CN213575176U

CN213575176U - Air bearing disc spring mechanism for three-coordinate measuring machine

Info

Publication number: CN213575176U
Application number: CN202022682942.6U
Authority: CN
Inventors: 曹云祥; 薛军鹏; 董香香
Original assignee: Xi'an Depsecco Measuring Equipment Co ltd
Current assignee: Xi'an Depsecco Measuring Equipment Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-06-29
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses an air supporting bearing dish spring mechanism for three-coordinate measuring machine, including granite guide rail and removal part, granite guide rail upper surface is provided with air supporting bearing mechanism, and air supporting bearing mechanism one side is provided with the air inlet, and the positioning seat upper end is provided with the connection steel ball. This air bearing dish spring mechanism for three-coordinate measuring machine, through installing the belleville spring in the air bearing mechanism, through its different pile methods and different pile quantities, make its rigidity and the quality phase-match of moving as a whole part with the air supporting piece, before reaching the measuring machine and producing the motion, make the quality of moving as a whole part suit with the power that the air bearing mechanism produced, make the start-up and the operation that the three-coordinate measuring machine can be steady, the effectual stability that improves in the motion process of three-coordinate measuring machine, and the damage of granite guide rail and air bearing mechanism of three-coordinate measuring machine has been protected, the stability of this device has been improved, service life has been prolonged.

Description

Air bearing disc spring mechanism for three-coordinate measuring machine

Technical Field

The utility model relates to a three-coordinate measuring machine technical field specifically is an air supporting bearing dish spring mechanism for three-coordinate measuring machine.

Background

At present, the well-known air floatation applied to the three-coordinate measuring machine is an air floatation bearing mechanism. As is known, no matter whether the air bearing is square air bearing or circular air bearing, the air bearing is connected with the bearing part through a jackscrew mechanism, the tail end of the jackscrew mechanism is a jacking steel ball which is matched with a ball socket on the air bearing to meet the use requirement, the structure has the defect that after the air bearing is ventilated, strict requirements are required for the air bearing to reach the required floating height, if the floating height does not reach the floating height required by movement, in the process of generating a movement command by a three-coordinate measuring machine, the three-coordinate overall moving part is not suspended, the movement command causes the three-coordinate movement to cause the damage of an air bearing block or the damage of a granite guide rail, and the precision of the three-coordinate overall moving part is also seriously influenced. In view of these drawbacks, it is necessary to design an air bearing disc spring mechanism for a three-coordinate measuring machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air supporting bearing dish spring mechanism for three-coordinate measuring machine, through installing the belleville spring in air supporting bearing mechanism, through its different pile method and the different quantity of closed assembly, make its rigidity and the quality phase-match of moving as a whole part with the air supporting piece, before reaching the measuring machine and producing the motion, the quality that makes moving as a whole part suits with the power that air supporting bearing mechanism produced, make the start-up and the operation that three-coordinate measuring machine can be steady, the stationarity in the motion process of effectual improvement three-coordinate measuring machine, and the granite guide rail of having protected three-coordinate measuring machine and the damage of air supporting bearing mechanism, the stability of this device has been improved, service life is prolonged, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme:

an air bearing disc spring mechanism for a three-coordinate measuring machine comprises a granite guide rail and a moving part, wherein an air bearing mechanism is arranged on the upper surface of the granite guide rail, an air inlet is formed in one side of the air bearing mechanism, an installation groove is formed in the center of the upper surface of the air bearing mechanism, a positioning seat is embedded in the installation groove, and a connecting steel ball is arranged at the upper end of the positioning seat;

the air-floating jackscrew is embedded in the moving part, a jackscrew shaft sleeve is sleeved outside the air-floating jackscrew, the bottom of the jackscrew shaft sleeve is fixedly connected with the moving part through a bolt, the bottom of the inner wall of the jackscrew shaft sleeve is fixedly connected with the spring base through a bolt, a gasket is arranged on the upper surface of the spring base, the upper surface of the spring base is fixedly connected with the disc spring, clamping pieces are respectively arranged at the bottom ends of the inner walls of the jackscrew shaft sleeve, and the disc spring is fixed on the upper surface of the. Preferably, the center of the upper part of the positioning seat is provided with a through hole, the edge of the upper end of the through hole is a conical surface, and the connecting steel ball is placed in the conical surface.

Preferably, the lower end of the air-floating jackscrew is respectively pressed into the disc spring and the jackscrew shaft sleeve to be contacted with the connecting steel ball, and the contact surface of the air-floating jackscrew and the connecting steel ball is a conical surface.

Preferably, the upper surface of the spring base is provided with at least one disc spring, the disc springs are sequentially stacked on the spring base, and the upper surface of the spring base is provided with a top block corresponding to the inclination angle of the disc springs.

Preferably, the upper surface of the granite guide rail and the lower surface of the air bearing mechanism form a pressure air cavity, and the gap between the granite guide rail and the air bearing mechanism is 6-8 um.

