CN104589130A - Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine - Google Patents
Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine Download PDFInfo
- Publication number
- CN104589130A CN104589130A CN201510054193.3A CN201510054193A CN104589130A CN 104589130 A CN104589130 A CN 104589130A CN 201510054193 A CN201510054193 A CN 201510054193A CN 104589130 A CN104589130 A CN 104589130A
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- Prior art keywords
- gear
- clearance elimination
- pinion
- fixed
- casing
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Classifications
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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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
- B23Q5/56—Preventing backlash
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a clearance elimination gear device for the upward and downward movement of a power head of a numerical control drilling machine. The device comprises a box body, and a main gear and an auxiliary gear, which are arranged in the box body, wherein the main gear is formed by combining a first gear and a second gear; an annular open groove is formed in the upper lateral surface of the first gear; the second gear is arranged in the annular open groove; locking grooves and marble grooves are formed in the second gear; the second gear is fixed with the first gear through nuts; cylindrical pins fixedly arranged on the first gear are arranged in the marble grooves; a marble is arranged on one side of the cylindrical pin in each marble groove; the marbles are pressed against the cylindrical pins through springs. According to the clearance elimination gear device, the gears are adopted for clearance elimination, and the strength and the stiffness of the gears are higher than those of a circular-arc-tooth synchronous belt, so that the condition that a workpiece is broken or damaged by a falling tool rest in case of braking of a servo motor is completely avoided; the marbles are matched with the springs, so that clearance between the gears is automatically eliminated, and the clearance elimination device is convenient to assemble, disassemble and regulate, and has good clearance elimination effect.
Description
Technical field
The present invention relates to numerically controlled lathe, the gap eliminator when main shaft being specifically related to numerical control drilling machine moves up and down.
Background technology
Affecting operating accuracy in order to avoid there is gap between gear when numerical control drilling machine main shaft moves up and down, numerical control drilling machine needing be configured with corresponding backlash eliminating equipment.Traditional numerical control drilling machine fills a big belt pulley in one end of leading screw, is compressed by expansion sleeve, and servomotor one end fills a small belt pulley, is also compressed by expansion sleeve, is furthered by arc tooth synchronous belt, makes its transmission gapless.Because arc tooth synchronous belt is engineered rubber articles, after long-time use, wearing and tearing are comparatively large, even easily produce fracture.In addition, because ball-screw does not have self-locking, knife rest can be caused to drop, so this structure easily causes potential safety hazard.
Summary of the invention
In order to solve above technical problem, the invention provides the gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower, can ensure that vertical cutter frame moves up and down very close to each other, its installation capability was greatly enhanced more originally.
The present invention is achieved by the following technical solutions:
The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower, comprise casing and be arranged at master gear and pinion in casing, master gear is fixed on one from the rotating shaft that casing stretches out, the two ends of rotating shaft are fixed in casing by bearing, the outside of bearing is provided with capping, axle sleeve is provided with between the side of master gear and bearing, opposite side is locked by gland, pinion engages with master gear, pinion is fixed on one from the motor shaft that casing stretches out, the side of pinion is locked by gland and motor shaft, it is characterized in that: described master gear is formed by the first gear and the second gear combination, the upper side place of the first gear is provided with the annular slotted extending to edge, the shape of the second gear is mated with annular slotted and is placed in annular slotted, second gear is provided with gear centre locking slot and the ball race of the arc being the center of circle, second gear is by being locked to nut on the first gear and the first gear is fixed through locking slot, the straight pin be fixed on the first gear is provided with in ball race, ball race is provided with hoodle in the side of straight pin, by spring apical grafting between hoodle and straight pin.
As preferred embodiment, the quantity of described locking slot and ball race is respectively three groups, and locking slot and ball race adopt spaced mode to be evenly distributed on the second gear.
The invention has the beneficial effects as follows: the present invention adopts gear to realize disappearing gap, and the intensity of gear and rigidity comparatively arc tooth synchronous belt are all good a lot, and when servomotor band-type brake, can not occur ruptures is that knife rest falls the situation smashing workpiece; Set hoodle coordinates spring structure can make automatically to carry out disappearing gap between gear, and assembly and disassembly is easy to adjust, and the gap that disappears is effective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of master gear.
Symbol description: 1-casing, 2-master gear, 3-pinion, 4-rotating shaft, 5-bearing, 6-capping, 7-axle sleeve, 8-gland, 9-motor shaft, 21-first gear, 22-second gear, 23-locking slot, 24-ball race, 25-nut, 26-straight pin, 27-hoodle, 28-spring.
Detailed description of the invention
With reference to the accompanying drawings and the invention will be further described in conjunction with the embodiments.
See figures.1.and.2, gap eliminating gear device of the present invention forms primarily of casing 1, master gear 2 and pinion 3.Master gear 2 is fixed on one from the rotating shaft 4 that casing 1 stretches out, the two ends of rotating shaft 4 are fixed in casing 1 by bearing 5, the outside of bearing 5 is provided with capping 6, axle sleeve 7 is provided with between the side of master gear 2 and bearing 5, opposite side is locked by gland 8, pinion 3 engages with master gear 2, and pinion 3 is fixed on one from the motor shaft 9 that casing 1 stretches out, and the side of pinion 3 is locked by gland 8 and motor shaft 9.During work, motor shaft 9 rotates and drives pinion 3 to rotate, and is rotated when pinion 3 rotates by master gear 2 drive shaft.
