CN114932453A - Precise indexing mechanism for main shaft of numerical control heavy horizontal machine tool - Google Patents
Precise indexing mechanism for main shaft of numerical control heavy horizontal machine tool Download PDFInfo
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- CN114932453A CN114932453A CN202210783989.2A CN202210783989A CN114932453A CN 114932453 A CN114932453 A CN 114932453A CN 202210783989 A CN202210783989 A CN 202210783989A CN 114932453 A CN114932453 A CN 114932453A
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- gear
- main shaft
- numerical control
- indexing mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 11
- 244000309464 bull Species 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 6
- 238000003801 milling Methods 0.000 abstract 1
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000006637 fused teeth Diseases 0.000 description 1
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a precise indexing mechanism for a numerical control heavy horizontal machine tool spindle. The problem that when an existing floor type milling and boring machine is used for machining parts with a plurality of holes or surfaces with the same angle requirement, a plurality of tools need to be prepared, and therefore auxiliary time is increased is mainly solved. One side between slide (2) and supporting seat (3) links to each other through horizontally rotation axis (9), and the opposite side links to each other through upset lead screw (5), upset lead screw (5) link to each other with speed reducer (11). The precise indexing mechanism of the main shaft of the numerical control heavy horizontal machine tool can be inclined at a certain angle, so that a surface or a hole with an angle requirement on a part is converted into a horizontal direction or a vertical direction, the machining precision can be effectively guaranteed, and the auxiliary time for replacing a tool is saved.
Description
Technical Field
The invention relates to the field of machine tools, in particular to a numerical control heavy horizontal machine tool spindle precision indexing mechanism.
Background
With the updating and development of science and technology, the requirement on the indexing of the main shaft of the numerical control heavy horizontal machine tool is higher and higher. The existing indexing mechanism mostly adopts a four-stage gear box with a double-tooth-bar anti-backlash gear meshed with a large gear ring, has a complex structure, is difficult to install and adjust, has low indexing precision, can only achieve classification, and cannot meet more precise indexing requirements.
Disclosure of Invention
In order to overcome the defects of complex structure and low indexing precision of the existing numerical control heavy horizontal machine tool spindle indexing mechanism, the invention provides the numerical control heavy horizontal machine tool spindle precision indexing mechanism which adopts a double servo motor to be meshed with a large gear ring through an electric clearance elimination master-slave gear structure, and has simple structure and high indexing precision.
The technical scheme of the invention is as follows: the numerical control heavy horizontal machine tool spindle precise indexing mechanism comprises a large gear ring, wherein two clearance eliminating mechanisms are connected to the large gear ring, each clearance eliminating mechanism comprises an alternating current servo motor, the alternating current servo motors are connected with a sliding gear through planetary reducers, the sliding gear is connected with a reduction gear D, the reduction gear D is coaxial with the clearance eliminating gears, and the clearance eliminating gears are meshed with the large gear ring.
The hydraulic control shifting oil cylinder is connected with the two sliding shifting gears through a shifting fork.
During indexing, the hydraulic control shifting oil cylinder controls the slipping shifting gear to be meshed with the speed reduction gear D; when in processing, the hydraulic control disengaging and replacing oil cylinder controls the slipping disengaging and replacing gear to disengage from the speed reducing gear D.
The main motor is connected with a main transmission second-gear speed change gear through a plurality of speed reduction gears, the main transmission second-gear speed change gear and the speed reduction gear E are both fixed on the shaft III, and the speed reduction gear E is meshed with the large gear ring.
The large gear ring is fixed on the main shaft, one end of the main shaft is connected with the disc chuck, and the end part of the other end of the main shaft is fixed with the circular grating.
The invention has the following beneficial effects: by adopting the scheme, the double-servo motor and the master-slave backlash elimination meshing indexing are adopted, the transmission chain is short, the indexing error is small, when workpieces needing accurate indexing, such as key grooves with any axial angle and the like, are machined, the main shaft can automatically and accurately rotate by the required angle, the positioning precision can reach +/-0.0015 degrees, the machining efficiency is improved, the precision level is improved, the safety and the reliability are reliably guaranteed, and the purposes of simplicity in operation, safety and reliability are achieved.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a view in the direction of P in fig. 1.
