CN114535426B - Aluminum alloy wheel spoke extrusion chamfering die and chamfering processing method - Google Patents

Aluminum alloy wheel spoke extrusion chamfering die and chamfering processing method Download PDF

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Publication number
CN114535426B
CN114535426B CN202210447275.4A CN202210447275A CN114535426B CN 114535426 B CN114535426 B CN 114535426B CN 202210447275 A CN202210447275 A CN 202210447275A CN 114535426 B CN114535426 B CN 114535426B
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positioning
die
stamping
punching
chamfering
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CN202210447275.4A
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CN114535426A (en
Inventor
刘建芳
马春荣
张殿杰
杨小禹
梁勇
李会林
张宝
王利梅
李静
赵立冰
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Qinhuangdao Dicastal Xionglong Wheels Co Ltd
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Qinhuangdao Dicastal Xionglong Wheels Co Ltd
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Priority to CN202210447275.4A priority Critical patent/CN114535426B/en
Publication of CN114535426A publication Critical patent/CN114535426A/en
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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
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003—Positioning devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)

Abstract

The invention discloses an aluminum alloy wheel spoke extrusion chamfering die and a chamfering processing method, wherein the extrusion chamfering die comprises a lower positioning mechanism for placing a wheel and an upper punching mechanism for punching and chamfering air holes, the lower positioning mechanism comprises a lower positioning table, at least one air hole positioning disc, an outer ring positioning die for positioning an outer ring of the wheel and an inner positioning die for positioning the air holes, the lower positioning table is fixedly provided with an outer ring positioning die, the inner ring of the outer ring positioning die is rotatably matched with the inner positioning die, and the inner positioning die is provided with a group of inner die positioning through holes. According to the invention, the edges of the air holes are punched, so that a chamfer or fillet structure is punched, the internal structure of the chamfer or fillet is compact, and the surface layer is provided with a processing hardening layer, so that the method is greatly beneficial to improving the fatigue life; the chamfering processing of the wind holes with different quantities and positions can be realized, the applicability is better, and the overall use cost of the die is relatively low.

Description

Aluminum alloy wheel spoke extrusion chamfering die and chamfering processing method
Technical Field
The invention relates to the technical field of wheel chamfering, in particular to an aluminum alloy wheel spoke extrusion chamfering die and a chamfering method.
Background
Wind holes are usually formed in the end faces of forged aluminum alloy wheel hubs of commercial vehicles such as trucks and buses, the wind holes are usually formed by drilling through a machining center, edges at two ends of the wind holes are sharp edges, and only chamfer angles less than 0.5mm are formed after burr scraping treatment. After the wheel is assembled on a vehicle, in the long-term use process, the sharp edge is a stress concentration area, and the load of the commercial vehicle is very large, so that the wheel is easy to generate fatigue cracks at the sharp edge position, and the service life requirement of the vehicle can not be met. Since the wheel is both an appearance piece and a safety piece, fatigue cracks may occur at the edge position within the service life, and potential safety hazards also exist.
Therefore, it is urgently needed to solve the problem that if a large chamfer or fillet structure is machined, stress concentration can be reduced, and risk level can be reduced, but the machining mode is a material-removing machining mode, so that the machining process is relatively complicated, the consumed time is large, and the improvement degree of the fatigue resistance life after machining is limited.
In addition, the number and the size of the air holes are different according to different design requirements, the number of the air holes is designed in an even number, the specific number is generally between 6 and 12, sometimes, the positions of the air holes are different on different types of wheels, the cost of the die is high, and a set of new die needs to be designed and manufactured again after appropriate parameter modification, so that the manufacturing cost of wheel products is greatly increased.
Disclosure of Invention
The invention aims to provide an extrusion chamfering die and a chamfering processing method for an aluminum alloy wheel spoke, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an aluminum alloy wheel spoke extrusion chamfering die comprises a lower positioning mechanism for placing a wheel and an upper punching mechanism for punching and chamfering air holes, wherein the lower positioning mechanism comprises a lower positioning table, at least one air hole positioning disc, an outer ring positioning die for positioning an outer ring of the wheel and an inner positioning die for positioning the air holes;
the upper stamping mechanism comprises a taper sleeve frame and a plurality of stamping assemblies, each stamping assembly comprises a stamping mounting block and a stamping rod, the stamping rod movably penetrates through the stamping mounting block, and an upper positioning block is fixedly mounted at the upper side end of the stamping mounting block;
a plurality of groups of taper sleeve positioning through holes are formed in the taper sleeve frame, the taper sleeve positioning through holes are uniformly distributed around the central axis of the taper sleeve frame, and stamping part positioning mechanisms for locking the mounting positions of the upper positioning blocks are mounted in the taper sleeve positioning through holes of each group;
the upper punching mechanism further comprises a punch for impacting the punching rod, and the punch is movably arranged in the central hole of the taper sleeve frame in a penetrating mode up and down.
