CN218994960U

CN218994960U - Clamp for hydraulic tension testing machine

Info

Publication number: CN218994960U
Application number: CN202320167864.7U
Authority: CN
Inventors: 张新; 王苗苗
Original assignee: Yangzhou Saisi Testing Equipment Co ltd
Current assignee: Yangzhou Saisi Testing Equipment Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-05-09
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a clamp for a hydraulic tension testing machine, which comprises a pair of supporting blocks, wherein first sliding grooves are symmetrically arranged on the inner walls of the left side and the right side of the supporting blocks, second sliding grooves are symmetrically arranged on the inner walls of the front side and the rear side of the supporting blocks, the first sliding grooves are positioned between the second sliding grooves on the two sides, the inner walls of the first sliding grooves are connected with clamping blocks through reset mechanisms and are used for driving the two clamping blocks to move leftwards or rightwards, and a power mechanism movably connected with the inner walls of the clamping blocks is arranged at the top of the supporting blocks and is used for driving the two clamping blocks to move upwards or downwards simultaneously. According to the utility model, the mounting box, the motor, the power block, the supporting block, the clamping blocks and the first sliding cylinder are arranged, so that the power block drives the clamping blocks to synchronously move upwards or downwards through the first groove, only one motor is needed to be used as the power of the motor, a plurality of hydraulic cylinders are not needed to be used as the power, and the control of the synchronous opening or closing of the left clamping block and the right clamping block is facilitated, so that a test article is clamped and stabilized rapidly.

Description

Clamp for hydraulic tension testing machine

Technical Field

The utility model relates to the technical field of hydraulic tension testing machines, in particular to a clamp for a hydraulic tension testing machine.

Background

The hydraulic tension tester is used for carrying out mechanical stress application for mechanical property tests such as static load, stretching, compression, bending, shearing, tearing, stripping and the like on various materials.

The hydraulic tension tester is suitable for various physical and mechanical property tests of materials such as plastic films, rubber and the like, is developed for the materials, and is an indispensable detection device for physical property tests, teaching researches, quality control and the like. A standard hydraulic tension tester is provided with two clamps, the first clamp is fixed at the bottom of the tester through bolts, the second clamp is fixed on the telescopic end of a hydraulic cylinder at the top of the tester through bolts, and the two clamps are fixed between the same vertical straight line. The fixture of hydraulic tension testing machine is the important component part of machine, and two fixtures are a set of mutually supporting, all have the gripper jaw of two symmetry settings on every anchor clamps, drive two gripper jaws through power device and close or open simultaneously, and different materials need different anchor clamps, purchase the machine and need customize multiple anchor clamps, and the cost is higher, and improper anchor clamps can deepen the test article and break, can lead to the test article to drop to influence the data that the test obtained. In the test process, two ends of a test article are respectively clamped by using two clamps, the bottom end of the test article is fixed by the first clamp, and the second clamp is pulled upwards by contracting the hydraulic cylinder, so that the top end of the test article is pulled upwards by the second clamp, and the test article is stretched.

However, the existing clamp for the hydraulic tension testing machine can provide power for the clamping claws only by using a plurality of hydraulic cylinders, and is difficult to control the synchronous operation of the hydraulic cylinders, and the left clamping block and the right clamping block synchronously operate, so that a test article cannot be clamped and stabilized rapidly.

Disclosure of Invention

The utility model aims to provide a clamp for a hydraulic tension tester, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a hydraulic pressure tensile testing machine anchor clamps, includes the supporting shoe, two the supporting shoe is a pair of, supporting shoe left and right sides inner wall symmetry is equipped with spout one, both sides inner wall symmetry is equipped with spout two around the supporting shoe, spout one is located both sides between spout two, spout one inner wall is connected with the grip block through canceling release mechanical system for drive two grip blocks and remove left or right, the supporting shoe top be equipped with grip block inner wall swing joint's power unit for drive two grip blocks and upwards or move down simultaneously, power unit includes lead screw, mounting box, motor and power block, the grip block inner wall is equipped with recess one and recess two that are linked together, the power block top pass through stopper with spout one top sliding connection for avoid the power block to rotate, realize the oscilaltion of grip block, the adjustment tank inner wall activity of grip block bottom is equipped with adjustment mechanism.

