CN217277372U

CN217277372U - Tensile endotheca anchor clamps of pole sample

Info

Publication number: CN217277372U
Application number: CN202220332720.8U
Authority: CN
Inventors: 夏晓平; 吴浩鸿; 罗亮
Original assignee: Lysteel Co Ltd
Current assignee: Lysteel Co Ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-08-23
Anticipated expiration: 2032-02-15

Abstract

The utility model relates to the technical field of clamps, specifically disclose tensile endotheca anchor clamps of pole sample, it includes the sleeve, the sleeve symmetry is provided with two, be sleeve and lower sleeve respectively, the one end that the sleeve is close to each other is coaxial has seted up circularly uncovered, T type breach has been seted up on the telescopic outer disc, T type breach and sleeve, uncovered lining up, pole sample nose section can follow T type breach card and go into to the sleeve in, the parallel section of pole sample will pass T type breach and arrange in uncovered in, tensile testing machine will stimulate the sleeve and keep away from the motion each other with lower sleeve, accomplish the tensile detection of pole sample. Because the sample has the up-and-down moving space in the sleeve when the stretching starts, the utility model can not cause the bending deformation of the parallel section of the sample, thereby avoiding the distortion of the stretching detection result and improving the detection accuracy; meanwhile, threaded connection is abandoned, the round bar sample does not need to be subjected to threading machining, the damage of the inner thread of the sleeve cannot be caused, the round bar sample is convenient to take out after being pulled off, and the detection efficiency is high.

Description

Tensile endotheca anchor clamps of pole sample

Technical Field

The utility model relates to an anchor clamps technical field, concretely relates to tensile endotheca anchor clamps of pole sample.

Background

The plate products generally adopt a rectangular sample with a head to carry out tensile test, but part of customers and part of products require to provide a tensile test result of a round bar sample. The requirement of the upper and lower clamps of the existing tensile testing machine on the length of the round bar sample is at least 300mm, and when the plate is processed into a longer round bar sample, the plate flatness is insufficient, the swing amplitude during turning is large, the requirement of diameter tolerance in a longer parallel length cannot be guaranteed, and the accuracy of detection data is influenced. Then, the installation detection is performed by adopting a method of performing sleeve threaded connection on a short sample (the sample length is about 160mm) with threads threaded at two ends, as shown in fig. 5 and 6 in the attached drawings of the specification, the installation connection of the round bar sample is realized by utilizing the threaded connection of the upper sleeve and the lower sleeve, and then the upper sleeve and the lower sleeve are installed on a tensile testing machine, so that the tensile test is performed on the round bar sample.

However, although the method of screw connection shortens the working length of the sample, it still has the following problems and disadvantages: firstly: the sleeve and the two ends of the sample are connected to form a whole, and after the upper clamping part and the lower clamping part of the testing machine are clamped tightly, the parallel section with the smaller diameter can generate bending deformation under the action of the gravity of an upper cross beam of the testing machine, so that the slope of the elastic section of a tensile curve is influenced, and the detection result is distorted; secondly, the method comprises the following steps: the two ends are subjected to wire turning, the processing amount is large, the processing time is long, and the requirement on the wire distance is accurate; thirdly, the method comprises the following steps: the round bar sample with higher strength easily damages the inner wire of the sleeve, so that the sample after being pulled off can not be taken out, the inner wire is broken sometimes, and the service life of the sleeve is shorter; fourthly: the installation of the sample is inconvenient, the time consumption is long, and the working efficiency is influenced.

Based on the defect of tensile detection of the round bar sample by the threaded connection method, the applicant purposefully provides the tensile inner sleeve clamp for the round bar sample, which has the advantages of ingenious structure, convenience in mounting and dismounting and high detection accuracy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure is ingenious, the installation is dismantled conveniently, and detects the tensile endotheca anchor clamps of pole sample that the accuracy is high, solves following technical problem:

(1) the sleeve and the two ends of the round bar sample are connected to form a whole, and after the upper clamping part and the lower clamping part of the testing machine are clamped, the parallel section with the smaller diameter can generate bending deformation under the action of the gravity of the upper cross beam of the testing machine, so that the slope of the elastic section of a tensile curve is influenced, and the detection result is distorted;

(2) the two ends are subjected to wire turning, the processing amount is large, the processing time is long, and the requirement on the wire distance is accurate;

(3) the round bar sample with higher strength is easy to damage the inner wire of the sleeve, so that the sample after being pulled off can not be taken out, the inner wire can be broken sometimes, and the service life of the sleeve is shorter;

(4) the installation sample is inconvenient, and is consuming time long, influences work efficiency.

The purpose of the utility model can be realized by the following technical proposal:

tensile endotheca anchor clamps of pole sample, it includes the sleeve, and the sleeve symmetry is provided with two, is last sleeve and lower sleeve respectively, and the one end that the sleeve is close to each other is coaxial to have seted up circular uncovered, and open bore is greater than the parallel section diameter of pole sample and is less than the protruding head section diameter of pole sample, has seted up T type breach on the telescopic excircle face, and T type breach and sleeve, uncovered link up, and pole sample protruding head section can be followed T type breach card and gone into to the sleeve in.

