CN218847813U

CN218847813U - Insulated wire tensile test anchor clamps

Info

Publication number: CN218847813U
Application number: CN202223391325.6U
Authority: CN
Inventors: 周日海; 王其乐; 张爱祥
Original assignee: Wuhan Nantu Electric Co ltd
Current assignee: Wuhan Nantu Electric Co ltd
Priority date: 2022-12-18
Filing date: 2022-12-18
Publication date: 2023-04-11
Anticipated expiration: 2032-12-18

Abstract

The utility model relates to an anchor clamps technical field specifically discloses an insulated wire tensile test anchor clamps, include: a clamping frame with a mounting component on the top; the clamping structure is movably connected to the inner side of the clamping frame and comprises two clamping blocks, and a first clamping groove, a second clamping groove and a third clamping groove are sequentially formed in one side, opposite to the two clamping blocks, of the two clamping blocks from top to bottom; first clamp groove, the radial cross-section's of second clamp groove and third clamp groove arc camber reduces in proper order, the camber is less, the curved degree of curvature that indicates is less, first clamp groove, second clamp groove and third clamp groove degree of curvature reduce in proper order, and then the centre gripping elasticity increases progressively in proper order, when guaranteeing stable centre gripping, can share the atress between the three clamp groove, the pulling force point increases, prevent that tensile in-process wire from being caused the damage by the insulating layer of wire by the early fracture between clamping section and the exposure section, and then can prevent that wire insulating layer and sinle silk from separating among the test procedure, improve the accuracy of test result.

Description

Insulated wire tensile test anchor clamps

Technical Field

The utility model relates to an anchor clamps technical field specifically is an insulated wire tensile test anchor clamps.

Background

The tensile testing machine clamp is an indispensable part in an electronic tensile testing machine. The sample is clamped by the clamp to apply force to the sample, and the size of the test force born by the clamp is an important index of the clamp. It determines the size of the clamp structure and the labor intensity of the clamp operation. The tensile testing machine clamp has no fixed mode on the structure, and the structure is greatly different according to different samples and testing force.

Its anchor clamps of present tensile test machine for insulated wire are two clamping pieces of simple structure mostly, extrude mutually through two clamping pieces and carry out the centre gripping to the wire fixed, this type of anchor clamps can not evenly exert pressure around the wire when carrying out the centre gripping to the wire, the pulling force point is concentrated in one department, crack in the middle of leading to being held the section very easily and exposing the section, cause the damage to the insulating layer of wire, insulating layer after the damage is being separated with the sinle silk very easily by tensile in-process, insulating layer and sinle silk after separating can lead to the test result distortion.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an insulated wire tensile test anchor clamps can prevent effectively that tensile in-process wire from being caused the damage to its insulating layer by the centre gripping section and expose the fracture between the section, improves the accuracy of test result.

The utility model discloses an insulated wire tensile test anchor clamps, include:

a clamping frame with a mounting component on the top;

the clamping structure is movably connected to the inner side of the clamping frame and comprises two clamping blocks, a first clamping groove, a second clamping groove and a third clamping groove are sequentially formed in opposite sides of the two clamping blocks from top to bottom, and a first anti-skid assembly and a second anti-skid assembly are respectively arranged in the first clamping groove and the second clamping groove;

and the two fastening components are symmetrically arranged relative to the clamping frame and comprise fastening screw rods, and one ends of the fastening screw rods are abutted with the surfaces of the clamping blocks.

As a further improvement of the present invention, the radial cross section of the first clamping groove, the second clamping groove and the third clamping groove is arc-shaped, and the arc curvature of the radial cross section of the first clamping groove, the second clamping groove and the third clamping groove is reduced in sequence.

As a further improvement, the first locating lever and the second locating lever of fixedly connected with between the inner wall of the clamping frame, two the clamp splice activity is worn to locate on the first locating lever and the second locating lever.

As a further improvement, the first anti-slip structure comprises an elastic clamping piece and a rubber gasket, the elastic clamping piece is a U-shaped frame, a clamping groove for connecting the U-shaped frame is arranged in the first clamping groove relative to the U-shaped frame, and the rubber gasket is fixedly arranged on the surface of the U-shaped frame.

