CN214382892U

CN214382892U - Structure for bending upper part of material belt of stamping connecting plate

Info

Publication number: CN214382892U
Application number: CN202022402309.7U
Authority: CN
Inventors: 衡思将; 汪善平
Original assignee: Xuzhou Yuntai Precision Technology Co ltd
Current assignee: Xuzhou Yuntai Precision Technology Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-10-12
Anticipated expiration: 2030-10-26

Abstract

The utility model belongs to the technical field of the structure, concretely relates to a structure for bending above punching connecting plate material belt, including upper die and lower die, the upper die includes upper die base, upper padding plate, fixed plate, backstop board and takes off the flitch in proper order, and the lower die includes lower bolster, lower bolster and die holder in proper order, under the complete die sinking state, reserves the idle stroke between fixed plate and the backstop board, be fixed with the slotting tool drift on the fixed plate, the slotting tool drift passes backstop board and takes off the flitch in proper order; the lower die plate is characterized by further comprising a core rod floating block and a forming core rod, wherein the core rod floating block is of a U-shaped structure, the end face of the core rod floating block is provided with a mounting hole used for mounting the forming core rod, the forming core rod is of an L-shaped structure, one side of the forming core rod extends into the mounting hole of the core rod floating block and is fixed with the mounting hole, the lower die plate is provided with a mounting groove used for placing U-shaped two side edges of the core rod floating block, and a floating block spring is placed on the lower die. The product is firstly pressed when being bent, and then the product is bent, so that the dimensional stability of the product after being bent is ensured.

Description

Structure for bending upper part of material belt of stamping connecting plate

Technical Field

The utility model belongs to the technical field of the structure, concretely relates to a structure that is used for punching press connecting plate material area top to bend.

Background

At present, the upper part of the material belt is bent to be an empty bend, the material is not positioned, and a bent product is easy to deform and the size cannot be guaranteed.

Disclosure of Invention

In order to overcome above-mentioned prior art's weak point, the utility model provides a structure for bending above punching press connecting plate material area, the product pushes down the product earlier when bending, then bends, has guaranteed the dimensional stability after the product is bent.

The utility model discloses a realize through following technical scheme: a structure for stamping bending above a connecting plate material belt comprises an upper die and a lower die, wherein the upper die sequentially comprises an upper die base, an upper backing plate, a fixed plate, a stop plate and a stripper plate, the lower die sequentially comprises a lower die plate, a lower backing plate and a lower die base, a reserved space stroke is reserved between the fixed plate and the stop plate in a complete die opening state, a slotting tool punch is fixed on the fixed plate, and the slotting tool punch sequentially penetrates through the stop plate and the stripper plate; the lower die plate is provided with a lower die plate, the lower die plate is provided with a lower die plate and a lower die plate, the lower die plate is provided with a lower die plate, and the lower die plate is provided with a lower die plate and a lower die plate; the lower template is internally provided with a forming sliding block which is matched with the forming core rod and used for bending a product, one end of the forming sliding block, which is far away from the forming core rod, is in wedge-shaped fit with the slotting tool punch, one end of the forming sliding block, which is close to the forming core rod, is provided with a return spring, and the lower template is also provided with a limiting mechanism II for limiting the up-and-down displacement of the forming sliding block; the stripper plate positioned right above the core rod floating block is provided with a hollow structure.

Further, stop gear I includes clamp plate and screw II, and the clamp plate is L type structure, and the side outside of the U type both sides of plug floating block is equipped with the arch, and the clamp plate cooperatees with the arch of plug floating block, and the clamp plate passes through screw II to be fixed on the lower bolster.

Furthermore, stop gear II includes slider clamp plate and screw III, and the shaping slider is located the guide chute of lower bolster, and the slider clamp plate is laid perpendicularly at the open end of the guide chute of lower bolster to it is fixed with lower template through screw III with the slider clamp plate.

Furthermore, the floating block spring is arranged in a spring groove formed by the inner part of the lower backing plate and the inner part of the lower die holder.

Furthermore, a spring guide rod for guiding the floating block spring is further installed on the end faces of the side edges of the two sides of the U-shaped core rod floating block.

Further, the forming core rod is fastened with the core rod floating block through a compression screw.

Further, the stop plate and the stripper plate are fixedly connected through screws I.

The utility model has the advantages that: the product is firstly pressed when being bent, and then the product is bent, so that the problems of bending deformation and unstable size of the product are effectively solved.

