CN114733973B - Processing technology and processing die for automobile armrest frame - Google Patents
Processing technology and processing die for automobile armrest frame Download PDFInfo
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- CN114733973B CN114733973B CN202210355561.8A CN202210355561A CN114733973B CN 114733973 B CN114733973 B CN 114733973B CN 202210355561 A CN202210355561 A CN 202210355561A CN 114733973 B CN114733973 B CN 114733973B
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- wall groove
- rolling
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a processing technology and a processing die for an automobile armrest frame, wherein the processing technology comprises the following steps: step one: shaping the cut material sheet into a sheet structure with one end bent, and punching a plurality of grooves on the sheet structure; step two: placing the sheet structure into a flanging die to carry out flanging processing on two sides to form a thin-wall groove body; step three: the side extrusion molding is carried out on the protruding part at one side of the thin-wall groove body through a side forming die, so that the side wall of the thin-wall groove body is flattened; step four: placing the thin-wall groove body with the side being finished into a punching die, and punching the middle parts of the two ends of the thin-wall groove body; step five: and extruding and curling the side position of the thin-wall groove body through the drawing hole rolling die to form a rolling groove. The processing technology and the processing die for the automobile armrest frame can effectively process the material sheet through the processing die to form the side plate of the automobile armrest frame which meets the installation requirement, and are convenient to install.
Description
Technical Field
The invention relates to the field of automobile armrest frames.
Background
The application of the production and processing of the die is wider, wherein the die is used for producing more automobile parts, and parts meeting the requirements can be rapidly processed through the production and processing of the die; the processing efficiency is high on one hand, and on the other hand, most of processed parts are of an integrated structure and high in strength through a mode of die processing; when the side plate of the automobile armrest frame is processed, a die can be adopted for processing, so that the processing efficiency is improved.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the processing technology of the automobile armrest frame and the processing die, which can effectively process the material sheet through the processing die to form the side plate of the automobile armrest frame meeting the installation requirement, and is convenient to install.
The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the invention is as follows:
a processing technology for an automobile armrest frame comprises the following steps:
step one: shaping the cut material sheet, processing the material sheet into a sheet-shaped structure with one end bent through a shaping die, and punching a plurality of grooves on the sheet-shaped structure;
step two: placing the sheet structure into a flanging die to carry out flanging processing on two sides, so that two sides of the sheet structure are promoted to be turned over towards one recessed side of the groove, and a thin-wall groove body is formed;
step three: the side extrusion molding is carried out on the protruding part at one side of the thin-wall groove body through a side forming die, so that the side wall of the thin-wall groove body is flattened;
step four: placing the thin-wall groove body with the side being finished into a punching die, and punching the middle parts of the two ends of the thin-wall groove body through the punching die;
step five: extruding and curling the side position of the thin-wall groove body through a drawing hole rolling die to form a rolling groove; the round rolling groove is fixedly arranged at a single side position at one end of the thin-wall groove body and is arranged in a groove-shaped integrated structure.
Further, the side forming die comprises a single-side shaping structure and a matching die; the thin-wall groove body is placed in a matching die, the thin-wall groove body is limited through the matching die, and the single-side shaping structure performs extrusion shaping on one side corresponding to the thin-wall groove body;
the matched die comprises a matched female die and a matched pressing plate; the matched female die is arranged on the matched lower die plate through a matched lower base plate, and the matched lower base plate is arranged on the matched lower die plate through a discharging screw; the matched female die is correspondingly provided with a thin-wall groove body; the matched material pressing plate is arranged on the matched upper fixing plate through a material discharging screw, a material discharging guide sleeve is arranged at the bottom of the matched upper fixing plate, and the material discharging screw on the matched material pressing plate is correspondingly sleeved in the material discharging guide sleeve; the upper matched fixing plate is arranged at the bottom of the upper matched template through a nitrogen spring; the bottom of the matched pressing plate is correspondingly pressed on the surface of the thin-wall groove body on the matched female die.
Further, the matching die further comprises a stop block and a limiting block; the stop block is arranged on the matched lower base plate and is spliced with the matched female die; the top of the stop block is correspondingly matched with a pressing plate to be extruded and limited on one side of the thin-wall groove body; the limiting block and the stop block are oppositely spliced and arranged on the other side of the matched female die; a unilateral shaping structure is arranged on one side, away from the matched female die, of the limiting block; the unilateral shaping end of the shaping structure correspondingly abuts against the side wall of the thin-wall groove body, and the unilateral shaping end of the shaping structure slides along the surface of the limiting block.
