CN114393106B

CN114393106B - Stamping manufacturing process method and process system of lashing retainer

Info

Publication number: CN114393106B
Application number: CN202111446390.1A
Authority: CN
Inventors: 曹一枢; 段玉霞
Original assignee: Wuxi Shuguang Precision Industry Co ltd
Current assignee: Wuxi Shuguang Precision Industry Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-06-16
Anticipated expiration: 2041-11-30
Also published as: CN114393106A

Abstract

The invention discloses a punching manufacturing process method and a punching manufacturing process system of a lashing retainer, wherein a positioning hole is punched by a punching die driven by a press; then the rib pressing module is used for pressing the rib; then cutting off the outline shape through a trimming module; then bending is carried out through a bending module; finally, cutting off redundant plate scraps through a scrap cutting die; and then, carrying out multidirectional synchronous punching on the piece to be punched processed by the process through a bracket punching die. According to the invention, the continuous stamping die is used for stamping forming, so that multiple working procedures are synchronously performed, and then the bracket punching die is used for synchronously performing multi-directional punching, so that the production efficiency is effectively improved; by arranging the lower guide ruler, the elastic guide assembly, the embedded block group, the pressing assembly and the like which have the functions of limiting, guiding, fixing and buffering, the quality of products is ensured; through the classifying die installation setting that adopts the multi-module, the effective life of utilization mould that can be abundant reduces the replacement cost.

Description

Stamping manufacturing process method and process system of lashing retainer

Technical Field

The invention relates to the field of stamping technology, in particular to a stamping manufacturing process method and a process system of a lashing retainer.

Background

The automobile winch is applied to special vehicles and ships for self-protection and traction, a common mechanical winch is strong in torque and very good in toughness and durability because of direct force applied to an engine, but the automobile winch has the defects of large size, very large weight and quite limited applicable vehicle types, so that a winch retainer formed by stamping a metal plate is most suitable to be applied to the mechanical winch, the winch retainer is simple and portable in structure, and the problems of low production efficiency, low service life of a die, high maintenance cost of the die and the like exist in production because of various processing procedures of the winch retainer.

Disclosure of Invention

The invention aims to: in order to overcome the defects in the prior art, the invention provides a punching manufacturing process method and a punching manufacturing process system for a lashing retainer, which have high production efficiency and low cost.

The technical scheme is as follows: in order to achieve the above object, the present invention provides a method and a system for manufacturing a lashing holder by punching, wherein the method comprises the following steps:

step A, punching: driving a punching die to punch a positioning hole through a press;

step B, rib pressing: the reinforcement is pressed through the reinforcement pressing module, specifically, upward reinforcement pressing is firstly carried out, and then downward reinforcement pressing is carried out;

step C, trimming: cutting off the outline shape by a trimming module, wherein the outline shape comprises an inner trimming and an outer trimming, and the part with the positioning hole is reserved;

step D, bending: bending the cut plate for multiple times according to a preset finished product shape by a bending module, wherein the plate is firstly bent upwards at a plurality of positions at the front end, then bent downwards at a plurality of positions at the tail end, and finally bent upwards at the middle part of one position;

step E, cutting waste: cutting off redundant plate scraps through a scrap cutting die;

step F, punching: and carrying out multidirectional synchronous punching on the piece to be punched processed by the process through the bracket punching die.

Further, the steps A, B, C, D and E are all completed by a continuous stamping die.

Further, the lashing retainer comprises an annular plate-shaped body, the plate-shaped body is bent into an S shape, the upper semi-ring of the plate-shaped body is provided with continuous convex ribs, the lower semi-ring of the plate-shaped body is provided with segmented convex ribs, and the continuous convex ribs and the segmented convex ribs are both convex towards the bending inner part of the plate-shaped body; two sides of the lower semi-ring are respectively provided with an ear;

two through holes are formed in the side of the ear, two mounting holes are formed in two sides of the continuous convex rib respectively, and welding thread plugs are arranged in the mounting holes;

the edges of the upper semi-rings extend into the bending of the plate-shaped body and are provided with arc curved surfaces.

