CN215845148U - Integral type ladder crane span structure stamping die - Google Patents

Abstract

The utility model relates to an integrated ladder type bridge stamping die, which comprises an upper die and a lower die which can be vertically opened and closed, wherein the upper die comprises an upper die base, an upper padding plate, an upper clamping plate, a stop plate and a stripper plate, a plurality of first drawing blocks and second drawing blocks are arranged between the upper padding plate and the upper clamping plate, an upper cutter and a plurality of punches are arranged in the upper clamping plate, the stop plate and the stripper plate, a through hole stamping cutter penetrating through the stripper plate is arranged at the bottom of the upper clamping plate, the lower die comprises a lower die plate, a lower padding plate, a lower clamping plate and a lower die base, lower die blocks are arranged in the lower die plate and the lower padding plate, a third drawing block is arranged between the lower padding plate and the lower clamping plate, continuous feeding can be carried out, various specifications, different hole sites, hole patterns, step through holes, stamping positions, square ribs, trademark shapes, positions and structural section bars can be integrally processed and cut at one time according to be beneficial to subsequent stamping ribs at a ladder level, and a stamping through hole section bar can be used as a connecting plate to connect two integrated bridges to be continuously laid, in order to reduce production costs.

Description

Integral type ladder crane span structure stamping die

Technical Field

The utility model relates to an integrated ladder type bridge stamping die, and belongs to the technical field of bridge dies.

Background

The ladder type cable bridge is a device for intensively installing cables, is particularly suitable for laying high-voltage and low-voltage power cables, comprises ladder sides with two symmetrical sides, wherein cross arms are fixed at the bottoms in the symmetrical ladder sides, the two ends of each cross arm are fixed on the ladder sides by screws or welded and fixed to the ladder sides to form the cable bridge, and after long-term use, the phenomena of inconnection such as screw thread loosening, welding seam corrosion and the like are attacked, so that the service life and the application safety of the bridge are influenced, and the integral type bridge is beneficial to solving the problems.

Ladder crane span structure relates to in the course of working and punches the connecting hole on the section bar board through stamping die, strengthen the square rib, structures such as trade mark, it is favorable to increasing crane span structure bottom load to punch the lacing wire on the interval step of cross arm, however when directly punching and drawing because lacing wire marginal material stress influence leads to the lacing wire to punch and draw highly limited, lacing wire shape and load intensity have been restricted, simultaneously lack among the prior art comprehensive mould and process as required to the crane span structure section bar board of different specifications and demand position, fixed length cutting is in order to control crane span structure length specification, need carry out stamping machine many times, tear open and trade corresponding mould and transport cutting processing, it is great longer to lead to equipment line occupation space, equipment input cost is great, the section bar shifts, processing, it is longer with mould change debugging time, influence machining efficiency and manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides an integrated ladder type bridge stamping die which can continuously feed materials, comprehensively machine and form and cut bridge section plates with different specifications, different hole positions, hole patterns, step through holes, stamping positions, square ribs, trademark shapes, positions and structures according to requirements at one time, is beneficial to improving the subsequent stamping rib height and load performance of the step, and can be used as a connecting plate for connecting two integrated bridges for continuous laying so as to reduce the production cost.

The utility model is realized by the following technical scheme:

an integrated ladder type bridge stamping die comprises an upper die and a lower die which can be vertically opened and closed, wherein the upper die comprises an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate which are sequentially arranged from top to bottom;

the lower die comprises a lower die plate, a lower backing plate, a lower clamp plate and a lower die base which are sequentially arranged from top to bottom, wherein a cutter supporting plate which is arranged in a staggered manner with the upper cutter is arranged on the lower die plate, a plurality of lifting floating lower modules are arranged in the lower die plate and the lower backing plate, and a plurality of third drawing blocks which reciprocate on the horizontal plane left and right and are arranged corresponding to the lower modules are arranged between the lower backing plate and the lower clamp plate;