As a further improvement, the second anti-skid component comprises an anti-skid ring, the second clamping groove inner wall equidistance is provided with a plurality of positioning grooves, and the anti-skid ring is fixedly connected in the positioning grooves.

As a further improvement of the utility model, the other end of the fastening screw rod is fixedly provided with a handle piece, and the surface of the handle piece is annularly provided with four operating rods.

Compared with the prior art, the beneficial effects of the utility model are as follows:

first clamp groove, the radial cross-section's of second clamp groove and third clamp groove arc camber reduces in proper order, the camber is less, the curved degree of curvature that indicates is less, first clamp groove, second clamp groove and third clamp groove degree of curvature reduce in proper order, and then the centre gripping elasticity increases progressively in proper order, when guaranteeing stable centre gripping, can share the atress between the three clamp groove, the pulling force point increases, prevent that tensile in-process wire from being caused the damage by the insulating layer of wire by the early fracture between clamping section and the exposure section, and then can prevent that wire insulating layer and sinle silk from separating among the test procedure, improve the accuracy of test result.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the front view structure of the present invention;

FIG. 3 is a schematic view of the bottom cross-section of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the clamping block of the present invention.

In the figure: 1. a clamping frame; 2. mounting the component; 3. a clamping block; 4. a first positioning rod; 5. a second positioning rod; 6. a first clamping groove; 61. an elastic clamping member; 62. a rubber gasket; 7. a second clamping groove; 71. an anti-slip ring; 8. a third clamping groove; 9. fastening a screw rod; 10. a handle member; 11. an operating lever.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-5, the utility model discloses an insulated wire tensile test anchor clamps, include:

a clamping frame 1 with a mounting component 2 on the top;

the clamping structure is movably connected to the inner side of the clamping frame 1 and comprises two clamping blocks 3, a first clamping groove 6, a second clamping groove 7 and a third clamping groove 8 are sequentially formed in one opposite side of each clamping block 3 from top to bottom, and a first anti-skid assembly and a second anti-skid assembly are respectively arranged in each of the first clamping groove 6 and the second clamping groove 7;

and two fastening components are symmetrically arranged about the clamping frame 1 and comprise fastening screw rods 9, and one ends of the fastening screw rods 9 are abutted with the surfaces of the clamping blocks 3.

Further, the radial cross section of the first clamping groove 6, the second clamping groove 7 and the third clamping groove 8 is arc-shaped, the arc curvature of the radial cross section of the first clamping groove 6, the second clamping groove 7 and the third clamping groove 8 is reduced in sequence, the curvature is smaller, the bending degree of the curve is smaller, the bending degree of the first clamping groove 6, the second clamping groove 7 and the third clamping groove 8 is reduced in sequence, the clamping tightness is sequentially increased, the stable clamping is ensured, the stress can be shared among the three clamping grooves, the tension point is increased, the damage to the insulating layer of the wire caused by early cracking of the clamping end in the stretching process is prevented, the separation of the insulating layer of the wire from the wire core in the testing process can be prevented, and the accuracy of the testing result is improved.

Further, fixedly connected with first locating lever 4 and second locating lever 5 between the 1 inner wall of centre gripping frame, two clamp splice 3 activities wear to locate on first locating lever 4 and second locating lever 5, can stabilize location clamp splice 3 through first locating lever 4 and second locating lever 5, guarantee that two clamp splice 3 press from both sides the in-process and remove along the horizontal direction all the time, can not rotate the position, avoid it to cause the friction damage to the wire surface.

Further, first anti-skidding structure includes elasticity holder 61 and rubber gasket 62, this elasticity holder 61 is U type frame, the draw-in groove that is used for connecting U type frame is offered to relative U type frame in the first clamp groove 6, rubber gasket 62 sets firmly in this U type frame surface, press close to each other along with two clamp splice 3, rubber gasket 62 on U type frame surface slowly applies pressure to the wire surface, U type frame is the elastic component, can be compressed and then reduce pressure through elastic deformation at the atress in-process, avoid causing the damage to the wire surface, rubber gasket 62 produces friction power with the wire surface contact back and between the insulating layer, prevent that the wire from deviating from.

