CN214644256U - Punching die for special-shaped pipe - Google Patents

Punching die for special-shaped pipe Download PDF

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Publication number
CN214644256U
CN214644256U CN202120026604.9U CN202120026604U CN214644256U CN 214644256 U CN214644256 U CN 214644256U CN 202120026604 U CN202120026604 U CN 202120026604U CN 214644256 U CN214644256 U CN 214644256U
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China
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mould
top surface
punch
connecting block
special
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CN202120026604.9U
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Chinese (zh)
Inventor
鲁斯超
劳若望
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Ningbo Shunbang Mould Technology Co ltd
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Ningbo Shunbang Mould Technology Co ltd
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Abstract

The utility model discloses a cut-out press of mechanical tubes aims at providing a cut-out press of mechanical tubes that makes the outside of tubes burr-free. It includes mould and lower mould, the bottom surface rigid coupling of last mould has the top punch, the rigid coupling has the lower punch on the top surface of lower mould, sliding connection has the plug on the lower mould, the plug is left right direction and arranges in between mould and the lower mould, all be equipped with on the top surface of plug and the bottom surface and punch a hole, top punch and lower punch all correspond with punching a hole, be equipped with the guiding hole that link up top surface and bottom surface on the last mould, the front end right side and the lower extreme left side of mould are arranged in to the guiding hole, the rigid coupling has the guide post that corresponds and mate with the guiding hole on the top surface of lower mould, the rigid coupling has spacing post on the bottom surface of lower mould, the lower extreme right side and the upper end left side of lower mould are arranged in to spacing post, spacing post and last mould contact. The utility model has the advantages that: the upper punch and the lower punch the special-shaped pipe from the outer surface of the special-shaped pipe to the inside of the special-shaped pipe, so that no burrs are left outside the pipe.

