CN205352836U

CN205352836U - Universal anchor clamps are used in test of out -of -shape sample vickers hardness

Info

Publication number: CN205352836U
Application number: CN201620060989.XU
Authority: CN
Inventors: 王晓溪; 张翔; 张雨正; 於敏
Original assignee: Xuzhou University of Technology
Current assignee: Xuzhou University of Technology
Priority date: 2016-01-21
Filing date: 2016-01-21
Publication date: 2016-06-29
Anticipated expiration: 2026-01-21

Abstract

The utility model provides an universal anchor clamps are used in test of out -of -shape sample vickers hardness, has a horizontally roof, and the roof is connected with the guide pillar through guide pin bushing all around, be provided with press in nut and hand screw on the guide pin bushing, the lower part of roof is equipped with the bottom plate parallel with the roof, and the order is provided with movable workstation, vertical screw rod, guide post and universal ball head above the bottom plate, the last matching of universal ball head cover is equipped with the concave spherical surface cassette to fix through the helicoidal, the horizontal welding in concave spherical surface cassette top has the grip block of grip slipper and a pair of activity, the lower part of grip block and grip slipper internally mounted's transverse threaded rod looks accordant connection, the test of this kind irregular sample vickers hardness is with universal anchor clamps simple structure not only, dismouting and maintain that the maintenance is convenient, and convenient operation moreover can be used to that shape complicacy, section size are little, the terminal surface of surface irregularities, the irregular sample of appearance makes level, is particularly useful for this type of sample and carries out vickers hardness and test.

Description

A kind of sample Vickers hardness test universal fixture in irregular shape

Technical field

This utility model relates to a kind of sample hardness test special fixture, especially a kind of sample Vickers hardness test universal fixture in irregular shape.

Background technology

Hardness refers to material opposing local deformation, the ability of particularly plastic deformation, impression or cut, and it is a kind of performance characterizing metal material soft or hard degree；The especially forced hardness test of hardness test, owing to equipment is simple, easy to operate, work efficiency is high, can reflect again chemical composition and the organizational structure difference of metal material sensitively simultaneously, thus be widely used in checking the change of the performance of metal material, the quality of heat processing technique or research metallization structure；Wherein, Vickers hardness is commonly used to measure less, relatively thin sample, and due to it, to have impression size little, certainty of measurement advantages of higher, is producing and is being widely used in scientific research.

During Vickers hardness test, for obtaining reliable measurement result, it is desirable to sample to be tested surfacing and smooth, generally need polished process, to guarantee that pressure head is perpendicular to test surfaces；For some small bores, complex-shaped and there is erose sample, often detected material is made and there is inlaying sample or using special durometer clamping device to test of certain specification；But, the manufacturing process of inlaying of sample wastes time and energy, and operation is loaded down with trivial details, and the bottom surface inlaying sample often can produce certain gradient, or sample following peripheral easily exists overlap etc., and which kind of situation all will directly influence the precision of hardness test；And traditional durometer clamping device is only applicable to the sample with smooth parallel surfaces; for curved surface sample and the plane sample do not paralleled with clamping plane; in loading procedure; because realizing face contact between surface to be measured and clamping device, because of slip, unstability, sample often can cause that Vickers hardness test result is inaccurate.

Summary of the invention

During in order to overcome present stage to implement Vickers hardness test, the manufacturing process of inlaying of sample wastes time and energy, operation is loaded down with trivial details, relatively costly, simultaneously traditional durometer clamping device is only applicable to the problem with flat surface sample, and this utility model provides a kind of universal fixture testing material hardness in irregular shape；This utility model compact conformation, new style, easy to operate, it can effectively eliminate the irregularly shaped impact on sample Vickers hardness test result, and there is left and right distance and the gimbal function of the adjustable 360 degree of directional trims of upper-lower height, clamping stability is good, measurement result is reliable, applied widely.

This utility model solves its technical problem and be the technical scheme is that a kind of sample Vickers hardness test universal fixture in irregular shape includes: top board, guide pillar, guide pin bushing, self-clinching nut, hands the turn of the screw, base plate, workbench, vertical screw rod, lead, universal ball end, bung flange, concave spherical surface deck, transverse screw, grip slipper, grip block；This Universal clamp has the top board of a level, and top board is connected with guide pillar by the guide pin bushing of surrounding；Guide pin bushing being provided with self-clinching nut and hands the turn of the screw, the height of fixing guide pillars and bushes can being regulated by self-clinching nut and hands the turn of the screw, thus positioning；The bottom of top board is provided with the base plate parallel with top board, and the above of base plate is sequentially set with the workbench of activity, vertical screw rod, lead and universal ball end；On universal ball end, coupling is set with concave spherical surface deck, and is fixed by bung flange；Concave spherical surface deck top transverse weld has the grip block of grip slipper and a pair activity, and the bottom of the grip block transverse screw internally installed with grip slipper matches and be connected, the rotation of transverse screw, it is possible to regulate the distance between a pair grip block.

