CN105033754A - Cam roller type numerical control indexing head - Google Patents
Cam roller type numerical control indexing head Download PDFInfo
- Publication number
- CN105033754A CN105033754A CN201510517113.3A CN201510517113A CN105033754A CN 105033754 A CN105033754 A CN 105033754A CN 201510517113 A CN201510517113 A CN 201510517113A CN 105033754 A CN105033754 A CN 105033754A
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- CN
- China
- Prior art keywords
- power transmission
- transmission shaft
- head
- cam
- index dial
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
- B23Q16/022—Indexing equipment in which only the indexing movement is of importance
- B23Q16/025—Indexing equipment in which only the indexing movement is of importance by converting a continuous movement into a rotary indexing movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a cam roller type numerical control indexing head. The cam roller type numerical control indexing head mainly comprises an indexing plate and globoidal cams positioned on transmission shafts. Multiple needle bearings are circumferentially and evenly distributed on the periphery of the indexing plate. The needle bearings can be sequentially engaged with the globoidal cams. The number of the transmission shafts with the globoidal cams is at least two. The transmission shafts are arranged around the indexing plate. The transmission shafts are sequentially connected end to end for transmission or synchronously driven by respective drive motors. The globoidal cams on the transmission shafts are in zero-clearance engaging transmission with the needle bearings on the corresponding side of the indexing plate. According to the design, the transmission rigidity of the indexing head can be improved in a multiplied manner; the cam roller type numerical control indexing head has the characteristics of being simple in structure and high in machining accuracy; and the machining range of the cam roller type numerical control indexing head can be greatly widened.
Description
Technical field
The present invention relates to a kind of NC dividing head, be specially a kind of cam bawl formula NC dividing head.
Background technology
NC dividing head is one of main accessories of the lathe such as CNC milling machine, machining center, also can be used as the main accessories of semi-automatic miller, boring machine and other class lathe.NC dividing head is that the lathe such as Digit Control Machine Tool, machining center provides revolution coordinate, decile, not decile or continuous print revolution processing can be completed, be applicable to various milling, drilling processing, complex-curved processing, automatically can complete the clamping to work piece, unclamp and circumference graduation work at any angle, can greatly raise labour productivity and the crudy of workpiece.
Traditional NC dividing head is Worm-gear type structure, power transmission is realized by the wrom tooth engaged transmission of worm and worm wheel, both have good rigid nature and machining accuracy at transmission, but simultaneously because both transmission fields of conjugate action are face contact, and transmit power by the sliding friction of the field of conjugate action, make both transmission efficiencies lower, high speed and high-precision calibration processing needs cannot be met.
For this reason, there is a kind of cam bawl formula NC dividing head in recent years, form with the globoid cam on power transmission shaft primarily of index dial and installation, index dial periphery is wherein provided with multiple needle bearing with even circumferential distribution mode, and each needle bearing can sequentially engage with the globoid cam on power transmission shaft and realize transmission.At this, the kind of drive between above needle bearing and globoid cam is rolling transmission, frictional force is very little, well can realize calibration processing needs at a high speed, but simultaneously because the contact surface of engaged transmission between needle bearing and globoid cam is linear contact lay, cause rigidity during both transmissions poor, the needs of Large-torsion transmisson processing cannot be applicable to, greatly limit the range of work of cam bawl formula NC dividing head.
Summary of the invention
For the problems referred to above, the present invention devises a kind of cam bawl formula NC dividing head, it even many times can promote the transmission stiffness of dividing heads at double, has the advantages that structure is simple, machining accuracy is high, greatly can expand the range of work of cam bawl formula NC dividing head.
For achieving the above object, the present invention is by the following technical solutions:
A kind of cam bawl formula NC dividing head, mainly include index dial and be positioned the globoid cam on power transmission shaft, the periphery of index dial is provided with multiple needle bearing with even circumferential distribution mode, each needle bearing can sequentially engage with globoid cam, it is characterized in that: the power transmission shaft of described band globoid cam is at least set to two, each power transmission shaft is arranged around index dial, each power transmission shaft head and the tail sequentially connection for transmission or synchronously driven by respective drive motors, the globoid cam on each power transmission shaft all with the needle bearing tight mesh transmission in index dial respective side.
Further, the head and the tail of above-mentioned power transmission shaft sequentially connection for transmission by bevel gear pair engaged transmission.
Further, above-mentioned drive motors is synchronous stepper motor or synchronous servo motor.
The present invention is provided with the power transmission shaft of at least two band globoid cams, and head and the tail sequentially connection for transmission or synchronously driven by respective drive motors, the globoid cam on every root power transmission shaft is connected with a joggle with the needle bearing in index dial respective side respectively.This vibrational power flow maintains the Synchronous Transmission on each power transmission shaft between globoid cam and index dial, and the increase of number is set along with power transmission shaft, the transmission rigidity between power transmission shaft and index dial is made to promote one times, twice even many times, effectively can promote the stability of both transmissions, keep the action machining accuracy of index dial.
Accompanying drawing explanation
Fig. 1, perspective view of the present invention;
Fig. 2, the second embodiment of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of cam bawl formula NC dividing head, the globoid cam 21 mainly including index dial 1 and be positioned on power transmission shaft 2, the periphery of index dial 1 is provided with multiple needle bearing 11 with even circumferential distribution mode, and each needle bearing 11 can sequentially engage with the globoid cam 21 on power transmission shaft 2.
At this, the power transmission shaft 2 with globoid cam 21 in the present invention is at least set to two, and in this enforcement legend, power transmission shaft 2 is set to four, can need to be set as two, three or more roots in practice according to practical stiffness.Each power transmission shaft 2 head and the tail sequentially connection for transmission or synchronously driven by respective drive motors above, adopt from beginning to end the structure of sequentially connection for transmission in the present embodiment, in practice can be as shown in Figure 2, namely each power transmission shaft 2 is synchronously driven by respective drive motors 4, and this drive motors 4 is synchronous stepper motor or synchronous servo motor.Globoid cam 21 on each power transmission shaft 2 all with the needle bearing 11 tight mesh transmission in index dial 1 respective side.
At this, for the synchronous uniformity of transmission between each power transmission shaft 2 can be ensured, the head and the tail of described adjacent drive axle 2 are by twist belt drive anatomical connectivity, bevel gear pair 3 engaged transmission is adopted in the present embodiment, replace by other similar structures in practice, only need the Synchronous Transmission that can realize between each power transmission shaft 2.
The vibrational power flow of index dial 1 periphery at least two power transmission shafts 2 in above structure, it not only maintains the Synchronous Transmission between globoid cam 21 on each power transmission shaft 2 and index dial 1, and the increase of number is set along with power transmission shaft 2, power transmission shaft 2 is effectively promoted with the contact surface that engages of needle bearing 11 on index dial 1, and then makes the transmission rigidity between each power transmission shaft 2 and index dial 1 promote one times, twice even many times.
To sum up, the present invention effectively improves rigidity and the stability of transmission while ensureing the action of index dial 1 high speed indexing, for promoting and ensureing that the action machining accuracy of index dial 1 has very practical effect, be applicable to the needs of Large-torsion transmisson processing, and effectively expand the range of work of cam bawl formula NC dividing head.
The above, it is only better embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to know-why of the present invention to any simple modification made for any of the above embodiments, equivalent variations or modification, still belong in the scope of technical solution of the present invention.
Claims (3)
1. a cam bawl formula NC dividing head, mainly include index dial and be positioned the globoid cam on power transmission shaft, the periphery of index dial is provided with multiple needle bearing with even circumferential distribution mode, each needle bearing can sequentially engage with globoid cam, it is characterized in that: the power transmission shaft of described band globoid cam is at least set to two, each power transmission shaft is arranged around index dial, each power transmission shaft head and the tail sequentially connection for transmission or synchronously driven by respective drive motors, globoid cam on each power transmission shaft all with the needle bearing tight mesh transmission in index dial respective side.
2. a kind of cam bawl formula NC dividing head as claimed in claim 1, is characterized in that: the head and the tail of described power transmission shaft sequentially connection for transmission by bevel gear pair engaged transmission.
