CN219274225U - Stamping die of rack - Google Patents

Abstract

The utility model provides a stamping die for racks, and belongs to the technical field of stamping dies. The stamping die solves the problem that the existing stamping die is unstable in machining when machining racks. The stamping die of the rack comprises an upper die and a lower die, wherein the upper die and the lower die are clamped to form a first cavity and a second cavity which can be used for placing the rack, the first cavity and the second cavity are arranged along the advancing direction of the rack, the second cavity is close to a discharge end, a plurality of shearing columns and a plurality of stamping columns are arranged on the upper die, the lower end of each shearing column is provided with a shearing inclined surface which is inclined inwards from top to bottom, the lower end of each stamping column is provided with a stamping surface which is L-shaped, all shearing columns are arranged above the first cavity and all shearing inclined surfaces of all shearing columns can be stamped into the first cavity, and all stamping columns are arranged above the second cavity and all stamping surfaces of all stamping columns can be stamped into the second cavity. The stamping die of the rack further improves the stability of rack machining and improves the rate of finished products of the rack.

Description

Stamping die of rack

Technical Field

The utility model belongs to the technical field of stamping dies, and relates to a stamping die for racks.

Background

For various metal plate work products, it is generally necessary to form a metal product of a specific shape in the production of a metal rack. As shown in fig. 1, if the rack 5 includes a rack body 51 having a rectangular shape, the rack body 51 has a downward opening, a plurality of cutouts 52 are sequentially provided at corners of two sides of the rack body 51 at intervals, the rack body 51 is provided with a relief plate 53 in the cutouts 52, the relief plate 53 has an L-shape, and a gap capable of communicating with an inner cavity of the rack body 51 is formed between a side surface of the relief plate 53 and the rack body 51.

The structure is characterized in that a shear notch is formed on the rack body, the rack body in the shear notch is deformed into the L-shaped yielding plate, so that the shear notch is difficult to process, the corresponding pressing plate is directly arranged at present, the rack is extruded at multiple points, the rack in a strip shape is required to be sheared and formed, in actual operation, the strength of the rack is high, the situation that the cutting of the rack is unstable when the cutter is used for cutting is easy to occur, the shape of the yielding plate is set, the corresponding limiting core is difficult to be arranged inside the rack, and the situation that the shape of the yielding plate is unstable after stamping is easy to occur in the stamping process, so that the rate of finished products of rack forming is reduced.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a stamping die for racks, which aims to solve the technical problems that: how to solve the problem of unstable processing of the existing stamping die when processing racks.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a stamping die of rack, includes mould and lower mould, go up mould and lower mould compound die and form die cavity one and die cavity two that can supply the rack to place, its characterized in that, die cavity one and die cavity two all set up along the advancing direction of rack, and die cavity two is close to the discharge end setting, upward be equipped with a plurality of shearing posts and a plurality of punching press post on the mould, the lower extreme of shearing post has the shearing inclined plane that inwards sets up from last downward sloping, the lower extreme of punching press post has the stamping surface that is the L type, and all shearing posts all set up in die cavity one's top and all shearing inclined planes of shearing post all can punching press into die cavity one, and all punching press posts all set up in die cavity two's top and all stamping surfaces of punching press post all can punching press into die cavity two.

Working principle: after the rack subjected to preliminary processing is placed in a first cavity, the upper die and the lower die are clamped, a plurality of shearing columns on the upper die move downwards simultaneously and cut two corner edges at the upper end of the rack, as the shearing columns are provided with shearing inclined planes which incline inwards from top to bottom and are similar to the shapes of scissor faces, the shearing columns can rapidly cut the rack, the parts at the corners of the rack after the cutting are pressed into inclined flat plates, a plurality of shearing holes are formed in the rack, the die is opened, the sheared rack is moved into a second cavity, the die is clamped, all stamping columns can be driven to move downwards to perform secondary stamping forming on the inclined flat plates after the cutting is finished, the inclined flat plates are extruded by stamping faces of the L-shaped stamping columns, so that the racks are processed by the L-shaped yielding plates, the shearing holes on the shearing columns can be more easily sheared by adopting a mode of shearing first, the stamping forming of the yielding plates is performed again, the racks are further stably processed by stamping, and the rack is further processed by the lifting stability of the racks.

