CN217018417U

CN217018417U - Mould structure of stainless steel common rail pipe

Info

Publication number: CN217018417U
Application number: CN202123378338.5U
Authority: CN
Inventors: 孙文政; 姜伟
Original assignee: WUHU SANLIAN FORGING CO Ltd
Current assignee: WUHU SANLIAN FORGING CO Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-22
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a die structure of a stainless steel common rail pipe, which has the technical scheme that: the method comprises the following steps: the top surface of the bottom die is provided with a bottom pre-forging groove, the top surface of the bottom die is provided with a top die, and the bottom surface of the top die is provided with a top pre-forging groove; the inside in end preforging groove is put into to the accessible when using, accessible extrusion top mould makes top preforging groove and end preforging groove form the common rail type cavity this moment, extrusion stock forges the shaping, make the excessive part of stock extrude from the round cavity that end venthole and ejecting gas pocket formed, staff's accessible cutting off cutter cuts the separation collection to unnecessary stock of extruding this moment, avoid appearing the extrusion stock and spill over the mould clearance and lead to extravagant condition, when needs cut the separation collection to unnecessary part stock, the staff accessible is pressed the stopper, make the spring shrink drive cutting off cutter cut off unnecessary stock, the extension of accessible spring drives the cutting off cutter and resets after the completion, subsequent use of being convenient for, increase the convenience.

Description

Die structure of stainless steel common rail pipe

Technical Field

The utility model relates to the technical field of forging, in particular to a die structure of a stainless steel common rail pipe.

Background

According to the application number: CN201922298082.3, a forging die for high-pressure common rail pipes, comprises an upper die plate and a lower die plate, wherein a mother plate and a male plate are distributed on the central positions of the upper surfaces of the lower die plate and the upper die plate, grooves matched with the high-pressure common rail pipes are formed in the central positions of the upper surfaces of the mother plate and the male plate, positioning pins are symmetrically distributed and fixedly installed on the upper surface of the mother plate, a variable frequency hydraulic machine and a cone mount are respectively and fixedly installed on one side of the upper surface of the lower die plate, ejector rods penetrating through the cone mount are uniformly distributed and fixedly installed on the output end of the variable frequency hydraulic machine, and a cone matched with an oil injection hole on the high-pressure common rail pipe is fixedly installed at one end of each ejector rod. The utility model has novel structure, simple operation and high practicability; another example is application No.: CN201520610922.4 discloses a forging die for a high-pressure common rail pipe, which includes an upper forging die and a lower forging die, wherein the upper forging die is provided with a first pre-forging cavity and a first finish-forging cavity; a second pre-forging cavity and a second finish forging cavity are arranged on the forging lower die, and the first pre-forging cavity and the second pre-forging cavity form a pre-forging profile model of the high-pressure common rail pipe; and the first precision forging cavity and the second precision forging cavity form a precision forging outline model of the high-pressure common rail pipe. By adopting the scheme, the strength and the service life of the die are obviously improved; the utilization rate of die materials and the utilization rate of forging materials are obviously improved, and the material cost and the processing cost of the die are reduced; the parts are filled fully, and defective products are reduced. The die has high positioning precision and is convenient to install and disassemble.

However, the forging dies for the two high-pressure common rail pipes still have some disadvantages, such as: when a blank is processed, the situation that the extrusion blank overflows a die gap to cause waste is easy to occur, so that the overall economic benefit of a product is poor, and in order to solve the problems, the die structure of the stainless steel common rail tube is provided.

SUMMERY OF THE UTILITY MODEL

In view of the problems mentioned in the background art, the present invention aims to provide a mold structure for a stainless steel common rail pipe, so as to solve the problems mentioned in the background art.

The technical purpose of the utility model is realized by the following technical scheme:

a mold structure for a stainless steel common rail pipe, comprising: the top surface of the bottom die is provided with a bottom pre-forging groove, the top surface of the bottom die is provided with a top die, and the bottom surface of the top die is provided with a top pre-forging groove; a blank cut-off assembly disposed on one side of the top die for cutting off blanks after blank making, the blank cut-off assembly comprising: the bottom air outlet is formed in the top surface of the bottom die, the bottom surface of the top die is provided with an ejection air hole, one side of the top die is fixedly provided with an instrument block, one side of the instrument block is provided with a connecting hole, the connecting hole is communicated with the ejection air hole, the top surface of the instrument block is provided with a movable hole, and the inside of the movable hole is movably clamped with a cutting-off tool.