through hole discharging openings corresponding to the through hole punching cutters are formed in the lower template, the lower cushion plate, the lower clamping plate and the lower die base, and a plurality of elastic rods are arranged between the upper cushion plate and the upper clamping plate as well as between the lower cushion plate and the lower clamping plate as well as between the upper cushion plate and the lower die base;

a plurality of second springs are arranged between the upper cutter and the plurality of punches and the stop plate, the second springs are respectively positioned inside the upper cutter and outside the punches, second guide holes which are arranged corresponding to the upper cutter and the punches are respectively arranged on the upper clamping plate, the stop plate and the stripper plate, and stripping holes which are arranged corresponding to the punches are arranged on the lower die plate, the lower backing plate, the lower clamping plate and the lower die base;

the upper die holder and the lower die holder are respectively provided with a plurality of cylinders connected with the first pumping block, the second pumping block or the third pumping block;

the plurality of punches comprise connecting hole punches and 7-shaped buckle punches which are arranged in a row or a column, waist-shaped holes corresponding to the connecting hole punches or first waist-shaped openings corresponding to the 7-shaped buckle punches are arranged on the second drawing block, and a plurality of first bosses which are staggered with the waist-shaped holes or are arranged corresponding to the first waist-shaped openings are arranged at the bottom of the second drawing block;

the plurality of lower modules comprise one or a plurality of trademark modules or square rib modules arranged in rows, a plurality of grooves are formed in the bottom of each lower module, a second waist-shaped opening corresponding to the trademark modules or the square rib modules is formed in the third drawing block, and a plurality of second bosses matched with the grooves in shape are formed in the top of the third drawing block;

the through-hole cutter is of a cubic structure, the bottom surface of the through-hole cutter is obliquely arranged with the side wall, a material guide plate corresponding to the discharge opening of the through-hole is arranged at the bottom of the lower die base, an upper workbench is arranged at the top of the upper die base, a lower workbench is arranged at the bottom of the lower die base, the material guide plate is of a V-shaped structure, and a blanking hole corresponding to the material guide plate is formed in the lower workbench.

The utility model has the beneficial effects that:

(1) the through hole stamping knife protrudes out of the stripper plate through the part which is adjacent to the bottom of the upper clamping plate and penetrates through the stop plate and the stripper plate, when the upper die and the lower die are closed, the through hole stamping knife punches out a through hole of the bridge profile plate through the obliquely arranged bottom surface, the punched profile falls down from discharge openings of corresponding through holes of the lower die plate, the lower backing plate, the lower clamping plate and the lower die base, and is intensively guided into a blanking hole of the lower working belt through the material guide plate so as to be intensively collected, and the materials between the adjacent through holes form bridge steps along with the forward movement and continuous stamping of the profile plate;

(2) the cylinder rod of the cylinder drives the first pumping block, the second pumping block and the third pumping block to reciprocate in the front-back or left-right direction of the horizontal plane, so that the first boss of the second pumping block abuts against the punch, the punch floats downwards and protrudes out of the stripper plate, and various hole patterns such as a connecting hole punch, a 7-shaped buckle punch and the like are punched on the section plate; a second boss of the third pumping block and a lower module groove correspondingly float upwards to lift the second boss, and the top of the lower module protrudes out of the lower template to punch a corresponding trademark or square rib shape at the required position of the ladder edge of the profile plate; after the punching is finished, the first pumping block abuts against the lower cutter, the upper cutter protrudes out of the stripper plate in a downward floating mode, and is closed with a fixed cutter supporting plate arranged on the lower template in a staggered mode, the continuously advancing section plates are cut in a fixed length mode, and the specification requirements are met;

to sum up, the stamping die can be used for continuously feeding, carrying out one-time comprehensive processing molding and fixed-length cutting on bridge section plates with different specifications, different hole sites, hole patterns, step through holes, stamping positions, square ribs, trademark shapes, positions and structures according to requirements, can meet the processing requirements of various section plates without frequently replacing the die, obviously saves equipment, processing cost and equipment occupation space, avoids frequent replacement debugging and bridge process transfer, obviously improves the processing efficiency of bridges, realizes stable production in batches, can bend the stamped section plates into an integral U-shaped ladder structure, avoids the defect of split type connection, forms a bridge step structure by punching the through holes first, is favorable for improving the subsequent punching rib height and load-carrying performance of the step, is convenient for collecting punched section materials, and can be used as a connecting plate to connect two bridges for continuous laying, in order to reduce production costs.

