CN214977120U

CN214977120U - Large-area circulator cover plate stamping die

Info

Publication number: CN214977120U
Application number: CN202120512275.9U
Authority: CN
Inventors: 李海源
Original assignee: Dongguan Shengyuan Precision Hardware Products Co ltd
Current assignee: Dongguan Shengyuan Precision Hardware Products Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-12-03
Anticipated expiration: 2031-03-10

Abstract

The utility model belongs to the technical field of circulators, in particular to a large-area circulator cover plate stamping die, which comprises a lower fixed die and an upper stamping die, wherein the lower fixed die is provided with a primary punching hole position, a boss punching position and a secondary punching hole position, the upper stamping die is fixed with a cover plate stamping column, two boss stamping columns and two round stamping columns, during stamping, the two round stamping columns punch holes on the surface of a material belt and form a disc on the surface of the material belt, because the boss stamping positions are provided with two boss forming holes, during stamping, the boss stamping columns press the disc above the boss forming holes, finally form a primary boss on the bottom surface of the disc, the disc enters the boss forming gap at the part of the periphery of the primary boss under the stamping of the upper stamping die to form a secondary boss, and the stamping die can adapt to the stamping of the large-area circulator cover plate through the arrangement, the practical performance of the stamping die is effectively improved.

Description

Large-area circulator cover plate stamping die

Technical Field

The utility model belongs to the technical field of the circulator, especially, relate to a large tracts of land circulator apron stamping die.

Background

The circulator is a device for making electromagnetic wave transmit in one-way ring shape, and the circulator with one-way ring characteristic is used in both modern radar and microwave multi-path communication systems.

The basic structure of the circulator comprises a cover plate and a cavity, wherein a pressing buckle protrusion is arranged on the cover plate, a buckling groove matched with the pressing buckle protrusion is formed in the cavity, and the pressing buckle protrusion is buckled into the buckling groove to assemble the circulator.

The apron generally makes the punching press of material area among the prior art through dedicated stamping die, stamping die includes lower fixed mould and upper punch die, lower fixed mould and upper punch die all are fixed in on the lathe, during the punching press, the material area conveys on lower fixed mould, in the data send process, the lathe drives the upper punch die and descends and punches a hole to the material area, and a plurality of sizes and the same disc of thickness are punched out, behind the surperficial stroke disc in material area, carry out the stroke boss of punching press by the punching press grinding apparatus to the surface of disc, the preparation of accomplishing the apron is gone out from the material area to the disc that will have the boss at last.

However, the existing circulator cover plate stamping die is generally only suitable for stamping 7mm small-area cover plates, but compared with the manufacturing of 10mm large-area cover plates, because the surfaces of the circular discs formed by stamping the material belts form the overlapped circular truncated cones during the stamping of the large-area cover plates, the existing circulator cover plate stamping die can only complete the stamping of one boss, and therefore the manufacturing of the large-area cover plates is difficult to complete.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large tracts of land circulator apron stamping die aims at solving the circulator apron stamping die among the prior art and is difficult to accomplish the technical problem that 10 mm's circulator apron punching press was made by the large tracts of land.

In order to achieve the above object, an embodiment of the present invention provides a large-area circulator cover plate stamping die, including a lower fixed die and an upper stamping die fixed on a machine tool, the upper stamping die and the lower fixed die are arranged relatively and located above the lower fixed die, the surface of the lower fixed die is provided with a material belt conveying channel for conveying a material feeding belt, which is characterized in that: the lower fixed die is sequentially provided with a primary punching hole position, a boss punching position and a secondary punching hole position along the direction of the material belt conveying channel, the upper punching die is fixedly provided with a cover plate punching column, two boss punching columns and two round punching columns, the two round punching columns are oppositely arranged and positioned above the primary punching hole position and used for punching holes on the surface of the material belt, a disc is formed on the surface of the material belt, the boss punching position is provided with two boss forming holes with the same size, the peripheral side of the boss forming hole far away from the primary punching hole position is provided with an annular bulge, a boss forming gap is arranged between the annular bulge and the boss forming hole, the two boss punching columns are respectively positioned right above the two boss forming holes, and the cover plate punching column is positioned above the secondary punching hole position and used for punching the disc of the material belt, and punching the disc with the boss out of the material belt.

Optionally, two boss forming columns are arranged in the boss forming holes, two return springs are arranged in the lower fixed die, one ends of the two return springs respectively abut against the two boss forming columns, and the other ends of the two return springs respectively abut against the inner wall of the lower fixed die.

