CN203061591U

CN203061591U - Equipment for producing alloy bar with helical inner cooling hole

Info

Publication number: CN203061591U
Application number: CN 201220723703
Authority: CN
Inventors: 唐晓东
Original assignee: SUZHOU RUISEN CARBIDE CO Ltd
Current assignee: SUZHOU RUISEN CARBIDE CO Ltd
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2013-07-17
Anticipated expiration: 2022-12-25

Abstract

The utility model discloses equipment for producing an alloy bar with a helical inner cooling hole. The equipment comprises a screw extruder and an extrusion die, wherein the extrusion die comprises a bottom die, a rotary die and an inner hole core bundle bracket, wherein the bottom die is fixed on a handpiece of the screw extruder; a material feeding cavity and a forming cavity are formed inside the bottom die; the inner hole core bundle bracket is fixed between the material feeding cavity and the forming cavity; an inner hole forming core bundle is fixed on the inner hole core bundle bracket; the rotary die is arranged on the bottom die; a material discharging cavity of the rotary die and the forming cavity of the bottom die are coaxially arranged; the rotary die is driven by a stepping motor to rotate; and a plurality of axial bulges are arranged on the inner wall of the material discharging cavity of the rotary cavity. The bar can synchronously twist along with the rotation of the rotary die in the material discharging cavity of the rotary die; by arrangement of different inner hole core bundle bracket, important sizes such as a screw pitch and a hole distance of the bar with the helical inner cooling hole can be easily controlled; and therefore, the produced bar can meet a design requirement.

Description

Production has the equipment of cooling hole alloy bar material in the spiral

Technical field

The utility model relates to a kind of equipment of producing alloy bar material, particularly relates to the equipment that a kind of production has cooling hole alloy bar material in the spiral.

Background technology

In mechanical processing industry, the high-speed cutting instrument is at processing course of work medium speed height, and the heat of generation is big, need in time cool off in the working angles, prevents that too high operating temperature from making the too fast wear out failure of tool edge.The tradition sintered-carbide tool adopts outer cooling bath to carry out outer cooling, and its process velocity is slow, and precision is relatively poor and life tools are not long, also causes the waste of cooling fluid easily and splashes.Carbide alloy cutting tool with inside spin cooling hole, by add cooling fluid in inner spiral hole, in the process, cooling fluid is discharged from tool insert cooling hole, accelerates cooling velocity, therefore can improve the cutter rotating speed, improves the precision life-saving.

The utility model content

The purpose of this utility model provides the equipment that a kind of production has cooling hole alloy bar material in the spiral, makes the bar size specification of production accurately stable.

The technical solution of the utility model is such: a kind of production has the equipment of cooling hole alloy bar material in the spiral, comprise screw extruder and extrusion die, it is characterized in that: described extrusion die comprises bed die, revolving die and endoporus core bundle branch frame, described bed die is fixed in the screw extruder head, bed die inside comprises feed cavity and forming cavity, described endoporus core bundle branch frame is fixed between feed cavity and the forming cavity, on the described endoporus core bundle branch frame interior hole forming core bundle is arranged fixedly, described revolving die is arranged on the bed die, the discharging chamber of described revolving die and the coaxial setting of the forming cavity of bed die, described revolving die drives it by stepper motor and rotates, and the discharging cavity wall of described revolving die is provided with some projections in axial direction.

Preferably, the discharging cavity wall of described revolving die is provided with two projections in axial direction at least, and the height of described projection is 0.1～1.0mm.

The production of the utility model design has the equipment of cooling hole alloy bar material in the spiral, material is clamp-oned from the bed die feed cavity by screw extruder, form the bar with interior straight hole by endoporus core bundle branch frame and forming cavity, bar enters revolving die discharging chamber, the projection of discharging cavity wall embeds the bar surface, stepper motor drives the revolving die rotation simultaneously, and revolving die then reverses by bar in the projection drive discharging chamber, makes the interior straight hole in the bar reverse the formation threaded hole with bar.

The utility model provides the advantage of technical scheme to be, the interior straight hole bar of being extruded by bed die, in revolving die discharging chamber, can reverse synchronously with the rotation of revolving die, therefore, can realize producing the inside spin cooling hole bar of different pitch by the control step rotating speed of motor, cooperate the different endoporus core bundle branch frame of configuration then can must control the pitch of cooling hole bar in the spiral easily, significant dimensions such as pitch-row, guarantee that the bar of producing adheres to specification, need not be the independent extrusion die of bar design of each specification, can general bed die and revolving die, reduced production cost.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is for producing the endoporus core bundle branch shelf structure schematic diagram of cooling hole alloy bar material in the double helix;

Fig. 3 is for producing the endoporus core bundle branch shelf structure schematic diagram of cooling hole alloy bar material in the triple helical;

Fig. 4 is the revolving die structural representation.

