CN114393094A - Machining die and machining method for lower shell of automobile - Google Patents
Machining die and machining method for lower shell of automobile Download PDFInfo
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- CN114393094A CN114393094A CN202111554170.0A CN202111554170A CN114393094A CN 114393094 A CN114393094 A CN 114393094A CN 202111554170 A CN202111554170 A CN 202111554170A CN 114393094 A CN114393094 A CN 114393094A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/088—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a processing die for an automobile lower shell, which comprises a material sheet to be processed; placing a single material sheet into a forming and trimming die for primary forming processing to obtain a shell-shaped material sheet, and cutting off waste materials at the inner edges of two ends of the material sheet to form a large round opening and a small round opening; then, the inner edges of the large round opening and the small round opening are flanged through a flanging and trimming die to form a small round flange and a large round flange, and waste materials on the edges of the two sides of the material sheet are cut off at the same time; then, shaping processing is carried out on two sides of the material sheet through a side-to-side cutting die, and redundant waste materials at the shaping part are cut off; then shaping the side wall of the material sheet at the periphery of the large round opening flanging, and finally cutting off the side wall of the large round opening flanging by using a large opening cutting die to enable the side wall to be flat; and finally, detecting the size and the shape of the processed lower shell. The invention provides a processing die and a processing method for an automobile lower shell, which can effectively process a material sheet into the automobile lower shell meeting the requirements.
Description
Technical Field
The invention relates to the field of processing dies for automobile lower shells.
Background
The processing of parts by using processing dies is common, and is particularly used in the processing production of the identification parts of the shell and the cover, wherein when the automobile parts are produced, the dies are more used for processing and producing the relevant parts of the automobile, and when the automobile parts are produced, multiple processes of processing of the parts by using multiple processing dies are usually required so as to produce the parts meeting the requirements; generally, in the production process of automobile parts, a forming die, a flanging and trimming die and a shaping die are needed to be used for correspondingly producing and processing parts.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the processing die and the processing method for the lower shell of the automobile, which can effectively process the material sheet into the lower shell of the automobile meeting the requirements.
The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows:
the processing die for the lower shell of the automobile comprises a material sheet to be processed; placing a single material sheet into a forming and trimming die for primary forming processing to obtain a shell-shaped material sheet, and cutting off waste materials at the inner edges of two ends of the material sheet to form a large round opening and a small round opening; then, the inner edges of the large round opening and the small round opening are flanged through a flanging and trimming die to form a small round flange and a large round flange, and waste materials on the edges of the two sides of the material sheet are cut off at the same time; then, shaping processing is carried out on two sides of the material sheet through a side-to-side cutting die, and redundant waste materials at the shaping part are cut off; then shaping the side wall of the material sheet at the periphery of the large round opening flanging, and finally cutting off the side wall of the large round opening flanging by using a large opening cutting die to enable the side wall to be flat; and finally, detecting the size and the shape of the processed lower shell.
Further, the side trimming and side cutting die comprises a side trimming die for trimming two sides of the material sheet; the side finishing die comprises an upper pressing piece for pressing the material sheet and a lower limiting piece for limiting the displacement of the material sheet; the lower limiting piece is correspondingly and tightly abutted against the material sheet upwards and embedded into the upper material pressing piece; lateral shaping pieces are symmetrically arranged on two sides of the material sheet between the upper material pressing piece and the lower limiting piece; the shaping ends of the lateral shaping pieces reciprocate to shape the two sides of the material sheet.
Further, the lower limiting member comprises a lower bottom plate; a plurality of lower mold feet are arranged on the lower bottom plate through hydraulic cylinders; a lower template is arranged at one end of the lower die leg, which is far away from the lower bottom plate; a lower fixing plate is arranged on the lower template through a rectangular spring; the middle part of the lower fixing plate is provided with a positioning block through a discharging screw; the positioning block is provided with a first insert, a second insert and a third insert which are distributed in a single-side arrangement manner to form a single-side limiting part; the single-side limiting pieces are symmetrically arranged on two sides of the positioning block, and the single-side limiting pieces are correspondingly embedded in the bottom of the material sheet; the material pressing end of the upper material pressing piece is correspondingly matched and pressed on the surface of the material sheet.
Further, the upper pressing piece comprises an upper bottom plate; an upper die leg is arranged on the upper bottom plate through a hydraulic cylinder; an upper template is arranged at one end of the upper template leg, which is far away from the upper bottom plate; an upper base plate is arranged at the bottom of the upper template; an upper fixing plate is arranged at the bottom of the upper base plate; the middle part of the bottom of the upper fixed plate is provided with a side material leveling and pressing plate through a rectangular spring, and the side material leveling and pressing plate is embedded in the middle part of the upper fixed plate; the bottom of the side material pressing plate is suitable for the surface of the middle part of the material sheet, and the side material pressing plate is correspondingly pressed on the material sheet and is limited on the material sheet by matching with the single-side limiting part.
