CN111229917A - Production process and production die for accelerator rotating handle connecting piece - Google Patents
Production process and production die for accelerator rotating handle connecting piece Download PDFInfo
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- CN111229917A CN111229917A CN202010055820.6A CN202010055820A CN111229917A CN 111229917 A CN111229917 A CN 111229917A CN 202010055820 A CN202010055820 A CN 202010055820A CN 111229917 A CN111229917 A CN 111229917A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to a production process for an accelerator rotating handle connecting piece and a production die thereof, relating to the technical field of accelerator rotating handle production and comprising the following steps: punching and forming a metal sheet, namely punching and cutting the metal sheet which is arranged in a T shape in overlooking on a metal plate, wherein the metal sheet comprises a first substrate and a second substrate; step two: stamping the handle connecting part, namely stamping the first substrate and the second substrate to form the handle connecting part in a semicircular annular arrangement on the second substrate, and simultaneously forming a control forming part with a U-shaped cross section on the second substrate; step three: the connecting part is controlled to be punched, two pieces of formed sheets on two sides of the semi-circular ring body are punched for the second time, so that the two pieces of formed sheets form arc-shaped bodies with the cross sections in the shape of a quarter of a circular ring, and one sides of the two arc-shaped bodies far away from the semi-circular ring body are connected.
Description
Technical Field
The invention relates to the technical field of production of accelerator rotating handles, in particular to a production process and a production die for an accelerator rotating handle connecting piece.
Background
A conventional motorcycle includes a throttle twist grip (usually located to the right of a handlebar) rotatably mounted and mechanically connected to an engine controller that regulates the generation of drive torque. Typically, the throttle twist grip is connected to the engine control via at least one metal bowden cable inserted in the outer sheath, sliding with respect to the sheath itself and pushed by a first spring towards an initial position corresponding to no driving torque.
The prior art discloses a system for obtaining the angular position of a rotating handle of an oil door in a motorcycle, such as that disclosed in chinese patent with publication number CN101135274B, wherein the acquisition system is provided with a fixed support body; a rotating shaft rotatably installed in the support body; a transmission mechanically connected to the throttle twist grip and to the shaft for transmitting the movement of the throttle twist grip to the shaft itself; a main angular position sensor supported by the support body, connected to the rotating shaft to determine the angular position of the rotating shaft and adapted to provide two mutually redundant measurements of the angular position of the rotating shaft; and a control angular position sensor supported by the support body, connected to the rotating shaft to determine the angular position of the rotating shaft and adapted to provide two mutually redundant measurements of the angular position of the rotating shaft.
If the novel motorcycle handle disclosed in the chinese patent with the publication number CN209112366U is composed of a fixed handle and an accelerator handle, the fixed handle and the accelerator handle are respectively provided with a fixed handle connection box and an accelerator handle connection box, the fixed handle connection box and the accelerator handle connection box are connected through a handle connection rod, the handle connection rod is provided with a circuit forming hole and a rotary bearing, the fixed handle connection box and the accelerator handle connection box are respectively embedded with a gear-reducing shift plate and a gear-increasing shift plate, the fixed handle connection box and the accelerator handle connection box are respectively provided with a baffle plate and an embedded port, and the fixed handle connection box is internally provided with a shift plate controller.
Also as the china patent with publication number CN202320656U, the accelerator knob seat of motorcycle comprises a base connected with the motorcycle body, a hollow long tube is extended outwards from the base, a screw fixed with the motorcycle body and an accelerator cable connected with the accelerator are installed in the hollow long tube, a handle support is covered on the open end of the outer side of the hollow long tube, the handle support is composed of a connecting sleeve and an outer cover, the connecting sleeve is sleeved on the outer circumferential surface of the open end of the outer side of the hollow long tube, and the outer cover and the connecting sleeve are connected by screw thread to form an outer covering of the open end of the outer side of the hollow long tube.
As mentioned above, the rotary handle of a motorcycle generally comprises a connecting member connected with a metal bowden cable and a plastic handle sleeved on the connecting member, wherein the connecting member is generally made of metal and mainly used for connection, and the plastic handle is sleeved on the connecting member so as to facilitate a user to drive the connecting member to rotate; wherein, as shown in fig. 1, the existing connecting piece generally includes a control connecting portion fixed on the metal bowden cable by using a bolt locking manner and a handle connecting portion integrally formed with the control connecting portion, a plastic handle sleeve is arranged on the handle connecting portion, a plurality of through holes for the bolt locking and for the oil supply door line to penetrate are required to be arranged on the control connecting portion, in order to ensure the connecting strength between the control connecting portion and the metal bowden cable, the control connecting portion generally needs to be arranged in a circular tube shape, the handle connecting portion does not need to be limited, whether the control connecting portion is arranged in a circular tube shape or in a semicircular ring shape is decided by a manufacturer, however, in order to achieve the effect of reducing consumables, the connecting portion is generally arranged in a semicircular ring shape.
The above prior art solutions have the following drawbacks: the external diameter of metal bowden cable generally can be greater than the system handle of moulding, consequently, the pipe diameter of control connection portion can slightly be greater than the pipe diameter of grab handle connection portion, lead to forming the necking portion between control connection portion and the grab handle connection portion, consequently, in the connecting piece production of throttle twist grip, generally can adopt the cutter, piercing press and necking machine are processed the tubular metal resonator in proper order and are accomplished metal tubular product respectively and cut off the shaping, perforation punching hole shaping and necking portion reduce the shaping work, required equipment is more, lead to the cost great, consequently need improve.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a production process for an accelerator rotating handle connecting piece, which effectively reduces the production cost, and the invention aims to provide a production mold capable of realizing the production process.
