Tensile strength detection device for aluminum plate

Abstract

The utility model discloses a tensile strength detection device for an aluminum plate, which comprises a bottom plate, and the bottom plate is provided with a fixed clamp and a movable clamp which are arranged at an interval along a first axis direction; the fixing clamp comprises a first fixed clamping jaw and a first movable clamping jaw which are oppositely arranged, and hemispherical first protrusions are arranged on the opposite first clamping faces of the first fixed clamping jaw and the first movable clamping jaw. The movable clamp comprises a second fixed clamping jaw and a second movable clamping jaw which are oppositely arranged. The opposite second clamping faces of the second fixed clamping jaw and the second movable clamping jaw are each provided with a hemispherical second protrusion. A stretching air cylinder is installed on the side, away from the fixed clamp, of the movable clamp, a cylinder barrel of the stretching air cylinder is fixedly installed on the bottom plate, and a piston rod of the stretching air cylinder is fixedly connected to the movable clamp through a tension sensor. Compared with the prior art, the sample can be clamped more stably, sliding between the sample and the clamp in the tensile test process is avoided, and the detection accuracy is guaranteed.

Description

Technical Field

[0001] The utility model relates to a tensile strength detection device for an aluminum plate. Background Art

[0002] When testing the tensile strength of aluminum plates, a rough-surfaced clamp is usually used to clamp the two ends of the sample, and then the sample is stretched to test its tensile strength. Due to the soft texture of aluminum plates, the sample will slide slightly with the clamp during the stretching process, causing fluctuations in the test data and affecting the accuracy of the test. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a tensile strength detection device for aluminum plates, which includes a bottom plate, on which a fixed fixture and a movable fixture are arranged, and the fixed fixture and the movable fixture are arranged at intervals along a first axis direction; the first axis direction extends along a horizontal direction;

[0004] The fixing clamp comprises a first fixed clamping jaw and a first movable clamping jaw which are arranged opposite to each other in the vertical direction, and a first hemispherical first protrusion is arranged on the first clamping surfaces opposite to each other of the first fixed clamping jaw and the first movable clamping jaw; when viewed in the vertical direction, the first protrusions on the two first clamping surfaces are arranged alternately;

[0005] The movable clamp comprises a second fixed clamping jaw and a second movable clamping jaw which are arranged opposite to each other in the vertical direction, and a second hemispherical second protrusion is arranged on the second clamping surfaces opposite to each other of the second fixed clamping jaw and the second movable clamping jaw; when viewed in the vertical direction, the second protrusions on the two second clamping surfaces are arranged alternately;

[0006] A stretching cylinder is installed on the side of the mobile fixture away from the fixed fixture. The cylinder barrel of the stretching cylinder is fixedly installed on the bottom plate. The piston rod of the stretching cylinder is fixedly connected to the mobile fixture via a tension sensor.

[0007] When the present application is working, one end of the aluminum plate sample is inserted between the first fixed jaw and the first movable jaw and clamped, and the other end of the sample is inserted between the second fixed jaw and the first movable jaw and clamped. Due to the staggered arrangement of the first protrusions on the two first clamping surfaces and the staggered arrangement of the second protrusions on the two second clamping surfaces, the end of the sample is deformed and concave, so that the two ends of the sample can be stably maintained on the fixed fixture and the movable fixture. The present application uses the hemispherical first and second protrusions as the bite teeth of the sample, which can form a more stable clamping of the sample, avoid sliding between the sample and the fixture during the tensile test, and ensure the accuracy of the detection.

[0008] The cam is an assembly made of a plurality of movable jaws, each of which is connected to a first plate and a second plate, and the plurality of movable jaws are connected to the plurality of movable jaws. The plurality of movable jaws are connected to the plurality of movable jaws by a plurality of springs. The plurality of movable jaws are connected to the plurality of movable jaws by a plurality of springs. The plurality of movable jaws are connected to the plurality of movable jaws by a plurality of springs. The plurality of movable jaws are connected to the plurality of movable jaws by a plurality of springs.

