CN203125423U

CN203125423U - Miniature torsion opener

Info

Publication number: CN203125423U
Application number: CN 201320151838
Authority: CN
Inventors: 刘明记; ***
Original assignee: XIAMEN TONGFENG MACHINERY CO Ltd
Current assignee: XIAMEN TONGFENG MACHINERY CO Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2013-08-14
Anticipated expiration: 2023-03-29

Abstract

The utility model discloses a miniature torsion opener. The miniature torsion opener comprises a torsion drive sliding mechanism, a torsion adjusting part and a torsion displaying part. The miniature torsion opener is characterized in that the torsion drive sliding mechanism comprises a torsion drive body, and a steel ball rolling groove is formed on the end face of the torsion drive body. By adopting the technical scheme, the steel ball rolling groove is pre-embedded on the torsion drive body of the torsion opener, the contact surfaces of steel balls are increased when the steel balls roll due to the torsion, the unit stress is reduced, when the torsion opener is frequently used, and the frictional coefficient is greatly reduced, so that the service life of the torsion drive opener is obviously prolonged.

Description

Miniature torsion screwdriver

Technical field

The utility model relates to the torsion screwdriver field, refers in particular to a kind of miniature torsion screwdriver.

Background technology

The torque value skid formula that can preset torsion screwdriver in the market, be ball type or ratchet ratchet-type, and in frequent the use, frequent friction between ball base and torsion driving body, can form flute mark at driving body, cause actual set moment and output torque value error bigger, influence the output accuracy of torsion screwdriver, and service life is not long, in addition because present society and scientific and technological industrial expansion, all trades and professions are also more and more higher to the requirement of assembling, big to Space Science and Technology, little of electronic components, increasing product all needs accurately to control the locking force of each preload piece, the standard of associated fasteners in assembling process, also clear and definite its corresponding screw-down torque of all size securing member, therefore how to measure its screw-down torque accurately, improve the power value output accuracy of torsion screwdriver, prolong its service life, become the key issue of torsion export structure in the torsion screwdriver.

Summary of the invention

Problem such as long at existing torsion screwdriver service life, that power value precision is not high provides a kind of its power value precision that can effectively improve to prolong the miniature torsion screwdriver of effects such as its service life.

For achieving the above object, the technical scheme that the utility model proposes is: miniature torsion screwdriver, comprise that torsion drives skid mechanism, torsion adjustment member and torsion display part, it is characterized in that: described torsion drives the mechanism of skidding and comprises the torsion driving body, and described torsion driving body end face is provided with the steel ball rolling groove.

Further, described torsion drives the mechanism of skidding and comprises driving head and torsion screwdriver head, and described driving head comprises a front end sleeve, and described torsion screwdriver head is connected with the front end sleeve.

Preferably, be provided with a strong magnets in the described front end sleeve.

Further, also be provided with driving head and torsion screwdriver spline groove on the described torsion driving body.

Further, be provided with the body stopper slot in the described torsion screwdriver.

Adopt technique scheme, preset the steel ball rolling groove on the miniature torsion screwdriver torsion driving body described in the utility model, contact-making surface increased when steel ball was rolled by torsion, stressed reducing on the unit are, in the frequent use of torsion screwdriver, wearing coefficient reduces greatly, and obviously increased the service life that makes torsion drive bottle opener; Simultaneously when the prefabricated steel ball rolling groove of torsion driving body, owing to be to be benchmark with driving body interfix hole, guaranteed the position degree in steel ball rolling groove and interfix hole, be the steel ball rolling groove all the time with the axis in interfix hole as benchmark, so when ball base drive steel ball moves to another displacement slot from a displacement, roll around the steel ball rolling groove that presets all the time, the stationarity when steel ball rolls is overally improved, the output of power value is stable, has also just improved the precision of torsion screwdriver.

Description of drawings

Fig. 1 is miniature torsion screwdriver schematic diagram described in the utility model;

Fig. 2 is miniature torsion screwdriver cutaway view described in the utility model;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the B-B cutaway view of Fig. 2;

Wherein: 1. strong magnets, 2. ball base, 3. first steel ball, 4. the torsion driving body, 5. first elastic component, 6. the torsion screwdriver head, 7. drive lid, 8. second steel ball, 9. second elastic component, 10. regulate push rod, 11. anti-tooth nuts, 12. driving heads, 13. torsion screwdriver bodies, 14. steel ball rolling grooves, 15. driving heads and torsion screwdriver spline groove, 16. body stopper slots.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described further.

Shown in Fig. 1-4, miniature torsion screwdriver described in the utility model, comprise that torsion drives the mechanism of skidding, torsion adjustment member and torsion display part, wherein: torsion drives the mechanism's part of skidding mainly by driving head 12, second elastic component 9, second steel ball 8, torsion driving body 4, first steel ball 3, ball base 2 is formed, wherein, torsion driving body 4 is done circumferentially limit commentaries on classics by 3 row, second steel ball 8, first steel ball 3 is contained in the ball base 2, during work, shown in ball base 2 rotates simultaneously by body stopper slot 16 and torsion screwdriver body 13, when torsion screwdriver body 13 is subjected to torsion, drive the steel ball rolling groove 14 that first steel balls 3 in the ball base 2 preset from torsion driving body 4 and slip in another driving head and the torsion screwdriver spline groove 15, and under the effect that first elastic component 5 is defeated, discharge or compress, and send " patter " prompting sound.

Miniature torsion screwdriver operation principle described in the utility model is: go into required torsion screwdriver head 6 in driving head 12 front end sleeve interpolations, be provided with strong magnets 1 in the driving head 12 front end sleeves, pull back and rotate to drive and cover 7, drive and regulate push rod 10 rotations, and begin to adjust the position (anti-tooth nut at circumferencial direction be provided with index line) of anti-tooth nut 11 in torsion screwdriver body 13, and then compression or discharge first elastic component 5, index line on anti-tooth nut 11 fillets aligns with required scale index line, unclamp to drive and cover 7, automatically the position of anti-tooth nut is locked, prevent that stressed causing regulated push rod 13 rotations and caused anti-tooth nut 11 displacements at work, cause power value error, holding torsion screwdriver body 13 and then tights a bolt, after reaching required torsion, ball base 2 with first steel ball 3 on the torsion driving body the steel ball rolling groove enter next steel bead groove and can send " patter " prompting sound, illustrate that the screwing force of bolt reaches this moment, twisting its screw-down torque can not increase more yet again, then is unlikely to cause stripped thread to cause scrapping of product too greatly because of its screw-down torque.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in not breaking away from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.

Claims

1. miniature torsion screwdriver, comprise that torsion drives skid mechanism, torsion adjustment member and torsion display part, is characterized in that: described torsion drives the mechanism of skidding and comprises the torsion driving body, and described torsion driving body end face is provided with the steel ball rolling groove.

2. miniature torsion screwdriver according to claim 1 is characterized in that: described torsion drives the mechanism of skidding and comprises driving head and torsion screwdriver head, and described driving head comprises a front end sleeve, and described torsion screwdriver head is connected with the front end sleeve.

3. miniature torsion screwdriver according to claim 2 is characterized in that: be provided with a strong magnets in the described front end sleeve.

4. miniature torsion screwdriver according to claim 1 is characterized in that: also be provided with driving head and torsion screwdriver spline groove on the described torsion driving body.

5. miniature torsion screwdriver according to claim 1 is characterized in that: be provided with the body stopper slot in the described torsion screwdriver.