Clamp and tension tester

Abstract

The utility model relates to the technical field of clamps of tension testing machines, and discloses a clamp and a tension testing machine, and the clamp comprises a clamping assembly and a pressing plate, the clamping assembly comprises a clamp body and a base plate, the base plate is used for being connected with a tensile machine body, the clamp body is fixedly connected to the base plate, a wire passing cavity is defined between the clamp body and the base plate, and a profiling groove penetrating through the upper face and the lower face of the clamp body is formed in the clamp body and comprises a first groove body and a second groove body which are sequentially arranged from bottom to top. The inner diameter of the first groove body is smaller than that of the second groove body, and the sizes of the first groove body and the second groove body are respectively matched with the plug main body and the flange; the pressing plate is detachably arranged at the top of the clamp main body, a wire passing groove is formed in the pressing plate and corresponds to the profiling groove, and the size of the wire passing groove is matched with that of the plug main body; the device can be applied to a tensile test of a connector plug made of a rubber material, and does not cause deformation of the connector plug to affect the accuracy of an experimental result.

Description

TECHNICAL FIELD

[0001] The utility model relates to tension testing machine clamp technical field more specifically, and relates to a kind of clamp and the tension testing machine comprising it. BACKGROUND

[0002] The connector plug on the new connector on the communication equipment, as shown in the accompanying drawings, the connector plug is rubber material.The minimum axial holding force of the connector plug is an important parameter to ensure its qualification;Therefore, the connector plug needs to be tested for tension to measure the minimum axial holding force of the connector plug. Figure 1

[0003] In the existing minimum axial holding force test, it is usually carried out on a tension testing machine. Specifically, a clamp is provided on the tension testing machine to clamp and fix the connector plug to be tested. Since the connector plug is made of rubber, it is easy to deform when clamped horizontally by the existing clamp, which causes the cable inserted into the slot to loosen, resulting in the cable falling off and affecting the accuracy of the test results. SUMMARY

[0004] The present application aims to provide a clamp and a tension testing machine comprising the same, which can fix the connector plug, test its minimum axial holding force, and prevent it from deforming during the test.

[0005] To achieve the above-mentioned purpose, the present application provides a clamp for testing the minimum axial holding force of a connector plug. The connector plug includes a plug body and a flange. The plug body has a slot for threading. The flange is arranged around the outer periphery of the middle part of the plug body and protrudes from the outer periphery of the plug body. The clamp includes a clamping assembly and a pressing plate.

[0006] The clamping assembly includes a clamp body and a base plate. The base plate is used to connect with the main body of the tension testing machine. The clamp body is fixedly connected to the base plate. A through-line cavity is defined between the clamp body and the base plate. The clamp body is provided with a profiling groove penetrating through its upper and lower surfaces. The profiling groove includes a first groove body and a second groove body arranged in sequence from bottom to top. The inner diameter of the first groove body is smaller than that of the second groove body. The sizes of the first groove body and the second groove body are adapted to the plug body and the flange, respectively.

[0007] The pressing plate is detachably arranged on the top of the clamp body. The pressing plate is provided with a through-line groove corresponding to the profiling groove and adapted to the plug body in size.

[0008] As a preferred technical solution, the clamp further includes a base.

[0009] ​The base comprises a bottom plate and a mounting portion provided on the bottom surface of the bottom plate for detachable connection with the tensile testing machine body, and the base plate is detachably connected to the upper surface of the bottom plate, and the mounting position of the base plate on the bottom plate can be adjusted.

[0010] As a preferred technical solution, the bottom plate is provided with a first mounting position, and the base plate is provided with a second mounting position, and the first mounting position and / or the second mounting position are provided with a plurality of mounting positions, and the base plate and the bottom plate are detachably connected through the first mounting position and the second mounting position.

[0011] As a preferred technical solution, the first mounting position is a connecting hole provided on the bottom plate, a plurality of connecting holes are provided on the bottom plate at intervals, and the second mounting position is an arc-shaped groove provided on the base plate, and the center of the arc-shaped groove coincides with the center line of the base plate.

[0012] The base plate and the base plate are detachably connected through a connecting piece, and the connecting piece is sequentially provided in the arc-shaped groove and any connecting hole.

[0013] As a preferred technical solution, the mounting portion is provided with a latch hole, and the latch hole radially penetrates the outer periphery of the mounting portion.

[0014] As a preferred technical solution, the pressing plate is screwed with the clamp body.

[0015] As a preferred technical solution, the clamp body is arched.

[0016] Another aspect of the present application also provides a tensile testing machine, comprising a tensile testing machine body and a clamp as described above, and the clamp is detachably connected with the tensile testing machine body.

