A multifunctional tensile testing device

Abstract

The invention relates to a multifunctional tensile testing device, comprising a first connecting rod, a first adjusting block, a first connecting disk, a first connecting block, a second connecting rod, a second adjusting block, a second connecting disk and a second connecting block; the first connecting rod is connected to the first adjusting block, the first adjusting block is provided with a first connecting pin, the first connecting disk is provided with a first matrix hole, the first adjusting block is connected to the first connecting disk, and the first connecting disk is connected to the first connecting block; the second connecting rod is connected to the second adjusting block, the second adjusting block is provided with a second connecting pin, the second connecting disk is provided with a second matrix hole, the second adjusting block is connected to the second connecting disk, and the second connecting disk is connected to the second connecting block; the invention can be adjusted to adapt to different angle tensile tests without replacing the corresponding connecting blocks, the adjustment is convenient, the invention can adapt to multiple angle tensile tests of cross-lap test pieces, the types of test devices are reduced, and the test effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical manufacturing and relates to a multifunctional tensile testing device. Background Art

[0002] In the field of mechanical manufacturing, welding, bonding, and mechanical connection are the most commonly used connection methods. Materials of different types and specifications need to be verified by multiple connection processes before connection to determine whether the mechanical properties of the connection process meet the specified technical requirements. In actual operation, test pieces are usually used instead of connectors for related testing. After the test piece is connected, it is necessary to clamp the test piece with a fixture and conduct subsequent tests such as stretching and shearing to verify whether the connection performance meets the specified technical requirements. At present, there are many types of tensile test devices, some of which are more complex in structure, some require frequent replacement of related parts, and have low efficiency. Some cannot adapt to various connection and test requirements, and there are many types of fixtures with single functions, which increases the production cost. Therefore, a multifunctional tensile test device is needed to reduce the number of specifications of fixtures, make the structure simple, and make replacement convenient, and ensure the accuracy of the test piece test. Summary of the invention

[0003] The purpose of the present invention is to provide a multifunctional tensile testing device to solve the problems of the existing tensile testing devices being too many in variety, single in function and too high in production cost. The multifunctional tensile testing device used in the present invention has a simple structure and reasonable design, can adapt to tensile, shear and lateral tensile tests at different angles, reduces the types of fixtures, reduces production costs, has better test effects, and meets the user's various test piece test needs.

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a multifunctional tensile testing device, which is provided with a first connecting rod and a second connecting rod, and the testing equipment is connected by the first connecting rod and the second connecting rod; further, it also includes: a first adjustment block, a first connecting disk, a first connecting block, a second adjustment block 202, a second connecting disk, and a second connecting block; the first connecting rod is connected to the first adjustment block, the first adjustment block is provided with at least one first connecting pin, the first connecting disk is provided with multiple groups of first matrix holes, the first matrix holes are distributed in an arc shape on the first connecting disk, the first adjustment block is connected to the first connecting disk through the first connecting pin and the first matrix holes, the first connecting block is provided with at least one first latch and two first clamping blocks, the first connecting disk is detachably connected to the first connecting block through the first latch, and the first connecting block and the first clamping block are used to place and fix a test piece in the cross overlap. , the first connecting block is detachably connected to the first clamping block; the second connecting rod is connected to the second adjusting block, the second adjusting block is provided with at least one second connecting pin, the second connecting disk is provided with multiple groups of second matrix holes, the second matrix holes are distributed in an arc shape on the second connecting disk, the second adjusting block is connected to the second connecting disk through the second connecting pin and the second matrix holes, the second connecting block is provided with at least one second pin and two second clamping blocks, the second connecting disk is detachably connected to the second connecting block through the second pin, the second connecting block and the second clamping block are used to place and fix another test piece in the cross overlap, and the second connecting block is detachably connected to the second clamping block; the connection position of the first adjusting block and the first connecting disk, and the connection position of the second adjusting block and the second connecting disk can be adjusted to adapt to different tests without replacing the first connecting block and / or the second connecting block.

