Testing device applicable to stretching of FRP (Fiber Reinforce Plastic) sectional material

Abstract

The utility model provides a test device suitable for the stretching of an FRP (Fiber Reinforce Plastic) section bar, and particularly relates to the field of FRP section bar production, a chuck comprises a first fixing plate and a second fixing plate which are arranged in parallel, and the included angle between the first fixing plate and the horizontal plane and the included angle between the second fixing plate and the horizontal plane are 15-60 degrees; the first fixing plate and the second fixing plate are arranged on the base plate; a moving plate is arranged between the first fixing plate and the second fixing plate; the second fixed plate is provided with a concave surface, and the movable plate is provided with a bulge matched with the concave surface of the second fixed plate; a screw rod is further included, one end of the screw rod is rotationally connected with the moving plate, the other end of the screw rod penetrates through the first fixing plate, and the screw rod is in threaded connection with the first fixing plate; the two base plates are arranged on the base plate and located on the side portions of the first fixing plate and the second fixing plate, positioning wheels are further arranged on the base plates, and the two base plates are connected with the movable beam and the base table respectively. According to the utility model, the clamping firmness of the chuck can be improved, and the detection efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to FRP section production field, concretely relates to a kind of test device suitable for FRP section tensile. BACKGROUND

[0002] FRP is also known as fiber reinforced plastic, and the tensile strength and elongation at break of the section need to be detected in FRP section production to ensure the stability and reliability of the product. The existing test device for FRP section tensile generally includes two clamps, which clamps the two ends of the FRP section, and then moves the clamp to realize the test of the FRP section. However, the existing clamp has the drawback of unstable clamping, which affects the detection efficiency.

[0003] The patent with application number CN202121309166.3 discloses a cable material tensile detection device. The device cooperates the positioning seat, rotating groove, rotating rod, connecting plate, cover plate, torsion spring and pull handle to form a protective effect on the display panel and control knob, avoiding damage to the external display panel due to external impact. However, the clamp still has the drawback of unstable clamping.

[0004] In view of the above shortcomings, there is a need for a test device suitable for FRP section tensile, which can improve the clamping stability of the clamp and thus improve the detection efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a test device suitable for FRP section tensile, which can improve the clamping stability of the clamp and thus improve the detection efficiency.

[0006] The utility model provides the following technical scheme:

[0007] A test device suitable for FRP section tensile, comprising two clamps arranged above and below, the lower clamp is connected with the base, and the upper clamp is connected with the moving beam; the clamp comprises first and second fixed plates arranged in parallel, and the first and second fixed plates form an angle of 15-60 degrees with the horizontal plane;

[0008] It also includes a base plate, and the first and second fixed plates are arranged on the base plate; a moving plate is arranged between the first and second fixed plates; the second fixed plate is provided with a concave surface, and the moving plate is provided with a protrusion matching the concave surface of the second fixed plate;

[0009] It also includes a screw rod, one end of which is rotatably connected with the moving plate, and the other end of which penetrates through the first fixed plate and is threadedly connected with the first fixed plate.

[0010] And located in the first fixed plate and the second fixed plate side, the base plate is also provided with a positioning wheel, two base plate is connected with the moving beam, base respectively.

[0011] Preferably, located in the screw two sides, the moving plate is provided with a fixed shaft, the fixed shaft is provided with a spring; and the first fixed plate is provided with a guide hole for accommodating the spring.

[0012] Preferably, the end of the guide hole is connected with a shaft sleeve, and the end of the shaft sleeve is closed, and the end of the spring can be embedded in the shaft sleeve.

[0013] Preferably, the outer side of the shaft sleeve is threadedly connected with the inner side of the guide hole.

[0014] Preferably, the first fixed plate is provided with a threaded sleeve, the threaded sleeve is threaded through the threaded sleeve, and the threaded sleeve is threadedly connected with the threaded sleeve.

[0015] Preferably, one end of the screw is provided with a chuck, and the screw is embedded in the groove on the moving plate through the chuck.

[0016] Preferably, the other end of the screw is provided with a rotating disc convenient for hand rotation.

[0017] The beneficial effects of the utility model are:

[0018] The device can increase the holding area by being provided with a concave surface on the second fixed plate and the moving plate being provided with a convex surface matched with the concave surface of the second fixed plate, thereby facilitating the improvement of clamping firmness.

[0019] The spring can play a stable role, alleviate the shaking during clamping, and improve the stability of clamping. DETAILED DESCRIPTION

[0020] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, together with the embodiments of the utility model, to explain the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0021] Fig. 1 It is the whole schematic view of the utility model;

[0022] Fig. 2 It is the local view of the device;

[0023] Fig. 3 It is the chuck structure view;

[0024] In the drawings, the marks are: 1, base; 2, chuck; 3, first fixed plate; 4, second fixed plate; 5, moving plate; 6, screw; 7, chuck; 8, rotating disc; 9, fixed shaft; 10, spring; 11, shaft sleeve; 12, threaded sleeve; 13, positioning wheel; 14, base plate; 15, profiled material; 16, moving beam. DETAILED DESCRIPTION

[0025] As Figs. 1 to 3 A test device suitable for FRP profile stretching, comprising two clamps 22 arranged above and below, the lower clamp 2 is connected with the base, and the upper clamp 1 is connected with the moving beam 16; two base plates 14 are respectively connected with the moving beam 16 and the base 1. The moving beam 16 realizes up and down movement, and the above-mentioned related principle structure is the prior art, which will not be specifically described. The main innovation point of the device is the improvement of the clamp structure; the clamp 2 comprises a first fixed plate 3 and a second fixed plate 4 arranged in parallel, and the first fixed plate 3 and the second fixed plate 4 form an angle of 15-60 degrees with the horizontal plane, preferably 45 degrees, which can also be selected according to the actual situation; the first fixed plate 3 and the second fixed plate 4 are arranged on the base plate 14; in actual application, in order to improve the strength, the first fixed plate 3, the second fixed plate 4 and the base plate 14 can adopt an integral forming structure; in order to facilitate disassembly and assembly, the first fixed plate 3, the second fixed plate 4 and the base plate 14 can be fastened by bolts;

[0026] The first fixed plate 3 and the second fixed plate 4 are provided with a moving plate 5; the second fixed plate 4 is provided with a concave surface, and the moving plate 5 is provided with a protrusion matched with the concave surface of the second fixed plate 4; by placing the profile to be tested 15 between the moving plate 5 and the second fixed plate 4, the profile 15 is clamped by the clamping between the moving plate 5 and the second fixed plate 4; by providing a concave surface on the second fixed plate 4 and a protrusion matched with the concave surface of the second fixed plate 4 on the moving plate 5, the holding area can be increased, thereby improving the clamping firmness;

[0027] In order to realize the reciprocating movement of the moving plate 5, a screw rod 6 is also provided, one end of the screw rod 6 is rotatably connected with the moving plate 5; the rotatable connection can be realized by providing a chuck 7 at the end of the screw rod 6, the chuck 7 can be cylindrical or spherical, the screw rod 6 is embedded in the groove on the moving plate 5 through the chuck 7, thereby realizing the rotatable connection, for details, see Fig. 3 ; a threaded sleeve 12 is arranged on the first fixed plate 3, the screw rod 6 penetrates the threaded sleeve 12, and the screw rod 6 is threadedly connected with the threaded sleeve 12, which can improve the stability of the screw rod rotation. The other end of the screw rod 6 is provided with a rotating disc 8

[0028] The other end of the screw rod 6 penetrates the first fixed plate 3, and the screw rod 6 is threadedly connected with the first fixed plate 3, thereby the reciprocating movement of the moving plate 5 can be driven by rotating the screw rod 6; in order to facilitate the testing of the strip-shaped profile, a positioning wheel 13 is also arranged on the base plate 14 at the side of the first fixed plate 3 and the second fixed plate 4; after winding the strip-shaped profile around the positioning wheel 13 for one turn, the end of the strip-shaped profile is clamped by the clamp, thereby improving the clamping stability;

[0029] In order to further improve the stability and firmness of clamping, fixed shaft 9 is arranged on the moving plate 5 at both sides of the screw rod 6, and spring 10 is arranged on the fixed shaft 9; and the first fixed plate 3 is provided with a guide hole for accommodating the spring 10; the spring force of the spring 10 can play a stable role, relieve the shaking during clamping, and improve the stability of clamping.

[0030] In order to increase the length of the spring 10 and increase the spring force of the spring 10, the end of the guide hole is connected with the shaft sleeve 11, and the end of the shaft sleeve 11 is closed; the end of the spring 10 can be embedded in the shaft sleeve 11, and the specific reference is made to Fig. 3 ; and the outer side of the shaft sleeve 11 is threadedly connected with the inner side of the guide hole, so that the disassembly operation is facilitated.

[0031] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, and the technical scheme recorded in the foregoing embodiments can be modified or equivalent replaced for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A test device suitable for FRP profile stretching, comprising two clamps arranged in upper and lower positions, the lower clamp being connected with a base, and the upper clamp being connected with a moving beam; characterized in that The clamp comprises a first fixed plate and a second fixed plate arranged in parallel, and the first fixed plate and the second fixed plate form an angle of 15-60 degrees with the horizontal plane; Further comprising a base plate, the first fixed plate and the second fixed plate are arranged on the base plate; and a moving plate is arranged between the first fixed plate and the second fixed plate; a concave surface is arranged on the second fixed plate, and the moving plate is provided with a protrusion matched with the concave surface of the second fixed plate; Further comprising a screw rod, one end of the screw rod is rotatably connected with the moving plate, the other end of the screw rod penetrates through the first fixed plate, and the screw rod is threadedly connected with the first fixed plate; Further comprising positioning wheels arranged on the base plate and located on the side of the first fixed plate and the second fixed plate, and the two base plates are respectively connected with the moving beam and the base.

2. The testing device for FRP profile tensioning according to claim 1, characterized in that: Fixed shafts are arranged on the moving plate and located on both sides of the screw rod, and springs are arranged on the fixed shafts; and the first fixed plate is provided with a guide hole for accommodating the springs.

3. The testing device for the tensile test of FRP profiles according to claim 2, characterized in that: An end of the guide hole is connected with a shaft sleeve, one end of the shaft sleeve is closed, and the end of the spring can be embedded in the shaft sleeve.

4. The testing device for FRP profile tensioning according to claim 3, characterized in that: The shaft sleeve is threadedly connected with the inner side of the guide hole.

5. The testing device for stretching FRP profiles according to claim 4, characterized in that: A threaded sleeve is arranged on the first fixed plate, the screw rod penetrates through the threaded sleeve, and the screw rod is threadedly connected with the threaded sleeve.

6. The testing device for stretching FRP profiles according to claim 5, characterized in that: One end of the screw rod is provided with a chuck, and the screw rod is embedded in a groove on the moving plate through the chuck.

7. A testing device suitable for use in tensile testing of FRP profiles according to claim 6, characterized in that: The other end of the screw rod is provided with a rotating disc convenient for hand rotation.

Images