CN216955443U - Pneumatic clamp of universal testing machine - Google Patents

Abstract

A pneumatic clamp of a universal testing machine relates to the technical field of pneumatic clamps and comprises a clamp whole, a clamp outer cover and a clamp guide rod, wherein the clamp whole comprises an upper clamp, a lower clamp and a clamp support, the upper clamp/the lower clamp has a larger width compared with the prior art, and the reserved distance between the upper clamp and the lower clamp is increased, so that a sample is clamped more conveniently and quickly, a gasket on the pneumatic clamp is made of polyurethane material to prevent the adhesion of an aluminum foil, the aluminum foil sample is placed into the fixed lower clamp during working, the upper clamp and the lower clamp are adjusted to be on the same straight line, and the universal testing machine is opened to start the tensile test work on the aluminum foil; in summary, the utility model reduces the impact force of air flow on the sample when clamping the sample by increasing the width of the pneumatic clamp and the distance between the upper clamp and the lower clamp, so that the sample is clamped more stably, the cost is lower, and the problems that the size of the pneumatic clamp does not meet the inspection requirement of an aluminum foil and a gasket of the pneumatic clamp is easy to stick the aluminum foil are effectively solved.

Description

Pneumatic clamp of universal testing machine

Technical Field

The utility model relates to the technical field of pneumatic clamps, in particular to a pneumatic clamp of a universal testing machine.

Background

When the tensile property of the finished aluminum foil product is detected, the aluminum foil is very thin, so that the requirements on the verticality and the flatness of the sample clamping are high, if the clamp is not suitable for the aluminum foil, the tensile property result is seriously influenced, deviation is caused from the actual result, and misguidance is caused to the selection and the use of customers. Therefore, the testing machine is equipped with a proper pneumatic clamp, which is an important task for detecting the tensile property of the finished aluminum foil product.

In the correlation technique, the anchor clamps size design that current universal tester configured does not conform to the aluminium foil inspection in-service use requirement, and pneumatic fixture gasket adopts the rubber texture usually, glues the aluminium foil easily, causes the influence to pressing from both sides appearance and final testing result, has both influenced detection efficiency, has influenced the testing result again.

In view of the above-mentioned related technologies, the inventor believes that there are disadvantages that the pneumatic clamp size design does not meet the practical use requirement of aluminum foil inspection, and the pneumatic clamp gasket is easy to stick aluminum foil.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems that the size design of a pneumatic clamp in the prior art does not accord with the actual use requirement of aluminum foil inspection and a gasket of the pneumatic clamp is easy to stick an aluminum foil, the utility model aims to provide the pneumatic clamp of the universal testing machine, and the specific scheme is as follows:

a pneumatic clamp of a universal testing machine comprises a clamp whole body, a clamp outer cover and a clamp guide rod, wherein the clamp guide rod is arranged outside the clamp outer cover and penetrates through the clamp outer cover to be used for controlling the clamp whole body, the clamp outer cover is divided into an upper part and a lower part, the clamp whole body is also divided into an upper part and a lower part which are arranged inside the clamp outer cover, the upper part of the clamp whole body comprises an upper clamp and a clamp support, the lower part of the clamp whole body comprises a lower clamp and a clamp support, the upper clamp and the lower clamp are respectively and fixedly arranged inside the clamp support, a gap is reserved between the upper clamp and the lower clamp, the width of the upper clamp is equal to that of the lower clamp, a buffer gasket is arranged at the relative position of the upper clamp and the lower clamp, and the buffer gasket is a detachable device, and the buffer gasket is a polyurethane gasket, the outer sides of the upper clamp/the lower clamp are respectively provided with an air cylinder, one end of the air cylinder is fixedly connected with the upper clamp/the lower clamp, and the upper clamp/the lower clamp adjusts the opening and closing states of the air cylinder and the clamp guide rod in a matching manner.

Further optimally, the whole lower half part of the clamp is fixedly arranged, and the whole upper half part of the clamp can move up and down under the control of the terminal of the testing machine.

