CN219455678U - Charpy impact sample expansion value measuring device - Google Patents
Charpy impact sample expansion value measuring device Download PDFInfo
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- CN219455678U CN219455678U CN202320042062.3U CN202320042062U CN219455678U CN 219455678 U CN219455678 U CN 219455678U CN 202320042062 U CN202320042062 U CN 202320042062U CN 219455678 U CN219455678 U CN 219455678U
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- block
- sliding
- positioning frame
- charpy impact
- expansion value
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a metal material mechanical property measuring device. The device has the characteristics of convenient use and capability of obtaining a measurement result at one time. The technical scheme is a charpy impact specimen expansion value measuring device, its characterized in that: the device also comprises two sliding columns which are vertically arranged and keep a distance, two sliding rods which are positioned on the two sliding columns one by one through a composite block, a positioning frame which can be horizontally and slidably positioned on the two sliding rods, and two contact blocks which are positioned in the positioning frame and touch a sample so as to perform measurement; the left contact block of the two contact blocks is fixed with the inner wall of the positioning frame, and the right contact block is pressed by an external force and has a tendency of moving to the left contact block; the dial indicator is positioned on the positioning frame through a measuring structure.
Description
Technical Field
The utility model relates to a measuring device for mechanical properties of metal materials, in particular to a measuring device for an expansion value of a Charpy impact sample.
Background
The magnitude of the Charpy impact specimen side expansion value is one of the important parameters for the impact toughness characterization of the measured metal materials. The conventional measurement method adopts a dial indicator to measure four expansion amounts of two half broken samples, selects higher expansion amounts of the same side of the two half broken samples, adds the higher expansion amounts of the two sides, and calculates an expansion value. Because the operation process is loaded down with trivial details, the fault rate is big, and CN 112393667 discloses a summer is than impact sample side expansion volume measuring device, including adjustable draw-in groove and measuring part, adjustable draw-in groove is equipped with different draw-in groove positions and places the sample, and measuring part measurable quantity is the sample of different high positions, and measuring part is through centre gripping measurement and return to zero system, can read the side expansion volume on two sides fast. The measuring device has the following defects: the operation process is still complicated (the test of each sample needs to be measured four times, the expansion value of the metal material can be obtained after comparison calculation), and the error rate is not small.
Disclosure of Invention
The utility model aims to overcome the defects of the background technology and provide an improvement of a device for measuring the expansion value of a Charpy impact sample, which has the characteristics of convenient use and capability of obtaining a measurement result at one time.
The technical scheme provided by the utility model is as follows:
the device comprises a sample clamping device and a dial indicator, wherein the sample clamping device is positioned on a base; the method is characterized in that: the device also comprises two sliding columns which are vertically arranged and keep a distance, two sliding rods which are positioned on the two sliding columns one by one through a composite block, a positioning frame which can be horizontally and slidably positioned on the two sliding rods, and two contact blocks which are positioned in the positioning frame and touch a sample so as to perform measurement; the left contact block of the two contact blocks is fixed with the inner wall of the positioning frame, and the right contact block is pressed by an external force and has a tendency of moving to the left contact block; the dial indicator is positioned on the positioning frame through a measuring structure.
The right slide bar of the two slide bars is in sliding fit with the right slide block; the right spring is sleeved on the right slide bar and provides the external force.
The measuring structure comprises a sliding adjusting block vertically arranged on the outer side surface of the positioning frame and a bracket connected with the right sliding block and used for fixing the dial indicator; the measuring end of the dial indicator horizontally extends and abuts against the sliding adjusting block.
The outer side surface of the positioning frame is also fixedly provided with a positioning block, a distance-adjusting screw rod is horizontally positioned on the positioning block through a thread structure, and the top end of the adjusting screw rod is hinged with the sliding adjusting block; the sliding adjusting block is also in sliding fit with the positioning frame through a guide structure.
The guide structure comprises a sliding groove horizontally arranged on the positioning frame and a sliding block which is manufactured on the sliding adjusting block and is in sliding fit with the sliding groove.
The left slide bar is sleeved with a left spring, and two ends of the left spring apply force to the left slide bar and the positioning frame respectively.
The two sliding columns are also respectively sleeved with a reset block in a sliding way and a pressure spring for jacking the reset block upwards; the left slide bar and the right slide bar are respectively fixed with the two reset blocks one by one.
The upper part of the left sideslip column is also provided with threads and corresponding limit nuts so as to adjust the upper and lower positions of the positioning frame.
The clamping device comprises two fixed blocks arranged at intervals and a fixed screw horizontally positioned on one of the fixed blocks for clamping the sample.