[0005] Furthermore, a first groove is provided on the first connecting block, and a second groove is provided on the second connecting block; the width of the first groove is greater than the width of the second clamping block and the second connecting block, and the upper part of the first groove is higher than the upper part of the second clamping block; the width of the second groove is greater than the width of the first clamping block and the first connecting block, and the lower part of the second groove is lower than the lower part of the first clamping block.

[0006] Optionally, it also includes: a first adjustment pad and a second adjustment pad; the first adjustment pad is arranged between the first clamping block and the first connecting block, and the second adjustment pad is arranged between the second clamping block and the second connecting block, and the center position of the test piece can be adjusted to coincide with the center of the multifunctional tensile testing device by increasing or decreasing the number of the first adjustment pad and the second adjustment pad.

[0007] Preferably, at least one of the first connecting block, the second connecting block, the first pressing block, and the second pressing block is provided with an anti-slip groove.

[0008] Furthermore, the first latch and the second latch are in a stepped shaft shape, and openings are provided at the lower ends of the first latch and the second latch for positioning the first latch and the second latch.

[0009] The present invention relates to a multifunctional tensile testing device, which has the following beneficial effects: the present invention has reasonable design, simple structure, and is convenient to disassemble and adjust. By adjusting the connection position on the corresponding connection plate, the present invention can adapt to multiple direction tensile tests such as stretching, shearing and lateral tension at different angles of a cross-lap test piece. The connection of the test piece can be riveted, welded, bonded, and other connection methods, which reduces the types of test devices, reduces production costs, has good test effects, and meets the user's various test piece test needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0011] Figure 1 A three-dimensional structural diagram of a multifunctional tensile testing device provided in an embodiment of the present invention;

[0012] Figure 2 for Figure 1 Partial enlarged view of part A in the middle;

[0013] Figure 3 A front view of a multifunctional tensile testing device provided in an embodiment of the present invention;

[0014] Figure 4 A front view of a multifunctional tensile testing device provided by an embodiment of the present invention;

[0015] Figure 5 A schematic diagram of the cross-lap test piece structure provided by an embodiment of the present invention;

[0016] Figure 6 A schematic diagram of a first latch structure provided by an embodiment of the present invention;

[0017] Figure 7 A three-dimensional structural diagram of another state of the multifunctional tensile testing device provided in an embodiment of the present invention.

[0018] In the figure:

[0019] 101, first connecting rod; 102, first adjustment block; 103, first connecting disk; 104, first connecting block; 105, first clamping block; 106, first connecting pin; 107, first matrix hole; 108, first latch; 109, first groove; 110, first adjustment pad; 201, second connecting rod; 202, second adjustment block; 203, second connecting disk; 204, second connecting block; 205, second clamping block; 206, second connecting pin; 207, second matrix hole; 208, second latch; 209, second groove; 210, second adjustment pad. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. It should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0023] The multifunctional tensile testing device according to the embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0024] Figure 1 A three-dimensional structural diagram of a multifunctional tensile testing device provided by an embodiment of the present invention is shown; Figure 2Shows Figure 1 Partial enlarged view of part A in the middle; Figure 3 A front view of a multifunctional tensile testing device provided by an embodiment of the present invention is shown; Figure 4 FIG. 2 shows a front view of a multifunctional tensile testing device provided in an embodiment of the present invention; Figure 1 to Figure 4 As shown, the multifunctional tensile testing device provided by the embodiment of the present invention is suitable for various mechanical tests of cross-lap test pieces.

[0025] In the multifunctional tensile testing device provided in the embodiment of the present invention, a first connecting rod 101 and a second connecting rod 201 are provided, and the testing equipment is connected through the first connecting rod 101 and the second connecting rod 201; further, the multifunctional tensile testing device also includes: a first adjustment block 102, a first connecting disk 103, a first connecting block 104, a second adjustment block 202, a second connecting disk 203, and a second connecting block 204; the first connecting rod 101 is connected to the first adjustment block 102, the first adjustment block 102 is provided with at least one first connecting pin 106, and the first connecting disk 103 is provided with a plurality of groups of first matrix holes 107, the first matrix holes 107 are distributed in an arc shape on the first connection disk 103, the first adjustment block 102 is connected to the first connection disk 103 through the first connection pin 106 and the first matrix hole 107, the first connection block 104 is provided with at least one first latch 108 and two first clamping blocks 105, the first connection disk 103 is detachably connected to the first connection block 104 through the first latch 108, and a test piece in the cross overlap is placed and fixed between the first connection block 104 and the first clamping block 105, Figure 5 It shows a schematic diagram of the cross-lap test piece structure provided by an embodiment of the present invention, in which the first connecting block 104 and the first pressing block 105 are detachably connected.

