CN212300281U - Device for automatically measuring straightness of working edge of knife edge-shaped ruler - Google Patents

Abstract

The utility model discloses an automatic measuring device for the straightness of a working edge of a knife edge-shaped ruler, which comprises a shell, wherein a rack, a grinding surface flat ruler and a switching power supply are arranged in the shell, a clamping centering device and a rotary driving device are arranged on the rack, and one end of the clamping centering device is connected with a light transmission gap data comparison device; the top of the rack is provided with a light measuring device through a moving device, the signal output end of the light measuring device is connected with the input end of the control system, and the controlled ends of the clamping centering device and the rotary driving device are respectively connected with the output end of the control system. The utility model discloses make edge of a knife shape ruler and standard edge of a knife shape ruler can realize respectively removing the detection to can feed back detected signal to control system, realize the calculation to the measured data through control system, contrast with standard data, and then differentiate out edge straightness accuracy situation of edge of a knife shape ruler work automatically, improved detection accuracy and detection efficiency greatly.

Description

Device for automatically measuring straightness of working edge of knife edge-shaped ruler

Technical Field

The utility model relates to an accurate measurement technical field, more specifically relate to a edge of a knife shape ruler work edge straightness accuracy automatic measuring device.

Background

The knife-edge-shaped ruler is a measuring instrument with a measuring surface in a knife-edge shape and used for measuring plane shape errors of workpieces, is widely applied to the field of flatness and straightness detection of flat plates, flat rulers, machine tool workbenches, guide rails and precision workpieces, has the advantages of simple structure, light weight, no rustiness, convenience in operation, high measuring efficiency and the like, is a measuring tool commonly used for machining, and mainly has the specifications of 75mm, 125mm, 175mm, 200mm, 225mm, 300mm, 400mm, 500mm and the like according to the length of a working edge of the measuring tool.

The verification basis of the knife edge-shaped ruler is JJG 63-2007 'knife edge-shaped ruler' verification regulation, and the straightness of the working edge of the knife edge-shaped ruler is detected by using a polished surface leveling ruler with effective length not less than the length of the working edge of the knife edge-shaped ruler by a light gap method. The edge-shaped straightedges of 175mm and below were measured by direct method and those of 175mm and above were measured by comparative method.

The main verification project is working edge straightness, the straightness of the working edge is measured by a light gap method, a light-transmitting gap is observed by human eyes, and the width of the corresponding light gap is judged according to visible light color, so that the straightness of the working edge of the knife edge-shaped ruler is subjected to qualitative analysis. When a knife edge-shaped ruler with the diameter of 175mm or less is measured, a light-transmitting gap is observed, if no visible light gap exists or visible blue light exists, the straightness of a working edge is not more than l mu m; otherwise, the straightness of the working edge is more than l mu m. When a straight edge with a notch shape of more than 175mm is measured, the maximum gap of the light-transmitting gap is used as a measurement result, and the value can be determined by comparing with a standard gap. For a knife edge with a working edge length of 300mm or more, the hand-held knife edge should be positioned 2/9 away from the two ends and support most of the weight of the knife edge when measuring.

According to the regulation requirement, the traditional method for calibrating the straightness of the working edge of the knife-edge-shaped ruler has the following defects:

1) the whole verification process uses a plurality of types of standard instruments and supporting equipment, the standard instruments and the supporting equipment need to be placed again in each verification, and the standard clearance building and disassembling time is long.

2) The direct measurement method is adopted when the edge-shaped ruler with the diameter of 175mm or less is verified, or the comparison method is adopted when the edge-shaped ruler with the diameter of 175mm or more is verified, the judgment is made completely by means of human eye observation and experience, the verification result needs human eye photosensitive comparison, the influence of human factors is large, the verification precision is low, misjudgment is easy to occur, and the requirements of modern industrial development cannot be completely met.

Human eyes cannot accurately compare the colors of two color lights only by visual information, and in addition, the vision of each observer is different, the observed colors are different, and a large measurement error is introduced.

3) When the calibration is carried out, the straight edge with the shape of the notch needs to be supported by hands, the calibration result is influenced by the difference of the hand-holding force of different operators, the calibration conclusion is inconsistent, the detection result is easily influenced by human factors, the manpower and the time are wasted, and the calibration efficiency is low.

4) During verification, the parallelism of the grinding surface flat ruler below the knife edge-shaped straight ruler and the knife edge-shaped straight ruler cannot be guaranteed, and deviation is easy to occur to influence the verification result.

5) Only the part of the working edge of the knife edge-shaped ruler can be detected, the working edge of the whole knife edge-shaped ruler cannot be quickly detected, if the working edge of the whole knife edge-shaped ruler is detected, the positions of a light source and a light box for receiving the light source need to be changed for many times, so that the detection efficiency is low, and the detection precision is not high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve provides a edge shape ruler work edge straightness accuracy automatic measuring device to there is the standard clearance to establish and the takedown time is longer in the verification method of solving traditional edge shape ruler work edge straightness accuracy, the human factor influence is great, examination inefficiency, the influence is easily received to the examination result, the problem that detection efficiency is low, in order to avoid relying on people's eye to observe and experience makes the judgement to edge shape ruler work edge straightness accuracy, in order to improve detection precision and detection efficiency, in order to realize the purpose of automatic examination.

In order to solve the technical problem, the utility model adopts the following technical proposal.

The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler comprises a shell, wherein a rack, a grinding surface leveling ruler used for supporting the knife-edge-shaped ruler and a switching power supply used for supplying power to the whole device are arranged in the shell; the top end of the rack is provided with a light measuring device which is used for realizing mobile measurement of the straightness of the working edge of the knife-edge-shaped ruler and measurement of the standard light transmission gap in the light transmission gap data comparison device under the driving of the mobile device, the signal output end of the light measuring device is connected with the input end of a control system for the integral operation of the control device, and the controlled ends of the clamping centering device and the rotary driving device are respectively connected with the output end of the control system.

According to the technical scheme, the control system comprises a motion controller for collecting and controlling data, and the motion controller is connected with an upper computer through an industrial personal computer in an interactive communication mode.

According to the technical scheme, the moving device comprises an electric cylinder fixedly arranged at the top end of the rack and a moving sliding block which is arranged on the moving end of the electric cylinder in a sliding fit mode and partially extends out of the electric cylinder.

The technical scheme is further optimized, the light measuring device comprises a laser and a spectrometer, the laser is arranged on the movable sliding block in a collinear mode through a micrometer feeding type XYZ manual displacement platform and located on two sides of the knife edge-shaped ruler, the laser is used for emitting laser to the light transmission gaps of the knife edge-shaped ruler, the spectrometer is used for receiving the laser light intensity transmitted from the light transmission gaps of the knife edge-shaped ruler, the laser and the spectrometer are located on the same horizontal straight line with the light transmission gaps of the knife edge-shaped ruler, the controlled end of the laser is connected to the output end of the control system, and the signal output end of the spectrometer is connected to.

The technical scheme is further optimized, and the laser is an adjustable blue ray laser.

According to the technical scheme, the micrometer feeding type XYZ manual displacement platform is further provided with a position signal collector used for collecting laser intensity data of the light measuring device corresponding to the position of the knife edge-shaped straight edge and the deflection angle of the knife edge-shaped straight edge, and the signal output end of the position signal collector is connected to the signal input end of the control system.

According to the technical scheme, the outer wall of the electric cylinder is provided with a position limiting device used for limiting the moving stroke of the light measuring device, and the signal output end of the position limiting device is connected to the signal input end of the control system.

According to the technical scheme, the clamping and centering device comprises two positioning seats vertically arranged at the bottom end of the rack, the grinding surface flat ruler is arranged between the two positioning seats, and the bottom end of the grinding surface flat ruler is limited and arranged on a leveling mechanism for adjusting the flatness of the grinding surface flat ruler through a grinding surface flat ruler limiting structure; the top ends of the opposite side walls of the two positioning seats are detachably provided with clamping mechanisms used for clamping and centering the knife-edge-shaped straight ruler left and right through a rotary driving device.

Further optimize technical scheme, the rotation driving device includes that the stiff end sets up on the right side positioning seat and the drive shaft end stretches out the driving motor of right side positioning seat, with driving motor's drive shaft fixed connection's first drive carousel and rotate the second drive carousel that sets up on the positioning seat of left side and with the coaxial setting of first drive carousel.

Further optimize technical scheme, fixture is including fixed two pneumatic clamping jaws that set up respectively on first drive carousel and second drive carousel lateral wall, can dismantle respectively between the clamping jaw end of two pneumatic clamping jaws that set up with the water flat line and be connected with the grip block that is used for controlling the centre gripping centering to the knife-edge shape ruler, has certain interval between the bottom face of grip block and the top face of grinding surface ruler.

According to the technical scheme, the light transmission gap data comparison device comprises a fixed platform, a standard gauge block gap flat crystal arranged on the fixed platform and a standard knife-edge-shaped ruler arranged above the standard gauge block gap flat crystal in a contact mode, wherein the standard knife-edge-shaped ruler is connected with a clamping and centering device used for clamping and centering the knife-edge-shaped ruler through a synchronous connecting and clamping structure; the micrometer feeding type angle manual displacement platform is used for manually adjusting the swing angle of the standard knife edge-shaped straight ruler, one end of the micrometer feeding type angle manual displacement platform is rotatably arranged on the left side positioning seat, and the other end of the micrometer feeding type angle manual displacement platform is fixedly connected with the fixing platform.

Due to the adoption of the technical scheme, the utility model has the following technical progress.

The utility model discloses in using the qualitative analysis of edge shape ruler work edge straightness accuracy with the measuring method of fiber optic spectrometer to printing opacity intensity, through centre gripping centering device and rotation driving device, centering centre gripping and rotation when realizing edge shape ruler and standard edge shape ruler, through setting up the mobile device on the top of frame, set up light measuring device's mode on the mobile device, make edge shape ruler and standard edge shape ruler realize the removal respectively and detect, and can feed back the detected signal to control system, realize the calculation to the detected data through control system, contrast with the contrast data of standard, and then differentiate edge shape ruler work edge straightness accuracy situation automatically, the influence of human factor has been avoided effectively, need not the manual work and support, detection precision and detection efficiency have been improved greatly.

The utility model discloses the printing opacity clearance data comparison device that sets up can carry out printing opacity clearance data comparison through this device, because of standard edge of a knife shape ruler can be under the drive of this device with centre gripping centering device and rotation driving device synchronous motion, so guaranteed standard edge of a knife shape ruler and the edge of a knife shape ruler of waiting to examine and determine effectively and remain the synchronization throughout, eliminated because of the error that the standard edge of a knife shape ruler of swing or the edge of a knife shape ruler of waiting to examine and determine does not target in place and arouse, carry out printing opacity clearance data comparison through this device and can avoid unnecessary examination error effectively, the accuracy nature of examination result has been improved widely.

The utility model utilizes the principle of measuring the light transmission intensity by the spectrometer to replace the human eye photosensitive comparison; the clamping centering device with automatic clamping replaces a human hand to control the swing angle of the knife edge-shaped ruler; the control system can collect, convert, analyze, record and store the standard and the detected data and give a final conclusion, so that the standard gap is built at one time, the standard device can be built, the data collection is free of human factors, the time for repeatedly building the standard gap is saved, and the verification cost is reduced. The utility model discloses can realize automatic verification process, improve work efficiency, overcome the influence of human factor to the testing result, improve the degree of accuracy of examination.

The utility model discloses the development is examined and determine the darkroom, is provided with the shell promptly to become the black with the inside coating of shell, eliminate data acquisition and be shaded, conveniently get and put, adjust each examination module.

The utility model discloses standard gauge block clearance flat crystal efficient standard establishment mode has realized that the standard clearance is once built, can gain the standard data for examination, has shortened examination operating time.

The utility model discloses adopt the comparison method to the examination of knife edge shape ruler work edge straightness accuracy, the comparison is carried out as reference value and examined knife edge ruler edge straightness accuracy data with standard clearance data promptly. Meanwhile, in order to ensure the accuracy and stability of the device, the device can be verified and calibrated by a higher-level standard device.

The utility model discloses micrometer feeds type XYZ manual displacement platform and is used for the adjustment to focusing on and whole technology structure, and receiving arrangement furthest has been guaranteed to receive the gap printing opacity to XYZ manual displacement platform's use.

The utility model discloses the control system who sets up has realized having guaranteed that the data acquisition process does not have the human factor interference to examining and determine the overall process implementation control, with the spectrum appearance communication, to experimental data automatic acquisition, conversion, analysis, record, storage, improved work efficiency, reduced the examination cost.

The utility model discloses displacement step motor's speed can be adjusted for the speed of moving the slider is adjustable. The development of the speed-adjustable mechanical slide rail effectively ensures that the relative distance between the cutting edge of the knife edge ruler and the laser and the spectrometer is not changed, and the purpose of improving the sampling precision is achieved by changing the moving speed of the movable slide block.

The utility model discloses centre gripping centering device has realized the compulsory centering of edge of a knife shape ruler and standard edge of a knife shape ruler, makes the standard remain on a straight line and reside in spectrum appearance and laser instrument middle part throughout with examining the clearance, has increased data acquisition's reliability.

The utility model discloses pass through the spacing setting of mill face flat rule limit structure with the bottom of mill face flat rule on levelling mechanism to carry out centre gripping location effectively to edge of a knife shape ruler through fixture, make and need not people's hand and hold at the straightness accuracy verification process who carries out edge of a knife shape ruler work edge, avoided the influence of human factor, improved verification efficiency widely, the shake phenomenon can not appear in verification process, can guarantee the depth of parallelism of mill face flat rule and edge of a knife shape ruler effectively, the precision of examining and determine is improved.

