CN204976192U - Index head - Google Patents
Index head Download PDFInfo
- Publication number
- CN204976192U CN204976192U CN201520563813.1U CN201520563813U CN204976192U CN 204976192 U CN204976192 U CN 204976192U CN 201520563813 U CN201520563813 U CN 201520563813U CN 204976192 U CN204976192 U CN 204976192U
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- China
- Prior art keywords
- tailstock
- rotational sleeve
- index dial
- rotating sleeve
- graduation
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Abstract
The utility model provides an index head, includes rotating sleeve, graduated disk, twist grip, elastically positioned round pin, nut and tailstock. Wherein: the flange mounting of rotating sleeve through self one end is on the three -jaw chuck of lathe. Tailstock, graduated disk and nut suit in proper order and make on rotating sleeve a terminal surface of tailstock is laminated with the interior terminal surface of rotating sleeve flange, will through the bolt the tailstock is set up with rotating sleeve. The during operation rotates the twist grip and makes rotating sleeve rotate, and the graduated disk that fixed on rotating sleeve through the locating pin this moment is rotatory thereupon, carries out the graduation with the meshing of elastically positioned round pin in the angle of needs, the rotational locking handle is locked and is died behind the graduation, has accomplished the working process of graduation, locking promptly, the graduation fast simply, greatly reduced a ray of operating personnel's intensity of labour, reduced the error rate among the actual operation simultaneously. The index head of graduation is carried out for ratchet pawl structure, the utility model discloses a structure is simpler, and it is more accurate to fix a position, and the precision is higher.
Description
Technical field
The present invention relates to machine industry, is the calibration locking dividing head of the part processing being a kind ofly applicable to collar plate shape, having equation graduation and the requirement of common special angle calibration.
Background technology
In mechanical processing industry, often can run into the Milling Machining of collar plate shape class part, need to use dividing head.Current is traditional universal dividing head at the dividing head that machinery industry is the most general, does not temporarily also have the general dividing head that can carry out simple and easy accurate calibration.
Traditional universal dividing head is primarily of compositions such as main shaft, revolving body, index dial, handle, bases, main shaft is installed top or scroll chuck etc., revolving body can rotate certain angle around the cannelure of base, the locating hole circle of the uniform different hole count in two sides of its index dial, can carry out the calibration of various angle requirement.Wherein, the handle of dividing head is connected with single start worm, main shaft is equipped with the worm gear of n tooth, composition worm-and-wheel gear, and gearratio is 1:n, is namely that main axis 1/n encloses when handle rotates a circle.When therefore carrying out calibration in the process of part processing, if workpiece circumferentially will be divided into m decile, each then on workpiece is divided into 1/m circle, workpiece is connected with main shaft by top or scroll chuck, when workpiece rotates 1/m circle, main shaft also will rotate 1/m circle, and so needs are rotated n/m circle by handle.For batch production, use traditional universal dividing head to carry out calibration, workman needs the position, hole of hand some, in workpiece process only calibration, lock this link, the labour intensity of workman is very large.
The dividing head of general simple and easy accurate calibration is not temporarily had in current machinery industry, the human hairs such as the Shi Jianling of Hebei University of Science and Technology understand a kind of dividing head of quick index positioning and locking, are made up of parts such as ratchet, top pawl, main shaft, elastic positioning pin, clapboard, crank, backing pin, index dial, set lever, screw, alignment pins.During calibration, pull crank to the backing pin position of specifying, after elastic positioning pin is lifted by clapboard, by ratchet and pawl arrangement, after original position return by crank, elastic positioning pin realizes location, then pulls set lever and lock, and structure is comparatively complicated; Because its calibration location structure adopts click, have larger impact and noise, and positioning precision is poor, the occasion that speed is not high, load little, required precision is not high can only be used for.
Summary of the invention
For overcome exist in prior art complex structure, positioning precision difference deficiency, the present invention proposes a kind of dividing head.
