CN208391915U - Synchronous electric screw driver - Google Patents
Synchronous electric screw driver Download PDFInfo
- Publication number
- CN208391915U CN208391915U CN201821030379.0U CN201821030379U CN208391915U CN 208391915 U CN208391915 U CN 208391915U CN 201821030379 U CN201821030379 U CN 201821030379U CN 208391915 U CN208391915 U CN 208391915U
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- shaft
- bottle opener
- gear
- electric screw
- screw driver
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Abstract
The utility model discloses a kind of synchronous electric screw drivers, including rack, two servo motors and two bottle opener shafts；Wherein, two servo motors are mounted side by side on the rack；The synchronization electric screw driver further includes two gear wheels and two pinion gears；Output shaft of described two gear wheels respectively with two servo motors is connected；Described two pinion gears are respectively provided at the inside between two gear wheels and are meshed respectively with corresponding gear wheel；Described two pinion gears are connected with two bottle opener shafts respectively, make the distance between two bottle opener shafts less than the distance between the output shaft of two servo motors；Fixing sleeve is additionally provided in the front end of bottle opener shaft to be used to replace the bottle opener of different dimensions.With this structure, the screw realization that can two spacing be less than with the outer diameter of electric screw driver itself is synchronous and tight, and reached two screws closes the consistency of tight torque, and then improves the reliability of technology of product.
Description
Technical field
The utility model relates to power tools technology fields, more particularly to a kind of synchronous electric screw driver.
Background technique
Electric screw driver is also electric screwdriver, electric screw driver (electric screwdriver), is for tightening and unscrewing spiral shell
The electric tool of silk nut.The electric tool is mainly used for assembly line equipped with the mechanism for adjusting and limiting torque.It is by electricity
Son, motor, mechanical three parts composition.Since its precision is high, efficiency is fast, has become the assembling indispensable work of industry
Tool.
In an assembling process, it for example relay or needs synchronous screw and tight occasion, needs to two or more
Screw is synchronized and is tightly operated.It is to be mounted side by side on two electric screw drivers in the prior art so that two screws are simultaneously tight as an example
Together, Fig. 1 is that schematic diagram is mounted side by side in two electric screw drivers of the prior art；When two electric screw drivers 100 are mounted side by side on one
After rising, minimum centers-distance between two electric screw drivers 100 from AA1 will necessarily be greater than two electric screw drivers 100 radius it
With, that is, minimum centers-distance between two electric screw drivers can be greater than the outer diameter BB1 of electric screw driver from AA1.When needs are tightened
Two screws spacing be greater than electric screw driver minimum spacing AA1 when, side together is mounted side by side in two electric screw drivers
Case can be used to operate, still, existing when the spacing for two screws for needing to tighten is less than the outer diameter BB1 of electric screw driver itself
There is this device of technology not just to be available, at this time, it may be necessary to which one screw, one screw is simultaneously using manually-operated mode
Tightly, so that cause two screws closes that tight torque is different, the reliability of technology of product is not achieved.
Utility model content
The purpose of the utility model is to overcome the deficiencies of the prior art, provide a kind of synchronous electric screw driver, pass through structure
It improves, the screw realization that can two spacing be less than with the outer diameter of electric screw driver itself is synchronous and tight, has reached two screws
The consistency of tight torque is closed, and then improves the reliability of technology of product.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of synchronous electric screw driver, including rack,
Two servo motors and two bottle opener shafts；Wherein, two servo motors are mounted side by side on the rack；The synchronization electric screw driver is also
Including two gear wheels and two pinion gears；Output shaft of described two gear wheels respectively with two servo motors is connected；Institute
It states the inside that two pinion gears are respectively provided between two gear wheels and is meshed respectively with corresponding gear wheel；It is described two small
Gear is connected with two bottle opener shafts respectively, makes the distance between two bottle opener shafts less than the output shaft of two servo motors
The distance between；Fixing sleeve is additionally provided in the front end of bottle opener shaft to be used to replace the bottle opener of different dimensions.
It further, further include gear-box, the gear-box is fixed in the rack, described two gear wheels and two
Pinion gear passes through gear shaft respectively and is mounted in the gear-box, and the gear shaft of described two gear wheels is watched with described two respectively
The output shaft for taking motor is connected；The gear shaft of described two pinion gears is connected with described two bottle opener shafts respectively；Two
Gear wheel is in be dislocatedly distributed on the axis direction of the output shaft of servo motor.
It further, further include two speed reducers, two speed reducers are mounted side by side in the rack；Described two servos
The output shaft of motor passes through corresponding speed reducer respectively and is connected with the gear shaft of corresponding gear wheel.
The speed reducer is planetary reducer.
The speed reducer have power intake mouth and power output port, the power intake mouth of speed reducer with it is corresponding
The output shaft of servo motor is connected, and the power output port of speed reducer is output shaft, the output shaft of speed reducer with it is corresponding greatly
Also it is connected by shaft coupling between the gear shaft of gear.
The inside and outside flower of a pair of matched conjunction is additionally provided between described two bottle opener shafts and the gear shaft of corresponding pinion gear
Key；One of internal spline, external splines and the gear shaft of corresponding pinion gear are coaxially connected or are arranged in corresponding small tooth
On the gear shaft of wheel, internal spline, external splines it is wherein another coaxially connected with corresponding bottle opener shaft.
The internal spline, the wherein another of external splines are connected between corresponding bottle opener shaft by universal joint.
It is also separately installed with a sliding block in described two bottle opener shafts, and making can between sliding block and corresponding bottle opener shaft
Along the axis synchronizing moving of bottle opener shaft；The sliding block is slidably mounted in rack, is also equipped between sliding block and bracket
Bottle opener precompressed buffer spring.
Two guide rails are additionally provided in the rack, two guide rails are set along the axis direction with the output shaft of servo motor respectively
It sets, and is matched with corresponding sliding block.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is due to using two gear wheels and two pinion gears；Described two gear wheels respectively with two
The output shaft of servo motor is connected；Described two pinion gears be respectively provided at the inside between two gear wheels and respectively with it is corresponding
Gear wheel be meshed；Described two pinion gears are connected with two bottle opener shafts respectively, make between two bottle opener shafts away from
From the distance between the output shaft less than two servo motors；This structure of the utility model can be less than two spacing
The screw realization of the outer diameter of electric screw driver itself is synchronous and tight, has reached the consistency for closing tight torque of two screws, Jin Erti
The high reliability of technology of product.
2, the utility model is also equipped with a sliding block due to using in bottle opener shaft, and make sliding block and bottle opener shaft it
Between can be along the axis synchronizing moving of bottle opener shaft；The sliding block is slidably mounted in rack, between sliding block and bracket
It is also equipped with bottle opener precompressed buffer spring；This structure of the utility model, one when can guarantee bottle opener to knife, and the length of screw is not
One；Two can guarantee to synchronize and be tightened to position, keep preventing lifts when torque.
3, the utility model is additionally provided with a pair of matched conjunction due to using between bottle opener shaft and the gear shaft of pinion gear
Inside and outside spline, to form a kind of linear motion system, when inner spline housing, which is covered, to move along a straight line on external splines, Ke Yichuan
Torque delivery can transmit the load and power of excess, and have a longer life expectancy in addition, spline pair has more compact structure.
4, the utility model is additionally provided with shaft coupling between the output shaft of speed reducer and the gear shaft of gear wheel due to using
Device, and it is additionally provided with universal joint between bottle opener shaft in internal spline, the wherein another of external splines, cooperate to play axis with axis
When, the phenomenon that avoiding slight decentraction.
The utility model is described in further detail with reference to the accompanying drawings and embodiments；But one kind of the utility model is same
Step electric screw driver is not limited to the embodiment.
Detailed description of the invention
Fig. 1 is that schematic diagram is mounted side by side in two electric screw drivers of the prior art；
Fig. 2 is the D structure schematic diagram of the utility model；
Fig. 3 is the main view of the utility model；
Fig. 4 is the top view of the utility model；
Fig. 5 be the bottle opener shaft of the utility model, large and small gear shaft, servo motor output shaft between cooperation signal
Figure.