Optionally, the upper stamping die includes a bolt, a driving die and a cushion die located below the driving die, the bolt includes a screw rod and a threaded sleeve, the screw rod is in threaded connection with the cushion die and extends towards the driving die, the threaded sleeve is sleeved on the surface of the screw rod and is in threaded connection with the screw rod, the driving die is in sliding connection with the threaded sleeve, and the boss stamping column, the cover plate stamping column and the circular face stamping column are all fixed on the stamping die and extend to the inside of the cushion die.

Optionally, the upper punch die further comprises a damping spring located between and abutting the drive die and the cushion die.

Optionally, the lower fixed die includes a base die, a disc punch hole and a cover plate punch hole corresponding to the circular face punching column and the cover plate punching column respectively are provided on a surface of the base die, a shape of the disc punch hole and a shape of the cover plate punch hole are respectively the same as a cross-sectional shape of the circular face punching column and a cross-sectional shape of the cover plate punching column, and both the disc punch hole and the cover plate punch hole penetrate through the base die.

Optionally, the lower fixed die further comprises two oppositely arranged supporting dies, the base die is fixed above the two supporting dies, a cover plate output channel is arranged between the two supporting dies, and the disc punching hole and the cover plate punching hole are communicated with the cover plate output channel.

Optionally, a limiting punching column and a limiting column are further fixed on the upper punching die, the limiting punching column is located above the primary punching hole, the limiting column is located above the primary punching hole, the boss punching position and the secondary punching hole, the punching column is used for punching the surface of the material belt to form the limiting hole, and during punching, the limiting column is inserted into the limiting hole.

Optionally, the stamping die further includes a positioning column, the positioning column is fixed to the upper stamping die, a positioning hole is formed in the lower fixed die and is opposite to the positioning column, and the positioning column is inserted into the positioning hole during stamping.

Optionally, stamping die still includes damper assembly, damper assembly includes shock attenuation post, stroke spring and cushion collar, the shock attenuation post is fixed in on the fixed mould down, stroke spring with the cushion collar is all located the surface of shock attenuation post, the one end of stroke spring with the fixed mould down offsets, the other end of stroke spring with the cushion collar offsets, be provided with on the upper punch-die with the cushion hole that the cushion collar corresponds, during the punching press, the cushion collar enters into the inside in cushion hole.

Optionally, the surface of the buffer sleeve is provided with a plurality of friction protrusions.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the large tracts of land circulator apron stamping die have one of following technological effect at least: the cover plate stamping die for the circulator comprises a lower fixed die and an upper stamping die, wherein the lower fixed die is fixed when the circulator works, the upper stamping die is driven by a machine tool to ascend or descend towards the lower fixed die, the lower fixed die is sequentially provided with a primary stamping position, a boss stamping position and a secondary stamping position along the direction of a material belt conveying path, a cover plate stamping column, two boss stamping columns and two round stamping columns are fixed on the upper stamping die, the two round stamping columns punch holes on the surface of the material belt and form a circular disc on the surface of the material belt during stamping, as the boss stamping positions are provided with two boss forming holes with the same size, the two boss stamping columns are respectively positioned right above the two boss forming holes, during stamping, the boss stamping columns press the circular disc positioned above the boss forming holes, and part of the circular disc enters the boss forming holes, and the rest of the circular disc is pressed by the bottom surface of the upper stamping die, finally, a primary boss is formed on the bottom surface of the disc, an annular bulge is arranged on the periphery of a boss forming hole far away from the primary punching hole position, and a boss forming gap is arranged between the annular bulge and the boss forming hole, so that after the disc forms the primary boss, the part of the periphery of the primary boss enters the boss forming gap to form a secondary boss under the punching of an upper punching die by the disc, the rest part is pressed by the annular bulge, the punching of multiple layers of bosses is finally completed, and the disc with the boss is punched out of the material belt by a cover plate punching column after the punching of the boss is completed; through the arrangement, the stamping die can be suitable for stamping the large-area circulator cover plate, so that the practical performance of the stamping die is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a large-area circulator cover plate stamping die provided by an embodiment of the present invention.

Fig. 2 is a side view of a large-area circulator cover plate stamping die according to an embodiment of the present invention.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

Fig. 5 is a sectional view taken along line C-C in fig. 2.

