CN201463862U

CN201463862U - Intelligent micrometer

Info

Publication number: CN201463862U
Application number: CN2009201061079U
Authority: CN
Inventors: 陈斯末
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-11
Filing date: 2009-03-11
Publication date: 2010-05-12
Anticipated expiration: 2019-03-11

Abstract

The utility model discloses an intelligent micrometer which comprises a frame, a power supply, a control driving system and a measurement system, wherein the power supply, the control driving system and the measurement system are arranged inside the frame in a mutual isolation mode. The control driving system comprises a control circuit board, a motor driver and a control button; the measurement system comprises a loading platform and a moving length measuring device, wherein the loading platform is fixed on the base of the frame; and the control circuit board controls a motor through the motor driver to drive the moving length measuring device to measure objects on the loading platform. In the utility model, an optical grating encoder and a spiral encoder are adopted to replace a spiral micrometer caliper, errors caused by manual measurement can be avoided, and the measurement precision and the measurement efficiency can be improved.

Description

The intelligence tenthousandth micrometer

Technical field

The utility model relates to automation field, is meant a kind of intelligent tenthousandth micrometer that is widely used in accurate manufacturing and Precision Machining field especially.

Background technology

As everyone knows, micrometer caliper is divided into two kinds: mechanical type micrometer caliper and digital micrometer caliper.These instrument application are extensive, but mechanical type micrometer caliper reading is not directly perceived, and check and correction is slow, and it is not too convenient to use; Therefore digital micrometer caliper has reading advantage intuitively owing to itself have sensor, Signal Processing Element and display screen, still, because the precision of the two is respectively one of percentage and does/one millimeter, all is difficult to adapt to accurate more measurement demand.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of intelligent milscale is provided, and its measuring accuracy is higher, and the error that can avoid manual measurement to cause, improves measuring accuracy and efficient.

Technical solution of the present utility model is: a kind of intelligent tenthousandth micrometer, this intelligence tenthousandth micrometer comprises framework and inner power supply, control-driven system, the measuring system that is provided with of isolating mutually thereof, described control-driven system comprises control circuit board, motor driver and control knob, described measuring system comprises article carrying platform and mobile measuring motion, described article carrying platform is fixed on the base of framework, and described control circuit board moves measuring motion by motor driver control driven by motor the object on the article carrying platform is measured.

Aforesaid intelligent tenthousandth micrometer, wherein, described mobile measuring motion comprises this motor, mobile platform, main scale and auxilliary scale, wherein, the output leading screw of described motor is connected to mobile platform, can drive mobile platform under the control of motor driver and move up and down, described main scale, auxilliary scale detect the moving direction and the displacement of this mobile platform jointly.

Aforesaid intelligent tenthousandth micrometer, wherein, described auxilliary scale is the spiral scrambler, this spiral scrambler is installed in motor top, and rotates with motor synchronous, exports the sense of rotation and the angle step signal of this screw mandrel.

Aforesaid intelligent tenthousandth micrometer, wherein, described main scale is a grating encoder, comprise grating chi and read head, described grating chi moves up and down with mobile platform, the stationkeeping of the corresponding described grating chi of described read head is surveyed the shift position of grating chi, and is exported its moving direction and displacement increment signal in the framework inboard.

Aforesaid intelligent tenthousandth micrometer, wherein, described mobile measuring motion also comprises identity device, described identity device comprises that heavy bar and light reflection are to pipe, described heavy bar can be provided with up or down, measured zone on the heavy bar is divided into reflective areas and non-reflective areas, described light reflection is installed on the mobile platform pipe, comprise luminotron and photosensitive tube, the light signal that luminotron is launched runs into reflective areas and is reflected, can be received and output signal by photosensitive tube, detect the reflective areas on the heavy bar and the separatrix of non-reflective areas with this.

Aforesaid intelligent tenthousandth micrometer, wherein, described intelligent tenthousandth micrometer also comprises the LCD that is connected with control circuit board.

