CN101279430B - Machine tool chief axis dividing apparatus - Google Patents
Machine tool chief axis dividing apparatus Download PDFInfo
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- CN101279430B CN101279430B CN2008100282498A CN200810028249A CN101279430B CN 101279430 B CN101279430 B CN 101279430B CN 2008100282498 A CN2008100282498 A CN 2008100282498A CN 200810028249 A CN200810028249 A CN 200810028249A CN 101279430 B CN101279430 B CN 101279430B
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- spindle
- locating
- indexing plate
- main shaft
- indexing
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Abstract
The invention patent discloses an indexing device used on a machine tool spindle, the indexing plate of which takes a shape of an external gear and is arranged on the spindle. A locating briquetting is arranged on a spindle box, and convex teeth are arranged at the side of the locating briquetting relative to the indexing plate. The convex teeth are arranged in the datum position where the spindle rotates and the tooth profiles of the convex teeth match with those of the indexing plate, and the locating briquetting is driven by a driving mechanism and can be driven by the driving mechanism to do a reciprocating motion in the radial direction of the spindle. A spindle motor drives the spindle and the indexing plate to rotate to a designated angle; after an initial locating is completed, the driving mechanism can drive the locating briquetting to move in the radial direction. After the convex teeth lean against the indexing plate, the indexing plate can be pulled to rotate among the teeth, thus causing the shaft of the indexing plate to rotate to the position where the indexing plate is firmly and tightly meshed with the convex teeth so as to ensure that the spindle can automatically align an indexing angle and accurate locating is realized. The indexing device has high locating accuracy, and simple and convenient processing owing to that both the indexing plate and the locating briquetting are external gears.
Description
Technical field
The present invention relates to a kind of indexing means that is used to control the angle of machine tool chief axis.
Technical background
Numerically controlled lathe not only need carry out turning processing to workpiece, needs and can carry out the processing of modes such as milling, boring and bore hole to the side or the end face of workpiece toward contact.In order to guarantee lathe when side surface of workpiece or end face being carried out operation such as milling, boring, bore hole, workpiece can be located exactly, needs to control accurately the angle of main shaft.Usually the main shaft angle of lathe is all controlled through chief axis dividing apparatus.Existing chief axis dividing apparatus mainly contains two kinds, and a kind of is the built-in sensor indexing means, and a kind of is contrate gear formula mechanical dividing device.
The built-in sensor indexing means, it comprise be fixed on the main shaft with the main shaft rotating part be installed on the part of not rotating on the main spindle box with main shaft, sensor can accurately measure the relative angle between above-mentioned two parts; When the angle of main shaft was undesirable, sensor was given the control system with the signal feedback that records, through the motor of control system control main shaft rotation; The main shaft angle is met the requirements; Its positioning accuracy is high, can stepless calibration, however equipment price is very expensive; And technology is grasped outside returning to the homeland, and uses limited.
Contrate gear formula mechanical dividing device includes two contrate gears, and one of which is individual to be fixed on the main shaft; Another is fixed in the main spindle box, and its gear according to fluted disc is realized the classification calibration, and its indexing accuracy is higher equally; Right its complex structure, the grinding of contrate gear is complicated, and cost is higher equally; And it is bigger to take up room, and when being used for the main shaft of numerical control machine tool calibration, seems burdensome.
Summary of the invention
The present invention is intended to provide a kind of low cost, high accuracy, the indexing means of compact conformation.
Machine tool chief axis dividing apparatus of the present invention, its index dial is the external gear shape, is installed on the main shaft; The location briquetting is installed on the main spindle box; Itself and index dial opposite side have double wedge, and double wedge is positioned at the reference position that main shaft rotates, and the profile of tooth of its profile of tooth and index dial matches; The location briquetting by drive mechanism, can by drive mechanism its along main shaft diameter to reciprocating motion.