Do not have space in order to ensure between master gear 2 and pinion 3, the structure of master gear 2 of the present invention designs.Particularly, master gear 2 is combined by the first gear 21 and the second gear 22.The upper side place of the first gear 21 is provided with the annular slotted extending to edge, and the shape of the second gear 22 is mated with annular slotted and is placed in annular slotted.Second gear 22 is provided with gear centre the locking slot 23 of the arc being the center of circle and ball race 24, the second gear 22 by being locked to nut 25 on the first gear 21 through locking slot and the first gear 21 is fixed.Be provided with the straight pin 26 be fixed on the first gear 21 in ball race 24, ball race 24 is provided with hoodle 27 in the side of straight pin 26, by spring 28 apical grafting between hoodle 27 and straight pin 26.
As shown in Figure 2, good fixing can be carried out in order to ensure the first gear 21 and the second gear 22, and when nut is unclamped, have enough power oppositely to flick, the quantity of locking slot 23 and ball race 24 is respectively three groups, and locking slot 23 and ball race 24 adopt spaced mode to be evenly distributed on the second gear.
During concrete assembling, first load in casing by master gear 2 and pinion 3 according to the position designed, the tooth bar now between master gear 2 and pinion 3 can basic engagement.Unclamped by nut 25, after nut 25 unclamps, the locking relation of the first gear 21 and the second gear 22 disappears.Under the action of the spring 28, the first gear 21 and the second gear 22 oppositely flick, the first gear 21 and the second gear 22 top with the flank of tooth of two on pinion 3 respectively, after top, the helix of the first gear 21 and the second gear 22 can stagger.Gapless between master gear 2 and pinion 3, now again locks nut 25 and can keep the gap state that disappears.As long as be connected with the ball-screw of vertical cutter frame by a star shaft coupling after having assembled, unit head just can be made to realize the process moved up and down, and not only precision is high, and dismounting is also very convenient, and security performance is also very high.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the gap eliminating gear device that a numerical control drilling machine unit head is upper and lower, comprise casing and be arranged at master gear and pinion in casing, master gear is fixed on one from the rotating shaft that casing stretches out, the two ends of rotating shaft are fixed in casing by bearing, the outside of bearing is provided with capping, axle sleeve is provided with between the side of master gear and bearing, opposite side is locked by gland, pinion engages with master gear, pinion is fixed on one from the motor shaft that casing stretches out, the side of pinion is locked by gland and motor shaft, it is characterized in that: described master gear is formed by the first gear and the second gear combination, the upper side place of the first gear is provided with the annular slotted extending to edge, the shape of the second gear is mated with annular slotted and is placed in annular slotted, second gear is provided with gear centre locking slot and the ball race of the arc being the center of circle, second gear is by being locked to nut on the first gear and the first gear is fixed through locking slot, the straight pin be fixed on the first gear is provided with in ball race, ball race is provided with hoodle in the side of straight pin, by spring apical grafting between hoodle and straight pin.
2. gap eliminating gear device according to claim 1, is characterized in that: the quantity of described locking slot and ball race is respectively three groups, and locking slot and ball race adopt spaced mode to be evenly distributed on the second gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054193.3A CN104589130A (en) | 2015-02-02 | 2015-02-02 | Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054193.3A CN104589130A (en) | 2015-02-02 | 2015-02-02 | Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104589130A true CN104589130A (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510054193.3A Pending CN104589130A (en) | 2015-02-02 | 2015-02-02 | Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104589130A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930178A (en) * | 2015-06-20 | 2015-09-23 | 苏州蓝王机床工具科技有限公司 | Structure of numerical control lathe lead screw drive gear case |
| CN107676463A (en) * | 2017-10-19 | 2018-02-09 | 常州机电职业技术学院 | The gap that disappears straight spur gear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5713445A (en) * | 1996-07-22 | 1998-02-03 | Eaton Corporation | Transmission inertia brake with self energizing |
| CN2656077Y (en) * | 2003-08-27 | 2004-11-17 | 江苏多棱数控机床股份有限公司 | Double gear wheel backlash speed reducing drive structure |
| CN1776259A (en) * | 2005-12-02 | 2006-05-24 | 天水星火机床有限责任公司 | High-ridigitypreloading system |
| WO2010071299A1 (en) * | 2008-12-19 | 2010-06-24 | 두산인프라코어 주식회사 | Spindle drive |
| CN103753333A (en) * | 2013-11-28 | 2014-04-30 | 芜湖恒升重型机床股份有限公司 | Backlash elimination structure for gear drive mechanism |
| CN204413726U (en) * | 2015-02-02 | 2015-06-24 | 芜湖瑞精机床有限责任公司 | The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower |
-
2015
- 2015-02-02 CN CN201510054193.3A patent/CN104589130A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5713445A (en) * | 1996-07-22 | 1998-02-03 | Eaton Corporation | Transmission inertia brake with self energizing |
| CN2656077Y (en) * | 2003-08-27 | 2004-11-17 | 江苏多棱数控机床股份有限公司 | Double gear wheel backlash speed reducing drive structure |
| CN1776259A (en) * | 2005-12-02 | 2006-05-24 | 天水星火机床有限责任公司 | High-ridigitypreloading system |
| WO2010071299A1 (en) * | 2008-12-19 | 2010-06-24 | 두산인프라코어 주식회사 | Spindle drive |
| CN103753333A (en) * | 2013-11-28 | 2014-04-30 | 芜湖恒升重型机床股份有限公司 | Backlash elimination structure for gear drive mechanism |
| CN204413726U (en) * | 2015-02-02 | 2015-06-24 | 芜湖瑞精机床有限责任公司 | The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930178A (en) * | 2015-06-20 | 2015-09-23 | 苏州蓝王机床工具科技有限公司 | Structure of numerical control lathe lead screw drive gear case |
| CN107676463A (en) * | 2017-10-19 | 2018-02-09 | 常州机电职业技术学院 | The gap that disappears straight spur gear |
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Application publication date: 20150506 |
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| RJ01 | Rejection of invention patent application after publication |