A device for twisting the flat wire at the end of the stator of a flat wire motor

Abstract

The present invention provides a device for twisting a flat wire at the stator end of a flat wire motor, comprising a frame, a drive mechanism, a twisting mechanism, a lifting mechanism, and a stator positioning mechanism. The drive mechanism is mounted on the frame, the twisting mechanism is connected to the drive mechanism, one end of the lifting mechanism is connected to the frame, and the other end is connected to the twisting mechanism. The lifting mechanism is located above the twisting mechanism, and the stator positioning mechanism is located above the twisting mechanism and connected to the frame. The present invention has the following advantages: a simple and compact structure, easy operation, no need for an electrical control system, low cost, and a high twisting success rate.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic assembly equipment for stators of flat wire motors for new energy vehicles, and in particular to a device for twisting flat wires at the ends of stators of flat wire motors. Background Art

[0002] With the intensification of environmental and energy problems, the development of new energy vehicles has received attention from all countries and has become the future development direction of the global automotive industry. The drive motor is one of the core components of new energy vehicles. During the assembly process of the drive motor, twisting and forming the flat wire at the end of the motor stator is a very important production process.

[0003] Due to the requirement for power density, the number of flat wire layers in the drive motors of new energy vehicles is increasing, and the corresponding flat wire slots in the mold have also increased exponentially. During the twisting process, if one flat wire cannot be inserted into the mold, the twisting will fail and the entire stator product will be scrapped. The large number of flat wire layers greatly increases the difficulty of twisting.

[0004] Existing technical solutions are mostly automatic machines or semi-automatic equipment. The stator is in a positioning fixture, and a robot clamps the stator to insert multiple layers of stator flat wires into the mold slot at one time, and then performs the flat wire twisting process. This technical solution is mostly aimed at stators with a small number of flat wire layers, mostly 2 to 4 layers of flat wire. If the number of stator flat wire layers increases, the technical solution needs to be greatly modified to cope with it, and its flexibility is poor. Moreover, as the number of flat wire layers increases, the number of flat wires inserted into the mold slot by the equipment increases exponentially, and the risk of the flat wire not being inserted into the mold also increases exponentially. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention discloses a device for twisting the flat wire at the end of the stator of a flat wire motor. The technical solution of the present invention is implemented as follows:

[0006] A device for twisting the flat wire at the stator end of a flat wire motor comprises a frame, a drive mechanism, a twisting mechanism, a lifting mechanism and a stator positioning mechanism, wherein the drive mechanism is arranged on the frame, the twisting mechanism is connected to the drive mechanism, one end of the lifting mechanism is connected to the frame, and the other end is connected to the twisting mechanism, the lifting mechanism is located above the twisting mechanism, and the stator positioning mechanism is located above the twisting mechanism and connected to the frame.

[0007] Preferably, the lifting mechanism is slidably connected to the twisting mechanism, and the stator positioning mechanism is slidably connected to the frame.

[0008] Preferably, the rack includes supporting legs, a base plate, pillars and a supporting plate; the supporting legs are mounted on the base plate, the pillars are arranged on the base plate, and the supporting plate is arranged on the pillars.

[0009] Preferably, the driving mechanism includes a driving source, a reducer, a mounting seat and a driving gear; the mounting seat is arranged on the frame and fixedly connected to the reducer, one end of the reducer is connected to the driving source, and the other end is connected to the driving gear.

[0010] Preferably, the driving source is a driving motor or a driving handle.

[0011] Preferably, the twisting mechanism includes a base, a support shaft, an inner ring driven gear, an outer ring driven gear, an inner ring bearing, an outer ring bearing, an inner ring rotating shaft, an outer ring rotating shaft, an inner ring mounting seat, an outer ring mounting seat and a guide sleeve; the base is mounted on the bottom plate, the support shaft is fixedly connected to the base, the inner ring bearing is arranged on the support shaft, the inner ring rotating shaft is mounted on the inner ring bearing, the inner ring driven gear is mounted on the inner ring rotating shaft, the inner ring mounting seat is mounted on the inner ring rotating shaft, the outer ring bearing is arranged on the inner ring rotating shaft, the outer ring rotating shaft is arranged on the outer ring bearing, the outer ring driven gear is arranged on the outer ring rotating shaft, the outer ring base is arranged on the outer ring rotating shaft, and the guide sleeve is arranged on the inner ring mounting seat and the outer ring mounting seat.

