CN214391873U - Burr pressing die - Google Patents

Abstract

The utility model provides a deburring mould, including last mould and lower mould, it includes the first surface to go up the mould, the first surface is inside sunken to form the constant head tank, the lower mould includes base and direction reference column, the base includes the second surface, the second surface with the first surface is relative, the direction reference column includes fixed part, guide part and is located the fixed part with inclined plane portion between the guide part, bury in the fixed part in the base, the guide part and inclined plane portion protrusion set up in the second surface, the guide part is used for inserting in the constant head tank, the first surface centers on the region of constant head tank with inclined plane portion is used for jointly suppressing the blanking edge of blanking spare for the angle of collapsing. The utility model provides a blanking piece is conveniently placed to the deburring mould and can prevent the off normal of blanking piece, and can effectively get rid of the deckle edge of blanking piece.

Description

Burr pressing die

Technical Field

The utility model relates to the technical field of machining, especially, relate to a deburring mould.

Background

In the forming of a stamping die, phenomena such as burrs often appear on a processed product, and the burrs are usually removed by electric polishing in the follow-up process. However, when the burr is too large, the conventional electropolishing process cannot completely remove the burr, which also increases the production cost. In addition, when the blanking step is large, the position of the product on the die is prone to deviation, and the die is difficult to accurately position the burrs.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can effectively get rid of unedged deburring mould.

The utility model provides a deburring mould, including last mould and lower mould, it includes the first surface to go up the mould, the first surface is inside sunken to form the constant head tank, the lower mould includes base and direction reference column, the base includes the second surface, the second surface with the first surface is relative, the direction reference column includes fixed part, guide part and is located the fixed part with inclined plane portion between the guide part, bury in the fixed part in the base, the guide part and inclined plane portion protrusion set up in the second surface, the guide part is used for inserting in the constant head tank, the first surface centers on the region of constant head tank with inclined plane portion is used for getting rid of the deckle edge at the blanking edge of blanking spare jointly.

Further, the guiding part comprises a cylinder with one end connected with the inclined plane part and a frustum located at the other end of the cylinder.

Furthermore, the lower die further comprises a stripping device and an elastic device, the stripping device is arranged on the lower die in a sliding mode, the elastic device is embedded in the base and connected with the stripping device, and the elastic device is used for popping up the stripping device when the upper die is separated from the lower die so as to separate the blanking piece from the lower die.

Further, the material removing device is a material removing pin, and the elastic device is a spring.

Further, the deburring die further comprises a guide block, the guide block is arranged on the upper die and used for abutting against the side face of the base, and the guide block is used for guiding the upper die and the lower die when the upper die and the lower die are closed.

Further, the surface of the guide block close to the lower die is an inclined surface.

Furthermore, the number of the guide blocks is at least two, and the two guide blocks are respectively positioned on different side edges of the upper die.

Further, go up the mould and/or the lower mould still includes integrated into one piece's bulge, the bulge pass through the chamfer with go up the mould or the lower mould is connected, and with blanking edge on the blanking spare is corresponding, be used for with corresponding the deckle edge of blanking edge is got rid of.

Further, the height of the protrusion is equal to or less than the thickness of the blanking member.

Further, the guiding and positioning column is detachable relative to the base.

The utility model discloses a set up on the direction reference column protrusion in the guide part of the second surface of lower mould, the placing of the blanking piece of being convenient for can prevent the blanking piece is placed removal and off normal position behind the lower mould have improved blanking efficiency and yields. And the area of the first surface surrounding the positioning groove and the inclined plane part together press the blanking edge of the blanking piece into a collapsed angle, when the rough edge of the blanking piece is too large, the rough edge of the blanking piece can be effectively removed, the electric polishing process is omitted, and therefore the production cost is reduced. In addition, when the upper die and the lower die are matched, the guide part can guide the upper die and the lower die, so that the matching precision of the upper die and the lower die is improved, and the upper die and the lower die are prevented from deviating when matched.

Drawings

Fig. 1 is a schematic structural view of a deburring mold according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the deburring die shown in fig. 1.

Fig. 3 is a sectional view and a partially enlarged view of the deburring mold shown in fig. 1 taken along III-III.

Fig. 4 is a schematic structural view of the upper mold shown in fig. 1.

Fig. 5 is a schematic structural view and a partial enlarged view of the guiding and positioning post shown in fig. 1.

