Tensile tester with high stability

Abstract

The utility model relates to the technical field of tensile testing, and discloses a tensile tester with high stability, which comprises a tester base, a frame is fixedly connected above the tester base, a clamping mechanism is arranged above the tester base, the clamping mechanism comprises an adjusting assembly and a clamp assembly, the adjusting assembly comprises an adjusting frame, and the adjusting frame is fixedly connected with the frame. The left side and the right side of the inner surface of the adjusting frame are fixedly connected with ejector blocks, a limiting column movably penetrates through the front face of the adjusting frame, the clamp assembly comprises a clamping groove, clamping plates are movably attached to the left side and the right side of the inner surface of the clamping groove, and the faces, away from the inner surface of the clamping groove, of the clamping plates are fixedly connected with movable pieces. The adjusting assembly is driven by the first screw rod to enable the clamp assembly to clamp an object needing to be subjected to a tensile test in the middle, the two clamping plates can apply equal pressure to the two sides of the object at the same time during clamping, and the effect of facilitating stable clamping is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing technology, specifically a tensile testing instrument with high stability. Background Technology

[0002] Tensile testing is a test method for determining the properties of materials under axial tensile load. Data obtained from tensile testing can be used to determine a material's elastic limit, elongation, modulus of elasticity, proportional limit, reduction of area, tensile strength, yield point, yield strength, and other tensile performance indicators.

[0003] For example, Chinese Patent Publication No. CN219830572U, entitled "A Tensile Testing Instrument," discloses a tensile testing instrument belonging to the field of tensile testing technology. This utility model includes a tensile testing machine, a clamp, and a convenient clamping mechanism. The clamp is fixedly connected inside the tensile testing machine, and the convenient clamping mechanism is disposed inside the clamp. The convenient clamping mechanism includes a drive chamber opened inside the clamp, a drive plate slidably connected inside the drive chamber, an electromagnet fixedly connected to the inner wall of the drive chamber, a rare-earth magnet fixedly connected to the side of the drive plate close to the electromagnet, and a transmission rod extending to the inner wall of the clamp fixedly connected to the side of the drive plate away from the rare-earth magnet. By setting up the convenient clamping mechanism, the clamping plate can be driven to clamp the surface of the fabric using the principle of magnetic repulsion, thus achieving convenient clamping of the fabric. Compared with the existing method of clamping using spiral jaws, this device has the advantage of conveniently clamping materials.

[0004] However, in actual use, it has the problem of not being able to hold the object stably. When it needs to clamp the object for stretching, it drives the clamping plate to clamp the surface of the fabric through the principle of magnetic repulsion. However, the magnetic force is set in two directions. When the magnetic force of one side is less than that of the other side, the clamping will be unstable. It is not convenient to apply equal pressure on both sides at the same time, and it is not convenient to hold the object stably. Therefore, a tensile tester with high stability is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a tensile testing instrument with high stability, addressing the shortcomings of the prior art.

[0006] The utility model discloses a high stability's tensile testing machine, including testing instrument base, the testing instrument base top fixedly connected with the frame, the testing instrument base top is provided with the clamping mechanism, the clamping mechanism includes adjusting assembly and clamp assembly, adjusting assembly includes the adjusting frame, the left and right sides fixedly connected with the top block of adjusting frame inner surface, the adjusting frame front movable penetration has the limiting column, the clamp assembly includes the clamping groove, the left and right sides movable adhesion of clamping groove inner surface has the clamping plate, the one side fixedly connected with the movable piece of clamping plate away from clamping groove inner surface, the movable piece with clamping groove movable penetration, the movable piece with top block movable adhesion, the frame inner surface is provided with lifting assembly, when using first the object that needs to be stretched is placed respectively between two clamping plates in the clamping groove in two groups of clamp assemblies in two ends, then through the rotation of first screw rod, the rotation of first screw rod will drive adjusting frame to move to the front, the inclined plane on the top block in adjusting frame will top to the inclined plane on movable piece, and then drive movable piece to make two clamping plates close to each other, so as to stabilize the clamping object.

