Bending test device

Abstract

The utility model relates to the field of bending tests, in particular to a bending test device which comprises a base and a supporting mechanism arranged on the base, and the supporting mechanism comprises a support mechanism and a reinforcing assembly which are respectively installed on the base. The support mechanism comprises a support and a supporting roller, the support comprises a supporting part and a fixing part, the supporting roller is arranged on one side of the supporting part, and the fixing part is arranged on the other side of the supporting part; the fixing part can be fixedly connected with the base; the supporting part, the fixing part and the reinforcing assembly are sequentially arranged, and the reinforcing assembly can abut against the fixing part. The device is high in strength, stable, reliable and accurate in test.

Description

Technical Field

[0001] The utility model relates to the field of bending tests, and particularly relates to a bending test device. Background Art

[0002] Aluminum alloy materials have the advantages of wide distribution, easy processing, light weight, high strength, corrosion resistance, etc., and are widely used in various industries, especially in the fields of new energy, rail transit, automotive lightweight, electronic appliances, etc. Along with the development of the industry, the processing technology of aluminum profiles is also constantly progressing, and the requirements for various aspects such as the process performance of aluminum profiles are becoming more and more strict. The metal bending test is a kind of process performance test. It qualitatively examines the ability of metal materials to withstand bending plastic deformation under specified test conditions. Through this test, the ultimate elongation ability of metal materials to bend without cracking can be qualitatively evaluated. The existing test method adopts GB / T232-2010 "Test Method for Bending of Metallic Materials". A three-roll bending device with two support rollers and a bending punch is used. The two ends of the test material are respectively placed on the two support rollers, and the bending punch moves downward from above the test material and presses on the part between the two support rollers of the test material until the test material reaches the expected bending angle or is damaged, so as to observe the changes that occur to the test material and obtain the ability of the test material to withstand bending plastic deformation.

[0003] Due to problems such as the high strength or large thickness value of the test material itself, the existing three-roll bending device may cause damage to the two support rollers during the test, or the two support rollers may shift due to insecure fastening, resulting in inaccurate tests and affecting the test results. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a bending test device with high strength, firmness and reliability, and accurate test.

[0005] To solve the above technical problem, the utility model provides a bending test device, which includes a base and a support mechanism arranged on the base. The support mechanism includes a support seat mechanism and a strengthening component respectively installed on the base.

[0006] The support seat mechanism includes a support seat and a support roller. The support seat includes a support part and a fixing part. The support roller is arranged on one side of the support part, and the fixing part is arranged on the other side of the support part. The fixing part can be fixedly connected to the base.

[0007] The support part, the fixing part and the strengthening component are arranged in sequence, and the strengthening component can be in contact with the fixing part.

[0008] As an improvement of the above solution, the number of the support mechanisms is at least two and they are symmetrically arranged; the support rollers are arranged oppositely.

[0009] As an improvement to the above solution, the fixing part is fixedly connected to the base through a support fastener;

[0010] A number of positioning holes are provided on the base, and the support fastener can be connected to different positioning holes to adjust the position of the support on the base.

[0011] As an improvement to the above solution, the fixing part is fixedly connected to the base through a number of support fasteners;

[0012] A number of rows of positioning holes are provided on the base, and each support fastener corresponds to each row of positioning holes.

[0013] As an improvement to the above solution, the support fastener includes a middle support fastener and side support fasteners, the positioning holes include middle positioning holes and side positioning holes, the middle support fastener is connected to the middle positioning hole, and the side support fastener is connected to the side positioning hole;

[0014] The side support fasteners are arranged on both sides of the middle support fastener, and the side positioning holes are arranged on both sides of the middle positioning hole.

[0015] As an improvement to the above solution, the distance between the middle support fastener and the roller is less than the distance between the side support fastener and the roller;

[0016] The distance between the middle positioning hole with the shortest distance to the roller and the roller is less than the distance between the side positioning hole with the shortest distance to the roller and the roller.

[0017] As an improvement to the above solution, the strengthening component includes a strengthening plate and a strengthening top rod, the strengthening plate is fixedly installed on the base, and the supporting part, the fixing part and the strengthening top rod are arranged in sequence;

[0018] The strengthening top rod is movably connected to the strengthening plate so that the strengthening top rod can abut against the fixing part.

