CN108067542B - Machining method and machining production line for automobile air outlet end cone shell - Google Patents
Machining method and machining production line for automobile air outlet end cone shell Download PDFInfo
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- CN108067542B CN108067542B CN201711348395.4A CN201711348395A CN108067542B CN 108067542 B CN108067542 B CN 108067542B CN 201711348395 A CN201711348395 A CN 201711348395A CN 108067542 B CN108067542 B CN 108067542B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a processing method and a processing production line of an automobile air outlet end cone shell, wherein the processing method comprises the procedures of blanking, forming, shaping, small-mouth port, side cutting and cutting, and the processing production line aims at complex molded surfaces, performs stamping forming in multiple steps, ensures the forming effect of the complex molded surfaces, has no defects of cracking and the like, and has simple and reasonable structure and good forming effect for stamping dies of all procedures. The invention provides a processing method and a processing production line for an automobile air outlet end cone shell, which provide a reasonable processing method and a processing die aiming at products, can save materials and are suitable for mass processing.
Description
Technical Field
The invention belongs to the field of exhaust systems, and particularly relates to a processing method and a processing production line of an automobile air outlet end cone shell.
Background
The automobile exhaust system is an important system component in the working process of an automobile engine, the port of the air outlet end cone shell in the exhaust system is communicated with the tail end of the catalytic converter cylinder body, the connecting part of the two ports is more complex in molded surface, the requirement on the precision of the component is high, in order to ensure that carbon deposition is reduced as much as possible in an air flow channel, the shell is not wrinkled, and the like, and the existing air inlet end cone processing method is casting and molding, so that the efficiency is very low, and the defects of cracking, air bubbles, and the like are easy to occur, so that the use is influenced.
The existing novel automobile air outlet end cone shell is in a cone cover structure as shown in figures 1-3, two ends of the air outlet end cone shell are provided with communicated ports, each port comprises a small end port and a large end port, and the small end ports and the large end ports form an air flow channel; the gas outlet end cone shell comprises a first pre-catalysis gas outlet half shell and a second pre-catalysis gas outlet half shell, the first pre-catalysis gas outlet half shell and the second pre-catalysis gas outlet half shell are two half shell shells of which the gas outlet end cone shell is separated along the direction of a gas flow channel, the edges of the first pre-catalysis gas outlet half shell and the second pre-catalysis gas outlet half shell are provided with bonding edges, and the first pre-catalysis gas outlet half shell and the second pre-catalysis gas outlet half shell are mutually overlapped and spliced and welded through the bonding edges to form the gas outlet end cone shell. The profile has a plurality of characteristics, irregular shape and high processing precision, and is difficult to manufacture by a common method or difficult to form at one time, and the processing is required to be performed in multiple steps, so that a proper processing method and a proper processing die are selected.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a processing method and a processing production line for an automobile air outlet end cone shell, and provides a reasonable processing method and a processing die aiming at products.
The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the invention is as follows:
a processing method of an automobile air outlet end cone shell comprises the following processing steps:
step one: blanking: the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are processed by connecting materials, the same blanking piece is used for molding processing, the pattern layout mode is a straight continuous pattern layout mode, and the blanking piece is approximately round;
step two: and (3) forming: carrying out primary drawing on the blanking piece through a forming die, and drawing out the integral molded surfaces of the first pre-catalytic gas half shell and the second pre-catalytic gas half shell; drawing an arc-shaped structure of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell to form a large end and a small end of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell, wherein the large ends of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are in an integrated butt joint state;
step three: shaping: shaping the drawing piece formed in the preamble through a shaping die;
step four: cutting a small port: cutting off the residual material of the small end port of the shaping piece in the third step, and obtaining the complete profile of the small end port after cutting off the residual material;
step five: first side cutting: trimming two side edges of the shell in a middle section area where the large ends of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are connected, and cutting out the outline shapes of two sides of the large end edges of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell;
step six: second side cutting: trimming the two side edges of the shells of the first pre-catalytic gas half shell and the second pre-catalytic gas half shell, and cutting off redundant residual materials to obtain side edge contour lines of the two half shells;
step seven: trimming: cutting the connecting part of the first pre-catalysis gas half shell and the large end of the second pre-catalysis gas half shell, and trimming the end face of the large end to trim the profile of the complete large end port; the cutting process and the large end trimming process are completed in the same stamping stroke, and finished products of the first pre-catalyzed gas half shell and the second pre-catalyzed gas half shell are obtained.
Further, the device comprises a blanking die, a forming die, a sizing die, a small cutting die, a first side cutting die, a second side cutting die and a trimming die, wherein a plate material for processing the air outlet end cone shell sequentially passes through the blanking die, the forming die, the sizing die, the small cutting die, the first side cutting die, the second side cutting die and the trimming die for punching, and a workpiece processed by a subsequent die is continuously processed on the basis of a workpiece processed by a preceding die; the blanking die, the forming die and the sizing die are all single-step dies; and the small die and the trimming die are of a two-procedure common-mode structure.
