CN205183473U

CN205183473U - Blanking equipment

Info

Publication number: CN205183473U
Application number: CN201521047441.3U
Authority: CN
Inventors: 郑广会; 赵培振
Original assignee: LIAOCHENG XINXIN GOLDEN EMPIRE BEARING CAGES TECHNOLOGY CO LTD
Current assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2016-04-27
Anticipated expiration: 2025-12-15

Abstract

The utility model discloses a punching device, which comprises: a preliminary punching part along the moving direction of a workpiece, and the preliminary punching part is provided with a first punching punch which is adapted to the shape of a product and whose punching depth is not greater than 2/3 of the material thickness. Die; flattening part, the flattening part includes an indenter with a flat end and a support table corresponding to the indenter and used to support the material strip; a stamping blanking part, the stamping blanking part is set There is a second stamping die adapted to the shape of the product, and the punching direction of the punch in the second stamping die is opposite to that of the punch in the first stamping die. The punching equipment makes the two sides of the blanking product all be sagging surfaces, and there is no burr on the sagging surface, which directly saves the subsequent polishing procedure, thus simplifying the production process of stamping parts on the one hand. On the other hand, the problem of product rust caused by polishing is avoided.

Description

Blanking equipment

Technical Field

The utility model relates to a machinery processing technology field, more specifically say, relate to a blanking equipment.

Background

At present, blanking products are obtained by directly blanking a male die and a female die, or performing composite blanking on a punch, the female die and the male die. The blanking method and the blanking apparatus are relatively mature and simple in blanking structure, but they also have some very significant disadvantages.

The blanking gap is large in the blanking process of the existing product, the blanking part is sunken from one side of the material belt during product blanking, and the blanking part is directly punched after being pulled off from the other side of the material belt. The burr of the non-angle-collapse surface (namely the convex side of the material belt) of the product is very large, and the punched product needs to be subjected to subsequent polishing treatment so as to optimize the surface of the product and reduce the influence of the burr on subsequent procedures.

This not only causes the processing procedure of the blanking product to be more complicated, but also increases the risk of rusting of the product for the metal product because the polishing procedure generally needs to use aqueous grinding, and has adverse effect on the service life of the product; in addition, once the burrs are not removed completely, the defective conditions such as product disqualification and damage to subsequent processing equipment can be caused.

Therefore, how to provide a blanking apparatus is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a blanking apparatus to improve the quality of products and simplify the production process of the products.

In order to achieve the above object, the utility model provides a blanking equipment includes along the moving direction of work piece:

the preliminary stamping part is provided with a first stamping die which is matched with the shape of a product and has the stamping depth not more than 2/3 of the material thickness;

the flattening part comprises a pressing head with a flat end part and a bearing platform which corresponds to the pressing head and is used for bearing the material belt;

the punching and blanking part is provided with a second punching die matched with the shape of the product, and the punching direction of a punch in the second punching die is opposite to that of a punch in the first punching die.

Preferably, in the punching apparatus, a pilot pin hole punching portion is further included before the preliminary punching portion, and the pilot pin hole punching portion includes a pilot pin punch and a die corresponding to the pilot pin punch.

Preferably, in the punching apparatus, the punch of the first press die has a plurality of concentrically arranged punching blades, the punching and blanking portion includes punching and blanking stations with the same number as the punching blades, and the punch of each punching and blanking station corresponds to a different punching blade on the punch of the first press die.

Preferably, in the punching apparatus, a center hole punching portion disposed between the preliminary punching portion and the positioning pin hole punching portion is further included, and the center hole punching portion includes a center hole punch and a die corresponding to the center hole punch.

The utility model discloses a blanking equipment carries out preliminary punching press earlier to the degree of depth control of the punching press trace of preliminary punching press is being not more than 2/3 that the material is thick, then flattens again, flattens the opposite produced protruding position of punching press trace, then follows the position punching press unloading that corresponds towards the punching press trace with the opposite direction of preliminary punching press again. Therefore, two surfaces of a punched product are all corner collapse surfaces which are cut off by the punch instead of being broken by punching, so that burrs are not generated on the corner collapse surfaces, and a subsequent polishing procedure is directly omitted, so that the production process of the punched product is simplified on one hand, and the problem of rusting of the product caused by polishing is avoided on the other hand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flow chart of a burr-free blanking method disclosed in an embodiment of the present invention;

FIG. 2 is a schematic view of a processing process of the material belt;

fig. 3 is a schematic structural view of a blanking apparatus disclosed in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a product produced by using the blanking apparatus disclosed in the embodiment of the present invention.

