CN202097343U - Shoulder screw forming die free of turning - Google Patents
Shoulder screw forming die free of turning Download PDFInfo
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- CN202097343U CN202097343U CN2011201781679U CN201120178167U CN202097343U CN 202097343 U CN202097343 U CN 202097343U CN 2011201781679 U CN2011201781679 U CN 2011201781679U CN 201120178167 U CN201120178167 U CN 201120178167U CN 202097343 U CN202097343 U CN 202097343U
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Abstract
The utility model relates to the technical field of shoulder screw forming devices, in particular to a shoulder screw forming die free of turning. The shoulder screw forming die comprises a first workstation forming die, a second workstation forming die, a third workstation forming die and a fourth workstation forming die sequentially, and blank materials are processed in a cold headed manner by the first workstation forming die, the second workstation forming die, the third workstation forming die and the fourth workstation forming die in sequence so that a semi-finished shoulder screw provided with a head, a rod and a thread portion is finally formed. By the aid of the shoulder screw forming die, the forming technology of turning the diameter of the blank thread portion in the conventional technology is omitted, intermediate procedures are reduced, and affections on form and position tolerance and thread accuracy of finished shoulder screws from the intermediate procedures are effectively avoided. In addition, production efficiency is improved, the form and position tolerance and the thread accuracy of finished shoulder screws are effectively guaranteed, materials are saved and production cost is reduced.
Description
Technical field
The utility model relates to the plug shaped device technical field that screws, and relates in particular to a kind of plug and screws and exempt to be lathed type die.
Background technology
Filling in screw (having another name called stop screw, dogbolt, braking bolt) mainly is the top clamping plate that is used and is widely used in bolt draw bar in three template dies, is the mould accessory of the opening stroke between control runner ejection plate and the cover half template; Plug screws and has the good advantage of hardness height, good toughness, wearability and hear resistance, can significantly improve the service life of precision die.
Plug screws and includes head, bar portion and form externally threaded threaded portion, and head forms interior hexagonal counterbore.Traditional plug moulding process that screws has generally comprised cold-heading molding technology and secondary turning technology; Promptly through cold-heading molding technological forming head and bar portion; And then base directly passes through the periphery wall moulding external screw thread in rolling screw-threads device base footpath in the threaded portion at last again in moulding threaded portion, the end of bar portion to pass through secondary turning technology.There are many defectives in traditional plug moulding process that screws, and for example, base footpath in threaded portion must form through turning, and operation is many, and so not only waste material reduces production efficiency, also can cause the screw form and position tolerance and the accuracy of thread of finished product of plug to be difficult to guarantee.
Summary of the invention
The purpose of the utility model is that providing a kind of plug to screw to the deficiency of prior art exempts to be lathed type die; This plug screws and exempts to be lathed type die and can reduce material usage effectively; Enhance productivity, can also guarantee to fill in the screw form and position tolerance and the accuracy of thread of finished product effectively.
For achieving the above object, the utility model is realized through following technical scheme.
A kind of plug screws and exempts to be lathed type die, and it includes the first station mould, the second station mould, the 3rd station mould and the 4th station mould successively;
The first station mould includes the first station male model and the first station master mold that cooperatively interacts; The first station master mold offers first die cavity; Bar portion preformation die cavity and threaded portion preformation die cavity that first die cavity includes coaxial setting and is arranged in order from front to back; The first station male model is equipped with can be along first die cavity, first drift in axial sliding; The rear end side of the first station master mold is equipped with and is nested in first die cavity and can be along first die cavity, first push rod in axial sliding, when the first station male model and the first station master mold matched moulds, in the rearward end intercalation of first drift to the bar portion preformation die cavity;
The second station mould includes the second station male model and the second station master mold that cooperatively interacts; The second station master mold offers second die cavity; Bar portion forming cavity and threaded portion forming cavity that second die cavity includes coaxial setting and is arranged in order from front to back; The second station male model is equipped with can be along second die cavity, second drift in axial sliding; The rear end side of the second station master mold be equipped be nested in the forming cavity of threaded portion and can be along the threaded portion forming cavity second push rod in axial sliding, the rearward end of the second station male model forms the first head preformation die cavity with the coaxial setting of second die cavity, second drift is located at the front of the first head preformation die cavity movably;
The 3rd station mould includes the 3rd station male model and the 3rd station master mold that cooperatively interacts; The 3rd station master mold offers and is used for bar portion and threaded portion base the 3rd die cavity directly that limit plug screws; The rear end side of the 3rd station master mold is equipped with and is nested in the 3rd die cavity and can be along the 3rd die cavity the 3rd push rod in axial sliding; The leading section of the 3rd die cavity offers the aftershaping groove; The rearward end of the 3rd station male model offers and the preceding forming tank of aftershaping groove over against setting, and when the 3rd station male model and the 3rd station master mold matched moulds, preceding forming tank and the amalgamation of aftershaping groove and one common peripheral are dressed up the second head preformation die cavity;
The 4th station mould includes the 4th station male model and the 4th station master mold that cooperatively interacts; The 4th station master mold offers and is used for bar portion and threaded portion base the 4th die cavity directly that limit plug screws; The rear end side of the 4th station master mold is equipped with and is nested in the 4th die cavity and can be along the 4th die cavity the 4th push rod in axial sliding; The leading section of the 4th die cavity offers the head forming cavity that is round table-like; The 4th station male model is equipped with can be along the 4th die cavity the 3rd drift in axial sliding; The rearward end of the 3rd drift forms the hexagonal of the interior hexagonal counterbore that is used for the head that the punching out plug screws and dashes rod, and when the 4th station male model and the 4th station master mold matched moulds, the hexagonal of the 3rd drift is in excellent intercalation to head forming cavity.
