CN211717962U

CN211717962U - Detection clamping device used after metal material stretch breaking

Info

Publication number: CN211717962U
Application number: CN202020056307.4U
Authority: CN
Inventors: 徐卫龙; 陈卫武
Original assignee: Suzhou Xinsu Physical And Chemical Testing Service Co ltd
Current assignee: Suzhou Xinsu Physical And Chemical Testing Service Co ltd
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-10-20
Anticipated expiration: 2030-01-11

Abstract

The utility model belongs to the technical field of the metallic material tensile test technique and specifically relates to a detect clamping device that is used for metallic material tensile back of breaking is related to, its technical scheme is, all be provided with the installation piece on front mould and the back mould, two installation pieces are all provided with the mounting hole that is used for placing the fracture sample on the lateral wall that sets up in opposite directions, the installation piece includes along radial first clamp splice and the second clamp splice that sets gradually of mounting hole, the mounting hole is formed jointly by first clamp splice and second clamp splice, be provided with between first clamp splice and the second clamp splice and be used for driving first clamp splice and second clamp splice and be the driving piece of opposite movement or back-to-back motion. One part of the broken sample is fixed in the mounting hole of the rear die, and the other part of the broken sample is fixed in the mounting hole of the front die, so that two broken samples can be fixed. At the moment, the two parts of the broken sample are abutted, the axis is positioned on the same straight line, manual holding and fixing are not needed, time and labor are saved, and the measurement precision can be effectively improved.

Description

Detection clamping device used after metal material stretch breaking

Technical Field

The utility model belongs to the technical field of metal material tensile test technique and specifically relates to a detect clamping device that is used for after metal material tensile breakage.

Background

A metal material tensile testing machine is a device for testing mechanical property indexes of various metals, non-metals and composite materials, and detects the technical indexes of the materials such as maximum bearing tension, tensile strength, elongation deformation, elongation and the like in a tensile test. Among the mechanical properties of metal materials, the elongation after fracture is an important index reflecting the plasticity of the metal materials, and the larger the value of the elongation after fracture is, the better the plasticity of the metal materials is. When the elongation after fracture is measured, the mark of the original gauge length directly influences the accurate determination of the elongation after fracture.

In the tensile test of a metal material, it is necessary to measure elongation after fracture, and in order to measure elongation after fracture, an original gauge length and a gauge length after fracture should be measured. According to the standard, the method comprises the following steps: when the gauge length after fracture is measured, the fractured parts of the test sample are carefully matched together, the axes of the fractured parts are on the same straight line, and special measures are taken to ensure that the gauge length after the fractured parts of the test sample are properly contacted can be measured.

In actual measurement, two persons are usually needed to complete, one person is butted by hands, and the other person is measured by a measuring tool. When one person takes a measurement, one hand is needed to push a part of a broken sample against a fixed object, the other hand is carefully matched to enable the axes of the broken sample to be on the same straight line, then the matched sample is held by one hand, and the gauge length of the broken sample is measured by a measuring tool by the other hand.

However, the prior art solutions have the following drawbacks: fixed through artifical handheld, waste time and energy, difficult butt joint to make measurement accuracy relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be used for the tensile detection clamping device after breaking of metal material, can effectual improvement measurement accuracy not enough to prior art exists.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a detect clamping device for after metal material stretch breaking, includes the workstation, just be provided with the front mould along its length direction's one end on the top surface of workstation, the one end that just keeps away from the front mould on the top surface of workstation is provided with the back mould, all be provided with the installation piece on front mould and the back mould, two the installation piece is all provided with the mounting hole that is used for placing the fracture sample on the lateral wall that sets up in opposite directions.

By adopting the technical scheme, when the device is used, one part of the fracture sample is firstly fixed in the mounting hole of the rear die, and the other part of the fracture sample is fixed in the mounting hole of the front die, so that the two fracture samples can be fixed. At the moment, the two parts of the broken sample are abutted, the axis is positioned on the same straight line, manual holding and fixing are not needed, time and labor are saved, and the measurement precision can be effectively improved.

The present invention may be further configured in a preferred embodiment as: the mounting block includes first clamp splice and the second clamp splice that radially sets gradually along the mounting hole, the mounting hole is formed jointly by first clamp splice and second clamp splice, be provided with between first clamp splice and the second clamp splice and be used for driving first clamp splice and second clamp splice and be the driving piece that moves in opposite directions or carry on the back mutually.

Through adopting above-mentioned technical scheme, first clamp splice and second clamp splice pass through driving piece motion in opposite directions or back of the body motion, can adjust the size of mounting hole to can place not unidimensional fracture sample.

The present invention may be further configured in a preferred embodiment as: the front die and the rear die respectively comprise supporting plates, the two supporting plates are oppositely arranged, sliding grooves used for driving the first clamping blocks to slide towards the second clamping blocks are formed in the side walls of the supporting plates, and the first clamping blocks and the second clamping blocks are in sliding fit with the sliding grooves.

