Grinding device for special material test sample block
By designing a grinding device for special test samples, using the combination of the sample block side grinding clamp and the sample block end grinding fixture, the problems of low grinding efficiency and difficulty in fixing the test samples in the prior art are solved, and high-precision and high-efficiency test sample processing are achieved.
Patent Information
- Application Number
- CN202421343962.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
When processing special material test samples, the grinding efficiency is low and the test samples are difficult to fix, resulting in poor processing accuracy and consistency, which affects the accuracy of experimental detection data.
A special-material test sample grinding device is designed, using the side grinding clamp on the sample block and the end grinding clamp on the fixture body. By combining the sample block clamp groove and the pressing plate on the fixture body, multiple test sample blocks can be grinded simultaneously.
The processing accuracy and efficiency of the test sample block are improved, the consistency of the test sample block size is ensured, and the test sample block is prevented from being pushed off during the grinding process, which significantly improves the grinding efficiency.
Smart Images
Figure CN222661127U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for grinding special material test blocks, which can grind a plurality of test blocks at the same time and belongs to the technical field of mechanical processing. Background Art
[0002] In the special material finishing project, one of the tasks that requires high processing accuracy is to process the test specimens required for various experiments. Each specification of each set of test specimens is small in size, difficult to fix, and has low processing accuracy and efficiency. For example, the two test specimens for impact experiments are difficult to process. The specifications of the two test specimens are relatively small, 55×10×10mm and 55×10×7mm respectively, and a large number of such test specimens are required. Each time, test area specimens from five different positions of the same raw material are taken as a group for experimental testing. The dimensional accuracy of various test specimens directly affects the accuracy of the subsequent experimental test data and whether the various performance indicators of each special material blank can meet the standards. At present, the grinding method of test specimens has the following disadvantages:
[0003] 1. Each grinding operation can only produce one test sample, and the grinding efficiency is low;
[0004] 2. Since the test sample is light in weight and has a small contact area with the working table of the electromagnetic chuck of the grinder, the adsorption force of the electromagnetic chuck cannot reach the positioning strength of the fastened test sample when the test sample is fixed and adsorbed. It is easy to push the test sample off during grinding, and the test sample needs to be repeatedly re-adsorbed and then ground. This is not only time-consuming and laborious, but also the processed test samples have poor consistency and low dimensional accuracy.
[0005] In order to improve the machining accuracy and efficiency of test specimens, ensure the consistency of the size of each test specimen, and ensure the accuracy of the experimental results, it is very necessary to develop a special grinding device for special material test specimens. Utility Model Content
[0006] The utility model aims to provide a grinding device for a special material test block in view of the drawbacks of the prior art, so as to improve the processing accuracy and processing efficiency of the test block.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A grinding device for a special material test sample block includes a sample block side grinding fixture and a sample block end face grinding fixture, the sample block end face grinding fixture includes a fixture body, a side pressure plate and a front pressure plate, the fixture body is in the shape of a rectangular parallelepiped, and the side portion of the front end of the fixture body is provided with a sample block clamping groove that passes through from top to bottom, and a plurality of vertically placed test sample block blanks are arranged inside the sample block clamping groove along the length direction of the fixture body, the side pressure plate is abutted against the side wall of the fixture body and presses a plurality of test sample block blanks, the front pressure plate is located at the front end of the fixture body and presses the test sample block blank, and the front pressure plate and the side pressure plate are connected to the fixture body by bolts.
[0009] The grinding device for the special material test specimen is provided with two specimen clamping grooves on the fixture body, which are respectively located on the left and right sides of the front end of the fixture body, and two side pressure plates are provided, namely the right pressure plate and the left pressure plate, which are respectively connected to the left and right side walls of the fixture body.
[0010] In the above-mentioned grinding device for special material test sample blocks, the two sample block clamping grooves on the fixture body have different sizes and are matched with two types of test sample blocks respectively.
[0011] In the grinding device for the special material test sample block, the left and right sides of the clamp body are both provided with shallow grooves that pass through from top to bottom, the shallow grooves are connected to the sample block clamping grooves, and bolt holes that match the bolts are provided in the shallow grooves.
[0012] The grinding device for the special material test sample block mentioned above, the sample block side grinding fixture is a rectangular plate, one end of the sample block side grinding fixture is provided with a plurality of sample block slots which are parallel to each other and arranged at equal intervals, and a test sample block blank is inserted into each sample block slot.
[0013] In the grinding device for the above-mentioned special material test block, the gap between the test block blank and the side wall of the block slot is no more than 0.2 mm, and the distance between adjacent block slots is 10 mm.
[0014] In the grinding device for the special material test sample block, two sample block side grinding fixtures are provided, and the sample block slots of the two sample block side grinding fixtures are matched with the two test sample blocks respectively.
