CN209198204U - A kind of piece fixture of viscoelastic material fatigue and damage experiment - Google Patents

Abstract

The utility model relates to elastic material detection fields, more particularly to a kind of piece fixture of viscoelastic material fatigue and damage experiment, including pedestal, support component, punch assembly, detection components and clamp assemblies, the clamp assemblies include stop collar, spill spin block and several clampers, each clamper is slidably matched with spill spin block, the detection components are arranged on punch assembly, the utility model is when needing to carry out fatigue and damage experiment to viscoelastic material, material is placed in the stop collar on punch assembly, several clampers can be opened by rotating spill spin block, material unclamps spill spin block after placing, clamper again can fix paper material clamping, punch assembly is capable of forming stamping press, detection components are able to detect that material pressure and deformational displacement amount when extrded material, support component is used to fix material height Spend position.

Description

A kind of piece fixture of viscoelastic material fatigue and damage experiment

Technical field

The utility model relates to elastic material detection fields, and in particular to a kind of examination of viscoelastic material fatigue and damage experiment Part fixture.

Background technique

In the fields such as civil engineering, construction material has old often with having a temperature dependency and loading speed dependence Change feature, these phenomenons of construction material can be described by with viscoelastic parameters.Currently associated specification and engineering practice are substantially all Viscoelastic parameters are evaluated using creep test, this kind of experiment needs the pressure of constantly adjustment pressure head to guarantee dead load, leads to reality It tests with high costs and load and there is fluctuation.In addition, creep test is difficult to civil engineering knot after the Under Dynamic Loads such as simulating vehicle load The springback process of structure.

Viscoelastic material test is generally fixed without using a jig at present, therefore material often skids off during the test Or sliding, the fixture of the rigidity such as gripper cylinder is generally used using fixture, viscoelastic material is unlikely to deform during the test, shadow Ring test data, it is therefore desirable to which a kind of fixture flexible clamps.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of test specimen folder of viscoelastic material fatigue and damage experiment Tool.

A kind of piece fixture of viscoelastic material fatigue and damage experiment disclosed by the utility model, including pedestal, support group Part, punch assembly, detection components and clamp assemblies, the pedestal are equipped with several threaded rods, and the punch assembly setting exists The top of pedestal, the clamp assemblies include stop collar, spill spin block and several clampers, and the stop collar is fixed at punching It presses on component, the spill spin block is rotatably set on the lateral wall of stop collar, several described uniform grafting of clamper It is arranged on stop collar and spill spin block, each clamper is slidably matched with spill spin block, and the detection components are arranged in punching press On component, the liftable grafting of support component is arranged on several threaded rods and is located above detection components.

Further, each clamper includes movable block, shank, adjustable spring and sliding block, and the shank can The grafting of sliding is arranged on stop collar, the movable block be arranged in one end that shank is located inside stop collar and with punching press group Part is slidably matched, and the sliding block is arranged in the one end of shank far from movable block and is slidably matched with spill spin block, the flexible bullet Spring is set on shank and between movable block and stop collar.

Further, the spill spin block is annular star-centre structure and lateral wall is equipped with several cunnings for being convenient for shank sliding Slot, the spill spin block outer circle wall are equipped with several arc blocks, and each sliding slot is arranged in an arc block, the cunning Slot and shank correspond.

Further, the face that the sliding block is contacted with arc block is smooth cambered surface.

Further, the punch assembly includes output rod, the first support plate, the second support plate and several limited posts, At the top of the base, several limited posts are uniformly arranged on the side of output rod for output rod setting, and described first Fagging is set in the top on several limited posts and being located at output rod, and second support plate is set on several limited posts And it is located above clamp assemblies.

Further, the detection components include pressure detector and displacement detector, and the pressure detector setting exists The top of second support plate, the displacement detector are arranged in the first support plate and are slidably matched with threaded rod.

Further, the support component includes lifter plate, and the lifter plate is slidably disposed in several threaded rods On.

The utility model has the advantages that a kind of piece fixture of viscoelastic material fatigue and damage experiment of the utility model, when needs are to viscous When elastic material carries out fatigue and damage experiment, material is placed in the stop collar on punch assembly, by rotating spill spin block energy Enough to open several clampers, material unclamps spill spin block after placing, and clamper again can fix paper material clamping, punching Pressure component is capable of forming stamping press, and detection components are able to detect that material pressure and deformational displacement amount when extrded material, props up Support component is used to fix material height and position.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 is the schematic perspective view of the utility model；

Fig. 2 is the main view of the utility model；

Fig. 3 is the cross-sectional view in Fig. 2 along line A-A；

Fig. 4 is the stereo-resolution structural schematic diagram of the utility model；

Fig. 5 is the local fractionation structural representation of the utility model；

Fig. 6 is the enlarged diagram in Fig. 5 at B；

Description of symbols: pedestal 1, threaded rod 1a, support component 2, lifter plate 2a, punch assembly 3, output rod 3a, the One support plate 3b, the second support plate 3c, limited post 3d, detection components 4, pressure detector 4a, displacement detector 4b, clamp assemblies 4c, stop collar 4d, spill spin block 4e, clamper 4f, movable block 4g, shank 4h, adjustable spring 4i, sliding block 4j, arc block 4k are sliding Slot 4m.

