CN109187153B

CN109187153B - Compact type small punch rod sample preparation tool

Info

Publication number: CN109187153B
Application number: CN201811177070.9A
Authority: CN
Inventors: 宋明; 吴琼; 王玉柱; 孙斌; 付姣哲; 王文慧; 邓雪君; 王炳英; 曹宇光; 蒋文春
Original assignee: China University of Petroleum East China
Current assignee: China University of Petroleum East China
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2021-08-17
Anticipated expiration: 2038-10-10
Also published as: CN109187153A

Abstract

The invention discloses a compact small punch sample preparation tool, wherein the bottom of a platform is circular, a cylindrical boss is arranged in the center, a circle of small holes are formed beside the boss, external threads are arranged on the boss, the diameter of a large disc is the same as that of the bottom of the platform, a circular hole is formed in the center, the diameter of the circular hole is the same as that of the cylindrical boss, internal threads are arranged in the circular hole, the large disc can be sleeved on the boss through threaded fit, a pointer is arranged on the side surface of the large disc and points to angle scales on the side surface of the bottom of the platform, a base is a disc provided with a groove, abrasive paper is placed in the groove, a sample is placed at the bottom of a small cylinder, the small cylinder is embedded into the small holes, the large disc is sleeved on the boss, the pointer is rotated to the required scales to adjust the height of the sample protruding platform, and the sample is polished. The invention has the advantages that the polishing material is more convenient and efficient, the operation is easy, a plurality of small punch experimental slice samples can be polished at one time, and the uniformity and the accuracy of the sizes of the experimental samples are ensured.

Description

Compact type small punch rod sample preparation tool

Technical Field

The invention belongs to the technical field of machinery, and relates to a small punch micro sample preparation tool.

Background

At present, various standard parts are generally used for obtaining test experiments of various material mechanical properties, required relevant data such as mechanical properties are obtained by analyzing the damage process of a standard test piece processed and manufactured according to national standards or international standards, the size of the common standard part is usually several centimeters or even more than ten centimeters, the common standard part mainly aims at components and materials which are easy to obtain, and local accurate mechanical properties are difficult to obtain for some materials which are difficult to obtain, have small structures or have uneven local mechanical properties. The small punch test method can well solve the problem as a new test method, but a sample for the test is very small, and the size of the sample is a small disc with the thickness of about 0.3-0.7 mm and the diameter of less than or equal to 10 mm. When a small punch sample is processed, a wafer prototype is usually processed by a wire electrical discharge machining method, two planes are polished one by using sand paper, the 400-mesh sand paper is polished to 1200 meshes, the surface smoothness is required to be close to a mirror surface, the parallelism of the two planes is required to be +/-0.01 mm, and a screw micrometer is required to be continuously used for measuring the thickness of different points of the sample in the process. When polishing experimental materials, the sample is small and can not be polished by using the existing machine on the market, manual polishing can be performed only by hands, only one sample can be polished at a time during polishing, operation is not easy, and efficiency is very low. In addition, the sample is too small to be held easily during manual polishing, pressure cannot be controlled during application of force by fingers, polishing thickness is too thin sometimes, the sample cannot be used for experiments, and experimental materials are wasted easily. In the process of manually polishing the sample, the finger pressed by the operator is unknowingly worn, and the finger is easily injured due to special pain after the fact that the operator does not feel what he or she is.

Disclosure of Invention

The invention aims to provide a compact small punch sample preparation tool, which has the advantages that the polishing material is more convenient and easy to operate, a plurality of small sheets can be polished at one time, and the waste of manpower and time is reduced; the accuracy of the experimental material is ensured, the material meets the requirements (thickness and parallelism of two planes) required by the experiment, the accuracy of the experiment is ensured, and errors are reduced (by making the surface of the experimental material smoother, the parallelism is higher, the stress concentration is reduced, and the like); avoid experimenter injury (finger wear).

The technical scheme adopted by the invention is that the device comprises a platform, a large disc, a small cylinder and a base; wherein, the platform bottom is circular, central authorities are equipped with cylindrical boss, the other round aperture that is equipped with of boss, be equipped with the external screw thread on the boss, big disc diameter is the same with the platform bottom, central authorities are equipped with the circular port, circular port diameter is the same with cylindrical boss shape, be equipped with the internal thread in the circular port, big disc can overlap on the boss through screw-thread fit, big disc side has a pointer, the angle scale (this angle and bolt axial displacement apart from accurate the corresponding of pointer directional platform bottom side, can control the height of sample salient platform through rotatory this angle), the base is for being equipped with notched disc, place abrasive paper in the recess, the sample is placed in small cylinder bottom, in small cylinder embedding aperture, big disc overlaps on the boss, rotate pointer to required scale, polish the sample.