Fig. 6 is a schematic structural diagram of a lower fixed mold of a large-area circulator cover plate stamping die according to an embodiment of the present invention.

Fig. 7 is a partial enlarged view of a portion a in fig. 6.

Fig. 8 is a schematic structural diagram of an upper punch die of a large-area circulator cover plate stamping die according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of the material belt provided by the present invention.

Wherein, in the figures, the respective reference numerals:

10-lower fixed die 11-first support column 12-second support column

13-material belt conveying channel 14-one-time hole punching position 15-boss punching position

16-secondary punching hole position 17-material belt punching position 20-upper punching die

21-boss stamping column 22-cover plate stamping column 23-round surface stamping column

24-limiting punching column 25-limiting column 26-driving die

27-buffer die 28-bolt 29-damping spring

30-base die 31-top die 32-middle die

33-bottom die 34-boss forming hole 35-disc punching

36-cover plate punching 37-positioning hole 40-supporting die

41-cover plate output channel 50-damping component 51-damping column

52-stroke spring 53-buffer sleeve 111-first supporting groove

112-support table 121-second support groove 122-connecting part

123-abutting end 124-supporting end 125-supporting spring

231-semicircular cambered surface 261-buffer hole 271-positioning column

272-support limit hole 273-material-breaking punching column 281-screw

282-thread insert 311-material-breaking buffer inclined plane 331-stroke cavity

332-thread adjusting piece 341-boss forming column 342-reset spring

343 annular projection 344-boss forming gap 531-friction projection

10 a-material belt 11 a-disc 12 a-primary boss

13 a-secondary boss 14 a-spacing hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, there is provided a large-area circulator cover plate stamping die, including a lower fixed die 10 and an upper stamping die 20 fixed on a machine tool, the upper stamping die 20 being disposed opposite to the lower fixed die 10 and located above the lower fixed die 10, a material belt conveying path 13 for conveying a material belt being provided on a surface of the lower fixed die 10, characterized in that: the lower fixed die 10 is sequentially provided with a primary punching position 14, a boss punching position 15 and a secondary punching position 16 along the conveying direction of a material strip 10a, two boss punching posts 21, a cover plate punching post 22 and two round punching posts 23 are fixed on the upper punching die 20, the two round punching posts 23 are oppositely arranged and positioned above the primary punching position 14 and used for punching on the surface of the material strip 10a, a circular disc 11a is formed on the surface of the material strip 10a, the boss punching position 15 is provided with two boss forming holes 34 with the same size, the periphery of the boss forming hole 34 far away from the primary punching position 14 is provided with an annular bulge 343, a boss forming gap 344 is arranged between the annular bulge 343 and the boss forming hole 34, the two boss punching posts 21 are respectively positioned right above the two boss forming holes 34, the cover plate punching post is positioned above the secondary punching position 16 and used for punching on the circular disc of the material strip, and punching the disc with the boss out of the material belt.

In this embodiment, further, a plurality of first support columns 11 arranged at intervals and a plurality of second support columns 12 arranged opposite to the first support columns 11 are arranged on the surface of the lower fixed mold 10, a first support groove 111 for placing one side of the material tape 10a is arranged on one surface of each first support column 11 close to the second support column 12, a second support groove 121 arranged opposite to the first support groove 111 and for placing the other side of the material tape 10a is arranged on one surface of each second support column 12 close to the first support column 11, the primary punching hole site 14, the boss punching site 15 and the secondary punching hole site 16 are all located between the first support groove 111 and the second support groove 121, two circular punching columns 23 are arranged opposite to each other and located above the primary punching hole site 14, two opposite side surfaces of the two circular punching columns 23 are all provided with semicircular arc surfaces 231, the round punching column 23 is used for punching the material strip 10a, a disc 11a is formed on the surface of the material strip 10a, a boss 12a round hole is formed in the boss punching position 15, the boss punching column 21 is located right above the boss punching position 15, the boss punching column 21 is located above the boss punching position 15 and is used for punching the surface of the disc 11a of the material strip 10a to form a boss 12a, and the cover plate punching column 22 is located above the secondary punching hole 16 and is used for punching the disc 11a of the material strip 10a, and punching the disc 11a with the boss 12a out of the material strip 10 a.