Further, the screw rod is rotationally arranged at the top of the supporting block, the motor is arranged on the inner wall of the installation box at the top of the supporting block, an output shaft of the motor is connected with the top end of the screw rod, the power block is slidably arranged at the bottom end of the screw rod, and a screw rod nut matched with the screw rod is arranged on the inner wall of the power block.

Further, the power block is in sliding connection with the first groove, the outer wall of the bottom of the screw rod is in rotary connection with the second groove, a plurality of mounting holes are formed in the top of the mounting box, and the first sliding grooves on the left side and the right side form a funnel shape.

Further, adjustment mechanism includes looks adaptation locating piece one and locating piece two for fixed different types wait the test article, locating piece one with locating piece two all activity is located the adjustment tank inner wall is used for adjusting the relative position of locating piece one and locating piece two, locating piece one outer wall is equipped with a plurality of coniform lugs for improve the firm power of fixed test article, locating piece one with locating piece two bottom all symmetry is equipped with the screw hole, the grip block bottom pass through the bolt with screw hole threaded connection is used for fixed locating piece one, locating piece two.

Further, the reset mechanism comprises a first sliding cylinder, a second sliding cylinder, a first sliding block and a second sliding block, wherein the first sliding cylinder is connected with the inner wall of the first sliding groove through the first sliding block, the first sliding block and the first sliding cylinder are both in sliding connection with the first sliding groove, the outer wall of the clamping block is in sliding connection with the first sliding cylinder through the second sliding cylinder which is fixedly arranged, the first sliding cylinder is connected with the second sliding cylinder through a spring, and the outer wall of the clamping block is in sliding connection with the second sliding groove through the second sliding block.

Furthermore, one end of the spring is welded with the first inner wall of the sliding cylinder, and the other end of the spring is welded with the second inner wall of the sliding cylinder.

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

1. according to the utility model, the mounting box, the motor, the power block, the supporting block, the clamping blocks and the first sliding cylinder are arranged, so that the power block drives the clamping blocks to synchronously move upwards or downwards through the first groove, only one motor is needed to be used as the power of the motor, a plurality of hydraulic cylinders are not needed to be used as the power, and the control of the synchronous opening or closing of the left clamping block and the right clamping block is facilitated, so that a test article is clamped and stabilized rapidly.

2. According to the utility model, the relative positions of the first positioning block and the second positioning block can be adjusted according to the types of test products by arranging the first positioning block, the second positioning block, the adjusting groove, the bolt and the threaded hole, the whole clamp is not required to be replaced when different types of test products are clamped, and only the relative position of the second positioning block of the first positioning block is required to be adjusted, so that the generated cost is saved, and the practicability of the device is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the entirety of the present utility model;

FIG. 3 is a cross-sectional view of a portion of the present utility model;

FIG. 4 is a schematic diagram of the power block of the present utility model;

FIG. 5 is a bottom view of the first positioning block of the present utility model;

FIG. 6 is a side view of a clamp block of the present utility model;

in the figure: 1. a support block; 2. a first chute; 3. a second chute; 4. a clamping block; 5. a groove I; 6. a second groove; 7. a screw rod; 8. a mounting box; 9. a motor; 10. a power block; 11. a limiting block; 12. a first positioning block; 13. a second positioning block; 14. an adjustment tank; 15. a bolt; 16. a threaded hole; 17. a sliding cylinder I; 18. a second sliding cylinder; 19. a first sliding block; 20. a second slide block; 21. a spring; 22. a mounting hole; 23. and a bump.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides the following technical solutions: the utility model provides a hydraulic pressure tensile testing machine anchor clamps, includes supporting shoe 1, two supporting shoe 1 is a pair of, supporting shoe 1 left and right sides inner wall symmetry is equipped with spout one 2, supporting shoe 1 front and back both sides inner wall symmetry is equipped with spout two 3, spout one 2 is located both sides between spout two 3, spout one 2 inner wall is connected with grip block 4 through canceling release mechanical system for drive two grip blocks 4 and left or right remove, 1 top of supporting shoe be equipped with grip block 4 inner wall swing joint's power unit for drive two grip blocks 4 and upwards or downwardly move simultaneously, power unit includes lead screw 7, mounting box 8, motor 9 and power block 10, grip block 4 inner wall be equipped with recess one 5 and recess two 6 that are linked together, power block 10 top through stopper 11 with spout one 2 top sliding connection for avoid power block 10 to rotate, realize the oscilaltion of grip block 4 bottom, the regulating groove 14 inner wall activity of grip block 4 bottom is equipped with adjustment mechanism, support block 1 top rotation is equipped with motor 7, mounting box 8, mounting box 9 and power block 10 are equipped with the lead screw 7, the top is equipped with the power box 10 is equipped with two and is equipped with the power box 10, and the lead screw is equipped with the power box 10.

