Positioning jig for clamping piece

Abstract

The utility model discloses a clamping piece positioning jig which comprises a bottom plate and a clamping piece, a plurality of first positioning blocks are arranged on the bottom plate at equal intervals, the first positioning blocks are placed in the same direction, the top of each first positioning block is in an arc shape, the top of each first positioning block is linearly and obliquely divided into a high side and a bottom side, the slope is k, a second positioning block is arranged on the side portion, close to the bottom plate, of the inclined low edge of the first positioning block, the second positioning block is fixedly connected with the bottom plate, and the second positioning block is connected with the first positioning block through a bolt. According to the fixture disclosed by the utility model, a plurality of clamping pieces can be placed on the positioning fixture at one time, then the positioning fixture is placed into a clamping piece hardness testing machine for hardness testing, and in the process, a worker can continuously place the clamping pieces on a new positioning fixture, so that the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of clamp hardness testing technology, and more specifically, this utility model relates to a positioning fixture for clamps. Background Technology

[0002] The clips used on prestressed materials need to undergo hardness testing. In the existing technology, most of them are manually placed on a hardness testing machine one by one for hardness testing, which is a cumbersome and inefficient process.

[0003] The utility model patent with patent number CN208334061U discloses a Rockwell hardness testing clamp device. In its use, the clamp is first placed on the first support block and the second support block to position the lower end face of the clamp. Then, the two ends of the clamp are clamped and fixed by the first clamping seat and the second clamping seat to perform the test. The height difference between the first support block and the second support block is used to eliminate the height difference of the clamp, thereby meeting the Rockwell hardness testing requirements. When the height difference between the two ends of the clamp changes, the height difference between the first and second support blocks is first adjusted by raising and lowering the second support block to offset the height difference between the two ends of the clamp. The first and second support blocks are connected by pins, thus not only meeting the height difference requirement of the clamp but also the technical requirement that the lower end of the clamp be straight. Furthermore, the upper and lower arc-shaped support plates of this invention have a gap, allowing the clamp ends to be fixed in position through contact at three locations: the base, the upper arc-shaped support plate, and the lower arc-shaped support plate. This ensures the stability of the clamp installation and meets the testing requirements for clamps of different sizes, making this invention highly versatile, improving equipment utilization, and reducing costs.

[0004] It can be seen that the height difference between the first support block and the second support block is used to eliminate the height difference of the clamping piece, thereby meeting the Rockwell hardness test requirements. The height difference between the first support block and the second support block is adjusted by raising and lowering the second support block to offset the height difference between the two ends of the clamping piece, thus meeting the technical requirement that the lower end of the clamping piece is straight.

[0005] However, adjusting the height difference during the experiment is quite troublesome. After the clamp is subjected to force, it will bend and squeeze, requiring adjustment. In addition, each adjustment requires re-determining the position, which can easily lead to operational errors. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a positioning fixture for clamps that is non-manual, easy to inspect, and less prone to errors.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a positioning fixture for a clamping piece, comprising a base plate and a clamping piece, wherein multiple first positioning blocks are equally spaced on the base plate, the multiple first positioning blocks are arranged in the same direction, the top of the first positioning block is arc-shaped and the top of the first positioning block is linearly inclined into a high side and a bottom side with a slope of k, a second positioning block is provided on the side of the base plate near the inclined low side of the first positioning block, the second positioning block is fixedly connected to the base plate, and the second positioning block is connected to the first positioning block by bolts.

[0008] This utility model discloses a positioning fixture for a clamping piece, wherein the top high edge of the first positioning block is chamfered.

[0009] This utility model discloses a positioning fixture for a clamping piece, wherein the slope k ranges from 0 to 0.5.

[0010] This utility model discloses a positioning fixture for a clamping piece, wherein the base plate is also provided with positioning holes.

[0011] This utility model discloses a positioning fixture for a clamping piece, wherein the height of the second positioning block is higher than the bottom edge height of the first positioning block.