Drawings

FIG. 1 is a top view of the present invention.

FIG. 2 is a top view of the present invention.

FIG. 3 is a side view of the present invention.

Fig. 4 is a front view structural diagram of the present invention.

FIG. 5 is a top view of the upper mold of the present invention.

FIG. 6 is a view showing the structure of the upper mold base according to the present invention.

Fig. 7 is a view showing the construction of the upper mat according to the present invention.

Fig. 8 is a view showing the construction of the upper splint of the present invention.

FIG. 9 is a view of the stopper plate of the present invention.

Fig. 10 is a structural view of the stripper plate of the present invention.

FIG. 11 is a top view of the lower mold of the present invention.

FIG. 12 is a view showing the structure of the lower plate of the present invention.

Fig. 13 is a view showing the structure of the lower mat according to the present invention.

Fig. 14 is a view showing the construction of the lower splint of the present invention.

FIG. 15 is a view showing the structure of the lower base of the present invention.

Fig. 16 is a top and front view block diagram of the punch of the present invention.

Fig. 17 is a top and front view of the second drawer of the present invention.

Fig. 18 is a top and front view of a third drawer of the present invention.

FIG. 19 is a top and front view of the lower module of the present invention.

Fig. 20 is a structural view of a bridge profile processed by the present invention.

Fig. 21 is a view of the bridge connection structure processed by the present invention.

The labels in the figure are: the upper die 1 and the lower die 2, the upper die holder 11, the upper backing plate 12, the upper clamping plate 13, the stop plate 14 and the stripper plate 15, the first stripping block 3, the second stripping block 4, the upper cutter 5, the punch 6, the through hole punching cutter 7, the lower die plate 21, the lower backing plate 22, the lower clamping plate 23 and the lower die holder 24, the cutter supporting plate 8, the lower die block 9, the third stripping block 10, the cylinder 16, the elastic rod 25, the first guide hole 26, the first guide post 27, the first spring 28, the second guide post 29, the third guide post 30, the second spring 31, the second guide hole 32, the stripper hole 33, the connecting hole punch 61, the 7-shaped buckle punch 62, the kidney-shaped hole 34, the first kidney-shaped opening 35, the first boss 36, the trademark module 91, the square rib module 92, the groove 37, the second kidney-shaped opening 38, the second boss 39, the section plate 44, the connecting holes 45, the steps 46, 49, the 7-shaped buckle holes 50, the trademark module 51, the square rib 52 and the connecting plate 17, the through-hole discharging opening 18, the material guide plate 19, the upper workbench 20, the lower workbench 41, the blanking hole 42, the ladder edge 47, the through-hole section bar 48 and the preset hole 53.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

An integrated ladder type bridge stamping die comprises an upper die 1 and a lower die 2 which can be vertically opened and closed, wherein the upper die 1 comprises an upper die base 11, an upper padding plate 12, an upper clamping plate 13, a stop plate 14 and a stripper plate 15 which are sequentially arranged from top to bottom, a plurality of first stripping blocks 3 and second stripping blocks 4 which can reciprocate back and forth or left and right on a horizontal plane are arranged between the upper padding plate 12 and the upper clamping plate 13, upper cutters 5 which can lift and float and are arranged corresponding to the first stripping blocks 3 and a plurality of punches 6 which are arranged corresponding to the second stripping blocks 4 are arranged in the upper clamping plate 13, the stop plate 14 and the stripper plate 15, and at least one through hole stamping knife 7 which penetrates through the stop plate 14 and the stripper plate 15 is arranged at the bottom of the upper clamping plate 13;

