CN213238830U

CN213238830U - Zero point system of calibration instrument for three-coordinate measuring machine

Info

Publication number: CN213238830U
Application number: CN202022682230.4U
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: 2021-05-18
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a calibration instrument zero system for three-coordinate measuring machine, inside the recess of mechanism bottom installation on measuring table surface, mechanism upper portion and bottom adopt magnet directly to carry out the actuation, and the side on mechanism upper portion is encircleed and is provided with a lag section of thick bamboo. The utility model discloses a calibration instrument zero system for three-coordinate measuring machine, the location steel ball on V type constant head tank and the mechanism upper portion through the mechanism bottom cooperatees, the coincidence of location position mark, the installation is accomplished and can be begun to carry out calibration work, the zero position that does not need recalibration instrument, moreover, the steam generator is simple in structure, high durability and convenient installation, the service precision and the availability factor of measuring machine and the convenience of operation have been improved, when not using calibration instrument, can upwards stretch the urceolus, the latch pops out the below at the urceolus, the realization is protected the etalon, can press down elasticity latch when using and make it get into the inner tube, the urceolus put down can, simple structure convenient operation.

Description

Zero point system of calibration instrument for three-coordinate measuring machine

Technical Field

The utility model relates to a three-coordinate measuring machine technical field specifically is a calibration instrument zero system for three-coordinate measuring machine.

Background

A three-coordinate measuring machine, abbreviated as CMM, is widely used in the industries of machinery, electronics, instruments, plastics, and the like. A three-coordinate measuring machine is one of the most efficient methods of measuring and obtaining dimensional data because it can replace many surface measuring tools and expensive combination gauges and reduce the time required for complex measurement tasks from hours to minutes, an effect that other instruments cannot achieve. At present, the known measuring machine needs to calibrate an instrument during initial measurement; when the three-coordinate measuring machine is initially calibrated, the calibrating instrument system is installed in the measuring space of the measuring machine, after the calibration is completed, the calibrating instrument system is removed from the measuring space, and the measuring machine starts to carry out measuring work. As is known, when a measuring machine needs to be recalibrated or a stylus system required for measurement needs to be replaced, a calibration instrument system needs to be reinstalled into a measurement space and must be installed in an initial calibration position to calibrate the measuring machine; the customer is inconvenient especially in the use process, and the positioning of the calibration instrument system is changed, so that the use precision and the use efficiency of the measuring machine and the convenience of operation are influenced. The calibration instrument of traditional three-coordinate measuring machine is too simple, can't protect the calibration ball, so the calibration ball is when using the completion, and the calibration ball often can be because the collision takes place impaired to lead to the calibration ball to appear the condition that the calibration is inaccurate or can't use. In view of these drawbacks, it is necessary to design a zero point system for a calibration instrument of a three-coordinate measuring machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a calibration instrument zero system for three coordinate measuring machine has the light advantage of dismantling and lag protective element of magnet absorption, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a zero system of a calibration instrument for a three-coordinate measuring machine comprises an upper part of a mechanism, a bottom of the mechanism and a measuring working table, wherein a connecting thread column is arranged on the bottom surface of the bottom of the mechanism;

the upper part of the mechanism is connected above the bottom of the mechanism, an upper disc is arranged at the bottom end of the upper part of the mechanism, a positioning steel ball and an attraction magnet are arranged on the bottom surface of the upper disc, the upper disc is in adsorption connection with the bottom of the mechanism through the attraction magnet, and a first positioning position mark is arranged at the edge position of the upper disc;

the top on mechanism upper portion is provided with the calibration standard ware, and the side on mechanism upper portion encircles and is provided with a protective sleeve section of thick bamboo, and a protective sleeve section of thick bamboo is including the inner tube, and the inner tube cup joints the outer wall on mechanism upper portion, and the top both sides of inner tube are provided with the elasticity latch, and the urceolus has been cup jointed in the laminating of the outside of inner tube.

Preferably, the positions and the number of the positioning steel balls are matched with the V-shaped positioning grooves.

Preferably, the positions of the first and second positioning marks match.

Preferably, the elastic latch extends to the outer side of the inner cylinder in a relaxed state.

Preferably, the inner wall of the bottom end of the outer cylinder is provided with an inclined plane extending inwards, the outer wall of the top of the inner cylinder is provided with an inclined plane extending outwards, and the inclined planes of the outer cylinder and the inner cylinder are matched with each other.

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

the zero point system of the calibration instrument for the three-coordinate measuring machine is characterized in that the bottom of a mechanism is arranged in a groove on a measuring working table surface, the groove is designed as the zero point of the calibration instrument, a V-shaped positioning groove at the bottom of the mechanism is matched with a positioning steel ball at the upper part of the mechanism, a first positioning position mark and a second positioning position mark are superposed, the installation of the zero point system of the whole calibration instrument is completed, the measuring machine can start to carry out calibration work, the zero point position of the instrument does not need to be recalibrated, after the calibration is completed, the upper part of the mechanism can be directly and integrally moved away, the structure is simple, the installation is convenient, the manufacturing and maintenance cost is low, the use precision, the use efficiency and the operation convenience of the measuring machine are improved, a protective sleeve is arranged on the side surface of the upper part of the mechanism in, the calibration standard device is protected, the elastic latch can be pressed to enter the inner barrel when the calibration standard device is used, and then the outer barrel is put down, so that the calibration standard device is simple in structure and convenient to operate.

Drawings

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

FIG. 2 is a bottom structure view of the mechanism of the present invention;

FIG. 3 is a bottom plan view of the mechanism of the present invention;

FIG. 4 is a bottom side view of the mechanism of the present invention;

FIG. 5 is a schematic view of the upper disc structure of the present invention;

fig. 6 is a cross-sectional structure diagram of the protective sleeve of the present invention.

In the figure: 1. calibrating the standard; 2. an upper part of the mechanism; 21. an upper disk; 22. positioning a steel ball; 23. a first positional indicia; 24. attracting a magnet; 3. the bottom of the mechanism; 31. a V-shaped positioning groove; 32. a second positioning position mark; 33. connecting the threaded columns; 4. measuring the surface of a working table; 5. a protective sleeve; 51. an outer cylinder; 52. An inner barrel; 53. and (4) clamping teeth.

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. 1-6, a zero point system of a calibration instrument for a three-coordinate measuring machine includes an upper mechanism part 2, a bottom mechanism part 3 and a measuring table 4, wherein: the bottom surface of mechanism bottom 3 is provided with connecting thread post 33, presets the recess the same with mechanism bottom 3 size on the measurement table surface 4, be equipped with in the recess with connecting thread post 33 assorted screw hole, inside mechanism bottom 3 installed the recess on measurement table surface 4, this recess design is calibration instrument zero point, be provided with V type constant head tank 31 for diverging form on the top surface of mechanism bottom 3, the top surface border position of mechanism bottom 3 is provided with second location position mark 32. The upper part of the mechanism bottom 3 is connected with the mechanism upper part 2, the bottom end of the mechanism upper part 2 is provided with an upper disc 21, the bottom surface of the upper disc 21 is provided with a positioning steel ball 22 and an attraction magnet 24, the positions and the quantity of the positioning steel balls 22 are matched with the V-shaped positioning grooves 31, the upper disc 21 is connected with the mechanism bottom 3 in an adsorption way through the attraction magnet 24, the edge position of the upper disc 21 is provided with a first positioning position mark 23, the positions of the first positioning position mark 23 and a second positioning position mark 32 are matched, the V-shaped positioning grooves 31 of the mechanism bottom 3 are matched with the positioning steel balls 22 of the mechanism upper part 2, the first positioning position mark 23 and the second positioning position mark 32 are superposed, the installation of the whole zero point system of the calibrating instrument is completed, the measuring machine can start to perform calibration work, the whole upper part of the mechanism can be directly, The installation is convenient, and the manufacturing and maintenance cost is low. The top end of the upper part 2 of the mechanism is provided with a calibration standard 1, the side surface of the upper part 2 of the mechanism is provided with a protective sleeve 5 in a surrounding way, the protective sleeve 5 comprises an inner cylinder 52, the inner cylinder 52 is sleeved on the outer wall of the upper part 2 of the mechanism, two sides of the top part of the inner cylinder 52 are provided with elastic latch teeth 53, the elastic latch teeth 53 extend out of the outer side of the inner cylinder 52 in a loose state, the outer side of the inner cylinder 52 is jointed and sleeved with an outer cylinder 51, the inner wall of the bottom end of the outer cylinder 51 is provided with an inclined plane extending inwards, the outer wall of the top part of the inner, when the calibration instrument is not used, the outer cylinder 51 can be stretched upwards, the elastic latch teeth 53 are ejected out of the lower part of the outer cylinder 51, so that the calibration standard 1 can be protected, when in use, the elastic latch 53 can be pressed to enter the inner cylinder 52, and then the outer cylinder 51 is put down, so that the structure is simple and the operation is convenient.