The beneficial effects of the utility model are as follows:
1. the device can be directly pressed down by the aid of the contact block structure with the guidance, and the device is convenient to operate, can accurately pick up two ends of a sample and realizes measurement of relative distance.
2. The device can realize accurate reading of the expansion value by associating the dial indicator with the contact block structure, and has good accuracy compared with measurement structures such as calipers.
3. The two contact blocks of the device appear in a relative measurement mode, and can realize one-time measurement of an expansion value by fixing two samples at the same time, so that compared with the traditional mode of measuring, calculating and comparing, the device can effectively save a measurement flow and effectively reduce operation or calculation error rate.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present utility model.
Fig. 2 is a schematic diagram of a front view structure of an embodiment of the present utility model.
Fig. 3 is a schematic top view of an embodiment of the present utility model.
1. A reset block; 2. a left touch block; 3. pressing the hands; 4. a right contact block; 5. a dial gauge; 6. a slide bar; 6.1, thicker sections; 7. a spool; 8. a distance adjusting screw; 9. a positioning block; 10. a sliding adjusting block; 11. a positioning frame; 12. a sample; 13. a sample clamping device; 14, a base; 15 sliding grooves; a right spring 16.
Detailed Description
Further details are described below in connection with the embodiments shown in the drawings.
The device for measuring the expansion value of the Charpy impact sample shown in the drawing comprises a sample clamping device 13 positioned at the bottom and a dial indicator 5; this is similar to existing measuring devices.
The improvement of the utility model is that two slide posts 7 are vertically arranged on a base 14 of the device, and the two slide posts keep a certain distance; a composite block 1 is sleeved on each sliding column in a sliding way, and one end of a sliding rod 6 is horizontally fixed on each composite block; the two slide bars are respectively positioned at the opposite sides of the two composite blocks, and the positioning frame 11 can be horizontally and slidably positioned on the two slide bars (left slide bar and right slide bar) at the same time; the left slide bar is sleeved with a left spring, and the left spring respectively abuts against the left contact block and the left outer wall of the positioning frame, so that the positioning frame has a tendency of moving to the right; the right slide bar is a stepped shaft, wherein a thinner section is in sliding fit with a slide hole of the positioning frame, and the thicker section 6.1 limits the sliding range of the positioning frame because the diameter of the slide hole is larger than that of the slide hole, so that the positioning frame is ensured not to slide from the left slide bar. Two contact blocks are arranged in the positioning frame, and guide inclined planes (corresponding to the guide inclined planes of the two contact blocks) are respectively manufactured at the lower parts of the two contact blocks, so that the contact force generated when the two contact blocks touch a sample can be converted into the thrust force for the contact blocks; the left contact block of the two contact blocks is fixed with the inner wall of the front and rear sides (the upper side and the lower side in fig. 3) of the positioning frame, and the left contact block is kept at a certain distance from the inner wall of the left side of the positioning frame (a space is reserved for horizontal sliding of the positioning frame). The right contact block is sleeved on the right slide bar in a sliding way but cannot slide from the right slide bar (the left end part of the right slide bar is a boss with a larger diameter to prevent the right contact block from sliding left); the two ends of the right spring 16 sleeved on the right slide bar respectively prop against the right contact block and the right inner wall of the positioning frame, so that the right contact block is pressed by an external force and has a tendency of moving towards the left contact block; preferably, the left and right springs perform the same, facilitating balance.
In the measuring structure, a sliding adjusting block is vertically arranged on the outer side surface of a positioning frame, a bracket for fixing the dial indicator is connected with a right sliding block (shown in figure 3, a horizontally arranged long groove is formed on the front side surface of the positioning frame, and the bracket extends into the positioning frame through the long groove to be connected with the right sliding block); the contact pin of the dial indicator horizontally extends leftwards and abuts against the sliding adjusting block.
The left side of the sliding adjusting block is also fixed with a positioning block, a distance adjusting screw rod 8 is horizontally positioned on the positioning block through a thread structure, and the top end (right end) of the adjusting screw rod is hinged with the sliding adjusting block. The adjustment of the relative distance between the measuring end of the dial indicator and the sliding adjusting block (namely, the adjustment of the zeroing position) can be realized by rotating the distance adjusting screw.
The sliding adjusting block is also in sliding fit with the positioning frame through a guide structure; the guide structure comprises a sliding groove formed in the positioning frame and a sliding block which is manufactured on the sliding adjusting block and inserted into the sliding groove for sliding fit.
Furthermore, the two sliding columns are respectively sleeved with a pressure spring; the upper end and the lower end of the pressure spring respectively prop against the reset block and the base, so that jacking force is applied to the composite block, and the upper position and the lower position of the positioning frame are convenient to adjust.