Wherein,

1 is location pinhole punching press portion, 2 is centre bore punching press portion, 3 is preliminary punching press portion, 4 is punching press unloading portion, 41 is small products punching press unloading station, 42 is medium-sized product punching press unloading station, 43 is big products punching press unloading station, 5 is flattening portion, A is location pinhole punching press, B is the centre bore punching press, C is preliminary punching press, D is the idle work, E is flattening, F is small products punching press unloading, G is medium-sized product punching press unloading, H is big products punching press unloading, K cuts off for the waste material, M is the punching press product.

Detailed Description

The core of the utility model lies in providing a blanking equipment to can improve the quality of product, and simplify the production processes of product simultaneously.

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 work belong to the protection scope of the present invention.

The utility model discloses a no burr blanking unloading method, including following step:

s1) preliminary press

The preliminary stamping is carried out at least once so as to form stamping marks according to the shape of a product, the depth of the stamping marks is controlled to be not more than 2/3 of the thickness of the material, and the material strip is not punched through;

as will be readily understood by those skilled in the art, after the initial stamping, the side of the strip of material that contacts the punch will form the stamping mark, which is a corner collapse surface, while the other side of the strip of material will form the protrusion.

S2) flattening

After each primary punching, pressure is applied to the material belt so as to flatten the convex parts corresponding to the punching marks.

S3) punching blanking

And punching and blanking from the opposite direction of the primary punching to the position corresponding to the punching mark to form a product.

According to the technical scheme provided by the utility model, the embodiment of the utility model discloses disclosed technical scheme carries out preliminary punching press earlier to the degree of depth control of the punching press trace of preliminary punching press is being not more than 2/3 that the material is thick, then flattens again, flattens the protruding position that produces opposite the punching press trace, then from the position punching press unloading that corresponds towards the punching press trace with the opposite direction of preliminary punching press again. Therefore, two surfaces of a punched product are all corner collapse surfaces, the corner collapse surfaces are cut off by the punch instead of being broken by punching, burrs cannot be generated on the corner collapse surfaces, a subsequent polishing procedure is directly omitted, the production process of the punched part is simplified on one hand, and the problem of rusting of the product caused by polishing is avoided on the other hand, as shown in fig. 4, the end surfaces of the punched product are all corner collapse surfaces.

Through actual production verification, the number of times of preliminary punching press is suitable for once or twice, and the excessive one side of preliminary punching press number of times causes product production equipment comparatively complicated, and on the other hand the degree of depth of indentation is difficult to control, directly breaks the material area easily at the in-process of preliminary punching press.

The embodiment of the utility model provides an in disclose blanking equipment, please refer to fig. 2 and fig. 3 simultaneously, fig. 2 is the course of working schematic diagram in material area, and fig. 3 is the embodiment of the utility model discloses in the embodiment disclosed structure schematic diagram of blanking equipment, wherein do not show the step position in fig. 3.

This blanking equipment includes preliminary punching press portion 3, flattening portion 5 and punching press unloading portion 4, wherein preliminary punching press portion 3 is provided with the shape adaptation with the product, and the punching press degree of depth is not more than the thick 2/3's of material first stamping die, flattening portion 5 includes the smooth pressure head of tip and corresponds the cushion cap that sets up with the pressure head, the effect of cushion cap lies in the bearing material area, punching press unloading portion 4 is provided with the second stamping die with the shape adaptation of product, the punching press opposite direction of the drift among the second stamping die and the drift among the first stamping die, in punching press unloading portion, the product is by stamping forming, and break away from with the material area.

The punching direction of the punch in the second punching die is opposite to that of the punch in the first punching die, so that two surfaces of a punched product are both corner collapse surfaces, the corner collapse surfaces are cut off by the punches instead of being broken by punching, burrs are not generated on the corner collapse surfaces, and a subsequent polishing procedure is directly omitted, so that the production process of the punched product is simplified on the one hand, and the problem of rusting of the product caused by polishing is avoided on the other hand, as shown in fig. 4, the end surfaces of the punched product M are both corner collapse surfaces.