Further, the continuous stamping die comprises a press base, an upper beam frame is arranged right above the press base, the press base and the upper beam frame are rectangular and vertically aligned, the upper beam frame and the press base are relatively movably arranged through a plurality of guide assemblies, the guide assemblies are vertically arranged, and the upper beam frame is driven to move up and down through a press main cylinder; a punching section is arranged between the base and the upper beam frame; a plurality of dies are continuously arranged in the punching interval along the length direction, and a lower guide rule is arranged at the feeding end of the punching interval and fixed on the base; the plate enters the punching section from the feeding end of the punching section through the lower guide rule;

the multiple dies are arranged according to the working procedures and sequentially comprise a punching die, a rib pressing die set, a trimming die set, a bending die set and a waste cutting die set; the die comprises an upper die and a lower die, wherein the upper die is fixed through an upper fixing plate, and the upper fixing plate is fixed on the lower end face of the upper beam frame; the lower die is correspondingly arranged right below the upper die, and is fixed on the upper end face of the press base through a lower fixing plate.

Further, two sides of the upper end surface of the lower fixing plate are respectively arranged on a stop plate, the stop plates are elastically arranged on the lower fixing plate through elastic guide assemblies, the upper die and the lower die are positioned between the stop plates at two sides, and two side edges of the plate are supported through the stop plates;

the elastic guide assembly comprises a guide part and an elastic part, the guide part comprises a small guide pillar and a small guide sleeve, the small guide pillar is vertically fixed on the upper end face of the lower fixing plate through the elastic part, the small guide sleeve is sleeved on the small guide pillar, the small guide sleeve is arranged in a sliding manner relative to the small guide pillar, and the small guide sleeve is fixedly arranged on the lower end face of the stop plate.

Further, the plurality of dies are respectively positioned in the plurality of modules, empty stations are arranged between the modules, and the dies positioned in the same module share the same lower fixing plate and the same upper fixing plate; wherein the punching die, the rib pressing die set and the trimming die set are positioned in the first die set; the bending module comprises a front end upward bending module, a tail end downward bending module and a middle upward bending module; the front end upward bending module is located in the second module, the tail end downward bending module is located in the third module, and the middle upward bending module is located in the fourth module.

Further, the bracket punching die comprises a bracket base, wherein an insert group is fixedly arranged on the upper end surface of the bracket base through a lower mounting plate, the upper end surface of the insert group is a supporting surface, the workpiece to be punched is supported on the supporting surface, and the workpiece to be punched is fixedly pressed through a pressing component; the workpiece to be punched comprises multiple-orientation surfaces to be punched, an upper punch, an inclined punch and two lateral punches are arranged opposite to the surfaces to be punched, the upper punch and the inclined punch are fixed on the lower bottom surface of an upper template through an upper cushion block, the upper template is supported and arranged on the upper end surface of a support base through an elastic guide pillar, the two lateral punches are respectively located on two sides of the slug group, and the lateral punches are fixedly mounted on the support base through punch mounting seats.

Further, the first insert and the second insert are tightly attached, the upper surface of the first insert is connected with the upper surface of the second insert to form the supporting surface, and the shape of the supporting surface is attached to the shape of the lashing retainer; the upper end face of the first embedded block, the inclined faces of the upper ends of the second embedded block and the positions of the two side faces attached to the surface to be punched are respectively provided with a female die correspondingly; the ear is attached to the female die on two sides of the insert.

Further, the pressing assembly comprises a pressing plate, the pressing plate is attached to the side of the ear, the pressing plate is driven to be pressed by a cylinder, the pressing plate is connected to the punch mounting seat through a plurality of elastic pieces, and a through hole for a lateral punch to pass through is formed in the pressing plate; the elastic pieces are uniformly distributed around the through holes.

The beneficial effects are that: according to the stamping manufacturing process method and the stamping manufacturing process system of the lashing retainer, disclosed by the invention, the continuous stamping die is used for stamping forming, so that multiple working procedures are synchronously performed, and the support punching die is used for synchronously performing multidirectional punching, so that the production efficiency is effectively improved; by arranging the lower guide ruler, the elastic guide assembly, the embedded block group, the pressing assembly and the like which have the functions of limiting, guiding, fixing and buffering, the quality of products is ensured; through the classifying die installation setting that adopts the multi-module, the effective life of utilization mould that can be abundant reduces the replacement cost.