Specific embodiment
Embodiment
Referring to fig. 2 to shown in Fig. 5, a kind of synchronous electric screw driver of the utility model, including 1, two servo motor of rack
21,22 and two bottle opener shafts 31,32；Wherein, two servo motors 21,22 are mounted side by side in rack 1；This synchronizes electronic
Son further includes two gear wheels 411,421 and two pinion gears 412,422；Described two gear wheels respectively with two servo motors
Output shaft be connected, that is, gear wheel 411 is connected with servo motor 21, and gear wheel 421 is connected with servo motor 22；Institute
State the inside that two pinion gears 412,422 are respectively provided between two gear wheels 411,412 and respectively with corresponding gear wheel phase
Engagement, that is, pinion gear 412 is meshed with gear wheel 411, and pinion gear 422 is meshed with gear wheel 421；Described two pinion gears
It is connected respectively with two bottle opener shafts, that is, pinion gear 412 is connected with bottle opener shaft 31, pinion gear 422 and bottle opener shaft 32
It is connected, makes the distance between the output shaft of less than two servo motors 21,22 of the distance between two bottle opener shafts 31,32；
Fixing sleeve is additionally provided with to be used to replace the bottle opener of different dimensions in the front end of bottle opener shaft, and the front end of bottle opener shaft 31 is equipped with
The front end of fixing sleeve 311, bottle opener shaft 32 is equipped with fixing sleeve 321.
It further, further include gear-box 4, the gear-box 4 is fixed in the rack 1, described two gear wheels
411,421 and two pinion gears 412,422 be mounted in the gear-box 4 by gear shaft respectively, described two gear wheels
411, output shaft of 421 gear shaft respectively with described two servo motors 21,22 is connected；Described two pinion gears 412,
422 gear shaft is connected with described two bottle opener shafts 31,32 respectively；Two gear wheels 411,421 are in the defeated of servo motor
It is in be dislocatedly distributed on the axis direction of shaft.
It further, further include two speed reducers 51,52, two speed reducers 51,52 are mounted side by side in the rack 1；
The output shaft of described two servo motors passes through corresponding speed reducer respectively and is connected with the gear shaft of corresponding gear wheel, that is,
The output shaft of servo motor 21 is connected by speed reducer 51 and the gear shaft of gear wheel 411, and the output shaft for taking motor 22 passes through
Speed reducer 52 and the gear shaft of gear wheel 421 are connected.
The speed reducer 51,52 is planetary reducer.
The speed reducer 51,52 have power intake mouth and power output port, the power intake mouth of speed reducer with
The output shaft of corresponding servo motor is connected, that is, the output shaft phase of the power intake mouth of speed reducer 51 and servo motor 21
Connection, the power intake mouth and the output shaft of servo motor 22 of speed reducer 52 are connected, and the power output port of speed reducer is
Output shaft is also connected by shaft coupling between the output shaft of speed reducer and the gear shaft of corresponding gear wheel, that is, speed reducer 51
Output shaft and the gear shaft of gear wheel 411 between be also connected by shaft coupling 61, the output shaft and gear wheel of speed reducer 52
Also it is connected by shaft coupling 62 between 421 gear shaft.
The inside and outside flower of a pair of matched conjunction is additionally provided between described two bottle opener shafts and the gear shaft of corresponding pinion gear
Key, that is, internal spline 711, the external splines 712 of a pair of matched conjunction are additionally provided between bottle opener shaft 31 and the gear shaft of pinion gear 412；
Internal spline 721, the external splines 722 of a pair of matched conjunction are additionally provided between bottle opener shaft 32 and the gear shaft of pinion gear 422；This implementation
In example, the gear shaft of internal spline 711 and pinion gear 412 is coaxially connected or is arranged on the gear shaft of pinion gear 412, external splines
712 is coaxially connected with bottle opener shaft 31, and the gear shaft of internal spline 721 and pinion gear 422 is coaxially connected or is arranged in pinion gear
On 422 gear shaft, external splines 722 and bottle opener shaft 32 are coaxially connected.
It is connected between external splines 712 and bottle opener shaft 31 by universal joint 81, between external splines 722 and bottle opener shaft 32
It is connected by universal joint 82.
It is also separately installed with a sliding block 91,92 in described two bottle opener shafts 31,32, and turns sliding block with corresponding bottle opener
It can be along the axis synchronizing moving of bottle opener shaft between axis, that is, sliding block 91 is installed, sliding block 91 and bottle opener turn in bottle opener shaft 31
Sliding block 92 can be installed on the axis synchronizing moving of bottle opener shaft, bottle opener shaft 32, sliding block 92 and bottle opener turn between axis 31
It can be slidably mounted in rack 1 along the axis synchronizing moving of bottle opener shaft, sliding block 91 between axis 32, in sliding block 91 and branch
Bottle opener precompressed buffer spring 911 is also equipped between frame 1, sliding block 92 is slidably mounted in rack 1, in sliding block 92 and bracket 1
Between be also equipped with bottle opener precompressed buffer spring 921.