Through adopting above-mentioned technical scheme, first clamp splice and second clamp splice slide in the spout and set up to can increase the stability of being connected of first clamp splice and second clamp splice.

The present invention may be further configured in a preferred embodiment as: mounting grooves are formed in two side walls, which are oppositely arranged, of the first clamping block and the second clamping block, a trapezoidal groove is defined by the two mounting grooves together, and the area of the bottom end of the trapezoidal groove is larger than that of the top end of the trapezoidal groove; the driving piece comprises a driving rod, the first clamping block and the second clamping block jointly penetrate through a sliding hole from top to bottom, the sliding hole is communicated with the trapezoidal groove, the sliding hole is in sliding fit with the driving rod, a driving ball is connected to the driving rod, and the driving ball is located in the trapezoidal groove; an elastic piece used for preventing the first clamping block and the second clamping block from moving back and forth is arranged between the first clamping block and the second clamping block.

Through adopting above-mentioned technical scheme, upwards carry and draw the actuating lever, make the actuating lever drive ball rebound, the drive is asked and is leaned on with the inner wall of dovetail groove, first clamp splice and second clamp splice move back to back in the spout under the butt effect of drive ball. After placing the fracture sample in the mounting hole, press the actuating lever downwards, make the actuating lever drive the drive and ask to resume to initial position, at this moment, the second clamp splice of first clamp splice is relative motion under the effect of elastic component to can press from both sides the fracture sample tightly.

The present invention may be further configured in a preferred embodiment as: and the bottom ends of the first clamping block and the second clamping block are provided with an extrusion plate together.

Through adopting above-mentioned technical scheme, the stripper plate can play the effect of support to first clamp splice and second clamp splice, can increase the gliding stability of first clamp splice and second clamp splice in the spout.

The present invention may be further configured in a preferred embodiment as: the extrusion plate is provided with a connecting hole communicated with the sliding hole, and an elastic reset piece used for applying elastic driving force towards the bottom wall direction of the connecting hole to the driving rod is arranged in the connecting hole.

Through adopting above-mentioned technical scheme, after placing the fracture sample in the mounting hole, loosen the actuating lever, the actuating lever drives the drive and seeks to resume to initial position under the effect that elasticity reset, and at this moment, first clamp splice and second clamp splice move in opposite directions under the effect of elastic component to can advance fracture sample and press from both sides tightly, thereby can reach the effect of being convenient for reset.

The present invention may be further configured in a preferred embodiment as: the front die is characterized in that a sliding rail is arranged on the workbench along the length direction of the workbench, a sliding groove in sliding fit with the sliding rail is formed in the front die, and a transmission part used for moving the front die is arranged on the workbench.

Through adopting above-mentioned technical scheme, fix the partly of good fracture sample in the mounting hole of back mould, then after another part of the fixed fracture sample in the mounting hole of front mould, drive the front mould under the effect of driving medium and slide on the slide rail for two parts of fracture sample offset, through adjusting the distance between front mould and the back mould, thereby can further improve measurement accuracy.

The present invention may be further configured in a preferred embodiment as: and one end of the rear die, which is close to the front die, is provided with a butt plate which is obliquely arranged.

Through adopting above-mentioned technical scheme, the butt plate can play the effect of support to the fracture sample, can further increase the connection stability of fracture sample.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the measurement precision can be effectively improved by arranging the front die, the rear die and the mounting hole;

2. the broken sample can be firmly fixed through the arrangement of the first clamping block, the second clamping block, the driving rod, the driving ball and the trapezoidal groove;

3. through the setting of butt joint board, can further increase the steadiness of fracture sample.

Drawings

Fig. 1 is a schematic view of the overall structure shown in the embodiment of the present invention;

fig. 2 is a schematic structural diagram of a rear mold according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a front mold according to an embodiment of the present invention.

In the figure, 1, a workbench; 11. a front mold; 12. a rear mold; 13. a slide rail; 14. a cylinder; 15. a connecting plate; 16. a second groove; 17. a butt joint plate; 18. a first groove; 19. mounting holes; 2. a support plate; 21. a pressing plate; 22. a chute; 23. mounting blocks; 24. a first clamping block; 25. a second clamp block; 26. a trapezoidal groove; 27. a sliding hole; 28. a drive rod; 29. a drive block; 3. a drive ball; 31. connecting grooves; 32. a first spring; 33. a second spring; 34. and connecting the holes.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a detect clamping device for after metal material stretch breaking, including workstation 1, just be provided with front mould 11 along its length direction's one end on the top surface of workstation 1, the one end that just keeps away from front mould 11 on the top surface of workstation 1 is provided with back mould 12. The top surface of the workbench 1 is provided with a slide rail 13, the slide rail 13 is arranged along the length direction of the workbench 1, and the front mold 11 is provided with a sliding groove in sliding fit with the slide rail 13. A transmission member is arranged on the top surface of the workbench 1 and on one side of the front mold 11 away from the rear mold 12, and in this embodiment, the transmission member includes an air cylinder 14, and a piston rod of the air cylinder 14 is connected with the front mold 11 and is used for driving the front mold 11 to move along the length direction of the workbench 1. The end face, close to the rear die 12, of the front die 11 is provided with a connecting plate 15, the connecting plate 15 is obliquely arranged and abuts against a fracture sample, a second groove 16 used for fixing the fracture sample is arranged on the top face of the connecting plate 15, and the second groove 16 extends to two end faces, in the length direction of the workbench 1, of the connecting plate 15.

