CN215845142U

CN215845142U - Connect sword burr processing structure

Info

Publication number: CN215845142U
Application number: CN202120944748.2U
Authority: CN
Inventors: 刘玉龙; 张江涛
Original assignee: Sunrise Machinery Co ltd
Current assignee: Sunrise Machinery Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-02-18
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a cutter connecting burr machining structure which comprises an upper cutter die, a lower cutter die, an outer guide pillar, an inner fixed needle and a convex hull thimble structure. A product to be cut is arranged between the upper cutting die and the lower cutting die. The convex closure thimble structure comprises a cushion block arranged at the corner position of the product to be cut, a middle through hole arranged on the cushion block, a top column arranged in the middle through hole and extending to the surface of the cushion block, and a bulge arranged on the top column and contacted with the corner position of the product to be cut, wherein the corner position of the product to be cut is easy to generate burrs. The utility model has the effects of high qualification rate and high efficiency.

Description

Connect sword burr processing structure

Technical Field

The utility model relates to the field of hardware stamping dies, in particular to a structure for processing burrs of a connecting cutter.

Background

In the development and manufacturing process of the hardware stamping part, based on cost consideration, the process of pressing burrs is often reduced in the design of a die, the cost is saved, the trimming burrs of the part with common strength are ideal, the appearance requirement of a customer on a product can be basically met, and the due product state of the part with relatively strict requirement can not be realized even if a plurality of shaping processes are added. At present, the mode of processing product burrs mainly adopts manual grinding, and mostly takes the experience of old fitters as the main, and the general expression is immature, and the adjustment burr is big and the required time is longer, and the efficiency ratio is lower.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide a structure for efficiently machining a cutting edge and a burr with high yield.

In order to achieve the purpose, the utility model provides a structure for processing burrs of a cutter connecting, which comprises an upper cutter die, a lower cutter die, an outer guide pillar, an inner fixed needle and a convex hull thimble structure. A product to be cut is arranged between the upper cutting die and the lower cutting die. The convex closure thimble structure comprises a cushion block arranged at the corner position of the product to be cut, a middle through hole arranged on the cushion block, a top column arranged in the middle through hole and extending to the surface of the cushion block, and a bulge arranged on the top column and contacted with the corner position of the product to be cut, wherein the corner position of the product to be cut is easy to generate burrs.

In some embodiments, the protrusion is a semi-circular protrusion.

The utility model has the advantages of high qualification rate and high efficiency. Because the convex hull is designed and manufactured by a large amount of debugging of the on-site die and the personal experience of a designer, compared with the traditional technology, the time and energy are shortened, the die development cost is greatly reduced, the time is won for the comprehensive level of the products in the later period, and the qualification rate of the first sample combination of the products is greatly improved. The product appearance qualification rate is improved, the personal experience of a fitter is not relied on, manpower and material resources are reduced, the corresponding manufacturing and maintenance cost is greatly reduced, and the development period of the die is shortened. A large amount of time can be spent on other products with special requirements or more orders can be received, and the income of the company is increased. Therefore, through the research of solving the problem of the burrs of the connecting cutter, the debugging period can be obviously shortened, the early development cost of the die is reduced, the problem of the burrs at the periphery of the automobile part in the punch forming process is completely solved, and a solid foundation is laid for realizing more attractive appearance of the automobile. The effects of high qualification rate and high efficiency are achieved.

Drawings

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

fig. 2 is a schematic structural view of the convex hull thimble structure shown in fig. 1.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-2, a structure for processing a burr of a cutter includes an upper cutting die, a lower cutting die, an outer guide pillar, an inner fixed needle, and a convex-hull thimble structure 01. A product to be cut is arranged between the upper cutting die and the lower cutting die. The convex closure thimble structure 01 comprises a cushion block 11 arranged at the corner position of a product to be cut, which is easy to generate burrs, a middle through hole 12 arranged on the cushion block 11, a top column 13 arranged in the middle through hole 12 and extending to the surface of the cushion block 11, and a bulge 14 arranged on the top column 13 and contacted with the corner position of the product to be cut, which is easy to generate burrs. The projections 14 are semicircular projections.

