CN117483634B - Extrusion equipment for gear manufacturing - Google Patents
Extrusion equipment for gear manufacturing Download PDFInfo
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- CN117483634B CN117483634B CN202311847871.2A CN202311847871A CN117483634B CN 117483634 B CN117483634 B CN 117483634B CN 202311847871 A CN202311847871 A CN 202311847871A CN 117483634 B CN117483634 B CN 117483634B
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- 238000001125 extrusion Methods 0.000 title claims abstract description 164
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000000465 moulding Methods 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims description 39
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000013519 translation Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000005307 ferromagnetism Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000641 cold extrusion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000010862 gear shaping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Abstract
The invention discloses extrusion molding equipment for gear manufacturing, and relates to the technical field of gear machining. The invention comprises an extrusion molding mechanism and a die set, wherein a lifting control console is arranged right above an extrusion molding table of the extrusion molding mechanism, a plurality of extrusion dies are arranged in a circumferential array below the lifting control console, the axial distance between the extrusion dies and the lifting control console is adjustable, the die set consists of a first molding die shell and a second molding die shell, the first molding die shell is coaxially and fixedly arranged on the extrusion molding table, the second molding die shell is coaxially and rotatably arranged on the extrusion molding table, and the second molding die shell is tightly attached to the bottom of the first molding die shell. After the extrusion molding of the gear blank is finished, the second gear mold can be aligned to the first gear mold only by rotating the second molding shell by a certain angle, so that the gear preform can fall into the corresponding second gear mold rapidly, and the gear preform can be prevented from deflecting in the transfer process.
Description
Technical Field
The invention belongs to the technical field of gear machining, and particularly relates to extrusion forming equipment for gear manufacturing.
Background
Gears are one of the most basic parts for transmitting motion and power, and are widely applied in the industrial field due to the advantages of high meshing efficiency, low noise, large transmission load and the like. At present, many gears are still produced by adopting mechanical processing methods such as gear shaping, broaching and the like, and the defects of low material utilization rate, low production efficiency, poor mechanical property and the like exist, and the cold extrusion forming process can save materials, improve the production efficiency, reduce the production cost and ensure that the comprehensive quality of extruded products is high.
In the prior art, when the gear cold extrusion equipment is used for extrusion molding of the gear, two sets of dies are needed, extrusion molding processing of the gear is completed through cooperation of the two sets of dies, the first set of dies is used for preforming extrusion, and the other set of dies is used for final molding extrusion. However, after the extrusion of the preformed gear is completed, the gear needs to be manually taken out and then placed into a second forming die for extrusion, and the extrusion forming processing mode of the gear is low in processing efficiency, teeth of the preformed gear are small, deflection is easy to occur when the preformed gear is placed in the second forming die, and therefore uncoordinated lines of the gear after the extrusion are formed, and defects of the gear are caused. To this end, we provide an extrusion molding apparatus for gear manufacturing to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide extrusion forming equipment for gear manufacturing, which solves the problems in the background technology through the specific structural design of an extrusion forming mechanism, a die set and an ejection unloading mechanism.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to extrusion molding equipment for gear manufacturing, which comprises an extrusion molding mechanism and a die set, wherein the die set is coaxially arranged on the extrusion molding mechanism; the extrusion forming mechanism comprises an extrusion forming table, a lifting control table coaxial with the extrusion forming table is arranged right above the extrusion forming table, a plurality of extrusion dies are arranged in a circumferential array below the lifting control table, and the axial distance between the extrusion dies and the lifting control table is adjustable.
The die set consists of a first molding die shell and a second molding die shell; the first forming die shell is coaxially and fixedly arranged on the extrusion forming table, the second forming die shell is coaxially and rotatably arranged on the extrusion forming table, and the second forming die shell is tightly attached to the bottom of the first forming die shell.
The first forming die comprises a plurality of first gear dies which are arranged in a circumferential array, and the first gear dies are arranged in one-to-one correspondence with the extrusion dies; the second forming mold shell comprises a plurality of second gear molds which are arranged in a circumferential array, the second gear molds are arranged in one-to-one correspondence with the first gear molds, and the second gear molds are arranged between two adjacent first gear molds in an initial state.
When the gear blank is placed inside the first gear die and the stamping preforming is completed through the extrusion die head, the second forming die shell is rotated to enable the second gear die to be aligned with the first gear die, at the moment, the gear preform falls into the corresponding second gear die, and the gear preform is stamped through the extrusion die head again to obtain the stamping forming gear.
The invention further provides that the extrusion forming mechanism further comprises an extrusion forming machine frame, the extrusion forming table is fixedly arranged on the inner side of the extrusion forming machine frame, an extrusion control cylinder is fixedly arranged at the top of the extrusion forming machine frame, and the output end of the extrusion control cylinder is fixedly connected with the lifting control table.
