CN212621879U

CN212621879U - Clamp for compression bar stability test of mechanical multifunctional test bed

Info

Publication number: CN212621879U
Application number: CN202021586687.9U
Authority: CN
Inventors: 殷凤兰; 姚海妮; 张振原; 李晓春; 李国良; 张福建
Original assignee: HAIDU COLLEGE QINGDAO AGRICULTURAL UNIVERSITY
Current assignee: HAIDU COLLEGE QINGDAO AGRICULTURAL UNIVERSITY
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-02-26
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a mechanics multi-function test platform depression bar stability test's anchor clamps, the on-line screen storage device comprises a base, the top fixed mounting of base has the U-shaped frame, and the top fixed mounting of U-shaped frame has the pneumatic cylinder, and the output shaft bottom of pneumatic cylinder extends to in the U-shaped frame and fixed mounting has draws pressure sensor, draws pressure sensor's bottom fixed mounting has the top board, the top fixed mounting of base has the fixing base, and the rectangular hole has been seted up on the right side of fixing base, and sliding sleeve is equipped with two carriage release levers in the rectangular hole, and the one end that two carriage release levers were kept away from each other all extends to the. The utility model relates to a rationally, be convenient for stabilize the centre gripping fixed to the depression bar of different widths fast, improve work efficiency, and the spring setting, be convenient for alleviate splint to the clamping-force size of depression bar, avoid satisfying the user demand because of the great risk that the depression bar warp and damage appears of clamping-force, be favorable to the use.

Description

Clamp for compression bar stability test of mechanical multifunctional test bed

Technical Field

The utility model relates to a test bench depression bar stability test anchor clamps technical field especially relates to a mechanics multifunctional test bench depression bar stability test's anchor clamps.

Background

In engineering practice, because the instability of the compression bar brings serious loss to engineering structures or machines, with the continuous development of the compression bar stability theory, the test research on the stability of the compression bar draws general attention of many engineering technicians, and at present, many colleges and universities and scientific research institutions mainly adopt a material mechanics multifunctional test bed to perform compression bar stability test, and after retrieval, the compression bar stability test is authorized to be issued: CN203069452U discloses a anchor clamps for material mechanics multifunctional test platform depression bar stability test, this kind of anchor clamps for material mechanics multifunctional test platform depression bar stability test includes V-arrangement hinged support, lower V-arrangement hinged support, goes up the V-arrangement hinged support and is connected with the pull pressure sensor of material mechanics multifunctional test platform through the ring flange, and lower V-arrangement hinged support passes through the base of ring flange and material mechanics multifunctional test platform to be connected, installs the depression bar between last V-arrangement hinged support and the lower V-arrangement hinged support, through changing different annex, can realize multiple rod end restraint and variable length depression bar stability test.

Although the utility model discloses a can realize the depression bar centre gripping of different length and carry out stability and realize, it is not convenient for carry out the centre gripping fixedly with the depression bar of different width fast according to actual need, fix the depression bar on last V-arrangement hinged support and V-arrangement hinged support down through toper activity clamp splice cooperation bolt in the above-mentioned patent, work efficiency is low, and need match different last V-arrangement hinged support and V-arrangement hinged support down to the depression bar of different width, can not satisfy the user demand, therefore we have proposed a mechanical multifunctional test platform depression bar stable test's anchor clamps and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a clamp for a compression bar stability test of a mechanical multifunctional test bed.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mechanics multifunctional test platform depression bar stability test's anchor clamps, the on-line screen storage device comprises a base, the top fixed mounting of base has the U-shaped frame, and the top fixed mounting of U-shaped frame has the pneumatic cylinder, and the output shaft bottom of pneumatic cylinder extends to in the U-shaped frame and fixed mounting has draws pressure sensor, draws pressure sensor's bottom fixed mounting has the top board, the top fixed mounting of base has a fixing base, and the rectangular hole has been seted up on the right side of fixing base, and sliding sleeve is equipped with two carriage release levers in the rectangular hole, and the one end that two carriage release levers were kept away from each other all extends to outside the fixing base and fixed mounting has the connecting plate, and the equal fixed mounting in one side top that two connecting plates are close to each other has T shape pole, and the top movable contact of fixing base has two splint, and the equal fixed mounting in one side that two splint were kept away from each other The spring movable sleeve is arranged on the corresponding rectangular rod, two fixed blocks are fixedly arranged between the top inner wall and the bottom inner wall of the rectangular hole, two locating rods are fixedly arranged on one side of each fixed block, the moving rod is slidably sleeved on the two corresponding locating rods, two screw rods are arranged in the rectangular hole and are located between the two corresponding locating rods, the thread turning directions of the two screw rods are opposite, one ends, close to each other, of the two screw rods are welded, one ends, away from each other, of the two screw rods are extended to the outside of the fixed seat, the moving rod is in threaded sleeve connection with the corresponding screw rods, the connecting plate is sleeved on the corresponding screw rods, a rocking disc is fixedly arranged at the right.

