CN211330943U

CN211330943U - Three-way punching die for round pipe

Info

Publication number: CN211330943U
Application number: CN201922060793.7U
Authority: CN
Inventors: 唐钟海
Original assignee: Zhangjiagang Liwan Precision Parts Co ltd
Current assignee: Zhangjiagang Liwan Precision Parts Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-08-25
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a three-dimensional cut-out press for on pipe, include: go up mould, lower mould, be provided with cylindrical mold core on the lower mould, be provided with the first punching a hole on the last lateral wall of mold core, be provided with the second that transversely runs through the lateral wall about the mold core on the mold core and punch a hole, be fixed with a punch holder respectively in the left and right sides of lower mould, the punch holder includes: the mold comprises a box body, wherein a vertical plate is arranged in the box body, a first punch and a spring are arranged on one side wall of the vertical plate facing a mold core, the first punch extends out of the box body, a push rod extending out of the box body is arranged on the other side wall of the vertical plate, and a guide inclined plane is arranged at the end part of the push rod extending out of the box body; the second punch matched with the first punch is arranged on the upper die, the left side and the right side of the upper die are respectively provided with a push plate with an inclined plane, and the inclined plane of the push plate is abutted against the guide inclined plane of the guide column. The utility model has the advantages that: simple structure, high punching efficiency and high processing precision.

Description

Three-way punching die for round pipe

Technical Field

The utility model relates to a mould especially relates to a three-dimensional cut-out press for on pipe.

Background

In order to connect the pipe fittings, a positioning slot hole and two connecting holes need to be processed on the pipe wall of each pipe fitting, then one pipe fitting is inserted into the other pipe fitting, the two connecting holes on the two pipe fittings are aligned one by one after the positioning is carried out through the positioning slot holes on the two pipe fittings, and then the connecting piece penetrates through the aligned connecting holes to connect the two pipe fittings. In the past, a positioning slotted hole is punched by a die, and then two connecting holes are punched respectively according to the positioning slotted hole as a reference point, so that the machining mode is low in efficiency, low in machining precision and even easy to miss machining.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three-dimensional cut-out press on being used for pipe that efficiency of punching a hole is high, and machining precision is high.

In order to achieve the above object, the utility model adopts the following technical scheme: a three-way punch die for use on a round tube, comprising: go up mould, lower mould, be provided with the mould core seat on the lower mould, the level is provided with cylindrical mold core on the mould core seat, and the front end of mold core outwards stretches out in the mould core seat, and the vertical first punching a hole that is provided with on the last lateral wall of mold core is provided with the second that transversely runs through the lateral wall about the mold core and punches a hole on the mold core, is fixed with a punch holder respectively on the lower mould that lies in the mold core left and right sides, the punch holder includes: the box body is internally provided with a vertical plate capable of sliding left and right in the box body, a first punch and a spring are arranged on one side wall of the vertical plate facing the mold core, the first punch extends out of the box body towards the mold core, the first punch is aligned with the second punch, the cross section of the first punch is the same as that of the second punch, the spring abuts against the box body, the other side wall of the vertical plate is provided with a push rod, the push rod extends out of the box body towards the opposite direction of the mold core, and a guide inclined plane is arranged at the end part of the push rod extending out of the box body; and a second punch aligned with the first punch is downwards arranged on the upper die, the section shape of the second punch is the same as that of the first punch, a push plate with an inclined plane is downwards arranged on the upper die positioned at the left side and the right side of the second punch respectively, and the inclined plane of the push plate abuts against the guide inclined plane of the push rod positioned at the same side of the push plate.

Further, the three-way punching die for the round pipe is characterized in that a conical guide part is arranged at the front end part of the die core.

Further, the three-way punching die for the round pipe is characterized in that the first punch longitudinally penetrates through the upper side wall and the lower side wall of the die core.

Further, the three-way punching die for the circular tube is characterized in that the die core is provided with a rectangular blanking hole which is communicated with the second punched hole and longitudinally penetrates through the upper side wall and the lower side wall of the die core.

Further, the three-way punching die for the circular tube is characterized in that the die core seat is provided with two positioning holes, the upper die is provided with two positioning pins downwards, and the two positioning holes are respectively aligned with the two positioning pins one by one.

Further, in the three-way punching die for the round pipe, four blind holes are formed in one side wall, facing the die core, of the vertical plate, and a spring is placed in each blind hole; two push rods in the same horizontal position are fixedly arranged on the other side wall of the vertical plate.

Furthermore, the three-way punching die for the circular tube is characterized in that the left side and the right side of the upper die are respectively provided with a guide sleeve, the left side and the right side of the lower die are respectively provided with a guide post, and the two guide sleeves on the upper die are respectively sleeved on the two guide posts on the lower die.

Further, a three-dimensional cut-out press for on pipe, wherein, be provided with a fixing base respectively in the left and right sides of lower mould, set up decurrent screw hole at the top of fixing base, be connected with stop screw in the screw hole.

Further, the three-way punching die for the circular pipe is characterized in that a die handle capable of being connected with a hydraulic machine is arranged at the top of the upper die.

The utility model has the advantages that: simple structure, convenient operation has not only improved punching efficiency greatly but also has improved the machining precision.

Drawings

Fig. 1 is a schematic perspective view of a three-way punching die for a round pipe according to the present invention.

Fig. 2 is a schematic structural view of a three-way punching die for a round pipe according to the present invention.

Fig. 3 is a schematic top view of the lower mold of fig. 2.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a three-way punching die for round tube, include: the die comprises an upper die 1 and a lower die 2, a die core seat 3 is arranged on the lower die 2, two positioning holes 31 are formed in the die core seat 3, a cylindrical die core 32 is horizontally arranged on the die core seat 3, the front end of the die core 32 extends forwards out of the die core seat 3, a conical guide part is arranged at the front end part of the die core 32 so as to facilitate sleeving of pipe fittings, a first punched hole 321 is formed in the upper side wall of the die core 32, the first punched hole 321 vertically penetrates through the upper side wall and the lower side wall of the die core 32, a second punched hole 322 transversely penetrating through the left side wall and the right side wall of the die core 32 is arranged on the die core 32, and a rectangular blanking hole 323 communicating the second punched hole 322 and longitudinally penetrating through the. A punch holder is fixed to each of the lower dies 2 located on the left and right sides of the die core 32, and the punch holder includes: a box body 4, a vertical plate 41 which can slide left and right in the box body 4 is arranged in the box body 4, a first punch 42 is fixedly arranged on one side wall of the vertical plate 41 facing to the mold core 32, the first punch 42 extends out of the box body 4 towards the mold core 32, the first punch 42 is aligned with the second punch 322, the cross section shape of the first punch 42 is the same as that of the second punch 322, four blind holes are also arranged on the side wall, a spring 43 is respectively arranged in each blind hole, the four springs 43 are respectively propped against the box body 4, two push rods 44 which are positioned at the same horizontal plane position are fixedly arranged on the other side wall of the vertical plate 41, the push rods 44 extend out of the box body 4 towards the direction of the mold core 32, a guide inclined plane is arranged on the end of the push rod 44 extending out of the box body 4, a fixed seat 21 is respectively arranged on the left side and the right side of the lower, the top of the fixed seat 21 is provided with a downward threaded hole, a limit screw 22 is connected in the threaded hole, and the left side and the right side of the lower die 2 are respectively provided with a guide post 23.

A second punch 11 and two positioning pins 12 are arranged downwards on the upper die 1, the second punch 11 is aligned with the first punched hole 321, the cross-sectional shape of the second punch 11 is the same as that of the first punched hole 321, and after the second punch 11 is matched with the first punched hole 321 to punch a pipe, residues punched from the pipe fall outwards through the first punched hole 321. The two positioning pins 12 are respectively aligned with the two positioning holes 31 on the mold core base 3, the upper mold 1 located on the left and right sides of the second punch 11 is respectively provided with a push plate 13 with an inclined surface downwards, the inclined surface of the push plate 13 abuts against the guiding inclined surface of the push rod 44 located on the same side with the push plate 13, the guiding inclined surface on the push rod 44 can slide along the inclined surface on the push plate 13, when the push plate 13 moves downwards, the push plate 13 can push the push rod 44 by extruding the guiding inclined surface on the push rod 44, the push rod 44 can drive the vertical plate 41 and the first punch 42 to move towards the mold core 32 against the elastic force of the spring 43, when the push plate 13 moves upwards, the extrusion force exerted on the push rod 44 by the push plate 13 is gradually reduced, and the vertical plate 41 drives the first punch 42 and the push rod 44. The left side and the right side of the upper die 1 are respectively provided with a guide sleeve 14, the two guide sleeves 14 are respectively sleeved on the two guide posts 23 on the lower die 2, so that the upper die 1 can be limited, the upper die 1 is not easy to shift in the up-and-down movement process, and the top of the upper die 1 is provided with a die handle 15 which can be connected with a hydraulic machine.

