CN103398670B - A kind of shape of tool measurement mechanism - Google Patents
A kind of shape of tool measurement mechanism Download PDFInfo
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- CN103398670B CN103398670B CN201310345958.XA CN201310345958A CN103398670B CN 103398670 B CN103398670 B CN 103398670B CN 201310345958 A CN201310345958 A CN 201310345958A CN 103398670 B CN103398670 B CN 103398670B
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Abstract
A kind of shape of tool measurement mechanism, comprise linear axis, base plate, mounting seat, precision rotation axle, optical lens, CCD camera and two-dimensional adjustment platform, linear axis is arranged on base plate, described precision rotation axle is arranged on linear axis, cutter is lived by precision rotation axle clamp, described optical lens and CCD camera are positioned at directly over cutter, two-dimensional adjustment platform be positioned at cutter below, be fixed on base plate by mounting seat.Present invention ensures that holding cutter clamps firm, that kinematic accuracy is high job stability in measuring process, the artificial original method capturing cutter and carry out measuring is adopted compared to transmission, the present invention can realize the intervention of measuring process prosthetic, and guarantee the contact force for same specification cutter holding all the time, guarantee that measuring process is to cutter self not damaged, completely avoid human factor causes measuring accuracy to be difficult to the problem improved, and provides scheme for realizing shape of tool automatic measurement.
Description
Technical field
The present invention relates to technical field of measuring equipment, be specifically related to a kind of shape of tool measurement mechanism.
Background technology
Cutter is used for the professional tool of processing precise part as numerically-controlled machine, and the height of himself precision directly decides by the precision of the precision component of its processing.Along with the develop rapidly of accurate industrial technology, the requirement on machining accuracy of precision component is progressively improved, in order to adapt to the fast development of precision processing technology, as the tool sharpening precision of instrument, more and more become the emphasis of precision manufactureing area research, no matter be process brand-new cutter or to using the cutter of wearing and tearing of a period of time to carry out secondary reconditioning processing, be not always the case.In order to obtain the final precision of cutter, except raising tool sharpening precision, the form parameters such as the circularity of necessary measurement means process tool to measure, diameter and machining feature size are also needed whether to conform to quality requirements.
Tradition is applied to the detection method of shape of tool parameter measurement, and the general survey instrument such as spiral dial gauge or vernier caliper that adopts carries out manual contact type measurement.Hold cutter on the other hand by surveyor during measurement, hold survey instrument on the other hand, take to inspect metering system by random samples, Stochastic choice measurement point on cutter, reads corresponding measurement data.Because contact type measurement needs to keep in touch with tool surface all the time in measuring process, easily cause the wearing and tearing of tool surface and survey instrument bayonet socket, and different surveyors causes when operating this contact force different, cause measuring repeatable accuracy not high, be difficult to meet application requirement.Therefore, utilize the non-contact measurement mode of optics more and more welcome.This metering system takes precision optics camera lens and CCD, takes pictures to the cutter be positioned at immediately below it, and recycling machine vision and image processing techniques, calculate the form parameters such as required circularity, diameter and machining feature size by Survey Software.In order to realize the comprehensive measurement for form parameters such as circularity, diameter and machining feature sizes in same cutter measurement device simultaneously, namely precision rotation axle is needed to carry out stable holding to cutter, can rotate by accurate strips cutter after clamping, coordinate optical lens and CCD again, to cutter circumferencial direction steady shot picture rich in detail.Shooting process cutter rotates more steady, and rotational angle is more accurate, then final then higher to each form parameter measuring accuracy.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind ofly guarantees that holding cutter clamps firm, that kinematic accuracy is high shape of tool measurement mechanism in measuring process.
For achieving the above object, the invention provides a kind of shape of tool measurement mechanism, comprise linear axis, base plate, mounting seat, precision rotation axle, optical lens, CCD camera and two-dimensional adjustment platform, linear axis is arranged on base plate, described precision rotation axle is arranged on linear axis, cutter is lived by precision rotation axle clamp, and described optical lens and CCD camera are positioned at directly over cutter, two-dimensional adjustment platform be positioned at cutter below, be fixed on base plate by mounting seat.
