CN1176787C - Centerless grinding machine precision monitoring apparatus - Google Patents
Centerless grinding machine precision monitoring apparatus Download PDFInfo
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- CN1176787C CN1176787C CNB031244912A CN03124491A CN1176787C CN 1176787 C CN1176787 C CN 1176787C CN B031244912 A CNB031244912 A CN B031244912A CN 03124491 A CN03124491 A CN 03124491A CN 1176787 C CN1176787 C CN 1176787C
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- feed mechanism
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- contact
- feed
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Abstract
The present invention discloses a centerless grinder precision monitoring device which is composed of a signal sampling and processing part and a resulting display part, wherein the signal sampling and processing part is composed of a contact type linear displacement sensor, a mounting fixture, a graduated disk and an inverse L-shaped support frame. The sensor is fixed in a center hole of the graduated disk via the mounting fixture and can rotate in a horizontal plane with the mounting fixture. The graduated disk is arranged on two parallel slots of a horizontal part of the L-shaped support frame and can move along a horizontal feed direction, and the inverse L-shaped support frame is tightly fixed on a bed end surface at the same side as a feed mechanism. A contact surface of the sensor is always contact with an end surface of a track and is composed by the sequential connection of a contact type raster rule, a differential amplifier circuit, a shaping circuit and a frequency multiplication subdivide gating circuit. The sensor can convert displacement signals of the feed mechanism into electric signals, and the electric signals are input into the resulting display part which is composed of a reversible counter and a digital display after treatment. The present invention realizes the direct monitoring of the feed amount of the feed mechanism and the indirect monitoring of the vibration of a wheel frame of the centerless grinders.
Description
Technical field
The present invention relates to the regulation and control of grinding accuracy, especially a kind of precision monitoring of centerless grinder.
Background technology
Existing centerless grinder such as MT1040, MT1020 etc., its machining accuracy is 0.002mm under normal running conditions (friction, wearing and tearing etc.), simultaneously its guide wheel has-1～3 ℃ angle of revolution in horizontal plane, but therefore trimming wheel or the guide wheel workpiece of grinding certain taper scope just not.Abrasive dust enters the feed mechanism guide rail or other reasons has produced wearing and tearing or wheel frame vibration but work as, the capital causes mechanical type feed mechanism dial amount of feeding sign value and actual grinding volume production to give birth to difference, thereby grinding accuracy can not accurately be controlled, and the converted products qualification rate descends.
Summary of the invention
The precision supervising device that the purpose of this invention is to provide a kind of centerless grinder, realize the direct monitoring of the centerless grinder feed mechanism amount of feeding, the amount of feeding that operation is regulated can reflect actual grinding amount exactly, guarantee grinding accuracy, can realize indirect control and supervision simultaneously the vibration of centerless grinder wheel frame.
Centerless grinder precision supervising device of the present invention comprises that signals collecting and processing, result show two parts.Signals collecting and processing section are made up of contact orthoscopic displacement transducer, sectional fixture, index dial and the L bracket of falling; Sensor passes the horizontal through hole of sectional fixture, and is fixedly clamped by it, and the vertical axis of sectional fixture bottom is mounted in the centre bore of index dial, and sectional fixture can turn round in this centre bore, drives sensor simultaneously and turns round in horizontal plane; Index dial is installed on two parallel slots parallel with the direction of feed of feed mechanism of grinding machine of the horizontal component of falling the L bracket by screw, can move along parallel slot in the horizontal direction; The vertical component of L bracket of falling is fastened on the grinder bed end face with the feeding structure homonymy with screw.Tangent displacement sensor contact plane remains face with the guide rail end surface of feed mechanism of grinding machine and contacts, it is linked in sequence by contact grating chi, differential amplifier circuit, shaping circuit and frequency multiplication segmentation gate circuit and forms, with the horizontal signal of feed mechanism of grinding machine change into the signal of telecommunication and through amplify and handle after the input results display part.The display part is made up of forward-backward counter and digital display as a result, directly shows the amount of feeding of feed mechanism.
Because contact linear displacement transducer of the present invention can move horizontally in the direction of feed of feed mechanism, can turn round at horizontal plane by sectional fixture again, and keep identical angle of revolution with the wheel frame of grinding machine, therefore the contact that can guarantee sensor remains face with the guide rail end surface of feed mechanism and contacts, realized the direct demonstration of the amount of feeding on digital display device of feed mechanism, can directly regulate the amount of feeding of feed mechanism according to this show value, improve transmission accuracy, realize accurately location, thereby the amount of feeding that has overcome the feed mechanism dial that existing centerless grinder may exist is regulated sign value and the defective that actual grinding amount is not inconsistent, and makes the grinding accuracy all-the-time stable be controlled at 0.002mm; Unstable if digital display device shows numeral in addition, reflect that then the grinding machine wheel frame has vibration, can eliminate vibration by searching reason, thereby can realize the indirect control and supervision of wheel frame vibration is beneficial to and guarantees grinding accuracy.