In the figure, 1-an alternating current servo motor, 2-a planetary reducer, 3-a circular grating, 4-a reduction gear A, 5-a reduction gear B, 6-a reduction gear C, 7-a main motor, 8-a hydraulic control shifting cylinder, 9-a slippage shifting gear, 10-a reduction gear D, 11-an anti-backlash gear, 12-a large gear ring, 13-a jaw, 14-a faceplate, 15-a main transmission second-gear speed change gear, 16-a tip, 17-a reduction gear E, 18-a main shaft and 19-a main shaft box base.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in figures 1 and 2, the numerical control heavy horizontal machine tool spindle precise indexing mechanism comprises a large gear ring 12, wherein the large gear ring 12 is fixed on a spindle 18, one end of the spindle 18 is connected with a faceplate 14, a jaw 13 and a tip 16 are arranged on the faceplate 14, a circular grating 3 is fixed at the end part of the other end of the spindle 18, a command receiver and a signal transmitter are arranged in the circular grating 3, the command receiver is used for recording the rotation angle grid of the spindle and is connected with a main control device, and the signal transmitter is used for being connected with an alternating current servo motor control device.
The large gear ring 12 is connected with two sets of anti-backlash mechanisms which are identical in structure and respectively comprise an alternating current servo motor 1, the alternating current servo motor 1 is connected with a slip replacing gear 9 through a planetary reducer 2, the slip replacing gear 9 is connected with a reduction gear D10, the reduction gear D10 is coaxial with an anti-backlash gear 11, and the anti-backlash gear 11 is meshed with the large gear ring 12. The indexing mechanism also comprises a hydraulic control replacing oil cylinder 8, and the hydraulic control replacing oil cylinder 8 controls two sliding replacing gears 9 through a shifting fork. The hydraulic control gear-disengaging oil cylinder 8 can control the slipping gear-disengaging gear 9 to be connected with or disconnected from the speed reduction gear B10, and when indexing is performed, the slipping gear-disengaging gear 9 is meshed with the speed reduction gear D10; during machining, the slip escape gear 9 is disengaged from the reduction gear D10.
The indexing mechanism further comprises a main motor 7, an output shaft of the main motor 7 is connected with a speed reduction gear C6, a speed reduction gear C6 is meshed with a speed reduction gear B5, a speed reduction gear B5 is coaxial with a belt reduction gear A4, the belt reduction gear A4 is connected with a main transmission second-gear speed change gear 15, the main transmission second-gear speed change gear 15 and a speed reduction gear E17 are fixed on a shaft III together, and the speed reduction gear E17 is meshed with the large gear ring 12.
During indexing, the hydraulic control shifting oil cylinder 8 controls the sliding shifting gear 9 to be meshed with the speed reduction gear D10, the alternating current servo motor 1 is started, the anti-backlash gear 11 is driven to rotate through the sliding shifting gear 9 and the speed reduction gear D10 in sequence, the anti-backlash gear 11 drives the large gear ring 12 to rotate, and the circular grating 3 is combined, so that when workpieces needing accurate indexing, such as key grooves with any axial angle, are machined, the main shaft can rotate by the required angle automatically and accurately. Because the double-servo motor and the master-slave backlash elimination meshing indexing are adopted, the transmission chain is short, and the indexing error is small, the indexing precision is high, and the positioning precision can reach +/-0.0015 degrees.
During machining, the hydraulic control gear-disengaging cylinder 8 controls the slipping gear-disengaging gear 9 to disengage from the speed-reducing gear D10, the main motor 7 is started, the main transmission second-gear speed-changing gear 15 is driven to rotate through the speed-reducing gears, and the main transmission second-gear speed-changing gear 15 drives the large gear ring 12 to rotate through the speed-reducing gear E17, so that the main shaft 18 is driven to rotate for machining.
Claims (5)
1. The utility model provides a heavy horizontal lathe main shaft precision indexing mechanism of numerical control, includes bull gear (12), its characterized in that: the large gear ring (12) is connected with two clearance eliminating mechanisms, each clearance eliminating mechanism comprises an alternating current servo motor (1), each alternating current servo motor (1) is connected with a sliding gear (9) through a planetary reducer (2), each sliding gear (9) is connected with a reduction gear D (10), each reduction gear D (10) is coaxial with a clearance eliminating gear (11), and the clearance eliminating gears (11) are meshed with the large gear ring (12).
2. The precise indexing mechanism for the main shaft of the numerical control heavy horizontal machine tool according to claim 1, characterized in that: the hydraulic control shifting device further comprises a hydraulic control shifting oil cylinder (8), and the hydraulic control shifting oil cylinder (8) is connected with the two sliding shifting gears (9) through a shifting fork.
3. The precise indexing mechanism for the spindle of the numerical control heavy horizontal machine tool according to claim 2, characterized in that: during indexing, the hydraulic control shifting oil cylinder (8) controls the slipping shifting gear (9) to be meshed with the speed reduction gear D (10); during processing, the hydraulic control shifting oil cylinder (8) controls the slipping shifting gear (9) to be separated from the speed reduction gear D (10).