Referring to fig. 3 and 6, the reset mechanism includes a first slide 17, a second slide 18, a first slide 19 and a second slide 20, the inner wall of the first slide 2 is connected with the first slide 17 through the first slide 19, the first slide 19 and the first slide 17 are both slidably connected with the first slide 2, the outer wall of the clamping block 4 is slidably connected with the first slide 17 through the second slide 18 which is fixedly arranged, the first slide 17 is connected with the second slide 18 through a spring 21, the outer wall of the clamping block 4 is slidably connected with the second slide 3 through the second slide 20, one end of the spring 21 is welded with the inner wall of the first slide 17, and the other end of the spring 21 is welded with the inner wall of the second slide 18.

The specific implementation mode is as follows: when the hydraulic tension testing machine is used, firstly, two clamps are taken, external bolts penetrate through corresponding mounting holes 22, a first clamp is fixed at the bottom of the hydraulic tension testing machine through the external bolts, a second clamp is fixed at the telescopic end of a hydraulic cylinder at the top of the hydraulic tension testing machine through the external bolts, the two clamps are fixed between the same vertical straight line, and an adjusting mechanism is adjusted according to the types of test products, so that the relative positions of a first positioning block 12 and a second positioning block 13 are adjusted; step two, the spring 21 is in a stretched state in the initial state, the output shaft of the motor 9 drives the screw rod 7 to rotate, the screw rod 7 is matched with the screw rod nut, the top of the groove one 5 limits the moving direction of the limiting block 11, the limiting block 11 is fixedly arranged at the top end of the power block 10, the moving direction of the power block 10 can be limited, the screw rod 7 drives the power block 10 to move upwards along the screw rod 7, the power block 10 drives the clamping block 4 to synchronously move upwards through the groove one 5, the clamping block 4 drives the slide cylinder two 18, the spring 21 and the slide block two 20, the slide cylinder two 18 drives the slide cylinder one 17, the slide cylinder one 17 drives the slide block one 19, the slide cylinder two 18, the spring 21 and the slide cylinder two 18 synchronously slide upwards along the slide groove one 2, the slide block two 20 synchronously moves upwards along the slide groove two 3, meanwhile, the slide block two 20 and the slide groove two 3 limit the moving direction of the clamping block 4, the first sliding grooves 2 on the left side and the right side form a funnel shape, the distance between the bottom ends of the first sliding grooves 2 on the two sides is smaller than the distance between the top ends of the first sliding grooves 2, so that in the upward moving process, the spring 21 gradually contracts the self elastic force to drive the clamping blocks 4 to move outwards, the clamping blocks 4 drive the first grooves 5 to gradually move away from the power block 10, the clamping blocks 4 on the two sides synchronously move outwards, the clamping blocks 4 are opened, the clamping blocks 4 drive the adjusting mechanisms to gradually move away, the end parts of test articles are placed in the corresponding adjusting mechanisms, the output shaft of the motor 9 drives the screw rod 7 to reversely rotate, the screw rod 7 drives the power block 10 to move downwards along the screw rod 7, the power block 10 drives the clamping blocks 4 to synchronously move downwards through the first grooves 5, the clamping blocks 4 drive the first sliding blocks 19, the second sliding cylinders 18, the spring 21 and the second sliding cylinders 18 to synchronously slide downwards along the first sliding grooves 2, the clamping block 4 drives the sliding block two 20 to move downwards along the sliding groove two 3, meanwhile, the sliding block two 20 and the sliding groove two 3 limit the moving direction of the clamping block 4, the left clamping block 4 and the right clamping block 4 are gradually close, the clamping block 4 drives the adjusting mechanism to be gradually close, the fixing of the end part of a test article is completed, only one motor 9 is needed to be used as the power of the motor 9, a plurality of hydraulic cylinders are not needed to be used as the power, and the control of the left clamping block 4 and the right clamping block 4 to be synchronously opened or closed is facilitated, so that the test article is clamped and stabilized rapidly.

