CN211679643U

CN211679643U - Internal guide structure of large-stroke die

Info

Publication number: CN211679643U
Application number: CN202020183439.3U
Authority: CN
Inventors: 詹益坑; 林坚平; 詹伟增
Original assignee: Dongguan Rending Mould Co ltd
Current assignee: Dongguan Rending Mould Co ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-10-16
Anticipated expiration: 2030-02-19

Abstract

The utility model discloses a structure is just led in of big stroke die, including last mould and lower mould, the lower mould includes die holder, backing plate, backstop board and takes off the flitch, takes off flitch and backstop board fixed connection and can remove along the compound die direction under the promotion of last mould, takes off flitch bottom fixedly connected with inner guide post, and inner guide post passes backstop board, backing plate and die holder in proper order to can slide in order to lead the slip direction of just taking off the flitch in backing plate and die holder. Compared with the prior art, the die-closing mechanism has the advantages that the inner guide pillar with the longer guide part is fixed on the stripper plate, so that the die-closing direction of the large-stroke die can be effectively guided, the problems that the position of a workpiece is influenced and the precision of stamping processing is reduced due to the fact that the inner guide pillar touches the workpiece are solved, and the yield of stamping processing is improved; through establishing the cross rib at the guide part, can strengthen the intensity of guide part, reduce or avoid interior guide pillar damage, prolong its life, promote the production efficiency of mould.

Description

Internal guide structure of large-stroke die

Technical Field

The utility model belongs to the technical field of the stamping die technique and specifically relates to an interior structure of leading of big stroke die.

Background

In the design of a stamping die, the pilot is crucial in the die and is divided into an outer pilot part and an inner pilot part, and an inner guide pillar is the most crucial component of the inner pilot part. In the traditional design, an inner guide pillar is generally cylindrical and fixed on a base plate, and in the process that a lower template is pressed down by an upper die to be matched with the die to move, the inner guide pillar guides the moving direction of the lower template, so that the position precision of a plate/workpiece fixed on the lower template is ensured. However, in application, some products with complex structures can be punched and molded only by a large punching stroke, the common inner guide pillar structure cannot be effectively guided due to insufficient length, if the length of the inner guide pillar is increased, the inner guide pillar can easily push against a plate/workpiece, so that the position of the plate/workpiece is shifted, the machining precision is affected, the longer inner guide pillar is easily damaged or even broken under the large upper die punching force, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem of mentioning in the above-mentioned background art, provide an interior structure of leading of big stroke die, through the cross sectional shape who changes interior guide pillar to change its installing position in the mould, make it can carry out fine direction to the stamping die of big stroke and lead just, it is longer to lead just part life in safe in utilization and.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

an inner guide structure of a large-stroke stamping die comprises an upper die and a lower die, and is characterized in that the lower die comprises a lower die base, a base plate, a stop plate and a stripper plate which are arranged from bottom to top, the lower die base is fixedly connected with the base plate, and the stop plate is fixedly connected with the stripper plate and can move along the die assembly direction under the pushing of the upper die; an inner guide post is arranged at the bottom end of the stripper plate, extends along the die assembly direction and sequentially penetrates through the stop plate, the base plate and the lower die base; the inner guide post and the stripper plate can move together along the die assembly direction and guide the moving direction of the stripper plate.

Furthermore, the stop plate is provided with a first pilot hole, the backing plate is provided with a second pilot hole, the lower die base is provided with a third pilot hole, and the first pilot hole, the second pilot hole and the third pilot hole are coaxial and are matched with the inner guide pillar.

Furthermore, the inner guide pillar is a T-shaped guide pillar and comprises a fixing portion and a guide portion, the fixing portion is fixedly connected with the stripper plate, the guide portion penetrates through the first guide hole and extends into the second guide hole and the third guide hole, and the guide portion can slide along the inner walls of the second guide hole and the third guide hole in the die assembly process.

Furthermore, be equipped with a plurality of cross sections on the guide part and be the reinforcing part of positive cross, the reinforcing part can be followed the inner wall in second pilot hole and third pilot hole slides.

Further, the length of the guide part is not less than the distance from the top end of the lower die base to the bottom end of the stripper plate in a die parting state.

Compared with the prior art, the beneficial effects of the utility model reside in that: the inner guide pillar with the longer guide part is fixedly arranged on the movable stripper plate, so that the direction of the large-stroke stamping die can be effectively guided, the problems that the workpiece position is influenced and the stamping precision is reduced due to the fact that the inner guide pillar touches the workpiece in the guiding process are solved, and the yield of stamping is improved; through establish the cross rib on the guide part of interior guide pillar, can strengthen the intensity of guide part, reduce or avoid interior guide pillar damage, prolong its life, promote the production efficiency of mould.

Drawings

FIG. 1 is a schematic plan view of the present embodiment;

FIG. 2 is an enlarged partial cross-sectional view of A of FIG. 1;

fig. 3 is a sectional view B-B of fig. 2.

In the figure: 1. an upper die; 2. a lower die; 3. a lower die holder; 301. a third pilot hole; 4. a base plate; 401. a second pilot hole; 5. a stopper plate; 501. a first pilot hole; 6. a material removing plate; 7. an inner guide post; 701. a fixed part; 702. a guide portion; 703. a reinforcing portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-3.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two 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. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-3, an inner guide structure of a large-stroke die comprises an upper die 1 and a lower die 2, wherein the lower die 2 comprises a lower die base 3, a backing plate 4, a stop plate 5 and a stripper plate 6 which are arranged from bottom to top, the lower die base 3 is fixedly connected with the backing plate 4, and the stop plate 5 is fixedly connected with the stripper plate 6 and can move along a die assembly direction under the pushing of the upper die; an inner guide post 7 is arranged at the bottom end of the stripper plate 6, and the inner guide post 7 extends along the die assembly direction and sequentially passes through the stop plate 5, the base plate 4 and the lower die holder 3; the inner guide post 7 can move together with the stripper plate 6 in the mold closing direction and guide the moving direction of the stripper plate 5. In the embodiment, a groove is arranged on the end surface of the stripper plate 6, and the inner guide post is completely embedded into the groove and fixed, so that the stripper plate 6 and the stop plate 5 are fixed.

Further, the stop plate 5 is provided with a first pilot hole 501, the backing plate 4 is provided with a second pilot hole 401, the lower die holder 3 is provided with a third pilot hole 301, and the first pilot hole 501, the second pilot hole 401 and the third pilot hole 301 are coaxial and matched with the inner guide post 7. In this embodiment, in order to facilitate the processing and refresh the production efficiency of the mold itself, the same hole diameter is used for the first pilot hole 501, the second pilot hole 401, and the third pilot hole 301.

Further, the inner guide post 7 is a T-shaped guide post and comprises a fixing portion 701 and a guide portion 702, the fixing portion 701 is fixedly connected with the stripper plate 6, the guide portion 702 penetrates through the first guide hole 501 and extends into the second guide hole 401 and the third guide hole 301, and the guide portion 702 can slide along the inner walls of the second guide hole 401 and the third guide hole 301 in the mold closing process.

Furthermore, a plurality of reinforcing parts 703 with a cross-shaped cross section are arranged on the guide part 702, and the reinforcing parts 703 can slide along the inner walls of the second guide hole 401 and the third guide hole 301. In this embodiment, the reinforcing portion 703 and the guide portion 702 are integrally formed

Further, the length of the guide part 702 is not less than the distance from the top end of the lower die holder 3 to the bottom end of the stripper plate 6 in the die parting state. In order to perform the direction correction during the mold closing process, in the present embodiment, the guide portion 702 completely covers the stroke of the post lower mold, and the length thereof is greater than or equal to the distance from the top end of the lower mold base 3 to the bottom end of the stripper plate 6 in the mold split state.

The utility model discloses when using, at first fix the bottom of taking off flitch 6 at the activity with interior guide pillar 7, make the guide part 702 of interior guide pillar 7 lead in the second of backing plate 4 just hole 401 and the third of die holder 3 leads just downthehole 301 and slides, thereby reverse inside guide pillar 7 reaches and takes off flitch 6 that links firmly rather than carrying out the guiding orientation, and then carry out the guiding orientation to fixing the work piece on taking off flitch 6, guarantee the work piece at compound die in-process hold position precision, and then ensure punching press processing's precision and punching press yields.

The above is not intended to limit the technical scope of the present invention, and all changes and modifications equivalent to any modification made to the above embodiments according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An inner guide structure of a large-stroke stamping die comprises an upper die and a lower die, and is characterized in that the lower die comprises a lower die base, a base plate, a stop plate and a stripper plate which are arranged from bottom to top, the lower die base is fixedly connected with the base plate, and the stop plate is fixedly connected with the stripper plate and can move along the die assembly direction under the pushing of the upper die; an inner guide post is arranged at the bottom end of the stripper plate, extends along the die assembly direction and sequentially penetrates through the stop plate, the base plate and the lower die base; the inner guide post and the stripper plate can move together along the die assembly direction and guide the moving direction of the stripper plate.

2. The internal guide structure of the large-stroke die as claimed in claim 1, wherein the stop plate is provided with a first guide hole, the backing plate is provided with a second guide hole, the lower die base is provided with a third guide hole, and the first guide hole, the second guide hole and the third guide hole are coaxial and matched with the internal guide post.

3. The internal guide structure of the large-stroke die as claimed in claim 2, wherein the internal guide post is a T-shaped guide post and comprises a fixing portion and a guiding portion, the fixing portion is fixedly connected with the stripper plate, the guiding portion passes through the first guide hole and extends into the second guide hole and the third guide hole, and the guiding portion can slide along the inner walls of the second guide hole and the third guide hole during die assembly.

4. The internal guide structure of the large-stroke die as claimed in claim 3, wherein the guide part is provided with a plurality of reinforcing parts with cross sections in a shape of a right cross, and the reinforcing parts can slide along the inner walls of the second guide hole and the third guide hole.

5. The internal guide structure of the large-stroke die as claimed in claim 4, wherein the length of the guide part is not less than the distance from the top end of the lower die holder to the bottom end of the stripper plate in the die parting state.