the lower die 2 comprises a lower die plate 21, a lower cushion plate 22, a lower clamping plate 23 and a lower die base 24 which are sequentially arranged from top to bottom, wherein a cutter supporting plate 8 which is staggered with the upper cutter 5 is arranged on the lower die plate 21, a plurality of lifting floating lower die blocks 9 are arranged in the lower die plate 21 and the lower cushion plate 22, and a plurality of third pumping blocks 10 which reciprocate on the horizontal plane and are arranged corresponding to the lower die blocks 9 are arranged between the lower cushion plate 22 and the lower clamping plate 23;

through hole discharge openings 18 corresponding to the through hole punching knives 7 are formed in the lower template 21, the lower cushion plate 22, the lower clamping plate 23 and the lower die base 24, and a plurality of elastic rods 25 are arranged between the upper cushion plate 12 and the upper clamping plate 13 and the stop plate 14 and between the lower cushion plate 22 and the lower clamping plate 23 and the lower die base 24;

a plurality of first guide holes 26 are formed in the upper die holder, first guide posts 27 connected with the lower die holder 24 are arranged in the first guide holes 26, first springs 28 positioned between the upper die holder and the lower die holder 24 are arranged outside the first guide posts 27, second guide posts 29 penetrating through the upper clamping plate 13, the stop plate 14, the stripper plate 15 and the lower die plate 21 are arranged on the upper backing plate 12, and third guide posts 30 penetrating through the lower clamping plate 23, the lower backing plate 22 and the lower die plate 21 are arranged on the lower die holder 24;

a plurality of second springs 31 are arranged between the upper cutter 5 and the plurality of punches 6 and the stop plate 14, the second springs 31 are respectively positioned inside the upper cutter 5 and outside the punches 6, second guide holes 32 corresponding to the upper cutter 5 and the punches 6 are respectively arranged on the upper clamp plate 13, the stop plate 14 and the stripper plate 15, and stripper holes 33 corresponding to the punches 6 are arranged on the lower die plate 21, the lower backing plate 22, the lower clamp plate 23 and the lower die holder 24;

the upper die holder 11 and the lower die holder 24 are respectively provided with a plurality of air cylinders 16 connected with the first pumping block 3, the second pumping block 4 or the third pumping block 10;

the plurality of punches 6 comprise connecting hole punches 61 and 7-shaped buckle punches 62 which are arranged in a row or a column, waist-shaped holes 34 which are arranged corresponding to the connecting hole punches 61 or first waist-shaped openings 35 which are arranged corresponding to the 7-shaped buckle punches 62 are arranged on the second drawing block 4, and a plurality of first bosses 36 which are staggered with the waist-shaped holes 34 or are arranged corresponding to the first waist-shaped openings 35 are arranged at the bottom of the second drawing block 4;

the lower modules 9 comprise one or a plurality of trademark modules 91 or square rib modules 92 arranged in rows, a plurality of grooves 37 are formed in the bottom of the lower module 9, second waist-shaped openings 38 corresponding to the trademark modules 91 or the square rib modules 92 are formed in the third drawing block 10, and a plurality of second bosses 39 matched with the grooves 37 in shape are formed in the top of the third drawing block 10;

the through-hole cutter is of a cubic structure, the bottom surface of the through-hole cutter is obliquely arranged with the side wall, a material guide plate 19 corresponding to the discharge opening 18 of the through-hole cutter is arranged at the bottom of the lower die holder 24, an upper workbench 20 is arranged at the top of the upper die holder, a lower workbench 41 is arranged at the bottom of the lower die holder 24, the material guide plate 19 is of a V-shaped structure, and a blanking hole 42 corresponding to the material guide plate 19 is formed in the lower workbench 41.

