CN210146773U - Supporting table stamping die - Google Patents

Abstract

The utility model discloses a supporting table stamping die, which comprises an upper die base and a lower die base, wherein a stamping die groove is arranged on the bottom surface of the upper die base along the length direction of the bottom surface, and a first blanking die, a second blanking die, a third blanking die, a 45-degree bending die, a 90-degree bending die and a cutting knife are sequentially arranged on the bottom surface of the bottom of the stamping die groove along the feeding direction of a copper strip; the top surface of the lower die holder is respectively provided with a first blanking die, a second blanking die, a third blanking die, a 45-degree bending die, a 90-degree bending die and a first blanking portion, a second blanking portion, a third blanking portion, a 45-degree bending portion, a 90-degree bending portion and a cutting portion which are matched with the cutting knives in a one-to-one correspondence mode. The utility model discloses integrated a plurality of stamping processes are on same mould, and the preparation brace table of punching press that can be integrative has reduced manufacturing cost, has improved the product precision.

Description

Supporting table stamping die

Technical Field

The utility model relates to a hardware processing technology field, concretely relates to brace table stamping die.

Background

The stamping die is used for stamping and forming a plate and separating blanking, comprises a blanking die, a bending die, a stretching film, a hole flanging die and the like, the plate is formed through a die cavity, and the plate is separated or cut through a blanking knife edge of the stamping die.

In the existing hardware products, a supporting platform is often used, and the specific structure is shown in fig. 4, the supporting platform includes a main body 41 and a column base 42, an M-shaped notch 42a is formed in the column base 42, a rectangular platform 42b is arranged on the M-shaped notch 42a, and an arc-shaped notch 42c is further formed in the bending end of the column base 42. When the supporting table is produced, the copper sheet needs to be punched three times in sequence to form the M-shaped notch 42a, the rectangular table 42b and the arc-shaped notch 42c, then the column base 42 can be formed by bending the copper sheet twice, and finally the supporting table can be successfully prepared by cutting. In the actual production and preparation process, the support table is prepared by a plurality of stamping dies in a plurality of stamping processes, and the following defects exist: (1) the use of a plurality of dies inevitably matches a plurality of corresponding devices, increasing production costs; (2) tolerance accumulation of processed products can be caused when multiple times of stamping are carried out through different stamping dies, and the product precision is not high.

SUMMERY OF THE UTILITY MODEL

The preparation in order to solve present brace table need use a plurality of moulds to divide the problem that manufacturing cost height, precision are not high that a plurality of stamping processes exist, the utility model aims to provide an integrated a plurality of stamping processes, brace table stamping die of integrative punching press preparation shaping product of ability.

The utility model discloses the technical scheme who adopts does:

a supporting table stamping die comprises an upper die holder and a lower die holder, wherein the upper die holder and the lower die holder are used for forming a supporting table after die assembly;

the supporting table comprises a main body and column feet positioned on two sides of the main body, an included angle between the column feet and the corresponding side edge of the main body is 90 degrees, an M-shaped notch is formed in each column foot, a rectangular table is arranged on the inner side of the bent part of the M-shaped notch, and an arc-shaped notch is formed in one end, close to the end part of the main body, of the bent end of each column foot;

a stamping die groove is formed in the bottom surface of the upper die base along the length direction of the bottom surface, and a first blanking die, a second blanking die, a third blanking die, a 45-degree bending die, a 90-degree bending die and a cutting knife are sequentially arranged on the bottom surface of the bottom of the stamping die groove along the feeding direction of the copper strip;

the top surface of the lower die base is respectively provided with a first blanking part, a second blanking part, a third blanking part, a 45-degree bending part, a 90-degree bending part and a cutting part which are matched with the first blanking die, the second blanking die, the third blanking die, the 45-degree bending die, the 90-degree bending die and the cutting knife in a one-to-one correspondence manner;

the first blanking die and the first blanking part are matched with each other to form the rectangular table, the second blanking die and the second blanking part are matched with each other to form the M-shaped notch, and the third blanking die and the third blanking part are matched with each other to form the arc-shaped notch;

the 45-degree bending die and the 45-degree bending part are matched with each other to bend an unbent column base by 45 degrees, the 90-degree bending die and the 90-degree bending part are matched with each other to bend the column base bent by 45 degrees to 90 degrees, and the cutting knife and the cutting part are matched with each other to cut the supporting table off the copper strip.

Preferably, the first blanking die is a rectangular boss, and the first blanking portion is a rectangular groove matched with the rectangular boss;

the number of the rectangular bosses is two, and the rectangular bosses are symmetrically arranged along the center line of the width direction of the groove of the punching die;

when the upper die holder and the lower die holder are assembled, the rectangular boss is inserted into the rectangular groove, and the rectangular table is formed.