The invention is further characterized in that an internal tooth regulating ring coaxial with the lifting control console is rotatably arranged at the top of the lifting control console, a plurality of limit guide rods are arranged on the inner side of the internal tooth regulating ring in a circumferential array, and the limit guide rods are fixedly connected with the lifting control console; the device is characterized in that an axial movable plate is arranged on the limiting guide rod in a sliding manner, a distance adjusting screw coaxial with a corresponding extrusion die head is fixedly arranged on the surface of the axial movable plate, the extrusion die head is fixedly arranged at the lower end of the corresponding distance adjusting screw, distance adjusting gears in one-to-one correspondence with the distance adjusting screws are meshed with the inner sides of the internal tooth adjusting rings, and the distance adjusting gears are fixedly arranged on the peripheral side surfaces of the corresponding distance adjusting screws.
The invention is further arranged that the top of the extrusion forming table is provided with a die mounting cavity coaxial with the extrusion forming table, the inside of the extrusion forming table is provided with an upper top discharging cavity coaxial with the extrusion forming table, the upper top discharging cavity is communicated with the die mounting cavity through a discharging guide opening, and the discharging guide opening is coaxially arranged below a corresponding first gear die; the extrusion molding bench top circumferential array is provided with a plurality of pushing channels communicated with the upper top unloading cavity, the pushing channels are arranged in one-to-one correspondence with the first gear dies, the bottom of the lifting control console is fixedly provided with axial support rods in one-to-one correspondence with the pushing channels, the lower ends of the axial support rods are fixedly provided with magnetic pushing seats matched with the corresponding pushing channels, and the bottom of each magnetic pushing seat is provided with an electromagnet.
The invention is further arranged that a plurality of forming switching arc channels communicated with the upper top unloading cavity are arranged on the peripheral side surface of the extrusion forming table in an array manner, and the forming switching arc channels are arranged between two adjacent pushing channels; the upper top discharging cavity is characterized in that a plurality of axial limit rails in one-to-one correspondence with pushing channels are fixedly arranged on the inner wall of the upper top discharging cavity, a plurality of radial guide grooves are formed in the bottom of the upper top discharging cavity in a circumferential array mode, and the radial guide grooves are in one-to-one correspondence with the axial limit rails.
The invention is further arranged that the first forming die further comprises a first die shell plate fixedly arranged in the die mounting cavity, and the first gear die array is arranged on the first die shell plate; the second forming die shell further comprises a second die shell plate which is in clearance fit with the inside of the die mounting cavity, the second gear die array is arranged on the second die shell plate, a plurality of radial connecting rods are fixedly arranged on the peripheral side face of the second die shell plate, the radial connecting rods are in sliding fit with the inside of a corresponding forming switching arc channel, an external gear cutting ring is sleeved outside the extrusion forming table, and the external gear cutting ring is fixedly connected with each radial connecting rod.
The invention is further arranged that the invention also comprises an upper ejection unloading mechanism; the upper top unloading mechanism comprises an upper top unloading assembly coaxially arranged in the upper top unloading cavity, and unloading power assemblies which are in one-to-one correspondence with the axial limiting rails are arranged on the periphery of the upper top unloading assembly; the upper top discharging assembly comprises a central guide column fixedly arranged in the upper top discharging cavity, an upper top discharging disc is arranged on the central guide column in a sliding mode, and the peripheral side face of the upper top discharging disc is arranged to be of a conical structure with a wide upper part and a narrow lower part; the upper top discharge disc is fixedly provided with axial positioning pipes in one-to-one correspondence with discharge guide openings, a discharge pushing rod is arranged in the axial positioning pipes in a clearance fit mode, a limiting convex piece is fixedly arranged at the upper end of the discharge pushing rod, the limiting convex piece is in clearance fit with a limiting groove at the top of the axial positioning pipes, and a first permanent magnet is arranged at the lower end of the discharge pushing rod.
The invention is further arranged that the unloading power assembly comprises an inclined pushing seat which is in clearance fit in the corresponding pushing channel, the inclined pushing seat is in sliding fit with the corresponding axial limiting rail, and a first elastic piece connected to the bottom of the inclined pushing seat is arranged in the upper top unloading cavity; the top of the inclined pushing seat is provided with a magnetic repulsion channel, a movable seat is arranged in the magnetic repulsion channel in a clearance fit mode, an axial magnetic supply plate extending to the lower portion of the inclined pushing seat is fixedly arranged at the bottom of the movable seat, a second permanent magnet is arranged on the surface of the axial magnetic supply plate, a third permanent magnet which repels electromagnetic ferromagnetism is arranged at the top of the movable seat, and a second elastic piece connected to the bottom of the movable seat is arranged in the magnetic repulsion channel.
The invention is further arranged that the unloading power assembly further comprises a stressed translation seat, the top of the stressed translation seat is connected with a first inclined support plate attached to the inclined side wall of the inclined pushing seat through an extension plate, and the top of the first inclined support plate is fixedly provided with a second inclined support plate attached to the peripheral side surface of the upper top unloading disc; the top of the forced translation seat is provided with a radial extension channel, the bottom of the forced translation seat is provided with a radial sliding port communicated with the radial extension channel, a radial magnetic supply plate is arranged in the radial sliding port in a sliding manner, and the lower end of the axial positioning tube extends to the inside of the corresponding radial sliding port.
