CN213616260U

CN213616260U - Tensile sample machining center sample fixture

Info

Publication number: CN213616260U
Application number: CN202022374978.8U
Authority: CN
Inventors: 刘学智; 刘佳
Original assignee: Nanjing Aoyue Testing Technology Co ltd
Current assignee: Nanjing Aoyue Testing Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-07-06
Anticipated expiration: 2030-10-22

Abstract

The utility model relates to the technical field of material mechanics experiments, in particular to a sample clamping mechanism of a tensile sample processing center, which comprises an upper clamp and a lower clamp which are symmetrically arranged, wherein the upper clamp and the lower clamp are both provided with clamping devices, the surfaces of the upper clamp and the lower clamp are both provided with chutes, the upper clamp is provided with a first driving device, the lower clamp is provided with a second driving device, and the first driving device and the second driving device drive the clamping devices to slide in the chutes; the driving device I comprises a first threaded rod, and a first connecting block fixedly connected with the clamping device is in threaded connection with the first threaded rod; connecting block one both sides are equipped with the turning block, and turning block hinged joint has the dwang, goes up anchor clamps and includes bolted connection's casing one and casing two, fixedly connected with cylinder in the casing one, the output and the dwang hinged joint of cylinder, casing one be equipped with casing two-phase adaptation flange, casing one is equipped with the rand with casing two's junction, the utility model has the advantages of simple structure, convenient to use, adjustment are simple, the centre gripping is stable.

Description

Tensile sample machining center sample fixture

Technical Field

The utility model relates to a material mechanics experiment technical field specifically is a tensile sample machining center sample fixture.

Background

The tensile testing machine is a common experimental instrument in a material mechanical property test, and mechanical property parameters of a material of a test piece are obtained by performing a tensile test on the tested piece, however, the common tensile testing machine can only perform an axial tensile test, in actual production, the stress of the material is not singly pulled or pressed, and a member in actual service is in a state of multi-directional stress, so that the mechanical property indexes of the material under various forces cannot be obtained by the single tensile test, and in the tensile process, the test piece is easy to slip due to the larger force, so that an error occurs in a detection result, and danger is possibly caused to detection personnel in serious cases.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, convenient to use, adjustment are simple, the stable tensile sample machining center sample fixture of centre gripping.

In order to achieve the above object, the utility model provides a following technical scheme: a sample clamping mechanism of a tensile sample machining center comprises an upper clamp and a lower clamp which are symmetrically arranged, wherein both the upper clamp and the lower clamp are provided with clamping devices, sliding grooves are formed in the surfaces of the upper clamp and the lower clamp, the upper clamp is provided with a first driving device, the lower clamp is provided with a second driving device, and the first driving device and the second driving device drive the clamping devices to slide in the sliding grooves;

the first driving device comprises a first threaded rod, and a first connecting block fixedly connected with the clamping device is in threaded connection with the first threaded rod;

and rotating blocks are arranged on two sides of the connecting block, and the rotating blocks are hinged with rotating rods.

Further, go up anchor clamps and include bolted connection's casing one and casing two, fixedly connected with cylinder in the casing one, the output of cylinder with dwang hinged joint.

Furthermore, the first shell is provided with a flange matched with the second shell, and a clamping ring is arranged at the joint of the first shell and the second shell.

Furthermore, drive arrangement two includes threaded rod two, threaded rod two go up threaded connection have with clamping device fixed connection's connecting block two, two one end of threaded rod run through anchor clamps and fixedly connected with handle down.

Furthermore, the second driving device comprises a third shell and a packaging plate which are fixedly connected, and the third shell is provided with an outer flange.

Furthermore, the thread directions of the two sides of the first threaded rod and the second threaded rod are opposite, the first connecting block and the rotating block are matched with the first threaded rod, and the second connecting block is matched with the second threaded rod.

Furthermore, both ends of the first threaded rod and the second threaded rod are rotatably connected with the upper clamp and the lower clamp through bearings.

Further, clamping device includes the splint of symmetry, splint bottom fixedly connected with bottom plate, splint dorsal part fixedly connected with fixed block, splint opposite side fixedly connected with clamp splice.

Further, the width of the bottom plate is larger than that of the sliding groove.

Furthermore, the cross section of the fixing block is triangular.

Furthermore, the clamping block is provided with a clamping groove, and the cross section of the clamping groove is triangular.

Furthermore, an anti-skid pad is arranged in the clamping groove.