Further, the single-side shaping structure comprises a wedge mechanism and a shaping block; the inclined wedge mechanism is arranged between the matched upper template and the matched lower template, and the driving end of the inclined wedge mechanism is correspondingly provided with a shaping block; one end of the shaping block, which is far away from the inclined wedge mechanism, correspondingly abuts against the side wall of the thin-wall groove body; one end of the shaping block, which corresponds to the thin-wall groove body, is stepped; the shaping block is suitable for the arrangement of the curved side wall of the thin-wall groove body.
Further, the punching die comprises a positioning female die and a pressing plate; one end of the top of the positioning female die is gradually reduced, one end of the pressing plate is gradually increased, and the top of the positioning female die and the bottom of the pressing plate are in a complementary relationship; the thin-wall groove body covers the positioning female die, and the pressing plate is correspondingly pressed on the surface of the thin-wall groove body; the punch penetrating through the pressing plate moves and punches in two ends of the thin-wall groove body, and one punching end of the punch is correspondingly embedded into the positioning female die.
Further, the positioning female die is arranged on the punching bottom plate through a discharging screw, and the punching bottom plate is fixedly arranged on a lower die plate of the punching die through the discharging screw; the pressing plate is arranged at the bottom of the punching fixing plate through a discharging screw; the punching fixing plate is arranged at the bottom of the upper die plate of the punching die through a rectangular spring; one end of the punch is arranged on the punching fixed plate, and the other end of the punch correspondingly extends to penetrate through the pressing plate and is embedded into the corresponding hole of the positioning female die.
Further, the plurality of punches are correspondingly arranged at two end positions of the thin-wall groove body respectively, the diameter of the punch at one end position of the thin-wall groove body is larger than that of the punch at the other end position of the thin-wall groove body, and the number of the punches with large diameters is larger than that of the punches with small diameters; the punches with large diameters are staggered;
a plurality of positioning guide pins are arranged between the positioning female die and the pressing plate at intervals; the positioning guide pins are arranged around the periphery of the thin-wall groove body; and a guide part is arranged between the upper die plate and the lower die plate of the punching die.
Further, the drawing hole rolling die comprises a positioning module and a rolling punch structure; the positioning module comprises a rolling lower die and a matched insert; a thin-wall groove body is adaptively embedded between the rolling lower die and the matching insert, and a notch of the thin-wall groove body is arranged upwards; the rolling lower die and the insert on the matching insert are correspondingly adapted to be filled in the concave position of the thin-wall groove body; a guide notch is formed in one side of the matched insert; the guide notch is correspondingly provided with a rolling punch structure; the rolling punch structure extrudes the protruding position of the side wall of the thin-wall groove body to form a rolling groove.
Further, the rolling lower die is arranged on the rolling lower fixing plate through a discharging screw, and the rolling lower fixing plate is arranged on a lower die plate of the drawing hole rolling die through the discharging screw; a plurality of springs on the lower template of the drawing hole rolling die are fixedly provided with positioning ejector pins; one end, far away from the spring, of the positioning ejector pin penetrates through the rolling lower fixing plate and the rolling lower die to be abutted against the bottom of the thin-wall groove body; the positioning jacking pins are arranged at intervals along the length direction of the thin-wall groove body; the rolling lower die and the matching insert are provided with an ejector rod in a penetrating way; the ejector rod passes through the through hole on the thin-wall groove body.
Further, the rolling punch structure comprises a rolling pushing block; the rolling pushing block is correspondingly spliced with the matched insert and arranged at the position of the guide notch; the two ends of the matching insert are respectively provided with a pressing block; the bottoms of the pressing blocks are correspondingly pressed at the two ends of the thin-wall groove body; the width of one end of the rolling pushing block is gradually reduced, and one end of the rolling pushing block, which is reduced, is adapted to the gradually increased end of the thin-wall groove body; the bottom of the rolling pushing block is in a concave-convex curved surface shape, and the bottom of the rolling pushing block is correspondingly extruded on one side edge of the thin-wall groove body.