The above object of the present invention is achieved by the following technical solutions:
a production process for a throttle twist grip connector comprises the following steps:
the method comprises the following steps: punching and forming a metal sheet, namely punching and cutting the metal sheet which is arranged in a T shape in overlooking on a metal plate, wherein the metal sheet comprises a first base plate and a second base plate, the first base plate is positioned at one end of the second base plate, and a plurality of through holes are punched in the first base plate;
step two: the handle connecting part is punched and formed, the first substrate and the second substrate are punched, the second substrate is enabled to form a handle connecting part which is arranged in a semicircular ring shape, meanwhile, the second substrate is enabled to form a control forming part with a U-shaped cross section, the control forming part comprises a semicircular ring body which is concentric with the handle connecting part and has a pipe diameter slightly larger than that of the handle connecting part and two forming sheets which are respectively positioned on two sides of the semicircular ring body, and a necking part is formed between the semicircular ring body and the handle connecting part;
step three: the control connecting portion stamping forming carries out the secondary punching press to two shaping sheets on lieing in semi-ring body both sides for two shaping sheets all form the arc body that transversal personally submitting quarter ring form set up, and make one side that semi-ring body was kept away from to twice arc body meet, and at this moment, semi-ring body and twice arc body form control connecting portion.
By adopting the technical scheme, the first base plate with a plurality of through holes and the second base plate which is integrally formed with the first base plate are formed by punching in the first step, the first base plate and the second base plate can be combined to form a metal sheet which is arranged in a T-shaped overlook shape, the second base plate is directly punched into the grab handle connecting part with a semicircular ring-shaped cross section by the second step, the first base plate is punched into the control forming part with a U-shaped cross section, the grab handle connecting part is convenient to be formed at one time by adopting the medium punching mode, two forming sheets are punched at one time to form an arc-shaped body by arranging three forming sheets, so that the arc-shaped body and the semicircular ring body can be matched to form the control connecting part which has the inner diameter larger than that of the grab handle connecting part and is arranged at the same circle center as the grab handle connecting part, after the process is adopted, the connecting piece of the accelerator rotating handle can be, the equipment cost is low, and need not worry that the connecting piece shape is impaired when adopting blanking or stamping die to add man-hour, and the yield effectively improves to, the purchasing cost of metal sheet is lower than the purchasing cost of metal tubular product, and occupation space is little, and the raw materials cost also obtains effective control, thereby reaches the effect of many-sided reduction connecting piece manufacturing cost.
The present invention in a preferred example may be further configured to: in the first step, a dovetail groove is formed in one end of the first substrate, a dovetail body with the same shape as the dovetail groove is formed in the other end of the second substrate, and the dovetail body is clamped in the dovetail groove when the third step is performed.
By adopting the technical scheme, when the metal plate is cut in the first step, the dovetail groove and the dovetail body are respectively cut at two ends of the first substrate, the dovetail body is clamped in the dovetail groove when the two formed sheets are punched in the third step, one side, connected with the two arc-shaped bodies, of each dovetail groove can be firmly fixed together through the clamping relation between the dovetail body and the dovetail groove, and therefore the effect of ensuring the strength of the connection control part formed by adopting an assembly mode is achieved.
The present invention in a preferred example may be further configured to: in the first step, when the metal sheet is punched and formed, transition parts which are arranged in a fillet shape are arranged at the positions where the left side and the right side of the second substrate are connected with the second substrate.
By adopting the technical scheme, when the metal plate is blanked in the first step, the transition part is blanked at the part where the two sides of the first substrate and the second substrate are connected, so that the effect that the positions where the semi-circular ring body and the two ends of the necking part are connected generate large crease marks when the necking part is blanked and formed in the second step can be avoided.
The second aim of the invention is realized by the following technical scheme:
the utility model provides a production mould for as above production technology, includes blanking die, ordinary stamping die and side stamping die, blanking die is used for the blanking sheetmetal, ordinary stamping die is used for the stamping forming of grab handle connecting portion and semicircle ring body, side stamping die is used for the stamping forming of twice arc.
Through adopting above-mentioned technical scheme, can cut out the sheetmetal through the blanking mould, thereby can accomplish step one, can the stamping forming go out the transversal cyclic annular grab handle connecting portion of personally submitting through ordinary stamping mould, transversal control shaping portion of personally submitting "U" font shape setting and the throat that is located between grab handle connecting portion and the control shaping portion, thereby can accomplish step two, can carry out side blow molding to two sheetmetals respectively through the side blanking mould, thereby make two sheetmetals form the twice arc body that meets in order to accomplish step three.
The present invention in a preferred example may be further configured to: the blanking die comprises a first upper die and a first lower die, wherein a first forming bulge which is the same as the metal sheet in shape is arranged on the first lower die, a plurality of forming holes which correspond to the through hole shapes in position are formed in the first forming bulge, a first forming cavity is arranged on the first upper die, and a plurality of forming columns which correspond to the forming holes in shape and position are arranged in the first forming cavity.
Through adopting above-mentioned technical scheme, during the use, only need install blanking die on the press, then place the metal sheet on first lower mould, through the first mould of press drive and first lower mould compound die at last, during first mould and first lower mould compound die, first shaping chamber can be punched out the sheetmetal with the protruding cooperation of first shaping, can be punched out the perforation through the cooperation between shaping post and the shaping hole.
The present invention in a preferred example may be further configured to: ordinary stamping die includes mould and second lower mould on the second, be provided with the second forming die cavity that sets up the same with grab handle connecting portion, throat and semicircle ring body outer wall shape on the second lower mould, it is protruding to be provided with the second forming on the second mould, the second forming is protruding to include the shaping head that appearance and grab handle connecting portion, throat and semicircle ring body inner wall shape set up the same and set up in the spacing portion between the mould in order to be used for restricting the shaping sheet position on shaping head and the second.
Through adopting above-mentioned technical scheme, during the use, only need install ordinary stamping die on the press, then place the sheetmetal on the second lower mould, go up mould and second lower mould compound die through press drive second at last, when mould and second lower mould compound die on the second, the protruding and second die cavity cooperation of second shaping can be with first base plate and second base plate stamping forming respectively for control shaping portion and grab handle connecting portion, can avoid the shaping sheet inwards to buckle when semicircle ring body stamping forming through spacing portion.
The present invention in a preferred example may be further configured to: the second lower die is provided with a plurality of limiting columns arranged around the second forming cavity, and when the metal sheet is placed on the second lower die, the outer wall of each limiting column is abutted to the metal sheet.
By adopting the technical scheme, the metal sheet can be conveniently positioned and placed on the second lower die through the limiting column.
The present invention in a preferred example may be further configured to: the side blow moulding-die utensil includes that third lower mould, third go up mould, two sets of side blow shaping piece that sets up respectively on the third lower mould left and right sides and set up the driving piece that goes up the mould in order to be used for driving two side blow shaping pieces and remove in opposite directions on the third, be provided with on the third lower mould with third lower mould wherein one side and third lower mould upper surface intercommunication and cross section and the same third die cavity that sets up of control shaping portion outer wall shape, be provided with the internal diameter limit post that external diameter and control connecting portion internal diameter the same set up in the third die cavity, two side blow shaping piece is located the left and right sides of limit post respectively, two the one side that side blow shaping piece set up in opposite directions all is provided with sets up an arc wall that is used for the arc body with the internal diameter is the same with control connecting portion external diameter.
Through adopting above-mentioned technical scheme, during the use, only need install the side blow mould on the press, then peg graft the semicircle ring body in the clearance between internal diameter limit post and the third one-tenth die cavity, make the semicircle ring body can with the outer wall laminating of internal diameter limit post, and make two shaping sheets laminate with the both sides face of third one-tenth die cavity respectively, go up mould and third lower mould compound die through the press drive third at last, when going up mould and third lower mould compound die, control two side blow shaping piece and move in opposite directions through the driving piece that sets up on the third and make two side blow shaping pieces respectively to two side blow shaping, can make two shaping sheets take place to buckle in order to form two arcs respectively through the arc wall.
The present invention in a preferred example may be further configured to: the utility model discloses a spacing post, including the first lower mould, the first lower mould is provided with the spacing post left and right sides, be provided with the guide way that twice were located respectively on the third lower mould, still be provided with twice lower extreme respectively with the storage tank of twice guide way intercommunication on the third lower mould, two the one end that the guide way set up in opposite directions all communicates with the third becomes the die cavity, two side blow shaping piece slides respectively and connects in twice guide way, two the upside of the opposite one end that sets up of side blow shaping piece all is provided with the slope spigot surface, the driving piece includes that two set up on the third mould and wear to establish the butt post of twice storage tank respectively, two the lower extreme of butt post respectively with twice slope spigot surface butt.
Through adopting above-mentioned technical scheme, can restrict the slip direction of two side blow shaping pieces respectively through the guide way to make the butt post can incline the spigot surface butt cooperation through the storage tank, when making mould and third lower mould compound die on the third, relative downstream can be done along the slope spigot surface to two butt posts, thereby make two side blow shaping pieces can be done and move in opposite directions in order to reach the effect of side blow pressure sheet metal.
The present invention in a preferred example may be further configured to: and a pressing rod positioned between the two abutting columns is further arranged on the third upper die, the central plane of the pressing rod is superposed with the joint line of the two arc-shaped bodies, and when the two side punching forming blocks are completely closed, the pressing rod is positioned between the two side punching forming blocks and is abutted against the dovetail body.
Through adopting above-mentioned technical scheme, because the twice arc body all is the setting of quarter ring form, consequently, the radian when the dovetail body receives the extrusion bending is greater than the quarter circle, leads to two side blow shaping pieces to be difficult to carry out the punching press bending to the dovetail body, consequently, carries out vertical punching press to the dovetail body through the depression bar to make the dovetail body enough block locate in the dovetail.
In summary, the invention includes at least one of the following beneficial technical effects:
the connecting piece which is arranged in a tubular shape is formed by adopting a blanking and stamping matching mode, the traditional production mode of shearing and reducing matching is changed, the material cost and the cost of production equipment are effectively reduced, and the economic benefit is effectively improved;
the raw material is a metal plate, so that the purchasing cost is low, the transportation cost is low, the occupied space is small, the connecting piece is not easy to damage due to extrusion, and the production benefit of the connecting piece can be further improved;
the mode of punch forming is adopted, and the mode of clamping and reducing the diameter of the diameter reducing machine is adopted, so that the production efficiency is obviously improved, and the production benefit of the connecting piece can be further improved;
the connecting piece is formed without producing a spatial extrusion effect on the raw materials, so that the requirement on production equipment is low, and the yield is high;
the structure of the used die is simple, autonomous production or purchase cost is low, the device for driving the die to work is a common press machine of a metal processing factory, the investment cost is low, and the loss is small after a production plan is cancelled.
Drawings
FIG. 1 is a schematic view of a prior art connector;
FIG. 2 is a schematic flow chart of the production process in the present embodiment;
FIG. 3 is a schematic structural diagram of a workpiece after completion of the first step of the manufacturing process in this embodiment;
FIG. 4 is a schematic structural diagram of the workpiece after completion of the second step of the manufacturing process in this embodiment;
FIG. 5 is a schematic structural diagram of the workpiece after the third step of the production process is completed in this embodiment;
FIG. 6 is a schematic structural view of the production mold in the present embodiment;
fig. 7 is a schematic structural view of a blanking die in the present embodiment;
fig. 8 is a schematic view of the internal structure of the blanking die in the present embodiment;
fig. 9 is a schematic structural view of a general stamping die in the present embodiment;
FIG. 10 is a schematic structural view of a side press mold in the present embodiment;
fig. 11 is a schematic sectional view of the side press mold in the present embodiment.
Reference numerals: 1. a control connection; 11. a first substrate; 12. a dovetail groove; 13. a dovetail body; 14. a semi-torus; 15. forming a sheet; 16. a control molding section; 17. an arc-shaped body; 2. a handle connecting part; 21. a second substrate; 22. shrinking the neck part; 3. perforating; 4. a transition section; 5. blanking a die; 51. a first lower die; 511. a lower base; 512. a lower template; 513. a first molding projection; 514. a guide post; 515. a first spring; 516. a through groove; 517. forming holes; 52. a first upper die; 521. a first molding cavity; 522. forming a column; 6. a common stamping die; 61. a second lower die; 611. a second molding cavity; 612. a limiting column; 62. a second upper die; 621. a limiting part; 622. a forming head; 623. a second forming projection; 7. a side stamping die; 71. a third lower die; 711. a third molding cavity; 712. a guide groove; 713. a containing groove; 72. a third upper die; 73. side punching to form blocks; 731. an arc-shaped slot; 732. an inclined guide surface; 74. a drive member; 741. a butting post; 742. a yielding groove; 75. an inner diameter defining column; 76. a reset lever; 761. a second spring; 762. a limiting ring; 77. a pressure lever.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 2, the invention discloses a production process for a connecting piece of an accelerator rotating handle, which comprises the following steps:
the method comprises the following steps: blanking a metal sheet, namely punching the metal sheet which is arranged in a T shape in a plan view on a metal plate, wherein the metal sheet comprises a first base plate 11 and a second base plate 21, the first base plate 11 is positioned on one end of the second base plate 21, and a plurality of through holes 3 are punched on the first base plate 11;
step two: the handle connecting part 2 is punched and formed, the first substrate 11 and the second substrate 21 are punched, the second substrate 21 is made to form the handle connecting part 2 which is arranged in a semicircular ring shape, meanwhile, the second substrate 21 is made to form a control forming part 16 with the cross section being in a U-shaped shape, the control forming part 16 comprises a semicircular ring body 14 which is concentric with the handle connecting part 2 and has a pipe diameter slightly larger than that of the handle connecting part 2 and two forming sheets 15 which are respectively positioned on two sides of the semicircular ring body 14, and a necking part 22 is formed between the semicircular ring body 14 and the handle connecting part 2;
step three: the control connection portion 1 is formed in a punching mode, two forming sheets 15 on two sides of the semi-circular ring body 14 are subjected to secondary punching, the two forming sheets 15 are made to form an arc-shaped body 17 with a cross section being in a quarter-circle-shaped arrangement, one side of the two arc-shaped bodies 17 far away from the semi-circular ring body 14 is made to be connected, and at the moment, the semi-circular ring body 14 and the two arc-shaped bodies 17 form the control connection portion 1.
As shown in fig. 3 and 4, in the first step, when the metal sheet is formed by punching, transition portions 4 arranged in a fillet shape are disposed at the positions where the left and right sides of the second substrate 21 are connected to the second substrate 21, and when the handle connecting portion 2 in the second step is subjected to punch forming, the transition portions 4 generate a slight tensile deformation, so that the tensile stress received at the positions where the semicircular body 14 is connected to the two ends of the constricted portion 22 is effectively reduced, thereby achieving the connection strength between the semicircular body 14 and the connecting portions at the two ends of the constricted portion 22, and achieving the effect of preventing wrinkles.
As shown in fig. 3 and 5, when the metal sheet is punched and formed in the first step, a dovetail groove 12 is punched at one end of the first base plate 11, and a dovetail body 13 corresponding to the shape and position of the dovetail groove 12 is punched at the other end of the second base plate 21, when the second step is performed, the dovetail groove 12 and the dovetail body 13 are respectively positioned at one side of the two formed sheet materials 15 far away from the semi-circular ring body 14, and when the third step is performed, the dovetail body 13 is clamped in the dovetail groove 12 so that the sides of the two arc bodies 17 which are connected are tightly connected.
As shown in fig. 6, a production die for the production process as described above includes a blanking die 5 for punching a metal plate with a plurality of metal pieces provided to the through-holes 3 in a T-shape in plan view, a normal punching die 6 for punching the metal plate into the control connection portion 1 and the control forming portion 16 connected to one end of the control connection portion 1, and a side punching die 7 for punching the control connection portion 1 into the control connection portion 1; wherein, blanking die 5, ordinary stamping die 6 and side stamping die 7 all work through the press drive.
As shown in fig. 7 and 8, the blanking die 5 includes a first upper die 52 and a first lower die 51, a first forming protrusion 513 having the same shape as the metal sheet is disposed on the first lower die 51, and a first forming cavity 521 cooperating with the first forming protrusion 513 for generating a shearing force to the metal sheet is disposed on the first upper die 52; wherein, a plurality of molding holes 517 corresponding to the shape and position of each through hole 3 are arranged on the first molding protrusion 513, a plurality of molding columns 522 corresponding to the shape and position of the molding holes 517 are arranged on the first molding cavity 521 for generating shearing force, and each molding column 522 is communicated with the upper surface of the first upper die 52.
Further, the first lower die 51 includes a lower base 511 and a lower die plate 512 disposed on the upper surface of the lower base 511, the lower base 511 is provided with a plurality of guide posts 514 passing through the lower die plate 512, a plurality of first springs 515 having upper and lower ends respectively connected to the lower die plate 512 and the lower die plate are disposed between the lower die plate 512 and the lower die plate, the lower die plate 512 is provided with a through groove 516 having the same cross-sectional shape as the first forming protrusion 513 and having upper and lower ends respectively communicated with the lower die plate 512 and the upper and lower sides, and the first forming protrusion 513 is disposed on the lower surface of the upper base and is inserted into the through groove 516.
When a metal sheet needs to be punched, firstly, a metal plate is placed on the first lower die 51 to enable the metal plate to be attached to the upper surface of the lower die plate 512, then the first upper die 52 is driven to move downwards through a press machine to enable the punching die 5 to be matched, in the matching process of the punching die 5, the upper die is matched with the lower die plate 512 to compress the metal plate firstly, then the upper die continues to move downwards, at the moment, the first forming protrusion 513 moves upwards relative to the lower die plate 512, so that the upper side of the first forming protrusion 513 can extend out of the lower die plate 512 to punch the metal plate, meanwhile, the forming hole 517 arranged on the first forming protrusion 513 is matched with the forming column 522 arranged in the first forming cavity 521 to punch a through hole 3 on the metal plate, and thus the effect of punching the metal plate with the through hole 3 is achieved, wherein after the metal sheet is punched and formed, the press machine drives the upper die to move upwards, at this time, the upper die plate is gradually moved upward by the elastic force of the first spring 515, thereby facilitating the punching work of the next metal piece by the worker.
As shown in fig. 9, the general stamping die 6 includes a second upper die 62 and a second lower die 61, a second molding cavity 611 is provided on the second lower die 61, a second molding protrusion 623 is provided on the second upper die 62, a plurality of limiting columns 612 are provided on the second lower die 61 around the second molding cavity 611, and when a metal sheet is placed on the second lower die 61, the outer wall of each limiting column 612 abuts against the outer periphery of the metal sheet; the shape of the second molding cavity 611 is the same as the shape of the outer wall of the handle connecting part 2, the necking part 22 and the semi-circular ring 14, and the second molding protrusion 623 comprises a molding head 622 with the same shape as the inner wall of the handle connecting part 2, the necking part 22 and the semi-circular ring 14 and a limiting part 621 arranged between the molding head 622 and the second upper die 62 and used for limiting the position of the molded sheet 15.
When the grab handle connecting part 2 needs to be punched and formed, firstly, a metal sheet is placed in the enclosed area of each limiting column 612 so as to be covered on the second molding cavity 611, then the upper die is driven by a press machine to move downwards, and in the process of moving downwards of the upper die, the second molding protrusions 623 and the second molding cavity 611 are matched to perform punch forming on the metal sheet, so that the metal sheet can be bent to form a shape the same as that of the inner wall of the second molding cavity 611, and the metal sheet can be punched to form the grab handle connecting part 2 and the control forming part 16.
As shown in fig. 10 and 11, the side stamping die 7 includes a third lower die 71, a third upper die 72, two side stamping blocks 73 respectively disposed on the left and right sides of the third lower die 71, a driving member 74 disposed on the third upper die 72 for driving the two side stamping blocks 73 to move oppositely, and a pressing rod 77 disposed on the lower surface of the third upper die 72 and located between the two side stamping blocks 73, wherein a central surface of the pressing rod 77 is disposed to coincide with the intersection line of the two arc-shaped bodies 17, and when the two side stamping blocks 73 are completely closed, the pressing rod 77 is located between the two side stamping blocks 73 and abuts against the dovetail body 13; the third lower die 71 is provided with a third forming cavity 711 with a cross section identical to the shape of the outer wall of the control forming part 16, an inner diameter limiting column 75 with an outer diameter identical to the inner diameter of the control connecting part 1 is arranged in the third forming cavity 711, the two side punching forming blocks 73 are respectively positioned on the left side and the right side of the inner diameter limiting column 612, and the surfaces of the two side punching forming blocks 73 opposite to each other are provided with arc-shaped grooves 731 with an inner diameter identical to the outer diameter of the control connecting part 1 and used for punching and forming the arc-shaped body 17.
One end of the third molding cavity 711 is communicated with one side of the third lower die 71, the upper side of the third molding cavity 711 is communicated with the upper surface of the third lower die 71, a gap is reserved between the inner diameter limiting column 75 and the third molding cavity 711, and when the control molding part 16 needs to be installed in the third molding cavity 711, the control molding part 16 only needs to be inserted into the gap between the third molding cavity 711 and the third molding column 522.
Two guide grooves 712 respectively positioned on the left side and the right side of the third molding cavity 711 are arranged in the third lower die 71, two accommodating grooves 713 with lower ends respectively communicated with the two guide grooves 712 are also arranged on the third lower die 71, and the driving member 74 comprises two abutting columns 741 which are arranged on the third upper die 72 and respectively penetrate through the two accommodating grooves 713; wherein, the opposite ends of the guide grooves 712 are both communicated with the third molding cavity 711, the two side-punching molding blocks 73 are respectively connected in the two guide grooves 712 in a sliding manner, and the upper sides of the opposite ends of the two side-punching molding blocks 73 are both provided with inclined guide surfaces 732, and the lower ends of the abutting columns 741 respectively inserted into the two accommodating grooves 713 are respectively abutted against the two inclined guide surfaces 732.
Wherein, the opposite ends of the two side punching forming blocks 73 are respectively provided with a reset rod 76 extending out of the third lower die 71, the ends of the two reset rods 76 far away from the third lower die 71 are respectively provided with a limit ring 762, the two limit rings 762 are respectively sleeved with a second spring 761, and the two ends of each second spring 761 are respectively abutted against the side wall of the third lower die 71 and the limit rings 762; each of the abutting columns 741 is provided with a yielding slot 742, and when the lower end of the abutting column 741 is inserted into the guiding slot 712, the two release rods 76 respectively penetrate through the two yielding slots 742.
When the connecting control portion 1 is to be punched and formed, the control forming portion 16 is first installed in the third forming cavity 711, then the third upper die 72 is driven by the press to move downwards, when the third upper die 72 moves downwards, the abutting columns 741 abutting against the inclined guide surfaces 732 arranged on the side punch forming blocks 73 drive the side punch forming blocks 73 to move horizontally towards the positions of the axes of the inner diameter limiting columns 75, so that the two side punch forming blocks 73 can respectively punch two formed sheets 15, and when the arc-shaped grooves 731 of the two side punch forming blocks 73 completely abut against the two formed sheets 15, the third upper die 72 continues to move downwards, at this time, the two abutting columns 741 abut against opposite end surfaces of the two side punch forming blocks 73, so that the two side punch forming blocks 73 cannot continue to move, and meanwhile, during the process that the third upper die 72 continues to move downwards, the pressing rod 77 presses the warped side of the two formed sheets 15, so that the dovetail body 13 and the dovetail groove 12 respectively disposed on the two formed sheets 15 can be clamped with each other, and the control connection portion 1 can be completely formed.
The implementation principle of the embodiment is as follows:
first, a metal plate is placed in a blanking die 5 to be blanked, thereby obtaining a metal sheet which is arranged in a "T" shape in plan view, then, the metal sheet is placed in a general stamping die 6 to be stamped in the vertical direction, thereby obtaining a grip connecting portion 2 and a control forming portion 16 connected to one end of the grip connecting portion 2, and finally, the control forming portion 16 is placed in a side stamping die 7, thereby enabling the control forming portion 16 to form a control connecting portion 1.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A production process for a throttle rotating handle connecting piece is characterized by comprising the following steps:
the method comprises the following steps: the metal sheet is punched and formed, the metal sheet which is arranged in a T shape in overlooking is punched and formed on a metal plate, the metal sheet comprises a first base plate (11) and a second base plate (21), the first base plate (11) is positioned on one end of the second base plate (21), and a plurality of through holes (3) are punched and formed in the first base plate (11);
step two: the handle connecting part (2) is punched and formed, a first substrate (11) and a second substrate (21) are punched, the second substrate (21) is made to form the handle connecting part (2) which is arranged in a semicircular ring shape, meanwhile, the second substrate (21) is made to form a control forming part (16) which is arranged in a U-shaped cross section, the control forming part (16) comprises a semicircular ring body (14) which is concentric with the handle connecting part (2) and has a pipe diameter slightly larger than that of the handle connecting part (2) and two forming sheets (15) which are respectively positioned on two sides of the semicircular ring body (14), and a necking part (22) is formed between the semicircular ring body (14) and the handle connecting part (2);
step three: control connecting portion (1) stamping forming carries out the secondary punching press to two shaping sheets (15) on being located semi-ring body (14) both sides for two shaping sheets (15) all form arc body (17) of transversal personally submitting quarter ring form setting, and make twice arc body (17) keep away from one side of semi-ring body (14) and meet, and at this moment, semi-ring body (14) and twice arc body (17) form control connecting portion (1).
2. The production process for the throttle twist grip connector according to claim 1, wherein: in the first step, a dovetail groove (12) is formed in one end of the first substrate (11), a dovetail body (13) with the same shape as the dovetail groove (12) is formed in the other end of the second substrate (21), and the dovetail body (13) is clamped in the dovetail groove (12) in the third step.
3. The production process for the throttle twist grip connector according to claim 1, wherein: in the first step, when the metal sheet is punched and formed, transition parts (4) which are arranged in a fillet shape are arranged at the parts of the left side and the right side of the second substrate (21) which are connected with the second substrate (21).
4. A production mold for use in the production process according to any one of claims 1 to 3, characterized in that: including blanking die (5), ordinary stamping die (6) and side stamping die (7), blanking die (5) are used for the blanking sheetmetal, ordinary stamping die (6) are used for the stamping forming of grab handle connecting portion (2) and semicircle ring body (14), side stamping die (7) are used for the stamping forming of twice arc (17).
5. A production mold used in the production process according to claim 4, characterized in that: the blanking die (5) comprises a first upper die (52) and a first lower die (51), a first forming protrusion (513) which is the same as the shape of the metal sheet is arranged on the first lower die (51), a plurality of forming holes (517) which correspond to the shapes and the positions of the through holes (3) are arranged on the first forming protrusion (513), a first forming cavity (521) is arranged on the first upper die (52), and a plurality of forming columns (522) which are correspondingly arranged with the shapes and the positions of the forming holes (517) are arranged on the first forming cavity (521).
6. A production mold used in the production process according to claim 4, characterized in that: ordinary stamping die (6) are including mould (62) and second lower mould (61) on the second, be provided with on second lower mould (61) with grab handle connecting portion (2), necking portion (22) and semicircle ring body (14) outer wall shape the same second die cavity (611) that sets up, be provided with the protruding (623) of second shaping on mould (62) on the second, protruding (623) of second shaping include appearance and grab handle connecting portion (2), necking portion (22) and semicircle ring body (14) inner wall shape the same shaping head (622) that sets up and set up in spacing portion (621) between shaping head (622) and the second in order to be used for restricting shaping sheet (15) position.
7. A production mold used in the production process according to claim 6, characterized in that: the second lower die (61) is provided with a plurality of limiting columns (612) which are arranged around the second forming cavity (611), and when the metal sheet is placed on the second lower die (61), the outer wall of each limiting column (612) is abutted to the metal sheet.
8. A production mold used in the production process according to claim 4, characterized in that: side stamping die (7) include third lower mould (71), mould (72), two sets respectively set up side blow shaping piece (73) on the third lower mould (71) left and right sides and set up driving piece (74) that mould (72) were gone up in order to be used for driving two side blow shaping pieces (73) and move in opposite directions on third lower mould (71), be provided with on third lower mould (71) with third lower mould (71) wherein one side and third lower mould (71) upper surface intercommunication and cross section and the same third molding chamber (711) that sets up of control shaping portion (16) outer wall shape, be provided with internal diameter limit post (75) that external diameter and control connecting portion (1) internal diameter are the same in third molding chamber (711), two side blow shaping piece (73) are located respectively on the left and right sides of limit post (612), two the one side that side blow shaping piece (73) set up in opposite directions all is provided with the internal diameter and sets up an arc that is used for stamping shaping arc body (17) with control connecting portion (1) external diameter is the same A slot (731).
9. A production mold for use in the production process according to claim 8, characterized in that: the stamping die is characterized in that two guide grooves (712) which are respectively located on the left side and the right side of a limiting column (612) are formed in the third lower die (71), two containing grooves (713) with lower ends respectively communicated with the two guide grooves (712) are further formed in the third lower die (71), one ends of the guide grooves (712) which are oppositely arranged are communicated with the third forming cavity (711), two side stamping forming blocks (73) are respectively connected in the two guide grooves (712) in a sliding mode, inclined guide surfaces (732) are arranged on the upper sides of the ends, opposite to the side stamping forming blocks (73), of the side stamping forming blocks, driving pieces (74) comprise two abutting columns (741) which are arranged on the third upper die (72) and respectively penetrate through the two containing grooves (713), and the lower ends of the abutting columns (741) are respectively abutted against the two inclined guide surfaces (732).
10. A production mold for use in the production process according to claim 9, characterized in that: the third upper die (72) is further provided with a pressing rod (77) located between two abutting columns (741), the central plane of the pressing rod (77) is overlapped with the cross joint line of the two arc-shaped bodies (17), and when the two side punching forming blocks (73) are completely closed, the pressing rod (77) is located between the two side punching forming blocks (73) and abuts against the dovetail body (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010055820.6A CN111229917A (en) | 2020-01-17 | 2020-01-17 | Production process and production die for accelerator rotating handle connecting piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010055820.6A CN111229917A (en) | 2020-01-17 | 2020-01-17 | Production process and production die for accelerator rotating handle connecting piece |
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| CN111229917A true CN111229917A (en) | 2020-06-05 |
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| CN202010055820.6A Pending CN111229917A (en) | 2020-01-17 | 2020-01-17 | Production process and production die for accelerator rotating handle connecting piece |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745050A (en) * | 2020-08-04 | 2020-10-09 | 杭州统奔模具制造有限公司 | Swivel chair short leg pipe forming die |
| CN111968505A (en) * | 2020-07-31 | 2020-11-20 | 昆山国显光电有限公司 | Laminating system and laminating device for curved surface display device |