Further, the blanking die comprises a first lower die plate, a first upper die plate, a first ejector pin and a first positioning pin, wherein a first male die is arranged at the bottom of the first upper die plate, a first female die is arranged on the first lower die plate, the first upper die plate opens and closes relative to the first lower die plate, and the closing height is limited through a first limiting column; the bottom of the first upper die plate is provided with a first material pressing plate, the first material pressing plate is sleeved on the outer side of the first male die, a high-strength adhesive is coated between the first material pressing plate and the first upper die plate, a pin hole is formed in the first male die in the direction perpendicular to the first female die, a first ejector pin is arranged in the pin hole, and the first ejector pin is connected with the first upper die plate through a first rectangular spring; the first locating pins are distributed around the outline of the first female die and comprise guide locating pins and size locating pins, at least two guide locating pins are respectively arranged on two sides of the moving direction of the plate, at least one size locating pin is arranged in the moving direction perpendicular to the plate, the size locating pins are arranged at one end of the plate which is blanked, and the size locating pins are tangential to the edge of the outline of the plate formed after the previous blanking and punching.
Further, the forming die comprises a second upper die plate, a second lower die plate, a second positioning block and a second equal-height block, a second female die is arranged at the bottom of the second upper die plate, a second male die is arranged above the second lower die plate, the second upper die plate opens and closes relative to the first lower die plate, and the closing height is limited through a second limiting column; a plurality of second ejection pins are arranged in the female die; the second lower die plate is provided with a second material pressing plate, a plurality of second equal-height blocks are embedded in the second material pressing plate, the second equal-height blocks are distributed around the outline of the second male die, the equal-height blocks are higher than the second material pressing plate, when the second upper die plate and the second lower die plate are matched, the bottom surface of the second female die is attached to the plurality of equal-height blocks, and the gaps between the second female die and the second material pressing plate are identical and equal; the second positioning blocks are distributed on the periphery of the outline of the second male die, the second positioning blocks are respectively abutted against and tangentially arranged with the outline edge of the blanked plate, and the second positioning blocks are used for adjusting the distance between the second positioning blocks and the second male die through an adjusting mechanism.
Further, the adjusting mechanism comprises an adjusting block and a fastening bolt, a plurality of rectangular sliding grooves are concavely formed in the second lower die plate, the sliding grooves are formed in the periphery of the outline of the second male die, the adjusting block is arranged in the sliding grooves in a sliding manner, and the adjusting block is adjusted in a tightness manner through the fastening bolt; the one end of regulating block with the work piece contact is the contact end, the contact end is convex structure, convex structure is tangent with the work piece edge.
Further, the sizing die comprises a third upper die plate, a third lower die plate and a third locating pin, a third female die is arranged at the bottom of the third upper die plate, a third male die is arranged above the third lower die plate, the third upper die plate opens and closes relative to the third lower die plate, and the closing height is limited through a third limit column; the third male die and the third female die are respectively attached to the inner contour and the outer contour of the workpiece after being molded by the molding die; a plurality of third ejection pins are arranged in the third female die, a third pressing plate is arranged on the periphery of the outline of the third male die, a plurality of third positioning pins are arranged on the third pressing plate, the third positioning pins are arranged on the outer side of the third male die, and the third positioning pins are abutted against the edge of a workpiece formed by the forming die.
Further, the small end port cutting die comprises a fourth upper die holder and a fourth lower die holder, the fourth upper die holder is used for opening and closing the die up and down relative to the fourth lower die holder through a guide assembly, and the fourth upper die holder and the fourth lower die holder limit the die closing height through a limit column;
the fourth upper die holder comprises a fourth upper die plate, a fourth upper cutter and a fourth pressing plate, the fourth upper cutter is arranged on the fourth upper die plate, the fourth pressing plate is arranged on the periphery of the fourth upper cutter and is arranged on the fourth upper die plate through a fourth unloading screw, the fourth pressing plate moves up and down relative to the fourth upper cutter through a fourth reset spring, the fourth pressing plate is arranged in a guiding way through a fourth guide block, a concave structure is arranged at the bottom of the fourth pressing plate, and the profile of the concave structure is identical with the profile of the outer sides of the two half shells;
the fourth die holder comprises a fourth lower die plate, a first positioning block A and a first positioning block B, wherein the first positioning block A and the first positioning block B are arranged at intervals, a cutter concave cavity is formed between the first positioning block A and the first positioning block B, when the fourth upper cutter is used for cutting down, gaps exist between two side edges of the fourth upper cutter and the first positioning block A and the first positioning block B respectively, the first positioning block A and the first positioning block B both comprise positioning male die molded surfaces, and the positioning male die molded surfaces are matched with the inner side molded surfaces of the half-shell connecting piece.
Further, the large end port cutting die comprises a seventh upper die holder and a seventh lower die holder, the seventh upper die holder is used for opening and closing the die up and down relative to the seventh lower die holder through a guide assembly, and the seventh upper die holder and the seventh lower die holder limit the die closing height through a limit column;
the seventh upper die holder comprises a seventh upper die plate, a cutter B and a pressing plate B, wherein the cutter B is arranged at the bottom of the seventh upper die plate, a knife edge insert B is arranged on the cutter B, the pressing plate B is arranged on the outer side of the cutter B and arranged on the seventh upper die plate through a discharging screw, the pressing plate B can move up and down relative to the cutter B through a reset spring, the bottom of the pressing plate B comprises a concave molded surface which is matched with the upper surface profile of the half-shell connected piece, the cutter B is positioned right above the middle connected area of the half-shell connected piece, and the half-shell connected piece is cut and separated into two independent half-shell pieces through the cutter B;
the seventh die holder comprises a seventh die plate and a second positioning block B, the second positioning block B is arranged on the seventh die plate, the second positioning block B comprises a positioning male die molded surface, and the positioning male die molded surface is matched with the inner molded surface of the half-shell connecting piece.
The beneficial effects are that: the invention has the advantages of saving materials, reasonably dividing the working procedure by steps, ensuring the complete molded surface of the shell, avoiding the conditions of cracking and the like, along with good molding effect, simple structure of the used mold, high processing precision of the produced parts, effectively improving the production efficiency and being suitable for mass processing.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an outlet end cone housing of the present invention;
FIG. 2 is a cross-sectional view of the outlet end cone housing of the present invention;
FIG. 3 is a side view of the overall structure of the outlet end cone housing of the present invention;
FIG. 4 is a schematic diagram of a blanking sheet layout in step one of the present invention;
FIG. 5 is a schematic view of a molded profile product of step two of the present invention;
FIG. 6 is a schematic view of the shaped profile product of step three of the present invention;
FIG. 7 is a schematic view of a product of the present invention with a step four cut end small port profile;
FIG. 8 is a schematic view of a step four cut other end small port profile product of the present invention;
FIG. 9 is a schematic view of a first cut-to-side product of step five of the present invention;
FIG. 10 is a schematic diagram of a second side cut product of step six of the present invention;
FIG. 11 is a schematic illustration of a cut-away of a housing interconnect according to step seven of the present invention;
FIG. 12 is a schematic view of the cutting of the end face residue of the other half shell after the cutting in step seven of the invention;
FIG. 13 is a front view of the overall structure of the blanking die of the present invention;
FIG. 14 is a top view of the overall structure of the blanking die of the present invention;
FIG. 15 is a front view showing the overall structure of the molding die of the present invention;
FIG. 16 is a top view of the lower die holder of the forming die of the present invention;
FIG. 17 is a top view of the upper die holder of the forming die of the present invention;
FIG. 18 is a schematic view of an adjusting mechanism of the forming mold of the present invention;
FIG. 19 is a front view of the overall structure of the shaping mold of the present invention;
FIG. 20 is a front view of the overall structure of the small end port cutting die of the present invention;
FIG. 21 is a top view of the lower die holder of the small end port cutting die of the invention;
FIG. 22 is a top view of the upper die holder of the small end port cutting die of the present invention;
FIG. 23 is a front view of the overall structure of the first side cutting die of the present invention;
FIG. 24 is a top view of the lower die holder structure of the first side cutting die of the present invention;
FIG. 25 is a front view of the overall structure of the second side cutting die of the present invention;
FIG. 26 is a top view of the lower die holder structure of the second side cutting die of the present invention;
FIG. 27 is a schematic view of the overall structure of the large end port cutting die of the present invention;
fig. 28 is a top view of the lower die holder of the large end port cutting die of the invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 4 to 12, the processing method of the automobile air outlet end cone shell comprises the following steps:
step one: blanking: the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are processed by connecting materials, the same blanking piece is used for molding processing, the pattern layout mode is a straight continuous pattern layout mode, and the blanking piece is approximately round;
step two: and (3) forming: carrying out primary drawing on the blanking piece through a forming die, and drawing out the integral molded surfaces of the first pre-catalytic gas half shell and the second pre-catalytic gas half shell; drawing an arc-shaped structure of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell to form a large end and a small end of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell, wherein the large ends of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are in an integrated butt joint state;
step three: shaping: shaping the drawing piece formed in the preamble through a shaping die;
step four: cutting a small port: cutting off the residual material of the small end port of the shaping piece in the third step, and obtaining the complete profile of the small end port after cutting off the residual material;
step five: first side cutting: trimming two side edges of the shell in a middle section area where the large ends of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are connected, and cutting out the outline shapes of two sides of the large end edges of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell;
step six: second side cutting: trimming the two side edges of the shells of the first pre-catalytic gas half shell and the second pre-catalytic gas half shell, and cutting off redundant residual materials to obtain side edge contour lines of the two half shells;
step seven: trimming: cutting the connecting part of the first pre-catalysis gas half shell and the large end of the second pre-catalysis gas half shell, and trimming the end face of the large end to trim the profile of the complete large end port; the cutting process and the large end trimming process are completed in the same stamping stroke, and finished products of the first pre-catalyzed gas half shell and the second pre-catalyzed gas half shell are obtained.
Further, the device comprises a blanking die, a forming die, a sizing die, a small cutting die, a first side cutting die, a second side cutting die and a trimming die, wherein a plate material for processing the air outlet end cone shell sequentially passes through the blanking die, the forming die, the sizing die, the small cutting die, the first side cutting die, the second side cutting die and the trimming die for punching, and a workpiece processed by a subsequent die is continuously processed on the basis of a workpiece processed by a preceding die; the blanking die, the forming die and the sizing die are all single-step dies; and the small die and the trimming die are of a two-procedure common-mode structure.