[0026] Preferably, two first connecting pins 106 are provided, which are connected to the first connecting plate 103 through the first matrix holes 107, so as to prevent the first connecting pins 106 from rotating when connected to the first matrix holes 107, thereby enhancing the connection reliability. Preferably, two first latches 108 are provided, and the first latches 108 are used to connect the first connecting plate 103 and the first connecting block 104 and are adapted to the sizes of the connecting holes on the first connecting plate 103 and the first connecting block 104; the first latches 108 can facilitate the rapid disassembly of the first connecting block 104 in the multifunctional tensile test device and the replacement of the cross-lap test piece, thereby improving the work efficiency and avoiding the repeated disassembly and assembly of the first connecting rod 101 and the related test equipment; Figure 6 FIG. 2 shows a schematic diagram of a first latch structure provided by an embodiment of the present invention; Figure 6As shown, the first pin 108 is in the shape of a stepped shaft, which is thicker at the upper part and thinner at the lower part. The lower part can be inserted into the corresponding holes of the first connecting plate 103 and the first connecting block 104. An opening is provided at the lower part of the first pin 108 for placing a pin to prevent the first pin 108 from falling out of the matching hole.

[0027] In the multifunctional tensile testing device provided by the embodiment of the present invention, the second connecting rod 201 is connected to the second adjustment block 202, the second adjustment block 202 is provided with at least one second connecting pin 206, the second connecting disk 203 is provided with multiple groups of second matrix holes 207, the second matrix holes 207 are distributed in an arc shape on the second connecting disk 203, the second adjustment block 202 is connected to the second connecting disk 203 through the second connecting pin 206 and the second matrix holes 207, the second connecting block 204 is provided with at least one second latch 208 and two second clamping blocks 205, the second connecting disk 203 is detachably connected to the second connecting block 204 through the second latch 208, the second connecting block 204 and the second clamping block 205 are used to place and fix another test piece in the cross overlap, and the second connecting block 204 and the second clamping block 205 are detachably connected;

[0028] Similarly, preferably, two second connecting pins 206 are provided, which are connected to the second connecting plate 203 through the second matrix holes 207, so as to prevent the second connecting pins 206 from rotating when connected to the second matrix holes 207, thereby enhancing the connection reliability. Among them, preferably, two second pins 208 are set, and the second pins 208 are used to connect the second connecting disk 203 and the second connecting block 204 and are adapted to the size of the connecting holes on the second connecting disk 203 and the second connecting block 204; the second pins 208 can facilitate the rapid disassembly and replacement of the cross-lap test piece of the second connecting block 204 in the multifunctional tensile testing device, thereby improving work efficiency and avoiding repeated disassembly and assembly of the second connecting rod 201 and related testing equipment; the second pin 208 and the first pin 108 adopt the same design, which is in the shape of a stepped shaft, with a thicker upper part and a thinner lower part, and its lower part can be inserted into the corresponding holes of the second connecting disk 203 and the second connecting block 204, and the lower part of the second pin 208 is provided with an opening for placing a pin to prevent the second pin 208 from falling out of the matching hole.

[0029] In the multifunctional tensile testing device provided by the embodiment of the present invention, the connection positions of the first adjustment block 102 and the first connection plate 103, and the second adjustment block 202 and the second connection plate 203 can be adjusted to adapt to tensile tests at different angles without replacing the first connection block 104 and the second connection block 204, which is easy to operate, avoids repeated disassembly, and improves work efficiency. Figure 3As shown, at this time, the first adjustment block 102 is connected to the first matrix hole 107 on the leftmost side of the first connecting disk 103, and the second adjustment block 202 is connected to the second matrix hole 207 on the rightmost side of the second connecting disk 203. At this time, the first connecting rod 101 and the second connecting rod 201 are located on the same straight line in the vertical direction. The multifunctional tensile testing device in this connection state is suitable for tensile testing of cross-lap test pieces.

[0030] Figure 7 Another three-dimensional structural diagram of the multifunctional tensile testing device provided by an embodiment of the present invention is shown. Figure 7 As shown, at this time, the first adjustment block 102 is connected to the first matrix hole 107 at the bottom of the first connecting plate 103, and the second adjustment block 202 is connected to the second matrix hole 207 at the top of the second connecting plate 203. At this time, the first connecting rod 101 and the second connecting rod 201 are located on the same straight line in the horizontal direction. The multifunctional tensile testing device in this connection state is suitable for shear testing of cross-lap test pieces.

[0031] The multifunctional tensile testing device provided in the embodiment of the present invention further includes: a first adjustment pad 110 and a second adjustment pad 210; the first adjustment pad 110 is arranged between the first clamping block 105 and the first connecting block 104, and the second adjustment pad 210 is arranged between the second clamping block 205 and the second connecting block 204. By increasing or decreasing the number of the first adjustment pad 110 and the second adjustment pad 210, the position of the center of the test piece in the testing device can be adjusted so that the tension axis coincides with the center of the test piece, thereby ensuring the accuracy of the test result. Of course, if the tension axis can coincide with the center of the test piece without using the first adjustment pad 110 and the second adjustment pad 210, the first adjustment pad 110 and the second adjustment pad 210 can be discarded.

[0032] In the multifunctional tensile testing device provided by the embodiment of the present invention, a first groove 109 is provided on the first connecting block 104, and a second groove 209 is provided on the second connecting block 204. Specifically, the width of the first groove 109 is greater than the width of the second clamping block 205 and the second connecting block 204, and the upper part of the first groove 109 is higher than the upper part of the second clamping block 205; the width of the second groove 209 is greater than the width of the first clamping block 105 and the first connecting block 104, and the lower part of the second groove 209 is lower than the lower part of the first clamping block 105. The arrangement of the first groove 109 and the second groove 209 can avoid position interference during the test process, and the force change process of the test piece during the test process can be observed, so that the first connecting block 104 and the second connecting block 204 can adapt to the tensile test of cross-lapped test pieces at various angles, avoiding frequent replacement.

[0033] In the multifunctional tensile testing device provided by the embodiment of the present invention, the first matrix holes 107 are distributed in a quarter arc shape on the first connection disk 103; the second matrix holes 207 are distributed in a quarter arc shape on the second connection disk 203. Among them, the angle between adjacent matrix holes can be set to a variety of angle values, so as to realize the tensile test of cross-lap test pieces at a variety of angles in the range of 0° to 90°; preferably, the angle between adjacent matrix holes in the multifunctional tensile testing device provided by the embodiment of the present invention is set to 15°; of course, other angle values ​​can be set according to the needs of the test, such as 30°, 45°, and of course, any angle value with unequal angles between adjacent matrix holes can also be set according to the needs of the test, as long as the positions between adjacent matrix holes do not interfere with each other.

[0034] Preferably, at least one of the first connecting block 104, the second connecting block 204, the first clamping block 105, and the second clamping block 205 is provided with an anti-slip groove to increase the friction between the multifunctional tensile testing device and the test piece and prevent the test piece from slipping during the test.

[0035] In the multifunctional tensile testing device provided by the embodiment of the present invention, when in use, first select the type of tensile, shear or lateral tensile test for the cross-lap test piece, adjust the state of the multifunctional tensile testing device by changing the connection position of the corresponding adjustment block, place the cross-lap test piece on the corresponding connection block, fix and tighten it with the corresponding clamping block, fix it with bolts or screws, and adjust the center position of the test piece by placing an adjustment pad so that it coincides with the center of the multifunctional testing device, and then perform the corresponding test steps.

[0036] Compared with the prior art, the multifunctional tensile testing device provided by the embodiment of the present invention has a reasonable design, a simple structure, and is easy to disassemble and adjust. By adjusting the connection position on the corresponding connecting plate, it can adapt to multiple directional tensile tests such as stretching, shearing and lateral tension at different angles of the cross-lap test piece. The connection of the test piece can be riveted, welded, bonded, and other connection methods, thereby reducing the types of test devices, reducing production costs, and achieving good test effects, meeting users' various test piece testing needs.