In the stamping die of the rack, a first limiting block is further arranged in the upper die, limiting grooves which are arranged in one-to-one correspondence with the shearing columns are formed in the first limiting block, the shearing columns are attached to the groove walls of the corresponding limiting grooves, and the lower end faces of the shearing columns are propped against the groove bottoms of the limiting grooves.

The first limiting block is arranged, so that the first limiting block can be used for limiting when the shearing column is pressed downwards, and the shearing column can be stably arranged in the limiting groove, so that the shearing stability of the shearing column is improved.

In the stamping die of the rack, two first limiting blocks are arranged, all the shearing columns are located between the two first limiting blocks, and the side wall at the lower end of each limiting block can be attached to the side wall of the rack body and slide relatively.

The first limiting block can limit the shearing column and can limit the rack body, and in the die closing process of the upper die and the lower die, the side wall of the lower end of the limiting block can be mutually bonded with the side wall of the rack body and can slide relatively, so that the limiting between the shearing column and the rack body is indirectly realized, the machining of the shearing column is more stable, and the machining stability of the stamping die is further improved.

In the stamping die of the rack, a second limiting block is further arranged in the upper die, an inwards concave yielding groove is formed in one side of the lower end of the stamping column, the stamping surface is located on the other side of the lower end of the stamping column, limiting through grooves which are arranged in one-to-one correspondence with the stamping column are formed in the second limiting block, limiting protrusions are arranged in the limiting through grooves, and the side walls of the limiting protrusions are attached to the groove walls of the yielding grooves.

Through spacing bellied lateral wall and the mode of laminating mutually of the cell wall of groove of stepping down, realized spacing to the punching press post to do not carry out spacingly to the lower extreme of punching press post, promote the punching press effect of punching press post.

In the rack stamping die, the end face of the limiting protrusion is a downward concave cambered surface, the bottom of the abdication groove is an upward concave cambered surface, and an abdication gap is formed between the end face of the limiting protrusion and the bottom of the abdication groove.

Through the setting of clearance of stepping down for after the lower extreme of punching press post is the plane punching press that will incline through the punching press post becomes the board of stepping down that is L, the lower extreme of punching press post offsets with the horizontal end of the board of stepping down and leans on the vertical spacing that realizes, has promoted the processing effect of punching press post to the rack.

In the rack stamping die, two limiting blocks are arranged, all stamping columns are located between the two limiting blocks, and the side wall at the lower end of the limiting block can be attached to the side wall of the rack body and slide relatively.

The second limiting block not only can limit the stamping column, but also can limit the rack body, and in the die closing process of the upper die and the lower die, the side wall of the second lower end of the limiting block can be mutually bonded with the side wall of the rack body and can relatively slide, so that the limiting between the stamping column and the rack body is indirectly realized, the processing of the stamping column is more stable, and the processing stability of the stamping die is further improved.

Compared with the prior art, the rack stamping die has the advantages that: the flat plate inclined is extruded through the stamping face of which the stamping column is in an L shape, so that the flat plate is changed into an L-shaped abdicating plate, the rack is machined, the shearing holes in the rack are sheared more easily by adopting a shearing-then-stamping mode, and the stamping forming of the stamping column is conducted again, so that the formation of the abdicating plate on the rack is more stable, the machining stability of the rack is further improved, and the yield of the rack is improved.

Drawings

Fig. 1 is a schematic view of a conventional rack.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a cross-sectional view of A-A in fig. 2.

Fig. 4 is a partial enlarged view at a in fig. 3.

