CN216911719U - Incision knife tackle spare and stamping die - Google Patents

Abstract

The application discloses incision knife tackle spare and stamping die belongs to stamping die technical field. A slitting knife assembly for a stamping die, the slitting knife assembly comprising: the cutting knife comprises a first surface, a second surface and a third surface, wherein the first surface and the second surface are parallel to each other, and the third surface is arranged between the first surface and the second surface and is connected with the first surface and the second surface; a first pierce insert connected to the first face; a second punch insert connected to the second face; the lower die insert is used for being connected with the third surface, and two side ends of the lower die insert are respectively used for being connected with the first punching insert and the second punching insert. The method and the device can realize that the trimming is completed by changing two processes into one process, combine the processes, improve the strength of the die and reduce the cost.

Description

Incision knife tackle spare and stamping die

Technical Field

The application relates to the technical field of stamping dies, in particular to a notching knife assembly and a stamping die.

Background

At present, in the production process of part of automobile parts, processing such as punching or trimming is required. However, the existing processing procedures have the problems of more required equipment, troublesome operation, increased manpower and equipment cost and the like. For example, the existing mold is adopted to trim a part, and two processes are generally needed to complete the trimming process, so that the cost is high. If trimming is changed into one process to complete in order to compress cost and release product stress, intermediate waste needs to be repaired once, the waste is difficult to remove, the strength of the die is extremely poor, and the service life of the die is short.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problems, the present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the utility model provides a slotting cutter component and a stamping die, which can change two procedures into one procedure for trimming, improve the die strength, reduce the cost and overcome the defects in the prior art.

In order to solve the technical problem, the present application is implemented as follows:

according to one aspect of the present application, there is provided a slitting knife assembly for a stamping die, the slitting knife assembly comprising:

the cutting knife comprises a first surface, a second surface and a third surface, wherein the first surface and the second surface are parallel to each other, and the third surface is arranged between the first surface and the second surface and is connected with the first surface and the second surface;

a first pierce insert connected to the first face;

a second punch insert connected to the second face;

the lower die insert is used for being connected with the third surface, and two side ends of the lower die insert are respectively used for being connected with the first punching insert and the second punching insert.

In some of these embodiments, the lower die insert includes first and second side surfaces that are parallel to each other, and a third side surface that is disposed between and connected to the first and second side surfaces;

wherein the first side surface has a first connecting portion connected with the first punch insert, the second side surface has a second connecting portion connected with the second punch insert, and the third side surface has a third connecting portion connected with the third surface of the slitting knife.

In some embodiments, the third face of the slitting knife comprises a first slitting end and a second slitting end, the second slitting end is located above the first slitting end, and the first slitting end and the second slitting end are respectively connected with the third connecting portion.

In some of these embodiments, the difference in height between the second cut end and the first cut end is 2mm to 4 mm.

In some of these embodiments, the difference in height of the second cut end from the first cut end is 3 mm.

In some of these embodiments, the first punch insert is removably attached to the first face; and/or the second punch insert is removably attached to the second face;

the detachable connection mode comprises clamping connection or sliding connection.

In some of these embodiments, the lower end of the first punch insert has a protruding first annular connecting portion;

and/or the lower end of the second punch insert has a protruding second annular connecting portion.

In some embodiments, the first face and the second face are each L-shaped.

According to another aspect of the present application, there is provided a stamping die, including an upper die and a lower die, further including the slitting knife assembly as described above, wherein the slitting knife, the first punch insert and the second punch insert in the slitting knife assembly are mounted on the upper die, and the lower die insert in the slitting knife assembly is mounted on the lower die.

In some embodiments, the lower die comprises a lower die plate, the lower die plate is provided with a notch, and a first punched hole and a second punched hole are arranged on two sides of the notch;

the lower end of the upper die is provided with the slotting cutter, the first punching insert and the second punching insert, the slotting cutter is correspondingly arranged above the notch, the first punching insert and the second punching insert are correspondingly arranged above the first punching hole and the second punching hole respectively, and the lower die insert is connected with the lower end of the slotting cutter.