In summary, in the zero point system of the calibration instrument for the three-coordinate measuring machine, the mechanism bottom 3 is installed inside the groove on the measuring table top 4, the groove is designed as the zero point of the calibration instrument, the V-shaped positioning groove 31 of the mechanism bottom 3 is matched with the positioning steel ball 22 of the mechanism upper part 2, the first positioning position mark 23 is overlapped with the second positioning position mark 32, the installation of the whole zero point system of the calibration instrument is completed, the measuring machine can start the calibration work, after the calibration is completed, the mechanism upper part can be directly and integrally removed, the structure is simple, the installation is convenient, the manufacturing and maintenance cost is low, the protecting sleeve 5 is arranged around the side surface of the mechanism upper part 2, when the calibration instrument is not used, the outer sleeve 51 can be upwards stretched, the elastic latch 53 is popped up and clamped below the outer sleeve 51 to protect the calibration standard 1, when the elastic latch 53 is pressed to enter the inner sleeve 52, and then the outer cylinder 51 is put down, so that the structure is simple and the operation is convenient.

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. A calibration instrument zero system for a three-coordinate measuring machine, comprising a mechanism upper part (2), a mechanism bottom part (3) and a measuring table top (4), characterized in that: the bottom surface of the mechanism bottom (3) is provided with a connecting threaded column (33), a groove with the same size as the mechanism bottom (3) is preset on the measuring working table top (4), a threaded hole matched with the connecting threaded column (33) is formed in the groove, the mechanism bottom (3) is installed in the groove on the measuring working table top (4), V-shaped positioning grooves (31) are formed in the top surface of the mechanism bottom (3) in a divergent mode, and a second positioning position mark (32) is arranged at the edge position of the top surface of the mechanism bottom (3); the upper part of the mechanism bottom (3) is connected with a mechanism upper part (2), the bottom end of the mechanism upper part (2) is provided with an upper disc (21), the bottom surface of the upper disc (21) is provided with a positioning steel ball (22) and an attraction magnet (24), the upper disc (21) is in adsorption connection with the mechanism bottom (3) through the attraction magnet (24), and the edge position of the upper disc (21) is provided with a first positioning mark (23);

the top of mechanism upper portion (2) is provided with calibration standard ware (1), and the side of mechanism upper portion (2) is encircleed and is provided with protective sleeve (5), and protective sleeve (5) are including inner tube (52), and inner tube (52) cup joint the outer wall in mechanism upper portion (2), and the top both sides of inner tube (52) are provided with elasticity latch (53), and outer tube (51) have been cup jointed in the laminating of the outside of inner tube (52).

2. A calibration instrument zero point system for a three coordinate measuring machine according to claim 1 wherein: the positions and the number of the positioning steel balls (22) are matched with the V-shaped positioning grooves (31).

3. A calibration instrument zero point system for a three coordinate measuring machine according to claim 1 wherein: the positions of the first positioning mark (23) and the second positioning mark (32) are matched.

4. A calibration instrument zero point system for a three coordinate measuring machine according to claim 1 wherein: the elastic latch (53) extends out of the inner cylinder (52) in a relaxed state.

5. A calibration instrument zero point system for a three coordinate measuring machine according to claim 1 wherein: the inner wall of the bottom end of the outer cylinder (51) is provided with an inclined plane extending inwards, the outer wall of the top of the inner cylinder (52) is provided with an inclined plane extending outwards, and the inclined planes of the outer cylinder (51) and the inner cylinder (52) are matched with each other.