CN215985085U

CN215985085U - Fixing clamp for irregular sample vibration test

Info

Publication number: CN215985085U
Application number: CN202122613438.5U
Authority: CN
Inventors: 林湘云; 黄瑞良; 付少波
Original assignee: Lianhe Testing And Research Institute Guangzhou Co ltd
Current assignee: Lianhe Testing And Research Institute Guangzhou Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-03-08
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses a fixing clamp for an irregular sample vibration test, which comprises a vibration bottom plate, wherein a vibration component is uniformly arranged on the end surface of the vibration bottom plate, a base is horizontally arranged on the end surface of the vibration component, two groups of vertical plates are arranged on two sides of the end surface of the base, the test sample can be fixed and clamped in all directions through the elastic functions of a left elastic clamping plate and a right elastic clamping plate, the irregular part on the surface of the test sample can be fixed and clamped through the matching use between a movable ejector rod and a spring part in the clamping process, meanwhile, the device can perform the fixed clamping of comprehensive fitting according to the test sample with irregular shape, the protection effect during the clamping of the irregular test sample can be realized through the arrangement of elastic balls in the left elastic clamping plate and the right elastic clamping plate, the test sample can be prevented from being damaged, and the practicability of the fixing clamp is further improved, and the maintenance is convenient when the fault occurs, and the maintenance cost is lower.

Description

Fixing clamp for irregular sample vibration test

Technical Field

The utility model belongs to the technical field of fixing clamps, and particularly relates to a fixing clamp for an irregular sample vibration test.

Background

The vibration table is used for simulating various environments encountered by products in manufacturing, assembling, transporting and using execution stages to identify whether the products bear the environment vibration or not, and is suitable for research, development, quality control and manufacturing of various industries such as electronics, electromechanics, photoelectricity, automobiles, locomotives, toys and the like. When the vibration test bed carries out vibration test on the parts, the parts need to be clamped, the clamping points of the parts need to keep the same clamping pressure in the process of clamping the parts, and the existing clamping device cannot guarantee that the clamping points of the parts can keep uniform clamping force.

To this end, a vibration test fixture disclosed in publication "CN 211147979U" includes: the lower connecting plate is rotatably connected with an air cylinder, and the driving end of the air cylinder is connected with a first linear gear; the two sides of the cylinder on the lower connecting plate are both connected with side plates, the side plates are connected with upper cover plates, and the upper cover plates are connected with a test mounting plate; the outer sides of the test mounting plates are connected with side connecting blocks, mounting parts are arranged on the side connecting blocks, fourth rotating rods are rotatably connected in the mounting parts, and the other ends of the driving arms are rotatably connected to the second rotating rods; a sliding groove block is arranged on the inner wall of one side plate, one end of the second rotating rod is connected into a sliding groove of the sliding groove block in a sliding mode, a linear bearing is further arranged in the sliding groove, a driving arm is connected into the linear bearing, one end of the driving arm is connected with the second rotating rod, and one end of the driving arm is connected with the second linear gear; the side plate is also connected with a gear through a cross rod, the first linear gear is meshed with the gear, and the gear is meshed with the second linear gear.

To above-mentioned this mounting fixture for vibration test, though this device can treat that the test piece presss from both sides tightly, the clamping jaw has set up the elastic part, can prevent to await measuring the test piece damage, but it still has following comparatively obvious defect in the use: although can carry out the centre gripping to the work piece fixedly, then experiment, but can only carry out the centre gripping to regular work piece fixedly among the prior art, can not carry out the centre gripping fixedly according to test sample's shape size, the practicality is lower, current mounting fixture all adopts mechanical mechanism to drive anchor clamps and carry out the centre gripping fixedly to test sample simultaneously, and mechanical structure's mounting fixture is not enough stable enough to the sample centre gripping, breaks down easily, and mechanical structure maintains moreover and compares, and the cost of maintenance is also than higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing clamp for an irregular sample vibration test, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an irregular sample mounting fixture for vibration test, includes the vibration bottom plate, the terminal surface of vibration bottom plate evenly is equipped with the vibration subassembly, the terminal surface level of vibration subassembly is equipped with the base, the terminal surface both sides of base are equipped with two sets of risers, and are two sets of the equal symmetry of medial surface of riser is equipped with two sets of first cylinders, and is two sets of the piston rod one end of first cylinder is fixed with two sets of splint, and is two sets of the activity ejector pin has evenly run through on the splint, the one end of activity ejector pin evenly is equipped with left elasticity splint, right elasticity splint respectively, and is two sets of the top middle part of riser all is equipped with the recess, all install the second cylinder in the recess, the piston rod top level of second cylinder is equipped with the diaphragm, and is two sets of the top symmetry of riser is equipped with the location slide bar, the activity is equipped with the location slider on the location slide bar.