The beneficial effects are that: the processing die disclosed by the invention processes the material sheet according to a specific process, so that the material sheet can be rapidly processed to form a curved side plate meeting the requirements; including but not limited to the following benefits:
1) The thin-wall groove body is stabilized by matching with the die, then a side wall of the thin-wall groove body is correspondingly extruded and shaped by the unilateral shaping structure, so that the side wall of the thin-wall groove body is shaped and flattened, and the curved side plate is conveniently and well matched with the handrail frame;
2) The positioning module is used for positioning and stabilizing the thin-wall groove body, the rolling punch structure is used for rolling a protruding portion on one side of the thin-wall groove body, and the rolling processing is finished at the corresponding position of the thin-wall groove body, so that the strength of one bent end of the bent side plate is increased through the rolling portion.
Drawings
FIG. 1 is a process step diagram;
FIG. 2 is a side molding die block diagram;
FIG. 3 is a diagram of a matched pressing plate;
FIG. 4 is a single-sided shaping block diagram;
FIG. 5 is a diagram of the mating female die;
FIG. 6 is a block diagram of a punching die;
FIG. 7 is a block diagram of a press plate;
FIG. 8 is a diagram of the positioning female die;
FIG. 9 is a drawing of a drawing hole round die structure;
FIG. 10 is a block diagram of a mating insert;
fig. 11 is a diagram of a shaping block structure.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-11: a processing technology for an automobile armrest frame comprises the following steps:
step one: forming the cut material sheet, processing the material sheet into a sheet-shaped structure with one bent end through a forming die, and punching a plurality of grooves 11 on the sheet-shaped structure;
step two: placing the sheet structure into a flanging die to carry out flanging processing on two sides, so that two sides of the sheet structure are promoted to be folded towards one concave side of the groove 11, and a thin-wall groove body 12 is formed;
step three: the side extrusion molding is carried out on the protruding part of one side of the thin-wall groove body 12 through the side forming die 2, so that the side wall of the thin-wall groove body 12 is flattened;
step four: the thin-wall groove body 12 with the side being finished is put into a punching die 3, and the middle parts of the two ends of the thin-wall groove body 12 are punched through the punching die 3;
step five: extruding and curling the side position of the thin-wall groove body 12 through the drawing hole curling die 4 to form a curling groove 13; the round rolling groove 13 is fixedly arranged at a single side position at one end of the thin-wall groove body 12 and is of a groove-shaped integrated structure. The material sheet is processed through a specific processing technology, so that the material sheet forms the curved side plate with one end bent, and the curved side plate formed by the processing is of an integrated structure, so that the strength is higher than that of a general welded side plate, and the installation is more convenient.
The side forming die 2 comprises a single-side shaping structure 21 and a matching die 22; the thin-wall groove body 12 is placed in a matching die 22, the thin-wall groove body 12 is limited by the matching die 22, and the single-side shaping structure 21 performs extrusion shaping on the corresponding side of the thin-wall groove body 12; the matching die 22 comprises a matching female die 221 and a matching pressing plate 23; the matched female die 221 is arranged on the matched lower die plate 223 through a matched lower base plate 222, and the matched lower base plate 222 is arranged on the matched lower die plate 223 through a discharging screw; the matching female die 221 is correspondingly provided with a thin-wall groove body 12; the matched pressing plate 23 is arranged on the matched upper fixing plate 231 through a discharging screw, a discharging guide sleeve 232 is arranged at the bottom of the matched upper fixing plate 231, and the discharging screw on the matched pressing plate 23 is correspondingly sleeved in the discharging guide sleeve 232; the upper matching fixed plate 231 is arranged at the bottom of the upper matching template 234 through a nitrogen spring 233; the bottom of the matched pressing plate 23 is correspondingly pressed on the surface of the thin-wall groove body 12 on the matched female die 221. The cooperation mould stabilizes the thin wall cell body, then the corresponding side wall to the thin wall cell body of unilateral plastic structure carries out extrusion plastic, makes the lateral wall of thin wall cell body by the plastic level and smooth, and the better cooperation of curved side board of being convenient for is installed on the handrail frame.