| CN114346037A (en) * | 2021-12-23 | 2022-04-15 | 江门市新会区浩潮五金制品有限公司 | Complete set of mould for arc-shaped handle and forming process thereof |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07503411A (en) * | 1992-12-04 | 1995-04-13 | メツツエラー ギメタル アクチエンゲゼルシヤフト | Manufacturing method for tubular parts |
| US5485664A (en) * | 1995-03-10 | 1996-01-23 | Huang; Chung-Shyan | Method for producing globe-shaped bells with single piece shells |
| JP2003285117A (en) * | 2002-03-26 | 2003-10-07 | Sumitomo Metal Ind Ltd | Method for manufacturing mother pipe for bulging, bulged article and method for manufacturing the same |
| CN101648246A (en) * | 2009-09-02 | 2010-02-17 | 林智勇 | Special silk blank machine |
| CN102124909A (en) * | 2010-01-14 | 2011-07-20 | 深圳市千兆绿色科技有限公司 | Lawn punching pipe and manufacturing method thereof |
| CN102205372A (en) * | 2011-04-15 | 2011-10-05 | 江苏超力电器有限公司 | Disposable arc-rolling and forming die |
| CN102909289A (en) * | 2012-10-17 | 2013-02-06 | 扬州嘉华电气有限公司 | Method for manufacturing stainless steel lamp ring of oven |
| CN103511825A (en) * | 2012-06-15 | 2014-01-15 | 上海汇众汽车制造有限公司 | Lining casing pipe for car frame and forming method thereof |
| CN204093928U (en) * | 2013-12-13 | 2015-01-14 | 深圳市三合通发精密五金制品有限公司 | One-time formed circle_curling die tool |
| CN205650691U (en) * | 2016-04-06 | 2016-10-19 | 泰山体育产业集团有限公司 | Thin -walled pipe both sides are simultaneously towards arc mould |
| CN206882518U (en) * | 2017-01-18 | 2018-01-16 | 浙江索特电气有限公司 | Magnetic conduction presss from both sides and its manufacture mould |
| CN108448782A (en) * | 2018-04-17 | 2018-08-24 | 东莞市震峰实业有限公司 | A kind of micro motor shell and its production moulding process |
| CN208467016U (en) * | 2018-06-28 | 2019-02-05 | 浙江正鼎汽车零部件有限公司 | Mold for edge rolling |
| CN109500251A (en) * | 2018-12-27 | 2019-03-22 | 苏州鑫捷顺五金机电有限公司 | One kind being used for the one-time formed mold mechanism of curling process |
| CN209407134U (en) * | 2018-11-27 | 2019-09-20 | 天津晟科机械制造有限公司 | A kind of quick steel plate roll device |
| CN209697841U (en) * | 2019-01-30 | 2019-11-29 | 淮安茂华管业有限公司 | Sheet metal edge rolling device |
| CN110586758A (en) * | 2019-09-20 | 2019-12-20 | 江苏易实精密科技股份有限公司 | Integrally-formed machining system and machining method for rolled shell |
-
2020
- 2020-01-17 CN CN202010055820.6A patent/CN111229917A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07503411A (en) * | 1992-12-04 | 1995-04-13 | メツツエラー ギメタル アクチエンゲゼルシヤフト | Manufacturing method for tubular parts |
| US5485664A (en) * | 1995-03-10 | 1996-01-23 | Huang; Chung-Shyan | Method for producing globe-shaped bells with single piece shells |
| JP2003285117A (en) * | 2002-03-26 | 2003-10-07 | Sumitomo Metal Ind Ltd | Method for manufacturing mother pipe for bulging, bulged article and method for manufacturing the same |
| CN101648246A (en) * | 2009-09-02 | 2010-02-17 | 林智勇 | Special silk blank machine |
| CN102124909A (en) * | 2010-01-14 | 2011-07-20 | 深圳市千兆绿色科技有限公司 | Lawn punching pipe and manufacturing method thereof |
| CN102205372A (en) * | 2011-04-15 | 2011-10-05 | 江苏超力电器有限公司 | Disposable arc-rolling and forming die |
| CN103511825A (en) * | 2012-06-15 | 2014-01-15 | 上海汇众汽车制造有限公司 | Lining casing pipe for car frame and forming method thereof |
| CN102909289A (en) * | 2012-10-17 | 2013-02-06 | 扬州嘉华电气有限公司 | Method for manufacturing stainless steel lamp ring of oven |
| CN204093928U (en) * | 2013-12-13 | 2015-01-14 | 深圳市三合通发精密五金制品有限公司 | One-time formed circle_curling die tool |
| CN205650691U (en) * | 2016-04-06 | 2016-10-19 | 泰山体育产业集团有限公司 | Thin -walled pipe both sides are simultaneously towards arc mould |
| CN206882518U (en) * | 2017-01-18 | 2018-01-16 | 浙江索特电气有限公司 | Magnetic conduction presss from both sides and its manufacture mould |
| CN108448782A (en) * | 2018-04-17 | 2018-08-24 | 东莞市震峰实业有限公司 | A kind of micro motor shell and its production moulding process |
| CN208467016U (en) * | 2018-06-28 | 2019-02-05 | 浙江正鼎汽车零部件有限公司 | Mold for edge rolling |
| CN209407134U (en) * | 2018-11-27 | 2019-09-20 | 天津晟科机械制造有限公司 | A kind of quick steel plate roll device |
| CN109500251A (en) * | 2018-12-27 | 2019-03-22 | 苏州鑫捷顺五金机电有限公司 | One kind being used for the one-time formed mold mechanism of curling process |
| CN209697841U (en) * | 2019-01-30 | 2019-11-29 | 淮安茂华管业有限公司 | Sheet metal edge rolling device |
| CN110586758A (en) * | 2019-09-20 | 2019-12-20 | 江苏易实精密科技股份有限公司 | Integrally-formed machining system and machining method for rolled shell |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111968505A (en) * | 2020-07-31 | 2020-11-20 | 昆山国显光电有限公司 | Laminating system and laminating device for curved surface display device |
| CN111968505B (en) * | 2020-07-31 | 2022-04-19 | 昆山国显光电有限公司 | Laminating system and laminating device for curved surface display device |
| CN111745050A (en) * | 2020-08-04 | 2020-10-09 | 杭州统奔模具制造有限公司 | Swivel chair short leg pipe forming die |
| CN111745050B (en) * | 2020-08-04 | 2024-04-30 | 杭州统奔模具制造有限公司 | Forming die for short leg pipe of swivel chair |
| CN114346037A (en) * | 2021-12-23 | 2022-04-15 | 江门市新会区浩潮五金制品有限公司 | Complete set of mould for arc-shaped handle and forming process thereof |
| CN114346037B (en) * | 2021-12-23 | 2024-06-04 | 江门市新会区浩潮五金制品有限公司 | Complete die set of arc handle and forming process thereof |
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Application publication date: 20200605 |