The present invention includes rotational sleeve, index dial, rotary handle, elastic positioning pin, nut and tailstock.Wherein: rotational sleeve is arranged on the scroll chuck of lathe by the flange of self one end.Tailstock, index dial and nut are sleeved on rotational sleeve successively, and an end face of described tailstock and the inner face of rotational sleeve flange are fitted; By bolt, described tailstock and rotational sleeve are tightened up.
Described index dial is circular, and its internal diameter is identical with the external diameter of rotational sleeve.The locating slot of an elastic positioning pin is had at the internal circular surfaces of described index dial.Six scale grooves are evenly equipped with in the panel surface of described index dial.Described locating slot is positioned in the middle of two scale grooves, and the angle between the center line in the center line of locating slot width and two scale well width directions is 30 °.The installing hole of alignment pin is had at the inner surface of described index dial.
Described tailstock comprises base and barrel of tail stock.The internal diameter of described barrel of tail stock is identical with the external diameter of rotational sleeve.At the flexible alignment pin jack of the end face of this tailstock other end, the center line of this jack is parallel with the axis of this tailstock.
The end face of flange outer rim that described rotational sleeve coordinates with scroll chuck end face is processed with the concave surface of annular, and this concave surface is coordinated with the boss of scroll chuck outer rim, thus realizes the radial location to this rotational sleeve.
In the present invention, scroll chuck is assemblied in the large end of rotational sleeve, three rotary handles are uniform is assemblied in the large end of rotational sleeve circumferentially, the small end of rotational sleeve and tailstock assemble, index dial and round nut are sleeved on the small end of rotational sleeve, elastic positioning pin is assemblied in tailstock engages with index dial and carries out calibration, and alignment pin is assemblied in rotational sleeve small end and coordinates with index dial and be fixed index dial, and set lever is connected on tailstock.
Index dial is the demand used according to reality, carries out the slotted disk of special angle calibration with circumference 360 °.The worm-and-wheel gear that the present invention also adopts the mechanism form of similar click to replace in general universal dividing head, inserts with the elastic positioning pin being equivalent to ratchet and is equivalent in the index dial indexing grooves of ratchet.The alignment pin that rotational sleeve assembles coordinates with index dial and replaces the effect of key in order to transmitting torque, ensures the precision of positioning and locking.A thrust can be applied on rotational sleeve after set lever is connected to and tailstock screws, thus carry out locked to rotational sleeve and index dial.Operation principle is after parts fixation to be processed is on scroll chuck, rotating rotary handle makes rotational sleeve rotate, the index dial be now fixed on rotational sleeve by alignment pin is rotated thereupon, the angle needed engages with elastic positioning pin and carries out calibration, after calibration, rotational lock handle carries out locked, namely completes the course of work of calibration, locking.
The present invention is applicable to collar plate shape, have the processing of the part of equation graduation requirement, for the calibration with halving hole, groove, many seamed edges class part, without the need to swinging handle frequently, can conveniently realize accurate calibration.Calibration is convenient, easy to operate, and reliably, locking safety, calibration is not easily made mistakes for calibration, accurate positioning.Meanwhile, chuck is installed, and the size of sub-degree angle according to production and processing Demand Design index dial, and all can be able to use at level, vertical direction, greatly boosts productivity and the quality of institute's converted products.
The present invention can realize accurate calibration and locking, and accurately locate by the structure of the groove on index dial and elastic positioning pin engagement and lock, structure is simple.Groove and elastic positioning pin engagement, location is accurately convenient, groove on index dial carries out designing processing according to the demand of user oneself, relatively traditional universal dividing head, calibration is simple fast, greatly reduce the labour intensity of line operating personnel, reduce the error rate in practical operation simultaneously.Carry out the dividing head of calibration relative to click structure, structure of the present invention is more simple, and location is more accurate, and precision is higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing at B position in Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the partial sectional view at A-A position in Fig. 1;
Fig. 5 is the structural representation of index dial, and wherein: 5a is front view, 5b is side view;
Fig. 6 is the schematic diagram of indexing trough and elastic positioning pin engagement;
Fig. 7 is the structural representation of tailstock, and wherein: 7a is front view, 7b is side view, and 7c is top view.
