CN2068894U - Automatic screwdriver with pneumatic press-on and feed - Google Patents
Automatic screwdriver with pneumatic press-on and feed Download PDFInfo
- Publication number
- CN2068894U CN2068894U CN 90207078 CN90207078U CN2068894U CN 2068894 U CN2068894 U CN 2068894U CN 90207078 CN90207078 CN 90207078 CN 90207078 U CN90207078 U CN 90207078U CN 2068894 U CN2068894 U CN 2068894U
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- screw
- piston
- sliding sleeve
- automatic screwdriver
- suspension type
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Abstract
The utility model relates to an automatic screwdriver with pneumatic press-on and feed, which is an automatic operation tool. A pneumatic feed mechanism, a feed guiding mechanism and an adsorption mechanism for adsorbing screws by a vacuum state are assembled on a standard electrical or pneumatic automatic screwdriver. A hanging frame type slide sleeve which can be used for closely absorbing screws of two or more than two specifications is arranged in the adsorption mechanism. The utility model can be used for closely screwing the screws in any direction. The device is suitable for being installed on robots, mechanical hands and special assembling machines for automatic assembling work.
Description
On the production line of automation, no matter be engineering goods or household appliances assembling, screwing screw is the most basic a kind of operation.Common this operation needs manually-operated automatic screwdriver or manual screw cutter to finish.For improve production efficiency and product quality, need and a kind ofly can need not people operation and can screw the automation tools of screw automatically.This class instrument of now having delivered is few, and significant limitation is all arranged.A kind of automatic screwdriver (IEEE JOURNAL OF ROBOTICS AND AUTOMATION that is used for industrial robot of proposing of people such as G, P, Peterson for example, VOL, 4, PP.411～414, AUGUST 1988), adopt a feed pipe that screw is sent into the fusiformis piston, with air rammer the fusiformis piston is advanced then and put in place, fall automatic screwdriver and insert screw, lift automatic screwdriver and take screw out of the fusiformis piston, the fusiformis piston is pulled out, fall automatic screwdriver again screw is screwed in.Enter workpiece for preventing that screw from falling from automatic screwdriver, also be provided with a cover cam claw mechanism and a checkout gear.Though this device and some other similar device have solved the screw of part occasion and have screwed problem automatically, exist following tangible weak point:
1, axial dimension and radial dimension are all very big,, thereby can not adopt because spatial constraints and can't be near screw many in addition parts.
2, complex structure, it is many to screw the required action of screw, thereby the possibility of fault is big.
3, can only be suitable for a kind of screw of single specification, thereby can't on flexible automatic production line, adopt.
Though 4 have got screw and increased the complicated mechanism of a cover for catching, catch that to get action still reliable inadequately.Particularly to upwards or all the more so when tilting to screw in screw.
The objective of the invention is to create a kind of simple in structure, size (particularly radial dimension) compactness can be applicable to two or more specification screws, it is few to screw in action, catch and get the reliable automatic screwdriver of screw,, enlarge its application scenario to overcome the shortcoming of existing automatic screwdriver.
The present invention is on the basis of present commercially available automatic screwdriver, mixes and can catch the mechanism of getting screw securely, can screw in and the mechanism and the relevant detection device of auto-feed with screw.
Fig. 1 is the structure chart of one embodiment of the present of invention;
Fig. 2 is the structural representation of nose suspension type sliding sleeve;
Fig. 3 is the schematic diagram of slidingtype current-collector and feed distance detector;
Fig. 4 is the principle and the structural representation of vacuum detector.
Now, working mechanism of the present invention and technical characterictic are described with of the present invention a kind of embodiment shown in Figure 1.
The chief component that strength of the present invention sucks pneumatic feeding automatic screwdriver is: the electronic or pneumatic automatic screwdriver 1 of commercially available standard, protecgulum 7 and bonnet 2, piston type housing 4, shell 5, feeding back-moving spring 6, air inlet 3, guiding buffering cylinder body 8, guide piston 9, guiding back-moving spring 10, nose suspension type sliding sleeve 11, bleeding point 12, stage clip 13 etc. is characterized in that:
1, said automatic screwdriver 1 is fixed in bonnet 2 and the piston type sandwich type element 4 by means of screw, protecgulum 7 is fixed on the lower end of the housing or the piston type housing 4 of automatic screwdriver 1 with screw thread, the piston type housing then slides in shell 5, the pressure-air of being sent into by air inlet 3 promotes the piston type housing downwards, and it is upwards promoted and resets with feeding back-moving spring 6.Such structure has constituted pneumatic propulsive mechanism of the present invention.When the downward precession screw of screwdriver, pneumatic propulsive mechanism can advance the downward feeding of screwdriver automatically, and pneumatic characteristics to have guaranteed that the movement velocity of screwdriver and screw remains consistent, avoid screwdriver from the head of screw groove, to deviate from.When screw threads on earth or take place when stuck, stall can be because of taking place above its driving moment in automatic screwdriver, sends signal then and cuts off power source.