Two guide rails 11,12 are additionally provided in the rack 1, two guide rails 11,12 are respectively along the output shaft with servo motor
Axis direction setting, and matched with corresponding sliding block, sliding block 91 is slidably fitted on guide rail 11, and sliding block 92 is slidably fitted in
On guide rail 12.
The utility model is to be connect using servo motor with planetary reducer, drives gear-box, gear-box by shaft coupling
Force-output shaft band on spline pair (internal spline), spline pair (external splines) by Hooks coupling universal coupling drive bottle opener shaft, bottle opener shaft
Fixation drive bottle opener to do positive and negative rotation campaign again.
Servo motor works in torque mode, motor servo driver and controller and passes through communication connection, controller control
Servo motor currently runs torque data to controller by the revolving speed and holding torque operation, servo motor real-time Transmission of setting.
Torque arithmetic:
The reduction ratio of the reduction ratio * gear-box of servo motor nominal torque * planetary reducer, example:
The nominal torque of servo motor is 1.27Nm,
Planetary reducer is 9:1 (inputting shaft turns 9 circles, and force-output shaft 1 encloses)
Gear-box are as follows: 1:3 (inputting shaft turns 1 circle, and force-output shaft turns 3 circles)
Bottle opener nominal torque neglects efficiency of transmission, about are as follows: 1.27* (9/1) * (1/3)=3.81Nm；
Bottle opener distance computation:
Using double reduction ratio, the first order is for increasing torque, and the second pole (gear-box) is for adjusting bottle opener spacing and watching
Take motor spacing.
Therefore, for the screw of different spacing, as long as adjustment A1 (screw spacing), B1 (servo side by side minimum spacing) ruler
It is very little, C1 size (center of gear wheel and pinion gear away from) is obtained by A1, B1, calculates the modulus and tooth of gear wheel and pinion gear
Number, while second level reduction ratio is obtained, further according to the peak torque of screw locking, the nominal torque of servo motor, multiplied by 1.
Several coefficients (efficiency of transmission), the reduction ratio of the 1st grade of planetary reducer is calculated by formula.
A kind of synchronous electric screw driver of the utility model, use two gear wheels 411,421 and two pinion gears 412,
422；Output shaft of described two gear wheels 411,412 respectively with two servo motors 21,22 is connected；Described two pinion gears
412, it 422 is respectively provided at the inside between two gear wheels 411,421 and is meshed respectively with corresponding gear wheel 411,421；
Described two pinion gears 412,422 are connected with two bottle opener shafts 31,32 respectively, make between two bottle opener shafts 31,32
The distance between the output shaft of less than two servo motors 21,22 of distance；This structure of the utility model, can be between two
Screw realization away from the outer diameter for being less than electric screw driver itself is synchronous and tight, has reached the consistency for closing tight torque of two screws,
And then improve the reliability of technology of product.
A kind of synchronous electric screw driver of the utility model, using be also equipped in bottle opener shaft 31,32 sliding block 91,
92, and making can be along the axis synchronizing moving of bottle opener shaft between sliding block and bottle opener shaft；The sliding block 91,92 can slidably pacify
In rack 1, bottle opener precompressed buffer spring 911,912 is also equipped between sliding block 91,92 and bracket 1；The utility model
This structure, when can guarantee bottle opener to knife using bottle opener precompressed buffer spring 911,912, one, the length of screw is different；Two energy
It is enough to guarantee synchronous and be tightened to position, it keeps preventing lifts when torque.
A kind of synchronous electric screw driver of the utility model, using the tooth in bottle opener shaft 31,32 and pinion gear 412,422
The inside and outside spline of a pair of matched conjunction is additionally provided between wheel shaft, so that a kind of linear motion system is formed, when inner spline housing covers outside
When moving along a straight line on spline, torque can be transmitted, in addition, spline pair has more compact structure, the load of excess can be transmitted
And power, and have a longer life expectancy.
A kind of synchronous electric screw driver of the utility model, using speed reducer output shaft and gear wheel gear shaft it
Between be additionally provided with shaft coupling, and universal joint is additionally provided between bottle opener shaft in internal spline, the wherein another of external splines, to rise
When cooperating to axis with axis, the phenomenon that avoiding slight decentraction.
