CN102562754A

CN102562754A - Fastener, driving piece matched with fastener and punch forming fastener

Info

Publication number: CN102562754A
Application number: CN201010609110XA
Authority: CN
Inventors: 张光峰
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2010-12-28
Filing date: 2010-12-28
Publication date: 2012-07-11
Anticipated expiration: 2030-12-28
Also published as: CN102562754B

Abstract

The invention provides a fastener which comprises a thread part and a head part, wherein the head part is coaxially connected with one end of the thread part; the head part is provided with a plurality of detaching grooves which are distributed at the periphery of the head part along the radial direction; and the plurality of detaching grooves are not communicated with one another. The invention also provides a driving piece matched with the fastener and a punch forming the fastener. As the detaching grooves on the fastener are arranged at the periphery of the head part and are not communicated with one another, common detaching tools such as a plum blossom screwdriver, a straight screwdriver and a cross screwdriver can not be matched or do not have acting force to detach the detaching grooves, so that the anti-detaching requirement of the device with a special structure or special installing requirements can be met.

Description

The punching pin of fastening piece, the actuator that is mated and this fastening piece of moulding

Technical field

The present invention relates to the punching pin of a kind of fastening piece, the actuator that cooperates with this fastening piece and this fastening piece of moulding.

Background technique

Modern machine often interconnects through fastening piece between mechanism's part in making.Common fastening piece comprises socket head screw, interior hexagonal flower shape screw, cross grooved screw, straight groove type screw etc.; Such fastening piece generally includes the screw section and is located at the head of this screw section one end, is concaved with the dismounting groove away from approximate mid-section position correspondence on the end face of screw section on this head.These fastening pieces have all become general in the industry standard piece gradually; During use through with the supporting extracting tool of these fastening pieces such as cross-head screwdriver, straight screwdriver; Phillips screwdrivers etc. use together; Can be easily, dismounting apace, thereby realize fastening piece the interfixing or separate of fastening a plurality of mechanisms part.

But special or be equipped with the device of specific demand for some structures, not quick detachable after requiring to adopt fastening piece fastening, at this moment, the traditional standard fastening piece just can't satisfy matching requirements.

Summary of the invention

In view of the foregoing, be necessary to provide a kind of not easily detachable fastening piece, and the punching pin of a kind of actuator that cooperates with this fastening piece and this fastening piece of moulding is provided.

A kind of fastening piece, it comprises screw section and the coaxial head that is connected to screw section one end mutually, and this head offers a plurality of dismounting grooves, and these a plurality of dismounting grooves radially are laid in the periphery of head, and these a plurality of dismounting grooves are not communicated with mutually.

A kind of actuator, it comprises bar portion and drive portion, wherein drive portion has the external frame that the dismounting groove structure with above-mentioned fastening piece is complementary.

A kind of punching pin, it has drift, and this drift has the external frame that the dismounting groove structure with above-mentioned fastening piece is complementary.

Because the dismounting groove on the fastening piece is located at the periphery of head and is not communicated with mutually; Thereby thereby use common extracting tool such as cross-head screwdriver, straight screwdriver, the Phillips screwdriver etc. can not to cooperate or not have Point of Strength to be difficult for it is pulled down, thereby it be special or be equipped with the anti-dismounting requirement of the device of specific demand to have satisfied structure.

Description of drawings

Fig. 1 is the fastening piece of embodiment of the present invention and the stereogram of actuator.

Fig. 2 is the stereogram of fastening piece among Fig. 1.

Fig. 3 is the stereogram of actuator among Fig. 1.

Fig. 4 is the stereogram of the punching pin of fastening piece among moulding Fig. 1.

The primary component symbol description

Fastening piece	100
		Head	11
The screw section	13
		Curved end	111
The dismounting groove	113
		Screw thread	131
Sidewall	1131
		Connecting wall	1132
Diapire	1133
		Actuator	200
Bar portion	21
		Drive portion	23
Main body	211
		The grip part	213

Driving gear	231
		Fitting surface	2311
Support the side	2313
		End face	2315
Punching pin	300
		Body	31
Drift	33
		Groove	331
The punching press sword	332

Embodiment

To combine the actuator that accompanying drawing and embodiment be used to fastening piece of the present invention, with this fastening piece and the punching pin of this fastening piece of moulding to do further to specify below.