The invention is further arranged that the bottom of the radial magnetic supply plate is fixedly provided with a radial guide plate which is in sliding fit with the inside of the corresponding radial guide groove, and the inside of the radial guide groove is provided with a third elastic piece connected with the radial guide plate; the top of the radial magnetic supply plate is provided with a fourth permanent magnet which is repulsed with the corresponding first permanent magnetic iron magnetism, and the end of the radial magnetic supply plate, which is close to the first elastic piece, is provided with a fifth permanent magnet which is repulsed with the corresponding second permanent magnetic iron magnetism.
The invention has the following beneficial effects:
according to the invention, the die set is arranged on the extrusion forming table and consists of the first forming die shell fixed on the extrusion forming table and the second forming die shell rotatably arranged on the extrusion forming table, after the extrusion forming of the gear blank is completed through the first gear die on the first forming die shell, the second gear die can be aligned with the first gear die only by rotating the second forming die shell by a certain angle, so that the gear pre-forming part rapidly falls into the corresponding second gear die, the working efficiency of gear extrusion forming processing is greatly improved, deflection of the gear pre-forming part in the transfer process is effectively prevented, uncoordinated lines of the formed and extruded gear are avoided, and the quality of gear extrusion forming processing is greatly improved.
According to the invention, through the specific structural design of the ejection unloading mechanism, after the lifting control console moves downwards to enable the extrusion die head to be inserted into the second gear die to finish gear extrusion molding, the electromagnet at the bottom of the magnetic pushing seat is controlled to be electrified to have magnetism, the second permanent magnet on the surface of the axial magnetic supply plate is driven to move downwards to the fifth permanent magnet under the action of the magnetic repulsive force of the electromagnet on the third permanent magnet at the top of the movable seat, and the radial magnetic supply plate is driven to move to compress the third elastic piece until the fourth permanent magnet moves to the lower part of the first permanent magnet under the action of the magnetic repulsive force of the second permanent magnet on the fifth permanent magnet, and at the moment, the fourth permanent magnet generates the magnetic repulsive force on the first permanent magnet to enable the unloading pushing rod to move upwards for one end distance to push out the gear product after extrusion molding to the top of the die set, so that the collection of the extrusion molded gear is facilitated.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view showing an internal structure of an extrusion molding apparatus for gear manufacturing.
Fig. 2 is a schematic structural view of an extrusion molding mechanism in the present invention.
Fig. 3 is a front view of the structure of fig. 2.
Fig. 4 is a schematic structural view of a die set according to the present invention.
FIG. 5 is a schematic view of a first form according to the present invention.
FIG. 6 is a schematic view of a second form according to the present invention.
Fig. 7 is a schematic structural view of the upper top discharging mechanism in the present invention.
Fig. 8 is an enlarged view of a partial structure at a in fig. 7.
Fig. 9 is a schematic view of the structure of fig. 7 from the bottom.
Fig. 10 is an enlarged view of a partial structure at B in fig. 9.
Fig. 11 is a schematic view of the structure of the unloading power assembly in the invention.
Fig. 12 is a schematic view of the structure of fig. 11 at another angle.
Fig. 13 is a front view of the structure of fig. 11.
In the drawings, the list of components represented by the various numbers is as follows:
1-extrusion molding mechanism, 101-extrusion molding table, 102-lifting control table, 103-extrusion die head, 104-extrusion molding frame, 105-extrusion control cylinder, 106-internal tooth regulation ring, 107-limit guide rod, 108-axial moving plate, 109-distance adjusting screw, 110-distance adjusting gear, 111-die mounting cavity, 112-upper top discharging cavity, 113-discharging guide opening, 114-pushing channel, 115-magnetic pushing seat, 116-molding switching arc channel, 117-axial limit rail, 118-radial guide groove, 2-die set, 3-first molding die shell, 301-first gear die, 302-first die shell disc, 4-second molding die shell, 401-second gear die, 402-second die shell disc 403-radial connecting rod, 404-external toothed cut ring, 5-overhead discharge mechanism, 6-overhead discharge assembly, 601-central guide post, 602-overhead discharge tray, 603-axial positioning tube, 604-discharge push rod, 605-limit projection, 606-limit groove, 607-first permanent magnet, 7-discharge power assembly, 701-diagonal drive, 702-first elastic member, 703-magnetic repulsion channel, 704-moving seat, 705-axial magnetic feed plate, 706-third permanent magnet, 707-second elastic member, 708-force translation seat, 709-first diagonal drive plate, 710-second diagonal drive plate, 711-radial extension channel, 712-radial slide port, 713-radial magnetic feed plate, 714-radial guide plate, 715-third elastic member, 716-fifth permanent magnet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Detailed description of the preferred embodiments
Referring to fig. 1-13, the present invention is an extrusion molding apparatus for gear manufacturing, comprising an extrusion molding mechanism 1 and a die set 2, wherein the die set 2 is coaxially disposed on the extrusion molding mechanism 1; the extrusion forming mechanism 1 comprises an extrusion forming table 101, a lifting control table 102 concentric with the extrusion forming table 101 is arranged right above the extrusion forming table 101, a plurality of extrusion dies 103 are arranged in a circumferential array below the lifting control table 102, extrusion forming of gear blanks or extrusion forming of preformed gears is completed through the extrusion dies 103, and axial distance between the extrusion dies 103 and the lifting control table 102 is adjustable;
the die set 2 consists of a first forming die shell 3 and a second forming die shell 4; the first forming die shell 3 is fixedly arranged on the extrusion forming table 101 in a coaxial manner, the second forming die shell 4 is rotatably arranged on the extrusion forming table 101 in a coaxial manner, and the second forming die shell 4 is tightly attached to the bottom of the first forming die shell 3; the first forming die 3 comprises a plurality of first gear dies 301 which are arranged in a circumferential array, and the first gear dies 301 are arranged in one-to-one correspondence with the extrusion dies 103; the second forming mold shell 4 comprises a plurality of second gear molds 401 which are arranged in a circumferential array, the second gear molds 401 are arranged in one-to-one correspondence with the first gear molds 301, and the second gear molds 401 are arranged between two adjacent first gear molds 301 in an initial state; extruding the gear blank to form a gear preform by the co-operation between the extrusion die 103 and the first gear die 301, and subsequently aligning the second gear die 401 with the first gear die 301 by rotating the second forming die 4, whereupon the gear preform is extruded to form a formed gear by the co-operation between the extrusion die 103 and the second gear die 401;
after the gear blank is placed inside the first gear mold 301 and the press-forming preform is completed by the press die 103, the second gear mold 401 is aligned with the first gear mold 301 by rotating the second forming housing 4, at which time the gear preform falls inside the corresponding second gear mold 401, and the gear preform is again press-formed by the press die 103 to obtain a press-formed gear.
In this embodiment of the present invention, the extrusion mechanism 1 further includes an extrusion frame 104, the extrusion table 101 is fixedly disposed inside the extrusion frame 104, an extrusion control cylinder 105 is fixedly mounted on the top of the extrusion frame 104, an output end of the extrusion control cylinder 105 is fixedly connected with the lifting control table 102, and the lifting control table 102 is driven to move up and down under the action of the extrusion control cylinder 105 by starting the extrusion control cylinder 105, so as to realize the up-down movement of the extrusion die head 103.
An internal tooth regulation ring 106 coaxial with the lifting console 102 is rotatably arranged at the top of the lifting console 102, a plurality of limit guide rods 107 are arranged on the inner side of the internal tooth regulation ring 106 in a circumferential array, and the limit guide rods 107 are fixedly connected with the lifting console 102; an axial movable plate 108 is arranged on the limiting guide rod 107 in a sliding manner, a distance adjusting screw 109 coaxial with the corresponding extrusion die head 103 is fixedly arranged on the surface of the axial movable plate 108, the extrusion die head 103 is fixedly arranged at the lower end of the corresponding distance adjusting screw 109, distance adjusting gears 110 which are in one-to-one correspondence with the distance adjusting screws 109 are meshed with the inner sides of the internal tooth adjusting rings 106, and the distance adjusting gears 110 are fixedly arranged on the peripheral side surfaces of the corresponding distance adjusting screws 109; after extrusion of the gear blank is completed, the internal tooth regulating ring 106 is rotated to simultaneously drive each distance regulating gear 110 to synchronously rotate, and each distance regulating screw 109 can be driven to move downwards along the axial direction under the threaded fit of the distance regulating gear 110 and the distance regulating screw 109, so that the distance between the extrusion die head 103 and the lifting control console 102 is adjusted, and at the moment, the extrusion die head 103 can be positioned to extrude the gear preform on the inner side of the second gear die 401.
In the embodiment of the invention, a die mounting cavity 111 coaxial with the extrusion molding table 101 is arranged at the top of the extrusion molding table 101, an upper top discharging cavity 112 coaxial with the extrusion molding table 101 is arranged in the extrusion molding table 101, the upper top discharging cavity 112 is communicated with the die mounting cavity 111 through a discharging guide opening 113, and the discharging guide opening 113 is coaxially arranged below the corresponding first gear die 301;
the top of the extrusion molding table 101 is provided with a plurality of pushing channels 114 which are communicated with the upper top unloading cavity 112 in a circumferential array manner, the pushing channels 114 are arranged in one-to-one correspondence with the first gear molds 301, the bottom of the lifting control table 102 is fixedly provided with axial support rods which are in one-to-one correspondence with the pushing channels 114, the lower ends of the axial support rods are fixedly provided with magnetic pushing seats 115 which are matched with the corresponding pushing channels 114, and the bottoms of the magnetic pushing seats 115 are provided with electromagnets; when the lifting control console 102 moves downward to enable the extrusion die head 103 to be inserted into the first gear die 301 for extrusion, the magnetic pushing seat 115 slides downward along the corresponding pushing channel 114, and the electromagnet is always in a power-off demagnetizing state in the process.