Referring to fig. 1, front mold 11 and back mold 12 all include backup pad 2, and two backup pads 2 are on the lateral wall that sets up in opposite directions and the bottom that is located backup pad 2 all is provided with stripper plate 21, and backup pad 2 is the setting of L shape with stripper plate 21 jointly. The two supporting plates 2 are provided with sliding grooves 22 on the side walls which are oppositely arranged. The front die 11 and the rear die 12 are both provided with a mounting block 23, one end of the mounting block 23 extends into the sliding groove 22, and the bottom surface of the mounting block 23 is abutted against the extrusion plate 21. The side walls of the two mounting blocks 23 which are oppositely arranged are provided with mounting holes 19 for placing fracture samples.

Referring to fig. 2, one end of the rear mold 12 close to the front mold 11 is provided with a butt plate 17, the butt plate 17 is disposed in an inclined manner, a first groove 18 for fixing a fracture sample is disposed on the top surface of the butt plate 17, and the first groove 18 extends to two end surfaces of the butt plate 17 along the length direction of the workbench 1.

Referring to fig. 3, each of the two mounting blocks 23 includes a first clamping block 24 and a second clamping block 25 sequentially disposed along the radial direction of the mounting hole 19, the mounting hole 19 is uniformly divided into two parts by the first clamping block 24 and the second clamping block 25, and the first clamping block 24 and the second clamping block 25 can move in the sliding groove 22 toward or away from each other. The side walls of the first clamping block 24 and the second clamping block 25 which are oppositely arranged are provided with mounting grooves, the two mounting grooves are enclosed to form a trapezoid-shaped groove 26, the area of the top end of the trapezoid-shaped groove 26 is smaller than that of the bottom end of the trapezoid-shaped groove, and preferably, the trapezoid-shaped groove 26 is in a circular truncated cone shape. The top surface of the mounting block 23 is provided with a sliding hole 27 in a penetrating manner, the sliding hole 27 is formed by the first clamping block 24 and the second clamping block 25, and the sliding hole 27 is uniformly divided into two parts by the first clamping block 24 and the second clamping block 25. And the slide hole 27 communicates with the trapezoidal groove 26. A driving part for driving the first clamping block 24 and the second clamping block 25 to move in the opposite direction or in the opposite direction is arranged between the first clamping block 24 and the second clamping block 25. The driving part comprises a driving rod 28 matched with the sliding hole 27 in a sliding mode, and the top end of the driving rod 28 extends out of the sliding hole 27 to be connected with a driving block 29 which can facilitate the driving rod 28 to move up and down. The driving rod 28 is connected with a driving ball 3, the driving ball 3 is positioned in the trapezoidal groove 26, and the diameter of the driving ball 3 is larger than the diameter of the top end of the trapezoidal groove 26 and smaller than the diameter of the bottom end of the trapezoidal groove 26. When the ball driver is used, the driving rod 28 is pulled upwards, the driving rod 28 drives the driving ball 3 to move upwards, the driving ball 3 abuts against the trapezoidal groove 26, and the first clamping block 24 and the second clamping block 25 move back to back in the sliding groove 22 under the abutting action of the driving ball 3.

Referring to fig. 3, the mounting block 23 is provided with a connecting groove 31, the connecting groove 31 is uniformly divided into two parts by the side walls of the first clamping block 24 and the second clamping block 25, the two side walls of the first clamping block 24 and the second clamping block 25 which are oppositely arranged are provided with the connecting groove 31, an elastic member is arranged between the first clamping block 24 and the second clamping block 25, in this embodiment, the elastic member includes a first spring 32, the first spring 32 is arranged in the connecting groove 31, one end of the first spring 32 is fixedly connected with the first clamping block 24, and the other end of the first spring 32 is fixedly connected with the second clamping block 25.

Referring to fig. 3, the pressing plate 21 is provided with a connection hole 34 communicating with the sliding hole 27, and an elastic restoring member is provided in the connection hole 34, and in this embodiment, the elastic restoring member includes a second spring 33, one end of the second spring 33 is connected to a bottom wall of the connection hole 34, and the other end of the second spring 33 is connected to a bottom end of the driving rod 28.

