CN212598290U - Progressive die capable of rapidly replacing punching needle - Google Patents

Abstract

The application discloses a progressive die capable of quickly replacing a punching needle, which comprises an upper die, a lower die, a discharging structure and a punching needle quick replacement device; the lower die and the upper die are arranged oppositely; the discharging structure is arranged between the upper die and the lower die; the quick punching needle replacing device is arranged between the discharging structure and the upper die and comprises a plurality of punching needles, and the length of the punching needles protruding out of the upper die can be adjusted by the quick punching needle replacing device. The length of the convex upper die of the punching needle is adjusted through the quick-changing device of the punching needle, so that the original product which is formed by one die is optimized into a plurality of products which are formed by one die in the production process of series products, the die change times and the die change time in the die quantity and the production process are reduced, the tolerance precision requirement of the same series products on the same position size is ensured, and the development and manufacturing cost is reduced.

Description

Progressive die capable of rapidly replacing punching needle

Technical Field

The application relates to various machining progressive dies with punched holes, in particular to a progressive die capable of quickly replacing punching needles in production and machining of series products.

Background

The progressive die is a more advanced die type in the existing stamping production process, realizes the automatic production of multiple stamping processes together, and overcomes the defects that a single-process die needs multiple sets and multiple manual operations. The products produced by the progressive die have the characteristics of high efficiency and good quality, are supplied in large batch to meet the requirements of large-scale products, reduce operators and improve the production management of companies, are an important direction for the design and development of the existing dies in China, and play an important role in the die industry.

The change of traditional progressive die drift that has the station of punching a hole generally adopts the change mode of mold insert on the template position, and the time of spending is longer when dismouting mold insert of this kind of change mode, must influence production efficiency, and in addition, the precision that resets of mold insert does not have quick replacement formula height during the dismouting, and the mold insert that changes down is difficult to be kept, loses the waste that causes material and fund easily, and the cost to the maintenance of mould has still been improved moreover.

SUMMERY OF THE UTILITY MODEL

The application discloses quick replacement impact pin type upgrades mould has solved the problem of series products sharing mould.

In order to achieve the purpose, the application discloses a progressive die capable of quickly replacing a punching needle, which comprises an upper die, a lower die, a discharging structure and a punching needle quick replacement device; the lower die and the upper die are arranged oppositely; the discharging structure is arranged between the upper die and the lower die; the quick punching needle replacing device is arranged between the discharging structure and the upper die and comprises a plurality of punching needles, and the length of the punching needles protruding out of the upper die can be adjusted by the quick punching needle replacing device.

Optionally, the upper die comprises an upper die base, an upper back plate, an upper base plate and an upper fixing plate, which are sequentially arranged in the direction from the upper die to the lower die; the punch pin quick replacement device comprises a push plate, and the push plate is arranged between the upper back plate and the upper fixing plate; the discharging structure comprises a material plate;

before the progressive die does not work, pushing the push plate into the progressive die until the outer edge of the push plate is flush with the outer edge of the upper back plate; when the progressive die works, the punching needle punches through the material plate, the material discharging plate synchronously presses materials and returns materials, and punching waste materials drop downwards;

before the progressive die does not work, pulling the push plate out of the progressive die until the length of the punch pin protruding out of the upper die is changed; when the progressive die starts to work, the punching needle does not punch through the material plate, the material discharging plate synchronously presses materials and returns materials, and no punching waste exists.

Optionally, the punch pin quick replacement device includes a first bolt, and the first bolt penetrates through the push plate to fix the push plate and the upper back plate.

Optionally, the push plate comprises a groove, the upper fixing plate comprises a second bolt, a punching needle base plate and a punching needle fixing plate, the punching needle base plate is arranged on the punching needle fixing plate, and the second bolt is used for fixing the punching needle base plate and the punching needle.

Optionally, a limiting hanging plate is arranged between the material plate and the push plate, a third bolt is arranged on the limiting hanging plate, the third bolt penetrates through the limiting hanging plate to fixedly connect the limiting hanging plate with the upper fixing plate, and one end, close to the push plate, of the limiting hanging plate is flush with the upper fixing plate.

