阅读说明：本技术 一种全自动磨抛机磨制不规则试样的夹具 (Fixture for grinding irregular sample by full-automatic grinding and polishing machine ) 是由 白雅琼 郎荣彪 李文亚 刘莉 于 2021-07-01 设计创作，主要内容包括：本发明公开了一种全自动磨抛机磨制不规则试样的夹具,包括圆盘,圆盘沿其圆周方向分布式设置有6个不同形状尺寸的夹持孔,包括两个圆形、两个矩形和两个扇形,各夹持孔的外侧端设置有轴向的螺纹孔且螺纹孔内适配有用于对不同尺寸的样品起到限位的作用的螺栓；圆盘中心有三个与全自动磨抛机连接件相配合的螺栓孔,三个螺栓孔位于以圆心为中心的正三角形的三个顶角处,角平分线与夹持孔的对称轴呈30°夹角。本发明的目的是提供一种全自动磨抛机磨制不规则试样的夹具,该夹具适用于形状不规则的试样的磨制,并且可以直接应用于全自动磨抛机上,结构简单,设计合理,不仅改善了制样质量,释放了操作人员的双手,提高了工作效率。(The invention discloses a clamp for grinding an irregular sample by a full-automatic grinding and polishing machine, which comprises a disc, wherein the disc is provided with 6 clamping holes with different shapes and sizes in a distributed manner along the circumferential direction of the disc, the clamping holes comprise two circles, two rectangles and two fan-shaped parts, the outer side end of each clamping hole is provided with an axial threaded hole, and a bolt for limiting samples with different sizes is adapted in the threaded hole; three bolt holes matched with the connecting piece of the full-automatic grinding and polishing machine are arranged in the center of the disc, the three bolt holes are positioned at three vertex angles of a regular triangle taking the circle center as the center, and an included angle of 30 degrees is formed between the angular bisector and the symmetry axis of the clamping hole. The invention aims to provide a clamp for grinding an irregular sample by a full-automatic grinding and polishing machine, which is suitable for grinding the sample with an irregular shape, can be directly applied to the full-automatic grinding and polishing machine, has a simple structure and reasonable design, improves the sample preparation quality, releases both hands of an operator and improves the working efficiency.)

1. The utility model provides a full-automatic anchor clamps of throwing machine system irregular sample that grinds which characterized in that: the sample clamp comprises a disc with the diameter phi of 140mm and the thickness of 10mm, wherein 6 clamping holes with different shapes and sizes are distributed in the disc along the circumferential direction of the disc and comprise two circles, two rectangles and two sectors, an axial threaded hole is formed in the outer side end of each clamping hole, and bolts for limiting samples with different sizes are adapted in the threaded holes; the center of the disc is provided with three bolt holes matched with a connecting piece of the full-automatic grinding and polishing machine, the three bolt holes are positioned at three vertex angles of a regular triangle taking the circle center as the center, and an included angle of 30 degrees is formed between an angular bisector and a symmetry axis of the clamping hole.

2. The clamp for grinding irregular samples by the full-automatic grinding and polishing machine according to claim 1, is characterized in that: the clamping holes with the same shape are symmetrically distributed by round points.

3. The clamp for grinding the irregular test sample by the full-automatic grinding and polishing machine according to claim 1 or 2, is characterized in that: the included angle between the symmetrical axes of the adjacent clamping holes is 60 degrees.

4. The clamp for grinding irregular samples by the full-automatic grinding and polishing machine according to claim 1, is characterized in that: the connecting piece of the full-automatic grinding and polishing machine is provided with three limiting grooves, and the three limiting grooves correspond to the three limiting pins on the full-automatic grinding and polishing machine in position.

5. The clamp for grinding irregular samples by the full-automatic grinding and polishing machine according to claim 1, is characterized in that: the outer side end of each clamping hole is provided with 2 axial screw holes, and the screw holes are internally provided with bolts which are used for limiting samples of different sizes.

Technical Field

The invention relates to the field of metallographic sample preparation of materials, in particular to a clamp for grinding an irregular sample by a full-automatic grinding and polishing machine.

Background

At present, the types and the quantity of steel products related to metallographic analysis are more and more, and before the metallographic analysis, a metallographic sample needs to be prepared for observation and inspection. The metallographic specimen is ground manually, an operator generally needs to hold the specimen with hands to be close to a grinding and polishing machine for grinding and polishing, and the operation can cause great difference in specimen preparation quality due to the difference of specimen preparation technologies of operators, and the specimen preparation efficiency is low. The full-automatic grinding and polishing machine is used for preparing the sample, so that the time can be saved and the working efficiency can be improved while the good sample preparation quality is obtained.

The clamp seat on the full-automatic grinding and polishing machine is 6 circular holes with the same size, is suitable for grinding round samples with fixed size or embedded patterns, and can not directly grind rectangular or irregular samples.

A metallographic specimen grinding and polishing clamp (CN 111843827A) is designed, the clamp comprises a base, a clamping mechanism and a support slide rail, the middle of the base is hollow, a grinding and polishing disk is arranged at the hollow part of the base, the support slide rail is fixedly arranged on the base at a position close to the hollow part, the clamping mechanism comprises a slide bar, a clamping hole is arranged on the slide bar, the slide bar can move up and down along the support slide rail, a clamping piece is arranged on the clamping hole and used for clamping a metallographic specimen, the clamp can realize automatic grinding and polishing, but the sample is easy to separate from the millstone in the vertical direction when ground to a certain degree, the sample can be attached to the millstone only by manually moving the sample, and the clamping piece in the device adopts the lower open-slot type clamp splice to carry out the centre gripping to the sample, requires that the metallographic sample by the both sides depth of parallelism of centre gripping is better, and is more difficult to the sample centre gripping of irregularly shaped.