4. The precise indexing mechanism for the main shaft of the numerical control heavy horizontal machine tool according to claim 3, characterized in that: the main motor (7) is connected with a main transmission second-gear speed change gear (15) through a plurality of speed reduction gears, the main transmission second-gear speed change gear (15) and the speed reduction gear E (17) are fixed on a shaft III, and the speed reduction gear E (17) is meshed with the large gear ring (12).
5. The precise indexing mechanism for the spindle of the numerical control heavy horizontal machine tool according to claim 4, characterized in that: the large gear ring (12) is fixed on a main shaft (18), one end of the main shaft (18) is connected with a faceplate (14), and the end part of the other end of the main shaft (18) is fixed with a circular grating (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210783989.2A CN114932453A (en) | 2022-06-28 | 2022-06-28 | Precise indexing mechanism for main shaft of numerical control heavy horizontal machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210783989.2A CN114932453A (en) | 2022-06-28 | 2022-06-28 | Precise indexing mechanism for main shaft of numerical control heavy horizontal machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN114932453A true CN114932453A (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210783989.2A Pending CN114932453A (en) | 2022-06-28 | 2022-06-28 | Precise indexing mechanism for main shaft of numerical control heavy horizontal machine tool |
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| CN (1) | CN114932453A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06137345A (en) * | 1992-10-23 | 1994-05-17 | Izawa Gijutsu Kenkyusho:Kk | One-way clutch and indexing device for machine tool using the clutch |
| CN201009122Y (en) * | 2007-04-06 | 2008-01-23 | 齐重数控装备股份有限公司 | Automatic accurate indexing mechanism of numerical control machine |
| CN102009372A (en) * | 2010-11-05 | 2011-04-13 | 威海华东数控股份有限公司 | Vertical vehicle boring-mill switching combined machining center with gantry structure |
| CN201856126U (en) * | 2010-11-05 | 2011-06-08 | 威海华东数控股份有限公司 | Vertical turning, boring and milling switching composite processing center with gantry structure |
| CN202344393U (en) * | 2011-12-06 | 2012-07-25 | 齐重数控装备股份有限公司 | Gear clearance eliminating mechanism for heavy-duty CNC roll grinder |
| CN102658400A (en) * | 2012-06-07 | 2012-09-12 | 天津第一机床总厂 | Digital control gear milling machine of spiral bevel gear |
| JP2012192481A (en) * | 2011-03-16 | 2012-10-11 | Nachi Fujikoshi Corp | Spindle driving device |
| CN211464845U (en) * | 2019-11-15 | 2020-09-11 | 上海机床厂有限公司 | High-precision large-torque independent C-axis indexing spindle box for horizontal turning and milling center |
| CN213998763U (en) * | 2020-12-03 | 2021-08-20 | 天水星火机床有限责任公司 | C-axis feeding indexing device of heavy horizontal lathe |
-
2022
- 2022-06-28 CN CN202210783989.2A patent/CN114932453A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06137345A (en) * | 1992-10-23 | 1994-05-17 | Izawa Gijutsu Kenkyusho:Kk | One-way clutch and indexing device for machine tool using the clutch |
| CN201009122Y (en) * | 2007-04-06 | 2008-01-23 | 齐重数控装备股份有限公司 | Automatic accurate indexing mechanism of numerical control machine |
| CN102009372A (en) * | 2010-11-05 | 2011-04-13 | 威海华东数控股份有限公司 | Vertical vehicle boring-mill switching combined machining center with gantry structure |
| CN201856126U (en) * | 2010-11-05 | 2011-06-08 | 威海华东数控股份有限公司 | Vertical turning, boring and milling switching composite processing center with gantry structure |
| JP2012192481A (en) * | 2011-03-16 | 2012-10-11 | Nachi Fujikoshi Corp | Spindle driving device |
| CN202344393U (en) * | 2011-12-06 | 2012-07-25 | 齐重数控装备股份有限公司 | Gear clearance eliminating mechanism for heavy-duty CNC roll grinder |
| CN102658400A (en) * | 2012-06-07 | 2012-09-12 | 天津第一机床总厂 | Digital control gear milling machine of spiral bevel gear |
| CN211464845U (en) * | 2019-11-15 | 2020-09-11 | 上海机床厂有限公司 | High-precision large-torque independent C-axis indexing spindle box for horizontal turning and milling center |
| CN213998763U (en) * | 2020-12-03 | 2021-08-20 | 天水星火机床有限责任公司 | C-axis feeding indexing device of heavy horizontal lathe |
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