CN211135146U

CN211135146U - Stamping equipment

Info

Publication number: CN211135146U
Application number: CN201921958503.4U
Authority: CN
Inventors: 王洪军; 王鹏
Original assignee: Jintech Tianjin Precision & Electronic Co ltd
Current assignee: Jintech Tianjin Precision & Electronic Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-07-31
Anticipated expiration: 2029-11-13

Abstract

The utility model provides a stamping equipment, realize treating the die-cut forming process of processing raw materials spare through setting up the punch device in last mould portion, setting up the die cavity that is used for bearing and treats processing raw materials spare in lower mould portion and realizing the location and the fixing of treating processing raw materials spare, and set up the air-blast device in lower mould portion, wherein the air outlet of air-blast device is close to the upper surface of die cavity, utilize the air-blast device to cool off die cavity and punch device, in order to reduce the annealing phenomenon of punch device, avoid the hardness decline of punch device, thereby the life of punch device has been prolonged, the quantity of blanking powder falling has also been reduced simultaneously, and also can blow it away through the air-blast device when producing blanking powder falling, avoid the blanking powder falling to cause the crushing wound to the product, thereby the yields of product has been improved and the punch device has further been protected.

Description

Stamping equipment

Technical Field

The utility model relates to a machining technology field, concretely relates to stamping equipment.

Background

The power battery is the development direction of new energy vehicles and energy storage power stations, and the copper and aluminum flexible connection fittings special for the new energy vehicle battery are taken as the domestic most safe and reliable battery conductive fitting products, can meet high-strength operations of new energy vehicles, passenger cars, electric vehicles, airplanes and the like, and has the characteristics of strong power, low energy consumption, high efficiency, low fault, long service life and the like, so that the new energy vehicles run more safely.

However, for thick and bent copper and aluminum soft and hard connecting fittings, the material generates temperature during stamping, annealing phenomenon is generated on a punch and a knife edge, the hardness of the punch and the knife edge is reduced, the punch and the knife edge are easy to damage, blanking powder falling is increased, products are crushed, and the punch and the knife edge are further damaged.

SUMMERY OF THE UTILITY MODEL

In view of the above, the embodiments of the present invention are directed to provide a punching apparatus, which realizes the punching and forming process of the material piece to be processed by providing the punch device at the upper mold part, the lower die part is provided with a cavity for bearing the raw material piece to be processed to realize the positioning and the fixation of the raw material piece to be processed, and the lower die part is provided with a blast device, wherein the air outlet of the air blowing device is close to the upper surface of the cavity, the cavity and the punch device are cooled by the air blowing device so as to reduce the annealing phenomenon of the punch device and avoid the hardness reduction of the punch device, thereby prolonged the life of drift device, also reduced the quantity of blanking powder simultaneously to also can blow away it through the air-blast device when producing the blanking powder, avoid the blanking powder to cause the crushing to the product, thereby improved the yields of product and further protected the drift device.

An embodiment of the utility model provides a pair of stamping equipment, include: the upper die part comprises a punch device for punching and forming the raw material piece to be processed; the lower die part comprises a die cavity for bearing the raw material piece to be processed; the air blowing device is arranged on the lower die part; and an air outlet of the air blowing device is close to the upper surface of the cavity.

In an embodiment, the air blowing device includes a plurality of air outlets arranged in an array.

In an embodiment, the plurality of air outlets include a plurality of air outlet directions, wherein at least one air outlet direction faces a position where the punch device contacts the raw material piece to be processed.

In an embodiment, at least one air outlet direction of the air outlet directions faces the punch device in the open state.

In one embodiment, the air blowing device is started when the distance between the punch device and the lower die part is smaller than a preset value.

In an embodiment, a powder falling receiving cavity is arranged on one side of the lower die part, which is far away from the air blowing device, and is used for receiving powder falling generated in the stamping process of the stamping equipment.

In one embodiment, the stamping device further comprises a limiting mechanism for limiting the die closing height.

In one embodiment, the limiting mechanism comprises: the upper limiting column is arranged on the upper die part, and the lower limiting column is arranged on the lower die part and corresponds to the upper limiting column; when the upper die part and the lower die part are closed, the at least one upper limiting column and the at least one lower limiting column are in contact with each other.

In one embodiment, the punching equipment further comprises a punching machine tool, and the punching machine tool is used for driving the lifting motion of the punch device to realize the opening and closing of the punching equipment.

