Cutting device for wire hairpin ends

Abstract

A cutting apparatus for jointly cutting multiple wire hairpin ends protruding from an annular housing of an electromechanical component, particularly a stator, to obtain wire square flat ends protruding from the annular housing. The cutting apparatus comprises a cutting device (300) driven by at least one actuator unit, wherein the cutting device (300) has a first disk (302) having a plurality of equally spaced spiral grooves and a second disk (303) having a plurality of equally spaced T-shaped grooves, the second disk (303) being axially positioned above the first disk (302), so that the two disks (302, 303) have a common central axis; a plurality of radial cam cutter assemblies are held by the two disks (302, 303) and arranged around the common central axis. Each cam cutter assembly includes a blade (314) having a cutting edge oriented toward the central common axis, and a linear drive support element including a cutter holder and a cam (311), the cam (311) being mounted in equally spaced spiral grooves, and the cutter holder being radially slidable within a T-shaped groove, and the at least one actuator unit being configured to rotationally drive a first disk (302), thereby causing the blade (314) to move radially simultaneously to jointly cut wire hairpin ends protruding from an annular housing.

Claims

1. In particular, a cutting device for obtaining a square flat end of a wire protruding from an annular housing of an electromechanical component, such as a stator, which jointly cuts multiple wire hairpin ends protruding from the annular housing, The cutting apparatus comprises a cutting device driven by at least one actuator unit, and the cutting device is The device comprises a first disk having a plurality of equally spaced spiral grooves, and a second disk having a plurality of equally spaced T-shaped grooves, wherein the second disk is axially positioned above the first disk such that the two disks share a common central axis; A plurality of radial cam cutter assemblies, held by two disks and arranged around the central common axis, where each cam cutter assembly includes a blade with a cutting edge oriented toward the central common axis, a linear drive support element including a cutter holder, and a cam It has, The cam is mounted in the equally spaced spiral grooves, and the cutter holder is mounted in the T-shaped groove so as to be slidable in the radial direction. The at least one actuator unit is configured to rotate the first disk, thereby causing the blades to move radially simultaneously and jointly cut the wire hairpin ends protruding from the annular housing. Cutting device.

2. The cutting apparatus according to claim 1, wherein, in order to avoid the need to replace the entire cam cutter assembly in the event of damage to the blade, the blades are connected to their respective cutter holders by at least one removable connecting element, such as a screw.

3. The cutting apparatus according to claim 1, wherein each spiral groove is engaged by two cams held by two adjacent cutter holders.

4. The cutting apparatus according to claim 3, wherein the two adjacent cutter holders are of different lengths, and as a result, all of the cutting edges are equidistant from the common central axis of the disk.

5. A cutting device according to claim 1, comprising a base frame assembly, a peripheral frame assembly disposed on the base frame assembly, an HMI interface, and a robotic manipulator, wherein the robotic manipulator is configured to function as a gripper for holding the annular housing of an electromechanical component such as a stator, and to move the annular housing to an operating position for advancing the cutting operation of a wire end.

6. The cutting device according to claim 1, wherein the at least one actuator unit includes a left-side hydraulic cylinder structure device and a right-side hydraulic cylinder structure device, respectively, connected to two sides of the cutting device.

7. A cutting device according to any one of claims 1 to 6, further comprising a waste funnel positioned below the cutting device and a waste pipeline connected to the waste funnel, wherein, after cutting the wire end, the cut material may be disposed of by gravity through the waste funnel and the waste pipeline.

8. In particular, a method for jointly cutting multiple wire hairpin ends protruding from an annular housing of an electromechanical component, such as a stator, in order to obtain a square flat end of a wire protruding from the annular housing, The invention comprises the step of providing a cutting device driven by at least one actuator unit, wherein the cutting device is The device comprises a first disk having a plurality of equally spaced spiral grooves, and a second disk having a plurality of equally spaced T-shaped grooves, wherein the second disk is axially positioned above the first disk such that the two disks share a common central axis; A plurality of radial cam cutter assemblies, held by the two disks and arranged around the central common axis, where each cam cutter assembly includes a blade with a cutting edge oriented toward the central common axis, a linear drive support element including a cutter holder, and a cam It has, The cam is mounted in the equally spaced spiral grooves, and the cutter holder is mounted in the T-shaped groove so as to be slidable in the radial direction. The method comprises an action to rotate the first disk, thereby causing the blades to move radially simultaneously and jointly cut the wire hairpin ends protruding from the annular housing. method.

Images