Specifically, the stamping die for the cover plate of the circulator comprises a lower fixed die 10 and an upper stamping die 20, when the stamping die works, the lower fixed die 10 is fixed, the upper stamping die 20 is driven by a machine tool to ascend or descend towards the direction of the lower fixed die 10, the surface of the lower fixed die 10 is provided with a plurality of first supporting columns 11 arranged at intervals and a plurality of second supporting columns 12 arranged opposite to the first supporting columns 11, the first supporting columns 11 and the second supporting columns 12 are connected to form a material belt conveying channel 13 for conveying the material belt 10a, the first supporting columns 11 and the second supporting columns 12 can limit the material belt 10a to avoid the material belt 10a from deviating in the conveying process, one surface of the first supporting column 11, which is close to the second supporting columns 12, is provided with a first supporting groove 111 for placing one side of the material belt 10a, one surface of the second supporting columns 12, which is close to the first supporting columns 11, is provided with a second supporting groove 121 arranged opposite to the first supporting groove 111 for placing the other side of the material belt 10a, during stamping, two sides of the material belt 10a are respectively placed on the first supporting groove 111 and the second supporting groove 121, and the material belt 10a can be conveyed away from the surface of the lower fixed die 10 through the arrangement of the first supporting groove 111 and the second supporting groove 121, so that the conveying rate of the material belt 10a is effectively improved; the lower fixed die 10 is provided with a primary punching position 14, a boss punching position 15 and a secondary punching position 16 in sequence along the conveying direction of the material strip 10a, a boss punching column 21, a cover plate punching column 22 and two round surface punching columns 23 are fixed on an upper punching die 20, during punching, the front end of the first material strip 10a of the two round surface punching columns 23 punches a hole, so that the surface of the material strip 10a forms a hole with the same section as that of the round surface punching column 23, because the two opposite side surfaces of the two round surface punching columns 23 are respectively provided with a semicircular arc surface 231, after punching, two opposite semicircular arc surfaces can be formed on the surface of the material strip 10a, a disc 11a can be formed on the surface of the material strip 10a through the combination of a plurality of semicircular arc surfaces, and a connecting strip on the side edge of the disc 11a is fixedly connected with the material strip 10 a.

When the boss is punched, the boss punching column presses the disc positioned above the boss forming hole 34, part of the disc enters the boss forming hole 34, the rest part of the disc is pressed by the bottom surface of the upper punching die 20, and finally the primary boss 12a is formed on the bottom surface of the disc, because the circumferential side of the boss forming hole 34 far away from the primary punching hole is provided with the annular bulge 343, and a boss forming gap 344 is formed between the annular bulge 343 and the boss forming hole 34, after the disc forms the primary boss 12a, the disc enables the part of the circumferential side of the primary boss 12a to enter the boss forming gap 344 to form the secondary boss 13a under the punching of the upper punching die 20, and the rest part of the disc is pressed by the annular bulge 343, so that the punching of multiple layers of bosses is finally completed, and the disc with the bosses is punched out of the material belt by the cover plate punching column 22 after the punching of the bosses is completed; through the arrangement, the stamping die can be suitable for stamping the large-area circulator cover plate, so that the practical performance of the stamping die is effectively improved.

In another embodiment of the present invention, two boss forming pillars 341 are disposed in the boss forming holes 34, two return springs 342 are disposed inside the lower fixing mold 10, two return springs 342 are disposed at one end of each of the boss forming pillars 341 and two ends of each of the return springs 342 abut against the inner wall of the lower fixing mold 10.

Specifically, with the above arrangement, when the primary boss 12a12a on the surface of the disc 11a enters the boss forming hole 34, it will abut against the boss forming pillar 341 and compress the return spring 342, which on the one hand facilitates the forming of the primary boss 12a12a, and on the other hand prevents the primary boss 12a12a from being jammed in the boss forming hole 34 and unable to return when the upper stamping die 20 is lifted, and it is convenient for the primary boss 12a12a to eject the boss forming hole 34.

In another embodiment of the present invention, the upper stamping die 20 is further fixed with a material breaking punching column 273, the end of the lower fixed die 10 is further provided with a material strip punching position 17, the material breaking punching column 273 is located above the material strip punching position 17, the side of the lower fixed die 10 is provided with a material breaking buffer inclined plane 311, and the material breaking buffer inclined plane 311 is located on one side of the material strip punching position 17. Specifically, after the tape 10a is punched, the tape is punched at the tape punching position 17 at the tail end of the tape conveying path 13 by the material-cutting punching column 273, and the punched waste is guided out by the buffer inclined plane 311.