Aforesaid intelligent tenthousandth micrometer, wherein, the CPU of described control circuit board selects the dsPIC single-chip microcomputer for use, and this single-chip microcomputer sends simulating signal by the D/A chip, sends into motor driver, and rotation of control motor and the optical sensor that drives on the mobile platform are measured automatically; The two-phase pulse signal that rotary encoder on the motor and grating reading head feed back is sent into counting chip, counting chip increases and decreases counting automatically according to the rotating or the moving up and down of mobile platform of motor, the count results of the machine-readable counting chip of monolithic, by liquid crystal display displays through computing and eliminate the result of error.

Aforesaid intelligent tenthousandth micrometer, wherein, described motor driver is a MAXON linear electric motor device, it is connected between single-chip microcomputer and motor, by the weak electric signal control forceful electric power signal of single-chip microcomputer.

Aforesaid intelligent tenthousandth micrometer, wherein, the frame base of described intelligent tenthousandth micrometer is equiped with the balance bubble.

Aforesaid intelligent tenthousandth micrometer, wherein, this intelligence tenthousandth micrometer also is provided with the machine error table of comparisons.

Intelligent tenthousandth micrometer of the present utility model compared with prior art has following characteristics and advantage:

1. high-resolution sensor: use advanced grating chi and grating encoder, cooperate the pulse subdivide technology again, realize that underlying parameter is accurate.

2. robotization: finish automatically repeatedly and to measure and Error processing, and measuring process is simple, left-hand seat and the error that causes can improve efficiency of measurement and reduce manual measurement the time realize the scientific and intelligent of measuring process and data processing method easily.

3. the machine error table of comparisons: set up this table, can eliminate the machine error that leading screw processing causes, improve precision.

4. balance bubble: install a balance bubble additional at base, can check whether base is in equilibrium state, regulates then, reduce unnecessary error when machine is measured.

5. weight: use the indirect method of measurement gently to be pressed on the object having the marginal weight of black and white, it is a bit motionless that object is fixed on, the error that object measurement point difference causes when having avoided the staff repeated measurement.

6. framework: use the very strong Q235 structural steel of rigidity, the error that malformation produces when preventing to measure.

7. can adopt C language compilation process of measurement, set up database, form a cover control corresponding software.It has big, accurate and quick three advantages of swap data amount, provides guarantee for improving measuring accuracy.

Description of drawings

Fig. 1 is the one-piece construction synoptic diagram of intelligent tenthousandth micrometer one specific embodiment of the present utility model.

Fig. 2 is the one-piece construction schematic top plan view of intelligent tenthousandth micrometer one specific embodiment of the present utility model.

Fig. 2 A is depicted as the utility model and adopts the schematic diagram of main and auxiliary scale when measuring.

Fig. 3 A, Fig. 3 B are the synoptic diagram that weight is arranged in initial position and measures in the specific embodiment of the present utility model.

Fig. 4 A, Fig. 4 B are the light reflection adopted in the specific embodiment of the present utility model structure and the principle schematic to pipe.

Fig. 5 is the electric control principle synoptic diagram of a specific embodiment of the present utility model.

Fig. 6 is the information process synoptic diagram of a specific embodiment of the present utility model.

The drawing reference numeral explanation:

1. frame base 2. drivers 3. control circuit boards

4. framework outer wall 5.15. internal partition 6. motors

7. rotary encoder 8. drives electric wire 9. flanges

10. mobile platform 11.17. grating chi and read head 12. article carrying platforms

13. sleeve 14. balance bubbles 16. power supplys

18, weight 19, light reflection are to pipe

Embodiment

Following conjunction with figs. and specific embodiment are described in further detail embodiment of the present utility model.

