CN102788560A

CN102788560A - Non-contact measuring system for detecting shape of woodwork PCD (Poly Crystal Diamond) tool

Info

Publication number: CN102788560A
Application number: CN2012102580905A
Authority: CN
Inventors: 何平; 叶佩青; 史少华; 方晨曦; 樊文刚
Original assignee: FOSHAN SHUNDE SAIRUI TOOL Co Ltd; FOSHAN SHUNDE SARUI NUMERICAL CONTROL ELECTRIC DISCHARGE MACHINES RESEARCH CENTER; Tsinghua University
Current assignee: FOSHAN SHUNDE SAIRUI TOOL Co Ltd; FOSHAN SHUNDE SARUI NUMERICAL CONTROL ELECTRIC DISCHARGE MACHINES RESEARCH CENTER; Tsinghua University
Priority date: 2012-07-24
Filing date: 2012-07-24
Publication date: 2012-11-21

Abstract

The invention relates to a non-contact measuring system for detecting the shape of a woodwork PCD (Poly Crystal Diamond) tool. The measuring system comprises a control system, a first servo motor, a second servo motor, a third servo motor, a fourth servo motor, a laser distance measuring sensor, a controller, an I/O (Input/Output) acquisition card and a woodwork PCD tool to be measured, wherein four servo motor movement locus control commands are embedded into the control system; the output end of the control system is connected with the four servo motors respectively; the first servo motor is used for driving the laser distance measuring sensor to move along an axis Z; the second servo motor and the third servo motor are used for driving the woodwork PCD tool to move along an axis X and an axis Y respectively; the fourth servo motor is used for driving the woodwork PCD tool to rotate; under the control of the controller, the laser distance measuring sensor is used for detecting a tested tooth of the woodwork PCD tool; a detection result is transmitted to the I/O acquisition card through the controller; the I/O acquisition card is used for transmitting acquired detection data to the control system; and the control system is used for recording coordinate values of the four servo motors and fitting the shape of the detected tooth of the woodwork PCD tool according to the coordinate value points. The non-contact measuring system can be widely applied to the tool shape measurement.

Description

A kind of contactless measuring system that is used to detect the carpenter PCD shape of tool

Technical field

The present invention relates to a kind of shape of tool measuring system, particularly about a kind of method of measuring its accurate shape at grinding carpenter PCD cutter before with the non-contact measurement mode.

Background technology

The PCD helical tooth blade is widely used in wood working industry, and its demand increases year by year.The outermost end that the most important shape index of grinding PCD cutter is its each cutting edge need be on the same cylindrical; Because the shape and the position deviation that produce during welding are unpredictable; So need be, and then draw the needed track of processing in the accurate position of foreprocess gauge blade cutting edge.The current metering system that adopts all is a contact type measurement; Directly measure each tooth horizontal direction moving coordinate and along the relation between the center cutter line rotational coordinates when motion; Measuring mode is very direct like this, and measurement point can directly generate the track of processing stand.But contact type measurement efficient is very low, has reduced effective process time of lathe, and after repeatedly measuring, needs to change probe, has increased the processing cost of Tool Manufacturer greatly.

Summary of the invention

To the problems referred to above, the purpose of this invention is to provide a kind of contactless measuring system that is used to detect the carpenter PCD shape of tool, its cost is lower, efficiency of measurement is higher.

For realizing above-mentioned purpose; The present invention takes following technical scheme: a kind of contactless measuring system that is used to detect the carpenter PCD shape of tool is characterized in that: it comprises control system, first servomotor, second servomotor, the 3rd servomotor, the 4th servomotor, laser range sensor, controller, I/O capture card and carpenter PCD cutter to be measured; Preset four said servomotor movement locus steering orders in the said control system; Said control system output terminal connects four said servomotors respectively; Said first servomotor drives said laser range sensor and moves along the Z axle; Said second servomotor and the 3rd servomotor drive said carpenter PCD cutter respectively and move along X axle, y-axis shift, and said the 4th servomotor drives said carpenter PCD cutter and rotate; Said laser range sensor is under said controller control; Detect said carpenter PCD cutter tooth to be detected; Testing result transfers to said I/O capture card through said controller; The detection data transmission that said I/O capture card will collect to said control system, said control system writes down four said servomotor coordinate figures, simulates the shape of said carpenter PCD cutter tooth to be detected according to the coordinate figure point.

Said laser range sensor can also adopt a kind of in infrared distance sensor, the ultrasonic range finder sensor.

The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention is owing to adopt laser displacement sensor to replace existing contact probe to detect the shape of tool; The A axle all detects back and forth in the time of needn't equally with former detection mode measuring each point, has improved efficiency of measurement greatly.2, the present invention is owing to adopt the non-contact measurement mode, and the probe that collision caused that has reduced contact type measurement damages, and has practiced thrift production cost.The present invention can extensively use in the shape of tool is measured.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present invention;

Fig. 2 is the detection synoptic diagram of the present invention when detecting the PCD shape of tool.