The extrusion molding table 101 is provided with a plurality of molding switching arc channels 116 in an array on the peripheral side surface thereof, which are communicated with the upper top unloading cavity 112, the angle of the molding switching arc channels 116 is half of the included angle between the adjacent two first gear molds 301 or the adjacent two second gear molds 401 (i.e. if the number of the first gear molds 301 and the second gear molds 401 is set to 6, the included angle between the adjacent two first gear molds 301 or the adjacent two second gear molds 401 is 60 degrees, the angle of the molding switching arc channels 116 is 30 degrees), and the molding switching arc channels 116 are between the adjacent two pushing channels 114; the inner wall of the upper top discharging cavity 112 is fixedly provided with a plurality of axial limit rails 117 which are in one-to-one correspondence with the pushing channels 114, the bottom of the upper top discharging cavity 112 is provided with a plurality of radial guide grooves 118 in a circumferential array, and the radial guide grooves 118 are in one-to-one correspondence with the axial limit rails 117.
In this embodiment of the present invention, the first molding shell 3 further includes a first mold shell plate 302 fixedly disposed inside the mold mounting cavity 111, and the first gear mold 301 is disposed in an array on the first mold shell plate 302; the second forming mold shell 4 further comprises a second mold shell plate 402 which is in clearance fit with the inside of the mold mounting cavity 111, the second gear mold 401 is arranged on the second mold shell plate 402 in an array, a plurality of radial connecting rods 403 are fixedly arranged on the peripheral side surface of the second mold shell plate 402, the radial connecting rods 403 are in sliding fit with the inside of the corresponding forming switching arc channels 116, an external tooth position cutting ring 404 is sleeved outside the extrusion forming table 101, the external tooth position cutting ring 404 is fixedly connected with each radial connecting rod 403, a set of driving system is arranged on the peripheral side of the extrusion forming table 101, the driving system comprises a driving gear meshed with the external tooth position cutting ring 404, each time the driving system runs (after the extrusion forming of a gear blank is completed and the upward movement and the resetting of the extrusion mold head 103 are realized, the driving system is controlled to run once), the radial connecting rods 403 slide from one end to the other end of the corresponding forming switching arc channels 116, at the moment, the second gear mold 401 moves from the middle position of two adjacent first gear molds 301 to the right below the corresponding first gear molds 301, namely, the first gear molds 301 and the corresponding second gear molds 401 are coaxial, a set of driving system is arranged on the peripheral side of the extrusion forming table 101, the driving system is meshed with the external tooth position cutting ring 404, the corresponding gear molds 401, the first gear molds and the first gear molds 401 and the first gear molds and the corresponding gear molds 401 can be prevented from sliding down in the forming process, and the first gear molds, and the pre-forming gear can be prevented from moving.
Second embodiment
On the basis of the first embodiment, the invention further comprises an upper top unloading mechanism 5; the upper top unloading mechanism 5 comprises an upper top unloading assembly 6 coaxially arranged in the upper top unloading cavity 112, and unloading power assemblies 7 which are in one-to-one correspondence with the axial limiting rails 117 are arranged on the periphery of the upper top unloading assembly 6;
the upper top discharging assembly 6 comprises a central guide column 601 fixedly arranged in the upper top discharging cavity 112, an upper top discharging disc 602 is slidably arranged on the central guide column 601, the peripheral side surface of the upper top discharging disc 602 is arranged to be of a conical structure with wide upper part and narrow lower part, the central guide column 601 can be arranged to be of a rectangular structure, and the upper top discharging disc 602 can only move up and down and cannot rotate;
the upper top discharge plate 602 is fixedly provided with axial positioning pipes 603 corresponding to the discharge guide openings 113 one by one, when the extrusion die head 103 is inserted into the first gear die 301 or inserted into the second gear die 401 for extrusion, the upper top discharge plate 602 is attached to the bottom of the lifting control console 102, at this time, each axial positioning pipe 603 is upwardly inserted into the corresponding discharge guide opening 113, a discharge pushing rod 604 is in clearance fit inside the axial positioning pipe 603, a limiting protruding piece 605 is fixedly arranged at the upper end of the discharge pushing rod 604, the limiting protruding piece 605 is in clearance fit with a limiting groove 606 at the top of the axial positioning pipe 603, and through the arrangement, the discharge pushing rod 604 can synchronously move up and down along with the axial positioning pipe 603, and a first permanent magnet 607 is arranged at the lower end of the discharge pushing rod 604.
In this embodiment of the present invention, the unloading power assembly 7 includes a push seat 701 which is clearance-fitted inside the corresponding pushing channel 114, the push seat 701 is slidably fitted with the corresponding axial limit rail 117, a first elastic member 702 connected to the bottom of the push seat 701 is provided inside the upper top unloading chamber 112, and the push seat 701 is reset by the arrangement of the first elastic member 702;
the top of the inclined pushing seat 701 is provided with a magnetic repulsion channel 703, a movable seat 704 is in clearance fit with the inside of the magnetic repulsion channel 703, an axial magnetic supply plate 705 extending to the lower part of the inclined pushing seat 701 is fixedly arranged at the bottom of the movable seat 704, a second permanent magnet is arranged on the surface of the axial magnetic supply plate 705, a third permanent magnet 706 which is repulsive to electromagnetic ferromagnetism is arranged at the top of the movable seat 704, a second elastic piece 707 connected to the bottom of the movable seat 704 is arranged inside the magnetic repulsion channel 703, and the inclined pushing seat 701 can be reset through the arrangement of the second elastic piece 707.
