Antiskid fixed leather tension test fixture

Abstract

The utility model relates to the technical field of tension test fixtures, and discloses an anti-slip fixed leather tension test fixture, which comprises a mounting seat, a positioning assembly is arranged above the mounting seat, the positioning assembly comprises a bidirectional threaded rod, a driving motor is fixedly mounted on one side of the mounting seat, and the driving motor is connected with the bidirectional threaded rod. An output shaft of the driving motor is fixedly connected with a two-way threaded rod, the other end of the two-way threaded rod is rotationally connected with the groove wall of the sliding groove through a bearing, and the surface of the two-way threaded rod is sleeved with a sliding block in a threaded mode. According to the carbon fiber leather testing device, through the arrangement of the positioning assembly, the two sides of the carbon fiber leather can be accurately positioned by utilizing the positioning wheels under the auxiliary action of the spring by utilizing the ingenious matching of the positioning inclined block and the inclined surface of the trapezoidal block, so that the carbon fiber leather is always kept at a fixed position in the testing process; the influence on the accuracy of a test result due to position deviation is effectively avoided, and a powerful guarantee is provided for obtaining reliable tension test data.

Description

TECHNICAL FIELD

[0001] The utility model relates to tension test fixture technical field especially relates to a kind of leather tension test fixture of antiskid fixing. BACKGROUND

[0002] Leather tension test fixture of antiskid fixing is a kind of professional equipment in material testing technical field, for the mechanical property detection of leather material, and plays a key role in the production, research and application links related to leather.

[0003] Under normal circumstances, tension is evenly applied on leather, and the test result can truly reflect the tensile strength and other properties of leather. In traditional leather tension test, the design and performance of the positioning assembly have many deficiencies. The early positioning method is relatively simple, and ordinary fixed clamps are usually used to fix the leather by manually tightening screws. During use, first place the leather on the workbench, then place the clamps on both sides of the leather, and gradually close the clamps to the leather by rotating the screws until the leather is clamped tightly.

[0004] Prior art needs manual placement of leather before placing the leather, which can easily cause the position of the leather to shift. During the process of tightening the screws, the shift of the clamps will cause the tension to be unevenly distributed along the axial direction of the leather, resulting in excessive force in some areas and insufficient force in other areas, which will lead to inaccurate tension data obtained from the test. Therefore, a leather tension test fixture of antiskid fixing is proposed to solve the above problems. SUMMARY

[0005] To make up for the above shortcomings, the utility model provides a leather tension test fixture of antiskid fixing, which aims to improve the problem of inaccurate test results caused by poor positioning effect of leather during tension test in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a leather tension test fixture of antiskid fixing, comprising a mounting seat, a positioning assembly is arranged above the mounting seat, the positioning assembly comprises a bidirectional threaded rod, a drive motor is fixedly installed on one side of the mounting seat, the output shaft of the drive motor is fixedly connected with the bidirectional threaded rod, the other end of the bidirectional threaded rod is rotatably connected with the groove wall of a sliding groove through a bearing, a sliding block is threadedly sleeved on the surface of the bidirectional threaded rod, a sliding groove is formed in the top of the mounting seat, a load plate is fixedly connected to the top of the sliding block, a tensile tester is fixedly installed on the outer side of the load plate, a positioning inclined block and a trapezoidal block are arranged on the top of the load plate, respectively, and the inclined surface of the positioning inclined block is arranged in cooperation with the inclined surface of the trapezoidal block.

[0007] As a further description of the above technical solution: the upper portion of the mounting seat is provided with a fixing assembly, the fixing assembly comprises a mounting plate, the top of the mounting plate is threadedly connected with a stud, the top of the stud is fixedly connected with a knob, and the bottom end of the stud is rotatably connected with a pressing plate through a bearing.

[0008] As a further description of the above technical solution: the bottom of the trapezoidal block is fixedly connected with a connecting plate, the connecting plate is in the shape of L, a threaded hole is formed in the bottom of the connecting plate, and the connecting plate is threadedly connected with the threaded groove through bolts.

[0009] As a further description of the above technical solution: the top of the bearing plate is provided with a dovetail groove, the bottom of the positioning inclined block is fixedly connected with a limiting block, and the outer wall of the limiting block is in contact with and slidably connected with the groove wall of the dovetail groove.

