CN210741434U

CN210741434U - Multi-section aperture measuring instrument

Info

Publication number: CN210741434U
Application number: CN201921547748.8U
Authority: CN
Inventors: 李英晖
Original assignee: Beijing Ldrise Technology Co ltd
Current assignee: Beijing Ldrise Technology Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-12
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a many cross-sections aperture measuring apparatu, the power distribution box comprises a box body, the fixedly connected with fixed plate between the both sides of box inner wall, the top fixedly connected with button of fixed plate, just be located the top fixedly connected with bottom plate of fixed plate between the both sides of box inner wall. The device's measuring device precision is high to measurement efficiency is high, and further easy operation: the measuring instrument is generally and directly placed on a grinding machine, is directly ground and directly detected, minimizes the juxtaposition of defective products, measures the diameters of 120 sections, and completely covers from an inlet hole to an outlet hole; and the diameters of 120 points are displayed in a graphic form, and the maximum value, the minimum value, the taper and the like of the measured precision hole are clear, very intuitive and low in cost.

Description

Multi-section aperture measuring instrument

Technical Field

The utility model relates to a technical field is measured to super high precision finishing's hole class part specifically is a many cross-sections aperture measuring apparatu.

Background

Measurement is the use of data to describe the observed phenomenon, i.e. to make a quantitative description of things, according to a certain law. The measurement is a quantization process of non-quantized objects, and in mechanical engineering, the measurement refers to an experimental recognition process of numerically comparing measured values with standard quantities with a metering unit so as to determine the ratio of the measured values to the standard quantities.

The existing multi-section aperture measuring instrument has a large number of defects, for example, the existing multi-section aperture measuring instrument cannot be adjusted and measured, and the measurement is performed manually, so that the measurement error is large, the accuracy of the measurement result is influenced, the measurement efficiency is low, only one workpiece needs several minutes for positioning, the whole measurement process needs more than 10 minutes, only the sampling inspection can be performed, each part cannot be measured, the error of the measurement data is increased, and the practicability of the multi-section aperture measuring instrument is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many cross-sections aperture measuring apparatu to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-section aperture measuring instrument comprises a box body, a fixing plate is fixedly connected between two sides of the inner wall of the box body, the top of the fixed plate is fixedly connected with a button, a bottom plate is fixedly connected between the two sides of the inner wall of the box body and positioned at the top of the fixed plate, one side of the top of the bottom plate is fixedly connected with a supporting rod, the other side of the top of the bottom plate is provided with a grading system, the top of the bottom plate is fixedly connected with a base, both sides of the top of the base are provided with optical axes, the outer surfaces of the two optical axes are connected with linear bearings in a sliding way, the bottom of the base is provided with a coupler, the bottom of the coupler is provided with a servo motor, the top end of an output shaft of the servo motor penetrates through the base and extends to the top of the base, one end of the output shaft of the servo motor, which extends to the top of the base, is fixedly connected with a ball screw, and the outer surface of the ball screw is in threaded connection with a connecting plate.

Preferably, the front surface of the connecting plate is provided with a displacement sensor, and the bottom of the displacement sensor is provided with a two-piece type elastic measuring head.

Preferably, the top end of the supporting rod is provided with an intelligent detection system.

Preferably, the back of the connecting plate is fixedly connected to the top of the linear bearing.

Preferably, the back of the ball screw is provided with an upper limit switch and a lower limit switch respectively.

Preferably, the two-piece type elastic measuring head comprises a two-piece type elastic measuring sleeve, and a measuring core is arranged on one side of the two-piece type elastic measuring sleeve.

Compared with the prior art, the utility model has the advantages that the operator places the workpiece to be measured on the positioning tool and presses the measuring button; the servo motor drives the screw rod to rotate; the two-piece elastic measuring head and the displacement sensor are fixed on the screw rod through the connecting plate,

the two-piece type elastic measuring head and the displacement sensor are driven to move downwards through the rotation of the screw rod, and after the elastic measuring head enters a measured workpiece, the change of the diameter of the measured workpiece is changed into the displacement change of the measuring core in the vertical direction, and the displacement change is transmitted to the intelligent measuring and controlling system through the displacement sensor; the lower limit switch is used for protecting the measuring mechanism from unlimited downward movement, and the upper limit switch is a measuring initial position of the measuring mechanism;