Further, the second anti-skidding subassembly includes anti-slip ring 71, and a plurality of constant head tanks are seted up to second double-layered groove 7 inner wall equidistance, and anti-slip ring 71 fixed connection is in the constant head tank, and anti-slip ring 71 can and the insulating layer between produce the friction, and a plurality of anti-slip rings 71 restrict the wire simultaneously, prevent that the tensile in-process of wire from taking off the line influence test.

Further, fastening screw 9's the other end has set firmly handle spare 10, and this handle spare 10 surface annular is equipped with four action bars 11, twists through action bars 11 and changes handle spare 10 more convenient laborsaving, is convenient for adjust fastening screw 9, simultaneously, can carry on spacingly to clamp splice 3 through fastening

screw

9 and 3 butts of clamp splice, and then stabilizes the centre gripping to the wire.

The embodiment of the utility model provides a pair of insulated wire tensile test anchor clamps's theory of operation does:

firstly, the wire that will await measuring is vertical to be put into between two clamp splice 3, make the wire end be located the 8 inner walls of third clamp groove, then, twist through action bars 11 and change handle spare 10, handle spare 10 rotates and drives fastening screw 9 and remove towards clamp splice 3 direction this moment, can drive clamp splice 3 and remove on first locating lever 4 and second locating lever 5 after it and clamp splice 3 butt, press close to each other along with two clamp splice 3, the rubber gasket 62 on U type frame surface slowly exerts pressure to the wire surface, U type frame is compressed in the atress process, a plurality of antiskid ring 71 restrict the wire simultaneously in the second clamp groove 7, stabilize the centre gripping wire until two clamp splice 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an insulated wire tensile test anchor clamps which characterized in that includes:

a clamping frame (1) with a mounting component (2) on the top;

the clamping structure is movably connected to the inner side of the clamping frame (1) and comprises two clamping blocks (3), a first clamping groove (6), a second clamping groove (7) and a third clamping groove (8) are sequentially formed in one opposite side of each clamping block (3) from top to bottom, and a first anti-skid assembly and a second anti-skid assembly are respectively arranged in each of the first clamping groove (6) and the second clamping groove (7);

and two fastening components are symmetrically arranged about the clamping frame (1), and each fastening component comprises a fastening screw (9), and one end of each fastening screw (9) is abutted against the surface of the clamping block (3).

2. The insulated wire tension test fixture of claim 1, wherein: the radial cross sections of the first clamping groove (6), the second clamping groove (7) and the third clamping groove (8) are arc-shaped, and the arc curvatures of the radial cross sections of the first clamping groove (6), the second clamping groove (7) and the third clamping groove (8) are reduced in sequence.

3. The insulated wire tension test fixture of claim 1, wherein: and a first positioning rod (4) and a second positioning rod (5) are fixedly connected between the inner walls of the clamping frames (1), and the two clamping blocks (3) are movably arranged on the first positioning rod (4) and the second positioning rod (5) in a penetrating manner.

4. The insulated wire tension test fixture of claim 1, wherein: the first anti-slip assembly comprises an elastic clamping piece (61) and a rubber gasket (62), the elastic clamping piece (61) is a U-shaped frame, a clamping groove used for connecting the U-shaped frame is formed in the first clamping groove (6) relative to the U-shaped frame, and the rubber gasket (62) is fixedly arranged on the surface of the U-shaped frame.

5. The insulated wire tension test fixture of claim 1, wherein: the second anti-skidding assembly comprises an anti-skidding ring (71), a plurality of positioning grooves are formed in the inner wall of the second clamping groove (7) at equal intervals, and the anti-skidding ring (71) is fixedly connected into the positioning grooves.

6. The insulated wire tension test fixture of claim 1, wherein: the other end of the fastening screw rod (9) is fixedly provided with a handle piece (10), and four operating rods (11) are annularly arranged on the surface of the handle piece (10).