In one embodiment, the press machine includes multiple strokes.

The embodiment of the utility model provides a pair of stamping equipment, through set up the die-cut forming process that the drift device realized treating processing raw materials spare in last mould portion, the setting is used for bearing the die cavity of treating processing raw materials spare and realizes the location and the fixing of treating processing raw materials spare in lower mould portion, and set up the air-blast device in lower mould portion, wherein the air outlet of air-blast device is close to the upper surface of die cavity, utilize the air-blast device to cool off die cavity and drift device, in order to reduce the annealing phenomenon of drift device, avoid the hardness decline of drift device, thereby the life of drift device has been prolonged, the quantity of blanking power breakage has also been reduced simultaneously, and also can blow away it through the air-blast device when producing the blanking power, avoid the blanking power to cause the crushing to the product, thereby the yields of product has been improved and the drift device has further been protected.

Drawings

Fig. 1 is a schematic structural diagram of a vertical cross section of a stamping device along a stamping stroke direction according to an embodiment of the present application.

Fig. 2 is a schematic top view of a lower die portion of a stamping apparatus according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a vertical cross section of a stamping device along a stamping stroke direction according to another embodiment of the present application.

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 without creative work belong to the protection scope of the present invention.

Further, in the exemplary embodiments, since the same reference numerals denote the same components having the same structure or the same steps of the same method, if an embodiment is exemplarily described, only a structure or a method different from the already described embodiment is described in other exemplary embodiments.

Throughout the specification and claims, when one element is described as being "connected" to another element, the one element may be "directly connected" to the other element or "electrically connected" to the other element through a third element. Furthermore, unless explicitly described to the contrary, the term "comprising" and its corresponding terms should only be taken as including the stated features, but should not be taken as excluding any other features.

Fig. 1 is a schematic structural diagram of a vertical cross section of a stamping device along a stamping stroke direction according to an embodiment of the present application. As shown in fig. 1, the punching apparatus includes: the upper die part 1 comprises a punch device 11 for punching and forming a raw material piece to be processed; the lower die part 2 comprises a die cavity 21 for bearing a raw material piece to be processed; and a blower device 3, the blower device 3 is arranged on the lower die part 2; wherein, the air outlet of the air blowing device 3 is close to the upper surface of the cavity 21. The punching equipment is characterized in that a material piece to be processed is fixedly placed in a cavity 21 of a lower die part 2 of the punching equipment, then the material piece to be processed is driven to approach and contact the material piece to be processed in the cavity 21 by utilizing the downward movement of an upper die part 1, and the punch device 11 continues to move downward to realize the blanking process of the material piece to be processed, so that the punching of processing a specific shape (corresponding to the structure of the punch device 11) on the material piece to be processed is completed. The punched hole processed by the punching equipment may be a punched hole without a chamfer (the upper and lower diameters of the punched hole are the same, such as a cylindrical punched hole), or a punched hole with a chamfer (the upper and lower diameters of the punched hole are different), and the embodiment of the application is not limited to the specific structure of the punched hole.

For simple processing to obtain a punched hole with a chamfer, in an embodiment, the punch device 11 is arranged up and down along the advancing direction of the punch device 11, and the punch device 11 may include a chamfer forming part, a punching part and a pre-forming part which are sequentially arranged, wherein in the punching process, the pre-forming part is the first part contacting with the material piece to be processed, the pre-forming part firstly punctures the material piece to be processed and penetrates the material piece to be processed to form a pre-forming hole with the size smaller than that of the punched hole, so that the punching process of the punching part is facilitated, and the formed punched hole has higher precision; after the pre-forming part penetrates into the raw material piece to be processed, the punching part is a second part which is in contact with the raw material piece to be processed, the punching part performs machining punching on the raw material piece to be processed on the basis of the pre-forming hole, penetrates through the raw material piece to be processed, and covers the whole pre-forming hole to form a punched hole which is larger than the pre-forming hole and has no chamfer; after the punching part penetrates into the raw material to be processed, the chamfer forming part is a third part which is contacted with the raw material to be processed, and it needs to be noted that the chamfer forming part is a circular truncated cone-shaped part, the chamfer forming part does not penetrate through the raw material to be processed, and only chamfers the raw material to be processed on the basis of the punched hole without the chamfer, so that the surface with larger area of the chamfer forming part is flush with the raw material to be processed, the surface with smaller area is contacted with the punched hole without the chamfer, the chamfer forming part covers part of the punched hole without the chamfer to form a top hole with the chamfer, and the top hole with the chamfer and the bottom hole without the chamfer are combined together to form the punched hole with the required chamfer size.

The utility model relates to a stamping equipment that embodiment provided, realize treating the die-cut forming process of processing raw materials spare through setting up the punch device in last mould portion, setting up the die cavity that is used for bearing and treats processing raw materials spare in lower mould portion and realizing the location and fixing of treating processing raw materials spare, and set up the air-blast device in lower mould portion, wherein the air outlet of air-blast device is close to the upper surface of die cavity, utilize the air-blast device to cool off die cavity and punch device, in order to reduce the annealing phenomenon of punch device, avoid the hardness decline of punch device, thereby the life of punch device has been prolonged, the quantity of blanking power breakage has also been reduced simultaneously, and also can blow it away through the air-blast device when producing blanking power breakage, avoid blanking power breakage to cause the crushing to the product, thereby the yields of product has been improved and the punch device has further been protected.

In one embodiment, as shown in fig. 1, the upper mold part 1 may further include: the punching device comprises a punching rod 12 and a punching rod seat 13, wherein a punching head device 11 and the punching rod seat 13 are respectively connected to two ends of the punching rod 12; the preform member 111, the blanking member 112, the chamfer forming member 113, the punch 12, and the punch holder 13 are integrally ground and formed.

Fig. 2 is a schematic top view of a lower die portion of a stamping apparatus according to an embodiment of the present disclosure. As shown in fig. 2, the blowing device 3 may include a plurality of air outlets 31 arranged in an array. Set up a plurality of air outlets 31 through the array, can enlarge blowing device 3 blow and the scope to improve blowing device 3's cooling range, further strengthen refrigerated effect, and can guarantee that the produced powder that falls is blown off drift device 11 and die cavity 21 by blowing device 3 as far as possible at blanking in-process, thereby avoid the damage of powder that falls to drift device 11 and treat processing raw materials spare. It should be understood that the specific number and the specific arrangement position of the air outlets 31 may be selected according to the requirements of practical application scenarios in the embodiments of the present application, as long as the selected number and position can ensure cooling of the punch device 11 and the cavity 21 and can blow the blanking dust away from the punch device 11 and the cavity 21, and the specific number and the specific arrangement position of the air outlets 31 are not limited in the embodiments of the present application.

In an embodiment, the air outlets 31 may include a plurality of air outlet directions, wherein at least one air outlet direction faces a position where the punch device 11 contacts the material to be processed. Through setting up a plurality of air-out directions, can further enlarge blowing device 3 blow and the scope, also can further guarantee that the powder that falls of each position can both be blown away. In an embodiment, each air outlet 31 may be provided with a plurality of air outlets with different directions. It should be understood that the air outlet direction may be selected according to the requirements of the actual application scenario, for example, all air outlet directions may be set to face the cavity 21, all air outlet directions may also be set to be arranged on the surface of the cavity 21 in parallel, and the air outlet directions may also be set to be multiple directions in a three-dimensional space, as long as the selected air outlet direction can ensure cooling of the punch device 11 and the cavity 21 and can blow the blanking dust away from the punch device 11 and the cavity 21, and the specific air outlet direction is not limited in the embodiment of the present application.

In an embodiment, at least one of the air outlet directions may face the punch device 11 in the mold opening state. Because the heat that punch means 11 produced at the stamping process is difficult to dispel in the short time, consequently, can set up at least one air-out direction and just to punch means 11 for when the die sinking, stop the punching press or the punching press clearance can utilize the air outlet 31 of this air-out direction to carry out the forced air cooling heat dissipation to punch means 11 promptly, also can further blow away the blanking that remains on punch means 11 and fall the powder simultaneously to, further improve punch means 11's life. It should be understood that, in the embodiment of the present application, an air outlet 31 may also be directly disposed on the upper die portion 1 at a position close to the punch device 11, and the air outlet 31 is used to continuously perform air cooling heat dissipation on the punch device 11 and clean the blanking dust on the surface thereof.

In an embodiment, the blowing device 3 may be set to be turned on when the distance between the punch device 11 and the lower die part 2 is smaller than a preset value. When stamping equipment is carrying out stamping process, when punch device 11 is close to lower mould portion 2, the air-blast device 3 that sets up on lower mould portion 2 could play refrigerated effect to punch device 11, or the cooling effect at this moment just better to only punch device 11 contacts and just can produce the blanking after waiting to process the raw materials spare and fall the powder, consequently, can expect to set for a default, open air-blast device 11 again after punch device 11 and lower mould portion 2's distance is less than this default, thereby can reduce the time that air-blast device 11 opened, reduce the energy consumption. It should be understood that other preset conditions may be selected in the embodiment of the present application, for example, after the punch device 11 starts to travel for a certain time or periodically starts, as long as the preset condition for starting the air blowing device 3 is selected to ensure that the punch device 11 and the cavity 21 are cooled and the blanking dust can be blown away from the punch device 11 and the cavity 21, and the embodiment of the present application is not limited to the specific preset conditions.

In an embodiment, as shown in fig. 2, a powder falling receiving cavity 4 may be disposed on a side of the lower mold part 2 away from the blowing device 3 for receiving powder falling generated during the punching process of the punching device. Through setting up the powder falling and taking in the chamber 4, can take in the powder falling that the air-blast device 3 blown away die cavity 21 and punch means 11 to avoid the environment in powder falling pollution equipment workshop.

Fig. 3 is a schematic structural diagram of a vertical cross section of a stamping device along a stamping stroke direction according to another embodiment of the present application. As shown in fig. 3, the punching apparatus includes:

the upper die part 1 can comprise an upper die holder 14, an upper backing plate 15, an upper clamping plate 16 and a concave die plate 17 which are sequentially arranged along the stamping stroke direction, wherein the upper clamping plate 16 is used for fixing the punch device 11, and a cavity 18 for movement of a raw material piece to be processed is arranged on the concave die plate 17;

the lower die part 2 can comprise an outer stripping plate 22, a lower clamping plate 23, a male die 24, a lower backing plate 25 and a lower die holder 26 which are sequentially arranged along the stamping stroke direction, wherein the male stripping plate 24 is arranged corresponding to the female die plate 17, and a cavity 21 for bearing a raw material piece to be processed is arranged on the outer stripping plate 22; the outer stripper plate 22 is connected with the lower clamp plate 23 through at least two discharging screws, at least two through holes are formed in the lower clamp plate 23 and the lower backing plate 25, and the at least two discharging screws are arranged in the at least two through holes in the lower clamp plate 23 and the lower backing plate 25; the lower die base 26 is provided with at least two through holes containing springs, which are arranged corresponding to the at least two discharging screws, and are used for forming a path for the at least two discharging screws to move up and down; the outer stripper plate 22 and the lower clamping plate 23 are provided with a cavity for moving a male die 24.

It should be understood that the direction along the punching stroke refers to the direction in which the punch means 11 moves toward the lower die section 2, i.e., the direction from top to bottom from the upper die section 1 to the lower die section 2 as shown in fig. 3. An upper die base 14, an upper backing plate 15, an upper clamping plate 16 and a concave die plate 17 which are sequentially arranged from top to bottom are connected together through a screw to form an upper die part 1, and a punch device 11 is fixed on the upper clamping plate 16; the lower clamping plate 23, the lower backing plate 25 and the lower die base 26 which are sequentially arranged from top to bottom are connected together through another screw, and the outer stripper plate 22 is connected with the lower clamping plate 23 through at least two discharge screws. The lower clamping plate 23 and the lower backing plate 25 are provided with at least two through holes, at least two discharging screws are positioned in the at least two through holes on the lower clamping plate 23 and the lower backing plate 25, the upper parts of the discharging screws extend to the outer stripper plate 22 to be connected with the outer stripper plate 22, and the lower parts of the discharging screws extend to the at least two through holes containing the springs of the lower die holder 26. And a distance-adjustable gap exists between the outer stripper plate 22 and the lower clamping plate 23, the distance-adjustable gap is supported by at least two discharging screws, when the upper die base 14 and the lower die base 26 close the die, the distance of the distance-adjustable gap is gradually reduced through the movement of the at least two discharging screws in the through holes containing the springs, and the travel distance of the raw material to be processed is increased. During the closing process of the upper die holder 14 and the lower die holder 26, the male die 24 will drive the material to be processed to move toward the punch device 11.