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

the utility model can be adjusted according to the clamped sample through the clamping device which can slide, thereby being capable of clamping samples with different thicknesses, the non-slip mat can reduce the slipping phenomenon of the sample during clamping, and the clamping grooves on the two sides of the clamping device are combined into a square, thereby being suitable for the sample with a circular or polygonal section, and increasing the application range of the clamping device;

the up-and-down motion through the cylinder can drive the dwang and move to make the turning block can drive threaded rod one through inside screw and rotate, thereby drive connecting block atress removal, thereby make clamping device slide to both sides separately or to the middle part removal clamp test sample, use more convenient and fast, the utility model has the advantages of simple structure, convenient to use, adjustment are simple, the centre gripping is stable, more can adapt to the needs that use.

Drawings

FIG. 1 is a schematic structural diagram I of the present invention;

FIG. 2 is a schematic structural diagram II of the present invention;

fig. 3 is a schematic structural view of the clamping device of the present invention.

In the figure: the device comprises an upper clamp-1, a lower clamp-2, a clamping device-3, a sliding groove-4, a driving device I-5, a driving device II-6, a threaded rod I-7, a connecting block I-8, a rotating block-9, a rotating rod-10, a shell I-11, a shell II-12, a cylinder-13, a flange-14, a clamping ring-15, a threaded rod II-16, a connecting block II-17, a handle-18, a shell III-19, a packaging plate-20, an outer flange-21, a clamping plate-22, a bottom plate-23, a fixing block-24, a clamping block-25, a clamping groove-26 and an anti-slip pad-27.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a clamping mechanism for a sample of a tensile sample processing center comprises an upper clamp 1 and a lower clamp 2 which are symmetrically arranged, wherein the upper clamp 1 and the lower clamp 2 are respectively provided with a clamping device 3, the upper end and the lower end of the sample can be clamped through the clamping device 3, the surfaces of the upper clamp 1 and the lower clamp 2 are respectively provided with a chute 4, the upper clamp 1 is provided with a first driving device 5, the lower clamp 2 is provided with a second driving device 6, the first driving device 5 and the second driving device 6 drive the clamping device 3 to slide in the chute 4, and the clamping mechanism 3 can be adjusted according to the clamped sample, so that the clamping mechanism can be clamped with samples with different thicknesses;

the driving device I5 comprises a threaded rod I7, and a connecting block I8 fixedly connected with the clamping device 3 is connected to the threaded rod I7 in a threaded manner; the two sides of the first connecting block 8 are provided with rotating blocks 9, the rotating blocks 9 are hinged to rotating rods 10, the position of the clamping device 3 can be adjusted through the change of the position of the first connecting block 8, and the first connecting block 8 is driven through the rotation of the first threaded rod 7.

The upper clamp 1 comprises a first shell 11 and a second shell 12 which are connected through a bolt, a cylinder 13 is fixedly connected in the first shell 11, the output end of the cylinder 13 is hinged with a rotating rod 10, the first shell 11 is provided with a flange 14 matched with the second shell 12, a clamping ring 15 is arranged at the joint of the first shell 11 and the second shell 12, the rotating rod 10 can be driven to move through the up-and-down movement of the cylinder 13, when the output end of the cylinder 13 extends out, the rotating rod 10 is subjected to a force towards a first threaded rod 7 direction, the rotating rod 10 is enabled to rotate towards the horizontal direction, so that a rotating block 9 is driven to move towards two ends of the first threaded rod 7, the rotating block 9 can drive the first threaded rod 7 to rotate through an internal thread, and a first connecting block 8 is driven to move under the force, so that; when the output end of the air cylinder 13 contracts, the rotating rod 10 rotates in the vertical direction, so that the rotating block 9 is driven to move towards the middle position of the first threaded rod 7, and the clamping device 3 is driven by the first connecting block 8 to move towards the middle part to clamp a sample.

Two 6 drive arrangement include two 16 threaded rods, threaded connection has two 17 with 3 fixed connection's of clamping device connecting block on two 16 threaded rods, two 16 one ends of threaded rod run through anchor clamps 2 and fixedly connected with handle 18 down, two 6 drive arrangement include three 19 and the encapsulation board 20 of fixed connection's casing, three 19 casings are equipped with outward flange 21, the position of connecting block 17 can be controlled in the rotation through handle 18, two 16 rotations of threaded rod can remove about through two 17 threaded drive connecting blocks, thereby make clamping device 3 press from both sides tight sample.

