CN220959879U - Special tool for checking and accepting appearance and surface quality of mechanical impact product - Google Patents
Special tool for checking and accepting appearance and surface quality of mechanical impact product Download PDFInfo
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- CN220959879U CN220959879U CN202322354881.4U CN202322354881U CN220959879U CN 220959879 U CN220959879 U CN 220959879U CN 202322354881 U CN202322354881 U CN 202322354881U CN 220959879 U CN220959879 U CN 220959879U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000004904 shortening Methods 0.000 abstract 1
- 238000009863 impact test Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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Abstract
A special fixture for checking and accepting the appearance and surface quality of an impact product with mechanical properties is characterized in that square or rectangular through holes with different specifications are machined in a rectangular steel block with the length corresponding to that of an impact sample along the axial direction, the square through holes are consistent with the appearance of the impact sample, and the rectangular through holes are consistent with the appearance of the impact sample. The invention is used for testing the shape and the surface quality of the sample, realizing the rapid acceptance of the processing quality of the impact sample before detection, further ensuring the processing quality of the sample, shortening the detection preparation time, and having the characteristics of safety, reliability and convenient use.
Description
Technical Field
The utility model relates to a mechanical property impact product, in particular to a special tool for checking and accepting the appearance and the surface quality of the mechanical property impact product.
Background
In order to meet the control of the appearance processing quality of the mechanical impact sample, according to the requirements of the appearance dimensions of the conventional standard impact sample and the nonstandard impact sample, the risk of visually judging the appearance processing quality is avoided, and the defect that a projector is not easy to judge the appearance quality of the sample is overcome. Therefore, before impact detection, in order to improve the acceptance efficiency of the surface processing quality of the sample and prevent unqualified samples from flowing into the detection process to influence the accuracy of the detection result, an auxiliary special tool for the surface quality acceptance of the impact sample is self-made according to the national standard.
According to G B/T229 standard requirements, the dimensional deviation of the impact sample must meet national standard requirements, and in general, a projector is used to measure the notch depth and the notch included angle of the impact sample, while the external dimension of the sample is measured by using the projector, so that problems such as inaccurate measurement, long time, low efficiency and the like exist. At present, the impact samples of various materials are intensively sent and inspected, the batch is large, the surface processing quality inspection and acceptance efficiency of the samples is improved, unqualified impact samples are prevented from entering the detection link, the accuracy of impact test data is affected, the inspection and acceptance cost of the samples is not increased, and the inspection and acceptance period is shortened, so that in order to improve the processing quality inspection and acceptance efficiency of the impact samples, a practical and special tool with independent intellectual property rights is designed according to the national standard requirements, the quick re-inspection of the surface quality of the impact samples is formed, and the test efficiency is improved.
Disclosure of utility model
The utility model aims to overcome the defect of capability of test sample acceptance equipment or the defect of insufficient capability of test sample acceptance equipment to improve the detection efficiency, and provides a special tool for inspecting the appearance and the surface quality of a mechanical impact product.
The technical scheme of the utility model is as follows:
A special fixture for checking and accepting the appearance and surface quality of an impact product with mechanical properties is characterized in that square or rectangular through holes with different specifications are machined in a rectangular steel block with the length corresponding to that of an impact sample along the axial direction, the square through holes are consistent with the appearance of the impact sample, and the rectangular through holes are consistent with the appearance of the impact sample.
The square through-hole was conformed to the shape of the impact specimen (thickness. Times. Width: 10X 10 mm), and the rectangular through-hole was conformed to the shape of the impact specimen (thickness. Times. Width: 7.5X 10 mm).
Compared with the prior art, the utility model has the following beneficial effects:
1. The tool for checking and accepting the appearance size of the impact sample is adopted, and the tool for checking and accepting the appearance of the (standard and non-standard) impact sample is additionally arranged, so that the surface shape compliance checking and accepting requirement of the sample before impact detection is met.
2. By adopting the tool provided by the utility model, the phenomenon that the test result accuracy is influenced by the fact that the irregular section sample with the diamond section size or difficult to find visually enters the test detection flow is effectively avoided.
3. By adopting the tool disclosed by the utility model, the complexity of acceptance of the surface shape of the impact sample and other instruments and equipment before testing can be effectively reduced, the tool is used as a professional tool for acceptance of the surface shape of the impact sample, and the acceptance efficiency of the surface shape of the impact sample is effectively improved.
4. The tool has the characteristics of quick use, safe and stable operation, suitability for single operation and the like, is environment-friendly, and can effectively prevent impact samples with unqualified surface shapes from entering a detection flow and influencing the accuracy of the detection result of the impact test.
In a word, the tool realizes the rapid acceptance of the surface shape and the size of the standard and non-standard impact samples by the acceptance of the surface shape of the impact samples before the test, and has the advantages of strong pertinence, convenience, high efficiency and convenient operation.
Drawings
FIG. 1 is a schematic view of the section of an A-shaped hole of the novel tool.
FIG. 1-1 is a schematic cross-sectional view of the dimensional tolerance of the A-shaped hole of the novel tool.
FIG. 2 is a schematic diagram of the cross section of the A-shaped hole and the B-shaped hole of the novel tool.
FIG. 2-1 is a schematic diagram of a dimensional tolerance cross section of a type A hole and a type B hole of the novel tool.
Fig. 3 is a top view of the novel tooling.
Fig. 3-1 is a top view of the hole mark of the novel tooling (A, B).