The matching die 22 further comprises a stop block 24 and a limiting block 25; the stop block 24 is arranged on the matched lower base plate 222, and the stop block 24 is spliced with the matched female die 221; the top of the stop block 24 is correspondingly matched with the pressing plate 23 to be extruded and limited on one side of the thin-wall groove body 12; the limiting block 25 and the stop block 24 are oppositely spliced and arranged on the other side of the matched female die 221; the limiting block 25 is provided with a single-side shaping structure 21 at one side far away from the matched female die 221; the shaping end of the single-side shaping structure 21 correspondingly abuts against the side wall of the thin-wall groove body 12, and the shaping end of the single-side shaping structure 21 slides along the surface of the limiting block 25. The corresponding setting of thin wall cell body is on the cooperation die, then cooperates the corresponding pressure of flitch on the thin wall cell body, and dog and stopper extrude the restriction from both sides to thin wall cell body both sides respectively simultaneously, avoid moving the thin wall cell body in the plastic in-process, cause the mistake of plastic easily, influence the installation of bent side board after processing.
The single-side shaping structure 21 comprises a wedge mechanism 211 and a shaping block 212; the cam mechanism 211 is arranged between the upper matching template 234 and the lower matching template 223, and a shaping block 212 is correspondingly arranged on the driving end of the cam mechanism 211; one end of the shaping block 212, which is far away from the inclined wedge mechanism 211, correspondingly abuts against the side wall of the thin-wall groove body 12; one end of the shaping block 212 corresponding to the thin-wall groove body 12 is stepped; the shaping block 212 is adapted to the curved side wall arrangement of the thin-walled tank body 12; then the driving end of the inclined wedge mechanism drives the shaping block to move to extrude and shape the side wall of the thin-wall groove body; the side wall of the thin-wall groove body after shaping is flat, so that the thin-wall groove body is convenient to be matched with other parts for installation.
The punching die 3 comprises a positioning female die 31 and a pressing plate 32; one end of the top of the positioning female die 31 gradually decreases, one end of the pressing plate 32 gradually increases, and the top of the positioning female die 31 and the bottom of the pressing plate 32 are in a complementary relationship; the thin-wall groove body 12 covers the positioning female die 31, and the pressing plate 32 is correspondingly pressed on the surface of the thin-wall groove body; the punch 33 penetrating through the pressing plate 32 moves and presses the two ends of the thin-wall groove body 12, and one pressing end of the punch 33 is correspondingly embedded into the positioning female die 31. The positioning female die is in complementary fit with the pressing plate, and the thin-wall groove body is correspondingly arranged between the positioning female die and the pressing plate in a spaced mode, so that the thin-wall groove body can be limited in a suitable mode, and punching processing can be facilitated.
The positioning female die 31 is arranged on the punching bottom plate 33 through a discharging screw, and the punching bottom plate 33 is fixedly arranged on a lower die plate of the punching die through the discharging screw; the pressing plate 32 is arranged at the bottom of the punching fixing plate 34 through a discharging screw; the punching fixing plate 34 is arranged at the bottom of the upper die plate of the punching die 3 through a rectangular spring 35; one end of the punch 33 is arranged on the punching fixing plate 34, and the other end of the punch 33 extends through the pressing plate 32 to be embedded into the corresponding hole 311 of the positioning female die 31. The pressing plate is firmly pressed in the thin-wall groove body, the punch penetrates through the pressing plate, so that the pressing plate plays a guiding role on the punch, the punch is guaranteed to punch at the corresponding position of the thin-wall groove body, and the punch is convenient to install in a matched mode through the machined through hole and other parts.
The plurality of punches 33 are respectively and correspondingly arranged at two end positions of the thin-wall groove body 12, the diameter of the punch 33 at one end position of the thin-wall groove body 12 is larger than that at the other end position of the thin-wall groove body 12, and the number of the punches 33 with large diameter is larger than that of the punches 33 with small diameter; the punches 33 with large diameters are staggered; a plurality of positioning guide pins 36 are arranged between the positioning female die 31 and the pressing plate 32 at intervals; a plurality of positioning guide pins 36 are arranged around the periphery of the thin-wall groove body 12; a guide member 37 is provided between the upper die plate and the lower die plate of the punching die 3. The guiding component assists in positioning the female die and pressing the material plate for guiding, and the corresponding pressing material plate can guide the punch, so that the position of punching is ensured to be correct, and other parts can be matched and mounted on the machined curved side plate.