[0019] As an improvement to the above solution, the strengthening top rod can move back and forth along the moving direction of the support.

[0020] As an improvement to the above solution, a guiding groove is provided on the base, and the support and the strengthening plate are both arranged in the guiding groove; the support can move back and forth along the guiding groove.

[0021] As an improvement to the above solution, the cross-sectional shape of the roller is semi-circular;

[0022] The roller is fixedly installed on the support through a roller fixing component.

[0023] Implementing the present utility model has the following beneficial effects:

[0024] The bending test device of the present utility model is provided with a support mechanism, including a support and a support roller. The support roller is arranged on the support, and the support plays a role in supporting and strengthening the support roller, preventing the support roller from being damaged by the acting force of the test material. Specifically, the support includes a support seat and a fixing part. The support roller is arranged on one side of the support part, and the fixing part is arranged on the other side of the support part. The fixing part can be fixedly connected to the base. That is, the support can be fixedly connected to the base through the fixing part, preventing the support from shifting after being stressed or tilting upward due to a large test acting force, making the test impossible or resulting in inaccurate test results. In addition, the present utility model is also provided with a strengthening component. The strengthening component abuts against the fixing part, which can further prevent the support from shifting or tilting upward after being stressed, further increasing the strength of the support, and being stable and reliable, thereby ensuring the accuracy of the test. Description of the Drawings

[0025] Figure 1 is the front view of the bending test device of the present utility model;

[0026] Figure 2 is Figure 1 the top view of

[0027] Figure 3 is Figure 2 the structural schematic diagram of the base;

[0028] Figure 4 is Figure 1 the three-dimensional view of Detailed Embodiment

[0029] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings. It is hereby declared that the upper, lower, left, right, front, rear, inner, outer and other orientation terms that appear or will appear in the text of the present utility model are only based on the drawings of the present utility model, and they do not specifically limit the present utility model.

[0030] See Figures 1-4 , the present utility model discloses a bending test device, including a base 1 and a support mechanism arranged on the base 1. The support mechanism includes a support mechanism and a strengthening component respectively installed on the base 1.

[0031] The support mechanism includes a support 2 and a support roller 3. The support includes a support part 21 and a fixing part 22. The support roller 3 is arranged on one side of the support part 21, and the fixing part 22 is arranged on the other side of the support part 21; the fixing part 22 can be fixedly connected to the base 1.

[0032] The support part 21, the fixing part 22 and the strengthening component are arranged in sequence, and the strengthening component can abut against the fixing part 22.

[0033] The bending test device of the present utility model is provided with a support mechanism, including a support and a support roller. The support roller is arranged on the support, and the support plays a role in supporting and strengthening the support roller, avoiding damage to the support roller due to the acting force of the test material. Specifically, the support includes a support seat and a fixing part. The support roller is arranged on one side of the support part, and the fixing part is arranged on the other side of the support part. The fixing part can be fixedly connected to the base. That is, the support can be fixedly connected to the base through the fixing part, preventing the support from shifting under force or tilting upward due to the large test acting force, so that the test cannot be carried out or the test result is inaccurate. In addition, the present utility model is also provided with a strengthening component. The strengthening component abuts against the fixing part, which can further prevent the support from shifting or tilting upward under force, further increasing the strength of the support, and being stable and reliable, thereby ensuring the accuracy of the test.

[0034] Specifically, the number of the support mechanisms is at least two and they are symmetrically arranged; the support rollers 3 are arranged oppositely. Both ends of the test material, such as an aluminum profile, are respectively placed on the two support rollers. The bending indenter moves from above the test material towards the test material to press the test material into a bend until the test material reaches the expected bending angle or is damaged, so as to observe the changes that occur to the test material and obtain the bending plastic deformation resistance of the test material. Therefore, the support mechanism plays a role in supporting the test material. The support mechanism must have sufficient strength to support, be able to withstand a certain pressure, and not shift, ensuring the effectiveness and accuracy of the test results.

[0035] Among them, as Figures 1-4 shown, the fixing part 22 is fixedly connected to the base 1 through the support fastener 4; a plurality of positioning holes 11 are provided on the base 1, and the support fastener 4 can be connected to different positioning holes 11 to adjust the position of the support 2 on the base 1. Preferably, the support fastener 4 is a screw, and the positioning hole 11 is a threaded hole. The support fastener is threadedly connected to the base through the positioning hole. During the test, the distance between the two supports can be adjusted according to the size and length of the test material. After adjusting the position, the support fastener is threadedly connected to the corresponding positioning hole to fix the support on the base, ensuring that the support does not shift during the test.

[0036] Preferably, the fixing part 22 is fixedly connected to the base 1 through a plurality of support fasteners 4; a plurality of rows of positioning holes 11 are provided on the base 1, and each support fastener 4 and each row of positioning holes 11 are arranged in one-to-one correspondence. A plurality of support fasteners are provided on the support. Correspondingly, a plurality of rows of positioning holes corresponding to the support fasteners are provided on the base. The cooperation of the plurality of support fasteners and the plurality of rows of positioning holes enables the support to be firmly fixed on the base, capable of withstanding a sufficiently large acting force without shifting, so as to give sufficient support force to the support roller and ensure the effectiveness and accuracy of the test. Specifically, a fixing hole is provided on the fixing part of the support, and the support fastener passes through the fixing hole and is connected to the positioning hole.

[0037] Specifically, as Figures 3-4 shown, the support fastener 4 includes a middle support fastener 41 and side support fasteners 42. The positioning holes 11 include a middle positioning hole 111 and side positioning holes 112. The middle support fastener 41 is connected to the middle positioning hole 111, and the side support fasteners 42 are connected to the side positioning holes 112. The side support fasteners 42 are arranged on both sides of the middle support fastener 41, and the side positioning holes 112 are arranged on both sides of the middle positioning hole 111. More specifically, the number of the middle support fasteners 41 is one, and the number of the side support fasteners 42 is two, that is, the number of the support fasteners 4 is at least three. The two side support fasteners 42 are respectively arranged on both sides of the fixing part 22, and the middle support fastener 41 is arranged in the middle of the fixing part 22. Correspondingly, two rows of side positioning holes 112 and one row of middle positioning holes 111 are provided on the base 1, which are correspondingly arranged with the side support fasteners 42 and the middle support fastener 41 respectively. The cooperation of the three support fasteners effectively ensures that the support does not shift and does not tilt upwards during the test.

[0038] Preferably, the distance between the middle support fastener 41 and the support roller 3 is less than the distance between the side support fastener 42 and the support roller 3. Correspondingly, the distance between the middle positioning hole 111 with the shortest distance from the support roller 3 and the support roller 3 is less than the distance between the side positioning hole 112 with the shortest distance from the support roller 3 and the support roller 3. That is, the middle support fastener is closer to the support roller than the side support fasteners on both sides, which can effectively reduce the stress generated during the test, avoid the rupture of the positioning holes, effectively ensure that the support does not shift and does not tilt upwards, and effectively protect the device and extend the service life of the device.

[0039] In addition, as Figures 1-2 shown in FIGS. 3 and 4, the strengthening assembly includes a strengthening plate 5 and a strengthening top rod 6. The strengthening plate 5 is fixedly installed on the base 1, and the supporting part 21, the fixing part 22 and the strengthening top rod 6 are arranged in sequence. The strengthening top rod 6 is movably connected to the strengthening plate 5 so that the strengthening top rod 6 can abut against the fixing part 22. Preferably, the strengthening top rod 6 is threadedly connected to the strengthening plate 5. By rotating the strengthening top rod, the strengthening top rod is close to and abuts against the fixing part, or away from the fixing part. After the support is fixed on the base through the support fastener, then rotate the strengthening top rod so that the strengthening top rod abuts against the fixing part of the support, further ensuring that the support does not shift during the test and effectively ensuring the effectiveness and accuracy of the test. Preferably, the number of the strengthening top rods 6 is at least two to ensure balanced force. Among them, the strengthening top rod 6 can move back and forth along the moving direction of the support 2.

