CN220019170U - Micro-load stretching clamp - Google Patents
Micro-load stretching clamp Download PDFInfo
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- CN220019170U CN220019170U CN202320639979.1U CN202320639979U CN220019170U CN 220019170 U CN220019170 U CN 220019170U CN 202320639979 U CN202320639979 U CN 202320639979U CN 220019170 U CN220019170 U CN 220019170U
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- 230000001681 protective effect Effects 0.000 claims abstract description 46
- 238000005260 corrosion Methods 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 230000007797 corrosion Effects 0.000 claims abstract description 12
- 239000012634 fragment Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of micro-load stretching clamps, in particular to a micro-load stretching clamp, which enables a device to adapt to test pieces with different diameters through a width adjusting device, adapts to conical inclination angles at two ends of different test pieces through an angle adjusting device, and improves the adaptability and practicality of the device; the fixed part of the test piece is isolated from the outside through the protective shell, so that the risk of splashing broken fragments of the test piece is reduced; the devices are quickly connected and fixed through the fixing device, so that the experimental rate is improved; by arranging the metal anti-corrosion coating on the whole device, the corrosion condition of the device is reduced, the service life of the device is prolonged, and the practicability of the device is improved; the clamping device comprises a clamp, a limiting block and a clamping groove, wherein the clamping groove and the limiting block are arranged on the clamp; the device also comprises a width adjusting device, an angle adjusting device, a protective shell, a fixing device and a metal anti-corrosion coating.
Description
Technical Field
The utility model relates to the technical field of micro-load stretching clamps, in particular to a micro-load stretching clamp.
Background
The tensile test refers to a test method for measuring the properties of a material under an axial tensile load. The elastic limit, the elongation, the elastic modulus, the proportion limit, the area reduction amount, the tensile strength, the yield point, the yield strength and other tensile performance indexes of the material can be determined by using data obtained by a tensile test, the two ends of a test piece are fixed after the test piece in the tensile test is required to be made into a fixed shape, and then the test is carried out, and the two ends of the test piece are generally made into cones for convenient fixation.
The utility model patent in China with the application number of CN201922246363.4 relates to a clamp for a miniature tensile sample, which comprises a clamp, a limiting block and a clamping groove, and can ensure the accuracy and feasibility of a tensile test.
However, the above device has the following problems in practical use: firstly, for different taper angles of two ends of different test pieces, the contact surface between the cone and the clamp is smaller when the test pieces are fixed, and displacement is easy to occur in the stretching process, so that the accuracy of experimental data is insufficient; and secondly, the clamp part is fixed by a rod bolt, and the rod bolt is small in size and easy to lose in the mounting and dismounting process.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the device which can adapt to test pieces with different diameters through the width adjusting device, and adapt to the conical inclination angles of the two ends of different test pieces through the angle adjusting device, so that the adaptability and the practicability of the device are improved; the fixed part of the test piece is isolated from the outside through the protective shell, so that the risk of splashing broken fragments of the test piece is reduced; the devices are quickly connected and fixed through the fixing device, so that the experimental rate is improved; the metal anti-corrosion coating is arranged on the device, so that the corrosion condition of the device is reduced, and the service life of the device and the practicability of the device are improved.
The utility model relates to a micro-load stretching clamp, which comprises a clamp, a limiting block and a clamping groove, wherein the clamping groove and the limiting block are arranged on the clamp; the device also comprises a width adjusting device, an angle adjusting device, a protective shell, a fixing device and a metal anti-corrosion coating, wherein the width adjusting device is used for adjusting the opening size of the clamp; the angle adjusting device is arranged on the width adjusting device and is used for adjusting the inclination angle of the clamp; the protective shell is connected with the width adjusting device and seals the fixed end of the test piece; the fixing device is arranged on the protective shell and is used for fixing the connection between the clamps; providing a metal corrosion-resistant coating on the device; the device can adapt to test pieces with different diameters through the width adjusting device, and adapt to conical inclination angles at two ends of different test pieces through the angle adjusting device, so that the adaptability and the practicability of the device are improved; the fixed part of the test piece is isolated from the outside through the protective shell, so that the risk of splashing broken fragments of the test piece is reduced; the devices are quickly connected and fixed through the fixing device, so that the experimental rate is improved; through setting up the anticorrosive coating of metal to the device is whole, reduces the device corrosion condition, has improved the practicality of life and the device of device.