As shown in fig. 13 and 14, the blanking die comprises a first lower die plate 1-2, a first upper die plate 1-3, a first ejector pin 1-16 and a first positioning pin, wherein a first male die 1-8 is arranged at the bottom of the first upper die plate 1-3, a first female die 1-5 is arranged on the first lower die plate 1-2, the first male die 1-8 is fixed on the first upper die plate through a first upper die fixing plate 1-6, the first upper die plate 1-3 performs die opening and closing relative to the first lower die plate 1-2 through a rolling guide 1-10, and the die closing height is limited through a first limit post 1-9; the bottom of the first upper die plate 1-3 is provided with a first material pressing plate 1-7, the first material pressing plate 1-7 is sleeved outside the first male die 1-8, a high-strength adhesive 1-13 is coated between the first material pressing plate 1-7 and the first upper die plate 1-3, a pin hole is formed in the first male die 1-8 in a direction perpendicular to the first female die, a first ejector pin 1-16 is arranged in the pin hole, and the first ejector pin 1-16 is connected with the first upper die plate 1-3 through a first rectangular spring 1-11; the blanking piece is prevented from being adhered to the first male die 1-8 through the ejector pins 1-16, the blanking piece can be enabled to fall out of the female die, a plurality of first positioning pins are distributed around the outline of the first female die 1-5, each first positioning pin comprises a guiding positioning pin 1-14 and a size positioning pin 1-15, at least two guiding positioning pins 1-14 are respectively arranged on two sides along the moving direction of the plate, at least one size positioning pin 1-15 is arranged in the moving direction perpendicular to the plate, the size positioning pins 1-15 are arranged at one blanking end of the plate, and the size positioning pins 1-15 are tangential to the outline edge of the plate formed after the previous blanking and punching. The two sides of the plate moving direction are limited by the guide positioning pins 1-14, so that larger deviation is prevented, the dimension positioning pins 1-15 are arranged in front of the plate feeding direction, after blanking, the plate moves forward, and the edges of the plate can be abutted against the dimension positioning pins 1-15 and blanking is performed next time.
15, 16 and 17, the forming die comprises a second upper die plate 2-1, a second lower die plate 2-2, a second positioning block 2-13 and a second equal-height block 2-14, wherein a second female die 2-6 is arranged at the bottom of the second upper die plate 2-1, a second male die 2-10 is arranged above the second lower die plate 2-2, the second upper die plate 2-1 performs die opening and die closing relative to the first lower die plate 2-2, and the die closing height is limited by a second limiting column 2-11; a plurality of second ejection pins 2-15 are arranged in the female die 2-6; the workpiece is prevented from being adhered to a second male die, a fixed column 2-16 is arranged at the bottom of the second male die, the formed workpiece can be ejected out, a second pressing plate 2-7 is arranged on a second lower die plate 2-2, guide blocks 2-12 are arranged on two sides of the second pressing plate and used for guiding the second pressing plate 2-7, a plurality of second equal-height blocks 2-14 are embedded in the second pressing plate 2-7, the second equal-height blocks 2-14 are distributed around the outline of the second male die 2-10, the equal-height blocks 2-14 are higher than the second pressing plate 2-7, when the second upper die plate 2-1 and the second lower die plate 2-2 are matched, the bottom surface of the second female die 2-6 is attached to the equal-height blocks 2-14, and the gaps between the second female die 2-6 and the second pressing plate 2-7 are identical; the clearance between the female die and the pressing plate is ensured to be uniform, the thickness of the shell is uniform during stamping forming, a plurality of second positioning blocks 2-13 are distributed and arranged on the periphery of the outline of the second male die 2-10, the second positioning blocks 2-13 are respectively abutted to and tangentially arranged on the edge of the outline of the blanked plate, and the second positioning blocks 2-13 adjust the distance between the second positioning blocks 2-13 and the second male die 2-10 through an adjusting mechanism 2-20. The positioning block is designed to position the material sheets, so that the material sheets are ensured to be consistent in position; and the second locating block adopts an adjustable form, so that the position of the material sheet is conveniently debugged in the test molding process.
As shown in fig. 18, the adjusting mechanism 2-20 comprises an adjusting block 2-201 and a fastening bolt 2-202, the second lower die plate 2-2 is concavely provided with a plurality of rectangular sliding grooves 2-204, the sliding grooves 2-204 are formed around the outline of the second male die 2-10, the adjusting block 2-201 is slidably arranged in the sliding grooves 2-204, and the adjusting block is tightly adjusted through the fastening bolt; one end of the adjusting block 2-201, which is contacted with the workpiece, is a contact end 2-205, the contact end 2-205 is in a circular arc-shaped structure, and the circular arc-shaped structure is tangent with the edge of the workpiece. The second positioning block with adjustable is used for facilitating the debugging process, the positioning block is in closer contact with the blanking piece, the blanking piece is prevented from moving during forming, and the arc-shaped contact end can prevent the positioning block from deforming the blanking piece.
As shown in fig. 19, the sizing die comprises a third upper die plate 3-1, a third lower die plate 3-2 and a third positioning pin 3-14, wherein a third female die 3-6 is arranged at the bottom of the third upper die plate 3-1, a third male die 3-10 is arranged above the third lower die plate 3-2, the third upper die plate 3-1 performs die opening and closing relative to the third lower die plate 3-2, and the die closing height is limited by a third limiting column 3-11; the third male die 3-10 and the third female die 3-6 are respectively attached to the inner contour and the outer contour of the workpiece after being molded by the molding die; a plurality of third ejection pins 3-15 are arranged in the third female die 3-6, a third pressing plate 3-7 is arranged on the periphery of the outline of the third male die 3-10, third guide columns 3-12 are arranged on two sides of the third pressing plate 3-7, the third pressing plate is guided through the third guide columns 3-12, a plurality of third positioning pins 3-14 are arranged on the third pressing plate 3-7, a plurality of third positioning pins 3-14 are arranged on the outer side of the third male die 3-10, and the third positioning pins 3-14 are abutted against the edge of a workpiece formed by a forming die. The workpiece is shaped through the shaping die, so that the molded surface of the workpiece is smooth, defects are reduced, and the molded surface size of the workpiece is achieved.
As shown in fig. 20 to 22, the small end port cutting mold comprises a fourth upper mold base and a fourth lower mold base, the fourth upper mold base performs up-and-down mold opening and closing relative to the fourth lower mold base through a guide component, the guide component is in rolling guide, and the fourth upper mold base and the fourth lower mold base define mold closing height through a limit column 4-14;
the fourth upper die holder comprises a fourth upper die plate 4-8, a fourth upper cutter 4-12 and a fourth material pressing plate 4-11, wherein the fourth upper cutter 4-12 is arranged on the fourth upper die plate 4-8, the fourth material pressing plate 4-11 is arranged on the periphery of the fourth upper cutter 4-12 and is arranged on the fourth upper die plate 4-8 through a fourth unloading screw 4-17, the fourth material pressing plate 4-11 moves up and down relative to the fourth upper cutter 4-12 through a fourth reset spring 4-18, the fourth material pressing plate 4-11 is guided and arranged through a fourth guide block 5-15, the bottom of the fourth material pressing plate 4-11 is provided with a concave structure, and the profile of the concave structure is matched with the profile of the outer sides of the two half shells; the cutting machine further comprises a fourth upper base plate 4-9 and a fourth upper fixing plate 4-10, wherein the fourth upper cutter 4-12 is fixedly connected with a fourth upper template through the fourth upper fixing plate 4-10 and the fourth upper base plate 4-9 in sequence; the fourth unloading screw 4-17 penetrates through the fourth upper base plate 4-9 and the fourth upper fixing plate to be connected with the fourth pressing plate 4-11, and limits the fourth pressing plate; an upper cutter insert 4-13 is embedded on the fourth upper cutter 4-12, so that the cutting edge after the cutter is worn can be replaced conveniently;
the fourth die holder comprises a fourth die plate 4-3, a first positioning block A4-5 and a first positioning block B4-6, wherein the first positioning block A4-5 and the first positioning block B4-6 are arranged at intervals, a cutter concave cavity 4-16 is formed between the first positioning block A4-5 and the first positioning block B4-6, when the fourth upper cutter 4-12 is used for cutting down, gaps exist between two side edges of the fourth upper cutter 4-12 and the first positioning block A4-5 and the first positioning block B4-6 respectively, and the first positioning block A4-5 and the first positioning block B4-6 are provided with positioning male die profiles which are matched with the inner side profiles of the half-shell connecting piece.
The lower die comprises a lower die plate, a lower die plate and a lower die plate, and is characterized by further comprising a lower fourth mounting plate 4-1, lower die legs 4-2 and a lower die plate 4-4, wherein the first positioning block A4-5 and the first positioning block B4-6 are connected with the lower die plate through the lower die plate 4-4, and the bottom of the lower die plate is connected with the lower mounting plate 4-1 through a plurality of lower die legs 4-2; the edge inserts 4-7 are arranged on one sides of the first positioning blocks A4-5 and the first positioning blocks B4-6, which are close to the fourth upper cutter, so that the cutting edges of the lower cutter after being worn are replaced conveniently; the knife edge inserts 4-7 are arranged corresponding to the fourth upper cutters 4-12.
As shown in fig. 23 and 24, the first side cutting die comprises a fifth lower die holder and a fifth upper die holder for opening and closing the die relative to the fifth lower die holder, the fifth upper die holder comprises a fifth upper die plate 5-2, a fifth pressing plate 5-7 and a first lower inclined wedge, the fifth pressing plate 5-7 is arranged at the bottom of the fifth upper die plate 5-2, the fifth pressing plate 5-7 is vertically displaced relative to the fifth upper die plate 5-2 through a discharging screw 5-22 and a rectangular spring 5-21, the first lower inclined wedge comprises a first inclined wedge component A5-13 and a first inclined wedge component B5-14, and the first inclined wedge component A5-13 and the first inclined wedge component B5-14 are respectively provided with a first side punch A5-12 and a first side punch B5-8; the fifth lower die holder comprises a fifth lower die plate 5-1 and a fifth lower locating plate 5-5 arranged on the fifth lower die plate 5-1, and the fifth lower locating plate 5-5 comprises a first locating molded surface which is matched with the molded surface of the first pre-catalysis air inlet half shell.
As shown in fig. 25 and 26, the second side cutting die comprises a sixth lower die holder and a sixth upper die holder for opening and closing the die relative to the sixth lower die holder, the sixth upper die holder comprises a sixth upper die plate 6-2, a sixth pressing plate 6-12 and a second lower inclined wedge, the sixth pressing plate 6-12 is arranged at the bottom of the sixth upper die plate 6-2, the sixth pressing plate 6-12 moves up and down relative to the sixth upper die plate 6-2, the second lower inclined wedge comprises a second inclined wedge component A6-10 and a second inclined wedge component B6-11, and the second inclined wedge component A6-10 and the second inclined wedge component B6-11 are respectively provided with a second side punch A6-13 and a second side punch B6-14; the sixth lower die holder comprises a sixth lower die plate 6-1 and a sixth lower locating plate 6-8 arranged on the sixth lower die plate 6-1, and the sixth lower locating plate 6-8 comprises a second locating molded surface which is matched with the molded surface of the second pre-catalysis air inlet half shell.