Preferably, one side that two splint are close to each other all bonds and is fixed with first non-slip rubber, and the bottom bonding of top board is fixed with second non-slip rubber, and the top of fixing base is inlayed and is equipped with third non-slip rubber, and the top movable contact of third non-slip rubber has the depression bar, and the depression bar is located between two splint.

Preferably, a first rectangular channel has all been seted up to one side that two T shape poles are close to each other, the inner wall of first rectangular channel and the outside sliding connection of the rectangular rod that corresponds have seted up spacing hole on the top inner wall of first rectangular channel, and the top fixed mounting of rectangular rod has the stopper, stopper and the spacing hole sliding connection that corresponds.

Preferably, two second rectangular channels and screw hole have all been seted up to the one end that two carriage release levers are close to each other, the inner wall of second rectangular channel and the outside sliding connection of the locating lever that corresponds, and the screw hole is located between two second rectangular channels that correspond, screw hole and the screw rod threaded connection who corresponds.

Preferably, a first circular hole is formed in one side of the fixing block, a first bearing is fixedly sleeved in the first circular hole, and the inner side of an inner ring of the first bearing is fixedly connected with the outer side of the corresponding screw rod.

Preferably, a second circular hole is formed in one side of the connecting plate, the screw rod is located in the corresponding second circular hole, and the inner wall of the second circular hole is not in contact with the outer side of the corresponding screw rod.

Preferably, the top fixed mounting of base has the seat of rotating, and two connecting plates all are located two and rotate between the seat, rotate one side of seat and have seted up the third circular hole, and the fixed cover in the third circular hole is equipped with the second bearing, the inboard outside fixed connection with the screw rod that corresponds of inner circle of second bearing.

Compared with the prior art, the beneficial effects of the utility model are that:

through the base, the U-shaped frame, the hydraulic cylinder, the tension pressure sensor, the upper pressure plate, the fixed seat, the rectangular hole, the fixed block, the positioning rod, the movable rod, the connecting plate, the screw rods, the T-shaped rod, the clamping plates, the spring, the rectangular rod and the rocking disc, when the pressure rod needs to be clamped and fixed, the pressure rod is placed on the fixed seat, the bottom end of the pressure rod is contacted with the top of the second anti-skid rubber sheet, the rocking disc is rotated to drive the two screw rods to rotate, the corresponding movable rod is driven to move while the screw rods rotate, the movable rod drives the T-shaped rod to move through the corresponding connecting plate, the T-shaped rod drives the clamping plates to move towards the pressure rod through the corresponding spring, the two clamping plates drive the two first anti-skid rubber sheets to move towards the direction close to each other until the two first anti-skid rubber sheets are contacted with the pressure rod, the clamping plates are limited to continue to move, the stopping rotation shakes the dish for two splint stabilize the centre gripping to the depression bar, start the pneumatic cylinder band-pass and drive the top board downstream through drawing pressure sensor immediately forward, and the top board drives third prevention rubber sheet and pushes down the clamp plate fixedly downwards, and when continuing the downstream top board, then the top board is exerted the holding down force to the depression bar downwards, and pressure sensor is drawn in the cooperation simultaneously, can test the stability of depression bar.

