CN213181007U

CN213181007U - Auxiliary clamp for tensile test of material mechanics testing machine

Info

Publication number: CN213181007U
Application number: CN202021632126.8U
Authority: CN
Inventors: 王云飞
Original assignee: Taiyuan University of Science and Technology
Current assignee: Taiyuan University of Science and Technology
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-05-11
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to an anchor clamps technical field for the testing machine, and disclose material mechanics testing machine auxiliary fixture for tensile test, including the safety cover, the bottom fixedly connected with test bench of safety cover inner chamber, the inside sliding connection of test bench has quantity to be a plurality of drawers, the equal fixedly connected with testing machine body in both ends about the test bench top, two the equal transmission in one side that the testing machine body is relative is connected with the connecting rod, two the equal fixedly connected with mounting in one side that the connecting rod is relative, fixedly connected with guide rail between the inboard upper and lower both ends of mounting. This supplementary anchor clamps for material mechanics testing machine tensile test converts the removal power of splint into through the flexible power with the cylinder to reach the stable purpose of centre gripping, and need not manual centre gripping, labour saving and time saving, sample during the centre gripping can not produce the dislocation simultaneously, has ensured test data's accuracy, facilitates the use, is applicable to various circumstances.

Description

Auxiliary clamp for tensile test of material mechanics testing machine

Technical Field

The utility model relates to an anchor clamps technical field for the testing machine specifically is a material mechanics testing machine auxiliary fixture for tensile test.

Background

The jig is a device for fixing a processing object to a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig, and a device for quickly, conveniently and safely mounting a workpiece in any process in a process is called a jig in a broad sense.

The clamp generally comprises a positioning element, a clamping device, a tool setting guide element, an indexing device, a connecting element, a clamp body and the like, the conventional auxiliary clamp for the tensile test of the material mechanics testing machine on the market at present has the defect of unstable clamping, when the auxiliary clamp is used, the firm and stable clamping of a sample is the key for smoothly completing the tensile test, but the clamping opening of the conventional material mechanics testing machine cannot obtain an ideal clamping effect when clamped, and the sample is easy to generate dislocation in the clamping opening in the testing process to cause inaccurate test data, so the auxiliary clamp for the tensile test of the material mechanics testing machine is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a material mechanics testing machine auxiliary fixture for tensile test possesses advantages such as the centre gripping is stable, has solved when using, and firmly and stably centre gripping sample is the key of accomplishing tensile test smoothly, but the mouth that presss from both sides of current material mechanics testing machine often can not obtain the centre gripping effect of ideal when the centre gripping, and in the test process, the sample produces the dislocation easily in pressing from both sides the mouth, leads to the unsafe problem of test data.

(II) technical scheme

For the purpose that realizes the stable of above-mentioned centre gripping, the utility model provides a following technical scheme: the auxiliary clamp for the tensile test of the material mechanics testing machine comprises a protective cover, wherein the bottom of an inner cavity of the protective cover is fixedly connected with a testing table, a plurality of drawers are slidably connected inside the testing table, the left end and the right end of the top of the testing table are fixedly connected with testing machine bodies, one opposite side of the two testing machine bodies is in transmission connection with connecting rods, one opposite side of the two connecting rods is fixedly connected with a fixing part, a guide rail is fixedly connected between the upper end and the lower end of the inner side of the fixing part, the upper end and the lower end of the outer surface of the guide rail are respectively in sliding connection with a sliding block, the opposite side of the left group of sliding blocks and the right group of sliding blocks is respectively and fixedly connected with a clamping plate, the inner side of the clamping plate is in threaded, the telescopic shaft fixedly connected with pinion rack of cylinder, the top fixedly connected with stabilizer bar of connecting rod, the top fixedly connected with slide bar of pinion rack, two the equal fixedly connected with bracing piece in bottom of the relative one side of stabilizer bar, there is the door that runs from opposite directions in the front of safety cover through hinge swing joint.

Preferably, the protective cover is a rectangle with a hollow interior and an opening on the front face, and the split door is a transparent split door.

Preferably, the front of the drawer is fixedly connected with a pull rod, the outer surface of the pull rod is sleeved with an anti-slip sleeve, and the front of the drawer is pasted with a mark.

Preferably, one side of each group opposite to the clamping plate is fixedly connected with a damping pad, and the damping pads are wavy.

Preferably, the upper end and the lower end of the outer surface of the screw rod are fixedly connected with threads in opposite directions, and the inner side of the clamping plate is provided with a thread groove matched with the threads on the outer surface of the screw rod.

Preferably, the guide rail is a square guide rail, and a square hole matched with the guide rail is formed in the slide block.