Description

Punching die for special-shaped pipe
Technical Field
The utility model belongs to the technical field of the relevant technique of mould and specifically relates to a cut-out press of mechanical tubes.
Background
Punching, it is in order to adapt to different demands specifically to have: splayed holes, hexagonal holes, punching plates, long holes, square holes, round holes, punching plate nets, triangular holes and the like. Compared with the plate punching, the pipe punching has many same points in the aspects of deformation property, deformation characteristic and the like, but because the pipe is a hollow cylindrical blank, the pipe wall contacted by the convex die and the concave die is an arc surface instead of a plane like the plate, special technological measures and a die structure form are needed. In the traditional punching method, a through hole is processed on a flat plate by using a stamping die.
The special-shaped pipe is a seamless steel pipe which is made into various special shapes by cold drawing. The special pipes are generally distinguished according to the section, and can be divided into seamless steel pipe special pipes, aluminum alloy special pipes and plastic special pipes according to materials.
Moulds (Mule) are used for obtaining various moulds and tools of required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The blank is formed into a tool with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.
For punching two through holes in a special-shaped pipe, the conventional operation is that a punch directly punches the two holes from top to bottom, so that burrs are generated on the edge of the second hole, and if a plurality of through holes are punched, the time spent on removing the burrs later is long and troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome among the prior art two hole material surfaces about mechanical tubes dashes and have the not enough of burr, provide a cut-out press of mechanical tubes who makes the no burr outside of tubes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a cut-out press of mechanical tubes, includes mould and lower mould, the bottom surface rigid coupling of going up the mould has the punch pin, the rigid coupling has the lower punch pin on the top surface of lower mould, sliding connection has the plug on the lower mould, the plug is about the direction arrange in between mould and the lower mould, all be equipped with on the top surface of plug and the bottom surface and punch a hole, it is all corresponding with punching a hole to go up punch pin and lower punch pin, it is equipped with the guiding hole that link up top surface and bottom surface on the mould, the front end right side and the rear end left side of mould are arranged in to the guiding hole, the rigid coupling has the guide post corresponding and matcing with the guiding hole on the top surface of lower mould, the rigid coupling has spacing post on the bottom surface of lower mould, the lower extreme right side and the upper end left side of lower mould are arranged in to spacing post, spacing post and last mould contact.
When the upper die and the lower die are separated, the special-shaped pipe is sleeved on the core rod, then the upper die is folded downwards with the lower die, the upper punch contacts the special-shaped pipe, the core rod is connected with the lower die in a sliding mode, the upper punch enables the core rod to slide downwards to enable the special-shaped pipe to contact with the lower punch, then the upper punch and the lower punch start to punch the special-shaped pipe sleeved on the core rod, and the special-shaped pipe is punched from the outer surface of the special-shaped pipe to the inside of the special-shaped pipe through the upper punch and the lower punch, so that no burrs exist outside the pipe.
Preferably, the lower die is provided with a connecting block, a vertical clamping sliding groove is formed in the right side face of the connecting block, the cross section of the clamping sliding groove is T-shaped, the bottom face of the connecting block is fixedly connected with the top face of the lower die, the left side of the mandrel is arranged in the connecting block, the mandrel is provided with a clamping sliding block, the cross section of the clamping sliding block is T-shaped, one end of the clamping sliding block is arranged in the clamping sliding groove, and the other end of the clamping sliding block is fixedly connected with the left end of the mandrel. The clamping sliding groove of the connecting block is matched with the clamping sliding block of the core rod, so that the core rod can move up and down and does not rotate when moving, and the punching accuracy is facilitated.
Preferably, the top surface of the lower die is provided with a front-back elongated slot, the elongated slot is arranged between the lower punch and the connecting block, the elongated slot is internally provided with an elastic block and a plurality of springs, the springs are uniformly distributed in the elongated slot from front to back, two ends of each spring are fixedly connected with the bottom surface of the elastic block and the bottom surface of the elongated slot respectively, and the top surface of the elastic block is contacted with the bottom surface of the mandrel. Before the mould is closed, the elastic block is firstly ejected out of the top surface of the lower mould by the spring, so that the elastic block ejects the core rod out of the bottom surface of the core rod to a position higher than the top surface of the lower punch, the special-shaped pipe can be sleeved on the core rod, the elastic block is pressed back to the long groove by the core rod when the mould is closed, and the elastic block has a positioning function, so that the position of the special-shaped pipe sleeved on the core rod is fixed.
Preferably, a storage cavity is arranged in the core rod, the storage cavity penetrates through the right side face of the core rod, and the cavity is communicated with the punched hole. The waste materials punched by the special pipe exist in the storage cavity, the punched holes do not need to be cleaned every time, and the storage cavity accelerates the punching frequency.
Preferably, the height of the connecting block is consistent with that of the limiting column. The connecting block and the limiting column play a role in limiting, and punching safety is facilitated.
Preferably, the card sliding groove penetrates through the top surface of the connecting block. Through the card spout, can take out the plug, the plug can be dismantled, change the convenience.
The utility model has the advantages that: the upper punch and the lower punch the special pipe from the outer surface of the special pipe to the special pipe, so that no burrs are formed outside the special pipe; the clamping sliding groove of the connecting block is matched with the clamping sliding block of the core rod, so that the core rod can move up and down and can not rotate when moving, and the punching accuracy is facilitated; the elastic block pushes the core rod out to the position where the bottom surface of the core rod is higher than the lower punch, so that the special pipe can be sleeved on the core rod, and the elastic block has a positioning function, so that the position where the special pipe is sleeved on the core rod is fixed; waste materials punched from the special pipe are stored in the storage cavity, the punching holes do not need to be cleaned every time, and the storage cavity enables the punching frequency to be accelerated; the connecting block and the limiting column play a role in limiting, and punching safety is facilitated.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 at A-A, and FIG. 2 is a schematic view of the mold closing;
