Machining system and machining method

Abstract

To facilitate installation of an extension blade part having undergone foreign matter removal onto a machining station.SOLUTION: A machining system includes a machining station where an end of a segment coil is shaped, a conveyance part that conveys an extension blade part in a state of being held by a holding part, and a foreign substance removal station where foreign materials are removed from the extension blade part. The machining station is provided with a fixing base. The fixing base is provided with an annular ring part that is relatively rotatable into which a flange of the extension blade part is inserted. The ring part is provided with a first positioning section that positions the extension blade part in a radial direction by coming into contact with an outer circumferential end surface of the flange of the extension blade part, a second positioning section that positions the extension blade part in a circumferential direction by coming into contact with a cut portion of the flange of the extension blade part, and a third positioning section that positions the extension blade part in an axial direction by coming into contact with a side surface of the flange of the extension blade part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a processing system and a processing method thereof. [Background technology]

[0002] A system is known in which an extension blade portion is inserted between the segment coils to form the tip end of the segment coil with high positional accuracy (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-121296 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the above-described forming process is performed in the processing station, for example, foreign matter may adhere to the extension blade portion, which requires that the extension blade portion with the foreign matter attached thereto be transported to a foreign matter removal station and the foreign matter removed.

[0005] At this time, if the transport of the expansion blade unit from the processing station to the foreign matter removal station, or the installation of the expansion blade unit in the processing station after the foreign matter has been removed, is performed manually, it takes time and effort.

[0006] The present disclosure has been made to solve such problems, and its main purpose is to provide a processing system and processing method that can easily install an extension blade section in a processing station after removing foreign matter. [Means for solving the problem]

[0007] In order to achieve the above object, one aspect of the present disclosure is to a processing station that forms the tip of the segment coil by inserting the tip of the cylindrical expansion blade portion between the segment coils; a conveying unit that conveys the expansion blade unit between the processing station and the foreign matter removing station while holding the expansion blade unit by a holding unit; the foreign matter removal station, which removes foreign matter from the expansion blade portion transported by the transport unit; Equipped with The rear end of the extended blade portion is formed with a flange portion that protrudes outward, The processing station is provided with a fixing table for fixing the extension blade portion, The fixed base is provided with an annular ring portion that is rotatable relative to the fixed base, and a flange portion of the expansion blade portion is inserted into the ring portion, The ring portion is provided with a first positioning portion that abuts against the outer peripheral end surface of the flange of the expansion blade portion to position the expansion blade portion in the radial direction, a second positioning portion that abuts against the notched portion of the flange of the expansion blade portion to position the expansion blade portion in the circumferential direction, and a third positioning portion that abuts against the side surface of the flange of the expansion blade portion to position the expansion blade portion in the axial direction. Processing System is. In this aspect, The holding portion of the conveying unit may have a first fixed pin that passes through a through hole formed in the flange portion of the expansion blade unit, and a second fixed pin that passes through a through hole formed in the side of the expansion blade unit and is extendable and contractible, and the expansion blade unit may be held by the first and second fixed pins. In this aspect, the expansion blade unit has a first cylindrical expansion blade and a second cylindrical expansion blade arranged outside the first expansion blade, or has the first expansion blade, the second expansion blade, and a third cylindrical expansion blade arranged outside the second expansion blade, The holding portion may hold the expansion blade portion when the first fixing pin passes axially through the through hole in the flange portion of the first and second expansion blades or the first to third expansion blades, and when the second fixing pin is extended and passes radially through the through hole in the side of the first and second expansion blades or the first to third expansion blades. In order to achieve the above object, one aspect of the present disclosure is to a processing station that forms the tip of the segment coil by inserting the tip of the cylindrical expansion blade portion between the segment coils; a conveying unit that conveys the expansion blade unit between the processing station and the foreign matter removing station while holding the expansion blade unit by a holding unit; the foreign matter removal station, which removes foreign matter from the expansion blade portion transported by the transport unit; A processing method for a processing system comprising: The rear end of the extended blade portion is formed with a flange portion that protrudes outward, The processing station is provided with a fixing table for fixing the extension blade portion, The fixed base is provided with an annular ring portion that is rotatable relative to the fixed base, and a flange portion of the expansion blade portion is inserted into the ring portion, The first positioning portion of the ring portion abuts against the outer peripheral end surface of the flange portion of the expansion blade portion, thereby positioning the expansion blade portion in the radial direction; the second positioning portion abuts against the notched portion of the flange portion of the expansion blade portion, thereby positioning the expansion blade portion in the circumferential direction; and the third positioning portion abuts against the side surface of the flange portion of the expansion blade portion, thereby positioning the expansion blade portion in the axial direction. Processing method is. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a processing system and a processing method that can easily install an extension blade section in a processing station after removing foreign matter. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram showing a schematic configuration of a processing system according to an embodiment of the present invention; [Figure 2] FIG. 10 shows an extended blade section. [Figure 3] FIG. 10 is a top view of the fixed portion of the processing station. [Figure 4] 10 is a diagram showing the state in which the flange portion of the expansion blade portion is placed inside the ring portion. FIG. [Figure 5] FIG. 2 is a perspective view showing the configuration of a holding portion. [Figure 6] FIG. 10 is a side view of the holding portion. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, this embodiment will be described with reference to the drawings. Fig. 1 is a perspective view showing a schematic configuration of a processing system according to this embodiment. As shown in Fig. 1, the processing system 1 according to this embodiment includes a processing station 2, a transport unit 3, and a foreign matter removal station 4.

