CN211803309U

CN211803309U - Detachable positioning blanking punch and die using same

Info

Publication number: CN211803309U
Application number: CN201922218508.XU
Authority: CN
Inventors: 钱晓晨; 骆兴顺
Original assignee: Suzhou Helin Micro Technology Co ltd
Current assignee: Suzhou Helin Micro Technology Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-10-30
Anticipated expiration: 2029-12-12

Abstract

The utility model provides a mould of removable fraction location unloading drift and applied this drift, the unloading drift includes the drift body, this internal first gas pocket passageway of having seted up of drift, the inside bonding of lower extreme of first gas pocket passageway is provided with location profile modeling head, the center of location profile modeling head seted up with the second gas pocket passageway of first gas pocket passageway UNICOM. The beneficial effects of the utility model are embodied in: the height of the positioning profiling head in the split type punch is relatively low, and the blowing holes can be formed, so that products can be smoothly blown out of a blanking knife edge when the split type punch is applied in mass production, and the situation that the blanking knife edge is damaged due to product blocking cannot occur. The split structure is relatively simple in processing technology, facilitates the regular maintenance of the blanking knife edge, and does not cause the damage and the scrapping of the whole part. Through the die using the punch, the actual efficiency of the die is greatly improved, the production cost is reduced, and the practical verification shows that the SPM (stroke per minute) is improved by 30 percent.

Description

Detachable positioning blanking punch and die using same

Technical Field

The utility model belongs to the technical field of the mould processing, concretely relates to but mould of split type location unloading drift and applied this drift.

Background

For a stretched product with high precision and small volume, after multi-step forming, an integral positioning blanking punch is usually adopted to complete the separation of the product and a material belt. The existing blanking punch is generally shown in fig. 1 and is an integral blanking punch, which comprises a punch body 1 and a profiling head 11 arranged at the bottom end of the punch body, wherein the punching process comprises the steps that a material belt enters a die, a punch drives an upper die to move, a positioning needle enters the material belt, a stripper plate and a lower die plate are closed, the positioning needle completes positioning, after the actions, the integral blanking positioning punch continues to move, and a product is cut off. The integral positioning blanking punch has the following disadvantages in mass production: the integral positioning blanking punch is too high in overall height, so that the integral positioning blanking punch cannot blow holes, and products are easily clamped in blanking knife edges during mass production, so that the blanking knife edges are easily damaged; meanwhile, the product 2 is small in size, so that the profiling head 11 is also small in size, and the blanking knife edge cannot be maintained and repaired regularly due to the integral structure of the blanking knife edge and the profiling head 11 with the small size, so that the cost of the die is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a detachable positioning blanking punch and a die using the punch.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a removable fraction location unloading drift, includes the drift body, this internal first gas pocket passageway that has seted up of drift, the inside bonding of lower extreme of first gas pocket passageway is provided with location profile modeling head, the center of location profile modeling head seted up with the second gas pocket passageway of first gas pocket passageway UNICOM.

Preferably, the positioning profiling head comprises a positioning end fixed with the punch body and a profiling end arranged at the lower part of the positioning end.

Preferably, the upper end diameter of the profiling end is larger than the diameter of the first air hole channel and smaller than the diameter of the lower end of the punch body.

Preferably, the contoured end is disposed below the punch body bottom.

Preferably, the top surface of the contoured end is provided as a flat surface.

Preferably, the above mould of removable fraction location unloading drift, including the last mould and the lower mould of mutually supporting, go up the mould and include the upper die base, set up the cope match-plate pattern in upper die base below, go up the mould in seted up with the air vent of the interior gas pocket passageway UNICOM of unloading drift, the one end and the external air-breather UNICOM of air vent.

The beneficial effects of the utility model are embodied in: the height of the positioning profiling head in the split type punch is relatively low, and the blowing holes can be formed, so that products can be smoothly blown out of a blanking knife edge when the split type punch is applied in mass production, and the situation that the blanking knife edge is damaged due to product blocking cannot occur. The split structure is relatively simple in processing technology, facilitates the regular maintenance of the blanking knife edge, and does not cause the damage and the scrapping of the whole part. Through the die using the punch, the actual efficiency of the die is greatly improved, the production cost is reduced, and the practical verification shows that the SPM (stroke per minute) is improved by 30 percent.

Drawings

FIG. 1: the utility model discloses prior art's integral drift structure sketch map.

FIG. 2: the utility model discloses a blanking drift structure schematic diagram.

FIG. 3: fig. 2 is an enlarged view of the structure of the lower end of the blanking punch.

FIG. 4: fig. 2 is a top view.

FIG. 5: the utility model discloses the structure sketch map of location profile modeling head.

FIG. 6: use the utility model discloses the mould structure schematic diagram of unloading drift.

Detailed Description

The technical scheme of the utility model is specifically explained below in connection with the embodiment, the utility model discloses a but removable fraction location unloading drift combines fig. 2-5 to show, including drift body 1, first pore passageway 12 has been seted up in the drift body 1, the inside bonding of lower extreme of first pore passageway 12 is provided with location profile modeling head 2, the second pore passageway that communicates with first pore passageway 12 is seted up at the center of location profile modeling head 2. The first air vent passage diameter is greater than the second air vent passage diameter.

