CN201016896Y - Clamping device for milled specimens - Google Patents

Abstract

The utility model discloses a clamping device for milling samples, which comprises a clamp body on which workpieces are placed. It also includes two pressing blocks, respectively pressed on both ends of the workpiece, and the pressing blocks are fixed on the clamping body through a pair of pressing bolts; a pair of supporting parts are supported between the clamping body and the pressing block; two positioning blocks, It is fixed on the clamp body, which is located near the two ends of one side of the workpiece; a pair of fixed blocks are fixed on the clamp body on the other side of the workpiece, and there are threaded holes on it; a pair of jacking bolts are respectively installed on the fixed In the threaded hole of the block; two moving blocks are placed between the workpiece and each jacking bolt, and the moving block, workpiece and positioning block are clamped by rotating the jacking bolt. The utility model has the advantages of simple structure and convenient operation, which improves the processing precision of milling and processing tensile samples, improves the work efficiency of processing tensile samples, and reduces labor intensity.

Description

Clamping device for milled specimens

technical field

The utility model relates to a machine tool auxiliary clamping device, in particular to a milling machine clamp used for milling plate tensile samples or other workpieces in steel mills.

Background technique

The sides of tensile specimens in steel mills are usually processed on a milling machine. There are mainly two types of auxiliary clamping tools for specimens: one is to use two iron plates to respectively compress the two ends of the specimen, and then perform milling. This kind of clamping method needs to be corrected every time the clamping is performed, the clamping effect is poor, the workpiece is easy to move when the milling force is large, and the processing efficiency is very low; the second is to use a flat iron plate, and install the The notched iron plate with the same shape as the tensile specimen is then compressed with a pressure plate. With this method of clamping, since there is always a gap between the notch and the sample, it is easy to move during milling and affect the processing quality.

The No. 02215440.X Chinese utility model patent specification announced on January 1, 2003 has just disclosed a kind of sample preparation fixture, comprises upper and lower pressure plate, left and right fixture fixing seat, fixture fixing plate. When in use, first remove the upper platen, put the sample into the lower platen and the fixing groove, then put the upper platen into it, clamp the sample, fix it with bolts, and then cover it with a protective cover. At this point, the fixture can be put into the milling machine for processing. Due to the complex structure, this kind of fixture has the disadvantage of inconvenient installation.

Contents of the invention

The purpose of the utility model is to provide a clamping device for milling samples, which has simple structure, convenient operation, accurate positioning, can improve the processing efficiency of tensile samples, and reduce labor intensity.

The purpose of this utility model is achieved in that:

A clamping device for milling a sample, comprising a clamping body on which a workpiece is placed; two pressing blocks are pressed on both ends of the workpiece respectively, and the pressing blocks are fixed on the clamping body by a pair of pressing bolts; For the supporting part, the top is between the clamp body and the pressure block; two positioning blocks are fixed on the clamp body, located near the two ends of one side of the workpiece; a pair of fixed blocks are fixed on the clamp body on the other side of the workpiece There are threaded holes on it; a pair of jacking bolts are respectively installed in the threaded holes of the fixed block; two moving blocks are placed between the workpiece and each jacking bolt, and the moving block is moved by rotating the jacking bolt. , The workpiece and the positioning block are clamped.

The cross-section of the pressing block is T-shaped.

A transverse waist-shaped hole is opened on the pressing plate of the clamping device, and a notch corresponding to the notch of the milling machine table is opened on the clamp body, and the pressing bolt passes through the waist-shaped hole and the notch.

The supporting parts are supporting bolts and adjusting nuts.

The support bolts pass through the clamp body.

Compared with the prior art, the utility model has the following advantages and positive effects due to the adoption of the above-mentioned technical scheme:

The utility model has the advantages of simple structure and convenient operation, and can smoothly process tensile samples of various specifications meeting technical quality requirements on the milling machine, thereby improving production efficiency and processing precision.

Description of drawings

Fig. 1 is the folder concrete schematic diagram of the present utility model;

Figure 2 is a schematic cross-sectional view of the clamping device of the present invention;

Fig. 3 is a top view of the clamping device of the present invention.