As shown in the figure, the intelligent tenthousandth micrometer that the utility model proposes comprises framework and the inner power supply that is provided with of isolating mutually thereof, control-driven system, measuring system, it is the Switching Power Supply of 24-25v that power supply can adopt output voltage, control-driven system comprises control circuit board 3, motor driver 2 and relevant control knob (not shown), measuring system comprises article carrying platform 12 and mobile measuring motion, article carrying platform 12 is fixed on the base 1 of framework, and control circuit board 3 rotates and drives mobile measuring motion by motor driver 2 control motors to be measured the object on the article carrying platform 12.

Specifically see also Fig. 1, shown in Figure 2, be the intelligence of the present invention integral arrangement figure of instrument very much, wherein Fig. 1 is a front schematic view, and Fig. 2 is a schematic top plan view.The intelligence tenthousandth micrometer is mainly by framework and inner power supply 16 of isolating mutually thereof, control-driven system, measuring system constitutes, particularly, this framework comprises base, outer wall 4 and internal partition 5, its inside has three spaces that isolate mutually, dorsal part space mounting power supply 16 in this framework, frame left space mounting control circuit board 3, motor driver 2 and control knob, the frame right space is bigger, be used to the system of installing and measuring, measuring system comprises article carrying platform 12 and mobile measuring motion, mobile measuring motion comprises this motor 2, mobile platform 10, main scale, auxilliary scale, wherein, the output leading screw of motor 2 is connected to mobile platform 10.

The utility model can be selected MAXON motor and MAXON linear electric motor device for use, by the weak electric signal control forceful electric power signal of single-chip microcomputer; Can select for use Switzerland to produce the mobile platform that the grinding leading screw makes up: stroke is 50mm, helical pitch 1mm, and stroke accuracy can reach 3 μ m.This platform drives each sensor by motor-driven and moves up and down, and its advantage is the precision height, and helical pitch is little.

In the specific embodiment of the present utility model, main scale is to realize with grating encoder, comprise grating chi 11 and read head 17, grating chi 11 moves up and down with mobile platform 10, the stationkeeping of read head 17 corresponding grating chis 11 is in frame inner wall, survey the shift position of grating chi 11, and output moving direction and displacement increment signal.The utility model adopts the grating chi to do main scale, thus the error of having avoided mechanical transmission mechanism to introduce.And, can utilize segmentation (or claiming frequency multiplication) technology to significantly improve the resolution of grating chi.Desire realizes the segmentation of grating encoding count pulse, both can use pure hardware circuit to finish, and also can use the single-chip microcomputer soft or hard in conjunction with finishing, and repeats no more herein.

In addition, in the specific implementation of the present utility model, can adopt the spiral scrambler as auxilliary scale, this spiral scrambler can be installed in motor top, and in motor synchronous rotation, output screw mandrel sense of rotation and angle step signal.Wherein in the specific embodiment, directly adopt MAXON motor and linear driver, this motor is furnished with speed reduction unit and code-disc 7 (promptly as rotary encoder), and wherein the reduction gear ratio of speed reduction unit is 33: 1, and the line number of code-disc is 500 lines.This motor is widely used in precision control field, slow running better performances, steady.Use rotary encoder to make auxilliary scale, in each count pulse generation moment of main scale, to auxilliary scale counter O reset.In other words, only in per two main scale count pulses interval, use auxilliary scale counting.

Fig. 2 A is depicted as the mode that the utility model adopts main and auxiliary scale combination, especially the principle schematic of utilizing the mode of grating chi and the combination of spiral scrambler to measure, the distance explanation, if the displacement of main scale is n, the mobile rotation scale of auxilliary scale is m, and then the displacement of mobile platform is Q=n+m.As known in the figure, the utility model not only can effectively improve the system testing precision, also can avoid the various errors (especially accumulated error) that mechanical transmission mechanism is introduced.