[0017] The clamp in the present application fixes the connector plug by placing the connector plug in the profiling groove on the clamp body and pressing the connector plug in the profiling groove on the clamp body through the pressing plate. When the minimum axial holding force test of the connector plug is performed, the connector plug will not be squeezed in the transverse direction, which will not cause the deformation of the connector plug, thereby causing the deformation of the insertion slot and causing the cable to separate from the insertion slot, which will affect the accuracy of the test results. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in detail below in combination with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as limiting the scope of the present application. In addition, unless specifically indicated, the drawings are only intended to conceptually represent the composition or structure of the described objects and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 Structure diagram of connector plug;

[0020] Figure 2 Structure split diagram of the utility model;

[0021] Figure 3 Sectional view of the utility model;

[0022] Figure 4 Sectional view of the utility model clamp body;

[0023] Figure 5 Top view of the utility model;

[0024] 1, connector plug; 11, plug body; 12, flange; 13, insertion slot; 2, base; 21, mounting portion; 211, bolt hole; 22, connecting hole; 23, bottom plate; 3, clamping assembly; 31, clamp body; 32, profiling groove; 321, first groove body; 322, second groove body; 33, bottom disc; 331, circular arc groove; 34, wire passing cavity; 4, pressing plate; 41, wire passing groove; 5, jig; 6, cable. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0026] Please refer to Figure 1 The connector plug 1 to be detected in the present example has a plug body 11 and a flange 12, and the plug body 11 is provided with an insertion slot 13, which needs to meet the minimum axial holding force of 20N.

[0027] Please refer to Figures 2-5 The clamp provided by the embodiment of the present application comprises a clamping assembly 3 and a pressing plate 4.

[0028] The clamping assembly 3 comprises a clamp body 31 and a chassis 33, the chassis 33 is used to be connected with the tensile machine body, the clamp body 31 is fixedly connected on the chassis 33, a wire passing cavity 34 is defined between the clamp body 31 and the chassis 33, a profiling groove 32 is arranged on the clamp body 31 and penetrates the upper and lower surfaces of the clamp body 31, the profiling groove 32 comprises a first groove body 321 and a second groove body 322 arranged in sequence from bottom to top, the inner diameter of the first groove body 321 is smaller than that of the second groove body 322, and the sizes of the first groove body 321 and the second groove body 322 are respectively matched with the plug body 11 and the flange 12;

[0029] The pressing plate 4 is detachably arranged on the top of the clamp body 31, a wire passing groove 41 is arranged on the pressing plate 4, the wire passing groove 41 is arranged in correspondence with the profiling groove 32, and the size of the wire passing groove 41 is matched with the plug body 11.

[0030] When the minimum axial holding force of the connector plug is tested by using the application, the clamping assembly 3 is first installed on the tensile machine body, and only the jig 5 on the tensile machine body is shown in the drawing, that is, the clamping assembly 3 is connected with the jig 5 to realize the connection with the tensile machine body. During the test, the cable 6 is passed through the to-be-tested slot 13 of the connector plug 1, then the connector plug 1 is placed in the profiling groove 32, and the wire passing groove 41 on the pressing plate 4 is pressed on the connector plug 1 to fix the connector plug 1. At this time, one end of the cable 6 is placed in the wire passing cavity 34, the other end is connected with the tensile machine body, and the cable 6 is ensured to be in a vertical state. Next, the tensile force of the tensile machine body is set to 20N for testing. If the cable 6 is not separated from the slot 13 within 1 minute, it is proved that the minimum axial holding force of the connector plug 1 is at least 20N, which meets the design requirement. The application does not cause extrusion to the connector plug 1 during the test, so that the connector plug 1 or the slot 13 is not deformed, and the accuracy of the test result is affected.

[0031] It is worth noting that the shape of the profiling groove 32 in the application can be customized according to the shape of the product to be tested, so that it is suitable for more products.

[0032] Further, the jig further comprises a base 2; the base 2 comprises a bottom plate 23 and a mounting portion 21, the mounting portion 21 is arranged on the bottom surface of the bottom plate 23 and is used to be detachably connected with the tensile machine body, the chassis 33 is detachably connected on the upper surface of the bottom plate 23, and the mounting position of the chassis 33 on the bottom plate 23 can be adjusted.

[0033] In the embodiment, if the connector plug 1 is provided with a plurality of slots 13, the plurality of slots 13 need to be tested respectively, at this time, the position of the bottom plate 33 on the base plate 23 can be adjusted so that the center of the slot 13 to be tested is aligned with the tension machine body 5, so that the cable 6 is always kept in a vertical state, and the accuracy of the test result is ensured.

[0034] Further, the base plate 23 is provided with a first mounting position, and the bottom plate 33 is provided with a second mounting position. The first mounting position and / or the second mounting position are provided with a plurality of mounting positions. Since at least one of the first mounting position and the second mounting position is provided with a plurality of mounting positions, the bottom plate 33 and the base plate 23 are detachably connected through one of the first mounting positions and one of the second mounting positions, so that the mounting position of the bottom plate 33 can be adjusted.