[0010] As a further description of the above technical solution: the side surface of the pressing plate is in contact with the inner side of the mounting plate, and the number of the fixing assemblies is two, and the two fixing assemblies are symmetrically arranged.

[0011] As a further description of the above technical solution: the sliding block and the sliding groove are both in the shape of T, and the sliding block is in contact with and slidably connected with the groove wall of the sliding groove.

[0012] As a further description of the above technical solution: the bottom of the mounting seat is fixedly connected with supporting legs at four corners.

[0013] As a further description of the above technical solution: a spring is arranged in the dovetail groove, one end of the spring is fixedly connected with the groove wall of the dovetail groove, and the other end of the spring is fixedly connected with the side surface of the sliding block.

[0014] As a further description of the above technical solution: the side surface of the pressing plate is in contact with the inner side of the mounting plate, and the bottom of the pressing plate is provided with a corrugated groove.

[0015] As a further description of the above technical solution: the outer wall of the positioning inclined block is provided with a mounting groove, and the mounting groove is rotatably connected with a positioning wheel.

[0016] The utility model has the advantages of the following beneficial effects:

[0017] 1、In the utility model, through the setting of the positioning assembly, the positioning wheel can be used for accurate positioning of the two sides of the carbon fiber leather under the auxiliary action of the spring, the carbon fiber leather can always keep a fixed position in the test process, the accuracy of the test result is effectively avoided due to the position deviation, and reliable tensile test data is provided.

[0018] 2. The utility model discloses, through the fixed assembly set, utilize the mounting plate to the pressing plate play the limiting effect, guarantee that the pressing plate can only do linear motion in vertical direction, to realize to the carbon fiber leather even pressure tightly, the corrugated groove of the bottom of the pressing plate can obviously increase the friction between carbon fiber leather, carbon fiber leather is pressed tightly on the mounting seat firmly, effectively prevent the carbon fiber leather from slipping in the testing process, guarantee the reliability and stability of test data. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view of a kind of leather tensile test fixture of anti-slip fixed that the utility model proposes;

[0020] Figure 2 It is the partial structure schematic view of the positioning assembly of a kind of leather tensile test fixture of anti-slip fixed that the utility model proposes;

[0021] Figure 3 It is the parts schematic view of the limiting block, positioning inclined block, spring, positioning wheel of a kind of leather tensile test fixture of anti-slip fixed that the utility model proposes;

[0022] Figure 4 It is the structure schematic view of the fixed assembly of a kind of leather tensile test fixture of anti-slip fixed that the utility model proposes;

[0023] Figure 5 It is the parts schematic view of trapezoidal block, connecting plate of a kind of leather tensile test fixture of anti-slip fixed that the utility model proposes.

[0024] Legend:

[0025] 1, mounting seat;2, drive motor;3, positioning assembly;301, bearing plate;302, two-way threaded rod;303, sliding block;304, limiting block;305, positioning inclined block;306, dovetail groove;307, spring;4, tensile detector;5, fixed assembly;501, mounting plate;502, stud;503, knob;504, pressing plate;6, positioning wheel;7, trapezoidal block;8, connecting plate;9, sliding slot. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with 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 scope of the utility model.