Further, the lateral shaping member comprises a stop; the bottom of the upper fixed block is provided with a stop block through a discharge screw; the middle part of the stop block is provided with a threaded hole; a bolt is arranged in the threaded hole; an adjusting spring is sleeved on one end of the bolt, which is far away from the material sheet, in a ring manner; adjusting the bolt to enter and exit the threaded hole through the adjusting spring; a sliding block is fixedly arranged at one penetrating end of the bolt; one end of the sliding block, which faces the stop block, is wedge-shaped; the inserting blocks are arranged on the two sides of the positioning block on the lower fixing plate at intervals; the top of the insert block is wedge-shaped and is matched with the wedge-shaped side wall of the slide block; one end of the sliding block, which is far away from the bolt, is fixedly provided with a forming block; the forming blocks are arranged corresponding to the side walls of the material sheets in a fitting mode; the bottom of the upper fixing plate is provided with a limiting block, and the limiting block is correspondingly limited at the top end of the insertion block; the bottom of the guide block arranged at the bottom of the upper fixing plate is provided with a sliding chute; the top of the sliding block is correspondingly arranged in the sliding groove in a sliding manner; the bolt drives the sliding block to move in the sliding groove, and the sliding block drives the forming block to correspondingly shape the side wall of the material sheet.
Further, the side-cutting die also comprises a side-cutting die; the side cutting die comprises a side cutting female die and a side cutting male die insert; side cutting female dies are arranged at the top of the side cutting male die insert at intervals, and the shaped material sheet is limited between the side cutting female dies and the middle part of the side cutting male die insert; a positively-mounted wedge mechanism is arranged between the side-cutting male die insert and two ends of the side-cutting female die; side cutting heads on the forward-installed wedge mechanism are correspondingly arranged on two sides of the material sheet, and the side cutting heads on the forward-installed wedge mechanism are correspondingly cut on the edges of the two sides of the material sheet.
Further, the side-cutting female die comprises a side-cutting upper die leg; one end of the side-cut upper die leg is arranged on the upper bottom plate, and the other end of the side-cut upper die leg is fixedly provided with a side-cut upper die plate; the side cutting upper template is fixedly provided with a side cutting upper fixing plate through a side cutting upper backing plate; the bottom of the middle part of the side-cut upper fixing plate is provided with a side-cut pressure plate through a rectangular spring; the bottom of the side-cutting pressure plate is suitable for the surface of the material sheet to be attached; and the matching female die at the bottom of the side-cutting pressure plate is matched with the side-cutting male die insert to limit the side-cutting pressure plate to the material sheet.
Further, the side-cutting male die insert comprises a side-cutting lower fixing plate; the side cut fixing plate is arranged on the side cut lower template through a rectangular spring; the side-cutting lower template is arranged on the lower bottom plate through the side-cutting lower die leg; the middle part of the side-cut upper fixing plate is provided with a side-cut positioning block through a discharging screw; a side cutting insert is arranged on the side cutting positioning block; the side cutting insert is correspondingly embedded into the material sheet and is mutually abutted and limited on the material sheet by a matched female die; the side cut upper fixing plate and the side cut lower fixing plate are fixed at two ends through bolts, and the front-mounted wedge mechanism is arranged between the two ends of the side cut upper fixing plate and the two ends of the side cut lower fixing plate; and the symmetrical ends, close to each other, of the positively-arranged wedge mechanisms are provided with punches, the punches move relatively to be close to the side walls of the material sheets, and the positively-arranged wedge mechanisms drive the punches to laterally cut at the edges of the two sides of the material sheets.
Furthermore, guide structures are arranged between the lower template and the upper template and between the side-cutting lower template and the side-cutting upper template; the guide structure comprises a guide sleeve fixing block; the guide sleeve fixing blocks are respectively arranged on the lower template and the side-cutting lower template; a guide sleeve is arranged in the middle of one upward end of the guide sleeve fixing block; and the rolling guide posts on the upper template and the side cutting upper template are respectively and correspondingly embedded in the guide sleeves.
Further, the processing method comprises the following steps: a first processing procedure: the method comprises the following steps of (1) forming and side-cutting, namely putting a material sheet into a forming and side-cutting die, performing primary forming processing on the material sheet through the forming die, forming the primarily formed material sheet into a shell shape, forming a large round opening and a small round opening at two ends of the material sheet, and simultaneously punching salient points in the middle of the material sheet in the protruding direction of the large round opening and the small round opening; then cutting off redundant waste materials at the inner edges of the large round opening and the small round opening through an edge cutting die;
a second processing procedure: the method comprises the following steps of flanging and trimming, namely outwards punching and flanging the inner edges of a large round opening and a small round opening through a flanging die, and then trimming the two sides of a material sheet through a trimming die;
a third processing procedure: side-arranging and side-cutting, namely placing the material sheets subjected to side cutting into a side-arranging die, arranging the edge-cutting positions, limiting the material sheets by matching a lower limiting piece and an upper material pressing piece, and then enabling an insertion block to upwards press a sliding block to move under the action of external force; the sliding block drives the forming block to move to extrude two sides of the material sheet to carry out shaping treatment; then, performing side cutting on the edge after side finishing through a side cutting die so as to flatten the side surface of the material sheet;
a fourth processing procedure: shaping, namely shaping the side wall of the material sheet at the large round opening position through a shaping mold to promote the side edge of the material sheet to form a streamline smooth curve shape;
a fifth working procedure: and cutting a large opening, limiting the material sheet in a large opening cutting die, and cutting the end wall of the large circular opening of the material sheet to enable the end wall of the large circular opening to be flush.
Has the advantages that: the lower shell is shaped and processed through the side-to-side cutting die, so that the requirement on the shape of production is met; including but not limited to the following benefits:
1) when the inserting block moves upwards to resist sliding movement, the adjusting spring is compressed, the sliding block correspondingly drives the forming blocks to be close to and contacted with the two sides of the lower shell, and the two sides of the lower shell can be shaped through extrusion of the forming blocks and matched extrusion of the limiting piece on one side;
2) the side cutting insert on the side cutting positioning block is correspondingly embedded in the material sheet, and the side cutting female die is correspondingly covered on the material sheet, so that the material sheet is limited, the stability of the punch when the material sheet is punched can be ensured, and the material sheet is prevented from moving due to too large punching force of the punch and easily damaged.
Drawings
FIG. 1 is a process diagram;
FIG. 2 is a side sizing die construction diagram;
FIG. 3 is a side trim block diagram;
FIG. 4 is a view of the lower retainer;
FIG. 5 is a view of a single side stop block;
FIG. 6 is a diagram of a guide block;
FIG. 7 is a view of a slider structure;
FIG. 8 is a side cut mold construction view;
FIG. 9 is a side cut positioning block configuration view;
FIG. 10 is a punch construction view;
FIG. 11 is a side cut material board structure view;
FIG. 12 is a guide structure view.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1-12: the processing die for the lower shell of the automobile comprises a material sheet to be processed; placing a single material sheet into a forming and trimming die for primary forming processing to obtain a shell-shaped material sheet, and cutting off waste materials at the inner edges of two ends of the material sheet to form a large round opening and a small round opening; then, the inner edges of the large round opening and the small round opening are flanged through a flanging and trimming die to form a small round flange and a large round flange, and waste materials on the edges of the two sides of the material sheet are cut off at the same time; then, shaping processing is carried out on two sides of the material sheet through a side-to-side cutting die, and redundant waste materials at the shaping part are cut off; then shaping the side wall of the material sheet at the periphery of the large round opening flanging, and finally cutting off the side wall of the large round opening flanging by using a large opening cutting die to enable the side wall to be flat; and finally, detecting the size and the shape of the processed lower shell. The lower shell with the same shape and characteristics can be correspondingly produced in large batch from the primary forming of the material sheet and the subsequent flanging, trimming and shaping, so that the standardized batch production and processing are facilitated, and the production requirement of the required product can be further improved; the rapid production and processing of various products can be correspondingly carried out through the adjustment of the working procedures and the change of the die.
The side shaping and side cutting die comprises a side shaping die 1 for shaping two sides of a material sheet; the side finishing die 1 comprises an upper material pressing piece 2 for pressing a material sheet and a lower limiting piece 3 for limiting the displacement of the material sheet; the lower limiting piece 3 is correspondingly pressed tightly upwards to embed the material sheet into the upper material pressing piece 2; lateral shaping pieces 4 are symmetrically arranged on two sides of the material sheet between the upper pressing piece 2 and the lower limiting piece 3; the shaping ends of the lateral shaping members 4 are shaped on both sides of the material sheet in a reciprocating manner. Go up and press the material piece cooperation down the spacing piece and carry out spacingly to preliminary fashioned lower casing, then the corresponding motion of side direction plastic piece carries out plastic processing to casing both sides down to can produce the product that accords with the unified specification of appearance, conveniently carry out large batch production.