[0011] To reduce the size and increase the output of motors and rotating electrical machines, it is possible to increase the current flowing through the coils in the stator core. However, this requires ensuring the cross-sectional area of the coils used in the stator core, and coils using flat rectangular conductors are used. One method of forming coils using flat rectangular conductors is to use segment coils. This method involves bending the flat rectangular conductor into an approximately U-shape, inserting it into a slot in the stator core, and then welding the tip of the segment coil that protrudes from the end face of the stator core to form the coil.

[0012] 2(a), the processing station 2 uses a cylindrical extension blade portion 21 to shape the tip portions 102 of the segment coils 101 inserted into the slots of the stator core 100. This allows the lead-side tip portions 102 of the conductor segment group protruding from the end face of the stator core 100 to be shaped in their respective predetermined positions and then welded.

[0013] The processing station 2 inserts the tip (upper end) of the extension blade portion 21 between the segment coils 101 to form the tip portions 102 of the segment coils 101 in one go.

[0014] The expansion blade section 21 has, for example, as shown in Figure 2(b), a cylindrical first expansion blade 211 and a cylindrical second expansion blade 212 arranged outside the first expansion blade 211, but is not limited to this.

[0015] As shown in Figure 2(c), the expansion blade section 21 may have a first expansion blade 211, a second expansion blade 212, and a cylindrical third expansion blade 213 arranged outside the second expansion blade 212, and may further have a configuration having only the first expansion blade 211, or a configuration having four or more expansion blades.

[0016] 3 is a top view of the fixed portion of the processing station 2. The processing station 2 is provided with a fixed base 22 for fixing the extension blade portion 21. The extension blade portion 21 performs the above-mentioned forming process on the segment coil 101 while being fixed to the fixed base 22.

[0017] Here, the tip of the extension blade portion 21 requires positioning accuracy, for example, as shown in Fig. 2(a) Therefore, for example, manually positioning the tip of the extension blade portion 21 requires a lot of time and effort.

[0018] In contrast, in this embodiment, as shown in Figure 3, the extension blade portion 21 is placed inside the ring portion 221 of the fixed base 22, and the tip of the extension blade portion 21 can be positioned easily and with high precision simply by rotating the ring portion 221.

[0019] The fixed base 22 is provided with annular ring portions 221 that are rotatable relative to the fixed base 22 and overlap the first and second expansion blades 211, 212 vertically. For clarity, only the ring portion 221 for the first expansion blade 211 is shown in Fig. 3. The following describes the ring portion 221 for the first expansion blade 211, but the ring portion for the second expansion blade 212 has the same configuration as the ring portion 221 for the first expansion blade 211.

[0020] The ring portion 221 is provided with a lever 222 for rotating the ring portion 221. The flange portion 23 of the expansion blade portion 21 is inserted into the ring portion 221 and disposed therein.

[0021] The ring portion 221 is provided with first positioning portions 223 that abut against the outer peripheral end surface of the flange portion 23 of the expansion blade portion 21, thereby positioning the expansion blade portion 21 in the radial direction. The first positioning portions 223 have roller portions 224 whose rolling surfaces abut against the outer peripheral end surface of the flange portion 23 of the expansion blade portion 21, and support portions 225 that are fixed to the inner peripheral surface of the ring portion 221 and support the roller portions 224. For example, three first positioning portions 223 are provided at approximately equal intervals along the inner peripheral surface of the ring portion 221.

[0022] The ring portion 221 is also provided with a second positioning portion 226 that abuts against the notched portion 24 of the flange 23 of the expansion blade portion 21 to position the expansion blade portion 21 in the circumferential direction. The second positioning portion 226 has a roller portion 227 whose rolling surface abuts against the end face of the notched portion 24 of the flange 23 of the expansion blade portion 21, and a support portion 228 that is fixed to the inner peripheral surface of the ring portion 221 and supports the roller portion 227.

[0023] The roller portion 227 is disposed so as to be offset in the up-down direction relative to the ring portion 221. For example, two second positioning portions 226 are provided along the inner peripheral surface of the ring portion 221. The notched portions 24 are formed in the flange portion 23 of the extension blade portion 21 in correspondence with the positions of the second positioning portions 226.

[0024] The ring portion 221 is also provided with a third positioning portion 229 that abuts against the upper surface of the flange 23 of the expansion blade portion 21 to position the expansion blade portion 21 in the axial direction. The third positioning portion 229 has a roller portion 230 whose rolling surface abuts against the upper surface of the flange 23 of the expansion blade portion 21, and a support portion 231 that is fixed to the upper surface of the ring portion 221 and supports the roller portion 230.

[0025] For example, two second positioning portions 226 are provided along the circumferential surface of the ring portion 221. Also, three third positioning portions 229 are provided along the ring portion 221 at approximately equal intervals.

[0026] 4, the flange 23 of the expansion blade section 21 is placed inside the ring section 221 while aligning the positions of the notches 24 of the flange 23 of the expansion blade section 21 with the positions of the second and third positioning sections 226, 229 of the ring section 221. Then, the ring section 221 is rotated relative to the fixed base 22.

[0027] In this state, each first positioning portion 223 abuts against the outer peripheral end surface of the flange 23 of the expansion blade portion 21, thereby positioning the expansion blade portion 21 in the radial direction. At the same time, each second positioning portion 226 abuts against the notched portion 24 of the flange 23 of the expansion blade portion 21, thereby positioning the expansion blade portion 21 in the circumferential direction. Furthermore, each third positioning portion 229 abuts against the upper surface of the flange 23 of the expansion blade portion 21, thereby positioning the expansion blade portion 21 in the axial direction.

[0028] 1, the conveying unit 3 conveys the extension blade unit 21 held by the holding unit 31 between the processing station 2 and the foreign matter removal station 4. The conveying unit 3 has a movement mechanism made up of rails or the like that can move the holding unit 31 to any position. The holding unit 31 has a holding mechanism that holds the extension blade unit 21 and an extension / retraction mechanism that extends and retracts the holding mechanism in the vertical direction.

[0029] For example, suppose that the first extension blade unit 21A is arranged in the processing station 2 and the second extension blade unit 21B is arranged in the foreign matter removal station 4. First, the conveying unit 3 lifts the first extension blade unit 21A, for which the above-mentioned forming process has been completed, from the processing station 2 and temporarily retracts it (1 → 2). In this state, the conveying unit 3 lifts the second extension blade unit 21B, for which foreign matter removal has been completed, from the foreign matter removal station 4 and transports it to the processing station 2 (1 → 2 → 3). Thereafter, the conveying unit 3 simultaneously moves the second extension blade unit 21B, for which the above-mentioned forming process has been completed, and the temporarily retracted first extension blade unit 21A toward the foreign matter removal station 4 (5 → 6).

