CN212621867U

CN212621867U - Multifunctional low-temperature impact test rapid centering clamp

Info

Publication number: CN212621867U
Application number: CN202021315358.0U
Authority: CN
Inventors: 宋秀文; 李小青; 薛明
Original assignee: Dalian Heavy Inspection Technology Service Co ltd; Dalian Huarui Heavy Industry Group Co Ltd
Current assignee: Dalian Heavy Inspection Technology Service Co ltd; Dalian Huarui Heavy Industry Group Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-02-26
Anticipated expiration: 2030-07-07

Abstract

The utility model provides a multifunctional low-temperature impact test rapid centering clamp, which comprises a clamp body and a positioning block, wherein the clamp body consists of a first clamp rod and a second clamp rod, one end of the first clamp rod is fixedly connected with one end of the second clamp rod, the other end of the first clamp rod is provided with a clamp tooth mouth, the other end of the second clamp rod is connected with the positioning block, and the first clamp rod and the second clamp rod are opened in a Y shape from the fixed connecting end to the other end; the second clamp rod and the positioning block are arranged in a vertical angle; a V-shaped boss or an arc-shaped boss is arranged at the center of the inner side of the positioning block; threaded holes are formed in the positioning blocks, the threaded holes are connected with a straight positioning screw in a matched mode, the positioning blocks and the second clamp rod are fixedly connected through the straight positioning screw, and the straight positioning screw is used for replacing positioning blocks in different shapes aiming at different impact samples. The utility model discloses simple structure, light and handy, the preparation is easy, and is easy and simple to handle, has improved the test efficiency that low temperature strikeed and arc strikes standard sample.

Description

Multifunctional low-temperature impact test rapid centering clamp

Technical Field

The utility model relates to a metal material summer impact test auxiliary device field especially relates to a multi-functional low temperature impact test quick centering clamp.

Background

The Charpy impact test is a traditional mechanical property test method which is most widely applied to evaluating the impact toughness of metal materials. An important link in the test process is that the impact sample is moved from the temperature control medium to be placed close to the anvil block of the testing machine, the hammer blade is made to strike the back of the notch of the sample along the symmetrical surface of the notch of the sample, the deviation of the symmetrical surface of the notch of the sample from the midpoint between the two anvil blocks is not more than 0.5mm, otherwise, the test data can cause great errors. And moving the device from the temperature control medium to a device placed close to an anvil block of the testing machine, and adopting the impact sample centering clamp recommended in the standards of the Charpy impact test method of metal materials at home and abroad. The cryogenic tank is adopted for cooling the impact sample in the cryogenic impact test, and because the opening of the cryogenic tank is smaller and deeper, most of the cryogenic tank is cooled by alcohol, the lower the temperature is, the more turbid the cryogenic tank is, and a certain bending angle exists between the clamp rod and the clamp head of the recommended centering clamp, so that the notch of the sample is not convenient to be quickly matched with the V-shaped protruding part in the positioning block at the head of the clamp from the cryogenic tank. In addition, the head of the clamp rod of the recommended centering clamp is provided with a positioning block and a clamping plate, and the clamping plate has a certain thickness, so that a clamping space between the clamping plate and the positioning block is required to be reserved when a sample is placed in the cryogenic tank, and the quantity of impact samples placed into the cryogenic tank at one time is reduced.

For an arc standard impact sample, the centering clamp cannot be used, the centering and positioning size can only be set by calculating the sample, the end part of the sample is aligned by using a depth measuring rod of a vernier caliper, the tail part of a caliper body is clamped at the outer edge of an anvil block, the sample is centered and positioned, and the procedure is complicated and locked.

The above-mentioned problems result in a reduction in test efficiency, which is inconvenient for the tester to operate.

SUMMERY OF THE UTILITY MODEL

According to the technical problems provided by the patent, the multifunctional low-temperature impact test quick centering clamp is provided. The utility model discloses set two whole sharp structure that become of clamp pole, no bent part has cancelled the bending angle between clamp pole and the clamp head in the conventional centering clamp promptly to adopt the splint that the pincers tooth mouth replaced certain thickness, make the overall structure that the centering was pressed from both sides more lightly, and design into removable form with the locating piece, make things convenient for operating personnel to press from both sides the low temperature impact test sample or arc impact standard sample fast and get and move to impact testing machine and carry out the location test, thereby improve test efficiency. The utility model discloses a technical means as follows:

a multi-functional cryogenic shock test quick centering clamp includes: the clamp comprises a clamp body and a positioning block, wherein the clamp body consists of a first clamp rod and a second clamp rod, one end of the first clamp rod is fixedly connected with one end of the second clamp rod, the other end of the first clamp rod is provided with a clamp tooth opening, the other end of the second clamp rod is connected with the positioning block, and the first clamp rod and the second clamp rod are opened in a Y shape from a fixed connecting end to the other end;

the second clamp rod and the positioning block are arranged in a vertical angle, so that the centering clamp can clamp a sample from the low-temperature groove conveniently;

a V-shaped boss or an arc-shaped boss matched with the notch of the impact sample is arranged at the center of the inner side of the positioning block facing the jaw;

the positioning block is provided with a threaded hole, the threaded hole is connected with a straight positioning screw in a matching mode, the front face of the positioning block is provided with a mounting hole, the axis of the mounting hole is perpendicular to the threaded hole, the end part of the other end of the second clamping rod is inserted into the mounting hole, a through hole is formed in the end part of the other end of the second clamping rod and communicated with the threaded hole, the straight positioning screw is screwed into the threaded hole and the through hole, the positioning block is fixedly connected with the second clamping rod through the straight positioning screw, and meanwhile, the straight positioning screw is detached to replace the positioning blocks in different shapes aiming at different impact samples.

Furthermore, the outer sides of the first clamping rod and the second clamping rod are provided with anti-skid grains, so that an operator can clamp a sample more accurately and smoothly.

Furthermore, the whole first clamp rod is of a linear structure and has no bent structure; the second clamp rod is integrally of a linear structure and has no bending structure.

Furthermore, the positioning block is a cuboid with two same side angles symmetrically cut off, the length of the cuboid is equal to the span of an anvil block of the impact testing machine and is 40mm, the whole weight of the sample quick centering clamp is reduced, and the operation is convenient. The symmetrically cutting off the two same side angles refers to symmetrically cutting off the outer side surface of the cuboid and the vertical angle edge between the adjacent two side surfaces of the cuboid, wherein the two side surfaces are vertical to the front surface of the positioning block.

Furthermore, the inner side of the jaw is provided with anti-skid insections so as to increase the stability of sample clamping.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides a multi-functional low temperature impact test quick centering clamp has simple structure, light and handy, and the preparation is easy, characteristics such as easy and simple to handle have improved the test efficiency that low temperature strikeed and arc impacted standard sample.

2. The utility model provides a quick centering clamp of multi-functional low temperature impact test has cancelled the bending angle between the tong pole and the clamp head in the conventional centering clamp to adopt the splint that the pincers tooth mouth replaced certain thickness, make the overall structure of centering clamp lighter, and design into removable form with the locating piece, make things convenient for operating personnel to strike quick clamp of standard sample with low temperature impact test sample or arc and get and move to impact testing machine and carry out the location test, improve test efficiency.

Based on the above reason the utility model discloses can extensively promote in fields such as metal material Charpy impact test auxiliary device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a schematic structural diagram of a positioning block with an arc-shaped boss.

Fig. 4 is a schematic structural diagram of a positioning block with a V-shaped boss according to the present invention.

Fig. 5 is a schematic structural view of a straight-line positioning screw according to the present invention.

In the figure: 1. a first clamping bar; 2. a second clamping bar; 3. positioning blocks; 4. a jaw opening is clamped; 5. anti-skid lines; 6. a straight positioning screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-5, the utility model provides a multi-functional low temperature impact test quick centering clamp, include: the clamp comprises a clamp body and a positioning block 3, wherein the clamp body is composed of a first clamp rod 1 and a second clamp rod 2, the right end of the first clamp rod 1 is fixedly connected with the right end of the second clamp rod 2, a jaw 4 is arranged at the left end of the first clamp rod 1, the other left end of the second clamp rod 2 is connected with the positioning block 3, and the first clamp rod 1 and the second clamp rod 2 are opened in a Y shape from the right fixed connecting end to the left side. Wherein, the inside of pincers tooth mouth 4 is equipped with anti-skidding insection to increase the stability of sample centre gripping.

The second clamp rod 2 and the positioning block 3 are arranged in a vertical angle mode, so that the centering clamp can clamp a sample from the low-temperature groove conveniently. The outer sides of the first clamping rod 1 and the second clamping rod 2 are provided with anti-skid lines 5, so that an operator can clamp a sample more accurately and smoothly. The first clamp rod 1 is of a linear structure and has no bent structure; the second clamp rod 2 is integrally of a linear structure and has no bending structure.

And a V-shaped boss or an arc-shaped boss matched with the notch of the impact sample is arranged at the central position of the inner side of the positioning block 3 facing the jaw 4. The positioning block 3 is a cuboid with two same side angles symmetrically cut off, the length of the cuboid is equal to the span of an anvil block of the impact testing machine and is 40mm, the whole weight of the sample quick centering clamp is reduced, and the operation is convenient. The cuboid is provided with an inner side face, an outer side face, a front face, a back face, a left side face and a right side face. The symmetrically cutting off the two same side angles refers to symmetrically cutting off the vertical angle edge between the outer side surface of the cuboid and the left side surface and the right side surface, wherein the left side surface and the right side surface are both vertical to the front surface.