As a further aspect of the present invention: the T-shaped notch comprises a first through groove and a second through groove which are communicated with each other, the first through groove is communicated with the inside of the sleeve, the second through groove is communicated with the opening, and the second through groove is communicated with a port of the sleeve.

As a further aspect of the present invention: the width of the first through groove is larger than the diameter of the round bar sample convex head section, and the length of the first through groove is larger than that of the round bar sample convex head section.

As a further aspect of the present invention: the width of the second through groove is larger than the diameter of the parallel section of the round bar sample.

As a further aspect of the present invention: the aperture of the opening is smaller than the diameter of the inner circular surface of the sleeve, a clamping table is formed at the joint of the opening and the sleeve, and the clamping table is a circular curved surface matched with the connecting circular arc.

As a further aspect of the present invention: the telescopic other end is provided with by clamping part, receives clamping part including the receiving grip block of rectangle, receives the grip block to be close to telescopic one end fixed and is provided with the connecting block, and the connecting block can be dismantled with the telescopic other end and be connected the cooperation.

As a further aspect of the present invention: and external threads are arranged on two sides of the connecting block, internal threads are coaxially arranged at the other end of the sleeve, and the external threads are in threaded connection and matching with the internal threads.

The utility model has the advantages that:

(1) the utility model discloses in because the pole sample installation finishes the back, and establish fixed connection relation with the sleeve not, therefore, clamping part presss from both sides tightly the back about tensile testing machine, can not descend because of the action of gravity of tensile testing machine entablature self, lead to the bending deformation of pole sample parallel section, avoid tensile testing result distortion, the detection accuracy has been promoted, and simultaneously, threaded connection has been abandoned, need not to carry out the car silk to the pole sample and add, also can not cause the damage of sleeve internal thread, and take out the convenience after the pole sample breaks, promote detection efficiency and reduction detection cost by a wide margin.

(2) The clamping part on the one hand avoids damage to the sleeve caused by directly clamping the sleeve and on the other hand facilitates replacement when the sleeve is damaged.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is an exploded view of a sleeve and round bar sample;

FIG. 2 is a schematic structural view of the sleeve;

FIG. 3 is a view of the sleeve in cooperation with the clamping member;

FIG. 4 is a drawing showing the combination of the fixture and the round bar sample;

FIG. 5 is an exploded view of a prior art threaded mounting round bar sample;

FIG. 6 is a prior art fitting view of a threaded connection mounting round bar sample.

Labeled as:

10. a round bar sample; 11. a nose section; 12. connecting the circular arcs;

20. a sleeve; 21. opening the mouth; 22. a clamping table; 23. a circular curved surface; 24. a first through groove; 25. a second through groove; 26. an internal thread;

30. a clamped member; 31. a clamped block; 32. connecting blocks; 33. and (4) external threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted at first, refer to fig. 1, the utility model discloses it is the round bar sample 10 that needs to carry out tensile test, utilize the testing result of this round bar sample 10 to replace the tensile strength of panel product, thereby provide the tensile strength data reference for the customer, the tip of this round bar sample 10 is plush copper section 11, be the parallel section of round bar sample 10 between two upper and lower plush copper sections 11, the diameter of round bar sample 10 parallel section is less than the diameter of plush copper section 11, and be provided with between round bar sample 10 parallel section and the round bar sample 10 plush copper section 11 and connect circular arc 12 and carry out smooth transition, the above-mentioned explanation is for the convenience to establish the clamping object that the utility model discloses the anchor clamps are directed against.

Please refer to fig. 1-4, the utility model discloses a tensile endotheca anchor clamps of excellent sample, it includes sleeve 20, sleeve 20 symmetry is provided with two, be upper sleeve and lower sleeve respectively, sleeve 20 one end that is close to each other is coaxial to have seted up circular uncovered 21, uncovered 21 bore is greater than the parallel section diameter of excellent sample 10 and is less than the plush copper section 11 diameter of excellent sample 10, the T type breach has been seted up on the outer disc of sleeve 20, T type breach and sleeve 20, uncovered 21 link up, excellent sample 10 plush copper section 11 can be gone into to sleeve 20 in from T type breach card.

The installation principle is as follows: one of the convex head sections 11 of the round rod sample 10 is aligned to the T-shaped notch of the upper sleeve, the other convex head section 11 is aligned to the T-shaped notch of the lower sleeve, the convex head section 11 is loaded into the sleeve 20 from the T-shaped notch, the parallel section of the round rod sample 10 penetrates through the T-shaped notch and is placed in the opening 21, one end, away from each other, of the upper sleeve and the lower sleeve is connected with the upper clamping portion and the lower clamping portion of the tensile testing machine respectively, the tensile testing machine pulls the upper sleeve and the lower sleeve to move away from each other, and the tensile testing of the round rod sample 10 is completed.