The lower retainer 3 comprises a lower bottom plate 31; a plurality of lower mold feet 311 are arranged on the lower bottom plate 31 through hydraulic cylinders; one end of the lower die leg 311, which is far away from the lower bottom plate 31, is provided with a lower template 32; a lower fixing plate 33 is arranged on the lower template 32 through a rectangular spring; a positioning block 34 is arranged in the middle of the lower fixing plate 33 through a discharging screw; the positioning block 34 is provided with a first insert 341, a second insert 342 and a third insert 343 which are arranged and distributed on one side to form a one-side stopper 344; the plurality of single-side limiting pieces 344 are symmetrically arranged on two sides of the positioning block 34, and the single-side limiting pieces 344 are correspondingly embedded in the bottom of the material sheet; the pressing end of the upper pressing piece 2 is correspondingly matched and pressed on the surface of the material sheet. The lateral shaping piece can have enough resistance to match with the processing of the lateral shaping piece when the lateral shaping piece carries out shaping processing on the two sides of the lower shell; the deformation of the two sides of the lower shell during shaping and machining is avoided, and the damage of the lower shell is avoided.
The upper pressing piece 2 comprises an upper bottom plate 21; an upper mold foot 22 is arranged on the upper bottom plate 21 through a hydraulic cylinder; an upper template 23 is arranged at one end of the upper template foot 22 far away from the upper bottom plate 21; an upper backing plate 24 is arranged at the bottom of the upper template 23; an upper fixing plate 25 is arranged at the bottom of the upper backing plate 24; a side pressing plate 26 is arranged in the middle of the bottom of the upper fixing plate 25 through a rectangular spring, and the side pressing plate 26 is embedded in the middle of the upper fixing plate 25; the bottom of the side material pressing plate 26 is adapted to the middle surface of the material sheet, and the side material pressing plate 26 is correspondingly pressed on the material sheet and is limited on the material sheet by matching with the single-side limiting part 344. The lower shell is embedded and tightly propped against the inside of the lower shell through a single-side limiting piece of the lower limiting piece, and then the top of the lower shell is correspondingly pressed by a side pressing plate so as to limit and stabilize the lower shell; and the surface lateral shaping piece is used for shaping and processing two sides of the lower shell.
The lateral shaping member 4 comprises a stop 41; the bottom of the upper fixing block 25 is provided with a stop block 41 through a discharge screw; a threaded hole 411 is formed in the middle of the stop block 41; a bolt 412 is arranged in the threaded hole 411; an adjusting spring 413 is sleeved on one end of the bolt 412, which is far away from the material sheet; the bolt is adjusted to enter and exit the threaded hole 411 through the adjusting spring 413; a sliding block 43 is fixedly arranged on one end of the bolt 412 which penetrates through the sliding block; one end of the sliding block 43, which faces the stop block 41, is wedge-shaped; the inserting blocks 35 are arranged on the lower fixing plate 33 at intervals on two sides of the positioning block 34; the top of the inserting block 42 is wedge-shaped and is matched with the wedge-shaped side wall of the sliding block 43; one end of the sliding block 43, which is far away from the bolt 412, is fixedly provided with a forming block 44; the forming blocks 44 are arranged correspondingly to the side walls of the material sheets; the bottom of the upper fixing plate 25 is provided with a limiting block 45, and the limiting block 45 is correspondingly limited at the top end of the inserting block 42; a sliding groove 451 is arranged at the bottom of a guide block 452 arranged at the bottom of the upper fixing plate 25; the top of the sliding block 43 is correspondingly arranged in the sliding groove 451 in a sliding manner; the bolt 412 drives the sliding block 43 to move in the sliding groove 451, and the sliding block 43 drives the forming block 44 to shape the material sheet side wall correspondingly. Adjusting spring one end corresponds one end with the bolt and fixes spacingly, and the adjusting spring other end supports tightly in the setting of dog lateral wall, when the inserted block upward movement supported the sliding motion, adjusting spring compressed, and the corresponding drive shaping piece of slider is close to and contacts in casing both sides down, through the extrusion of shaping piece and the cooperation extrusion of unilateral locating part, and then can carry out the plastic to casing both sides down, makes the lower casing that processes out accord with the installation demand.