Specific embodiment

Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices Details will be explained in the following description.It should be appreciated, however, that the details in these practices does not apply this with limitation practical new Type.That is, the details in these practices is non-essential in some embodiments of the utility model.In addition, for letter For the sake of changing schema, some known usual structures and component will be painted it in the drawings in simply illustrative mode.

In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and non-specifically The meaning of order or cis-position is censured, it is also non-to limit the utility model, it is retouched just for the sake of difference with same technique term The component stated or operation are not understood to indicate or imply its relative importance or implicitly indicate indicated technology The quantity of feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution Conjunction is not present, also not within the protection scope of the requires of the utility model.

Referring to figs. 1 to a kind of piece fixture of viscoelastic material fatigue and damage experiment shown in fig. 6, including pedestal 1, support Component 2, punch assembly 3, detection components 4 and clamp assemblies 4c, the pedestal 1 are equipped with several threaded rods 1a, the punching press The top of pedestal 1 is arranged in component 3, and the clamp assemblies 4c includes stop collar 4d, spill spin block 4e and several clampers 4f, institute Stop collar 4d is stated to be fixed on punch assembly 3, the spill spin block 4e is rotatably set on the lateral wall of stop collar 4d, Several described uniform grafting of clamper 4f are arranged on stop collar 4d and spill spin block 4e, each clamper 4f and rotation Block 4e is slidably matched, and the detection components 4 are arranged on punch assembly 3, if the liftable grafting of the support component 2 setting exists On dry threaded rod 1a and it is located at 4 top of detection components.

Working principle: when needing to carry out fatigue and damage experiment to viscoelastic material, material is placed on punch assembly 3 Stop collar 4d in, by rotate spill spin block 4e several clampers 4f can be opened, material place after unclamp rotate Block 4e, clamper 4f again can fix paper material clamping, and punch assembly 3 is capable of forming stamping press, detection group when extrded material Part 4 is able to detect that material pressure and deformational displacement amount, and support component 2 is used to fix material height and position.

Each clamper 4f includes movable block 4g, shank 4h, adjustable spring 4i and sliding block 4j, the shank 4h Slidable grafting is arranged on stop collar 4d, and one end that shank 4h is located inside stop collar 4d is arranged in the movable block 4g And be slidably matched with punch assembly 3, the sliding block 4j be arranged in the one end of shank 4h far from movable block 4g and with spill spin block 4e It is slidably matched, the adjustable spring 4i is set on shank 4h and between movable block 4g and stop collar 4d, as sliding block 4j When being moved under the drive of spill spin block 4e to outside spill spin block 4e, it is able to drive shank 4h and moves out, shank 4h and energy band Dynamic movable block 4g is moved out, and expands clamping radius, when material is put into stop collar 4d, spill spin block 4e is unclamped, in adjustable spring Shank 4h movement is driven under the tension force effect of 4i, so that mobile bar fixes material extruding.

The spill spin block 4e is annular star-centre structure and lateral wall is equipped with several sliding slot 4m for being convenient for shank 4h sliding, The spill spin block 4e outer circle wall is equipped with several arc blocks 4k, and each sliding slot 4m is arranged on an arc block 4k, The sliding slot 4m and shank 4h is corresponded, and when rotating spill spin block 4e, shank 4h can be in the sliding slot on spill spin block 4e 4m internal slide, sliding block 4j are slided on arc block 4k, and arc block 4k will push sliding block 4j to move out, therefore sliding block 4j Also dragging shank 4h is moved out.

The face that the sliding block 4j is contacted with arc block 4k is smooth cambered surface, and contact surface is that smooth cambered surface is more favorable for sliding Block 4j sliding.