Disclosure of Invention

The invention aims to provide a clamp for grinding an irregular sample by a full-automatic grinding and polishing machine, which is suitable for grinding the sample with an irregular shape, can be directly applied to the full-automatic grinding and polishing machine, has a simple structure and reasonable design, improves the sample preparation quality, releases both hands of an operator and improves the working efficiency.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention relates to a clamp for grinding an irregular sample by a full-automatic grinding and polishing machine, which comprises a disk with the diameter phi of 140mm and the thickness of 10mm, wherein 6 clamping holes with different shapes and sizes are distributed on the disk along the circumferential direction of the disk and comprise two circles, two rectangles and two sectors, an axial threaded hole is formed in the outer side end of each clamping hole, and a bolt for limiting samples with different sizes is adapted in the threaded hole, so that the stability and the non-deflection of the samples in the clamping holes are ensured; the center of the disc is provided with three bolt holes matched with a connecting piece of the full-automatic grinding and polishing machine, the three bolt holes are positioned at three vertex angles of a regular triangle taking the circle center as the center, and an included angle of 30 degrees is formed between an angular bisector and a symmetry axis of the clamping hole.

Furthermore, the clamping holes with the same shape are symmetrically distributed by round points.

Further, the included angle between the symmetry axes of the adjacent clamping holes is 60 degrees.

Furthermore, three limiting grooves are formed in the connecting piece of the full-automatic grinding and polishing machine and correspond to three limiting pins on the full-automatic grinding and polishing machine in position.

Furthermore, the outer side end of each clamping hole is provided with 2 axial threaded holes, and the threaded holes are internally and properly provided with bolts for limiting samples of different sizes.

Compared with the prior art, the invention has the beneficial technical effects that:

1. the clamp can simultaneously clamp 6 irregular-shaped samples, so that the working efficiency is improved, and the sample preparation quality is improved.

2. This anchor clamps centre gripping hole has adopted three kinds of different shapes, can select suitable centre gripping hole according to the irregular degree of sample shape, and every sample centre gripping hole all screws in two pieces of bolts and carries on spacingly to the sample, and the regulation through the bolt can be applicable to the sample of grinding size, shape difference.

3. The clamp can be arranged on a full-automatic grinding and polishing machine, the clamping hole on the clamp is positioned right below the telescopic load of the full-automatic grinding and polishing machine, after a sample is clamped, the moving load is lowered from the upper part of the sample and vertically applied to the sample, the sample is ensured to be attached to a grinding and polishing disc in real time in the grinding and polishing process, and the hands of an operator are thoroughly released.

Drawings

The invention is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic view showing the overall configuration of an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of a clamp connector on the full-automatic polishing machine;

fig. 3 is a schematic view of the overall construction of the present invention mounted to a connector.

Description of reference numerals: 1-clamping hole, 2-bolt, 3-bolt hole, 4-connecting piece and 5-limiting groove.

Detailed Description

As shown in fig. 1, a fixture for grinding an irregular sample by a full-automatic grinding and polishing machine, which comprises a disk with a diameter of phi 140mm and a thickness of 10mm, wherein 6 clamping holes 1 with different shapes and sizes are arranged at the edge of the disk, the fixture comprises two circles, two rectangles and two sectors, an axial threaded hole is arranged at the outer side end of each clamping hole 1, and a bolt 2 for limiting samples with different sizes is adapted in the threaded hole, so that the stability and the non-deflection of the samples in the clamping holes are ensured; the clamping holes with the same shape are symmetrically distributed by round points, and the included angle between the symmetrical axes of every two adjacent clamping holes 1 is 60 degrees; three bolt holes 3 matched with the connecting piece of the full-automatic grinding and polishing machine are formed in the center of the disc, the three bolt holes 3 are located at three vertex angles of a regular triangle with the center of the circle as the center, an included angle of 30 degrees is formed between an angular bisector and a symmetry axis of the clamping hole, and the clamp and the connecting piece of the full-automatic grinding and polishing machine are connected through bolts and then can be fixed to the full-automatic grinding and polishing machine.

As shown in fig. 2, the clamp connecting piece 4 on the full-automatic grinding and polishing machine is provided with three limiting grooves 5, and after the positions of the three limiting grooves correspond to those of three limiting pins on the full-automatic grinding and polishing machine, the clamping head of the connecting shaft can be vertically upwards inserted into a clamping buckle on the full-automatic grinding and polishing machine.

As shown in fig. 3, the clamp can be fixed to the full-automatic polishing machine after being connected with the connecting rod of the full-automatic polishing machine by the bolt.

The clamp is arranged on the full-automatic grinding and polishing machine, the 6 clamping holes on the clamp are just positioned under the telescopic load of the full-automatic grinding and polishing machine, the sample is placed in the clamping holes, the positions of the sample in the clamping holes are adjusted, the bolts on the clamping holes are rotated, so that the positions of the sample in the clamping holes are kept stable and do not deflect, the full-automatic grinding and polishing machine is started, the moving load is lowered from the upper side of the sample and vertically acts on the sample, the sample is guaranteed to be attached to a grinding and polishing disc in real time in the grinding and polishing process, and the hands of an operator are thoroughly released.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.