CN203156656U - Automatic clutch screw gun - Google Patents

Automatic clutch screw gun Download PDF

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Publication number
CN203156656U
CN203156656U CN 201320140238 CN201320140238U CN203156656U CN 203156656 U CN203156656 U CN 203156656U CN 201320140238 CN201320140238 CN 201320140238 CN 201320140238 U CN201320140238 U CN 201320140238U CN 203156656 U CN203156656 U CN 203156656U
Authority
CN
China
Prior art keywords
clutch
output shaft
screw
gear wheel
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320140238
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Chinese (zh)
Inventor
金克勤
童晓华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dian Chuan Industrial Design Co Ltd
Original Assignee
Zhejiang Dian Chuan Industrial Design Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Dian Chuan Industrial Design Co Ltd filed Critical Zhejiang Dian Chuan Industrial Design Co Ltd
Priority to CN 201320140238 priority Critical patent/CN203156656U/en
Application granted granted Critical
Publication of CN203156656U publication Critical patent/CN203156656U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an automatic clutch screw gun which comprises screws (1), a screw conveyer belt (2), a screwdriver (3), an automatic screw delivery device (4), a machine case (17), a switch (16), a motor (21), a clutch mechanism and a reducing mechanism, wherein the clutch mechanism comprises a clutch sleeve (7), a cutch output shaft (8), a clutch spring (10), the clutch sleeve (7) is fixedly arranged on the machine case (17), the clutch output shaft (8) is arranged on the clutch sleeve (7), the screwdriver (4) penetrates through the screw delivery device (4) and is mounted on the clutch output shaft (8), the clutch output shaft (8) is sleeved on a three-level output shaft (14) through a needle bearing (9) and is pushed away by the clutch spring (10), and end face helical teeth (11) which are meshed with each other are arranged on the end face of a rack wheel (12) of the three-level output shaft (14) and on the end face of the clutch output shaft (8) respectively. The above structure is adopted, and thus the automatic clutch screw gun has the advantages of being simple and reasonable in structure, safe ad reliable to use, large in transmission torque, long in service life and the like. Further, the screwdriver does not rotate when the automatic clutch screw gun is non-loaded or overloaded.