The utility model relates to a rationally, be convenient for stabilize the centre gripping fixed to the depression bar of different widths fast, improve work efficiency, and the spring setting, be convenient for alleviate splint to the clamping-force size of depression bar, avoid satisfying the user demand because of the great risk that the depression bar warp and damage appears of clamping-force, be favorable to the use.

Drawings

Fig. 1 is a schematic sectional structural view of a fixture for a compression bar stability test of a multifunctional mechanical test bed provided by the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the device comprises a base 1, a U-shaped frame 2, a hydraulic cylinder 3, a tension pressure sensor 4, an upper pressure plate 5, a fixed seat 6, a rectangular hole 7, a fixed block 8, a positioning rod 9, a movable rod 10, a connecting plate 11, a screw rod 12, a T-shaped rod 13, a clamping plate 14, a spring 15, a rectangular rod 16 and a rocking disc 17.

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.

Referring to fig. 1-2, a clamp for a mechanical multifunctional test bed compression bar stability test comprises a base 1, a U-shaped frame 2 is fixedly installed at the top of the base 1, a hydraulic cylinder 3 is fixedly installed at the top of the U-shaped frame 2, the bottom end of an output shaft of the hydraulic cylinder 3 extends into the U-shaped frame 2 and is fixedly installed with a pulling pressure sensor 4, an upper pressing plate 5 is fixedly installed at the bottom of the pulling pressure sensor 4, a fixed seat 6 is fixedly installed at the top of the base 1, a rectangular hole 7 is formed in the right side of the fixed seat 6, two movable rods 10 are slidably sleeved in the rectangular hole 7, one ends of the two movable rods 10 far away from each other extend out of the fixed seat 6 and are fixedly installed with connecting plates 11, a T-shaped rod 13 is fixedly installed at the top of one side of the two connecting plates 11 close to each other, two clamping plates 14 are movably contacted with, the T-shaped rods 13 are slidably sleeved on the corresponding rectangular rods 16, the sides, far away from each other, of the two clamping plates 14 are respectively and fixedly provided with springs 15 between the sides, close to each other, of the two T-shaped rods 13, the springs 15 are movably sleeved on the corresponding rectangular rods 16, two fixed blocks 8 are fixedly arranged between the top inner wall and the bottom inner wall of the rectangular hole 7, two positioning rods 9 are fixedly arranged on the sides, far away from each other, of the two fixed blocks 8, the moving rods 10 are slidably sleeved on the corresponding two positioning rods 9, two screw rods 12 are arranged in the rectangular hole 7, the screw rods 12 are positioned between the corresponding two positioning rods 9, the thread turning directions of the two screw rods 12 are opposite, the ends, close to each other, of the two screw rods 12 are welded, the ends, far away from each other, of the two screw rods 12 extend to the outside of the fixed seat 6, the, the right-hand member fixed mounting that lies in the screw rod 12 on right side in two screw rods 12 has rocking disc 17, and fixed block 8 rotates the cover and establishes on corresponding screw rod 12, the utility model relates to a rationally, be convenient for stabilize the centre gripping to the depression bar of different width fast and fix, improve work efficiency, and spring 15 sets up, is convenient for alleviate splint 14 and to the clamping-force size of depression bar, avoids meeting the user demand because of the great risk that the depression bar warp and damage that appears of clamping-force, is favorable to the use.