[0015] The utility model combines a plurality of test sample block blanks together for grinding, which can increase the adsorption force of the electromagnetic chuck on the test sample block and avoid the test sample block being pushed off during the grinding process. The device can be used to process a plurality of test sample blocks at the same time to ensure the consistency of the size of the test sample blocks, thereby greatly improving the grinding efficiency and processing accuracy of the test sample blocks. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0017] Figure 1 This is a schematic diagram of the use of the sample block side grinding fixture;
[0018] Figure 2 This is a schematic diagram of the use of the sample end face grinding fixture;
[0019] Figure 3 It is a schematic diagram of the structure of the sample block side grinding fixture;
[0020] Figure 4 It is a structural schematic diagram of the fixture body.
[0021] The numbers in the figure are as follows: 1. sample block side grinding fixture, 1-1. sample block slot, 2. first type of test sample, 3. second type of test sample, 4. fixture body, 4-1. sample block slot, 4-2. shallow groove, 5. right pressure plate, 6. left pressure plate, 7. front pressure plate, 8. bolt. DETAILED DESCRIPTION
[0022] The utility model provides a grinding device for special material test blocks, which can grind multiple test blocks at the same time and ensure the consistency of the test blocks, avoiding repeated adsorption of the blocks, so that high-precision test blocks can be processed efficiently and quickly, solving the problems existing in the background technology.
[0023] See also Figure 1-Figure 4 The utility model comprises a sample block side grinding fixture 1 and a sample block end surface grinding fixture, wherein the sample block end surface grinding fixture comprises a fixture body 4, a right pressure plate 5, a left pressure plate 6, a front pressure plate 7 and a bolt 8.
[0024] The making and using method of the utility model:
[0025] Step 1: Make the sample side grinding fixture 1: See Figure 3 , make a rectangular steel plate with a ground bottom surface, cut a plurality of (five in the figure) parallel and equally spaced sample slots 1-1 at one end thereof, insert a test sample blank into each sample slot 1-1, the gap between the test sample blank and the side wall of the sample slot 1-1 is not greater than 0.2mm, and the distance between adjacent sample slots 1-1 is 10mm, so as to improve the rigidity of the overall fixture.
[0026] In order to grind two different test sample blanks at the same time, two sample side grinding fixtures 1 need to be made. The specific production process is as follows:
[0027] Two rectangular steel plates with bottom surfaces ground by a grinder were prepared. The size of the first rectangular steel plate was 120×120×9 mm, and the size of the second rectangular steel plate was 100×100×6 mm. Five sample slots 1-1 with a size of 50×10.2 mm and arranged in parallel and at equal intervals were cut out at one end of the first rectangular steel plate by a wire cutting machine, into which the first test sample 2 could be inserted. Five sample slots 1-1 with a size of 50×7.2 mm and arranged in parallel and at equal intervals were cut out at one end of the second rectangular steel plate, into which the second test sample 3 could be inserted. The spacing between the sample slots 1-1 was 10 mm, as shown in the attached figure. Figure 3 shown.
[0028] Step 2: See Figure 1 When grinding the side of the test sample blank, place the sample side grinding fixture 1 horizontally on the working platform surface of the grinder.
[0029] Step 3: Place five test sample blanks (five first-type test sample blocks 2 or five second-type test sample blocks 3) in the five sample slots 1-1 respectively, with one end of the test sample blank against the end face of the sample slot 1-1, and one side face of the test sample blank flush with the bottom face of the sample side grinding fixture 1 (the end face of the sample slot 1-1 and the bottom face of the sample side grinding fixture 1 are used as positioning references).
[0030] Step 4: Turn on the automatic adsorption function of the grinder. You can grind the same side of the five test sample blanks at the same time. After grinding one side, grind the remaining three sides in sequence.
[0031] Step 5: See Figure 4 , a cuboid fixture body 4 with a ground bottom surface is made, with a size of 160×50×50mm. On the right side of the front end of the fixture body 4, a sample clamping groove 4-1 with a size of 49×10×50mm is cut out by a wire cutting machine tool, which is used to clamp five first-type test samples 2, and a shallow groove 4-2 with a size of 20×0.5×50mm connected to the sample clamping groove 4-1 is cut on the right side of the fixture body 4; on the left side of the front end of the fixture body 4, a sample clamping groove 4-1 with a size of 34×10×50mm is cut out by a wire cutting machine tool, which is used to clamp five second-type test samples 3, and a shallow groove 4-2 with a size of 20×0.5×50mm connected to the sample clamping groove 4-1 is cut on the left side of the fixture body 4.
[0032] Step 6: See Figure 4 Two M6 bolt holes are processed on the end face of the front end of the clamp body 4 for connecting the front pressure plate 7.
