CN216718022U - Horizontal-pushing type self-correcting tensile test tool - Google Patents
Horizontal-pushing type self-correcting tensile test tool Download PDFInfo
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- CN216718022U CN216718022U CN202122900535.2U CN202122900535U CN216718022U CN 216718022 U CN216718022 U CN 216718022U CN 202122900535 U CN202122900535 U CN 202122900535U CN 216718022 U CN216718022 U CN 216718022U
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Abstract
The utility model discloses a horizontal-pushing type self-correcting tensile test tool which comprises a clamping mechanism, wherein the clamping mechanism comprises two symmetrically arranged clamping bodies and hydraulic clamps respectively connected with the clamping bodies, a funnel positioning groove is formed in the top of a clamping space formed by the two clamping bodies, a notch of the funnel positioning groove extends into the clamping space, one end of a sample to be tested is inserted into the funnel positioning groove, and two sides of the sample to be tested are respectively contacted with the clamping bodies; a positioning mechanism used for ensuring that the two ends of the clamping body are uniformly stressed is arranged between the bottoms of the adjacent clamping bodies of the adjusting mechanism used for adjusting the position of the sample and arranged at the bottom of the funnel positioning groove; by arranging the clamping mechanism, the funnel positioning groove, the adjusting mechanism and the positioning mechanism, the situation that the test cannot be performed due to the fact that the specifications of part of samples are limited is avoided, convenience is brought to the test, and the funnel positioning device has better practicability.
Description
Technical Field
The utility model belongs to the technical field of material bending tests, and particularly relates to a horizontal-pushing type self-correcting tensile test tool.
Background
The tensile test is a mechanical property test under the action of axial static tensile force. As an important test for obtaining material performance, the method is widely applied to various industries, particularly in the fields of steel, construction industry, aerospace and the like, and tests aiming at metal materials are carried out to obtain the properties of tensile strength, yield strength, elastic modulus and the like as important indexes for measuring the materials. Under the existing condition, the test requires that a processed sample is clamped on a tensile testing machine for testing, the test principle is simple, and the process is efficient.
Analyzing the existing test method has the following defects:
a. the defect of the type of the clamped sample (in order to reduce the pre-loading load, the clamping method is changed from a wedge-shaped axial flat push mode to a transverse flat push mode), so that the length of the sample is increased, and when the length of a part of specification is limited, the test cannot be carried out. Meanwhile, the test operation is inconvenient.
b. The chuck of the testing machine is fixed, so that the influence of transverse force cannot be effectively eliminated, and partial testing results have deviation.
c. The clamping position is not fixed, which brings fluctuation of test results.
d. The clamping caliber position is not protected, so that the injury of personnel is easily caused, and serious injury accidents occur for many times in a practical test.
Therefore, it is necessary to design a horizontal push type self-calibration tensile test tool to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a horizontal-pushing type self-correcting tensile test tool, which is used for solving the problems.
The technical scheme of the utility model is as follows:
a horizontal-pushing type self-correcting tensile test tool comprises a clamping mechanism, wherein the clamping mechanism comprises two symmetrically arranged clamping bodies and hydraulic clamps respectively connected with the clamping bodies, a funnel positioning groove is formed in the top of a clamping space formed by the two clamping bodies, a notch of the funnel positioning groove extends into the clamping space, one end of a sample to be tested is inserted into the funnel positioning groove, and two sides of the sample to be tested are respectively contacted with the clamping bodies; the bottom of funnel constant head tank is equipped with and is used for adjusting being equipped with between the bottom of the adjacent supporting body of adjustment mechanism of sample position and is used for guaranteeing that the even positioning mechanism of supporting body both ends atress.
The working principle of the technical scheme is as follows:
the clamping bodies that two symmetries set up are used for the centre gripping sample, and hydraulic fixture inwards extrudees the clamping body, and the funnel groove degree of depth is close with sample centre gripping length to make the sample have as much as possible centre gripping length, adjustment mechanism is used for adjusting the centre gripping length of sample, and during the clamping body both ends centre gripping that positioning mechanism avoided, two clamping bodies are the loudspeaker form, lead to reducing clamping-force.