During use, being put into by sample in grip block and clamp, be then put on workbench by grip slipper, unclamp hands the turn of the screw and regulate top board to proper height, unclamp bung flange switching concave spherical surface deck simultaneously, fine setting grip slipper is at proper angle；Promote grip slipper and be close to top board to sample to be tested end face, tighten bung flange fixing locking grip slipper；Now, sample to be tested end face and base plate lower surface keeping parallelism；Unclamp hands the turn of the screw, raise and lift top board, take out the grip slipper with sample；Then taken and the testing stand of Smaller load Vickers or digital readout Vicker hardness tester is carried out sample hardness number mensuration, or be put into the enterprising line number value calibrating of metrical instrument workbench.

The beneficial effects of the utility model are: this kind of irregular sample Vickers hardness test universal fixture is not only simple in structure, dismounting and maintaining are convenient, and it is easy to operate, can be used for complex-shaped, sectional dimension is little, the end face of the irregular sample of surface irregularity, profile is levelling, be particularly suited for such sample and carry out Vickers hardness test.

Accompanying drawing explanation

Fig. 1 is structural principle schematic diagram of the present utility model.

Fig. 2 is this utility model schematic three dimensional views.

Number in the figure: 1. top board, 2. guide pillar, 3. guide pin bushing, 4. self-clinching nut, 5. hands the turn of the screw, 6. base plate, 7. workbench, 8. vertical screw rod, 9. lead, 10. universal ball end, 11. bung flanges, 12. concave spherical surface decks, 13. transverse screws, 14. grip slippers, 15. grip blocks.

Detailed description of the invention

As it is shown in figure 1, a kind of sample Vickers hardness test universal fixture in irregular shape includes: top board 1, guide pillar 2, guide pin bushing 3, self-clinching nut 4, hands the turn of the screw 5, base plate 6, workbench 7, vertical screw rod 8, lead 9, universal ball end 10, bung flange 11, concave spherical surface deck 12, transverse screw 13, grip slipper 14, grip block 15；This Universal clamp has the top board 1 of a level, and top board 1 is connected with guide pillar 2 by the guide pin bushing 3 of surrounding；Guide pin bushing 3 being provided with self-clinching nut 4 and hands the turn of the screw 5, the height of fixing guide pillar 2 and guide pin bushing 3 can being regulated by self-clinching nut 4 and hands the turn of the screw 5, thus positioning；The bottom of top board 1 is provided with the base plate 6 parallel with top board 1, and the above of base plate 6 is sequentially set with the workbench 7 of activity, vertical screw rod 8, lead 9 and universal ball end 10；On universal ball end 10, coupling is set with concave spherical surface deck 12, and is fixed by bung flange 11；Concave spherical surface deck 12 top transverse weld has the grip block 15 of grip slipper 14 and a pair activity, and the bottom of grip block 15 transverse screw 13 internally installed with grip slipper 14 matches and be connected, the rotation of transverse screw 13, it is possible to regulate the distance between a pair grip block 15.

During use, being put into by sample in grip block 15 and clamp, be then put on workbench 7 by grip slipper 14, unclamp hands the turn of the screw 5 and regulate top board 1 to proper height, unclamp bung flange 11 switching concave spherical surface deck 12 simultaneously, fine setting grip slipper 14 is at proper angle；Promote grip slipper 14 to sample to be tested end face and be close to top board 1, tighten the fixing locking grip slipper 14 of bung flange 11；Now, sample to be tested end face and base plate 6 lower surface keeping parallelism；Unclamp hands the turn of the screw 5, raise and lift top board 1, take out the grip slipper 14 with sample；Then taken and the testing stand of Smaller load Vickers or digital readout Vicker hardness tester is carried out sample hardness number mensuration, or be put into the enterprising line number value calibrating of metrical instrument workbench.

Claims

1. a sample Vickers hardness test universal fixture in irregular shape includes: top board (1), guide pillar (2), guide pin bushing (3), self-clinching nut (4), hands the turn of the screw (5), base plate (6), workbench (7), vertical screw rod (8), lead (9), universal ball end (10), bung flange (11), concave spherical surface deck (12), transverse screw (13), grip slipper (14), grip block (15)；It is characterized in that: a kind of sample Vickers hardness test universal fixture in irregular shape includes the top board (1) of a level, and top board (1) is connected with guide pillar (2) by the guide pin bushing (3) of surrounding；Guide pin bushing (3) is provided with self-clinching nut (4) and hands the turn of the screw (5)；The bottom of top board (1) is provided with the base plate (6) parallel with top board (1), and the above of base plate (6) is sequentially set with the workbench (7) of activity, vertical screw rod (8), lead (9) and universal ball end (10)；The upper coupling of universal ball end (10) is set with concave spherical surface deck (12), and is fixed by bung flange (11)；Concave spherical surface deck (12) top transverse weld has the grip block (15) of grip slipper (14) and a pair activity, and the bottom of grip block (15) transverse screw (13) internally installed with grip slipper (14) matches and be connected.