Preferably, the second blanking die is an M-shaped boss, and the second blanking portion is an M-shaped groove matched with the M-shaped boss;

the number of the M-shaped bosses is two, and the M-shaped bosses are symmetrically arranged along the center line of the width direction of the groove of the punching die;

when the upper die holder and the lower die holder are assembled, the M-shaped boss is inserted into the M-shaped groove, and the M-shaped notch is formed.

Preferably, the bottom surface of the groove bottom of the die groove is further provided with M-shaped placing grooves, the M-shaped placing grooves are symmetrically arranged along the central line of the width direction of the die groove, and the M-shaped placing grooves are located between the second blanking die and the third blanking die and have the same structure as the M-shaped grooves;

and when the upper die holder and the lower die holder are assembled, the formed M-shaped notch is inserted into the M-shaped placing groove on the corresponding side.

Preferably, the third blanking die is formed by integrally forming a T-shaped boss and an arc-shaped outer convex block, wherein the arc-shaped outer convex block is arranged on one end of the bottom of the T-shaped boss, which is far away from the 45-degree bending die, and the third blanking portion is provided with a groove matched with the third blanking die in structure;

the number of the third blanking dies is two, and the third blanking dies are symmetrically arranged along the center line of the width direction of the groove of the stamping die;

and when the upper die base and the lower die base are assembled, the third blanking die is inserted into the groove, and the arc-shaped notch is formed.

Preferably, the 45-degree bending die comprises a first bending groove and a first stamping platform, the first bending groove is formed in the bottom surface of the die groove along the width direction of the bottom surface, the first stamping platform is arranged in the first bending groove, the cross section of the first stamping platform is of an isosceles trapezoid structure, and the included angle between two oblique edges of the first stamping platform and the bottom edge is 45 degrees;

two side edges of the top surface of the first stamping platform are respectively and fixedly connected with two side edges in the width direction of the first bending groove, and the first bending groove is divided into a first stamping groove and a second stamping groove by the first stamping platform;

the 45-degree bending part comprises a first punching block and a second punching block, the first punching block corresponds to the first punching groove in position and is matched with the first punching groove in shape, and the second punching block corresponds to the second punching groove in position and is matched with the second punching groove in shape;

when the upper die holder and the lower die holder are assembled, the first stamping block is inserted into the first stamping groove, and the second stamping block is inserted into the second stamping groove and used for bending the column base which is not bent by 45 degrees.

Preferably, the 90-degree bending die comprises a second bending groove and a second punching table, the second bending groove is formed in the bottom surface of the die groove along the width direction of the bottom surface, the second punching table is arranged in the second bending groove, the second punching table is a rectangular table, two side edges in the width direction of the second punching table are fixedly connected with two side edges in the width direction of the second bending groove respectively, and the second punching table divides the second bending groove into a third punching groove and a fourth punching groove;

the 90-degree bending part comprises a third punching block and a fourth punching block, the third punching block corresponds to the third punching groove in position and is matched with the third punching groove in shape, and the fourth punching block corresponds to the fourth punching groove in position and is matched with the fourth punching groove in shape;

when the upper die holder and the lower die holder are assembled, the third stamping block is inserted into the third stamping groove, and the fourth stamping block is inserted into the fourth stamping groove and used for bending the column base bent by 45 degrees to 90 degrees.

Preferably, the cutting knife is a trapezoidal cutting block, and the cutting part is a trapezoidal cutting groove matched with the trapezoidal cutting block;

and when the upper die base and the lower die base are assembled, the trapezoidal cutting block is inserted into the trapezoidal cutting groove, and the supporting table is cut off from the copper belt.

Preferably, a plurality of mounting grooves are sequentially formed in the top surface of the lower die base along the copper strip feeding direction, springs are vertically arranged in the mounting grooves, mounting columns are fixed at the upper ends of the springs, and mounting column grooves corresponding to the mounting columns in position one by one are formed in the bottoms of the stamping die grooves;

the mounting column grooves are symmetrically arranged along the central line of the width direction of the groove of the stamping die, the peripheral surface of each mounting column is provided with a placing groove for placing the copper strip, and the side edge of the copper strip is movably placed and mounted on the mounting column after being placed into the placing groove on the corresponding side;

and when the upper die base and the lower die base are assembled, the mounting column is compressed, and the copper strip is in contact with the surface of the lower die base.

Preferably, conical positioning punching needles are sequentially and equidistantly arranged at the bottom of the stamping die groove along the feeding direction of the copper strip, the conical positioning punching needles are symmetrically arranged along the center line of the width direction of the stamping die groove, and positioning holes corresponding to the conical positioning punching needles in position one to one are formed in the surface of the lower die base.