The unloading power assembly 7 further comprises a force translation seat 708, wherein the top of the force translation seat 708 is connected with a first inclined support plate 709 attached to the inclined side wall of the inclined pushing seat 701 through an extension plate, and the top of the first inclined support plate 709 is fixedly provided with a second inclined support plate 710 attached to the peripheral side surface of the upper top unloading disc 602; the top of the force-bearing translation seat 708 is provided with a radial extension channel 711, the bottom of the force-bearing translation seat 708 is provided with a radial sliding opening 712 communicated with the radial extension channel 711, a radial magnetic supply plate 713 is arranged in the radial sliding opening 712 in a sliding manner, and the lower end of the axial positioning tube 603 extends into the corresponding radial sliding opening 712;
when the lifting control console 102 moves downwards to enable the extrusion die head 103 to be inserted into the first gear die 301 for extrusion, the magnetic pushing seat 115 slides downwards along the corresponding pushing channel 114 and pushes the inclined pushing seat 701, horizontal pushing force is generated on the first inclined support plate 709 through the inclined pushing seat 701, so that the force translation seat 708 moves towards the center of the upper top discharging cavity 112, in the process, the axial positioning tube 603 slides along the radial extending channel 711, and simultaneously, under the upward pushing force generated by the second inclined support plate 710 on the upper top discharging disc 602, the lower end part of the axial positioning tube 603 moves from the radial sliding port 712 to the inside of the radial extending channel 711, and the axial positioning tube 603 does not interfere with the movement of the radial magnetic supplying plate 713.
In this embodiment of the present invention, the bottom of the radial magnetic supply plate 713 is fixedly provided with a radial guide plate 714 slidably fitted inside the corresponding radial guide groove 118, and the radial guide groove 118 is internally provided with a third elastic member 715 connected to the radial guide plate 714, and the third elastic member 715 is in a natural state in an initial state; the top of the radial magnetic supply plate 713 is provided with a fourth permanent magnet which is magnetically repulsive to the corresponding first permanent magnet 607, and the end of the radial magnetic supply plate 713 near the first elastic member 702 is provided with a fifth permanent magnet 716 which is magnetically repulsive to the corresponding second permanent magnet.
When the lifting control console 102 moves downwards to enable the extrusion die head 103 to be inserted into the second gear die 401 to finish gear extrusion molding, the electromagnet at the bottom of the magnetic pushing seat 115 is controlled to be electrified to have magnetism, under the action of the magnetic repulsive force of the electromagnet on the third permanent magnet 706 at the top of the moving seat 704, the second permanent magnet on the surface of the axial magnetic supply plate 705 is driven to move downwards to the fifth permanent magnet 716, and the radial magnetic supply plate 713 is driven to move to compress the third elastic piece 715 until the fourth permanent magnet moves to the position below the first permanent magnet 607 under the action of the magnetic repulsive force of the second permanent magnet on the fifth permanent magnet 716, and at the moment, the fourth permanent magnet generates the magnetic repulsive force on the first permanent magnet 607 to enable the discharge pushing rod 604 to move upwards for a distance to push out the gear product after extrusion molding to the top of the die set 2, so that the collection of the extrusion molded gears and the filling of the gear blanks of the next batch are conveniently realized.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The extrusion molding equipment for manufacturing the gear is characterized by comprising an extrusion molding mechanism (1) and a die set (2), wherein the die set (2) is coaxially arranged on the extrusion molding mechanism (1);
the extrusion molding mechanism (1) comprises an extrusion molding table (101), a lifting control table (102) concentric with the extrusion molding table (101) is arranged right above the extrusion molding table, a plurality of extrusion dies (103) are arranged in a circumferential array below the lifting control table (102), and the axial distance between the extrusion dies (103) and the lifting control table (102) is adjustable;
the die set (2) consists of a first forming die shell (3) and a second forming die shell (4); the first molding die shell (3) is fixedly arranged on the extrusion molding table (101) in a coaxial manner, the second molding die shell (4) is rotatably arranged on the extrusion molding table (101) in a coaxial manner, and the second molding die shell (4) is tightly attached to the bottom of the first molding die shell (3);
the first molding die shell (3) comprises a plurality of first gear dies (301) which are arranged in a circumferential array, and the first gear dies (301) are arranged in one-to-one correspondence with the extrusion dies (103);
the second molding die shell (4) comprises a plurality of second gear dies (401) which are arranged in a circumferential array, the second gear dies (401) are arranged in one-to-one correspondence with the first gear dies (301), and the second gear dies (401) are arranged between two adjacent first gear dies (301) in an initial state;
after the gear blank is placed inside the first gear mold (301) and the stamping and preforming are completed through the extrusion die (103), the second gear mold (401) is aligned with the first gear mold (301) by rotating the second forming mold (4), at this time, the gear blank falls inside the corresponding second gear mold (401), and the gear blank is stamped again through the extrusion die (103) to obtain the stamped and formed gear.