As a further scheme of the invention, the stamping assembly further comprises a stamping reset spring and a stamping end, a rod end disc extends from the upper end of the stamping rod, the stamping rod is movably arranged in the mounting block through hole of the stamping mounting block in a penetrating manner, the stamping end is fixedly arranged at the lower end of the stamping rod, a spring groove is formed in the upper end of the mounting block through hole, the stamping reset spring is arranged in the spring groove, one end of the stamping reset spring is connected with the end face of the spring groove in an abutting manner, and the other end of the stamping reset spring is connected with the rod end disc in an abutting manner.
As a further scheme of the invention, the air hole positioning mechanism and the stamping part positioning mechanism adopt the same positioning limiting mechanism, the positioning limiting mechanism comprises an end pressure supply nozzle and a positioning insertion column, the positioning insertion column is movably arranged in the inner die positioning through hole or the taper sleeve positioning through hole in a penetrating way, and the end pressure supply nozzle is inserted and fixed at the outer side end of the inner die positioning through hole or the taper sleeve positioning through hole;
the end face of the air hole positioning plate is provided with a positioning plate slot matched with the positioning insertion column, and the upper positioning block is provided with a positioning block slot matched with the positioning insertion column.
As a further scheme of the invention, the air hole positioning disc adopts a permanent magnet positioning disc or an electromagnetic positioning disc, and the inner positioning die is made of magnetic conductive metal.
As a further scheme of the invention, the upper positioning block adopts a permanent magnet positioning block or an electromagnetic positioning block, and the taper sleeve frame is made of magnetic conductive metal.
As a further scheme of the invention, the upper stamping mechanism further comprises a bottom positioning seat and a central guide shaft, the bottom positioning seat is fixedly inserted with the central guide shaft, the upper end of the central guide shaft movably penetrates through a central guide hole of the punch, and the lower end of the stamping installation block is also fixedly provided with a lower positioning block for butting against the bottom positioning seat.
As a further scheme of the invention, the lower positioning block also adopts a permanent magnetic positioning block or an electromagnetic positioning block, and the bottom positioning seat is made of magnetic conductive metal.
As a further scheme of the invention, the lower end surface of the bottom positioning seat is provided with a bottom positioning groove, and the lower end of the central guide shaft extends into the bottom positioning groove;
the center of the upper end face of the inner positioning die extends to form a center positioning die table, and the center of the center positioning die table is provided with a positioning die center hole matched with the lower end of the center guide shaft.
As a further scheme of the invention, the device also comprises an upper dividing plate, and the upper end of the taper sleeve frame is fixedly arranged on the lower end face of the driving plate of the upper dividing plate.
The lower part of the inner positioning die is fixedly arranged on the upper end face of a driving disc of the lower part dividing disc.
The processing method for the extrusion chamfering of the aluminum alloy wheel spoke is based on the extrusion chamfering die for the aluminum alloy wheel spoke, and specifically comprises the following steps:
s1, positioning the wheels by the lower positioning mechanism: according to the position of an air hole needing to be punched and chamfered on the wheel, selecting an air hole positioning mechanism at a corresponding position to position an air hole positioning disc, positioning the air hole positioning disc to be attached to an internal positioning die, driving the internal positioning die to rotate, rotating the internal positioning die to a specified calibration position, then placing the wheel on the internal positioning die, and sleeving the air hole of the wheel on the air hole positioning disc to complete the positioning of the wheel;
s2, positioning and assembling of the upper stamping mechanism: determining the installation number of the stamping assemblies according to the number and the positions of the air holes needing to be stamped and chamfered on the wheel, then selecting a stamping part positioning mechanism at a corresponding position to position an upper positioning block of the stamping assemblies, so that the upper positioning block is positioned and attached to the corresponding position of the inner side wall of the conical sleeve frame until the stamping assemblies with the corresponding installation number are completely installed, and finally driving the conical sleeve frame to rotate so that each stamping assembly corresponds to the air hole below;
s3, positioning and assembling the bottom positioning seat and the central guide shaft: a central guide shaft inserted and fixed on the bottom positioning seat penetrates into a central guide hole of the punch 1; then, the lower part of each stamping assembly is connected with the bottom positioning seat through a lower positioning block in an adsorption manner, so that the upper stamping mechanism forms a stable integral structure;