The utility model has the advantages that:

(1) the utility model relates to a brace table stamping die, the utility model discloses the tank bottom of the die recess in last mould bottom surface sets gradually first blanking die along copper strips direction of feed, the second blanking die, the third blanking die, 45 bending die, 90 bending die and cutting die, top surface at the bed die sets up first blanking portion respectively, the second blanking portion, third blanking portion, 45 bending portion, 90 bending portion and cutting portion, and first blanking die is used for shaping rectangle platform with first blanking portion mutually supported, the second blanking die is used for shaping M type breach with second blanking portion mutually supported, third blanking die is used for shaping arc breach with third blanking portion mutually supported, 45 bending die is mutually supported with 45 bending portion and 90 bending die is used for bending for the styletable foot of buckling with 90 bending portion mutually supported, and become 90 degrees contained angles with the main part. Through the design, the utility model discloses can carry out cubic blanking, twice bending on same mould in proper order to the copper sheet of sending into, and then prepare out a supporting bench, the problem of having avoided traditional processing to exist needs to use a plurality of moulds to carry out a lot of punching presses has reduced manufacturing cost, has increased the precision of product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a three-dimensional structure of an upper die base provided by the present invention.

Fig. 2 is a top view of the upper die base provided by the present invention.

Fig. 3 is a top view of the lower die holder provided by the present invention.

Fig. 4 is a schematic structural diagram of the support table provided by the present invention.

Fig. 5 is a schematic structural diagram of a second blanking die provided by the present invention.

Fig. 6 is a schematic structural view of a third blanking die provided by the present invention.

Fig. 7 is a schematic structural view of a 45 ° bending die provided by the present invention.

Fig. 8 is a schematic structural diagram of a first stamping block provided by the present invention.

Fig. 9 is a schematic structural view of a 90 ° bending die provided by the present invention.

Fig. 10 is a cross-sectional view of a mounting post and mounting groove provided by the present invention.

Fig. 11 is a schematic view of a connection structure between a mounting post and a spring according to the present invention.

Fig. 12 is a front view of the stamping die provided by the present invention.

Fig. 13 is a schematic structural diagram of the support column provided by the present invention.

In the above drawings, 10-upper die holder; 20-a lower die holder; 40-supporting the table; 41-a body; 42-column base; 42a-M type gap; 42 b-a rectangular table; 42 c-arc notch; 30-a groove; 31-a first blanking die; 32-a second blanking die; 33-a third blanking die; a bending die with the angle of 34-45 degrees; a bending die with the angle of 35-90 degrees; 36-a cutting knife; 21-a first blanking portion; 22-a second blanking portion; 23-a third blanking portion; a bending part of 24-45 degrees; a 25-90 degree bending part; 26-a cutting part; 39-M type placing grooves; 33a-T shaped boss; 33 b-arc-shaped outer bumps; 34 a-first bending groove; 34 b-a first stamping station; 34 c-first stamped groove; 34 d-second punch groove; 24 a-a first punch block; 24 b-a second punch; 35 a-second bending groove; 35 b-a second stamping station; 35 c-third punch groove; 35 d-fourth punch groove; 25 a-a third punch; 25 b-a fourth punch; 27-a mounting groove; 27 a-a spring; 27 b-mounting posts; 27 c-a placement tank; 37-mounting a column groove; 38-conical positioning punch pin; 28-positioning holes; 50-a sleeve; 60-support columns; 61-ball guide post; 62-damping spring.

Detailed Description

The invention will be further elucidated with reference to the embodiments described hereinafter. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

Example one

As shown in fig. 1 to 13, the stamping die for a supporting table provided in this embodiment includes an upper die base 10 and a lower die base 20, and the upper die base 10 and the lower die base 20 are used for forming the supporting table 40 after die assembly.

The supporting table 40 comprises a main body 41 and column bases 42 located on two sides of the main body 41, an included angle between the corresponding side edges of the column bases 42 and the main body 41 is 90 degrees, M-shaped notches 42a are formed in the column bases 42, rectangular platforms 42b are arranged on the inner sides of bent portions of the M-shaped notches 42a, and arc-shaped notches 42c are formed in one ends, close to the end portions of the main body 41, of bent ends of the column bases 42.

The bottom surface of the upper die base 10 is provided with a die groove 30 along the length direction of the bottom surface, and the bottom surface of the bottom of the die groove 30 is sequentially provided with a first blanking die 31, a second blanking die 32, a third blanking die 33, a 45-degree bending die 34, a 90-degree bending die 35 and a cutting knife 36 along the feeding direction of the copper strip.

The top surface of the lower die base 20 is respectively provided with a first blanking portion 21, a second blanking portion 22, a third blanking portion 23, a 45-degree bending portion 24, a 90-degree bending portion 25 and a cutting portion 26 which are in one-to-one corresponding fit with the first blanking die 31, the second blanking die 32, the third blanking die 33, the 45-degree bending die 34, the 90-degree bending die 35 and the cutting knife 36.