Further optimally, the fixture guide rod is rectangular, the fixture guide rod is made of stainless steel, the two fixture guide rods are arranged, and the fixture guide rods penetrate through the side edge of the fixture outer cover and are located at the free end of the air cylinder.

Further optimally, a cylinder support is arranged outside the cylinder and connected with the cylinder through a bolt.

Further optimally, the pneumatic fixture of the universal testing machine is further provided with two universal rods, and one ends of the two universal rods penetrate through the top and the bottom of the fixture outer cover respectively and are connected with the upper fixture/the lower fixture.

Further optimally, a gap is reserved between the clamp outer cover and the upper clamp and between the clamp outer cover and the lower clamp, and the clamp outer cover and the upper clamp/the lower clamp are fixedly connected through bolts.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the aluminum foil is placed in the middle of the opened lower clamp by tweezers, the lower clamp is in a closed state by operating the air cylinder connected with the lower clamp, so that the aluminum foil and the lower clamp are relatively fixed, at the moment, the upper clamp/the lower clamp are pushed to do position adjustment movement by operating the clamp guide rod, so that the upper clamp and the lower clamp are in a collinear position, and the aluminum foil fracture caused by the dislocation of the upper clamp and the lower clamp is effectively prevented. The air cylinder connected with the upper clamp/the lower clamp starts to work to clamp the upper clamp/the lower clamp, so that the upper clamp performs tensile test work on the aluminum foil; in summary, the utility model reduces the impact force of air flow on a sample when the sample is clamped by ensuring the width of the pneumatic clamp and presetting a certain distance between the upper clamp and the lower clamp, so that the sample is clamped more stably, the upper clamp and the lower clamp are more vertical, the structure is simple, the cost is lower, and the problems that the size design of the pneumatic clamp does not accord with the actual use requirement of aluminum foil inspection and the gasket of the pneumatic clamp is easy to stick the aluminum foil are effectively solved;

(2) the lower half part of the whole clamp is arranged in a fixed state, and the upper half part of the whole clamp can move up and down under the control of the terminal of the testing machine, so that the lower clamp can be kept in a stable state, and the test failure caused by the instability of the lower clamp when the upper clamp is used for stretching the aluminum foil is prevented;

(3) the clamp guide rod is arranged to be rectangular, so that the clamp can be prevented from rotating and affecting the stretching effect, the clamp guide rod is arranged to be made of stainless steel, the service life of the clamp guide rod is effectively prevented from being shortened due to oxidation corrosion, the clamp guide rod is arranged to be fixedly connected with the free end of the air cylinder, and the air cylinder can be controlled by controlling the clamp guide rod, so that the clamp is pushed to move forwards and backwards;

(4) the cylinder support is arranged, so that the protection effect on the cylinder is realized;

(5) wear to establish the universal rod respectively through the top at the anchor clamps dustcoat and bottom, and set the universal rod to be connected with the testing machine to, leave the space between anchor clamps dustcoat and last anchor clamps and the anchor clamps down, the direction of anchor clamps is changed to the motion that conveniently drives the universal rod through manipulation testing machine.

Drawings

FIG. 1 is an overall schematic diagram of an embodiment of the present invention;

reference numerals are as follows: 1. integrating the clamp; 11. an upper clamp; 12. a lower clamp; 13. a clamp bracket; 2. a clamp housing; 3. a jig guide bar; 4. a cushion pad; 5. a cylinder; 6. a cylinder support; 7. a universal bar.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

As shown in figure 1, a universal tester air jig, including the whole 1 of anchor clamps, anchor clamps dustcoat 2 and anchor clamps guide bar 3, anchor clamps dustcoat 2 sets to upper and lower two parts, anchor clamps guide bar 3 has two to set up respectively in the upper and lower part of anchor clamps dustcoat 2 outside and wear to locate anchor clamps dustcoat 2 and be used for controlling the whole 1 of anchor clamps, anchor clamps dustcoat 2 plays the guard action to whole 1 of anchor clamps, the whole 1 of anchor clamps divide into upper and lower two parts respectively and set up inside anchor clamps dustcoat 2 equally, and the whole 1 of anchor clamps is connected with the aluminium foil that needs to do tensile experiment, carry out direct tensile operation to the aluminium foil.