Drawings

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

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

fig. 3 is a schematic view of another perspective structure of the present invention;

fig. 4 is a schematic view of a connection structure between the mobile device and the light measuring device according to the present invention;

fig. 5 is a schematic view of another view angle connection structure between the mobile device and the light measuring device according to the present invention;

fig. 6 is a partially cut-away view of the mobile device of the present invention (the lead screw is not shown);

fig. 7 is a schematic structural view of the light measuring device of the present invention;

fig. 8 is a schematic view of another view structure of the light measuring device of the present invention;

FIG. 9 is a schematic view of the connection structure between the clamping and centering device and the rotation driving device according to the present invention;

FIG. 10 is a schematic view of another connection structure of the clamping and centering device and the rotation driving device according to the present invention;

figure 11 is a front view of the present invention shown in figure 9;

fig. 12 is a top view of the present invention in fig. 9;

fig. 13 is a schematic structural view of a clamping mechanism in the clamping and centering device of the present invention;

fig. 14 is a schematic structural view of a first driving turntable in the rotary driving device of the present invention;

fig. 15 is a schematic structural view of a second driving turntable in the rotary driving device of the present invention;

fig. 16 is a schematic structural view of the light transmission gap data comparison device according to the present invention;

fig. 17 is a front view of the light transmission gap data comparison device of the present invention;

fig. 18 is a schematic view of a partial structure of the light transmission gap data comparison device according to the present invention;

fig. 19 is a schematic structural view of a micrometer feeding type angle manual displacement platform in the light transmission gap data comparison device of the present invention;

fig. 20 is a schematic view of a part of the structure of a micrometer feeding type angle manual displacement platform in the light transmission gap data comparison device of the present invention;

figure 21 is a cutaway view of figure 20 according to the present invention;

fig. 22 is a schematic structural view of another view angle part of the micrometer feeding type angle manual displacement platform in the light transmission gap data comparison device of the present invention;

fig. 23 is a diagram of the control system of the present invention;

fig. 24 is a schematic external structural view of the present invention.

Wherein: 1. the frame 11, the top plate 12, the bottom plate 13, the side plates 131 and the motor are provided with through holes;

2. the moving device 21, the cylinder barrel 22, the displacement stepping motor 23, the moving slide block 24 and the moving connecting transverse plate;

3. a light measuring device 31, a micrometer feeding type XYZ manual displacement platform 311, a first fixed connecting plate 312, a first platform 313, a first L-shaped connecting plate 314, a first micrometer 315, a first limit column 316, a second platform 317, a third platform 318, a second L-shaped connecting plate 319, a second micrometer 320, a second limit column 321, a fourth platform 322, a second fixed connecting plate 323, a fifth platform 324, a sixth platform 325, a third L-shaped connecting plate 326, a third micrometer 327, a spectrometer positioning plate 328, a laser positioning plate 329, a third limit column 32, a spectrometer 33 and a laser;

4. the clamping and centering device 41, the clamping mechanism 411, the pneumatic clamping jaw 412 and the clamping plate; 42. a grinding surface leveling ruler; 44. a leveling mechanism 441, a leveling plate 442 and a leveling knob; 45. a leveling plate limiting structure 451, a leveling plate limiting block 452 and a U-shaped sliding groove; 46. a grinding surface flat ruler limit structure 461 and a grinding surface flat ruler limit block; 47. positioning seats;

5. a rotary driving device 51, a driving motor 52, a first driving turntable 521, a first driving shaft 522, a first turntable 53, a second driving turntable 531, a second driving shaft 532, a second turntable 54, a first connecting plate 55 and a second connecting plate; 6. a knife-edge-shaped ruler;

7. a position limiting device 71, a first travel switch 72, a second travel switch 73 and a touch plate;

8. a light transmission gap data comparison device, 81, a micrometer feeding type angle manual displacement platform, 811, a micrometer with scales, 812, a rotating screw, 813, a disk shell, 814, a rotatable cylinder, 815, a movable sliding block, 816, a telescopic rod, 817, a movable cavity, 818, a protrusion, 819, a sliding chute, 8110, a bearing, 8111, a fixed circular plate, 8112, a positioning plate, 8113, a rotating platform, 8114, a fixed platform, 8115 and a knife edge-shaped ruler fixing plate; 82. the synchronous connection clamping structure comprises a synchronous connection clamping structure 821, a first connection clamping plate 822, a second connection clamping plate 823 and a connection fixing block; 83. performing gap flat crystal on the standard gauge block; 84. a micrometer feeding type XYZ manual displacement platform b; 87. a standard knife-edge-shaped ruler; 88. a left side positioning seat; 9. a housing.

Detailed Description

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

An automatic measuring device for the straightness of a working edge of a knife-edge-shaped ruler is shown in a combined mode in figures 1 to 24 and comprises a shell 9, wherein a rack 1, a grinding surface flat ruler 42, a clamping and centering device 4, a rotation driving device 5, a light measuring device 3, a light transmission gap data comparing device 8, a switching power supply and a control system are arranged in the shell 9.

The inside of the shell is wholly sprayed with black, the darkroom eliminates the interference of other light waves, the data acquisition backlight is eliminated, and the calibration modules are convenient to take, place and adjust.

The measuring range of the utility model is (75-500) mm, and the adjusting angle is-15 degrees- +15 degrees.

The frame 1 comprises a top plate 11, a bottom plate 12 and side plates 13. The side plates 13 are provided in two for connecting the top plate 11 and the bottom plate 12.

The grinding surface flat rule 42 is used for supporting the knife edge-shaped ruler 6, the utility model provides a grinding surface flat rule 42 adopts 500mm grinding surface flat rule, and grinding surface flat rule 42 is as the etalon, and the working face plane degree is no longer than 0.5 mu m. And selecting a knife edge-shaped ruler 6 with 500mm precision meeting the requirement to ensure that the measurement range of the device reaches 500 mm.

The switching power supply is used for providing electric energy for the whole device and can supply power at 220V.

The control system comprises a motion controller for collecting and controlling data, and the motion controller is connected with an upper computer through an industrial personal computer in an interactive communication manner.

The top of frame 1 is provided with light measuring device 3 through mobile device 2, and light measuring device 3 is used for realizing moving under mobile device 2 drives and measures and measure the standard printing opacity clearance in printing opacity clearance data comparison device 8 to the knife edge shape ruler work edge straightness accuracy, and light measuring device 3's signal output part is connected in the input that is used for the control system of the whole function of controlling means.

The moving device 2 comprises an electric cylinder fixedly arranged at the top end of the frame 1 and a moving slide block 23 which is arranged on the moving end of the electric cylinder in a sliding fit mode and partially extends out of the electric cylinder.

The electric cylinder comprises a cylinder barrel 21, a lead screw, a displacement stepping motor 22, a lead screw and a gear train structure. The top of cylinder 21 is fixed the setting in roof 11 bottom of frame 1 through a plurality of stands, and mechanical slide rail has been seted up to the bottom of cylinder 21. The lead screw is rotatably arranged at both ends of the cylinder 21 through bearings. The movable sliding block 23 is assembled in the mechanical sliding rail, and part of the movable sliding block extends out of the mechanical sliding rail and is assembled with the screw rod.

The utility model discloses well electric jar is 800MM stroke large displacement electric jar, repeatability 0.005 MM.

The displacement stepping motor 22 is connected with the lead screw through a gear train structure, and the fixed end of the displacement stepping motor 22 is fixedly arranged on the side wall of the cylinder 21. The gear train structure includes driving gear and driven gear, and the driving gear is fixed connection with displacement step motor 22's output shaft end, driven gear and lead screw fixed connection, driving gear and driven gear intermeshing. The displacement stepping motor 22 can drive the driving gear, the driven gear and the lead screw to rotate, and further drive the movable sliding block 23 to slide in the mechanical sliding rail, so that the purpose of movement detection of the light measuring device 3 is achieved.

The speed of the displacement stepper motor 22 can be adjusted so that the speed of the moving slide 23 is adjustable. The development of the speed-adjustable mechanical slide rail effectively ensures that the relative distance between the cutting edge of the knife edge ruler and the laser and the spectrometer is not changed, and the purpose of improving the sampling precision is achieved by changing the moving speed of the movable slide block.

