CN115502485A - Feeding ball screw directly connected with tool spindle and impact-resistant adjusting device - Google Patents
Feeding ball screw directly connected with tool spindle and impact-resistant adjusting device Download PDFInfo
- Publication number
- CN115502485A CN115502485A CN202211286493.0A CN202211286493A CN115502485A CN 115502485 A CN115502485 A CN 115502485A CN 202211286493 A CN202211286493 A CN 202211286493A CN 115502485 A CN115502485 A CN 115502485A
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- CN
- China
- Prior art keywords
- feeding
- friction pad
- ball screw
- adjusting
- directly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 244000309464 bull Species 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 abstract description 7
- 238000013016 damping Methods 0.000 abstract description 5
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 238000003801 milling Methods 0.000 description 9
- 238000003825 pressing Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F1/00—Making gear teeth by tools of which the profile matches the profile of the required surface
- B23F1/06—Making gear teeth by tools of which the profile matches the profile of the required surface by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/10—Arrangements for compensating irregularities in drives or indexing mechanisms
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/402—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw in which screw or nut can both be driven
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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
Abstract
The invention discloses a feeding ball screw impact resistance adjusting device directly connected with a tool spindle, which comprises a feeding box and a feeding driving device, wherein a feeding driving pinion of the feeding driving device is meshed with a feeding driven gearwheel, a screw nut is installed on the feeding driven gearwheel, a ball screw is assembled in the screw nut, a shaft sleeve integrally arranged on the feeding driven gearwheel is installed on the feeding box through two plane bearings, a radial shaft sleeve is arranged between the two plane bearings, and a lock nut is screwed on the shaft sleeve on the outer side of the outer plane bearing; an adjusting component is arranged on the lower surface of the feeding driven bull gear on the feeding box, and the center of the adjusting component is perpendicular to the driven bull gear. The adjusting assembly enables constant friction resistance to be generated between the friction pad and the large gear, and therefore constant damping torque is generated to counterbalance the reversible torque generated by the screw rod under the action of axial cutting force. The vibration caused by the gear cutting process can be eliminated when the screw drives the propelling tool shaft to feed.
Description
Technical Field
The invention belongs to the technical field of numerical control spiral bevel gear milling machines, and particularly relates to a feeding ball screw impact-resistant adjusting device directly connected with a tool spindle.
Background
The numerical control spiral bevel gear milling machine can be divided into a traditional swing table type layout spiral bevel gear milling machine and a horizontal vertical machining center layout spiral bevel gear milling machine according to different layouts, and the swing table type layout spiral bevel gear milling machine comprises an eccentric drum wheel where a cutter shaft is located, a swing table drum wheel, a swing table support, a lathe bed, a rotary plate, a saddle, an upright post, a workpiece box and the like. The arc-tooth bevel gear milling machine with the horizontal vertical machining center layout comprises a stand column, a cutter box, a lathe bed, a saddle, a stand column, a workpiece box and the like. In either form, the tool feed is in the form of movement of the respective large housings to complete the actual tool feed. However, for a large numerical control gear milling machine, the box body is large, and the form, power and transmission ratio of the feeding mechanism are also huge. In particular to a traditional cradle type layout spiral bevel gear milling machine. The impact resistance of the feed screw is overcome by the gravity of the box body. And the main shaft of the rotary cutter directly feeds the transmission ball screw by itself, and the transmission ball screw is required to be close to the screw nut itself.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the feed ball screw impact-resistant adjusting device directly connected with the cutter main shaft, which can reduce the manufacturing cost, greatly improve the gear cutting machining precision and be suitable for single-piece or small-batch gear machining.
The invention is realized in this way, a feeding ball screw impact resistance adjusting device directly connected with a tool spindle comprises a feeding box connected with an eccentric drum, a feeding driving device is arranged on the feeding box, the feeding driving device comprises a gear shaft connected with a motor shaft of a servo motor through a coupler, a feeding driving pinion is arranged on the gear shaft and meshed with a feeding driven large gear, a screw nut is fixedly arranged on the feeding driven large gear close to the eccentric drum side through a fastener, a ball screw is assembled in the screw nut, the upper end of the ball screw extends to the eccentric drum side, a flange sleeve is arranged at the end part of the ball screw, a shaft sleeve integrally arranged on the feeding driven large gear is arranged on the feeding box through two plane bearings, a radial shaft sleeve is arranged between the two plane bearings, and a lock nut is screwed on the shaft sleeve on the outer side of the outer plane bearing; the method is characterized in that: the lower surface of the feeding driven bull gear is provided with an adjusting component which is abutted with the driven bull gear and generates constant frictional resistance, and the center of the adjusting component is perpendicular to the driven bull gear.
Preferably, the adjusting assembly comprises an adjusting threaded sleeve, the adjusting threaded sleeve is screwed in a threaded hole in the feeding box, and the threaded hole is perpendicular to the driven gearwheel; and a pressing spring is arranged in the adjusting threaded sleeve in the threaded hole, the upper end of the pressing spring is connected with a friction pad supporting disc, a friction pad is embedded on the upper end surface of the friction pad supporting disc, and the friction pad is abutted against the lower surface of the feed driven gearwheel under the action of the pressing spring.
Preferably, an adjusting pad is arranged on the adjusting screw sleeve.
Preferably, a friction pad mounting groove is formed in the upper portion of the friction pad supporting plate, a positioning hole is formed in the center of the friction pad mounting groove, a positioning column is arranged on the lower surface of the friction pad, and the positioning column of the friction pad is inserted into the positioning hole in the center of the friction pad mounting groove.
Preferably, the lower surface of the friction pad supporting plate is provided with a compression spring positioning installation groove.
Preferably, the friction pad is made of copper-sandwiched sand canvas to increase resistance.
The invention has the advantages and technical effects that: due to the adoption of the technical scheme, the feeding ball screw directly connected with the cutter spindle of the gear milling machine is adjusted, and the distance of the compression spring is adjusted by adjusting the threaded sleeve. The design pressing force of the adjusting screw sleeve is kept by adjusting the match grinding thickness of the pad, and the adjusting screw sleeve cannot be pushed up at will because the damping torque is fixed by design calculation in the design, and the design is realized by changing the match grinding thickness of the adjusting pad, so that constant friction resistance is generated between the friction pad and the large gear, and the generated constant damping torque resists the reversible torque generated by the axial cutting force of the screw rod. The vibration caused by the gear cutting process can be eliminated when the screw drives the propelling tool shaft to feed.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is an enlarged view of a portion I of fig. 1.
In the figure, 1, a feed box; 1-1, a threaded hole 2 and a feed driving device; 2-1, a servo motor; 2-2, a coupler; 2-3, gear shaft; 2-4, a feed drive pinion; 3. feeding the driven bull gear; 3-1, a screw nut; 3-2, a ball screw; 3-3, flange sleeve; 4. a flat bearing; 5. a radial shaft sleeve; 6. locking a nut; 7. an adjustment assembly; 7-1, adjusting the threaded sleeve; 7-2, a compression spring; 7-3, friction pad support disc; 7-30, a friction pad mounting groove; 7-31, positioning holes; 7-32, a compression spring positioning installation groove; 7-4, friction pads; 7-40, positioning columns; 7-5, adjusting the cushion; 8. an eccentric drum.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Referring to fig. 1 and 2, a feeding ball screw impact resistance adjusting device directly connected with a tool spindle comprises a feeding box 1 connected with an eccentric drum 8, a feeding driving device 2 is installed on the feeding box, the feeding driving device comprises a gear shaft 2-3 connected with a motor shaft of a servo motor 2-1 through a coupler 2-2, a feeding driving pinion 2-4 is arranged on the gear shaft, the feeding driving pinion is meshed with a feeding driven gearwheel 3, a screw nut 3-1 is fixedly installed on the feeding driven gearwheel close to the eccentric drum side through a fastener, a ball screw 3-2 is assembled in the screw nut, the upper end of the ball screw extends to the eccentric drum side, a flange sleeve 3-3 is installed at the end of the ball screw, a shaft sleeve 3-1 integrally arranged on the feeding box is installed on the feeding box through two plane bearings 4, a radial shaft sleeve 5 is arranged between the two plane bearings, and a lock nut 6 is screwed on the shaft sleeve outside the outer plane bearing; an adjusting component 7 which is abutted with the driven gearwheel and generates constant frictional resistance is arranged on the lower surface of the feeding driven gearwheel on the feeding box 8, and the center of the adjusting component is vertical to the driven gearwheel.
Preferably, the adjusting assembly 7 comprises an adjusting threaded sleeve 7-1, the adjusting threaded sleeve is screwed in a threaded hole 8-1 in the feeding box, and the threaded hole is perpendicular to the driven gearwheel; and a pressing spring 7-2 is arranged in the adjusting threaded sleeve in the threaded hole, the upper end of the pressing spring is connected with a friction pad supporting plate 7-3, a friction pad 7-4 is embedded on the upper end surface of the friction pad supporting plate, and the friction pad is abutted against the lower surface of the feed driven large gear under the action of the pressing spring. The adjusting component can also adopt a small hydraulic cylinder to realize pressure adjusting and jacking, a piston cylinder of the small hydraulic cylinder is connected with a friction pad supporting plate, and a friction pad 7-4 embedded on the upper end surface of the friction pad supporting plate is abutted against the lower surface of the feed driven bull gear under the action of the small hydraulic cylinder.
Preferably, the adjusting screw sleeve is provided with an adjusting pad 7-5, and the adjusting screw sleeve cannot be pushed up at will because the damping torque is a fixed number calculated by design in the design, and the adjusting is realized by changing the grinding thickness of the adjusting pad.
Preferably, the upper part of the friction pad supporting plate 7-3 is provided with a friction pad mounting groove 7-30, the center of the friction pad mounting groove is provided with a positioning hole 7-31, the lower surface of the friction pad 7-4 is provided with a positioning column 7-40, and the positioning column of the friction pad is inserted into the positioning hole in the center of the friction pad mounting groove.
Preferably, the lower surface of the support plate of the friction pad is provided with a positioning installation groove 7-32 of the pressure spring, which is used for positioning the pressure spring in the radial direction and the axial direction under the condition of simple structure.
Preferably, the friction pad is made of canvas filled with copper sand to increase resistance.
According to the technical scheme, the distance of the compression spring is adjusted by adjusting the threaded sleeve. The adjusting pad is matched and ground to keep the design pressing force of the adjusting screw sleeve. So that constant frictional resistance is generated between the friction pad and the large gear, and constant damping torque is generated to counterbalance the reversible torque generated by the screw rod under the axial cutting force. The vibration caused by the tooth cutting process can be eliminated when the screw drives the pushing cutter shaft to feed.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. A feeding ball screw impact-resistant adjusting device directly connected with a tool spindle comprises a feeding box connected with an eccentric drum, wherein a feeding driving device is installed on the feeding box and comprises a gear shaft connected with a motor shaft of a servo motor through a coupler, a feeding driving pinion is arranged on the gear shaft and meshed with a feeding driven large gear, a screw nut is fixedly installed on the feeding driven large gear close to the eccentric drum through a fastener, a ball screw is assembled in the screw nut, the upper end of the ball screw extends to the eccentric drum side, a flange sleeve is installed at the end part of the ball screw, a shaft sleeve integrally arranged on the feeding driven large gear is installed on the feeding box through two plane bearings, a radial shaft sleeve is arranged between the two plane bearings, and a locking nut is screwed on the shaft sleeve on the outer side of the outer plane bearing; the method is characterized in that: the lower surface of the feeding driven gearwheel is provided with an adjusting component which is abutted against the driven gearwheel and generates constant frictional resistance, and the center of the adjusting component is perpendicular to the driven gearwheel.
2. The feed ball screw lash adjustment device directly connected to the tool spindle of claim 1, wherein: the adjusting assembly comprises an adjusting threaded sleeve, the adjusting threaded sleeve is screwed in a threaded hole in the feeding box, and the threaded hole is perpendicular to the driven gearwheel; and a compression spring is arranged in the adjusting threaded sleeve in the threaded hole, the upper end of the compression spring is connected with a friction pad supporting plate, a friction pad is embedded on the upper end surface of the friction pad supporting plate, and the friction pad is abutted against the lower surface of the feeding driven gearwheel under the action of the compression spring.
3. The feed ball screw lash adjustment device directly connected to the tool spindle of claim 1, wherein: an adjusting pad is arranged on the adjusting screw sleeve.
4. The feed ball screw lash adjustment device directly connected to the tool spindle of claim 1, wherein: the upper portion of the friction pad supporting disk is provided with a friction pad mounting groove, a positioning hole is formed in the center of the friction pad mounting groove, a positioning column is arranged on the lower surface of the friction pad, and the positioning column of the friction pad is inserted into the positioning hole in the center of the friction pad mounting groove.