[0012] This utility model discloses a positioning fixture for a clamping piece, wherein the clamping piece and a first positioning block are coupled together.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This utility model fixture can place multiple clamping pieces onto the positioning fixture at one time, and then place the positioning fixture into the clamping piece hardness testing machine for hardness testing. During this process, the worker can continue to place the clamping pieces onto new positioning fixtures, which greatly improves work efficiency.

[0015] 2. The fixture of this utility model is simple to operate. It uses the tilting characteristics of the first positioning block to meet the hardness test requirements. At the same time, because the shape of the first positioning block can be coupled with the clamping piece, it is convenient to fix the clamping piece and is not easy to produce errors.

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0018] Figure 1 This is a top view of the present invention;

[0019] Figure 2 This is a sectional view of the present invention along line AA;

[0020] Figure 3This is the left view of the present invention;

[0021] Figure 4 This is a top view of the present invention;

[0022] Figure 5 This is the front view of the present invention;

[0023] Figure 6 This is a schematic diagram of the working process of this utility model;

[0024] The markings in the diagram are: 1. Base plate; 11. Positioning hole; 2. First positioning block; 21. Chamfer; 3. Second positioning block; 4. Clamping piece. Detailed Implementation

[0025] The following description, with reference to the accompanying drawings, further details the specific implementation methods of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the utility model concept and technical solution.

[0026] like Figures 1 to 5 The positioning fixture shown includes a base plate 1 and a clamping piece 4. Multiple first positioning blocks 2 are evenly spaced on the base plate 1, arranged in the same direction. The top of each first positioning block 2 is arc-shaped and linearly inclined, consisting of a high side and a bottom side with a slope of k. A second positioning block 3 is located on the side of the base plate 1 near the lower inclined side of the first positioning block 2. The second positioning block 3 is fixedly connected to the base plate 1 and to the first positioning block 2 via bolts. The high side of the first positioning block 2 has a chamfer 21. The slope k ranges from 0 to 0.5. The base plate 1 also has positioning holes 11. The height of the second positioning block 3 is higher than the bottom edge height of the first positioning block 2. The clamping piece 4 is coupled to the first positioning block 2.

[0027] Working principle and method

[0028] First, place the clips 4 one by one on the first positioning block 2. After placing them, install the base plate 1 on the mounting platform of the hardness testing machine. The hardness testing machine then begins to perform hardness tests on each of the clips 4.

[0029] Above, refer to Figures 1-6 The present invention describes a positioning fixture for clamps and a clamp hardness testing machine according to an embodiment of the present invention. Multiple clamps 4 can be placed on the positioning fixture at one time, and then the positioning fixture is placed on the clamp hardness testing machine for hardness testing. During this process, the worker can continue to place the clamps 4 on new positioning fixtures, which greatly improves work efficiency.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A positioning fixture for a clamping piece, comprising a base plate and a clamping piece, characterized in that, Multiple first positioning blocks are evenly spaced on the base plate. The multiple first positioning blocks are placed in the same direction. The top of the first positioning block is arc-shaped and the top of the first positioning block is linearly inclined, divided into a high side and a bottom side with a slope of k. A second positioning block is provided on the side of the base plate near the low side of the first positioning block. The second positioning block is fixedly connected to the base plate and is connected to the first positioning block by bolts.

2. The positioning fixture for a clamping piece according to claim 1, characterized in that, The top high edge of the first positioning block is chamfered.

3. The positioning fixture for a clamping piece according to claim 1, characterized in that, The slope k ranges from 0 to 0.

5.

4. The positioning fixture for a clamping piece according to claim 1, characterized in that, The base plate is also provided with positioning holes.

5. A positioning fixture for a clamping piece according to claim 1, characterized in that, The height of the second positioning block is higher than the bottom edge height of the first positioning block.

6. A positioning fixture for a clamping piece according to claim 1, characterized in that, The clip and the first positioning block are coupled together.

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