The utility model discloses well displacement step motor 22 is connected and is provided with the step motor driver, and the step motor driver adopts 32 DSP treater for digital step motor, can the automatic generation optimal control parameter, and the performance of furthest performance motor makes the motor operation reach "three super performances" that super steady, super low noise, super low heat generation. The stepper motor driver consists of a driver and a Rasai control card. The controlled end of the stepper motor driver is connected to the output end of the motion controller.

The light measuring device 3 comprises a laser 33 and a spectrometer 32 which are respectively arranged on the movable slide block 23 in a collinear manner through a micrometer feeding type XYZ manual displacement platform 31 and are positioned on two sides of the knife-edge-shaped straight scale 6.

The laser 33 is used for emitting laser to the light transmission gap of the knife edge-shaped ruler, the laser emitted by the laser 33 can be used as a light source, and the controlled end of the laser 33 is connected to the output end of the motion controller. The utility model provides a laser instrument 33 is adjustable blue light line laser instrument, and adjustable blue light line laser instrument is as the light source, confirms that wavelength is 495-. The utility model discloses select blue line laser to replace the incandescent lamp light source for use, effectively avoid the influence of the polychromatic light that forms behind the single slit diffraction to follow-up examination.

The blue line laser with adjustable frequency is selected as a light source. From the slit light transmission characteristics, it is found that the red laser light cannot transmit the slit having a width of less than 1.25 μm, and the blue laser light can pass through all the slits having a width of more than 0.8 μm. The laser has the characteristics of good directivity and single color, and compared with an incandescent lamp in the traditional knife-edge-shaped ruler verification scheme, the line laser with a single waveband can avoid the influence of various color lights formed after diffraction by a single slit on subsequent work.

The utility model discloses well laser 33 wavelength: 450nm, power: 100mW, working voltage: DC 2.8V-5.2V, working current: less than 200 mA.

The spectrometer 32 is used for receiving the light intensity of the laser transmitted through the light transmission gap of the knife edge-shaped ruler, the laser 33, the spectrometer 32 and the light transmission gap of the knife edge-shaped ruler are positioned on the same horizontal straight line, and the signal output end of the spectrometer 32 is connected to the input end of the motion controller. The spectrometer 32 of the present invention employs an FX2000 fiber optic spectrometer. And measuring the light transmission intensity by using a spectrometer, thereby qualitatively analyzing the straightness of the working edge of the knife edge-shaped ruler.

The utility model discloses middle spectrometer 32 adopts heavy-calibre fiber collimator, when increaseing transmission light intensity reception scope, has reduced mobile device's machining precision by a wide margin.

The utility model discloses 32 wave bands of spectrometer: 380 nm-960 nm, integration time: 1ms to 60 s. Straight-through optical fiber core diameter: 600, wave band: 200nm to 1100 nm. The wave band of the fiber collimator: 200 nm-2500 nm, light transmission caliber: 25.4mm, numerical aperture: 0.22.

the control system realizes the control of the whole verification process, ensures no human factor interference in the data acquisition process, communicates with the spectrometer, automatically acquires, converts, analyzes, records and stores experimental data, improves the working efficiency and reduces the verification cost.

The micrometer feeding type XYZ manual displacement platform 31 is fixedly connected to the bottom end of the movable slide block 23 through a movable connecting transverse plate 24. The micrometer feeding type XYZ manual displacement platform 31 is used for adjusting the light alignment and the whole process structure, and the use of the micrometer feeding type XYZ manual displacement platform 31 ensures that the receiving device receives light transmission of a gap to the maximum extent.

The micrometer feeding type XYZ manual displacement stage 31 includes a first fixed connection plate 311, an X-direction feeding structure, a Y-direction feeding structure, and a Z-direction feeding structure. The first fixed connecting plate 311 is an i-shaped fixed connecting plate, and the top end of the first fixed connecting plate 311 is fixed with the movable connecting transverse plate 24.

The X-direction feeding structure includes a first platform 312, a second platform 316, a first L-shaped connecting plate 313, a first micrometer 314, a first limiting post 315, a first limiting plate, and a first screw. The first platform 312 is fixed to the first fixed connection plate 311, and a slide rail is disposed at a bottom end of the first platform 312. The top end of the second platform 316 is provided with a slider, and the second platform 316 is slidably fitted with the first platform 312. The first L-shaped connection plate 313 is fixed to the first platform 312. The first micrometer 314 is rotatably connected to the first L-shaped connection plate 313 and is connected to the first screw. The first screw rod is fittingly connected with the second platform 316, and when the first screw rod rotates, the second platform 316 can be driven to slide. The first limiting plate is fixedly arranged on the first platform 312, a U-shaped groove is formed in the first limiting plate, a first limiting column 315 penetrating the U-shaped groove is fixedly arranged on the second platform 316, and the moving position of the second platform 316 can be limited by the first limiting column 315.

The Y-direction feeding structure includes a third platform 317, a fourth platform 321, a second L-shaped connecting plate 318, a second micrometer 319, a second limiting post 320, a second limiting plate, and a second screw. The third platform 317 is fixed to the second platform 316, and a slide rail is disposed at a bottom end of the third platform 317. The top end of the fourth platform 321 is provided with a slider, and the fourth platform 321 is slidably fitted with the third platform 317. The second L-shaped connecting plate 318 is fixed to the third platform 317. The second micrometer 319 is rotatably connected to the second L-shaped link plate 318 and to the second screw. The second screw is fittingly connected with the fourth platform 321, and when the second screw rotates, the fourth platform 321 can be driven to slide. The second limiting plate is fixedly arranged on the third platform 317, a U-shaped groove is formed in the second limiting plate, a second limiting column 320 penetrating through the U-shaped groove is fixedly arranged on the fourth platform 321, and the moving position of the fourth platform 321 can be limited by the second limiting column 320.

The Z-direction feeding structure includes a second fixed connecting plate 322, a fifth platform 323, a sixth platform 324, a third L-shaped connecting plate 325, a third micrometer 326, a third limiting column 329, a third limiting plate, and a third screw. The second fixing connecting plate 322 is a T-shaped structure, and the second fixing connecting plate 322 is fixed to the fourth platform 321. The fifth platform 323 is vertically arranged and fixed to the side of the second fixed connecting plate 322, and a slide rail is arranged on the side wall of the fifth platform 323. The sixth platform 324 is vertically arranged, a sliding block matched with the sliding rail is arranged on the sixth platform 324, and the sixth platform 324 and the fifth platform 323 are arranged in a sliding matching mode. The third L-shaped connecting plate 325 is fixed to the sixth platform 324. The third micrometer 326 is rotatably provided on the third L-shaped link plate 325. The third screw is connected to the third micrometer 326, and the third screw is fitted with the fifth platform 323, and when the third screw rotates, the sixth platform 324 can be driven to slide. The third limiting plate is fixedly arranged on the sixth platform 324, a U-shaped groove is formed in the third limiting plate, and a third limiting column 329 penetrating through the U-shaped groove is fixed on the sixth platform 324. The spectrometer positioning plate 327 is fixedly connected to the sixth platform on the left side, and the spectrometer 32 is fixedly disposed on the spectrometer positioning plate 327. The sixth platform located on the right side is fixedly connected with a laser positioning plate 328, and the laser 33 is fixedly arranged on the laser positioning plate 328.

The micrometer feeding type XYZ manual displacement platform 31 is also provided with a position signal collector, the position signal collector is used for collecting laser intensity data of the light measuring device 3 corresponding to the position of the knife edge-shaped ruler 6 and the deflection angle of the knife edge-shaped ruler 6, and a signal output end of the position signal collector is connected to a signal input end of the motion controller.