The technical scheme of the utility model at least has the following beneficial effects:

in an embodiment of the present application, the provided slotting cutter assembly includes a slotting cutter, a first punching insert, a second punching insert and a lower die insert, wherein the first punching insert is connected with a first surface of the slotting cutter, the second punching insert is connected with a second surface of the slotting cutter, the lower die insert is connected with a third surface of the slotting cutter, and the lower die insert is further connected with the first punching insert and the second punching insert respectively. Like this, can utilize this incision knife tackle spare to carry out the deburring, can cut off the waste material that punches a hole of waste material and both sides in the middle of can being respectively completely, the waste material can discharge the mould both sides smoothly, can make the waste material segmentation discharge the mould fast outside, improved mould intensity, also conveniently promote the product quality, the cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a slitting knife assembly according to some embodiments of the utility model;

FIG. 2 is an exploded view of a slitting knife assembly according to some embodiments of the present invention;

FIG. 3 is an enlarged schematic view of a portion of a slitting knife assembly according to some embodiments of the utility model;

fig. 4 is a schematic partial structural view of a stamping die according to some embodiments of the present invention.

Description of reference numerals:

1-a nicking knife; 101-a first side; 102-a second face; 103-a third face;

2-a first punch insert; 201-first annular connection

3-a second punch insert; 301-a second annular connection;

4-a lower die insert; 401-a first side; 402-a second side; 403-a third side;

5-incision; 6-first punching; 7-second punching; a-a first position; b-a second position.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the present invention, unless stated to the contrary, use of the directional terms "upper, lower, left, right" are generally with respect to the orientation shown in the drawings, or with respect to the component itself in a vertical, or gravitational orientation. Similarly, for ease of understanding and description, the definitions of "inner and outer" are consistent with the usual definitions of inner and outer, such as "inner and outer" referring to the inner and outer contours of the respective components themselves, but the above directional words are not intended to limit the utility model.

The embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 4, fig. 1 is a schematic structural view illustrating a slitting knife assembly according to some embodiments; FIG. 2 illustrates an exploded view of a slitting knife assembly according to some embodiments; FIG. 3 illustrates an enlarged view of a portion of a slitting knife assembly according to some embodiments; fig. 4 shows a schematic structural view of a part of a stamping die provided by some embodiments. In some embodiments of the present application, there is provided a slitting knife assembly for a stamping die, the slitting knife assembly comprising a slitting knife 1, a first punch insert 2, a second punch insert 3 and a lower die insert 4. The slotting cutter 1 can be arranged corresponding to the slot 5 in the die, the slotting cutter 1 can be used for cutting off waste materials, the slotting cutter 1 is respectively connected with the first punching insert 2, the second punching insert 3 and the lower die insert 4, and the lower die insert 4 is also respectively connected with the first punching insert 2 and the second punching insert 3. The lower die insert 4 may be attached to the lower end of the slitting knife 1 with the slitting knife 1 and the lower die insert 4 located between the first 2 and second 3 punch inserts. The slitting knife 1, the first punch insert 2 and the second punch insert 3 are able to move downwards to perform cutting of waste material.

Specifically, as shown in fig. 1 to 2, the notch knife 1 includes a first surface 101 and a second surface 102 that are parallel to each other, and a third surface 103 that is provided between the first surface 101 and the second surface 102 and is connected to the first surface 101 and the second surface 102. The first pierce insert 2 is connected to the first face 101 of the slitting knife 1 and the second pierce insert 3 is connected to the second face 102 of the slitting knife 1. The lower die insert 4 can be connected with the third face 103 of the slotting cutter 1, and both side ends of the lower die insert 4 can be connected with the first punching insert 2 and the second punching insert 3 respectively; i.e. the lower die insert 4 has at least three side ends which are connected to the third face 103 of the slitting knife 1, the first pierce insert 2 and the second pierce insert 3, respectively.

The notch knife assembly provided by the embodiment can be applied to the field of stamping dies, for example, in the trimming process of automobile stamping parts. The existing die needs two working procedures to be finished during trimming treatment, so that the operation is troublesome, the cost is high, the waste material is difficult to remove, the die strength is poor, and the service life is short. Based on this, this application combines the characteristics of current mould, has simplified the mould structure, makes the deburring change a process into and accomplishes by two processes, effectively reduces the cost, has prolonged life. It can enough increase mould intensity through increase the incision in the centre, can let the waste material segmentation discharge the mould fast again outside, has alleviated waste material discharge difficulty, the poor scheduling problem of mould intensity that exist among the prior art.

When the slotting tool assembly is used, the slotting tool 1, the first punching insert 2 and the second punching insert 3 can move downwards, and when the slotting tool 1, the first punching insert 2 and the second punching insert 3 and the lower die insert 4 are cut into a certain distance (if the cutting edge is about 3 mm), the middle waste can be cut off, so that the internal stress is released. Further, the slotting cutter 1, the first punching insert 2 and the second punching insert 3 continue to move downwards, and when the slotting cutter 1, the first punching insert 2, the second punching insert 3 and the lower die insert 4 are cut into a certain distance (if the cutting edge is about 6 mm), punching waste on two sides is completely cut off, and the waste can be smoothly discharged from two sides of the die. Like this embodiment sets up through the cooperation of slotting tool 1, first punching insert 2, second punching insert 3 and lower mould insert 4 etc. more is favorable to carrying out the deburring to the finished piece, and cutting quality is high, helps improving work efficiency.

Therefore, the slotting cutter component has a simple structure and is convenient to use, two processes can be combined into one process, and the cost is saved; the middle part can be cut off in advance, the internal stress of a product piece is released, and the quality of the product is conveniently improved; the problem of difficulty in discharging the whole waste materials in the middle can be avoided, and the strength of the die is improved by making the waste materials be segmented and drawn out of the die.

To facilitate the connection of the lower die insert 4 with the slitting knife 1, the first pierce insert 2 and the second pierce insert 3, respectively, the lower die insert 4 may comprise a plurality of side faces. Specifically, in some embodiments, the lower die insert 4 includes a first side surface 401 and a second side surface 402 parallel to each other, and a third side surface 403 disposed between the first side surface 401 and the second side surface 402 and connected to the first side surface 401 and the second side surface 402.

Wherein the first side 401 has a first connecting portion to the first punch insert 2, the second side 402 has a second connecting portion to the second punch insert 3, and the third side 403 has a third connecting portion to the third face 103 of the slitting knife 1. That is, the lower die insert 4 is connected to the first pierce insert 2 by a first connecting portion of the first side 401, the lower die insert 4 is connected to the second pierce insert 3 by a second connecting portion of the second side 402, and the lower die insert 4 is connected to the slitting knife 1 by a third connecting portion of the third side 403.

Alternatively, the lower die insert 4 may have a substantially rectangular parallelepiped shape. The lower die insert 4 may further include a fourth side surface, a fifth side surface and a sixth side surface, wherein the fourth side surface is disposed opposite to the third side surface 403, and the sixth side surface is disposed opposite to the fifth side surface. The areas of the first side 401 and the second side 402 of the lower die insert 4 are equal, the areas of the third side 403 and the fourth side are equal, the areas of the first side 401 and the second side 402 are smaller, and the areas of the first side 401 and the second side 402 are smaller than the areas of the third side 403 or the fourth side, respectively.

In some embodiments, the third face 103 of the slitting knife 1 comprises a first slitting end and a second slitting end, the second slitting end is located above the first slitting end, and the first slitting end and the second slitting end are respectively connected with the third connecting portion. In this way, the first notch end and the second notch end can be respectively and sequentially matched with the third connecting portion of the third side 403 of the lower die insert 4, so that partial waste can be sequentially cut off and gradually cut without mutual interference.

In some embodiments, the difference in height of the second cut end from the first cut end is 2mm-4 mm. For example, the difference in height between the second cut end and the first cut end may be 2mm, 3mm, 4mm, etc. Preferably, in some embodiments, the difference in height between the second cut end and the first cut end is 3 mm. The height difference within the range can be conveniently matched with the stamping structure and the plate thickness of the automobile related stamping part.

As shown in fig. 3, a in fig. 3 is a first position where a is about 3mm in edge to repair the intermediate slug without ejecting the die; b is the second position where b blades about 6mm to break the punch scrap and exits the die.