Further, in the two sliding columns, the upper part of the left sliding column is also provided with threads and corresponding limit nuts; the nut is screwed, and the upper position and the lower position of the positioning frame can be adjusted, so that the height requirement of different samples during measurement is met.
The clamping device comprises two fixed blocks and a fixed screw rod horizontally positioned on one of the fixed blocks through a thread structure, wherein a certain interval distance is kept between the two fixed blocks for placing a sample during testing; the sample can be clamped after the fixing screw is tightened (see fig. 1 for a state in which the sample is clamped by the sample clamping device).
The working principle of the utility model is as follows:
before measurement, two samples are aligned and fixed (as shown in figure 1, the two samples are vertically arranged, the lower parts of the samples are clamped and fixed by a clamping device, the fracture parts of the samples are suspended and stretched upwards), a positioning frame is pressed down by a pressing hand, and a first contact block and a second contact block are respectively deflected to the left side and the right side under the influence of the maximum deflection shapes of the two sides of the samples; at the moment, the first contact block drives the positioning frame and the sliding adjustment fixing plate to move leftwards relative to the measuring end of the dial indicator, and the second contact block drives the dial indicator dial to move rightwards, so that the measurement of the relative offset of the dial indicator is realized (the dial indicator is zeroed before measurement, and the expansion value can be measured at one time); the working state is shown in fig. 1.
Claims (9)
1. The device for measuring the expansion value of the Charpy impact sample comprises a sample clamping device (13) and a dial indicator (5), wherein the sample clamping device is positioned on a base; the method is characterized in that: the device also comprises two slide posts (7) which are vertically arranged and keep a distance, two slide bars (6) which are positioned on the two slide posts one by one through a composite block (1), a positioning frame (11) which can be horizontally and slidably positioned on the two slide bars, and two contact blocks which are positioned in the positioning frame and touch a sample so as to perform measurement; the left contact block (2) of the two contact blocks is fixed with the inner wall of the positioning frame, and the right contact block (4) is pressed by an external force and has a tendency of moving towards the left contact block; the dial indicator is positioned on the positioning frame through a measuring structure.
2. The charpy impact specimen expansion value measuring device according to claim 1, wherein: the right slide bar of the two slide bars is in sliding fit with the right slide block; the right spring (16) is sleeved on the right slide bar and provides the external force.
3. The charpy impact specimen expansion value measuring device according to claim 2, wherein: the measuring structure comprises a sliding adjusting block (10) vertically arranged on the outer side surface of the positioning frame and a bracket connected with the right sliding block and fixed with the dial indicator; the measuring end of the dial indicator horizontally extends and abuts against the sliding adjusting block.
4. The charpy impact specimen expansion value measuring device according to claim 3, wherein: the outer side surface of the positioning frame is also fixedly provided with a positioning block (9), a distance-adjusting screw is horizontally positioned on the positioning block through a thread structure, and the top end of the adjusting screw is hinged with the sliding adjusting block; the sliding adjusting block is also in sliding fit with the positioning frame through a guide structure.
5. The charpy impact specimen expansion value measuring device according to claim 4, wherein: the guide structure comprises a sliding groove (15) horizontally arranged on the positioning frame and a sliding block which is manufactured on the sliding adjusting block and is in sliding fit with the sliding groove.
6. The charpy impact specimen expansion value measuring device according to claim 5, wherein: the left slide bar is sleeved with a left spring, and two ends of the left spring apply force to the left slide bar and the positioning frame respectively.
7. The charpy impact specimen expansion value measuring device according to claim 6, wherein: the two sliding columns are also respectively sleeved with a reset block in a sliding way and a pressure spring for jacking the reset block upwards; the left slide bar and the right slide bar are respectively fixed with the two reset blocks one by one.
8. The charpy impact specimen expansion value measuring device according to claim 7, wherein: the upper part of the left sideslip column is also provided with threads and corresponding limit nuts so as to adjust the upper and lower positions of the positioning frame.
9. The charpy impact specimen expansion value measuring device of claim 8, wherein: the clamping device comprises two fixed blocks arranged at intervals and a fixed screw horizontally positioned on one of the fixed blocks for clamping the sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320042062.3U CN219455678U (en) | 2023-01-04 | 2023-01-04 | Charpy impact sample expansion value measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320042062.3U CN219455678U (en) | 2023-01-04 | 2023-01-04 | Charpy impact sample expansion value measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219455678U true CN219455678U (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320042062.3U Active CN219455678U (en) | 2023-01-04 | 2023-01-04 | Charpy impact sample expansion value measuring device |
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| Country | Link |
|---|---|
| CN (1) | CN219455678U (en) |
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2023
- 2023-01-04 CN CN202320042062.3U patent/CN219455678U/en active Active
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