The first blanking die 31 and the first blanking portion 21 are matched with each other to form the rectangular platform 42b, the second blanking die 32 and the second blanking portion 22 are matched with each other to form the M-shaped notch 42a, and the third blanking die 33 and the third blanking portion 23 are matched with each other to form the arc-shaped notch 42 c.

The 45-degree bending die 34 and the 45-degree bending part 24 are matched with each other to bend an unbent column base 42 by 45 degrees, the 90-degree bending die 35 and the 90-degree bending part 25 are matched with each other to bend the column base 42 bent by 45 degrees to 90 degrees, and the cutting knife 36 and the cutting part 26 are matched with each other to cut the support table 40 off the copper strip.

As shown in fig. 1 to 4, the following describes a specific structure of the support table stamping die:

the upper die holder 10 and the lower die holder 20 are driven by a machine to sequentially perform blanking, bending and cutting on the fed copper sheets, so as to prepare the supporting table 40. In this embodiment, the lower die base 20 serves as a base, and the upper die base 10 is driven by the machine to punch the lower die base 20 at the same frequency, that is, the time for the upper die base 10 to press down the lower die base 20 each time is the same.

The die groove 30 is used as a stamping place of the copper sheet, and the die groove 30 is arranged along the length direction of the bottom surface and has the same length as the bottom surface of the upper die base 10.

The lower die holder 20 is used for mounting a copper strip to be processed, and under the punching of the upper die holder 10, the copper strip to be processed is sequentially punched, bent and cut through the mutual matching of the upper die holder 10 and the lower die holder 20, and the support table 40 can be manufactured after the processing is finished. In this embodiment, the copper strip to be processed moves on the lower die holder 20 at a certain speed under the action of the feeding machine.

The first blanking die 31 and the second blanking portion 21 are matched with each other to perform primary blanking on the copper strip on the lower die holder 20, so as to prepare the rectangular platform 42b on the column foot 42.

The second blanking die 32 and the second blanking portion 22 are matched with each other to perform secondary blanking on the copper strip on the lower die holder 20, so as to prepare an M-shaped notch 42a on the column foot 42.

The third blanking die 33 and the second blanking portion 23 are matched with each other to perform third blanking on the copper strip on the lower die holder 20, so that the arc-shaped notch 42c on the column foot 42 can be prepared.

After the three times of blanking, the column foot 42 of the supporting table 40 is already formed, but there is no 90-degree included angle with the main body 41, so that the column foot 42 needs to be bent through the mutual matching of the 45-degree bending die and the 45-degree bending portion and the mutual matching of the 90-degree bending die and the 90-degree bending portion.

The 45-degree bending die 34 and the 45-degree bending part 24 are matched with each other to bend the horizontal column base 42, and the bending angle is 45 degrees.

The 90-degree bending die 35 and the 90-degree bending portion 25 are matched with each other to bend the column base 42 subjected to the primary bending for the second time, that is, the column base 42 at 45 degrees is bent to 90 degrees, so as to prepare the support table 40.

After three times of blanking and two times of bending, the supporting table 40 is successfully prepared, and at this time, the supporting table 40 needs to be cut off from the copper strip through the mutual matching of the cutting knife 36 and the cutting part 26, so as to complete the collection of the product.

Through the design, the utility model discloses on same utensil stamping die, set up a plurality of punching press chambeies, collect a plurality of stamping process, make supporting bench 40's processing need not use a plurality of moulds and carry out a plurality of stamping process respectively, great reduction manufacturing cost to also avoided carrying out the poor problem of product precision that a lot of punching presses exist through a plurality of moulds.

In this embodiment, a plurality of empty spaces are further provided between the 90 ° bending die 35 and the cutting blade 36, so that a certain distance is left between two adjacent supports 40 on the copper belt, and the cutting blade 36 can cut the support table 40 conveniently.

In this embodiment, as shown in fig. 12 and 13, four end corner regions of the upper die holder 10 are respectively provided with a sleeve 50, the lower die holder 20 is provided with support pillars 60 corresponding to the positions of the sleeves 50 one by one, the upper periphery of each support pillar 60 is provided with a ball guide post 61, a damping spring 62 is arranged between each ball guide post 61 and the bottom of each support pillar 60, when the upper die holder 10 and the lower die holder 20 are assembled, each ball guide post 61 is inserted into the sleeve 50 and contacts with the bottom of the sleeve 50, and through the above design, on one hand, the damping spring 62 can play a role of buffering, and the upper die holder 10 and the lower die holder 20 are prevented from being excessively worn in a stamping process; on the other hand, the ball guide post 61 can prevent the upper die holder 10 from shifting in the pressing process, and the stamping precision is further improved.

Preferably, the first blanking die 31 is a rectangular boss, and the first blanking portion 21 is a rectangular groove matched with the rectangular boss.