s4, driving the whole upper punching mechanism to descend, so that the upper punching mechanism and the lower positioning mechanism are matched, at the moment, a central positioning die table of the upper end face of the inner positioning die is inserted into the bottom positioning groove, the lower end of the central guide shaft is inserted into a central hole of the positioning die, and the lower end face of the bottom positioning seat is pressed on a wheel;
s5, driving the punch to descend to punch the punching rod of each punching assembly, and punching the punching end at the lower end of the punching rod to perform punching chamfering to the edge of the corresponding air hole;
and S6, after the punching chamfer is finished, driving the punch to ascend and reset, driving the whole upper punching mechanism to ascend and reset, and finishing the punching process.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the edges of the air holes are punched, so that a chamfer or fillet structure is punched, the internal structure of the chamfer or fillet is compact in this way, the surface layer is provided with a processing hardening layer, and the prestress generated at the part is compressive stress, so that the fatigue life is greatly prolonged, and the effect is far better than that of a machined chamfer or fillet structure;
2. the chamfering processing of the air holes with different numbers and positions can be realized by changing the installation number and the specific installation position of the stamping assembly and changing the specific installation position of the air hole positioning disc, so that the applicability is better, and the overall use cost of the die is relatively low; the number of used molds can be effectively reduced, the condition that the conventional mold can only process the wind hole chamfers with fixed sizes, fixed numbers and fixed positions is changed, and the number of used molds can be reduced when wheels with the same size and appearance are processed; the production cost of wheel manufacturing is reduced;
3. stamping part positioning mechanisms for locking the mounting positions of the upper positioning blocks are arranged in the taper sleeve positioning through holes of the taper sleeve frame, and the stamping components can be positioned and mounted through the stamping part positioning mechanisms; the air hole positioning mechanisms for locking the mounting positions of the air hole positioning discs are mounted in the inner die positioning through holes of the inner positioning die, and the air holes of the wheels can be positioned through the air hole positioning mechanisms, so that the wheels are positioned and mounted, and after positioning is finished, the positioning plug columns positioned by the stamping part positioning mechanisms and the air holes can retract, so that the positioning plug columns are prevented from being deformed by impact force in the stamping process and can be continuously positioned for use subsequently;
4. the upper indexing disc can drive the taper sleeve frame to rotate, so that the installation, position adjustment and calibration of the stamping assembly are facilitated; the lower index plate can drive the inner positioning die to rotate, so that the positions of the air holes can be conveniently adjusted and calibrated, and each air hole is ensured to be positioned right below the corresponding stamping assembly;
5. the punching mechanism is also provided with a bottom positioning seat and a central guide shaft, the bottom positioning seat is connected below each punching assembly in an adsorption mode through a lower positioning block, and the central guide shaft fixedly inserted into the bottom positioning seat movably penetrates through a central guide hole of the punch, so that the upper punching mechanism forms a stable integral structure, and each punching assembly can be aligned to a corresponding air hole to perform punching chamfering; after the upper punching mechanism and the lower positioning mechanism are assembled, the central positioning die table of the upper end face of the inner positioning die is inserted into the bottom positioning groove, the lower end of the central guide shaft is inserted into the central hole of the positioning die, and the lower end face of the bottom positioning seat is pressed and attached to a wheel, so that the positioning is reliable and stable, accurate punching chamfering is realized, and the quality of the processed air hole chamfering is effectively ensured.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the invention without punching;
FIG. 3 is a schematic cross-sectional view of the present invention during stamping;
FIG. 4 is a schematic perspective view of the upper punching mechanism of the present invention;
FIG. 5 is a schematic cross-sectional view of the upper punching mechanism according to the present invention;
FIG. 6 is an enlarged schematic view of the upper punching mechanism J of the present invention;
FIG. 7 is a schematic perspective view of a stamping assembly according to the present invention;
FIG. 8 is a schematic cross-sectional view of a stamping assembly according to the present invention;
FIG. 9 is a perspective view of the lower positioning mechanism of the present invention;
FIG. 10 is a cross-sectional view of the lower positioning mechanism of the present invention;
fig. 11 is an enlarged schematic structural view of the lower positioning mechanism K of the present invention.