Specifically, the positioning profiling head 2 comprises a positioning end 22 fixed with the punch body 1 and a profiling end 21 arranged at the lower part of the positioning end 22. During assembly, the surface of the positioning end 22 is uniformly coated with an adhesive and then inserted into the first air hole channel 12 at the lower end of the punch body 1. The specific operation steps are as follows: glue is squeezed into the jig, the positioning end 22 is rotated in the jig filled with the glue until the positioning end 22 is uniformly coated with the glue, the punch body 1 is fixed by the jig, the positioning end 22 coated with the glue is inserted into the punch body 1, the punch body 1 is rotated clockwise for three times, then the punch body is rotated anticlockwise for three times, and then the punch body is statically placed for a period of time until the glue is dried. The specific bonding rotation time and the standing time are adjusted according to practical application. For bonding, the diameter of the first pore channel 12 and the diameter of the locating end 22 satisfy the following relationship: b is_Hole(s)-B_Stator=0.05mm, wherein B_Hole(s)Is the diameter of the first pore channel 12, B_StatorTo locate the diameter of end 22. In addition, in order to prevent the copying end 21 from entering the punch body 1 in a stressed state and facilitate processing products, the top surface of the copying end 21 is set to be a plane, and the diameter of the upper end of the copying end 21 is larger than that of the first air hole channel 12 and smaller than that of the lower end of the punch body 1.

The utility model discloses the internal diameter of tensile product that is suitable for needs to satisfy following relation: c_{Inner part}≧2D+E_{Qi (Qi)}+0.2mm, wherein D is the distance between the inner wall of the positioning end 22 and the inner wall of the second air hole channel, and the minimum value of D is 0.3 mm; e_{Qi (Qi)}For the diameter of second gas pocket passageway, its minimum is 0.2mm, therefore the utility model discloses a but processing of split type location unloading drift can satisfy the internal diameter and be not less than 1mm and be not more than 2 mm's small-size tensile product. In addition, the profiling end 21 of the positioning profiling head needs to fix a product before finishing blanking, so that the product is not deviated when being cut off, and the diameter F of the profiling end 21 is slightly smaller than the inner diameter C of a stretched product_{Inner part}And the difference between the two is 0.02mm, namely F = C_{Inner part}-0.02。

The utility model discloses still disclose and used more than a mould of removable fraction location unloading drift, it is shown to combine figure 6, including the last mould and the lower mould of mutually supporting, go up the mould and include upper die base 4, set up in cope match-plate pattern 5 of 4 below of upper die base, go up the mould in seted up with the air vent 6 of the interior gas pocket passageway UNICOM of unloading drift, the one end and the external air breather equipment UNICOM of air vent 6. The working principle is as follows: the material belt firstly enters a die, a punch press drives an upper die to move, a stripping plate and a lower die plate are closed, after the actions are completed, a blanking punch moves, a positioning profiling head firstly enters a stretching inner cavity of a product, after the product is positioned, the blanking punch continues to move downwards, the product is cut off and enters a blanking knife edge, meanwhile, air flow enters the die through an air nozzle, the air flow sequentially passes through a first air hole channel and a second air hole channel on the blanking punch and is blown to the bottom of the product, and the product is subjected to force from the air flow, so that the die is smoothly blown out. The utility model discloses an other structures of mould and open, compound die process etc. all are similar with current structure, and do not belong to the utility model discloses a protection is key, so no longer give unnecessary details here.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Of course, the present invention has many specific embodiments, which are not listed here. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

Claims

1. The utility model provides a removable fraction location unloading drift which characterized in that: including the drift body, this internal first pore passageway that has seted up of drift, the inside bonding of lower extreme of first pore passageway is provided with the location profile modeling head, the center of location profile modeling head seted up with the second pore passageway of first pore passageway UNICOM.

2. A detachable positioning blanking punch as claimed in claim 1, wherein: the positioning profiling head comprises a positioning end used for being fixed with the punch body and a profiling end arranged on the lower portion of the positioning end.

3. A detachable positioning blanking punch as claimed in claim 2, wherein: the diameter of the upper end of the profiling end is larger than that of the first air hole channel and smaller than that of the lower end of the punch body.

4. A detachable positioning blanking punch as claimed in claim 2, wherein: the profiling end is arranged below the bottom of the punch body.

5. A detachable positioning blanking punch as claimed in claim 2, wherein: the top surface of the profiling end is set to be a plane.

6. A die using a detachable positioning blanking punch according to any one of claims 1 to 5, characterized in that: including the last mould and the lower mould of mutually supporting, go up the mould and include the upper die base, set up the cope match-plate pattern in upper die base below, go up the mould in seted up with the air vent of the gas pocket passageway UNICOM in the unloading drift, the one end and the external air-breather UNICOM of air vent.