Description

Automatic clutch screw rifle
Technical field
The utility model relates to a kind of hand electric and send the automatic clutch screw rifle that oncomelania nail rifle, particularly a kind of zero load and overload can both automatic clutch automatically.
Background technology
At present, automatically the oncomelania that send of known technology is followed closely rifle, all criticized by the electric screw of traditional hand held electric drill repacking and install automatic nail feeder additional and form, because in the traditional structure of hand held electric drill, be by gear between motor and the output shaft, rigid structural member such as key are formed by connecting, so there are two big class problems in the electronic oncomelania silk rifle that send automatically of this class, the one, as long as electric motor starting, screwdriver is and then rotation just, but the screw rifle is not at stubborn screw in the time of many, and screwdriver is and then motor idle running just, so not only occurs unexpected easily, have potential safety hazard, and relevant accessory is worn and torn for no reason easily also; The 2nd, when screw was screwed onto the end, because screwdriver and motor are to be rigidly connected, the screw rifle can produce very big torsion, and this torsion needs the operator to come balance to offset, do not notice that slightly the operator is just sprained easily, break the cross recess of screw afterbody simultaneously easily.For this reason, many manufacturers and knowledgeable people research and develop at the problems referred to above, but so far solution are not preferably arranged as yet.
Summary of the invention
Automatically send oncomelania nail rifle existing the problems referred to above for overcoming existing hand electric, the purpose of this utility model provide a kind of simple and reasonable, safe and reliable, transmit big, the unloaded and non-rotary automatic clutch screw of the overload screwdriver rifle of moment of torsion.
The utility model solves the problems of the technologies described above the technical scheme that adopts, it comprises screw, the screw conveyer belt, screwdriver, automatic nail feeder, casing, switch, motor, clutch and transmission speed reducer structure, screw is installed on the automatic nail feeder by the screw conveyer belt, described clutch comprises clutch sleeve, the clutch output shaft, the clutch spring, clutch sleeve is fixed on the casing, the clutch output shaft is arranged on the clutch sleeve, screwdriver passes automatic nail feeder and is installed on the clutch output shaft, the clutch output shaft is enclosed within by needle bearing on three grades of output shafts of transmission speed reducer structure and by the clutch spring and backs down, and being respectively equipped with on the gear wheel end face on three grades of output shafts and the clutch output shaft end face can intermeshing end face helical teeth.
Described transmission speed reducer structure comprises bevel pinion, bevel gear wheel, secondary center tooth axle, gear wheel, three grades of output shafts, bevel pinion is fixed on the motor output shaft, bevel gear wheel is fixed on the secondary center tooth axle, secondary center tooth axle is arranged on the casing by bearing, one end of three grades of output shafts is arranged on the casing by plane bearing and oiliness bearing, the other end is arranged on the clutch output shaft, bevel pinion and bevel gear wheel engagement, secondary center tooth axle and gear wheel engagement.
Described clutch output shaft is provided with spacing jump ring.
After adopting said structure, following advantage and effect are compared with prior art arranged: when the screw rifle is not used to twist screw, screwdriver does not also contact with screw, even motor is activated, the end face helical teeth of clutch output shaft is not subjected to the promotion of external force and is headed on by built-in clutch spring, be in released state with the gear wheel end face helical teeth of transmission speed reducer structure, the torsion of motor can't be transferred on the clutch output shaft, the clutch output shaft can not dally along with machine operation, thereby solved the potential safety hazard that screwdriver idle running brings, also reduced the wearing and tearing for no reason of related accessory simultaneously.Only begin to twist screw at the screw rifle, after the clutch output shaft was returned a segment distance by screw toward interior top by screwdriver, clutch output shaft end face helical teeth just can be meshed with gear wheel end face tooth, begins to transmit torsion.As long as the pressure that is applied on the screw rifle of operator is cancelled, the clutch output shaft will be under the promotion of built-in clutch spring be separated with the gear wheel of transmission speed reducer structure, thereby has cut off the transmission of torsion, and screwdriver has just stopped rotation.After screw is screwed onto the end, the screw rifle can produce excessive torsion, and this moment, because the clutch output shaft utilizes the end face pitch face to transmit power, when limiting value that the torsion that is transmitted can transmit greater than it, originally intermeshing end face pitch face can produce to slide and separate, and has cut off the transmission of torsion, thereby can avoid the cross recess spraining the operator or break the screw afterbody, guarantee to use safety.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Structural representation when Fig. 2 begins to twist screw for the utility model.
Structural representation when Fig. 3 is screwed to the end for the utility model screw.
