CN204413726U - The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower - Google Patents
The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower Download PDFInfo
- Publication number
- CN204413726U CN204413726U CN201520073786.XU CN201520073786U CN204413726U CN 204413726 U CN204413726 U CN 204413726U CN 201520073786 U CN201520073786 U CN 201520073786U CN 204413726 U CN204413726 U CN 204413726U
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- gear
- ball race
- fixed
- casing
- pinion
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Abstract
The utility model discloses 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 formed by the first gear and the second gear combination, the upper side place of the first gear is provided with annular slotted, second gear is placed in annular slotted, second gear is provided with locking slot and ball race, second gear is fixed by nut and the first gear, 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.The utility model 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.
Description
Technical field
The utility model 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 gap eliminating gear device that the utility model provides a kind of numerical control drilling machine unit head 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 utility model is achieved through 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 beneficial effects of the utility model are: the utility model 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 utility model;
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 utility model will be further described in conjunction with the embodiments.
See figures.1.and.2, gap eliminating gear device of the present utility model 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 utility model 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 preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
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 |
|---|---|---|---|
| CN201520073786.XU CN204413726U (en) | 2015-02-02 | 2015-02-02 | The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073786.XU CN204413726U (en) | 2015-02-02 | 2015-02-02 | The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204413726U true CN204413726U (en) | 2015-06-24 |
Family
ID=53464132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520073786.XU Expired - Fee Related CN204413726U (en) | 2015-02-02 | 2015-02-02 | The gap eliminating gear device that a kind of numerical control drilling machine unit head is upper and lower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204413726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589130A (en) * | 2015-02-02 | 2015-05-06 | 芜湖瑞精机床有限责任公司 | Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine |
| CN104942609A (en) * | 2015-07-08 | 2015-09-30 | 湖北汽车工业学院 | Gear rack drive revolving worktable |
| CN105333122A (en) * | 2015-11-30 | 2016-02-17 | 哈尔滨科能熔敷科技有限公司 | Double-gear type wiggler with clearance eliminating function |
-
2015
- 2015-02-02 CN CN201520073786.XU patent/CN204413726U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589130A (en) * | 2015-02-02 | 2015-05-06 | 芜湖瑞精机床有限责任公司 | Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine |
| CN104942609A (en) * | 2015-07-08 | 2015-09-30 | 湖北汽车工业学院 | Gear rack drive revolving worktable |
| CN105333122A (en) * | 2015-11-30 | 2016-02-17 | 哈尔滨科能熔敷科技有限公司 | Double-gear type wiggler with clearance eliminating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20190202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |