CN211413310U

CN211413310U - Adjustable hot forging valve trimming die

Info

Publication number: CN211413310U
Application number: CN201922276111.6U
Authority: CN
Inventors: 吴士庆
Original assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Current assignee: Ningbo Amico Copper Valves Manufacturing Co Ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-04
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses an adjustable hot forging valve side cut mould, belong to the mould that the blank excision overlap after the valve hot forging, its structure includes upper die, lower mould and the hot forging valve blank of taking the overlap etc., it is mainly to add a plurality of in the lower mould and distribute in the peripheral regulation inserts of hot forging valve blank, each is adjusted inserts the homoenergetic and is done the horizontal migration relatively hot forging valve blank and adjust and lock, and the horizontal migration of a plurality of regulation inserts is the hot forging valve blank of centre gripping jointly, and adjust the hot forging valve blank and lock in suitable side cut position; therefore, by designing the adjustable structure, the problems that the positions of cores of valve blanks are inconsistent in the hot forging process, defects are easily generated when the flashes are cut off and the like are solved, and the hot forging valve trimming die has the use advantages that the flashes are completely cut off, the appearance is not deformed, the trimming quality is high and the like, so that the appearance of the hot forging valve blanks is more attractive.

Description

Adjustable hot forging valve trimming die

Technical Field

The utility model relates to a valve side cut die design specifically indicates a can adjust the excision and forge hot valve side cut die utensil of straight overlap of three core orientation production of hot forging in-process.

Background

The trimming die is a processing die which cuts off the flashes on the periphery of the workpiece by utilizing the die closing action of the upper die and the lower die, so that the outline of the workpiece is flat, smooth and attractive, and the flashes are cut off by the trimming die, so that the trimming die is also beneficial to the next metal processing, assembly and the like of the workpiece. At present, the application of trimming dies at home and abroad is very wide, no matter for military use, industrial use, civil use and the like, as long as the trimming dies relate to the machinery manufacturing industry, various automobile parts, plastic parts and the like, but the trimming dies find that the trimming of hot forging blanks is easy to generate flash and can not be completely cut off in the use process of numerous fields, and simultaneously, the workpieces can generate the defects of deformation and the like, so that the quality of the blanks is unqualified, and the surface quality of the appearance of the blanks is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome valve blank core position inconsistent when the hot forging process, produce the defect easily and provide a position through adjustable hot forging valve blank when excision overlap to the overlap excision is clean, not make the appearance produce warp, cut edge a side cut die design of high quality, it enables the appearance profile of hot forging valve blank more pleasing to the eye.

The technical problem of the utility model is realized through following technical scheme:

an adjustable hot forging valve trimming die comprises an upper die, a hot forging valve blank with a flash, a lower die and a trimming through hole which is arranged in the lower die in a vertically through mode, wherein the trimming through hole is matched with the outline of the hot forging valve blank, and the hot forging valve blank is horizontally placed on a cutting edge of the trimming through hole through the flash; the upper die is closed relative to the lower die, the upper die pushes and pushes the hot forging valve blank to cut off flash through the trimming through hole, the lower die is provided with a plurality of adjusting inserts distributed on the periphery of the hot forging valve blank, each adjusting insert can perform horizontal movement adjustment and locking relative to the hot forging valve blank, and the horizontal movement of the plurality of adjusting inserts can jointly clamp the hot forging valve blank and adjust and lock the hot forging valve blank at a proper trimming position.

The three adjusting insert blocks are respectively arranged on the rear side, the left side and the right side of the hot forging valve blank.

Each adjusting insert is horizontally moved and adjusted by arranging an adjusting screw which is in threaded connection with the lower die at the rear part of each adjusting insert; the adjusting screw is screwed inwards and pushes the adjusting insert to synchronously move inwards and horizontally to abut against the hot forging valve blank, or the adjusting screw is screwed outwards and separated from the adjusting insert, and the adjusting insert moves outwards and horizontally to be separated from the hot forging valve blank.

The horizontal movement locking of each adjusting insert is that each adjusting insert is provided with a vertically through mounting hole, a locking screw connected to the lower die is arranged in the mounting hole, and the mounting hole is a straight hole extending along the horizontal movement trajectory line direction of the adjusting insert; the locking screw is screwed to press the adjusting insert and lock the adjusting insert on the lower die, or the locking screw is unscrewed to separate from the adjusting insert, and the adjusting insert performs fixed-distance horizontal movement adjustment on the lower die.