1 screw wherein, 2 screw conveyer belts, 3 screwdrivers, 4 automatic nail feeders, 5 spacing jump rings, 6 steel balls, 7 clutch sleeves, 8 clutch output shafts, 9 needle bearings, 10 clutch springs, 11 end face helical teeth, 12 gear wheels, 13 plane bearings, 14 3 grades of output shafts, 15 oiliness bearings, 16 switches, 17 casings, 18 secondary center tooth axles, 19 bevel gear wheels, 20 bevel pinions, 21 motors, 22 fixtures.
The specific embodiment
Shown in Figure 1, specific embodiments for a kind of automatic clutch screw of the utility model rifle, it comprises screw 1, screw conveyer belt 2, screwdriver 3, automatic nail feeder 4, casing 17, switch 16, motor 21, clutch and transmission speed reducer structure, screw 1 is installed on the automatic nail feeder 4 by screw conveyer belt 2, described clutch comprises clutch sleeve 7, clutch output shaft 8, clutch spring 10, clutch sleeve 7 is fixed on the casing 17, clutch output shaft 8 can be arranged on the clutch sleeve 7 with moving axially, clutch output shaft 8 one ends are spacing by spacing jump ring 5, the other end is spacing by end face helical teeth 11, screwdriver 3 passes on the interior hexagonal square hole that automatic nail feeder 4 is installed in clutch output shaft 8, and be stuck on the clutch output shaft 8 by the mating reaction of steel ball 6 and clutch sleeve 7, clutch output shaft 8 and three grades of output shafts 14 are arranged on the same axis, clutch output shaft 8 is enclosed within by needle bearing 9 on three grades of output shafts 14 of transmission speed reducer structure and by clutch spring 10 and backs down, needle bearing 9 is fixed on the clutch output shaft 8, clutch output shaft 8 can move axially by relative three grades of output shafts 14, three grades of output shafts 14 can rotate relative to clutch output shaft 8, and being respectively equipped with on gear wheel 12 end faces on three grades of output shafts 14 and clutch output shaft 8 end faces can intermeshing end face helical teeth 11.
Described transmission speed reducer structure comprises bevel pinion 20, bevel gear wheel 19, secondary center tooth axle 18, gear wheel 12, three grades of output shafts 14, bevel pinion 20 is fixed on motor 21 output shafts, bevel gear wheel 19 is fixed on the secondary center tooth axle 18, secondary center tooth axle 18 is arranged on the casing 17 by bearing, one end of three grades of output shafts 14 is arranged on the casing 17 by plane bearing 13 and oiliness bearing 15, the other end is arranged on the clutch output shaft 8, bevel pinion 20 and bevel gear wheel 19 engagements, secondary center tooth axle 18 and gear wheel 12 engagements, during machine operation, motor 21 drives bevel gear wheel 19 rotations by bevel pinion 20 and realizes the one-level deceleration, bevel gear wheel 19 drives gear wheel 12 rotations by secondary center tooth axle 18 and realizes double reduction, increases the outputting torsion of three grades of output shafts 14.
When screw rifle of the present utility model does not begin to twist screw, as shown in Figure 1, the head of automatic nail feeder 4 does not push up to fixture 22, so automatic nail feeder 4 is without any displacement, the top is not to screwdriver 3 too for screw 1 afterbody, and the end face helical teeth on the gear wheel 12 and the end face helical teeth on the clutch output shaft 8 are headed on by each other clutch spring 10 and be in released state; Open switch 16 this moment, and motor 21 drives bevel gear wheels 19 by bevel pinion 20, and bevel gear wheel 19 drives gear wheels 12 and three grades of output shafts 14 idle running by secondary center tooth axle 18, and clutch output shaft 8 and screwdriver 3 are static does not work.
Screw rifle of the present utility model comes into effect when twisting screw, as shown in Figure 2, the head of automatic nail feeder 4 pushes up on the fixture 22, automatic nail feeder 4 drives screw 1 and moves inward together, the afterbody of screw 1 withstands on the screwdriver 3, move inward together and compress clutch spring 10 and screwdriver 3 heads on clutch output shaft 8 equally under the roof pressure of screw 1, when the end face helical teeth of the end face helical teeth of clutch output shaft 8 and gear wheel 12 was meshing with each other, screwdriver 3 and clutch output shaft 8 just stopped to move inward; At this moment, motor 21 drives bevel gear wheel 19 by bevel pinion 20, and bevel gear wheel 19 drives gear wheel 12 by secondary center tooth axle 18 and 14, three grades of output shafts 14 of three grades of output shafts are delivered to mechanical energy on the screwdriver 3 by clutch output shaft 8, and turns screw 1.
When screw rifle of the present utility model is screwed to the end with screw 1, as shown in Figure 3, the torsion of twisting screw 1 constantly increases, when input torsion reached the maximum engagement power limit of clutch output shaft 8 end face helical teeth and gear wheel 12 end face helical teeth, clutch output shaft 8 end face helical teeth began to slide with gear wheel 12 end face helical teeth and separate; At this moment, motor 21 drives bevel gear wheel 19 by bevel pinion 20, bevel gear wheel 19 passes to gear wheel 12 and three grades of output shafts 14 by secondary center tooth axle 18 with mechanical energy, but because having slided with gear wheel 12, separates clutch output shaft 8, three grades of output shafts 14 can't pass to clutch output shaft 8 with mechanical energy and stop the rotation, and screwdriver 3 also stops the rotation thereupon and can't continue to turn screw 1.
The above; be an embodiment of the present utility model; be not that the utility model is made any pro forma restriction; do not breaking away from the technical solution of the utility model basis; the simple modification of having done, equivalent variations or modification all fall into protection domain of the present utility model and key in technical field herein and describe paragraph.

Claims (3)

1. automatic clutch screw rifle, comprise screw (1), screw conveyer belt (2), screwdriver (3), automatic nail feeder (4), casing (17), switch (16), motor (21), clutch and transmission speed reducer structure, screw (1) is installed on the automatic nail feeder (4) by screw conveyer belt (2), it is characterized in that: described clutch comprises clutch sleeve (7), clutch output shaft (8), clutch spring (10), clutch sleeve (7) is fixed on the casing (17), clutch output shaft (8) is arranged on the clutch sleeve (7), screwdriver (3) passes automatic nail feeder (4) and is installed on the clutch output shaft (8), clutch output shaft (8) is gone up and is backed down by clutch spring (10) by three grades of output shafts (14) that needle bearing (9) is enclosed within the transmission speed reducer structure, and being respectively equipped with on gear wheel (12) end face on three grades of output shafts (14) and clutch output shaft (8) end face can intermeshing end face helical teeth (11).
2. automatic clutch screw rifle according to claim 1, it is characterized in that: described transmission speed reducer structure comprises bevel pinion (20), bevel gear wheel (19), secondary center tooth axle (18), gear wheel (12), three grades of output shafts (14), bevel pinion (20) is fixed on motor (21) output shaft, bevel gear wheel (19) is fixed on the secondary center tooth axle (18), secondary center tooth axle (18) is arranged on the casing (17) by bearing, one end of three grades of output shafts (14) is arranged on the casing (17) by plane bearing (13) and oiliness bearing (15), the other end is arranged on the clutch output shaft (8), bevel pinion (20) and bevel gear wheel (19) engagement, secondary center tooth axle (18) and gear wheel (12) engagement.
3. automatic clutch screw rifle according to claim 1 and 2, it is characterized in that: described clutch output shaft (8) is provided with spacing jump ring (5).
CN 201320140238 2013-03-26 2013-03-26 Automatic clutch screw gun Expired - Fee Related CN203156656U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320140238 CN203156656U (en) 2013-03-26 2013-03-26 Automatic clutch screw gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320140238 CN203156656U (en) 2013-03-26 2013-03-26 Automatic clutch screw gun

Publications (1)

Publication Number Publication Date
CN203156656U true CN203156656U (en) 2013-08-28

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ID=49017879

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320140238 Expired - Fee Related CN203156656U (en) 2013-03-26 2013-03-26 Automatic clutch screw gun

Country Status (1)

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CN (1) CN203156656U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188967A (en) * 2018-03-28 2018-06-22 泉州臻美智能科技有限公司 A kind of electric screw driver with zero offset capability
TWI642519B (en) * 2018-06-22 2018-12-01 佑泰工業有限公司 Screw-feeding device of screw gun
CN110000591A (en) * 2019-05-17 2019-07-12 福建成和光电科技有限公司 A kind of drilling-tapping process equipment
CN110509218A (en) * 2019-09-23 2019-11-29 苏州市职业大学 A kind of screw gun

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188967A (en) * 2018-03-28 2018-06-22 泉州臻美智能科技有限公司 A kind of electric screw driver with zero offset capability
CN108188967B (en) * 2018-03-28 2019-11-15 蔡会多 A kind of electric screw driver with zero offset capability
TWI642519B (en) * 2018-06-22 2018-12-01 佑泰工業有限公司 Screw-feeding device of screw gun
CN110000591A (en) * 2019-05-17 2019-07-12 福建成和光电科技有限公司 A kind of drilling-tapping process equipment
CN110509218A (en) * 2019-09-23 2019-11-29 苏州市职业大学 A kind of screw gun
CN110509218B (en) * 2019-09-23 2020-11-27 苏州市职业大学 Screw gun

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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: 20130828

Termination date: 20170326

CF01 Termination of patent right due to non-payment of annual fee