(III) advantageous effects

Compared with the prior art, the utility model provides a material mechanics testing machine auxiliary fixture for tensile test possesses following beneficial effect:

1. the auxiliary clamp for the tensile test of the material mechanics testing machine controls the working of the air cylinders through the external controller, the telescopic shafts of the two air cylinders move in opposite directions and drive the two toothed plates to move in opposite directions, the slide bar and the T-shaped groove ensure the stability of the toothed plates when moving, the gears are rotated due to the fact that the gears are meshed with the front faces of the toothed plates, the support rods are arranged to play a role of supporting the screw rods, the upper end and the lower end of the outer surface of the screw rods are fixedly connected with threads in opposite directions, the inner sides of the clamping plates are provided with thread grooves matched with the threads on the outer surface of the screw rods, the guide rails and the slide blocks limit the clamping plates to move circumferentially along with the screw rods, so that the two clamping plates move to opposite sides and stably clamp the test material, the device converts the telescopic force of the air cylinders into the moving force of the clamping plates, labour saving and time saving, the sample when the centre gripping can not produce the dislocation simultaneously, has ensured test data's accuracy, facilitates the use, is applicable to various condition.

2. This supplementary anchor clamps for material mechanics testing machine tensile test, through placing the testing machine body in the safety cover, avoided the sample at experimental in-process, because the tensile force is too big, and make the sample appear breaking up the condition that the mistake hurt staff, and open the door through setting up, open the door for transparent to open the door, the condition when the staff of being convenient for observe the experiment, through setting up the drawer, the staff of being convenient for puts the test sample in order to the drawer, the device whole security is good, easily observe experimental process simultaneously, conveniently put the test sample in order, easy user's use.

Drawings

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

FIG. 2 is an external view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the device comprises a protective cover 1, a test bed 2, a drawer 3, a testing machine body 4, a connecting rod 5, a fixing part 6, a guide rail 7, a sliding block 8, a clamping plate 9, a screw rod 10, a gear 11, a bracket 12, an air cylinder 13, a toothed plate 14, a stabilizer bar 15, a sliding rod 16, a supporting rod 17 and a split door 18.

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.

Referring to fig. 1-3, the auxiliary clamp for the tensile test of the material mechanics testing machine comprises a protective cover 1, wherein the protective cover 1 is a rectangle which is hollow inside and is opened on the front side, the bottom of the inner cavity of the protective cover 1 is fixedly connected with a test bed 2, a plurality of drawers 3 are slidably connected inside the test bed 2, the front sides of the drawers 3 are fixedly connected with a pull rod, the outer surface of the pull rod is sleeved with an anti-slip sleeve, the front side of the drawer 3 is pasted with a mark, the left end and the right end of the top of the test bed 2 are fixedly connected with a testing machine body 4, the opposite sides of the two testing machine bodies 4 are respectively connected with a connecting rod 5 in a transmission manner, the opposite sides of the two connecting rods 5 are respectively fixedly connected with a fixing part 6, a guide rail 7 is fixedly connected between the upper end and the lower end of the inner side of the fixing part 6, the opposite sides of the left and right groups of sliders 8 are fixedly connected with clamping plates 9, the opposite side of each group of clamping plates 9 is fixedly connected with a damping pad in a wave shape, the inner side of each clamping plate 9 is in threaded connection with a screw rod 10, the upper end and the lower end of the outer surface of each screw rod 10 are fixedly connected with threads in opposite directions, the inner side of each clamping plate 9 is provided with a thread groove matched with the threads on the outer surface of each screw rod 10, the top of each screw rod 10 is fixedly connected with a gear 11, the top of each connecting rod 5 is fixedly connected with a support 12, the top of each support 12 is fixedly connected with a cylinder 13, the type of each cylinder 13 can be SC80-25-S, a telescopic shaft of each cylinder 13 is fixedly connected with a toothed plate 14, the front of each toothed plate 14 is meshed with the back of each gear 11, the top of each connecting rod 5 is fixedly connected with a stabilizer, the top of the sliding rod 16 penetrates and extends into the stabilizer bars 15, the bottom of one side of each of the two stabilizer bars 15 is fixedly connected with a support rod 17, the screw 10 is positioned inside the support rod 17 and movably connected with the support rod 17 through a bearing, the front of the protective cover 1 is movably connected with a side-by-side door 18 through a hinge, the side-by-side door 18 is a transparent side-by-side door, the air cylinder 13 is controlled by an external controller to work, the telescopic shafts of the two air cylinders 13 move in opposite directions and drive the two toothed plates 14 to move in opposite directions, the sliding rod 16 and the T-shaped groove ensure the stability of the toothed plates 14 during movement, the toothed plates 14 are meshed with the gear 11 on the front side, so that the gear 11 rotates, the support rod 17 is arranged to support the screw 10, the upper end and the lower end of the outer surface of the screw 10 are fixedly connected with threads in opposite directions, and, the guide rail 7 and the slide block 8 limit the clamp plates 9 to do circular motion along with the screw rod 10, so that the two clamp plates 9 move to one opposite side and stably clamp a test material, the device converts the telescopic force of the air cylinder 13 into the moving force of the clamp plates 9, the purpose of stable clamping is achieved, manual clamping is not needed, time and labor are saved, meanwhile, the sample is not subjected to dislocation during clamping, the accuracy of test data is guaranteed, the device is convenient to use and suitable for various conditions, the situation that the sample is mistakenly damaged to workers due to overlarge stretching force in the test process is avoided by placing the testing machine body 4 into the protective cover 1, the situation that the workers are mistakenly broken is avoided, the split door 18 is a transparent split door by arranging the split door 18, the workers can observe the condition during the test conveniently, and the workers can conveniently place the test sample into the drawer 3 by arranging the drawer 3, the device has good overall safety, is easy to observe the test process, is convenient to place test samples in order, and is easy for users to use.