2, on said protecgulum 7, fixed a guiding and cushioned cylinder body 8 to be threaded, when the downward feeding of piston type housing 4, guide piston 9 upwards slides in guiding buffering cylinder body 8 relatively, resets with guiding back-moving spring 10, and these elements have constituted feeding guide mechanism of the present invention.
3, in said guide piston 9 lower ends one cylindrical lumen pore is arranged, a nose suspension type sliding sleeve 11(is housed in lumen pore sees Fig. 2), nose suspension type sliding sleeve 11 middle parts evenly hollow out at interval, in order to avoid hinder the gas circuit air inlet of bleeding.The top convex shoulder 25 of nose suspension type sliding sleeve is on the lower end annular bearing surface that is supported in guide piston 9 under the effect of stage clip 13.Nose suspension type sliding sleeve 11 tops have the bleeding point 12 of the gas circuit of connecting with vavuum pump of bleeding on guide piston 9, suck the required vacuum of screw in order to formation.The inner and outer diameter of nose suspension type sliding sleeve 11 lower ends equals to screw in small size and large size head of screw diameter respectively.When screwing small size screw, head of screw is inhaled in the endoporus of nose suspension type sliding sleeve 11; When screwing the large size screw, under the effect of vavuum pump air pressure, nose suspension type sliding sleeve 11 is upwards oppressed stage clip 13 together with head of screw and is slided relatively in the cylindrical lumen pore of guide piston 9, and head of screw is inhaled in the cylindrical lumen pore.These elements have constituted the strength locking device applicable to two kinds of specifications (for example M3 and M5) screw of the present invention.If outside the nose suspension type sliding sleeve, overlap a nose suspension type sliding sleeve again, stage clip of closed assembly again between the top convex shoulder 25 of two nose suspension type sliding sleeves, then the strength locking device goes for the screw of three kinds of specifications.The screw that is used for more kinds of specifications also can be as the method infusion.
4, for said automatic screwdriver be the occasion of electronic automatic screwdriver, can install a slidingtype current-collector between shell 5 and piston type housing 4 is used for adorning a feed distance detector and being used to measure the feed distance (see figure 3) to the automatic screwdriver power supply.The movable contact 14 of the movable contact 18 of slidingtype current-collector and feed distance detector can be fixed on the shell 5 and the stationary contact spot film 15 of slidingtype current-collector and the stationary contact spot film 16 of feed distance detector are fixed on the piston type cylinder body 4, but also opposed.The stationary contact spot film 16 of feed distance detector is even spaced sheet metal, along with the variation of feed distance, can constantly send signal to measure feed distance.
5, in order to improve reliability and automatic control desired signal to be provided, can install a vacuum detector (see figure 4) from bleeding gas circuit bleeding point 12 to the gas circuit of bleeding of vavuum pump.Vacuum detector is made up of shell 20, piston 21, contact switch 22, back-moving spring 23 and detection tracheae 26 etc.When screw is sucked and when blocking air inlet, piston 21 is attracted to left movement and contact switch 22 is thrown off, send the signal of telecommunication that an expression screw has sucked.Said detection tracheae 26 ports are inserted into bleeding point 12 in the gas circuit tracheae 24 between the vavuum pump, and opening is met to airflow direction, thereby strengthen the sensitivity that vacuum detector changes vacuum in the gas circuit of bleeding.
Can be found out that by above-mentioned technical characterictic the present invention compares to existing automatic operation automatic screwdriver obvious advantage. The present invention is simple in structure, compact dimensions, be easy to approach and be arranged in the screw of narrow space and be widely used, and the screw applicable to two or more specifications screws, the reliability height not only can be used for being screwed down screw, also can be used for upwards or adipping screws screw. The present invention is applicable on the roboticized assembling line, is loaded on robot or arm end and carries out work, also can be used on other automatic production lines and manually-operated production line on. Thereby have broad application prospects.