Please again in conjunction with Fig. 3 A, Fig. 3 B and figure Fig. 4 A, shown in Fig. 4 B, in the specific embodiment of the present utility model, this mobile measuring motion also comprises identity device, identity device comprises that the reflection of weight 18 and light comprises the concora crush portion and the bar portion on it of bottom to managing 19. weights 18, measured zone in the bar portion is separated into reflective areas and non-reflective areas, the bar portion of weight 18 can be fixed in the bearing that can prevent to rotate, and utilize self the zero point Z (be return-to-zero) of self gravitation with concora crush portion compacting testee or horizontal stand. when dust influences measuring accuracy, can use air pump to remove. in the utility model, this weight can be provided with up or down, as with a sleeve 13 sheathed these movement weight rod portions, thereby limit the track that moves up and down of this weight 18, this sleeve can be fixed on frame roof, prevent that weight from swinging, make measurement more accurate. the light reflection is installed on the carriage of mobile platform front portion pipe, comprise luminotron 191 and photosensitive tube 192, the light signal that luminotron 191 is launched runs into reflective areas 181 and is reflected, and can be received and output logic " 1 " by photosensitive tube 192; Run into not reflective areas 182 as light signal, then photosensitive tube 192 does not receive light signal, can only output logic " 0 ". utilize these characteristics can judge reflective areas and non-reflective areas. thus, by the reflective areas of detection weight 18 bar portions and the separatrix point Q of non-reflective areas, calculate the distance D that it moves ', can obtain the height D (=D ') of testee thus.

In addition, the utility model can install a balance bubble 14 additional at base, can check whether base 1 is in equilibrium state, regulates then, reduces unnecessary error when machine is measured.

Intelligent tenthousandth micrometer of the present utility model also is provided with LCD, the CPU of control circuit board 3 selects the dsPIC single-chip microcomputer for use, this single-chip microcomputer sends simulating signal by the D/A chip, sends into motor driver 2, and 6 rotations of control motor and the optical sensor that drives on the mobile platform 10 are measured automatically; The two-phase pulse signal that rotary encoder on grating reading head 17 and the motor 6 feeds back is sent into counting chip, counting chip increases and decreases counting automatically according to the rotating or the moving up and down of mobile platform of motor 6, the count results of the machine-readable counting chip of monolithic, computing is also eliminated error, and the result is come out by liquid crystal display displays.Its concrete electric control principle sees also Fig. 5.Corresponding signal processing is: the code-disc signal is handled by special-purpose counting chip LS7266R1, and chip carries out the increase and decrease technology automatically according to the pulse number of A, B phase and the angle relationship of two-phase, and the data that draw are handled through data bus input single-chip microcomputer.For example: suppose that deceleration is enclosed → passed through in leading screw rising 1mm → reducer output shaft rotation 1 in the ideal case, it is 500 * 33 → process quadruple that motor rotation 33 circle → code-discs produce pulse number, and the generation pulse number is 500 * 33 * 4.The pulse number of leading screw rising 1mm code-disc generation is 66000 as calculated, and promptly perfect precision is 0.015 μ m.

Method of operating of the present utility model is as follows:

1, opening power.

2, zero clearing: shown in Fig. 3 A, before the placement testee, need earlier weight 18 is fallen the bottom on the article carrying platform 12, by zero clearing (yellow) button, liquid crystal display displays " in the zero clearing "; When display showed 0.00 μ m, zero clearing was finished.

3, measure: shown in Fig. 3 B, weight 18 is lifted and puts into testee, weight 18 falls, it is (not shown to press the measurement button, as can be blueness), display shows " in the measurement ", this moment electric motor starting, driving mobile platform moves up to pipe together with grating chi and light reflection, after the light reflection detects the separatrix of weight to pipe, the distance that code-disc value when reading through the separatrix and grating chi move, single-chip microcomputer carries out computing to measured value, and calling the errors table correction, the result is by liquid crystal display.Finish after " x.xx μ m " to measure when showing.

4, stop: if meet accident, by stopping (not shown, as can be redness) button, stop all actions immediately, avoid causing damage.