the measuring mechanism is driven by a servo motor to move up and down with two pieces of elastic measuring heads and displacement sensors, so that the up-and-down movement is stable and rapid; the measuring instrument is provided with a specially designed intelligent measuring and controlling instrument, signal acquisition and processing of the displacement sensor, movement of the motor and the like are all executed by the measuring and controlling instrument, and meanwhile, the measuring and controlling instrument can display a final measuring result in a graphic mode, so that the measuring and controlling instrument is simple and visual; the transmission mechanism is a high-precision ball screw, a precision optical axis and a linear bearing; if necessary, a grading system can be configured to group the parts to be measured according to the measurement results.

The measuring device has high precision, the repeated measuring precision can reach 0.2-0.3 mu m, the measuring efficiency is high and is less than 10 seconds per piece, if necessary, each part can be measured, and the further operation is simple: the measuring instrument is generally and directly placed on a grinding machine, is directly ground and directly detected, minimizes the juxtaposition of defective products, measures the diameters of 120 sections, and completely covers from an inlet hole to an outlet hole; and the diameters of 120 points are displayed in a graph form, the maximum value, the minimum value, the taper and the like of the measured precise hole are clear at a glance, the method is very intuitive and low in cost, and each production enterprise can be provided with a plurality of devices.

Drawings

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

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic diagram of the internal structure of the two-piece elastic measuring sleeve of the present invention.

In the figure: 1. a box body; 2. a fixing plate; 3. a button; 4. a base plate; 5. a support bar; 6. a grading system; 7. a base; 8. an optical axis; 9. a linear bearing; 10. a coupling; 11. a servo motor; 12. a ball screw; 13. a connecting plate; 14. a displacement sensor; 15. a two-piece elastic probe; 16. an intelligent detection system; 17. an upper limit switch; 18. a lower limit switch; 1501. two-piece elastic measuring sleeve; 1502. and (6) measuring the core.

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. 1-3, the present invention provides an embodiment:

a multi-section aperture measuring instrument comprises a box body 1, wherein a fixed plate 2 is fixedly connected between two sides of the inner wall of the box body 1, a button 3 is fixedly connected to the top of the fixed plate 2, a bottom plate 4 is fixedly connected between two sides of the inner wall of the box body 1 and positioned at the top of the fixed plate 2, a support rod 5 is fixedly connected to one side of the top of the bottom plate 4, a grading system 6 is arranged at the other side of the top of the bottom plate 4, a base 7 is fixedly connected to the top of the bottom plate 4, optical axes 8 are arranged on two sides of the top of the base 7, linear bearings 9 are slidably connected to the outer surfaces of the two optical axes 8, a coupler 10 is arranged at the bottom of the base 7, a servo motor 11 is arranged at the bottom of the coupler 10, the servo motor 11 is connected with an external power supply and a control, one end of an output shaft of the servo motor 11 extending to the top of the base 7 is fixedly connected with a ball screw 12, and the outer surface of the ball screw 12 is in threaded connection with a connecting plate 13.

In this embodiment, a displacement sensor 14 is disposed on the front surface of the connecting plate 13, a two-piece elastic measuring head 15 is disposed at the bottom of the displacement sensor 14, and the two-piece elastic measuring head 15 is composed of two parts: two-piece elastic measuring sleeve and measuring core. The two-piece elastic measuring sleeve is in an open state in a natural state, and is compressed and tightened by a hole when entering the hole to be measured, and the size of the tightening amount reflects the size of the hole; the measuring core is inserted between the two-piece spring measuring sleeve, the top end of the measuring core is a conical surface of 45 degrees and is matched with the inner conical surface of the measuring sleeve, and the amount 1:1 of the measuring sleeve which is compressed and tightened by the measured hole is converted into the upward displacement of the measuring core; if a displacement sensor is arranged at the upper end of the measuring core, the change of the aperture can be read by the displacement sensor 1:1 through the two-piece elastic measuring head.

In this embodiment, the top end of the support rod 5 is provided with an intelligent detection system 16.

In this embodiment, the back surface of the connecting plate 13 is fixedly connected to the top of the linear bearing 9.