The number of the rectangular bosses is two, and the rectangular bosses are symmetrically arranged along the center line of the width direction of the die groove 30.

When the upper die holder 10 is assembled with the lower die holder 20, the rectangular boss is inserted into the rectangular groove, and the rectangular table 42b is molded.

As shown in fig. 1, 2, and 3, the first blanking die 31 is a rectangular boss, the first blanking portion 21 is a rectangular recess, and the rectangular boss is symmetrically disposed along a center line in the width direction of the die recess 39.

Through the design, when the upper die holder 10 and the lower die holder 20 are assembled, the rectangular boss can be pressed down into the rectangular groove, so that the copper sheet to be processed is extruded, and a rectangular opening, namely the rectangular table 42b, is processed on two sides of the copper sheet.

Preferably, the second punching die 32 is an M-shaped boss, and the second punching portion 22 is an M-shaped groove matched with the M-shaped boss.

The number of the M-shaped bosses is two, and the M-shaped bosses are symmetrically arranged along the center line of the die groove 30 in the width direction.

When the upper die holder 10 and the lower die holder 20 are assembled, the M-shaped boss is inserted into the M-shaped groove, and the M-shaped notch 42a is formed.

As shown in fig. 4 and 5, the principle of the mutual matching between the M-shaped boss and the M-shaped groove is the same as that of the first punching die 31 and the first punching part 21, when the upper die holder 10 and the lower die holder 20 are closed, an M-shaped opening, i.e., an M-shaped notch 42a, is formed on both sides of the copper strip and is connected with the rectangular opening, and a rectangular table 42b is formed inside the bent part of the M-shaped notch 42 a.

Specifically, an M-shaped placing groove 39 is further disposed on the bottom surface of the groove bottom of the die groove 30, the M-shaped placing groove 39 is symmetrically disposed along the center line of the die groove 30 in the width direction, and the M-shaped placing groove 39 is located between the second blanking die 32 and the third blanking die 33 and has the same structure as the M-shaped groove.

When the upper die holder 10 is assembled with the lower die holder 20, the formed M-shaped notch 42a is inserted into the corresponding M-shaped placing groove 39.

As shown in fig. 1 and 2, since the copper strip advances toward the cutting blade 36 at a certain speed and forms the M-shaped notch 42a after passing through the second punching die 32 and the second punching portion 22, the M-shaped notch 42a can be inserted into the M-shaped placing groove 39 on the corresponding side during the advancing process and the die assembly process, and the formed M-shaped notch 42a can be prevented from being damaged by being pressed during the advancing process.

Preferably, the third blanking die 33 is formed by integrally forming a T-shaped boss 33a and an arc-shaped outer protrusion 33b, wherein the end of the bottom of the T-shaped boss 33a, which is far away from the 45-degree bending die 34, is provided with the arc-shaped outer protrusion 33b, and the third blanking portion 23 and the third blanking die 33 are provided with grooves matched in structure.

The number of the third cutting dies 33 is two, and the third cutting dies are symmetrically arranged along the center line of the width direction of the die groove 30.

When the upper die holder 10 is assembled with the lower die holder 20, the third blanking die 33 is inserted into the groove, and the arc-shaped notch 42c is formed.

As shown in fig. 6, when the die is closed, an arc opening is formed on the copper sheet by the T-shaped boss 33a and the arc-shaped outer protrusion 33b, and the arc opening contacts with the bent end of the column foot 42, so that the arc notch 42c is formed on the column foot 42.

Optimized, 45 bending die 34 includes first bending groove 34a and first punching press platform 34b, the tank bottom surface of die recess 30 is opened along bottom surface width direction has first bending groove 34a, be equipped with in first bending groove 34a first punching press platform 34b, first punching press platform 34 b's cross section is the isosceles trapezoid structure, just two hypotenuses of first punching press platform 34b are 45 with the contained angle on base.

The two side edges of the top surface of the first stamping platform 34b are respectively and fixedly connected with the two side edges of the first bending groove 34a in the width direction, and the first stamping platform 34b divides the first bending groove 34a into a first stamping groove 34c and a second stamping groove 34 d.

The 45 ° bent portion 24 includes a first punch block 24a and a second punch block 24b, the first punch block 24a corresponds to the first punch groove 34c in position and matches in shape, and the second punch block 24b corresponds to the second punch groove 34d in position and matches in shape.

When the upper die holder 10 is clamped to the lower die holder 20, the first punch block 24a is inserted into the first punch groove 34c, and the second punch block 24b is inserted into the second punch groove 34d, so as to bend the column foot 42 that is not bent by 45 °.

Preferably, the 90-degree bending die 35 includes a second bending groove 35a and a second punching table 35b, the bottom surface of the die groove 30 is provided with the second bending groove 35a along the bottom surface width direction, the second bending groove 35a is provided with the second punching table 35b, the second punching table 35b is a rectangular table, two side edges of the second punching table 35b in the width direction are respectively fixedly connected with two side edges of the second bending groove 35a in the width direction, and the second punching table 35b divides the second bending groove 35a into a third punching groove 35c and a fourth punching groove 35 d.

The 90-degree bending portion 25 comprises a third punching block 25a and a fourth punching block 25b, the third punching block 25a corresponds to the third punching groove 35c in position and is matched in shape, and the fourth punching block 25b corresponds to the fourth punching groove 35d in position and is matched in shape.

When the upper die holder 10 is matched with the lower die holder 20, the third press block 25a is inserted into the third press groove 35c, and the fourth press block 25b is inserted into the fourth press groove 35d, so as to bend the column base 42 bent by 45 ° to 90 °.

As shown in fig. 6, 7, 8, 9 and 3, the top surface of the first stamping platform 34b is used as a stamping plate for stamping a copper sheet, and the upper die holder 10 presses down to make the first stamping block 24a enter the first stamping groove 34c and the second stamping block 24b enter the second stamping groove 34d, and further presses down the two sides of the copper sheet to bend the horizontal column foot 42, and since the cross section of the first stamping block 34b is isosceles trapezoid and the included angle between the oblique side and the bottom side is 45 °, the column foot 42 can be bent to 45 °.

Similarly, the supporting platform 40 can be prepared by bending the 45-degree column base 42 to 90 degrees through the mutual matching of the third stamping block 25a and the third stamping groove 35c and the fourth stamping block 25b and the fourth stamping groove 35 d.

Preferably, the cutting knife 36 is a trapezoidal cutting block, and the cutting portion 26 is a trapezoidal cutting groove matched with the trapezoidal cutting block.

When the upper die holder 10 and the lower die holder 20 are assembled, the trapezoidal cutting blocks are inserted into the trapezoidal cutting grooves, and the supporting table 40 is cut off from the copper strip.

Through the design, the trapezoid cutting blocks are matched with the trapezoid cutting grooves, and the supporting table 40 can be cut off from the copper strip under the pressing action of the upper die base 10, so that the collection of products is realized.

Preferably, the top surface of the lower die holder 20 is sequentially provided with a plurality of mounting grooves 27 along the feeding direction of the copper strip, a spring 27a is vertically arranged in each mounting groove 27, a mounting column 27b is fixed at the upper end of each spring 27a, and mounting column grooves 37 corresponding to the mounting columns 27b one by one are formed in the bottom of the die stamping groove 30.

The mounting post grooves 37 are symmetrically arranged along the center line of the width direction of the die groove 30, a placing groove 27c for placing the copper strip is arranged on the outer peripheral surface of each mounting post 27b, and the side edges of the copper strip are movably placed and mounted on the mounting posts 27b after being placed into the placing grooves 27c on the corresponding sides.

When the upper die holder 10 and the lower die holder 20 are assembled, the mounting posts 27b are compressed, and the copper strip is in contact with the surface of the lower die holder 20.

As shown in fig. 10 and 11, the copper sheet to be processed can be prevented from being placed on the placement groove 27c, and under the action of pressing down by the upper die holder 10, the top end of the mounting post 27b is inserted into the mounting post groove 37 and contacts with the groove bottom of the mounting post groove 37, and during the continuous pressing down process of the upper die holder 10, the spring 27a is compressed to press down the mounting post 27b, so that the copper sheet on the placement groove 27c is pressed down until the copper sheet contacts with the top surface of the lower die holder 20, and then goes into and out of the die for processing. Through the design, the contact between the copper sheet and each processing die can be reduced, the contact can be realized only when the processing is needed, the abrasion of the copper sheet is reduced, the processing die can not be contacted in the process of forward movement of the copper sheet, the probability of copper sheet deviation is reduced, and the processing precision is improved.

Preferably, the bottom of the die groove 30 is sequentially provided with conical positioning punch pins 38 at equal intervals along the copper strip feeding direction, the conical positioning punch pins 38 are symmetrically arranged along the center line of the width direction of the die groove 30, and the surface of the lower die base 20 is provided with positioning holes 28 corresponding to the conical positioning punch pins 38 in position one to one.

As shown in fig. 1, 2 and 3, firstly, the conical positioning punch pins 38 punch holes in the copper sheet in the pressing process under the action of the upper die holder 10, because the copper sheet has a constant advancing speed, that is, the copper sheet advances at the same distance each time, and because the conical positioning punch pins 38 are sequentially arranged at equal intervals along the copper sheet feeding direction and symmetrically arranged along the center line of the width direction of the die groove 30, the conical positioning punch pins 38 located in the area behind the first row of conical positioning punch pins 38 are correspondingly inserted into the holes in the copper sheet and inserted into the positioning holes 28 at the corresponding positions each time the copper sheet advances, and when the copper sheet slightly deviates, the copper sheet is corrected by the conical positioning punch pins 38 in each row, thereby ensuring that the copper sheet does not deviate, and improving the die accuracy of the product.

In this embodiment, the conical positioning punch pin 38 is arranged on the inner side of the mounting column groove 37, and through such a design, the conical positioning punch pin 38 can be ensured to accurately punch holes on the copper sheet, so that the problem that the conical positioning punch pin 38 cannot punch holes due to the fact that the setting position of the conical positioning punch pin is larger than the width of the copper sheet is avoided.

To sum up, the utility model provides a brace table stamping die has following technological effect:

(1) the utility model discloses on same utensil stamping die, set up a plurality of punching press chambeies, collect a plurality of stamping process, make the processing of brace table 40 need not use a plurality of moulds and carry out a plurality of stamping process respectively, great reduction manufacturing cost, and also avoided carrying out the poor problem of product precision that a lot of punching presses exist through a plurality of moulds.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (10)

1. A supporting table stamping die is characterized in that: the die comprises an upper die holder (10) and a lower die holder (20), wherein the upper die holder (10) and the lower die holder (20) are used for forming a support table (40) after die assembly;

the supporting table (40) comprises a main body (41) and column bases (42) positioned on two sides of the main body (41), an included angle between the column bases (42) and the corresponding side edge of the main body (41) is 90 degrees, M-shaped notches (42a) are formed in the column bases (42), rectangular platforms (42b) are arranged on the inner sides of bending parts of the M-shaped notches (42a), and arc-shaped notches (42c) are formed in the ends, close to the end part of the main body (41), of the bending ends of the column bases (42);

a die groove (30) is formed in the bottom surface of the upper die base (10) along the length direction of the bottom surface, and a first blanking die (31), a second blanking die (32), a third blanking die (33), a 45-degree bending die (34), a 90-degree bending die (35) and a cutting knife (36) are sequentially arranged on the bottom surface of the bottom of the die groove (30) along the feeding direction of the copper strip;

the top surface of the lower die holder (20) is respectively provided with a first blanking part (21), a second blanking part (22), a third blanking part (23), a 45-degree bending part (24), a 90-degree bending part (25) and a cutting part (26) which are correspondingly matched with the first blanking die (31), the second blanking die (32), the third blanking die (33), the 45-degree bending die (34), the 90-degree bending die (35) and the cutting knife (36) one by one;

the first blanking die (31) and the first blanking part (21) are matched with each other for forming the rectangular table (42b), the second blanking die (32) and the second blanking part (22) are matched with each other for forming the M-shaped notch (42a), and the third blanking die (33) and the third blanking part (23) are matched with each other for forming the arc-shaped notch (42 c);

the 45-degree bending die (34) and the 45-degree bending part (24) are matched with each other to bend an unbent column base (42) by 45 degrees, the 90-degree bending die (35) and the 90-degree bending part (25) are matched with each other to bend the column base (42) bent by 45 degrees to 90 degrees, and the cutting knife (36) and the cutting part (26) are matched with each other to cut the support table (40) off the copper strip.

2. A support table stamping die as claimed in claim 1, wherein: the first blanking die (31) is a rectangular boss, and the first blanking part (21) is a rectangular groove matched with the rectangular boss;

the number of the rectangular bosses is two, and the rectangular bosses are symmetrically arranged along the center line of the width direction of the stamping die groove (30);

when the upper die holder (10) and the lower die holder (20) are assembled, the rectangular boss is inserted into the rectangular groove, and the rectangular table (42b) is formed.

3. A support table stamping die as claimed in claim 1, wherein: the second blanking die (32) is an M-shaped boss, and the second blanking part (22) is an M-shaped groove matched with the M-shaped boss;

the number of the M-shaped bosses is two, and the M-shaped bosses are symmetrically arranged along the center line of the width direction of the punch die groove (30);

when the upper die holder (10) and the lower die holder (20) are assembled, the M-shaped boss is inserted into the M-shaped groove, and the M-shaped notch (42a) is formed.

4. A support table stamping die as claimed in claim 3, wherein: the bottom surface of the groove bottom of the die groove (30) is further provided with an M-shaped placing groove (39), the M-shaped placing grooves (39) are symmetrically arranged along the central line of the width direction of the die groove (30), and the M-shaped placing grooves (39) are located between the second blanking die (32) and the third blanking die (33) and have the same structure as the M-shaped grooves;

when the upper die holder (10) is matched with the lower die holder (20), the formed M-shaped notch (42a) is inserted into the corresponding M-shaped placing groove (39).