And a position limiting device 7 for limiting the moving stroke of the light measuring device 3 is arranged on the outer wall of the electric cylinder, and the signal output end of the position limiting device 7 is connected to the signal input end of the motion controller. The position restricting device 7 includes a first stroke switch 71 and a second stroke switch 72 that are provided on a side wall of the cylinder 21 at intervals. The moving slider 23 is provided with a touch pad 73 extending outward, and when the touch pad 73 touches the first travel switch 71 or the second travel switch 72, the first travel switch 71 or the second travel switch 72 will feed back a position signal of the light measurement device to the motion controller, so as to control the moving device 2 to stop moving.

The machine frame 1 is provided with a clamping and centering device 4 for clamping and centering the knife-edge-shaped ruler 6 and a rotary driving device 5 which is connected with the clamping and centering device 4 and used for driving the clamping and centering device 4 and the knife-edge-shaped ruler 6 to rotate, and controlled ends of the clamping and centering device 4 and the rotary driving device 5 are respectively connected with an output end of a control system.

The clamping and centering device 4 comprises a positioning seat 47, a grinding surface flat rule limiting structure 46, a leveling mechanism 44 and a clamping mechanism 41.

The positioning seats 47 are provided with two and vertically arranged on the bottom plate 12.

The bottom end of the grinding surface flat ruler 42 is limited and arranged on the leveling mechanism 44 through the grinding surface flat ruler limiting structure 46, and the leveling mechanism 44 is used for adjusting the flatness of the grinding surface flat ruler 42.

Leveling mechanism 44 includes the leveling board 441 that sets up on bottom plate 12 through at least three leveling knob 442, the utility model provides a leveling board 441 sets up on bottom plate 12 through three leveling knob 442 for leveling of leveling board 441 is more steady.

The grinding surface flat limit structure 46 includes a plurality of pairs of grinding surface flat limit blocks 461 connected to the top end surface of the leveling plate 441. The utility model discloses well be provided with two pairs of abrasive surface leveling ruler stoppers 461.

The rotation driving device 5 includes a driving motor 51, a first driving turntable 52, and a second driving turntable 53.

The fixed end of the driving motor 51 is arranged on the right side positioning seat, the driving shaft end extends out of the right side positioning seat, and the driving motor 51 is connected with the right side positioning seat through a bearing. The driving motor 51 can drive the knife-edge-shaped ruler 6 to incline 15 degrees left and right according to the verification rule. A motor through hole 131 is formed in the side plate 13 on the right side, and the driving motor 51 passes through the motor through hole 131.

The utility model discloses well driving motor 51 adopts 57 leisai step motor, can control rotation angle effectively.

The first driving turntable 52 is fixedly connected with a driving shaft end of the driving motor 51. The first driving turntable 52 includes a first driving shaft 521 fixedly connected to a driving shaft end of the driving motor 51 and a first turntable 522 integrally connected to the first driving shaft 521.

The second driving turntable 53 is rotatably disposed on the left positioning seat and is coaxially disposed with the first driving turntable 52. The second driving turntable 53 includes a second driving shaft 531 rotatably connected to the left positioning seat through a bearing, and a second turntable 532 integrally connected to the second driving shaft 531.

The clamping mechanism 41 is detachably arranged at the top ends of the opposite side walls of the positioning seat 47 through the rotation driving device 5 and is used for clamping and centering the knife-edge-shaped straight ruler 6 left and right.

The clamping mechanism 41 comprises two pneumatic clamping jaws 411, the two pneumatic clamping jaws 411 are respectively and fixedly arranged on the side walls of the first driving turntable 52 and the second driving turntable 53, and are arranged on the same horizontal line, and the working mode is centering clamping. The pneumatic gripper on the right side is connected to the first rotary plate 522 by a first connecting plate 54, and the pneumatic gripper on the left side is connected to the second rotary plate 532 by a second connecting plate 55.

The pneumatic clamping jaw 411 is a common pneumatic finger in the prior art, and includes an air cylinder and two parallel clamping jaws capable of being centered and clamped under the action of the air cylinder, and the parallel clamping jaws are clamping jaw ends. The pneumatic clamping jaw 411 is connected with an air source through an air pipe, an electromagnetic valve is arranged on the air pipe, air supply for the pneumatic clamping jaw 411 is controlled through controlling the electromagnetic valve, and then opening and closing of the clamping jaw end are achieved.

Clamping plates 412 are detachably connected between the clamping jaw ends of two pneumatic clamping jaws 411 arranged corresponding to the same horizontal line respectively and are used for clamping and centering the knife-edge-shaped straight edge 6 left and right.

A certain distance is provided between the bottom end surface of the holding plate 412 and the top end surface of the polished surface flat rule 42, i.e. a detection gap is left between the holding plate 412 and the polished surface flat rule 42, so that light can shine into the space from the detection gap.

The bottom plate 12 is further provided with a leveling plate limiting structure 45 for limiting the side wall of the leveling plate 441 and observing whether the leveling plate 441 is leveled.

The leveling plate limiting structure 45 comprises a leveling plate limiting block 451 which is arranged on the bottom plate 12 and is in contact with the side wall of the leveling plate 441, a U-shaped sliding groove 452 is formed in the leveling plate limiting block 451, a connecting bolt penetrates through the U-shaped sliding groove 452, and the connecting bolt is in threaded connection with the leveling plate 441 and moves up and down along the U-shaped sliding groove 452 in the leveling process. Whether the leveling plate 441 is leveled can be judged by observing whether the positions of the connecting bolts on the leveling plate limiting blocks 451 are on the same straight line.

One end of the clamping and centering device 4 is connected with a light transmission gap data comparison device 8, and as shown in fig. 16 to 22, the light transmission gap data comparison device 8 is used for synchronously acting with the knife-edge-shaped ruler 6 under the action of the clamping and centering device 4 and the rotation driving device 5 so as to realize standard light transmission gap data acquisition. The light transmission gap data comparison device 8 comprises a fixed platform 8114, a standard gauge block gap flat crystal 83, a standard knife-edge-shaped straight ruler 87 and a synchronous connection clamping structure 82.

The standard gauge block gap flat crystal 83 efficient standard establishing mode realizes one-time establishment of the standard gap, namely standard data for verification can be obtained, and the verification working time is shortened.

A standard gauge block gap plate 83 is disposed on the fixed platform 8114. The standard gauge block gap flat crystal 83 grinds the multi-size gauge blocks and the flat crystal simultaneously according to the requirements of optical gaps of 1.0 μm, 2.0 μm, 3.0 μm and 4.0 μm, and is used for respectively collecting standard optical gap data and archiving the data for later use.

The standard knife-edge-shaped ruler 87 is arranged above the standard gauge block gap flat crystal 83 in a contact mode and is in contact with the standard gauge block gap flat crystal 83, and when light rays are emitted from the gap between the standard knife-edge-shaped ruler 87 and the standard gauge block gap flat crystal 83, standard detection data can be obtained.

The standard knife-edge-shaped straightedge 87 is connected to the clamping and centering device 4 by the synchronizing connection clamping structure 82.

The utility model discloses can drive first drive carousel 52 through driving motor 51 and rotate, and then drive pneumatic clamping jaw 411 among the centre gripping centering device 4 and the edge of a knife shape ruler 6 in the centre gripping centering device 4 and rotate.

