CN212363079U

CN212363079U - High-precision measurement and calibration device

Info

Publication number: CN212363079U
Application number: CN202021478317.3U
Authority: CN
Inventors: 刘建辉
Original assignee: Shenzhen Ait Precision Technology Co ltd
Current assignee: Shenzhen Ait Precision Technology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-01-15
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a high-precision measurement and calibration device, which comprises a base, a detecting head connected with the base in a sliding way, a movable terminal fixed relative to the detecting head, and a fixed terminal fixed on the base; the fixed terminal and the movable terminal are oppositely arranged; the probe is used for being abutted against a measuring point of a measured object so as to drive the movable terminal to be in contact with the fixed terminal to conduct or separate a disconnection signal. The utility model is simple in operation, with low costs, precision height, compact structure.

Description

High-precision measurement and calibration device

Technical Field

The utility model relates to a measure and calibration technical field, especially relate to a high accuracy measurement calibrating device.

Background

The precise automatic equipment provides very powerful manufacturing conditions for assembling and testing precise products, and meanwhile, precise measurement and calibration of equipment systems become necessary requirements.

The existing equipment height and flatness measurement and calibration adopts tools such as calipers, height gauges and dial gauges for measurement and calibration or uses a high-precision laser range finder, and the measurement and calibration tools have the problems of inconvenient operation, high requirements on experience and skill of an operator, high cost and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy measurement calibrating device, easy operation, with low costs, precision height, compact structure.

In order to realize the purpose, the following technical scheme is adopted:

a high-precision measurement and calibration device comprises a base, a detecting head connected to the base in a sliding manner, a movable terminal fixed relative to the detecting head, and a fixed terminal fixed on the base; the fixed terminal and the movable terminal are oppositely arranged; the probe is used for being abutted against a measuring point of a measured object so as to drive the movable terminal to be in contact with the fixed terminal to conduct or separate a disconnection signal.

Preferably, the device further comprises an elastic member for resetting the probe after the probe abuts against the object to be detected.

Preferably, the elastic member is fixed by an elastic member fixing seat.

Preferably, a movable seat is arranged between the detecting head and the movable terminal, and the detecting head is detachably arranged at one end of the movable seat.

Preferably, the movable seat is connected with the base through a sliding module.

Preferably, the base is provided with an accommodating groove, and the movable seat is arranged in the accommodating groove through the sliding module; the holding tank is provided with a slotted hole penetrating to the surface of the base corresponding to the probe and the movable terminal respectively.

Preferably, the base is further fixed with a moving platform at the bottom thereof, and the base drives the probe to realize displacement in the X-axis direction, the Y-axis direction and the Z-axis direction through the moving platform.

Preferably, the movable terminal and the fixed terminal are respectively connected with the electric control system through signal lines.

Adopt above-mentioned scheme, the beneficial effects of the utility model are that: the probe drives the movable terminal to be in contact with the fixed terminal to conduct or separate a disconnection signal through the abutting of the probe and a measuring point of a measured object, so that the measurement calibration is stopped to obtain a measurement calibration result, and the device is simple to operate, low in cost, high in precision and compact in structure.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the motion platform of the present invention;

FIG. 3 is a side view of the corner structure of FIG. 2;

FIG. 4 is a perspective view of the internal structure of FIG. 2;

wherein the figures identify the description:

1-a base, 2-a probe head,

3-a movable terminal, 4-a fixed terminal,

5-elastic piece, 6-elastic piece fixing seat,

7-a movable seat, 8-a sliding module,

9-a motion platform, 10-a signal line,

11-the object to be measured.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, the present invention provides a high-precision measurement calibration apparatus, which includes a base 1, a probe 2 slidably connected to the base 1, a movable terminal 3 fixed relative to the probe 2, and a fixed terminal 4 fixed on the base 1; the fixed terminal 4 is arranged opposite to the movable terminal 3; the probe 2 is used for abutting against a measuring point of a measured object 11 to drive the movable terminal 3 to be in contact with the fixed terminal 4 to conduct or separate an off signal.

In the utility model, the background can receive the contact conduction signal of the movable terminal 3 and the fixed terminal 4 as the judgment basis for stopping the measurement calibration, and the detecting head 2 drives the movable terminal 3 to be close to the fixed terminal 4 when being abutted by the measured object 11; the following embodiment may also use the disconnection signal as a determination basis for stopping measurement calibration when the background receives the disconnection signal for separating the movable terminal 3 from the fixed terminal 4, and at this time, the probe 2 is abutted by the object to be measured 11 to drive the movable terminal 3 to be away from the fixed terminal 4.

The elastic member 5 is preferably, but not limited to, a spring, the elastic member 5 is fixedly mounted through an elastic member fixing seat 6, and a movable seat 7 is disposed between the probe 2 and the movable terminal 3. When the probe is not in the measurement calibration state, the spring is in the extension state, and an upward force is applied to the probe 2 through the movable seat 7; when the detecting head 2 is abutted by the measured object 11, the detecting head 2 moves downwards and compresses the spring through the movable seat 7, and after the measurement and calibration are completed, the detecting head 2 resets under the elastic force of the spring.

The movable seat 7 is of a vertically placed Z-shaped structure, the free end (top) of one Z-shaped transverse end extends towards the top of the base 1, the top of the Z-shaped transverse end is provided with a groove which is detachably connected with the detecting head 2, the bottom of the Z-shaped transverse end is provided with a groove which is abutted to the elastic piece 5, the fixed seat of the elastic piece 5 is arranged below the bottom of the Z-shaped transverse end, the lower end of the elastic piece 5 is fixed on the fixed seat 6 of the elastic piece, the upper end of the elastic piece 5 extends to the groove at the bottom of the Z-shaped transverse end for positioning, the elastic piece 5 is prevented from separating from the movable seat 7 in the stretching process, and the whole structure is; meanwhile, the movable seat 7 is connected with the base 1 through a sliding module 8, and the sliding module 8 is arranged on the outer side of the Z-shaped transverse end. The movable terminal 3 is arranged on the top of the other Z-shaped transverse end, and the fixed terminal 4 is arranged above the movable terminal 3.