By arranging the clamping mechanism, the funnel positioning groove, the adjusting mechanism and the positioning mechanism, the situation that the test cannot be performed due to the fact that the specifications of part of samples are limited is avoided, convenience is brought to the test, and the funnel positioning device has better practicability.
In order to better implement the utility model, the hydraulic clamp is further provided with a connecting block, and the connecting block is connected with the clamping body through a ball socket.
The connecting block is connected with the ball socket of the clamping body, and can freely rotate in a small range, so that the self-centering of the sample stretching is realized.
In order to better implement the utility model, further, the adjusting mechanism comprises an eccentric wheel and a first knob, the eccentric wheel is arranged inside the funnel positioning groove, one end of the first knob extends into the funnel positioning groove and is connected with the eccentric wheel, and the first knob is rotatably connected with the side wall of the funnel positioning groove.
When the test device is used, the first knob is rotated to change the position of the eccentric wheel, so that the test sample is pushed to move up and down, and the height is adjusted.
In order to better implement the utility model, further, the positioning mechanism comprises balance blocks, and positioning sockets are correspondingly arranged on opposite sides of the bottoms of the adjacent clamping bodies respectively.
When the test diameter is less sample, two holding body up end distance can be less, the second knob that needs to rotate this moment, it moves down to make the regulation pole drive the balancing piece, in locating the balancing piece to the great spacing's of lower extreme location nest, the holding body down end also can be when hydraulic fixture presss from both sides tightly like this, the distance is close to, thereby be close to the intermediate position simultaneously with the up end, thereby it is balanced, avoid appearing "horn mouth" shape centre gripping, lead to the upper and lower distance difference too big, cause the clamping-force not enough, when centre gripping jumbo size sample, then reverse operation, play the balance and the synchronization of certain degree from top to bottom.
In order to better realize the utility model, the positioning mechanism further comprises an adjusting rod and a second knob, wherein a plurality of positioning nests with gradually increased sizes or gradually decreased sizes are sequentially arranged on the opposite sides of the bottoms of the adjacent clamping bodies from top to bottom, the adjusting rod is rotatably connected with the bottoms of the funnel positioning grooves through bearings, the adjusting rod is connected with a balance block, the second knob is connected with the funnel positioning grooves through a support, one side of the support is slidably connected with the adjusting rod, one end of the second knob penetrates through the support and is provided with a gear, and the adjusting rod is correspondingly provided with a meshing rack along the length direction.
And the second knob is rotated to drive the adjusting rod to rotate, so that the balance block moves up and down.
In order to better implement the utility model, a pointer is further arranged on the balance weight, and a preset position scale is arranged on the positioning pit.
When the pointer is aligned with the preset position scale position, the position of the balance weight is adjusted to be in place.
In order to better realize the utility model, the two side surfaces of the balance weight, which are contacted with the positioning socket, are cambered surfaces, and the positioning socket is provided with an arc-shaped groove matched with the cambered surfaces.
When the clamping body is clamped tightly, the balance block is clamped, so that the purpose of balancing two ends of the clamping block is achieved.
In order to better implement the utility model, the diameter of the top of the notch of the funnel positioning groove is larger than that of the sample.
The notch top diameter ratio of funnel constant head tank is slightly bigger than the sample diameter to avoid positions such as people's hands to get into wherein, cause personnel's injury.
In order to better implement the utility model, a transparent protective cover is further arranged on the outer side surface of the clamping mechanism.
And a transparent protective cover is arranged to prevent sample fragments from flying out.
The utility model has the beneficial effects that:
1. by arranging the clamping mechanism, the funnel positioning groove, the adjusting mechanism and the positioning mechanism, the situation that the test cannot be performed due to the fact that the specifications of part of samples are limited is avoided, convenience is brought to the test, and the funnel positioning groove have better practicability;
2. the clamping position is fixed, so that the fluctuation of a test result is reduced or avoided;
3. the utility model can effectively eliminate the influence of transverse force and reduce or avoid the deviation of partial test results;
4. the utility model is sleeved with the transparent protective cover to avoid the injury of personnel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the clamping body;
FIG. 3 is a front view of a funnel positioning slot;
FIG. 4 is a side view of a funnel positioning slot;
FIG. 5 is a schematic structural view of an adjustment mechanism;
fig. 6 is a schematic structural view of the positioning mechanism.