Synchronous connection clamping structure 82 includes and is connected with centre gripping centering device 4 respectively and carries out the first connecting splint 821 and the second connecting splint 822 of centre gripping in order to realize carrying out standard edge of a knife shape ruler 87 with centre gripping centering device 4 synchronous operation, specifically, the utility model provides a first connecting splint 821 and second connecting splint 822 respectively with pneumatic clamping jaw 411's clamping jaw end fixed connection, can drive first connecting splint 821 and second connecting splint 822 when pneumatic clamping jaw 411 moves and carry out the centre gripping action to with two clamping plate 412 synchronous action.

First connecting clamp plate 821 and second connecting clamp plate 822 slide and set up on being connected fixed block 823 with standard edge of a knife shape ruler 87 fixed connection, connect fixed block 823 and first connecting clamp plate 821 and second connecting clamp plate 822 contact site and set up flutedly respectively, first connecting clamp plate 821 and second connecting clamp plate 822 can slide in the recess.

The standard knife-edge-shaped straight scale 87 is connected with a micrometer feeding type angle manual displacement platform 81 through a knife-edge-shaped straight scale fixing plate 8115, and the micrometer feeding type angle manual displacement platform 81 is used for manually adjusting the swing angle of the standard knife-edge-shaped straight scale 87. One end of the micrometer feeding type angle manual displacement platform 81 is rotatably arranged on the left side positioning seat 88, and the other end of the micrometer feeding type angle manual displacement platform 81 is fixedly connected with the fixing platform 8114.

The micrometer feeding type angle manual displacement platform comprises a disc shell 813, a rotatable cylinder 814, a rotating shaft, a rotating platform 8113, a knife edge-shaped straight ruler fixing plate 8115 and a micrometer angle adjusting structure.

The fixed platform 8114 is used for positioning the standard gauge block gap flat crystal 83, and the standard knife-edge-shaped straight edge 87 is arranged above the standard gauge block gap flat crystal 83 in a contact mode.

The disc housing 813 is hollow, the front end of the disc housing 813 is provided with a fixed circular plate 8111 through screw connection, and the front end and the rear end of the disc housing 813 are respectively provided with a through hole.

The rotatable cylinder 814 is provided inside the disc housing 813 and can be rotated by the driving action of the micrometer angle adjusting mechanism.

The rotating shaft is fixedly connected with the axle center of the rotatable cylinder 814, and the rotating shaft is rotatably arranged on the disc housing 813 through a bearing 8110 and penetrates through the disc housing 813.

The rotating platform is fixedly connected to one end of the rotating shaft extending out of the disc housing 813. The rotary platform 8113 is connected with the standard knife-edge-shaped ruler 87 through a knife-edge-shaped ruler fixing plate 8115, so that the rotary platform 8113 can drive the standard knife-edge-shaped ruler 87 to swing when rotating.

The micrometer angle adjusting structure is arranged on the disc housing 813 and used for driving the rotatable cylinder 814, the rotating shaft and the rotating platform to rotate simultaneously, and the angle swing of the rotating platform can be realized by adjusting the micrometer angle adjusting structure.

The bottom of the disc housing 813 is provided with a moving cavity 817, and the side walls of the disc housing 813 on the left and right sides of the moving cavity 817 are respectively and fixedly provided with a positioning plate 8112.

The micrometer angle adjusting structure comprises a micrometer with scales 811, a rotating screw 812, a moving slide 815 and a telescopic rod 816.

The micrometer 811 with scale is rotatably disposed on a positioning plate 8112. The rotating screw 812 is connected with the micrometer 811 with scale and is rotatably connected with the other positioning plate 8112, and the outer wall of the rotating screw is provided with an external thread. A moving slider 815 is fittingly provided on the rotating screw 812, and is slidably fitted with a moving chamber 817 for enabling left and right movement when the rotating screw 812 rotates.

The front and rear inner walls of the moving cavity 817 are provided with protrusions 818, the front and rear outer walls of the moving slide block 815 are provided with chutes 819 assembled with the protrusions 818, and the moving slide block 815 is assembled with the protrusions 818 of the moving cavity 817 through the chutes 819, so that the moving slide block 815 is clamped.

A telescopic rod 816 hinged with the rotatable cylinder 814 is fixed at the top end of the movable sliding block 815, and the telescopic rod 816 is used for driving the rotatable cylinder 814 to rotate.

In order to realize that the light transmission gap data comparison device 8 can move in the X direction, the Y direction and the Z direction, so as to adjust the positions of the standard knife edge-shaped ruler 87 and the standard gauge block gap flat crystal 83 in the light transmission gap data comparison device 8 when the positions of the knife edge-shaped ruler 6 in the X direction, the Y direction and the Z direction are changed, ensure that the gap between the standard knife edge-shaped ruler 87 and the standard gauge block gap flat crystal 83 and the gap between the knife edge-shaped ruler 6 and the grinding surface flat ruler 42 are on the same straight line, further ensure the detection accuracy, simultaneously ensure that the light measurement device 3 can detect the knife edge-shaped ruler 6 after detecting the standard gauge block gap flat crystal 83, and does not need to adjust the height position of the light measurement device 3, the utility model discloses a light transmission gap data comparison device 8 is arranged on a micrometer feeding type XYZ manual displacement platform b84, specifically, the left positioning seat 88 is fixedly provided on the micrometer feeding type XYZ manual displacement stage b 84. The specific structure on the micrometer feeding type XYZ manual displacement stage b84 is the same as that of the micrometer feeding type XYZ manual displacement stage 31, and will not be described herein again.

The utility model discloses well switching power supply, motion control ware, current collector, switching value controller and step motor driver all set up in the control box.

The utility model discloses data acquisition and control then realize through motion controller, and the data acquisition module in the motion controller gathers each way signal. The collected signals include limit signals and position signal information. The motion controller receives a control command from the upper computer through communication with the industrial personal computer and uploads the acquired data to the upper computer.

The utility model discloses well motion control ware is the control center of whole device, upwards uploads various motion control's feedback signal to the host computer, and various mechanical motion to controlling means realizes the motion requirement of 15 of beat that the straight line displacement of laser instrument and spectrum appearance and edge of a knife shape ruler verification process required.

The utility model discloses the host computer includes industry machine case, power, mainboard, display card, hard disk drive, optical disk drive, IO interface module, display, keyboard, mouse and printer etc.. Each functional module is connected through a bus to complete respective functions and communication functions.

The design of the straightness calibrating device for the working edge of the knife-edge-shaped ruler needs to perform data processing and calculation on light intensity data collected by a spectrometer, a position signal collector, a standard value of a standard gap and the like, and needs to store data in real time, so that a large enough data storage space needs to be provided for storing the data, and a certain amount of data calculation and processing needs to be performed, and therefore, a desktop computer is selected to be used as an upper computer of the system. Through an interface displayed by a display on the upper computer, the specifications of the edge rulers corresponding to different sizes are selected, automatic verification on the display interface is pressed, automatic operation can be realized, data are automatically collected, data are automatically processed, a report is generated, and a measurement result is obtained.

The utility model discloses carry out the process of measuring as follows at tool setting mouth of a knife shape ruler.

And S1, leveling the grinding surface flat rule 42.

The levelness of the leveling plate 441 is adjusted by turning the leveling knob 442. In the adjusting process, the leveling plate 441 drives the connecting bolts to move up and down along the U-shaped sliding grooves 452 of the leveling plate limiting blocks 451, and whether the leveling plate 441 is leveled can be judged by observing whether the positions of all the connecting bolts are on the same straight line.

