CN216501803U - High-strength light stamping die for ladder type bridge - Google Patents

Abstract

The utility model relates to a high-strength light 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 holder, an upper padding plate, an upper clamping plate, a stop plate and a stripper plate, 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 padding plate and the upper clamping plate, a plurality of lifting floating upper cutters and a plurality of punches are arranged in the stop plate and the stripper plate, a female die is arranged at the bottom of the stripper plate, the lower die comprises a lower die plate, a lower padding plate, a lower clamping plate and a lower die holder, a cutter supporting plate is arranged on the lower die plate, lower dies are arranged in the lower die plate and the lower padding plate, the lower clamping plate or the lower die holder is connected with a male die which penetrates through the lower die plate, the high-strength light ladder type bridge stamping die can be continuously fed, and various specifications, different hole sites, hole patterns, stamping positions, pull ribs, edge ribs, square ribs, trademark shapes, positions and structural bridge type section plates can be comprehensively machined and cut at one time according to requirements, the integral processing and forming of the bridge are facilitated, and the processing efficiency and the load quality of the bridge are improved.

Description

High-strength light stamping die for ladder type bridge

Technical Field

The utility model relates to a high-strength light stamping die for a ladder-type bridge, and belongs to the technical field of bridge dies.

Background

The crane span structure is the indispensable device when cable installation, and the cable crane span structure divide into structures such as slot type, tray formula and ladder formula, comprises support, trailing arm and installation annex etc. and its effect can be with the orderly range of cable inside, lead to another equipment from an equipment, guarantees that the building is pleasing to the eye, the circuit is regular, easily lay the maintenance, according to the specification of laying the thing, the difference of size, adopts the crane span structure of different specifications to satisfy the demand of laying. A ladder type bridge in the prior art generally comprises a cross arm with a plurality of steps at the bottom and ladder sides vertical to the two sides of the cross arm, and the ladder type bridge assembled by adopting ladder sides for welding or riveting is not only multiple in parts and complex in installation, but also has the problems of welding seam cleaning, corrosion in long-term application, unreliable riveting and the like, so that the overall processing efficiency of the bridge is low and the cost is high.

Can avoid split type structure drawback by the fashioned U-shaped integral type ladder crane span structure of bending, need carry out operations such as multiposition towards the connecting hole, detain the hole to the crane span structure panel before the section bar is bent, especially towards the punching rib structure when strengthening the crane span structure step structure, do not have integrated an organic whole among the prior art, and the high-efficient integrated processing stamping die who improves towards rib height, intensity in order to guarantee crane span structure light and intensity of punching rib structure, lead to machining efficiency and crane span structure shaping quality to be difficult to satisfy the demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a high-strength light stamping die for a ladder-type bridge, which can continuously feed materials, perform one-time comprehensive machining and fixed-length cutting on bridge section plates with different specifications, different hole positions, hole patterns, stamping positions, tie bars, edge ribs, square ribs, trademark shapes, positions and structures according to requirements, is favorable for integral machining and forming of the bridge, and improves the machining efficiency and the load quality of the bridge.

The utility model is realized by the following technical scheme:

a high-strength light stamping die for a ladder-type bridge 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 holder which are sequentially arranged from top to bottom, 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, the lower clamp plate or the lower die holder is connected with a male die which penetrates through the lower die plate and is correspondingly matched with the female die, a plurality of third pumping blocks which reciprocate on the horizontal plane and are arranged corresponding to the lower modules are arranged between the lower backing plate and the lower clamp plate, and a plurality of cylinders connected with the first pumping blocks, the second pumping blocks or the third pumping blocks are arranged on the upper die holder and the lower die holder;

the female die is provided with a first concave rib which is concave towards the top of the upper die and a second concave rib which is positioned in the center of the first concave rib and is concave towards the top of the upper die, the male die is provided with a first convex rib and a second convex rib which are respectively arranged corresponding to the first concave rib and the second concave rib and are convex towards the top of the lower die, and a plurality of elastic rods are respectively arranged between the upper backing plate and the upper clamping plate and between the lower backing plate and the lower die holder;

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 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 concave muscle center of second is equipped with the protruding and cross-section outline of mould bottom that makes progress and is rectangle or curved protruding muscle of third, the protruding muscle center of second is equipped with the protruding muscle of third that corresponds the protruding muscle of third and die bottom sunken downwards, the die bottom is equipped with and is located first concave muscle both sides and makes progress the convex at least one deck edge in mould bottom and presses the muscle, be equipped with the edge concave muscle that corresponds the edge and press the muscle setting on the lower bolster.

