CN214173998U

CN214173998U - A split type anchor clamps of fast loading and unloading for fatigue test

Info

Publication number: CN214173998U
Application number: CN202120163408.6U
Authority: CN
Inventors: 徐玉会; 王玉
Original assignee: Hangzhou Yeyuan Technology Co ltd
Current assignee: Hangzhou Yeyuan Technology Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-09-10
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a split type anchor clamps of fast loading and unloading for fatigue test, including proof box and punch holder, the bottom fixedly connected with connecting plate of proof box inner chamber, the top fixedly connected with biax motor of connecting plate. The utility model discloses a proof box, the punch holder, the connecting plate, the biax motor, positive and negative threaded rod, the thread bush, the dead lever, the lower plate, the connecting rod, the spread groove, the movable rod, a spring, the setting of kelly and draw-in groove, a split type anchor clamps of fast loading and unloading for fatigue test has been found jointly, wherein the connecting rod stretches into in the spread groove, the connecting rod can extrude kelly and spring simultaneously, and the kelly is under the spring action of spring, can make the kelly stretch into in the draw-in groove automatically, thereby can be to punch holder and the synthetic whole of lower plate, can realize fixing the test piece promptly, just so can realize carrying out fast loading and unloading's operation to the test piece in fatigue test.

Description

A split type anchor clamps of fast loading and unloading for fatigue test

Technical Field

The utility model relates to a material property test technical field specifically is a split type anchor clamps of fast loading and unloading for fatigue test.

Background

In modern mechanical equipment, fatigue fracture is a main cause of failure of mechanical parts and engineering components, and therefore, in order to improve reliability of parts and enhance safety of mechanical equipment, a fatigue life test needs to be performed on parts or materials in advance.

With the development of a metal material fatigue test technology, a set of complete test technical specification aiming at a tensile fatigue test is formed at home and abroad, because the load force is larger when the metal material is subjected to the fatigue test, the test load is accurately controlled, the test precision is improved, the relevant technical specification has strict requirements on the alignment degree and the coaxiality of the test piece clamping, but in the actual test process, because the test piece is processed and clamped, extra load can be generated in the test process, so that the actual bearing load of the test piece is inconsistent with the design load, and the test precision is influenced, at present, most of fatigue test clamps are designed in a single body type, and a thread fixed connection mode is adopted, the alignment detection is required to be carried out again when the test is disassembled and assembled every time, the consumed time is longer, the test progress is directly limited, and the test precision is influenced, so that a quick assembling and disassembling split type clamp for the fatigue test is provided, the problems set forth above are solved.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a split type anchor clamps of fast loading and unloading for fatigue test possesses split type design and easy dismounting's advantage, has solved that present fatigue test anchor clamps are mostly the monomer formula design to adopt the mode of screw thread rigid coupling, experimental dismouting all need carry out the centering again at every turn and detect, and is consuming time longer, has directly restricted experimental progress, and influences the problem of experimental precision.

In order to achieve the above object, the utility model provides a following technical scheme: a fast loading and unloading split type clamp for a fatigue test comprises a test box and an upper clamp plate, wherein the bottom of an inner cavity of the test box is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a double-shaft motor, output shafts at the left end and the right end of the double-shaft motor are fixedly connected with a positive threaded rod and a negative threaded rod, the surface of the positive threaded rod and the negative threaded rod are in threaded connection with a threaded sleeve, the top of the threaded sleeve is fixedly connected with a fixed rod, the top of the fixed rod is fixedly connected with a lower clamp plate, the front end and the rear end of the top of the lower clamp plate are fixedly connected with connecting rods, the bottom of the upper clamp plate is provided with a connecting groove matched with the connecting rods for use, the inner cavity of the upper clamp plate is provided with a movable groove, the bottom of the movable groove is slidably connected with a movable rod, a spring is fixedly connected between the two movable rods, and one side of the two movable rods, which is far away from the spring, is fixedly connected with a clamping rod, the surface of the connecting rod is provided with a clamping groove matched with the clamping rod for use, and the clamping rod is movably connected with the clamping groove.

Preferably, a through hole is formed in the top of the inner cavity of the movable groove, and the movable rod penetrates through the through hole and extends to the outer portion of the upper clamping plate.

Preferably, the mounting groove has all been seted up to the junction of punch holder and lower plate, the inner chamber of mounting groove is provided with the test piece, the spout has been seted up to the bottom of activity groove, the inner chamber and the movable rod sliding connection of spout.

Preferably, the two sides of the inner cavity of the test box are fixedly connected with partition plates, and the inner cavity of each partition plate is provided with a movable hole matched with the fixing rod for use.

