CN217084465U

CN217084465U - Tensile test device

Info

Publication number: CN217084465U
Application number: CN202123333955.3U
Authority: CN
Inventors: 李瑞峰; 张成龙; 杨涛
Original assignee: Wuxi Commercial Testing Technology Co ltd
Current assignee: Wuxi Commercial Testing Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-29
Anticipated expiration: 2031-12-28

Abstract

The utility model belongs to the technical field of test equipment technique and specifically relates to indicate a tensile test device. It has solved the problem that current device can not carry out the drawing to the both ends of wire rod simultaneously. The wire rod fixing device comprises a base, wherein two fixing assemblies used for fixing two ends of a wire rod respectively are arranged on the base, a stretching assembly capable of driving the two fixing assemblies to move in opposite directions synchronously is arranged on the base, a graduated scale is further arranged on the base, a pointer is arranged on the stretching assembly, and the pointer moves along the length direction of the graduated scale when the stretching assembly drives the fixing assemblies to move. The utility model discloses can stretch the both ends of taking the test wire rod simultaneously, thereby avoid only carrying out the deformation state of the wire rod of being not convenient for of application of force to the one end of wire rod, can effectively eliminate the deformation asymmetry that awaits measuring when the test wire rod is tensile, be convenient for ensure the atress balance that awaits measuring the test wire rod, promote the tensile test effect to the wire rod.

Description

Tensile test device

Technical Field

The utility model belongs to the technical field of test equipment technique and specifically relates to indicate a tensile test device.

Background

Many materials need carry out each item after producing and detect its intensity, hardness and tensile strength etc. for example, and when detecting the tensile strength of material, need carry out even symmetrical application of force to the material, be convenient for directly perceived the deformation of looking over the material.

The existing tensile test device fixes the two ends of a material through a clamping piece when in use, but can not simultaneously stretch the two ends of the material, only apply force to one end of the material to judge the deformation state of the material inconveniently, can not eliminate the asymmetry of deformation of the material to be tested when in stretching, can not ensure the stress balance of the material to be tested, and reduces the tensile test effect on the material.

Disclosure of Invention

The utility model provides a tensile test device, which is beneficial to fixing two ends of a wire to be tested respectively through a fixing component, and improving the installation stability of the wire; the both ends that drive fixed back wire rod through tensile subassembly are synchronous along opposite direction tensile, can stretch to the both ends of taking the test wire rod simultaneously, thereby avoid only carrying out the deformation state of the wire rod of being not convenient for to the one end of wire rod application of force, can effectively eliminate the deformation asymmetry when awaiting measuring the wire rod of awaiting measuring and tensile, are convenient for ensure the atress balance of the wire rod of awaiting measuring, promote the tensile test effect to the wire rod.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a tensile test device, includes the base, be equipped with two fixed subassemblies that are used for respectively fixing the wire rod both ends on the base, be equipped with on the base and drive the tensile subassembly that two fixed subassemblies removed along opposite direction in step, still be equipped with the scale on the base, be equipped with the pointer on the tensile subassembly, work as the length direction that the pointer removed along the scale when tensile subassembly drove fixed subassembly and removed.

Further, the fixed component comprises a fixed seat, a positioning claw, a moving claw and a screw rod, the fixed seat is connected to the base in a sliding mode, the positioning claw is fixedly installed on the fixed seat, the moving claw is connected to the fixed seat in a sliding mode, the moving claw is connected with the screw rod in a rotating mode, the screw rod is connected to the fixed seat in a threaded mode, the end portion of the wire rod is vertically placed between the positioning claw and the moving claw, and the screw rod extends in the direction perpendicular to the wire rod.

Furthermore, a semicircular notch is formed in the top of the fixing seat, and the positioning claw and the moving claw are respectively located at two ends of the notch.

Furthermore, the stretching assembly comprises a rotating gear, a first rack, a second rack, a first sliding block and a second sliding block, the first sliding block and the second sliding block are parallel to each other and are fixedly installed on the base, the rotating gear is rotatably connected to the base, the first sliding block and the second sliding block are symmetrically arranged about the center of the rotating gear, a first sliding groove is formed in the first sliding block, the first rack is fixedly connected with one of the fixing assemblies and is in sliding connection with the first sliding groove, a second sliding groove is formed in the second sliding block, and the second rack is fixedly connected with the other fixing assembly and is in sliding connection with the second sliding groove.

Furthermore, the two fixing assemblies are symmetrically arranged at two ends of the rotating gear, and the distance between the two fixing assemblies is equal to the maximum length of the whole first rack and the first sliding block.

Furthermore, a handle is arranged on the fixed seat.

The utility model has the advantages that:

1. the fixing assembly is favorable for fixing two ends of the wire to be tested respectively, so that the mounting stability of the wire is improved; the both ends that drive fixed back wire rod through tensile subassembly are synchronous along opposite direction tensile, can stretch to the both ends of taking the test wire rod simultaneously, thereby avoid only carrying out the deformation state of the wire rod of being not convenient for to the one end of wire rod application of force, can effectively eliminate the deformation asymmetry when awaiting measuring the wire rod of awaiting measuring and tensile, are convenient for ensure the atress balance of the wire rod of awaiting measuring, promote the tensile test effect to the wire rod.