[0035] Further, the first mounting position is a connecting hole 22 formed on the base plate 23, and a plurality of connecting holes 22 are arranged at intervals on the base plate 23, that is, a plurality of first mounting positions are arranged on the base plate 23. The second mounting position is an arc-shaped slot 331 formed on the bottom plate 33, and the center of the arc-shaped slot 331 coincides with the center line of the bottom plate 33. The base plate 23 and the bottom plate 33 are detachably connected through a connecting piece, and the connecting piece is sequentially arranged in the arc-shaped slot 331 and any one of the connecting holes 22. The arc-shaped second mounting position can realize that one arc-shaped slot 331 corresponds to a plurality of connecting holes 22, and the connecting holes 22 and the arc-shaped slots 331 are both provided with a plurality of mounting positions, so that the position of the bottom plate 33 on the base 2 can be adjusted, and the connection between the bottom plate 33 and the base 2 is ensured, so that the bottom plate 33 and the base 2 are not separated due to the tension during the test, and the test is affected.

[0036] Further, the mounting portion 21 is provided with a latch hole 211, and the latch hole 211 radially penetrates the outer periphery of the mounting portion 21. The mounting portion 21 and the tension machine body 5 are connected in the form of a latch, which is convenient and fast.

[0037] Further, the pressing plate 4 is screwed with the clamp body 31. The pressing plate 4 is conveniently installed by screwing, and the connector plug 1 cannot be separated from the clamp body during the test, and the connector plug 1 can be quickly removed after the test.

[0038] Further, the clamp body 31 is in an arc shape. The arc-shaped clamp body 31 is arranged so that a large wire passing cavity 34 is formed between the clamp body 31 and the bottom plate 33, a large space is provided for the bottom of the cable 6 passing through the connector plug 1, and the bottom of the cable 6 is kept vertical during the test.

[0039] The application also provides a tensile testing machine, comprising a tensile machine body and a clamp as described above, the clamp being detachably connected with the tensile machine body. Wherein, the tensile machine body is not specifically shown in the drawings, only the jig 5 of the tensile machine body is shown schematically, the tensile testing machine can fix the product of rubber material or other flexible material and perform physical and mechanical performance test, and will not cause extrusion in the transverse direction, so as to find deformation, affect the accuracy of test results.

[0040] In summary, the clamp provided by the embodiment can effectively fix the connector plug of rubber material, facilitate the tensile test, and will not cause deformation in the transverse direction, affect the test results, and is convenient, fast and simple to operate.

[0041] This specification discloses the application with reference to the drawings, and also enables those skilled in the art to implement the application, including manufacturing and using any device or system, using appropriate materials, and using any combined method. The scope of the application is defined by the claimed technical solutions, and includes other examples thought by those skilled in the art. As long as such other examples include structural elements not different from the literal language of the claimed technical solutions, or such other examples contain equivalent structural elements which are not substantially different from the literal language of the claimed technical solutions, such other examples should be considered to be within the protection scope determined by the claimed technical solutions of the application.

Claims

1. A clamp for testing the minimum axial holding force of a connector plug, the connector plug comprising a plug body and a flange, the plug body having a slot for threading a wire, the flange surrounding the outer periphery of the middle portion of the plug body and protruding beyond the outer periphery of the plug body, characterized in that, The clamp includes: a clamping assembly and a pressure plate; The clamping assembly includes a clamping body and a chassis. The chassis is used to connect to the tensile testing machine body. The clamping body is fixedly connected to the chassis. A wire-passing cavity is defined between the clamping body and the chassis. The clamping body is provided with a contouring groove that runs through its upper and lower surfaces. The contouring groove includes a first groove and a second groove arranged sequentially from bottom to top. The inner diameter of the first groove is smaller than the inner diameter of the second groove, and the dimensions of the first groove and the second groove are respectively adapted to the plug body and the flange. The pressure plate is detachably mounted on the top of the fixture body. The pressure plate has a wire-passing groove, which is corresponding to the contour groove and is sized to fit the plug body.

2. The clamp as described in claim 1, characterized in that, It also includes a base; The base includes a base plate and a mounting part. The mounting part is located on the bottom surface of the base plate and is used for detachable connection with the tensile testing machine body. The chassis is detachably connected to the upper surface of the base plate, and the mounting position of the chassis on the base plate can be adjusted.

3. The clamp as described in claim 2, characterized in that, The base plate is provided with a first mounting position, and the chassis is provided with a second mounting position. There are multiple first mounting positions and / or second mounting positions. The chassis and the base plate are detachably connected through the first mounting position and the second mounting position.

4. The clamp as described in claim 3, characterized in that, The first mounting position is a connecting hole formed on the base plate, and a plurality of connecting holes are provided at intervals on the base plate; the second mounting position is an arc groove formed on the chassis, and the center of the arc groove coincides with the center line of the chassis. The base plate and the chassis are detachably connected by a connector, which is sequentially inserted into the arc groove and any of the connecting holes.

5. The clamp as described in claim 2, characterized in that, The mounting part is provided with a pin hole, which radially penetrates the outer periphery of the mounting part.

6. The clamp as described in claim 1, characterized in that, The pressure plate is screwed to the main body of the clamp.

7. The clamp as described in claim 1, characterized in that, The main body of the clamp is arched.

8. A tensile testing machine, characterized in that, include: The tensile testing machine body and the clamp as described in any one of claims 1-7, wherein the clamp is detachably connected to the tensile testing machine body.

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