CN211606349U - Stator coil's processing station - Google Patents

Abstract

The utility model provides a stator coil's processing worker station, processing worker station including cam wheel splitter, rotary disk, a pair of hairpin coil tightening means, tighten up drive arrangement, graduation toggle gear, coil insertion device and coil and tak device away. The utility model discloses with the left and right sides of two sets of hairpin coil tightening means integrations at a rotary disk, divide the worker to insert the line and the coil tightens up the operation separately simultaneously, after left and right sides hairpin coil tightening means accomplishes the operation, drive the rotary disk level by the cam wheel splitter and rotate 180 degrees, make both sides hairpin coil tightening means's position exchange, the right side is inserted the hairpin coil tightening means of full coil and is shifted the left side and carry out the coil and tighten up, the unloaded hairpin coil tightening means of left side shifts the right side and inserts the line, left and right sides hairpin coil tightening means has been realized and can both seamlessly link up the next process, the process time has greatly been saved, further promoted production efficiency.

Description

Stator coil's processing station

Technical Field

The utility model relates to a stator coil's processing production, concretely relates to stator coil's processing worker station.

Background

A stator core of an existing hairpin motor is of a hollow structure, a plurality of layers of annular coil units formed by U-shaped hairpin coils are inserted into the stator core, and fig. 1 shows a U-shaped hairpin coil 10, which is a common hairpin coil, and has two bottom feet 11 and 12. At present, the domestic mode is that one hairpin coil is inserted into a ring shape and then transferred into a stator core. During this operation we found a number of problems:

1. when each hairpin coil is inserted and a circle of annular coil units is to be finished, the last hairpin coils are difficult to insert due to mutual extrusion of the coils, so that workers need to expend great energy and physical force to insert the last hairpin coils in place;

2. because the last hair-pin coils are difficult to insert in place, the hair-pin coils are likely to be bent by improper force applied by workers in the operation, so that the product quality is influenced;

3. the manual operation mode is inefficient, and the product quality is not guaranteed.

To address the above problems, the applicant has previously filed a patent application with the national intellectual property office under the application number 202010036172.X, which is incorporated herein by reference in its entirety as background. As shown in fig. 2, the apparatus mainly includes a first guide plate 100, a second guide plate 200, and a pushing mechanism 300. A circle of insertion tubes 102 for inserting the first bottom foot 11 of the U-shaped coil 10 are arranged on the inner ring of the upper surface of the first guide disc 100, and a plurality of first guide sliding chutes 101 distributed counterclockwise or counterclockwise are arranged on the first guide disc 100; the second guide disc 200 is coaxially and horizontally arranged below the first guide disc 100, a plurality of second guide sliding chutes are formed in the second guide disc 200, and the distribution direction of the second guide sliding chutes is opposite to that of the first guide sliding chutes; the pushing mechanism 300 is provided with a plurality of push rods 310, the number of the push rods 310 is the same as that of the first guide sliding groove and the second guide sliding groove, each push rod 310 respectively penetrates through the first guide sliding groove and the second guide sliding groove at the same time and can slide in the first guide sliding groove and the second guide sliding groove, and each push rod 310 is provided with a supporting mechanism 320 located between the first guide disc 100 and the second guide disc 200.

The working principle of the device mainly comprises two steps: (1) inserting a coil on the device; (2) the second guiding disc 200 of the first guiding disc 100 rotates relatively to drive the push rod 310 in the first guiding chute 101 and the second guiding chute 201 to slide from outside to inside to push the second bottom leg 12 of the outer ring to rotate towards the inner ring, thereby completing the tightening operation of the coil.

Based on the scheme, how to further improve the production efficiency and promote the automation level of the stator coil is the direction of continuous research by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stator coil's processing worker station, stator coil comprises a plurality of hairpin coils that enclose into the round, and processing worker station includes:

a cam divider;

the middle part of the rotating disc is fixed on an output shaft of the cam divider, and the cam divider drives the rotating disc to periodically rotate for 180 degrees in the horizontal direction;

the pair of hairpin coil tightening devices are fixed on the left side and the right side of the rotating disk, each hairpin coil tightening device is provided with a first rotating disk and a second rotating disk which are positioned above the rotating disk, the first rotating disk and the second rotating disk are coaxially distributed up and down and can horizontally rotate relatively, and a circle of coil slots are formed in the first rotating disk;

the tightening driving device is arranged below the left side of the rotating disc and is provided with a first pushing mechanism and a tightening mechanism, the tightening mechanism is fixed on the first pushing mechanism, the first pushing mechanism pushes the tightening mechanism to the rotating disc direction, and the tightening mechanism drives the first rotating disc to rotate relative to the second rotating disc;

the indexing shifting device is arranged below the right side of the rotating disc and is provided with a second pushing mechanism and a shifting mechanism, the shifting mechanism is fixed on the second pushing mechanism, the second pushing mechanism pushes the shifting mechanism to the rotating disc, and the shifting mechanism drives the first rotating disc and the second rotating disc to synchronously and horizontally rotate relative to the rotating disc;

and the coil inserting device and the coil taking-away device are respectively positioned at two sides of the rotating disk, the coil inserting device is used for inserting the hairpin coils into the coil slots of the right hairpin coil tightening device one by one, and the indexing shifting device shifts the hairpin coil tightening device to horizontally rotate by a preset angle after each hairpin coil is inserted, and the coil taking-away device is used for taking away the stator coil tightened on the left hairpin coil tightening device.