Through adopting above-mentioned technical scheme, through setting up end preforging groove, the inside in end preforging groove is put into with the stock when using to the accessible, accessible extrusion top mould makes top preforging groove and end preforging groove form the common rail type cavity this moment, extrusion stock forges the shaping, make the unnecessary part of stock can be extruded from end venthole and the round cavity that ejecting gas pocket formed, staff's accessible cutting off cutter cuts the separation collection to unnecessary stock of extruding this moment, avoid appearing the extrusion stock and spill over the mould clearance and lead to the extravagant condition.

Preferably, the blank cutting assembly further comprises: the stopper, stopper fixed mounting be in the top surface of cutting-off cutter, the appearance tank has all been seted up to the top surface four corners position of instrument piece, the inside fixed mounting of appearance tank has the spring, the top of spring with stopper fixed connection is in the same place.

Through adopting above-mentioned technical scheme, through setting up the spring, when needs cut the separation to unnecessary part stock and collect, the stopper is pressed to the staff's accessible, makes the spring shrink drive the cutting off cutter and cuts off unnecessary stock, and the extension of accessible spring drives the cutting off cutter after the completion and resets, and subsequent use of being convenient for increases the convenience.

Preferably, the four corners of the bottom die are fixedly provided with limiting columns, the top surface of the top die is provided with a plurality of limiting holes, and the limiting columns are movably sleeved on the inner circular wall surfaces of the limiting holes.

By adopting the technical scheme, the limiting columns are arranged for limiting the positions of the bottom die and the top die, so that the situation that the positions of the top preforging groove and the bottom preforging groove deviate to cause forging failure is avoided.

Preferably, the left side and the right side of the bottom die are respectively and fixedly provided with an instrument box, the top surface of the instrument box is provided with a top groove, the inside of the top groove is fixedly sleeved with a micro cylinder, and the left side and the right side of the top die are respectively and fixedly provided with a top block.

By adopting the technical scheme, the micro cylinder is arranged, so that the top die can be ejected by opening the micro cylinder after forging is finished, the top die is separated from the bottom die, and die sticking is avoided.

Preferably, the inner circle wall surface of the limiting hole is fixedly sleeved with an oilless bearing, and the oilless bearing is movably sleeved with the limiting column.

Through adopting above-mentioned technical scheme, through setting up oilless bearing for increase the smooth nature when top mould reciprocates, make the removal of top mould more stable.

Preferably, a fixing plate is fixedly mounted on the bottom surface of the bottom die.

Through adopting above-mentioned technical scheme, through setting up the fixed plate for fixed die block provides the holding power for miniature cylinder backs down the top mould.

Preferably, the top end outer circle wall surface of the limiting column is provided with threads, and the thread wall surface of the limiting column is in threaded connection with a bolt.

Through adopting above-mentioned technical scheme, through setting up the bolt for the removal of restriction spacing post avoids top mould and die block to separate completely.

In summary, the utility model mainly has the following beneficial effects:

through setting up end preforging groove, the accessible is put into the inside in end preforging groove with the stock when using, accessible extrusion top mould makes top preforging groove and end preforging groove form common rail type cavity this moment, extrusion stock forges the shaping, make the unnecessary part of stock can be extruded from the round cavity that end venthole and ejecting gas pocket formed, staff's accessible cut-off knife cuts the separation and collects unnecessary stock of extruding this moment, avoid appearing the extrusion stock and spill over the mould clearance and lead to extravagant condition, through setting up the spring, when needs cut the separation and collect unnecessary part stock, the staff accessible presses the stopper, make the spring shrink drive the cut-off knife and cut off unnecessary stock, the extension of accessible spring drives the reset of cut-off knife after the completion, be convenient for subsequent use, increase the convenience.

