Making a plurality of notching marks on flanges of a rule to enable bending of the rule, including: punching the plurality of notching marks on the flanges of the rule to enable shaping of the rule into a channel letter; and tapering the flanges positioned around sharp notching angles made on the channel letter.

Pressure die systems configured to be used in a tube bending machine having a machine frame. The pressure die systems include a system frame, a first pressure die, a second pressure die, and a pivot assembly. The first pressure die is supported on the system frame. The second pressure die is spaced from the first pressure die and supported on the system frame. The pivot assembly is moveably mounted to the system frame between the first pressure die and the second pressure die. The system frame pivots about the pivot assembly. The pivot assembly is configured to move relative to the system frame to different positions between the first pressure die and the second pressure die to define different pivot positions for the system frame.

Tube bending devices including a device actuator, a crank assembly, a bending die, and a clamp assembly. The crank assembly is mechanically coupled to the device actuator. The bending die is mechanically coupled to the crank assembly. The clamp assembly is operatively coupled to the bending die and secures the tube to the bending die. The device actuator selectively drives the crank assembly. In some examples, the crank assembly selectively rotates the bending die over at least 180 degrees. In some examples, the bending die includes an axle and the crank assembly includes a first link, a crank actuator, and a second link. The first link is pivotally coupled to the device actuator and coupled to the axle. The crank actuator is pivotally coupled to the first link. The second link is pivotally coupled to the crank actuator and coupled to the axle.

Tube bending devices including a device actuator, a crank assembly, a bending die, and a clamp assembly. The crank assembly is mechanically coupled to the device actuator. The bending die is mechanically coupled to the crank assembly. The clamp assembly is operatively coupled to the bending die and secures the tube to the bending die. The device actuator selectively drives the crank assembly. In some examples, the crank assembly selectively rotates the bending die over at least 180 degrees. In some examples, the bending die includes an axle and the crank assembly includes a first link, a crank actuator, and a second link. The first link is pivotally coupled to the device actuator and coupled to the axle. The crank actuator is pivotally coupled to the first link. The second link is pivotally coupled to the crank actuator and coupled to the axle.

A conduit bender to assist with the bending of a conduit includes a lever defining a longitudinal axis and having a free end and a fixed end, a head assembly configured to receive a conduit to be bent, a rotary assembly operably coupling the fixed end of the lever to the head assembly such that the lever is pivotable relative to the head to a position corresponding to desired bend angle, and a level disposed at the free end of the rotary lever and aligned on the longitudinal axis such that the level indicates a level condition when a conduit is bent to the desired bend angle.

The invention relates to a device (1) for bending a profiled workpiece (2), comprising a movably mounted, drivable bending tool (3) and a holder (4) for the profiled workpiece (2), the holder (4) having a profiled channel (29) for the profiled workpiece (2), on the outlet side (5) of which is formed a counter-tool (5′) for the profiled workpiece (2) when the latter is bent, wherein the bending tool (3) can be driven relative to said counter-tool (5′).

The invention relates to a device (1) for bending a profiled workpiece (2), comprising a movably mounted, drivable bending tool (3) and a holder (4) for the profiled workpiece (2), the holder (4) having a profiled channel (29) for the profiled workpiece (2), on the outlet side (5) of which is formed a counter-tool (5′) for the profiled workpiece (2) when the latter is bent, wherein the bending tool (3) can be driven relative to said counter-tool (5′).

The present disclosure relates to a process of machining a metal middle frame, which includes the following steps of: obtaining a sheet material and cutting the sheet material into a linear profile; performing a finish machining to the linear profile; bending the linear profile after the finish machining, obtaining a metal border frame with an R angle; welding the metal border frame; and placing the metal border frame after the welding in a die-casting mold, providing a die-casting metal liquid, thereby obtaining a die-cast middle plate connected to the metal border frame, so as to form the metal middle frame.

Tube bending devices including a device actuator, a crank assembly, a bending die, and a clamp assembly. The crank assembly is mechanically coupled to the device actuator. The bending die is mechanically coupled to the crank assembly. The clamp assembly is operatively coupled to the bending die and secures the tube to the bending die. The device actuator selectively drives the crank assembly. In some examples, the crank assembly selectively rotates the bending die over at least 180 degrees. In some examples, the bending die includes an axle and the crank assembly includes a first link, a crank actuator, and a second link. The first link is pivotally coupled to the device actuator and coupled to the axle. The crank actuator is pivotally coupled to the first link. The second link is pivotally coupled to the crank actuator and coupled to the axle.

Tube bending devices including a device actuator, a crank assembly, a bending die, and a clamp assembly. The crank assembly is mechanically coupled to the device actuator. The bending die is mechanically coupled to the crank assembly. The clamp assembly is operatively coupled to the bending die and secures the tube to the bending die. The device actuator selectively drives the crank assembly. In some examples, the crank assembly selectively rotates the bending die over at least 180 degrees. In some examples, the bending die includes an axle and the crank assembly includes a first link, a crank actuator, and a second link. The first link is pivotally coupled to the device actuator and coupled to the axle. The crank actuator is pivotally coupled to the first link. The second link is pivotally coupled to the crank actuator and coupled to the axle.