As shown in fig. 27 and 28, the large end port cutting mold comprises a seventh upper mold base and a seventh lower mold base, the seventh upper mold base performs up-and-down mold opening and closing relative to the seventh lower mold base through a guide assembly, and the seventh upper mold base and the seventh lower mold base define a mold closing height through a limit post 28;
the seventh upper die holder comprises a seventh upper die plate 16, a cutter B27 and a pressing plate B22, wherein the cutter B27 is arranged at the bottom of the seventh upper die plate 16, a knife edge insert B12 is arranged on the cutter B, the cutter B is convenient to process and replace after abrasion, the pressing plate B22 is arranged on the outer side of the cutter B27, the pressing plate B22 is arranged on the seventh upper die plate 16 through a discharging screw, the pressing plate B22 can move up and down relative to the cutter B through a reset spring, the bottom of the pressing plate B22 comprises a concave molded surface which is matched with the upper surface profile molded surface of the half-shell connected piece, the cutter B27 is positioned right above the middle connected area of the half-shell connected piece, and the half-shell connected piece is cut and separated into two independent half-shell pieces through the cutter B27;
the seventh die holder comprises a seventh die plate 3 and a second positioning block B11, the second positioning block B11 is arranged on the seventh die plate 3, the second positioning block B11 comprises a positioning male die surface, and the positioning male die surface is matched with the inner side surface of the half-shell connecting piece. Cutting and separating the shell connecting piece through a cutter B to obtain two independent half shell shells, and simultaneously forming the large end profile of at least one half shell when cutting, so that the size precision is achieved when cutting; or simultaneously to achieve the desired dimensional accuracy of both half shells when cut.
The cutter A21 is arranged on the seventh upper die plate 16, a knife edge insert A7 is arranged on the cutter A21, the material pressing plate A19 is arranged on the outer side of the cutter A21, the material pressing plate A19 is arranged on the seventh upper die plate 16 through a discharging screw, the material pressing plate A19 can move up and down relative to the cutter A through a reset spring, and the bottom of the material pressing plate A19 comprises a concave molded surface which is matched with the molded surface of the upper surface profile of the half-shell integrated piece; the cutters A21 are arranged at intervals of the cutters B27, and the cutters A and B respectively carry out molding of the large end port molded surface on the two half shell pieces; the second positioning block A6 is arranged on the seventh lower die plate 3, the second positioning block A6 comprises a positioning male die molded surface, and the positioning male die molded surface is matched with the inner molded surface of the half-shell connecting piece. Because there is great deckle edge when cutting open the big end terminal surface of two half shell shells when reaching the drawing size to shaping, or because cutter sharpness problem leads to the slight deformation of deckle edge or port profile, consequently, when cutting open the casing disjunctor spare, make the big end direct molding of one of them half shell go out the profile, another half shell remains the clout overlap, and carry out the excision again to the clout overlap through second locating piece A6 and cutter A21, guarantee the dimensional accuracy of its big end terminal surface, set up two processes in same mould, can save the manufacturing cost of mould, and two processes common mode has improved production efficiency by a wide margin.
The cutter A21 is fixed at the bottom of the seventh upper die plate through the cutter fixing plate 20, a fixing block 9 is arranged on the seventh lower die plate opposite to the cutter fixing plate, a knife edge insert 8 is arranged on the fixing block 9, the knife edge insert 8 is arranged corresponding to the cutter A, and the knife edge insert 8 is convenient to replace during punching and cutting edge abrasion.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (8)
1. A processing method of an automobile air outlet end cone shell is characterized by comprising the following steps: the method comprises the following process steps:
step one: blanking: the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are processed by connecting materials, the same blanking piece is used for molding processing, the pattern layout mode is a straight continuous pattern layout mode, and the blanking piece is approximately round;
step two: and (3) forming: carrying out primary drawing on the blanking piece through a forming die, and drawing out the integral molded surfaces of the first pre-catalytic gas half shell and the second pre-catalytic gas half shell; drawing an arc-shaped structure of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell to form a large end and a small end of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell, wherein the large ends of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are in an integrated butt joint state;
step three: shaping: shaping the drawing piece formed in the preamble through a shaping die;
step four: cutting a small end port: cutting off the residual material of the small end port of the shaping piece in the third step, and obtaining the complete profile of the small end port after cutting off the residual material;
step five: first side cutting: trimming two side edges of the shell in a middle section area where the large ends of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell are connected, and cutting out the outline shapes of two sides of the large end edges of the first pre-catalysis gas half shell and the second pre-catalysis gas half shell;
step six: second side cutting: trimming the two side edges of the shells of the first pre-catalytic gas half shell and the second pre-catalytic gas half shell, and cutting off redundant residual materials to obtain side edge contour lines of the two half shells;
step seven: trimming: cutting the connecting part of the first pre-catalysis gas half shell and the large end of the second pre-catalysis gas half shell, and trimming the end face of the large end to trim the profile of the complete large end port; the cutting process and the large end trimming process are completed in the same stamping stroke, and finished products of the first pre-catalyzed gas half shell and the second pre-catalyzed gas half shell are obtained.