The punch assembly 3 includes output rod 3a, the first support plate 3b, the second support plate 3c and several limited posts 3d, The top of pedestal 1 is arranged in the output rod 3a, several limited post 3d are uniformly arranged on the side of output rod 3a, described First support plate 3b is set in the top on several limited posts 3d and being located at output rod 3a, and the second support plate 3c is set in On several limited posts 3d and it is located above clamp assemblies 4c, output rod 3a is capable of providing power output, pushes the first support plate 3b It moves upwards, limited post 3d, which is used to limit the first support plate 3b and the second support plate 3c, only can vertically move, and material is placed Between the first support plate 3b and the second support plate 3c.

The detection components 4 include pressure detector 4a and displacement detector 4b, and the pressure detector 4a setting is the The top of two support plate 3c, the displacement detector 4b are arranged on the first support plate 3b and are slidably matched with threaded rod 1a, when First support plate 3b is moved upwards will push the second support plate 3c and pressure detector 4a when pushing material simultaneously, be able to record pressure The numerical value that force detector 4a measurement obtains.

The support component 2 includes lifter plate 2a, and the lifter plate 2a is slidably disposed on several threaded rods 1a, Lifter plate 2a is arranged on threaded rod 1a and is placed just at the top of pressure detector 4a, and pressure detector 4a is withstood.

Upper described only the embodiments of the present invention, is not intended to limit the utility model.For this field For technical staff, various modifications and changes may be made to the present invention.The interior institute of all spirit and principle in the utility model Any modification, equivalent substitution, improvement and etc. of work should all include within the scope of the claims of the utility model.

Claims (7)

1. a kind of piece fixture of viscoelastic material fatigue and damage experiment, it is characterised in that: including pedestal (1), support component (2), punch assembly (3), detection components (4) and clamp assemblies (4c), the pedestal (1) are equipped with several threaded rods (1a), The punch assembly (3) is arranged at the top of pedestal (1), and the clamp assemblies (4c) include stop collar (4d), spill spin block (4e) With several clampers (4f), the stop collar (4d) is fixed on punch assembly (3), and the spill spin block (4e) can be rotated Be set on the lateral wall of stop collar (4d), the uniform grafting setting of several described clampers (4f) in stop collar (4d) and On spill spin block (4e), each clamper (4f) is slidably matched with spill spin block (4e), and the detection components (4) are arranged in punching press On component (3), the liftable grafting of support component (2) is arranged on several threaded rods (1a) and is located at detection components (4) top.

2. a kind of piece fixture of viscoelastic material fatigue and damage experiment according to claim 1, it is characterised in that: each The clamper (4f) includes movable block (4g), shank (4h), adjustable spring (4i) and sliding block (4j), the shank (4h) Slidable grafting is arranged on stop collar (4d), and movable block (4g) setting is located in stop collar (4d) in shank (4h) The one end in portion is simultaneously slidably matched with punch assembly (3), and sliding block (4j) setting is at shank (4h) far from movable block (4g) One end is simultaneously slidably matched with spill spin block (4e), and the adjustable spring (4i) is set on shank (4h) and is located at movable block (4g) Between stop collar (4d).

3. a kind of piece fixture of viscoelastic material fatigue and damage experiment according to claim 2, it is characterised in that: described Spill spin block (4e) is annular star-centre structure and lateral wall is equipped with several sliding slots (4m) for being convenient for shank (4h) sliding, the rotation Switch block (4e) outer circle wall is equipped with several arc blocks (4k), and each sliding slot (4m) is arranged in an arc block (4k) On, the sliding slot (4m) and shank (4h) are corresponded.

4. a kind of piece fixture of viscoelastic material fatigue and damage experiment according to claim 3, it is characterised in that: described The face that sliding block (4j) is contacted with arc block (4k) is smooth cambered surface.

5. a kind of piece fixture of viscoelastic material fatigue and damage experiment according to claim 4, it is characterised in that: described Punch assembly (3) includes output rod (3a), the first support plate (3b), the second support plate (3c) and several limited posts (3d), institute It states output rod (3a) to be arranged at the top of pedestal (1), several limited posts (3d) are uniformly arranged on the side of output rod (3a) Side, first support plate (3b) are set on several limited posts (3d) and are located at the top of output rod (3a), and described second Support plate (3c) is set on several limited posts (3d) and is located above clamp assemblies (4c).

6. a kind of piece fixture of viscoelastic material fatigue and damage experiment according to claim 5, it is characterised in that: described Detection components (4) include pressure detector (4a) and displacement detector (4b), and the pressure detector (4a) is arranged at second The top of fagging (3c), the displacement detector (4b) are arranged on the first support plate (3b) and match with threaded rod (1a) sliding It closes.

7. a kind of piece fixture of viscoelastic material fatigue and damage experiment according to claim 1, it is characterised in that: described Support component (2) includes lifter plate (2a), and the lifter plate (2a) is slidably disposed on several threaded rods (1a).