Anchor clamps guide bar 3 sets to the rectangle, be used for preventing anchor clamps from rotating by oneself, influence tensile effect, anchor clamps guide bar 3 adopts stainless steel, effectively prevent to shorten because of the anchor clamps guide bar 3 life-span that the oxidation corrosion leads to, and anchor clamps guide bar 3 is provided with two, wear to establish the side of the upper and lower two parts of anchor clamps dustcoat 2 respectively, and two anchor clamps guide bar 3 are located the homonymy, two anchor clamps guide bar 3 and the free end fixed connection who is located same horizontal position's cylinder 5, realize the control to cylinder 5 through controlling anchor clamps guide bar 3, thereby promote anchor clamps and move backward forward.

The upper half part of the clamp body 1 comprises an upper clamp 11 and a clamp support 13, the lower half part of the clamp body 1 comprises a lower clamp 12 and a clamp support 13, the lower half part of the clamp body 1 is fixedly arranged and used for fixing one end of an aluminum foil, the upper half part of the clamp body 1 can move up and down to facilitate the stretching work of the aluminum foil, a gap is reserved between the upper clamp 11 and the lower clamp 12, the upper clamp 11 and the lower clamp 12 are equal in width, the upper clamp 11 and the lower clamp 12 are wider than the existing clamp, the impact force of air flow on an aluminum foil sample placed in the upper clamp 11/the lower clamp 12 can be effectively improved, the pneumatic clamp is more stable when clamping the sample, meanwhile, a gap is reserved between the upper clamp 11 and the lower clamp 12, the upper clamp 11/the lower clamp 12 form a reserved space, and a worker can clamp the sample more conveniently, Swift, go up and be provided with buffer spacer 4 on the relative position of anchor clamps 11 and lower anchor clamps 12, buffer spacer 4 is detachable device, and buffer spacer 4 adopts the polyurethane gasket, effectively prevents to go up anchor clamps 11/lower anchor clamps 12 adhesion to the aluminium foil sample when centre gripping aluminium foil sample to damage the sample.

The outer sides of the upper half part and the lower half part of the clamp body 1 are respectively provided with a cylinder 5, the cylinders 5 are fixedly arranged on a cylinder support 6, the other ends of the cylinders 5 are fixedly connected with an upper clamp 11/a lower clamp 12, and the upper clamp 11/the lower clamp 12 can adjust the opening and closing states of the clamps through the cylinders 5.

The aluminum foil is placed in the middle of the opened lower clamp 12 by using tweezers, the lower clamp 12 is in a closed state by operating the cylinder 5 connected with the lower clamp 12, so that the aluminum foil and the lower clamp 12 are relatively fixed, at the moment, the upper clamp 11/the lower clamp 12 are pushed to perform position adjustment movement by operating the clamp guide rod 3, so that the upper clamp 11 and the lower clamp 12 are in a collinear position, the aluminum foil breakage caused by dislocation of the upper clamp 11 and the lower clamp 12 is effectively prevented, when the aluminum foil is positioned in the middle of the upper clamp 11/the lower clamp 12, the cylinder 5 connected with the upper clamp 11/the lower clamp 12 starts to work, so that the upper clamp 11/the lower clamp 12 is clamped, and the upper clamp 11 performs tensile test work on the aluminum foil.

Universal tester air jig still is provided with universal rod 7 to universal rod 7 is provided with two, and the top that gets into anchor clamps dustcoat 2 is worn to establish respectively by the one end of two universal rods 7 and the bottom is connected with the top of last anchor clamps 11/the bottom of anchor clamps 12 down, and leaves the space between anchor clamps dustcoat 2 and last anchor clamps 11 and the anchor clamps 12 down, and the direction of anchor clamps is changed in the motion that conveniently drives universal rod 7 through handling the testing machine.