And S2, manually putting the ruler into the knife edge type ruler. When all the attachment bolt positions are observed to be in alignment, the knife-edge ruler 6 is placed on the abrasive surface flat 42 between the two holding plates 412.

S3, the positions of the standard knife-edge-shaped ruler 87 and the standard gauge block gap flat crystal 83 in the X direction, the Y direction and the Z direction are adjusted through the micrometer feeding type XYZ manual displacement platform b84, the gap between the standard knife-edge-shaped ruler 87 and the standard gauge block gap flat crystal 83 is ensured to be on the same straight line with the gap between the knife-edge-shaped ruler 6 and the grinding surface flat crystal 42, the standard gap and the detected gap are always kept on the same straight line and are positioned in the middle of a spectrometer and a laser, and the reliability of data acquisition is improved.

And S4, clamping and positioning the knife-edge-shaped ruler, and clamping and positioning the standard knife-edge-shaped ruler 87 at the same time.

The distance between the two clamping plates 412 is adjusted through the pneumatic clamping jaws 411, and the knife-edge-shaped straight edge 6 is firmly clamped and centered. When the pneumatic clamping jaw 411 moves, the first connecting clamp 821 and the second connecting clamp 822 are driven to move in opposite directions, so that the standard knife-edge-shaped ruler 87 is clamped.

S5, the positions of the laser 33 and the spectrometer 32 are adjusted through the micrometer feeding type XYZ manual displacement platform 31, the position of the laser 33 emitting laser and the light transmission gap of the knife-edge-shaped ruler (namely the gap between the knife-edge-shaped ruler 6 and the grinding surface flat ruler 42) are ensured to be positioned on the same straight line, and the position of the spectrometer 32 receiving the laser and the position of the laser 33 emitting the laser are ensured to be positioned on the same straight line.

S51, adjusting the position of the laser 33 and the spectrometer 32 in the Z direction.

The Z-direction feeding structure of the micrometer feeding type XYZ manual displacement platform 31 is adjusted according to the clamping and positioning position of the knife-edge-shaped ruler 6, the third micrometer 326 is rotated to drive the third screw rod to rotate, the third screw rod is assembled with the fifth platform 323, the sixth platform 324 is assembled with the fifth platform 323 in a sliding mode because the vertical position of the fifth platform 323 is an immovable fixed position, and the vertical position of the sixth platform 324 is in a slidable mode, so that the sixth platform 324 can be driven to slide when the third screw rod rotates, the laser 33 arranged on the sixth platform 324 can be driven to move in the Z direction, and the adjustment is stopped when the laser 33 is adjusted to be on the same straight line with the knife-edge-shaped ruler light-transmitting gap. The position adjustment of the spectrometer 32 in the Z direction is based on the same principle.

S52, adjusting the position of the laser 33 and the spectrometer 32 in the X-direction and the Y-direction.

When the position of the laser 33 in the X direction is adjusted, the first micrometer 314 is rotated to drive the first screw to rotate, so as to drive the second platform 316 to slide, thereby driving the Y-direction feeding structure, the Z-direction feeding structure and the laser 33 below the second platform 316 to move along the X direction. The principle of the position adjustment of the spectrometer 32 in the X direction is the same.

When the position of the laser 33 in the Y direction is adjusted, the second micrometer 319 is rotated to drive the second screw rod to rotate, and further the fourth platform 321 is driven to slide, so as to drive the Z-direction feeding structure below the fourth platform 321 and the laser 33 to move along the Y direction. The principle of the position adjustment of the spectrometer 32 in the Y direction is the same.

When the specification and the model of the knife-edge-shaped ruler 6 are changed, the length and the thickness of the knife-edge-shaped ruler 6 are changed, the positions of the laser 33 and the spectrometer 32 in the X direction and the Y direction need to be adjusted, the specification of the required grinding surface flat ruler 42 is also changed, and therefore the positions of the laser 33 and the spectrometer 32 in the Z direction need to be adjusted.

S6, the light measuring device 3 is driven by the moving device 2 to respectively carry out moving measurement on the standard knife-edge-shaped ruler 87 and the knife-edge-shaped ruler.

The displacement stepping motor 22 in the electric cylinder is started, the lead screw is driven to rotate through the gear train structure, and the movable sliding block 23 is further driven to slide along the Y axis in the cylinder 21, so that the movable sliding block 23 drives the light measuring device 3 to move and measure along the standard knife-edge-shaped ruler, the laser 33 emits blue laser to the gap between the standard knife-edge-shaped ruler and the standard gauge block gap flat crystal 83, the spectrometer 32 receives the blue laser passing through the gap between the standard knife-edge-shaped ruler and the standard gauge block gap flat crystal 83, the spectrometer 32 feeds collected laser intensity data back to the motion controller, the motion controller feeds the collected laser intensity data back to the upper computer, and the upper computer calculates the straightness of the standard knife-edge-shaped ruler according to rule requirements and stores the calculated laser intensity data as comparison standard data.

The moving device 2 continues to drive the light measuring device 3 to move, when the light measuring device 3 moves to the position of the knife-edge-shaped ruler, the laser 33 emits blue laser to the gap between the knife-edge-shaped ruler 6 and the grinding surface flat ruler 42, the spectrometer 32 receives the blue laser passing through the gap between the knife-edge-shaped ruler 6 and the grinding surface flat ruler 42, the spectrometer 32 feeds back collected laser intensity data to the motion controller, the motion controller feeds back the collected laser intensity data to the upper computer, the upper computer calculates the straightness of the knife-edge-shaped ruler according to the rule requirements, compares the calculated straightness with standard comparison data, and outputs a calculation result.

The movement is stopped until the touch plate 73 touches the second travel switch 72, and the second travel switch 72 feeds back a position signal of the light measuring device 3 to the motion controller.

S7, the moving device 2 drives the light measuring device 3 to return to the initial position.

The motion controller controls the displacement stepping motor 22 in the electric cylinder to rotate reversely, so as to drive the light measuring device 3 to move reversely along the Y axis, and the light measuring device stops moving until the touch plate 73 touches the first travel switch 71, and the first travel switch 71 feeds back a position signal of the light measuring device 3 to the motion controller.

S8, the knife-edge-shaped ruler 6 and the standard knife-edge-shaped ruler 87 are driven to rotate simultaneously through the rotation driving device 5, and then the light measuring device 3 is driven by the moving device 2 to respectively carry out moving measurement on the standard knife-edge-shaped ruler and the knife-edge-shaped ruler.

The first driving turntable 52 is driven to rotate by the driving motor 51, and then the clamping mechanism 41 and the knife-edge-shaped ruler 6 clamped in the clamping mechanism 41 are driven to rotate, and the knife-edge-shaped ruler 6 to be detected swings by 15 degrees by taking the working edge of the knife-edge-shaped ruler as an axis according to the detection regulation. Meanwhile, the pneumatic clamping jaw 411 in the clamping mechanism 41 can drive the first connecting clamp 821 and the second connecting clamp 822 to synchronously rotate, so as to drive the standard knife-edge-shaped ruler 87 and the knife-edge-shaped ruler 6 to synchronously rotate, thereby greatly ensuring the detection accuracy.

The mobile device 2 drives the light measuring device 3 to respectively carry out mobile measurement on the standard knife edge-shaped ruler and the knife edge-shaped ruler, and after the measurement is finished, the mobile device 2 drives the light measuring device 3 to return to the initial position again.