[0007] Preferably, the lifting assembly includes an electric slide rail, the number of electric slide rails is two, the left and right sides of the two electric slide rails are fixedly connected with the inner surface of the frame, and a lifting seat is slidably connected between the two electric slide rails. After the two ends of the object are clamped, the lifting seat is driven to slide up and down by the electric slide rail, the distance between the two clamping mechanisms is expanded to stretch the object, and the testing instrument base is provided with a sensing device for sensing the distance between the two clamping mechanisms to read the tension value. When the object is pulled apart, the driving of the lifting seat by the electric slide rail is stopped, and the tension value is read at this time to achieve the purpose of testing the object.

[0008] Preferably, the number of clamping mechanisms is two, and the two clamping mechanisms are symmetrically arranged above and below between the lifting seat and the testing instrument base. The clamping grooves in the two clamping mechanisms are fixedly connected with the lifting seat below and the testing instrument base above, respectively. The limiting columns in the two clamping mechanisms are fixedly connected with the front of the lifting seat and the testing instrument base, respectively. The adjusting frame in the clamping mechanism below is provided with a first screw rod threaded through the front, and the first screw rod is rotationally connected with the front of the testing instrument base. The front of the two clamping mechanisms is provided with a connecting assembly.

[0009] Preferably, the connecting assembly comprises a driving rod, the driving rod is fixedly connected with the front surface of the adjusting frame below, a limiting sleeve is movably arranged on the outer surface of the driving rod, the limiting sleeve is fixedly connected with the front surface of the adjusting frame above, a resisting assembly is arranged on the back surface of the driving rod, when the first screw rod rotates to drive the adjusting frame to move towards the front surface, the adjusting frame drives the driving rod to push the limiting sleeve on the other adjusting frame towards the front surface, thereby driving the other adjusting frame to drive the top block in the other adjusting frame to push the inclined surface on the movable piece, so as to drive the movable piece to make the two clamping plates above close to each other, so as to stably clamp the other end of the object.

[0010] Preferably, the resisting assembly comprises a limiting rod, the limiting rod is fixedly connected with the front surface of the frame, a top plate is movably arranged on the outer surface of the limiting rod, a second screw rod is screwed through the front surface of the top plate, the second screw rod is rotatably connected with the front surface of the frame, the top plate is driven to move towards the front surface by rotating the second screw rod to push the back of the driving rod, so as to balance the stress of the driving rod, and the two clamping plates above can stably clamp the other end of the object, at this time, the driving rod slides in the limiting sleeve along with the lifting of the lifting seat, and the driving rod always exerts force on the two clamping plates above along with the lifting, so that the two clamping plates above can tightly clamp the object, so as to stably clamp both ends of the object for testing.

[0011] Preferably, the clamp assembly further comprises a connecting piece, the connecting piece is fixedly connected with the front surface of the movable piece, and springs are elastically connected between the connecting piece and the clamping groove.

[0012] The above technical scheme can bring the following beneficial effects:

[0013] 1. The tensile tester with high stability can centrally clamp the object needing tensile test by the first screw rod driving the adjusting assembly to drive the clamp assembly, and the two clamping plates can simultaneously exert equal pressure on both sides of the object during clamping, so that the object can be stably clamped.

[0014] 2. The tensile tester with high stability can clamp the other end of the object by the adjusting assembly of one set of clamping mechanisms driving the clamp assembly, and the other set of clamping mechanisms can clamp the other end of the object by the connecting assembly, and the stress of the connecting assembly can be balanced by the resisting assembly, so that the clamping force of the clamping mechanisms above can be prevented from being weakened due to stress deformation of the connecting assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a whole structure rear view of the utility model;

[0017] Figure 3For the utility model Figure 2 The structure amplification schematic view of A in the middle.