Description of reference numerals:
10. a clamping mechanism; 11. a clamping body; 12. a hydraulic clamp; 13. connecting blocks; 20. a funnel positioning slot; 30. an adjustment mechanism; 31. an eccentric wheel; 32. a first knob; 40. a positioning mechanism; 41. adjusting a rod; 42. a second knob; 43. a counterbalance; 44. a positioning nest; 45. a pointer.
Detailed Description
Example 1:
as shown in fig. 1, a horizontal-pushing type self-correcting tensile test tool comprises a clamping mechanism 10, wherein the clamping mechanism 10 comprises two symmetrically arranged clamping bodies 11 and hydraulic clamps 12 respectively connected with the clamping bodies 11, a funnel positioning groove 20 is arranged at the top of a clamping space formed by the two clamping bodies 11, a notch of the funnel positioning groove 20 extends into the clamping space, one end of a sample to be tested is inserted into the funnel positioning groove 20, and two sides of the sample to be tested are respectively contacted with the clamping bodies 11; the bottom of the funnel positioning groove 20 is provided with an adjusting mechanism 30 for adjusting the position of the sample, and a positioning mechanism 40 for ensuring the two ends of the clamping body 11 to be evenly stressed is arranged between the bottoms of the adjacent clamping bodies 11.
The two symmetrically arranged clamping bodies 11 are used for clamping a sample, the hydraulic clamp 12 inwards extrudes the clamping bodies 11, the depth of a funnel groove is close to the clamping length of the sample, so that the sample has the clamping length as much as possible, the adjusting mechanism 30 is used for adjusting the clamping length of the sample, and when the positioning mechanism 40 avoids clamping two ends of the clamping bodies 11, the two clamping bodies 11 are horn-shaped, so that the clamping force is reduced; according to the funnel positioning device, the clamping mechanism 10, the funnel positioning groove 20, the adjusting mechanism 30 and the positioning mechanism 40 are arranged, so that the situation that a test cannot be performed due to the fact that the specifications of part of samples are limited is avoided, convenience is brought to the test, and the funnel positioning device has good practicability.
Example 2:
the present embodiment is optimized based on embodiment 1, as shown in fig. 2-3, the hydraulic clamp 12 is provided with a connecting block 13, the connecting block 13 is connected with the clamping body 11 through a ball socket, the adjusting mechanism 30 includes an eccentric wheel 31 and a first knob 32, the eccentric wheel 31 is disposed inside the funnel positioning slot 20, one end of the first knob 32 extends into the funnel positioning slot 20 and is connected with the eccentric wheel 31, and the first knob 32 is rotatably connected with the side wall of the funnel positioning slot 20.
The connecting block 13 is in ball-and-socket connection with the clamping body 11, can rotate freely in a small range, realizes the self-centering of the sample stretching, and when in use, the first knob 32 is rotated to change the position of the eccentric wheel 31, so as to push the sample to move up and down, thereby adjusting the height.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
the present embodiment is optimized on the basis of embodiment 1 or 2, as shown in fig. 6, the positioning mechanism 40 includes a balance block 43, opposite sides of the bottom of the adjacent clamping body 11 are respectively and correspondingly provided with a positioning socket 44, the positioning mechanism 40 further includes an adjusting rod 41 and a second knob 42, opposite sides of the bottom of the adjacent clamping body 11 are sequentially provided with a plurality of positioning sockets 44 with increasing size or decreasing size from top to bottom, the adjusting rod 41 is rotatably connected with the bottom of the funnel positioning groove 20 through a bearing, the adjusting rod 41 is connected with the balance block 43, the second knob 42 is connected with the funnel positioning groove 20 through a support, one side of the support is slidably connected with the adjusting rod 41, one end of the second knob 42 passes through the support and is provided with a gear, and the adjusting rod 41 is correspondingly provided with a meshing rack along the length direction.
When a sample with a small diameter is tested, the distance between the upper end faces of the two clamping bodies 11 is small, the second knob 42 needs to be rotated at the moment, the adjusting rod 41 drives the balance block 43 to move downwards, the balance block 43 is positioned in the positioning socket 44 with a large distance between the lower end faces, and thus the lower end faces of the clamping bodies 11 are close to each other when the hydraulic clamp 12 clamps, so that the lower end faces and the upper end faces are close to each other at the same time, and therefore balance is achieved, the phenomenon that clamping in a horn mouth shape is caused, the difference between the upper distance and the lower distance is too large, and the clamping force is insufficient is avoided.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
this embodiment is optimized based on embodiment 3, as shown in fig. 4, the diameter of the top of the notch of the funnel positioning slot 20 is larger than that of the sample, and the side wall of the clamping mechanism 10 is provided with a transparent protective cover.