2. The extrusion molding equipment for gear manufacturing according to claim 1, wherein the extrusion molding mechanism (1) further comprises an extrusion molding machine frame (104), the extrusion molding table (101) is fixedly arranged on the inner side of the extrusion molding machine frame (104), an extrusion control cylinder (105) is fixedly arranged on the top of the extrusion molding machine frame (104), and the output end of the extrusion control cylinder (105) is fixedly connected with the lifting control table (102).
3. The extrusion molding equipment for gear manufacturing according to claim 2, wherein an internal tooth regulating ring (106) concentric with the lifting console (102) is rotatably arranged at the top of the lifting console, a plurality of limit guide rods (107) are arranged on the inner side of the internal tooth regulating ring (106) in a circumferential array, and the limit guide rods (107) are fixedly connected with the lifting console (102);
the novel extrusion die head is characterized in that an axial movable plate (108) is arranged on the limiting guide rod (107) in a sliding mode, a distance adjusting screw (109) coaxial with the corresponding extrusion die head (103) is fixedly arranged on the surface of the axial movable plate (108), the extrusion die head (103) is fixedly arranged at the lower end of the corresponding distance adjusting screw (109), distance adjusting gears (110) in one-to-one correspondence with the distance adjusting screw (109) are meshed on the inner side of the inner tooth adjusting ring (106), and the distance adjusting gears (110) are fixedly arranged on the peripheral side face of the corresponding distance adjusting screw (109).
4. An extrusion apparatus for manufacturing gears according to claim 3, wherein a die mounting cavity (111) concentric with the extrusion table (101) is provided at the top of the extrusion table (101), an upper top discharge cavity (112) concentric with the extrusion table (101) is provided inside the extrusion table, the upper top discharge cavity (112) is communicated with the die mounting cavity (111) through a discharge guide opening (113), and the discharge guide opening (113) is coaxially provided below the corresponding first gear die (301);
the extrusion molding bench is characterized in that a plurality of pushing channels (114) communicated with the upper top discharging cavity (112) are arranged on the top circumferential array of the extrusion molding bench (101), the pushing channels (114) are arranged in one-to-one correspondence with the first gear dies (301), axial support rods in one-to-one correspondence with the pushing channels (114) are fixedly arranged at the bottom of the lifting control bench (102), magnetic pushing seats (115) matched with the corresponding pushing channels (114) are fixedly arranged at the lower ends of the axial support rods, and electromagnets are arranged at the bottoms of the magnetic pushing seats (115).
5. The extrusion apparatus for gear manufacturing according to claim 4, wherein a plurality of forming switching arc channels (116) communicating with the upper top discharge chamber (112) are arranged in an array on the peripheral side surface of the extrusion table (101), and the forming switching arc channels (116) are interposed between two adjacent pushing channels (114); the inner wall of the upper top discharging cavity (112) is fixedly provided with a plurality of axial limit rails (117) which are in one-to-one correspondence with the pushing channels (114), the bottom of the upper top discharging cavity (112) is provided with a plurality of radial guide grooves (118) in a circumferential array, and the radial guide grooves (118) are in one-to-one correspondence with the axial limit rails (117).
6. The extrusion apparatus for gear manufacturing according to claim 5, wherein the first molding die (3) further comprises a first die case plate (302) fixedly disposed inside the die mounting chamber (111), the first gear die (301) array being disposed on the first die case plate (302);
the second molding die shell (4) further comprises a second die shell plate (402) which is in clearance fit with the inside of the die mounting cavity (111), a second gear die (401) array is arranged on the second die shell plate (402), a plurality of radial connecting rods (403) are fixedly arranged on the peripheral side face of the second die shell plate (402), the radial connecting rods (403) are in sliding fit with the inside of the corresponding molding switching arc channel (116), an external tooth cutting ring (404) is sleeved outside the extrusion molding table (101), and the external tooth cutting ring (404) is fixedly connected with each radial connecting rod (403).
7. Extrusion apparatus for gear manufacturing according to claim 6, further comprising an overhead discharge mechanism (5); the upper top unloading mechanism (5) comprises upper top unloading assemblies (6) coaxially arranged in the upper top unloading cavity (112), and unloading power assemblies (7) which are in one-to-one correspondence with the axial limiting rails (117) are arranged on the peripheral sides of the upper top unloading assemblies (6);
the upper top discharging assembly (6) comprises a central guide column (601) fixedly arranged in the upper top discharging cavity (112), an upper top discharging disc (602) is arranged on the central guide column (601) in a sliding mode, and the peripheral side face of the upper top discharging disc (602) is arranged to be of a conical structure with a wide upper part and a narrow lower part;
the upper top discharging plate (602) is fixedly provided with axial positioning pipes (603) corresponding to the discharging guide openings (113) one by one, a discharging pushing rod (604) is arranged in the axial positioning pipes (603) in a clearance fit mode, a limiting convex piece (605) is fixedly arranged at the upper end of the discharging pushing rod (604), the limiting convex piece (605) is in clearance fit with a limiting groove (606) at the top of the axial positioning pipes (603), and a first permanent magnet (607) is arranged at the lower end of the discharging pushing rod (604).