[0018] In the figure: 1, tester base; 2, frame; 3, clamping mechanism; 4, adjusting assembly; 401, adjusting frame; 402, top block; 403, limiting column; 5, clamp assembly; 501, clamping groove; 502, clamping plate; 503, connecting sheet; 504, spring; 505, movable piece; 6, first screw rod; 7, lifting assembly; 701, electric sliding rail; 702, lifting seat; 8, connecting assembly; 801, driving rod; 802, limiting sleeve; 9, abutting assembly; 901, limiting rod; 902, top plate; 903, second screw rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-3The utility model discloses an embodiment is: a kind of tensile testing machine of high stability, including tester base 1, tester base 1 inside is provided with inductive equipment for inductive distance between two sets of clamping mechanism 3 to read tensile value, tester base 1 top is fixedly connected with frame 2, the shape of frame 2 is door frame shape, tester base 1 top is provided with clamping mechanism 3, clamping mechanism 3 includes adjusting assembly 4 and clamp assembly 5, adjusting assembly 4 includes adjusting frame 401, adjusting frame 401 inner surface left and right sides are fixedly connected with top block 402, top block 402 is provided with inclined plane towards front, adjusting frame 401 front movable penetration is limited to column 403, clamp assembly 5 includes clamping groove 501, clamping groove 501 inner surface left and right sides movable adhesion has clamping plate 502, the side of clamping plate 502 away from clamping groove 501 inner surface is fixedly connected with movable piece 505, movable piece 505 and clamping groove 501 movable penetration, movable piece 505 and top block 402 movable adhesion, movable piece 505 is provided with rear inclined plane, the inclined plane on movable piece 505 and the inclined plane on top block 402 adhesion, frame 2 inner surface is provided with lifting assembly 7, lifting assembly 7 includes electric slide rail 701, the number of electric slide rail 701 is two, two electric slide rail 701 and frame 2 inner surface left and right sides are fixedly connected, slidingly connected with lifting seat 702 between two electric slide rail 701, and electric slide rail 701 is used to drive lifting seat 702 to slide and lift, for prior art, the number of clamping mechanism 3 is two groups, two sets of clamping mechanism 3 are respectively symmetrically arranged between lifting seat 702 and tester base 1, wherein the clamping groove 501 in two sets of clamping mechanism 3 is respectively fixedly connected with lifting seat 702 below and tester base 1 top, the limited column 403 in two sets of clamping mechanism 3 is respectively fixedly connected with lifting seat 702 and tester base 1 front, adjusting frame 401 front of the clamping mechanism 3 in below is screwed with first screw rod 6, first screw rod 6 and tester base 1 front rotation connection, two sets of clamping mechanism 3 front are provided with connecting assembly 8.

[0021] Working principle: when using, the both ends of the object to be stretched are placed between the two clamping plates 502 in the clamping groove 501 of the two clamp assemblies 5, then the first screw rod 6 is rotated, the rotation of the first screw rod 6 drives the adjusting frame 401 to move towards the front, the inclined plane on the top block 402 in the adjusting frame 401 pushes the inclined plane on the movable piece 505, and then the movable piece 505 drives the two clamping plates 502 to move close to each other, so as to stably clamp the object, after the both ends of the object are clamped, the lifting seat 702 is driven to slide and lift by the electric slide rail 701, so that the distance between the two clamping mechanisms 3 is expanded to stretch the object, the inductive equipment in the tester base 1 is used to induct the distance between the two clamping mechanisms 3 to read the tensile value, when the object is pulled off, the driving of the lifting seat 702 by the electric slide rail 701 is stopped, at this time, the tensile value is read to achieve the purpose of testing the object.

[0022] Please refer to Figures 1-3 On the basis of the above embodiment, in another embodiment of the utility model, the connecting assembly 8 includes driving rod 801, driving rod 801 shape is L-shaped, driving rod 801 with the adjustment frame 401 front fixed connection of being located below, driving rod 801 outer surface movable sleeve is equipped with limit sleeve 802, limit sleeve 802 with the adjustment frame 401 front fixed connection of being located above, driving rod 801 back is provided with the resistance component 9, resistance component 9 includes limit rod 901, limit rod 901 with frame 2 front fixed connection, limit rod 901 outer surface movable sleeve is equipped with top plate 902, top plate 902 front screw is penetrated with second screw rod 903, second screw rod 903 with frame 2 front rotation connection, clamp assembly 5 still includes connecting piece 503, connecting piece 503 with movable piece 505 front fixed connection, spring 504 is elastically connected between connecting piece 503 and clamping groove 501, spring 504 will exert a force under normal conditions and top connecting piece 503 to the direction away from clamping groove 501, for making the clamping groove 501 in the clamping plate 502 reset.