Preferably, the width adjusting device comprises a C-shaped frame, a first nut, a first adjusting screw, a baffle, clamping plates and arc grooves, wherein the left parts of the front end face and the rear end face of the C-shaped frame are respectively connected with the first nut, the first adjusting screw is connected with the first nut through threads of the first adjusting screw and can move on the first nut, the end face of the first adjusting screw, which is positioned in the C-shaped frame, is connected with the baffle through a base, the first adjusting screw can push the baffle to move, the other end face of the baffle is connected with the clamping plates through rotating shafts, and the arc grooves are respectively formed in the opposite end faces of the two groups of clamping plates; the first adjusting screw rod is rotated to push and pull the baffle plate to carry out transverse displacement, so that test pieces with different diameters are adapted; the two groups of clamping plates are fixed at the positions of the test piece through the arc-shaped grooves on the clamping plates, so that the transverse displacement of the test piece in the stretching process is reduced, and experimental errors are reduced.
Preferably, the angle adjusting device comprises a second nut, a second adjusting screw and a contact, wherein the two groups of second nuts are respectively arranged on the front end face and the rear end face of the C-shaped frame, the second adjusting screw is connected with the second nut, the moving end of the second adjusting screw penetrates through the C-shaped frame to enter the C-shaped frame to be contacted with the back of the clamping plate, the second nut is positioned on the right side of the first nut, and the moving end of the second adjusting screw is connected with the contact; the length of the movable end of the second adjusting screw rod in the C-shaped frame is changed by rotating the second adjusting screw rod, so that the contact pushes the clamping plate to change the inclination angle of the clamping plate, the contact area between the clamping plate and the test piece is increased, the stress area is increased, and the stability of the device is improved.
Preferably, the protective shell comprises an upper protective shell, a lower protective shell, a rectangular groove and a D-shaped groove, wherein the rectangular groove and the D-shaped groove are respectively formed in the upper protective shell and the lower protective shell, and two ends of the D-shaped groove are respectively connected with the rectangular groove and the external environment; seal the test piece fixed area through protective housing, reduce the influence of test piece fracture to experimental environment, improved the practicality of device.
Preferably, the fixing device comprises a fixing plate, rectangular holes, limit bolts and limit holes, wherein a plurality of groups of fixing plates are connected to the end faces of the rectangular grooves and the D-shaped grooves formed in the lower protective shell, the rectangular holes are formed in the corresponding positions of the corresponding end faces of the upper protective shell and the C-shaped frame, the fixing plates can be inserted into the rectangular holes in the corresponding positions, the plurality of groups of limit bolts are arranged on the side faces of the upper protective shell, the moving ends of the limit bolts penetrate through the side faces of the upper protective shell and enter the corresponding rectangular holes, the limit holes are formed in the rectangular holes, and chamfer angles are formed at the edges of the limit holes; the multi-group fixing plates on the lower protective shell are inserted into the rectangular holes on the upper protective shell, and then the movable ends of the limit bolts are enabled to enter the limit holes on the fixing plates through the rotary limit bolts, so that the positions of the C-shaped frame, the lower protective shell and the upper protective shell are fixed, test errors caused by loosening of the clamp in the stretching process are prevented, the test preparation time is shortened through quick fixation of the limit bolts, and the practicability of the device is improved.
Preferably, the metal corrosion protection coating is used to protect the device from corrosion; by carrying out anti-corrosion spraying on the surface of the metal part, the corrosion speed of the device is reduced, and the service life of the device and the practicability of the device are improved.