[0009] The movable clamp also includes a second vertical plate movably mounted on the base plate and a second top plate fixed on the top of the second vertical plate, the second fixed jaw and the second movable jaw both extend along the second axial direction, the second fixed jaw is fixedly mounted on the second vertical plate, the second movable jaw is located between the second fixed jaw and the second top plate, the second movable jaw is connected to the second top plate via a second spring, a second bolt is screwed on the second top plate, the second bolt penetrates the second top plate downward, when the second bolt is screwed downward, the second movable jaw can be pushed to move downward and press against the second fixed jaw, when the second bolt is screwed upward, the second movable jaw can move upward driven by the second spring.

[0010] In the present application, there is no connection between the first bolt and the first movable jaw, and the first movable jaw can be freely adjusted in the vertical direction by utilizing the cooperation of the first spring and the first bolt. Similarly, there is no connection between the second bolt and the second movable jaw, and the second movable jaw can be freely adjusted in the vertical direction by utilizing the cooperation of the second spring and the second bolt. This design allows the first bolt and the first movable jaw, as well as the second bolt and the second movable jaw to be freely replaced.

[0011] Specifically, the fixing fixture comprises two first vertical plates spaced apart along the second axis direction, a first limiting groove extending along the vertical direction is arranged on the inner side of the first vertical plate, and the first movable claw is movably clamped in the first limiting groove;

[0012] The movable clamp includes two second vertical plates spaced apart along the second axis direction, a second limiting groove extending in the vertical direction is arranged on the inner side of the second vertical plate, and the second movable claw is movably clamped in the second limiting groove. This design enables the first movable claw and the second movable claw to remain stable during stretching, avoiding deflection under tension.

[0013] Further, to maintain balance, observing along the vertical direction, in the direction of the second axis, the first bolt is located in the middle part of the first movable jaw in the horizontal direction, and a first spring is arranged on both sides of the first bolt; the second bolt is located in the middle part of the second movable jaw in the horizontal direction, and a second spring is arranged on both sides of the second bolt.

[0014] Furthermore, in order to prevent the mobile fixture from deflecting during the stretching process, a slide rail extending along the first axis direction is fixedly installed on the bottom plate, a sliding plate is movably installed on the slide rail, and the mobile fixture is fixedly installed on the sliding plate.

[0015] Specifically, the cross section of the slide rail is T-shaped, and a slide groove matching the slide rail is provided on the slide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 yes Figure 1 Top view of the .

[0018] Figure 3 yes Figure 1 Center AA view. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 3 In the accompanying drawings, the direction of the first axis X represents the direction of the first axis, and the direction of the second axis Y represents the direction of the second axis. Both the first axis and the second axis extend in the horizontal direction and are perpendicular to each other.

[0020] A tensile strength testing device for an aluminum plate comprises a base plate 10 on which a fixed fixture 20 and a movable fixture 30 are arranged, and the fixed fixture and the movable fixture are arranged at intervals along a first axis direction.

[0021] The fixing fixture 20 includes two first vertical plates 21 fixedly mounted on the bottom plate 10 , the two first vertical plates 21 are spaced apart along the second axis direction, and a first top plate 22 is fixedly mounted on the top of the two first vertical plates.

[0022] The first fixed jaw 23 and the first movable jaw 24 are arranged opposite to each other in the vertical direction, and both of the first fixed jaw 23 and the first movable jaw 24 extend along the second axis direction. The two ends of the first fixed jaw are respectively welded to the first vertical plate, and the first movable jaw is located between the first fixed jaw and the first top plate, that is, the first movable jaw is located on the upper side of the first fixed jaw.

[0023] A first limiting groove 211 extending in the vertical direction is provided on the inner side of the first vertical plate, and the first movable claw is movably clamped in the first limiting groove 211 .

[0024] A first spring 25 is provided between the first movable jaw and the first top plate, and the two ends of the first spring are fixedly connected to the first movable jaw and the first top plate, respectively. A first bolt hole 26 is provided in the middle portion of the first top plate in the second axial direction, and a first bolt 27 is screwed from top to bottom in the first bolt hole, and the lower end of the first bolt 27 penetrates downward through the first top plate. When the first bolt is screwed downward, the first movable jaw can be pushed to move downward and press against the first fixed jaw, and when the first bolt is screwed upward, the first movable jaw can move upward driven by the first spring.

