CN104400166B

CN104400166B - Nut-grooving tooling

Info

Publication number: CN104400166B
Application number: CN201410671609.1A
Authority: CN
Inventors: 王明生
Original assignee: Henan Aerospace Precision Machining Co Ltd
Current assignee: Henan Aerospace Precision Machining Co Ltd
Priority date: 2014-11-21
Filing date: 2014-11-21
Publication date: 2017-02-01
Anticipated expiration: 2034-11-21
Also published as: CN104400166A

Abstract

The invention relates to a nut-grooving tooling. The nut-grooving tooling comprises a tooling base and an operating rod, the operating rod can be guided to move in a fore-and-aft direction, and is rotatably arranged on the tooling base, the front end of the operating rod extends out of the front end surface of the tooling base, and is provided with a chuck for clamping a machined nut, the front end surface of the tooling base is provided with more than two positioning grooves or positioning projections, the operating rod is provided with a positioning arm which is radially perpendicular to the operating rod, the positioning arm is provided with a raised structure or a sunken structure, and an elastic part which is used for applying backward acting force on the operating rod so that the raised structure or the positioning projections are embedded in the positioning grooves or the sunken structure along the fore-and-aft direction. The nut-grooving tooling does not need to depend on manual positioning operation and adopt a magnetic base attraction method for clamping, can ensure positioning precision, is convenient to use, and can help increase machining efficiency, and labor intensity is low.

Description

A kind of nut fluting frock

Technical field

The frock the present invention relates to a kind of nut is slotted.

Background technology

In some special occasions, nut needs setting fluting on end face, such as wide variety of ten in aero-engine Two angle flange face self-locking nuts, often arrange the fluting of 6 roads radially insertion in the straight oral area position of nut.Knot due to nut Structure special it is difficult on vice direct clamping, therefore more difficult to process.

Application No. 201220304605.6, Authorization Notice No. are that the Chinese patent of cn 202752884 u discloses one kind Slotted nut wire cutting fluting frock, including positioning table, magnet base and the clamping block for clamping nut, wherein sets on positioning table It is equipped with orthogonal horizontal location face and vertically oriented face；Magnet base be provided with respectively with positioning table on horizontal location face and The horizontal plane of vertically oriented face snug fit and vertical plane.Clamping block is multidiameter structure, forms clamping head, including for relying on The big footpath section that end face is absorbed and fixed on magnet base and be provided with externally threaded path section, nut can spinning path section outer spiral shell Clamping is realized on stricture of vagina.Circumferentially it is evenly arranged with equal with the fluting quantity of nut on the outer peripheral face of clamping block or become integral multiple Decile plane, decile plane include for positioning when respectively with positioning table on horizontal location face and vertically oriented face be adjacent to and join The orthogonal plane closed.During use, make orthogonal plane on clamping block respectively with positioning table on horizontal location face With vertically oriented face snug fit and rely on magnet base to fix, realize the positioning of a direction, you can the opening of processing respective direction Groove；This road fluting machine after, discharge magnet base, rotate clamping block to other direction and rely on respective planes respectively with positioning Horizontal location face on platform and vertically oriented face snug fit, such that it is able to carry out the processing of fluting on other direction.

But, need dependence etc. point plane level corresponding with positioning table fixed using the positioning of nut during above-mentioned fluting frock The cooperation in plane and vertically oriented face is realized, and it also requires carry out absorption using magnet base fixing, complex operation, holds during absorption Easily occur crooked, anthropic factor impact is larger, is difficult to ensure product consistency and machining accuracy, in-convenience in use.

Content of the invention

It is an object of the invention to provide nut fluting frock a kind of easy to use and that positioning precision is high.

A kind of nut of present invention fluting frock the technical scheme is that a kind of nut fluting frock, including tooling base Guiding movement be rotatably arranged on action bars on tooling base along the longitudinal direction, described work is stretched out in the front end of described action bars The dress front end surface of base and which is provided with clamping head for the processed nut of clamping, in the front end surface of described tooling base Be provided with more than two along action bars radially extend for each Working position corresponding detent respectively with processed nut Or positioning convex, described action bars is provided with the registration arm radially vertical with it, described registration arm be provided with for corresponding Described detent or positioning convex are fitted together to the bulge-structure of circumferentially block cooperation or sunk structure along the longitudinal direction, described It is additionally provided between action bars and described tooling base for active force backwards being applied to action bars so that bulge-structure or depression The structure elastic component chimeric along the longitudinal direction with described detent or positioning convex.