In the figure: 100-wheel, 101-wind hole, 200-upper indexing disc, 300-lower indexing disc, 400-lower positioning table, 1-punch, 2-taper sleeve frame, 21-sleeve frame notch, 22-taper sleeve positioning perforation, 3-center guide shaft, 4-punching component, 41-punching mounting block, 411-mounting block perforation, 412-spring groove, 42-punching rod, 421-rod end disc, 43-punching end, 44-punching reset spring, 45-lower positioning block, 46-upper positioning block, 461-positioning block slot, 5-bottom positioning seat, 51-bottom positioning groove, 6-outer ring positioning die, 7-inner positioning die, 71-center positioning die table, 72-positioning die center hole, 73-wind hole positioning disc, 731-positioning disc slot, 74-inner mould positioning through hole, 8-end pressure supply nozzle and 81-positioning inserted column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, an aluminum alloy wheel spoke extrusion chamfering mold comprises a lower positioning mechanism for placing a wheel 100 and an upper punching mechanism for punching and chamfering an air hole 101, wherein the lower positioning mechanism comprises a lower positioning table 400, at least one air hole positioning disc 73, an outer ring positioning die 6 for positioning an outer ring of the wheel 100 and an inner positioning die 7 for positioning the air hole 101, the lower positioning table 400 is fixedly provided with the outer ring positioning die 6, an inner ring of the outer ring positioning die 6 is rotatably and cooperatively provided with the inner positioning die 7, the inner positioning die 7 is provided with a group of inner die positioning through holes 74, and each inner die positioning through hole 74 is internally provided with an air hole positioning mechanism for locking the installation position of the air hole positioning disc 73;
the upper stamping mechanism comprises a taper sleeve frame 2 and a plurality of stamping components 4, each stamping component 4 comprises a stamping mounting block 41 and a stamping rod 42, each stamping mounting block 41 is movably provided with the stamping rod 42 in a penetrating manner, and an upper positioning block 46 is fixedly mounted at the upper side end of each stamping mounting block 41;
a plurality of groups of taper sleeve positioning through holes 22 are formed in the taper sleeve frame 2, the taper sleeve positioning through holes 22 are uniformly distributed around the central axis of the taper sleeve frame 2, and a stamping part positioning mechanism for locking the mounting position of the upper positioning block 46 is installed in each taper sleeve positioning through hole 22 of each group; in this embodiment, the taper sleeve frame 2 is further provided with a sleeve frame notch 21 to facilitate the installation of the stamping component 4.
The upper punching mechanism further comprises a punch 1 for impacting the punching rod 42, and the punch 1 is movably arranged in the central hole of the taper sleeve frame 2 in an up-and-down penetrating manner.
Positioning of the wheel 100 by the lower positioning mechanism: according to the wind hole 101 position that needs the punching press chamfer on the wheel 100, select corresponding wind hole positioning mechanism to fix a position wind hole positioning disk 73, make wind hole positioning disk 73 fix a position and attach on inside positioning die 7, drive inside positioning die 7 and rotate, make inside positioning die 7 rotatory to appointed alignment position, then, lay wheel 100 on inside positioning die 7, make the wind hole 101 suit of wheel 100 on wind hole positioning disk 73, can accomplish the location of wheel 100.
Assembling an upper stamping mechanism: according to the number and the positions of the air holes 101 needing to be punched and chamfered on the wheel 100, the installation number of the punching assemblies 4 is determined, then the corresponding punching part positioning mechanisms are selected to position the upper positioning blocks 46 of the punching assemblies 4, the upper positioning blocks 46 are positioned and attached to the corresponding positions of the inner side wall of the taper sleeve frame 2, and punching and chamfering can be carried out after the punching assemblies 4 are installed.
The working principle of the invention is as follows: and driving the upper punching mechanism to descend to enable the upper punching mechanism and the lower positioning mechanism to be close to mold closing, driving the punch 1 after mold closing is completed, enabling the punch 1 to impact the punching rod 42, and punching and chamfering the edge of the air hole 101 at the bottom end of the punching rod 42.
As a further specific scheme, please refer to fig. 7 to 8, the stamping assembly 4 further includes a stamping return spring 44 and a stamping end 43, the upper end of the stamping rod 42 extends to form a rod end disc 421, the stamping rod 42 movably penetrates through an installation block through hole 411 of the stamping installation block 41, the lower end of the stamping rod 42 is fixedly installed with the stamping end 43, the upper end of the installation block through hole 411 is provided with a spring groove 412, the stamping return spring 44 is disposed in the spring groove 412, one end of the stamping return spring 44 is connected with an end surface of the spring groove 412 in an abutting manner, and the other end of the stamping return spring 44 is connected with the rod end disc 421 in an abutting manner. Punching press subassembly 4's structural design is reasonable, and after drift 1 rose and reseed, through punching press reset spring 44's elastic force effect, can drive punching press pole 42 and reseed for punching press end 43 breaks away from wind hole 101, so that carry out the chamfer punching press to next wheel 100, can adopt bolt fixed connection between punching press end 43 and the punching press pole 42, the convenient change of dismantling.