[0025] In this embodiment, when viewed along the vertical direction, in the direction of the second axis, the first bolt is located in the middle portion of the first movable clamp in the horizontal direction, and a first spring is provided on both sides of the first bolt in the direction of the second axis.

[0026] The upper surface of the first fixed clamping jaw and the lower surface of the first movable clamping jaw are both formed as first clamping surfaces, and the first clamping surfaces are both provided with hemispherical first protrusions 241, that is, the first clamping surfaces of the first fixed clamping jaw and the first movable clamping jaw relative to each other are both provided with hemispherical first protrusions. When viewed in the vertical direction, the first protrusions on the two first clamping surfaces are arranged alternately.

[0027] Two parallel slide rails 11 are fixedly mounted on the bottom plate, and the two slide rails extend along the first axis direction. A sliding plate 13 is movably mounted on the slide rail 11, and the movable fixture 30 is fixedly mounted on the sliding plate. The cross section of the slide rail 11 is T-shaped, and a slide groove matching the slide rail is provided on the sliding plate.

[0028] The movable fixture 30 includes two second vertical plates 31 fixedly mounted on the sliding plate 13 , the two second vertical plates 31 are spaced apart along the second axis direction, and a second top plate 32 is fixedly mounted on the top of the two second vertical plates.

[0029] The second fixed jaw 33 and the second movable jaw 34 are arranged opposite to each other in the vertical direction, and the second fixed jaw 33 and the second movable jaw 34 both extend along the second axis direction. The two ends of the second fixed jaw are respectively welded to the second vertical plate, and the second movable jaw is located between the second fixed jaw and the second top plate, that is, the second movable jaw is located on the upper side of the second fixed jaw.

[0030] A second limiting groove 311 extending in the vertical direction is provided on the inner side of the second vertical plate, and the first movable claw is movably clamped in the second limiting groove 311 .

[0031] A second spring 35 is provided between the second movable jaw and the second top plate, and the two ends of the second spring are fixedly connected to the second movable jaw and the second top plate, respectively. A second bolt hole 36 is provided in the middle portion of the second top plate in the second axial direction, and a second bolt 37 is screwed from top to bottom in the second bolt hole, and the lower end of the second bolt 37 passes through the second top plate downward. When the second bolt is screwed downward, the second movable jaw can be pushed to move downward and press against the second fixed jaw, and when the second bolt is screwed upward, the second movable jaw can be moved upward driven by the second spring.

[0032] In this embodiment, when viewed along the vertical direction, in the direction of the second axis, the second bolt is located in the middle of the second movable clamp in the horizontal direction, and a second spring is provided on both sides of the second bolt in the direction of the second axis.

[0033] The upper surface of the second fixed clamping jaw and the lower surface of the second movable clamping jaw are both formed as second clamping surfaces, and a hemispherical second protrusion 341 is arranged on the second clamping surfaces, that is, a hemispherical second protrusion is arranged on the second clamping surfaces opposite to the second fixed clamping jaw and the second movable clamping jaw. When viewed in the vertical direction, the second protrusions on the two second clamping surfaces are arranged alternately;

[0034] A stretching cylinder 40 is installed on the side of the mobile fixture away from the fixed fixture, and the cylinder barrel 41 of the stretching cylinder is fixedly installed on the bottom plate 10 via a boss 12. A pulling plate 38 is welded on the side of the two second vertical plates facing the stretching cylinder, and the piston rod 42 of the stretching cylinder 40 is fixedly connected to the pulling plate 38 via a tension sensor 50. In this embodiment, the tension sensor adopts an S-type tension pressure sensor U10A.

[0035] When the present embodiment is working, one end of the sample of the aluminum plate is inserted between the first fixed jaw 23 and the first movable jaw 24, and the other end of the sample is inserted between the second fixed jaw 33 and the first movable jaw 34, and then the first bolt 27 and the second bolt 37 are screwed downward, so that the first fixed jaw 23 and the first movable jaw 24 are clamped at one end of the sample, and the second fixed jaw 33 and the second movable jaw 34 are clamped at the other end of the sample. Since the first protrusions on the two first clamping surfaces are staggered, and the second protrusions on the two second clamping surfaces are staggered, the end of the sample is deformed and concave, so that the two ends of the sample can be stably maintained on the fixed fixture 20 and the movable fixture 30. Start the stretching cylinder to complete the tensile strength test.