The notch top diameter ratio of funnel constant head tank 20 is slightly bigger than the sample diameter to avoid positions such as people's hands to get into wherein, cause personnel's injury, set up transparent safety cover, avoid the sample piece departure.
Other parts of this embodiment are the same as those of embodiment 3, and thus are not described again.
Example 5:
as shown in fig. 1 to 6, a horizontal pushing type self-correcting tensile test tool comprises a clamping mechanism 10, wherein the clamping mechanism 10 comprises two symmetrically arranged clamping bodies 11 and hydraulic clamps 12 respectively connected with the clamping bodies 11, a funnel positioning groove 20 is arranged at the top of a clamping space formed by the two clamping bodies 11, a notch of the funnel positioning groove 20 extends into the clamping space, one end of a sample to be tested is inserted into the funnel positioning groove 20, and two sides of the sample to be tested are respectively contacted with the clamping bodies 11; the bottom of the funnel positioning groove 20 is provided with an adjusting mechanism 30 for adjusting the position of the sample, and a positioning mechanism 40 for ensuring the uniform stress of two ends of the clamping body 11 is arranged between the bottoms of the adjacent clamping bodies 11;
the hydraulic clamp 12 is provided with a connecting block 13, the connecting block 13 is connected with the clamping body 11 through a ball socket, the adjusting mechanism 30 comprises an eccentric wheel 31 and a first knob 32, the eccentric wheel 31 is arranged inside the funnel positioning groove 20, one end of the first knob 32 extends into the funnel positioning groove 20 and is connected with the eccentric wheel 31, and the first knob 32 is rotatably connected with the side wall of the funnel positioning groove 20;
the positioning mechanism 40 comprises a balance block 43, positioning nests 44 are correspondingly arranged on opposite sides of the bottom of adjacent clamping bodies 11 respectively, the positioning mechanism 40 further comprises an adjusting rod 41 and a second knob 42, a plurality of positioning nests 44 with gradually increasing sizes or gradually decreasing sizes are sequentially arranged on opposite sides of the bottom of adjacent clamping bodies 11 from top to bottom, the adjusting rod 41 is rotatably connected with the bottom of the funnel positioning groove 20 through a bearing, the adjusting rod 41 is connected with the balance block 43, the second knob 42 is connected with the funnel positioning groove 20 through a support, one side of the support is slidably connected with the adjusting rod 41, one end of the second knob 42 penetrates through the support and is provided with a gear, the adjusting rod 41 is correspondingly provided with a meshing rack along the length direction, a pointer 45 is arranged on the balance block 43, preset position scales are arranged on the positioning nests 44, and two side faces of the balance block 43, which are in contact with the positioning nests 44, are cambered surfaces, the positioning socket 44 is provided with an arc-shaped groove matched with the arc surface;
the diameter at the notch top of funnel constant head tank 20 is greater than the diameter of sample, fixture 10's lateral wall is equipped with transparent safety cover.
The specific operation method of this embodiment is as follows:
1. preparation of the test
Mounting the test fixture on the upper fixture base and the lower fixture base of the test equipment, wherein the chuck is not clamped; in order to counteract the influence of the upper clamping head, the force value of the testing machine is reset at the moment.
2. adding holding block selection
According to the diameter of the sample, the clamping body 11 and the balance weight 43 with proper diameters are selected.
Adjustment of clamping height of clamp
And (3) loading the sample into the lower clamping body 11 from the funnel positioning groove 20, and adjusting the height and the position of the sample in the lower clamping body 11 according to the length of the sample to ensure that the sample holding section slightly exposes out of the positioning block. And moving the upper chuck to drive the upper clamping body 11 to move until the sample is installed into the upper clamping body 11.
Adjusting the position of the counterweight 43
According to the size of the diameter of the sample, the second knob 42 drives the balance weight 43 to move, if a small sample is tested, the balance weight 43 is moved downwards, and the pointer 45 of the balance weight 43 is observed at the same time until the pointer points to the preset position scale. .
