CN202411315U

CN202411315U - Molding bed drawing out device for partial drawing out of axisymmetric structure bar stocks

Info

Publication number: CN202411315U
Application number: CN2011205726384U
Authority: CN
Inventors: 郑苏; 匡逸强; 徐大懋; 姚恒烨
Original assignee: Wuxi Turbine Blade Co Ltd
Current assignee: Wuxi Turbine Blade Co Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-09-05
Anticipated expiration: 2021-12-31

Abstract

The utility model provides a molding bed drawing out device for partial drawing out of axisymmetric structure bar stocks and can solve the problems of poor accuracy, lack of guarantee of size of bar stocks and poor quality of bar stock surfaces of the partial drawing out process of free forging of the axisymmetric structure bar stocks. The molding bed drawing out device for partial drawing out of the axisymmetric structure bar stocks comprises an upper molding bed and a lower molding bed which are both provided with handles. The molding bed drawing out device for partial drawing out of the axisymmetric structure bar stocks is characterized in that structurally symmetrical arc-shaped grooves are arranged on the upper molding bed and the lower molding bed, the bottom chord width of the arc-shaped grooves is the diameter of a bar stock to be processed, the arc height of the arc-shaped grooves is the section radius of the bar stock to be processed after partial drawing out, and connecting end surfaces of the arc-shaped grooves with the upper molding bed or the lower molding bed are in an arc transition.

Description

A kind of loose tool pulling device that is used for the local pulling of axially symmetric structure bar

Technical field

The utility model relates to loose tool and forges the base technical field, is specially a kind of loose tool pulling device of axially symmetric structure blank.

Background technology

Loose tooling forging is the forming method of a kind of outbalance in the FMT since the mould of loose tooling forging simple, be easy to make, and the loose tooling forging technological flexibility is strong, so has obtained in the base process of loose tooling forging before die forging using widely.The pulling of general axis symmetrical structure bar adopts the mode of open die forging to carry out more; Its shortcoming is that its machining accuracy is poor; Bar open die forging pulling back size does not reach requirement, and the bar surface quality is poor, and particularly the part for bar pulls out; Its size at the switching transition position of different-diameter is difficult to control, and switching place surface quality is poorer.

Summary of the invention

To the problems referred to above; The utility model provides a kind of loose tool pulling device that is used for the local pulling of axially symmetric structure bar, and it can solve the local pulling of present axially symmetric structure bar open die forging pulling technology and have that low precision, bar size can not get guaranteeing, the problem of bar surface quality difference.

Its technical scheme is such; It comprises loose tool and following loose tool; The said loose tool of going up all is equipped with handle with following fetal membrane, it is characterized in that: said upward fetal membrane and following fetal membrane have the deep-slotted chip breaker of symmetrical configuration, and the bottom string of said deep-slotted chip breaker is wide to be bar diameter to be processed; The camber of said deep-slotted chip breaker is the section radius after the local pulling of bar to be processed, said deep-slotted chip breaker with said go up loose tool or said under loose tool respectively be connected the end face arc transition.

It is further characterized in that: said arc transition circular arc and the former side face of bar to be processed and the design transition circular arc between the side face of local pulling back consistent; The said handle vertical fixing that goes up loose tool is in the said right-hand member lateral wall of going up loose tool, and the handle of said loose tool down is axially fixed at the said left end lateral wall of loose tool down along bar to be processed.

Adopt the loose tool pulling device of the utility model that the axially symmetric structure bar is carried out the part pulling; Its beneficial effect is: it adopts the form of loose tooling forging to carry out the part pulling of axially symmetric structure bar; Wherein go up the deep-slotted chip breaker that loose tool and following loose tool have symmetrical configuration; The bottom string of deep-slotted chip breaker is wide to be the section radius of the camber of bar diameter to be processed and deep-slotted chip breaker for local pulling back bar; It can guarantee that the local pulling of bar back billet size is consistent and reach designing requirement, and can guarantee the blank surface quality; And deep-slotted chip breaker with said go up loose tool or said loose tool down respectively to connect after end face arc transition and this transition arc and the former side face of bar to be processed and local the pulling design transition circular arc between the side face consistent; Can guarantee after the local pulling of bar the only surface smoothing of diameter switching transition position, further improve the surface quality of blank; The handle of last loose tool and following loose tool is installed on both sides respectively, erect-position during handled easily person's operation and enough operating spaces.