Described tooling base is provided with the pilot hole extending in front and back, and described action bars guiding movement is assemblied in guiding in the hole.

Described detent or positioning convex are evenly distributed setting centered on pilot hole.

Described tooling base is by the sleeve being provided with pilot hole and the connecting bottom board being fixed by screws on described sleeve Constitute, described sleeve outer peripheral face has the planar section with connecting bottom board plate face close fit.

Described pilot hole is through hole, is more than guide section internal diameter including the guide section coordinating with action bars guiding movement and internal diameter Big footpath section, described elastic component is the spring being set on action bars, the front end of described spring with for being connected described guide section With the ring-shaped step compression fit of big footpath section, the rear end of described action bars stretch out pilot hole open rearward end and be provided with for spring The cooperation of rear end block Stop structure.

The rear end of described action bars is provided with external screw thread, and described Stop structure is pad on external screw thread for the spinning and spring limit Position nut.

The rear end of described action bars is provided with for the spin-ended assembling of corresponding shifting tool to drive the instrument that action bars rotates even Access node structure.

Described instrument attachment structure is to be arranged on the interior four directions for four square head wrench insertions of operation rod rear end end face.

The detent that trough wall surface is circular arc is provided that on the front end surface of described tooling base, described registration arm is It is located in the alignment pin on action bars, described alignment pin is had and formed with the outer peripheral face of the trough wall surface close fit of detent Bulge-structure.

Described action bars includes front end surface and is provided with the bar portion of screwed hole, the screw thread in the hole in described bar portion front end for the spinning Stud and be used for the clamp nut on stud for the spinning, described clamping head is to be made up of described bolt and clamp nut, described tight Gu nut has the rear end face of the front end surface for compressing described bar portion and supplies the processed nut on described stud for the spinning The front end face of compression.

The present invention adopts technique scheme, and guiding movement is arranged on tooling base action bars along the longitudinal direction, frock The front end surface of base is provided with more than two and divides for each Working position with processed nut along what action bars radially extended Not corresponding detent or positioning convex, described action bars is provided with the registration arm radially vertical with it, in described registration arm It is provided with for being fitted together to the raised knot with the cooperation of circumferentially block along the longitudinal direction with corresponding described detent or positioning convex Structure or sunk structure, action bars in the presence of elastic component, bulge-structure thereon or sunk structure can with tooling base on Detent or positioning convex along the longitudinal direction be fitted together to and realize circumferentially positioned, when needing to rotate processed nut, to operation Bar apply active force forward so that it is travelled forward and with tooling base on detent or positioning convex depart from, rotate certain Cancel the active force to action bars after angle, rely on elastic component to make the bulge-structure on action bars or sunk structure and tooling base On detent or positioning convex recover chimeric, you can realize the positioning of another location, compared with prior art, be not required to according to Manually carry out by bit manipulation, be also not required to be clamped by the way of magnet base adsorbs, ensure that positioning precision, user Just, labor intensity is little, is conducive to improving working (machining) efficiency.

Brief description

Fig. 1 is a kind of structural representation of an embodiment of nut of present invention fluting frock；

Fig. 2 is the structural representation of the sleeve of tooling base in Fig. 1；

Fig. 3 is the left view of Fig. 2；

Fig. 4 is the structural representation of the connecting bottom board of tooling base in Fig. 1；

Fig. 5 is the top view of Fig. 4；

Fig. 6 is the structural representation of 12 angle flange face self-locking nuts；

Fig. 7 is the left view of Fig. 6；

Fig. 8 is the partial enlarged drawing at i in Fig. 1.

The each reference of in figure is corresponding entitled: 10- tooling base, 11- connecting bottom board, 12- sleeve, 13- planar portions Point, 14- front end surface, 15- detent, 16- pilot hole, 17- guide section, 18- big footpath section, 20- spring, 30- action bars, 31- bar portion, 32- clamping head, 33- stud, 34- clamp nut, 35- pad, 36- spring retainer nut, four directions in 37-, 38- is fixed Position pin, 40- 12 angle flange face self-locking nut, 41- nut groove.