Machine tool chief axis dividing apparatus of the present invention, during the adjustment main spindle's, at first machine tool control system control spindle motor rotates, and driving main shaft and index dial turn to specified angle, accomplish the coarse positioning of main shaft; Then drive mechanism location briquetting is inwardly along the radial motion of main shaft; Double wedge and index dial are offseted, and under the pressure effect of driving mechanism, double wedge promotes index dial and rotates between cog; Make index dial turn to the position with the double wedge tight engagement; Index dial drives main shaft simultaneously and rotates, and makes main shaft automatic capturing sub-degree angle, realizes the accurate location of the angle of main shaft.Its positioning accuracy is high, and index dial is external gear with the location briquetting, and its processing is simple, convenient; In addition, location briquetting volume is little, and the quantity of the double wedge that need process on it is few, both provides cost savings, and makes product structure compact more again.
Description of drawings
Fig. 1 is the structural representation of the described machine tool chief axis dividing apparatus of patent of the present invention.
The specific embodiment
Like Fig. 1, a kind of machine tool chief axis dividing apparatus, its index dial 1 is the external gear shape; Be installed on the main shaft 2, location briquetting 3 is installed on the main spindle box 4, and itself and index dial 1 opposite side have double wedge 5; Double wedge 5 is positioned at the reference position that main shaft rotates; The profile of tooth of its profile of tooth and index dial 1 matches, the location briquetting 3 by drive mechanism, can by drive mechanism its along main shaft diameter to reciprocating motion.Said driving mechanism is a cylinder 6, and cylinder 6 is installed in the side of main spindle box, the radial direction of main shaft, and its piston 7 connects an end of bolt rod 8, and bolt rod 8 is positioned at pin bushing 9, and its other end connects firmly with location briquetting 3.
When need control main shaft angle; Machine tool control system is sent the commands for controlling spindle motor and is rotated required angle; Drive main shaft 2 and turn to specified angle with the index dial 1 that is installed on the main shaft; Because the control accuracy problem of spindle motor, its precision only can only be accomplished the Primary Location of main shaft about 0.1 degree usually.After the Primary Location, control cylinder 6 actions of control system are moved piston 7 in cylinder; Promote location briquettings 3 to the main shaft radial motion through bolt rod 8, when location briquetting 3 moves to double wedge 5 and offsets with index dial 1, because there is deviation in index dial 1 angle; The gear of double wedge 5 and index dial 1 can not fit like a glove; Have deviation therebetween, there is rotating angle between cog, under the thrust of cylinder 6; Double wedge 5 can promote index dial 1 and rotate between cog, meshes fully until the gear of double wedge 5 with index dial 1.Because double wedge 5 is in the reference position, thereby also just makes the external gear of index dial 1 also just go to the reference position, thus the sub-degree angle that made main shaft 2 automatic capturings, the accurate location of having realized main shaft, its positioning accuracy can reach 0.01 degree.
In order to prevent that bolt rod 8 from rotating in pin bushing 9, location briquetting 3 is rotated, cause double wedge 5 to depart from the reference position; And make the indexing means can't operate as normal; Can process limit sliding chutes 10 on the pin bushing 9, install on the bolt rod 8 and be stuck in the chute 10 key 11 that can slide along chute, through the restriction of chute 10 and key 11; Can prevent relatively rotating of bolt rod 8 and pin bushing 9 effectively, thereby guarantee the operate as normal of indexing means.
The driving mechanism of said location briquetting also can be the motor that is installed in the main spindle box side, the gear that is connected on the motor shaft, and gear is meshed with the tooth bar of bolt rod one end, and bolt rod inserts in the pin bushing, and its other end connects firmly with the location briquetting.Through forward and reverse rotary electric machine driven gear through on tooth bar, rolling, can make latch along main shaft diameter to reciprocating motion.
The profile of tooth angle of index dial 1 and double wedge 5 directly influences cooperation and the location between them, and during the angle too small of profile of tooth, rigidity is not enough, and profile angle is spent when big, and contact area is less again.Show that through calculating and experiment the profile of tooth angle is spent to 75 degree effects better with 45, wherein best with 60 degree.