The working process of the three-way punching die for the round pipe with the structure is as follows: fixing an upper die 1 and a lower die 2 on a hydraulic machine, adjusting the distance between a limit screw 22 and the upper die 1 according to the outer diameter of a pipe to be processed, so as to control the stroke of the downward movement of the upper die 1, then sleeving the pipe to be processed on a die core 32, driving the upper die 1 to move downward along a guide column 23 by the hydraulic machine, moving a second punch 11, a positioning pin 12 and a push plate 13 on the upper die 1 toward the lower die 2 together, in the process, the positioning pin 12 extends into a positioning hole 31 to further limit the upper die 1, moving the second punch 11 downward to abut against the upper side wall of the pipe to be processed, meanwhile, pushing two vertical plates 41 by the two push plates 13 through extruding respective corresponding push rods 44, enabling the two vertical plates 41 to drive the respective corresponding first punches 42 to respectively overcome the elasticity of the respective corresponding springs 42 to move toward the die core 32, and simultaneously abutting against the left and right side walls of the pipe to be processed with the second punches 11, the upper die 1 continues to move downwards, at this time, the two first punches 42 and the second punch 11 simultaneously punch three side walls of the pipe to be processed, residues punched by the two first punches 42 fall outwards from the rectangular blanking hole 323, and residues punched by the second punch 11 fall outwards from the first punched hole 321. After punching, the hydraulic press drives the upper die 1 to move upwards along the guide post 23, the second punch 11, the positioning pin 12 and the push plate 13 move upwards together to leave the lower die 2, meanwhile, the extrusion force of the push plate 13 on the push rod 44 is gradually reduced, the vertical plate 41 drives the first punch 42 and the push rod 44 to reset in the opposite direction of the die core 32 under the action of the elastic force of the spring 42, and a worker takes a punched pipe off the die core 32. The three-way punching die for the round pipe is simple in structure and convenient to operate, and not only is punching efficiency greatly improved, but also machining precision is improved.

Claims

1. A three-way punch die for use on a round tube, comprising: go up mould, lower mould, its characterized in that: be provided with the mould core seat on the lower mould, the level is provided with cylindrical mold core on the mould core seat, and the front end of mold core stretches out in the mould core seat forward, and the vertical first punching a hole that is provided with on the last lateral wall of mold core is provided with the second that transversely runs through the lateral wall about the mold core and punches a hole on the mold core, is fixed with a punch holder respectively on the lower mould that lies in the mold core left and right sides, the punch holder includes: the box body is internally provided with a vertical plate capable of sliding left and right in the box body, a first punch and a spring are arranged on one side wall of the vertical plate facing the mold core, the first punch extends out of the box body towards the mold core, the first punch is aligned with the second punch, the cross section of the first punch is the same as that of the second punch, the spring abuts against the box body, the other side wall of the vertical plate is provided with a push rod, the push rod extends out of the box body towards the opposite direction of the mold core, and a guide inclined plane is arranged at the end part of the push rod extending out of the box body; and a second punch aligned with the first punch is downwards arranged on the upper die, the section shape of the second punch is the same as that of the first punch, a push plate with an inclined plane is downwards arranged on the upper die positioned at the left side and the right side of the second punch respectively, and the inclined plane of the push plate abuts against the guide inclined plane of the push rod positioned at the same side of the push plate.

2. A three-way hole punch for round tubes as claimed in claim 1, wherein: the front end part of the mold core is provided with a conical guide part.

3. A three-way hole punch for round tubes as claimed in claim 1, wherein: the first punched holes longitudinally penetrate through the upper side wall and the lower side wall of the mold core.

4. A three-way hole punch for round tubes as claimed in claim 1, wherein: and the mold core is provided with a rectangular blanking hole which is communicated with the second punched hole and longitudinally penetrates through the upper side wall and the lower side wall of the mold core.

5. A three-way hole-punching die for round tubes according to claim 1, 2, 3 or 4, wherein: the die core seat is provided with two positioning holes, the upper die is provided with two positioning pins downwards, and the two positioning holes are respectively aligned with the two positioning pins one by one.

6. A three-way hole-punching die for round tubes according to claim 1, 2, 3 or 4, wherein: four blind holes are formed in one side wall, facing the mold core, of the vertical plate, and a spring is placed in each blind hole; two push rods in the same horizontal position are fixedly arranged on the other side wall of the vertical plate.

7. A three-way hole-punching die for round tubes according to claim 1, 2, 3 or 4, wherein: the left side and the right side of the upper die are respectively provided with a guide sleeve, the left side and the right side of the lower die are respectively provided with a guide column, and the two guide sleeves on the upper die are respectively sleeved on the two guide columns on the lower die.

8. A three-way hole-punching die for round tubes according to claim 1, 2, 3 or 4, wherein: the left side and the right side of the lower die are respectively provided with a fixed seat, the top of each fixed seat is provided with a downward threaded hole, and a limit screw is connected in each threaded hole.

9. A three-way hole-punching die for round tubes according to claim 1, 2, 3 or 4, wherein: and the top of the upper die is provided with a die handle which can be connected with a hydraulic press.