Thus, when the slitting knife 1, the first and second pierce inserts 2 and 3 move downward and the slitting knife 1, the first and second pierce inserts 2 and 3 and the lower die insert 4 are edged by about 3mm, the waste in the middle can be cut off, releasing the internal stress. Further, the slotting tool 1, the first punching insert 2 and the second punching insert 3 continue to move downwards, and when the blades of the slotting tool 1, the first punching insert 2, the second punching insert 3 and the lower die insert 4 are about 6mm, punching waste on two sides is completely cut off, and the waste can be smoothly discharged from two sides of the die.

The slitting knife 1 may be substantially L-shaped to facilitate the cutting of waste material and to facilitate the attachment of the first and second pierce inserts 2, 3 and the lower die insert 4. Further, in some embodiments, the first face 101 and the second face 102 of the slitting knife 1 are both L-shaped. The first and second pierce inserts 2, 3 can be attached to the bottom ends of the L-shaped first and second faces 101, 102, respectively. Further, the third surface 103 of the slitting knife 1 may be rectangular, and the lower die insert 4 may be connected to a bottom end of the rectangular third surface 103. Therefore, the structure is simple, the processing and the manufacturing are easy, the cutting is facilitated, and the connection is also convenient.

In some embodiments, the first punch insert 2 is removably attached to the first face 101; and/or the second punch insert 3 is removably attached to the second face 102; the detachable connection mode comprises clamping connection or sliding connection.

It should be noted that the specific connection manner of the first punching insert 2 and the slitting knife 1 and the specific connection manner of the second punching insert 3 and the slitting knife 1 are not limited in this embodiment, and various detachable connection manners known in the art, such as a snap connection manner or a male-female fit connection manner, may be adopted, as long as the purpose of the present application is not limited, and will not be described in detail herein.

In some embodiments, the lower end of the first punch insert 2 has a protruding first annular connecting portion 201. The first pierce insert 2 is connectable to the slitting knife 1 and the lower die insert 4, respectively, by means of a first annular connecting portion 201.

In some embodiments, the lower end of the second punch insert 3 has a protruding second annular connecting portion 301. The second pierce insert 3 is connectable to the slitting knife 1 and the lower die insert 4, respectively, by a second annular connecting portion 301.

The first and second pierce inserts 2, 3 may be identical or different in shape and structure, and may be selected and set according to actual conditions.

In some embodiments, there is also provided a stamping die comprising an upper die and a lower die, further comprising a slitting knife assembly as described above, wherein the slitting knife 1, the first and second punch inserts 2, 3 of the slitting knife assembly are mounted to the upper die, and the lower die insert 4 of the slitting knife assembly is mounted to the lower die.

The present embodiment provides a stamping die that includes the above-described slitting knife assembly and thus has at least all of the features and advantages of the slitting knife assembly described herein. The stamping die can further comprise other partial structures such as a driving mechanism, a guide mechanism and a positioning mechanism besides the notch knife assembly, and the other partial structures of the stamping die refer to the prior art and are not repeated herein.

As shown in fig. 4, in some embodiments, the lower mold includes a lower mold plate, a notch 5 is formed in the lower mold plate, and a first punched hole 6 and a second punched hole 7 are formed on two sides of the notch 5; if a notch 5 can be provided in the middle of the lower template, a first punched hole 6 and a second punched hole 7 are provided on both sides of the notch 5.

The lower end of the upper die is provided with the slotting tool 1, the first punching insert 2 and the second punching insert 3, the slotting tool 1 is correspondingly arranged above the notch 5, the first punching insert 2 and the second punching insert 3 are correspondingly arranged above the first punching hole 6 and the second punching hole 7 respectively, and the lower die insert 4 is connected with the lower end of the slotting tool 1.

The first punching hole, the second punching hole, the first punching insert 2, the second punching insert 3 and the like are arranged, so that the workpiece can be punched while being cut by the cutter, the cutting and punching integration of the workpiece is realized, and the working efficiency can be improved.

Further, the upper die can further comprise a driving mechanism, the driving mechanism is connected with the slotting cutter 1, or the driving mechanism is connected with the slotting cutter 1, the first punching insert 2 and the second punching insert 3, and the driving mechanism can drive the slotting cutter 1, the first punching insert 2 and the second punching insert 3 to move downwards for cutting. The driving mechanism may be a driving mechanism commonly used in the art and applied in a stamping die, and this embodiment is not limited thereto.

Optionally, the lower die may be provided with two guide sleeves, the upper die is provided with guide pillars corresponding to the guide sleeves one to one, and the guide pillars are slidably fitted in the guide sleeves. Therefore, the moving stability of the upper die plate can be improved, the moving stability of the slotting tool 1, the first punching insert 2, the second punching insert 3 and the like is further improved, and the cutting precision is ensured.

It should be understood that, the structures of the remaining parts, such as the driving mechanism, the guiding mechanism, or the positioning mechanism, in the upper mold or the lower mold, can all refer to the prior art, and the structures and the connection manners commonly used in the prior art can be adopted, as long as the purpose of the present application is not limited, and the present embodiment is not described in detail herein.

Therefore, the notching cutter assembly and the stamping die are simple in structure and convenient to use, the two processes can be combined into one process, and cost is saved; the middle part can be cut off in advance, the internal stress of a product piece is released, and the quality of the product is conveniently improved; the problem of difficulty in discharging the whole waste materials in the middle can be avoided, and the strength of the die is improved by making the waste materials be segmented and drawn out of the die.

Those not described in detail in this specification are within the skill of the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the utility model is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. A slitting knife assembly for a stamping die, comprising:

the cutting knife comprises a first surface, a second surface and a third surface, wherein the first surface and the second surface are parallel to each other, and the third surface is arranged between the first surface and the second surface and is connected with the first surface and the second surface;

a first pierce insert connected to the first face;

a second punch insert connected to the second face;

the lower die insert is used for being connected with the third surface, and two side ends of the lower die insert are respectively used for being connected with the first punching insert and the second punching insert.

2. The slitting knife assembly according to claim 1, wherein the lower die insert comprises a first side surface and a second side surface that are parallel to each other, and a third side surface that is disposed between and connected to the first side surface and the second side surface;

wherein the first side face has a first connecting portion connected with the first punch insert, the second side face has a second connecting portion connected with the second punch insert, and the third side face has a third connecting portion connected with the third face of the slitting knife.

3. The slitting knife assembly according to claim 2, wherein the third face of the slitting knife comprises a first slitting end and a second slitting end, the second slitting end being located above the first slitting end, the first slitting end and the second slitting end being connected with the third connecting portion, respectively.

4. The slitting knife assembly according to claim 3, wherein the difference in height of the second slitting end and the first slitting end is 2mm to 4 mm.

5. The slitting knife assembly according to claim 3, wherein the difference in height of the second slitting end and the first slitting end is 3 mm.

6. The slitting knife assembly according to claim 1 wherein the first punch insert is removably attached to the first face; and/or the second punch insert is removably attached to the second face;

the detachable connection mode comprises clamping connection or sliding connection.

7. The slitting knife assembly according to claim 1 wherein the lower end of the first punch insert has a protruding first annular connecting portion;

and/or the lower end of the second punch insert has a protruding second annular connecting portion.

8. The slitting knife assembly according to any one of claims 1-7, wherein the first face and the second face are each L-shaped.

9. A stamping die comprising an upper die and a lower die, further comprising the slitting knife assembly of any one of claims 1-8, wherein the slitting knife, the first punch insert and the second punch insert in the slitting knife assembly are mounted to the upper die and the lower die insert in the slitting knife assembly is mounted to the lower die.

10. The stamping die of claim 9, wherein the lower die comprises a lower die plate, a notch is formed in the lower die plate, and a first punching hole and a second punching hole are arranged on two sides of the notch;

the lower end of the upper die is provided with the slotting cutter, the first punching insert and the second punching insert, the slotting cutter is correspondingly arranged above the notch, the first punching insert and the second punching insert are correspondingly arranged above the first punching hole and the second punching hole respectively, and the lower die insert is connected with the lower end of the slotting cutter.

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