Through setting up spacing post, a position for spacing die block and top mould, avoid the top preforging groove to take place the skew with the position in end preforging groove, and lead to forging the failure, through setting up micro cylinder, the accessible is opened micro cylinder when forging finishes and backs down the mould, make its and die block separation, avoid appearing the phenomenon of sticking the mould, through setting up oilless bearing, a gliding nature when being used for increasing the top mould and reciprocating, make the removal of top mould more stable, through setting up the fixed plate, a fixed die block, it provides the holding power for micro cylinder backs down the top mould, through setting up the bolt, a removal for limiting spacing post, avoid top mould and die block complete separation.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of the top mold of the present invention;

FIG. 3 is a schematic view of the instrument block of the present invention;

fig. 4 is a schematic view of the instrument case of the present invention.

Reference numerals: 1. bottom die; 2. a bottom pre-forging groove; 3. carrying out top die; 4. upsetting a pre-forging groove; 5. a bottom vent hole; 6. ejecting air holes; 7. an instrument block; 8. connecting holes; 9. a movable hole; 10. a cutting knife; 11. a limiting block; 12. an instrument slot; 13. a spring; 14. a limiting post; 15. a limiting hole; 16. an instrument box; 17. a top groove; 18. a micro cylinder; 19. a top block; 20. an oilless bearing; 21. a fixing plate; 22. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2 and 3, a mold structure of a stainless steel common rail pipe includes: die block 1, die block 1's top surface is seted up the preforging groove 2 that has a bottom, and die block 1's top surface is provided with top mould 3, and top preforging groove 4 has been seted up to top mould 3's bottom surface, and one side of top mould 3 is provided with the blank and cuts off the subassembly for cut off the blank after the blanking, the blank cuts off the subassembly and includes: the bottom die comprises a bottom air outlet 5, the bottom air outlet 5 is formed in the top surface of a bottom die 1, an ejection air hole 6 is formed in the bottom surface of a top die 3, an instrument block 7 is fixedly mounted on one side of the top die 3, a connecting hole 8 is formed in one side of the instrument block 7, the connecting hole 8 is communicated with the ejection air hole 6, a movable hole 9 is formed in the top surface of the instrument block 7, a cutting knife 10 is movably clamped inside the movable hole 9, through the arrangement of a bottom pre-forging groove 2, a blank can be placed into the bottom pre-forging groove 2 when the top die 3 is extruded, the top pre-forging groove 4 and the bottom pre-forging groove 2 form a common rail type cavity, the extruded blank is forged and formed, the excessive part of the blank can be extruded from a circular cavity formed by the bottom air outlet 5 and the ejection air hole 6, and at the moment, a worker can cut, separate and collect the excessive extruded blank through the cutting knife 10, and avoid the waste caused by the overflow of a die gap of the extruded blank, the blank severing assembly further comprises: stopper 11, stopper 11 fixed mounting is at the top surface of cutting off cutter 10, instrument tank 12 has all been seted up to the top surface four corners position of instrument piece 7, the inside fixed mounting of instrument tank 12 has spring 13, spring 13's top and stopper 11 fixed connection are in the same place, through setting up spring 13, when needs cut the separation to unnecessary part stock and collect, staff's accessible presses stopper 11, make spring 13 shrink and drive cutting off cutter 10 and cut off unnecessary stock, the extension of accessible spring 13 after the completion drives cutting off cutter 10 and resets, subsequent use of being convenient for, increase the convenience.

Refer to 1 and fig. 2 and fig. 4, the equal fixed mounting in four corners position of die block 1 has spacing post 14, the spacing hole 15 of a plurality of has been seted up to the top surface of top mould 3, spacing post 14 activity cup joints at the interior round wall of spacing hole 15, through setting up spacing post 14, a position for spacing die block 1 and top mould 3, avoid top pre-forging groove 4 to take place the skew with the position in end pre-forging groove 2, and lead to forging failure, the left and right sides of die block 1 respectively fixed mounting has instrument box 16, top groove 17 has been seted up to the top surface of instrument box 16, the fixed micro cylinder 18 that has cup jointed in the inside of top groove 17, the left and right sides of top mould 3 respectively fixed mounting kicking block 19, through setting up micro cylinder 18, open micro cylinder 18 and push away top mould 3 when forging the back completion, make it separate with die block 1, the phenomenon of avoiding appearing gluing the mould.