Apparatus of the present invention are simple and compact for structure simultaneously, and cost is lower, and the monitoring amount of feeding is intuitively quick, and monitor data is reliable and stable.Improve slightly, also can be used for the precision monitoring of other grinding machines.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention
Fig. 2 is control principle figure of the present invention
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
The precision supervising device of centerless grinder MT1040A comprises that signals collecting and processing, result show two parts.Signals collecting and processing section are made up of contact orthoscopic displacement transducer 1, sectional fixture 15, index dial 2 and the L bracket 3 of falling.Sensor 1 passes the horizontal through hole of sectional fixture 15, and it is clamped fixing, the vertical axis 17 of sectional fixture 15 bottoms is installed in the centre bore of index dial 2, adjust sectional fixture 15 in horizontal plane the angle of revolution and the angle of revolution of grinding machine wheel frame 19 in full accord after, with holding screw 16 sectional fixture 16 is fastened in the centre bore of index dial 2.Index dial 2 is installed in down in two parallel slots 5 of L bracket 3 horizontal components by 4 screws 4, parallel slot 5 is parallel with the direction of feed of feed mechanism of grinding machine 7, move horizontally index dial 2, make the contact plane of sensor 1 be adjacent to the guide rail end surface 8 of feed mechanism, and after compacted, lock 4 screws 4.The vertical component of L bracket 3 of falling then is fixed on the grinder bed end face 18 with feeding grinder structure 7 homonymies by screw 6.
Sensor 1 is linked in sequence and is formed by contact grating chi 9, differential amplifier circuit 10, shaping circuit 11, frequency multiplication segmentation gate circuit 12.Because sensor 1 can be with index dial 2-5 °～+ 5 ° of horizontal plane revolutions, can move with the direction of feed of index dial 2 simultaneously at feed mechanism 7, so when adjusting the amount of feeding, and in Grinding Process, the contact plane that can guarantee sensor 1 remains face with the guide rail end surface 8 of feed mechanism 7 and contacts, thereby realizes the reliable and stable monitoring to feed mechanism 7 amount of feeding.
The display part is made of forward-backward counter 13 and D80 digital display device 14 as a result, and both can be used as integrative-structure.
During apparatus of the present invention work, by contact grating chi 9 the feed mechanism of grinding machine horizontal displacement signal of accepting is converted into the signal of telecommunication, after differential amplifier circuit 10 amplifies, change square-wave signal into by shaping circuit 11, input forward-backward counter 13 carries out step-by-step counting after being changed into burst pulse and carried out the frequency multiplication segmentation by frequency multiplication segmentation gate circuit 12 again, and directly show the amount of feeding of feed mechanism 7 by digital display device 14, the operator then directly regulates feed mechanism 7 according to show value, eliminate driving error, realize accurately location, thereby reach the accurate control of converted products size.
Through the grinding experiment and the production of hard alloy bar, the grinding accuracy all-the-time stable of workpiece is at 0.002mm, and product percent of pass has improved 12%, reaches more than 95%.
The demonstration of digital display device 14 numeral is eliminated vibration by searching reason, thereby can be realized the indirect control and supervision of wheel frame vibration if occur beating, when unstable, reflect that then the grinding machine wheel frame has vibration, improves the stability of grinding accuracy.
Claims (1)
1, a kind of centerless grinder precision supervising device, it is characterized in that: it comprises signals collecting and processing, the result shows two parts, the contact linear displacement transducer (1) that described signals collecting and processing section are contacted with guide rail end surface (8) face of remaining of feed mechanism of grinding machine (7) by the contact plane, clamp described sensor (1) in the horizontal through hole and bottom vertical axle (17) is installed on the sectional fixture (15) in index dial (2) centre bore, index dial (2), and vertical component is fixed in the lathe bed end face (18) of feed mechanism (7) homonymy is last, and horizontal component has two L brackets (3) compositions that install and fix index dial (2) and parallel with described feed mechanism (7) direction of feed parallel slot (5); Described sensor (1) is linked in sequence by the contact grating chi (9) that the horizontal displacement signal of feed mechanism (7) can be changed into the signal of telecommunication, differential amplifier circuit (10), shaping circuit (11) and frequency multiplication segmentation gate circuit (12) and forms; Described display part as a result is made up of the forward-backward counter (13) and the direct digital display device (14) of feed mechanism (7) amount of feeding that shows of frequency multiplication segmentation gate circuit (12) output signal of receiving sensor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031244912A CN1176787C (en) | 2003-06-05 | 2003-06-05 | Centerless grinding machine precision monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031244912A CN1176787C (en) | 2003-06-05 | 2003-06-05 | Centerless grinding machine precision monitoring apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1454748A CN1454748A (en) | 2003-11-12 |
| CN1176787C true CN1176787C (en) | 2004-11-24 |
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ID=29260312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031244912A Expired - Fee Related CN1176787C (en) | 2003-06-05 | 2003-06-05 | Centerless grinding machine precision monitoring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1176787C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941182B (en) * | 2010-07-29 | 2013-04-03 | 河南科技大学 | Grinder microcomputer control system |
| CN102490087B (en) * | 2011-11-28 | 2013-12-25 | 武汉理工大学 | Device and method for measuring axial vibration of feed drive mechanism of numerical control machine |
| CN102528580B (en) * | 2012-02-03 | 2013-09-11 | 卓利华 | Automatic device for carrying out plunge-cut grinding on shaft end neck on centerless grinder |
| CN108500777B (en) * | 2018-04-04 | 2023-08-04 | 中国工程物理研究院激光聚变研究中心 | Detection device and detection method for shape error of polishing disc in full-caliber annular polishing |
| CN114905339A (en) * | 2022-04-29 | 2022-08-16 | 江西江钨硬质合金有限公司 | Processing technology of high-precision hard alloy bar |
-
2003
- 2003-06-05 CN CNB031244912A patent/CN1176787C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1454748A (en) | 2003-11-12 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041124 Termination date: 20190605 |