Referring to fig. 2-6, the present utility model provides the following technical solutions: the utility model provides a hydraulic pressure tensile testing machine anchor clamps, adjustment mechanism includes first 12 and the locating piece second 13 of looks adaptation for fixed different types wait the test article, first 12 of locating piece with the locating piece second 13 all activity is located adjustment tank 14 inner wall is used for adjusting the relative position of first and locating piece second 13, first 12 outer walls of locating piece are equipped with a plurality of coniform lugs 23 for improve the firm power of fixed test article, first 12 of locating piece with 13 bottoms of locating piece second all symmetry is equipped with

screw hole

16, 4 bottom of grip block pass through bolt 15 with screw hole 16 threaded connection is used for fixed locating piece first 12, locating piece second 13.

The specific implementation mode is as follows: when the device is used, the adjusting mechanism is adjusted according to the types of test articles, the purpose is to adjust the relative positions of the first positioning block 12 and the second positioning block 13, firstly, when the test articles are rubber strips, the first positioning block 12 is positioned between the second positioning blocks 13, the second protruding block 23 is positioned between the first positioning blocks 12, the bolt 15 is in threaded connection with the threaded hole 16 positioned at the bottom of the second positioning block 13, the first positioning block 12 is clamped between the second positioning block 13 and the adjusting groove 14, at the moment, the tip of the protruding block 23 is on the same plane with the inner side surface of the clamping block 4, the test articles are placed between the protruding blocks 23 at the two sides, the first positioning blocks 12 at the two sides are clamped through the reset mechanism and the power mechanism, the end part of the test articles is fixed, the fixing strength of the test articles is increased through the conical protruding blocks 23, at the moment, the first positioning block 12 is positioned at the first position, the second positioning block 13 is positioned at the second position, secondly, when the test product is a rubber strip, the bolt 15 is removed, the second positioning block 13 is pulled out of the adjusting groove 14, the first positioning block 12 is pushed to replace the first positioning block 12 with the position of the first positioning block 13, namely, the second positioning block 13 is positioned on the first position, the second positioning block 13 is reinserted into the adjusting groove 14 to position the first positioning block 12 on the second position, the bolt 15 is rotated to enable the bolt 15 to be in threaded connection with the threaded hole 16 at the bottom of the first positioning block 12 to finish fixing, at the moment, the two second positioning blocks 13 are positioned between the two first positioning blocks 12, the clamping surface of the first positioning block 12 and the inner side surface of the clamping block 4 are on the same plane, the test product is placed between the clamping surfaces of the second positioning blocks 13 at two sides, the second positioning blocks 13 at two sides are clamped through the reset mechanism and the power mechanism, and the whole clamp is not required to be replaced when different test products are clamped, only the relative position of the second positioning block 13 of the first positioning block 12 is required to be adjusted, so that the generated cost is saved, and the practicability of the device is improved.

The working principle of the utility model is as follows:

referring to the accompanying drawings 1-6 of the specification, the utility model can drive the clamping blocks 4 to synchronously move upwards or downwards through the first grooves 5 by arranging the mounting boxes 8, the motors 9, the power blocks 10, the supporting blocks 1, the clamping blocks 4 and the first sliding drums 17, only one motor 9 is needed as the power of the motor 9, and a plurality of hydraulic cylinders are not needed as the power, so that the left clamping block 4 and the right clamping block 4 can be conveniently controlled to synchronously open or close, and a test article is clamped rapidly.