[0027] Reference Figure 1 - Figure 3The utility model provides a kind of embodiment: a kind of leather tensile test fixture of antiskid fixed, including mounting seat 1, the bottom four corners of mounting seat 1 are respectively fixedly connected with support leg, the effect of support leg is stable support whole fixture, ensure that fixture does not shake in the testing process, guarantee the accuracy of test, the top of mounting seat 1 is provided with positioning assembly 3, positioning assembly 3 includes bidirectional screw rod 302, one side of mounting seat 1 is fixedly installed with driving motor 2, the output shaft of driving motor 2 is fixedly connected with bidirectional screw rod 302, driving motor is the rotation of bidirectional screw rod 302 Power supply, realize the drive of positioning assembly, to adjust the position 2 of positioning assembly, the other end of bidirectional screw rod 302 is rotatably connected with the groove wall of sliding slot 9 by bearing, the stability of bidirectional screw rod 302 in the rotation process can be guaranteed by the rotation mode of bearing, avoid to appear to shake or shift, the surface of bidirectional screw rod 302 is equipped with sliding block 303 with screw, by the positive and negative rotation of bidirectional screw rod 302, sliding block 303 can be driven to do linear motion on its surface, to change the position of sliding block 303, the top of mounting seat 1 is provided with sliding slot 9, sliding block 303 and sliding slot 9 are all "T" letter shape, sliding block 303 is contacted with the groove wall of sliding slot 9 and slidably connected, "T" letter shape can prevent sliding block 303 from separating from sliding slot 9 in the sliding process, guarantee that sliding block 303 can only be stably slid along the direction of sliding slot 9, the top of sliding block 303 is fixedly connected with bearing plate 301, the movement of sliding block 303 can drive bearing plate 301 synchronous movement, realize the adjustment of bearing plate 301 position, the outside of bearing plate 301 is fixedly installed with tensile detector 4, by setting tensile detector 4 model is WDS-5, can accurately measure the force value that carbon fiber leather bears under the action of tension, the top of bearing plate 301 is respectively provided with positioning inclined block 305 and trapezoidal block 7, positioning inclined block 305 and trapezoidal block 7 cooperate with each other, for realizing the positioning and clamping operation of carbon fiber leather.

[0028] Referring to Figure 2 、 Figure 3 、 Figure 5The top of the bearing plate 301 is provided with a dovetail groove 306, the bottom of the positioning inclined block 305 is fixedly connected with a limiting block 304, the outer wall of the limiting block 304 is in contact with and slidably connected with the groove wall of the dovetail groove 306, the cooperation of the dovetail groove 306 and the limiting block 304 can limit the movement direction of the positioning inclined block 305, so that it can only slide in the direction of the dovetail groove 306, thereby ensuring the stability of the movement of the positioning inclined block 305, the dovetail groove 306 is provided with a spring 307, one end of the spring 307 is fixedly connected with the groove wall of the dovetail groove 306, the other end of the spring 307 is fixedly connected with the side surface of the sliding block 303, the spring 307 can provide elastic force, and plays a buffering and resetting role when the positioning inclined block 305 moves, thereby enhancing the stability of the positioning inclined block 305 in positioning the carbon fiber leather, the bottom of the trapezoidal block 7 is fixedly connected with a connecting plate 8, the connecting plate 8 is in the shape of "L", the bottom of the connecting plate 8 is provided with a threaded hole, and the connecting plate 8 is screwedly connected with the threaded groove through bolts, so that the trapezoidal block 7 is convenient to install and disassemble, and is convenient to maintain and replace, the inclined surface of the positioning inclined block 305 is matched with the inclined surface of the trapezoidal block 7, through mutual extrusion and action of the inclined surfaces, the movement of the positioning inclined block 305 can be realized, so that the carbon fiber leather is positioned and clamped, the outer wall of the positioning inclined block 305 is provided with a mounting groove, the groove wall of the mounting groove is rotatably connected with a positioning wheel 6, the positioning wheel 6 can be in contact with and roll on the surface of the carbon fiber leather when the positioning inclined block 305 moves, so that the damage to the surface of the carbon fiber leather is reduced, and the carbon fiber leather is more accurately positioned.

[0029] With reference to Figure 1 , Figure 2 , Figure 4The upper side of the mounting base 1 is provided with a fixing assembly 5, which comprises a mounting plate 501 for supporting and mounting other components of the fixing assembly 5 and providing a mounting base for the whole fixing assembly. The top of the mounting plate 501 is threadedly connected with a stud 502. By rotating the stud 502, the position of the stud 502 on the mounting plate 501 can be changed, so as to adjust the height of the pressing plate 504. The top of the stud 502 is fixedly connected with a knob 503, which facilitates manual rotation of the stud 502 by the operator, provides better operation experience, and makes the operation more convenient and labor-saving. The bottom end of the stud 502 is rotatably connected with the pressing plate 504 through a bearing. Such a connection mode makes the pressing plate 504 not rotate with the stud 502, but only move linearly up and down under the driving of the stud 502, so as to realize the pressing and loosening operation of the carbon fiber leather. The side surface of the pressing plate 504 is in contact with the inner side of the mounting plate 501, which can limit the pressing plate 504 and ensure that the pressing plate 504 can only move linearly in the vertical direction, so as to ensure that the pressing effect on the carbon fiber leather is uniform. The bottom of the pressing plate 504 is provided with a corrugated groove, which can increase the friction between the pressing plate 504 and the carbon fiber leather, prevent the carbon fiber leather from sliding during the test, and improve the stability of the carbon fiber leather when fixed on the bearing plate 301. The side surface of the pressing plate 504 is in contact with the inner side of the mounting plate 501, which ensures the reliability of the working of the fixing assembly 5. The number of the fixing assembly 5 is two, and the two fixing assemblies 5 are symmetrically arranged. The two symmetrically arranged fixing assemblies 5 can simultaneously press the carbon fiber leather from both sides, so as to fix the carbon fiber leather on the bearing plate 301 more firmly and uniformly.