The utility model discloses in because the pole sample 10 installation finishes the back, and establish the fixed connection relation with sleeve 20 not, therefore, clamping part presss from both sides tightly the back about tensile testing machine, can not descend because of the action of gravity of tensile testing machine entablature self, lead to the bending deformation of pole sample 10 parallel section, avoid tensile testing result distortion, the detection accuracy has been promoted, and simultaneously, threaded connection has been abandoned, need not to carry out the car silk to pole sample 10 and add, also can not cause the damage of sleeve 20 internal thread, and take out the convenience after pole sample 10 breaks, improve detection efficiency by a wide margin and reduce the detection cost by a wide margin.

Specifically, referring to fig. 2, the T-shaped notch includes a first through groove 24 and a second through groove 25 that are communicated with each other, the first through groove 24 is communicated with the inside of the sleeve 20, the second through groove 25 is communicated with the opening 21, the second through groove 25 is communicated with one end of the sleeve 20, and the first through groove 24 and the second through groove 25 are mutually matched to form the T-shaped notch.

More specifically, referring to fig. 2, the width of the first through groove 24 is greater than the diameter of the convex section 11 of the round bar sample 10, the length of the first through groove 24 is greater than the length of the convex section 11 of the round bar sample 10, and the width of the second through groove 25 is greater than the diameter of the parallel section of the round bar sample 10, so that the round bar sample 10 can be smoothly clamped into the sleeve 20 from the T-shaped notch.

Specifically, referring to fig. 2, the aperture of the opening 21 is smaller than the diameter of the inner circular surface of the sleeve 20, a clamping table 22 is formed at the joint of the opening 21 and the sleeve 20, the clamping table 22 is configured as a circular curved surface 23 matched with the connecting circular arc 12, and through the matching of the connecting circular arc 12 and the circular curved surface 23, on one hand, the round rod sample 10 in tension can be guided, so that the coaxiality of the round rod sample 10 and the sleeve 20 is ensured, on the other hand, the phenomenon of stress concentration is eliminated, and the problem that the round rod sample 10 is broken at the joint of the raised head section 11 and the parallel section thereof, so that the accuracy of tension detection is affected is avoided.

Referring to fig. 3-4, in order to facilitate the connection between the sleeve 20 and the upper and lower clamping portions of the tensile testing machine, the other end of the sleeve 20 is provided with a clamped part 30, the clamped part 30 includes a rectangular clamped block 31, one end of the clamped block 31 close to the sleeve 20 is fixedly provided with a connecting block 32, two sides of the connecting block 32 are provided with external threads 33, the other end of the sleeve 20 is coaxially provided with internal threads 26, the external threads 33 are in threaded connection and matching with the internal threads 26, the upper and lower clamping portions of the tensile testing machine clamp the clamped block 31, and the two clamped blocks 31 are pulled away from each other, so that the two sleeves 20 are pulled away from each other, and the tensile testing of the round bar sample 10 is completed.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Tensile endotheca anchor clamps of pole sample, it includes sleeve (20), and sleeve (20) symmetry is provided with two, is sleeve and lower sleeve, its characterized in that respectively: circular uncovered (21) have been seted up to the one end that sleeve (20) are close to each other coaxially, the bore of uncovered (21) is greater than parallel section diameter of pole sample (10) and is less than protruding head section (11) diameter of pole sample (10), has seted up T type breach on the outer disc of sleeve (20), T type breach and sleeve (20), uncovered (21) link up, pole sample (10) protruding head section (11) can follow T type breach card and go into to sleeve (20) in.

2. The tensile inner sleeve clamp of the round bar sample as claimed in claim 1, wherein: the T-shaped notch comprises a first through groove (24) and a second through groove (25) which are communicated with each other, the first through groove (24) is communicated with the interior of the sleeve (20), the second through groove (25) is communicated with the opening (21), and the second through groove (25) is communicated with one port of the sleeve (20).

3. The tensile inner sleeve clamp of the round bar sample as claimed in claim 2, wherein: the width of the first through groove (24) is larger than the diameter of the convex section (11) of the round bar sample (10), and the length of the first through groove (24) is larger than the length of the convex section (11) of the round bar sample (10).

4. The tensile inner sleeve clamp of the round bar sample as claimed in claim 2, wherein: the width of the second through groove (25) is larger than the diameter of the parallel section of the round bar sample (10).

5. The tensile inner sleeve clamp for the round bar test specimen according to any one of claims 1 to 4, wherein: the aperture of the opening (21) is smaller than the diameter of the inner circular surface of the sleeve (20), a clamping table (22) is formed at the joint of the opening (21) and the sleeve (20), and the clamping table (22) is set to be a circular curved surface (23) matched with the connecting circular arc (12).

6. The tensile inner sleeve clamp of the round bar sample as claimed in claim 5, wherein: one end that sleeve (20) kept away from each other is provided with by clamping part (30), receives clamping part (30) including the centre gripping piece (31) that receive of rectangle, receives that one end that centre gripping piece (31) is close to sleeve (20) is fixed to be provided with connecting block (32), and connecting block (32) can be dismantled with the other end of sleeve (20) and be connected the cooperation.

7. The tensile inner sleeve clamp of the round bar sample as claimed in claim 6, wherein: external threads (33) are arranged on two sides of the connecting block (32), internal threads (26) are coaxially formed at the corresponding end of the sleeve (20), and the external threads (33) are in threaded connection fit with the internal threads (26).