As a further specific scheme, please refer to fig. 6 and 11, the air vent positioning mechanism and the stamping part positioning mechanism adopt the same positioning limiting mechanism, the positioning limiting mechanism includes an end pressure supply nozzle 8 and a positioning insertion column 81, the positioning insertion column 81 is movably inserted into the inner mold positioning through hole 74 or the taper sleeve positioning through hole 22, and the end pressure supply nozzle 8 is inserted and fixed at the outer end of the inner mold positioning through hole 74 or the taper sleeve positioning through hole 22; obviously, the positioning insert column 81 has a step portion, and the inner mold positioning through hole 74 and the taper sleeve positioning through hole 22 also have a step groove matched with the positioning insert column 81, so as to prevent the positioning insert column 81 from separating from the inner mold positioning through hole 74 or the taper sleeve positioning through hole 22.
The end face of the air hole positioning plate 73 is provided with a positioning plate slot 731 used for being matched with the positioning insertion column 81, and the upper positioning block 46 is provided with a positioning block slot 461 used for being matched with the positioning insertion column 81.
When fixing a position wind hole positioning disk 73, accessible tip supplies to press mouth 8 to let in gas or liquid in the perforation 74 of interior mould location for the post 81 is inserted in the location stretches out, and the cooperation is aimed at with the location to insert post 81 in the positioning disk slot 731 of wind hole positioning disk 73 terminal surface, can realize the location of wind hole positioning disk 73.
Similarly, when the upper positioning block 46 is positioned, gas or liquid may be introduced into the inner die positioning through hole 74 through the end pressure supply nozzle 8, so that the positioning insertion post 81 extends out, and the positioning block insertion slot 461 on the upper positioning block 46 is aligned and matched with the positioning insertion post 81, thereby positioning the upper positioning block 46 and completing the positioning and installation of the stamping assembly 4.
Obviously, the number of the inner mold positioning through holes 74 in one group may be multiple, the central axis of each inner mold positioning through hole 74 in the same group is parallel to each other, and the central axis of each inner mold positioning through hole 74 in each group and the central axis of the inner positioning mold 7 are located on the same vertical plane, as shown in fig. 11, in this embodiment, the number of the inner mold positioning through holes 74 in one group is specifically two, the number of the corresponding group of air hole positioning mechanisms is specifically two, and according to the actual position of the air hole of the wheel, the air hole positioning mechanism in the corresponding position may be specifically selected to position and mount the air hole positioning disk 73;
obviously, the number of each set of taper sleeve positioning through holes 22 may be multiple, and in the same set, the central axes of each taper sleeve positioning through hole 22 are parallel to each other, and the central axes of each taper sleeve positioning through hole 22 of each set are all located on the same vertical plane as the central axis of the taper sleeve frame 2, as shown in fig. 6, in this embodiment, the number of each set of taper sleeve positioning through holes 22 is specifically two, and the number of the corresponding set of stamping part positioning mechanisms is specifically two, and according to the actual position of the wind hole of the wheel, the stamping part positioning mechanism at the corresponding position may be specifically selected to position and mount the stamping assembly 4;
obviously, the number of the groups of the taper sleeve positioning through holes 22 in the present embodiment may be specifically sixteen, and the apparatus of the present invention may perform punching and chamfering on the wheel 100 having 16, 8, or 4 wind holes 101;
of course, the number of the groups of the taper sleeve positioning through holes 22 can also be ten, and the device of the invention can punch and chamfer the wheel 100 with 10 or 5 wind holes 101.
Specifically, the air hole positioning plate 73 is a permanent magnet positioning plate or an electromagnetic positioning plate, and the inner positioning mold 7 is made of magnetic conductive metal. Wind hole positioning disk 73 accessible self magnetic force adsorbs on inside positioning die 7, and after wind hole positioning disk 73 location was accomplished, the post 81 all can retract is inserted in the location, avoids the location to insert the post 81 and receives the impulsive force and warp in stamping process, and follow-up can continue the location and use.
The upper positioning block 46 is a permanent magnet positioning block or an electromagnetic positioning block, and the taper sleeve frame 2 is made of magnetic conductive metal. Go up locating piece 46 accessible self magnetic force and adsorb on the inside wall of awl set frame 2, go up locating piece 46 location and accomplish the back, the post 81 all can retract is inserted in the location, avoids the location to insert post 81 and receives the impulsive force and warp in stamping process, and follow-up can continue the location and use.
Specifically, referring to fig. 5, the upper punching mechanism further includes a bottom positioning seat 5 and a central guide shaft 3, the bottom positioning seat 5 is fixedly inserted with the central guide shaft 3, the upper end of the central guide shaft 3 movably penetrates through a central guide hole of the punch 1, and the lower end of the punching mounting block 41 is further fixedly mounted with a lower positioning block 45 for abutting against the bottom positioning seat 5.
