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CN-122007235-A - Cylindrical part inner side annular reverse spinning forming equipment and forming method

CN122007235ACN 122007235 ACN122007235 ACN 122007235ACN-122007235-A

Abstract

The application relates to the field of spinning forming, in particular to a cylindrical part inner side annular reverse spinning forming device and a forming method, comprising a frame, wherein a rotating device and a spinning device are arranged on the frame, the rotating device comprises a rotating shaft, a driving mechanism and a die, the die is used for placing a workpiece, the rotating shaft and the driving mechanism are arranged on the frame, the driving mechanism is connected with the rotating shaft, the die is arranged on the rotating shaft, the spinning device comprises a travelling mechanism, a cantilever and at least two spinning wheels, the travelling mechanism is arranged on the frame, the cantilever is arranged on the travelling mechanism, one end of the cantilever extends towards the direction of the rotating shaft, at least two spinning wheels are arranged on the cantilever, close to one end of the rotating shaft, and the at least two spinning wheels are equidistantly arranged along the circumferential direction of the end part of the cantilever, and are used for spinning the workpiece arranged in the die.

Inventors

  • WANG FENGHUA
  • ZHANG YICHAO

Assignees

  • 苏州轻装智能制造科技有限公司

Dates

Publication Date
20260512
Application Date
20231212

Claims (10)