2. A process line for carrying out the process for machining the cone housing of the automobile air outlet end of claim 1, which is characterized in that: the device comprises a blanking die, a forming die, a sizing die, a small end port cutting die, a first side cutting die, a second side cutting die and a trimming die, wherein a plate material for processing the air outlet end cone shell sequentially passes through the blanking die, the forming die, the sizing die, the small end port cutting die, the first side cutting die, the second side cutting die and the trimming die for punching, and a workpiece processed by a subsequent die is continuously processed on the basis of a workpiece processed by a preceding die; the blanking die, the forming die and the sizing die are all single-step dies; the small end port cutting die and the trimming die are of a two-procedure common-mode structure.
3. A process line according to claim 2, characterized in that: the blanking die comprises a first lower die plate (1-2), a first upper die plate (1-3), a first ejector pin (1-16) and a first positioning pin, wherein a first male die (1-8) is arranged at the bottom of the first upper die plate (1-3), a first female die (1-5) is arranged on the first lower die plate (1-2), the first upper die plate (1-3) performs die opening and die closing relative to the first lower die plate (1-2), and the die closing height is limited through a first limiting column (1-9); the bottom of the first upper die plate (1-3) is provided with a first material pressing plate (1-7), the first material pressing plate (1-7) is sleeved outside the first male die (1-8), a high-strength adhesive (1-13) is coated between the first material pressing plate (1-7) and the first upper die plate (1-3), a pin hole is formed in the first male die (1-8) in a direction perpendicular to the first female die, a first ejector pin (1-16) is arranged in the pin hole, and the first ejector pin (1-16) is connected with the first upper die plate (1-3) through a first rectangular spring (1-11); the first locating pins are distributed around the outline of the first female die (1-5), each first locating pin comprises a guide locating pin (1-14) and a size locating pin (1-15), at least two guide locating pins (1-14) are respectively arranged on two sides of the moving direction of the plate, at least one size locating pin (1-15) is arranged in the moving direction perpendicular to the plate, the size locating pins (1-15) are arranged at one blanking end of the plate, and the size locating pins (1-15) are tangential to the edge of the outline of the plate formed after the preceding blanking and punching.
4. A process line according to claim 2, characterized in that: the forming die comprises a second upper die plate (2-1), a second lower die plate (2-2), a second positioning block (2-13) and a second equal-height block (2-14), wherein a second female die (2-6) is arranged at the bottom of the second upper die plate (2-1), a second male die (2-10) is arranged above the second lower die plate (2-2), the second upper die plate (2-1) performs die opening and die closing relative to the second lower die plate (2-2), and the die closing height is limited through a second limiting column (2-11); a plurality of second ejection pins (2-15) are arranged in the female die (2-6); the second lower die plate (2-2) is provided with a second material pressing plate (2-7), a plurality of second equal-height blocks (2-14) are embedded in the second material pressing plate (2-7), the second equal-height blocks (2-14) are distributed around the outline of the second male die (2-10), the equal-height blocks (2-14) are higher than the second material pressing plate (2-7), when the second upper die plate (2-1) and the second lower die plate (2-2) are assembled, the bottom surface of the second female die (2-6) is attached to the plurality of equal-height blocks (2-14), and the gaps between the second female die (2-6) and the second material pressing plate (2-7) are identical; the second positioning blocks (2-13) are distributed on the periphery of the outline of the second male die (2-10), the second positioning blocks (2-13) are respectively abutted against and tangentially arranged on the outline edge of the blanked plate, and the distance between the second positioning blocks (2-13) and the second male die (2-10) is adjusted by the second positioning blocks (2-13) through an adjusting mechanism (2-20).
5. The processing line of claim 4, wherein: the adjusting mechanism (2-20) comprises an adjusting block (2-201) and a fastening bolt (2-202), a plurality of rectangular sliding grooves (2-204) are concavely formed in the second lower die plate (2-2), the sliding grooves (2-204) are formed in the periphery of the outline of the second male die (2-10), the adjusting block (2-201) is slidably arranged in the sliding grooves (2-204), and the adjusting block is adjusted by tightness of the fastening bolt; one end, contacted with a workpiece, of the adjusting block (2-201) is a contact end (2-205), the contact end (2-205) is of a circular arc-shaped structure, and the circular arc-shaped structure is tangent with the edge of the workpiece.
6. A process line according to claim 2, characterized in that: the sizing die comprises a third upper die plate (3-1), a third lower die plate (3-2) and a third locating pin (3-14), wherein a third female die (3-6) is arranged at the bottom of the third upper die plate (3-1), a third male die (3-10) is arranged above the third lower die plate (3-2), the third upper die plate (3-1) opens and closes relative to the third lower die plate (3-2), and the closing height is limited through a third limiting column (3-11); the third male die (3-10) and the third female die (3-6) are respectively attached to the inner contour and the outer contour of the workpiece after being molded by the molding die; a plurality of third ejection pins (3-15) are arranged in the third female die (3-6), a third pressing plate (3-7) is arranged on the periphery of the outline of the third male die (3-10), a plurality of third positioning pins (3-14) are arranged on the third pressing plate (3-7), the plurality of third positioning pins (3-14) are arranged on the outer side of the third male die (3-10), and the third positioning pins (3-14) are abutted against the edge of a workpiece formed by a forming die.
7. A process line according to claim 2, characterized in that: the small end port cutting die comprises a fourth upper die holder and a fourth lower die holder, the fourth upper die holder is used for opening and closing the die up and down relative to the fourth lower die holder through a guide assembly, and the fourth upper die holder and the fourth lower die holder limit the die closing height through a limit column;
the fourth upper die holder comprises a fourth upper die plate (4-8), a fourth upper cutter (4-12) and a fourth pressing plate (4-11), the fourth upper cutter (4-12) is arranged on the fourth upper die plate (4-8), the fourth pressing plate (4-11) is arranged on the periphery of the fourth upper cutter (4-12), the fourth pressing plate (4-11) is arranged on the fourth upper die plate (4-8) through a fourth unloading screw (4-17), the fourth pressing plate (4-11) moves up and down relative to the fourth upper cutter (4-12) through a fourth reset spring (4-18), the fourth pressing plate (4-11) is arranged in a guiding mode through a fourth guide block (5-15), and the bottom of the fourth pressing plate (4-11) is provided with a concave structure, and the contour profile of the concave structure is matched with the outer profile of the two half shells;
the fourth die holder comprises a fourth die plate (4-3), a first positioning block A (4-5) and a first positioning block B (4-6), wherein the first positioning block A (4-5) is arranged at a distance from the first positioning block B (4-6), a cutter concave cavity (4-16) is formed between the first positioning block A (4-5) and the first positioning block B (4-6), when the fourth upper cutter (4-12) is used for cutting down, gaps are reserved between two side edges of the fourth upper cutter (4-12) and the first positioning block A (4-5) and the first positioning block B (4-6), and the first positioning block A (4-5) and the first positioning block B (4-6) are both provided with positioning male die profiles which are matched with the inner side profiles of the half-shell connecting piece.
8. A process line according to claim 2, characterized in that: the trimming die comprises a seventh upper die holder and a seventh lower die holder, the seventh upper die holder is used for opening and closing the die up and down relative to the seventh lower die holder through a guide assembly, and the seventh upper die holder and the seventh lower die holder limit the die closing height through a limit column;
the seventh upper die holder comprises a seventh upper die plate (16), a cutter B (27) and a pressing plate B (22), wherein the cutter B (27) is arranged at the bottom of the seventh upper die plate (16), a knife edge insert B (12) is arranged on the cutter B, the pressing plate B (22) is arranged on the outer side of the cutter B (27), the pressing plate B (22) is arranged on the seventh upper die plate (16) through a discharging screw, the pressing plate B (22) can move up and down relative to the cutter B through a reset spring, the bottom of the pressing plate B (22) comprises a concave molded surface which is matched with the upper surface profile of the half-shell integrated part, and the cutter B (27) is positioned right above the middle integrated area of the half-shell integrated part, and is cut and separated into two independent half-shell parts through the cutter B (27);
the seventh lower die holder comprises a seventh lower die plate (3) and a second positioning block B (11), the second positioning block B (11) is arranged on the seventh lower die plate (3), the second positioning block B (11) comprises a positioning male die molded surface, and the positioning male die molded surface is matched with the inner molded surface of the half-shell connecting piece;
the automatic feeding device is characterized by further comprising a cutter A (21), a pressing plate A (19) and a second positioning block A (6), wherein the cutter A (21) is arranged on a seventh upper die plate (16), a knife edge insert A (7) is arranged on the cutter A (21), the pressing plate A (19) is arranged on the outer side of the cutter A (21), the pressing plate A (19) is arranged on the seventh upper die plate (16) through a discharging screw, the pressing plate A (19) can move up and down relative to the cutter A through a reset spring, and the bottom of the pressing plate A (19) comprises a concave molded surface which is matched with the upper surface profile of the half-shell integrated piece; the cutters A (21) are arranged at intervals of cutters B (27), and the cutters A and B respectively carry out molding of the large end port profile on the two half shell pieces; the second positioning block A (6) is arranged on the seventh lower die plate (3), the second positioning block A (6) comprises a positioning male die molded surface, and the positioning male die molded surface is matched with the inner molded surface of the half-shell connecting piece;
the cutter A (21) is fixed at the bottom of the seventh upper template through a cutter fixing plate (20), a fixing block (9) is arranged on a seventh lower template opposite to the cutter fixing plate, a knife edge insert (8) is arranged on the fixing block (9), and the knife edge insert (8) and the cutter A are correspondingly arranged.
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| CN201711348395.4A CN108067542B (en) | 2017-12-15 | 2017-12-15 | Machining method and machining production line for automobile air outlet end cone shell |
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| CN201711348395.4A CN108067542B (en) | 2017-12-15 | 2017-12-15 | Machining method and machining production line for automobile air outlet end cone shell |
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| CN108296347A (en) * | 2017-12-15 | 2018-07-20 | 无锡曙光模具有限公司 | A kind of automotive air intake end cone shell and its processing method |
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| CN109396246A (en) * | 2018-12-12 | 2019-03-01 | 无锡曙光模具有限公司 | A kind of side-cutting die of automobile parts half-shell |
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| CN112705627B (en) * | 2020-12-11 | 2023-02-24 | 无锡曙光模具有限公司 | Forming die of automobile end cone shell and machining process thereof |
| CN113458252A (en) * | 2021-07-05 | 2021-10-01 | 武汉日晗精密机械有限公司 | Forming process of stainless steel exhaust half-shell stamping part and edge upsetting die |
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