The utility model has the beneficial effects that:

(1) feeding a bridge profile plate between a stripper plate of an upper die and a lower die plate of a lower die, and when an upper die base descends and the lower die base is matched, compressing an elastic rod to reduce the distance between the lower clamping plate and the lower backing plate, enabling a male die to penetrate through and protrude out of the lower die plate, enabling a first concave rib of a female die to be matched with a first convex rib of the male die, a second concave rib to be matched with a second convex rib, and a third convex rib to be matched with a third concave rib to form a lacing wire structure with increased tensile strength and enhanced deformation resistance strength, and punching at least one layer of edge rib positioned at the edge of the lacing wire correspondingly to the edge pressing rib on the female die and the edge concave rib of the lower die plate so as to improve the deformation resistance strength of the lacing wire edge profile;

(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, but adopt this stamping die feeding in succession, to various different specifications according to the demand, different hole sites, the pass, stamping position, the lacing wire, the edge muscle, the square muscle, the trade mark shape, position and structure crane span structure section bar board carry out one time integrated processing shaping and fixed length cutting, need not frequently change the mould and can satisfy the processing of multiple type section bar board, show the machining efficiency who improves the crane span structure, realize stable production in batches, stamping forming's section bar board can be bent and be integral type U-shaped trapezoidal light structure, avoid split type connection drawback, and through high strength, increase the lacing wire of drawing high height and the load quality of edge muscle structure improvement crane span structure.

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 top view, AA direction cross-sectional view and front view of a female mold according to the present invention.

Figure 21 is a top, side and front view block diagram of the male of the utility model.

Fig. 22 is a structural view of a bridge profile 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 block 3, the second block 4, the upper cutter 5, the punch 6, the die 7, the lower die plate 21, the lower backing plate 22, the lower clamping plate 23 and the lower die holder 24, the knife supporting plate 8, the lower die block 9, the third block 10, the cylinder 16, the first concave rib 17, the second concave rib 18, the first convex rib 19 and the second convex rib 20, the elastic rod 25, the first guide hole 26, the first guide column 27, the first spring 28, the second guide column 29, the third guide column 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 kidney-shaped boss 39, the third convex rib 40, the concave rib 42, the edge concave rib 43, the section bar plate 44, the through hole 45, the step 46, the lacing wire 47, the edge rib 48, the connecting hole 49, the 7-shaped buckling hole 50, the trademark 51, the square rib 52 and the male die 53.

Detailed Description

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

A high-strength light stamping die for a ladder-type bridge 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 female die 7 is arranged at the bottom of the stripper plate 15;

the lower die 2 comprises a lower die plate 21, a lower cushion plate 22, a lower clamp plate 23 and a lower die holder 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 modules 9 are arranged in the lower die plate 21 and the lower cushion plate 22, the lower clamp plate 23 or the lower die holder 24 is connected with a male die 53 which penetrates through the lower die plate 21 and corresponds to the female die 7, a plurality of third pumping blocks 10 which reciprocate on the horizontal plane and are arranged corresponding to the plurality of lower modules 9 are arranged between the lower cushion plate 22 and the lower clamp plate 23, and a plurality of cylinders 16 which are connected with the first pumping blocks 3, the second pumping blocks 4 or the third pumping blocks 10 are arranged on the upper die holder 11 and the lower die holder 24;

the female die is provided with a first concave rib 17 which is concave towards the top of the upper die 1, and a second concave rib 18 which is positioned in the center of the first concave rib 17 and is concave towards the top of the upper die 1, the male die 53 is provided with a first convex rib 19 and a second convex rib 20 which are respectively arranged corresponding to the first concave rib 17 and the second concave rib 18 and are convex towards the top of the lower die 2, and a plurality of elastic rods 25 are respectively arranged between the upper cushion plate 12 and the upper clamp plate 13 as well as between the lower cushion plate 22 and the lower clamp plate 23 as well as between the lower die holder 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 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;

first protruding muscle 19, the protruding muscle 20 both ends lateral wall of second and both sides lateral wall all set up with terrace die 53 bottom slope, the protruding and cross-section outline in second concave muscle 18 center is equipped with the protruding and third protruding muscle 40 that is rectangle or curved of 1 bottom of mould that makes progress, the protruding muscle 20 center of second is equipped with the protruding muscle 40 of corresponding third and the sunken concave muscle 41 in 2 bottoms of bed die down, the die bottom is equipped with and is located first concave muscle 17 both sides and the convex at least one deck edge pressure muscle 42 in 1 bottom of mould that makes progress, be equipped with the edge concave muscle 43 that corresponds edge pressure muscle 42 and set up on the lower bolster 21.

The working principle of the utility model is as follows:

referring to the attached drawings, an upper die holder 11 and a lower die holder 24 are respectively fixed on a punching machine tool, the upper die holder 11 is connected with a hydraulic lifting driving mechanism of the punching machine tool and used for driving the upper die holder 11 to move up and down and open and close the lower die holder 24, and when the die is opened, a first spring 28 supports the upper die holder and the lower die holder 24 and is used for controlling the floating distance between an upper die 1 and a 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 functions of the lacing wire and the edge rib at the bridge ladder punching stage of the stamping die are as follows:

the bridge profile plate 44 forms a plurality of steps after punching through holes so as to reduce the material stress action on two sides of the steps and improve the lacing wire punching height and strength when the female die 7 and the male die 53 are combined and punched, when the die is combined, the elastic rod 25 is pressed to reduce the distance between the lower clamping plate 23 and the lower backing plate 22, so that the male die 53 passes through and protrudes out of the lower die plate 21, the first concave rib 17 of the female die is matched with the first convex rib 19 of the male die 53, the second concave rib 18 is matched with the second convex rib 20, the third convex rib 40 is matched with the third concave rib 41, the side walls at two ends and two side walls of the first convex rib 19 and the second convex rib 20 are obliquely arranged with the bottom of the male die 53, the outer contour of the second concave rib 18 is rectangular or arc, and the lacing wire structure with increased stretching height and improved deformation resistance strength is formed; when the die is opened, the elastic rod 25 returns to increase the distance between the lower clamping plate 23 and the lower backing plate 22, so that the male die 53 is embedded in the lower die plate 21 to avoid influencing the continuous advance of the section bar, and the continuous processing is facilitated;

when the die is closed, the edge ribbing 42 on the female die and the edge concave rib 43 of the lower die plate 21 correspondingly punch at least one layer of edge rib positioned at the edge of the lacing wire so as to improve the deformation resistance of the edge profile of the lacing wire;

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; through connecting hole punches 61 and 7-shaped buckle punches 62 arranged in a row or a column, connecting holes and 7-shaped buckle holes at the ladder sides of the ladder type bridge can be punched at corresponding positions respectively, the punches 6 are arranged into specific punching shapes such as round, waist-shaped, square and rectangular according to hole patterns, the number of the punches 6 corresponding to each second drawing block 4 is set according to the punching requirements of the connecting holes, so that 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. 22, bridge profile plates 44 of different specifications are formed by punching lacing wires and edge ribs on the steps, various hole patterns, trademarks and square ribs on the step edges and cutting and processing at fixed length;

to sum up, but adopt this stamping die feeding in succession, to various different specifications according to the demand, different hole sites, the pass, the punching press position, the lacing wire, the edge muscle, the square muscle, the trade mark shape, position and structure crane span structure section bar board 44 carry out one-time integrated processing shaping and fixed length cutting, need not frequently change the mould and can satisfy the processing of multiple type section bar board 44, show save equipment, processing cost and equipment occupation space, avoid frequently changing the debugging and the crane span structure process shifts, show the machining efficiency who improves the crane span structure, realize stable production in batches, stamping forming's section bar board 44 can bend and be integral type U-shaped ladder formula light structure, avoid split type connection drawback, through high strength, increase the lacing wire of drawing height and the load quality that the edge muscle structure improves the crane span structure.

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.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A high-strength light stamping die for a ladder-type bridge 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 female die is arranged at the bottom of the stripper plate;

the lower die comprises a lower die plate, a lower backing plate, a lower clamp plate and a lower die holder which are sequentially arranged from top to bottom, 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, the lower clamp plate or the lower die holder is connected with a male die which penetrates through the lower die plate and is correspondingly matched with the female die, and a plurality of third pumping blocks which reciprocate on the horizontal plane and are arranged corresponding to the lower modules are arranged between the lower backing plate and the lower clamp plate;

be equipped with the sunken first concave muscle in mould top that makes progress, be located first concave muscle center and the sunken second concave muscle in mould top that makes progress on the die, be equipped with on the terrace die and correspond first concave muscle and the setting of the concave muscle of second respectively and convex first protruding muscle in mould top and the protruding muscle of second downwards, all be equipped with a plurality of elastic rods between upper padding plate and punch holder and the backstop board, between lower bolster and lower plate and the die holder.

2. The stamping die for a high-strength light ladder-type 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 high-strength light ladder-type bridge frame according to 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 high-strength light stamping die for the 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 stripping 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 high-strength light ladder-type bridge frame as claimed in claim 1, wherein a plurality of cylinders connected with the first drawing block, the second drawing block or the third drawing block are arranged on the upper die base and the lower die base.

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

7. The stamping die for a high-strength light ladder-type bridge frame as claimed in claim 1, wherein the lower mold blocks include one or more trademark modules or square rib modules arranged in rows, the bottom of the lower mold block is provided with grooves, 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 second bosses which are matched with the grooves in shape.

8. The stamping die for a high-strength light ladder-type bridge frame as claimed in claim 1, wherein the side walls at two ends and two side walls of the first rib and the second rib are inclined to the bottom of the male die.

9. A high-strength light stamping die for a ladder-shaped bridge as claimed in claim 1, wherein the second concave rib is provided at its center with a third convex rib protruding toward the bottom of the die and having a rectangular or arc-shaped cross-sectional outer profile, and the second convex rib is provided at its center with a third concave rib corresponding to the third convex rib and recessed toward the bottom of the die.

10. The stamping die for the high-strength light ladder-type bridge frame as claimed in any one of claims 1 to 9, wherein at least one layer of edge beads is disposed at the bottom of the female die, the edge beads are disposed at two sides of the first concave bead and protrude out of the bottom of the upper die, and the lower die plate is provided with edge concave beads corresponding to the edge beads.

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