Claims (2)
1. machine tool chief axis dividing apparatus, index dial (1) is the external gear shape, is installed on the main shaft (2); Location briquetting (3) is installed on the main spindle box (4), and itself and index dial opposite side have double wedge (5), and double wedge is positioned at the reference position that main shaft rotates; The profile of tooth of its profile of tooth and index dial matches, the location briquetting by drive mechanism, can by drive mechanism its along main shaft diameter to reciprocating motion; It is characterized in that: the driving mechanism of said location briquetting (3) is the motor that is installed in the main spindle box side, the gear that is connected on the motor shaft, and gear is meshed with the tooth bar of bolt rod one end; Bolt rod inserts in the pin bushing, and its other end connects firmly with the location briquetting.
2. machine tool chief axis dividing apparatus according to claim 1 is characterized in that: process limit sliding chutes (10) on the pin bushing, have on the bolt rod to be stuck in the chute key (11) that can slide along chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100282498A CN101279430B (en) | 2008-05-23 | 2008-05-23 | Machine tool chief axis dividing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100282498A CN101279430B (en) | 2008-05-23 | 2008-05-23 | Machine tool chief axis dividing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101279430A CN101279430A (en) | 2008-10-08 |
| CN101279430B true CN101279430B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100282498A Active CN101279430B (en) | 2008-05-23 | 2008-05-23 | Machine tool chief axis dividing apparatus |
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| CN (1) | CN101279430B (en) |
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| CN102653070A (en) * | 2011-03-02 | 2012-09-05 | 无锡中亚工具厂 | Indexing ratchet wheel |
| CN102601706B (en) * | 2012-03-12 | 2013-05-01 | 江阴东辰机械制造股份有限公司 | Sharpening machine for sharpening angle through automatic rotation |
| CN103084836B (en) * | 2013-01-31 | 2016-05-04 | 广州海鸥卫浴用品股份有限公司 | A kind of assemble mechanism of central heating valve accessory |
| CN103111912B (en) * | 2013-02-28 | 2014-12-31 | 苏州凯蒂亚半导体制造设备有限公司 | Novel index plate |
| CN103707135B (en) * | 2013-12-25 | 2016-02-17 | 台州学院 | The device of a kind of clamping and positioning and calibration integration |
| CN103758894B (en) * | 2013-12-31 | 2016-03-02 | 亨利安（青岛）自动化技术有限公司 | Mechanical stop limiter |
| CN103760818B (en) * | 2014-02-11 | 2016-04-13 | 苏州新代数控设备有限公司 | For the opertaing device of index plate location |
| CN104759986A (en) * | 2015-03-10 | 2015-07-08 | 山西太钢不锈钢股份有限公司 | Grinding head speed sensor installation tool and speed sensor installation method |
| CN104785812A (en) * | 2015-05-14 | 2015-07-22 | 邢永安 | Multi-station automatic drill machine |
| CN105171523B (en) * | 2015-10-10 | 2017-08-25 | 贵州黎阳航空动力有限公司 | A kind of bolt-type indexing means |
| CN106647619B (en) * | 2016-11-28 | 2020-07-07 | 金舜 | Method for quickly setting position of main shaft of servo driver |
| CN107322400A (en) * | 2017-08-30 | 2017-11-07 | 张家港华翊电工有限公司 | A kind of sander of metallic article processing |
| CN107971775B (en) * | 2017-10-20 | 2020-05-12 | 芜湖市鸿坤汽车零部件有限公司 | Automobile parts clamping device |
| CN108311950A (en) * | 2018-04-09 | 2018-07-24 | 南京工程学院 | It is a kind of to index to determining device |
| CN109917156B (en) * | 2019-04-01 | 2020-07-10 | 西南交通大学 | Rotary sample stage device based on atomic force microscope |
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2008
- 2008-05-23 CN CN2008100282498A patent/CN101279430B/en active Active
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| CN101279430A (en) | 2008-10-08 |
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