See also Fig. 1 and Fig. 2, fastening piece 100 comprises head 11 and the screw section 13 that links to each other with head 11.

It is roughly discoid that head 11 is, itself and 13 coaxial joining of screw section.Head 11 is a curved end 111 away from an end of screw section 13, offers a plurality of dismounting grooves 113 on the curved end 111.A plurality of dismounting grooves 113 radially evenly are laid in the periphery of head 11; And each dismounting groove 113 communicates with the periphery of head 11 respectively away from an end of head 11 central authorities; The other end radially extends near the medial axis of head 11 respectively; But do not intersect on the medial axis of curved end 111 of head 11, promptly a plurality of dismounting grooves 113 are not communicated with mutually.In this mode of execution, head 11 comprises that four 113, four of grooves of dismounting dismounting grooves 113 evenly are laid in contiguous peripheral position place on the curved end 111 of head 11, and is relative in twos, and is not communicated with mutually.

Each dismounting groove 113 is strip, comprises two sidewalls parallel with the radial direction of head 11 1131, a connecting wall 1132 and a diapire 1133.Connecting wall 1132 is roughly semicircle arcuation, and its two ends are connected with an end arc transition of headward 11 medial axis direction of two sidewalls 1131 respectively.Diapire 1133 is the fillet smooth connection with two side 1131 and connecting wall 1132.

Screw section 13 is a rod-like structure, offers screw thread 131 on it.In this mode of execution, curved end 111 is protruding towards the direction away from screw section 13.

See also Fig. 1 and Fig. 3, the actuator 200 that is used with fastening piece 100 comprises bar portion 21 and is located at the terminal drive portion 23 of bar portion 21.Bar portion 21 is roughly multidiameter shaft shape, comprises main body 211 and is connected in the grip part 213 of main body 211 1 ends.Drive portion 23 roughly is cylindrical shape, and its relative grip part 213 axially is convexly set in the other end of main body 211, and the diameter of axle size of drive portion 23 is greater than the diameter of axle size of main body 211.A plurality of dismounting grooves 113 on the terminal surface of drive portion 23 on the corresponding head 11 radially convex with a plurality of driving gears 231.In this mode of execution, drive portion 23 comprises four driving gears 231, and these four driving gears 231 evenly are laid on the terminal surface of drive portion 23 and contiguous peripheral position place, and are relative in twos.Each driving gear 231 all is the bar shaped bulk, and the dismounting groove 113 on structure and the head 11 matees each other.The connecting wall 1132 of one of each driving gear 231 corresponding fastening piece 100 dismounting groove 113, two sidewalls 1131 and diapire 1133 be respectively equipped with semicircular arc roughly fitting surface 2311, support side 2313 and end face 2315 with interconnective two of the two ends of fitting surface 2311; Fitting surface 2311 and two supports side 2313 for fillet is connected, and end face 2315 and fitting surface 2311 and two support side 2313 and be fillet and be connected.

See also Fig. 4, the punching pin 300 that is used for forming fastener 100 comprises body 31 and the drift 33 that forms from body 31 1 concave ends.Body 31 is a cylindrical structure, also can be the rod-like structure that cross section is rectangle or other shapes certainly.The concrete structure of drift 33 is corresponding with dismounting groove 113 structures of the head 11 of fastening piece 100, the punching press sword 332 that it is included in groove 331 and is located at a plurality of dentation structures on groove 331 perisporiums.Punching press sword 332 along the circumferential direction evenly distributes.The both sides of punching press sword 332 and groove 331 perisporiums and diapire smooth connection.In this mode of execution, punching press sword 332 numbers are four, are distributed in the perisporium place of groove 331, and relative in twos.

Please consult Fig. 1 to Fig. 4 simultaneously, when using actuator 200 to drive fastening piece 100, in the dismounting groove 113 of the head 11 of the drive portion 23 insertion fastening pieces 100 of actuator 200, wherein the fitting surface 2311 of drive portion 23 cooperates with the connecting wall 1132 of fastening piece 100.Support side 2313 and cooperatively interact with sidewall 1131 and apply the power that pushes of circumferencial direction, thereby fastening piece 100 and actuator 200 are rotated synchronously through driving gear 231 oppose side walls 1131.

When using punching pin 300 forming fasteners 100, utilize 33 pairs of heads of drift 11 to carry out punching press, and then mold the dismounting groove 113 of head 11.

