CN210037129U

CN210037129U - Auxiliary guide bearing device of vibration table

Info

Publication number: CN210037129U
Application number: CN201921124662.4U
Authority: CN
Inventors: 叶腾波; 蔡爱军
Original assignee: Suzhou Branch Testing Equipment Ltd Co Projects
Current assignee: Suzhou Branch Testing Equipment Ltd Co Projects
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-02-07
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses an auxiliary guiding and bearing device of a vibration table, which comprises an upper guiding device and a lower guiding device, wherein the lower guiding device comprises a guiding shaft inserted in a vibration main body; the upper guide device comprises a plurality of air airbags and a plurality of limiting components, and the upper surfaces of the air airbags are contacted with the table top; all the air airbags are communicated through the same pipeline; the limiting assembly comprises a base, a limiting piece, a pushing plate and a butt plate, and the base is fixed with the upper surface of the vibration main body; the pushing plate is fixed with the base, and the butt plate is fixed with the side wall of the table top; the butt plate is provided with a plurality of grooves, the butt plate is provided with a convex edge, and the convex edge can be embedded in the grooves; the limiting piece can roll between the abutting plate and the butt plate. The utility model discloses an auxiliary positioning direction to the mesa has reduced guider's wearing and tearing.

Description

Auxiliary guide bearing device of vibration table

Technical Field

The utility model relates to a vibrating equipment field, concretely relates to supplementary direction of shaking table bears device.

Background

In the fields of electronics, aviation, automobiles and the like, along with higher requirements on product precision and quality, the requirement on vibration precision is higher and higher, and in order to detect the capability of the device for bearing environmental vibration in the process of assembly, transportation or action execution, the vibration test is utilized to detect the anti-seismic performance.

In order to satisfy the vibration precision among the prior art, can set up the guide system in vibrating device's inside, improve the vibration and fix a position if the guide post that utilizes to have central gasbag, but above-mentioned positioning system can the mesa and place the test piece on the mesa and can apply for guide post with pressure at the during operation, if the center emergence skew of mesa and test piece, can make the guide system take place the moment of flexure at the during operation to can be to guider's damage.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a shaking table assistance-localization real-time direction bears device, and it leads through the assistance-localization real-time to the mesa, has reduced guider's wearing and tearing.

In order to solve the technical problem, the utility model provides an auxiliary guiding and bearing device of a vibration table, which is used for limiting the movement of a table top and comprises an upper guiding device and a lower guiding device, wherein the lower guiding device comprises a guiding shaft inserted in a vibration main body; the upper guide device comprises a plurality of air airbags and a plurality of limiting assemblies, and the upper surfaces of the air airbags are contacted with the table top to support the table top; all the air airbags are communicated through the same pipeline so as to reduce the shift of the center of gravity of the table top; the limiting assembly comprises a base, a limiting piece, a pushing plate and a butt plate, and the base is fixed with the upper surface of the vibration main body; the abutting plate is fixed with the base, and the abutting plate is fixed with the side wall of the table top; the butt plate is provided with a plurality of protruding blocks, the butt plate is provided with a plurality of convex edges, and the protruding blocks and all the convex edges can be embedded in the grooves; when the table top moves, the limiting piece can roll between the abutting plate and the abutting plate so as to limit the moving direction of the table top.

Furthermore, a plurality of supporting plates are arranged on the lower surface of the table top and are uniformly distributed; two adjacent support plates form a containing space for placing the air bag.

Further, the locating part is cylindrical, just the through-hole has been seted up along its axial to the locating part.

Furthermore, the limiting member is made of an elastic material.

Further, the air bag is connected with the vibration main body through a fixing seat, the fixing seat is detachably connected with the vibration main body, and the fixing seat is provided with an air conveying groove for the pipeline to be inserted.

Furthermore, the lower surface of the table board is provided with a surrounding edge which can surround the upper end of all the air airbags.

Further, a protection pad is arranged on the upper surface of the air bag.

Furthermore, the two sides of the pushing plate are symmetrically provided with baffles, and the baffles are in contact with the end parts of the limiting parts.

Furthermore, the air bags and the limiting assemblies are uniformly distributed about the central axis of the table board respectively.

Furthermore, a guide wheel is further arranged in the vibration main body, and the guide wheel is in contact with the outer side wall of the guide shaft.