[0012] Preferably, the lifting mechanism includes an inner mold guide shaft, an inner mold mounting plate, an inner mold support seat, a cam follower, an inner mold lifting cam, an outer mold lifting cam, an outer mold guide shaft, an outer mold mounting plate, an outer mold support seat, an inner mold and an outer mold; the inner mold guide shaft and the outer mold guide shaft are respectively slidably connected with the guide shaft sleeve, the inner mold mounting plate is fixedly connected with the inner mold guide shaft, the outer mold mounting plate is fixedly connected with the outer mold guide shaft, the inner mold support seat is arranged on the inner mold mounting plate, the outer mold support seat is arranged on the outer mold mounting plate, the cam follower is installed on the inner mold support seat and the outer mold support seat and cooperates with the inner mold lifting cam and the outer mold lifting cam, the inner mold is installed on the inner mold mounting plate, the outer mold is installed on the outer mold mounting plate, and the inner mold lifting cam and the outer mold lifting cam are installed on the support plate.

[0013] Preferably, the stator positioning mechanism includes a positioning support column, a positioning guide shaft, a positioning guide sleeve, a positioning mounting plate, a positioning bearing, a stator fixing mechanism, a handle, a screw and a rotary handle; the positioning support column is fixedly connected to the support plate, one end of the positioning guide shaft is connected to the positioning support column, and the other end passes through the positioning guide sleeve, the positioning guide sleeve is arranged on the positioning mounting plate, the positioning bearing is installed on the positioning mounting plate, the handle, the screw and the rotary handle are arranged on the positioning mounting plate, and the stator fixing mechanism is connected to the positioning mounting plate.

[0014] The implementation of the technical solution of the present invention can solve the technical problems in the prior art such as high failure rate of flat wire twisting, high cost, poor adaptability when the number of flat wire layers is changed, and easy inability to insert the flat wire into the mold; the implementation of the technical solution of the present invention can achieve the twisting process of multi-layer flat wires at a lower cost by replacing the flat wire twisting mold and cam, and can be operated manually or automatically, with high flexibility and high twisting success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is the front view of the present invention;

[0019] Figure 3 It is a right side view of the present invention;

[0020] Figure 4 A top view of the present invention;

[0021] Figure 5 It is a rear view of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the device for inserting a flat wire into the present invention;

[0023] Figure 7 This is a schematic diagram of the flat wire before twisting;

[0024] Figure 8 This is a schematic diagram of the flat wire after twisting.

[0025] In the above drawings, the figure numbers represent:

[0026] 1. Rack

[0027] 1-1, support foot 1-2, base plate 1-3, support 1-4, support plate

[0028] 2. Driving mechanism

[0029] 2-1, driving source 2-2, speed reducer 2-3, mounting base 2-4, driving gear

[0030] 3. Twisting mechanism

[0031] 3-1, base 3-2, support shaft 3-3, inner ring driven gear 3-4, outer ring driven gear 3-5, inner ring rotating shaft 3-6, outer ring rotating shaft 3-7, inner ring mounting seat 3-8 outer ring mounting seat 3-9 guide sleeve

[0032] 4. Lifting mechanism

[0033] 4-1, inner mold guide shaft 4-2, inner mold mounting plate 4-3, inner mold support seat

[0034] 4-4, cam follower 4-5, inner mold lifting cam 4-6, outer mold lifting cam

[0035] 4-7, outer mold guide shaft 4-8, outer mold mounting plate 4-9, outer mold support seat

[0036] 4-10, inner mold 4-11, outer mold

[0037] 5. Stator positioning mechanism

[0038] 5-1 positioning support column 5-2, positioning guide shaft 5-3, positioning guide sleeve

[0039] 5-4, positioning mounting plate 5-5, positioning bearing 5-6, stator fixing mechanism

[0040] 5-7, handle 5-8, screw 5-9, rotary handle

[0041] 100, flat wire

[0042] 200, stator DETAILED DESCRIPTION

[0043] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] Example

[0045] In a specific embodiment, Figure 1 、 Figure 7 and Figure 8As shown, a device for twisting the flat wire at the stator end of a flat wire motor includes a frame 1, a driving mechanism 2, a twisting mechanism 3, a lifting mechanism 4 and a stator positioning mechanism 5. The driving mechanism 2 is arranged on the frame 1, the twisting mechanism 3 is connected to the driving mechanism 2, one end of the lifting mechanism 4 is connected to the frame 1, and the other end is slidably connected to the twisting mechanism 3. The lifting mechanism 4 is located on the upper part of the twisting mechanism 3, and the stator positioning mechanism 5 is located on the upper part of the twisting mechanism 3 and is slidably connected to the frame 1.

[0046] In this embodiment, the frame 1 is used to support and fix other structures, the driving mechanism 2 is used to provide power to the twisting mechanism 3, the lifting mechanism 4 and the stator positioning mechanism 5, the stator positioning mechanism 5 is used to position and insert the flat wire 100 in the stator 200 into the lifting mechanism 4, and the lifting mechanism 4 and the twisting mechanism 3 cooperate to realize the twisting of the flat wire.

[0047] First, each device is fixed and installed on the frame 1. The stator 200 is then positioned using the stator positioning mechanism 5. The stator 200 is then lowered by operating the stator positioning mechanism 5 so that the outermost flat wires 100 of the stator 200 are inserted into the lifting mechanism 4. The driving mechanism 2 is then manually or motor-controlled to operate the lifting mechanism 4 and the twisting mechanism 3, so that the flat wires 100 in the stator 200 are moved to the designated position of the lifting mechanism 4, completing the twisting process for the outermost adjacent flat wires 100. The operator then operates the stator positioning mechanism 5 to allow the flat wires 100 in the stator 200 to exit the twisting die in the lifting mechanism 4. Following the die switching procedure, the second set of twisting dies is switched, and the twisting process is repeated to complete the twisting process for the flat wires. The third, fourth, fifth, and sixth sets of twisting dies are then switched again, and the twisting process is repeated to complete the twisting process for all flat wires. This embodiment has a simple and compact structure and is easy to operate. The driving mechanism 2 can be manually operated, and the cost is low. This embodiment adopts a two-layer synchronous twisting method. Each time the twisting method is used, only two adjacent layers of flat wire need to be inserted, ensuring that the flat wire can be easily inserted into the mold, thereby improving the success rate of the twisting. This embodiment can replace the twisting mold to correspond to different flat wire layers. Two layers of flat wires are twisted synchronously each time. Theoretically, there is no limit to the number of layers of stator flat wire twisting. Currently, 12 layers of flat wires have been actually produced.

[0048] In a preferred embodiment, Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the rack 1 includes a support leg 1-1, a base plate 1-2, a pillar 1-3 and a support plate 1-4; the support leg 1-1 is installed on the base plate 1-2, the pillar 1-3 is arranged on the base plate 1-2, and the support plate 1-4 is arranged on the pillar 1-3.

[0049] The driving mechanism 2 includes a driving source 2-1, a reducer 2-2, a mounting seat 2-3 and a driving gear 2-4; the mounting seat 2-3 is arranged on the frame 1 and is fixedly connected to the reducer 2-2, one end of the reducer 2-2 is connected to the driving source 2-1, and the other end is connected to the driving gear 2-4.

[0050] The twisting mechanism 3 includes a base 3-1, a support shaft 3-2, an inner ring driven gear 3-3, an outer ring driven gear 3-4, an inner ring bearing, an outer ring bearing, an inner ring rotating shaft 3-5, an outer ring rotating shaft 3-6, an inner ring mounting seat 3-7, an outer ring mounting seat 3-8 and a guide sleeve 3-9; the base 3-1 is mounted on the bottom plate 1-2, the support shaft 3-2 is fixedly connected to the base 3-1, the inner ring bearing is arranged on the support shaft 3-2, the inner ring rotating shaft 3-5 is mounted on the inner The inner ring driven gear 3-3 is installed on the inner ring rotating shaft 3-5, the inner ring mounting seat 3-7 is installed on the inner ring rotating shaft 3-5, the outer ring bearing is arranged on the inner ring rotating shaft 3-5, the outer ring rotating shaft 3-6 is arranged on the outer ring bearing, the outer ring driven gear 3-4 is arranged on the outer ring rotating shaft 3-6, the outer ring base 3-1 is arranged on the outer ring rotating shaft 3-6, and the guide sleeve 3-9 is arranged on the inner ring mounting seat 3-7 and the outer ring mounting seat 3-8.

[0051] The lifting mechanism 4 includes an inner mold guide shaft 4-1, an inner mold mounting plate 4-2, an inner mold support seat 4-3, a cam follower 4-4, an inner mold lifting cam 4-5, an outer mold lifting cam 4-6, an outer mold guide shaft 4-7, an outer mold mounting plate 4-8, an outer mold support seat 4-9, an inner mold 4-10 and an outer mold 4-11; the inner mold guide shaft 4-1 and the outer mold guide shaft 4-7 are respectively slidably connected to the guide shaft sleeve 3-9, the inner mold mounting plate 4-2 is fixedly connected to the inner mold guide shaft 4-1, and the outer mold mounting plate 4-8 is fixedly connected to the outer mold guide shaft It is fixedly connected to the shaft 4-7, the inner mold support seat 4-3 is arranged on the inner mold mounting plate 4-2, the outer mold support seat 4-9 is arranged on the outer mold mounting plate 4-8, the cam follower 4-4 is installed on the inner mold support seat 4-3 and the outer mold support seat 4-9 and cooperates with the inner mold lifting cam 4-5 and the outer mold lifting cam 4-6, the inner mold 4-10 is installed on the inner film mounting plate, the outer mold 4-11 is installed on the outer mold mounting plate 4-8, and the inner mold lifting cam 4-5 and the outer mold lifting cam 4-6 are installed on the support plate 1-4.

[0052] The stator positioning mechanism 5 includes a positioning support column 5-1, a positioning guide shaft 5-2, a positioning guide sleeve 5-3, a positioning mounting plate 5-4, a positioning bearing 5-5, a stator fixing mechanism 5-6, a handle 5-7, a screw 5-8 and a rotary handle 5-9; the positioning support column 5-1 is fixedly connected to the support plate 1-4, one end of the positioning guide shaft 5-2 is connected to the positioning support column 5-1, and the other end passes through the positioning guide sleeve 5-3, the positioning guide sleeve 5-3 is arranged on the positioning mounting plate 5-4, the positioning bearing 5-5 is installed on the positioning mounting plate 5-4, the handle 5-7, the screw 5-8 and the rotary handle 5-9 are arranged on the positioning mounting plate 5-4, and the stator fixing mechanism 5-6 is connected to the positioning mounting plate 5-4.

[0053] In the embodiment, a preferred method of each mechanism of the device for twisting the flat wire at the end of the stator of a flat wire motor is provided, wherein the driving source 2-1 can be a driving motor or a driving handle. This embodiment can be implemented by manual operation or mechanical automation operation. The cost of manual operation is lower, so this embodiment adopts a driving handle to perform the flat wire twisting process.

[0054] First, the operator connects the stator fixing mechanism 5-6 equipped with the stator 200 to the positioning mounting plate 5-4 through bolts. The operator rotates the screw 5-8 through the handle 5-9, and the positioning mounting plate 5-4 is guided down by the positioning guide shaft 5-2. The stator 200 is lowered at the same time, so that the outermost flat wire 100 of the stator 200 is inserted into the slot 1 and slot 2 of the inner mold 4-10 and the outer mold 4-11 of the lifting mechanism 4.

[0055] Then, the operator rotates the drive source 2-1 (this embodiment adopts a drive handle, that is, manual operation, and a drive motor can also be installed according to actual conditions) to drive the reducer 2-2 to rotate, and the drive gear 2-4 installed on the two output shafts of the reducer 2-2 respectively meshes with the inner ring driven gear 3-3 and the outer ring driven gear 3-4 and drives them to rotate, driving the inner mold 4-10 and the outer mold 4-11 in the lifting mechanism 4 to rotate in opposite directions at the same time. At the same time, the cam follower 4-4 of the lifting mechanism 4 rolls on the inner mold lifting cam 4-5 and the outer mold lifting cam 4-6, respectively driving the inner mold 4-10 and the outer mold 4-11 to slowly move up according to the specified distance to eliminate the length lost by the flat wire 100 in the stator axial direction during the twisting process. The operator rotates to the specified scale line position and fixes it to complete the twisting process of the outermost adjacent flat wire 100.

[0056] Finally, the operator rotates the screw 5-8 through the handle 5-9 to make the flat wire 100 of the stator 200 exit the twisting mold, and switches to the second group of twisting molds according to the mold switching steps, repeats the twisting process steps, completes the twisting process of the flat wire, and switches to the third group of twisting molds, the fourth group of twisting molds, the fifth group of twisting molds, and the sixth group of twisting molds again, and repeats the twisting process steps again to complete the twisting process of all flat wires.

[0057] It should be pointed out that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 device for twisting the flat wire at the end of a flat wire motor stator, characterized by: It includes a frame, a driving mechanism, a twisting mechanism, a lifting mechanism and a stator positioning mechanism; the driving mechanism is arranged on the frame, the twisting mechanism is connected to the driving mechanism, one end of the lifting mechanism is connected to the frame, and the other end is connected to the twisting mechanism, the lifting mechanism is located on the upper part of the twisting mechanism, the stator positioning mechanism is located on the upper part of the twisting mechanism and connected to the frame, the lifting mechanism is slidably connected to the twisting mechanism, and the stator positioning mechanism is slidably connected to the frame; The frame includes supporting legs, a base plate, pillars and a supporting plate; the supporting legs are mounted on the base plate, the pillars are arranged on the base plate, and the supporting plate is arranged on the pillars; The twisting mechanism includes a base, a support shaft, an inner ring driven gear, an outer ring driven gear, an inner ring bearing, an outer ring bearing, an inner ring rotating shaft, an outer ring rotating shaft, an inner ring mounting seat, an outer ring mounting seat and a guide sleeve; the base is mounted on the bottom plate, the support shaft is fixedly connected to the base, the inner ring bearing is arranged on the support shaft, the inner ring rotating shaft is mounted on the inner ring bearing, the inner ring driven gear is mounted on the inner ring rotating shaft, the inner ring mounting seat is mounted on the inner ring rotating shaft, the outer ring bearing is arranged on the inner ring rotating shaft, the outer ring rotating shaft is arranged on the outer ring bearing, the outer ring driven gear is arranged on the outer ring rotating shaft, the outer ring mounting seat is arranged on the outer ring rotating shaft, and the guide sleeve is arranged on the inner ring mounting seat and the outer ring mounting seat; The lifting mechanism includes an inner mold guide shaft, an inner mold mounting plate, an inner mold support seat, a cam follower, an inner mold lifting cam, an outer mold lifting cam, an outer mold guide shaft, an outer mold mounting plate, an outer mold support seat, an inner mold and an outer mold; the inner mold guide shaft and the outer mold guide shaft are respectively slidably connected with the guide shaft sleeve, the inner mold mounting plate is fixedly connected with the inner mold guide shaft, and the outer mold mounting plate is fixedly connected with the outer mold guide shaft, the inner mold support seat is arranged on the inner mold mounting plate, and the outer mold support seat is arranged on the outer mold mounting plate, the cam follower is installed on the inner mold support seat and the outer mold support seat and cooperates with the inner mold lifting cam and the outer mold lifting cam, the inner mold is installed on the inner mold mounting plate, the outer mold is installed on the outer mold mounting plate, and the inner mold lifting cam and the outer mold lifting cam are installed on the support plate.

2. The device for twisting the flat wire at the end of the flat wire motor stator according to claim 1, characterized in that: The driving mechanism includes a driving source, a reducer, a mounting seat and a driving gear; the mounting seat is arranged on the frame and fixedly connected to the reducer, one end of the reducer is connected to the driving source, and the other end is connected to the driving gear.

3. The device for twisting the flat wire at the end of the flat wire motor stator according to claim 2, characterized in that: The stator positioning mechanism includes a positioning support column, a positioning guide shaft, a positioning guide sleeve, a positioning mounting plate, a positioning bearing, a stator fixing mechanism, a handle, a screw and a rotary handle; the positioning support column is fixedly connected to the support plate, one end of the positioning guide shaft is connected to the positioning support column, and the other end passes through the positioning guide sleeve, the positioning guide sleeve is arranged on the positioning mounting plate, the positioning bearing is installed on the positioning mounting plate, the handle, the screw and the rotary handle are arranged on the positioning mounting plate, and the stator fixing mechanism is connected to the positioning mounting plate.

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