Drawings

FIG. 1 is a flow chart of a stamping manufacturing process;

FIG. 2 is a block diagram of a lashing holder;

FIG. 3 is a block diagram of a continuous stamping die;

FIG. 4 is a block diagram of the baffle and spring guide assembly;

FIG. 5 is a diagram of a module versus empty station;

FIG. 6 is a block diagram of a bracket punching die;

FIG. 7 is a side view of a bracket cut-out die;

FIG. 8 is a block diagram of a block set;

fig. 9 is a block diagram of a press assembly.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

A method and a system for manufacturing a lashing holder by punching, according to the present invention, as shown in fig. 1 to 9, comprising the steps of:

Step A, step B, step C, step D and step E are all completed by a continuous stamping die.

The lashing retainer comprises an annular plate-shaped body 1, wherein the plate-shaped body 1 is bent into an S shape, an upper semi-ring 1-1 of the plate-shaped body 1 is provided with a continuous convex rib 2, a lower semi-ring 1-2 of the plate-shaped body 1 is provided with a segmented convex rib 3, and the continuous convex rib 2 and the segmented convex rib 3 are both protruded towards the bending inner part of the plate-shaped body 1; two sides of the lower semi-ring 1-2 are respectively provided with a pair of earrings 4;

two through holes are formed in the side 4, two mounting holes 5 are formed in two sides of the continuous convex rib 2 respectively, and a welding thread plug 6 is arranged in each mounting hole 5;

the edges of the upper semi-ring 1-1 extend into the bending of the plate-shaped body 1 and are provided with arc curved surfaces 7.

The continuous stamping die comprises a press base 8, an upper beam frame 9 is arranged right above the press base 8, the press base 8 and the upper beam frame 9 are rectangular and are vertically aligned, the upper beam frame 9 and the press base 8 are relatively movably arranged through a plurality of guide assemblies 10, the guide assemblies 10 are vertically arranged, and the upper beam frame 9 is driven to move up and down through a press main cylinder; a punching section 11 is arranged between the base 8 and the upper beam frame 9; a plurality of dies 12 are continuously arranged in the punching section 11 along the length direction, a lower guide ruler 13 is arranged at the feeding end of the punching section 11, the lower guide ruler 13 is fixed on the base 8, the lower guide ruler 13 comprises a supporting plate and two side baffles, the supporting plate is horizontally fixed on the base through a cushion block, the two side baffles are vertically arranged on two sides of the supporting plate respectively to form a U-shaped guide groove, the groove width of the U-shaped guide groove is consistent with the width of the plate, and the upper end face of the supporting plate is leveled with the upper end face of the lower die; the sheet material 20 passes through the lower guide ruler 13 from the feeding end of the punching section 11 and enters the punching section 11;

the dies 12 are arranged according to the working procedure, and sequentially comprise a punching die, a rib pressing die set, a trimming die set, a bending die set and a waste cutting die set; the die 12 comprises an upper die 14 and a lower die 15, wherein the upper die 14 is fixed by an upper fixing plate 16, and the upper fixing plate 16 is fixed on the lower end surface of the upper beam frame 9; the lower die 15 is correspondingly arranged right below the upper die 14, and the lower die 15 is fixed on the upper end surface of the press base 8 through a lower fixing plate 17;

the sheet material is clamped and fed into the punching interval by the feeder by a preset feeding amount, is fed once every punching, plays a role of guiding and limiting through the lower guide ruler, enables the sheet material to advance in a preset feeding direction, sequentially performs punching, rib pressing, trimming, bending and waste cutting, enables multiple working procedures to be performed synchronously, is orderly and efficient, can complete punching work fast, and improves working efficiency.

The two sides of the upper end surface of the lower fixing plate 17 are respectively arranged on a stop plate 18, the stop plates 18 are elastically arranged on the lower fixing plate 17 through elastic guide assemblies 19, the upper die 14 and the lower die 15 are positioned between the stop plates 18 on the two sides, and the two side edges of the plate 20 are supported by the stop plates 18;

the elastic guide assembly 19 comprises a guide part and an elastic part, the guide part comprises a small guide pillar 21 and a small guide sleeve 22, the small guide pillar 21 is vertically fixed on the upper end face of the lower fixing plate 17 through the elastic part, the small guide sleeve 22 is sleeved on the small guide pillar 21, the small guide sleeve 22 is slidably arranged relative to the small guide pillar 21, the small guide sleeve 22 is fixedly arranged on the lower end face of the stop plate 18, the elastic part adopts a nitrogen spring 21-1, a buffer spring 21-2 is fixedly arranged at the top end of the small guide pillar 21, and the buffer spring 21-2 contacts the lower end face of the stop plate 18 in the punching process;

through end baffle and elastic guide subassembly supporting plate for the panel is located the top of lower mould, leaves an elastic space with the lower mould between, and the punching press in-process makes the panel be close to the lower mould through last mould pushing down, has accomplished the punching press, and this in-process plays direction and cushioning effect with elastic guide subassembly, and after the punching press of once, the panel just can be lifted by the backstop board, breaks away from the lower mould again, has two advantages like this: firstly, make things convenient for panel and cut the waste material separation after the punching press to be convenient for the clearance of waste material, secondly, for the structural shape of lower mould is different, and the plane that both sides backstop board constitutes is smoother, is convenient for the feeding of panel.

The plurality of dies 12 are respectively positioned in a plurality of modules, a hollow station 27 is arranged between the modules, and the dies 12 positioned in the same module share the same lower fixing plate 17 and the upper fixing plate 16; wherein the punching die, the rib pressing die set and the trimming die set are positioned in the first die set 23; the bending module comprises a front end upward bending module, a tail end downward bending module and a middle upward bending module; the front end upward bending module is located in the second module 24, the tail end downward bending module is located in the third module 25, and the middle upward bending module is located in the fourth module 26;

according to the working procedure, the whole stamping process is divided into a plurality of modules, the more continuous and similar processing processes are placed in the same module, and empty stations are arranged among the modules, namely, the positions, which are not provided with the dies, in one feeding amount are provided with a certain distance for the installation among the dies, so that the influence among the dies is avoided;

the process in the first module is completed in a plane, the purpose is to cut the plate into the approximate outline of the target product, the second module, the third module and the fourth module are bending processes, in order to ensure better bending effect, the processing sequence of bending at the two ends and bending at the middle part is adopted, the bending directions are different, the bending directions are respectively that the front end is upwards bent, the tail end is downwards bent at a plurality of positions, the middle part is upwards bent at a time, and the classification is carried out, and then the corresponding dies are respectively corresponding to the second module, the third module and the fourth module;

the moulds in the same module are fixed through the same fixed plate, and an empty station distance is reserved between the adjacent moulds on the adjacent fixed plates, so that the moulds are different in the whole stamping process and different in stamping type, and the abrasion degree is different.

The bracket punching die comprises a bracket base 28, wherein an insert block group 30 is fixedly arranged on the upper end surface of the bracket base 28 through a lower mounting plate 29, the upper end surface of the insert block group 30 is a supporting surface 31, the supporting surface 31 supports the workpiece to be punched, and the workpiece to be punched is fixedly pressed through a pressing component 39; the workpiece to be punched comprises multiple-orientation workpiece to be punched, an upper punch 32, an inclined punch 33 and two lateral punches 34 are arranged opposite to the workpiece to be punched, the upper punch 32 and the inclined punch 33 are fixed on the lower bottom surface of an upper template 36 through an upper cushion block 35, the upper template 36 is supported and arranged on the upper end surface of a support base 28 through an elastic guide post 37, the two lateral punches 34 are respectively positioned on two sides of an insert block group 30, and the lateral punches 34 are fixedly arranged on the support base 28 through a punch mounting seat 38;

the punches are correspondingly arranged at positions corresponding to the positions to be punched through the support structure, and are controlled by a plurality of cylinders supplied with air by the same air circuit respectively, so that the synchronous multi-directional punching is completed, and the working efficiency is effectively improved.

The oblique punch 33 is connected to the cylinder through an oblique punch mounting block 45, a guide groove 46 is formed in the side wall of the oblique punch mounting block 45, the oblique punch mounting block 45 is arranged in a sliding mode along an oblique guide block 47 through the guide groove 46, and the oblique guide block 47 is supported and fixed on the upper end face of the bracket base 28 through a lower cushion block 48;

the oblique guide block is matched with the guide groove, so that the oblique punch always keeps the direction of the surface to be punched.

The first insert 30-1 and the second insert 30-2 are closely arranged, the upper surface of the first insert 30-1 is connected with the upper surface of the second insert 30-2 to form the supporting surface 31, and the shape of the supporting surface 31 is attached to the shape of the piece to be punched; the upper end face of the first insert 30-1, the inclined face of the upper end of the second insert 30-2 and the positions of the two side faces attached to the surface to be punched are respectively provided with a female die 40 correspondingly; the ear 4 is attached to the female die 40 positioned on the side surface of the second insert 30-2;

the punching die is convenient to attach to the supporting surface better, plays a role in positioning and fixing, has high processing difficulty of the embedded blocks due to special shape and the need of arranging the female dies at a plurality of positions, adopts the splicing mode of the two embedded blocks, and is beneficial to manufacturing of the embedded blocks.

The pressing assembly 39 comprises a pressing plate 41, the pressing plate 41 is attached to the ear, the pressing plate 41 is pressed by a cylinder, the pressing plate 41 is connected to the punch mounting seat 38 through a plurality of elastic pieces 42, and a through hole 43 for the lateral punch 34 to pass through is formed in the pressing plate 41; the elastic members 42 are uniformly distributed around the through holes 43;

after the piece to be punched is placed on the lower die assembly, the pressure plates are driven by the air cylinders to press the earsides from two sides, the lateral punches penetrate through the through holes in the middle of the pressure plates, the earsides are punched, the elastic pieces play a certain buffering role, the influence of the lateral punching on the structure of the earsides is avoided, and the quality of a finished product of the hinge retainer is guaranteed.

The foregoing description is only of the preferred embodiments of the invention, it being noted that: it will be apparent to those skilled in the art that numerous modifications and adaptations can be made without departing from the principles of the invention described above, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims

1. The stamping manufacturing process method of the lashing retainer is characterized by comprising the following steps of:

step F, punching: carrying out multidirectional synchronous punching on the piece to be punched processed by the process through a bracket punching die;

step A, step B, step C, step D and step E finish processing through the continuous stamping die;

the winch retainer comprises an annular plate-shaped body (1), wherein the plate-shaped body (1) is bent into an S shape, an upper semi-ring (1-1) of the plate-shaped body (1) is provided with a continuous convex rib (2), a lower semi-ring (1-2) of the plate-shaped body (1) is provided with a segmented convex rib (3), and the continuous convex rib (2) and the segmented convex rib (3) are both protruded towards the bending inner part of the plate-shaped body (1); two sides of the lower semi-ring (1-2) are respectively provided with an ear (4);

two through holes are formed in the ear (4), two mounting holes (5) are formed in two sides of the continuous convex rib (2), and a welding thread plug (6) is arranged in each mounting hole (5);

the edges of the upper semi-ring (1-1) extend into the bending of the plate-shaped body (1) and are provided with arc curved surfaces (7);

the bracket punching die comprises a bracket base (28), wherein an insert block group (30) is fixedly arranged on the upper end surface of the bracket base (28) through a lower mounting plate (29), the upper end surface of the insert block group (30) is a supporting surface (31), the supporting surface (31) supports the piece to be punched, and the piece to be punched is fixedly pressed through a pressing component (39); the to-be-punched piece comprises to-be-punched surfaces with various orientations, an upper punch (32), an inclined punch (33) and two lateral punches (34) are arranged opposite to the to-be-punched surfaces, the upper punch (32) and the inclined punch (33) are fixed on the lower bottom surface of an upper die plate (36) through an upper cushion block (35), the upper die plate (36) is supported and arranged on the upper end surface of a support base (28) through an elastic guide pillar (37), the two lateral punches (34) are respectively positioned on two sides of an embedded block group (30), and the lateral punches (34) are fixedly arranged on the support base (28) through a punch mounting seat (38);

