CN210051638U - Tension test bar gauge length and measuring device - Google Patents
Tension test bar gauge length and measuring device Download PDFInfo
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- CN210051638U CN210051638U CN201920361750.XU CN201920361750U CN210051638U CN 210051638 U CN210051638 U CN 210051638U CN 201920361750 U CN201920361750 U CN 201920361750U CN 210051638 U CN210051638 U CN 210051638U
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a tension test bar gauge length and measuring device, which comprises a clamping mechanism, a gauge length mechanism and a measuring mechanism; the clamping mechanism is provided with a V-shaped groove and a compression bolt for fixing the tensile test bar; the scale distance mechanism is arranged on one side of the clamping mechanism and comprises two scribing pins, and scale distance can be made on the surface of the tensile test bar; the measuring mechanism is arranged on the other side of the clamping mechanism, comprises a measuring block and a scale and is used for measuring the distance between the gauge length of the tensile test bar before and after the tensile test. The utility model has the advantages of being simple in structure and convenient in operation, measurement reliability is high, can realize gauge length and measuring dual work, improves and measures work efficiency and measuring accuracy.
Description
Technical Field
The utility model relates to a pulling force test bar gauge length and measuring device.
Background
The marking and measuring of the gauge length of the tensile test bar is a basic method for acquiring tensile test data. The general measuring method is to directly mark on the tensile test bar by using a marking machine or directly mark on the surface of the tensile test bar by using a caliper. After the tensile test bar is stretched, the fracture is directly compressed by hands, and the distance of the gauge length is measured by using a caliper.
The marking machine is used for marking points, and the marking machine needs to be configured independently, so that the function is single, and the cost is higher. The caliper is used for directly marking on the surface of the test bar, so that the manual operation error is large. The fracture is pressed tightly by hand to measure the length, the operation is difficult, the gap distance cannot be well ensured, and the accurate distance of the gauge length cannot be accurately measured. These various problems all affect the effective performance of the tensile test.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pulling force test bar gauge length and measuring device, simple structure, convenient operation, measurement reliability are high, can once only realize gauge length and measuring dual work, improve measurement work efficiency and measuring accuracy.
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:
a tension test bar gauge length and measuring device comprises a clamping mechanism, a gauge length mechanism and a measuring mechanism;
the clamping mechanism is used for fixing the tensile test bar;
the gauge length mechanism is arranged on one side of the clamping mechanism and can be used for making gauge length on the surface of the tensile test bar;
the measuring mechanism is arranged on the other side of the clamping mechanism and used for measuring the distance between the gauge length of the tensile test bar before the tensile test and the gauge length of the tensile test bar after the tensile test.
Furthermore, the clamping mechanism comprises a base, a baffle and a compression bolt, wherein a V-shaped groove is formed in the upper surface of the base and penetrates through two ends of the base; two ends of the base are respectively provided with two baffles, and the two ends of the V-shaped groove are sealed by the baffles; the middle of the baffle is provided with a through threaded hole, a compression bolt is arranged in the threaded hole of the baffle on one side of the baffle, and the compression bolt can move in the V-shaped groove along the axial direction of the V-shaped groove.
Furthermore, scale distance mechanism includes two reticle pins, the equal clearance fit's of two reticle pins embedding is in the locating hole of rotatory piece, the both ends of rotatory piece are provided with a roating seat respectively, and rotatory piece and roating seat are through the pin clearance fit of two coaxial arrangements, and rotatory piece can be rotatory along the pin in the middle of two roating seats, two roating seats fixed mounting are in one side of base.
Further, a spring is arranged at the bottom of the scribing pin.
Furthermore, the measuring mechanism comprises two measuring blocks and a scale, and distance marks are arranged on the scale; the two measuring blocks are arranged on the guide post in a clearance fit manner, and can move on the guide post along the axis direction; two ends of the guide column are respectively provided with a guide seat, and the two guide seats are fixedly arranged on the other side of the base; the scale is arranged below the measuring block and is fixedly arranged on the base.
As described above, the utility model discloses following beneficial effect has:
simple structure, convenient operation, measurement reliability are high, can realize gauge length and measuring dual work, improve and measure work efficiency and measuring accuracy.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is an exploded view of the gauge length mechanism 20 of the present invention.
In the figure: a clamping mechanism 10; a base 11; v-shaped grooves 11 a; a baffle plate 12; a threaded hole 12 a; a hold-down bolt 13; a gauge length mechanism 20; a rotating block 21; a rotary base 22; a pin 23; a spring 24; score pins 25; a measuring mechanism 30; a measuring block 31; a guide post 32; a scale 33; a guide seat 34; a tensile test bar 40;
Detailed Description
The drawings in the specification show the structure, ratio, size, etc. only for the purpose of matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and not for the purpose of limiting the present invention, so the present invention does not have the essential meaning in the art, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "front", "rear", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
As shown in fig. 1 and 2, a device for measuring the gauge length of a tensile test bar comprises a clamping mechanism 10, a gauge length mechanism 20 and a measuring mechanism 30;
the clamping mechanism 10 is used for fixing the tensile test bar 40;
the gauge length mechanism 20 is arranged on one side of the clamping mechanism 10, and can be used for making gauge length on the surface of the tensile test bar 40, wherein the gauge length is two parallel marks;
the measuring mechanism 30 is arranged on the other side of the clamping mechanism 10 and used for measuring the distance of the surface gauge length of the tensile test bar 40 before and after the tensile test of the tensile test bar 40.
As shown in fig. 1, the clamping mechanism 10 includes a base 11, a baffle 12, and a pressing bolt 13, wherein a V-shaped groove 11a is formed on the upper surface of the base 11, and the V-shaped groove 11a penetrates through two ends of the base 11; two ends of the base 11 are respectively provided with two baffles 12, and the two ends of the V-shaped groove 11a are sealed by the baffles 12; the middle of the baffle plate 12 is provided with a through threaded hole 12a, a compression bolt 13 is arranged in the threaded hole 12a of the baffle plate 12 on one side, and the compression bolt 13 can move in the V-shaped groove 11a along the axial direction of the V-shaped groove.
As shown in fig. 1 and 3, the distance marking mechanism 20 includes two marking pins 25, the two marking pins 25 are both inserted into the positioning holes of the rotating block 21 in a clearance fit manner, two ends of the rotating block 21 are respectively provided with a rotating seat 22, the rotating block 21 and the rotating seat 22 are in clearance fit via two coaxially arranged pins 23, and the rotating block 21 can rotate along the pins 23 in the middle of the two rotating seats 22; the two rotary bases 22 are fixedly installed at one side of the base 11.
As shown in fig. 3, in order to adapt to the tensile test bars 40 with different specifications and prevent the scribing pin 25 from being stuck with the tensile test bar 40, a spring 24 is arranged at the bottom of the scribing pin 25.
As shown in fig. 1, the measuring mechanism 30 includes two measuring blocks 31 and a scale 33, and distance marks are disposed on the scale 33; the two measuring blocks 31 are arranged on the guide post 32 in a clearance fit manner, and the two measuring blocks 31 can move on the guide post 32 along the axial direction; two ends of the guide column 32 are respectively provided with a guide seat 34, and the two guide seats 34 are fixedly arranged on the other side of the base 11; the scale 33 is disposed below the measuring block 31 and is fixedly mounted on the base 11.
In the actual working process, the following steps are referred to for operation:
the first step is as follows: and (3) putting the tensile test bar 40 into the V-shaped groove 11a of the base 11 in the clamping mechanism 10, and tightening the compression bolt 13 to push the tensile test bar 40 tightly.
The second step is that: the rotary block 21 of the gauge mechanism 20 is rotated to perform gauge marking by drawing two parallel marks on the surface of the tensile bar 40 by the scribe pin 25 of the rotary block 21.
The third step: the measuring block 31 in the measuring mechanism 30 is moved so that the two measuring blocks 31 are aligned with the two parallel marks of the gauge length, respectively, and then the distance of the gauge length is measured against the distance marks of the scale 33.
The fourth step: and (4) loosening the compression bolt 13, taking the tensile test bar 40 out of the V-shaped groove 11a, and performing a tensile test.
The fifth step: referring to the first step, the tensile bar 40 having completed the tensile test is re-placed in the V-groove 11a to be fixed.
And a sixth step: referring to the third step, the distance of the gauge length is measured again.
The seventh step: and subtracting the distance measured in the third step from the distance measured in the sixth step to obtain the elongation of the tensile test bar 40 after the tensile test.
The utility model discloses a pulling force test bar gauge length and measuring device, simple structure, convenient operation, measurement reliability are high, can realize gauge length and measuring dual work, improve measurement work efficiency and measuring accuracy.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (5)
1. The utility model provides a tensile test bar gauge length and measuring device which characterized in that: comprises a clamping mechanism, a gauge length mechanism and a measuring mechanism;
the clamping mechanism is used for fixing the tensile test bar;
the gauge length mechanism is arranged on one side of the clamping mechanism and can be used for making gauge length on the surface of the tensile test bar;
the measuring mechanism is arranged on the other side of the clamping mechanism and used for measuring the distance between the gauge length of the tensile test bar before the tensile test and the gauge length of the tensile test bar after the tensile test.
2. The tension test bar gauge length and measurement device according to claim 1, wherein: the clamping mechanism comprises a base, a baffle and a compression bolt, wherein a V-shaped groove is formed in the upper surface of the base and penetrates through two ends of the base; two ends of the base are respectively provided with two baffles, and the two ends of the V-shaped groove are sealed by the baffles; the middle of the baffle is provided with a through threaded hole, a compression bolt is arranged in the threaded hole of the baffle on one side of the baffle, and the compression bolt can move in the V-shaped groove along the axial direction of the V-shaped groove.
3. The tension test bar gauge length and measurement device according to claim 1, wherein: the scale distance mechanism comprises two scale line pins, the two scale line pins are embedded into positioning holes of the rotating block in a clearance fit manner, two ends of the rotating block are respectively provided with a rotating seat, the rotating block and the rotating seat are in clearance fit through two pins coaxially arranged, the rotating block can rotate along the pins in the middle of the two rotating seats, and the two rotating seats are fixedly installed on one side of the base.
4. The device for measuring the gauge length of the tensile test bar according to claim 3, wherein: a spring is arranged at the bottom of the scribing pin.
5. The tension test bar gauge length and measurement device according to claim 1, wherein: the measuring mechanism comprises two measuring blocks and a scale, and distance marks are arranged on the scale; the two measuring blocks are arranged on the guide post in a clearance fit manner, and can move on the guide post along the axis direction; two ends of the guide column are respectively provided with a guide seat, and the two guide seats are fixedly arranged on the other side of the base; the scale is arranged below the measuring block and is fixedly arranged on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920361750.XU CN210051638U (en) | 2019-03-21 | 2019-03-21 | Tension test bar gauge length and measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920361750.XU CN210051638U (en) | 2019-03-21 | 2019-03-21 | Tension test bar gauge length and measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210051638U true CN210051638U (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920361750.XU Active CN210051638U (en) | 2019-03-21 | 2019-03-21 | Tension test bar gauge length and measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210051638U (en) |
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2019
- 2019-03-21 CN CN201920361750.XU patent/CN210051638U/en active Active
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