The working contents of the utility model are as follows:

adjust upper clamp 11/lower clamp 12 to open the state, the aluminium foil that the staff will need to do the tensile experiment with tweezers is put into the intermediate position of lower clamp 12, the anchor clamps guide bar 3 of adjusting again and being in same horizontal position with lower clamp 12 makes the cylinder 5 work of being connected with anchor clamps guide bar 3, make lower clamp 12 be the closure state, fix the aluminium foil sample, the anchor clamps guide bar 3 of anchor clamps 11 side is gone up in the adjustment, adjust upper clamp 11 to be in same straight line with lower clamp 12, adjust cylinder 5, make upper clamp 11 be the closure state, at this moment, the staff starts universal tester and carries out tensile test work to the aluminium foil sample on the pneumatic fixture.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims (6)

1. The utility model provides a universal testing machine air jig, its characterized in that, universal testing machine air jig includes the whole (1) of anchor clamps, anchor clamps dustcoat (2) and anchor clamps guide bar (3), anchor clamps guide bar (3) set up the outside of anchor clamps dustcoat (2) is worn to locate anchor clamps dustcoat (2) are used for controlling the whole (1) of anchor clamps, anchor clamps dustcoat (2) divide into upper and lower two parts, the whole (1) of anchor clamps divide into upper and lower two parts equally and set up inside anchor clamps dustcoat (2), the first half of the whole (1) of anchor clamps includes anchor clamps (11) and anchor clamps support (13), the latter half of the whole (1) of anchor clamps includes anchor clamps (12) and anchor clamps support (13) down, upper clamp (11) with anchor clamps (12) respectively fixed mounting be in inside anchor clamps support (13), upper clamp (11) with leave the clearance down between anchor clamps (12), go up anchor clamps (11) with the width of anchor clamps (12) equals down, go up anchor clamps (11) with be provided with buffer spacer (4) on the relative position of anchor clamps (12) down, buffer spacer (4) are detachable device, just buffer spacer (4) adopt the polyurethane gasket, the outside of going up anchor clamps (11)/anchor clamps (12) down all is provided with cylinder (5), the one end and last anchor clamps (11)/lower anchor clamps (12) fixed connection of cylinder (5), and go up anchor clamps (11)/lower anchor clamps (12) pass through the opening and the closed condition of cylinder (5) and the cooperation adjustment self of anchor clamps guide bar (3).

2. The pneumatic clamp of the universal testing machine as claimed in claim 1, wherein the lower half part of the clamp whole body (1) is fixedly arranged, and the upper half part of the clamp whole body (1) can move up and down under the control of the testing machine terminal.

3. The pneumatic clamp of the universal testing machine as claimed in claim 1, wherein the clamp guide rods (3) are rectangular, the clamp guide rods (3) are made of stainless steel, two clamp guide rods (3) are arranged, and the two clamp guide rods (3) penetrate through the side edge of the clamp housing (2) and are fixedly connected with the free end of the cylinder (5).

4. The pneumatic clamp of the universal testing machine as claimed in claim 3, characterized in that a cylinder support (6) is arranged outside the cylinder (5), and the cylinder (5) support is connected with the cylinder (5) through a bolt.

5. The pneumatic clamp of the universal testing machine as claimed in claim 1, further comprising two universal rods (7), wherein one end of each of the two universal rods (7) penetrates into the top and the bottom of the clamp housing (2) to be connected with the upper clamp (11)/the lower clamp (12).

6. The pneumatic clamp of the universal testing machine as claimed in claim 1, characterized in that a gap is left between the clamp housing (2) and the upper clamp (11) and the lower clamp (12), and the clamp housing (2) and the upper clamp (11)/the lower clamp (12) are fixedly connected through bolts.

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