The lower positioning block 45 is also a permanent magnet positioning block or an electromagnetic positioning block, and the bottom positioning block 5 is made of magnetic conductive metal. The lower end surface of the bottom positioning seat 5 is provided with a bottom positioning groove 51, and the lower end of the central guide shaft 3 extends into the bottom positioning groove 51; a central positioning die table 71 extends from the center of the upper end surface of the internal positioning die 7, and a positioning die center hole 72 matched with the lower end of the central guide shaft 3 is formed in the center of the central positioning die table 71.
The punching mechanism is further provided with a bottom positioning seat 5 and a central guide shaft 3, the bottom positioning seat 5 is connected below each punching assembly 4 in an adsorption mode through a lower positioning block 45, the central guide shaft 3 fixedly inserted in the bottom positioning seat 5 is movably arranged in a central guide hole of the punch 1 in a penetrating mode, so that the upper punching mechanism forms a stable integral structure, each punching assembly 4 can be aligned to the corresponding air hole 101, and punching chamfering is carried out; after the upper punching mechanism and the lower positioning mechanism are assembled, the central positioning die table 71 on the upper end surface of the inner positioning die 7 is inserted into the bottom positioning slot 51, the lower end of the central guide shaft 3 is inserted into the central hole 72 of the positioning die, and the lower end surface of the bottom positioning seat 5 is pressed and attached to the wheel 100, so that the positioning is reliable and stable, accurate punching chamfering is realized, and the quality of the processed air hole chamfering is effectively ensured.
As a more specific solution, the embodiment of the present invention further includes an upper dividing plate 200, and the upper end of the taper sleeve holder 2 is fixedly mounted on the lower end face of the driving plate of the upper dividing plate 200. The upper indexing disc 200 can drive the taper sleeve frame 2 to rotate, so that the punching assembly 4 can be conveniently installed, position adjusted and calibrated;
the embodiment of the invention also comprises a lower part index plate 300 arranged on the lower part positioning table 400, and the lower end surface of the inner positioning die 7 is fixedly arranged on the upper end surface of a driving plate of the lower part index plate 300. The inner positioning die 7 can be driven to rotate by the lower indexing disc 300, so that the positions of the air holes 101 can be adjusted and calibrated conveniently, and each air hole 101 is ensured to be positioned right below the corresponding stamping assembly 4.
When the embodiment of the invention is applied and implemented specifically, an outer frame can be configured, a lifting oil cylinder is arranged on the outer frame, the telescopic end of the lifting oil cylinder is fixedly connected with the fixed disc of the upper dividing disc 200, and the whole upper punching mechanism is driven to descend or ascend through the lifting oil cylinder so as to be pressed on the wheel 100 or be far away from the wheel 100; and a stamping oil cylinder can be arranged on a fixed disc of the upper part dial 200, the telescopic end of the stamping oil cylinder is fixedly connected with the punch 1, and the punch 1 can be driven to perform stamping action by the stamping oil cylinder. It will be apparent to those skilled in the art that other ways of accomplishing the above may be used.
In this embodiment, a schematic diagram of a die apparatus for processing an edge of one end surface of the wind hole 101 is shown, specifically, in order to process an edge of the wind hole 101 of the other end surface, the shape of the internal positioning die 7 may be adaptively adjusted, and at the same time, the inclination direction of the stamping rod 42 in the stamping assembly 4 may be adaptively adjusted.
The processing method for the extrusion chamfering of the aluminum alloy wheel spoke is based on the extrusion chamfering die for the aluminum alloy wheel spoke, and specifically comprises the following steps:
s1, positioning of the wheel 100 by the lower positioning mechanism: according to the position of an air hole 101 needing to be chamfered on the wheel 100, selecting an air hole positioning mechanism at a corresponding position to position an air hole positioning disc 73, positioning the air hole positioning disc 73 to be attached to an internal positioning die 7, driving the internal positioning die 7 to rotate, rotating the internal positioning die 7 to a specified calibration position, then placing the wheel 100 on the internal positioning die 7, and sleeving the air hole 101 of the wheel 100 on the air hole positioning disc 73, so that the positioning of the wheel 100 can be completed;
s2, positioning and assembling of the upper stamping mechanism: determining the installation number of the stamping assemblies 4 according to the number and the positions of the air holes 101 needing to be stamped and chamfered on the wheel 100, then selecting stamping part positioning mechanisms at corresponding positions to position the upper positioning blocks 46 of the stamping assemblies 4, so that the upper positioning blocks 46 are positioned and attached to the corresponding positions of the inner side walls of the taper sleeve frame 2 until the corresponding installation number of the stamping assemblies 4 are completely installed, and finally driving the taper sleeve frame 2 to rotate so that each stamping assembly 4 corresponds to the air hole 101 below;
s3, positioning and assembling the bottom positioning seat 5 and the central guide shaft 3: a central guide shaft 3 inserted and fixed on the bottom positioning seat 5 penetrates into a central guide hole of the punch 1; next, the lower part of each stamping assembly 4 is connected with the bottom positioning seat 5 in an adsorption manner through a lower positioning block 45, so that the upper stamping mechanism forms a stable integral structure;
s4, driving the whole upper punching mechanism to descend, so that the upper punching mechanism and the lower positioning mechanism are matched, at the moment, the central positioning die table 71 on the upper end surface of the inner positioning die 7 is inserted into the bottom positioning slot 51, the lower end of the central guide shaft 3 is inserted into the central hole 72 of the positioning die, and the lower end surface of the bottom positioning seat 5 is pressed on the wheel 100;
s5, driving the punch 1 to descend to punch the punching rod 42 of each punching assembly 4, and punching the punching end 43 at the lower end of the punching rod 42 to perform punching chamfering on the edge of the corresponding air hole 101;
and S6, after the punching chamfering is finished, driving the punch 1 to ascend and reset, driving the whole upper punching mechanism to ascend and reset, and finishing the punching process.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.