In this embodiment, an upper limit switch 17 and a lower limit switch 18 are respectively disposed on the back of the ball screw 12, the lower limit switch 18 is for protecting the measuring mechanism from unlimited downward movement, and the upper limit switch 17 is a measurement initial position of the measuring mechanism.

In this embodiment, the two-piece elastic measuring head 15 includes a two-piece elastic measuring sleeve 1501, and a measuring core 1502 is disposed on one side of the two-piece elastic measuring sleeve 1501.

When the device works, S1, an operator places a workpiece to be measured on a positioning tool and presses the measuring button 3; the servo motor 11 drives the ball screw 12 to rotate; the two-piece elastic measuring head 15 and the displacement sensor 14 are fixed on the ball screw 12 through the connecting plate 13,

s2, driving the two-piece elastic measuring head 15 and the displacement sensor 14 to move downwards through the rotation of the ball screw 12, changing the diameter change of the measured workpiece into the displacement change of the measuring core in the vertical direction after the two-piece elastic measuring head 15 enters the measured workpiece, and transmitting the displacement change to the intelligent measuring and controlling system 16 through the displacement sensor 14; the lower limit switch is used for protecting the measuring mechanism from unlimited downward movement, and the upper limit switch is a measuring initial position of the measuring mechanism;

s3, the measuring mechanism is driven by a servo motor 11 to drive a two-piece elastic measuring head 15 and a displacement sensor 14 to move up and down, so that the up and down movement is stable and quick; the measuring instrument is provided with a specially designed intelligent measuring and controlling instrument, signal acquisition and processing of the displacement sensor 14, motor movement and the like are all executed by the measuring and controlling instrument, and meanwhile, the measuring and controlling instrument can display a final measuring result in a graphic mode, so that the measuring and controlling instrument is simple and visual; the transmission mechanism comprises a high-precision ball screw 12, a precision optical axis and a linear bearing; if necessary, a grading system can be configured to group the parts to be measured according to the measurement results.

S4, the measuring device has high precision, repeated measurement precision can reach 0.2-0.3 μm, the measurement efficiency is high and is less than 10 seconds per piece, if necessary, each part can be measured, and the further operation is simple: the measuring instrument is generally and directly placed on a grinding machine, is directly ground and directly detected, minimizes the juxtaposition of defective products, measures the diameters of 120 sections, and completely covers from an inlet hole to an outlet hole; and the diameters of 120 points are displayed in a graph form, the maximum value, the minimum value, the taper and the like of the measured precise hole are clear at a glance, the method is very intuitive and low in cost, and each production enterprise can be provided with a plurality of devices.

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 invention.

Claims

1. The utility model provides a many sections aperture measuring apparatu, includes the box, its characterized in that: the utility model discloses a box, including box inner wall, bottom plate, servo motor output shaft, be provided with the base, fixedly connected with fixed plate between the both sides of box inner wall, the top fixedly connected with button of fixed plate, the top fixedly connected with bottom plate that just is located the fixed plate between the both sides of box inner wall, one side fixedly connected with bracing piece at bottom plate top, the opposite side at bottom plate top is provided with the grading system, the top fixedly connected with base of bottom plate, the both sides at base top all are provided with the optical axis, two the surface sliding connection of optical axis has linear bearing, the bottom of base is provided with the shaft coupling, the bottom of shaft coupling is provided with servo motor, the top of servo motor output shaft runs through the base and extends to the top of base, the one end fixedly connected with ball screw.

2. The multi-section aperture gauge of claim 1, wherein: the front side of the connecting plate is provided with a displacement sensor, and the bottom of the displacement sensor is provided with a two-piece type elastic measuring head.

3. The multi-section aperture gauge of claim 1, wherein: the top end of the supporting rod is provided with an intelligent detection system.

4. The multi-section aperture gauge of claim 1, wherein: the back of the connecting plate is fixedly connected to the top of the linear bearing.

5. The multi-section aperture gauge of claim 1, wherein: the back of the ball screw is provided with an upper limit switch and a lower limit switch respectively.

6. The multi-section aperture gauge of claim 2, wherein: the two-piece type elastic measuring head comprises a two-piece type elastic measuring sleeve, and a measuring core is arranged on one side of the two-piece type elastic measuring sleeve.