2. Before carrying out the wire rod test, after the wire rod is installed on fixed subassembly, acquire the initial numerical value on corresponding the scale through the pointer, drive fixed subassembly through tensile subassembly and remove to tensile test after, acquire numerical value on the scale that the pointer corresponds, can obtain corresponding tensile length, be convenient for directly perceivedly know tensile test's test distance.

3. The movable claw can be driven to move by rotating the screw rod, the distance between the positioning claw and the movable claw can be accurately controlled, wires of different sizes can be tested conveniently, the application range of the testing device is enlarged, the wires can be disassembled and assembled conveniently, and the fixing effect is good.

4. The contact area of the wires during installation is increased, the wires are prevented from being scratched, and the supporting effect of the wires is effectively improved.

5. The wire rod of being convenient for passes, can wear to locate the fixing base with the wire rod, compact structure.

Drawings

FIG. 1 is a first schematic structural diagram of the tensile testing apparatus;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a second schematic structural view of the tensile testing apparatus;

FIG. 4 is an enlarged view of FIG. 3 at B;

FIG. 5 is a schematic structural view of the fixing base;

FIG. 6 is a structural cross-sectional view of a first slider;

FIG. 7 is a structural cross-sectional view of a second slider;

description of reference numerals:

01. a wire rod; 1. a base; 2. a fixing assembly; 21. a fixed seat; 211. a notch; 22. a positioning claw; 23. a movable claw; 24. a screw; 3. a stretching assembly; 31. a rotating gear; 32. a first rack; 33. a second rack; 34. a first slider; 341. a first chute; 35. a second slider; 351. a second chute; 4. a graduated scale; 5. a pointer; 6. a handle.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1-7, a tensile test device comprises a base 1, two fixing components 2 for respectively fixing two ends of a wire 01 are arranged on the base 1, a stretching component 3 capable of driving the two fixing components 2 to synchronously move along opposite directions is arranged on the base 1, a graduated scale 4 is further arranged on the base 1, a pointer 5 is arranged on the stretching component 3, and the pointer 5 moves along the length direction of the graduated scale 4 when the stretching component 3 drives the fixing components 2 to move.

As shown in fig. 1 to 7, the two ends of the wire 01 to be tested are respectively fixed by the fixing components 2, so that the installation stability of the wire 01 is improved; the two ends of the fixed wire rod 01 are driven by the stretching assembly 3 to be stretched in opposite directions synchronously, the two ends of the wire rod 01 to be tested can be stretched simultaneously, the phenomenon that the deformation state of the wire rod 01 is inconvenient due to the fact that only one end of the wire rod 01 is forced is avoided, the deformation asymmetry of the wire rod 01 to be tested during stretching can be effectively eliminated, the stress balance of the wire rod 01 to be tested is convenient to guarantee, and the stretching test effect of the wire rod 01 is improved; as shown in fig. 1 and 4, before the wire 01 is tested, after the wire 01 is mounted on the fixed assembly 2, an initial value on the corresponding scale 4 is obtained through the pointer 5, and after the fixed assembly 2 is driven by the stretching assembly 3 to move to the end of the stretching test, a value on the scale 4 corresponding to the pointer 5 is obtained, so that a corresponding stretched length can be obtained, and the testing distance of the stretching test can be conveniently and visually known; the first and

second racks

32 and 33 are guided by the first and

second sliders

34 and 35, respectively, so that the movement stability of the first and

second racks

32 and 33 is improved.

As shown in fig. 2 and 5, in the embodiment, the fixing assembly 2 includes a fixing seat 21, a positioning claw 22, a moving claw 23 and a screw 24, the fixing seat 21 is slidably connected to the base 1, the positioning claw 22 is fixedly mounted on the fixing seat 21, the moving claw 23 is slidably connected to the fixing seat 21, the moving claw 23 is rotatably connected to the screw 24, the screw 24 is threadedly connected to the fixing seat 21, an end of the wire 01 is vertically placed between the positioning claw 22 and the moving claw 23, and the screw 24 extends in a direction perpendicular to the wire 01.

The screw rod 24 is rotated to drive the moving claw 23 to move, the distance between the positioning claw 22 and the moving claw 23 can be precisely controlled, wires 01 with different sizes can be conveniently tested, the application range of the testing device is expanded, the wires 01 can be conveniently dismounted and mounted, and the fixing effect is good; wherein, positioning pawl 22 and removal claw 23 all are fan ring structure, and the surface of medial surface laminating wire rod 01 through this fan ring improves the area of contact when wire rod 01 installs, avoids fish tail wire rod 01 to effectively improve the support effect to wire rod 01.

As shown in fig. 2 and 5, in the embodiment, the top of the fixed seat 21 is provided with a semicircular notch 211, and the positioning pawl 22 and the moving pawl 23 are respectively located at two ends of the notch 211. Through breach 211, be convenient for wire rod 01 to pass, can wear to locate wire rod 01 in fixing base 21, compact structure.