Further, referring to fig. 2-6 of the specification, according to the utility model, by arranging the first positioning block 12, the second positioning block 13, the adjusting groove 14, the bolt 15 and the threaded hole 16, the relative positions of the first positioning block 12 and the second positioning block 13 can be adjusted according to the types of test products, the whole clamp is not required to be replaced when different types of test products are clamped, and only the relative position of the second positioning block 13 of the first positioning block 12 is required to be adjusted, so that the generated cost is saved, and the practicability of the device is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a hydraulic pressure tensile testing machine anchor clamps, includes supporting shoe (1), its characterized in that: two supporting shoe (1) is a pair of, supporting shoe (1) left and right sides inner wall symmetry is equipped with spout one (2), both sides inner wall symmetry is equipped with spout two (3) around supporting shoe (1), spout one (2) are located both sides between spout two (3), spout one (2) inner wall is connected with grip block (4) through canceling release mechanical system for drive two grip block (4) left or right removal, supporting shoe (1) top be equipped with grip block (4) inner wall swing joint's power unit for drive two grip block (4) upwards or down simultaneously remove, power unit includes lead screw (7), installation box (8), motor (9) and power block (10), grip block (4) inner wall is equipped with recess one (5) and recess two (6) that are linked together, power block (10) top through stopper (11) with spout one (2) top sliding connection for avoid power block (10) to rotate, realize that grip block (4) reciprocates, adjustment mechanism (14) bottom of the grip block is equipped with movable adjustment mechanism.

2. The fixture for a hydraulic tensile testing machine according to claim 1, wherein: the screw rod (7) is rotationally arranged at the top of the supporting block (1), the motor (9) is arranged on the inner wall of the mounting box (8) at the top of the supporting block (1), an output shaft of the motor (9) is connected with the top end of the screw rod (7), the power block (10) is slidingly arranged at the bottom end of the screw rod (7), and a screw nut matched with the screw rod (7) is arranged on the inner wall of the power block (10).

3. The fixture for a hydraulic tensile testing machine according to claim 1, wherein: the power block (10) is in sliding connection with the first groove (5), the outer wall of the bottom of the screw rod (7) is in rotary connection with the second groove (6), a plurality of mounting holes (22) are formed in the top of the mounting box (8), and the first sliding grooves (2) on the left side and the right side form a funnel shape.

4. The fixture for a hydraulic tensile testing machine according to claim 1, wherein: the adjusting mechanism comprises a first positioning block (12) and a second positioning block (13) which are matched, and is used for fixing different types of to-be-tested products, the first positioning block (12) and the second positioning block (13) are movably arranged on the inner wall of the adjusting groove (14) and are used for adjusting the relative positions of the first positioning block and the second positioning block (13), a plurality of conical protruding blocks (23) are arranged on the outer wall of the first positioning block (12) and are used for improving the firmness of fixing the to-be-tested products, threaded holes (16) are symmetrically formed in the bottoms of the first positioning block (12) and the second positioning block (13), and the bottom end of the clamping block (4) is in threaded connection with the threaded holes (16) through bolts (15) and is used for fixing the first positioning block (12) and the second positioning block (13).

5. The fixture for a hydraulic tensile testing machine according to claim 1, wherein: the reset mechanism comprises a first sliding cylinder (17), a second sliding cylinder (18), a first sliding block (19) and a second sliding block (20), wherein the first sliding cylinder (17) is connected to the inner wall of the first sliding groove (2) through the first sliding block (19), the first sliding block (19) and the first sliding cylinder (17) are both in sliding connection with the first sliding groove (2), the outer wall of the clamping block (4) is in sliding connection with the first sliding cylinder (17) through the second sliding cylinder (18) which is fixedly arranged, the first sliding cylinder (17) is connected with the second sliding cylinder (18) through a spring (21), and the outer wall of the clamping block (4) is in sliding connection with the second sliding groove (3) through the second sliding block (20).

6. The fixture for the hydraulic tension tester according to claim 5, wherein: one end of the spring (21) is welded with the inner wall of the first sliding cylinder (17), and the other end of the spring (21) is welded with the inner wall of the second sliding cylinder (18).