[0030] 5 is a perspective view showing the configuration of the holding part 31. The holding part 31 has a main body part 32, and a first fixing pin 33 and a second fixing pin 34 provided on the main body part 32.

[0031] The first fixing pin 33 has an upper end connected to the main body 32 and extends in the vertical direction. The first fixing pin 33 passes through a through-hole formed in the flange 23 of the expansion blade section 21 in the Y-axis direction. The first fixing pin 33 restricts rotation of the expansion blade section 21 around the Z-axis. For example, two first fixing pins 33 are erected on the main body 32, but this is not limited thereto, and for example, one or three first fixing pins 33 may be erected.

[0032] 5, the holding portion 31 holds the expansion blade portion 21 with the first fixing pin 33 axially passing through the through-holes in the flanges 23 of the first and second expansion blades 211, 212. The through-holes may be round. The first fixing pin 33 can maintain the gap between the first and second expansion blades 211, 212 at approximately 0.5 mm.

[0033] The second fixing pins 34 are provided on the main body 32 so as to be able to expand and contract in the radial direction. The second fixing pins 34 are expanded and contracted in the radial direction by, for example, an actuator. A pair of second fixing pins 34 are provided on the main body 32 at diagonal corners.

[0034] Fig. 6 is a side view of the holding part. When the second fixing pin 34 is in the extended state as shown in Fig. 6, it passes through a through-hole formed in the side surface of the expansion blade part 21. As a result, the second fixing pin 34 restricts the rotation of the expansion blade part 21 around the Y axis and the movement in the Y direction.

[0035] For example, as shown in FIG. 6, the holding portion 31 holds the expansion blade portion 21 when the second fixing pin 34 is in an extended state and passes radially through the through holes in the side surfaces of the first and second expansion blades 211, 212.

[0036] As described above, the holding unit 31 can hold the first and second expansion blades 211, 212 while maintaining a constant gap between them by restricting the rotation of the first and second expansion blades 211, 212 about the Y-axis and Z-axis and the movement in the Y-axis direction using the first and second fixing pins 33, 34. The transport unit 3 then transports the first and second expansion blades 211, 212 held by the holding unit 31 in this manner.

[0037] The foreign matter removal station 4 removes foreign matter from the expansion blade portion 21 transported by the transport portion 3 as described above.

[0038] As shown in Figure 2(a), during the molding process of inserting the extension blade portion 21 between the segment coils 101, the extension blade portion 21 rubs against the tip portion, causing foreign matter such as burrs to be generated, and this foreign matter may adhere to the tip portion.

[0039] The foreign matter removal station 4 removes foreign matter that has adhered to the extension blade portion 21 during the above-mentioned molding process from the extension blade portion 21. The foreign matter removal station 4 removes foreign matter, for example, by blowing air onto the extension blade portion 21 using an air blower or by pressing a brush against the extension blade portion 21.

[0040] As described above, the processing system 1 according to this embodiment includes a processing station 2 that forms the tip portion 102 of the segment coil 101 by inserting the tip portion of the cylindrical extension blade portion 21 between the segment coils 101, a transport unit 3 that transports the extension blade portion 21 held by a holder 31 between the processing station 2 and a foreign matter removal station 4, and a foreign matter removal station 4 that removes foreign matter from the extension blade portion 21 transported by the transport unit 3. The rear end of the extension blade portion 21 is formed with a flange portion 23 that protrudes outward. The processing station 2 is provided with a fixed base 22 for fixing the extension blade portion 21. The fixed base 22 is provided with an annular ring portion 221 that is rotatable relative to the fixed base 22, and the flange portion 23 of the extension blade portion 21 is inserted into the ring portion 221. The ring portion 221 is provided with a first positioning portion 223 that abuts against the outer peripheral end surface of the flange portion 23 of the expansion blade portion 21 to position the expansion blade portion 21 radially, a second positioning portion 226 that abuts against the cutout portion 24 of the flange portion 23 of the expansion blade portion 21 to position the expansion blade portion 21 circumferentially, and a third positioning portion 229 that abuts against the side surface of the flange portion 23 of the expansion blade portion 21 to position the expansion blade portion 21 axially.