Drawings

FIG. 1 is a schematic structural view of the mold opening state of the present invention;

FIG. 2 is a schematic structural view of the mold closed state of the present invention;

fig. 3 is a schematic end view of the core rod floating block of the present invention;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a front view of the molding core rod of the present invention;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a left side view of FIG. 5;

fig. 8 is a schematic structural view of the forming slide block of the present invention;

fig. 9 is a schematic top view of the arrangement of the corresponding components on the lower mold of the present invention;

in the figure, 1, a core rod floating block, 2, a pressing plate, 3, a spring guide rod, 4, a floating block spring, 5, a forming core rod, 6, a slotting tool punch, 7, a return spring, 8, a forming sliding block, 9, a compression screw, 10, a product to be formed, 11, a formed product, 12, a sliding block pressing plate, 13, an upper die holder, 14, an upper backing plate, 15, a fixing plate, 16, a stop plate, 17, a stripper plate, 18, a lower die plate, 19, a lower backing plate, 20, a lower die holder, 21, a screw I, 22, a screw II, 23 and a screw III.

Detailed Description

The invention will be further explained below with reference to the drawings and examples.

As shown in fig. 1 to 9, a structure for bending above punching connecting plate material belt comprises an upper die and a lower die, wherein the upper die sequentially comprises an upper die base 13, an upper padding plate 14, a fixing plate 15, a stop plate 16 and a stripper plate 17, the lower die sequentially comprises a lower die plate 18, a lower padding plate 19 and a lower die base 20, a reserved space stroke is reserved between the fixing plate 15 and the stop plate 16 in a complete die opening state, a slotting tool punch 6 is fixed on the fixing plate 15, the slotting tool punch 6 sequentially penetrates through the stop plate 16 and the stripper plate 17, and the stop plate 16 and the stripper plate 17 are fixedly connected through a screw i 21. The forming core rod structure is characterized by further comprising a core rod floating block 1 and a forming core rod 5, wherein the core rod floating block 1 is of a U-shaped structure, an installation hole used for installing the forming core rod 5 is formed in the end face of the core rod floating block 1, the forming core rod 5 is of an L-shaped structure, one side of the forming core rod 5 extends into the installation hole of the core rod floating block 1, and the forming core rod 5 is fastened with the core rod floating block 1 through a compression screw 9. The lower die plate 18 is provided with mounting grooves for placing the two side edges of the 1U-shaped core rod floating block, the two side edges of the core rod floating block 1 extend into the mounting grooves of the lower die plate 18, the floating block spring 4 is placed on the lower die, and the floating block spring 4 is placed in a spring groove formed by the inside of the lower backing plate 19 and the inside of the lower die holder 20. The floating block spring 4 is located below the side edge of the core rod floating block 1, the floating block spring 4 is in elastic contact with the side edge of the core rod floating block 1, and a limiting mechanism I for limiting the core rod floating block 1 to be completely separated from the lower template 18 installation groove is further arranged on the lower die. Stop gear I includes clamp plate 2 and screw II 22, and clamp plate 2 is L type structure, and the side outside of the U type both sides of plug floating block 1 is equipped with the arch, and the arch of plug floating block 1 is caught to one side of clamp plate 2, and clamp plate 2 passes through screw II 22 to be fixed on lower bolster 19. The core rod floating block 1 which is composed of the limiting mechanism I and the floating block spring 4 moves up and down in a limiting mode in the installation groove of the lower template.

A forming slide block 8 which is matched with the forming core rod 5 and used for bending a product is further arranged inside the lower template 18, the forming slide block 8 is matched with the forming core rod 5 extending outside the end face of the core rod floating block 1 to bend the product, one end, far away from the forming core rod 5, of the forming slide block 8 is in wedge-shaped fit with the slotting tool punch 6, a return spring 7 is arranged at one end, close to the forming core rod 5, of the forming slide block 8, and a limiting mechanism II for limiting the forming slide block 8 to move up and down is further arranged on the lower template 18; the limiting mechanism II comprises a sliding block pressing plate 12 and a screw III 23, the forming sliding block 8 is located in a guide sliding groove of the lower template 18, the sliding block pressing plate 12 is vertically arranged at the opening end of the guide sliding groove of the lower template 18, and the sliding block pressing plate 12 is fixed with the lower template 18 through the screw III 23. The limiting mechanism II and the guide sliding groove of the lower template 18 enable the forming sliding block 8 to only move horizontally and linearly in the guide sliding groove of the lower template 18.

In order to avoid being influenced by the height of the die, the stripper plate 17 positioned right above the core rod floating block 1 is provided with a hollow structure, and when the stripper plate 17 is completely hollow, the core rod floating block 1 is in contact with the stop plate 16 when the die is closed.