[0033] Step 7: See Figure 4Two M6 bolt holes are respectively processed on the two sides of the clamp body 4 for connecting the right pressure plate 5 and the left pressure plate 6, and the bolt holes are located in the shallow groove 4-2.
[0034] Step 8: See Figure 2 A 5mm thick steel plate is used as the front pressure plate 7, which is connected to the front end of the fixture body 4 by two bolts 8 to achieve the longitudinal positioning of the test sample blank. The front pressure plate 7 simultaneously presses the first test sample 2 and the second test sample 3, so that each bolt 8 is fine-tuned and tightened to ensure uniform force at all locations until they are tightened.
[0035] Step 9: See Figure 2 The right side of the fixture body 4 is connected to the right pressure plate 5 through two bolts 8, and the left side of the fixture body 4 is connected to the left pressure plate 6 through two bolts 8. The right pressure plate 5 and the left pressure plate 6 are both 5mm thick steel plates, which are used to horizontally position the test sample blank.
[0036] Step 10: When grinding the end face of the test sample blank, place the fixture body 4 on the working platform of the grinder and turn on the automatic adsorption function of the grinder.
[0037] Step 11: See Figure 2 , five first test blocks 2 are vertically placed in the block clamping groove 4-1 on the right side of the fixture body 4, and five second test blocks 3 are vertically placed in the block clamping groove 4-1 on the left side of the fixture body 4. Taking the working table of the grinder as a reference, six bolts 8 are tightened to make the front pressure plate 7, the right pressure plate 5, and the left pressure plate 6 simultaneously press the first test blocks 2 and the second test blocks 3, and grind one end face of the two groups of test block blanks at the same time. After grinding one end face, grind the other end face.
[0038] The utility model combines a plurality of test sample block blanks together for grinding, and can process a plurality of test sample blocks at the same time. As the contact area of the adsorbed test sample blocks increases, the adsorption force also increases accordingly, which can effectively prevent the sample blocks from being pushed off by the grinding wheel during the grinding process. A plurality of test sample blocks can be processed at one time, thereby improving the grinding accuracy and dimensional consistency of each plane of the same group of test sample blocks, and greatly improving the grinding efficiency and processing accuracy.
Claims
1. A grinding device for a special material test block, characterized in that: The invention comprises a sample block side grinding fixture (1) and a sample block end face grinding fixture, wherein the sample block end face grinding fixture comprises a fixture body (4), a side pressure plate and a front pressure plate (7), wherein the fixture body (4) is in the shape of a rectangular parallelepiped, and a sample block clamping groove (4-1) which passes through the fixture body (4) from top to bottom is provided on the side portion of the front end of the fixture body (4), and a plurality of vertically placed test sample block blanks are arranged inside the sample block clamping groove (4-1) along the length direction of the fixture body (4), the side pressure plate is abutted against the side wall of the fixture body (4) and presses the plurality of test sample block blanks, and the front pressure plate (7) is located at the front end of the fixture body (4) and presses the test sample block blanks, and the front pressure plate (7) and the side pressure plate are connected to the fixture body (4) by bolts (8).
2. A grinding device for a special material test block according to claim 1, characterized in that: The clamp body (4) is provided with two sample block clamping grooves (4-1), which are respectively located on the left and right sides of the front end of the clamp body (4); the side pressure plates are provided with two, namely a right pressure plate (5) and a left pressure plate (6); the right pressure plate (5) and the left pressure plate (6) are respectively connected to the side walls on the left and right sides of the clamp body (4).
3. A grinding device for a special material test block according to claim 2, characterized in that: The two sample block clamping grooves (4-1) on the clamp body (4) have different sizes and are respectively matched with two test sample blocks.
4. A grinding device for a special material test block according to claim 3, characterized in that: The left and right sides of the clamp body (4) are both provided with shallow grooves (4-2) that penetrate vertically, the shallow grooves (4-2) being connected to the sample block clamp groove (4-1), and bolt holes matching the bolts (8) are provided in the shallow grooves (4-2).
5. A grinding device for a special material test block according to any one of claims 1 to 4, characterized in that: The sample block side grinding fixture (1) is a rectangular plate, and one end of the sample block side grinding fixture (1) is provided with a plurality of sample block slots (1-1) which are parallel to each other and arranged at equal intervals, and a test sample block blank is inserted into each sample block slot (1-1).
6. A grinding device for special material test specimens according to claim 5, characterized in that: The gap between the test sample blank and the side wall of the sample slot (1-1) is no more than 0.2 mm, and the distance between adjacent sample slots (1-1) is 10 mm.
7. A grinding device for special material test blocks according to claim 6, characterized in that: Two sample block side grinding fixtures (1) are provided, and the sample block slots (1-1) of the two sample block side grinding fixtures (1) are matched with two test sample blocks respectively.