  1. 1. The cylindrical part inner side annular reverse spinning forming device comprises a frame (1) and is characterized in that a rotating device (2) and a spinning device (3) are arranged on the frame (1), the rotating device (2) comprises a rotating shaft (21), a driving mechanism (23) and a die (22), a workpiece (6) is placed in the die (22), the rotating shaft (21) and the driving mechanism (23) are mounted on the frame (1), the driving mechanism (23) is connected with the rotating shaft (21), the die (22) is mounted on the rotating shaft (21), the spinning device (3) comprises a travelling mechanism (31), a cantilever (32) and at least two cantilever wheels (33), the travelling mechanism (31) is mounted on the frame (1), the cantilever wheels (32) are mounted on the travelling mechanism (31), one end of the cantilever wheels (32) extend towards the direction of the rotating shaft (21), the at least two spinning wheels (33) are mounted on one end, close to the rotating shaft (21), of the spinning wheels (32), and the at least two cantilever wheels (33) are mounted on the end portions (32) in the circumferential direction of the cantilever wheels (33) along the rotating direction of the rotating shaft (21), and the end portions (33) are mounted on the die (6).
  2. 2. The cylindrical part inside annular reverse spinning forming equipment according to claim 1, wherein an adjusting mechanism (4) for adjusting the distance between a spinning wheel (33) and the inner wall of a die (22) is mounted on the cantilever (32), the adjusting mechanism (4) comprises a power assembly (41) and an adjusting assembly (42), the adjusting assembly (42) comprises an adjusting screw (421) and a sliding block (422), the adjusting screw (421) is rotatably mounted at the end of the cantilever (32) close to one end of the die (22), the axis of the adjusting screw (421) is perpendicular to the axis of the cantilever (32), the sliding block (422) is slidably mounted on the cantilever (32), the sliding block (422) is in threaded connection with the adjusting screw (421), the spinning wheel (33) is mounted on the sliding block (422), the power assembly (41) is mounted on the cantilever (32), and the power assembly (41) is connected with the adjusting screw (421).
  3. 3. The cylindrical part inner side circumferential reverse spinning forming equipment according to claim 2, wherein the power assembly (41) comprises an adjusting motor (411), an adjusting rod (412) and an adjusting gear (413), the adjusting motor (411) is mounted on the cantilever (32), the adjusting rod (412) is rotatably mounted on the cantilever (32), the axis of the adjusting rod (412) is parallel to the axis of the cantilever (32) in the length direction, the adjusting rod (412) is connected with an output shaft of the adjusting motor (411), the adjusting gear (413) is coaxially mounted at one end of the adjusting rod (412) far away from the adjusting motor (411), a transmission gear (414) is mounted at the end of the adjusting screw (421), and the transmission gear (414) is meshed with the adjusting gear (413).
  4. 4. The device for forming the inner side of the cylindrical part by reverse spinning is characterized in that a connecting mechanism (5) is further arranged on the rotating shaft (21) at the position connected with the die (22), the connecting mechanism (5) comprises a positioning component (51) and a blanking component (52), the positioning component (51) comprises a positioning frame (511), a positioning block (513) and a positioning spring (514), a splicing groove (211) is arranged at the end part of the rotating shaft (21), the splicing groove (211) is used for splicing the die (22) and the workpiece (6), a positioning groove (213) is further arranged at the end part of the rotating shaft (21), the positioning groove (213) is communicated with the splicing groove (211), the positioning frame (511) is arranged in the positioning groove (213), the positioning block (513) is slidably arranged on the positioning frame (511), one end of the positioning spring (514) is connected with the side wall of the positioning frame (511), the other end of the positioning spring (514) is connected with the side wall of the positioning block (513), the other end of the positioning spring (514) is far away from the inner wall (513) of the positioning groove (6), the positioning block (513) is connected with the blanking assembly (52).
  5. 5. The device for annular reverse spin forming inside a cylindrical member according to claim 4, wherein the blanking member (52) comprises a blanking rod (521), a push rod (524) and a blanking spring (525), a mounting groove (212) is further formed in the end portion of the rotary shaft (21), the mounting groove (212) is communicated with the positioning groove (213), the blanking rod (521) is slidably mounted in the mounting groove (212) along the axial direction of the rotary shaft (21), the axis of the blanking rod (521) is perpendicular to the axis of the positioning block (513), one end of the blanking rod (521) extends out of the end portion of the rotary shaft (21), one end of the blanking rod (521) is located outside the mounting groove (212) and is used for abutting against the cantilever (32), a push block (523) is mounted on the side wall of the blanking rod (521), one side of the push block (521) close to the side wall of the rotary shaft (21) is provided with a compression inclined surface, the guide rod (523) is mounted on the side wall of the guide rod (525) and is used for abutting against the side wall (515) of the blanking rod (515), the guide rod (521) is mounted on the side wall (515) of the side wall (515) in a compression inclined surface, the other end links to each other with the inner wall of mounting groove (212), deflection groove (214) have still been seted up in rotation axis (21), deflection groove (214) one end and jack-in groove (211) intercommunication, the other end and mounting groove (212) intercommunication, push rod (524) rotate and install in deflection groove (214), just the one end of push rod (524) extends to jack-in groove (211) department, push rod (524) are located the one end of jack-in groove (211) department and are used for contradicting mould (22) and work piece (6), the other end of push rod (524) extends to mounting groove (212) department, just the other end of push rod (524) is used for contradicting with the tip of unloading pole (521), reset spring (526) are still installed in the deflection, reset spring (526) one end links to each other with the inner wall of deflecting, and the other end links to each other with the lateral wall of push rod (524).
  6. 6. The device for annular reverse spinning forming of the inner side of the cylindrical part of claim 5, wherein the side wall of the blanking rod (521) close to the positioning frame (511) is provided with a compression groove (5211), and the side wall of the compression groove (5211) is used for abutting against one end of the positioning frame (511) far away from the positioning block (513).
  7. 7. The device for annular reverse spin forming of the inner side of a cylindrical member according to claim 5, wherein a top plate (321) is arranged at an end of the cantilever (32) close to one end of the rotating shaft (21), and the top plate (321) is used for abutting against one end of the blanking rod (521) located outside the mounting groove (212) of the rotating shaft (21).
  8. 8. A cylindrical member inner side circumferential direction reverse spin forming method based on the cylindrical member inner side circumferential direction reverse spin forming apparatus according to any one of claims 1 to 7, comprising the steps of: Charging, namely inserting a workpiece (6) and a die (22) at the end part of a rotating shaft (21), and positioning the workpiece (6) and the die (22) through a positioning assembly (51); spinning, driving a die (22) and a workpiece (6) on a rotating shaft (21) to rotate, moving a cantilever (32), enabling spinning rollers (33) on the cantilever (32) to extend into the workpiece (6), and spinning the workpiece (6) through at least two spinning rollers (33); and blanking, namely taking down the workpiece (6) and the die (22) after spinning from the rotating shaft (21).
  9. 9. The method of claim 8, wherein the spinning step further comprises adjusting the spinning wheel (33), and the power assembly (41) drives the adjusting assembly (42) to operate, so that the adjusting assembly (42) drives the spinning wheel (33) to move, and the distance between the spinning wheel (33) and the inner wall of the workpiece (6) is adjusted.
  10. 10. The method of claim 8, wherein the step of blanking and the step of spinning further comprise unlocking, wherein the blanking assembly (52) is driven by the top plate (321) on the cantilever (32) to act, the blanking assembly (52) is driven by the positioning assembly (51) to act, and the positioning assembly (51) is unlocked from the die (22) and the workpiece (6).