As a further optimization of the technical scheme, the vibration assembly comprises a vibration spring, a telescopic sleeve is arranged on the bottom side inside the vibration spring, a telescopic column is movably arranged in the top end of the telescopic sleeve, the top end of the telescopic column is fixedly connected with the bottom surface of the base, and the bottom end of the telescopic sleeve is fixedly connected with the surface of the vibration bottom plate, so that the whole device can keep the stability of vibration in the vibration test process, and the amplitude of the vibration is reduced.

As a further optimization of the technical scheme, the movable ejector rods are located at two groups, one ends of the side faces of the clamping plates are sleeved with the spring parts, one ends of the spring parts are fixedly connected with one faces of the clamping plates, the elastic clamp can irregularly clamp and fix the test sample, and the elastic clamp can automatically recover to the original shape under the condition of nonuse.

As a further optimization of the technical scheme, the positioning slide block arranged on the positioning slide rod is fixedly connected with two ends of the top of the two groups of clamping plates, so that the stability of the two groups of clamping plates in the clamping and moving process can be guaranteed, and the elastic clamping plates can accurately fix and clamp the test sample.

As the further optimization of this technical scheme, the middle part of diaphragm is run through and is fixed with the third cylinder, the piston rod bottom of third cylinder is equipped with the top clamp plate, realizes pushing down fixedly irregular test sample's top, guarantees the fixed stability of sample centre gripping in the vibration test process, the top clamp plate correspond the bottom and the terminal surface that is located the base is equipped with the work piece backing plate, play the effect of the support protection after placing test sample, avoid with the base between loaded down with trivial details friction collision.

As the further optimization of this technical scheme, the one side of left side elasticity splint, right elasticity splint is the design of circular arc concave surface, and is equipped with circular arc elasticity backing plate in the circular arc concave surface, the inside of left side elasticity splint, right elasticity splint evenly is equipped with the elastic ball body, can carry out the effect of fixed centre gripping according to the irregular shape of test sample to accomplish the effect to the fixed centre gripping protection of test sample.

The utility model has the technical effects and advantages that: when the irregular sample vibration test fixture needs to perform vibration test on a test sample, the test sample is firstly placed on a workpiece backing plate arranged in the middle of a base, and the workpiece backing plate is arranged to prevent the test sample from directly contacting with the base, so that the test sample is protected, after the test sample is placed, a first air cylinder is started to drive two groups of clamping plates to move towards two sides of the test sample through a piston rod, and the two groups of clamping plates slide on a positioning slide rod through a positioning slide block in a directional manner, so that the two groups of clamping plates can keep the stability of linear movement during movement, and the left elastic clamping plate and the right elastic clamping plate can accurately and fixedly clamp the test sample, and the left elastic clamping plate and the right elastic clamping plate are driven to move when the two groups of clamping plates move, so that the function of fixing and clamping two sides of the test sample is realized, and a top pressing plate is pushed to move downwards through a third air cylinder, and the top pressing plate moves downwards to press and fix the end part of the test sample, so that the test sample is kept stable in the vibration process.

At the fixed in-process to the test sample centre gripping, elasticity function through left elasticity splint and right elasticity splint, can carry out omnidirectional fixed centre gripping to test sample, and the in-process of centre gripping is used through the cooperation between activity ejector pin and the spring part, can fix the centre gripping to test sample surface irregularity, make the device can carry out the fixed centre gripping of laminating comprehensively according to irregularly shaped test sample simultaneously, through the setting of the interior elastic sphere of left elasticity splint and right elasticity splint, guard action when can be to irregular test sample centre gripping, guarantee that test sample can not be impaired, and then improve this mounting fixture's practicality, and conveniently maintain when breaking down, and cost of maintenance is lower.