Embodiment

The present invention provides a kind of contactless measuring system that is used to detect the carpenter PCD shape of tool, and it utilizes the spiral wooden cutter PCD shape of tool of laser electric light non-contact measurement, and then generates the grinding track.Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.

Like Fig. 1, shown in Figure 2, the present invention includes control system 1, first servomotor 2, second servomotor 3, the 3rd servomotor 4, the 4th servomotor 5, laser range sensor 6, controller 7, I/O capture card 8 and carpenter PCD cutter 9 to be measured.Wherein, preset four servomotor movement locus steering orders in the control system 1.

Control system 1 output terminal connects first servomotor 2, second servomotor 3, the 3rd servomotor 4 and the 4th servomotor 5 respectively, and first servomotor 2 drives laser range sensors 6 and moves along the Z axle, is designated hereinafter simply as Z axle servomotor; Second servomotor 3 and the 3rd servomotor 4 are respectively applied for that to drive carpenter PCD cutter 9 moving along X axle, y-axis shift, below abbreviate X axle servomotor and Y axle servomotor respectively as; The 4th servomotor 5 is used to drive carpenter PCD cutter 9 and rotates, and is designated hereinafter simply as A axle servomotor.Laser range sensor 6 is under controller 7 controls; Carpenter PCD cutter 9 teeth 10 to be detected are detected; Testing result via controller 7 transfers to I/O capture card 8; Detection data transmission to the control system 1 that I/O capture card 8 will collect is by current four the servomotor coordinate figures of control system 1 record.Control system 1 repeats to control X axle servomotor 3 according to the movement locus that is provided with in advance and continues to move with Y axle servomotor 4; X axle, y-axis shift moved apart from identical when displacement detected with the last time respectively; At this moment; Laser range sensor 6 invariant positions, A axle servomotor 5 drive carpenter PCD cutters 9 and rotate, and write down when coming to the same thing when turning to distance and last time between laser range sensor 6 and the tooth to be detected 10; A axle servomotor 5 stops operating; And by pairing A axial coordinate value under the current X axle of control system 1 record, the Y axial coordinate, finish up to tooth 10 detections to be detected, simulate the shape of carpenter PCD cutter 9 teeth 10 to be detected according to the coordinate figure point that is write down by control system 1.

In the foregoing description, laser range sensor 6 can be to adopt other contactless distance measuring methods to realize, for example infrared distance sensor, ultrasonic range finder sensor etc.

In sum; The present invention in use; The touch sensor that adopts laser range sensor 6 to replace present lathe to use is measured carpenter PCD cutter 9 shapes; By control system 1 control Z axle, X axle, Y axle and A axle servomotor, and then drive laser displacement sensor 6 does relative motion with carpenter PCD cutter 9.After laser range sensor 6 moves to carpenter PCD cutter 9 teeth to be detected 10 tops; Carpenter PCD cutter 9 is driven and is done gap calibration translation along level by X axle servomotor 3, Y axle servomotor 4; Move by A axle servomotor 5 driven rotary simultaneously; Guarantee that the laser range sensor 6 that each control system 1 receives is identical with the distance of tooth 10 flank of tooth to be detected,, and then draw the accurate shape of cutter by control system 1 record coordinate figure this moment.

Above-mentioned each embodiment only is used to explain the present invention; The connection of each parts and structure all can change to some extent; On the basis of technical scheme of the present invention; All improvement and equivalents of the connection and the structure of individual component being carried out according to the principle of the invention all should not got rid of outside protection scope of the present invention.

Claims

1. contactless measuring system that is used to detect the carpenter PCD shape of tool, it is characterized in that: it comprises control system, first servomotor, second servomotor, the 3rd servomotor, the 4th servomotor, laser range sensor, controller, I/O capture card and carpenter PCD cutter to be measured; Preset four said servomotor movement locus steering orders in the said control system;

Said control system output terminal connects four said servomotors respectively; Said first servomotor drives said laser range sensor and moves along the Z axle; Said second servomotor and the 3rd servomotor drive said carpenter PCD cutter respectively and move along X axle, y-axis shift, and said the 4th servomotor drives said carpenter PCD cutter and rotate; Said laser range sensor is under said controller control; Detect said carpenter PCD cutter tooth to be detected; Testing result transfers to said I/O capture card through said controller; The detection data transmission that said I/O capture card will collect to said control system, said control system writes down four said servomotor coordinate figures, simulates the shape of said carpenter PCD cutter tooth to be detected according to the coordinate figure point.

2. a kind of contactless measuring system that is used to detect the carpenter PCD shape of tool as claimed in claim 1 is characterized in that: said laser range sensor can also adopt a kind of in infrared distance sensor, the ultrasonic range finder sensor.