Preferably, the left side of the surface of the test chamber is movably connected with a chamber door through a hinge, and the surface of the chamber door is provided with an observation window and a controller.

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

1. the utility model discloses a proof box, the punch holder, the connecting plate, the biax motor, positive and negative threaded rod, the thread bush, the dead lever, the lower plate, the connecting rod, the spread groove, the movable rod, a spring, the setting of kelly and draw-in groove, a split type anchor clamps of fast loading and unloading for fatigue test has been found jointly, wherein the connecting rod stretches into in the spread groove, the connecting rod can extrude kelly and spring simultaneously, and the kelly is under the spring action of spring, can make the kelly stretch into in the draw-in groove automatically, thereby can be to punch holder and the synthetic whole of lower plate, can realize fixing the test piece promptly, just so can realize carrying out fast loading and unloading's operation to the test piece in fatigue test.

2. The utility model discloses a set up the through-hole, can the person of facilitating the use press down two movable rods, can be so that two movable rods remove in the through-hole, through setting up the mounting groove, can press from both sides tight fixedly to the testpieces to can the person of facilitating the use install the testpieces, through setting up baffle and activity hole, can protect the biax motor, avoid appearing the fracture in the testpieces in the experimentation, the piece of production influences the rotation of biax motor.

Drawings

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

FIG. 2 is a cross-sectional view of the upper plate of the present invention;

FIG. 3 is a perspective view of the upper and lower clamping plates of the structure of the present invention;

FIG. 4 is a schematic view of the structure of the present invention;

fig. 5 is a perspective view of a test piece according to the present invention.

In the figure: 1. a test chamber; 2. an upper splint; 3. a connecting plate; 4. a double-shaft motor; 5. a positive and negative threaded rod; 6. a threaded sleeve; 7. fixing the rod; 8. a lower splint; 9. a connecting rod; 10. connecting grooves; 11. a movable groove; 12. a movable rod; 13. a spring; 14. a clamping rod; 15. a card slot; 16. a through hole; 17. mounting grooves; 18. a chute; 19. a partition plate; 20. a movable hole; 21. a box door; 22. and (5) testing the part.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, a fast-assembling and fast-disassembling split type clamp for fatigue test comprises a test box 1 and an upper clamp plate 2, a connecting plate 3 is fixedly connected to the bottom of the inner cavity of the test box 1, a double-shaft motor 4 is fixedly connected to the top of the connecting plate 3, a positive and negative threaded rod 5 is fixedly connected to the output shafts at the left and right ends of the double-shaft motor 4, a threaded sleeve 6 is connected to the surface of the positive and negative threaded rod 5 through threads, a fixed rod 7 is fixedly connected to the top of the threaded sleeve 6, a lower clamp plate 8 is fixedly connected to the top of the fixed rod 7, a connecting rod 9 is fixedly connected to the front end and the rear end of the top of the lower clamp plate 8, a connecting groove 10 matched with the connecting rod 9 is formed in the bottom of the upper clamp plate 2, a movable groove 11 is formed in the inner cavity of the upper clamp plate 2, a movable rod 12 is slidably connected to the bottom of the movable groove 11, a spring 13 is fixedly connected between the two movable rods 12, a clamping rod 14 is fixedly connected to one side far from the spring 13, the surface of the connecting rod 9 is provided with a clamping groove 15 which is matched with the clamping rod 14, the clamping rod 14 is movably connected with the clamping groove 15, through the arrangement of the test box 1, the upper clamping plate 2, the connecting plate 3, the double-shaft motor 4, the positive and negative threaded rods 5, the threaded sleeve 6, the fixed rod 7, the lower clamping plate 8, the connecting rod 9, the connecting groove 10, the movable groove 11, the movable rod 12, the spring 13, the clamping rod 14 and the clamping groove 15, a quick assembling and disassembling split type clamp for the fatigue test is jointly constructed, wherein the connecting rod 9 extends into the connecting groove 10, and the connecting rod 9 presses the clamping rod 14 and the spring 13, the clamping rod 14 can automatically extend into the clamping groove 15 under the elastic force of the spring 13, so that the upper clamping plate 2 and the lower clamping plate 8 can be integrated into a whole, that is, the test piece 22 can be fixed, and thus, the test piece 22 can be quickly attached and detached in the fatigue test.

In this embodiment, specifically, through-hole 16 has been seted up at the top of activity groove 11 inner chamber, and movable rod 12 runs through-hole 16 and extends to the outside of punch holder 2, through setting up through-hole 16, can make things convenient for the user to press two movable rods 12, can make two movable rods 12 remove in through-hole 16.