As shown in fig. 1, the stretching assembly 3 includes a rotating gear 31, a first rack 32, a second rack 33, a first slider 34 and a second slider 35, the first slider 34 and the second slider 35 are parallel to each other and are both fixedly mounted on the base 1, the rotating gear 31 is rotatably connected to the base 1, the first slider 34 and the second slider 35 are symmetrically arranged about the center of the rotating gear 31, a first sliding groove 341 is formed in the first slider 34, the first rack 32 is fixedly connected and slidably connected to one of the fixing assemblies 2 in the first sliding groove 341, a second sliding groove 351 is formed in the second slider 35, and the second rack 33 is fixedly connected and slidably connected to the other fixing assembly 2 in the second sliding groove 351.

As shown in fig. 1, 2, and 3, the fixing base 21 provided with the first rack 32 is driven by an external force to move in a direction away from the second rack 33, the rotating gear 31 is driven to rotate, the second gear is driven to translate in a direction away from the first rack 32 under the meshing action of the rotating gear 31 and the second gear, so as to drive another fixing base 21 and the second rack 33 to move synchronously, before the fixing base 21 moves, the pointer 5 corresponds to an initial value on the scale 4, the moving distance of the first rack 32 is a stretching distance, and when the stretching is finished, a value on the scale 4 corresponding to the pointer 5 is obtained, so that a corresponding stretched length can be obtained, and the testing distance of the stretching test can be conveniently and visually known; the first and

second racks

32 and 33 are guided by the first and

second sliders

34 and 35, respectively, so that the movement stability of the first and

second racks

32 and 33 is improved.

As shown in fig. 1, in the present embodiment, two fixed assemblies 2 are symmetrically disposed at both ends of the rotating gear 31, and a distance between the two fixed assemblies 2 is equal to a maximum length of the whole of the first rack 32 and the first slider 34.

The rotating gear 31 is arranged at the middle position of the two fixed seats 21, so that the maximum moving distance of the first rack 32 and the maximum moving distance of the second rack 33 are effectively ensured to be the same, and the stroke waste is avoided.

As shown in fig. 1, 2 and 5, in the present embodiment, a handle 6 is disposed on the fixing base 21. The fixing seat 21 is moved through the handle 6, so that the fixing seat 21 is driven to move conveniently.

All the technical features in the embodiment can be freely combined according to actual needs.

The above embodiments are preferred implementations of the present invention, and in addition, the present invention includes other implementations, and any obvious replacement is within the protection scope of the present invention without departing from the concept of the present invention.

Claims

1. The utility model provides a tensile test device, includes base (1), its characterized in that, be equipped with two fixed subassembly (2) that are used for respectively fixing wire rod (01) both ends on base (1), be equipped with on base (1) and drive tensile subassembly (3) that two fixed subassembly (2) removed along opposite direction in step, still be equipped with scale (4) on base (1), be equipped with pointer (5) on tensile subassembly (3), work as when tensile subassembly (3) drive fixed subassembly (2) and remove pointer (5) along the length direction of scale (4).

2. The tensile testing apparatus according to claim 1, wherein the fixed assembly (2) comprises a fixed seat (21), a positioning pawl (22), a moving pawl (23) and a threaded rod (24), the fixed seat (21) is slidably connected to the base (1), the positioning pawl (22) is fixedly mounted on the fixed seat (21), the moving pawl (23) is slidably connected to the fixed seat (21), the moving pawl (23) is rotatably connected to the threaded rod (24), the threaded rod (24) is threadedly connected to the fixed seat (21), an end portion of the wire (01) is vertically placed between the positioning pawl (22) and the moving pawl (23), and the threaded rod (24) extends in a direction perpendicular to the wire (01).

3. The tensile testing apparatus according to claim 2, wherein the top of the fixed seat (21) is formed with a semicircular notch (211), and the positioning pawl (22) and the moving pawl (23) are respectively located at two ends of the notch (211).

4. The tensile testing apparatus according to claim 3, wherein the tensile assembly (3) comprises a turning gear (31), a first rack (32), a second rack (33), a first slider (34) and a second slider (35), the first sliding block (34) and the second sliding block (35) are parallel to each other and are fixedly arranged on the base (1), the rotating gear (31) is rotationally connected to the base (1), the first sliding block (34) and the second sliding block (35) are symmetrically arranged around the center of the rotating gear (31), a first sliding groove (341) is formed in the first sliding block (34), the first rack (32) is fixedly connected with one of the fixed components (2) and is connected in the first sliding groove (341) in a sliding manner, and a second sliding groove (351) is formed in the second sliding block (35), and the second rack (33) is fixedly connected with the other fixing component (2) and is connected in the second sliding groove (351) in a sliding manner.

5. The tensile testing apparatus according to claim 4, wherein two of said fixed assemblies (2) are symmetrically disposed at both ends of the rotating gear (31), and the distance between the two fixed assemblies (2) is equal to the maximum length of the whole of the first rack (32) and the first slider (34).

6. Tensile testing device according to claim 2, wherein a handle (6) is provided on the holder (21).