can be detachably replaced respectively, and the clamping mechanism is suitable for clamping and fixing metallographical test blocks in different shapes and models, is high in universality, high in work efficiency and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of matching tools for inspection equipment, in particular to a clamping mechanism for grinding a metallographic test block. Background technique [0002] Metallographic analysis is an important reference for material processing and heat treatment process formulation, and the quality of metallographic sample preparation directly affects the results of metallographic analysis. Such as figure 1 As shown, the existing metallographic sample adopts the method of mosaic, by providing a plurality of sample placement through holes 1' on the sample holding disc, each sample placement through hole is filled with filler 2', gold The corresponding sample is placed on the filler 2', pressurized at a single point to press it into the sample placement through hole 1' to achieve fixation, and then grind and polish on the high-speed rotating grinding wheel by holding the sample holding disc. Although this method can realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/32
CPCG01N1/32
Inventor 陈仁波袁乔林张指标许磊蒋思惠
Owner ZHEJIANG 81 PRECISION MACHINERY CO LTD