In the utility model, one side of two clamping plates 14 close to each other is fixedly bonded with a first anti-slip rubber sheet, the bottom of an upper pressure plate 5 is fixedly bonded with a second anti-slip rubber sheet, the top of a fixed seat 6 is embedded with a third anti-slip rubber sheet, the top of the third anti-slip rubber sheet is movably contacted with a pressure lever, the pressure lever is positioned between the two clamping plates 14, one side of two T-shaped rods 13 close to each other is provided with a first rectangular groove, the inner wall of the first rectangular groove is in sliding connection with the outer side of a corresponding rectangular rod 16, the inner wall of the top of the first rectangular groove is provided with a limiting hole, the top of the rectangular rod 16 is fixedly provided with a limiting block, the limiting block is in sliding connection with a corresponding limiting hole, one end of the two moving rods 10 close to each other is provided with two second rectangular grooves and a threaded hole, the inner wall of the second rectangular groove is in sliding connection with the outer side of a corresponding positioning, the threaded hole is connected with the corresponding screw 12 by screw thread, one side of the fixed block 8 is provided with a first circular hole, the first circular hole is internally and fixedly sleeved with a first bearing, the inner side of the inner ring of the first bearing is fixedly connected with the outer side of the corresponding screw 12, one side of the connecting plate 11 is provided with a second circular hole, the screw 12 is positioned in the corresponding second circular hole, the inner wall of the second circular hole is not contacted with the outer side of the corresponding screw 12, the top of the base 1 is fixedly provided with a rotating seat, the two connecting plates 11 are both positioned between the two rotating seats, one side of the rotating seat is provided with a third circular hole, the inner side of the inner ring of the second bearing is fixedly sleeved with a second bearing, the inner side of the inner ring of the second bearing is fixedly connected with the outer side of the corresponding screw 12, the utility model has reasonable design, is convenient for stably clamping and fixing the compression bars with different widths rapidly, improves, avoid because of the great risk that the depression bar warp the damage that appears of clamping-force, satisfy the user demand, be favorable to using.

The working principle is as follows: when the device is used, when the compression rod needs to be clamped and fixed, the compression rod is placed on the fixed seat 6 and is positioned between the two clamping plates 14, the bottom end of the compression rod is in contact with the top of the second anti-skid rubber sheet, the rocking disc 17 is rotated at the moment, the rocking disc 17 drives the two screw rods 12 to rotate, under the action of the thread grooves formed in the moving rods 10, the screw rods 12 rotate and simultaneously drive the corresponding moving rods 10 to move, the moving rods 10 slide on the corresponding two positioning rods 9, the moving rods 10 simultaneously drive the corresponding connecting plates 11 to move, the two connecting plates 11 drive the two T-shaped rods 13 to move towards the mutually approaching direction, the T-shaped rods 13 drive the clamping plates 14 to move towards the direction close to the compression rod through the corresponding springs 15, the two clamping plates 14 drive the two first anti-skid rubber sheets to move towards the mutually approaching direction to be in contact with the compression rod, the clamping plates 14 are limited to continue to move, and the T-shaped rods 13 continue, when the clamping force of the clamping plates 14 to the compression rod is adjusted according to the compression degree of the springs 15, the rocking disc 17 stops rotating, the clamping plates 14 are fixed under the action of the screw locking effect of the screw 12 and the corresponding thread groove, the two clamping plates 14 stably clamp the compression rod, and the springs 15 are arranged, so that the clamping force of the clamping plates 14 to the compression rod is relieved, and the risk of deformation and damage of the compression rod due to large clamping force is avoided;