In this embodiment, specifically, mounting groove 17 has all been seted up to the junction of punch holder 2 and lower plate 8, and the inner chamber of mounting groove 17 is provided with testpieces 22, and spout 18 has been seted up to the bottom of activity groove 11, and spout 18's inner chamber and movable rod 12 sliding connection can press from both sides tightly fixedly to testpieces 22 through setting up mounting groove 17 to can the person of facilitating the use install testpieces 22.

In this embodiment, it is concrete, the equal fixedly connected with baffle 19 in both sides of proof box 1 inner chamber, the movable hole 20 that cooperation dead lever 7 used is seted up to the inner chamber of baffle 19, through setting up baffle 19 and movable hole 20, can protect double-shaft motor 4, avoids appearing the fracture in test piece 22 in the experimentation, and the piece of production influences double-shaft motor 4.

In this embodiment, specifically, the left side of the surface of the test chamber 1 is movably connected with a chamber door 21 through a hinge, and the surface of the chamber door 21 is provided with an observation window and a controller.

When the device is used, a test piece 22 is placed in the mounting groove 17, the upper clamping plate 2 is closed, the connecting rod 9 extends into the connecting groove 10, the clamping rod 14 and the spring 13 are extruded by the connecting rod 9, the clamping rod 14 automatically extends into the clamping groove 15 under the elastic force of the spring 13, the test piece 22 can be automatically fixed, relevant data are set through an external controller, the double-shaft motor 4 is started to drive the positive and negative threaded rod 5 to rotate, the positive and negative threaded rod 5 can drive the two threaded sleeves 6 to respectively move towards two opposite directions, so that a tensile fatigue test for the test piece 22 is realized, after the test is finished, a user can simultaneously extrude the two movable rods 12 by hands to drive the clamping rod 14 to be separated from the clamping groove 15, then the upper clamping plate 2 can be taken down, and the partition plate 19 and the movable hole 20 are arranged, can protect biaxial motor 4, avoid appearing the fracture at experimentation in-process testpieces 22, the piece of production influences the rotation of biaxial motor 4, the cooperation of above structure has solved that present fatigue test anchor clamps are mostly the monomer formula design to adopt the mode of screw thread rigid coupling, experimental dismouting all need carry out the centering again at every turn and detect, and is consuming time longer, has directly restricted experimental progress, and influences the problem of experimental precision.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a split type anchor clamps of fast loading and unloading for fatigue test, includes proof box (1) and punch holder (2), its characterized in that: the bottom of the inner cavity of the test box (1) is fixedly connected with a connecting plate (3), the top of the connecting plate (3) is fixedly connected with a double-shaft motor (4), output shafts at the left end and the right end of the double-shaft motor (4) are fixedly connected with a positive and negative threaded rod (5), the surface of the positive and negative threaded rod (5) is in threaded connection with a threaded sleeve (6), the top of the threaded sleeve (6) is fixedly connected with a fixed rod (7), the top of the fixed rod (7) is fixedly connected with a lower clamping plate (8), the front end and the rear end of the top of the lower clamping plate (8) are both fixedly connected with a connecting rod (9), the bottom of the upper clamping plate (2) is provided with a connecting groove (10) matched with the connecting rod (9) for use, the inner cavity of the upper clamping plate (2) is provided with a movable groove (11), and the bottom of the movable groove (11) is slidably connected with a movable rod (12), two equal fixedly connected with spring (13), two between movable rod (12) the equal fixedly connected with kelly (14) in one side that spring (13) were kept away from in movable rod (12), draw-in groove (15) that cooperation kelly (14) used are seted up on the surface of connecting rod (9), kelly (14) and draw-in groove (15) swing joint.

2. The quick-release split clamp for the fatigue test according to claim 1, wherein: a through hole (16) is formed in the top of the inner cavity of the movable groove (11), and the movable rod (12) penetrates through the through hole (16) and extends to the outer portion of the upper clamping plate (2).

3. The quick-release split clamp for the fatigue test according to claim 1, wherein: mounting groove (17) have all been seted up to the junction of punch holder (2) and lower plate (8), the inner chamber of mounting groove (17) is provided with testpieces (22), spout (18) have been seted up to the bottom of activity groove (11), the inner chamber and movable rod (12) sliding connection of spout (18).

4. The quick-release split clamp for the fatigue test according to claim 1, wherein: both sides of the inner cavity of the test box (1) are fixedly connected with partition plates (19), and the inner cavity of each partition plate (19) is provided with a movable hole (20) matched with the fixing rod (7) for use.

5. The quick-release split clamp for the fatigue test according to claim 1, wherein: the left side of the surface of the test chamber (1) is movably connected with a chamber door (21) through a hinge, and the surface of the chamber door (21) is provided with an observation window and a controller.