The specific embodiment

The utility model is described in further detail below in conjunction with embodiment, but not as to restriction of the present utility model.

See also Fig. 1, production has the equipment of cooling hole alloy bar material in the spiral, comprise screw extruder 1 and extrusion die, wherein extrusion die comprises bed die 2, revolving die 3 and endoporus core bundle branch frame 4, bed die 2 inside comprise feed cavity 21 and forming cavity 22, feed cavity 21 operated by rotary motion are tapered, endoporus core bundle branch frame 4 is fixed between feed cavity 21 and the forming cavity 22, be on the interface of feed cavity 21 and forming cavity 22, interior hole forming core bundle 41 is fixedly arranged on the endoporus core bundle branch frame 4, interior hole forming core bundle 41 is generally selected the circle silk of nylon material for use, also can be according to producing needs with the nylon yarn that is changed to other cross sectional shapes.

The endoporus core bundle branch frame 4 that cooling hole alloy bar material adopts in the production double helix as shown in Figure 2, endoporus core bundle branch frame 4 middle parts arrange two wire holes 42, wire hole 42 pitch-rows are set according to the dimensional requirement of required production bar, and nylon yarn 41 penetrates the endoporus core bundle branch frame 4 that will put on silk behind the wire hole 42 and is fixed in the bed die 2.Produce the endoporus core bundle branch frame 4 that only need adopt when cooling off the hole alloy bar material in the triple helical as shown in Figure 3, therefore, only need dispose different endoporus core bundle branch framves 4 when producing the bar of different endoporus specifications, can cool off hole alloy bar material bed die 2 and revolving die 3 in the general production double helix, reduce the die sinking expense, reduced production cost.

The bed die 2 that installs endoporus core bundle branch frame 4 is fixed in screw extruder 1 head, revolving die 3 is arranged on the bed die 2, the discharging chamber 31 of revolving die 3 and the 22 coaxial settings of the forming cavity of bed die 2, as shown in Figure 4, gear shape is processed in the outer ring of revolving die 3, cooperate driving revolving die 3 to rotate the discharging chamber 31 inwall settings projection 32 in axial direction of revolving die 3 with the outer ring of revolving die 3 by stepper motor 5 output shaft assembling gears.The number of projection 32 is set according to the diameter of the moulding bar of producing 6, be generally two, the height of projection 32 can be selected 0.1～1.0mm, and the projection 32 of general 0.5mm height just can satisfy production requirement, and the discharge end 31 of revolving die 3 arranges the bearing material support 7 that collects the moulding bar.

During production, the carbide alloy material is clamp-oned from bed die 2 feed cavity 21 by screw extruder 1, form the bar 6 with interior straight hole by endoporus core bundle branch frame 4 and forming cavity 22, bar 6 enters revolving die discharging chamber 31, the projection 32 of discharging chamber 31 inwalls embeds bar 6 surfaces, stepper motor 5 drives revolving die 3 rotations simultaneously, 3 of revolving dies drive discharging chamber 31 interior bars 6 by projection 32 and reverse, make the interior straight hole in the bar 6 reverse the formation threaded hole with bar 6, bar 6 is extruded the back from the discharge end 31 of revolving die 3 and is collected by bearing material support 7.

Claims

1. a production has the equipment of cooling hole alloy bar material in the spiral, comprise screw extruder (1) and extrusion die, it is characterized in that: described extrusion die comprises bed die (2), revolving die (3) and endoporus core bundle branch frame (4), described bed die (2) is fixed in the screw extruder head, bed die (2) inside comprises feed cavity (21) and forming cavity (22), described endoporus core bundle branch frame (4) is fixed between feed cavity (21) and the forming cavity (22), described endoporus core bundle branch frame (4) is gone up fixedly interior hole forming core bundle (41), described revolving die (3) is arranged on the bed die (2), the coaxial setting of forming cavity (22) of the discharging chamber (31) of described revolving die (3) and bed die (2), described revolving die (3) drives its rotation by stepper motor (5), and discharging chamber (31) inwall of described revolving die (3) is provided with some projections (32) in axial direction.

2. production according to claim 1 has the equipment of cooling hole alloy bar material in the spiral, it is characterized in that: discharging chamber (31) inwall of described revolving die (3) is provided with two projections (32) in axial direction at least, and the height of described projection (32) is 0.1～1.0mm.