CN2135424Y

CN2135424Y - Automatic screw driving machine

Info

Publication number: CN2135424Y
Application number: CN 92231539
Authority: CN
Inventors: 王勇彪; 许立斌
Original assignee: BONGFU INDUSTRY AUTOMATIZATION INST AUHUI PROV
Current assignee: BONGFU INDUSTRY AUTOMATIZATION INST AUHUI PROV
Priority date: 1992-08-25
Filing date: 1992-08-25
Publication date: 1993-06-09
Anticipated expiration: 2002-08-25

Abstract

The utility model is composed of hoppers, guide pin grooves, an air cylinder, a nail puller, a blew nail implement, a flexible hose, screw chucks and screwdrivers. The hopper bottom is provided with the chain riveting grooves, and the nail puller is provided with a fall nail ostium. The air cylinder drives the hoppers to reciprocate around the shaft and causes the screws in the hoppers to fall from the chain riveting grooves, the guide pin grooves to the fall nail ostium, and the logic control gas path controls the nail puller to cause one nail to fall into the blew nail heat exchanger and blew to magnetic clamps and rotates to the workpieces by screwdriver. The hand-hold screwdriver has the advantages of light weight, small volume, and one-hand operation, which is suitable for the industry stream line.

Description

Automatic screw driving machine

The automatic screw tightening machine relates to a kind of portable power tools that screws screw.

At present, screw screw and generally adopt the electronic or pneumatic tool that revolves on industrial flow production line, though this class power revolves tool advantage of simple structure is arranged, but still need to hold nail by hand, like this, operating efficiency is not very good, and the workman operates inconvenience.Chinese patent 90218949.2 discloses a kind of " screw automatic supplier ", propping up charging automatics, a screw room seat and a screwdriver fixed mount by a list forms, with a motor drivening rod, get the material slideway and in the screw apotheca, get and draw screw and make, and only make in the slideway through one single feed arrangement that a screw falls within screw room seat and by two clamping reeds location, utilizes the electronic or pneumatic tool that revolves on the support to screw in workpiece again.This device weak point is: since whole device with revolve tool and be linked to be an integral body, add the whole screws in the screw apotheca, its gross weight is well imagined, people for a few hours continuous operation on the flowing water active line, it is gruelling that the instrument of hand-held this weight repeats rotary screw, whole device volume specifically amasss increase relatively than single revolving simultaneously, is unfavorable for the construction of small space workpiece.

The purpose of this utility model is to propose a kind of production-lines operation that is applicable to, the workman operates the low screw-driving machine of labour intensity, the operator only needs one hand to manage one to revolve tool, get final product complete operation, revolve tool and only need gain in weight about 0.2 kilogram, only revolve former that size slightly increases on the tool length direction, can on the small space workpiece, construct.

The utility model mainly by body, revolve tool and a control module 10 is formed.Revolve the tool front end screw chuck is housed, be connected by a flexible pipe 9 between body and the screw chuck.Body by frame 4, hopper 2, guide nail slot 3, dial nail device 7, blow nail device 8 and form, hopper 2 is hinged on the frame 4, be hinged with cylinder 11 between hopper 2 bottoms and the frame 4, strut 5 and slideway 6 are set between frame 4 biside plates, guide nail slot 3 raises the position of adjusting by pressing plate at strut 5, dial nail device 7 and be located on the slideway 6, blow nail device 8 and be located at slideway 6 belows.Hopper 2 bottom surfaces are provided with nail-arranging slot 1, nail-arranging slot 1 is terminal identical with guide nail slot 3 head ends, dialling nail device 7 is made up of plunger 13 and group ailhead 16, dial ailhead 16 and be provided with the vertical nail mouth 15 that falls, and can on plunger 13, horizontally slip, dial ailhead 16 when an extreme position, nail mouthful 15 upper ends and guide nail slot 3 terminal coincideing fall, simultaneously, sealing is blocked and is blown nail and advance nail mouthful on the device 8, when sliding to another extreme position, the tone of advancing to follow closely that falls nail mouthful 15 lower ends and blow on the nail device 8 is closed, simultaneously, block guide nail slot 3 ends blow nail advancing nail mouthful, go out nail and mouthful constitute three-way pipes with gas port 12 on the device 8.Dial nail, blow nail control by sampling gas circuit, feedback gas circuit, dial the nail gas circuit, blow the nail gas circuit and constitute, the sampling gas circuit by or door 1H and be that a 1S constitutes, the feedback gas circuit by pulse valve 1M and or the door 1H constitute, dialling the nail gas circuit is made of the left and right sides air cavity BG that is a 3S, not gate 1F and group nail device 7, blow the nail gas circuit by check valve 1D, air-capacitor 1R, not gate 3F, choke valve 1J be that a 5S constitutes, the input of sampling gas circuit with revolve tool and be communicated with, output is communicated with group nail gas circuit and the input that blows the nail gas circuit, and the output mouthpiece CK that blows the nail gas circuit is communicated with gas port 12.The screw chuck by cutting ferrule 17, stage clip 18, sliding sleeve 19, advance nail mouthfuls 20, magnetic chuck 21, flexure strip 22 and constitute, cutting ferrule 17 internal diameters and revolve matched in clearance between tool 23 threaded engagement, cutting ferrule 17 external diameters and sliding sleeve 19 internal diameters, stage clip 18 withstands between cutting ferrule 17 end faces and sliding sleeve 19 bottom surfaces, advance nail mouthfuls 20 and be inclined in sliding sleeve 19 middle parts and be communicated with inner chamber, two magnetic chucks 21 are fastened on sliding sleeve 19 bottoms by flexure strip 22.Flexible pipe 9 is to be connected nail mouth into 20 and to blow the going out on the nail mouthful of nail device 8.Dial ailhead 16 both sides and be provided with not connected air cavity BG, two plungers 13 are fixed on the slideway 6.Adjust the groove width location between two film trap body and function securing members of nail-arranging slot 1 and hopper 2 base plates, two cell bodies of guide nail slot 3 are adjusted the groove width location with securing member.