In one embodiment, the stamping device may further comprise a limiting mechanism 5 for limiting the die closing height. The limiting mechanism 5 comprises: at least one upper limiting column 51 disposed on the upper die base 14; and at least one lower limiting column 52 arranged corresponding to the at least one upper limiting column 51 and arranged on the lower die holder 26; wherein, when the upper die holder 14 and the lower die holder 26 are closed, the at least one upper limiting column 51 and the at least one lower limiting column 52 are in contact with each other.

Here, stop gear 5 can restrict the die height of closing, can restrict the distance of marcing of waiting to process the raw materials piece, forms the punching a hole of required chamfer size to not only avoid appearing because of waiting to process the situation that the punching a hole that the distance of marcing of raw materials piece is undersize and leads to is a blind hole or for a not having the punching a hole of chamfer, avoid appearing because of waiting to process the situation that the distance of marcing of raw materials piece is too big and the chamfer top edge of punching a hole has the step moreover.

It should be understood that, in the embodiment of the present application, the number of the upper limiting columns 51 and the lower limiting columns 52 may be selected according to the requirement of an actual application scenario, as long as the number of the upper limiting columns 51 and the lower limiting columns 52 selected can ensure that the lower limiting columns 52 and the upper limiting columns 51 contact with each other when the upper die base 14 and the lower die base 26 close the die, so as to avoid that the traveling distance of the material piece to be processed is too large or too small, and the effect of limiting the height of the closed die is achieved, and the specific number of the upper limiting columns 51 and the lower limiting columns 52 is not limited in the embodiment of the present application.

In an embodiment, the punching apparatus may further comprise a punching machine for driving the up-and-down movement of the punch device 11 to open and close the die of the punching apparatus. Through setting up the punching press lathe, can realize stamping equipment's automatic die sinking and die closing, improve production efficiency.

In one embodiment, the press machine may include multiple strokes. Through the punching press lathe that sets up the multi-stroke, can realize the stop of drift device 11 in a plurality of positions, for example, can set up two strokes, first stroke is the position of drift device 11 when by the die sinking to the position that is close to or contacts the raw materials spare of treating processing, the position when the second stroke is the position that is close to or contacts the raw materials spare of treating processing and closes the mould, utilize two strokes, can realize drift device 11 and stop near or contact the position of treating the raw materials spare of processing to guarantee that blower unit 3 blows off the powder that falls on drift device 11 and carries out the forced air cooling to drift device 11. It should be understood that the number of strokes of the punching machine may be selected according to practical applications, and the specific number of strokes and stroke positions of the punching machine are not limited in the embodiments of the present application.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A stamping apparatus, comprising:

the upper die part comprises a punch device for punching and forming the raw material piece to be processed;

the lower die part comprises a die cavity for bearing the raw material piece to be processed; and

the air blowing device is arranged on the lower die part;

and an air outlet of the air blowing device is close to the upper surface of the cavity.

2. Punching device according to claim 1, wherein the air blowing means comprise a plurality of air outlets arranged in an array.

3. The stamping apparatus of claim 2, wherein the plurality of air outlets include a plurality of air outlet directions, wherein at least one air outlet direction is aligned with a location where the punch device contacts the piece of stock material to be processed.

4. The stamping apparatus of claim 3, wherein at least one of the plurality of outlet air directions faces the punch arrangement in the open position.

5. Punching device according to claim 1, wherein the blowing means are activated when the distance of the punch means from the lower die section is smaller than a preset value.

6. The stamping apparatus as recited in claim 1, wherein a powder falling receiving cavity is disposed on a side of the lower die portion away from the blower for receiving powder falling generated by the stamping apparatus during stamping.

7. The stamping apparatus of claim 1, further comprising a limiting mechanism for limiting a die closing height.

8. The stamping apparatus of claim 7, wherein the limit mechanism comprises: the upper limiting column is arranged on the upper die part, and the lower limiting column is arranged on the lower die part and corresponds to the upper limiting column;

when the upper die part and the lower die part are closed, the at least one upper limiting column and the at least one lower limiting column are in contact with each other.

9. The stamping apparatus of claim 1, further comprising a stamping machine for driving the lifting movement of the punch arrangement to effect opening and closing of the stamping apparatus.

10. The stamping apparatus of claim 9, wherein the stamping machine includes multiple strokes.