CN-121972554-A - Multi-degree-of-freedom flexible spinning forming equipment

CN121972554ACN 121972554 ACN121972554 ACN 121972554ACN-121972554-A

Abstract

The invention discloses multi-degree-of-freedom flexible spinning forming equipment, and particularly relates to the field of spinning forming processing. The rotary wheel assembly comprises a first motor, the first motor is in transmission connection with a first rotating shaft, the first rotating shaft is connected with a second rotating shaft through a gear and a rack, the second rotating shaft is parallel to the first rotating shaft, the second rotating shaft is vertically connected with a driving shaft, the driving shaft is movably connected with a rotary wheel, the rotary wheel corresponding to the second moving guide rail assembly is located on the outer side of a workpiece, and the rotary wheel corresponding to the fourth moving guide rail assembly is located on the inner side of the workpiece. Through the device, the multi-degree-of-freedom loading of the spinning wheel can be realized.

Inventors

GAO PENGFEI
REN ZHIPENG
ZHAN MEI
MA FEI
FAN XIAOGUANG

Assignees

西北工业大学

Dates

Publication Date: 20260505
Application Date: 20260408

Claims (10)

1. A multiple degree of freedom flexible spin forming apparatus comprising: One end of the core mold is rotationally connected with a first driving mechanism, and the blank is connected with the other end of the core mold; The first movable guide rail assembly is positioned below the blank and is vertically and slidably connected with the second movable guide rail assembly; The top of the support assembly is connected with a third movable guide rail assembly which is positioned above the blank, and the third movable guide rail assembly is vertical and is connected with a fourth movable guide rail assembly in a sliding manner; the second movable guide rail assembly and the fourth movable guide rail assembly are respectively and slidably connected with a rotary wheel assembly; The rotary wheel assembly comprises a rotary wheel seat, a first motor is arranged in the rotary wheel seat, an output shaft of the first motor is vertically connected with a first rotating shaft through a reversing assembly in a transmission manner, and two gears are sleeved on the first rotating shaft; The second rotating shaft is parallel to the first rotating shaft, and two racks are fixed on one side of the second rotating shaft and meshed with the gear; The driving shaft is vertically fixed on the other side of the second rotating shaft, and is movably connected with a rotary wheel; the rotary wheel corresponding to the second movable guide rail assembly is positioned at the outer side of the workpiece, and the rotary wheel corresponding to the fourth movable guide rail assembly is positioned at the inner side of the workpiece.
2. The multiple degree of freedom flexible spin forming apparatus of claim 1 wherein the working profile of the spin wheel includes at least two circular arcs of fillet radius.
3. The multiple degree of freedom flexible spinning forming apparatus of claim 1, wherein the first moving rail assembly comprises a first rail body, one end of the first rail body is provided with a second driving mechanism, the second driving mechanism is connected with a first screw rod, and the first screw rod is connected with a first sliding block through threads; the second movable guide rail assembly is connected to the first slider.
4. The multiple degree of freedom flexible spin forming apparatus of claim 3, wherein, The second movable guide rail assembly comprises a second guide rail body, and a second lead screw is arranged in the second guide rail body; the second guide rail body and the second lead screw vertically penetrate through the first sliding block, and a third driving mechanism is arranged at one end of the second guide rail body and is connected with the second lead screw, and the third driving mechanism is positioned below the first guide rail body; the second lead screw is connected with a first connecting seat in a threaded manner, the first connecting seat is fixedly connected with the spin wheel seat, and the first connecting seat is positioned above the first guide rail body.
5. The multiple degree of freedom flexible spinning forming apparatus of claim 4 wherein the first rail body comprises two parallel first rails, the first drive mechanism is located at one end of the first rails, the first lead screw is located between the two first rails; The second guide rail body comprises two parallel second guide rails, and the second lead screw is positioned between the two second guide rails.
6. The multiple degree of freedom flexible spin forming apparatus of claim 4, further comprising a base, the first drive mechanism being located inside the base; The surface of the base is provided with a channel, and the two first guide rails are positioned at two sides of the channel; the second guide rail body and the second lead screw pass through the channel, and the third driving mechanism is positioned in the base; The support component is fixed on the surface of the base.
7. The multiple degree of freedom flexible spin forming apparatus of claim 1 wherein the third moving rail assembly comprises: The two cross beams are symmetrically connected to the supporting component, a fourth driving mechanism is arranged between the two cross beams and is connected with a third screw rod, a second sliding block is connected to the third screw rod in a threaded manner, and the second sliding block is positioned between the two cross beams; The fourth movable guide rail component is connected to the second sliding block and is positioned between the cross beam and the third screw rod.
8. The multiple degree of freedom flexible spinning forming apparatus of claim 7, wherein the fourth moving rail assembly comprises a third rail body, one end of the third rail body is provided with a fifth driving mechanism, and the fifth driving mechanism is connected with a fourth screw; The fourth lead screw vertically penetrates through the second sliding block, and the third guide rail body is connected to the outer side of the second sliding block; The fourth screw rod is connected with a second connecting seat in a threaded mode, the second connecting seat is located below the second sliding block, and the second connecting seat is fixedly connected with the corresponding spin wheel seat.
9. The multi-degree-of-freedom flexible spinning forming device of claim 8, wherein one side of the second slider away from the third guide rail body is connected with a bump, and a sliding groove matched with the bump is arranged on the cross beam; the third guide rail body comprises a fixed plate, the two sides of the fixed plate are connected with third guide rails, and the second connecting seat is in sliding connection with the third guide rails.
10. The multiple degree of freedom flexible spinning forming apparatus of claim 1 wherein the support assembly comprises a support column and an n-type support frame, one end of the third movable rail assembly being connected to the support column and the other end being connected to the support frame; the first movable guide rail assembly is positioned between the support column and the first driving mechanism; The first driving mechanism includes: a second motor; One end of the main shaft is connected with the core mould; And the two ends of the transmission belt are respectively connected with the second motor and the other end of the main shaft through belt pulleys, and the main shaft and the second motor are positioned on the same side of the transmission belt.

