CN214639663U - Aluminium alloy stamping die that tolerance is high - Google Patents

Abstract

The utility model relates to an aluminum profile stamping die with high tolerance, which comprises an upper die and a lower die; the upper die and the lower die are connected through at least two vertical guide rods, the upper die can move up and down along the length direction of the vertical guide rods through the vertical guide rods, the upper die is provided with a vertical punching needle, a material returning block in sliding fit with the vertical punching needle and a slideway for the material returning block to slide up and down, and the material returning block moves up and down in the slideway under the driving of a material pushing rod, so that the material returning operation after the punching is finished is realized; be equipped with a plurality of reference columns on the lower mould, and every reference column top all is equipped with an elasticity piece that resets, through the reference column is fixed a position the work piece, and this scheme has positioning accuracy height, and then makes the tolerance of vertical towards needle and upper and lower mould improve greatly, and long service life can conveniently carry out the material returned operation.

Description

Aluminium alloy stamping die that tolerance is high

Technical Field

The utility model relates to a stamping die, concretely relates to aluminium alloy stamping die that tolerance is high.

Background

In recent years, the stable, continuous and rapid development of national economy and high and new technology promotes the rapid development of aluminum smelting and aluminum profile processing industries in China.

The aluminum profile is an aluminum bar which is hot-melted and extruded to obtain aluminum materials with different cross-sectional shapes. In the field of aluminum profile processing, a stamping die is widely applied and generally comprises a punch-die combination matched with a punch-die combination up and down, each punch-die is provided with a specific die holder, but the existing stamping die generally has the defects of short service life, low tolerance and incapability of performing material returning operation well.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an aluminium alloy stamping die that tolerance is high to the above-mentioned problem that exists among the prior art.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: an aluminum profile stamping die with high tolerance comprises an upper die and a lower die; the upper die and the lower die are connected through at least two vertical guide rods, the upper die can move up and down along the length direction of the vertical guide rods through the vertical guide rods, the upper die is provided with a vertical punching needle, a material returning block in sliding fit with the vertical punching needle and a slideway for the material returning block to slide up and down, and the material returning block moves up and down in the slideway under the driving of a material pushing rod, so that the material returning operation after the punching is finished is realized; the lower die is provided with a plurality of positioning columns, the top of each positioning column is provided with an elastic reset piece, and the positioning columns are used for positioning the workpiece.

The working principle and the beneficial effects are as follows: 1. compared with the prior art, the scheme has the advantages that the positioning is carried out through at least two vertical guide rods, the upper die is driven by the existing high-precision press, punching operation and positioning column matching are carried out on a workpiece through vertical punching, the positioning precision can be obviously improved, and the positioning precision of the die and the precision of the press have great influence on the service life of the die, so that the service life of the die can be obviously prolonged by improving the positioning precision, and the tolerance of the die is high;

2. compared with the mode of manual operation or an external material returning structure in the prior art, the scheme has the advantages of convenient operation, high material returning efficiency, high space utilization rate, no need of an external material returning structure, simple structure and low use cost, and only needs to connect the material pushing rod with a digital driving part;

3. when the positioning column closes the membrane at last lower mould, can be pushed up in the lower mould to lead to the fact the interference to last mould, and in last lower mould separately, because the effect of elasticity piece that resets, but automatic re-setting, the structure is ingenious, sets up rationally.

Furthermore, a lower die male die corresponding to the material returning block is arranged on the lower die, and the cross section of the lower die male die is consistent with that of the material returning block and provided with punching holes corresponding to the vertical punching needles one to one. This setting can make things convenient for placing of work piece, also makes things convenient for the punching operation of vertical towards needle for vertical towards the needle can not direct striking on the lower die terrace die when passing the work piece, is showing the life who improves vertical towards the needle, and cooperates vertical guide arm, can realize the accurate towards the needle of vertical towards the needle, can not have the circumstances of assaulting at the edge of punching a hole and take place.

Furthermore, a limiting block is fixed to the top of the material returning block through a connecting piece, the slide is divided into a first layer and a second layer, the limiting block is located in the first layer and slides up and down, the material returning block is located in the second layer and slides up and down, the cross sectional area of the first layer is larger than that of the second layer, and the cross sectional area of the limiting block is larger than that of the second layer. According to the scheme, the material returning block can be conveniently limited in stroke through the limiting block, the structure is compact, the space utilization rate is high, and the vertical punching needle work is not influenced.