The quantity that is appreciated that the dismounting groove 113 of fastening piece 100 is not limited to four in this mode of execution, and they also can three or five, six etc., and what can decide according to the actual demand of design the concrete quantity of dismounting groove 113.

Accordingly; The concrete quantity of the driving gear 231 of actuator 200 also is not limited to four in this mode of execution; Its also can for, three, five or six etc., the concrete quantity of driving gear 231 what and structure are mated the quantity and structure correspondence of dismounting groove 113 of the fastening piece 100 of use.

In like manner; The quantity of the punching press sword 332 of punching pin 300 also is not limited to four in this mode of execution; It also can be three, five or six etc., and the concrete quantity of punching press sword 332 what and structure are corresponding with the quantity and the structure of the dismounting groove 113 of its fastening piece 100 to be punched.

Because the dismounting groove 113 on the fastening piece 100 does not intersect at the medial axis of head 11; Thereby use common extracting tool such as cross-head screwdriver, straight screwdriver, Phillips screwdriver etc. can't they to be pulled down, thereby it is special or be equipped with the anti-dismounting requirement of the device of specific demand to have satisfied structure.In addition; Because the driving gear 231 of actuator 200 cooperates with the dismounting groove 113 of fastening piece 100, and dismantle the periphery that groove 113 radially is laid in head, so the arm of force is longer when dismantling; Use less power can produce bigger moment, thereby have the labour-saving effect.The driving gear 231 of actuator 200 support sidewall 1131 that side 2313 is held in dismounting groove 113 when rotating to drive fastening piece 100; Supporting side 2313 and sidewall 1131, contact and drive the angle for face be 0 degree; Therefore can transmit Maximum Torque, have higher driving efficient.The diapire 1133 of dismounting groove 113 is smooth connection with sidewall 1131 and connecting wall 1132; Be prone to make unmatched extracting tool to skid off in the dismounting groove 113, have certain anti-disassembling function, in addition; It can prevent that also stress is concentrated, wearing and tearing and scraping when minimizing cooperates with actuator 200.In addition, can reduce the active force that each dismounting groove 113 bears through a plurality of dismounting grooves 113 are set, thereby reduce the wearing and tearing in the unloading process, increase the service life.

The bar portion that is appreciated that actuator 200 also can be the crank throw shape, grip part 213 on it and 211 coaxial connections of main body.

In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, these all should be included in the present invention's scope required for protection according to the variation that the present invention's spirit is done.

Claims

1. fastening piece, it comprises screw section and the coaxial head that is connected to said screw section one end mutually, said head offers a plurality of dismounting grooves, it is characterized in that: said a plurality of dismounting grooves radially are laid in the periphery of head, and a plurality of dismounting groove is not communicated with mutually.

2. fastening piece as claimed in claim 1 is characterized in that: said head is formed with a curved end, and said dismounting groove is opened on the said curved end.

3. fastening piece as claimed in claim 1 is characterized in that: said dismounting groove communicates with the periphery of said head away from an end of the central authorities of head.

4. fastening piece as claimed in claim 1 is characterized in that: said a plurality of dismounting grooves evenly are laid on the periphery of said head.

5. fastening piece as claimed in claim 2 is characterized in that: each dismounting groove comprises and two sidewalls, connecting wall and diapires of said head radial parallel that said connecting wall is roughly semicircle arcuation, and its two ends are connected with said two sidewall arc transition respectively.

6. fastening piece as claimed in claim 5 is characterized in that: said diapire and said sidewall and said connecting wall smooth connection.

7. fastening piece as claimed in claim 6 is characterized in that: the curved end smooth connection of said connecting wall, sidewall and diapire and said head.

8. actuator, it comprises bar portion and the drive portion that links to each other with bar portion, it is characterized in that: said drive portion have with claim 1 to 7 in the external frame that is complementary of the dismounting groove structure of any said fastening piece.

9. punching pin, it has drift, it is characterized in that: said drift have with claim 1 to 7 in the external frame that is complementary of the dismounting groove structure of any said fastening piece.

10. punching pin as claimed in claim 9 is characterized in that: said punching pin also comprises body, and said drift is arranged with in an end of said body and the punching press sword that comprises groove and be located at a plurality of dentation structures on the perisporium of said groove.