Claims (3)
1, a kind of strength sucks pneumatic feeding automatic screwdriver, form by electronic or pneumatic automatic screwdriver 1, protecgulum 7, bonnet 2, piston type housing 4, shell 5, feeding back-moving spring 6, air inlet 3, guiding buffering cylinder body 8, guide piston 9, guiding back-moving spring 10, nose suspension type sliding sleeve 11, bleeding point 12, stage clip 13 etc., it is characterized in that
-said automatic screwdriver 1 is fixed in bonnet 2 and the piston type housing 4 by screw, and the piston type housing is done feed motion downwards under the pressure-air effect of being sent into by air inlet 3 in shell 5, reset with feeding back-moving spring 6,
Fix a guiding buffering cylinder body 8 with screw thread on the-said protecgulum 7, when the downward feeding of piston type housing 4, guide piston 9 upwards slides in guiding buffering cylinder body 8 relatively, reset with the back-moving spring 10 that leads,
In the cylindrical lumen pore of-said guide piston 9 lower ends, a nose suspension type sliding sleeve 11 is housed, nose suspension type sliding sleeve 11 middle parts evenly hollow out at interval, in order to avoid hinder the gas circuit air inlet of bleeding, it with top convex shoulder 25 on the lower end annular bearing surface that is supported in guide piston 9 under the effect of stage clip 13, be provided with the bleeding point of connecting with vavuum pump 12 on nose suspension type sliding sleeve 11 tops, suck the required vacuum of screw in order to formation, the inner and outer diameter of nose suspension type sliding sleeve 11 lower ends equals the trumpet and the large size head of screw diameter that will screw in respectively, when revolving small size screw, head of screw is inhaled in the endoporus of nose suspension type sliding sleeve 11, when revolving the large size screw, under the effect of air pressure, nose suspension type sliding sleeve 11 is upwards oppressed stage clip 13 and is slided relatively in the cylindrical lumen pore of guide piston 9, and head of screw is inhaled in the cylindrical lumen pore.
2, strength as claimed in claim 1 sucks pneumatic feeding automatic screwdriver, it is characterized in that, the slidingtype current-collector and the feed distance detector that are used for to electronic automatic screwdriver power supply are housed between said shell 5 and piston type housing 4, the movable contact 18 of slidingtype current-collector and the movable contact 14 of feed distance detector are fixed on the shell 5, and the stationary contact spot film 16 of the stationary contact spot film 15 of slidingtype current-collector and feed distance detector is fixed on the piston type housing 4, the stationary contact spot film 16 of feed distance detector is even spaced sheet metal, along with the variation of feed distance, can constantly send signal and measure feed distance.
3, as claim 1,2 described strengths suck pneumatic feeding automatic screwdriver, it is characterized in that, at said bleeding point 12 in the gas circuit of bleeding of vavuum pump, vacuum detector is housed, it is by shell 20, piston 21, contact switch 22, back-moving spring 23 and detection tracheae 26 compositions such as grade, when screw is sucked and is blocked air inlet, piston 21 is attracted to left movement and contact switch 22 is thrown off, send the signal of telecommunication that an expression screw has sucked, said detection tracheae 26 ports are inserted into bleeding point 12 in the tracheae 24 of the gas circuit of vavuum pump, and opening is in face of airflow direction, thereby have strengthened the sensitivity that vacuum detector changes vacuum in the gas circuit of bleeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207078 CN2068894U (en) | 1990-03-29 | 1990-03-29 | Automatic screwdriver with pneumatic press-on and feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207078 CN2068894U (en) | 1990-03-29 | 1990-03-29 | Automatic screwdriver with pneumatic press-on and feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2068894U true CN2068894U (en) | 1991-01-09 |
Family
ID=4887550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90207078 Withdrawn CN2068894U (en) | 1990-03-29 | 1990-03-29 | Automatic screwdriver with pneumatic press-on and feed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2068894U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676072B (en) * | 2008-09-08 | 2013-01-16 | 车王电子股份有限公司 | Screw automatic feeding device of electric screw driver |
| CN103934786A (en) * | 2014-05-15 | 2014-07-23 | 歌尔声学股份有限公司 | Air-breathing type electric screw driver |
| CN104057581A (en) * | 2013-03-21 | 2014-09-24 | 汉达精密电子(昆山)有限公司 | Intra-mode automatic nut assembling structure |
| CN104162874A (en) * | 2014-08-08 | 2014-11-26 | 苏州全丰精密机械有限公司 | Vacuum air suction head and vacuum adsorption device |
| CN105397702A (en) * | 2014-09-09 | 2016-03-16 | 松下知识产权经营株式会社 | Bolt fastening machine, adsorption tube for bolt fastening machine and bolt fastening method |
-
1990
- 1990-03-29 CN CN 90207078 patent/CN2068894U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676072B (en) * | 2008-09-08 | 2013-01-16 | 车王电子股份有限公司 | Screw automatic feeding device of electric screw driver |
| CN104057581A (en) * | 2013-03-21 | 2014-09-24 | 汉达精密电子(昆山)有限公司 | Intra-mode automatic nut assembling structure |
| CN103934786A (en) * | 2014-05-15 | 2014-07-23 | 歌尔声学股份有限公司 | Air-breathing type electric screw driver |
| CN104162874A (en) * | 2014-08-08 | 2014-11-26 | 苏州全丰精密机械有限公司 | Vacuum air suction head and vacuum adsorption device |
| CN105397702A (en) * | 2014-09-09 | 2016-03-16 | 松下知识产权经营株式会社 | Bolt fastening machine, adsorption tube for bolt fastening machine and bolt fastening method |
| CN105397702B (en) * | 2014-09-09 | 2017-06-16 | 松下知识产权经营株式会社 | Screw fastening machine, the adsorption tube of screw fastening machine and screw fastening method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |