CN211990533U - Flanging insert block structure for cold punching - Google Patents

Abstract

The utility model provides a cold punching press is with turn-ups structure of inserting belongs to the mould field, include the core and establish the first turn-ups piece and the second turn-ups piece of core outer lane, form the finished piece die cavity between core and first turn-ups piece and the second turn-ups piece, the lower extreme of first turn-ups piece is equipped with first inserting, the lower extreme of second turn-ups piece is equipped with the second and inserts, first insert with the second all correspond the setting with the claw position of foundry goods, first insert the trapezium structure for invering in the section of thickness direction, first both sides limit is A with the contained angle of vertical face, and the angle of A is 8 ~ 12 degrees, the area of claw between the first section more than or equal to that inserts. The utility model discloses reduce mould rectification volume, the finished piece quality of mould output is more stable.

Description

Flanging insert block structure for cold punching

Technical Field

The utility model belongs to the mould field relates to cold punching is turn-ups structure of inserting for suppression.

Background

In the car cold stamping finished piece manufacture process, there can be a lot of turn-ups processes of not waiting for the height, this type of turn-ups all has the not smooth defect in fillet of different degrees, this defect is difficult to solve always, the reason is that the turn-ups is not high, as shown in figure 1, the main type is the turn-ups claw, because the bellied claw turn-ups resistance of turn-ups is great, difficult turn-ups warp and cause the material gathering in the corner department, cause claw position fillet and both sides turn-ups fillet size nonconformity.

In the traditional flanging insert molding, as the flanging insert surfaces are parallel flanging along with the shape, the resistance at the claw position is difficult to deform greatly, and the material is gathered to the round angle to cause the round angle irregularity.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a cold punching press is with turn-ups structure of inserting, reduces the mould and rectifies the volume of changing, and the finished piece quality of mould output is more stable.

In order to solve the technical problem, the utility model discloses a technical scheme is: the flanging insert structure for cold stamping comprises a core, a first flanging block and a second flanging block, wherein the first flanging block and the second flanging block are arranged on the outer ring of the core, a workpiece cavity is formed between the core and the first flanging block as well as between the core and the second flanging block, a first insert is arranged at the lower end of the first flanging block, a second insert is arranged at the lower end of the second flanging block, the first insert and the second insert are arranged corresponding to the claw position of a casting, the section of the first insert in the thickness direction is of an inverted trapezoidal structure, the included angle between two side edges of the first insert and a vertical surface is A, the angle of the A is 8-12 degrees, and the section of the first insert is larger than or equal to the area of the claw between the two sides.

Furthermore, a first transition fillet is arranged between the upper end of the first insert and the first flanging block, a second transition fillet is arranged at the lower end of the second insert, and the specifications of the first transition fillet and the second transition fillet are consistent.

Furthermore, a third flanging block is embedded at the lower end of one side, far away from the first flanging block, of the second flanging block, a third insert is arranged at the lower end of the third flanging block, and the third insert is matched with the second insert and then is consistent with the first insert in size and specification.

Furthermore, a fourth insert is further arranged at one end, far away from the third insert, of the lower end face of the third flanging block, and the section size of the fourth insert is consistent with that of the third insert.

Furthermore, the lower end of the mold core is provided with a positioning column for guiding and positioning the third flanging block, the upper end of the positioning column is of a conical structure, and the third flanging block is provided with a positioning hole matched with the positioning column.

Furthermore, the lower extreme of core is equipped with the guide bar that leads first turn-ups piece, be equipped with the guide way on the first turn-ups piece, the upper end of guide bar is equipped with the arc portion of bending of keeping away from the core, the arc portion of bending with the guide way corresponds the setting.

Furthermore, four corners of the mold core are provided with a first positioning plate, a second positioning plate, a third positioning plate and a fourth top plate, wherein the first positioning plate, the second positioning plate, the third positioning plate and the fourth top plate are used for positioning the workpiece, and hydraulic cylinders are arranged on the first positioning plate, the second positioning plate, the third positioning plate and the fourth top plate for driving the workpiece to move up and down repeatedly relative to the workpiece.

Compared with the prior art, the utility model has the advantages and positive effect as follows.

1. The utility model discloses increase bellied structural shape in the claw position of finished piece, first insert of first flanging block promptly, the second insert of second flanging block, the third insert and the fourth insert of third flanging block, this structure can be with gathering the material of department of rounding outward diffusion downwards at the during operation, make the whole circular arc of finished piece around the claw structure unanimous with between the size, detect the round angle smooth and straight after the shaping, this structure reduces the whole volume of changing of mould, promote the product quality of mould output;

2. the guide rod for improving the motion precision of the first insert is arranged, and the positioning column for improving the motion precision of the third insert is arranged, so that the motion precision of the second insert is also ensured, the motion precision of the whole structure is realized, the quality of flour products between the guide rod and the positioning column is improved, and the product percent of pass is improved;

3. the section parameters of the first insert are set, so that the processing degree is simplified, the processing cost is reduced, the die rectification and improvement amount is reduced, and the quality of a workpiece produced by the die is more stable on the premise of reducing the die cost as much as possible.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of the structure of an article;

FIG. 2 is a structural schematic diagram of the structure of the flanging insert for cold stamping of the present invention;

figure 3 is a detailed view of section a of figure 2 of the present invention;

figure 4 is a detailed view of section B of figure 2 of the present invention;

figure 5 is a detail view of section C of figure 2 of the present invention;

FIG. 6 is a schematic structural diagram of the structure of the flanging insert for cold stamping of the present invention from the rear;

fig. 7 is a schematic structural view of the flanging insert block structure for cold stamping of the present invention without the first flanging block, the second flanging block and the third flanging block;

fig. 8 is a schematic structural view of the first flanging block of the present invention;

fig. 9 is a schematic structural view of a second flanging block of the present invention;

fig. 10 is a schematic structural view of a third flanging block of the present invention.

Reference numerals:

1. a core; 2. a first flanging block; 21. a first insert; 211. a first transition fillet; 212. a second transition fillet 22, a guide rod; 221. an arc-shaped bending part; 3. a second flanging block; 31. a second insert; 32. a positioning column; 4. a workpiece cavity; 5. a first positioning plate; 6. a second positioning plate; 7. a third positioning plate; 8. a third flanging block; 81. a third insert; 82. a fourth insert; 9. a fourth positioning plate; 10. manufacturing a workpiece; 101. and (5) claws.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

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 the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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 following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 to 10, the flanging insert structure for cold stamping includes a core 1, and a first flanging block 2 and a second flanging block 3 which are arranged at an outer ring of the core 1, a workpiece cavity 4 is formed between the core 1 and the first flanging block 2 and the second flanging block 3, a first insert 21 is arranged at a lower end of the first flanging block 2, a second insert 31 is arranged at a lower end of the second flanging block 3, the first insert 21 and the second insert 31 are both arranged corresponding to a position of a claw 101 of a casting, a cross section of the first insert 21 in a thickness direction is an inverted trapezoid structure, an included angle between two side edges of the first insert 21 and a vertical surface is a, an angle of the a is 8 to 12 degrees, preferably 10 degrees, the cross section of the first insert 21 is greater than or equal to an area of the claw 101, and is more favorable for forming the claw 101.

Preferably, a first transition fillet 211 is arranged between the upper end of the first insert 21 and the first flanging block 2, a second transition fillet 212 is arranged at the lower end of the second insert 31, the first transition fillet 211 and the second transition fillet 212 have the same specification, the specification is consistent, the machining is convenient, the machining tool does not need to be replaced during the machining, and the machining cost is reduced.

Preferably, a third flanging block 8 is embedded in the lower end of the second flanging block 3, which is far away from the first flanging block 2, a third insert 81 is arranged at the lower end of the third flanging block 8, the third insert 81 is matched with the second insert 31 and then is consistent with the first insert 21 in size and specification, the specification is consistent and convenient to process, and after the third flanging block 8 is embedded, the structure is convenient to split and process and manufacture, and the processing cost of the die is reduced; more preferably, a fourth insert 82 is further disposed at one end of the lower end surface of the third flanging block 8, which is far away from the third insert 81, the cross-sectional size of the fourth insert 82 is the same as that of the third insert 81, the position of the claw 101 on the workpiece 10 is set, and the number of the claws 101 is different for different products, and the number and the shape of the correspondingly disposed inserts are also adjusted; more preferably, the lower end of the core 1 is provided with a positioning column 32 for guiding and positioning the third flanging block 8, the upper end of the positioning column 32 is of a conical structure, and the third flanging block 8 is provided with a positioning hole matched with the positioning column 32, so that the movement accuracy of the third insert 81 and the second insert 31 is ensured, and the improvement of the quality of the finished product 10 is facilitated.

Preferably, the lower extreme of core 1 is equipped with the guide bar 22 that leads first turn-ups piece 2, is equipped with the guide way on the first turn-ups piece 2, and the upper end of guide bar 22 is equipped with the arc portion 221 of bending of keeping away from core 1, and the arc portion 221 of bending corresponds the setting with the guide way, sets up behind guide bar 22 and the guide way, promotes the motion precision of first turn-ups piece 2, is favorable to promoting the face article quality of finished piece 10.

Preferably, the four corners of the mold core 1 are provided with a first positioning plate 5, a second positioning plate 6, a third positioning plate 7 and a fourth top plate, which are used for positioning the workpiece 10, the first positioning plate 5, the second positioning plate 6, the third positioning plate 7 and the fourth top plate are all driven by hydraulic cylinders to realize the up-and-down repeated movement of the workpiece 10, the four corners of the workpiece 10 are positioned and limited, the forming quality of the workpiece 10 is further improved, and the qualification rate of products is improved.

In the actual use process, the positions of the claws 101 of the workpiece 10 are added with convex structural shapes, namely the first insert 21 of the first flanging block 2, the second insert 31 of the second flanging block 3, and the third insert 81 and the fourth insert 82 of the third flanging block 8, so that the material gathered at the round corners can be diffused downwards and outwards during the work, the sizes of the whole circular arcs of the workpiece 10 around the claw 101 structure are consistent, the round corners are detected to be smooth after the molding, the structure reduces the die correction amount, and the product quality produced by the die is improved.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (7)

1. The cold stamping is with turn-ups insert structure, its characterized in that: the mold comprises a mold core, a first flanging block and a second flanging block, wherein the first flanging block and the second flanging block are arranged on a mold core outer ring, a workpiece cavity is formed between the mold core and the first flanging block as well as between the mold core and the second flanging block, a first insert is arranged at the lower end of the first flanging block, a second insert is arranged at the lower end of the second flanging block, the first insert and the second insert are arranged corresponding to the claw position of a casting, the section of the first insert in the thickness direction is of an inverted trapezoidal structure, the included angle between two side edges of the first insert and a vertical surface is A, the angle of the A is 8-12 degrees, and the section of the first insert is larger than or equal to the area of the claw.

2. The flanging insert structure for cold stamping according to claim 1, characterized in that: and a first transition fillet is arranged between the upper end of the first insert and the first flanging block, a second transition fillet is arranged at the lower end of the second insert, and the specifications of the first transition fillet and the second transition fillet are consistent.

3. The flanging insert structure for cold stamping according to claim 1, characterized in that: the lower end of one side, far away from the first flanging block, of the second flanging block is embedded with a third flanging block, the lower end of the third flanging block is provided with a third insert, and the third insert is matched with the second insert and then is consistent with the first insert in size and specification.

4. The flanging insert structure for cold stamping according to claim 3, characterized in that: and a fourth insert is further arranged at one end, far away from the third insert, of the lower end surface of the third flanging block, and the section size of the fourth insert is consistent with that of the third insert.

5. The flanging insert structure for cold stamping according to claim 3, characterized in that: the lower end of the mold core is provided with a positioning column for guiding and positioning the third flanging block, the upper end of the positioning column is of a conical structure, and the third flanging block is provided with a positioning hole matched with the positioning column.

6. The flanging insert structure for cold stamping according to claim 1, characterized in that: the lower extreme of core is equipped with the guide bar that leads to first turn-ups piece, be equipped with the guide way on the first turn-ups piece, the upper end of guide bar is equipped with the arc portion of bending of keeping away from the core, the arc portion of bending with the guide way corresponds the setting.

7. The flanging insert structure for cold stamping according to claim 1, characterized in that: the four corners of the mold core are provided with a first positioning plate, a second positioning plate, a third positioning plate and a fourth top plate which are used for positioning the workpiece, and the first positioning plate, the second positioning plate, the third positioning plate and the fourth top plate are all driven by hydraulic cylinders to realize the up-and-down repeated movement of the relative workpiece.

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