Figure 6 is a cross-sectional view along IV-IV and a partial enlarged view of the pilot post shown in figure 5.

Description of the main elements

Burring die 100

Upper die 10

First surface 101

Locating slot 11

Lower die 20

Base 21

Second surface 210

Guiding positioning column 22

Fixing part 221

Guide 222

Cylinder 2221

Frustum 2222

Bevel 223

Stripping device 23

Projection 24

Blanking piece 30

Guide block 40

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description is made on the soaking plate provided by the present invention with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1, a deburring mold 100 according to a preferred embodiment of the present invention includes an upper mold 10, a lower mold 20, and a guide block 40.

Referring to fig. 2 to 4, the upper mold 10 includes a first surface 101. Wherein the first surface 101 is recessed inwardly to form a positioning slot 11. In the present embodiment, the number of the positioning grooves 11 is two.

Referring to fig. 2 again, the lower mold 20 includes a base 21, a guiding and positioning column 22, a stripping device 23, and an elastic device (not shown).

The base 21 includes a second surface 210, the second surface 210 being opposite to the first surface 101.

Referring to fig. 3, 5 and 6, the guiding positioning column 22 is detachable relative to the base 21. In the present embodiment, the guiding positioning column 22 includes a fixing portion 221, a guiding portion 222, and an inclined portion 223 located between the fixing portion 221 and the guiding portion 222. The fixing portion 221 is embedded in the base 21. The fixing portion 221 is used for fixing the guide portion 222 and the inclined surface portion 223. The guide portion 222 and the inclined surface portion 223 are protrudingly disposed on the second surface 210, and the guide portion 222 is used for being inserted into the positioning groove 11. In the present embodiment, the guiding portion 222 includes a cylindrical body 2221 having one end connected to the inclined surface portion 223, and a frustum 2222 located at the other end of the cylindrical body 2221. The diameter of the cylindrical body 2221 is equal to the diameter of the inclined surface portion 223 adjacent to the cylindrical body 2221, the diameter of the truncated cone 2222 adjacent to the cylindrical body 2221 is equal to the diameter of the cylindrical body 2221, and the diameter of the cylindrical body 2221 is substantially equal to or slightly smaller than the diameter of the hole of the blanking member 30 from which burr is to be removed and the diameter of the positioning groove 11 of the upper die 10. The inclined surface portion 223 is in a frustum shape, the diameter of the upper end thereof is smaller than that of the lower end thereof, and the diameter of the lower end thereof is larger than that of the hole of the blanking member 30 from which burrs need to be removed. The diameter of the lower end of the slope part 223 is equal to the diameter of the fixing part 221 in the illustrated embodiment.

It should be noted that, in other embodiments, the diameter of the lower end of the bevel portion 223 may also be smaller or larger than the diameter of the fixing portion 221, and the diameter of the bevel portion 223 is determined according to the blanking edge of the blanking member 30 to which the burr needs to be removed. The area of the first surface 101 surrounding the positioning groove 11 and the ramp portion 223 are used together to press the blanking edge of the blanking member 30 into a collapsed corner, thereby removing the burrs of the blanking member 30.

It should be noted that the cross-section of the fixing portion 221, the guide portion 222 and the inclined surface portion 223 of the guide positioning column 22 in the above embodiment may also be non-circular, such as rectangular, polygonal, etc., and is not limited herein, as long as the shape is adapted to the shape of the punching edge of the punching member 30.

Referring to fig. 2 and 4, in the present embodiment, the upper mold 10 and/or the lower mold 20 further include an integrally formed protrusion 24. Wherein the protruding portion 24 is connected to the upper die 10 or the lower die 20 by chamfering, and corresponds to a blanking edge on the blanking member 30, for removing burrs of the corresponding blanking edge. The purpose of providing the protruding portion 24 is to eliminate burrs by using the guiding positioning posts 22 for each part when there are a plurality of parts requiring burrs of the blanking member 30, and to remove burrs by using the protruding portion 24 for other parts as long as there are a certain number of the guiding positioning posts 22 enough to position and guide the blanking member 30. Because the protruding part 24 with the lower mould 20 or go up mould 10 integrated into one piece, simplified the structure of the deburring mould 100, practiced thrift the manufacturing cost of deburring mould 100. The height of the projection 24 is equal to or less than the thickness of the blanking member 30. Since the height of the protruding portion 24 is equal to or less than the thickness of the blanking member 30, it is not necessary to provide a groove on the other half of the mold corresponding to the protruding portion 24, which further simplifies the structure of the deburring mold 100 and does not affect the mold clamping of the upper mold 10 and the lower mold 20.