Optionally, the unloading structure includes an unloading cover plate and an unloading plate, the unloading cover plate is disposed between the upper fixing plate and the unloading plate, and the lower die includes a cavity plate, a lower bolster and a lower die base, which are sequentially disposed under the unloading plate; the upper die base is fixedly provided with a nitrogen spring for pushing the discharging cover plate to move, and the concave die plate is internally provided with a punching insert

This application sets up one and is dashed needle quick replacement device and be in for other progressive dies the structure of unloading with go up between the mould, it is adjustable to dash needle quick replacement device dash the protruding length of going up the mould of needle, so obtain the product more than two kinds or two kinds on with vice mould to effectual production efficiency that has promoted has reduced mould quantity, retooling number of times and retooling time through the quick replacement device application moreover, has reduced the administrative cost of mould.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of a quick change punch pin configuration of the present application;

FIG. 2 is a layout of the mold design of the present application;

FIG. 3 is a schematic structural view of the push plate of the present application when pushed in;

FIG. 4 is a schematic structural view of the push plate of the present application as it exits;

fig. 5 is a schematic structural diagram of a plurality of work stations in the application.

Wherein, fig. 1 to fig. 4, 301, an upper die base; 302. an upper back plate; 303. an upper base plate; 304. an upper fixing plate; 305. a discharge cover plate; 306. a first pin; 307. a stripper plate; 308. a cavity plate; 309. a lower base plate; 310. a lower die holder; 311. pushing the plate; 312. a first bolt; 313. punching a needle backing plate; 314. a punching needle fixing plate; 315. a second bolt; 316. punching a needle; 317. a material plate; 318. a second pin; 319. punching the insert; 320. a second screw; 321. a third bolt; 322. a limiting hanging plate; 323. a third pin; 324. a nitrogen spring; 325. cushion blocks; 326. a pin.

Detailed Description

It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.

Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The present application will be described in more detail below with reference to the accompanying drawings and examples.

As shown in fig. 1, as an embodiment of the present application, a progressive die for fast replacing a punch pin is disclosed, which comprises an upper die, a lower die, a discharging structure and a punch pin fast replacing device; the lower die and the upper die are arranged oppositely; the discharging structure is arranged between the upper die and the lower die; the quick punching needle replacing device is arranged between the discharging structure and the upper die and comprises a plurality of punching needles, and the length of the punching needles protruding out of the upper die can be adjusted by the quick punching needle replacing device.

Further, the upper die comprises an upper die base, an upper back plate, an upper base plate and an upper fixing plate which are sequentially arranged in the direction from the upper die to the lower die; the punch pin quick replacement device comprises a push plate, and the push plate is arranged between the upper back plate and the upper fixing plate; the discharging structure comprises a material plate; before the progressive die does not work, the push plate is manually pushed into the progressive die, and of course, the punch pin quick replacement device can also be pulled out of the progressive die in a motorized manner, for example, a driving structure is arranged beside the progressive die to push the push plate until the outer edge of the push plate is flush with the outer edge of the upper back plate; when the progressive die works, the punching needle punches through the material plate, the material discharging plate synchronously presses materials and returns materials, and punching waste materials drop downwards;

before the progressive die starts to work, the push plate is pulled out of the progressive die manually, and of course, the punch pin quick replacement device can also be pulled out of the progressive die in a motorized mode, for example, a driving structure is arranged beside the progressive die to pull the push plate until the length of the punch pin protruding out of the upper die changes; when the progressive die starts to work, the punching needle does not punch through the material plate, the material discharging plate synchronously presses materials and returns materials, and no punching waste exists.

Specifically, the fast punching pin replacing device is manually operated, the fast punching pin replacing device comprises a plurality of punching pins, the punching pins correspond to punching sizes of series products, specifically, the progressive die comprises a plurality of punching stations, the fast punching pin replacing device is correspondingly arranged on the punching stations, the fast punching pin replacing device comprises an adjustable punching pin fixing plate part 314, an adjustable punching pin backing plate 313 and an adjustable push plate 311, the punching pin backing plate is arranged on the punching pin fixing plate, the second bolt is used for fixing the punching pin backing plate and the punching pins, the fast replacing device is arranged in an upper fixing plate 304, the upper fixing plate 304 is upwards and sequentially connected with an upper backing plate 303, an upper back plate 302, an upper die base 301, and the push plate 311 is arranged in the upper backing plate 303, a discharging cover plate is arranged below the upper fixing plate, and the discharging cover plate is fixedly connected with a discharging plate, a limiting hanging plate is arranged between the discharging cover plate and the upper fixing plate, and a nitrogen spring for pushing the discharging cover plate to move is fixedly arranged on the upper die base; the lower die of the punching pin quick replacement device is arranged on the lower die base, a lower back plate, a lower cushion plate and a concave die plate which are fixed on the lower die base are sequentially overlapped, a punching insert is arranged in the concave die plate, the punching insert is generally a pin, when the punching pin quick replacement device does not work, the upper die part of a progressive die is separated from a discharging cover plate, a punching pin is contacted with a material plate, and when the punching pin quick replacement device works, the upper die moves downwards to press the punching pin into the material plate; compared with the prior art, the new quick replacement mode has the following advantages: 1. the time spent on replacing the insert is short, 2, the replacement accuracy of the insert is higher than that of the traditional insert, 3, the replaced insert does not leave the template and is not easy to lose, and 4, the number of the dies is reduced, and the management cost of the dies is reduced.

Furthermore, the punch pin quick replacement device comprises a first bolt, the bolt penetrates through the push plate and is used for fixing the push plate and the upper back plate, and the punch pin quick replacement device is fixed through the first bolt, so that the situation that the precision of a die is influenced due to the fact that the push plate is loosened when a progressive die works is prevented; in addition, the flitch with be provided with spacing link plate between the push pedal, be provided with the third bolt on the spacing link plate, the third bolt passes spacing link plate will spacing link plate with an upper fixed plate carries out fixed connection, spacing link plate is close to the one end of push pedal with an upper fixed plate flushes, when the cope match-plate pattern is exerted pressure on the push pedal, spacing link plate can support the push pedal prevents to split.

In addition, when the push plate is pulled out of the progressive die, a part of the push plate exceeds the upper fixing plate, in order to stabilize the push plate, a groove is formed in the position, close to the upper fixing plate, of the push plate, the upper fixing plate comprises a second bolt, an adjustable punching needle base plate and an adjustable punching needle fixing plate, the second bolt is used for fixing the adjustable punching needle base plate and adjusting the punching needle to be fixed, and after the push plate is pulled out of the progressive die, the adjustable punching needle base plate is pushed into the groove to stabilize the push plate.

As an embodiment of the application, a quick-change punch pin type progressive die is shown in FIG. 2, and the whole processing process flow is divided into 19 stations from g1 to g 19. Wherein, 8 punching stations are provided, one or more idle stations are arranged between 19 punching stations, the main purpose is to improve the strength of the die parts, provide enough space positions for the design of the die parts of each station, and facilitate the replacement of the die wearing parts and the maintenance of the die. The progressive die for processing panel products comprises the following parts from front to back according to the feeding direction: the device comprises a guide hole punching station, a typing station, a process hole punching station, a chamfering station, a bending and flanging station and a material belt product separating station.

And the pilot hole punching station is arranged at the g1 station and is used for punching pilot holes on the material belt and providing high-precision positioning for each subsequent forming station. The punching stations are respectively at stations g1, g2 and g3 and are used for punching additional process cuts on the material strip. The material belt product separating station is arranged at the g19 station, the g19 station is of a continuous punching belt bending structure and is used for separating the material belt from the product, meanwhile, waste materials on the material belt are directly discharged downwards, and the product is directly pushed forwards and is sent out of the table top of the punch by the conveying belt. Two operating states of the quick change are described with reference to fig. 3 to 4. First operating state (fig. 3): before the die does not work, the push plate 311 is manually pushed into the die until the outer edge of the push plate 311 is flush with the outer edge of the upper back plate 302, then the push plate 311 is fixed by the bolt 312 so as not to slide, when the die starts to work, the upper die base 301 presses the upper back plate 302, the upper back plate 302 presses the push plate 311, the push plate 311 presses the adjustable punching needle backing plate 313, the adjustable punching needle backing plate 313 presses the punching needle 316, the punching needle 316 punches the material plate 317, the discharging plate 307 synchronously presses materials and synchronously retreats materials, and punching waste materials fall downwards. Second rest state (fig. 4): before the die does not work, the push plate 311 is manually pulled out of the die, the push plate 311 is fixed by the bolt 312 after being pulled out so as not to slide, when the die starts to work, the upper die holder 301 presses the upper back plate 302, the upper back plate 302 presses the push plate 311, the adjustable punching needle backing plate 313 retreats into the yielding position of the push plate 311, the adjustable punching needle backing plate 313 presses the punching needle 316, the punching needle 316 does not punch through the material plate 317, the material discharging plate 307 synchronously presses and retreats materials, and no punching waste exists. Two or more products are obtained on the same pair of dies by the stamping method, the problems of the sharing of one die by a plurality of products, the consistency of size and tolerance and the like are effectively solved, the number of dies is reduced, the phenomenon of frequent die change is reduced, the quality requirement of the products is ensured, the cost is reduced, and the market competitive advantage is obviously improved.

As another embodiment of the present application, as shown in fig. 5, in the working state, the push plate 311 is manually pushed into the mold until the outer edge of the push plate 311 is flush with the outer edge of the upper back plate 302, then the push plate 311 is fixed by the bolt 312 so as not to slide, when the mold starts to work, the upper mold base 301 presses the upper back plate 302, the upper back plate 302 presses the push plate 311, the push plate 311 presses the adjustable punch pin backing plate 313, the adjustable punch pin backing plate 313 presses the punch pin 316, the punch pin 316 punches through the material plate 317, the discharging plate 307 synchronously presses and retreats the material, the punching waste falls down, the material plate processed by the punch pin continues to be conveyed forward, the upper mold presses the material plate to form the mold like a cavity plate, if the push plate is not in working, the distance between the punch pin and the material plate is pulled out, the punching operation is not performed on the material plate, thus not only reducing the disassembly and assembly time compared with the punching operation performed by a single punch pin, and can inspect simultaneously and effectively solved the difficult problem of a plurality of products sharing a pair mould, difficult problems such as size and tolerance uniformity have reduced mould quantity, have reduced the phenomenon of frequent retooling, the quick retooling device of towards needle of this application mainly realizes quick replacement through the push pedal, the push pedal pushes the mould and pulls out the mould and changes the length of going up the mould towards the needle protrusion simultaneously, from can be with a series of product production in-process by the original product optimization of a mould one mould into a mould multiple product.

The present application is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the present application are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the application; the above concepts and technical solutions of the present application can be directly applied to other applications without modification, and are within the scope of the present application.

Claims (6)

1. A progressive die capable of rapidly replacing punching needles is characterized by comprising:

an upper die;

the lower die is arranged opposite to the upper die;

the discharging structure is arranged between the upper die and the lower die;

the quick punching needle replacing device is arranged between the discharging structure and the upper die and comprises a plurality of punching needles, and the length of the punching needles protruding out of the upper die can be adjusted by the quick punching needle replacing device.

2. The progressive die for rapidly replacing the punch pin as claimed in claim 1, wherein the upper die comprises an upper die base, an upper back plate, an upper backing plate and an upper fixing plate which are arranged in sequence from the upper die to the lower die; the punch pin quick replacement device comprises a push plate, and the push plate is arranged between the upper back plate and the upper fixing plate; the discharging structure comprises a material plate and a discharging plate;

before the progressive die does not work, pushing the push plate into the progressive die until the outer edge of the push plate is flush with the outer edge of the upper back plate; when the progressive die works, the punching needle punches through the material plate, the material discharging plate synchronously presses materials and returns materials, and punching waste materials drop downwards;

before the progressive die does not work, pulling the push plate out of the progressive die until the length of the punch pin protruding out of the upper die is changed; when the progressive die starts to work, the punching needle does not punch through the material plate, the material discharging plate synchronously presses materials and returns materials, and no punching waste exists.

3. The progressive die for rapidly replacing a punch pin as claimed in claim 2, wherein said punch pin rapid replacement means comprises a first bolt passing through said push plate for securing said push plate and said upper back plate.

4. The progressive die for rapidly replacing a punch pin as claimed in claim 2, wherein the push plate comprises a groove, the upper fixing plate comprises a second bolt, a punch pin backing plate and a punch pin fixing plate, the punch pin backing plate is arranged on the punch pin fixing plate, and the second bolt is used for fixing the punch pin backing plate and the punch pin fixing plate.

5. The progressive die capable of rapidly replacing punch pins as claimed in claim 2, wherein a limiting hanging plate is arranged between the material plate and the push plate, a third bolt is arranged on the limiting hanging plate, the third bolt penetrates through the limiting hanging plate to fixedly connect the limiting hanging plate with the upper fixing plate, and one end of the limiting hanging plate, close to the push plate, is flush with the upper fixing plate.

6. The progressive die with the fast-replaceable punch pins as claimed in claim 2, wherein the unloading structure comprises an unloading cover plate, the unloading cover plate is arranged between the upper fixing plate and the unloading plate, and the lower die comprises a cavity plate, a lower bolster and a lower die base which are sequentially arranged below the unloading plate;

and a nitrogen spring for pushing the discharging cover plate to move is fixedly arranged on the upper die base, and a punching insert is arranged in the concave die plate.

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