Drawings

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

FIG. 2 is a top view of the resilient cleat of the present invention;

fig. 3 is a side view of the present invention.

In the figure: 1. vibrating the base plate; 2. a vibrating assembly; 3. a base; 4. a vertical plate; 5. a first cylinder; 6. a splint; 7. a movable ejector rod; 8. a right elastic splint; 9. an elastic sphere; 10. a spring member; 11. a second cylinder; 12. a transverse plate; 13. positioning the slide bar; 14. positioning the sliding block; 15. a third cylinder; 16. a top platen; 17. an arc elastic backing plate; 18. a groove; 19. a left elastic splint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a fixing clamp for irregular sample vibration test comprises a vibration bottom plate 1, wherein a vibration component 2 is uniformly arranged on the end face of the vibration bottom plate 1 and can ensure the stability of a test sample in the vibration test, the vibration component 2 comprises a vibration spring, a telescopic sleeve is arranged on the bottom side inside the vibration spring and is convenient for elastic sleeving of a telescopic column, the telescopic column is movably arranged in the top end of the telescopic sleeve and plays an elastic supporting effect on a base 3, the top end of the telescopic column is fixedly connected with the bottom surface of the base 3, the bottom end of the telescopic sleeve is fixedly connected with the surface of the vibration bottom plate 1, the moving amplitude of the test sample in the test is reduced, the base 3 is horizontally arranged on the end face of the vibration component 2 and is convenient for fixing two groups of vertical plates 4, two groups of vertical plates 4 are arranged on two sides of the end face of the base 3 and are convenient for installation and fixation of a second air cylinder 11, two groups of first air cylinders 5 are symmetrically arranged on the inner side faces of the two groups of vertical plates 4, realize the one side of two sets of risers 4 and its fixed connection to realize the removal of two sets of risers 4.

Two groups of clamping plates 6 are fixed at one end of piston rods of two groups of first cylinders 5, the movable telescopic arrangement of a movable ejector rod 7 is facilitated, the movable ejector rod 7 uniformly penetrates through the two groups of clamping plates 6 and is convenient for a fixed connection of an elastic clamp, a spring part 10 is sleeved at one end of the movable ejector rod 7, which is positioned at one side of the two groups of clamping plates 6, one end of the spring part 10 is fixedly connected with one surfaces of the two groups of clamping plates 6, the elastic clamp can automatically recover an initial state under the condition of nonuse, a left elastic clamping plate 19 and a right elastic clamping plate 8 are respectively and uniformly arranged at one end of the movable ejector rod 7, the fixed clamping of a test sample is realized, one surfaces of the left elastic clamping plate 19 and the right elastic clamping plate 8 are designed into arc concave surfaces, an arc elastic backing plate 17 is arranged in each arc concave surface, the protection effect on the test sample is achieved, and elastic balls 9 are uniformly arranged in the left elastic clamping plate 19 and the right elastic clamping plate 8, realize the fixed centre gripping to irregular test sample to improve the vibration test to different test samples of test board.

The middle parts of the top ends of the two groups of vertical plates 4 are respectively provided with a groove 18, so that the second air cylinders 11 can be installed and fixed, the second air cylinders 11 are installed in the grooves 18, a transverse plate 12 is horizontally arranged at the top end of a piston rod of the second cylinder 11, so that the third cylinder 15 can be conveniently penetrated and fixed, the third cylinder 15 is penetrated and fixed in the middle of the transverse plate 12, the top pressing plate 16 can move up and down, the top pressing plate 16 is arranged at the bottom end of a piston rod of the third cylinder 15, and the corresponding bottom end of the top pressure plate 16 and the end surface positioned on the base 3 are provided with workpiece backing plates for supporting the test sample, the top ends of the two groups of vertical plates 4 are symmetrically provided with positioning slide bars 13 for facilitating the movable sleeve joint and sliding of the positioning slide blocks 14, the positioning slide bars 13 are movably provided with the positioning slide blocks 14, and a positioning slide block 14 arranged on the positioning slide rod 13 is fixedly connected with two ends of the top of the two groups of clamping plates 6, so that the clamping accuracy of the elastic clamping plates on the test sample is improved.

