CN1092523A

CN1092523A - Clamper

Info

Publication number: CN1092523A
Application number: CN 93112447
Authority: CN
Inventors: 张志坚
Original assignee: TAICANG TEXTILE INSTRUMENT FACTORY JIANGSU PROV
Current assignee: TAICANG TEXTILE INSTRUMENT FACTORY JIANGSU PROV
Priority date: 1993-05-29
Filing date: 1993-05-29
Publication date: 1994-09-21

Abstract

When the present invention relates to a kind of brute force in the special filament material of testing 0.01 millimeter, elongation, tested test material must be clamped, stretch, so that measure the clamper of its numerical value by strength tester (machine).Requirement according to test divides upward clamper, lower gripper is characterized in that 2 that link to each other with upper and lower two gripper brackets, as can to make measured material stress point and adds the clamper hold-down mechanism of being made up of briquetting 3, compressing tablet 4, cylinder guide finger 5 and screw rod 6 that the force is in same position.And paste one on the surface of briquetting 3 and have certain degree of hardness, certain elasticity and wear-resisting compressing tablet.Dynamics and force that this clamper is folded are reasonable, can make tested metal and nonmetal special filament clamped, and do not make test material folder bad or skid, thereby test out correct brute force and elongation numerical value.

Description

Clamper

The present invention relates to a kind of brute force at test material, when elongation, to the thin metal of spy, nonmetal wire clamps so that measure the clamper of its numerical value by the device for measuring force of strength tester (machine).

In the brute force of the special filament of testing 0.01 millimeter, when extending, tested test material must be clamped, stretch, to measure its numerical value.In test process, require clamped test material non-slip in clamper (material at clamped position can not produce slippage in being pressed from both sides the position), do not crush (material at clamped position can not rupture in being pressed from both sides the position), aptitude test goes out correct data.

Take a broad view of the special filament strength testers of various tests (or machine), as YG161 hydraulic type strength tester, TS1102 electronics strength tester, YGOO1A electronics strength tester, YGOO3A electronics strength tester etc., employed clamper, though different, and the structure of its clamp system and afterburning mode all are to clamp tested material in a side.This structure and afterburning mode are the test materials that will be pressed from both sides, be delivered to (shown in Fig. 7 force diagram) on the tested material by the arm of force, force part and tested storeroom form acute angle and intersect, therefore be difficult to make the effect of two clamping face keeping parallelism clampings, thereby cause tested special filament material to be not easy to clamp and easily skidding.In addition, two clamping faces are made by stainless steel or other metal material, when being used to test nonmetal special fibre material such as natural fiber, man-made fiber, glass fibre, cause two clamping face materials are than tested material hardness height, operating personnel worry folder and tightly and firmly do not clamp measured material when operating in addition, will cause tested material clip bad, promptly material ruptures in folder mouth or clamping face.Yet firmly slightly little, folder is not tight again, skids, and causes ill effects such as bringing operating difficulties, test data instability in test job.

The artificial solution problem of skidding is arranged, two clamping faces with grinding, carry out attrition process two planes more by hand with abrasive sand, but because above-mentioned structure and afterburning mode, clamp system add the force and stress point has an arm of force, acutangulate crossingly, so it is very flat to be difficult to reach two clamping faces contacts, actual effect is relatively poor.Also there is in clamping face, tape paper, plastic or other material of people to solve the problem of crushing, since as a same reason above-mentioned, though can not crush tested material, skidding is even more serious.

The purpose of this invention is to provide a kind of new clamper structure and afterburning mode, the stress point design that adds force and tested material that is about to clamp system is on same position (shown in Fig. 8 force diagram), change an original side reinforcing by the arm of force to the stressed acute angle intersection that forms of tested material, skid and crush phenomenon with thorough solution.

An original side clamps the sample mode to design proposal of the present invention for the special filament that adapts to various materials changes.Thereby designed the cramping body of forming by holder 1 and support 2, by briquetting 3, compressing tablet 4, two clamper hold-down mechanisms that cylinder guide finger 5, screw rod 6 and screw 7 are formed.The clamping face of forming because of stainless steel material easily crushes special filament material, pastes one on the surface of briquetting 3 and has certain degree of hardness, good rebound resilience, higher coefficient of friction and anti abrasive polyurethane material compressing tablet.This compressing tablet has bigger curable grip when stretching special thin metal and nonmetal wire.

Clamper front view on Fig. 1

Clamper vertical view on Fig. 2

Clamper left view on Fig. 3

Fig. 4 lower gripper front view

Fig. 5 lower gripper vertical view

Fig. 6 lower gripper left view

Legend: 1, holder (going up lower gripper holder among clamper holder and Fig. 4 among Fig. 1); 2, support; 3, briquetting; 4, compressing tablet; 5, cylinder guide finger; 6, screw rod; 7, screw.