The working principle of the utility model is that:

referring to the drawings: the upper workbench 20 is connected with a hydraulic lifting driving mechanism of a punching machine tool and used for driving the upper die holder 11 to move up and down and to open and close the die with the lower die holder 24, the lower workbench 41 is fixed in the punching machine tool, and when the die is opened, the first spring 28 supports the upper die holder and the lower die holder 24 and is used for controlling the floating distance between the upper die 1 and the lower die 2; the elastic rod 25 is made of elastic high-strength rubber rod material, so that the upper cushion plate 12, the upper clamp plate 13 and the stop plate 14 are in floating support, and the lower cushion plate 22, the lower clamp plate 23 and the lower die holder 24 are in floating support when the die is opened;

feeding a bridge profile plate 44 between a stripper plate 15 of an upper die 1 and a lower die plate 21 of a lower die 2 through a conveying device, when an upper die base 11 descends and is matched with a lower die base 24, compressing a first spring 28, guiding a first guide post 27 in a first guide hole 26 to ensure the stability of matching the upper die 1 and the lower die 2, guiding a second guide post 29 in a stop plate 14, the stripper plate 15 and the lower die plate 21 to move, ensuring the stability when an elastic rod 25 is pressed to reduce the distance between the upper clamp plate 13 and the stop plate 14 during matching, guiding a third guide post 30 in a lower clamp plate 23 and a lower pad plate 22 to move, and ensuring the stability of matching the lower die 2 when the elastic rod 25 is pressed to reduce the distance between the lower clamp plate 23 and the lower pad plate 22 during matching;

the punching hole of the punching die forms a bridge step function:

the through hole stamping knife 7 protrudes out of the stripper plate 15 through a preset hole 53 which is adjacent to the bottom of the upper clamping plate 13 and penetrates through the stop plate 14 and the stripper plate 15, when the upper die 1 and the lower die 2 are closed, the through hole stamping knife 7 stamps out a through hole of the bridge profile plate 44 through the obliquely arranged bottom surface, the stamped profile falls down from a corresponding through hole discharge opening 18 of the lower die plate 21, the lower backing plate 22, the lower clamping plate 23 and the lower die base 24, the material guide plate 19 is detachably connected through bolts, the material guide plate 19 is intensively guided into a blanking hole 42 of the lower working belt in a V-shaped structure so as to be intensively collected, after the die is opened, the through hole is stamped in a corresponding position along with the continuous feeding and re-closing of the profile plate 44, so that a bridge step is formed through adjacent through hole spacing materials, when a rib is stamped at the bridge step to improve the load of the bridge, the edge material stress is reduced due to the pre-stamping through hole, so that the stamping rib at the step is convenient for height and forming, thereby being beneficial to improving the loading quality of the bridge;

referring to fig. 21, the section punched by the through hole can be used as a connecting plate 17 to be connected with the connecting hole array of the bridge ladder edge, and is used for connecting the ends of two bridges to be continuously laid, so that the waste of the section is avoided, and the production cost is reduced;

the punching die has the functions of punching various hole types:

the second spring 31 can be made of a high-strength rubber sleeve or a spiral spring, the punch 6 floats on one side of the first boss 36 of the second drawing block 4 or between the adjacent first bosses 36 under the elastic support of the second spring 31, and when the upper clamping plate 13 approaches the stop plate 14 and the stripper plate 15 and the lower die plate 21 are closed, the punch 6 does not protrude out of the stripper plate 15, so that a hole pattern cannot be punched on the section plate 44;

when a cylinder rod of a cylinder 16 on the upper die base extends to drive the second pumping block 4 to move in the front-back or left-right direction of the horizontal plane, the first bosses 36 are enabled to prop each corresponding punch 6 downwards, so that the punches 6 float downwards along the second guide holes 32 and protrude out of the stripper plate 15 to punch a hole pattern on the section plate 44, and the punched hole pattern material falls down from the lower die plate 21, the lower die plate 22, the lower clamping plate 23 and the stripper holes 33 on the lower die plate so as to be discharged out of the die;

a guide rod arranged in the first kidney-shaped opening 35 or the kidney-shaped hole 34 can be arranged on the punch 6 to realize the limiting and ensure the stable supporting and running of the second pumping block 4; the connecting holes and the word buckle holes at the ladder side parts of the ladder type bridge can be respectively punched at corresponding positions through the connecting hole punching heads 61 and the word buckle punching heads 6 which are arranged in rows or rows, the punching heads 6 are arranged into specific punching shapes such as a round shape, a waist shape, a square shape, a rectangular shape and the like according to hole patterns, and the number of the punching heads 6 corresponding to each second drawing block 4 is set according to the punching requirements of the connecting holes, so that the bridge type material plates 44 with different specifications and different punching requirements can be processed according to the requirements;