The length distance of the straight hole of the mounting hole is the fixed distance for the adjusting insert to horizontally move and adjust on the lower die.

The top surface of each adjusting insert is provided with a semicircular groove, the axis line of the semicircular groove is parallel to the horizontal moving track line of the adjusting insert, and the semicircular groove supports part of flashes of the hot forging valve blank.

The outline dimension of the cutting edge of the trimming through hole is 0.1mm larger than the outline dimension of the hot forging valve blank.

Compared with the prior art, the utility model mainly adds a plurality of adjusting inserts distributed on the periphery of the hot forging valve blank in the lower die, each adjusting insert can be adjusted and locked by horizontal movement relative to the hot forging valve blank, and the horizontal movement of the adjusting inserts can clamp the hot forging valve blank together and adjust and lock the hot forging valve blank at a proper trimming position; therefore, by designing the adjustable structure, the problems that the positions of cores of valve blanks are inconsistent in the hot forging process, defects are easily generated when the flashes are cut off and the like are solved, and the hot forging valve trimming die has the use advantages that the flashes are completely cut off, the appearance is not deformed, the trimming quality is high and the like, so that the appearance of the hot forging valve blanks is more attractive.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a top view of fig. 1 with the upper die removed.

Fig. 3 is a schematic structural view of the lower die.

Fig. 4 is a schematic view of the structure of the adjusting insert.

Fig. 5 is a top view of fig. 4.

Fig. 6 is a schematic structural view of a hot forged valve blank.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 6, 1, an upper die, 2, a lower die, 21, a trimming through hole, 3, a hot forging valve blank, 31, a flash, 4, an adjusting insert, 41, a mounting hole, 42, a semicircular groove, 5, an adjusting screw and 6, a locking screw.

An adjustable trimming die for a hot-forged valve can be used for quickly cutting off flashes 31 generated after hot forging of a valve blank, the structure of the trimming die is shown in figures 1 and 2, the trimming die mainly comprises an upper die 1, a lower die 2, a hot-forged valve blank 3 with the flashes 31 between the upper die and the lower die, and the like, and the outline shapes of the upper die 1 and the lower die 2 need to be determined according to the outline size of the hot-forged valve blank 3.

The upper die 1 is fixed on a punching machine, the lower die 2 is fixed on a workbench of the punching machine, the lower die 2 is provided with a trimming through hole 21 which is communicated up and down as shown in figure 3, the trimming through hole is matched with the outline of the hot forging valve blank 3, and the outline of the cutting edge of the trimming through hole 21 needs to be 0.1mm larger than the outline of the hot forging valve blank 3.

The hot forging valve blank 3 is horizontally placed on the cutting edge of the trimming through hole 21 through the flash 31, and the flash 31 is mainly generated by inconsistent positions of the three core surfaces of the valve blank during the hot forging process; the lower die 2 is provided with a plurality of adjusting inserts 4 distributed on the periphery of the hot forging valve blank 3, and the three adjusting inserts 4 are arranged in the embodiment and are respectively arranged on the rear side, the left side and the right side of the hot forging valve blank 3.

Each adjusting insert 4 can horizontally move, adjust and lock relative to the hot forging valve blank 3, and the specific structure is as follows: the rear part of each adjusting insert 4 is provided with an adjusting screw 5 which is in threaded connection with the lower die 2, if the adjusting screw is screwed inwards, the adjusting inserts 4 are pushed to synchronously move inwards and horizontally to abut against the hot forging valve blank 3, and then the three adjusting inserts 4 can clamp the hot forging valve blank 3 together; if the adjusting screw 5 is screwed out of the adjusting insert 4, the adjusting insert can be moved horizontally outward away from the hot forged valve blank 3, so that the placement position of the hot forged valve blank 3 can be finely adjusted. The hot forged valve blank 3 can be adjusted and locked at a proper trimming position by the operation and adjustment of the adjusting screw 5.

Meanwhile, in the horizontal movement locking of each adjusting insert 4, each adjusting insert 4 is provided with a vertically through mounting hole 41, a locking screw 6 connected to the lower die 2 is arranged in the mounting hole, and the mounting hole 41 is a straight hole extending along the horizontal movement trajectory line direction of the adjusting insert 4; therefore, when the locking screw 6 is screwed to press the adjusting insert 4, the adjusting insert can be locked on the lower die 2; when the locking screw 6 is unscrewed from the adjusting insert 4, the adjusting insert can be horizontally moved and adjusted at a fixed distance on the lower die 2, and the length distance of the straight hole of the mounting hole 41 is the fixed distance for horizontally moving and adjusting the adjusting insert 4 on the lower die 2.