After the detection is finished, the straight edge is swung in the opposite direction for 15 degrees, the detection is carried out again, and the straightness of the working edge of the knife edge-shaped ruler can be clearly seen through the calculation result output by the upper computer.

In step S8, the position signal collector knife edge shape straight scale 6 provided on the micrometer feeding type XYZ manual displacement stage 31 is deflected by an angle, and the collected signal is fed back to the motion controller, which feeds back the signal to the upper computer. If edge of a knife shape ruler 6 beat angle does not reach 15 or when exceeding 15, the utility model discloses can also realize the fine motion adjustment to standard edge of a knife shape ruler 87 and edge of a knife shape ruler 6 rotation angle through micrometer feeding type angle manual displacement platform 81, the process is as follows.

The dial indicator 811 is rotated by a human hand, the dial indicator 811 drives the rotating screw 812 to rotate, the upper part of the moving slide block 815 is arranged in the moving cavity 817 of the disc housing 813 in a sliding fit mode, the moving slide block 815 is matched with the rotating screw 812, and the moving slide block 815 can be driven to move left and right along the rotating screw 812. The movable sliding block 815 can move left and right and simultaneously drive the rotatable cylinder 814 to rotate through the telescopic rod 816. The rotatable cylinder 814 drives the rotating shaft fixedly connected to the rotatable cylinder to rotate, and further drives the rotating platform 8113 fixedly connected to the rotating shaft to rotate, so as to drive the standard knife-edge-shaped straight ruler 87 connected to the rotating platform 8113 to swing. And because the standard knife-edge-shaped ruler 87 is connected with the clamping and centering device 4 through the synchronous connecting and clamping structure 82, the clamping and centering device 4 and the standard knife-edge-shaped ruler 87 clamped in the clamping and centering device 4 can be driven to rotate when the standard knife-edge-shaped ruler 87 rotates, so that the micro-adjustment of the rotation angles of the standard knife-edge-shaped ruler 87 and the knife-edge-shaped ruler 6 is realized.

Claims (10)

1. Edge shape ruler work edge straightness accuracy automatic measuring device, its characterized in that: the device comprises a shell (9), wherein a rack (1), a grinding surface flat ruler (42) for supporting a knife-edge-shaped ruler (6) and a switching power supply for supplying power to the whole device are arranged in the shell (9), a clamping and centering device (4) for clamping and centering the knife-edge-shaped ruler (6) and a rotation driving device (5) which is connected with the clamping and centering device (4) and used for driving the clamping and centering device (4) and the knife-edge-shaped ruler (6) to rotate are arranged on the rack (1), and one end of the clamping and centering device (4) is connected with a light transmission gap data comparison device (8) which is used for synchronously acting with the knife-edge-shaped ruler (6) under the action of the clamping and centering device (4) and the rotation driving device (5) to realize standard light transmission gap data acquisition; the top of frame (1) is provided with through mobile device (2) and is used for realizing moving under mobile device (2) drives and measures and carry out measuring light measuring device (3) to standard printing opacity clearance in printing opacity clearance data comparison device (8) to knife edge shape ruler work edge straightness accuracy, the signal output part of light measuring device (3) is connected in the control system's that is used for the whole function of controlling means input, mobile device (2), the controlled end of centre gripping centering device (4) and rotation driving device (5) is connected respectively in control system's output.

2. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 1, wherein: the moving device (2) comprises an electric cylinder fixedly arranged at the top end of the frame (1) and a moving slide block (23) which is arranged on the moving end of the electric cylinder in a sliding fit mode and partially extends out of the electric cylinder.

3. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 2, wherein: light measuring device (3) are including respectively through micrometer feeding type XYZ manual displacement platform (31) synteny setting on removing slider (23) and lie in edge shape ruler (6) both sides and be used for transmitting laser to edge shape ruler printing opacity clearance laser instrument (33) and be used for receiving from edge shape ruler printing opacity clearance and see through laser light intensity's spectrum appearance (32), laser instrument (33), spectrum appearance (32) are in same horizontal straight line with edge shape ruler printing opacity clearance, the controlled end of laser instrument (33) is connected in control system's output, the signal output part of spectrum appearance (32) is connected in control system's input.

4. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 3, wherein: the laser (33) is an adjustable blue laser.

5. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 3, wherein: the micrometer feeding type XYZ manual displacement platform (31) is further provided with a position signal collector for collecting laser intensity data of the light measuring device (3) corresponding to the position of the knife-edge-shaped ruler (6) and the deflection angle of the knife-edge-shaped ruler (6), and the signal output end of the position signal collector is connected to the signal input end of the control system.

6. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 2, wherein: and a position limiting device (7) for limiting the moving stroke of the light measuring device (3) is arranged on the outer wall of the electric cylinder, and the signal output end of the position limiting device (7) is connected to the signal input end of the control system.

7. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 1, wherein: the clamping and centering device (4) comprises two positioning seats (47) vertically arranged at the bottom end of the rack (1), a grinding surface flat rule (42) is arranged between the two positioning seats (47), and the bottom end of the grinding surface flat rule (42) is limited and arranged on a leveling mechanism (44) for adjusting the flatness of the grinding surface flat rule (42) through a grinding surface flat rule limiting structure (46); the top ends of the opposite side walls of the two positioning seats (47) are detachably provided with clamping mechanisms (41) used for clamping and centering the knife edge-shaped ruler (6) left and right through a rotary driving device (5).

8. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 7, wherein: the rotary driving device (5) comprises a driving motor (51) with a fixed end arranged on the right side positioning seat and a driving shaft end extending out of the right side positioning seat, a first driving turntable (52) fixedly connected with the driving shaft end of the driving motor (51) and a second driving turntable (53) which is rotatably arranged on the left side positioning seat and is coaxial with the first driving turntable (52).

9. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 8, wherein: fixture (41) including fixed two pneumatic clamping jaw (411) that set up respectively on first drive carousel (52) and second drive carousel (53) lateral wall, can dismantle respectively between the clamping jaw end of two pneumatic clamping jaw (411) that set up with the water flat line and be connected with grip block (412) that are used for controlling centre gripping centering to notch shape ruler (6), have certain interval between the bottom face of grip block (412) and the top terminal surface of abrasive surface flat rule (42).

10. The automatic measuring device for the straightness of the working edge of the knife-edge-shaped ruler as claimed in claim 1, wherein: the light transmission gap data comparison device (8) comprises a fixed platform (8114), a standard gauge block gap flat crystal (83) arranged on the fixed platform (8114) and a standard knife-edge-shaped ruler (87) arranged above the standard gauge block gap flat crystal (83) in a contact mode, wherein the standard knife-edge-shaped ruler (87) is connected with a clamping and centering device (4) used for clamping and centering the knife-edge-shaped ruler (6) through a synchronous connection clamping structure (82); the micrometer feeding type angle manual displacement platform is characterized in that the standard knife-edge-shaped straight ruler (87) is connected with a micrometer feeding type angle manual displacement platform (81) used for achieving manual adjustment of the swing angle of the standard knife-edge-shaped straight ruler (87) through a knife-edge-shaped straight ruler fixing plate (8115), one end of the micrometer feeding type angle manual displacement platform (81) is rotatably arranged on the left side positioning seat (88), and the other end of the micrometer feeding type angle manual displacement platform (81) is fixedly connected with a fixing platform (8114).

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