The drawing hole rolling die 4 comprises a positioning module 41 and a rolling punch structure 42; the positioning module 41 comprises a lower round die 411 and a matching insert 43; a thin-wall groove body 12 is adaptively embedded between the rolling lower die 411 and the matching insert 43, and the notch of the thin-wall groove body 12 is upwards arranged; the lower round die 411 and the insert 431 on the matching insert 43 are correspondingly adapted to be filled in the concave position of the thin-wall groove body 12; a guiding notch 432 is formed in one side of the matching insert 43; the guide notch 432 is correspondingly provided with a rolling punch structure 42; the rolling punch structure 42 extrudes the protruding position of the side wall of the thin-wall groove body 12 to form the rolling groove 13. The positioning module is used for positioning and stabilizing the thin-wall groove body, the rolling punch structure is used for rolling a protruding portion on one side of the thin-wall groove body, and the rolling processing is finished at the corresponding position of the thin-wall groove body, so that the strength of one bent end of the bent side plate is increased through the rolling portion.
The rolling lower die 411 is arranged on a rolling lower fixing plate through a discharging screw, and the rolling lower fixing plate is arranged on a lower die plate of the drawing hole rolling die 4 through a discharging screw; a plurality of springs 44 on the lower template of the drawing hole rolling die 4 are fixedly provided with positioning ejector pins 441; one end of the positioning top pin 441, which is far away from the spring 44, penetrates through the lower rolling fixing plate and the lower rolling die 411 to be abutted against the bottom of the thin-wall groove body 12; the positioning jacking pins 441 are arranged at intervals along the length direction of the thin-wall groove body 12; the lower round die 411 and the matching insert 43 are provided with a push rod 45 in a penetrating way; the ejector rod 45 passes through the through hole on the thin-wall groove body 12. The thin-wall groove body is matched with the lower rolling die, the locating top pin on the locating top pin spring is abutted against the bottom of the thin-wall groove body, the thin-wall groove body is limited through the locating top pins, further the movement of the thin-wall groove body is avoided, and the rolling processing is convenient.
The rolling punch structure 42 comprises a rolling pushing block 421; the rolling pushing block 421 is correspondingly spliced with the matching insert 43 and arranged at the position of the guide notch 432; the two ends of the matching insert 43 are respectively provided with a pressing block 433; the bottoms of the pressing blocks 43 are correspondingly pressed at the two ends of the thin-wall groove body 12; the width of one end of the rolling pushing block 421 gradually decreases, and the decreasing end of the rolling pushing block 421 is adapted to the gradually increasing end of the thin-wall groove 12; the bottom of the rolling pushing block 421 is concave-convex curved, and the bottom of the rolling pushing block 421 is correspondingly extruded to the edge of one side of the thin-wall groove 12. The thin-wall groove body is pressed and limited by matching with the insert and the pressing block, so that the thin-wall groove body is prevented from moving easily, and then the rolling pushing block is used for rolling the thin-wall groove body on one side.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it is apparent to those skilled in the art that modifications and variations can be made without departing from the above-described principle of the present invention, and these modifications and variations are also regarded as the scope of the invention.