Specific embodiment

A kind of one enforcement of nut of present invention fluting frock, for example shown in Fig. 1 ~ Fig. 8, is a kind of in 12 horn cuppings The fluting frock of fluting on blue face self-locking nut 40, the structure of this self-locking nut as shown in Figure 7 and Figure 8, which is provided with 6 roads along circle The uniform nut groove of circumferential direction 41；Fluting frock include tooling base 10, along the longitudinal direction guiding movement be arranged on tooling base On 10 and and tooling base 10 action bars 30 being rotatably assorted and the spring 20 being arranged between tooling base 10 and action bars 30.

Tooling base 10 includes connecting bottom board 11 and sleeve 12, and sleeve 12 has flat with the plate face cooperation of connecting bottom board 11 Face part 13, planar section 13 is provided with screwed hole, and connecting bottom board 11 is provided with corresponding screw perforation, connecting bottom board 11 and set Cylinder 12 is fixed together by screw.Sleeve 12 is provided with the pilot hole 16 extending in front and back, and this pilot hole 16 is through hole, bag Include the guide section 17 with the cooperation of action bars 30 guiding movement and internal diameter is more than the big footpath section 18 of guide section 17 internal diameter, action bars 30 is led It is assemblied in this pilot hole 16 to movement and can rotate in pilot hole 16.

Action bars 30 includes bar portion 31 and the clamping head 32 for the processed nut of clamping, in the front end surface 14 of bar portion 31 It is provided with screwed hole, clamping head 32 is made up of in the stud 33 of above-mentioned screw thread in the hole and the clamp nut 34 being correspondingly arranged spinning.Tightly Gu nut 34 has the rear end face of the front end surface 14 for compressing described bar portion 31 and supplies the quilt on described stud 33 for the spinning The front end face of nut processing compression, processed nut can be tightened on stud 33 and rely on clamp nut 34 to position.Behaviour Make bar 30 front end and stretch out the part of sleeve 12 to be provided with pin-and-hole, wear in pin-and-hole and be fixed with alignment pin 38, alignment pin 38 constitutes positioning Arm；The front end surface 14 of sleeve 12 be provided with six along action bars 30 radially extend for each machining position with processed nut Put corresponding detent 15 respectively, each detent 15 is evenly distributed setting centered on pilot hole 16, and alignment pin 38 has Have the outer peripheral face with the arc-shaped slot wall close fit of detent 15, constitute for sleeve 12 front end surface 14 on determine Position groove 15 is fitted together to along the longitudinal direction with the bulge-structure of circumferentially block cooperation.

The rear end of action bars 30 is stretched out pilot hole 16 open rearward end and be which is provided with external screw thread, and external screw thread is installed with successively Pad 35 and spring retainer nut 36, spacing for carrying out to sheathed spring 20 on action bars 30, so that spring 20 is compressed in and lead Between the ring-shaped step being formed to section 17 and big footpath section 18 and pad 35, constitute for action bars 30 is applied with effect backwards Power is so that the bulge-structure elastic component chimeric along the longitudinal direction with described detent 15.

During use, by the clamping head 32 of processed 12 angle flange face self-locking nut 40 spinning to action bars 30 front end On, after screwing, tooling base 10 is arranged on one and is used for driving the route-variable device of tooling base 10 adjustment position, so Afterwards route-variable device is arranged on vice, 12 angle flange face self-locking nuts 40 are moved to by conjunction by route-variable device Suitable position, and route-variable is locked, then can carry out groove milling, because groove is symmetrical, two grooves of a millable, first After secondary groove milling terminates, with interior cubic the 37 of interior cubic 37 spanner update bar 30 tail end and rotate, making 12 angle flange faces Self-locking nut 40 rotates with action bars 30, because sleeve 12 front end face is provided with detent 15, when going to 30 turns of action bars When moving at the detent 15 corresponding to next Working position, acted on by spring 20, alignment pin 38 energy on action bars 30 Enough automatically insert in indexing trough, then can carry out second groove milling.According to the method described above, rotation three times just can be by six grooves Completion of processing.

In the above-described embodiments, tooling base 10 is provided with the pilot hole 16 of before and after's insertion, and action bars 30 guiding movement sets Put in pilot hole 16 and be rotatably assorted with pilot hole 16, and tooling base 10 front end is provided with detent 15, on action bars 30 It is provided with alignment pin 38 and form bulge-structure.In other embodiments of the invention, action bars 30 can also guide otherwise Mobile assembling is simultaneously rotatably assorted with pilot hole 16, for example, be directed to the form that hole 16 is arranged to blind hole, corresponding in tooling base 10 In blind via bottom position processing perpendicular to pilot hole 16 axial direction opening, such that it is able to by this opening in action bars 30 rear end Setting handle, relies on handle to drive guiding movement and rotation before and after action bars 30.In addition, in other embodiments, tooling base 10 front ends can also arrange positioning convex, now arranges corresponding sunk structure in the registration arm of action bars 30.

Claims

1. a kind of nut fluting frock it is characterised in that: include tooling base and along the longitudinal direction guiding movement simultaneously rotate setting Action bars on tooling base, the front end of described action bars stretch out the front end surface of described tooling base and which is provided with for The clamping head of the processed nut of clamping, the front end surface of described tooling base is provided with more than two and radially extends along action bars For each Working position corresponding detent or the positioning convex respectively with processed nut, described action bars is provided with and it Radially vertical registration arm, described registration arm be provided with for corresponding described detent or positioning convex along the longitudinal direction The chimeric bulge-structure with the cooperation of circumferentially block or sunk structure, are additionally provided with use between described action bars and described tooling base In active force backwards being applied to action bars so that bulge-structure or sunk structure and described detent or positioning convex are along front The elastic component that rear direction is fitted together to.

2. a kind of nut fluting frock according to claim 1 it is characterised in that: described tooling base prolongs before and after being provided with The pilot hole stretched, described action bars guiding movement is assemblied in guiding in the hole.

3. a kind of nut fluting frock according to claim 2 it is characterised in that: described detent or positioning convex with It is evenly distributed setting centered on pilot hole.

4. a kind of nut fluting frock according to Claims 2 or 3 it is characterised in that: described tooling base is by being provided with The sleeve of pilot hole and the connecting bottom board being fixed by screws on described sleeve are constituted, and described sleeve outer peripheral face has and is connected The planar section of base plate plate face close fit.

5. a kind of nut fluting frock according to Claims 2 or 3 it is characterised in that: described pilot hole is through hole, including With action bars guiding movement cooperation guide section and internal diameter be more than guide section internal diameter big footpath section, described elastic component be set in behaviour Make the spring on bar, the front end of described spring and the ring-shaped step compression fit for being connected described guide section and big footpath section, institute The rear end stating action bars is stretched out pilot hole open rearward end and is provided with for the Stop structure with the rear end block cooperation of spring.

6. a kind of nut fluting frock according to claim 5 it is characterised in that: the rear end of described action bars is provided with outer spiral shell Stricture of vagina, described Stop structure is pad on external screw thread for the spinning and spring retainer nut.

7. a kind of nut fluting frock according to claim 5 it is characterised in that: the rear end of described action bars is provided with and supplies phase The spin-ended assembling of shifting tool answered is to drive the instrument attachment structure that action bars rotates.

8. a kind of nut fluting frock according to claim 7 it is characterised in that: described instrument attachment structure is to be arranged on The interior four directions for four square head wrench insertions of operation rod rear end end face.

9. a kind of nut fluting frock according to claim 1 or 2 or 3 it is characterised in that: the front end of described tooling base The detent that trough wall surface is circular arc is provided that on end face, described registration arm is the alignment pin being located on action bars, institute State alignment pin and have and form bulge-structure with the outer peripheral face of the trough wall surface close fit of detent.

10. a kind of nut fluting frock according to claim 1 or 2 or 3 it is characterised in that: before described action bars includes End end face be provided with the bar portion of screwed hole, the stud of the screw thread in the hole in described bar portion front end for the spinning and for spinning to stud on Clamp nut, described clamping head is to be made up of described stud and clamp nut, and described clamp nut has for compressing described bar The rear end face of the front end surface in portion and the front end face that the processed nut on described stud compresses for spinning.