As preferably, the inner structure of described turning axle adopts modular design method design, comprises with lower module:
Mounting seat module, comprise mount pad, interior outer end cap, left and right end cap, drawhead base and drawhead end cap, left and right end cap be located at respectively mount pad two ends, undertaken being connected by O-ring seal and mount pad and seal, drawhead base is fixed on the left end of left end cap, drawhead end cap is located at the left side of drawhead base, outer end cap is fixed on the right-hand member of right end cap, and inner end cap is located at the right side of outer end cap;
Driver module, comprises motor and rotor connecting member, and motor is fixed on mount pad inner flange by gib screw, and rotor connecting member is directly fixed on the rotor of motor by its gib screw, and rotating connector Internal and external cycle is all provided with O-ring seal;
Cutter holding module, comprises push rod rollback air connector, air connector is pushed away before push rod, collet chuck, chuck handle, chuck installing ring, precision spring, empty push rod, bearing, end ring, end ring pressed seat, left piston, right piston and piston boit, described empty push rod runs through left and right end cap, mount pad, outer end cap, piston boit, drawhead base and drawhead end cap, end ring pressed seat is located at the left side of drawhead end cap, and end ring is located at the right-hand member of end ring pressed seat and is located in drawhead end cap, and bearing is located at the right-hand member of end ring, the left side of drawhead base, described left piston is located between bearing and drawhead end cap, and right piston is located between bearing and drawhead base, and described piston boit is located at the inner side of outer end cap, precision spring is located between piston boit and inner end cap, and described chuck installing ring is located in inner end cap, right part runs through inner end cap, and chuck handle is located at the right-hand member of outer end cap and is enclosed within piston boit, chuck installing ring, the outside of precision spring and inner end cap, described collet chuck left end props up precision spring, run through inner end cap and chuck installing ring, right-hand member runs through chuck handle.
As preferably, described empty push rod leads directly to from left to right into piston boit endoporus, and is attached thereto and is integrated, and empty push rod outer ring is coordinated by O-ring seal with rotor connecting member endoporus.
As preferably, described bearing is fixed in the middle of left and right piston, and left and right piston is installed in after being laminated in drawhead base, and outer end is fixed by drawhead end cap, and is sealed it by O-ring seal.
As preferably, described chuck handle is directly fixed on by screw on the piston rod right side that connects as one with empty push rod.
As preferably, described collet chuck is fastened on chuck installing ring by accurate thread, and chuck installing ring is fixed in inner end cap by fixing jackscrew and is integrally formed.
As preferably, described inner end cap is directly fixed on the right side of rotor connecting member.
The invention discloses a kind of shape of tool measurement mechanism, ensure that holding cutter clamps in measuring process firm, the job stability that kinematic accuracy is high, for realizing circularity in same cutting tools measurement equipment, the precision measurement of the form parameters such as diameter and machining feature size provides possibility, the artificial original method capturing cutter and carry out measuring is adopted compared to transmission, the present invention can realize the intervention of measuring process prosthetic, and guarantee the contact force for same specification cutter holding all the time, guarantee that measuring process is to cutter self not damaged, completely avoid human factor causes measuring accuracy to be difficult to the problem improved, scheme is provided for realizing shape of tool automatic measurement.
Accompanying drawing explanation
Fig. 1 is the cut-away view of precision rotation axle;
Fig. 2 is the external structure of precision rotation axle;
Fig. 3 is the external structure of precision rotation axle;
Fig. 4 is the structural representation of the embodiment of the present invention.
In figure: 1. collet chuck; 2. chuck handle; 3. chuck installing ring; 4. inner end cap; 5. precision spring; 6. piston boit; 7. outer end cap; 8. rotor connecting member gib screw; 9. right end cap; 10. right end cap O-ring seal; 11. rotor connecting member endoporus O-ring seals; 12. empty push rods; 13. mount pads; 14. left end cap O-ring seals; 15. left end caps; 16. drawhead gib screws; 17. drawhead bases; 18. right piston packings; 19. drawhead end cap gib screws; 20. bearings; 21. end rings; 22. end ring pressed seats; 23. left piston chambeies; 24. drawhead end cap seal circles; 25. left pistons; 26. left piston O-ring seals; 27. right pistons; 28. right piston packings; 29. right plunger shaft; 30. left end cap endoporus O-ring seals; 31. motor mounting screws; 32. motors; 33. rotor adaptor exterior seal rings; 34. rotor connecting member; 35. piston boit O-ring seals; 36. chuck installing rings fix jackscrew; 37. drawhead end caps; 38. push rod rollback air connectors; Air connector is pushed away before 39. push rods; 40. servomotors; 41. base plates; 42. linear axis; 43. precision rotation axles; 44. tested cutters; 45. optical lens; 46.CCD camera; 47. camera lenses and CCD mount pad; 48. two-dimensional adjustment platforms; 49. mounting seat.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
See shown in Fig. 1 to Fig. 4, a kind of shape of tool measurement mechanism, comprise linear axis 42, base plate 41, mounting seat 49, precision rotation axle 43, optical lens 45, CCD camera 46 and two-dimensional adjustment platform 48, linear axis 42 is arranged on base plate 41, described precision rotation axle 43 is arranged on linear axis 42, cutter 44 is clamped by precision rotation axle 43, optical lens 45 and CCD camera 46 are positioned at directly over cutter 44, two-dimensional adjustment platform 48 is positioned at the below of cutter 44, be fixed on base plate 41 by mounting seat 49, the inner structure of described turning axle 43 adopts modular design method design, comprise with lower module:
Mounting seat module, comprise mount pad 13, interior outer end cap, left and right end cap, drawhead base 17 and drawhead end cap 37, left and right end cap be located at respectively mount pad 13 two ends, carry out being connected with mount pad 13 by O-ring seal and seal, drawhead base 17 is fixed on the left end of left end cap 15, drawhead end cap 37 is located at the left side of drawhead base 17, outer end cap 7 is fixed on the right-hand member of right end cap 9, and inner end cap 4 is located at the right side of outer end cap 7;
Driver module, comprise motor 32 and rotor connecting member 34, motor 32 is fixed on mount pad 13 inner flange by gib screw 31, rotor connecting member 34 is directly fixed on the rotor of motor 32 by its gib screw, rotating connector 34 Internal and external cycle is all provided with O-ring seal 33, and described inner end cap 4 is directly fixed on the right side of rotor connecting member 34;
Cutter holding module, comprises push rod rollback air connector 38, air connector 39 is pushed away before push rod, collet chuck 1, chuck handle 2, chuck installing ring 3, precision spring 5, empty push rod 12, bearing 20, end ring 21, end ring pressed seat 22, left piston 25, right piston 27 and piston boit 6, described empty push rod 12 runs through left and right end cap, mount pad 13, outer end cap 7, piston boit 6, drawhead base 17 and drawhead end cap 37, end ring pressed seat 22 is located at the left side of drawhead end cap 37, and end ring 21 is located at the right-hand member of end ring pressed seat 22 and is located in drawhead end cap 37, and bearing 20 is located at the right-hand member of end ring 21, the left side of drawhead base 17, bearing 20 is fixed on a left side, in the middle of right piston, and left, be installed in drawhead base 17 after right piston is laminated, outer end is fixed by drawhead end cap 37, and by O-ring seal, it is sealed, described left piston 25 is located between bearing 20 and drawhead end cap 37, right piston 27 is located between bearing 20 and drawhead base 17, described piston boit 6 is located at the inner side of outer end cap 7, empty push rod 12 leads directly to into piston boit 6 endoporus from left to right, and be attached thereto and be integrated, empty push rod 12 outer ring is coordinated by O-ring seal 11 with rotor connecting member 34 endoporus, precision spring 5 is located between piston boit 6 and inner end cap 4, and described chuck installing ring 3 is located in inner end cap 4, right part runs through inner end cap 4, and chuck handle 2 is located at the right-hand member of outer end cap 7 and is enclosed within piston boit 6, chuck installing ring 3, the outside of precision spring 5 and inner end cap 4, be directly fixed on by screw on piston rod 6 right side connected as one with empty push rod 12, described collet chuck 1 left end props up precision spring 5, run through inner end cap 4 and chuck installing ring 3, right-hand member runs through chuck handle 2, is fastened on chuck installing ring 3 by accurate thread, and chuck installing ring 3 is fixed in inner end cap 4 by fixing jackscrew 36 and is integrally formed, and inner end cap 4 is directly fixed on the right side of rotor connecting member 34.
When pushing away air connector 39 before the push rod to drawhead end cap 37 and supplying pressurized air, left piston chamber 23 has the pressurized air of certain pressure by being full of, promote empty push rod 12 to move right, thus the piston boit 6 of empty push rod 12 right-hand member also will move right together, thus extrude spring 5 on the right side of it, promote chuck handle 2 simultaneously and outwards move, after chuck handle 2 moves right, incite somebody to action progressively extrusion spring chuck 1, cutter 44 will be held tightly after collet chuck 1 is squeezed, so achieve the Automatic-clamping to cutter 44, after clamping, motor 32 rotates, and this rotary motion drives inner end cap 4, chuck handle 2, collet chuck 1 to rotate together with cutter 44 by rotor connecting member 32, so then achieves the automatic rotation motion of cutter 44, motor 32 carry its tools 44 is with while certain speed motion, coordinate optical lens 45 and CCD camera 46 pairs of cutter 44 circumferencial direction shooting images, after measuring a cutter 44, motor 32 stops operating, close the pressurized air being supplied to draw-bar seat left piston chamber 23 simultaneously, and supply pressurized air to the right plunger shaft 29 of draw-bar seat, then right piston 27 will promote empty push rod 12 left, along with empty push rod 12 is return left, drive piston boit 6 rollback left on the right side of empty push rod 12, the precision spring 5 of pressurized is progressively extended before, promoting piston boit 6 returns in rotor connecting member 34, thus drive chuck handle 2 to return left, final trip spring chuck 1, so achieve automatically unclamping of cutter 44, by the way, achieve the Automatic-clamping of cutter 44, unclamp and precision rotation action, in use, cutter 44 inserts in collet chuck 1 hole, the collet chuck 1 of corresponding specification can be selected according to the cutter 44 of different-diameter specification, after Pneumatic Control Technology clamp-on tool, motor 32 drives it at the uniform velocity to rotate with certain speed, be positioned at the optical lens 45 directly over cutter 44 and the image on CCD camera 46 captured in real-time tool circumferential direction, image information is fed back to measuring system, by machine vision and image processing techniques, tool diameter can be obtained, circularity, each form parameter information of machining feature, diameter value cutter is mapped to the rectangular width value on measurement plane, be mapped under cutter is positioned at different rotational angle on measurement plane and then can produce the rectangular width value of many groups, analyze the variable of this group width value, then can obtain the circularity parameter of cutter, machining feature on cutter then carries out splicing contrast by tool motion to the image information of circumferencial direction each position, finally piece together the map image of each machining feature on measurement plane on cutter, the each machining feature parameter value of relevant cutter can be extracted from this image, in the above described manner, finally realize comprehensive measurement functions of form parameter such as tool diameter, circularity, machining feature.