Claims (2)
1. The processing technology for the automobile armrest frame is characterized by comprising the following steps of:
step one: shaping the cut material sheet, processing the material sheet into a sheet-shaped structure with one bent end through a shaping die, and punching a plurality of grooves (11) on the sheet-shaped structure;
step two: the sheet structure is placed into a flanging die to carry out flanging processing on two sides, so that two sides of the sheet structure are promoted to be folded towards one concave side of the groove (11) to form a thin-wall groove body (12);
step three: the side extrusion forming is carried out on the protruding part of one side of the thin-wall groove body (12) through the side forming die (2), so that the side wall of the thin-wall groove body (12) is flattened;
the side forming die (2) comprises a single-side shaping structure (21) and a matching die (22); the thin-wall groove body (12) is placed in a matching die (22), the thin-wall groove body (12) is limited through the matching die (22), and the single-side shaping structure (21) performs extrusion shaping on one side corresponding to the thin-wall groove body (12);
the matching die (22) comprises a matching female die (221) and a matching pressing plate (23); the matched female die (221) is arranged on the matched lower die plate (223) through a matched lower base plate (222), and the matched lower base plate (222) is arranged on the matched lower die plate (223) through a discharging screw; the matching female die (221) is correspondingly provided with a thin-wall groove body (12); the matched pressing plate (23) is arranged on the matched upper fixing plate (231) through a discharging screw, a discharging guide sleeve (232) is arranged at the bottom of the matched upper fixing plate (231), and the discharging screw on the matched pressing plate (23) is correspondingly sleeved in the discharging guide sleeve (232); the upper matched fixing plate (231) is arranged at the bottom of the upper matched template (234) through a nitrogen spring (233); the bottom of the matched pressing plate (23) is correspondingly pressed on the surface of the thin-wall groove body (12) on the matched female die (221);
the matching die (22) further comprises a stop block (24) and a limiting block (25); the stop block (24) is arranged on the matched lower base plate (222), and the stop block (24) is spliced with the matched female die (221); the top of the stop block (24) is correspondingly matched with a pressing plate (23) to be extruded and limited on one side of the thin-wall groove body (12); the limiting block (25) and the stop block (24) are oppositely spliced and arranged on the other side of the matched female die (221); a unilateral shaping structure (21) is arranged on one side, away from the matched female die (221), of the limiting block (25); the shaping end of the unilateral shaping structure (21) correspondingly abuts against the side wall of the thin-wall groove body (12), and the shaping end of the unilateral shaping structure (21) slides along the surface of the limiting block (25);
the single-side shaping structure (21) comprises a wedge mechanism (211) and a shaping block (212); the inclined wedge mechanism (211) is arranged between the matched upper template (234) and the matched lower template (223), and a shaping block (212) is correspondingly arranged at the driving end of the inclined wedge mechanism (211); one end of the shaping block (212) far away from the inclined wedge mechanism (211) correspondingly abuts against the side wall of the thin-wall groove body (12); one end of the shaping block (212) corresponding to the thin-wall groove body (12) is stepped; the shaping block (212) is suitable for being arranged on the curved side wall of the thin-wall groove body (12);
the thin-wall groove body (12) is correspondingly arranged on the matched female die (221), then the matched pressing plate (23) is correspondingly pressed on the thin-wall groove body (12), meanwhile, the stop blocks (24) and the limiting blocks (25) respectively squeeze and limit the two sides of the thin-wall groove body (12) from the two sides, the thin-wall groove body (12) is prevented from moving in the shaping process, and then the driving end of the inclined wedge mechanism (211) drives the shaping block (212) to move to squeeze and shape the side wall of the thin-wall groove body (12); the side wall of the shaped thin-wall groove body (12) is flat;
step four: the thin-wall groove body (12) with the side being finished is put into a punching die (3), and the middle parts of the two ends of the thin-wall groove body (12) are punched through the punching die (3);
the punching die (3) comprises a positioning female die (31) and a pressing plate (32); one end of the top of the positioning female die (31) gradually decreases, one end of the pressing plate (32) gradually increases, and the top of the positioning female die (31) and the bottom of the pressing plate (32) are in a complementary relationship; the thin-wall groove body (12) is covered on the positioning female die (31), and the pressing plate (32) is correspondingly pressed on the surface of the thin-wall groove body; a punch (33) penetrating through the pressing plate (32) moves to punch the two ends of the thin-wall groove body (12), and one punching end of the punch (33) is correspondingly embedded into the positioning female die (31);
the positioning female die (31) is arranged on the punching bottom plate (331) through a discharging screw, and the punching bottom plate (331) is fixedly arranged on a lower die plate of the punching die through the discharging screw; the pressing plate (32) is arranged at the bottom of the punching fixing plate (34) through a discharging screw; the punching fixing plate (34) is arranged at the bottom of the upper die plate of the punching die (3) through a rectangular spring (35); one end of the punch (33) is arranged on the punching fixed plate (34), and the other end of the punch (33) correspondingly extends to penetrate through the pressing plate (32) to be embedded into a corresponding hole (311) of the positioning female die (31);