Compared with the prior art, the utility model has the beneficial effects that: the device can adapt to test pieces with different diameters through the width adjusting device, and adapt to conical inclination angles at two ends of different test pieces through the angle adjusting device, so that the adaptability and the practicability of the device are improved; the fixed part of the test piece is isolated from the outside through the protective shell, so that the risk of splashing broken fragments of the test piece is reduced; the devices are quickly connected and fixed through the fixing device, so that the experimental rate is improved; through setting up the anticorrosive coating of metal to the device is whole, reduces the device corrosion condition, has improved the practicality of life and the device of device.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the structure of the angle adjusting device;
FIG. 4 is a first axial side schematic view of the protective housing;
FIG. 5 is a second axial side schematic view of the protective housing;
the reference numerals in the drawings: 1. a C-shaped frame; 2. a first nut; 3. a first adjusting screw; 4. a baffle; 5. a clamping plate; 6. an arc-shaped groove; 7. a second nut; 8. a second adjusting screw; 9. a contact; 10. an upper protective shell; 11. a lower protective shell; 12. rectangular grooves; 13. a D-shaped groove; 14. a fixing plate; 15. a rectangular hole; 16. a limit bolt; 17. and a limiting hole.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
The angle adjusting device as shown in fig. 1, 2, 3, 4 and 5 is mounted on the width adjusting device; the fixing device is arranged on the protective shell, and the protective shell is connected with the width adjusting device;
firstly, placing a fixed end of a test piece into a C-shaped frame 1, then rotating a first adjusting screw 3 to drive a baffle 4 to move to a proper position, then rotating a second adjusting screw 8 to enable a contact 9 to push a clamping plate 5 to press the fixed end of the test piece, fixing the position of the fixed end of the test piece through an arc-shaped groove 6, then inserting a plurality of groups of fixing plates 14 on a lower protecting shell 11 into rectangular holes 15 on an upper protecting shell 10, then enabling a moving end of a limiting bolt 16 to enter into limiting holes 17 on the fixing plates 14 through rotating a limiting bolt 16, and fixing the positions of the C-shaped frame 1, the lower protecting shell 11 and the upper protecting shell 10, and then normally performing a stretching experiment;
the width adjusting device comprises a C-shaped frame 1, a first nut 2, a first adjusting screw 3, a baffle 4, clamping plates 5 and arc grooves 6, wherein the left parts of the front end face and the rear end face of the C-shaped frame 1 are respectively connected with the first nut 2, the first adjusting screw 3 is connected with the first nut 2 through self threads and can move on the first nut 2, the end face of the first adjusting screw 3 positioned in the C-shaped frame 1 is connected with the baffle 4 through a base, the first adjusting screw 3 can push the baffle 4 to move, the other end face of the baffle 4 is connected with the clamping plates 5 through rotating shafts, and the arc grooves 6 are respectively formed in the opposite end faces of the two groups of clamping plates 5;
the angle adjusting device comprises a second nut 7, a second adjusting screw rod 8 and a contact 9, wherein two groups of second nuts 7 are respectively arranged on the front end face and the rear end face of the C-shaped frame 1, the second adjusting screw rod 8 is connected with the second nut 7, the moving end of the second adjusting screw rod 8 penetrates through the C-shaped frame 1 to enter the C-shaped frame 1 to be contacted with the back of the clamping plate 5, the second nut 7 is positioned on the right side of the first nut 2, and the contact 9 is connected to the moving end of the second adjusting screw rod 8;
the protective shell comprises an upper protective shell 10, a lower protective shell 11, a rectangular groove 12 and a D-shaped groove 13, wherein the rectangular groove 12 and the D-shaped groove 13 are formed in the upper protective shell 10 and the lower protective shell 11, and two ends of the D-shaped groove 13 are respectively connected with the rectangular groove 12 and the external environment;
the fixing device comprises a fixing plate 14, rectangular holes 15, limit bolts 16 and limit holes 17, wherein a plurality of groups of fixing plates 14 are connected to the end faces of the lower protective shell 11, which are provided with the rectangular grooves 12 and the D-shaped grooves 13, rectangular holes 15 are formed in the corresponding positions of the corresponding end faces of the upper protective shell 10 and the C-shaped frame 1, the fixing plates 14 can be inserted into the rectangular holes 15 in the corresponding positions, a plurality of groups of limit bolts 16 are arranged on the side face of the upper protective shell 10, the moving ends of the limit bolts 16 penetrate through the side face of the upper protective shell 10 and enter the corresponding rectangular holes 15, limit holes 17 are formed in the rectangular holes 15, and chamfering is arranged on the edges of the limit holes 17;
the device can adapt to test pieces with different diameters through the width adjusting device, and adapt to conical inclination angles at two ends of different test pieces through the angle adjusting device, so that the adaptability and the practicability of the device are improved; the fixed part of the test piece is isolated from the outside through the protective shell, so that the risk of splashing broken fragments of the test piece is reduced; the device is fast connected and fixed through the fixing device, so that the experimental rate is improved.
Example 2
The improvement over the first embodiment, including providing the device with a metallic corrosion resistant coating;
the metal anti-corrosion coating is used for anti-corrosion of the device;
by carrying out anti-corrosion spraying on the surface of the metal part, the corrosion speed of the device is reduced, and the service life of the device and the practicability of the device are improved.
As shown in fig. 1 to 5, in the micro-load stretching clamp of the utility model, when the micro-load stretching clamp works, firstly, the fixed end of a test piece is placed into a C-shaped frame 1, then a first adjusting screw 3 is rotated to drive a baffle 4 to move to a proper position, then a second adjusting screw 8 is rotated to enable a contact 9 to push a clamping plate 5 to press the fixed end of the test piece, the fixed end of the test piece is fixed in position through an arc-shaped groove 6, then a plurality of groups of fixing plates 14 on a lower protecting shell 11 are inserted into rectangular holes 15 on an upper protecting shell 10, and then the moving end of the limiting bolt 16 is enabled to enter into limiting holes 17 on the fixing plates 14 through rotating a limiting bolt 16, so that the positions of the C-shaped frame 1, the lower protecting shell 11 and the upper protecting shell 10 are fixed, and then a stretching experiment is normally carried out.