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

the air bearing disc spring mechanism for the three-coordinate measuring machine is characterized in that compressed air with certain pressure is communicated with the air bearing mechanism through an air inlet on the air bearing mechanism, the upper surface of a granite guide rail and the lower surface of the air bearing mechanism form a pressure air cavity, bearing capacity is transmitted to a moving part through a connecting steel ball, the number and the size of disc springs are selected according to the quality and the matching degree of the moving part, the load is large, the stroke is short, the required space is small, the combination and the use are convenient, the maintenance and the replacement are easy, the economic safety is high, the stability of each rigid body in the dynamic measurement process of the device can be ensured, the motion flexibility and the sensitivity of the granite guide rail are ensured, the accuracy of a measuring place is improved, the contact surface of an air bearing jackscrew and the connecting steel ball and the upper surface of a positioning seat are set to be conical surfaces, the positioning effect is realized, the three-coordinate measuring machine has the advantages that the three-coordinate measuring machine is matched with the rigidity of the air floating block and the mass of the whole moving part through different stacking methods and different stacking quantities, so that the quality of the whole moving part is matched with the force generated by the air floating bearing mechanism before the measuring machine moves, the three-coordinate measuring machine can be stably started and operated, the stability of the three-coordinate measuring machine in the moving process is effectively improved, the granite guide rail of the three-coordinate measuring machine and the damage of the air floating bearing mechanism are protected, the three-coordinate measuring machine is simple in structure and low in cost, can be applied to various small, medium and large three-coordinate measuring machines, the stability of the three-coordinate measuring machine is improved, the application range is enlarged, the measuring precision is improved, and the service life is prolonged.

Drawings

FIG. 1 is an exploded view of a part of the present invention;

FIG. 2 is a front view of the overall structure of the present invention;

FIG. 3 is a front sectional view of the overall structure of the present invention;

FIG. 4 is a side sectional view of the overall structure of the present invention;

fig. 5 is a side sectional view of the partial structure of the present invention.

In the figure: 1. a granite guide rail; 2. an air bearing mechanism; 3. an air inlet; 4. mounting grooves; 5. positioning seats; 6. connecting steel balls; 7. a moving member; 8. air floatation jackscrew; 9. a jackscrew shaft sleeve; 10. a spring mount; 11. a gasket; 12. a disc spring; 13. and a clamping member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, an air bearing disc spring mechanism for a three-coordinate measuring machine comprises a granite guide rail 1 and a moving part 7, wherein an air bearing mechanism 2 is arranged on the upper surface of the granite guide rail 1, an air inlet 3 is arranged on one side of the air bearing mechanism 2, compressed air with certain pressure is communicated with the air bearing mechanism 2 through the air inlet 3 on the air bearing mechanism 2, the upper surface of the granite guide rail 1 and the lower surface of the air bearing mechanism 2 form a pressure air chamber, the gap between the granite guide rail 1 and the air bearing mechanism 2 is 6-8 um, an installation groove 4 is arranged at the center of the upper surface of the air bearing mechanism 2, a positioning seat 5 is embedded in the installation groove 4, a connecting steel ball 6 is arranged at the upper end of the positioning seat 5, a through hole is arranged at the center of the upper end of the positioning seat 5, the edge of, through connecting the steel ball 6, transmit the bearing capacity to the moving part 7, the moving part 7 is embedded with the air supporting jackscrew 8, the air supporting jackscrew 8 is sleeved with the jackscrew shaft sleeve 9, the bottom of the jackscrew shaft sleeve 9 is fixedly connected with the moving part 7 through the bolt, the bottom of the inner wall of the jackscrew shaft sleeve 9 is fixedly connected with the spring base 10 through the bolt, the upper surface of the spring base 10 is provided with the gasket 11 for protecting the disc spring 12, the service life is prolonged, the upper surface of the spring base 10 is fixedly connected with the disc spring 12, the upper surface of the spring base 10 is provided with at least one disc spring 12, the quantity and the size of the disc spring 12 are selected, the disc spring 12 is determined according to the quality and the matching degree of the moving part 7, the disc spring 12 is sequentially stacked on the spring base 10, the upper surface of the spring base 10 is provided with the jacking block corresponding, the required space is small, the combination and use are convenient, the maintenance and the reloading are easy, the economic safety is high, thereby the stability of each rigid body in the dynamic measurement process of the device can be ensured, the movement flexibility and the sensitivity of the air-floating guide rail are ensured, the accuracy of the measurement is improved, the lower end of the air-floating jackscrew 8 is respectively pressed into the disc spring 12 and the jackscrew shaft sleeve 9 to be contacted with the connecting steel ball 6, the contact surface of the air-floating jackscrew 8 and the connecting steel ball 6 is set to be a conical surface to play a role in positioning, the bottom end of the inner wall of the jackscrew shaft sleeve 9 is respectively provided with a clamping piece 13, the disc spring 12 is fixed on the upper surface of the spring base 10 by the clamping piece 13, the whole body is more stable, the rigidity of the air-floating block is matched with the quality of the whole moving part 7 by the disc spring 12 arranged in the, the quality of the integral moving part 7 is adapted to the force generated by the air bearing mechanism 2, the three-coordinate measuring machine can be stably started and operated, the effect of protecting the air bearing mechanism 2 and the granite guide rail 1 is achieved, the moving process is stable, the precision of the measuring machine is guaranteed more easily, the stability of the device is improved, and the service life is prolonged.