When the structure is used, the structure is placed on a punch press, an upper table plate of the punch press moves to drive a lower die to descend (the upper die base 13, an upper base plate 14, a fixing plate 15, a stop plate 16, a stripper plate 17 and a slotting tool punch 6 are driven to move downwards and vertically together), a mandrel floating block 1 penetrates through the stripper plate 17 and then is in contact with the stop plate 16, along with the continuous descending of the lower die, the stop plate 16 pushes the mandrel floating block 1 to move downwards to overcome the resistance of a floating block spring 4, when a product 10 to be formed is simultaneously in contact with the stripper plate 17 and a lower die plate 18, the mandrel floating block 1 reaches a designated position, and a formed mandrel 5 presses the product 10 to be formed. Because a reserved stroke is reserved between the fixing plate 15 and the stop plate 16, under the continuous motion of an upper table disc of the punch press, the upper die base 13, the upper padding plate 14, the fixing plate 15 and the slotting tool punch 6 continue to move vertically downwards together, when the slotting tool punch 6 touches the wedge-shaped surface of the forming slide block 8, the forming slide block 8 is pushed to overcome the resistance of the return spring 7 and move horizontally and linearly towards the direction of the forming core rod 5, when the fixing plate 15 contacts the stop plate 16, the slotting tool punch 6 and the forming slide block 8 reach the designated position, and the product 10 to be formed forms a formed product 11 after being subjected to extrusion matching of the forming slide block 8 and the forming core rod 5.

In order to prevent the floating block spring 4 from deforming and further cause the service life to be reduced, the spring guide rod 3 used for guiding the floating block spring 4 is further installed on the side end faces of the two sides of the U-shaped core rod floating block 1.

The core rod floating block of this structure spanes the material area top and drives shaping core rod vertical motion, and product shaping back material area horizontal motion does not influence the product motion, and the effectual product of having solved is bent and is out of shape and size unstability.

Claims

1. The utility model provides a structure for punching press connecting plate material area top is bent, includes mould and lower mould, goes up the mould and includes upper die base (13), upper padding plate (14), fixed plate (15), backstop board (16) and takes off flitch (17) in proper order, and the lower mould includes lower bolster (18), lower bolster (19) and die holder (20) in proper order, its characterized in that: in the complete die opening state, a reserved space stroke is reserved between a fixing plate (15) and a stop plate (16), a slotting tool punch (6) is fixed on the fixing plate (15), and the slotting tool punch (6) sequentially penetrates through the stop plate (16) and a stripper plate (17); the core rod floating block structure comprises a core rod floating block (1) and a forming core rod (5), wherein the core rod floating block (1) is of a U-shaped structure, the end face of the core rod floating block (1) is provided with a mounting hole for mounting the forming core rod (5), the forming core rod (5) is of an L-shaped structure, one side of the forming core rod (5) extends into the mounting hole of the core rod floating block (1) and is fixed with the mounting hole, a lower die plate (18) is provided with mounting grooves for placing the U-shaped two side edges of the core rod floating block (1), a floating block spring (4) is placed on the lower die, the floating block spring (4) is positioned below the side edge of the core rod floating block (1) and is in elastic contact with the side edge of the core rod floating block (1), and the lower die is further provided with a limiting mechanism I for limiting the core rod floating block (1) to be completely separated from the mounting groove of the lower die plate (18); a forming sliding block (8) matched with the forming core rod (5) and used for bending a product is further arranged inside the lower template (18), one end, far away from the forming core rod (5), of the forming sliding block (8) is in wedge-shaped fit with the slotting tool punch (6), one end, close to the forming core rod (5), of the forming sliding block (8) is provided with a return spring (7), and a limiting mechanism II for limiting the forming sliding block (8) to move up and down is further arranged on the lower template (18); the stripper plate (17) positioned right above the core rod floating block (1) is provided with a hollow structure.

2. The structure of claim 1, wherein the structure is used for punching an upper bend of a connecting plate material strip, and comprises: stop gear I includes clamp plate (2) and screw II (22), and clamp plate (2) are L type structure, and the side outside of the U type both sides of plug floating block (1) is equipped with the arch, and clamp plate (2) cooperate with the arch of plug floating block (1), and clamp plate (2) are fixed on lower bolster (19) through screw II (22).

3. The structure of claim 1, wherein the structure is used for punching an upper bend of a connecting plate material strip, and comprises: the limiting mechanism II comprises a sliding block pressing plate (12) and a screw III (23), the forming sliding block (8) is located in a guide sliding groove of the lower template (18), the sliding block pressing plate (12) is vertically placed at the opening end of the guide sliding groove of the lower template (18), and the sliding block pressing plate (12) is fixed with the lower template (18) through the screw III (23).

4. The structure of claim 1, wherein the structure is used for punching an upper bend of a connecting plate material strip, and comprises: the floating block spring (4) is arranged in a spring groove formed by the inner part of the lower backing plate (19) and the inner part of the lower die holder (20).

5. A structure for punching an upper bend of a connecting plate material strip according to claim 1 or 4, wherein: and spring guide rods (3) used for guiding the floating block springs (4) are further mounted on the side edge end faces of the U-shaped two sides of the core rod floating block (1).

6. The structure of claim 1, wherein the structure is used for punching an upper bend of a connecting plate material strip, and comprises: the forming core rod (5) is fastened with the core rod floating block (1) through a compression screw (9).

7. The structure of claim 1, wherein the structure is used for punching an upper bend of a connecting plate material strip, and comprises: the stop plate (16) and the stripper plate (17) are fixedly connected through screws I (21).