[0037] There are a few points to note:

[0038] (1) Unless otherwise defined, in the embodiments of the present invention and the accompanying drawings, the same reference numerals represent the same meanings.

[0039] (2) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the general design.

[0040] (3) For the sake of clarity, in the drawings used to describe the embodiments of the present invention, some structures in the drawings may be enlarged or reduced, that is, these drawings are not drawn according to the actual scale.

[0041] (4) In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0042] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multifunctional tensile testing device, comprising a first connecting rod (101) and a second connecting rod (201), wherein the testing equipment is connected via the first connecting rod (101) and the second connecting rod (201); characterized in that: Also includes: A first adjustment block (102), a first connection disk (103), a first connection block (104), a second adjustment block (202), a second connection disk (203), and a second connection block (204); the first connection rod (101) is connected to the first adjustment block (102); the first adjustment block (102) is provided with at least one first connection pin (106); the first connection disk (103) is provided with a plurality of groups of first matrix holes (107); the first matrix holes (107) are distributed in an arc shape on the first connection disk (103); the first adjustment block (102) is connected to the first connection disk (106) through the first connection pin (106); The first matrix hole (107) is connected to the first connection plate (103); the first connection block (104) is provided with at least one first latch (108) and two first clamping blocks (105); the first connection plate (103) is detachably connected to the first connection block (104) through the first latch (108); a test piece in the cross-lap joint is placed and fixed between the first connection block (104) and the first clamping block (105); the first connection block (104) and the first clamping block (105) are detachably connected; the second connection rod (201) is connected to the first The second adjusting block (202) is connected to the second connecting plate (203), the second adjusting block (202) is provided with at least one second connecting pin (206), the second connecting plate (203) is provided with a plurality of groups of second matrix holes (207), the second matrix holes (207) are distributed in an arc shape on the second connecting plate (203), the second adjusting block (202) is connected to the second connecting plate (203) via the second connecting pin (206) and the second matrix holes (207), the second connecting block (204) is provided with at least one second latch pin (208) and two second pressing blocks (205), the second connecting plate (2 03) is detachably connected to the second connecting block (204) through the second latch (208); the second connecting block (204) and the second clamping block (205) are used to place and fix another test piece in the cross overlap; the second connecting block (204) and the second clamping block (205) are detachably connected; the connection positions of the first adjustment block (102) and the first connecting disk (103) and the second adjustment block (202) and the second connecting disk (203) can be adjusted to adapt to different tests without replacing the first connecting block (104) and / or the second connecting block (204).

2. The multifunctional tensile testing device according to claim 1, characterized in that: The first connecting block (104) is provided with a first groove (109), and the second connecting block (204) is provided with a second groove (209); the width of the first groove (109) is greater than the width of the second clamping block (205) and the second connecting block (204), and the upper part of the first groove (109) is higher than the upper part of the second clamping block (205); the width of the second groove (209) is greater than the width of the first clamping block (105) and the first connecting block (104), and the lower part of the second groove (209) is lower than the lower part of the first clamping block (105).

3. The multifunctional tensile testing device according to claim 2, characterized in that: Also includes: A first adjustment pad (110) and a second adjustment pad (210); the first adjustment pad (110) is arranged between the first pressing block (105) and the first connecting block (104), and the second adjustment pad (210) is arranged between the second pressing block (205) and the second connecting block (204); by increasing or decreasing the number of the first adjustment pad (110) and the second adjustment pad (210), the center position of the test piece can be adjusted to coincide with the center of the multifunctional tensile testing device.

4. The multifunctional tensile testing device according to any one of claims 1 to 3, characterized in that: At least one of the first connecting block (104), the second connecting block (204), the first pressing block (105), and the second pressing block (205) is provided with an anti-slip groove.

5. The multifunctional tensile testing device according to claim 1, characterized in that: The first latch (108) and the second latch (208) are in the shape of a stepped shaft, and openings are provided at the lower ends of the first latch (108) and the second latch (208) for positioning the first latch (108) and the second latch (208).

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