Description

Cylindrical part inner side annular reverse spinning forming equipment and forming method Technical Field The application relates to the field of spinning forming, in particular to a cylindrical part inner side annular reverse spinning forming device and a forming method. Background The spinning is to fix the flat plate or hollow blank on the mould of the spinning machine, and to press the blank with a spinning wheel or a rod while the blank rotates along with the main shaft of the bed, so as to generate local plastic deformation. Spinning is a special forming method, and the spinning method can be used for finishing the processes of drawing, flanging, necking, bulging, curling and the like of the rotating body. At present, for spinning of a cylindrical part, forward spinning is generally adopted, the cylindrical part to be spun is firstly fixed on a spinning die on a rotating shaft of a machine tool through a flange, a cantilever beam is arranged on the machine tool along the axial direction of the rotating shaft, a spinning wheel is arranged at the end part of the cantilever beam, the cantilever beam is driven to move towards the cylindrical part along the horizontal direction, so that the spinning wheel is driven to move to the cylindrical part, and then the cantilever is driven to move along the vertical direction, so that the spinning wheel is driven to move in the vertical direction, and the spinning wheel is close to the inner wall of the cylindrical part. And then the rotary shaft is driven to rotate, so that the cylindrical part is driven to rotate, and the cylindrical part is subjected to spinning thinning through the spinning roller. However, as only one spinning roller is arranged on the cantilever beam, the spinning roller is easy to cause unbalanced stress of a spinning die when spinning the cylindrical part, and inconsistent spinning thinning rate of the cylindrical part is easy to cause poor spinning effect of the cylindrical part. Disclosure of Invention In order to improve the spinning effect of a cylindrical part, the application provides annular reverse spinning forming equipment and a forming method on the inner side of the cylindrical part. In a first aspect, the application provides a cylindrical part inner side annular reverse spinning forming device, which adopts the following technical scheme: The utility model provides a cylinder inboard hoop reverse spinning former, includes the frame, be equipped with rotary device and spinning device in the frame, rotary device includes rotation axis, actuating mechanism and mould, be used for placing the work piece in the mould, rotation axis and actuating mechanism install in the frame, actuating mechanism links to each other with the rotation axis, the mould is installed on the rotation axis, spinning device includes advancing mechanism, cantilever and at least two spinning wheels, advancing mechanism installs in the frame, the cantilever is installed on advancing mechanism, just the one end of cantilever extends to the direction of rotation axis, at least two spinning wheels are all installed and are close to the one end of rotation axis on the cantilever, and at least two the spinning wheel is installed along the circumferencial direction equidistance of cantilever tip, the spinning wheel is used for carrying out the spinning to the work piece of installing in the mould. Through adopting above-mentioned technical scheme, through installing mould and cylindric work piece on the rotation axis, then through actuating mechanism drive rotation axis rotation to drive the work piece rotation. And then the cantilever is driven to move through the travelling mechanism, so that the cantilever drives at least two spinning rollers arranged on the cantilever to move to the workpiece, and then the workpiece is subjected to spinning thinning treatment through the spinning rollers. Because at least two spinning rollers on the cantilever are equidistantly arranged along the circumferential direction of the cantilever, when the spinning rollers spin a workpiece, the inner wall of the die can be stressed uniformly, so that the spinning thinning rate of the workpiece is consistent, and the spinning effect of the cylindrical part is improved conveniently. In a specific implementation manner, an adjusting mechanism for adjusting the distance between the spinning wheel and the inner wall of the die is mounted on the cantilever, the adjusting mechanism comprises a power component and an adjusting component, the adjusting component comprises an adjusting screw rod and a sliding block, the adjusting screw rod is rotatably mounted at the end part of the cantilever, which is close to one end of the die, and the axis of the adjusting screw rod is perpendicular to the axis of the cantilever, the sliding block is slidably mounted on the cantilever, the sliding block is connected with the threads of the adjusting screw rod, the spinning wheel is mounted on the sliding bl