The side-trimming and side-cutting die also comprises a side-cutting die 5; the side cutting die 5 comprises a side cutting female die 51 and a side cutting male die insert 52; side cutting female dies 51 are arranged at the top of the side cutting male die insert 52 at intervals, and a shaped material sheet is arranged between the middle parts of the side cutting female dies 51 and the side cutting male die insert 52 in a limiting manner; a positively-mounted wedge mechanism 6 is arranged between the side-cutting male die insert 52 and the two ends of the side-cutting female die 51; the side cutting heads on the forward-installed wedge mechanism 6 are correspondingly arranged on two sides of the material sheet, and the side cutting heads on the forward-installed wedge mechanism 6 are correspondingly cut on the edges of the two sides of the material sheet. After the material piece is limited through the side-cutting female die and the side-cutting male die, the punching heads are correspondingly driven by the positively-mounted wedge mechanism to cut the two sides of the material piece, and redundant waste materials on the two sides of the material piece are cut off.
The side-cut female die 51 comprises a side-cut upper die leg 511; one end of the side-cut upper mold leg 511 is arranged on the upper bottom plate 21, and the other end of the side-cut upper mold leg 511 is fixedly provided with a side-cut upper mold plate 512; the side cut upper template 512 is fixedly provided with a side cut upper fixing plate 514 through a side cut upper backing plate 513; the bottom of the middle part of the side-cut upper fixing plate 514 is provided with a side-cut pressure plate 515 through a rectangular spring; the bottom of the side-cutting pressure plate 515 is suitable for the surface of a tablet to be attached; and a matching concave die 516 at the bottom of the side-cutting pressure plate 515 is matched with the side-cutting convex die insert 52 to be limited on the material sheet. The side-cutting pressure plate correspondingly drives the side-cutting female die to move close to the side-cutting male die insert, and the side-cutting male die insert is matched to limit the material sheet, so that the punch is prevented from moving when the material sheet is punched, the material sheet is prevented from being damaged, and the shape and the size of the material sheet are prevented from being influenced.
The side-cutting male die insert 52 comprises a side-cutting lower fixing plate 521; the side cut fixing plate 521 is arranged on the side cut lower template 522 through a rectangular spring; the side-cut lower die plate 522 is arranged on the lower bottom plate 31 through a side-cut molding foot 523; a side cutting positioning block 524 is arranged in the middle of the side cutting upper fixing plate 521 through a discharging screw; a side cutting insert 525 is arranged on the side cutting positioning block 524; the side-cutting insert 525 is correspondingly embedded into the material sheet and is mutually abutted and limited on the material sheet by the matching female die 516; the side cut upper fixing plate 514 and the side cut lower fixing plate 521 are fixed at two ends through bolts, and the front-mounted wedge mechanism 6 is arranged between the two ends; and the symmetrical ends, close to each other, of the positively arranged wedge mechanisms 6 are provided with punches 61, the punches 61 move relatively to be close to the side walls of the material sheets, and the positively arranged wedge mechanisms 6 drive the punches 61 to cut the edges of the two sides of the material sheets. The side cutting insert on the side cutting positioning block is correspondingly embedded in the material sheet, and the side cutting female die is correspondingly covered on the material sheet, so that the material sheet is limited, the stability of the punch when the material sheet is punched can be ensured, and the material sheet is prevented from moving due to too large punching force of the punch and easily damaged.
A guide structure 7 is arranged between the lower template 32 and the upper template 23, and between the side-cut lower template 522 and the side-cut upper template 512; the guide structure 7 comprises a guide sleeve fixing block 71; the guide sleeve fixing blocks 71 are respectively arranged on the lower template 32 and the side-cutting lower template 522; a guide sleeve 711 is arranged in the middle of the upward end of the guide sleeve fixing block 71; the rolling guide posts 72 on the upper template 23 and the side cutting upper template 512 are respectively and correspondingly embedded in the guide sleeves 711. Through setting up the roll guide post, can be convenient for the directional up-and-down motion of mould, guarantee to process at the tablet correct position.
The processing method comprises the following steps: a first processing procedure: the forming and side cutting are carried out, the material sheet is placed into a forming and side cutting die, the material sheet is subjected to primary forming processing through the forming die, the primarily formed material sheet is formed into a shell shape, one-step punch forming is carried out, the processing efficiency is high, a large circular opening and a small circular opening are formed at two ends of the material sheet, and meanwhile, salient points are punched in the middle of the material sheet in the protruding direction of the large circular opening and the small circular opening; then cutting off redundant waste materials at the inner edges of the large round opening and the small round opening through an edge cutting die; the subsequent processing is convenient, the processing procedures are reduced, and the processing production efficiency is further improved.