Through a large amount of debugging of the on-site die, the designer carries out design and manufacture of the convex hull by personal experience, compared with the traditional technology, the time and energy are shortened, the die development cost is greatly reduced, time is won for the comprehensive level of the products in the later period, and the qualification rate of the first sample combination of the products is greatly improved. The product appearance qualification rate is improved, the personal experience of a fitter is not relied on, manpower and material resources are reduced, the corresponding manufacturing and maintenance cost is greatly reduced, and the development period of the die is shortened. A large amount of time can be spent on other products with special requirements or more orders can be received, and the income of the company is increased. Therefore, through the research of solving the problem of the burrs of the connecting cutter, the debugging period can be obviously shortened, the early development cost of the die is reduced, the problem of the burrs at the periphery of the automobile part in the punch forming process is completely solved, and a solid foundation is laid for realizing more attractive appearance of the automobile. The effects of high qualification rate and high efficiency are achieved.

The parts are debugged and qualified through the technology of connecting the cutter and the burrs and are produced in large quantities at present. The research on the cutter and burr is popular and easy to understand for a new person who just contacts a mold, i.e. the research is liked to be called 'hidden burr', and before an excellent designer designs a part, the problem that whether the part has the cutter and burr or not is judged, the position of the burr is approximate, the height of the burr is approximate, and once the problem is solved, how to overcome and avoid the problem needs to be considered in the early design. After various problems are considered, the problem that the burr height of a cutter connecting opening is over-poor at the periphery of a product is still caused by the detection of a checking tool and the observation of naked eyes of a part which is stamped for the first time, so that the problem that the cutter connecting burr height is over-poor at the periphery of the product is solved by the method, if the part is a simple part, a simple and single flat plate part and a bending forming type can be easily determined at one time, the method is not mentioned, and for the product with a complicated shape, the surface of the product is changed greatly in the forming process, the position of a cutter connecting is not easy to grasp, and the problem that the cutter connecting burr height is not needed to be solved after the product is trimmed and debugged. Otherwise, the edge of the part is cut unstably, the die structure is directly rectified, the part can be idle, and no effect is achieved. After the preparation of all aspects of work is finished, the trimming molded surface is basically qualified without great change. The position of the connecting cutter of the mold is required to be rectified, if the design is carried out, a shaping process is not carried out, and a set of shaping insert can be added in the mold to ensure that the mold is completely closed. If the shaping process is carried out before, the shaping insert is required to be reformed, and a convex-closure thimble is added at the position of a product cutter connecting position, namely the method for hiding burrs is adopted. And (4) replacing the old insert and newly manufacturing the convex hull punch through a line cutting and numerical control technology. After the assembly is finished, the bench worker grinds and debugs, and the problem of burrs of a tool connecting opening at the position of a product is solved.

After the first batch of products are punched, the checking fixture is often placed to roughly measure the surface-edge gap of the part, the peripheral burrs of the part are judged greatly, and if the burrs of a cutting edge are too large and influence the appearance of the product, the die needs to be perfectly modified. The traditional method is to check whether the blanking clearance of the product is proper, whether the burr height meets the requirements of customers or not, and whether the grinding process is necessary to be added if the appearance requirements cannot be met. Therefore, in order to reduce debugging time and die cost, the die structure needs to be changed, and the structure of the convex hull thimble is added in the process before the product is cut off, so that the burr problem is solved in advance. In short, the technology for solving the problem of the cutter-connecting burrs is a technology for punching qualified products by adjusting the structure of a die and adding an auxiliary ejector pin punch to eliminate the burrs in advance.

This technical analysis uses and mainly changes original mould structure, and at the preceding process of cutting off the product, increases convex closure thimble drift, solves the burr elimination in advance, and concrete thin as follows: when the position of the ejector pin punch is selected to be added, the die must be punched, the upper and lower molded surfaces are completely closed, and a recess can be formed in the cutting position of a product, so that burrs are eliminated, and the appearance requirement of the product is met.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the utility model.

Claims

1. A cutter connecting burr processing structure is characterized by comprising an upper cutter die, a lower cutter die, an outer guide pillar, an inner fixed needle and a convex hull thimble structure;

a product to be cut is arranged between the upper cutting die and the lower cutting die;

the convex closure thimble structure comprises a cushion block arranged at the corner position of the product to be cut, a middle through hole arranged on the cushion block, a top column arranged in the middle through hole and extending to a cushion block table, and a bulge arranged on the top column and contacted with the corner position of the product to be cut, wherein the burr is easy to generate.

2. A structure for processing a tool and burr according to claim 1, wherein said projection is a semicircular projection.