8. The extrusion apparatus for gear manufacturing according to claim 7, characterized in that said unloading power assembly (7) comprises a thrust seat (701) clearance-fitted inside the corresponding thrust channel (114), said thrust seat (701) being in sliding engagement with the corresponding axial limit rail (117), said upper top unloading chamber (112) being internally provided with a first elastic element (702) connected to the bottom of the thrust seat (701);
the magnetic repulsion type magnetic pushing device is characterized in that a magnetic repulsion channel (703) is arranged at the top of the inclined pushing seat (701), a movable seat (704) is arranged in the magnetic repulsion channel (703) in a clearance fit mode, an axial magnetic supply plate (705) extending to the lower portion of the inclined pushing seat (701) is fixedly arranged at the bottom of the movable seat (704), a second permanent magnet is arranged on the surface of the axial magnetic supply plate (705), a third permanent magnet (706) repulsive to electromagnetic ferromagnetism is arranged at the top of the movable seat (704), and a second elastic piece (707) connected to the bottom of the movable seat (704) is arranged in the magnetic repulsion channel (703).
9. The extrusion molding equipment for gear manufacturing according to claim 8, wherein the unloading power assembly (7) further comprises a force translation seat (708), the top of the force translation seat (708) is connected with a first inclined support plate (709) attached to the inclined side wall of the inclined pushing seat (701) through an extension plate, and the top of the first inclined support plate (709) is fixedly provided with a second inclined support plate (710) attached to the peripheral side surface of the upper top unloading disc (602);
the top of the forced translation seat (708) is provided with a radial extension channel (711), the bottom of the forced translation seat (708) is provided with a radial sliding port (712) communicated with the radial extension channel (711), a radial magnetic supply plate (713) is slidably arranged in the radial sliding port (712), and the lower end of the axial positioning tube (603) extends to the inside of the corresponding radial sliding port (712).
10. The extrusion apparatus for manufacturing gears according to claim 9, wherein the radial magnetic supply plate (713) is fixedly provided with a radial guide plate (714) slidably fitted inside the corresponding radial guide groove (118), and the radial guide groove (118) is internally provided with a third elastic member (715) connected with the radial guide plate (714); the top of the radial magnetic supply plate (713) is provided with a fourth permanent magnet which is magnetically repulsive to the corresponding first permanent magnet (607), and the end of the radial magnetic supply plate (713) close to the first elastic piece (702) is provided with a fifth permanent magnet (716) which is magnetically repulsive to the corresponding second permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311847871.2A CN117483634B (en) | 2023-12-29 | 2023-12-29 | Extrusion equipment for gear manufacturing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311847871.2A CN117483634B (en) | 2023-12-29 | 2023-12-29 | Extrusion equipment for gear manufacturing |
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| CN117483634A CN117483634A (en) | 2024-02-02 |
| CN117483634B true CN117483634B (en) | 2024-03-01 |
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| US3910091A (en) * | 1974-04-30 | 1975-10-07 | Ford Motor Co | Apparatus and method for cold extrusion of gears |
| CN102059267A (en) * | 2010-11-24 | 2011-05-18 | 上海交通大学 | Inside screw cylindrical gear rotary cold extruding die |
| KR20110066020A (en) * | 2009-12-10 | 2011-06-16 | 한국기계연구원 | A manufacturing method of helical gear using forward extrusion mold with helical gear tooth |
| CN104801651A (en) * | 2014-01-24 | 2015-07-29 | 施瓦姆汽车技术有限公司 | Method of manufacturing gear with double teeth patterns involving forging and two stage cold extrusion process |
| KR20170046450A (en) * | 2015-10-21 | 2017-05-02 | 한호산업(주) | Cold forging device for manufacturing parking gear |
| CN113399581A (en) * | 2021-08-05 | 2021-09-17 | 江苏飞船股份有限公司 | Cold extrusion molding device for gear manufacturing |
| CN217968566U (en) * | 2022-08-12 | 2022-12-06 | 安徽中环软磁科技有限公司 | Magnetic material machine-shaping device |
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2023
- 2023-12-29 CN CN202311847871.2A patent/CN117483634B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910091A (en) * | 1974-04-30 | 1975-10-07 | Ford Motor Co | Apparatus and method for cold extrusion of gears |
| KR20110066020A (en) * | 2009-12-10 | 2011-06-16 | 한국기계연구원 | A manufacturing method of helical gear using forward extrusion mold with helical gear tooth |
| CN102059267A (en) * | 2010-11-24 | 2011-05-18 | 上海交通大学 | Inside screw cylindrical gear rotary cold extruding die |
| CN104801651A (en) * | 2014-01-24 | 2015-07-29 | 施瓦姆汽车技术有限公司 | Method of manufacturing gear with double teeth patterns involving forging and two stage cold extrusion process |
| KR20170046450A (en) * | 2015-10-21 | 2017-05-02 | 한호산업(주) | Cold forging device for manufacturing parking gear |
| CN113399581A (en) * | 2021-08-05 | 2021-09-17 | 江苏飞船股份有限公司 | Cold extrusion molding device for gear manufacturing |
| CN217968566U (en) * | 2022-08-12 | 2022-12-06 | 安徽中环软磁科技有限公司 | Magnetic material machine-shaping device |
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|---|---|
| CN117483634A (en) | 2024-02-02 |
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