To sum up, the auxiliary clamp for the tensile test of the material mechanics testing machine controls the operation of the air cylinders 13 through the external controller, the telescopic shafts of the two air cylinders 13 move in opposite directions and drive the two toothed plates 14 to move in opposite directions, the sliding rods 16 and the T-shaped grooves ensure the stability of the toothed plates 14 when moving, as the toothed plates 14 are meshed with the gears 11 on the front sides, the gears 11 rotate, the supporting rods 17 are arranged to play a role of supporting the screw rods 10, the upper end and the lower end of the outer surface of the screw rods 10 are fixedly connected with threads in opposite directions, the inner sides of the clamping plates 9 are provided with thread grooves matched with the threads on the outer surface of the screw rods 10, the guide rails 7 and the sliding blocks 8 limit the clamping plates 9 to move along with the screw rods 10 in a circular manner, so that the two clamping plates 9 move to opposite sides and stably clamp the test material, and the device converts the telescopic force of the, therefore, the purpose of stable clamping is achieved, manual clamping is not needed, time and labor are saved, a sample cannot be dislocated during clamping, the accuracy of test data is guaranteed, the use is convenient, the testing device is suitable for various conditions, the situation that a worker is mistakenly injured due to breaking of the sample due to overlarge tensile force in the test process of the sample is avoided by placing the testing machine body 4 into the protective cover 1, the worker can conveniently observe the situation during the test by arranging the split door 18 and the split door 18 which is transparent, the drawer 3 is arranged, the worker can conveniently place the test sample into the drawer 3, the device has good overall safety, the test process is easy to observe, the test sample is conveniently placed, the use by a user is facilitated, the problem that the situation that the tensile test is successfully completed during using the device is solved, the problem that the clamping opening of the existing material mechanics testing machine cannot obtain an ideal clamping effect during clamping is often solved, during the test, the sample is easy to generate dislocation in the clamping opening, so that the problem of inaccurate test data is caused.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. Auxiliary clamp for tensile test of material mechanics testing machine, including safety cover (1), its characterized in that: the bottom of the inner cavity of the protective cover (1) is fixedly connected with a test bed (2), the inner part of the test bed (2) is connected with a plurality of drawers (3) in quantity in a sliding manner, the left and right ends of the top of the test bed (2) are fixedly connected with testing machine bodies (4), two opposite sides of the testing machine bodies (4) are connected with connecting rods (5) in a transmission manner, two opposite sides of the connecting rods (5) are fixedly connected with fixing pieces (6), a guide rail (7) is fixedly connected between the upper end and the lower end of the inner side of each fixing piece (6), the upper end and the lower end of the outer surface of each guide rail (7) are connected with sliders (8) in a sliding manner, the left and right sides of two groups of opposite sides of the sliders (8) are fixedly connected with clamping plates (9), the inner side of each clamping plate (9) is, the top fixedly connected with support (12) of connecting rod (5), top fixedly connected with cylinder (13) of support (12), telescopic shaft fixedly connected with pinion rack (14) of cylinder (13), top fixedly connected with stabilizer bar (15) of connecting rod (5), top fixedly connected with slide bar (16) of pinion rack (14), two equal fixedly connected with bracing piece (17) in the bottom of the relative one side of stabilizer bar (15), there is door (18) to the front of safety cover (1) through hinge swing joint.

2. The auxiliary clamp for the tensile test of the material mechanics testing machine according to claim 1, characterized in that: the protective cover (1) is a rectangle with a hollow interior and an opening on the front side, and the split door (18) is a transparent split door.

3. The auxiliary clamp for the tensile test of the material mechanics testing machine according to claim 1, characterized in that: the front of the drawer (3) is fixedly connected with a pull rod, the outer surface of the pull rod is sleeved with an anti-slip sleeve, and the front of the drawer (3) is pasted with a mark.

4. The auxiliary clamp for the tensile test of the material mechanics testing machine according to claim 1, characterized in that: every group the equal fixedly connected with damping pad in splint (9) relative one side, and the damping pad is the wave.

5. The auxiliary clamp for the tensile test of the material mechanics testing machine according to claim 1, characterized in that: the upper end and the lower end of the outer surface of the screw rod (10) are fixedly connected with threads in opposite directions, and a thread groove matched with the threads on the outer surface of the screw rod (10) is formed in the inner side of the clamping plate (9).

6. The auxiliary clamp for the tensile test of the material mechanics testing machine according to claim 1, characterized in that: the guide rail (7) is a square guide rail, and a square hole matched with the guide rail (7) is formed in the slide block (8).