In another embodiment of the present invention, the upper punch mold 20 includes a bolt 28, a driving mold 26 and a cushion mold 26 located below the driving mold 26, the bolt 28 includes a screw 281 and a threaded sleeve 282, the screw 281 and the cushion mold 26 are connected by screw threads and extend towards the driving mold 26, the threaded sleeve 282 is sleeved on the surface of the screw 281 and connected by screw threads, the driving mold 26 is connected by sliding of the threaded sleeve 282, the boss punching column 21, the cover plate punching column 22 and the circular face punching column 23 are all fixed on the punching mold and extend to the inside of the cushion mold 26.

Specifically, the cushion die 26 and the driving die 26 are connected by the bolt 28, and since the threaded sleeve 282 of the bolt 28 is slidably connected with the driving die 26, during punching, the cushion die 26 will abut against the surface of the lower fixed die 10, and drive the cushion die 26 and the bolt 28 to rise, and expose the boss punching column 21, the cover plate punching column 22 and the round surface punching column 23 for punching respectively, and the cushion die 26 can protect the boss punching column 21, the cover plate punching column 22 and the round surface punching column 23 on one hand, and prevent the boss punching column 21, the cover plate punching column 22 and the round surface punching column 23 from deforming during punching on the other hand.

In another embodiment of the present invention, the upper punch die 20 further comprises a damping spring 29, the damping spring 29 being located between the drive die 26 and the cushion die 26 and abutting against the drive die 26 and the cushion die 26. Specifically, the damper spring 29 is compressed when the cushion die 26 is raised, and the cushion die 26 is prevented from colliding with the drive die 26 when raised, thereby protecting the structure of the upper punch 20 and reducing vibration generated in the upper punch 20 during punching.

In another embodiment of the present invention, the lower fixed die 10 includes a base die 30, the surface of the base die 30 is provided with a disc punch hole 35 and a cover punch hole 36 corresponding to the circular face punching column 23 and the cover punching column 22, respectively, the shape of the disc punch hole 35 and the shape of the cover punch hole 36 are the same as the cross-sectional shape of the circular face punching column 23 and the cross-sectional shape of the cover punching column 22, respectively, and the disc punch hole 35 and the cover punch hole 36 all penetrate through the base die 30. Specifically, with the above arrangement, the waste and the cover punched by the circular surface punching and cover plate punching column 22 fall below the base die 30 through the circular disk punching 35 and the cover plate punching 36, respectively, and are output through another conveying passage, which provides convenience for the output work of the cover plate and the waste.

In another embodiment of the present invention, the lower fixed mold 10 further comprises two opposite supporting molds 40, the base mold 30 is fixed on two of the supporting molds 40, two of the cover plate output channels 41 are arranged between the supporting molds 40, and the disc punch 35 and the cover plate punch 36 are communicated with the cover plate output channels 41. Specifically, the support die 40 facilitates the fixing work of the lower fixed die 10 to the machine tool, and the cover output passage 41 provided between the support dies 40 facilitates the output of the cover and the waste.

In another embodiment of the present invention, the lower fixed mold 10 further comprises a plurality of supporting springs 125, the inside of the base mold 30 is provided with a stroke cavity 331 corresponding to the supporting springs 125, the first supporting column 11 and the second supporting column 12 all extend into the stroke cavity 331 and are slidably connected to the base mold 30, and the supporting springs 125 are disposed in the stroke cavity 331. Specifically, during punching, the lower fixed mold 10 presses the first support column 11 and the second support column 12 downward and compresses the support springs 125, and drives the material strip 10a to descend, so that the material strip 10a is finally attached to the surface of the lower fixed mold 10, thereby facilitating the punching of the material strip 10a by the upper punching mold 20.

In another embodiment of the present invention, a threaded adjusting part 332 is disposed inside the stroke cavity 331, the threaded adjusting part 332 is in threaded connection with the inner wall of the stroke cavity 331, one end of the supporting spring 125 abuts against the threaded adjusting part 332, and the other end of the supporting spring 125 abuts against the first supporting column 11 and the second supporting column 12. Specifically, the compression stroke of the support spring 125 can be adjusted by adjusting the threaded adjustment member 332 to adjust the punching force when the upper punch 20 punches the material strip 10 a.