5. The feed ball screw lash adjustment device directly connected to the tool spindle of claim 1, wherein: and a compression spring positioning installation groove is formed in the lower surface of the friction pad supporting plate.
6. The feed ball screw lash adjustment device directly connected to the tool spindle of claim 1, wherein: the friction pad is made of canvas filled with copper sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211286493.0A CN115502485B (en) | 2022-10-20 | 2022-10-20 | Impact-resistant adjusting device of feed ball screw directly connected with cutter spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211286493.0A CN115502485B (en) | 2022-10-20 | 2022-10-20 | Impact-resistant adjusting device of feed ball screw directly connected with cutter spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115502485A true CN115502485A (en) | 2022-12-23 |
| CN115502485B CN115502485B (en) | 2023-06-20 |
Family
ID=84510785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211286493.0A Active CN115502485B (en) | 2022-10-20 | 2022-10-20 | Impact-resistant adjusting device of feed ball screw directly connected with cutter spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115502485B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200960620Y (en) * | 2006-11-01 | 2007-10-17 | 天津第一机床总厂 | Feeding mechanism for digital control gear milling machine |
| CN201239832Y (en) * | 2008-08-19 | 2009-05-20 | 天津市精诚机床制造有限公司 | Cutter axle box feed gear of spiral bevel gear milling machine |
| CN102528526A (en) * | 2012-01-11 | 2012-07-04 | 江苏高精机电装备有限公司 | Retractable swing boring and milling head |
| CN102671315A (en) * | 2012-06-05 | 2012-09-19 | 刘晓桐 | Slowly-dropping escape device |
| CN105215475A (en) * | 2015-08-27 | 2016-01-06 | 天津第一机床总厂 | Numerical control Double-cutter straight bevel gear generating machine |
| CN108488313A (en) * | 2018-06-22 | 2018-09-04 | 上海史狄尔建筑减震科技有限公司 | The constant type frcition damper of frictional force |
| CN110017078A (en) * | 2018-01-08 | 2019-07-16 | 麦格纳覆盖件有限公司 | Electromechanical strut with the power actuator controlled with additional friction |
| CN215966728U (en) * | 2021-08-24 | 2022-03-08 | 湖南中大创远数控装备有限公司 | Gear machining machine tool |
-
2022
- 2022-10-20 CN CN202211286493.0A patent/CN115502485B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200960620Y (en) * | 2006-11-01 | 2007-10-17 | 天津第一机床总厂 | Feeding mechanism for digital control gear milling machine |
| CN201239832Y (en) * | 2008-08-19 | 2009-05-20 | 天津市精诚机床制造有限公司 | Cutter axle box feed gear of spiral bevel gear milling machine |
| CN102528526A (en) * | 2012-01-11 | 2012-07-04 | 江苏高精机电装备有限公司 | Retractable swing boring and milling head |
| CN102671315A (en) * | 2012-06-05 | 2012-09-19 | 刘晓桐 | Slowly-dropping escape device |
| CN105215475A (en) * | 2015-08-27 | 2016-01-06 | 天津第一机床总厂 | Numerical control Double-cutter straight bevel gear generating machine |
| CN110017078A (en) * | 2018-01-08 | 2019-07-16 | 麦格纳覆盖件有限公司 | Electromechanical strut with the power actuator controlled with additional friction |
| CN108488313A (en) * | 2018-06-22 | 2018-09-04 | 上海史狄尔建筑减震科技有限公司 | The constant type frcition damper of frictional force |
| CN215966728U (en) * | 2021-08-24 | 2022-03-08 | 湖南中大创远数控装备有限公司 | Gear machining machine tool |
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| Publication number | Publication date |
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| CN115502485B (en) | 2023-06-20 |
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Address after: No. 11 Chuyuan Road, Dasi High tech Industrial Park, Xiqing Economic Development Zone, Tianjin, 300385 Patentee after: General Technology Group Tianjin First Machine Tool Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: No. 11, Chuyuan Road, Dasi Hi tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin, 300385 Patentee before: Tianjin First Machine Tool Co.,Ltd. Guo jiahuodiqu before: Zhong Guo |