A second processing procedure: the method comprises the following steps of flanging and trimming, namely outwards punching and flanging the inner edges of a large round opening and a small round opening through a flanging die, and then trimming the two sides of a material sheet through a trimming die; the large round opening and the small round opening after trimming are subjected to flanging processing and are formed in one step, so that the production efficiency is improved;
a third processing procedure: side-arranging and side-cutting, namely placing the trimmed material sheets into a side-arranging die 1, arranging the edge-cutting positions, firstly limiting the material sheets through the matching of a lower limiting piece 3 and an upper material pressing piece 2, and then upwards pressing a sliding block 43 to move by an external force action insertion block 42; the sliding block 43 drives the forming block 44 to move to extrude two sides of the material sheet for shaping; then, the side-cut die 5 is used for side-cutting the side-cut edge so as to flatten the side surface of the material sheet; thereby facilitating the installation on the component which can be more adaptive during the installation;
a fourth processing procedure: shaping, namely shaping the side wall of the material sheet at the large round opening position through a shaping mold to promote the side edge of the material sheet to form a streamline smooth curve shape; the produced parts are ensured to have shapes meeting the requirements, and the installation is more facilitated.
A fifth working procedure: cutting a large opening, limiting the material sheet in a large opening cutting die, and cutting the end wall of the large circular opening of the material sheet to enable the end wall of the large circular opening to be flush; the matching installation of other parts and the large round opening flanging is ensured, and the tightness is increased.
The present invention is not limited to the above preferred embodiments, but rather, several modifications and variations can be made by those skilled in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. A mold processing for casing under car, its characterized in that: comprises a material sheet to be processed; placing a single material sheet into a forming and trimming die for primary forming processing to obtain a shell-shaped material sheet, and cutting off waste materials at the inner edges of two ends of the material sheet to form a large round opening and a small round opening; then, the inner edges of the large round opening and the small round opening are flanged through a flanging and trimming die to form a small round flange and a large round flange, and waste materials on the edges of the two sides of the material sheet are cut off at the same time; then, shaping processing is carried out on two sides of the material sheet through a side-to-side cutting die, and redundant waste materials at the shaping part are cut off; then shaping the side wall of the material sheet at the periphery of the large round opening flanging, and finally cutting off the side wall of the large round opening flanging by using a large opening cutting die to enable the side wall to be flat; and finally, detecting the size and the shape of the processed lower shell.
2. The processing mold for the lower shell of the automobile as set forth in claim 1, wherein: the side shaping and side cutting die comprises a side shaping die (1) for shaping two sides of a material sheet; the side finishing die (1) comprises an upper material pressing piece (2) for pressing a material sheet and a lower limiting piece (3) for limiting the displacement of the material sheet; the lower limiting piece (3) is correspondingly and upwards abutted against the material sheet and embedded into the upper pressing piece (2); lateral shaping pieces (4) are symmetrically arranged on two sides of the material sheet between the upper material pressing piece (2) and the lower limiting piece (3); the shaping ends of the lateral shaping pieces (4) reciprocate and are shaped at two sides of the material sheet.
3. The processing mold for the lower shell of the automobile as set forth in claim 2, wherein: the lower limiting piece (3) comprises a lower bottom plate (31); a plurality of lower mold feet (311) are arranged on the lower bottom plate (31) through hydraulic cylinders; a lower template (32) is arranged at one end of the lower die leg (311) far away from the lower bottom plate (31); a lower fixing plate (33) is arranged on the lower template (32) through a rectangular spring; a positioning block (34) is arranged in the middle of the lower fixing plate (33) through a discharging screw; the positioning block (34) is provided with a first insert (341), a second insert (342) and a third insert (343) which are distributed in a single-side arrangement manner, so that a single-side limiting piece (344) is formed; the single-side limiting pieces (344) are symmetrically arranged on two sides of the positioning block (34), and the single-side limiting pieces (344) are correspondingly embedded in the bottom of the material sheet; the material pressing end of the upper material pressing piece (2) is correspondingly matched and pressed on the surface of the material sheet.
4. The processing mold for the lower shell of the automobile as set forth in claim 3, wherein: the upper material pressing piece (2) comprises an upper bottom plate (21); an upper mold foot (22) is arranged on the upper bottom plate (21) through a hydraulic cylinder; an upper template (23) is arranged at one end of the upper template foot (22) far away from the upper bottom plate (21); an upper backing plate (24) is arranged at the bottom of the upper template (23); an upper fixing plate (25) is arranged at the bottom of the upper backing plate (24); a side material pressing plate (26) is arranged in the middle of the bottom of the upper fixing plate (25) through a rectangular spring, and the side material pressing plate (26) is embedded in the middle of the upper fixing plate (25); the bottom of the side material pressing plate (26) is suitable for the surface arrangement of the middle part of the material sheet, and the side material pressing plate (26) is correspondingly pressed on the material sheet and matched with the single-side limiting piece (344) to be limited on the material sheet.
