CN115502485B - Impact-resistant adjusting device of feed ball screw directly connected with cutter spindle - Google Patents
Impact-resistant adjusting device of feed ball screw directly connected with cutter spindle Download PDFInfo
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- CN115502485B CN115502485B CN202211286493.0A CN202211286493A CN115502485B CN 115502485 B CN115502485 B CN 115502485B CN 202211286493 A CN202211286493 A CN 202211286493A CN 115502485 B CN115502485 B CN 115502485B
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- feed
- large gear
- friction pad
- ball screw
- adjusting
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- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 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
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 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
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- 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 feed ball screw impact resistance adjusting device directly connected with a cutter main shaft, which comprises a feed box and a feed driving device, wherein a feed driving pinion of the feed driving device is meshed with a feed driven large gear, a screw nut is arranged on the feed driven large gear, a ball screw is assembled in the screw nut, a shaft sleeve integrally arranged with the feed driven large gear is arranged on the feed 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 at the outer side of the plane bearing at the outer side; an adjusting assembly is mounted on the lower surface of the feeding driven large gear on the feeding box, and the center of the adjusting assembly is perpendicular to the driven large gear. The adjusting component enables constant friction resistance to be generated between the friction pad and the large gear, so that constant damping moment is generated to counter reversible moment generated by axial cutting force of the screw rod. The vibration caused by the tooth cutting process can be eliminated when the screw rod is driven to push the cutter 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 an impact resistance adjusting device of a feed ball screw, which is directly connected with a cutter spindle.
Background
The numerical control spiral bevel gear milling machine can be divided into a traditional rocker 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 rocker type layout spiral bevel gear milling machine comprises an eccentric drum, a rocker bracket, a lathe bed, a rotary plate, a saddle, a stand column, a workpiece box and the like, wherein a cutter shaft is located on the eccentric drum. The gear milling machine for the spiral bevel gear arranged in the horizontal vertical machining center comprises a stand column, a cutter box, a lathe bed, a saddle, the stand column, a workpiece box and the like. Either way, the tool feed is in the form of large magazine movements to complete the actual tool feed. However, for a large-scale numerical control gear milling machine, the feeding mechanism form and the power and the transmission ratio are huge due to the large box body. In particular to a traditional cradle layout spiral bevel gear milling machine. The impact resistance of the feed screw is overcome by the gravity of the box body. The main shaft of the rotary cutter is directly connected with the feed transmission ball screw and depends on the screw nut.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the feed ball screw impact resistance adjusting device which can reduce the manufacturing cost, greatly improve the gear cutting precision and is applicable to the direct connection with the cutter spindle for processing single-piece or small-batch gears.
The invention is realized in such a way, a feed ball screw shock resistance adjusting device directly connected with a cutter spindle comprises a feed box connected with an eccentric drum, a feed driving device is arranged on the feed box, the feed driving device comprises a gear shaft connected with a motor shaft of a servo motor through a coupler, a feed driving pinion is arranged on the gear shaft, the feed driving pinion is meshed with a feed driven large gear, a screw nut is fixedly arranged on the feed 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 with the feed driven large gear is arranged on the feed 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 at the outer side of the outer plane bearing; the method is characterized in that: an adjusting component which is in abutting connection with the driven large gear and generates constant friction resistance is arranged on the lower surface of the feeding driven large gear on the feeding box, and the center of the adjusting component is vertical to the driven large gear; the adjusting assembly comprises an adjusting screw sleeve which is screwed in a threaded hole on the feeding box, and the threaded hole is perpendicular to the driven large gear; a compression spring is arranged in the adjusting screw sleeve in the threaded hole, the upper end of the compression spring is connected with a friction pad supporting disc, the upper end surface of the friction pad supporting disc is embedded with a friction pad, and the friction pad is abutted with the lower surface of the feeding driven large gear under the action of the compression spring; the adjusting screw sleeve is provided with an adjusting pad.
Preferably, the upper portion of friction pad supporting disk is equipped with friction pad mounting groove, the center of friction pad mounting groove is equipped with the locating hole, the lower surface of friction pad is equipped with the reference column, the reference column cartridge of friction pad is in the locating hole at the center of friction pad mounting groove.
Preferably, the lower surface of the friction pad supporting disc is provided with a compression spring positioning and mounting groove.
Preferably, the friction pad is made of copper sand canvas to increase resistance.
The invention has the advantages and technical effects that: due to the adoption of the technical scheme, the impact-resistant device of the feed ball screw, which is directly connected with the cutter main shaft, of the gear milling machine is adjusted, and the distance between the compression springs is adjusted by adjusting the screw sleeve. The thickness of the adjusting pad is matched and ground to keep the design pressing force of the adjusting screw sleeve, and the damping moment in the design is the number calculated by the design, so that the adjusting screw sleeve cannot be arbitrarily propped up, and the constant friction resistance is generated between the friction pad and the large gear by changing the matched and ground thickness of the adjusting pad, so that the reversible moment generated by the axial cutting force of the screw rod is counterbalanced by the constant damping moment. The vibration caused by the tooth cutting process can be eliminated when the screw rod is driven to push the cutter shaft to feed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is an enlarged view of the section I in 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, feeding a driving pinion; 3. feeding a driven gearwheel; 3-1, a screw nut; 3-2, a ball screw; 3-3, a flange sleeve; 4. a planar bearing; 5. a radial sleeve; 6. locking a nut; 7. an adjustment assembly; 7-1, adjusting a screw sleeve; 7-2, compressing a spring; 7-3, a friction pad supporting disc; 7-30, friction pad mounting grooves; 7-31, positioning holes; 7-32, a compression spring positioning and mounting groove; 7-4, friction pads; 7-40, positioning columns; 7-5, adjusting the pad; 8. an eccentric drum.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, a feed ball screw shock resistance adjusting device directly connected with a tool spindle comprises a feed box 1 connected with an eccentric drum 8, wherein a feed driving device 2 is mounted on the feed box, the feed driving device comprises a gear shaft 2-3, a motor shaft of which is connected with a servo motor 2-1 through a coupler 2-2, a feed driving pinion 2-4 is arranged on the gear shaft and is meshed with a feed driven large gear 3, a screw nut 3-1 is fixedly mounted on the feed driven large gear close to the eccentric drum side through a fastener, a ball screw 3-2 is mounted in the screw nut, the upper end of the ball screw extends to the eccentric drum side, a flange sleeve 3-3 is mounted at the end part of the ball screw, a shaft sleeve 3-1 integrally arranged with the feed driven large gear is mounted on the feed box through two plane bearings 4, a radial shaft sleeve 5 is arranged between the two plane bearings, and a locking nut 6 is screwed on the outer side of the outer plane bearing; an adjustment assembly 7 which is abutted against the driven large gear and generates constant friction resistance is mounted on the lower surface of the feeding driven large gear on the feeding box 8, and the center of the adjustment assembly is perpendicular to the driven large gear.
Preferably, the adjusting assembly 7 comprises an adjusting screw sleeve 7-1 which is screwed in a threaded hole 8-1 on the feed box, and the threaded hole is perpendicular to the driven large gear; the adjusting screw sleeve is internally provided with a compression spring 7-2, the upper end of the compression spring is connected with a friction pad supporting disc 7-3, the upper end face of the friction pad supporting disc is embedded with a friction pad 7-4, and the friction pad is abutted with the lower surface of the feeding driven large gear under the action of the compression spring. The adjusting component can also adopt a small hydraulic cylinder to realize the tight jacking of adjusting pressure, a piston cylinder of the small hydraulic cylinder is connected with a friction pad supporting disc, and under the action of the small hydraulic cylinder, a friction pad 7-4 embedded on the upper end surface of the friction pad supporting disc is abutted with the lower surface of the feeding driven large gear.