In addition, each top surface of the adjusting insert 4 is provided with a semicircular groove 42 as shown in fig. 4 and 5, the axis line of the semicircular groove is parallel to the horizontal moving track line of the adjusting insert 4, and the adjusting insert 4 can support part of the flash 31 of the hot forging valve blank 3 through the semicircular groove 42.

The utility model discloses a punch press and cylinder drive and go up 1 downstream, because hot forging valve blank 3 inserts 4 through adjusting screw 5 and the common complex regulation of locking screw 6 and is fixed on the suitable position of lower mould 2, also the hot forging valve blank 3 can carry out position control in a flexible way, so go up 1 downstream and relative lower mould 2 closes up the compound die, will push up and bulldoze hot forging valve blank 3 and amputate overlap 31 through cutting edge through-hole 21, then overlap amputates clean hot forging valve blank 3 and can follow freely falling in cutting edge through-hole 21, the quality of cutting edge of hot forging valve blank can be ensured to this kind of side cut mould, the qualification rate of cutting edge is improved.

The above description is only an embodiment of the present invention, and it should be understood by those skilled in the art that any structural design equivalent to this embodiment is included in the scope of the present invention.

Claims

1. An adjustable hot forging valve trimming die comprises an upper die (1), a hot forging valve blank (3) with a flash (31), a lower die (2) and trimming through holes (21) which are vertically arranged in the lower die (2) in a penetrating manner, wherein the trimming through holes (21) are matched with the outline of the hot forging valve blank (3), and the hot forging valve blank (3) is horizontally placed on a cutting edge of the trimming through holes (21) through the flash (31); go up mould (1) relative lower mould (2) close up the compound die, should go up mould (1) push down and push away hot forging valve blank (3) and through cutting edge through-hole (21) and excision overlap (31), its characterized in that lower mould (2) on be equipped with a plurality of and distribute in the peripheral regulation of hot forging valve blank (3) and insert (4), every regulation is inserted the homoenergetic and is made horizontal migration regulation and locking relative hot forging valve blank (3), and the horizontal migration of a plurality of regulation insert (4) and centre gripping hot forging valve blank (3) jointly, and will hot forging valve blank (3) are adjusted and are locked in suitable side cut position.

2. An adjustable die for trimming hot-forged valves, as claimed in claim 1, wherein said adjusting inserts (4) are provided in three numbers and are respectively mounted on the rear, left and right sides of the hot-forged valve blank (3).

3. The adjustable hot forging valve trimming die according to claim 1, wherein each adjusting insert (4) is horizontally adjusted by arranging an adjusting screw (5) which is in threaded connection with the lower die (2) at the rear part of each adjusting insert (4); the adjusting screw is screwed inwards and pushes the adjusting insert (4) to synchronously move inwards and horizontally to abut against the hot forging valve blank (3), or the adjusting screw (5) is screwed outwards and out of the adjusting insert (4), and the adjusting insert moves outwards and horizontally to be separated from the hot forging valve blank (3).

4. The adjustable hot forging valve trimming die according to claim 1, wherein the horizontal movement locking of each adjusting insert (4) is that each adjusting insert (4) is provided with a through mounting hole (41), the mounting hole is internally provided with a locking screw (6) connected to the lower die (2), and the mounting hole (41) is a straight hole extending along the horizontal movement trajectory line direction of the adjusting insert (4); the locking screw (6) is screwed to press the adjusting insert (4) and lock the adjusting insert on the lower die (2), or the locking screw (6) is unscrewed to be separated from the adjusting insert (4), and the adjusting insert is horizontally moved and adjusted on the lower die (2) at a fixed distance.

5. The adjustable hot forging valve trimming die according to claim 4, wherein the straight hole length distance of the mounting hole (41) is a fixed distance for the horizontal movement adjustment of the adjusting insert (4) on the lower die (2).

6. An adjustable die for trimming hot forged valves as claimed in claim 4, wherein the top surface of each adjusting insert (4) is provided with a semicircular groove (42), the axis of the semicircular groove is parallel to the horizontal moving track line of the adjusting insert (4), and the semicircular groove (42) supports part of the flash (31) of the hot forged valve blank (3).

7. The adjustable die for trimming hot forged valves as claimed in claim 4, wherein the cutting edge profile of the trimming through hole (21) is 0.1mm larger than the outer profile of the hot forged valve blank (3).