Now in conjunction with the accompanying drawings embodiments of the invention are described below:

The present invention is by hanging on the last clamper (Fig. 1,2,3) on the instrument and being fixed on the slide block of instrument elevating mechanism so that the lower gripper (Fig. 4,5,6) that various special filaments are stretched is formed.The structure of two clampers is basic identical, the clamper hold-down mechanism of being made up of holder 1, support 2, briquetting 3, compressing tablet 4, cylinder guide finger 5, screw rod 6 and screw 7.But because of the residing not same-action in its position, the shape of its holder 1 has different requirements.Last clamper its holder 1 shape as can be seen from Figure 1 is longer, and the outstanding elongated portion in top can be found out from Fig. 3 and has suppending hole; One side of flattened medial rectangular segment has the long waist shaped groove, is that clamper partly is the balance needs of nature plumbness in the requirement, and the weight that can utilize this long waist shaped groove to repair balance and defined for when the clamped laggard shape of test material stretches; The bottom is visible as the base part that links to each other with support 2 from Fig. 2.The holder 1 of lower gripper can be found out from Fig. 4,6, and it has a centre to establish the long waist shaped fixed orifice to link to each other with support 2 with the pedestal (Fig. 5) the same with last clamper holder 1 lower base part.The support 2 of two clampers is all L-shaped, and the minor face of " L " shape slightly links to each other with holder, works the long limit effect of supporting, and long limit than minor face more carefully and is provided with screw, and screw two sides are provided with the hole of passing through for cylindrical guide pin 5.By the screw rod 6 in support 2 screws, one end and knob riveted joint, the other end links to each other with briquetting 3, for guaranteeing that briquetting 3 can clamp with the rotation of screw rod 6 or unclamp, being provided with two screws 7 at the connection position of screw rod 6 and briquetting 3 snaps in the groove at screw rod 6 tops, two cylinder guide fingers 5 are positioned on the same center line of screw rod 6 two sides, shank one end links to each other with briquetting 3 close-fittings, the hole of the other end and support 2 movingly, and can in the hole, lead with screw rod 6 motions, guarantee the parallel mobile of briquetting 3, the stressed center at briquetting 3 of tested sample is stressed.Compressing tablet 4 is pasted on briquetting 3 surfaces, its material is a kind of have certain degree of hardness, necessarily elasticity, and wear-resisting polyurethane material, can be so that tested metal and nonmetal special filament are clamped, and do not make test material folder bad or skid, thereby test out desirable brute force and elongation numerical value.

During use, use clamper is asked for required test material in tested metal or nonmetallic special filament a end, measured material is clamped in the pedestal position with compressing tablet 4 and holder 1, and last clamper is hung on the hook of Instrument sensor.The other end with test material is clamped in the lower gripper that is fixed in elevating mechanism again.Start instrument, the stretching that slowly descends of instrument elevating mechanism can be carried out the every test job to special filament material.Because to be designed to the center stressed for this clamper, compressing tablet 4 promptly has consistency and elasticity, and wear-resisting, thus guaranteed the correctness of repeatedly repeated test data, and in test process, do not produce skidding and crushing phenomenon of tested material, its superiority is very tangible.

Claims

1, the present invention is a kind of in test material brute force, when elongation, to the thin metal of spy, nonmetal wire clamps so that measure the clamper of its numerical value by the side force device of strength tester (machine).On this instrument (machine) device by difform upper and lower two clampers of forming by holder 1 and support 2, it is characterized in that 2 that link to each other with upper and lower two gripper brackets, as can to make measured material stress point and add the force and be in the clamper hold-down mechanism of forming by briquetting 3, compressing tablet 4, cylinder guide finger 5, screw rod 6 and screw 7 on the same position, and hang on the instrument, the balance requirement is arranged, and can carry out the last clamper holder 1 of the long waist shaped groove of weight correction.

2, two clampers according to claim 1, the feature of the cylinder guide finger 5 of its hold-down mechanism is when turn screw rod 6 moves briquetting 3, can make briquetting 3 and compressing tablet 4 do to be in to carry out parallel mobile two sides that lay respectively at screw rod on the support 2 on the same straight line, and be fixed on two cylindrical guide pin 5 on the briquetting 3.

3, two clampers according to claim 1, the feature of its hold-down mechanism screw rod 6 are for guaranteeing that briquetting 3 can clamp with the rotation of screw rod 6 or unclamp, being provided with two screws 7 at the connection position of screw rod 6 and briquetting 3 and snapping in the groove at screw rod 6 tops.

4, two clampers according to claim 1, in its hold-down mechanism the feature of compressing tablet 4 be pasted on thickness on the pressure surface of briquetting 3 0.3～0.8 millimeter, have a compressing tablet 4 of certain degree of hardness, good rebound resilience, higher coefficient of friction and wear-resisting polyurethane material.