Detailed Description
The present invention will be described in further detail with reference to the drawings and the specific embodiments, but the scope of protection of the present invention should not be limited thereby.
The special square and rectangular through holes with different specifications are subjected to quenching and tempering and finish machining, and appearance quality of the impact sample is checked and accepted according to the type of the impact sample before test operation, so that fluctuation of impact test results and influence on accuracy of the results due to fact that the appearance size of the impact sample exceeds the tolerance requirement are avoided.
The special tool is provided with square or rectangular through holes with different specifications, corresponding apertures on the device are selected when finished impact samples with different specifications are accepted, the corresponding apertures are inserted from one end of the surface of the tool, the corresponding apertures are taken out from the other end of the surface of the tool, and if the appearance size of the impact sample exceeds the upper limit of standard tolerance or the section of the sample is not square, the impact sample cannot pass through the acceptance device smoothly, so that the acceptance function of the appearance processing quality of the impact sample is achieved.
The round steel (diameter: phi 65 mm; phi 85 mm) is quenched and tempered, and the surface hardness HBW (5/750) is more than 320.
Finishing the round steel to a length of 55+0.5+0.1; square steel with a cross-sectional dimension of 40 cm 47.5+0.5+0.1 mm.
The square steel is provided with through holes (with the width of 10mm and the thickness of 7.5) mm axially at the end face (40 mm and 47.5), and the dimensional tolerance is respectively wideThickness/>See fig. 1, fig. 1-1.
The square steel is provided with a through hole (10 mm wide and 10mm thick) along the parallel axis direction at the position near the center of the end face, and the dimensional tolerance is respectively wideThickness/>See fig. 2, fig. 2-1.
The tool is used for respectively finishing through holes with different sizes in parallel axial directions, and the through holes are shown in fig. 3-1 and 3-2.
The corresponding "A" or "B" type holes are selected according to the different dimensional characteristics of the impact sample (standard impact sample or non-standard impact sample).
A hand-held impact specimen to be tested is inserted from one end of the port. If the external dimension of the impact sample meets the standard requirement, the surface quality sample of the impact sample can smoothly pass through the A or B type holes. Otherwise, the test sample cannot pass through the corresponding hole pattern due to the out-of-tolerance or non-square shape, so that the purpose of rapid acceptance of the test sample is achieved.
Examples
Referring to fig. 3-2, the novel tool has a type a hole and a type B hole with different specifications, is suitable for checking and accepting machining quality of the outer surface shape of the impact test sample with different specifications, and achieves the purpose of controlling and checking and accepting the machining quality of the surface shape of the impact test sample.
1) The standard impact sample is longitudinally penetrated from one end of the B-shaped hole and taken out through the other end, external force is not required to be applied during taking out (a tool is strictly forbidden to strike one end of the impact sample, damage to the tool is avoided), obvious blocking is avoided, meanwhile, the sample does not swing obviously when freely passing through the square hole channel, and the shape and the size of the surface of the sample are proved to meet the standard requirements.
2) If the standard impact sample cannot be successfully inserted into one end of the B-shaped hole along the longitudinal direction, the shape and the size of the surface of the sample are out of tolerance, the impact sample does not meet the standard tolerance requirement of GB/T229, and the impact sample is an unqualified impact sample.
3) The non-standard impact sample is longitudinally penetrated from one end of the A-shaped hole and taken out through the other end, no external force is required to be applied during the taking out, no obvious blockage is caused, and meanwhile, the sample does not swing obviously left and right when freely passing through the A-shaped hole channel, so that the shape and the size of the surface of the sample are proved to meet the standard requirements.
4) When the impact samples with different specifications pass through the A-type or B-type port, if one end of the sample cannot be smoothly inserted into the port, the condition that the surface size of the sample is out of tolerance is indicated, and the aim of acceptance is achieved. And (3) strictly preventing additional load from being applied or using a tool to strike the other end of the impact sample, forcing one end of the sample into the port, and causing permanent damage or even scrapping of the tool.
5) After the utility model is used, the utility model is well cleaned and rust-proof treated and is put into a constant temperature environment for standby.
Claims (2)
1. A special fixture for checking and accepting the appearance and surface quality of an impact product with mechanical properties is characterized in that square or rectangular through holes with different specifications are machined in a rectangular steel block with the length corresponding to that of an impact sample along the axial direction, the square through holes are consistent with the appearance of the impact sample, and the rectangular through holes are consistent with the appearance of the impact sample.
2. The special fixture for checking and accepting the appearance and the surface quality of the impact product with mechanical properties according to claim 1, wherein the square through hole is in accordance with the appearance of the impact sample, the thickness x width is 10 x 10mm, the rectangular through hole is in accordance with the appearance of the impact sample, and the thickness x width is 7.5 x 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354881.4U CN220959879U (en) | 2023-08-31 | 2023-08-31 | Special tool for checking and accepting appearance and surface quality of mechanical impact product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354881.4U CN220959879U (en) | 2023-08-31 | 2023-08-31 | Special tool for checking and accepting appearance and surface quality of mechanical impact product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220959879U true CN220959879U (en) | 2024-05-14 |
Family
ID=91017689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322354881.4U Active CN220959879U (en) | 2023-08-31 | 2023-08-31 | Special tool for checking and accepting appearance and surface quality of mechanical impact product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220959879U (en) |
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2023
- 2023-08-31 CN CN202322354881.4U patent/CN220959879U/en active Active
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