The preferred embodiment of above-mentioned only the utility model, does not impose any limitation on the present invention.Though
So the utility model has been disclosed with preferred embodiment as above, however is not intended to limit the utility model.It is any to be familiar with this field
Technical staff, in the case where not departing from technical solutions of the utility model range, all using the technology contents of the disclosure above
Many possible changes and modifications are made to technical solutions of the utility model, or are revised as equivalents equivalent embodiment.Therefore,
All contents without departing from technical solutions of the utility model, according to the utility model technical spirit made to the above embodiment
What simple modification, equivalent variation and modification should all be fallen in the range of technical solutions of the utility model protection.
Claims (9)
1. a kind of synchronous electric screw driver, including rack, two servo motors and two bottle opener shafts；Wherein, two servo motors
It is mounted side by side on the rack；It is characterized by: the synchronization electric screw driver further includes two gear wheels and two pinion gears；Described two
Output shaft of a gear wheel respectively with two servo motors is connected；Described two pinion gears are respectively provided between two gear wheels
Inside and be meshed respectively with corresponding gear wheel；Described two pinion gears are connected with two bottle opener shafts respectively, make two
Output shaft the distance between of the distance between a bottle opener shaft less than two servo motors；It is additionally provided in the front end of bottle opener shaft
Fixing sleeve is with the bottle opener for replacing different dimensions.
2. synchronous electric screw driver according to claim 1, it is characterised in that: it is further, it further include gear-box, the tooth
Roller box is fixed in the rack, and described two gear wheels and two pinion gears pass through gear shaft respectively and are mounted on the gear-box
In, output shaft of the gear shaft of described two gear wheels respectively with described two servo motors is connected；Described two pinion gears
Gear shaft be connected respectively with described two bottle opener shafts；Two gear wheels are on the axis direction of the output shaft of servo motor
In being dislocatedly distributed.
3. synchronous electric screw driver according to claim 1 or 2, it is characterised in that: it is further, it further include two decelerations
Machine, two speed reducers are mounted side by side in the rack；The output shaft of described two servo motors passes through corresponding deceleration respectively
Machine is connected with the gear shaft of corresponding gear wheel.
4. synchronous electric screw driver according to claim 3, it is characterised in that: the speed reducer is planetary reducer.
5. synchronous electric screw driver according to claim 3, it is characterised in that: the speed reducer have power intake mouth and
The power intake mouth of power output port, speed reducer is connected with the output shaft of corresponding servo motor, the power of speed reducer
Output port is output shaft, is also connected by shaft coupling between the output shaft of speed reducer and the gear shaft of corresponding gear wheel.
6. synchronous electric screw driver according to claim 2, it is characterised in that: described two bottle opener shafts and corresponding small tooth
The inside and outside spline of a pair of matched conjunction is additionally provided between the gear shaft of wheel；One of internal spline, external splines and corresponding small tooth
The gear shaft of wheel is coaxially connected or is arranged on the gear shaft of corresponding pinion gear, internal spline, external splines it is wherein another with
Corresponding bottle opener shaft is coaxially connected.
7. synchronous electric screw driver according to claim 6, it is characterised in that: the internal spline, external splines it is wherein another
It is connected between corresponding bottle opener shaft by universal joint.
8. synchronous electric screw driver according to claim 1, it is characterised in that: also installed respectively in described two bottle opener shafts
There is a sliding block, and making can be along the axis synchronizing moving of bottle opener shaft between sliding block and corresponding bottle opener shaft；The sliding block can
It is slidably mounted in rack, bottle opener precompressed buffer spring is also equipped between sliding block and bracket.
9. synchronous electric screw driver according to claim 8, it is characterised in that: it is additionally provided with two guide rails in the rack, two
A guide rail is arranged along with the axis direction of the output shaft of servo motor respectively, and matches with corresponding sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821030379.0U CN208391915U (en) | 2018-06-29 | 2018-06-29 | Synchronous electric screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821030379.0U CN208391915U (en) | 2018-06-29 | 2018-06-29 | Synchronous electric screw driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208391915U true CN208391915U (en) | 2019-01-18 |
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ID=65130184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821030379.0U Active CN208391915U (en) | 2018-06-29 | 2018-06-29 | Synchronous electric screw driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208391915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108789252A (en) * | 2018-06-29 | 2018-11-13 | 厦门顶科电子有限公司 | A kind of synchronous electric screw driver |
-
2018
- 2018-06-29 CN CN201821030379.0U patent/CN208391915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108789252A (en) * | 2018-06-29 | 2018-11-13 | 厦门顶科电子有限公司 | A kind of synchronous electric screw driver |
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