In conclusion, the air bearing disc spring mechanism for the three-coordinate measuring machine is characterized in that compressed air with certain pressure is communicated with the air bearing mechanism 2 through the air inlet 3 on the air bearing mechanism 2, the upper surface of the granite guide rail 1 and the lower surface of the air bearing mechanism 2 form a pressure air cavity, bearing force is transmitted to the moving part 7 through the connecting steel ball 6, the number and the size of the disc springs 12 are selected and determined according to the quality and the matching degree of the moving part 7, the load is large, the stroke is short, the required space is small, the combination and the use are convenient, the maintenance and the replacement are easy, the economic safety is high, the stability of each rigid body in the dynamic measurement process of the device can be ensured, the motion flexibility and the sensitivity of the granite guide rail 1 are ensured, the accuracy of the measurement is improved, the contact surface of the air bearing jackscrew 8 with the connecting steel ball 6 and the upper, the positioning device has the advantages that the positioning effect is achieved, the disk springs 12 arranged in the air bearing mechanism 2 are matched with the rigidity of the air floating block and the mass of the integral moving part 7 through different stacking methods and different stacking quantities, so that the aim that the mass of the integral moving part 7 is matched with the force generated by the air bearing mechanism 2 before the measuring machine moves is achieved, the three-coordinate measuring machine can be stably started and operated, the stability of the three-coordinate measuring machine in the moving process is effectively improved, the granite guide rail 1 of the three-coordinate measuring machine and the air bearing mechanism 2 are protected from being damaged, and the device is simple in structure, low in cost, capable of being applied to various small, medium and large three-coordinate measuring machines, improves the stability of the device, improves the application range, improves the measuring precision and prolongs the service life.

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

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an air supporting bearing dish spring mechanism for three-coordinate measuring machine, includes granite guide rail (1) and moving part (7), its characterized in that: an air bearing mechanism (2) is arranged on the upper surface of the granite guide rail (1), an air inlet (3) is formed in one side of the air bearing mechanism (2), an installation groove (4) is formed in the center of the upper surface of the air bearing mechanism (2), a positioning seat (5) is embedded in the installation groove (4), and a connecting steel ball (6) is arranged at the upper end of the positioning seat (5);

the air-floating jack screw is embedded in the moving part (7), a jack screw shaft sleeve (9) is sleeved outside the air-floating jack screw (8), the bottom of the jack screw shaft sleeve (9) is fixedly connected with the moving part (7) through a bolt, the bottom of the inner wall of the jack screw shaft sleeve (9) is fixedly connected with the spring base (10) through a bolt, a gasket (11) is arranged on the upper surface of the spring base (10), the upper surface of the spring base (10) is fixedly connected with the disc spring (12), clamping pieces (13) are respectively arranged at the bottom of the inner wall of the jack screw shaft sleeve (9), and the disc spring (12) is fixed on the upper surface of the spring base (10) by the clamping pieces (13.

2. The air bearing disc spring mechanism for a three coordinate measuring machine of claim 1, wherein: the center of the upper part of the positioning seat (5) is provided with a through hole, the edge of the upper end of the through hole is a conical surface, and the connecting steel ball (6) is placed in the conical surface.

3. The air bearing disc spring mechanism for a three coordinate measuring machine of claim 1, wherein: the lower end of the air-floating jackscrew (8) is respectively pressed into the disc spring (12) and the jackscrew shaft sleeve (9) to be contacted with the connecting steel ball (6), and the contact surface of the air-floating jackscrew (8) and the connecting steel ball (6) is a conical surface.

4. The air bearing disc spring mechanism for a three coordinate measuring machine of claim 1, wherein: the spring seat is characterized in that at least one disc spring (12) is arranged on the upper surface of the spring seat (10), the disc springs (12) are sequentially stacked on the spring seat (10), and the upper surface of the spring seat (10) is provided with a top block corresponding to the inclination angle of the disc springs (12).

5. The air bearing disc spring mechanism for a three coordinate measuring machine of claim 1, wherein: the granite guide rail (1) upper surface constitutes the pressure air cavity with air bearing mechanism (2) lower surface, and granite guide rail (1) and air bearing mechanism (2) clearance are 6 ~ 8 um.