[0023] Working principle: when the rotation of first screw rod 6 will drive adjustment frame 401 to move to the front, adjustment frame 401 will drive driving rod 801, make another adjustment frame 401 on limit sleeve 802 to the front, in turn make another adjustment frame 401 drive its inside top block 402 to the inclined surface on movable piece 505, to drive movable piece 505 and make the two clamping plates 502 above each other, in order to stabilize the other end of the clamping object, at this time, by rotating second screw rod 903 drive top plate 902 to move to the front to press against the rear of driving rod 801, to balance the stress of driving rod 801, make the two clamping plates 502 above can be stable to the other end of the clamping object, at this time, with the lifting of lifting seat 702 drive rod 801 will slide in limit sleeve 802, driving rod 801 will always exert force when sliding and make the two clamping plates 502 above can also tightly clamp the object with lifting, to achieve the effect of stabilizing the two ends of the clamping object for testing.

[0024] The utility model provides a kind of high stability tensile testing machine, the method and approach of specific implementation this technical scheme are many, above-mentioned only is the preferred implementation mode of the utility model, it should be pointed out, for the ordinary skilled person in the art, without departing from the principle of the utility model, can make some improvements and refinements under the premise, these improvements and refinements also should be regarded as the protection scope of the utility model. The components not specified in the embodiment can be realized by existing technology.

Claims

1. A tensile testing instrument with high stability, comprising a testing instrument base (1), characterized in that: A frame (2) is fixedly connected above the tester base (1). A clamping mechanism (3) is provided above the tester base (1). The clamping mechanism (3) includes an adjustment component (4) and a clamping component (5). The adjustment component (4) includes an adjustment frame (401). Top blocks (402) are fixedly connected to the left and right sides of the inner surface of the adjustment frame (401). A limit post (403) is movably passed through the front of the adjustment frame (401). The clamping component (5) includes a clamping groove (501). A clamping plate (502) is movably attached to the left and right sides of the inner surface of the clamping groove (501). A movable piece (505) is fixedly connected to the side of the clamping plate (502) away from the inner surface of the clamping groove (501). The movable piece (505) movably passes through the clamping groove (501). The movable piece (505) movably attaches to the top block (402). A lifting component (7) is provided on the inner surface of the frame (2).

2. The tensile testing instrument with high stability according to claim 1, characterized in that: The lifting assembly (7) includes an electric slide rail (701), and there are two electric slide rails (701). The two electric slide rails (701) are fixedly connected to the left and right sides of the inner surface of the frame (2), and a lifting seat (702) is slidably connected between the two electric slide rails (701).

3. The tensile testing instrument with high stability according to claim 2, characterized in that: The clamping mechanism (3) consists of two sets, which are symmetrically arranged between the lifting seat (702) and the tester base (1). The clamping grooves (501) in the two sets of clamping mechanisms (3) are fixedly connected to the lower part of the lifting seat (702) and the upper part of the tester base (1), respectively. The limiting posts (403) in the two sets of clamping mechanisms (3) are fixedly connected to the front of the lifting seat (702) and the tester base (1), respectively. The adjusting frame (401) in the lower clamping mechanism (3) has a first screw (6) threaded through its front. The first screw (6) is rotatably connected to the front of the tester base (1). The two sets of clamping mechanisms (3) have a connecting component (8) on their front.

4. The tensile testing instrument with high stability according to claim 3, characterized in that: The connecting component (8) includes a drive rod (801), which is fixedly connected to the front of the adjustment frame (401) located below. A limiting sleeve (802) is movably sleeved on the outer surface of the drive rod (801), and the limiting sleeve (802) is fixedly connected to the front of the adjustment frame (401) located above. A supporting component (9) is provided on the back of the drive rod (801).

5. A tensile testing instrument with high stability according to claim 4, characterized in that: The supporting component (9) includes a limiting rod (901), which is fixedly connected to the front of the frame (2). A top plate (902) is movably sleeved on the outer surface of the limiting rod (901). A second screw (903) is threaded through the front of the top plate (902), and the second screw (903) is rotatably connected to the front of the frame (2).

6. A tensile testing instrument with high stability according to claim 5, characterized in that: The clamp assembly (5) further includes a connecting piece (503), which is fixedly connected to the front of the movable piece (505), and a spring (504) is elastically connected between the connecting piece (503) and the clamping groove (501).

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