Description of drawings:

Fig. 1: embodiment housing construction schematic diagram;

The A of Fig. 2: Fig. 1 is to view;

Fig. 3: screw chuck structure figure;

Fig. 4: dial, blow the nail pneumatic diagram;

Fig. 5: cylinder moves back and forth pneumatic diagram.

Be described further below in conjunction with embodiment of the present utility model and accompanying drawing:

Referring to Fig. 1, Fig. 2, hopper 2 is made reciprocally swinging around axle under the effect of cylinder 11, guide nail slot 3 is located on strut 5, conduit and nail-arranging slot 1 are coincide in same vertical plane, dial nail device 7 and blow nail device 8 and all be fixed on the slideway 6, dialling nail device 7 is fixed on the slideway 6 by its plunger 13, two slip extreme positions dialling ailhead 16 are satisfied: during an extreme position, nail mouthful 15 upper ends and guide nail slot 3 terminal coincideing fall, that simultaneously, dials that ailhead 16 bottom shutoff blow nail device 8 advances nail mouthful; During another extreme position, close with the tone of advancing to follow closely of blowing nail device 8 nail mouthful 15 lower ends that fall, and dials ailhead 16 upper ends simultaneously and stop up guide nail slot 3 ends.The hopper 2 of reciprocally swinging makes screw enter nail-arranging slot 1 in an orderly manner, slide on the guide nail slot 3, when dialling ailhead 16 actions, only a screw is transported to another extreme position by slip, at this moment screw directly drops down onto from nail mouthful 15 upper ends that fall and blows nail device 8, blow nail device 8 will follow closely through flexible pipe 9 blow toward the screw chuck advance to follow closely mouth 20, be clamped at last on the magnetic chuck 21, like this, can make progress, on side or workpiece downwards, revolve and followed closely.According to the screw of different size, can adjust the width of nail-arranging slot 1 and guide nail slot 3, blow nail device 8, flexible pipe 9 and the screw chuck of changing corresponding specification get final product.

Referring to Fig. 3, be magnetic chuck 21 clampings by advancing nail mouthful 20 screws that blow into, depress and revolve tool 23 and can open the cyclone nail, when depressing, sliding sleeve 19 slides stage clip 18 pressurizeds rotationally with cutting ferrule 17 relative nothings, after revolving nail and finishing, the elastic force of pressured spring 18 makes and revolves tool and set back.

Referring to Fig. 4, when revolving that tool is pneumatic to revolve last nail, the gas signal to or the door 1H, be that a 1S, 3S all open, BG moves right, and promptly finishes in succession and dials nail, falls to following closely action, another road gas is by check valve 1D, because of not gate 3F closes to air-capacitor 1R inflation, Third Road gas feeds back to or door 1H through pulse valve 1M, and pulse width transfers to and satisfies air-capacitor 1R and be full of to finish with BG and dial nail, fall to following closely required time and get final product; After revolving nail and finishing, revolve tool and set back, the gas blackout is that a 1S, 3S close, not gate 1F opens, BG is to left movement, and not gate 3F opens, and it is that a 5S opens that the gas of air-capacitor 1R makes through not gate 3F, mouthpiece CK is to gas port 12 air feed, choke valve 1J is used to adjust gassing time, and like this, the nail that fell is just now blown to magnetic chuck 21, when revolving this nail, another working cycles begins.