The utility model has the advantages that:

the upper cover is provided with a plurality of air airbags which can be contacted with the table top, so that the table top can be supported by the air airbags; all the air airbags are communicated through the same pipeline, so that the pressure inside each air airbag is approximately the same, and the upper end parts of the air airbags are approximately positioned in the same plane; the upward supporting force applied to the table top by the air bag arranged below the table top can reduce the pressure applied to the guide shaft by the table top; meanwhile, in the process of carrying out fatigue test on the test piece, when the gravity center of the table top is deviated, the gravity of the table top and the test piece is applied to the air bag, so that the acting force on the guide shaft can be reduced, the bending moment of the guide shaft during movement can be reduced, the service life of the guide shaft is prolonged, the requirement on the precision of the guide shaft can be reduced, and the processing difficulty is reduced;

the position deviation of the table top in the movement process can be reduced by utilizing the pushing force applied to the table top by the limiting assembly, so that the movement position of the table top is more accurate; meanwhile, the deflection moment generated on the guide shaft when the center of gravity of the table top and the test piece shifts is reduced, so that the service life of the guide shaft can be prolonged.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

fig. 4 is a half sectional view of the present invention.

The reference numbers in the figures illustrate: 1. a table top; 11. surrounding edges; 12. a support plate; 2. an air bladder; 21. a fixed seat; 211. a gas transmission groove; 3. a limiting component; 31. a base; 32. a limiting member; 321. a groove; 322. a through hole; 33. pushing the plate; 331. a baffle plate; 332. a bump; 34. a butt plate; 341. a rib; 4. vibrating the body; 41. a guide shaft; 42. a guide wheel.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1 and 4, an embodiment of the auxiliary guiding and bearing device for a vibration table of the present invention is mainly used to limit the movement of the table top 1, so as to improve the accuracy of the fatigue test of the test piece and reduce the wear of the vibration table itself. The auxiliary guide means comprises an upper guide means and a lower guide means, the lower guide means is arranged inside the vibration main body 4 and comprises a guide shaft 41 and a guide wheel 42, and the guide shaft 41 can support the table top 1 and transmit the exciting force. The guide wheel 42 is in contact with the outer side wall of the guide shaft 41, so that the direction of movement of the guide shaft 41 can be restricted by the guide wheel 42. Meanwhile, in order to meet the requirements of a standardized factory building to reduce the height and the size of the vibration table, the central air bag can be omitted below the guide shaft 41. Meanwhile, the stroke of the guide shaft 41 can be effectively increased by removing the central air bag, and meanwhile, the deviation and the performance reduction caused by instability and flexibility of the central air bag can be reduced.

Referring to fig. 1 and 2, the upper guide means includes a plurality of air bags 2 and a plurality of stopper assemblies 3, and all of the air bags 2 are disposed on the upper surface of the vibration main body 4 and can be contacted with the lower surface of the table top 1 to support the table top 1. All the air bags 2 are communicated through the same pipeline, so that the pressure inside each air bag 2 is approximately the same, and the upper end parts of the air bags 2 are ensured to be approximately positioned in the same plane. The upward supporting force applied to the table top 1 by the air bag 2 disposed below the table top 1 can be reduced, so that the pressure applied to the guide shaft 41 by the table top 1 can be reduced. In the process of carrying out fatigue test to the test piece, when the focus of mesa 1 takes place to squint, the gravity of mesa 1 and test piece is exerted on air bag 2 to can reduce the effort that guiding axle 41 received, can reduce the moment of flexure when guiding axle 41 moves, thereby prolong guiding axle 41's life, also can reduce the requirement to guiding axle 41 precision, reduced the processing degree of difficulty.

Referring to fig. 1 and 2, the air bag 2 is coupled to the vibration body 4 through the fixing base 21, and the fixing base 21 and the vibration body 4 are detachably coupled through fastening bolts, thereby facilitating the installation and removal of the air bag 2. The fixing base 21 is provided with an air transmission groove 211 for inserting a pipeline, so that the use is convenient.

Referring to fig. 1 and 2, the lower surface of the table top 1 is provided with a surrounding edge 11, the surrounding edge 11 can be disposed around the entire air bladder 2, and the surrounding edge 11 can restrict the upper end portion of the air bladder 2, thereby restricting the displacement of the position of the air bladder 2 during the test to increase the stability during the test. Meanwhile, the upper surface of the air airbag 2 is provided with a protection pad, and the protection pad can avoid the direct contact between the air airbag 2 and the table board 1, so that the air airbag 2 is protected to a certain extent. The material of the protective pad in this embodiment is preferably rubber.

Referring to fig. 1, a plurality of support plates 12 are fixedly disposed on the lower surface of the table top 1, and the support plates 12 can be inserted into the vibration main body 4 to transmit an exciting force. All the support plates 12 are uniformly distributed around the axis of the vibration main body 4, and two adjacent support plates 12 form an accommodating space capable of accommodating the air bag 2. Before the test, the number of the air airbags 2 is selected according to the mass of the test piece, the air airbags 2 are respectively fixed in the accommodating space, and meanwhile, all the air airbags 2 are uniformly distributed about the central axis of the vibration main body 4 in order to keep the stress of the table board 1 uniform.