The implementation principle of the embodiment is as follows:

in use, the driving rod 28 is first pulled upwards by the driving block 29, and the driving rod 28 drives the driving ball 3 to move upwards, so that the driving ball 3 abuts against the trapezoidal groove 26, and the first clamping block 24 and the second clamping block 25 move away from each other in the sliding groove 22 under the abutting action of the driving ball 3. At this time, the breaking sample is placed in the corresponding mounting hole 19, and the breaking sample is placed in the first groove 18 and the second groove 16.

After the broken sample is placed, the driving block 29 is released, the driving rod 28 drives the driving ball 3 to return to the initial position under the elastic force of the second spring 33, and at this time, the first clamping block 24 and the second clamping block 25 move towards each other under the elastic force of the first spring 32, so that the broken sample in the mounting hole 19 can be clamped.

After the broken sample is clamped, the air cylinder 14 is started, the air cylinder 14 drives the front die 11 to move towards the rear die 12, when two parts of the broken sample are abutted, at the moment, the axes of the two parts of the broken sample are positioned on the same straight line, and therefore the gauge length of the broken sample can be measured by using a measuring tool.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a detect clamping device that is used for metal material tensile after breaking which characterized in that: including workstation (1), just follow its length direction's one end on the top surface of workstation (1) and be provided with front mould (11), the one end that just keeps away from front mould (11) on the top surface of workstation (1) is provided with back mould (12), all be provided with installation piece (23) on front mould (11) and back mould (12), two installation piece (23) are all provided with mounting hole (19) that are used for placing the fracture sample on the lateral wall that sets up in opposite directions.

2. The detecting and clamping device for the metal material after the tensile fracture of the metal material according to claim 1, is characterized in that: the mounting block (23) comprises a first clamping block (24) and a second clamping block (25) which are sequentially arranged along the radial direction of the mounting hole (19), the mounting hole (19) is formed by the first clamping block (24) and the second clamping block (25) together, and a driving piece used for driving the first clamping block (24) and the second clamping block (25) to move in the opposite direction or move back to back is arranged between the first clamping block (24) and the second clamping block (25).

3. The detecting and clamping device for the metal material after the tensile fracture of the metal material according to claim 2, is characterized in that: front mould (11) and back mould (12) all include backup pad (2), two backup pad (2) are being provided with on the lateral wall that sets up in opposite directions and are used for driving first clamp splice (24) to second clamp splice (25) direction slip spout (22) that set up, first clamp splice (24) and second clamp splice (25) and spout (22) cooperation of sliding.

4. The detecting and clamping device for the metal material after the tensile fracture of the metal material according to claim 3, wherein: mounting grooves are formed in two side walls of the first clamping block (24) and the second clamping block (25) which are oppositely arranged, the two mounting grooves jointly enclose a trapezoidal groove (26), and the area of the bottom end of the trapezoidal groove (26) is larger than that of the top end of the trapezoidal groove; the driving piece comprises a driving rod (28), the first clamping block (24) and the second clamping block (25) are provided with a sliding hole (27) in a penetrating mode from top to bottom, the sliding hole (27) is communicated with the trapezoid groove (26), the sliding hole (27) is in sliding fit with the driving rod (28), the driving rod (28) is connected with a driving ball (3), and the driving ball (3) is located in the trapezoid groove (26); an elastic piece used for preventing the first clamping block (24) and the second clamping block (25) from moving back and forth is arranged between the first clamping block (24) and the second clamping block (25) together.

5. The detecting and clamping device for the metal material after the tensile fracture of the metal material according to claim 4, wherein: the bottom ends of the first clamping block (24) and the second clamping block (25) are provided with an extrusion plate (21) together.

6. The detecting and clamping device for the metal material after the tensile fracture of the metal material according to claim 5, wherein: the extrusion plate (21) is provided with a connecting hole (34) communicated with the sliding hole (27), and an elastic reset piece used for applying elastic driving force towards the bottom wall direction of the connecting hole (34) to the driving rod (28) is arranged in the connecting hole (34).

7. The detecting and clamping device for the metal material after the tensile fracture of the metal material according to claim 1, is characterized in that: the automatic stamping die is characterized in that a sliding rail (13) is arranged on the workbench (1) along the length direction of the workbench, a sliding groove in sliding fit with the sliding rail (13) is formed in the front die (11), and a driving piece used for moving the front die (11) is arranged on the workbench (1).

8. The detecting and clamping device for the metal material after the tensile fracture of the metal material according to claim 1, is characterized in that: one end, close to the front die (11), of the rear die (12) is provided with a butt joint plate (17), and the butt joint plate (17) is obliquely arranged.