Clamping device 3 includes the splint 22 of symmetry, splint 22 bottom fixedly connected with bottom plate 23, the width of bottom plate 23 is greater than the width of spout 4, splint 22 is the fixedly connected with fixed block 24 of the side of the back of the body of taking the other side away, the cross-section of fixed block 24 is triangle-shaped, fixed block 24 can prevent that splint 22 is crooked, splint 22 opposite side fixedly connected with clamp splice 25, clamp splice 25 is equipped with centre gripping groove 26, the cross-section of centre gripping groove 26 is triangle-shaped, be equipped with slipmat 27 in the centre gripping groove 26, slipmat 27 can reduce the phenomenon that the sample appears skidding when the centre gripping, and the centre gripping groove 26 of clamping device 3 both sides is gone on combining for the square, thereby can be applicable to the cross-section for circular or polygonal.

The working principle is as follows: when the clamping device is used, the clamping mechanism is installed on the stretching device, the position of the connecting block 17 can be controlled by rotating the handle 18, the threaded rod II 16 can drive the connecting block II 17 to move towards the middle through threads, so that the clamping device 3 clamps a sample, the upper clamp 1 is lowered to the horizontal plane where the sample is located, the output end of the control cylinder 13 contracts, the rotating rod 10 rotates towards the vertical direction, the rotating block 9 is driven to move towards the middle position of the threaded rod I7, and the clamping device 3 is driven by the connecting block I8 to move towards the middle to clamp the sample;

tensile afterwards, when the sample takes out, the output of control cylinder 13 stretches out, dwang 10 receives the power to a 7 directions of threaded rod, makes dwang 10 rotate to the horizontal direction to drive turning block 9 and remove to the both ends of a 7 threaded rod, turning block 9 can drive a 7 rotations of threaded rod through inside screw thread, thereby drives a 8 atress removals of connecting block, thereby makes clamping device 3 slide to both sides and part, thereby takes out the sample.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a tensile sample machining center sample fixture, includes last anchor clamps (1) and lower anchor clamps (2) that the symmetry set up, go up anchor clamps (1) and lower anchor clamps (2) and all be equipped with clamping device (3), its characterized in that: the surfaces of the upper clamp (1) and the lower clamp (2) are respectively provided with a sliding chute (4), the upper clamp (1) is provided with a first driving device (5), the lower clamp (2) is provided with a second driving device (6), and the first driving device (5) and the second driving device (6) drive the clamping device (3) to slide in the sliding chutes (4);

the first driving device (5) comprises a first threaded rod (7), and a first connecting block (8) fixedly connected with the clamping device (3) is in threaded connection with the first threaded rod (7);

and rotating blocks (9) are arranged on two sides of the first connecting block (8), and the rotating blocks (9) are hinged to rotating rods (10).

2. The specimen clamping mechanism of a tensile specimen processing center according to claim 1, characterized in that: go up anchor clamps (1) including bolted connection's casing (11) and casing two (12), fixedly connected with cylinder (13) in casing (11), the output of cylinder (13) with dwang (10) hinged joint.

3. The specimen clamping mechanism of a tensile specimen processing center according to claim 2, characterized in that: the first shell (11) is provided with a flange (14) matched with the second shell (12), and a clamping ring (15) is arranged at the joint of the first shell (11) and the second shell (12).

4. The specimen clamping mechanism of a tensile specimen processing center according to claim 1, characterized in that: the second driving device (6) comprises a second threaded rod (16), the second threaded rod (16) is connected with a second connecting block (17) fixedly connected with the clamping device (3) in a threaded manner, and one end of the second threaded rod (16) penetrates through the lower clamp (2) and is fixedly connected with a handle (18).

5. The specimen clamping mechanism of a tensile specimen processing center according to claim 1, characterized in that: the second driving device (6) comprises a third shell (19) and an encapsulating plate (20) which are fixedly connected, and the third shell (19) is provided with an outer flange (21).

6. The specimen clamping mechanism of a tensile specimen processing center according to claim 1, characterized in that: clamping device (3) are including splint (22) of symmetry, splint (22) bottom fixedly connected with bottom plate (23), splint (22) are the fixedly connected with fixed block (24) of the side of keeping back on the back, splint (22) opposite side fixedly connected with clamp splice (25).

7. The specimen clamping mechanism of a tensile specimen processing center according to claim 6, wherein: the width of the bottom plate (23) is larger than that of the sliding chute (4).

8. The specimen clamping mechanism of a tensile specimen processing center according to claim 6, wherein: the cross section of the fixing block (24) is triangular.

9. The specimen clamping mechanism of a tensile specimen processing center according to claim 6, wherein: the clamping block (25) is provided with a clamping groove (26), and the section of the clamping groove (26) is triangular.

10. The specimen clamping mechanism of a tensile specimen processing center according to claim 9, wherein: and an anti-skid pad (27) is arranged in the clamping groove (26).