[0040] Preferably, as Figures 2-4As shown, a guiding groove 12 is provided on the base 1, and both the support 2 and the reinforcing plate 5 are arranged in the guiding groove 12; the support 2 can move back and forth along the guiding groove 12. The setting of the guiding groove ensures that the support moves along a predetermined direction without deviation, facilitating the adjustment of the position of the support on the base. Among them, each row of the positioning holes 11 is arranged along the extending direction of the guiding groove 12, that is, the moving direction of the support 2.

[0041] Preferably, as Figure 1 , 4 shown, the supporting roller 3 is fixedly installed on the support 2 through a supporting roller fixing assembly 31. A support groove (not shown in the figure) is provided on the support 2, and part of the supporting roller is inserted into the support groove and fixedly installed on the support through the supporting roller fixing assembly.

[0042] Preferably, the cross-sectional shape of the supporting roller 3 is semi-circular. Specifically, the cross-sectional shape of the supporting roller exposed outside the support groove is semi-circular, so that the contact surface between the test material and the supporting roller during the test is an arc surface, reducing the damage to the test material and protecting the test material.

[0043] Preferably, as Figure 2 , 4 shown, a base fastener 13 is provided on the base 1, and the base 1 is fixed on testing machines of different models through the base fastener 13, with a wide range of applications.

[0044] In summary, the present utility model provides a bending test device with high strength, firmness and reliability, and accurate testing.

[0045] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A bending test device, characterized in that, It includes a base and a support mechanism provided on the base. The support mechanism includes a support seat mechanism and a strengthening component respectively installed on the base. The support seat mechanism includes a support seat and a support roller. The support seat includes a support portion and a fixing portion. The support roller is provided on one side of the support portion, and the fixing portion is provided on the other side of the support portion. The fixing portion can be fixedly connected to the base. The support portion, the fixing portion, and the strengthening component are arranged in sequence, and the strengthening component can abut against the fixing portion.

2. The bending test device according to claim 1, characterized in that, The number of the support mechanisms is at least two and they are symmetrically arranged. The support rollers are arranged oppositely.

3. The bending test device according to claim 1, characterized in that, The fixing portion is fixedly connected to the base through a support seat fastener. A number of positioning holes are provided on the base, and the support seat fastener can be connected to different positioning holes to adjust the position of the support seat on the base.

4. The bending test device according to claim 3, characterized in that, The fixing portion is fixedly connected to the base through a number of support seat fasteners. A number of rows of positioning holes are provided on the base, and each support seat fastener corresponds to each row of positioning holes.

5. The bending test device according to claim 4, wherein, The support seat fastener includes a middle support seat fastener and side support seat fasteners. The positioning holes include middle positioning holes and side positioning holes. The middle support seat fastener is connected to the middle positioning holes, and the side support seat fasteners are connected to the side positioning holes. The side support seat fasteners are provided on both sides of the middle support seat fastener, and the side positioning holes are provided on both sides of the middle positioning holes.

6. The bending test device according to claim 5, wherein, The distance between the middle support seat fastener and the support roller is less than the distance between the side support seat fastener and the support roller. The distance between the middle positioning hole with the shortest distance to the support roller and the support roller is less than the distance between the side positioning hole with the shortest distance to the support roller and the support roller.

7. The bending test device according to claim 1, characterized in that, The strengthening component includes a strengthening plate and a strengthening top rod. The strengthening plate is fixedly installed on the base, and the support portion, the fixing portion, and the strengthening top rod are arranged in sequence. The strengthening top rod is movably connected to the strengthening plate so that the strengthening top rod can abut against the fixing portion.

8. The bending test device according to claim 7, wherein, The strengthening top rod can move back and forth along the moving direction of the support seat.

9. The bending test device according to claim 7, characterized in that, A guiding groove is provided on the base. The support seat and the strengthening plate are both arranged in the guiding groove. The support seat can move back and forth along the guiding groove.

10. The bending test device according to any one of claims 1-9, characterized in that, The cross-sectional shape of the support roller is semi-circular. The support roller is fixedly installed on the support seat through a support roller fixing component.

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