The utility model adopts grating encoder, spiral scrambler to replace the scale of micrometer caliper, Measuring Object, improve precision, and use single-chip microcomputer Based Intelligent Control, make equipment realize measuring automatically and Error processing, average (being experimental method) owing to there is the Based Intelligent Control of single-chip microcomputer can reach repeatedly to measure, draw the higher data of precision.Because the error of having avoided manual measurement to cause can improve measuring accuracy and efficient.Because cooperatively interacting of grating chi and code-disc arranged, in measuring process, can calibrate easily, and under the cooperation of the two, set up the machine error table of comparisons, reduce the machine error that in production and process, causes.For precision manufacturing and fields such as Precision Machining and research improving measuring accuracy further.

The utility model is a nanoscale intelligence horizontal metroscope, can be used for precision optical machinery processing, makes, and as necessary precision bearing parts, sophisticated sensor manufacturing etc. in the high-speed electric expreess locomotive, also can be used for fields such as scientific experiment.

Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.

Claims

1. intelligent tenthousandth micrometer, it is characterized in that, this intelligence tenthousandth micrometer comprises framework and inner power supply, control-driven system, the measuring system that is provided with of isolating mutually thereof, described control-driven system comprises control circuit board, motor driver and control knob, described measuring system comprises article carrying platform and mobile measuring motion, described article carrying platform is fixed on the base of framework, and described control circuit board moves measuring motion by motor driver control driven by motor the object on the article carrying platform is measured.

2. intelligent tenthousandth micrometer as claimed in claim 1, it is characterized in that, described mobile measuring motion comprises this motor, mobile platform, main scale and auxilliary scale, wherein, the output leading screw of described motor is connected to mobile platform, can drive mobile platform under the control of motor driver and move up and down, described main scale, auxilliary scale detect the moving direction and the displacement of this mobile platform jointly.

3. intelligent tenthousandth micrometer as claimed in claim 2 is characterized in that, described auxilliary scale is the spiral scrambler, and this spiral scrambler is installed in motor top, and rotates with motor synchronous, exports the sense of rotation and the angle step signal of this screw mandrel.

4. intelligent tenthousandth micrometer as claimed in claim 3, it is characterized in that, described main scale is a grating encoder, comprise grating chi and read head, described grating chi moves up and down with mobile platform, the stationkeeping of the corresponding described grating chi of described read head is surveyed the shift position of grating chi, and is exported its moving direction and displacement increment signal in the framework inboard.

5. intelligent tenthousandth micrometer as claimed in claim 4, it is characterized in that, described mobile measuring motion also comprises identity device, described identity device comprises that heavy bar and light reflection are to pipe, described heavy bar can be provided with up or down, measured zone on the heavy bar is divided into reflective areas and non-reflective areas, described light reflection is installed on the mobile platform pipe, comprise luminotron and photosensitive tube, the light signal that luminotron is launched runs into reflective areas and is reflected, can be received and output signal by photosensitive tube, detect the reflective areas on the heavy bar and the separatrix of non-reflective areas with this.

6. intelligent tenthousandth micrometer as claimed in claim 1 is characterized in that, described intelligent tenthousandth micrometer also comprises the LCD that is connected with control circuit board.

7. intelligent tenthousandth micrometer as claimed in claim 5, it is characterized in that the CPU of described control circuit board selects the dsPIC single-chip microcomputer for use, this single-chip microcomputer sends simulating signal by the D/A chip, send into motor driver, rotation of control motor and the optical sensor that drives on the mobile platform are measured automatically; The two-phase pulse signal that rotary encoder on the motor and grating reading head feed back is sent into counting chip, counting chip increases and decreases counting automatically according to the rotating or the moving up and down of mobile platform of motor, the count results of the machine-readable counting chip of monolithic, by liquid crystal display displays through computing and eliminate the result of error.

8. intelligent tenthousandth micrometer as claimed in claim 7 is characterized in that, described motor driver is a MAXON linear electric motor device, and it is connected between single-chip microcomputer and motor, by the weak electric signal control forceful electric power signal of single-chip microcomputer.

9. intelligent tenthousandth micrometer as claimed in claim 1 is characterized in that the frame base of described intelligent tenthousandth micrometer is equiped with the balance bubble.