stamping die's trade mark and square muscle stamping function:

when the mold is opened, the lower mold block 9 including but not limited to the trademark module 91 and the square rib module 92 is arranged correspondingly to the second boss 39 through the groove 37, so that the top of the lower mold block 9 does not protrude out of the lower mold plate 21 and does not have the trademark or the square rib shape when the mold is closed; when the cylinder rod of the cylinder 16 on the lower die holder 24 extends to drive the third pumping block 10 to move in the left-right direction of the horizontal plane, the third pumping block 10 is arranged in a staggered manner by the second boss 39 and the groove 37 of the lower die block 9 to float up and lift the second boss 39, so that when the die is closed, the upper clamping plate 13 approaches to the stop plate 14, the top of the lower die block 9 protrudes out of the lower die plate 21 to punch out a corresponding trademark or square rib shape at a required position of a ladder edge of the profile plate 44, and the effects of marking a bridge and improving the strength of the ladder edge of the bridge are achieved, and the processing requirements of bridge profile plates 44 of various specifications and positions are met;

fixed-length cutting function of stamping die:

an upper cutter 5 in the upper die 1 floats upwards in the upper clamping plate 13, the stop plate 14 and the stripper plate 15 through a second spring 31, and when the first drawing block 3 and the upper cutter 5 are dislocated, the bottom of the upper cutter 5 does not protrude from the lower die plate 21 and does not cut during die assembly, so that continuous stamping and advancing of the section plate 44 are ensured; when cylinder rods of a plurality of cylinders 16 on the upper die holder extend to drive a plurality of first pumping blocks 3 to move in the front-back direction of a horizontal plane, the lower cutter is abutted, so that the upper cutter 5 floats downwards in the upper clamping plate 13, the stop plate 14 and the stripper plate 15, and when die assembly is carried out, the tangent plane of the upper cutter 5 protrudes out of the stripper plate 15 and is closed with the fixed cutter supporting plate 8 arranged on the lower die plate 21 in a staggered manner, and the continuously advancing section bar 44 is cut at a fixed length, so that the requirement of the total length specification of each bridge is met;

referring to fig. 20, bridge section plates 44 of different specifications are formed by punching lacing wires and edge ribs on the steps, various hole patterns and trademarks on the ladder edges and square ribs, and cutting and processing at fixed length, and the bridge section plates 44 can form an integrated U-shaped ladder-type bridge by bending two sides;

to sum up, the bridge profile plate 44 with different specifications, different hole sites, hole patterns, step through holes, stamping positions, square ribs, trademark shapes, positions and structures can be subjected to one-time comprehensive processing molding and fixed-length cutting by adopting the stamping die according to requirements, the processing of various profile plates 44 can be met without frequently replacing the die, the equipment, the processing cost and the occupied space of the equipment are obviously saved, frequent replacement and debugging and bridge process transfer are avoided, the processing efficiency of the bridge is obviously improved, the batch stable production is realized, the stamped profile plate 44 can be bent into an integral U-shaped ladder-shaped bridge structure, the defect of split connection is avoided, the bridge structure is formed by punching the through holes first, the subsequent punching rib height and the load-carrying performance at the step are favorably improved, the punched through hole profile 48 is convenient to collect and discharge, and can be used as a connecting plate 17 to connect two bridges for continuous laying, in order to reduce production costs.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Claims (10)