FIG. 5 is a schematic view of the structure of a shear cylinder according to the present utility model.

Fig. 6 is a schematic structural view of a punching column in the present utility model.

Fig. 7 is a schematic structural view of a first limiting block in the present utility model.

Fig. 8 is a schematic structural view of a second stopper provided with a punching column according to the present utility model.

In the figure, 1, an upper die; 2. a lower die; 3. a first cavity; 4. a second cavity; 5. a rack; 51. a rack body; 52. a cutout; 53. a abdicating plate; 6. a shear column; 61. shearing the inclined plane; 62. positioning the convex edge; 7. stamping a column; 71. stamping a surface; 72. a relief groove; 73. limiting convex edges; 8. a first limiting block; 81. a limit groove; 9. a second limiting block; 91. limiting through grooves; 92. a limit protrusion; 10. yielding a gap.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, the stamping die for the rack comprises an upper die 1 and a lower die 2, the upper die 1 and the lower die 2 are clamped to form a first cavity 3 and a second cavity 4 for placing the rack 5, the first cavity 3 and the second cavity 4 are arranged along the advancing direction of the rack 5, and the second cavity 4 is close to a discharge end.

Specifically, as shown in fig. 1-8, the upper die 1 is provided with a plurality of shearing columns 6 and a plurality of punching columns 7, the lower ends of the shearing columns 6 are provided with shearing inclined planes 61 which are inclined inwards from top to bottom, the lower ends of the punching columns 7 are provided with L-shaped punching surfaces 71, all the shearing columns 6 are arranged above the first die cavity 3, all the shearing inclined planes 61 of the shearing columns 6 can be punched into the first die cavity 3, all the punching columns 7 are arranged above the second die cavity 4, and all the punching surfaces 71 of the punching columns 7 can be punched into the second die cavity 4.

Working principle: after the preliminary processing of the rack 5 is placed in the first cavity 3, the die is opened after the upper die 1 and the lower die 2 are closed, the dies are closed, the upper die 1 can drive all the stamping columns 7 to move downwards to cut the inclined flat plates after the cutting is completed, the inclined flat plates are extruded to be the L-shaped position plates 53 through the stamping faces 71 of the stamping columns 7, so that the processing of the rack 5 is realized, the shearing columns 6 can rapidly cut the rack 5, the parts at the corners of the rack 5 are pressed to be inclined flat plates after the cutting is completed, the rack 5 is provided with a plurality of shearing holes 52, the die is opened again, the sheared rack 5 is moved into the second cavity 4, the dies are closed, the stamping columns 7 can be driven to move downwards to stamp and form the inclined flat plates after the cutting is completed again, the inclined flat plates are extruded to be the L-shaped position plates 53 through the stamping columns 7, the shearing holes 52 are easily formed in a shearing mode after the shearing is adopted, the rack 5 is lifted, the rack 5 is stably pressed again, and the rack 5 is stably formed, and the finished product is stably punched and formed.

As shown in fig. 4-8, a first limiting block 8 is further arranged in the upper die 1, limiting grooves 81 which are arranged in one-to-one correspondence with the shearing columns 6 are formed in the first limiting block 8, the shearing columns 6 are attached to the groove walls of the corresponding limiting grooves 81, the lower end faces of the shearing columns 6 are abutted against the groove bottoms of the limiting grooves 81, two limiting blocks are arranged in the first limiting block 8, all the shearing columns 6 are located between the two first limiting blocks 8, and the side walls of the lower ends of the first limiting blocks 8 can be attached to the side walls of the rack body 51 and slide relatively.

As shown in fig. 3 and 4, the first limiting block 8 is fixedly connected with the upper die 1, the transverse bulge at the upper end of the shearing column 6 forms a positioning convex edge 62, and the positioning convex edge 62 abuts against the upper die 1 and vertically limits.