Claims

1. A tensile strength testing device for aluminum plates, characterized in that: It comprises a bottom plate, on which a fixed fixture and a movable fixture are arranged, and the fixed fixture and the movable fixture are arranged at intervals along a first axis direction; the first axis direction extends along a horizontal direction; The fixing clamp comprises a first fixed clamping jaw and a first movable clamping jaw which are arranged opposite to each other in the vertical direction, and a first hemispherical first protrusion is arranged on the first clamping surfaces opposite to each other of the first fixed clamping jaw and the first movable clamping jaw; when viewed in the vertical direction, the first protrusions on the two first clamping surfaces are arranged alternately; The movable clamp comprises a second fixed clamping jaw and a second movable clamping jaw which are arranged opposite to each other in the vertical direction, and a second hemispherical second protrusion is arranged on the second clamping surfaces opposite to each other of the second fixed clamping jaw and the second movable clamping jaw; when viewed in the vertical direction, the second protrusions on the two second clamping surfaces are arranged alternately; A stretching cylinder is installed on the side of the mobile fixture away from the fixed fixture. The cylinder barrel of the stretching cylinder is fixedly installed on the bottom plate. The piston rod of the stretching cylinder is fixedly connected to the mobile fixture via a tension sensor.

2. The tensile strength testing device according to claim 1, characterized in that: The fixing clamp also includes a first vertical plate fixedly mounted on the bottom plate and a first top plate fixed on the top of the first vertical plate, the first fixed jaw and the first movable jaw both extend along the second axis direction, the first fixed jaw is fixedly mounted on the first vertical plate, the first movable jaw is located between the first fixed jaw and the first top plate, the first movable jaw is connected to the first top plate via a first spring, a first bolt is screwed on the first top plate, the first bolt penetrates the first top plate downward, when the first bolt is screwed downward, the first movable jaw can be pushed to move downward and press against the first fixed jaw, when the first bolt is screwed upward, the first movable jaw can be moved upward driven by the first spring; the second axis direction extends along the horizontal direction and is perpendicular to the first axis direction; The movable clamp also includes a second vertical plate movably mounted on the base plate and a second top plate fixed on the top of the second vertical plate, the second fixed jaw and the second movable jaw both extend along the second axial direction, the second fixed jaw is fixedly mounted on the second vertical plate, the second movable jaw is located between the second fixed jaw and the second top plate, the second movable jaw is connected to the second top plate via a second spring, a second bolt is screwed on the second top plate, the second bolt penetrates the second top plate downward, when the second bolt is screwed downward, the second movable jaw can be pushed to move downward and press against the second fixed jaw, when the second bolt is screwed upward, the second movable jaw can move upward driven by the second spring.

3. The tensile strength testing device according to claim 2, characterized in that: The fixing fixture comprises two first vertical plates spaced apart in the direction of the second axis, a first limiting groove extending in the vertical direction is arranged on the inner side of the first vertical plate, and the first movable claw is movably clamped in the first limiting groove; The movable clamp comprises two second vertical plates spaced apart in the direction of the second axis. A second limiting groove extending in the vertical direction is arranged on the inner side of the second vertical plate, and the second movable claw is movably clamped in the second limiting groove.

4. The tensile strength testing device according to claim 2, characterized in that: Observed along the vertical direction, in the direction of the second axis, the first bolt is located in the middle part of the first movable jaw in the horizontal direction, and a first spring is arranged on both sides of the first bolt; the second bolt is located in the middle part of the second movable jaw in the horizontal direction, and a second spring is arranged on both sides of the second bolt.

5. The tensile strength testing device according to claim 1, characterized in that: A slide rail extending along the first axis direction is fixedly installed on the bottom plate, a slide plate is movably installed on the slide rail, and a movable fixture is fixedly installed on the slide plate.

6. The tensile strength testing device according to claim 5, characterized in that: The cross section of the slide rail is T-shaped, and a slide groove matching the slide rail is provided on the slide plate.

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