In another embodiment of the present invention, the first supporting column 11 and the second supporting column 12 each include a connecting portion 122, a butt end 123 and a supporting end 124, the butt end 123 is located at a position where the connecting portion 122 is close to one end of the stroke cavity 331 and abuts against the supporting spring 125, the supporting end 124 is located at a position where the butt end 123 is far away from one end of the stroke cavity 331 and extends to the top of the base mold 30, and the radius of the connecting portion 122 is smaller than the width of the butt end 123 and the supporting end 124. Specifically, the abutting end 123 and the supporting end 124 can facilitate the abutment of the supporting spring 125 and the pressing of the upper punch 20, respectively, and the connecting portion 122 can facilitate the balance of the first supporting column 11 and the second supporting column 12, and facilitate the sliding of the first supporting column 11 and the second supporting column 12 on the lower fixing die 10.

In another embodiment of the present invention, the base mold 30 includes a middle mold 23 and a top mold 31 and a bottom mold 33 fixed on two sides of the middle mold 23, the bottom mold 33 is fixed on the supporting mold 40, the connecting portion 122 is disposed inside the middle mold 32, the stroke cavity 331 is disposed inside the bottom mold 33, and the supporting end 124 is extended inside the top mold 31 to the top of the top mold 31. Specifically, since the radius of the connecting portion 122 is different from the widths of the abutting end 123 and the supporting end 124, dividing the lower fixed die 10 into three parts for manufacturing effectively reduces the difficulty in processing the lower fixed die 10.

In another embodiment of the present invention, the upper stamping die 20 is provided with a supporting limiting hole 272 corresponding to the supporting end 124, and when the upper stamping die 20 performs stamping, the supporting end 124 is located in the supporting limiting hole 272. Specifically, the arrangement of the support limiting hole 272 can effectively prevent the first support column 11 and the second support column 12 from shifting during stamping, so that unnecessary friction between the first support column 11 and the second support column 12 and the lower fixed mold 10 is caused, and the service life of the stamping mold is effectively prolonged.

In another embodiment of the present invention, a supporting platform 112 is disposed on one side of the supporting end 124 away from the first supporting groove 111 and the second supporting groove 121, and when the upper stamping die 20 stamps, the bottom surface of the upper stamping die 20 is abutted against the supporting platform 112. Specifically, the first support column 11 and the second support column 12 are pressed by the support table 112, which facilitates the punching of the strip 10 a.

In the utility model discloses a further embodiment, still be fixed with spacing punching post 24 and spacing post 25 on the upper punch die 20, spacing punching post 24 is located once towards the top of hole site 14, spacing post 25 is located once towards hole site 14 boss punching position 15 with the secondary towards the top of hole site 16, the punching post is used for forming spacing hole 14a at the surface punching press of material area 10a, during the punching press, spacing post 25 inserts in spacing hole 14 a.

Specifically, during punching, the limiting punching column 24 punches the surface of the material strip 10a at the front end of the material strip 10a to form the limiting hole 14a, and when the boss 12a and the disc 11a are punched, the limiting column 25 enters the limiting punching column 24 to limit the material strip 10a, so that the material strip 10a is prevented from deviating in the punching process, and the punching precision of the cover plate is effectively improved.

In another embodiment of the present invention, the stamping die further includes a positioning column 271, the positioning column 271 is fixed on the upper stamping die 20, the positioning hole 37 is provided on the lower fixing die 10, and the positioning column 271 is inserted into the positioning hole 37 during stamping. Specifically, the positioning posts 271 can effectively prevent the upper punch 20 and the lower fixed die 10 from shifting during the punching process, and effectively improve the punching accuracy of the cover plate.

In another embodiment of the present invention, the stamping die further includes a damping component 50, the damping component 50 includes a damping post 51, a stroke spring 52 and a buffering sleeve 53, the damping post 51 is fixed on the lower fixed die 10, the stroke spring 52 spring and the buffering sleeve 53 are all sleeved on the surface of the damping post 51, the one end of the stroke spring 52 is abutted against the lower fixed die 10, the other end of the stroke spring 52 is abutted against the buffering sleeve 53, the upper stamping die 20 is provided with a buffering hole 261 corresponding to the buffering sleeve 53, and during stamping, the buffering sleeve 53 enters into the inside of the buffering hole 261. Specifically, during punching, the stroke spring 52 is driven by the cushion collar 53 to compress the stroke spring 52, so as to reduce the impact on the lower fixed die 10 during punching by the lower punch die and reduce the vibration generated during punching by the punch die.