The small-load stretching clamp 3 is purchased in the market, and a person skilled in the art only needs to install and operate according to the attached use instruction, and the creative labor of the person skilled in the art is not needed.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The small-load stretching clamp comprises a clamp, a limiting block and a clamping groove, wherein the clamping groove and the limiting block are arranged on the clamp; the device is characterized by further comprising a width adjusting device, an angle adjusting device, a protective shell, a fixing device and a metal anti-corrosion coating, wherein the width adjusting device is used for adjusting the opening size of the clamp; the angle adjusting device is arranged on the width adjusting device and is used for adjusting the inclination angle of the clamp; the protective shell is connected with the width adjusting device and seals the fixed end of the test piece; the fixing device is arranged on the protective shell, the fixing device fixes the connection between the clamps, and the metal anti-corrosion coating is attached to each device.
2. The small-load stretching clamp as claimed in claim 1, wherein the width adjusting device comprises a C-shaped frame (1), a first nut (2), a first adjusting screw (3), a baffle (4), clamping plates (5) and arc grooves (6), wherein the left parts of the front end face and the rear end face of the C-shaped frame (1) are respectively connected with the first nut (2), the first adjusting screw (3) is connected with the first nut (2) through self threads and can move on the first nut (2), the end face of the first adjusting screw (3) positioned in the C-shaped frame (1) is connected with the baffle (4) through a base, the first adjusting screw (3) can push the baffle (4) to move, the clamping plates (5) are connected on the other end face of the baffle (4) through rotating shafts, and the arc grooves (6) are respectively formed in the opposite end faces of the two groups of clamping plates (5).
3. The micro-load stretching clamp according to claim 2, wherein the angle adjusting device comprises a second nut (7), a second adjusting screw (8) and contacts (9), the two groups of second nuts (7) are respectively arranged on the front end face and the rear end face of the C-shaped frame (1), the second adjusting screw (8) is connected with the second nut (7), the moving end of the second adjusting screw (8) penetrates through the C-shaped frame (1) to enter the C-shaped frame (1) to be in contact with the back of the clamping plate (5), the second nut (7) is positioned on the right side of the first nut (2), and the contacts (9) are connected to the moving end of the second adjusting screw (8).
4. The micro-load stretching clamp according to claim 1, wherein the protective shell comprises an upper protective shell (10), a lower protective shell (11), a rectangular groove (12) and a D-shaped groove (13), the rectangular groove (12) and the D-shaped groove (13) are formed in the upper protective shell (10) and the lower protective shell (11), and two ends of the D-shaped groove (13) are respectively connected with the rectangular groove (12) and the external environment.
5. The micro-load stretching clamp as claimed in claim 4, wherein the fixing device comprises a fixing plate (14), rectangular holes (15), limiting bolts (16) and limiting holes (17), a plurality of groups of fixing plates (14) are connected to the end faces of the rectangular grooves (12) and the D-shaped grooves (13) formed in the lower protecting shell (11), the rectangular holes (15) are formed in the corresponding positions of the corresponding end faces of the upper protecting shell (10) and the C-shaped frame (1), the fixing plates (14) can be inserted into the rectangular holes (15) in the corresponding positions, a plurality of groups of limiting bolts (16) are arranged on the side face of the upper protecting shell (10), the moving ends of the limiting bolts (16) penetrate through the side face of the upper protecting shell (10) and enter the corresponding rectangular holes (15), the limiting holes (17) are formed in the rectangular holes (15), and chamfers are formed on the edges of the limiting holes (17).
6. A microload stretching clamp as in claim 1 wherein the metal corrosion resistant coating is used to protect the device from corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320639979.1U CN220019170U (en) | 2023-03-28 | 2023-03-28 | Micro-load stretching clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320639979.1U CN220019170U (en) | 2023-03-28 | 2023-03-28 | Micro-load stretching clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220019170U true CN220019170U (en) | 2023-11-14 |
Family
ID=88683971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320639979.1U Active CN220019170U (en) | 2023-03-28 | 2023-03-28 | Micro-load stretching clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220019170U (en) |
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2023
- 2023-03-28 CN CN202320639979.1U patent/CN220019170U/en active Active
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