FIG. 3 is a cross-sectional view of FIG. 1 at A-A, and FIG. 3 is a schematic view of the mold being separated;
FIG. 4 is an exploded view of FIG. 1;
fig. 5 is a schematic view of the structure of the elastic block and the spring in the long groove.
In the figure: 1. the device comprises an upper die, a lower die, 3 an upper punch, 4 a lower punch, 5 a core rod, 6 a punching hole, 7 a guide hole, 8 a guide post, 9 a limiting post, 10 a connecting block, 11 a clamping sliding groove, 12 a clamping sliding block, 13 an elongated slot, 14 an elastic block, 15 a spring and 16 a storage cavity.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1, a die for punching 6 a profile tube comprises an upper die 1 and a lower die 2, as shown in fig. 2, an upper punch 3 is fixed on the bottom surface of the upper die 1, a lower punch 4 is fixed on the top surface of the lower die 2, a core rod 5 is connected on the lower die 2 in a sliding way, the core rod 5 is arranged between the upper die 1 and the lower die 2 in the left-right direction, as shown in fig. 3, the top and bottom surfaces of the core rod 5 are provided with punched holes 6, the upper and lower punches 3 and 4 correspond to the punched holes 6, as shown in fig. 4, the upper die 1 is provided with a guide hole 7 penetrating through the top surface and the bottom surface, the guide hole 7 is arranged on the right side of the front end and the left side of the rear end of the upper die 1, the top surface of the lower die 2 is fixedly connected with a guide post 8 corresponding to and matching with the guide hole 7, the bottom surface of the lower die 2 is fixedly connected with a limit post 9, the limit post 9 is arranged on the right side of the lower end and the left side of the upper end of the lower die 2, and the limit post 9 is in contact with the upper die 1. The lower die 2 is provided with a connecting block 10, the right side surface of the connecting block 10 is provided with a vertical clamping sliding groove 11, the cross section of the clamping sliding groove 11 is T-shaped, the bottom surface of the connecting block 10 is fixedly connected with the top surface of the lower die 2, the connecting block 10 is arranged on the left side of the core rod 5, the core rod 5 is provided with a clamping sliding block 12, the cross section of the clamping sliding block 12 is T-shaped, one end of the clamping sliding block 12 is arranged in the clamping sliding groove 11, and the other end of the clamping sliding block 12 is fixedly connected with the left end of the core rod 5.
As shown in fig. 4 and 3, the top surface of the lower die 2 is provided with a front-back elongated slot 13, the elongated slot 13 is disposed between the lower punch 4 and the connecting block 10, an elastic block 14 and a plurality of springs 15 are disposed in the elongated slot 13, the springs 15 are uniformly arranged in the elongated slot 13 from front to back, two ends of each spring 15 are fixedly connected to the bottom surface of the elastic block 14 and the bottom surface of the elongated slot 13, and the top surface of the elastic block 14 is in contact with the bottom surface of the mandrel 5. A storage cavity 16 is arranged in the core rod 5, the storage cavity 16 penetrates through the right side face of the core rod 5, and the cavity is communicated with the punched hole 6. The height of the connecting block 10 is consistent with that of the limiting column 9. The card sliding groove 11 penetrates the top surface of the connection block 10.
As shown in fig. 1 and 2, the upper die 1 and the lower die 2 are both in a square shape, the lower punch 4 is installed at the center of the top surface of the lower die 2, the upper punch 3 is installed at the center of the bottom surface of the upper die 1, the upper punch 3 corresponds to the lower punch 4, the core rod 5 is placed between the upper die 1 and the lower die 2 in the left-right direction, as shown in fig. 3, the top surface and the bottom surface of the core rod 5 are both provided with a punching hole 6, the punching hole 6 corresponds to the upper punch 3 and the lower punch 4,
as shown in fig. 4 and 3, a guide post 8 is respectively installed on the upper right corner and the lower left corner of the top surface of the lower die 2, a guide hole 7 is arranged on the upper die 1 corresponding to the guide post 8, a limit post 9 is respectively installed on the upper left corner and the lower right corner of the top surface of the lower die 2, the core rod 5 is placed on the lower die 2 in the left-right direction, a clamping slide block 12 is installed at the left end of the core rod 5, the clamping slide block 12 is in a flat T shape, a connecting block 10 is installed on the top surface of the lower die 2, the connecting block 10 is arranged at the left side of the core rod 5, a clamping slide groove 11 in the up-down direction is arranged on the right side surface of the connecting block 10, the cross section of the clamping slide groove 11 is in a T shape, the groove bottom width of the clamping slide groove 11 is larger than the opening width of the clamping slide groove 11, the right end of the clamping slide block 12 is fixedly installed on the left side surface of the core rod 5, the lower die 12 is installed in the clamping slide groove 11 in a matching manner, a long groove 13 in the front-back direction is arranged on the bottom surface of the lower die 2, the long groove 13 is arranged below the core rod 5, the elastic block 14 is arranged in the long groove 13, a storage cavity 16 is arranged in the core rod 5, the storage cavity 16 is communicated with the punched hole 6, and the storage cavity 16 penetrates through the right side surface of the core rod 5.
As shown in fig. 3 and 5, the springs 15 are uniformly distributed in the elongated slot 13 from front to back, the upper end of the spring 15 is connected with the bottom of the spring block 14, and the lower end of the spring 15 is connected with the bottom surface of the elongated slot 13.
When the special-shaped pipe punching die is used, the special-shaped pipe is sleeved on the core rod 5 until the special-shaped pipe props against the elastic block 14, the upper die 1 moves downwards, the elastic block 14 is pressed back to the long groove 13 by the core rod 5 when the die is closed until the special-shaped pipe is contacted with the top surface of the lower die 2, punching 6 on the lower surface of the special-shaped pipe is completed, the upper surface of the special-shaped pipe is contacted with the bottom surface of the upper die 1, punching 6 on the upper surface of the special-shaped pipe is completed, the special-shaped pipe is punched 6 from the outside to the inside, and no burrs exist on the outer surface of the pipe.