As shown in fig. 4-8, the upper mold 1 is further provided with a second limiting block 9, one side of the lower end of the stamping column 7 is provided with an inward concave yielding groove 72, the stamping surface 71 is located at the other side of the lower end of the stamping column 7, the second limiting block 9 is provided with a limiting through groove 91 which is arranged in one-to-one correspondence with the stamping column 7, the limiting through grooves 91 are respectively provided with a limiting protrusion 92, the side walls of the limiting protrusions 92 are attached to the groove walls of the yielding groove 72, the end surfaces of the limiting protrusions 92 are downward concave cambered surfaces, the groove bottoms of the yielding groove 72 are upward concave cambered surfaces, a yielding gap 10 is formed between the end surfaces of the limiting protrusions 92 and the groove bottoms of the yielding groove 72, the second limiting block 9 is provided with two limiting blocks, all the stamping columns 7 are located between the two limiting blocks 9, and the side walls of the lower ends of the second limiting blocks 9 can be attached to the side walls of the rack body 51 and slide relatively.

As shown in fig. 3 and 4, the second limiting block 9 is fixedly connected with the upper die 1, the upper end of the stamping column 7 transversely protrudes to form a limiting convex edge 73, and the limiting convex edge 73 abuts against the upper die 1 and vertically limits.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (6)

1. The utility model provides a stamping die of rack, includes mould (1) and lower mould (2), go up mould (1) and lower mould (2) compound die and form die cavity one (3) and die cavity two (4) that can supply rack (5) to place, a serial communication port, die cavity one (3) and die cavity two (4) all set up along the advancing direction of rack (5), and die cavity two (4) are close to the discharge end setting, be equipped with a plurality of shearing post (6) and a plurality of punching post (7) on last mould (1), the lower extreme of shearing post (6) has from upward downward sloping inwards setting's shearing inclined plane (61), the lower extreme of punching post (7) has stamping surface (71) that is the L type, and all shearing post (6) all set up in die cavity one (3) and all shearing post (6) shearing inclined plane (61) all can punching press into die cavity one (3), all punching post (7) all set up in die cavity two (4) top and all punching post (7) stamping surface (71) all can advance two.

2. The stamping die of the racks according to claim 1, wherein a first limiting block (8) is further arranged in the upper die (1), limiting grooves (81) which are arranged in one-to-one correspondence with the shearing columns (6) are formed in the first limiting block (8), the shearing columns (6) are attached to groove walls of the corresponding limiting grooves (81), and the lower end faces of the shearing columns (6) are abutted against groove bottoms of the limiting grooves (81).

3. The stamping die for racks according to claim 2, wherein two first limiting blocks (8) are provided, all shearing columns (6) are located between the two first limiting blocks (8), and the side wall of the lower end of each first limiting block (8) can be attached to the side wall of the rack body (51) and slide relatively.

4. The stamping die of the rack according to claim 1, 2 or 3, wherein a second limiting block (9) is further arranged in the upper die (1), an inward concave yielding groove (72) is formed in one side of the lower end of the stamping column (7), the stamping surface (71) is located on the other side of the lower end of the stamping column (7), limiting through grooves (91) which are arranged in one-to-one correspondence with the stamping column (7) are formed in the second limiting block (9), limiting protrusions (92) are respectively arranged in the limiting through grooves (91), and the side walls of the limiting protrusions (92) are attached to the groove walls of the yielding grooves (72).

5. The stamping die for racks according to claim 4, wherein the end surface of the limit protrusion (92) is a downward concave arc surface, the bottom of the relief groove (72) is an upward concave arc surface, and a relief gap (10) is formed between the end surface of the limit protrusion (92) and the bottom of the relief groove (72).

6. The stamping die for racks according to claim 4, wherein two limiting blocks (9) are provided, all stamping columns (7) are located between the two limiting blocks (9), and the side wall of the lower end of each limiting block (9) can be attached to the side wall of the rack body (51) and slide relatively.

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