It is specific, place test sample on the work piece backing plate that base 3 middle part set up during the use at first, and the setting of work piece backing plate, can make test sample not with base 3 direct contact, thereby play the guard action to test sample, test sample places the back, start first cylinder 5 and drive two sets of splint 6 through the piston rod and be close to the removal to test sample both sides, and two sets of splint pass through location slider 14 and directional slip on location slide bar 13, can make two sets of splint 6 keep rectilinear movement's stability when removing, and make the accurate fixed centre gripping to test sample that left elastic splint 19 and right elastic splint 8 can advance, drive left elastic splint 19 and right elastic splint 8 and remove when two sets of splint 6 remove, thereby realize the fixed clamping function to test sample both sides.

At the fixed in-process to the test sample centre gripping, elasticity function through left elasticity splint 19 and right elasticity splint 8, can carry out omnidirectional fixed centre gripping to test sample, and the in-process of centre gripping is used through the cooperation between activity ejector pin 7 and the spring part 10, can fix the centre gripping to test sample surface irregularity, make the device can carry out the fixed centre gripping of laminating comprehensively according to irregularly shaped test sample simultaneously, through the setting of elasticity spheroid 9 in left elasticity splint 19 and the right elasticity splint 8, can be to the guard action when irregularly testing sample centre gripping, guarantee that test sample can not be impaired, and then improve this mounting fixture's practicality, and conveniently maintain when breaking down, and cost of maintenance is lower.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an irregular sample mounting fixture for vibration test, includes vibration bottom plate (1), its characterized in that: the vibration device is characterized in that a vibration assembly (2) is uniformly arranged on the end face of the vibration bottom plate (1), a base (3) is horizontally arranged on the end face of the vibration assembly (2), two sets of vertical plates (4) are arranged on two sides of the end face of the base (3), two sets of first cylinders (5) are symmetrically arranged on the inner side faces of the two sets of vertical plates (4), two sets of clamping plates (6) are fixed at one ends of piston rods of the two sets of first cylinders (5), movable push rods (7) uniformly penetrate through the two sets of clamping plates (6), a left elastic clamping plate (19) and a right elastic clamping plate (8) are respectively and uniformly arranged at one end of each movable push rod (7), a groove (18) is formed in the middle of the top end of each set of vertical plates (4), a second cylinder (11) is installed in each groove (18), a transverse plate (12) is horizontally arranged at the top end of each piston rod of each second cylinder (11), two sets of positioning slide rods (13) are symmetrically arranged at the top ends of the vertical plates (4), and a positioning slide block (14) is movably arranged on the positioning slide rod (13).

2. The fixing jig for the irregular sample vibration test as set forth in claim 1, wherein: the vibration assembly (2) comprises a vibration spring, a telescopic sleeve is arranged on the bottom side of the interior of the vibration spring, a telescopic column is movably arranged in the top end of the telescopic sleeve, the top end of the telescopic column is fixedly connected with the bottom surface of the base (3), and the bottom end of the telescopic sleeve is fixedly connected with the surface of the vibration bottom plate (1).

3. The fixing jig for the irregular sample vibration test as set forth in claim 1, wherein: the movable ejector rods (7) are positioned at one ends of the side surfaces of the two groups of clamping plates (6) and are sleeved with spring parts (10), and one ends of the spring parts (10) are fixedly connected with one surfaces of the two groups of clamping plates (6).

4. The fixing jig for the irregular sample vibration test as set forth in claim 1, wherein: and a positioning slide block (14) arranged on the positioning slide rod (13) is fixedly connected with two ends of the top of the two groups of clamping plates (6).

5. The fixing jig for the irregular sample vibration test as set forth in claim 1, wherein: the middle part of diaphragm (12) is run through and is fixed with third cylinder (15), the piston rod bottom of third cylinder (15) is equipped with top clamp plate (16), the corresponding bottom of top clamp plate (16) and the terminal surface that is located base (3) are equipped with the work piece backing plate.

6. The fixing jig for the irregular sample vibration test as set forth in claim 1, wherein: the one side of left side elasticity splint (19), right elasticity splint (8) is the design of circular arc concave surface, and is equipped with circular arc elastic backing plate (17) in the circular arc concave surface, the inside of left side elasticity splint (19), right elasticity splint (8) evenly is equipped with elastic ball body (9).