3. a kind of cam bawl formula NC dividing head as claimed in claim 1, is characterized in that: described drive motors is synchronous stepper motor or synchronous servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510517113.3A CN105033754A (en) | 2015-08-21 | 2015-08-21 | Cam roller type numerical control indexing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510517113.3A CN105033754A (en) | 2015-08-21 | 2015-08-21 | Cam roller type numerical control indexing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105033754A true CN105033754A (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510517113.3A Pending CN105033754A (en) | 2015-08-21 | 2015-08-21 | Cam roller type numerical control indexing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105033754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722388A (en) * | 2018-07-17 | 2020-01-24 | 福建鑫鋐笙精密机械有限公司 | Double-driving structure of roller cam single output shaft |
| CN110722389A (en) * | 2018-07-17 | 2020-01-24 | 福建鑫鋐笙精密机械有限公司 | Double-driving structure of roller cam single output shaft |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07148645A (en) * | 1994-05-30 | 1995-06-13 | Sankyo Seisakusho:Kk | Intermittent indexing device and cutter indexing unit for machine tool |
| CN2549259Y (en) * | 2002-05-24 | 2003-05-07 | 陕西科技大学机电工程学院 | Vertical and horizontal two way swivel device with spherical conic rollers and arch cam |
| CN101244521A (en) * | 2008-02-05 | 2008-08-20 | 浙江西菱台钻制造有限公司 | Indexing mechanism of turntable in turret knife tower |
| DE102007021681B3 (en) * | 2007-05-09 | 2008-09-11 | Tünkers Maschinenbau Gmbh | Step switching turntable has cam rollers driven by servomotors with angle sensors, frequency inverters, control or regulation device with freely programmable synchronous cam roller control or regulation in latching path via transmissions |
| CN201339681Y (en) * | 2009-01-11 | 2009-11-04 | 山东省德州市金宇机械有限公司 | Gapless gear worm speed reducer |
| CN201376206Y (en) * | 2009-01-19 | 2010-01-06 | 温岭市华驰机械有限公司 | High-precision dividing device |
| CN204818963U (en) * | 2015-08-21 | 2015-12-02 | 台州市凹凸传动部件有限公司 | Cam bawl formula numerically -controlled dividing head |
-
2015
- 2015-08-21 CN CN201510517113.3A patent/CN105033754A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07148645A (en) * | 1994-05-30 | 1995-06-13 | Sankyo Seisakusho:Kk | Intermittent indexing device and cutter indexing unit for machine tool |
| CN2549259Y (en) * | 2002-05-24 | 2003-05-07 | 陕西科技大学机电工程学院 | Vertical and horizontal two way swivel device with spherical conic rollers and arch cam |
| DE102007021681B3 (en) * | 2007-05-09 | 2008-09-11 | Tünkers Maschinenbau Gmbh | Step switching turntable has cam rollers driven by servomotors with angle sensors, frequency inverters, control or regulation device with freely programmable synchronous cam roller control or regulation in latching path via transmissions |
| CN101244521A (en) * | 2008-02-05 | 2008-08-20 | 浙江西菱台钻制造有限公司 | Indexing mechanism of turntable in turret knife tower |
| CN201339681Y (en) * | 2009-01-11 | 2009-11-04 | 山东省德州市金宇机械有限公司 | Gapless gear worm speed reducer |
| CN201376206Y (en) * | 2009-01-19 | 2010-01-06 | 温岭市华驰机械有限公司 | High-precision dividing device |
| CN204818963U (en) * | 2015-08-21 | 2015-12-02 | 台州市凹凸传动部件有限公司 | Cam bawl formula numerically -controlled dividing head |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722388A (en) * | 2018-07-17 | 2020-01-24 | 福建鑫鋐笙精密机械有限公司 | Double-driving structure of roller cam single output shaft |
| CN110722389A (en) * | 2018-07-17 | 2020-01-24 | 福建鑫鋐笙精密机械有限公司 | Double-driving structure of roller cam single output shaft |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20151111 |