Patent classifications
B21D31/005
DOUBLE-POINT INCREMENTAL FORMING MANUFACTURING METHOD AND APPARATUS BASED ON DEEP REINFORCEMENT LEARNING
The present invention provides a double-point incremental forming manufacturing method and apparatus based on deep reinforcement learning. The method comprises: obtaining a three-dimensional model to be manufactured, performing layering to obtain a plurality of main working paths and a plurality of candidate supporting paths, and selecting an initial current main working path and a current supporting path; respectively cyclically controlling, according to the current main working path and the selected current supporting path, mechanical arms of a master robot and a slave robot for incremental forming in an actual application environment, to obtain a formed curved surface; and taking a deviation value of the formed curved surface and a target curved surface as a state vector, applying a pre-trained deep reinforcement learning model for reinforcement learning, cyclically outputting a supporting path corresponding to the next main working path, and cyclically updating the current main working path and the current supporting path according to the next main working path and the supporting path corresponding to the next main working path until incremental forming of the three-dimensional model is completed. According to the present invention, the support strategy of the slave robot can be adjusted, the flexibility is high, and the forming precision is high.
DOUBLE-POINT INCREMENTAL FORMING MANUFACTURING METHOD AND APPARATUS, AND ELECTRONIC DEVICE
Provided in the present invention are a double-point incremental forming manufacturing method and apparatus, and an electronic device. The method comprises: acquiring a three-dimensional model of a part to be formed; slicing and layering the three-dimensional model to acquire a plurality of 2D curve paths, and respectively generating a master working path of a master robot according to each 2D curve path; and for each master working path, determining and generating a support path of a slave robot according to the master working path and the shape of the three-dimensional model; and processing and manufacturing said part according to the master working path and the support path and by applying a double-point incremental forming method. The present invention can effectively improve the precision of a formed part in a timely manner, and reduce the experiment cost.
SEQUENTIAL SHAPING METHOD
A sequential shaping method is used to shape a metal sheet into a three-dimensional form by pressing and moving a rod-form tool against the metal sheet. In the method, a path along which the rod-form tool moves on the metal sheet is divided into a plurality of local movement regions based on a preset movement path of the rod-form tool; In the method, an entirety of each of the local movement regions is heated from a reverse side, the metal sheet using the rod-form tool, and after shaping the local movement regions, the local movement regions are heated continuously for a fixed time at a temperature at which the metal sheet can be annealed. Then the metal sheet is shaped while sequentially heating an entirety of a subsequent one of the local movement regions following a preceding local movement region.
Vibratory incremental sheet forming tool
An incremental sheet forming tool. The tool includes: a tool body; a tool head, rigidly attached to the body and having a punch; a housing provided in the body; an actuator, located in the housing and capable of producing a vibration in a first direction which can propagate to the punch); and at least one element for transforming the first direction of the vibration into a second direction of the vibration, as it is propagating to the punch.
TILED BACKING MAT SYSTEM FOR AN INCREMENTAL SHEET FORMING SYSTEM WITH RESILIENT TOOLING
A resilient compressible tiled backing mat system used in an Incremental Sheet Forming (ISF) System, the ISF system having a primary rigid forming tool assembly and a backing flat tool assembly including a flat rigid plate for releasably holding the tiled backing mat that is compressed in response to force provided through a work piece by the primary forming tool. The tiled backing mat includes a plurality of individual tiles arrayed in a packed or nested pattern and being releasably secured to the flat rigid plate via a magnetic layer of the tiles. Individual tiles are easily replaced if damaged or worn without replacing the entire mat. Tiled backing mat configurations can be sized according to the area of the flat rigid plated and/or the particular machine area required for forming a selected work piece.
Forming stylus tool design and toolpath generation module for 3 axis computer numerical control manufacturing processes
A method of toolpath generation is provided whereby the tool may be any smooth convex axisymmetric shape. The tool includes a tool body extending between a shank and a head. The shank is configured to be mounted in a collet which may optionally rotate. In the case of a stylus tool, the head has an axisymmetric forming surface used to press metal. In the case of a routing tool, the head has cutting surfaces which are enveloped by a smooth convex axisymmetric surface and the tool is used for milling a part. In a least one embodiment the tool is a stylus tool which has a forming surface that has been generated from a portion of a clothoid curve.