[0030] Working principle: start the driving motor 2, make the output shaft of the driving motor 2 drive the bidirectional threaded rod 302 to rotate, the driving motor 2 as a power source, provide power for the rotation of the bidirectional threaded rod 302, realize the automatic driving of the positioning assembly, utilize the bidirectional threaded rod 302 under the rotation of two sliders 303 to approach or move away from each other, utilize the screw transmission principle of the bidirectional threaded rod 302, convert the rotary motion into the linear motion of the slider 303, so as to adjust the position of the slider 303, the slider 303 drives the bearing plate 301 to approach each other, the upper positioning inclined block 305 moves with the bearing plate 301, realizes the adjustment of the position of the positioning inclined block 305, prepares for the subsequent positioning and clamping of the carbon fiber leather, the inclined surface of the positioning inclined block 305 is extruded by the inclined surface of the trapezoidal block 7, so as to drive the two positioning inclined blocks 305 to move away from each other, utilize the interaction of the inclined surfaces of the two, realize the movement of the positioning inclined block 305, so as to change the distance between the positioning inclined blocks 305, to adapt to carbon fiber leather of different sizes, the bottom of the positioning inclined block 305 slides in the dovetail groove 306 through the limiting block 304, utilize the limiting block 304 to stretch the spring 307, the limiting block 304 slides in the dovetail groove 306, ensure the accuracy of the movement direction of the positioning inclined block 305, at the same time, the spring 307 stores elastic potential energy, so as to improve the stability of the positioning inclined block 305 in the movement process, the elastic potential energy of the spring 307 can play a buffering and stabilizing role when the positioning inclined block 305 moves, ensure the smooth movement of the positioning inclined block 305, until the gap for placing the carbon fiber leather is reserved between the two positioning inclined blocks 305, provide space for placing the carbon fiber leather, then place the carbon fiber leather between the two positioning inclined blocks 305, and then place the leather on the top of the bearing plate 301, complete the preparation work of placing the carbon fiber leather, then make the driving motor 2 reverse operation, utilize the rotation of the bidirectional threaded rod 302 to drive the two sliders 303 to move away from each other, the positioning inclined block 305 approaches each other under the transverse elastic potential energy of the spring 307, the spring 307 releases the elastic potential energy, push the positioning inclined block 305 to move in the direction of the carbon fiber leather, realize the clamping of the carbon fiber leather, utilize the positioning wheel 6 to realize the positioning of the two sides of the carbon fiber leather, the positioning wheel 6 contacts with the surface of the leather, accurately position the carbon fiber leather during the clamping process, at the same time, reduce the damage to the surface of the carbon fiber leather, stop the operation of the driving motor 2 after positioning.