The outer side surface of the positioning block 3 is provided with a threaded hole, the threaded hole is connected with a linear positioning screw 6 in a matching mode, the front surface of the positioning block 3 is provided with a mounting hole, the axis of the mounting hole is perpendicular to the threaded hole, the left end of the second clamping rod 2 is inserted into the mounting hole, the left end of the second clamping rod 2 is provided with a through hole, the through hole is communicated with the threaded hole, the linear positioning screw 6 is screwed into the threaded hole and the through hole, the positioning block 3 is fixedly connected with the second clamping rod 2 through the linear positioning screw 6, and meanwhile, the linear positioning screw 6 is detached to replace the positioning blocks 3 in different shapes aiming at different impact samples.

The utility model discloses an use in metal material low temperature summer is than impact test in-process, impact specimen need shift out to the impact tester anvil block from the low temperature device to a centering clamp that breaks the sample in quick to.

The structure of the conventional centering clamp in the standard method for the Charpy impact test of the metal materials at home and abroad is optimally designed, so that the problems that a test sample cannot be clamped from a low-temperature tank quickly and the number of the impact test samples placed in the low-temperature tank is small are solved. The bending angle between the clamp rod and the clamp head is eliminated, the clamp tooth mouth 4 is adopted to replace a clamping plate with a certain thickness, the overall structure of the centering clamp is lighter, the positioning block 3 is designed into a replaceable form, the rapid centering problem of the arc standard impact sample is solved, the operation of a tester is facilitated, and the test efficiency is improved.

In 450J and 150J impact testing machine low temperature test, daily average low temperature impact sample is about 100, and (6 ~ 8) h are spent to the conventionality, only need (2 ~ 3) h to accomplish after the centering clamp of the utility model is implemented, create the output value about 100 x 40 x 22 ═ 8.8 ten thousand/month.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a multi-functional low temperature impact test quick centering clamp which characterized in that includes: the clamp comprises a clamp body and a positioning block (3), wherein the clamp body consists of a first clamp rod (1) and a second clamp rod (2), one end of the first clamp rod (1) is fixedly connected with one end of the second clamp rod (2), the other end of the first clamp rod (1) is provided with a clamp tooth opening (4), the other end of the second clamp rod (2) is connected with the positioning block (3), and the first clamp rod (1) and the second clamp rod (2) are opened in a Y shape from the fixed connecting end to the other end;

the second clamp rod (2) and the positioning block (3) are arranged in a vertical angle mode, so that the centering clamp can clamp a sample from the low-temperature groove conveniently;

a V-shaped boss or an arc-shaped boss matched with the notch of the impact sample is arranged on the positioning block (3) towards the center of the inner side of the jaw (4);

the positioning block (3) is provided with a threaded hole, the threaded hole is connected with a straight-line-shaped positioning screw (6) in a matching mode, the front face of the positioning block (3) is provided with a mounting hole, the axis of the mounting hole is perpendicular to that of the threaded hole, the other end of the second clamping rod (2) is inserted into the mounting hole, a through hole is formed in the other end of the second clamping rod (2), the through hole is communicated with the threaded hole, the straight-line-shaped positioning screw (6) is screwed into the threaded hole and the through hole, the positioning block (3) is fixedly connected with the second clamping rod (2) through the straight-line-shaped positioning screw (6), and meanwhile, aiming at different impact samples, the straight-line-shaped positioning screw (6) is detached to replace the positioning blocks (3) in different shapes.

2. The multifunctional low-temperature impact test quick centering clamp of claim 1, wherein the outer sides of the first clamp rod (1) and the second clamp rod (2) are provided with anti-skid lines (5), so that an operator can clamp a test sample more accurately and smoothly.

3. The multifunctional low-temperature impact test quick centering clamp as claimed in claim 1 or 2, wherein the first clamp rod (1) is of a straight line structure as a whole and has no bending structure; the second clamp rod (2) is of a linear structure and has no bending structure.

4. The multifunctional rapid centering clamp for the low-temperature impact test according to claim 1, wherein the positioning block (3) is a cuboid with two symmetrically cut-off same side angles, the length of the cuboid is equal to the span of an anvil block of the impact testing machine and is 40mm, so that the overall weight of the rapid centering clamp for the test sample is reduced, and the operation is convenient.

5. The multifunctional low-temperature impact test quick centering clamp as claimed in claim 1, wherein the inner side of the clamp tooth mouth (4) is provided with anti-skid insections to increase the stability of sample clamping.