5. The processing mold for the lower shell of the automobile as set forth in claim 4, wherein: the lateral shaping element (4) comprises a stop (41); the bottom of the upper fixing block (25) is provided with a stop block (41) through a discharge screw; a threaded hole (411) is formed in the middle of the stop block (41); a bolt (412) is arranged in the threaded hole (411); an adjusting spring (413) is sleeved on one end, far away from the material sheet, of the bolt (412); the bolt is adjusted to enter and exit the threaded hole (411) through the adjusting spring (413); a sliding block (43) is fixedly arranged at one end of the bolt (412) in a penetrating way; one end of the sliding block (43) facing the stop block (41) is wedge-shaped; the two sides of the positioning block (34) on the lower fixing plate (33) are provided with inserting blocks (35) at intervals; the top of the inserting block (42) is wedge-shaped and is matched with the wedge-shaped side wall of the sliding block (43); one end of the sliding block (43) far away from the bolt (412) is fixedly provided with a forming block (44); the forming blocks (44) are arranged correspondingly to the side walls of the material sheets; the bottom of the upper fixing plate (25) is provided with a limiting block (45), and the limiting block (45) is correspondingly limited to the top end of the inserting block (42); a sliding groove (451) is formed in the bottom of a guide block (452) arranged at the bottom of the upper fixing plate (25); the top of the sliding block (43) is correspondingly arranged in the sliding groove (451) in a sliding manner; the bolt (412) drives the sliding block (43) to move in the sliding groove (451), and the sliding block (43) drives the forming block (44) to shape the side wall of the material sheet correspondingly.
6. The processing mold for the lower shell of the automobile as recited in claim 5, wherein: the side-trimming and side-cutting die also comprises a side-cutting die (5); the side cutting die (5) comprises a side cutting female die (51) and a side cutting male die insert (52); side cutting female dies (51) are arranged at the top of the side cutting male die insert (52) at intervals, and a shaped material sheet is arranged between the side cutting female dies (51) and the middle part of the side cutting male die insert (52) in a limiting manner; a positively-mounted wedge mechanism (6) is arranged between the side-cutting punch insert (52) and the two ends of the side-cutting female die (51); the side cutting heads on the forward-installed inclined wedge mechanism (6) are correspondingly arranged on two sides of the material sheet, and the side cutting heads on the forward-installed inclined wedge mechanism (6) are correspondingly cut on the edges of the two sides of the material sheet.
7. The processing mold for the lower shell of the automobile as recited in claim 6, wherein: the side-cut female die (51) comprises a side-cut upper die leg (511); one end of the side-cut upper mold leg (511) is arranged on the upper bottom plate (21), and the other end of the side-cut upper mold leg (511) is fixedly provided with a side-cut upper mold plate (512); the side cutting upper template (512) is fixedly provided with a side cutting upper fixing plate (514) through a side cutting upper backing plate (513); the bottom of the middle part of the side-cut upper fixing plate (514) is provided with a side-cut pressure plate (515) through a rectangular spring in a connecting way; the bottom of the side-cutting pressure plate (515) is suitable for the surface of a material sheet to be attached; and a matching female die (516) at the bottom of the side-cutting pressure plate (515) is matched with the side-cutting male die insert (52) and limited on the material sheet.
8. The processing mold for the lower shell of the automobile as recited in claim 7, wherein: the side-cutting male die insert (52) comprises a side-cutting lower fixing plate (521); the side cut lower fixing plate (521) is arranged on the side cut lower template (522) through a rectangular spring; the side-cut lower template (522) is arranged on the lower bottom plate (31) through side-cut mold feet (523); a side cutting positioning block (524) is arranged in the middle of the side cutting upper fixing plate (521) through a discharging screw; a side cutting insert (525) is arranged on the side cutting positioning block (524); the side cutting insert (525) is correspondingly embedded into the material sheet and is mutually abutted and limited on the material sheet by the matching female die (516); the side cut upper fixing plate (514) and the side cut lower fixing plate (521) are fixed at two ends through bolts, and a normally installed wedge mechanism (6) is arranged between the two ends of the side cut upper fixing plate and the side cut lower fixing plate; the symmetrical forward-mounted wedge mechanism (6) is provided with a punch (61) at one end close to each other, the punch (61) moves relatively to be close to the side wall of the material sheet, and the forward-mounted wedge mechanism (6) drives the punch (61) to laterally cut at the edges of two sides of the material sheet.