The connecting end of the detecting head 2 is provided with a screw thread, a threaded hole matched with the screw thread is arranged in the movable seat 7, and the detecting head 2 is connected with the threaded hole in the movable seat 7 through the screw thread.

The sliding module 8 comprises a sliding block detachably connected with the movable seat 7 and a sliding rail in sliding connection with the sliding block; the slide rail is detachably installed in the holding tank inside wall of base 1.

An accommodating groove is formed in the base 1, and the movable seat 7 is arranged in the accommodating groove through the sliding module 8. In order to facilitate an operator to observe the contact or disconnection condition of the movable terminal 3 and the fixed terminal 4, the accommodating groove is provided with a slotted hole at the position corresponding to the movable terminal 3; meanwhile, the connecting end of the detecting head 2 needs to enter and exit the accommodating groove in the ascending or descending process, so that a groove hole is formed in the position, corresponding to the detecting head 2, of the accommodating groove.

The bottom of the base 1 is also fixed with a moving platform 9, and the base 1 drives the detecting head 2 to realize displacement in the X-axis direction, the Y-axis direction and the Z-axis direction through the moving platform 9. The motion platform 9 comprises an X-axis slide block, a Y-axis slide block and a Z-axis slide block which are sequentially connected in a sliding manner, and driving force for three axes, wherein the driving force can adopt a motor and the like; the base 1 is fixed on top of the motion platform 9.

The movable terminal 3 and the fixed terminal 4 are contactors, the movable terminal and the fixed terminal are in contact induction, namely, are used for conducting signals, and are used for separating, namely, disconnecting signals, and the signals are transmitted to a background through a signal wire 10 and are connected with an electric control system. The movable terminal 3 and the fixed terminal 4 are connected with an electric control system, and the electric signal is in a normally closed state; during the starting drive system, can be that the measured object 11 moves and come butt detecting head 2, also can be that motion platform 9 drives detecting head 2 and removes to measured object 11 below, and when measured object 11 butt to detecting head 2, detecting head 2 drives movable terminal 3 downstream, and movable terminal 3 breaks away from the contact with fixed terminal 4, and the signal disconnection, backstage receive the signal change, and electrical system stops to measure the calibration.

According to the scheme, accurate measurement and calibration are realized by matching the electric control system and the background, the background processes received signals and then transmits the processed signals to the electric control system, so that the electric control system can continue or stop measurement and calibration, and the related electric control system and the related background receive and transmit signals are the prior art and are not described herein again.

In the measuring and calibrating process, the probe 2 starts to move downwards under a certain pressure of the measured object 11, and the movable terminal 3 needs to move downwards for a certain distance to cut off a signal, namely, the measuring result needs to be counted into the distance of the downward pressure so as to obtain an accurate actual measuring result. In practical applications, the calibration can be accurately measured by repeatedly calibrating the distance that the probe head 2 is depressed when the off signal is asserted.

Taking the measurement point where the moving platform 9 drives the probe 2 to approach the measured object 11 as an example:

and (3) height measurement calibration: the probe 2 is driven by the moving platform 9 to move to the position below the measured object 11, then the probe is lifted along the Z-axis direction until the probe 2 is abutted to the measuring point of the measured object 11, and whether the contact signal of the movable terminal 3 and the fixed terminal 4 is disconnected or not is judged by the background; if not, continuing to measure and calibrate; if the system is disconnected, the electronic control system controls to stop measuring and calibrating, the moving platform 9 drives the detecting head 2 to descend to a safe position along the Z-axis direction, and the background calculates the measuring height.

And (3) measuring and calibrating flatness: the principle is similar to the principle of height measurement and calibration, but generally three or more points on the plane of the measured object 11 need to be measured, and the height difference of the measuring points is calculated through a background, so that the measurement and calibration of the flatness are realized.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A high-precision measurement and calibration device is characterized by comprising a base, a detection head, a movable terminal and a fixed terminal, wherein the detection head is connected to the base in a sliding mode; the fixed terminal and the movable terminal are oppositely arranged; the probe is used for being abutted against a measuring point of a measured object so as to drive the movable terminal to be in contact with the fixed terminal to conduct or separate a disconnection signal.

2. The high accuracy measurement calibration device of claim 1, further comprising an elastic member for restoring the probe after abutting against the object to be measured.

3. The high accuracy measurement calibration device of claim 2, wherein the elastic member is fixed by an elastic member fixing seat.

4. The apparatus according to claim 1, wherein a movable base is disposed between the probing head and the movable terminal, and the probing head is detachably disposed at one end of the movable base.

5. The high accuracy measurement calibration device of claim 4, wherein the movable mount is connected to the base via a sliding module.

6. The high-precision measurement calibration device according to claim 5, wherein a receiving groove is formed in the base, and the movable seat is arranged in the receiving groove through a sliding module; the holding tank is provided with a slotted hole penetrating to the surface of the base corresponding to the probe and the movable terminal respectively.

7. The apparatus according to claim 1, wherein the base further comprises a moving platform fixed to a bottom of the base, and the base drives the probe to move along the X-axis, the Y-axis and the Z-axis via the moving platform.

8. The high-precision measurement calibration device according to claim 1, wherein the movable terminal and the fixed terminal are respectively connected with an electric control system through signal lines.