Description

Multi-degree-of-freedom flexible spinning forming equipment Technical Field The invention relates to the field of spinning forming, in particular to multi-degree-of-freedom flexible spinning forming equipment. Background The spinning forming technology is an advanced near-net plastic forming method for the thin-wall revolving body component. The technology drives the core mold and the blank to rotate through the main shaft, and the blank is enabled to generate continuous local deformation through the feeding motion of the rotary wheel, so that the revolving body component is obtained. The method has the advantages of high forming efficiency, small forming load, integral forming and the like, and is widely applied to forming various revolving body components. However, the traditional spinning forming workpiece is formed under the rigid support of the inner core die and the loading action of the outer spinning roller, the forming mode can only be regulated and controlled through the loading parameters of the outer spinning roller, the regulating and controlling flexibility is limited, the various requirements of complicated variable-curvature and variable-wall-thickness special-shaped structure forming are difficult to adapt, and the spinning forming flexibility is reduced. In addition, the existing spinning equipment is single in function, and when flanging, reducing and expanding spinning forming of the revolving body component are carried out, a specific tool and die are often required to be replaced, even the equipment is modified, so that the universality of the spinning equipment is reduced. The reason for the limitation is that the existing spinning equipment has insufficient loading freedom and poor shaping capability on complex components in different forms, and the complex components in different types can be shaped only by matching with a specific core mould and even modifying equipment. Disclosure of Invention The application mainly aims to provide multi-degree-of-freedom flexible spinning forming equipment, and aims to solve the problem that the existing spinning forming equipment is low in loading freedom degree. In order to achieve the aim, the application provides multi-degree-of-freedom flexible spinning forming equipment, which comprises a core mould, a first driving mechanism and a second driving mechanism, wherein one end of the core mould is rotationally connected with the first driving mechanism, and a blank is connected with the other end of the core mould; the device comprises a blank, a first movable guide rail assembly, a support assembly, a third movable guide rail assembly, a fourth movable guide rail assembly, a driving shaft, a rotating wheel assembly, a rotating wheel, a first motor and a second rotating shaft, wherein the first movable guide rail assembly is arranged below the blank and is vertically and slidably connected with the second movable guide rail assembly, the top of the support assembly is connected with the third movable guide rail assembly, the third movable guide rail assembly is arranged above the blank, the third movable guide rail assembly is vertically and slidably connected with the fourth movable guide rail assembly, the third movable guide rail assembly is parallel to the first movable guide rail assembly, the rotating wheel assemblies are respectively and slidably connected with the second movable guide rail assembly, the rotating wheel assemblies comprise rotating wheel seats, a first motor is arranged in the rotating wheel assemblies, an output shaft of the first motor is vertically connected with a first rotating shaft through a reversing assembly, two gears are sleeved on the first rotating shaft, the second rotating shaft is parallel to the first rotating shaft, two racks are fixed on one side of the second rotating shaft, the racks are meshed with the gears, the length of the racks is smaller than the circumference of the second rotating shaft, the driving shaft is vertically fixed on the other side of the second rotating shaft, the driving shaft is movably connected with the rotating wheels, the corresponding to the second movable guide rail assemblies are arranged on the outer sides of the rotating wheel seats, the rotating wheels are located on the rotating wheels, the workpiece, the inner sides of the corresponding rotating wheels of the rotating guide rail assemblies are located on the workpiece. Optionally, the working profile of the rotor comprises at least two circular arcs of fillet radius. Optionally, the first movable guide rail assembly comprises a first guide rail body, one end of the first guide rail body is provided with a second driving mechanism, the second driving mechanism is connected with a first lead screw, the first lead screw is connected with a first sliding block in a threaded manner, and the second movable guide rail assembly is connected to the first sliding block. Optionally, the second movable guide rail assembly compri