[0041] According to the processing system of this embodiment, the extension blade unit 21 can be easily fixed to the fixing base 22 of the processing station 2 by the first to third positioning units 223, 226, 229. In other words, it is possible to easily install the extension blade unit 21 in the processing station 2 after removing foreign matter.

[0042] Although several embodiments of the present disclosure have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0043] 1 Processing system, 2 Processing station, 3 Conveyor section, 4 Foreign matter removal station, 21 Extended blade section, 22 Fixing base, 23 Flange section, 24 Notch section, 31 Holding section, 32 Main body section, 33 First fixing pin, 34 Second fixing pin, 100 Stator core, 101 Segment coil, 102 Tip section, 211 First extended blade, 212 Second extended blade, 213 Third extended blade, 221 Ring section, 222 Lever, 223 First positioning section, 224 Roller section, 225 Support section, 226 Second positioning section, 227 Roller section, 228 Support section, 229 Third positioning section, 230 Roller section, 231 Support section

Claims

1. a processing station that forms the tip of the segment coil by inserting the tip of the cylindrical expansion blade portion between the segment coils; a conveying unit that conveys the expansion blade unit between the processing station and the foreign matter removing station while holding the expansion blade unit by a holding unit; a foreign matter removal station that removes foreign matter from the expansion blade portion transported by the transport unit; Equipped with The rear end of the extended blade portion is formed with a flange portion that protrudes outward, The processing station is provided with a fixing table for fixing the extension blade portion, The fixed base is provided with an annular ring portion that is rotatable relative to the fixed base, and a flange portion of the expansion blade portion is inserted into the ring portion, The ring portion is provided with a first positioning portion that abuts against the outer peripheral end surface of the flange of the expansion blade portion to position the expansion blade portion in the radial direction, a second positioning portion that abuts against the notched portion of the flange of the expansion blade portion to position the expansion blade portion in the circumferential direction, and a third positioning portion that abuts against the side surface of the flange of the expansion blade portion to position the expansion blade portion in the axial direction. Processing system.

2. 2. The processing system according to claim 1, The holding portion of the conveying portion has a first fixing pin that passes through a through hole formed in the flange portion of the expansion blade portion, and a second fixing pin that passes through a through hole formed in the side surface of the expansion blade portion and is extendable and retractable, and the expansion blade portion is held by the first and second fixing pins. Processing system.

3. 3. The processing system according to claim 2, the expansion blade unit has a first expansion blade having a cylindrical shape and a second expansion blade having a cylindrical shape arranged outside the first expansion blade, or has the first expansion blade, the second expansion blade, and a third expansion blade having a cylindrical shape arranged outside the second expansion blade; The holding portion holds the expansion blade portion when the first fixing pin passes axially through the through-hole in the flange portion of the first and second expansion blades or the first to third expansion blades, and when the second fixing pin is extended and passes radially through the through-hole in the side surface of the first and second expansion blades or the first to third expansion blades. Processing system.

4. a processing station that forms the tip of the segment coil by inserting the tip of the cylindrical expansion blade portion between the segment coils; a conveying unit that conveys the expansion blade unit between the processing station and the foreign matter removing station while holding the expansion blade unit by a holding unit; a foreign matter removal station that removes foreign matter from the expansion blade portion transported by the transport unit; A processing method for a processing system comprising: The rear end of the extended blade portion is formed with a flange portion that protrudes outward, The processing station is provided with a fixing table for fixing the extension blade portion, The fixed base is provided with an annular ring portion that is rotatable relative to the fixed base, and a flange portion of the expansion blade portion is inserted into the ring portion, The first positioning portion of the ring portion abuts against the outer peripheral end surface of the flange portion of the expansion blade portion, thereby positioning the expansion blade portion in the radial direction; the second positioning portion abuts against the notched portion of the flange portion of the expansion blade portion, thereby positioning the expansion blade portion in the circumferential direction; and the third positioning portion abuts against the side surface of the flange portion of the expansion blade portion, thereby positioning the expansion blade portion in the axial direction. Processing method.

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