guiding is carried out by the guiding component (37) for assisting in positioning the female die (31) and the pressing plate (32), the pressing plate (32) is firmly pressed on the thin-wall groove body (12), the punch (33) penetrates through the pressing plate (32), the pressing plate (32) plays a guiding role on the punch (33), and the punch (33) can be guaranteed to punch at the corresponding position of the thin-wall groove body (12), so that the position of the punch (33) is guaranteed to be correct;
step five: extruding and curling the side position of the thin-wall groove body (12) through the drawing hole rolling die (4) to form a rolling groove (13); the round rolling groove (13) is fixedly arranged at a single side position at one end of the thin-wall groove body (12) and is of a groove-shaped integrated structure;
the drawing hole rolling die (4) comprises a positioning module (41) and a rolling punch structure (42); the positioning module (41) comprises a rolling lower die (411) and a matching insert (43); a thin-wall groove body (12) is adaptively embedded between the rolling lower die (411) and the matching insert (43), and a notch of the thin-wall groove body (12) is arranged upwards; the rolling lower die (411) and the insert (431) on the matching insert (43) are correspondingly adapted to be filled in the concave position of the thin-wall groove body (12); a guide notch (432) is formed in one side of the matching insert (43); the guide notch (432) is correspondingly provided with a round punch structure (42); the rolling punch structure (42) extrudes the protruding position of the side wall of the thin-wall groove body (12) to form a rolling groove (13);
the rolling lower die (411) is arranged on a rolling lower fixed plate through a discharging screw, and the rolling lower fixed plate is arranged on a lower die plate of the drawing hole rolling die (4) through a discharging screw; a plurality of springs (44) on the lower die plate of the drawing hole rolling die (4) are fixedly provided with positioning ejector pins (441); one end of the positioning ejector pin (441) far away from the spring (44) penetrates through the rolling lower fixing plate and the rolling lower die (411) to be abutted against the bottom of the thin-wall groove body (12); a plurality of positioning jacking pins (441) are arranged at intervals along the length direction of the thin-wall groove body (12); the rolling lower die (411) and the matching insert (43) are provided with a push rod (45) in a penetrating way; the ejector rod (45) passes through a through hole on the thin-wall groove body (12);
the rounding punch head structure (42) comprises a rounding pushing block (421); the rolling pushing block (421) is correspondingly spliced with the matching insert (43) and arranged at the position of the guide notch (432); the two ends of the matching insert (43) are respectively provided with a pressing block (433); the bottoms of the pressing blocks (433) are correspondingly pressed at the two ends of the thin-wall groove body (12); the width of one end of the rolling pushing block (421) is gradually reduced, and one end of the rolling pushing block (421) with reduced width is adapted to one end with gradually increased thin-wall groove body (12); the bottom of the rolling pushing block (421) is in a concave-convex curved surface shape, and the bottom of the rolling pushing block (421) is correspondingly extruded to one side edge of the thin-wall groove body (12);
the thin-wall groove body (12) is matched with the rolling lower die (411), the positioning top pins (441) on the springs (44) are abutted against the bottom of the thin-wall groove body (12), the thin-wall groove body (12) is limited, and the thin-wall groove body (12) is limited through the positioning top pins (441); the fit insert (43) is matched with the pressing block (433) to press and limit the thin-wall groove body (12), so that the thin-wall groove body (12) is prevented from moving easily, and then the single-side rolling processing is performed on the thin-wall groove body (12) through the rolling pushing block (421).
2. A working die for a working process of an automobile armrest frame according to claim 1, wherein: the punch heads (33) are respectively and correspondingly arranged at two ends of the thin-wall groove body (12), and the diameter of the punch head (33) at one end of the thin-wall groove body (12) is larger than that at the other end of the thin-wall groove body (12); the punches (33) with large diameters are staggered;
a plurality of positioning guide pins (36) are arranged between the positioning female die (31) and the pressing plate (32) at intervals; the positioning guide pins (36) are arranged around the periphery of the thin-wall groove body (12); a guide part (37) is arranged between the upper die plate and the lower die plate of the punching die (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210355561.8A CN114733973B (en) | 2022-04-06 | 2022-04-06 | Processing technology and processing die for automobile armrest frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210355561.8A CN114733973B (en) | 2022-04-06 | 2022-04-06 | Processing technology and processing die for automobile armrest frame |
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| CN114733973B true CN114733973B (en) | 2023-08-04 |
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|---|---|
| CN114733973A (en) | 2022-07-12 |
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