immediately forward start pneumatic cylinder, the output shaft of pneumatic cylinder drives and draws pressure sensor 4 downstream, draw pressure sensor 4 to drive top board 5 downstream, top board 5 drives the third prevention rubber sheet downstream when downstream and to the top of depression bar to the contact, top board 5 pushes down fixedly to the clamp plate, when continuing to press down the depression bar, then top board 5 applys the holding down force to the depression bar downwards, pressure sensor 4 is drawn in the cooperation simultaneously, can test the stability of depression bar, and two splint 14 are convenient for fix the depression bar at central point to the direction of the direction removal that is close to each other, the experimental operation of being convenient for.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The clamp for the compression bar stability test of the mechanical multifunctional test bed comprises a base (1), wherein a U-shaped frame (2) is fixedly installed at the top of the base (1), a hydraulic cylinder (3) is fixedly installed at the top of the U-shaped frame (2), an output shaft bottom end of the hydraulic cylinder (3) extends into the U-shaped frame (2) and is fixedly installed with a pulling pressure sensor (4), an upper pressure plate (5) is fixedly installed at the bottom of the pulling pressure sensor (4), and is characterized in that a fixed seat (6) is fixedly installed at the top of the base (1), a rectangular hole (7) is formed in the right side of the fixed seat (6), two moving rods (10) are slidably sleeved in the rectangular hole (7), one ends, far away from each other, of the two moving rods (10) extend out of the fixed seat (6) and are fixedly installed with connecting plates (11), and a T-shaped rod (13) is fixedly installed, the top of the fixed seat (6) is movably contacted with two clamping plates (14), one sides of the two clamping plates (14) far away from each other are fixedly provided with rectangular rods (16), the T-shaped rods (13) are sleeved on the corresponding rectangular rods (16) in a sliding way, one sides of the two clamping plates (14) far away from each other are respectively and fixedly provided with springs (15) between one sides of the two T-shaped rods (13) close to each other, the springs (15) are movably sleeved on the corresponding rectangular rods (16), two fixed blocks (8) are fixedly arranged between the inner walls of the top and the bottom of the rectangular holes (7), one sides of the two fixed blocks (8) far away from each other are respectively and fixedly provided with two positioning rods (9), the movable rod (10) is sleeved on the corresponding two positioning rods (9) in a sliding way, two screw rods (12) are arranged in the rectangular holes (7), and the screw rods (12), the screw thread of two screw rods (12) is turned to the opposite direction, the one end that two screw rods (12) are close to each other welds mutually, the one end that two screw rods (12) kept away from each other all extends to outside fixing base (6), carriage release lever (10) thread bush is established on corresponding screw rod (12), connecting plate (11) cover is established on corresponding screw rod (12), the right-hand member fixed mounting of the screw rod (12) that lie in the right side in two screw rods (12) has rocking disc (17), fixed block (8) are rotated the cover and are established on corresponding screw rod (12).

2. The clamp for the compression bar stability test of the mechanical multifunctional test bed according to claim 1, wherein a first anti-slip rubber sheet is fixedly bonded to one side of each of the two clamping plates (14) close to each other, a second anti-slip rubber sheet is fixedly bonded to the bottom of the upper pressure plate (5), a third anti-slip rubber sheet is embedded in the top of the fixed seat (6), a compression bar is movably contacted with the top of the third anti-slip rubber sheet, and the compression bar is located between the two clamping plates (14).

3. The clamp for the compression bar stability test of the mechanical multifunctional test bed according to claim 1, wherein a first rectangular groove is formed in one side, close to each other, of each of the two T-shaped bars (13), the inner wall of each first rectangular groove is in sliding connection with the outer side of the corresponding rectangular bar (16), a limiting hole is formed in the inner wall of the top of each first rectangular groove, a limiting block is fixedly mounted at the top of each rectangular bar (16), and each limiting block is in sliding connection with the corresponding limiting hole.

4. The clamp for the compression bar stability test of the mechanical multifunctional test bed according to claim 1, wherein one end of each of the two movable rods (10) close to each other is provided with two second rectangular grooves and a threaded hole, the inner walls of the second rectangular grooves are slidably connected with the outer sides of the corresponding positioning rods (9), the threaded holes are located between the corresponding two second rectangular grooves, and the threaded holes are in threaded connection with the corresponding screw rods (12).

5. The clamp for the compression bar stability test of the mechanical multifunctional test bed according to claim 1, wherein a first circular hole is formed in one side of the fixing block (8), a first bearing is fixedly sleeved in the first circular hole, and the inner side of an inner ring of the first bearing is fixedly connected with the outer side of the corresponding screw (12).

6. The clamp for the compression bar stability test of the mechanical multifunctional test bed according to claim 1, wherein one side of the connecting plate (11) is provided with a second circular hole, the screw rod (12) is located in the corresponding second circular hole, and the inner wall of the second circular hole is not in contact with the outer side of the corresponding screw rod (12).

7. The clamp for the compression bar stability test of the mechanical multifunctional test bed according to claim 1, wherein a rotating seat is fixedly installed at the top of the base (1), the two connecting plates (11) are located between the two rotating seats, a third round hole is formed in one side of each rotating seat, a second bearing is fixedly sleeved in the third round hole, and the inner side of an inner ring of the second bearing is fixedly connected with the outer side of the corresponding screw (12).