Referring to Fig. 5, the reciprocating motion control of cylinder 11 is made up of not gate 5F, 6F, bistable unit 1SW and one-way throttle valve 1DJ, 2DJ, this is a prior art gas circuit, 11 reciprocating cycles of cylinder and one-way time can set up by one-way throttle valve 1DJ, 2DJ, after switch 1K closure, cylinder 11 just can move back and forth by the time of 1DJ, 2DJ setting.

The logic element that moves back and forth control and blow, dial in the nail control gas circuit all is combined in the control module 10, and control module is fixed in the body.

By above explanation as seen, the utility model only needs one hand to manage and revolves tool in use, revolves the weight that tool has only increased a screw chuck, and volume existing " screw automatic supplier " little, be beneficial to narrow and small workpiece construction, defeated nail and to revolve the nail cycle short.

Claims

1, automatic screw tightening machine, mainly by body, revolve tool and a control module of being made up of the logic control element is formed, it is characterized in that:

(1) revolve the tool front end screw chuck is housed, body and screw chuck interconnect by flexible pipe 9;

(2) body by frame 4, hopper 2, guide nail slot 3, dial nail device 7, blow nail device 8 and form, hopper 2 is hinged on the frame 4, be hinged with cylinder 11 between hopper 2 bottoms and the frame 4, strut 5 and slideway 6 are set between frame 4 biside plates, guide nail slot 3 raises the position of adjusting by pressing plate at strut 5, dial nail device 7 and be located on the slideway 6, blow nail device 8 and be located at slideway 6 belows;

(3) hopper 2 base plates are provided with nail-arranging slot 1, nail-arranging slot 1 is terminal identical with guide nail slot 3 head ends, dialling nail device 7 is made up of plunger 13 and group ailhead 16, dial ailhead 16 and be provided with the vertical nail mouth 15 that falls, and can on plunger 13, horizontally slip, dial ailhead 16 when an extreme position, nail mouthful 15 upper ends and guide nail slot 3 terminal coincideing fall, simultaneously, sealing is blocked and is blown nail and advance nail mouthful on the device 8, when sliding to another extreme position, the tone of advancing to follow closely that falls nail mouthful 15 lower ends and blow on the nail device 8 is closed, simultaneously, block guide nail slot 3 ends blow nail and advance nail mouthful on the device 8, go out the nail mouth and constitute three-way pipes with gas port 12;

(4) nail of dialling gas circuit is arranged in the control module 10 and blow the nail gas circuit, dialling the nail gas circuit is made of the left and right sides air cavity BG that is a 3S, not gate 1F and group nail device 7, blow the nail gas circuit by check valve 1D, air-capacitor 1R, not gate 3F, choke valve 1J be that a 5S constitutes, dial the nail gas circuit and blow the input and the gas signal communication of following closely gas circuit, output is respectively air cavity BG and mouthpiece CK;

(5) the screw chuck by cutting ferrule 17, stage clip 18, sliding sleeve 19, advance nail mouthfuls 20, magnetic chuck 21, flexure strip 22 and constitute, cutting ferrule 17 internal diameters and revolve matched in clearance between tool 23 threaded engagement, cutting ferrule 17 external diameters and sliding sleeve 19 internal diameters, stage clip 18 withstands between cutting ferrule 17 end faces and sliding sleeve 19 bottom surfaces, advance nail mouthfuls 20 and be inclined in sliding sleeve 19 middle parts and be communicated with inner chamber, two magnetic chucks 21 are fastened on sliding sleeve 19 bottoms by flexure strip 22.

2, automatic screw tightening machine according to claim 1 is characterized in that: flexible pipe 9 is to be connected nail mouth into 20 and to blow the going out on the nail mouthful of nail device 8.

3, automatic screw tightening machine according to claim 1 is characterized in that: dial ailhead 16 both sides and be provided with not connected air cavity BG, two plungers 13 are fixed on the slideway 6.

4, automatic screw tightening machine according to claim 1 is characterized in that: adjust the groove width location between two film trap body and function securing members of nail-arranging slot 1 and hopper 2 base plates, two cell bodies of guide nail slot 3 are adjusted the groove width location with securing member.