Claims (11)

1. The utility model provides an aluminum alloy wheel spoke extrusion chamfer mould which characterized in that: the device comprises a lower positioning mechanism for placing a wheel (100) and an upper punching mechanism for punching and chamfering an air hole (101), wherein the lower positioning mechanism comprises a lower positioning table (400), at least one air hole positioning disc (73), an outer ring positioning die (6) for positioning an outer ring of the wheel (100) and an inner positioning die (7) for positioning the air hole (101), the lower positioning table (400) is fixedly provided with the outer ring positioning die (6), the inner ring of the outer ring positioning die (6) is rotatably matched with the inner positioning die (7), the inner positioning die (7) is provided with a group of inner die positioning through holes (74), and each inner die positioning through hole (74) is internally provided with the air hole positioning mechanism for locking the installation position of the air hole positioning disc (73);
the upper stamping mechanism comprises a taper sleeve frame (2) and a plurality of stamping components (4), each stamping component (4) comprises a stamping mounting block (41) and a stamping rod (42), each stamping mounting block (41) is movably provided with the stamping rod (42) in a penetrating manner, and an upper positioning block (46) is fixedly mounted at the upper side end of each stamping mounting block (41);
a plurality of groups of taper sleeve positioning through holes (22) are formed in the taper sleeve frame (2), the taper sleeve positioning through holes (22) are uniformly distributed around the central axis of the taper sleeve frame (2), and stamping part positioning mechanisms for locking the mounting positions of the upper positioning blocks (46) are mounted in each taper sleeve positioning through hole (22) of each group;
the upper punching mechanism further comprises a punch (1) for impacting the punching rod (42), and the punch (1) is movably arranged in a central hole of the taper sleeve frame (2) in a penetrating mode up and down.
2. The aluminum alloy wheel spoke extrusion chamfering die of claim 1, wherein: punching press subassembly (4) still include punching press reset spring (44) and punching press end (43), the upper end of punching press pole (42) is extended there is pole end dish (421), and punching press pole (42) activity is worn to establish in the installation piece of punching press installation piece (41) is perforated (411), and the lower extreme fixed mounting of punching press pole (42) has punching press end (43), the installation piece perforation (411) upper end seted up spring groove (412), be provided with punching press reset spring (44) in spring groove (412), the one end of punching press reset spring (44) is contradicted with the terminal surface of spring groove (412) and is connected, the other end and the pole end dish (421) of punching press reset spring (44) are contradicted and are connected.
3. The aluminum alloy wheel spoke extrusion chamfering die of claim 2, wherein: the air hole positioning mechanism and the stamping part positioning mechanism adopt the same positioning and limiting mechanism, the positioning and limiting mechanism comprises an end pressure supply nozzle (8) and a positioning insertion column (81), the positioning insertion column (81) is movably arranged in the inner die positioning through hole (74) or the taper sleeve positioning through hole (22) in a penetrating way, and the end pressure supply nozzle (8) is inserted and fixed at the outer side end of the inner die positioning through hole (74) or the taper sleeve positioning through hole (22);
the end face of the air hole positioning plate (73) is provided with a positioning plate slot (731) used for being matched with the positioning insertion column (81), and the upper positioning block (46) is provided with a positioning block slot (461) used for being matched with the positioning insertion column (81).
4. The aluminum alloy wheel spoke extrusion chamfering die of claim 3, wherein: the air hole positioning disc (73) is a permanent magnet positioning disc or an electromagnetic positioning disc, and the inner positioning die (7) is made of magnetic conductive metal.
5. The aluminum alloy wheel spoke extrusion chamfering die of claim 4, wherein: the upper positioning block (46) is a permanent magnetic positioning block or an electromagnetic positioning block, and the taper sleeve frame (2) is made of magnetic conductive metal.