5. A support table stamping die as claimed in claim 1, wherein: the third blanking die (33) is formed by integrally forming a T-shaped boss (33a) and an arc-shaped outer convex block (33b), wherein the arc-shaped outer convex block (33b) is arranged at one end, away from the 45-degree bending die (34), of the bottom of the T-shaped boss (33a), and the third blanking portion (23) and the third blanking die (33) are structurally matched with each other to form a groove;

the number of the third blanking dies (33) is two, and the third blanking dies are symmetrically arranged along the center line of the width direction of the die groove (30);

when the upper die holder (10) and the lower die holder (20) are matched, the third blanking die (33) is inserted into the groove, and the arc-shaped notch (42c) is formed.

6. A support table stamping die as claimed in claim 1, wherein: the 45-degree bending die (34) comprises a first bending groove (34a) and a first punching table (34b), the first bending groove (34a) is formed in the bottom surface of the bottom of the die groove (30) along the width direction of the bottom, the first punching table (34b) is arranged in the first bending groove (34a), the cross section of the first punching table (34b) is of an isosceles trapezoid structure, and the included angle between two oblique edges of the first punching table (34b) and the bottom edge is 45 degrees;

two side edges of the top surface of the first stamping platform (34b) are respectively and fixedly connected with two side edges of the first bending groove (34a) in the width direction, and the first stamping platform (34b) divides the first bending groove (34a) into a first stamping groove (34c) and a second stamping groove (34 d);

the 45-degree bent part (24) comprises a first stamping block (24a) and a second stamping block (24b), the first stamping block (24a) corresponds to the first stamping groove (34c) in position and is matched in shape, and the second stamping block (24b) corresponds to the second stamping groove (34d) in position and is matched in shape;

when the upper die holder (10) is matched with the lower die holder (20), the first stamping block (24a) is inserted into the first stamping groove (34c), and the second stamping block (24b) is inserted into the second stamping groove (34d) and used for bending the column foot (42) which is not bent by 45 degrees.

7. A support table stamping die as claimed in claim 1, wherein: the 90-degree bending die (35) comprises a second bending groove (35a) and a second punching table (35b), the second bending groove (35a) is formed in the bottom surface of the bottom of the die groove (30) along the width direction of the bottom, the second punching table (35b) is arranged in the second bending groove (35a), the second punching table (35b) is a rectangular table, two side edges in the width direction of the second punching table (35b) are fixedly connected with two side edges in the width direction of the second bending groove (35a), and the second punching table (35b) divides the second bending groove (35a) into a third punching groove (35c) and a fourth punching groove (35 d);

the 90-degree bent part (25) comprises a third stamping block (25a) and a fourth stamping block (25b), the third stamping block (25a) corresponds to the third stamping groove (35c) in position and is matched in shape, and the fourth stamping block (25b) corresponds to the fourth stamping groove (35d) in position and is matched in shape;

when the upper die holder (10) is matched with the lower die holder (20), the third stamping block (25a) is inserted into the third stamping groove (35c), and the fourth stamping block (25b) is inserted into the fourth stamping groove (35d) and is used for bending the column foot (42) bent by 45 degrees to 90 degrees.

8. A support table stamping die as claimed in claim 1, wherein: the cutting knife (36) is a trapezoidal cutting block, and the cutting part (26) is a trapezoidal cutting groove matched with the trapezoidal cutting block;

when the upper die holder (10) and the lower die holder (20) are assembled, the trapezoidal cutting blocks are inserted into the trapezoidal cutting grooves, and the supporting table (40) is cut off from the copper strip.

9. A support table stamping die as claimed in claim 1, wherein: the top surface of the lower die holder (20) is sequentially provided with a plurality of mounting grooves (27) along the copper strip feeding direction, springs (27a) are vertically arranged in the mounting grooves (27), mounting columns (27b) are fixed at the upper ends of the springs (27a), and mounting column grooves (37) corresponding to the mounting columns (27b) in position one by one are formed in the bottoms of the stamping die grooves (30);

the mounting column grooves (37) are symmetrically arranged along the central line of the width direction of the stamping die groove (30), a placing groove (27c) for placing the copper strip is formed in the peripheral surface of each mounting column (27b), and the side edges of the copper strip are movably placed and mounted on the mounting columns (27b) after being placed into the placing grooves (27c) on the corresponding sides;

when the upper die holder (10) and the lower die holder (20) are assembled, the mounting columns (27b) are compressed, and the copper strip is made to contact the surface of the lower die holder (20).

10. A support table stamping die as claimed in claim 1, wherein: the copper strip punching die is characterized in that conical positioning punching needles (38) are sequentially arranged on the bottom of the die groove (30) at equal intervals along the copper strip feeding direction, the conical positioning punching needles (38) are symmetrically arranged along the central line of the width direction of the die groove (30), and positioning holes (28) corresponding to the conical positioning punching needles (38) in position one to one are formed in the surface of the lower die base (20).

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