Preferably, the adjusting screw sleeve is provided with the adjusting pad 7-5, and the damping moment in the design is the number calculated by the design, so that the adjusting screw sleeve cannot be arbitrarily pressed tightly, and the adjustment is realized by changing the wearing thickness of the adjusting pad.
Preferably, the upper portion 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 friction pad supporting disc is provided with a compression spring positioning and mounting groove 7-32, which is used for positioning the radial direction and the axial direction of the pressure spring under the condition of simple structure.
Preferably, the friction pad is made of copper sand canvas to increase resistance.
The distance between the compression springs is adjusted by adjusting the threaded sleeve by adopting the technical scheme. The adjusting pad is matched with the thickness dimension to maintain the design pressing force of the adjusting screw sleeve. The constant friction resistance is generated between the friction pad and the large gear, so that the constant damping moment is generated to counter the reversible moment generated by the axial cutting force of the lead screw. The vibration caused by the tooth cutting process can be eliminated when the screw rod is driven to push the cutter shaft to feed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The feed ball screw impact resistance adjusting device is directly connected with a cutter spindle and comprises a feed box connected with an eccentric drum, a feed driving device is mounted on the feed box, the feed driving device comprises a gear shaft connected with a motor shaft of a servo motor through a coupler, a feed driving pinion is arranged on the gear shaft and meshed with a feed driven large gear, a screw nut is fixedly mounted on the feed driven large gear close to the eccentric drum side through a fastener, a ball screw is mounted in the screw nut, the upper end of the ball screw extends to the eccentric drum side, a flange sleeve is mounted at the end part of the ball screw, a shaft sleeve integrally arranged with the feed driven large gear is mounted on the feed 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 at the outer side of the outer plane bearing; the method is characterized in that: an adjusting component which is in abutting connection with the driven large gear and generates constant friction resistance is arranged on the lower surface of the feeding driven large gear on the feeding box, and the center of the adjusting component is vertical to the driven large gear;
the adjusting assembly comprises an adjusting screw sleeve which is screwed in a threaded hole on the feeding box, and the threaded hole is perpendicular to the driven large gear; a compression spring is arranged in the adjusting screw sleeve in the threaded hole, the upper end of the compression spring is connected with a friction pad supporting disc, the upper end surface of the friction pad supporting disc is embedded with a friction pad, and the friction pad is abutted with the lower surface of the feeding driven large gear under the action of the compression spring; the adjusting screw sleeve is provided with an adjusting pad.
2. The impact resistance adjustment device for a feed ball screw directly connected to a tool spindle according to claim 1, wherein: the upper portion of friction pad supporting disk is equipped with friction pad mounting groove, the center of friction pad mounting groove is equipped with the locating hole, the lower surface of friction pad is equipped with the reference column, the reference column cartridge of friction pad is in the locating hole at the center of friction pad mounting groove.
3. The impact resistance adjustment device for a feed ball screw directly connected to a tool spindle according to claim 1, wherein: the friction pad supporting plate lower surface is equipped with hold-down spring positioning mounting groove.
4. The impact resistance adjustment device for a feed ball screw directly connected to a tool spindle according to claim 1, wherein: the friction pad is made of copper sand canvas.
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 CN115502485A (en) | 2022-12-23 |
| CN115502485B true 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) |
Family Cites Families (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 |
| CN102528526B (en) * | 2012-01-11 | 2013-10-30 | 江苏高精机电装备有限公司 | Retractable swing boring and milling head |
| CN102671315B (en) * | 2012-06-05 | 2014-10-15 | 刘晓桐 | Slowly-dropping escape device |
| CN105215475B (en) * | 2015-08-27 | 2017-09-15 | 天津第一机床总厂 | Numerical control Double-cutter straight bevel gear generating machine |
| US10767412B2 (en) * | 2018-01-08 | 2020-09-08 | Magna Closures Inc. | Electromechanical strut with power actuator having supplemental friction control |
| 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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2022
- 2022-10-20 CN CN202211286493.0A patent/CN115502485B/en active Active
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| CN115502485A (en) | 2022-12-23 |
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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. Country or region after: China 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. Country or region before: China |