1. An integrated ladder type bridge stamping die comprises an upper die and a lower die which can be vertically opened and closed, and is characterized in that the upper die comprises an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate which are sequentially arranged from top to bottom, a plurality of first stripping blocks and second stripping blocks which can reciprocate back and forth or left and right on a horizontal plane are arranged between the upper base plate and the upper clamping plate, upper cutters which are lifted and floated and are arranged corresponding to the first stripping blocks and a plurality of punches which are arranged corresponding to the second stripping blocks are arranged in the upper clamping plate, the stop plate and the stripper plate, and at least one through hole stamping knife which penetrates through the stop plate and the stripper plate is arranged at the bottom of the upper clamping plate;

the lower die comprises a lower die plate, a lower backing plate, a lower clamp plate and a lower die base which are sequentially arranged from top to bottom, wherein a cutter supporting plate which is arranged in a staggered manner with the upper cutter is arranged on the lower die plate, a plurality of lifting floating lower modules are arranged in the lower die plate and the lower backing plate, and a plurality of third drawing blocks which reciprocate on the horizontal plane left and right and are arranged corresponding to the lower modules are arranged between the lower backing plate and the lower clamp plate;

the lower die plate, the lower cushion plate, the lower clamping plate and the lower die base are all provided with through hole discharge openings corresponding to the through hole punching cutters, and a plurality of elastic rods are arranged between the upper cushion plate and the upper clamping plate and between the lower cushion plate and the lower die base.

2. The stamping die for the integrated ladder-shaped bridge frame as claimed in claim 1, wherein a plurality of first guide holes are formed in the upper die base, first guide posts connected with the lower die base are arranged in the first guide holes, and first springs located between the upper die base and the lower die base are arranged outside the first guide posts.

3. The stamping die for the integrated ladder-type bridge frame of claim 1, wherein a second guide column penetrating through the upper clamping plate, the stop plate, the stripper plate and the lower die plate is arranged on the upper base plate, and a third guide column penetrating through the lower clamping plate, the lower base plate and the lower die plate is arranged on the lower die base.

4. The stamping die for the integrated ladder-type bridge frame as claimed in claim 1, wherein a plurality of second springs are arranged between the upper cutter and the plurality of punches and the stop plate, the second springs are respectively located inside the upper cutter and outside the punches, second guide holes corresponding to the upper cutter and the punches are formed in the upper clamping plate, the stop plate and the stripper plate, and stripper holes corresponding to the punches are formed in the lower die plate, the lower backing plate, the lower clamping plate and the lower die base.

5. The stamping die for the integrated ladder-shaped bridge frame as claimed in claim 1, wherein the upper die base and the lower die base are respectively provided with a plurality of cylinders connected with the first drawing block, the second drawing block or the third drawing block.

6. The stamping die for the integral ladder-shaped bridge frame as claimed in claim 1, wherein the plurality of punches comprise connecting hole punches and 7-shaped buckle punches arranged in a row or a column, the second drawing block is provided with a kidney-shaped hole corresponding to the connecting hole punch or a first kidney-shaped opening corresponding to the 7-shaped buckle punch, and a plurality of first bosses staggered with the kidney-shaped hole or corresponding to the first kidney-shaped opening are arranged at the bottom of the second drawing block.

7. The stamping die for the integral ladder-shaped bridge frame as claimed in claim 1, wherein the plurality of lower mold blocks comprise one or more trademark modules or square rib modules arranged in rows, the lower mold blocks are provided with a plurality of grooves at the bottom thereof, the third drawer block is provided with second kidney-shaped openings corresponding to the trademark modules or the square rib modules, and the top of the third drawer block is provided with a plurality of second bosses cooperating with the grooves.

8. The stamping die for the integral ladder-shaped bridge frame as claimed in claim 1, wherein the through hole cutters are in a cubic structure, and the bottom surfaces and the side walls are obliquely arranged.

9. The stamping die for the integral type ladder-shaped bridge frame according to any one of claims 1 to 8, wherein a material guide plate corresponding to the through hole discharge opening is arranged at the bottom of the lower die base.

10. The stamping die for integrated ladder-shaped bridges as claimed in claim 9, wherein an upper working table is disposed on the top of the upper die base, a lower working table is disposed on the bottom of the lower die base, the material guiding plate is in a V-shaped structure, and a blanking hole corresponding to the material guiding plate is disposed on the lower working table.

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