Description of drawings

A kind of loose tool pulling apparatus structure sketch map that is used for the local pulling of axially symmetric structure bar of Fig. 1 the utility model;

Fig. 2 is an axial symmetry bar structural representation to be processed;

Fig. 3 is a local pulling processing back blank structure sketch map;

Fig. 4 goes up loose tool and following loose tool master TV structure sketch map in the utility model;

Fig. 5 is the plan structure sketch map of following loose tool among Fig. 4;

Fig. 6 is the side-looking structural representation of Fig. 4;

Fig. 7 carries out the original state sketch map of the local pulling operation of axle construction bar for adopting the utility model device;

Fig. 8 carries out the local pulling operation of axle construction bar back view for adopting the utility model device.

The specific embodiment

See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6; The utility model device comprises loose tool 1 and following loose tool 2; Last loose tool 12 is equipped with handle 3,4 respectively with following fetal membrane; Last fetal membrane 1 and following fetal membrane 2 have the deep-slotted chip breaker 5 of symmetrical configuration, and the bottom string of deep-slotted chip breaker 5 is wide to be bar diameter D to be processed, and the camber of deep-slotted chip breaker 5 is the section radius H after the local pulling of bar to be processed; Deep-slotted chip breaker 5 and last loose tool or down loose tool respectively be connected the end face arc transition, arc transition circular arc R ' with the former side face of bar to be processed and local the pulling after design transition circular arc R between the side face consistent; Handle 3 vertical fixing of last loose tool are in the right-hand member lateral wall of last loose tool 1, and the handle 4 of following loose tool is axially fixed at the left end lateral wall of loose tool 2 down along bar to be processed.Among Fig. 2, L is an axial symmetry bar length to be processed,

When using this device that the axially symmetric structure bar is carried out part pulling operation; See Fig. 7 and Fig. 8, will descend loose tool to be positioned on the pneumatic hammer anvil block, axially symmetric structure bar to be processed is clipped in the deep-slotted chip breaker 5 of loose tool 1 and following loose tool 2; Loose tool 1 in the pneumatic hammer hammering then; Side hammer hits limit rotation bar, till last loose tool 1 leans on 2 dozens of following loose tools, promptly accomplishes local pulling moulding.When adopting the utility model device that the axially symmetric structure bar is pulled out operation, can adopt equipment such as pneumatic hammer, electric liquid hammer and high energy rate forging hammer; Among Fig. 7,6 for treating the axially symmetric structure bar of local pulling; Among Fig. 8,7 for adopting the axial symmetry blank after the utility model device carries out local pulling.

Claims

1. a loose tool that is used for the local pulling of axially symmetric structure bar pulls out device; It comprises loose tool and following loose tool; The said loose tool of going up all is equipped with handle with following fetal membrane, it is characterized in that: said upward fetal membrane and following fetal membrane have the deep-slotted chip breaker of symmetrical configuration, and the bottom string of said deep-slotted chip breaker is wide to be bar diameter to be processed; The camber of said deep-slotted chip breaker is the section radius after the local pulling of bar to be processed, said deep-slotted chip breaker with said go up loose tool or said under loose tool respectively be connected the end face arc transition.

2. a kind of loose tool pulling device that is used for the local pulling of axially symmetric structure bar according to claim 1 is characterized in that: said arc transition circular arc and the former side face of bar to be processed and local the pulling after design transition circular arc between the side face consistent.

3. a kind of loose tool pulling device that is used for the local pulling of axially symmetric structure bar according to claim 2; It is characterized in that: the said handle vertical fixing that goes up loose tool is in the said right-hand member lateral wall of going up loose tool, and the handle of said loose tool down is axially fixed at the said left end lateral wall of loose tool down along bar to be processed.