Wherein: 1. scroll chuck; 2. rotational sleeve; 3. rotary handle; 4. elastic positioning pin; 5. index dial; 6. nut; 7. tailstock; 8. set lever; 9. alignment pin; 10. locating slot; 11. scale grooves; 12. bases; 13. barrel of tail stocks; 14. elastic positioning pin jacks.
Detailed description of the invention
The present embodiment is a kind of dividing head of six deciles, comprises rotational sleeve 2, index dial 5, rotary handle 3, elastic positioning pin 4, nut 6 and tailstock 7.Wherein: rotational sleeve 2 is arranged on the scroll chuck 1 of lathe by the flange of self one end.Tailstock 7, index dial 5 and nut are sleeved on rotational sleeve successively, and an end face of described tailstock 7 and the inner face of rotational sleeve flange are fitted; By bolt, described tailstock 7 is tightened up with rotational sleeve 2.
Described index dial 5 is circular, and its internal diameter is identical with the external diameter of rotational sleeve 2.The locating slot 10 of an elastic positioning pin is had at the internal circular surfaces of described index dial.Six scale grooves 11 are evenly equipped with in the panel surface of described index dial.Described locating slot 10 is positioned in the middle of two scale grooves 11, and the angle between the center line of the center line of locating slot 10 width and two scale groove 11 widths is 30 °.The installing hole of alignment pin 9 is had at the inner surface of described index dial 5.
Described tailstock 7 comprises base 12 and barrel of tail stock 13.The internal diameter of described barrel of tail stock is identical with the external diameter of rotational sleeve 2.Have screw at the external peripheral surface of this tailstock 7 one end, the central axis of this screw is in the axis of this tailstock; At the flexible alignment pin jack 14 of the end face of this tailstock other end, the center line of this jack is parallel with the axis of this tailstock.
There is the flange coordinated with scroll chuck 1 end face one end of described rotational sleeve 2, and the outer rim of this flange is processed with the concave surface of annular, and this concave surface is coordinated with the boss of scroll chuck outer rim, thus realizes the radial location to this rotational sleeve.Described rotational sleeve coordinates with dynamic between scroll chuck.The installing hole of rotary handle 3 is had at the circumferential surface of the flange of described rotational sleeve 2.The external diameter of described rotational sleeve 2 is identical with the internal diameter of barrel of tail stock, and makes to move cooperation between the two.
Described rotary handle 3 has three, is cylindric quarter butt.Described rotary handle is uniform and be fixed on the external peripheral surface of rotational sleeve 2.
During use, by the external peripheral surface of described rotary handle 3 elastic conjunction at rotational sleeve 2 flange.Tailstock 7 is sleeved on the external peripheral surface of rotational sleeve 2, and passes through bolt tightening.Elastic positioning pin 4 is arranged in the elastic positioning pin jack of the end face of tailstock 7.Index dial 5 and nut 6 are all sleeved on the external peripheral surface of rotational sleeve 2 small end, and make described nut 6 be positioned at the outside of index dial 5, to realize the axial location to index dial 5.By alignment pin 9, index dial 5 and tailstock 7 are connected.
During calibration, pull rotary handle 3 to specifying index dial indexing grooves position, elastic positioning pin 4 ejects under the action of the spring, inserts engagement in the indexing grooves of six equation graduation dishes 5 and carries out accurate calibration location.
During locking, a rotation lock handle 8 and then thrust is applied to rotational sleeve 2, thus locked the six equation graduation dishes 5 be fixed together with rotational sleeve 2, realize safe locking effect.
The present embodiment can conveniently realize accurate calibration without the need to swinging handle frequently, and calibration is convenient, accurate positioning is reliable, locking safety, and effectively raise operating efficiency, reduce the labour intensity in workman's process operation process, error rate also significantly reduces.