The machine is operated to grip the lower and upper jaws to grip the sample and maintain the sample in a centered position.
5. Use of protective covers
And the transparent protective cover is closed, so that sample scraps clamped by the hydraulic chuck are prevented from flying out to hurt people.
6 test
And starting the test equipment, performing a tensile test, collecting test data until the test sample is broken, and finishing the test.
7 finishing site
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (9)
1. The flat-pushing type self-correcting tensile test tool is characterized by comprising a clamping mechanism (10), wherein the clamping mechanism (10) comprises two symmetrically arranged clamping bodies (11) and hydraulic clamps (12) respectively connected with the clamping bodies (11), a funnel positioning groove (20) is formed in the top of a clamping space formed by the two clamping bodies (11), a notch of the funnel positioning groove (20) extends into the clamping space, one end of a sample to be tested is inserted into the funnel positioning groove (20), and two sides of the sample to be tested are respectively contacted with the clamping bodies (11); the bottom of funnel constant head tank (20) is equipped with adjustment mechanism (30) that are used for adjusting the sample position, is equipped with between the bottom of adjacent holding body (11) to be used for guaranteeing that the even positioning mechanism (40) of holding body (11) both ends atress.
2. A flat push type self correcting tensile test tool according to claim 1 wherein the hydraulic clamp (12) is provided with a connection block (13), the connection block (13) being connected to the clamping body (11) by a ball and socket.
3. The flat push type self-correcting tensile test tool according to claim 1, wherein the adjusting mechanism (30) comprises an eccentric wheel (31), and a first knob (32), the eccentric wheel (31) is disposed inside the funnel positioning groove (20), one end of the first knob (32) extends into the funnel positioning groove (20) and is connected with the eccentric wheel (31), and the first knob (32) is rotatably connected with the side wall of the funnel positioning groove (20).
4. The flat push type self-correcting tensile test tool according to claim 1, wherein the positioning mechanism (40) comprises a balance block (43), and positioning sockets (44) are correspondingly arranged on opposite sides of the bottom of the adjacent clamping bodies (11).
5. The horizontal pushing type self-correcting tensile test tool according to claim 4, wherein the positioning mechanism (40) further comprises an adjusting rod (41) and a second knob (42), a plurality of positioning sockets (44) with gradually increasing sizes or decreasing sizes are sequentially arranged on opposite sides of the bottom of the adjacent clamping body (11) from top to bottom, the adjusting rod (41) is rotatably connected with the bottom of the funnel positioning groove (20) through a bearing, the adjusting rod (41) is connected with a balance block (43), the second knob (42) is connected with the funnel positioning groove (20) through a support, one side of the support is slidably connected with the adjusting rod (41), one end of the second knob (42) penetrates through the support and is provided with a gear, and the adjusting rod (41) is correspondingly provided with a meshing rack along the length direction.
6. A flat push type self aligning tensile test tool according to claim 5 wherein said weight (43) is provided with a pointer (45) and said positioning socket (44) is provided with predetermined position marks.
7. A flat push type self-correcting tensile test tool according to any one of claims 4 to 6, wherein the two side surfaces of the balance weight (43) contacting the positioning socket (44) are respectively cambered surfaces, and the positioning socket (44) is provided with a cambered groove matched with the cambered surfaces.
8. The flat push type self aligning tensile test tool of claim 1 wherein the diameter of the top of the notch of said funnel positioning slot (20) is greater than the diameter of the test specimen.
9. A flat push type self aligning tensile test tool according to claim 1 wherein the outer side of said clamping means (10) is provided with a transparent protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122900535.2U CN216718022U (en) | 2021-11-24 | 2021-11-24 | Horizontal-pushing type self-correcting tensile test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122900535.2U CN216718022U (en) | 2021-11-24 | 2021-11-24 | Horizontal-pushing type self-correcting tensile test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216718022U true CN216718022U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122900535.2U Active CN216718022U (en) | 2021-11-24 | 2021-11-24 | Horizontal-pushing type self-correcting tensile test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216718022U (en) |
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2021
- 2021-11-24 CN CN202122900535.2U patent/CN216718022U/en active Active
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