A necking-flanging roller and a necking-flanging mechanism are disclosed. The necking-flanging roller is used to form the necking portion and the flanging portion on the housing, including a roller body; and a limiting portion, arranged along the axial direction of the roller body and oppositely to the roller body, wherein a gap is formed between the roller body and the limiting portion, and the gap is provided for the free end of the flanging portion to insert therein and restricts the free end from bending and deforming. The technical solution provided in the present disclosure can improve the quality of the battery.

A necking-flanging roller and a necking-flanging mechanism are disclosed. The necking-flanging roller is used to form the necking portion and the flanging portion on the housing, including a roller body; and a limiting portion, arranged along the axial direction of the roller body and oppositely to the roller body, wherein a gap is formed between the roller body and the limiting portion, and the gap is provided for the free end of the flanging portion to insert therein and restricts the free end from bending and deforming. The technical solution provided in the present disclosure can improve the quality of the battery.

A spinning device includes a flange forming section that, in a state where a base material having a tubular shape and including at least a large-diameter portion and a small-diameter portion is relatively rotated, forms a flange portion protruding in a direction away from a center axis by pressing the large-diameter portion in a center axis direction of the base material while contacting an outer peripheral portion of the small-diameter portion.

An electric pipe expander and intelligent control circuit for the electric pipe expander are provided. The electric pipe expander includes a pipe expander body and a mandrel sliding cavity disposed on the pipe expander body. A chuck body capable of clamping a pipe to be processed is disposed at an opening end of the mandrel sliding cavity. A mandrel is slidingly connected in the mandrel sliding cavity, an outer side end of the mandrel is provided with an obliquely disposed pipe expanding cone, an inner side end of the mandrel is provided with an elastic body accommodating cavity. Flat keys are disposed on the mandrel, and an elastic body is clamped and disposed between the flat keys and a bottom surface of the elastic body accommodating cavity.

A tool for roll-forming a noncircular lip of a component includes a central shaft, first and second axles, and first and second rollers. The central shaft has a longitudinal axis. The central shaft is adapted to rotate about the longitudinal axis. The axles extend from and are fixed to the central shaft. The axles have respective first and second lateral axes that extend substantially perpendicular to the longitudinal axis. The rollers are rotatably coupled to respective axles, adapted to rotate about the respective lateral axes, radially spaced with respect to the longitudinal axis, and circumferentially spaced with respect to each other. The first and second rollers are adapted to concurrently operably engage the noncircular lip, and deform the noncircular lip.

A device for forming seam of elbow duct is provided, and the device for forming seam of elbow duct that molds a lockseam by bending a flange of one pair of adjacent unit members, of a plurality of unit members constituting the elbow duct, including a base that supports a lower portion of the one pair of unit members; an elevating part that moves the base up and down; an angle adjustment part that adjusts a supporting angle of the base; a fixing chuck that supports an inner circumferential surface of a connecting portion of the one pair of unit members; a rotating part that rotates the fixing chuck; and a forming part that bends the flange of the one pair of unit members in a state where the flange is in contact to each other, to form the seam.

The present invention relates to methods of working sheet metal and an apparatus. Methods include providing a sheet metal workpiece having first and second surfaces opposed to each other and at least one edge, bending the workpiece to form at least a first sidewall portion, the first sidewall portion thereby defining a curved fold region in the sheet metal workpiece adjacent the first sidewall portion. The first anvil tool and a first forming tool are provided for contact with and constraint of the first and second surfaces of the sheet metal workpiece respectively. The forming tool and/or anvil tool are then slid along the curved fold region to cause shear material transfer in the curved fold region to further deform the curved fold region. Methods can allow for formation of components of similar shape as made at present by deep drawing methods, but with less wastage of the starting material.

An electric pipe expander and intelligent control circuit for the electric pipe expander are provided. The electric pipe expander includes a pipe expander body and a mandrel sliding cavity disposed on the pipe expander body. A chuck body capable of clamping a pipe to be processed is disposed at an opening end of the mandrel sliding cavity. A mandrel is slidingly connected in the mandrel sliding cavity, an outer side end of the mandrel is provided with an obliquely disposed pipe expanding cone, an inner side end of the mandrel is provided with an elastic body accommodating cavity. Flat keys are disposed on the mandrel, and an elastic body is clamped and disposed between the flat keys and a bottom surface of the elastic body accommodating cavity.

A roller hemming processing apparatus adapted to perform a hemming processing has a hemming die, on which a panel-like workpiece having a hemming flange portion on a periphery portion thereof, is positioned and supported, a roller hemming processing tool that is moved along a longitudinal direction of the hemming flange portion to bend the hemming flange portion at a root portion thereof while pressing the hemming flange portion toward the hemming die, and a nesting block disposed at a part of the periphery of the hemming die. The nesting block performs positioning of the workpiece by being brought into contact with the root portion of the hemming flange portion with which the workpiece is formed. The nesting block is elastically supported to be retractable in the pressing direction and to be swingably displaceable in the longitudinal direction of the hemming flange portion.

A hand held flaring tool for flaring an end of a tube includes a body portion and a handle portion. The body portion receives the tube therein and includes a locking actuator operable to actuate a locking mechanism to secure the tube in the body portion. The body portion includes a flaring actuator operable to actuate a flaring mechanism to flare the end of the tube when the tube is secured in the body portion. The handle portion includes a grip portion that is grasped by a user's hand for supporting the body portion of the flaring tool during a flaring process of the tube. While the user is holding the handle portion to support the hand held flaring tool, the user is able to access and actuate first and second user inputs disposed at and accessible at the handle portion to actuate the locking actuator and flaring actuator.