Referring to fig. 2 again, the stripper 23 is slidably disposed on the lower mold 20. In the present embodiment, the stripping device 23 is a stripping pin. The elastic device is embedded in the base 21 and connected with the stripping device 23. In this embodiment, the elastic means is a spring. The stripper device 23 and the elastic device are used to jointly eject the deflashed blanking member 30 a certain distance upward from the lower die 20, so as to remove the blanking member 30 from the lower die 20.

The guide block 40 is disposed on the upper die 10 and used for abutting against a side surface of the base 21. The guide block 40 is used to guide the upper mold 10 and the lower mold 20 when the upper mold 10 and the lower mold 20 are clamped. In this embodiment, the surface of the guide block 40 adjacent to the lower mold 20 is a slope. The slope facilitates the guiding of the guide block 40. Wherein the number of the guide blocks 40 is at least two. Specifically, the two guide blocks 40 are respectively located on different sides of the upper mold 10, so that the upper mold 10 and the lower mold 20 can be guided from at least two directions.

The utility model discloses a set up on the direction reference column 22 protrusion in the second surface of lower mould 20 the guide part 222, be convenient for placing of blanking piece 30 can prevent moreover blanking piece 30 is placed removal and off normal position behind the lower mould 20 have improved blanking efficiency and yields. And the area of the first surface 101 surrounding the positioning groove 11 and the inclined surface portion 223 together press the blanking edge of the blanking member 30 into a collapsed corner, when the burr of the blanking member 30 is too large, the burr of the blanking member 30 can be effectively removed, the electro-polishing process is omitted, and thus the production cost is reduced. Further, when the upper mold 10 and the lower mold 20 are clamped, the guide portion 222 can guide the upper mold 10 and the lower mold 20, thereby improving the clamping accuracy of the upper mold 10 and the lower mold 20 and preventing the upper mold 10 and the lower mold 20 from being misaligned when clamped.

The above description is only an optimized embodiment of the present invention, but the present invention is not limited to this embodiment in practical application. Other variations and modifications of the present invention will be apparent to those skilled in the art, which are within the scope of the present invention.

Claims (10)

1. The utility model provides a deburring mould, includes mould and lower mould, it includes the first surface to go up the mould, a serial communication port, the first surface is inside sunken to form the constant head tank, the lower mould includes base and direction reference column, the base includes the second surface, the second surface with the first surface is relative, the direction reference column includes fixed part, guide part and is located the fixed part with inclined plane portion between the guide part, bury in the fixed part in the base, the guide part and inclined plane portion protrusion set up in the second surface, the guide part is used for inserting in the constant head tank, the first surface centers on the region of constant head tank with inclined plane portion is used for jointly getting rid of the deckle edge at blanking spare's blanking edge.

2. A deburring die as claimed in claim 1 wherein said guide portion comprises a cylindrical body having one end connected to said bevel portion and a frustum at the other end of said cylindrical body.

3. A deburring die as claimed in claim 1 wherein said lower die further comprises stripper means slidably disposed on said lower die and resilient means embedded in said base and connected to said stripper means for ejecting said stripper means to separate said blanking member from said lower die when said upper die and said lower die are separated.

4. A deburring die as claimed in claim 3 wherein said stripping means is a stripping pin and said resilient means is a spring.

5. The deburring die of claim 1, further comprising a guide block disposed on the upper die and configured to abut against a side surface of the base, the guide block configured to guide the upper die and the lower die when the upper die and the lower die are clamped.

6. A deburring die as claimed in claim 5 wherein the surface of said guide block adjacent said lower die is beveled.

7. A deburring die as claimed in claim 5 wherein the number of said guide blocks is at least two, and two of said guide blocks are located on different sides of said upper die.

8. The deburring die of claim 1, wherein the upper die and/or the lower die further comprises an integrally formed protrusion connected to the upper die or the lower die by a chamfer and corresponding to a blanking edge on the blanking member for deburring the corresponding blanking edge.

9. A burring die according to claim 8, wherein the height of the projecting portion is equal to or less than the thickness of the blanking member.

10. The flash mold of claim 1 wherein the guide locator posts are removable with respect to the base.

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