Claims (6)

1. The utility model provides a cut-out press of mechanical tubes, characterized by, includes mould (1) and lower mould (2), the bottom surface rigid coupling of going up mould (1) has last drift (3), the rigid coupling has lower drift (4) on the top surface of lower mould (2), sliding connection has plug (5) on lower mould (2), plug (5) are left right direction and arrange in between mould (1) and lower mould (2), all be equipped with on the top surface of plug (5) and the bottom surface and punch a hole (6), it is corresponding with punch a hole (6) all to go up drift (3) and lower drift (4), be equipped with guiding hole (7) of lining up top surface and bottom surface on going up mould (1), the front end right side and the rear end left side of mould (1) are arranged in to guiding hole (7), the rigid coupling has guide post (8) corresponding and matching with guiding hole (7) on the top surface of lower mould (2), the rigid coupling has spacing post (9) on the bottom surface of lower mould (2), the lower extreme right side and the upper end left side of lower mould (2) are arranged in to spacing post (9), spacing post (9) and last mould (1) contact.
2. A special pipe punching die according to claim 1, wherein the lower die (2) is provided with a connecting block (10), a vertical clamping sliding groove (11) is formed in the right side surface of the connecting block (10), the cross section of the clamping sliding groove (11) is T-shaped, the bottom surface of the connecting block (10) is fixedly connected with the top surface of the lower die (2), the connecting block (10) is arranged on the left side of the mandrel (5), the mandrel (5) is provided with a clamping sliding block (12), the cross section of the clamping sliding block (12) is T-shaped, one end of the clamping sliding block (12) is arranged in the clamping sliding groove (11), and the other end of the clamping sliding block (12) is fixedly connected with the left end of the mandrel (5).
3. A special pipe punching die according to claim 1 or 2, wherein the top surface of the lower die (2) is provided with a front-back elongated slot (13), the elongated slot (13) is disposed between the lower punch (4) and the connecting block (10), the elongated slot (13) is internally provided with an elastic block (14) and a plurality of springs (15), the springs (15) are uniformly distributed in the elongated slot (13) from front to back, two ends of each spring (15) are respectively fixedly connected with the bottom surface of the elastic block (14) and the bottom surface of the elongated slot (13), and the top surface of the elastic block (14) is in contact with the bottom surface of the mandrel (5).
4. A tube profile punching die according to claim 3, wherein a storage chamber (16) is provided in the core rod (5), the storage chamber (16) extends through the right side surface of the core rod (5), and the chamber is communicated with the punched hole (6).
5. A profile tube punching die according to claim 2, wherein the height of the connecting block (10) is identical to the height of the limiting post (9).
6. A profile tube punching die according to claim 2, wherein the card sliding groove (11) penetrates through the top surface of the connecting block (10).
CN202120026604.9U 2021-01-06 2021-01-06 Punching die for special-shaped pipe Active CN214644256U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120026604.9U CN214644256U (en) 2021-01-06 2021-01-06 Punching die for special-shaped pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120026604.9U CN214644256U (en) 2021-01-06 2021-01-06 Punching die for special-shaped pipe

Publications (1)

Publication Number Publication Date
CN214644256U true CN214644256U (en) 2021-11-09

Family

ID=78507486

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120026604.9U Active CN214644256U (en) 2021-01-06 2021-01-06 Punching die for special-shaped pipe

Country Status (1)

Country Link
CN (1) CN214644256U (en)

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