In another embodiment of the present invention, the surface of the buffer sleeve 53 is provided with a plurality of friction protrusions 531.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A large-area circulator cover plate stamping die comprises a lower fixed die and an upper stamping die which are fixed on a machine tool, wherein the upper stamping die is arranged opposite to the lower fixed die and is positioned above the lower fixed die, and a material belt conveying channel conveyed by a feeding belt is arranged on the surface of the lower fixed die, and the stamping die is characterized in that: the lower fixed die is sequentially provided with a primary punching hole position, a boss punching position and a secondary punching hole position along the direction of the material belt conveying channel, the upper punching die is fixedly provided with a cover plate punching column, two boss punching columns and two round punching columns, the two round punching columns are oppositely arranged and positioned above the primary punching hole position and used for punching holes on the surface of the material belt, a disc is formed on the surface of the material belt, the boss punching position is provided with two boss forming holes with the same size, the peripheral side of the boss forming hole far away from the primary punching hole position is provided with an annular bulge, a boss forming gap is arranged between the annular bulge and the boss forming hole, the two boss punching columns are respectively positioned right above the two boss forming holes, and the cover plate punching column is positioned above the secondary punching hole position and used for punching the disc of the material belt, and punching the disc with the boss out of the material belt.

2. The large area circulator cover plate stamping die of claim 1, wherein: the two boss forming holes are internally provided with boss forming columns, the lower fixed die is internally provided with two return springs, one ends of the two return springs respectively abut against the two boss forming columns, and the other ends of the two return springs respectively abut against the inner wall of the lower fixed die.

3. The large area circulator cover plate stamping die of claim 1, wherein: the upper stamping die comprises a bolt, a driving die and a buffer die positioned below the driving die, the bolt comprises a screw rod and a threaded sleeve, the screw rod is in threaded connection with the buffer die and extends towards the driving die, the threaded sleeve is sleeved on the surface of the screw rod and is in threaded connection with the screw rod, the driving die is in sliding connection with the threaded sleeve, and the boss stamping column, the cover plate stamping column and the circular surface stamping column are all fixed on the stamping die and extend into the buffer die.

4. The large area circulator cover plate stamping die of claim 3, wherein: the upper stamping die further comprises a damping spring, and the damping spring is located between the driving die and the buffer die and is abutted against the driving die and the buffer die.

5. The large area circulator cover plate stamping die of claim 1, wherein: the lower fixed die comprises a base die, wherein a disc punching hole and a cover plate punching hole which correspond to the circular face punching column and the cover plate punching column respectively are arranged on the surface of the base die, the shape of the disc punching hole and the shape of the cover plate punching hole are respectively identical to the cross section shape of the circular face punching column and the cross section shape of the cover plate punching column, and the disc punching hole and the cover plate punching hole penetrate through the base die.

6. The large area circulator cover plate stamping die of claim 5, wherein: the lower fixed die further comprises two oppositely arranged supporting dies, the base die is fixed above the two supporting dies, a cover plate output channel is arranged between the two supporting dies, and the disc punching hole and the cover plate punching hole are communicated with the cover plate output channel.

7. The large area circulator cover plate stamping die of any one of claims 1-6, wherein: the upper punching die is further fixed with a limiting punching column and a limiting column, the limiting punching column is located above the primary punching hole, the limiting column is located above the primary punching hole, the boss punching position and the secondary punching hole, the punching column is used for punching the surface of the material belt to form a limiting hole, and during punching, the limiting column is inserted into the limiting hole.

8. The large area circulator cover plate stamping die of any one of claims 1-6, wherein: the stamping die further comprises a positioning column, the positioning column is fixed on the upper stamping die, a positioning hole opposite to the positioning column is formed in the lower fixed die, and the positioning column is inserted into the positioning hole during stamping.

9. The large area circulator cover plate stamping die of any one of claims 1-6, wherein: stamping die still includes damper assembly, damper assembly includes shock attenuation post, stroke spring and cushion collar, the shock attenuation post is fixed in on the fixed mould down, stroke spring with the cushion collar all overlaps and locates the surface of shock attenuation post, the one end of stroke spring with the fixed mould offsets down, the other end of stroke spring with the cushion collar offsets, be provided with on the upper punch-die with the buffer hole that the cushion collar corresponds, during the punching press, the cushion collar enters into the inside in buffer hole.

10. The large area circulator cover plate stamping die of claim 9, wherein: the surface of the buffer sleeve is provided with a plurality of friction bulges.