Further, the thickness of the bottom of the platform is 10mm, the diameter of the bottom of the platform is 50mm, the diameter of the boss is 25mm, the height of the boss is 40mm, and the boss is provided with an external thread with a thread pitch of 3 mm.

Furthermore, the number of the small holes is 12, the diameter of the small holes is 10mm, and the side face of the bottom of the platform is engraved with an angle which is 360 degrees in total.

Further, the thickness of the large disc is 10mm, the diameter is 50mm, the pointer is a cuboid, the length is 20mm, the width is 4mm, and the height is 2 mm.

Furthermore, the number of the small cylinders is the same as that of the small holes, and the small cylinders can be matched with the small holes.

Further, the radius of the base is 100mm, the height is 10mm, the radius of the groove is 90mm, and the depth is 5 mm.

Drawings

FIG. 1 is a schematic diagram of the construction of an abrasive article;

figure 2 is a schematic view of the abrasive tool mounting configuration.

In the figure, 1 is a platform, 2 is a large disc, 3 is a small cylinder, 4 is a base, 5 is a sample, 101 is a boss, 102 is a small hole, 201 is a pointer.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

The small punch style grinding tool of the invention is shown in fig. 1 and fig. 2, and comprises a platform 1, a large disc 2, a small cylinder 3 and a base 4; wherein, the bottom of platform 1 is circular, and the center is equipped with cylindrical boss 101, and boss 101 is other to be equipped with a round aperture 102, is equipped with the external screw thread on the boss 101. The diameter of 2 big discs is the same with 1 bottom of platform, and central authorities are equipped with the circular port, and the circular port diameter is the same with cylindrical boss 101 shape, are equipped with the internal thread in the circular port, and big discs 2 can overlap on boss 101 through screw-thread fit, and 2 sides of big discs have a pointer 201, the angle scale of the directional platform 1 bottom side of pointer 201. The large disc 2 is used like a baffle to block the small cylinder 3. The base 4 is a disc provided with a groove, and sand paper is placed in the groove. The sample 5 is placed at the bottom of the small cylinder 3, the small cylinder 3 is embedded into the small hole 102, the large disc 2 is sleeved on the boss 101, the pointer 201 is rotated to the required scale, and the sample 5 is polished.

Bottom thickness is 10mm, and the diameter is 50mm, and boss 101 diameter is 25mm, and highly is 40mm, has the external screw thread that the pitch is 3mm on the boss 101. The number of the small holes 102 is 12, the diameter is 10mm, and the side surface of the bottom of the platform 1 is carved with an angle, and the total is 360 degrees.

The thickness of the large disc 2 is 10mm, the diameter is 50mm, the pointer 201 is a cuboid, the length is 20mm, the width is 4mm, and the height is 2 mm.

The number of the small cylinders 3 is the same as that of the small holes 102, and the shape of the small cylinders 3 can be matched with the small holes 102.

The radius of the base 4 is 100mm, the height is 10mm, the radius of the groove is 90mm, and the depth is 5 mm.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a little jumper bar sample preparation instrument of compact which characterized in that: comprises a platform, a large disc, a small cylinder and a base; the test platform comprises a platform, a base, a circular hole, an internal thread, a pointer, a small cylinder, a boss, a circle of small holes, a circle of external threads, a circle of large disc, a circle of circular hole, a circle of internal thread, a circle of external threads, a circle of large disc, a circle of circular hole, a circle of internal thread, a circle of large disc, a circle of circular hole, a circle of internal thread, a circle of circular hole, a circle of circular hole, a circle of circular hole, a circle of circular hole, a circle;

the thickness of the bottom of the platform is 10mm, the diameter of the bottom of the platform is 50mm, the diameter of the boss is 25mm, the height of the boss is 40mm, and an external thread with the thread pitch of 3mm is arranged on the boss;

the number of the small holes is 12, the diameter of the small holes is 10mm, and an angle is engraved on the side face of the bottom of the platform, so that the total angle is 360 degrees;

the thickness of the large disc is 10mm, the diameter of the large disc is 50mm, the pointer is a cuboid, the length of the pointer is 20mm, the width of the pointer is 4mm, and the height of the pointer is 2 mm;

the number of the small cylinders is the same as that of the small holes, and the small cylinders can be matched with the small holes;

the base radius is 100mm, and highly is 10mm, and the recess radius is 90mm, and the degree of depth is 5 mm.