Referring to fig. 1 and 3, the limiting assembly 3 includes a base 31, a limiting member 32, a pushing plate 33 and a butt plate 34, the base 31 is fixedly connected to the upper surface of the vibration body 4 through a fastening bolt, and the pushing plate 33 is fixedly connected to the base 31. The butt joint plate 34 is fixedly connected with the outer side wall of the table top 1, and the position of the butt joint plate corresponds to the position of the butt joint plate 34. The limiting piece 32 is located between the pushing plate 33 and the abutting plate 34, and when the table top 1 moves in the testing process, the limiting piece 32 can roll between the pushing plate 33 and the abutting plate 34. In order to make the thrust applied to the table top 1 by the limiting members 32 more uniform, the limiting members 3 are uniformly distributed about the central axis of the vibration main body 4 in the present embodiment.

Referring to fig. 1 and 3, in order to increase the contact between the limiting member 32 and the abutting plate 33 and the abutting plate 34, the limiting member 32 is disposed in a cylindrical shape. Meanwhile, the limiting piece 32 is made of elastic material, so that the stability of the table top 1 during movement is guaranteed, and meanwhile, the damage to the abutting push plate 33 and the abutting plate 34 is reduced. Meanwhile, the limiting member 32 is provided with a through hole 322 along the axial direction thereof, so that the elasticity of the limiting member 32 can be further increased.

Referring to fig. 1 and 3, the outer side wall of the limiting member 32 is provided with a plurality of grooves 321 around the axis thereof, the upper end portion of the pushing plate 33 is integrally formed with a protrusion 332, and the abutting plate 34 is provided with a plurality of ribs 341, and the protrusion 332 and all the ribs 341 can be embedded into the grooves 321, so that the stability of the limiting member 32 during movement is increased, and the limiting member 32 is prevented from being separated from the pushing plate 33 and the abutting plate 34. In addition, the two sides of the pushing plate 33 are symmetrically provided with the baffle plates 331, and both the baffle plates 331 can contact with both sides of the limiting member 32, so that the stability of the limiting member 32 during movement is further increased.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. An auxiliary guide bearing device of a vibration table is used for limiting the movement of a table top and is characterized by comprising an upper guide device and a lower guide device, wherein the lower guide device comprises a guide shaft inserted in a vibration main body; the upper guide device comprises a plurality of air airbags and a plurality of limiting assemblies, and the upper surfaces of the air airbags are contacted with the table top to support the table top; all the air airbags are communicated through the same pipeline so as to reduce the shift of the center of gravity of the table top; the limiting assembly comprises a base, a limiting piece, a pushing plate and a butt plate, and the base is fixed with the upper surface of the vibration main body; the abutting plate is fixed with the base, and the abutting plate is fixed with the side wall of the table top; the butt plate is provided with a plurality of protruding blocks, the butt plate is provided with a plurality of convex edges, and the protruding blocks and all the convex edges can be embedded in the grooves; when the table top moves, the limiting piece can roll between the abutting plate and the abutting plate so as to limit the moving direction of the table top.

2. The auxiliary guide bearing device for the vibrating table as claimed in claim 1, wherein a plurality of support plates are arranged on the lower surface of the table top, and the support plates are uniformly distributed; two adjacent support plates form a containing space for placing the air bag.

3. A vibration table auxiliary guide bearing device as claimed in claim 1, wherein said position-limiting member is provided in a cylindrical shape, and said position-limiting member is provided with a through hole along an axial direction thereof.

4. A vibration table auxiliary guide bearing device as claimed in claim 3 wherein said stop member is made of an elastic material.

5. The auxiliary guide bearing device for the vibrating table as claimed in claim 1, wherein the air bag is connected with the vibrating main body through a fixing seat, the fixing seat is detachably connected with the vibrating main body, and the fixing seat is provided with an air transmission groove for inserting the pipeline.

6. A vibration table auxiliary guide bearing device as claimed in claim 1 wherein the lower surface of said table top is provided with a skirt which can be disposed around the upper end of all of said air bladders.

7. A vibration table auxiliary guide bearing device as claimed in claim 1 wherein the upper surface of said air bladder is provided with a protective pad.

8. A vibration table auxiliary guide bearing device as claimed in claim 1, wherein the push-resisting plate is symmetrically provided with baffle plates at both sides, and the baffle plates are in contact with the end parts of the limiting members.

9. A vibration table auxiliary guide bearing device as claimed in claim 1 wherein said air bladder and said spacing assembly are disposed equispaced about the central axis of said table top respectively.

10. A vibration table auxiliary guide bearing device as claimed in claim 1, wherein a guide wheel is further provided in the vibration main body, and the guide wheel is in contact with an outer side wall of the guide shaft.