The invention discloses a kind of shape of tool measurement mechanism, ensure that holding cutter clamps in measuring process firm, the job stability that kinematic accuracy is high, for realizing circularity in same cutting tools measurement equipment, the precision measurement of the form parameters such as diameter and machining feature size provides possibility, the artificial original method capturing cutter and carry out measuring is adopted compared to transmission, the present invention can realize the intervention of measuring process prosthetic, and guarantee the contact force for same specification cutter holding all the time, guarantee that measuring process is to cutter self not damaged, completely avoid human factor causes measuring accuracy to be difficult to the problem improved, scheme is provided for realizing shape of tool automatic measurement.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a shape of tool measurement mechanism, it is characterized in that, comprise linear axis, base plate, mounting seat, precision rotation axle, optical lens, CCD camera and two-dimensional adjustment platform, linear axis is arranged on base plate, described precision rotation axle is arranged on linear axis, cutter is lived by precision rotation axle clamp, and described optical lens and CCD camera are positioned at directly over cutter, two-dimensional adjustment platform be positioned at cutter below, be fixed on base plate by mounting seat;
The inner structure of described precision rotation axle adopts modular design method design, comprises with lower module:
Mounting seat module, comprise mount pad, interior outer end cap, left and right end cap, drawhead base and drawhead end cap, left and right end cap be located at respectively mount pad two ends, undertaken being connected by O-ring seal and mount pad and seal, drawhead base is fixed on the left end of left end cap, drawhead end cap is located at the left side of drawhead base, outer end cap is fixed on the right-hand member of right end cap, and inner end cap is located at the right side of outer end cap;
Driver module, comprises motor and rotor connecting member, and motor is fixed on mount pad inner flange by gib screw, and rotor connecting member is directly fixed on the rotor of motor by its gib screw, and rotating connector Internal and external cycle is all provided with O-ring seal;
Cutter holding module, comprises push rod rollback air connector, air connector is pushed away before push rod, collet chuck, chuck handle, chuck installing ring, precision spring, empty push rod, bearing, end ring, end ring pressed seat, left piston, right piston and piston boit, described empty push rod runs through left and right end cap, mount pad, outer end cap, piston boit, drawhead base and drawhead end cap, end ring pressed seat is located at the left side of drawhead end cap, and end ring is located at the right-hand member of end ring pressed seat and is located in drawhead end cap, and bearing is located at the right-hand member of end ring, the left side of drawhead base, described left piston is located between bearing and drawhead end cap, and right piston is located between bearing and drawhead base, and described piston boit is located at the inner side of outer end cap, precision spring is located between piston boit and inner end cap, and described chuck installing ring is located in inner end cap, right part runs through inner end cap, and chuck handle is located at the right-hand member of outer end cap and is enclosed within piston boit, chuck installing ring, the outside of precision spring and inner end cap, described collet chuck left end props up precision spring, run through inner end cap and chuck installing ring, right-hand member runs through chuck handle.
2. measurement mechanism according to claim 1, is characterized in that, described empty push rod leads directly to from left to right into piston boit endoporus, and is attached thereto and is integrated, and empty push rod outer ring is coordinated by O-ring seal with rotor connecting member endoporus.
3. measurement mechanism according to claim 1, it is characterized in that, described bearing is fixed in the middle of left and right piston, and left and right piston is installed in after being laminated in drawhead base, outer end is fixed by drawhead end cap, and is sealed it by O-ring seal.
4. measurement mechanism according to claim 2, is characterized in that, described chuck handle is directly fixed on by screw on the piston rod right side that connects as one with empty push rod.
5. measurement mechanism according to claim 1, is characterized in that, described collet chuck is fastened on chuck installing ring by accurate thread, and chuck installing ring is fixed in inner end cap by fixing jackscrew and is integrally formed.
6. measurement mechanism according to claim 5, is characterized in that, described inner end cap is directly fixed on the right side of rotor connecting member.
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| CN103398670B true CN103398670B (en) | 2016-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI611826B (en) * | 2016-07-07 | 2018-01-21 | 綠點高新科技股份有限公司 | Manufacturing method of a golf club head and a cover plate |
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