Wherein, said threaded portion preformation die cavity includes arc-shaped cavity and the cylinder chamber that connects successively from front to back, and the more said bar of the diameter of cylinder chamber portion preformation die cavity diameter is little, and the rear end of bar portion preformation die cavity is connected through the arc-shaped cavity transition with the front end of cylinder chamber.
Wherein, The said first station master mold is equipped with first and inserts; The first station master mold corresponding first is inserted and is offered first installing hole of inserting, and first inserts is flush-mounted in first and inserts in the installing hole, and said bar portion's preformation die cavity and said threaded portion preformation die cavity take shape in first inside of inserting respectively.
Wherein, the said first head preformation die cavity is frustum, and the point diameter of the first head preformation die cavity is little than the rear end diameter.
Wherein, said aftershaping groove is frustum, and the point diameter of aftershaping groove is big than the rear end diameter.
Wherein, The rearward end of the said first station male model, the said second station male model, said the 3rd station male model and said the 4th station male model is equipped with second respectively and inserts; The first station male model, the second station male model, the 3rd station male model and the 4th station male model corresponding second inserted and offered second installing hole of inserting respectively, and second inserts is flush-mounted in second and inserts in the installing hole; Said first head preformation die cavity and said preceding forming tank take shape in corresponding second respectively and insert, and said first drift, said second drift and said the 3rd drift are nested in corresponding second movably and insert.
Wherein, The said second station master mold, said the 3rd station master mold and said the 4th station master mold include the master mold sleeve pipe with containing cavity respectively; The containing cavity of master mold sleeve pipe is nested with preceding internal mold, back internal mold and master mold locking closure from front to back successively; Preceding internal mold is installed between master mold sleeve pipe and the back internal mold, and between internal mold and the master mold locking closure, master mold locking closure and master mold sleeve pipe were spirally connected before back internal mold was installed in; Said bar portion forming cavity is arranged at the inside of the preceding internal mold of the second station master mold, and said threaded portion forming cavity is arranged at the inside of the back internal mold of the second station master mold; Said second push rod, said the 3rd push rod and said the 4th push rod run through corresponding master mold locking closure respectively and extend in corresponding said second die cavity, said the 3rd die cavity and said the 4th die cavity.
Wherein, Bar portion positioning chamber and threaded portion positioning chamber that said the 3rd die cavity and said the 4th die cavity include coaxial setting respectively and be arranged in order from front to back; Bar portion positioning chamber is arranged at the inside of the preceding internal mold of corresponding the 3rd die cavity and the 4th die cavity, and the threaded portion positioning chamber is arranged at the inside of the back internal mold of corresponding the 3rd die cavity and the 4th die cavity.
Wherein, said before internal mold be equipped with the 3rd and insert, preceding internal mold the corresponding the 3rd insert offer run through fully from front to back before the 3rd installing hole of inserting of internal mold, the 3rd inserts is flush-mounted in the 3rd and inserts in the installing hole; Said back internal mold is equipped with the 4th and inserts, and back internal mold correspondence the 4th is inserted and offered the 4th installing hole of inserting, and the 4th inserts is flush-mounted in the 4th and inserts in the installing hole; Said bar portion's forming cavity and said bar portion positioning chamber take shape in the corresponding the 3rd inside of inserting respectively, and said threaded portion forming cavity and said threaded portion positioning chamber take shape in the corresponding the 4th inside of inserting respectively.
Wherein, Said the 3rd station master mold and said the 4th station master mold also include the 5th and insert; The 5th insert corresponding said before internal mold the front side and be installed between corresponding said master mold sleeve pipe and the preceding internal mold, said aftershaping groove and said head forming cavity take shape in the corresponding the 5th inside of inserting respectively.
The beneficial effect of the utility model is: the described a kind of plug of the utility model screws and exempts to be lathed type die and include the first station mould, the second station mould, the 3rd station mould and the 4th station mould successively; According to the technical scheme of the utility model, blank is plug with head, bar portion and the threaded portion base footpath semi-finished product that screw via the first station mould, the second station mould, the 3rd station mould and the 4th station mould cold-heading processing and final molding successively; Through the rolling screw-threads device in the threaded portion base footpath moulding external screw thread, the semi-finished product that can screw through the plug after the utility model processing are processed the plug finished product that screws.Wherein, the first station mould utilizes the first drift upsetting pressure blank and treats bar portion that the moulding plug screws and the blank in threaded portion base footpath carries out preliminary treatment through bar portion preformation die cavity and threaded portion preformation die cavity when matched moulds; The second station mould utilizes the second drift upsetting pressure blank and through bar portion forming cavity and threaded portion forming cavity bar portion and the threaded portion base that plug to be formed screws is directly carried out the final molding processing when matched moulds; In addition, the blank section of also treating the head that the moulding plug screws through the first head preformation die cavity carries out the preliminary treatment first time; The 3rd station mould is treated the blank section of the head that the moulding plug screws and is carried out the preliminary treatment second time through enclosed the second head preformation die cavity that forms of dress by preceding forming tank and aftershaping groove when matched moulds; The blank section of the head that through the head forming cavity plug to be formed is screwed during the 4th station mould matched moulds carries out final molding to be handled, in addition, and the interior hexagonal counterbore of the head that the hexagonal of also utilizing the 3rd drift screws towards excellent moulding plug.The utility model forms the base footpath, threaded portion that plug screws with head, bar portion upsetting pressure in the lump; Removed on the one hand threaded portion base footpath turning moulding process included in the traditional handicraft; Reduced middle operation; And then avoided middle operation effectively to plug the screw form and position tolerance of finished product and the influence of accuracy of thread, therefore, the utility model has improved production efficiency and can guarantee to fill in the screw form and position tolerance and the accuracy of thread of finished product effectively; On the other hand, also economical with materials has lowered production cost.
Description of drawings
Utilize accompanying drawing to come the utility model is further described below, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model.
Fig. 1 is the semi-finished product that screw of the plug after the utility model processing.
Fig. 2 is in the structural representation under the die opening state for the utility model first station mould.
Fig. 3 is in the structural representation under the matched moulds state for the utility model first station mould.
Fig. 4 is in the structural representation under the die opening state for the utility model second station mould.
Fig. 5 is in the structural representation under the matched moulds state for the utility model second station mould.
Fig. 6 is in the structural representation under the die opening state for the utility model the 3rd station mould.
Fig. 7 is in the structural representation under the matched moulds state for the utility model the 3rd station mould.
Fig. 8 is in the structural representation under the die opening state for the utility model the 4th station mould.
Fig. 9 is in the structural representation under the matched moulds state for the utility model the 4th station mould.
In Fig. 1 to Fig. 9, include:
1---first station mould 11---, the first station male model
111---first drifts 12---, the first station master mold
121---bar portion preformation die cavity 122---threaded portion preformed
122a---arc-shaped cavity 122b---cylinder chamber
123---first push rods 2---, the second station mould
21---second station male models 211---, second drift
212---first head preformation die cavities 22---, the second station master mold
221---bar portion forming cavity 222---threaded portion forming cavity
223---second push rods 3---the 3rd station mould
The preceding forming tank of 31---the 3rd station male models 311---
32---the 3rd station master molds 321---the 3rd push rod
322---aftershaping groove 323---bar portion positioning chamber
324---threaded portion positioning chambers 4---the 4th station mould
41---the 4th station male models 411---the 3rd drift
411a---hexagonal is dashed rod 42---the 4th station master mold
421---the 4th push rod 422---head forming cavity
51---first insert 51a---first installing hole of inserting
52---second insert 52a---second installing hole of inserting
53---the 3rd insert 53a---the 3rd installing hole of inserting
54---the 4th insert 54a---the 4th installing hole of inserting
55---the 5th insert 55a---the 5th installing hole of inserting
The preceding internal mold of 61---master mold sleeve pipes 62---
63---back internal mold 64---master mold locking closure
The interior hexagonal counterbore of 71---heads 711---
72---bar portion 73---threaded portion base footpath.
The specific embodiment
Need to prove; Employed word " preceding ", " back ", " front end ", " rear end ", " leading section ", " rearward end ", " front " and " rear end side " all refer to the matched moulds direction in describing below; When being matched moulds; Male model is from front to back towards corresponding master mold motion, but above-mentioned word does not limit the utility model concrete assembling situation and user mode; Fig. 1 is the semi-finished product that screw of the plug after the utility model processing.
Come the utility model is further described below in conjunction with embodiment.
Embodiment one, and to shown in Figure 9, a kind of plug screws and exempts to be lathed type die like Fig. 2, and it includes the first station mould 1, the second station mould 2, the 3rd station mould 3 and the 4th station mould 4 successively; The first station mould 1 includes the first station male model 11 and the first station master mold 12 that cooperatively interacts; The first station master mold 12 offers first die cavity; Bar portion preformation die cavity 121 and threaded portion preformation die cavity 122 that first die cavity includes coaxial setting and is arranged in order from front to back; The first station male model 11 is equipped with can be along first die cavity, first drift 111 in axial sliding; The rear end side of the first station master mold 12 is equipped with and is nested in first die cavity and can be along first die cavity, first push rod 123 in axial sliding, when the first station male model 11 and the first station master mold, 12 matched moulds, in the rearward end intercalation of first drift 111 to the bar portion preformation die cavity 121; The second station mould 2 includes the second station male model 21 and the second station master mold 22 that cooperatively interacts; The second station master mold 22 offers second die cavity; Bar portion forming cavity 221 and threaded portion forming cavity 222 that second die cavity includes coaxial setting and is arranged in order from front to back; The second station male model 21 is equipped with can be along second die cavity, second drift 211 in axial sliding; The rear end side of the second station master mold 22 be equipped be nested in the threaded portion forming cavity 222 and can be along the threaded portion forming cavity 222 second push rod 223 in axial sliding; The rearward end of the second station male model 21 forms the front of being located at the first head preformation die cavity 212 with the first head preformation die cavity, 212, the second drifts 211 of the coaxial setting of second die cavity movably; The 3rd station mould 3 includes the 3rd station male model 31 and the 3rd station master mold 32 that cooperatively interacts; The 3rd station master mold 32 offers and is used for the bar portion 72 that limit plug screws and the 3rd die cavity in threaded portion base footpath 73; The rear end side of the 3rd station master mold 32 is equipped with and is nested in the 3rd die cavity and can be along the 3rd die cavity the 3rd push rod 321 in axial sliding; The leading section of the 3rd die cavity offers aftershaping groove 322; The rearward end of the 3rd station male model 31 offers and the preceding forming tank 311 of aftershaping groove 322 over against setting; When the 3rd station male model 31 and the 3rd station master mold 32 matched moulds, preceding forming tank 311 is dressed up the second head preformation die cavity with 322 amalgamations of aftershaping groove and one common peripheral; The 4th station mould 4 includes the 4th station male model 41 and the 4th station master mold 42 that cooperatively interacts; The 4th station master mold 42 offers and is used for the bar portion 72 that limit plug screws and the 4th die cavity in threaded portion base footpath 73; The rear end side of the 4th station master mold 42 is equipped with and is nested in the 4th die cavity and can be along the 4th die cavity the 4th push rod 421 in axial sliding; The leading section of the 4th die cavity offers the head forming cavity 422 that is round table-like; The 4th station male model 41 is equipped with can be along the 4th die cavity the 3rd drift 411 in axial sliding; The rearward end of the 3rd drift 411 forms the hexagonal of the interior hexagonal counterbore 711 that is used for the head 71 that the punching out plug screws towards excellent 411a, when the 4th station male model 41 and the 4th station master mold 42 matched moulds, the hexagonal of the 3rd drift 411 towards excellent 411a intercalation to head forming cavity 422.
Respectively the course of work of the first station mould 1, the second station mould 2, the 3rd station mould 3 and the 4th station mould 4 is carried out detailed description below in conjunction with accompanying drawing:
As shown in Figures 2 and 3, first drift 111 is nested in the first station male model, the 11 corresponding suit holes and can slides along this suit hole, and the front of first drift 111 is equipped with lining bar; In addition; Threaded portion preformation die cavity 122 includes arc-shaped cavity 122a and the cylinder chamber 122b that connects successively from front to back; The diameter of cylinder chamber 122b is little than bar portion preformation die cavity 121 diameters, and the rear end of bar portion preformation die cavity 121 is connected through arc-shaped cavity 122a transition with the front end of cylinder chamber 122b.Before utilizing first drift, 111 upsetting pressure blanks, in bar-shaped blank intercalation to the first die cavity, at this moment, blank is kept out and stop bit by the shape chamber 122a of threaded portion preformation die cavity 122; After treating that the blank placement finishes; With the first station male model 11 and the first station master mold, 12 matched moulds; At this moment, the first station male model 11 moves and the rear end face that finally makes the station male model 11 of winning fits in the front end face of the first station master mold 12 towards the first station master mold 12; After matched moulds finished, lining bar drove first drift, 111 upsetting pressure blanks, at this moment; 111 intercalations of first drift to bar portion preformation die cavity 121, under the upsetting pressure effect of first drift 111, blank generation plastic deformation; Wherein, the rearward end of blank enters in the cylinder chamber 122b via the arc-shaped cavity 122a of threaded portion preformation die cavity 122, under the continuous action of drift; The rearward end of blank enters in the cylinder chamber 122b and towards rear side continuously extends, and then forms base footpath, threaded portion 73; In addition, under the reaction of arc-shaped cavity 122a, the leading section of blank is fitted by jumping-up and with the perisporium of bar portion preformation die cavity 121; After treating that bar portion 72 that bar portion preformation die cavity 121 and 122 pairs of plugs of threaded portion preformation die cavity screw and footpath 73 preliminary treatment of threaded portion base finish; First drift 111 stops action; The first station male model 11 is recessed the first station master mold 12 and is accomplished the die sinking action; Blank after 12 moulding of the first station master mold is recessed first die cavity under the thrusting action of first push rod 123, so far the first station mould, 1 process finishes.
Like Fig. 4 and shown in Figure 5; Similar with the course of action of the first station mould 1; Before the second station male model 21 and the second station master mold, 22 matched moulds; Will be in second die cavity of blank intercalation to the second station master mold 22 after 1 moulding of the first station mould, at this moment, in rearward end intercalation to the threaded portion forming cavity 222 of blank; Shoulder block between threaded portion forming cavity 222 and the bar portion forming cavity 221 keep out after the arc-shaped cavity 122a of threaded portion preformation die cavity 122 moulding segmental arc and to the blank stop bit, the leading section of blank exposes to the outside of bar portion forming cavity 221; Promote the second station male model 21 and make it and the second station master mold, 22 matched moulds; Lining bar drives second drift, 211 upsetting pressure blanks; Under the effect of second drift 211; Shoulder block between threaded portion forming cavity 222 and the bar portion forming cavity 221 reacts on blank and makes it that plastic deformation take place, and last, the shoulder block between the segmental arc after the arc-shaped cavity 122a of threaded portion preformation die cavity 122 moulding and threaded portion forming cavity 222 and bar portion forming cavity 221 is fitted; In addition, by jumping-up, wherein, fit along 212 expansions of the first head preformation die cavity and with the perisporium of the first head preformation die cavity 212 by the leading section of this blank section under the effect of second drift 211 for the blank section in the outside that exposes to bar portion forming cavity 221.After treating 2 pairs of blank completion of processing of the second station mould; The second station male model 21 is recessed the second station master mold 22; Blank after 2 processing of the second station mould is recessed second die cavity under the effect of second push rod 223, so far the second station mould, 2 process finish.
In addition, like Fig. 4 and shown in Figure 5, the first head preformation die cavity 212 is frustum, and the point diameter of the first head preformation die cavity 212 is little than the rear end diameter.The blank section of the head 71 that 212 pairs of plugs to be formed of the first head preformation die cavity screw carries out the preliminary treatment first time, and its purpose is: be that the second head preformation die cavity of the 3rd station mould 3 is treated the preliminary treatment second time that the blank section of the head 71 that the moulding plug screws carries out and prepared; In addition; The utility model is designed to frustum with the first head preformation die cavity 212; Its purpose is: the taper seat through the first head preformation die cavity 212 acts on blank; And then make blank become thin ends and thick middle shape by upsetting pressure, help the head 71 that the second head preformation mold cavity forming plug screws like this.
Like Fig. 6 and shown in Figure 7, there is not plunger mechanism in the 3rd station mould 3, promptly is fully to come the blank of upsetting pressure after 2 processing of the second station mould through the rearward end of the 3rd station male model 31.Before 3 work of the 3rd station mould, will be in blank intercalation to the three die cavitys after 2 processing of the second station mould, at this moment, the 3rd die cavity positions blank; Further; Bar portion positioning chamber 323 and threaded portion positioning chamber 324 that the 3rd die cavity includes coaxial setting and is arranged in order from front to back, promptly the utility model positions in type corresponding bar portion 72 and threaded portion base footpath 73 respectively through bar portion positioning chamber 323 and threaded portion positioning chamber 324.After treating that the blank placement finishes, the 3rd station male model 31 is driven and is moved the also leading section of upsetting pressure blank towards the 3rd station master mold 32, and at this moment, the preceding forming tank 311 that is positioned at the rearward end of the 3rd station male model 31 acts on the leading section of blank; Under the upsetting pressure effect of the 3rd station male model 31; The leading section generation plastic deformation of blank; When the front end face of the rear end face of the 3rd station male model 31 and the 3rd station master mold 32 is fitted; Preceding forming tank 311 is with the 322 mutual amalgamations of aftershaping groove and form the second head preformation die cavity, and at this moment, the leading section of the blank after plastic deformation is fitted with preceding forming tank 311 and aftershaping groove 322 fully.After treating 3 pairs of blank completion of processing of the 3rd station mould; The 3rd station male model 31 is recessed the 3rd station master mold 32; Blank after 3 processing of the 3rd station mould is recessed the 3rd die cavity under the effect of the 3rd push rod 321, so far the 3rd station mould 3 process finish.
Further, aftershaping groove 322 is frustum, and the point diameter of aftershaping groove 322 is big than the rear end diameter.Must further point out; Enclose the blank section that the second head preformation die cavity that dress forms is mainly used in the head 71 that plug to be formed is screwed by preceding forming tank 311 and aftershaping groove 322 and carry out the preliminary treatment second time; The utility model is designed to frustum with aftershaping groove 322, and its purpose is: be that the head 71 that screws of the head forming cavity 422 moulding plugs of the 4th station mould 4 is ready.
Like Fig. 8 and shown in Figure 9; The 4th station mould 4 is similar with the course of action of the first station mould 1 and the second station mould 2; Before the 4th station male model 41 and the 4th station master mold 42 matched moulds, will be positioned in the 4th die cavity through the blank after 3 processing of the 3rd station mould; The same with the 3rd die cavity; Bar portion positioning chamber 323 and threaded portion positioning chamber 324 that the 4th die cavity also includes coaxial setting and is arranged in order from front to back, promptly the utility model positions in type corresponding bar portion 72 and threaded portion base footpath 73 respectively through the bar portion positioning chamber 323 and the threaded portion positioning chamber 324 of the 4th die cavity.After treating that the blank placement finishes; Drive the 4th station male model 41 and the 4th station master mold 42 matched moulds; The head 71 that the 3rd drift 411 screws at the plug of upsetting pressure under the lining bar effect behind the second head preformation mold cavity forming; At this moment, the hexagonal of the 3rd drift 411 is towards excellent 411a punching press hexagonal counterbore 711 in head 71 that pretreated plug for the second time screws and punching out go out; Under the effect of excellent 411a, head 71 complete filling that plug screws are portion's forming cavity 422 all over the face in hexagonal, promptly fills in head 71 moulding that screw and finishes.After treating 4 pairs of blank completion of processing of the 4th station mould; The 4th station male model 41 is recessed the 4th station master mold 42; Plug behind molded the finishing screw (head 71, interior hexagonal counterbore 711, bar portion 72 and the footpath 73 whole moulding of threaded portion base finish) under the thrusting action of the 4th push rod 421, recess the 3rd die cavity, so far the utility model process finishes.
Comprehensive above-mentioned situation can be known; The utility model forms the base footpath 73, threaded portion that plug screws with head 71, bar portion 72 upsetting pressure in the lump; Removed on the one hand base footpath, threaded portion 73 turning moulding process included in the traditional handicraft, reduced middle operation, and then avoided middle operation effectively plug the screw form and position tolerance of finished product and the influence of accuracy of thread; Therefore, the utility model has improved production efficiency and can guarantee to fill in the screw form and position tolerance and the accuracy of thread of finished product effectively; On the other hand, also economical with materials has lowered production cost.
Embodiment two; Present embodiment two is with the difference of embodiment one: the first station master mold 12 is equipped with first and inserts 51; The first station master mold 12 corresponding first is inserted and 51 is offered the first installing hole 51a that inserts; First inserts 51 is flush-mounted in first and inserts in the installing hole 51a, and bar portion preformation die cavity 121 and threaded portion preformation die cavity 122 take shape in first insert 51 the inside (as shown in Figures 2 and 3) respectively.The utility model is set up first at the first station master mold 12 and is inserted 51; Like this when the plug of processing different model screws; Can insert and 51 realize that the plug of the same set of first station mould, 1 processing different model screws, and can improve the scope of application of the first station mould 1 like this through changing first of different size specification; In addition, in process, bar portion preformation die cavity 121 and threaded portion preformation die cavity 122 can cause diameter to become big owing to little by little wearing and tearing, and then can not satisfy the dimensional requirement of filling in the finished product that screws; And adopt the first station master mold 12 of said structure form can avoid above-mentioned defective effectively; Promptly can be worn and momentarily change under the out of use condition at bar portion preformation die cavity 121 and threaded portion preformation die cavity 122; And need not change the whole first station master mold 12, practiced thrift cost.
Embodiment three; Present embodiment three is with the difference of embodiment one: the rearward end of the first station male model 11, the second station male model 21, the 3rd station male model 31 and the 4th station male model 41 is equipped with second respectively and inserts 52; The first station male model 11, the second station male model 21, the 3rd station male model 31 and the 4th station male model 41 corresponding second are inserted and 52 are offered the second installing hole 52a that inserts respectively, and second inserts 52 is flush-mounted in second and inserts in the installing hole 52a; The first head preformation die cavity 212 and preceding forming tank 311 take shape in corresponding second insert 52, the first drifts 111, second drift 211 and the 3rd drift 411 respectively and are nested in and corresponding second insert 52 (like Fig. 2 to shown in Figure 9) movably.For the first station male model 11, the end is owing to contact with the first station master mold 12 and first drift 111 continually thereafter, and the end is worn easily thereafter; Similar with the wear mechanism of the rearward end of the first station male model 11, the rearward end of the second station male model 21, the 3rd station male model 31 and the 4th station male model 41 also is worn easily.In order to overcome above-mentioned defective effectively; The utility model is set up second in the rearward end of the first station male model 11, the second station male model 21, the 3rd station male model 31 and the 4th station male model 41 and is inserted 52; Wherein, Insert 51 effect of second 52 the effect and first of inserting is similar, does not give unnecessary details at this.
Embodiment four; Present embodiment four is with the difference of embodiment one: the second station master mold 22, the 3rd station master mold 32 and the 4th station master mold 42 are designed to split formula structure; Its specific constructive form is following: the second station master mold 22, the 3rd station master mold 32 and the 4th station master mold 42 include the master mold sleeve pipe 61 with containing cavity respectively; The containing cavity of master mold sleeve pipe 61 is nested with preceding internal mold 62, back internal mold 63 and master mold locking closure 64 from front to back successively; Preceding internal mold 62 is installed between master mold sleeve pipe 61 and the back internal mold 63, and between internal mold 62 and the master mold locking closure 64, master mold locking closure 64 was spirally connected with master mold sleeve pipe 61 before back internal mold 63 was installed in; Bar portion forming cavity 221 is arranged at the inside of the preceding internal mold 62 of the second station master mold 22, and threaded portion forming cavity 222 is arranged at the inside of the back internal mold 63 of the second station master mold 22; Second push rod 223, the 3rd push rod 321 and the 4th push rod 421 run through corresponding master mold locking closure 64 respectively and extend in corresponding second die cavity, the 3rd die cavity and the 4th die cavity.In addition; The bar portion positioning chamber 323 of the 3rd die cavity and the 4th die cavity is arranged at the inside of corresponding preceding internal mold 62 respectively, and the threaded portion positioning chamber 324 of the 3rd die cavity and the 4th die cavity is arranged at the inside (extremely shown in Figure 9 like Fig. 4) of corresponding back internal mold 63 respectively.
Further, preceding internal mold 62 is equipped with the 3rd and inserts 53, preceding internal mold 62 the corresponding the 3rd insert 53 offer run through fully from front to back before the 3rd installing hole 53a that inserts of internal mold 62, the 3rd inserts 53 is flush-mounted in the 3rd and inserts in the installing hole 53a; Back internal mold 63 is equipped with the 4th and inserts 54, and back internal mold 63 the corresponding the 4th is inserted and 54 offered the 4th installing hole 54a that inserts, and the 4th inserts 54 is flush-mounted in the 4th and inserts in the installing hole 54a; Bar portion forming cavity 221 and bar portion positioning chamber 323 take shape in the corresponding the 3rd insert 53 inside respectively, and threaded portion forming cavity 222 and threaded portion positioning chamber 324 take shape in the corresponding the 4th insert 54 inside respectively.Must further explain, adopted in the present embodiment the 3rd insert the 53 and the 4th insert 54 with embodiment two in first insert 51 the effect adopted similar, do not give unnecessary details at this.
Further; The 3rd station master mold 32 and the 4th station master mold 42 also include the 5th and insert 55; The 5th insert 55 before corresponding internal mold 62 the front side and be installed between corresponding master mold sleeve pipe 61 and the preceding internal mold 62, aftershaping groove 322 and head forming cavity 422 take shape in the corresponding the 5th insert 55 inside respectively.Must further explain that the 5th the 55 and the 3rd the 53 and the 4th insert 54 the effect of inserting of inserting is similar, does not give unnecessary details at this.
Above content is merely the preferred embodiment of the utility model; For those of ordinary skill in the art; According to the thought of the utility model, the part that on the specific embodiment and range of application, all can change, this description should not be construed as the restriction to the utility model.
Claims (10)
1. a plug screws and exempts to be lathed type die, it is characterized in that: it includes the first station mould (1), the second station mould (2), the 3rd station mould (3) and the 4th station mould (4) successively;
The first station mould (1) includes the first station male model (11) and the first station master mold (12) that cooperatively interacts; The first station master mold (12) offers first die cavity; Bar portion preformation die cavity (121) and threaded portion preformation die cavity (122) that first die cavity includes coaxial setting and is arranged in order from front to back; The first station male model (11) is equipped with can be along first die cavity, first drift (111) in axial sliding; The rear end side of the first station master mold (12) is equipped with and is nested in first die cavity and can be along first die cavity, first push rod (123) in axial sliding; When the first station male model (11) and first station master mold (12) matched moulds, in the rearward end intercalation of first drift (111) to the bar portion preformation die cavity (121);
The second station mould (2) includes the second station male model (21) and the second station master mold (22) that cooperatively interacts; The second station master mold (22) offers second die cavity; Bar portion forming cavity (221) and threaded portion forming cavity (222) that second die cavity includes coaxial setting and is arranged in order from front to back; The second station male model (21) is equipped with can be along second die cavity, second drift (211) in axial sliding; The rear end side of the second station master mold (22) be equipped be nested in the threaded portion forming cavity (222) and can be along the threaded portion forming cavity (222) second push rod (223) in axial sliding; The rearward end of the second station male model (21) forms the first head preformation die cavity (212) with the coaxial setting of second die cavity, and second drift (211) is located at the front of the first head preformation die cavity (212) movably;
The 3rd station mould (3) includes the 3rd station male model (31) and the 3rd station master mold (32) that cooperatively interacts; The 3rd station master mold (32) offers and is used for the bar portion (72) that limit plug screws and the 3rd die cavity in threaded portion base footpath (73); The rear end side of the 3rd station master mold (32) is equipped with and is nested in the 3rd die cavity and can be along the 3rd die cavity the 3rd push rod (321) in axial sliding; The leading section of the 3rd die cavity offers aftershaping groove (322); The rearward end of the 3rd station male model (31) offers and the preceding forming tank (311) of aftershaping groove (322) over against setting; When the 3rd station male model (31) and the 3rd station master mold (32) matched moulds, preceding forming tank (311) is dressed up the second head preformation die cavity with (322) amalgamation of aftershaping groove and one common peripheral;
The 4th station mould (4) includes the 4th station male model (41) and the 4th station master mold (42) that cooperatively interacts; The 4th station master mold (42) offers and is used for the bar portion (72) that limit plug screws and the 4th die cavity in threaded portion base footpath (73); The rear end side of the 4th station master mold (42) is equipped with and is nested in the 4th die cavity and can be along the 4th die cavity the 4th push rod (421) in axial sliding; The leading section of the 4th die cavity offers the head forming cavity (422) that is round table-like; The 4th station male model (41) is equipped with can be along the 4th die cavity the 3rd drift (411) in axial sliding; The rearward end of the 3rd drift (411) forms the hexagonal of the interior hexagonal counterbore (711) of the head (71) that is used for the punching out plug and screws and dashes rod (411a); When the 4th station male model (41) and the 4th station master mold (42) matched moulds, the hexagonal of the 3rd drift (411) is dashed rod (411a) intercalation to head forming cavity (422).
2. a kind of plug according to claim 1 screws and exempts to be lathed type die; It is characterized in that: said threaded portion preformation die cavity (122) includes arc-shaped cavity (122a) and the cylinder chamber (122b) that connects successively from front to back; The more said bar of diameter portion's preformation die cavity (121) diameter of cylinder chamber (122b) is little, and the rear end of bar portion preformation die cavity (121) is connected through arc-shaped cavity (122a) transition with the front end of cylinder chamber (122b).
3. a kind of plug according to claim 2 screws and exempts to be lathed type die; It is characterized in that: the said first station master mold (12) is equipped with first insert (51); The first station master mold (12) corresponding first insert (51) offer first installing hole (51a) of inserting; First insert (51) be flush-mounted in first and insert in the installing hole (51a), said bar portion's preformation die cavity (121) and said threaded portion preformation die cavity (122) take shape in respectively first insert (51) inside.
4. a kind of plug according to claim 1 screws and exempts to be lathed type die, it is characterized in that: the said first head preformation die cavity (212) is frustum, and the point diameter of the first head preformation die cavity (212) is little than the rear end diameter.
5. a kind of plug according to claim 1 screws and exempts to be lathed type die, it is characterized in that: said aftershaping groove (322) is frustum, and the point diameter of aftershaping groove (322) is big than the rear end diameter.
6. a kind of plug according to claim 1 screws and exempts to be lathed type die; It is characterized in that: the rearward end of the said first station male model (11), the said second station male model (21), said the 3rd station male model (31) and said the 4th station male model (41) is equipped with second insert (52) respectively; The first station male model (11), the second station male model (21), the 3rd station male model (31) and the 4th station male model (41) corresponding second insert (52) offer second installing hole (52a) of inserting respectively, second insert (52) be flush-mounted in second and insert in the installing hole (52a); The said first head preformation die cavity (212) and said before forming tank (311) take shape in corresponding second respectively and insert (52), said first drift (111), said second drift (211) and said the 3rd drift (411) are nested in corresponding second insert (52) movably.
7. a kind of plug according to claim 1 screws and exempts to be lathed type die; It is characterized in that: the said second station master mold (22), said the 3rd station master mold (32) and said the 4th station master mold (42) include the master mold sleeve pipe (61) with containing cavity respectively; The containing cavity of master mold sleeve pipe (61) is nested with preceding internal mold (62), back internal mold (63) and master mold locking closure (64) from front to back successively; Preceding internal mold (62) is installed between master mold sleeve pipe (61) and the back internal mold (63); Back internal mold (63) is installed between preceding internal mold (62) and the master mold locking closure (64); Master mold locking closure (64) is spirally connected with master mold sleeve pipe (61); Said bar portion's forming cavity (221) is arranged at the inside of the preceding internal mold (62) of the second station master mold (22), and said threaded portion forming cavity (222) is arranged at the inside of the back internal mold (63) of the second station master mold (22); Said second push rod (223), said the 3rd push rod (321) and said the 4th push rod (421) run through corresponding master mold locking closure (64) respectively and extend in corresponding said second die cavity, said the 3rd die cavity and said the 4th die cavity.
8. a kind of plug according to claim 7 screws and exempts to be lathed type die; It is characterized in that: bar portion positioning chamber (323) and threaded portion positioning chamber (324) that said the 3rd die cavity and said the 4th die cavity include coaxial setting respectively and be arranged in order from front to back; Bar portion positioning chamber (323) is arranged at the inside of the preceding internal mold (62) of corresponding the 3rd die cavity and the 4th die cavity, and threaded portion positioning chamber (324) is arranged at the inside of the back internal mold (63) of corresponding the 3rd die cavity and the 4th die cavity.
9. a kind of plug according to claim 8 screws and exempts to be lathed type die; It is characterized in that: internal mold (62) is equipped with the 3rd insert (53) before said; Before internal mold (62) the corresponding the 3rd insert (53) offer and run through the 3rd of preceding internal mold (62) installing hole (53a) of inserting from front to back fully, the 3rd insert (53) be flush-mounted in the 3rd and insert in the installing hole (53a); Said back internal mold (63) is equipped with the 4th and inserts (54), back internal mold (63) correspondence the 4th insert (54) offer the 4th installing hole (54a) of inserting, the 4th insert (54) be flush-mounted in the 4th and insert in the installing hole (54a); Said bar portion's forming cavity (221) and said bar portion's positioning chamber (323) take shape in respectively the corresponding the 3rd insert (53) inside, said threaded portion forming cavity (222) and said threaded portion positioning chamber (324) take shape in respectively the corresponding the 4th insert (54) inside.
10. a kind of plug according to claim 9 screws and exempts to be lathed type die; It is characterized in that: said the 3rd station master mold (32) and said the 4th station master mold (42) also include the 5th insert (55); The 5th insert (55) be positioned at corresponding said before internal mold (62) the front side and be installed in corresponding said master mold sleeve pipe (61) and preceding internal mold (62) between, said aftershaping groove (322) and said head forming cavity (422) take shape in respectively the corresponding the 5th insert (55) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201781679U CN202097343U (en) | 2011-05-31 | 2011-05-31 | Shoulder screw forming die free of turning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201781679U CN202097343U (en) | 2011-05-31 | 2011-05-31 | Shoulder screw forming die free of turning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202097343U true CN202097343U (en) | 2012-01-04 |
Family
ID=45383377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201781679U Expired - Lifetime CN202097343U (en) | 2011-05-31 | 2011-05-31 | Shoulder screw forming die free of turning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202097343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248117A (en) * | 2011-05-31 | 2011-11-23 | 鹏驰五金制品有限公司 | Tuning-free forming die for stop bolt |
| CN111203695A (en) * | 2020-03-23 | 2020-05-29 | 鹏驰五金制品（昆山）有限公司 | Cup head screw production process method |
-
2011
- 2011-05-31 CN CN2011201781679U patent/CN202097343U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248117A (en) * | 2011-05-31 | 2011-11-23 | 鹏驰五金制品有限公司 | Tuning-free forming die for stop bolt |
| CN111203695A (en) * | 2020-03-23 | 2020-05-29 | 鹏驰五金制品（昆山）有限公司 | Cup head screw production process method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
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| CX01 | Expiry of patent term |