[0031] When clamping, only need to rotate the knob 503, make the knob 503 drive the stud 52 rotate, the operator passes through rotating the knob 503, utilizes the stud 502 under rotation to move downward at the top of the mounting plate 501, converts the rotary motion into linear motion, realizes the adjustment of the height of the pressing plate 504, the pressing plate 504 then follows the stud 502 and moves downward, utilizes the inside of the mounting plate 501 to limit the pressing plate 504, makes the pressing plate 504 slide downward at the inside of the mounting plate 501, guarantees the vertical downward movement of the pressing plate 504, uniformly presses the carbon fiber leather, until the bottom of the pressing plate 504 tightly abuts the carbon fiber leather at the top of the mounting base 1, completes the fixing operation of the carbon fiber leather, ensures that the leather does not move in the testing process, the corrugated groove opened at the bottom of the pressing plate 504 can improve the stability when the carbon fiber leather is fixed on the bearing plate 301, the corrugated groove increases the friction, prevents the carbon fiber leather from sliding in the testing process, guarantees the accuracy of the test result, after the positioning inclined block 305 positions the carbon fiber leather, the slider 303 still has a moving stroke on the bidirectional screw rod 302, is used for stretching the carbon fiber leather, finally opens the driving motor 2, makes the two sliders 303 continue to move away from each other, and then pulls the two sides of the carbon fiber leather, the tension generated by the carbon fiber leather is displayed through the tension detector 4.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A non-slip, fixed leather tensile strength testing fixture, comprising a mounting base (1), characterized in that: A positioning component (3) is provided above the mounting base (1). The positioning component (3) includes a bidirectional threaded rod (302). A drive motor (2) is fixedly installed on one side of the mounting base (1). The output shaft of the drive motor (2) is fixedly connected to the bidirectional threaded rod (302). The other end of the bidirectional threaded rod (302) is rotatably connected to the groove wall of the slide groove (9) through a bearing. A slider (303) is threaded on the surface of the bidirectional threaded rod (302). A slide groove (9) is opened on the top of the mounting base (1). A bearing plate (301) is fixedly connected to the top of the slider (303). A tensile tester (4) is fixedly installed on the outside of the bearing plate (301). A positioning inclined block (305) and a trapezoidal block (7) are respectively provided on the top of the bearing plate (301). The inclined surface of the positioning inclined block (305) and the inclined surface of the trapezoidal block (7) are configured to cooperate.

2. The anti-slip fixing leather tensile strength test fixture according to claim 1, characterized in that: A fixing component (5) is provided above the mounting base (1). The fixing component (5) includes a mounting plate (501). A stud (502) is threadedly connected to the top of the mounting plate (501). A knob (503) is fixedly connected to the top of the stud (502). A pressure plate (504) is rotatably connected to the bottom of the stud (502) through a bearing.

3. The anti-slip fixing leather tensile strength test fixture according to claim 1, characterized in that: The bottom of the trapezoidal block (7) is fixedly connected to a connecting plate (8), which is L-shaped. The bottom of the connecting plate (8) is provided with a threaded hole, and the connecting plate (8) is threadedly connected to the threaded groove by bolts.

4. The anti-slip fixing leather tensile strength test fixture according to claim 1, characterized in that: The top of the bearing plate (301) is provided with a dovetail groove (306), and the bottom of the positioning inclined block (305) is fixedly connected to a limiting block (304). The outer wall of the limiting block (304) is in contact with and slidably connected to the groove wall of the dovetail groove (306).

5. A non-slip, fixed leather tensile strength testing fixture according to claim 2, characterized in that: The side of the pressure plate (504) contacts the inner side of the mounting plate (501), and there are two fixing components (5), which are symmetrically arranged.

6. The anti-slip fixing leather tensile strength test fixture according to claim 1, characterized in that: Both the slider (303) and the groove (9) are T-shaped, and the slider (303) is in contact with and slidably connected to the groove wall of the groove (9).

7. The anti-slip fixing leather tensile strength test fixture according to claim 1, characterized in that: Support legs are fixedly connected to the four corners of the bottom of the mounting base (1).

8. A non-slip, fixed leather tensile strength testing fixture according to claim 4, characterized in that: A spring (307) is provided inside the dovetail groove (306). One end of the spring (307) is fixedly connected to the groove wall of the dovetail groove (306), and the other end of the spring (307) is fixedly connected to the side of the slider (303).

9. A non-slip, fixed leather tensile strength testing fixture according to claim 2, characterized in that: The side of the pressure plate (504) contacts the inner side of the mounting plate (501), and a corrugated groove is provided at the bottom of the pressure plate (504).

10. A non-slip, fixed leather tensile strength testing fixture according to claim 1, characterized in that: The outer wall of the positioning wedge (305) is provided with an installation groove, and the groove wall is rotatably connected to a positioning wheel (6).

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