Furthermore, punch a hole the garbage collection groove of intercommunication lower mould bottom, the garbage collection groove is used for collecting the work piece residue after punching a hole. According to the scheme, after the workpiece is punched by the vertical punching needle, workpiece residues are pushed into the punching hole penetrating through the lower die male die by the vertical punching needle, and directly fall into the waste recovery tank, the workpiece residues do not need to be manually cleared, the pushing operation of the workpiece residues can be completed once by each punching, the workpiece residues can be prevented from being blocked in the punching hole under the action of gravity, the structure is simple and efficient, the operation is convenient, and the service life is long.

Furthermore, a refrigerating module is arranged in the material returning block, and the vertical punching needle is cooled through the refrigerating module. This setting can adopt common semiconductor refrigeration structure or air-cooled structure or water-cooled structure, and the parcel is outside vertical towards the needle, carries out cooling operation to it, makes its temperature difference with the work piece diminish, can show the problem that reduces because of the vertical towards the needle life-span that the difference in temperature leads to takes place, has also prevented that vertical towards the needle from leading to the condition emergence that the life-span reduced under high temperature for a long time to the tolerance of mould has been improved.

Further, go up the mould and include from the upper die base that sets gradually down, go up the mould backing plate, go up the mould towards the needle fixed plate, the material returned places board and die, the upper die base runs through the mould backing plate through the connecting piece, goes up the mould towards the needle fixed plate and the material returned is placed the board and is fixed with the die connection, just upper die base and vertical guide arm sliding connection, the first layer is located the material returned and places board center department, the second level is located the material returned and places board center department, the ejector beam runs through the upper die base in proper order, goes up the mould backing plate and goes up the mould towards the needle fixed plate and stretch into in the first layer. This scheme through will go up the mould and decompose into a plurality of parts, consequently the accessible is changed not the material returned of co-altitude and is placed the board and the material returned is placed the board and is realized the stroke change to the material returned piece, also consequently can realize changing the stroke that punches a hole of vertical punching needle, realizes the work piece processing to different thickness, and overall structure installs through the stack mode, simple structure, easy dismounting, and processing is convenient, and the precision is controlled easily.

Further, the lower die comprises a bottom base plate, a lower die seat, a bottom base plate, a lower die base plate and a lower die stripper plate from bottom to top, the top of the lower die male die is flush with the top of the lower die stripper plate, and the bottom of the lower die male die is flush with the bottom of the lower die base plate. According to the scheme, the lower die is also decomposed into a plurality of parts, the structure is simple, the dismounting and the mounting are convenient, the processing is simple, the precision is easy to control, and one part can be conveniently replaced to change the height of the lower die.

Further, be equipped with the elastic support post between lower mould backing plate and the lower mould stripper plate, the elastic support post bottom is passed lower mould backing plate and lower mould backing plate bottom surface parallel and level, the bottom surface of top butt lower mould stripper plate, just elastic support post center department spiro union has set screw, set screw penetrates the elastic support post through the counter bore on the lower mould stripper plate. This scheme can reduce the impact force that the striking produced through elastomeric support post when going up mould and lower mould and close the membrane for the life-span of lower mould material returned board and die increases, and this structure does not cause the skew of lower mould material returned board, simple structure, easy dismounting.

Furthermore, the elastic support columns are respectively located at four corners of the lower die stripper plate and are all located on the diagonal line of the lower die stripper plate. This setting can show the stability that promotes lower mould stripper plate.

Furthermore, the upper die is provided with positioning pins penetrating through the upper die base, the upper die base plate, the upper die punching needle fixing plate, the material returning placing plate and the female die, and the number of the positioning pins is at least two. This setting, when the mould was gone up in the installation, can establish ties several parts earlier through the shop bolt and fix a position to make things convenient for the locking of connecting piece, when improving the installation convenience degree, also further improved positioning accuracy, make the holistic installation accuracy of last mould improve, also helped the holistic life improvement of mould.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a rear view of the present invention;

fig. 3 is an isometric cross-sectional view of the present invention;

fig. 4 is a schematic view of the internal structure of the present invention;

fig. 5 is a schematic view of the material returning placement plate, the lower die base plate and the bottom plate base plate of the present invention.

In the figure, 1, a vertical guide rod; 2. vertically punching a needle; 3. a material returning block; 4. a material pushing rod; 5. a limiting block; 6. a first layer; 7. a second layer; 8. an upper die holder; 9. an upper die base plate; 10. an upper die punching needle fixing plate; 11. a material returning and placing plate; 12. a female die; 13. positioning a pin; 14. a positioning column; 15. an elastic reset member; 16. a lower die male die; 17. punching; 18. a waste recovery tank; 19. an elastomeric support column; 20. a set screw; 21. a refrigeration module; 22. a bottom bolster plate; 23. a lower die holder; 24. a base plate backing plate; 25. a lower die base plate; 26. and (5) a material returning plate of the lower die.

Detailed Description

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 all belong to the protection scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting.

As shown in fig. 1-5, the aluminum profile stamping die with high tolerance comprises an upper die and a lower die, and the upper die and the lower die are laminated to process a workpiece.

Specifically, go up and be connected through two vertical guide arms 1 between mould and the lower mould, go up the mould and can follow 1 length direction up-and-down motion of vertical guide arm through vertical guide arm 1, just go up the mould and be equipped with vertical towards needle 2 and with vertical towards needle 2 sliding fit's material returned piece 3 and supply material returned piece 3 gliding slide from top to bottom, material returned piece 3 is at material pushing rod 4's drive down in the slide up-and-down motion, realizes the material returned operation after the punching press is accomplished, and material returned piece 3 top is fixed with a stopper 5 through the connecting piece, the slide divide into first layer 6 and second floor 7, and stopper 5 is located first layer 6 and slides from top to bottom, material returned piece 3 is located second floor 7 and slides from top to bottom, and first layer 6 cross sectional area is greater than the cross sectional area of second floor 7, and the cross sectional area of stopper 5 is greater than the cross sectional area of second floor 7.

Specifically, go up the mould and include from upper die base 8, last mould backing plate 9, the last mould towards needle fixed plate 10, the material returned that sets gradually down and place board 11 and die 12, upper die base 8 runs through last mould backing plate 9, last mould towards needle fixed plate 10 and the material returned through common screw and places board 11 and die 12 and be connected fixedly, just upper die base 8 and 1 sliding connection of vertical guide arm, first layer 6 is located the material returned and places board 11 center department, second floor 7 is located the material returned and places board 11 center department, ejector ram 4 runs through upper die base 8, last mould backing plate 9 and last mould towards needle fixed plate 10 in proper order and stretches into in first layer 6. Through decomposing the mould into a plurality of parts, consequently the accessible is changed not the material returned and is placed board 11 and the material returned and place board 11 and realize the stroke change to material returned piece 3, also consequently can realize changing the 17 strokes of punching a hole of vertical punching needle 2, realizes the work piece processing to different thickness, and overall structure installs through the stack mode, simple structure, easy dismounting, and processing is convenient, and the precision is controlled easily.

The upper die base 8 is driven by a common high-precision press, and in order to improve the durability of the stamping die, the press with higher precision and rigidity is selected, and the stamping tonnage of the press is more than thirty percent of the stamping force. Normally, the service life of the die can be correspondingly prolonged by more than dozens of times by using the servo punch.

And the material returning block 3 is driven by a common electric push rod, an electric cylinder, an air cylinder and the like.

In this embodiment, the upper die is provided with at least two positioning pins 13 penetrating through the upper die base 8, the upper die base plate 9, the upper die punch pin fixing plate 10, the material returning placing plate 11 and the female die 12. When the mould is installed, a plurality of parts can be connected in series firstly through the positioning pin 13 to be positioned, so that the connecting piece is convenient to lock, the installation convenience degree is improved, the positioning precision is further improved, the integral installation precision of the upper mould is improved, and the integral service life of the mould is prolonged.

Specifically, be equipped with a plurality of reference columns 14 on the lower mould, and every reference column 14 top all is equipped with an elasticity piece 15 that resets, through reference column 14 fixes a position the work piece, and reference column 14 can be pushed into in the lower mould when closing the membrane at last lower mould, can not cause the interference to last mould, and in last lower mould detached, because the effect that elasticity resets 15, but automatic re-setting, wherein elasticity resets 15 and is common spring, and the quantity of reference column 14 is four, specifically sets up the figure in detail, and the lower mould from the bottom up includes bottom pad plate 22, die holder 23, bottom plate backing plate 24, lower die backing plate 25 and lower mould material returned board 26, lower mould terrace die 16 top and lower mould material returned board 26 top parallel and level, bottom and lower die backing plate 25 bottom parallel and level. The lower die is also decomposed into a plurality of parts, the structure is simple, the disassembly and the assembly are convenient, the processing is simple, the precision is easy to control, and one part can be conveniently replaced to change the height of the lower die.

Specifically, the lower die is provided with a lower die male die 16 corresponding to the material returning block 3, and the cross section of the lower die male die 16 is consistent with that of the material returning block 3 and is provided with punching holes 17 corresponding to the vertical punching needles 2 one by one. This setting can make things convenient for placing of work piece, also makes things convenient for the 17 operations that punch a hole of vertical towards needle 2 for vertical towards needle 2 can not directly strike on lower mould terrace die 16 when passing the work piece, is showing the life who improves vertical towards needle 2, and cooperates vertical guide arm 1, can realize the accurate towards needle of vertical towards needle 2, can not have the impact and take place in the condition at the 17 edges that punch a hole, punch a hole 17 and communicate waste recycling groove 18 of lower mould bottom, waste recycling groove 18 is used for collecting the work piece residue after punching a hole 17. This scheme, after vertical punching needle 2 punches a hole 17 to the work piece, the work piece residue is pushed into the 17 that punches a hole that passes lower mould terrace die 16 by vertical punching needle 2 top to directly drop in waste recovery groove 18, need not the manual work and clear away, and punch a hole 17 every time and can both accomplish once the push operation to the work piece residue, cooperation gravity effect can avoid the work piece residue to block up in 17 that punches a hole, simple structure is high-efficient, convenient operation, long service life.

In this embodiment, be equipped with elastic support column 19 between lower mould backing plate 25 and the lower mould stripper plate 26, elastic support column 19 bottom is passed lower mould backing plate 25 and lower mould backing plate 25 bottom surface parallel and level, the bottom surface of top butt lower mould stripper plate 26, just elastic support column 19 center department spiro union has set screw 20, set screw 20 penetrates elastic support column 19 through the counter bore on the lower mould stripper plate 26. This scheme can reduce the impact force that the striking produced through elastomeric support post 19 when going up mould and lower mould and close the membrane for the life-span of lower mould material returned board 26 and die 12 increases, and this structure does not cause crooked of lower mould material returned board 26, simple structure, easy dismounting, and wherein elastomeric support post 19 makes through elastic material such as common silica gel, rubber.

Preferably, the elastic support columns 19 are respectively located at four corners of the lower stripper plate 26, and are all located on a diagonal line of the lower stripper plate 26. With the arrangement, the stability of the stripper plate 26 of the lower die can be obviously improved.

Preferably, as an additional technical solution, a refrigeration module 21 is arranged in the material returning block 3, and the vertical punching pin 2 is cooled by the refrigeration module 21. Common semiconductor refrigeration structure or air-cooled structure or water-cooled structure can be adopted, the package is outside vertical towards needle 2, carries out cooling operation to it, makes its temperature difference with the work piece diminish, can show the problem that reduces because of the vertical towards needle 2 life-span that the difference in temperature leads to takes place, has also prevented that vertical towards needle 2 from leading to the condition emergence of life-span reduction under high temperature for a long time to the tolerance of mould has been improved. Wherein the refrigeration module 21 can be installed inside the upper punch pin fixing plate 10.

The part of the utility model which is not described in detail is the prior art, so the utility model does not detail the part.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Although the terms vertical guide rod 1, vertical punch pin 2, material returning block 3, material pushing rod 4, limiting block 5, first layer 6, second layer 7, upper die holder 8, upper die cushion plate 9, upper die punch pin fixing plate 10, material returning placing plate 11, female die 12, positioning pin 13, positioning column 14, elastic resetting piece 15, lower die male die 16, punching hole 17, waste recovery groove 18, elastic supporting column 19, fixing screw 20, refrigeration module 21, bottom cushion plate 22, lower die holder 23, bottom plate cushion plate 24, lower die cushion plate 25, lower die material returning plate 26 and the like are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims (10)

1. The aluminum profile stamping die with high tolerance is characterized by comprising an upper die and a lower die; the upper die and the lower die are connected through at least two vertical guide rods, the upper die can move up and down along the length direction of the vertical guide rods through the vertical guide rods, the upper die is provided with a vertical punching needle, a material returning block in sliding fit with the vertical punching needle and a slideway for the material returning block to slide up and down, and the material returning block moves up and down in the slideway under the driving of a material pushing rod, so that the material returning operation after the punching is finished is realized; the lower die is provided with a plurality of positioning columns, the top of each positioning column is provided with an elastic reset piece, and the positioning columns are used for positioning the workpiece.

2. The high-tolerance aluminum profile stamping die as claimed in claim 1, wherein a lower die male die corresponding to the material returning block is arranged on the lower die, and the cross section of the lower die male die is consistent with that of the material returning block and is provided with punching holes corresponding to the vertical punching pins one by one.

3. The aluminum profile stamping die with high tolerance as claimed in claim 2, wherein a limiting block is fixed at the top of the material returning block through a connecting piece, the slideway is divided into a first layer and a second layer, the limiting block is positioned in the first layer to slide up and down, the material returning block is positioned in the second layer to slide up and down, the cross-sectional area of the first layer is larger than that of the second layer, and the cross-sectional area of the limiting block is larger than that of the second layer.

4. The high-tolerance aluminum profile stamping die as claimed in claim 3, wherein the punched hole is communicated with a scrap recovery groove at the bottom of the lower die, and the scrap recovery groove is used for collecting workpiece residues after punching.

5. The high-tolerance aluminum profile stamping die as claimed in claim 1, wherein a refrigeration module is arranged in the material returning block, and the refrigeration module is used for cooling the vertical stamping pin.

6. The aluminum profile stamping die with high tolerance according to claim 3, wherein the upper die comprises an upper die base, an upper die base plate, an upper die punch needle fixing plate, a material returning placing plate and a female die which are sequentially arranged from top to bottom, the upper die base penetrates through the upper die base plate, the upper die punch needle fixing plate and the material returning placing plate through connecting pieces to be connected and fixed with the female die, the upper die base is connected with a vertical guide rod in a sliding mode, the first layer is located at the center of the material returning placing plate, the second layer is located at the center of the material returning placing plate, and the material pushing rod penetrates through the upper die base, the upper die base plate and the upper die punch needle fixing plate sequentially to extend into the first layer.

7. The high-tolerance aluminum profile stamping die according to claim 2, wherein the lower die comprises a bottom base plate, a lower die holder, a bottom base plate, a lower die base plate and a lower die stripper plate from bottom to top, the top of the lower die male die is flush with the top of the lower die stripper plate, and the bottom of the lower die male die is flush with the bottom of the lower die base plate.

8. The aluminum profile stamping die with high tolerance as claimed in claim 7, wherein elastic support columns are arranged between the lower die base plate and the lower die stripper plate, the bottoms of the elastic support columns penetrate through the lower die base plate to be flush with the bottom surface of the lower die base plate, the tops of the elastic support columns abut against the bottom surface of the lower die stripper plate, fixing screws are screwed at the centers of the elastic support columns, and the fixing screws penetrate into the elastic support columns through counter bores in the lower die stripper plate.

9. The high-tolerance aluminum profile stamping die as claimed in claim 8, wherein the elastic support columns are respectively located at four corners of the lower die stripper plate and are located on the diagonal line of the lower die stripper plate.

10. The aluminum profile stamping die with high tolerance according to claim 7, wherein the upper die is provided with at least two positioning pins which penetrate through the upper die base, the upper die base plate, the upper die stamping pin fixing plate, the material returning placing plate and the female die.

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