6. The aluminum alloy wheel spoke extrusion chamfering die of claim 5, wherein: the upper stamping mechanism further comprises a bottom positioning seat (5) and a central guide shaft (3), the central guide shaft (3) is fixedly inserted on the bottom positioning seat (5), the upper end of the central guide shaft (3) is movably arranged in a central guide hole of the punch (1) in a penetrating mode, and a lower positioning block (45) used for abutting against the bottom positioning seat (5) is fixedly mounted at the lower end of the stamping mounting block (41).
7. The aluminum alloy wheel spoke extrusion chamfering die of claim 6, wherein: the lower positioning block (45) is also a permanent magnet positioning block or an electromagnetic positioning block, and the bottom positioning block (5) is made of magnetic conductive metal.
8. The aluminum alloy wheel spoke extrusion chamfering die of claim 6, wherein: the lower end surface of the bottom positioning seat (5) is provided with a bottom positioning groove (51), and the lower end of the central guide shaft (3) extends into the bottom positioning groove (51);
the center of the upper end face of the inner positioning die (7) extends to form a center positioning die table (71), and a center positioning die center hole (72) matched with the lower end of the center guide shaft (3) is formed in the center of the center positioning die table (71).
9. The aluminum alloy wheel spoke extrusion chamfering die of claim 8, wherein: the upper end of the taper sleeve frame (2) is fixedly arranged on the lower end face of a driving disc of the upper indexing disc (200).
10. The aluminum alloy wheel spoke extrusion chamfering die of claim 9, wherein: the lower indexing plate (300) is arranged on the lower positioning table (400), and the lower end face of the inner positioning die (7) is fixedly arranged on the upper end face of a driving plate of the lower indexing plate (300).
11. The processing method for the extrusion chamfer of the aluminum alloy wheel spoke is characterized by comprising the following steps of: the aluminum alloy wheel spoke extrusion chamfering die based on the claim 10 specifically comprises the following steps:
s1, positioning of the wheel (100) by the lower positioning mechanism: according to the position of an air hole (101) needing to be punched and chamfered on a wheel (100), selecting an air hole positioning mechanism at a corresponding position to position an air hole positioning disc (73), so that the air hole positioning disc (73) is positioned and attached to an internal positioning die (7), driving the internal positioning die (7) to rotate, so that the internal positioning die (7) rotates to a specified calibration position, then placing the wheel (100) on the internal positioning die (7), and sleeving the air hole (101) of the wheel (100) on the air hole positioning disc (73), so that the wheel (100) can be positioned;
s2, positioning and assembling of the upper stamping mechanism: determining the installation number of the stamping assemblies (4) according to the number and the positions of the air holes (101) needing stamping chamfering on the wheel (100), then selecting stamping part positioning mechanisms at corresponding positions to position the upper positioning blocks (46) of the stamping assemblies (4), enabling the upper positioning blocks (46) to be positioned and attached to corresponding positions of the inner side wall of the cone sleeve frame (2) until the stamping assemblies (4) with the corresponding installation number are completely installed, and finally driving the cone sleeve frame (2) to rotate, so that each stamping assembly (4) corresponds to the air hole (101) below;
s3, positioning and assembling the bottom positioning seat (5) and the central guide shaft (3): a central guide shaft (3) inserted and fixed on the bottom positioning seat (5) penetrates into a central guide hole of the punch (1); then, the lower part of each stamping assembly (4) is connected with the bottom positioning seat (5) in an adsorption way through a lower positioning block (45), so that the upper stamping mechanism forms a stable integral structure;
s4, driving the whole upper punching mechanism to descend, so that the upper punching mechanism and the lower positioning mechanism are matched, at the moment, a central positioning die table (71) on the upper end surface of an inner positioning die (7) is inserted into a bottom positioning groove (51), the lower end of a central guide shaft (3) is inserted into a positioning die center hole (72), and the lower end surface of a bottom positioning seat (5) is pressed on a wheel (100);
s5, driving the punch (1) to descend to punch the punch to the punching rod (42) of each punching assembly (4), and punching and chamfering the edge of the corresponding air hole (101) by the punching end (43) at the lower end of the punching rod (42);
and S6, after the punching chamfering is finished, the punch (1) is driven to ascend and reset, the whole upper punching mechanism is driven to ascend and reset, and the punching process is finished.
CN202210447275.4A 2022-04-27 2022-04-27 Aluminum alloy wheel spoke extrusion chamfering die and chamfering processing method Active CN114535426B (en)

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CN102248081A (en) * 2011-06-23 2011-11-23 江铃汽车股份有限公司 Spoke wind hole stamping and chamfering mould
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