In the present embodiment, scroll chuck external diameter is Φ 160mm, the large end external diameter of rotational sleeve is Φ 160mm, small end external diameter Φ 76mm, internal diameter Φ 48mm, rotary handle has three uniform large ends being assemblied in rotational sleeve, alignment pin is assemblied in the small end of rotational sleeve with interference fit, and base center height is 106mm, and index dial internal diameter is Φ 76mm, external diameter is Φ 101mm, and round nut is M65 × 2.
Prove through actual 20 bolts processing checking, often process an outer-hexagonal bolt, traditional universal dividing head processing below M12 needs 1 minute, more than the bolt of M12 needs 2 minutes.The working (machining) efficiency single-piece of the present embodiment improves nearly 1 times than traditional calibration locking more than M12 bolt, and below M12 working (machining) efficiency improves 20%, will more effective raising working (machining) efficiency after batch machining; Reduce labour intensity and the mismachining tolerance rate of workman.Below comparative result:
Claims (4)
1. a dividing head, is characterized in that, comprises rotational sleeve, index dial, rotary handle, elastic positioning pin, nut and tailstock; Wherein: rotational sleeve is arranged on the scroll chuck of lathe by the flange of self one end; Tailstock, index dial and nut are sleeved on rotational sleeve successively, and an end face of described tailstock and the inner face of rotational sleeve flange are fitted; By bolt, described tailstock and rotational sleeve are tightened up.
2. dividing head as claimed in claim 1, it is characterized in that, described index dial is circular, and its internal diameter is identical with the external diameter of rotational sleeve; The locating slot of an elastic positioning pin is had at the internal circular surfaces of described index dial; Six scale grooves are evenly equipped with in the panel surface of described index dial; Described locating slot is positioned in the middle of two scale grooves, and the angle between the center line in the center line of locating slot width and two scale well width directions is 30 °; The installing hole of alignment pin is had at the inner surface of described index dial.
3. dividing head as claimed in claim 1, it is characterized in that, described tailstock comprises base and barrel of tail stock; The internal diameter of described barrel of tail stock is identical with the external diameter of rotational sleeve; At the flexible alignment pin jack of the end face of this tailstock other end, the center line of this jack is parallel with the axis of this tailstock.
4. dividing head as claimed in claim 3, it is characterized in that, the end face of flange outer rim that described rotational sleeve coordinates with scroll chuck end face is processed with the concave surface of annular, and this concave surface is coordinated with the boss of scroll chuck outer rim, thus realizes the radial location to this rotational sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563813.1U CN204976192U (en) | 2015-07-30 | 2015-07-30 | Index head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563813.1U CN204976192U (en) | 2015-07-30 | 2015-07-30 | Index head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204976192U true CN204976192U (en) | 2016-01-20 |
Family
ID=55110610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520563813.1U Expired - Fee Related CN204976192U (en) | 2015-07-30 | 2015-07-30 | Index head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204976192U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639360A (en) * | 2017-09-13 | 2018-01-30 | 敏实汽车技术研发有限公司 | A kind of robot welding is accurately positioned automatic clamping mechanism |
| CN107774863A (en) * | 2017-09-22 | 2018-03-09 | 温州市翔潮汽车零部件有限公司 | Rivet automatic producing device and its Dun Da mechanisms |
| CN108274034A (en) * | 2018-03-21 | 2018-07-13 | 桂林福达齿轮有限公司 | A kind of car bridge driving gear brill cross hole tool |
-
2015
- 2015-07-30 CN CN201520563813.1U patent/CN204976192U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639360A (en) * | 2017-09-13 | 2018-01-30 | 敏实汽车技术研发有限公司 | A kind of robot welding is accurately positioned automatic clamping mechanism |
| CN107774863A (en) * | 2017-09-22 | 2018-03-09 | 温州市翔潮汽车零部件有限公司 | Rivet automatic producing device and its Dun Da mechanisms |
| CN107774863B (en) * | 2017-09-22 | 2019-05-21 | 温州市翔潮汽车零部件有限公司 | Rivet automatic producing device and its Dun Da mechanism |
| CN108274034A (en) * | 2018-03-21 | 2018-07-13 | 桂林福达齿轮有限公司 | A kind of car bridge driving gear brill cross hole tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20200730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |