A refined stator copper wire expansion clamping mechanism

Abstract

The present invention discloses a refined stator copper wire flaring clamping mechanism, comprising a wire protection barrel for placing a stator core; a plurality of flaring assemblies for clamping the copper wire at the end of the stator core; a driving assembly for driving the plurality of flaring assemblies to synchronously move along the radial direction of the wire protection barrel, and causing the flaring assemblies to drive the copper wire at the end of the stator core to separate; and a rotating assembly for driving the driving assembly and the plurality of flaring assemblies to rotate simultaneously. The present invention has the advantage of performing refined flaring of the stator copper wire.

Description

Technical Field

[0001] The invention belongs to the technical field of stator copper wire expansion, and relates to a refined stator copper wire expansion clamping mechanism. Background Art

[0002] In the stator of an electric motor or generator, copper wire is wound into coils to generate a magnetic field. During assembly, the ends of the stator coils need to be processed into a suitable shape to connect to other parts inside the motor or for electrical insulation.

[0003] A Chinese utility model patent with authorization publication number CN219718058U discloses a stator coil expanding machine, comprising a frame on which a feeding device, an expanding device, and a ferrying manipulator are mounted. The ferrying manipulator comprises a ferrying slide, a sliding motor, a lifting frame, a lifting motor, an expansion assembly, and a wire protection mechanism. The sliding direction of the ferrying slide is the same as the arrangement direction of the feeding device and the expanding device. This technical solution, by providing a wire protection mechanism, can use the wire protection mechanism to clamp the copper wire during the expanding operation to prevent the copper wire from being pulled out or shifted from the wire slot of the stator core, resulting in a relatively high product qualification rate. At the same time, the expansion assembly is surrounded by the wire protection mechanism, which not only allows the wire protection mechanism to clamp the copper wire of the stator coil when transporting the stator coil, but also allows the expansion assembly to position the stator coil during the expanding operation without the need for a separate positioning device. However, this technical solution has limited control over the precision of the expansion device, and the copper wire may be damaged during the expansion of the stator coil. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a refined stator copper wire expansion clamping mechanism, which effectively solves the problems in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a refined stator copper wire flaring clamping mechanism, comprising a wire barrel for placing the stator core; a driving assembly for driving multiple flaring assemblies to synchronously move along the radial direction of the wire barrel; and a rotating assembly for driving the driving assembly and the multiple flaring assemblies to rotate simultaneously;

[0006] The flaring assembly is arranged in an annular array concentric with the wire protection barrel and located outside the wire protection barrel. The flaring assembly includes a fixed base arranged on a rotating assembly, a base plate slidably connected to the upper side of the fixed base, a push rod stepping motor arranged on the side of the base plate, a slider slidably connected to the side of the base plate away from the end of the wire protection barrel, a support arranged on the side of the base plate, a clamping claw scissors hinged on the upper side of the support, and a single clamping claw detachably connected to the end of the clamping claw scissors near the wire protection barrel. The support is located on the side of the push rod stepping motor near the wire protection barrel, an adjustment block is provided on the upper side of the slider, an "eight"-shaped adjustment slot is provided on the upper side of the adjustment block, an adjustment column slidably connected in the adjustment slot is provided on the end of the clamping claw scissors near the adjustment block, and the opposite sides of the two single clamping claws near the end of the wire protection barrel are both provided with baffles, the base plate and the slider side are provided with a sensing component for controlling the pushing and retracting distance of the push rod stepping motor, and the end of the base plate away from the wire protection barrel is connected to the driving component.

[0007] Furthermore, the rotating assembly includes a wire guard base arranged on the lower side of the wire guard base, a motor arranged on the lower side of the wire guard base, a rotating main disk arranged on the upper side of the motor, a slewing bearing arranged on the rotating main disk, a mounting disk arranged on the upper side of the rotating main disk, and a base arranged on the lower side of the motor. The motor is a hollow structure, and the lower side of the wire guard base is connected and fixed to the base through the motor. A plurality of annular arrays of the fixed bases and the mounting disk are coaxially arranged on the upper side of the mounting disk. The driving assembly is arranged on the lower side of the rotating main disk. The rotating main disk, mounting disk, slewing bearing, motor and base are all coaxially arranged with the wire guard.

[0008] Furthermore, the drive assembly includes a mounting plate, a screw fixing block, a screw supporting block, a drive disk arranged on a rotary bearing, a servo motor arranged on the mounting plate, and a screw rotatably connected to the opposite sides of the screw fixing block and the screw supporting block. The mounting plate, the screw fixing block and the screw supporting block are all arranged on the lower side of the rotating main disk. One end of the screw passes through the screw supporting block and the mounting plate and is connected to the output end of the servo motor. A nut fixing seat is provided on the threaded sleeve of the screw, and a guide rod is provided on the opposite sides of the screw fixing block and the screw supporting block. The nut fixing seat is slidably connected to the guide rod, and a plurality of arc grooves arranged in a circular array are opened on the upper side of the driving disk and the concentric circle thereof, and the arc grooves are all inclined. A first cam follower is provided at one end of the lower side of the base plate away from the wire guard tube, and the lower end of the first cam follower is slidably connected in the arc groove, and a second cam follower is provided on the upper side of the nut fixing seat, and a limiting block is provided on the lower side of the driving disk, and an elliptical following groove is opened on the limiting block, and the upper end of the second cam follower is slidably connected in the following groove.

[0009] Furthermore, the rotating main disk is provided with an arc-shaped limiting slot, and the limiting block is provided with a protrusion sliding in the limiting slot at one end close to the rotating main disk.

[0010] Furthermore, the upper end surface of the single clamping jaw is provided with a quick-change clamp that can be quickly connected to the clamping jaw scissors.

[0011] Furthermore, the circumferential side of the wire guard is provided with a plurality of tooth guards integrally formed therewith and distributed in a circular array, the upper side of the tooth guard is flush with the upper side of the wire guard, and the end of the single clamping jaw close to the wire guard is located below the tooth guard.

[0012] Furthermore, the sensing component includes a fixed plate arranged on the side of the slider, a "7"-shaped sensing strip is arranged on the side of the fixed plate away from the slider, and two front and rear slot-shaped photoelectric strips are linearly arranged on the side of the bottom plate, and the sensing strip can move between the two slot-shaped photoelectric strips.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention realizes fine separation and flaring of the stator core end through the flaring component and the driving component, improves the accuracy of the flaring jaw mechanism in flaring the copper wire at the stator core end, realizes adjustment of the position of the flaring component and the driving component through the rotating component, so that the flaring jaw mechanism can flare and separate the copper wires of iron cores of different specifications, improves the practicality of the flaring jaw mechanism, realizes control of the pushing distance of the push rod stepping motor through the sensing component, and ensures the reliability of the flaring jaw mechanism when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the present invention;

[0016] Figure 2 It is a partial structural diagram of the expansion mechanism of the present invention;

[0017] Figure 3 This is a schematic diagram of the exploded structure of the rotating assembly of the present invention;

[0018] Figure 4 It is a schematic diagram of the overall structure of the expansion assembly of the present invention;

[0019] Figure 5 This is a schematic diagram of the top view of the adjustment block of the present invention;

[0020] Figure 6 This is a schematic diagram of the overall structure of two single clamping jaws of the present invention;

[0021] Figure 7 This is a schematic diagram of the exploded structure of the rotating assembly and the driving assembly of the present invention;

[0022] Figure 8 It is a schematic diagram of the matching structure of the limit block and the nut fixing seat of the present invention.

[0023] In the figure, 1, wire drum; 2, driving plate; 3, flaring assembly; 4, driving assembly; 5, wire drum base; 6, rotating main plate; 7, slewing bearing; 8, motor; 9, base; 10, mounting plate; 201, arc groove; 301, fixed base; 302, slide rail; 303, bottom plate; 304, support; 305, push rod stepper motor; 306, slider; 307, adjustment block; 308, clamping claw scissors; 309, single clamping claw; 310, quick change clamp; 3 11. First cam follower; 312. Adjusting column; 313. Adjusting slide; 314. Stop bar; 315. Fixing plate; 316. Sensing bar; 317. Slot-type photoelectric; 402. Servo motor; 403. Screw support block; 404. Mounting plate; 405. Second cam follower; 406. Nut fixing seat; 407. Guide rod; 408. Screw; 409. Screw fixing block; 410. Follower slot; 411. Limit block; 601. Limit notch. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-8 As shown, a refined stator copper wire flaring clamping mechanism includes a wire barrel 1 for placing the stator core; a driving assembly 4 for driving multiple flaring assemblies 3 to move synchronously along the radial direction of the wire barrel 1; and a rotating assembly for driving the driving assembly 4 and the multiple flaring assemblies 3 to rotate simultaneously.

[0026] A plurality of flaring assemblies 3 are arranged in an annular array coaxial with the wire protection barrel 1 on the outside of the wire protection barrel 1. The flaring assembly 3 includes a fixed base 301 arranged on a rotating assembly, a base plate 303 slidably connected to the upper side of the fixed base 301 through a slide rail 302, a push rod stepper motor 305 fixed to the upper side of the base plate 303 by bolts, a slider 306 slidably connected to the upper side of the base plate 303 away from the end of the wire protection barrel 1, a support 304 fixed to the upper side of the base plate 303 by bolts, a clamping claw scissors 308 hinged on the upper side of the support 304, and two single clamping claws 309 detachably connected to the clamping claw scissors 308 near the two ends of the wire protection barrel 1. The support 304 is located at the push rod stepper motor 30 On the side close to the wire protection drum 1, an adjustment block 307 is mounted on the upper side of the slider 306 via bolts. An "eight"-shaped adjustment slot 313 is provided on the upper side of the adjustment block 307. The spacing between the adjustment slots 313 on the side close to the wire protection drum 1 is smaller than that on the side away from the wire protection drum. Adjustment columns 312 slidably connected to the adjustment slots 313 are fixed to both ends of the clamping jaws 308 close to the adjustment block 307 via bolts. Baffles 314 are provided on the opposite sides of the two single clamping jaws 309 close to the end of the wire protection drum 1. Induction components for controlling the pushing and retracting distance of the push-rod stepping motor 305 are provided on the sides of the bottom plate 303 and the slider 306. The end of the bottom plate 303 away from the wire protection drum 1 is connected to the drive assembly 4.

[0027] When in use, the staff places the iron core on the wire protection barrel 1 and inserts the copper wire at the end of the iron core into the wire protection barrel 1. Then, the staff controls the driving component 4 to move the flaring component 3 along the radial extension line of the wire protection barrel 1 toward the center of the wire protection barrel 1. When the two single clamping jaws 309 move to the copper wire at the end of the iron core, the staff controls the push-rod stepping motor 305 to push the slider 306 away from the wire protection barrel 1, so that the adjustment column 312 slides along the adjustment slide groove 313, so that the clamping jaws scissors 308 are close to each other at the two ends of the slider 306, so that the two single clamping jaws 309 are separated from each other. Then, the staff controls the push-rod stepping motor 305 to push the slider 306 towards the wire protection barrel 1. The two single clamps 309 are brought close to each other, and the copper wire at the end of the iron core is clamped between the two single clamps 309. Under the action of the blocking bar 314, the two single clamps 309 can pull the copper wire at the end of the iron core to move. Then the staff controls the driving component 4 to move the flaring component 3 along the radial extension line of the wire protection tube 1 in the direction away from the wire protection tube 1, so that the flaring component 3 pulls the copper wire at the end of the iron core outward, thereby achieving the purpose of final separation and flaring. According to the specifications of the iron core, the rotating component can drive all the flaring components 3 to rotate and move, thereby flaring other copper wires that have not been separated and flared in the radial direction. When separating the copper wires at the end of the iron core, two layers of copper wires are flared and separated as a group from the outside to the inside.

[0028] In this embodiment, the rotating assembly includes a wire drum base 5 fixed to the lower side of the wire drum 1 by bolts, a motor 8 located on the lower side of the wire drum base 5, a rotating main disk 6 fixed to the upper side of the motor 8 by bolts, a slewing bearing 7 fixed to the rotating main disk 6 by bolts, a mounting disk 10 fixed to the upper side of the rotating main disk 6 by bolts, and a base 9 fixed to the lower side of the motor 8 by bolts. The motor 8 is a hollow structure. The lower side of the wire drum base 5 passes through the motor 8 and is connected and fixed to the base 9. A plurality of fixed bases 301 are arranged in a circular array concentric with the mounting disk 10 by bolts on the upper side of the mounting disk 10. The driving assembly 4 is arranged on the lower side of the rotating main disk 6. The rotating main disk 6, the mounting disk 10, the slewing bearing 7, the motor 8 and the base 9 are all arranged coaxially with the wire drum 1. When in use, the staff controls the motor 8 to drive the rotating main disk 6 to rotate. When the rotating main disk 6 rotates, the mounting disk 10 rotates synchronously, thereby adjusting the position of the flaring assembly 3 to facilitate the staff to flare the end copper wires of iron cores of different specifications.

[0029] In this embodiment, the drive assembly 4 includes a mounting plate 404, a screw fixing block 409, a screw support block 403, a drive disk 2 fixed to the rotary bearing 7 by bolts, a servo motor 402 mounted on the mounting plate 404 by bolts, and a screw 408 rotatably connected to the opposite sides of the screw fixing block 409 and the screw support block 403 through a bearing. The mounting plate 404, the screw fixing block 409 and the screw support block 403 are fixed to the lower side of the rotating main disk 6 by bolts. One end of the screw 408 passes through the screw support block 403 and the mounting plate 404 and is connected to the output end of the servo motor 402. A nut fixing seat 406 is provided on the threaded sleeve of the screw 408. The screw fixing block 409 is connected to the screw A guide rod 407 is provided on the opposite side of the support block 403, and the nut fixing seat 406 is slidably connected to the guide rod 407. A plurality of arc-shaped grooves 201 arranged in a circular array are provided on the upper side of the driving disk 2 and the same circle as the center thereof. A first cam follower 311 is installed on the end of the lower side of the bottom plate 303 away from the wire retaining tube 1 through a bolt. The lower end of the first cam follower 311 is slidably connected in the arc-shaped groove 201. A second cam follower 405 is installed on the upper side of the nut fixing seat 406 through a bolt. A limit block 411 is installed on the lower side of the driving disk 2 through a bolt. An elliptical follower groove 410 is provided on the limit block 411. The upper end of the second cam follower 405 is slidably connected in the follower groove 410.

[0030] During use, the servo motor 402 drives the lead screw 408 to rotate, and under the action of the thread, the nut fixing seat 406 moves repeatedly along the guide rod 407 on the lead screw 408. At the same time, the limit block 411 can move with the nut fixing seat 406, and rotates while moving with the nut fixing seat 406 under the action of the second cam follower 405, thereby driving the driving disk 2 to rotate repeatedly. While the driving disk 2 rotates repeatedly, the first cam follower 311 slides along the arc groove 201, thereby driving the flaring assembly 3 to move back and forth in the radial direction of the driving disk 2, thereby realizing that the flaring assembly 3 drives the copper wire at the end of the iron core to flare and separate.

[0031] In this embodiment, an arc-shaped limiting slot 601 is provided through the rotating main disk 6, and a protrusion that rotates in the limiting slot 601 is provided at one end of the limiting block 411 close to the rotating main disk 6. When in use, the limiting slot 601 and the protrusion can limit the rotation angle of the driving disk 2 to prevent the driving disk 2 from rotating too much, thereby causing damage to the flaring component 3 and the driving component 4, thereby ensuring the reliability of the flaring clamping mechanism when in use.

[0032] In this embodiment, the upper end surface of the single clamp 309 is provided with a quick-change clamp 310 that can be quickly connected to the clamp scissors 308. When in use, the staff can quickly replace the single clamp 309 through the quick-change clamp 310, thereby improving the work efficiency of the staff.

[0033] In this embodiment, the circumferential side of the wire guard 1 is provided with a plurality of guard teeth which are integrally formed therewith and distributed in a circular array. The upper side of the guard teeth is flush with the upper side of the wire guard 1. The single clamping jaw 309 is located below the guard teeth near one end of the wire guard 1. When the iron core is placed, the copper wire at the end of the iron core is inserted between two adjacent guard teeth, so that it is convenient for the flaring assembly 3 to clamp the copper wire for flaring. When in use, the wire guard 1 can be replaced according to the different specifications of the iron core to improve the practicality of the flaring jaw mechanism.

[0034] In this embodiment, the sensing assembly includes a fixed plate 315 installed on the side of the slider 306 by bolts, and a "7"-shaped sensing bar 316 is installed on the side of the fixed plate 315 away from the slider 306 by bolts. Two front and rear slot-shaped photoelectric devices 317 are linearly arranged on the side of the bottom plate 303. The sensing bar 316 can move between the two slot-shaped photoelectric devices 317. The two slot-shaped photoelectric devices 317 are electrically connected to the push-rod stepper motor 305. When in use, when the push-rod stepper motor 305 pushes the slider 306 to slide back and forth on the bottom plate 303, the sensing bar 316 moves between the two slot-shaped photoelectric devices 317, thereby controlling the distance that the push-rod stepper motor 305 pushes the slider 306 to move, thereby preventing the adjustment column 312 from disengaging from the adjustment slot 313, thereby ensuring the reliability of the flaring assembly 3 when in use.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refined stator copper wire expansion clamping mechanism, characterized by: include The wire barrel is used to place the stator core; A driving assembly, used for driving the plurality of flaring assemblies to move synchronously along the radial direction of the wire guard barrel; A rotating assembly, used for driving the driving assembly and the plurality of flaring assemblies to rotate simultaneously; The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The tooth on the attachment piece is meshed with tooth on upper sprocket.

2. The refined stator copper wire expansion clamping mechanism according to claim 1, characterized in that: The rotating assembly includes a wire guard base arranged on the lower side of the wire guard base, a motor arranged on the lower side of the wire guard base, a rotating main disk arranged on the upper side of the motor, a slewing bearing arranged on the rotating main disk, a mounting disk arranged on the upper side of the rotating main disk, and a base arranged on the lower side of the motor. The motor is a hollow structure, and the lower side of the wire guard base is connected and fixed to the base through the motor. A plurality of annular arrays of the fixed bases and the mounting disk are coaxially arranged on the upper side of the mounting disk. The driving assembly is arranged on the lower side of the rotating main disk. The rotating main disk, mounting disk, slewing bearing, motor and base are all coaxially arranged with the wire guard.

3. The refined stator copper wire expansion clamping mechanism according to claim 2, characterized in that: The drive assembly includes a mounting plate, a screw fixing block, a screw supporting block, a driving disk arranged on a rotary bearing, a servo motor arranged on the mounting plate, and a screw rotatably connected to the screw fixing block and the opposite sides of the screw supporting block. The mounting plate, the screw fixing block and the screw supporting block are all arranged on the lower side of the rotating total disk. One end of the screw passes through the screw supporting block and the mounting plate and is connected to the output end of the servo motor. A nut fixing seat is provided on the threaded sleeve of the screw. A guide rod is provided on the opposite side of the screw fixing block and the screw supporting block. The nut fixing seat is slidably connected to the guide rod, and a plurality of arc grooves arranged in a circular array are provided on the upper side surface of the driving disk and the same circle center thereof. The arc grooves are all inclined. A first cam follower is provided on the end of the lower side surface of the base plate away from the wire guard tube, and the lower end of the first cam follower is slidably connected in the arc groove, and a second cam follower is provided on the upper side surface of the nut fixing seat, and a limiting block is provided on the lower side surface of the driving disk, and an elliptical following groove is provided on the limiting block, and the upper end of the second cam follower is slidably connected in the following groove.

4. The refined stator copper wire expansion clamping mechanism according to claim 3, characterized in that: The rotating main disk is provided with an arc-shaped limiting slot, and the limiting block is provided with a protrusion sliding in the limiting slot at one end close to the rotating main disk.

5. The refined stator copper wire expansion clamping mechanism according to claim 1, characterized in that: The upper end surface of the single clamping jaw is provided with a quick-change clamp that can be quickly connected to the clamping jaw scissors.

6. The refined stator copper wire expansion clamping mechanism according to claim 1, characterized in that: The circumferential side of the wire guard is provided with a plurality of tooth guards which are integrally formed therewith and distributed in a circular array. The upper side of the tooth guard is flush with the upper side of the wire guard, and the end of the single clamping claw close to the wire guard is located below the tooth guard.

7. The refined stator copper wire expansion clamping mechanism according to claim 1, characterized in that: The sensing component includes a fixed plate arranged on the side of the slider, and a "7"-shaped sensing strip is arranged on the side of the fixed plate away from the slider. Two front and rear slot-shaped photoelectric devices are linearly arranged on the side of the bottom plate, and the sensing strip can move between the two slot-shaped photoelectric devices.

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