the first insert (30-1) and the second insert (30-2) are tightly attached, the upper surface of the first insert (30-1) and the upper surface of the second insert (30-2) are connected to form the supporting surface (31), and the shape of the supporting surface (31) is attached to the shape of the lashing retainer; the upper end face of the first embedded block (30-1), the inclined face of the upper end of the second embedded block (30-2) and the positions of the two side faces attached to the surface to be punched are respectively provided with a female die (40) correspondingly; the ear (4) is attached to the female die (40) located on the side face of the second insert (30-2).

2. The processing system in the press manufacturing process method of the lashing holder according to claim 1, wherein: the continuous stamping die comprises a press base (8), an upper beam frame (9) is arranged right above the press base (8), the press base (8) and the upper beam frame (9) are rectangular and vertically aligned, the upper beam frame (9) and the press base (8) are relatively movably arranged through a plurality of guide assemblies (10), the guide assemblies (10) are vertically arranged, and the upper beam frame (9) is driven to move up and down through a main press cylinder; a punching section (11) is arranged between the press base (8) and the upper beam frame (9); a plurality of dies (12) are continuously arranged in the punching section (11) along the length direction, a lower guide rule (13) is arranged at the feeding end of the punching section (11), and the lower guide rule (13) is fixed on the press base (8); the sheet material (20) enters the punching section (11) from the feeding end of the punching section (11) through the lower guide rule (13);

the multiple dies (12) are arranged according to the working procedure, and sequentially comprise a punching die, a rib pressing die set, a trimming die set, a bending die set and a waste cutting die set; the die (12) comprises an upper die (14) and a lower die (15), the upper die (14) is fixed through an upper fixing plate (16), and the upper fixing plate (16) is fixed on the lower end face of the upper beam frame (9); the lower die (15) is correspondingly arranged right below the upper die (14), and the lower die (15) is fixed on the upper end face of the press base (8) through a lower fixing plate (17).

3. The process system of claim 2, wherein: the two sides of the upper end surface of the lower fixing plate (17) are respectively arranged on a stop plate (18), the stop plates (18) are elastically arranged on the lower fixing plate (17) through elastic guide assemblies (19), the upper die (14) and the lower die (15) are positioned between the stop plates (18) at the two sides, and the two side edges of the plate (20) are supported through the stop plates (18);

the elastic guide assembly (19) comprises a guide part and an elastic part, the guide part comprises a small guide pillar (21) and a small guide sleeve (22), the small guide pillar (21) is vertically fixed on the upper end face of the lower fixing plate (17) through the elastic part, the small guide sleeve (22) is sleeved on the small guide pillar (21), the small guide sleeve (22) is arranged in a sliding mode relative to the small guide pillar (21), and the small guide sleeve (22) is fixedly arranged on the lower end face of the stop plate (18).

4. A process system according to claim 3, wherein: the plurality of the moulds (12) are respectively positioned in a plurality of modules, a hollow station (27) is arranged between the modules, and the moulds (12) positioned in the same module share the same lower fixing plate (17) and the upper fixing plate (16); wherein the punching die, the rib pressing die set and the trimming die set are positioned in the first die set (23); the bending module comprises a front end upward bending module, a tail end downward bending module and a middle upward bending module; the front end upward bending module is located in the second module (24), the tail end downward bending module is located in the third module (25), and the middle upward bending module is located in the fourth module (26).

5. The process system of claim 4, wherein: the pressing assembly (39) comprises a pressing plate (41), the pressing plate (41) is attached to the front side of the ear, the pressing plate (41) is pressed by a cylinder, the pressing plate (41) is connected to the punch mounting seat (38) through a plurality of elastic pieces (42), and a through hole (43) for a lateral punch (34) to penetrate is formed in the pressing plate (41); a plurality of elastic pieces (42) are uniformly distributed around the through holes (43).