In the actual production process, in order to further improve the yield of the material belt, a suit cutting die is further designed, a punch head of a first stamping die is provided with a plurality of concentrically arranged blanking edges, as shown in fig. 2, in a preliminary stamping stage, stamping marks of three concentric products, namely a small product, a medium product and a large product are formed, the sizes of the three products are relatively speaking, a stamping and blanking part 4 comprises blanking and blanking stations with the same number of the blanking edges, and a punch head in each blanking and blanking station corresponds to different blanking edges on the punch head of the first stamping die.

The material strip shown in fig. 2 is subjected to preliminary stamping to form a collar-type stamping mark of a small product, a medium product and a large product, that is, a punch of the first stamping die is provided with three concentrically arranged blanking blades, and correspondingly, the stamping blanking portion should include three stamping blanking stations, the punches in the three stamping blanking stations respectively correspond to the small product blanking blade, the medium product blanking blade and the large product blanking blade, and the three stamping blanking stations respectively correspond to the small product stamping blanking station 41, the medium product stamping blanking station 42 and the large product stamping blanking station 43.

In order to further optimize the technical solution in the above embodiment and ensure the stability of the material tape in the stamping process, in the blanking apparatus disclosed in this embodiment, before the preliminary stamping portion 3, a positioning pin hole stamping portion 1 is further included, as shown in fig. 3, the positioning pin hole stamping portion 1 includes a positioning pin punch and a die corresponding to the positioning pin punch, and the positioning pin hole stamped in the material tape is as shown in fig. 2.

The annular stamped part generally needs to be stamped first to form a center hole, and for this reason, in the blanking apparatus disclosed in this embodiment, a center hole stamped part 2 is further provided between the preliminary stamped part 3 and the pilot pin hole stamped part 1, as shown in fig. 3, the center hole stamped part 2 includes a center hole punch and a die corresponding to the center hole punch, and the form after the center hole stamping is shown in fig. 2.

Of course, in an actual production process, an empty step D may be provided between two adjacent stamping steps, and the empty step D is that the material strip is moved to the position and then is not subjected to any processing operation, as shown in fig. 2, the material strip passes through a plurality of empty steps D in the processing process, the material strip needs to cut off the waste material strip after completing blanking of the product, as shown in fig. 2, and therefore, the rear part of the blanking device should be provided with a material strip cutting part.

After the whole material belt enters blanking equipment, the whole material belt sequentially passes through a positioning pinhole punching A, a center hole punching B, a primary punching C, an idle step D, a flattening E, a small product punching blanking F, an idle step D, a medium product punching blanking G, an idle step D and a large product punching blanking H, and finally the waste material cutting K is carried out.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blanking apparatus, characterized by comprising, in the direction of movement of a workpiece:

the preliminary stamping part (3) is provided with a first stamping die which is matched with the shape of a product and has the stamping depth not more than 2/3 of the material thickness;

the material belt flattening device comprises a flattening part (5), wherein the flattening part (5) comprises a pressing head with a flat end part and a bearing platform which corresponds to the pressing head and is used for bearing the material belt;

the punching and blanking part (4) is provided with a second punching die matched with the shape of the product, and the punching direction of a punch in the second punching die is opposite to that of a punch in the first punching die.

2. The blanking apparatus of claim 1, further comprising a pilot pin hole punching part (1) before the preliminary punching part (3), the pilot pin hole punching part (1) comprising a pilot pin punch and a die corresponding to the pilot pin punch.

3. The blanking apparatus of claim 2, characterized in that the punches of the first press die have a plurality of concentrically arranged blanking edges, and that the press blanking portion (4) comprises a number of blanking stations corresponding to the number of blanking edges, the punches in each blanking station corresponding to different blanking edges on the punches of the first press die.

4. The blanking apparatus of claim 3, further comprising a center hole punching part (2) provided between the preliminary punching part (3) and the pilot pin hole punching part (1), the center hole punching part (2) including a center hole punch and a die corresponding to the center hole punch.