9. The processing mold for the lower shell of the automobile as recited in claim 8, wherein: a guide structure (7) is arranged between the lower template (32) and the upper template (23) and between the side-cutting lower template (522) and the side-cutting upper template (512); the guide structure (7) comprises a guide sleeve fixing block (71); the guide sleeve fixing blocks (71) are respectively arranged on the lower template (32) and the side-cutting lower template (522); a guide sleeve (711) is arranged in the middle of one upward end of the guide sleeve fixing block (71); the upper template (23) and the rolling guide columns (72) on the side cutting upper template (512) are respectively and correspondingly embedded in the guide sleeves (711).
10. The processing method of the processing mold for the automobile lower shell according to any one of claims 1 to 9, characterized in that the processing method comprises:
a first processing procedure: the method comprises the following steps of (1) forming and side-cutting, namely putting a material sheet into a forming and side-cutting die, performing primary forming processing on the material sheet through the forming die, forming the primarily formed material sheet into a shell shape, forming a large round opening and a small round opening at two ends of the material sheet, and simultaneously punching salient points in the middle of the material sheet in the protruding direction of the large round opening and the small round opening; then cutting off redundant waste materials at the inner edges of the large round opening and the small round opening through an edge cutting die;
a second processing procedure: the method comprises the following steps of flanging and trimming, namely outwards punching and flanging the inner edges of a large round opening and a small round opening through a flanging die, and then trimming the two sides of a material sheet through a trimming die;
a third processing procedure: the material sheets after the side cutting are placed into a side finishing die (1) and the side cutting positions are regulated, the material sheets are limited by the matching of a lower limiting piece (3) and an upper pressing piece (2), and then an inserting block (42) is acted by external force to upwards press a sliding block (43) to move; the sliding block (43) drives the forming block (44) to move to extrude two sides of the material sheet for shaping; then, the side cut die (5) is used for side cutting the edge after side finishing so as to flatten the side surface of the material sheet;
a fourth processing procedure: shaping, namely shaping the side wall of the material sheet at the large round opening position through a shaping mold to promote the side edge of the material sheet to form a streamline smooth curve shape;
a fifth working procedure: and cutting a large opening, limiting the material sheet in a large opening cutting die, and cutting the end wall of the large circular opening of the material sheet to enable the end wall of the large circular opening to be flush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554170.0A CN114393094B (en) | 2021-12-17 | 2021-12-17 | Machining die and machining method for automobile lower shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554170.0A CN114393094B (en) | 2021-12-17 | 2021-12-17 | Machining die and machining method for automobile lower shell |
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| Publication Number | Publication Date |
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| CN114393094A true CN114393094A (en) | 2022-04-26 |
| CN114393094B CN114393094B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111554170.0A Active CN114393094B (en) | 2021-12-17 | 2021-12-17 | Machining die and machining method for automobile lower shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118723617A (en) * | 2024-07-02 | 2024-10-01 | 江苏英创电力科技有限公司 | Automatic train loading machine |
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| DE10151685A1 (en) * | 2001-10-19 | 2003-05-08 | Daimler Chrysler Ag | Method for producing a side wall assembly for a motor vehicle body |
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| CN205056814U (en) * | 2015-09-22 | 2016-03-02 | 无锡曙光模具有限公司 | Cut -out press is cut to side of half shell of admitting air |
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| CN208116548U (en) * | 2018-02-11 | 2018-11-20 | 长春市诚义工装模具有限公司 | A kind of pawl stamping parts production mould |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10151685A1 (en) * | 2001-10-19 | 2003-05-08 | Daimler Chrysler Ag | Method for producing a side wall assembly for a motor vehicle body |
| US20040020261A1 (en) * | 2002-07-31 | 2004-02-05 | Hirotec Corportation | Compound press-forming apparatus and compound press-forming method |
| JP2009262175A (en) * | 2008-04-23 | 2009-11-12 | Honda Motor Co Ltd | Trim die having function of cutting scrap |
| CN102029311A (en) * | 2010-10-21 | 2011-04-27 | 青岛海立达冲压件有限公司 | Processing technique for compressor shell |
| CN203621193U (en) * | 2013-11-20 | 2014-06-04 | 无锡曙光模具有限公司 | Cut-off die for air exhaust taper pipe outer shell of automobile engine exhaust system |
| CN205056814U (en) * | 2015-09-22 | 2016-03-02 | 无锡曙光模具有限公司 | Cut -out press is cut to side of half shell of admitting air |
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| CN118723617A (en) * | 2024-07-02 | 2024-10-01 | 江苏英创电力科技有限公司 | Automatic train loading machine |
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| CN114393094B (en) | 2023-06-16 |
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