Detailed ways

As shown in Figures 1, 2 and 3, the milling clamping device of one embodiment of the present invention is placed on the workbench of the vertical milling machine. The clamping device comprises a clamping body 1, a compression nut 2, a positioning block 3, a moving block 4, a briquetting block 5, a compression bolt 6, an adjustment nut 7, a fixed block 8, a jacking bolt 9, and a support bolt 10. The clamp body 1 (as shown in Figure 1) is a rectangular parallelepiped steel plate. The workpiece is placed on the clamp body 1. There is a symmetrical notch 11 on both sides of the plate surface. Corresponding to the mouth, it is used for fixed connection with the workbench of the machine tool and plays a positioning role. There are two symmetrical positioning blocks 3 on one side of the clamp body 1, which are used to position the workpiece to be clamped so that the workpiece can be kept parallel to the horizontal direction of the machine tool workbench after it is installed. The positioning block 3 is located near the two ends of the workpiece so as not to affect the processing of the workpiece. There are four corresponding screw holes 12 on the other side of the clamp body 1 for installing the fixing block 8 . The position of the fixed block 8 is also set near the two ends of the workpiece, and the jacking bolt 9 is threadedly connected with the fixed block 8. When the workpiece is clamped, the moving block 4 is placed between the jacking bolt 9 and the workpiece, and the jacking bolt is rotated. 9. Press the workpiece to the positioning block 3, so as to realize the clamping of the workpiece in the front and rear direction.

The pressing block 5 is a T-shaped pressing plate. The pressing bolt 6 passes through the notch 11 and the waist-shaped hole 13 of the pressing block 5, so that the pressing block 5 can move left and right. When clamping, the T-shaped part is close to the end of the workpiece. , which limits the movement of the workpiece in the left and right directions. The supporting bolt 10 and the adjusting nut 7 play a supporting role on the pressing block 5, and the supporting distance can be adjusted by turning the adjusting nut 7. After adjusting to an appropriate position, tighten the pressing nut 2 to keep the pressing block 5 The balance of the workpiece restricts the workpiece from moving up and down, so that the pressing is strong and meets the requirements of milling.

In this embodiment, the connection between the pressure block 5 and the clamping body 1 is realized by the support bolt 10 and the adjusting nut 7 mentioned above. Other support methods can also be used, such as loading a supporting member between the briquetting block 5 and the clamping body 1, and adjusting the spacing thereof through an elastic member so as to press against the briquetting block 5, which also has the same effect.

The assembly process of the present utility model is as follows:

First, the clamping device for milling is placed on the workbench of the vertical milling machine, and is tightly connected with the workbench with support bolts 10 . Put on the tensile sample, close the positioning block 3 and then install the briquetting block 5, and screw on the compression nut 2. Adjust the adjusting nut 7 fixed by the support bolt 10, and tighten the compression nut 2. Make it fasten in left and right, up and down directions. Load onto fixed block 8, tighten jacking bolt 9, make it promote mobile block 4 and be close to workpiece, and workpiece does not loosen before and after. After restricting the movement of the workpiece from up and down, left and right, and front and back, start the milling machine to process both sides of the tensile sample to the required size requirements.

Claims (5)

1. A clamping device for a milling sample, comprising a clamp body, the workpiece is placed on the clamp body, and it is characterized in that it also includes: Two pressing blocks are respectively pressed on both ends of the workpiece, and the pressing blocks are fixed on the clamp body through a pair of pressing bolts; A pair of supporting parts, supported between the clamp body and the pressing block; Two positioning blocks, fixed on the clamp body, are located near the two ends of one side of the workpiece; A pair of fixed blocks, fixed on the clamp body on the other side of the workpiece, with threaded holes; A pair of jacking bolts are respectively installed in the threaded holes of the fixing block; Two moving blocks are placed between the workpiece and each clamping bolt, and the moving block, the workpiece and the positioning block are clamped by rotating the clamping bolt. 2. The clamping device for milling samples according to claim 1, characterized in that: the cross-section of the pressing block is T-shaped. 3. The clamping device for milling samples according to claim 2, characterized in that: the press plate is provided with a transverse waist-shaped hole, and the clamp body is provided with a notch corresponding to the notch of the milling machine table, The compression bolt passes through the waist hole and the notch. 4 . The clamping device for milling samples according to claim 1 , 2 or 3 , characterized in that: the support members are support bolts and adjusting nuts. 5. The clamping device for milling samples according to claim 4, characterized in that: the supporting bolts pass through the clamping body.

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