Referring to fig. 1 and 2, the fixed oilless bearing 20 that has cup jointed of interior circle wall in spacing hole 15, oilless bearing 20 cup joints together with spacing post 14 activity, through setting up oilless bearing 20, a smooth nature when being used for increasing top mould 3 and reciprocating, make the removal of top mould 3 more stable, the bottom surface fixed mounting of die block 1 has fixed plate 21, through setting up fixed plate 21, a fixed die block 1, it provides the holding power to open top mould 3 for miniature cylinder 18 backs down, the top excircle wall of spacing post 14 is seted up threadedly, the threaded wall threaded connection of spacing post 14 has bolt 22, through setting up bolt 22, a removal for limiting spacing post 14, avoid top mould 3 and die block 1 to separate completely.

The working principle is as follows: referring to fig. 1, 2, 3 and 4, when in use, a blank can be placed into the bottom pre-forging groove 2, at this time, the top pre-forging groove 4 and the bottom pre-forging groove 2 can form a common-rail cavity by extruding the top die 3, the extruded blank is forged and formed, so that the excess part of the blank can be extruded from a circular cavity formed by the bottom air outlet 5 and the ejection air outlet 6, at this time, a worker can cut, separate and collect the excess extruded blank by the cutting knife 10, thereby avoiding the waste caused by the extrusion blank overflowing the die gap, by arranging the spring 13, when the excess part of the blank needs to be cut, separated and collected, the worker can contract the spring 13 to drive the cutting knife 10 to cut off the excess blank, and after the excess blank is cut off, the cutting knife 10 can be driven to reset by the extension of the spring 13, thereby facilitating subsequent use and increasing convenience.

Through setting up micro cylinder 18, the accessible opens micro cylinder 18 and backs down top mould 3 after forging finishes, makes its and die block 1 separation, avoids appearing the phenomenon of gluing the mould, through setting up oilless bearing 20 for increase the smoothness when top mould 3 reciprocates, make top mould 3's removal more stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mould structure of stainless steel common rail pipe which characterized in that includes:

the top surface of the bottom die (1) is provided with a bottom pre-forging groove (2), the top surface of the bottom die (1) is provided with a top die (3), and the bottom surface of the top die (3) is provided with a top pre-forging groove (4);

a blank cutting assembly disposed on one side of the top die (3) for cutting a blank after blank making, the blank cutting assembly comprising: end venthole (5), set up in end venthole (5) the top surface of die block (1), ejecting gas pocket (6) have been seted up to the bottom surface of top mould (3), one side fixed mounting of top mould (3) has instrument piece (7), connecting hole (8) have been seted up to one side of instrument piece (7), connecting hole (8) with ejecting gas pocket (6) are linked together, movable hole (9) have been seted up to the top surface of instrument piece (7), the inside activity joint of movable hole (9) has cutting off cutter (10).

2. The die structure of a stainless steel common rail pipe according to claim 1, wherein the billet severing assembly further comprises:

stopper (11), stopper (11) fixed mounting be in the top surface of cutting off cutter (10), instrument groove (12) have all been seted up to the top surface four corners position of instrument piece (7), the inside fixed mounting of instrument groove (12) has spring (13), the top of spring (13) with stopper (11) fixed connection is in the same place.

3. The mold structure for the stainless steel common rail pipe according to claim 1, wherein limiting columns (14) are fixedly mounted at four corners of the bottom mold (1), a plurality of limiting holes (15) are formed in the top surface of the top mold (3), and the limiting columns (14) are movably sleeved on inner circular wall surfaces of the limiting holes (15).

4. The mold structure for the stainless steel common rail pipe according to claim 1, wherein an instrument box (16) is fixedly mounted on each of the left side and the right side of the bottom mold (1), a top groove (17) is formed in the top surface of the instrument box (16), a micro cylinder (18) is fixedly sleeved in the top groove (17), and a top block (19) is fixedly mounted on each of the left side and the right side of the top mold (3).

5. The mold structure of the stainless steel common rail pipe according to claim 3, wherein an oilless bearing (20) is fixedly sleeved on the inner circular wall surface of the limiting hole (15), and the oilless bearing (20) is movably sleeved with the limiting column (14).

6. The die structure of the stainless steel common rail pipe according to claim 1, wherein a fixing plate (21) is fixedly installed on the bottom surface of the bottom die (1).

7. The die structure of the stainless steel common rail pipe according to claim 3, wherein the top end outer circle wall surface of the limiting column (14) is provided with threads, and the thread wall surface of the limiting column (14) is in threaded connection with a bolt (22).