Further, the hairpin coil tightening device is provided with a first power plate and a second power plate which are positioned below the rotating disc, and the diameter of the second power plate is larger than that of the first power plate and is positioned above the first power plate;

the hairpin coil tightening device is provided with a mandrel, a first turntable and a first power plate are fixedly sleeved at the upper end and the lower end of the mandrel, a bearing assembly is sleeved at the lower part of the mandrel, and a second power plate and a second turntable are fixedly sleeved on the outer diameter of the bearing assembly;

the first power plate is provided with two first positioning holes positioned at two sides of the mandrel, the second power plate is provided with two second positioning holes positioned at two sides of the mandrel, and the second positioning holes are positioned at the periphery of an area projected on the second power plate in the axial direction of the first power plate.

Furthermore, the tightening mechanism is provided with a first top plate and a first servo motor, a driving shaft of the first servo motor penetrates through the first top plate and is connected with the first rotating plate, two first positioning pins which are respectively inserted into the first positioning holes are erected on the upper surface of the first rotating plate, and a first origin switch for detecting the position of the first rotating plate is arranged on the upper surface of the first top plate;

two first clamping pins for inserting into the second positioning holes are erected on the first top plate.

Furthermore, the toggle mechanism is provided with a second top plate and a second servo motor, a driving shaft of the second servo motor penetrates through the second top plate and is connected with the second rotating plate, two second positioning pins which are respectively used for inserting into second positioning holes are erected on the upper surface of the second rotating plate, and a second origin switch used for detecting the position of the second rotating plate is arranged on the upper surface of the second top plate.

Furthermore, clamping grooves are formed in the outer diameters of the first power plate and the second power plate;

the lower surface of the rotating disc is fixedly provided with a left set of first telescopic bolt mechanisms and a right set of first telescopic bolt mechanisms, the first telescopic bolt mechanisms are provided with first telescopic rods fixed on the lower surface of the rotating disc, and the bottoms of the first telescopic rods are fixedly provided with first bolt blocks capable of being embedded into the clamping grooves of the second power plate;

a second telescopic bolt mechanism is fixed on the lower surface of the second power plate, the second telescopic bolt mechanism is provided with a second telescopic rod fixed on the lower surface of the second power plate, and a second bolt block which can be embedded into the clamping groove of the first power plate is fixed at the bottom of the second telescopic rod;

the first top plate and the second top plate are respectively provided with a first long ejector rod and a second long ejector rod in a standing mode, the first long ejector rod and the second long ejector rod are used for upwards jacking the first telescopic bolt mechanism to enable the first bolt block to be separated from the second power plate clamping groove, the first top plate is also provided with a short ejector rod in a standing mode, and the short ejector rod is used for upwards jacking the second telescopic bolt mechanism to enable the second bolt block to be separated from the first power plate clamping groove.

Furthermore, the lower surfaces of the first bolt block and the second bolt block are respectively fixed with a first jacking block and a second jacking block, the first long ejector rods and the second long ejector rods are used for jacking the first jacking blocks of the two sets of first telescopic bolt mechanisms upwards, and the short ejector rods are used for jacking the second jacking blocks upwards.

Furthermore, a table top fixing plate is arranged below the rotating disc in parallel, and the cam divider, the tightening driving device and the indexing shifting device are all fixed through the table top fixing plate;

the tightening driving device and the indexing shifting device are respectively provided with two sets of optical fiber detection mechanisms fixed on the table board fixing plate, each set of optical fiber detection mechanism consists of two optical fiber correlation devices symmetrically arranged at two sides of the tightening driving device and the indexing shifting device, the two optical fiber correlation devices of each set of optical fiber detection mechanism are used for correlating light rays to detect whether the first jacking block or the second jacking block is reset or not, and the first jacking block and the second jacking block are positioned on the light path emitted by the optical fiber correlation devices in the reset state.

Furthermore, the first top plate and the second top plate are located above the table top fixing plate, the tightening driving device and the indexing shifting device are further respectively provided with a first fixing bottom plate and a second fixing bottom plate which are located below the table top fixing plate, the first top plate, the first fixing bottom plate, the second top plate and the second fixing bottom plate are connected through a plurality of wire shafts penetrating through the rotating disc, a plurality of linear bearings are arranged on the table top fixing plate, and the wire shafts penetrate through shaft holes of the linear bearings.

The utility model has the advantages that:

(1) two sets of hairpin coil tightening devices are integrated on the left side and the right side of a rotating disc, and meanwhile, the work of wire plugging and coil tightening are carried out respectively, so that the production efficiency is greatly improved;

(2) after the left and right card sending coil tightening devices complete operation, the cam divider drives the rotating disc to horizontally rotate 180 degrees, so that the positions of the two card sending coil tightening devices are changed, the card sending coil tightening device with a full coil inserted on the right side is transferred to the left side for coil tightening, and the card sending coil tightening device with a no-load on the left side is transferred to the right side for wire insertion, so that the left and right card sending coil tightening devices can be seamlessly connected to the next procedure, the processing time is greatly saved, and the production efficiency is further improved;

(3) aiming at the hairpin coil tightening devices with the same structures on the left side and the right side, a tightening driving device and an indexing shifting device are designed in a targeted manner, and two mechanisms respectively perform own functions and are respectively used for driving the tightening operation of the left hairpin coil tightening device and driving the integral shifting of the right hairpin coil tightening device to adapt to the continuous insertion of coils;

(4) the running stability of the system is detected through the origin switch and the optical fiber detection mechanism, the mechanism is prevented from making mistakes, and the stability and the safety of the whole mechanism can be effectively ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic diagram of a current conventional hairpin;

FIG. 2 is a partial schematic view of a hairpin tightening mechanism as referred to in the background art;

fig. 3 is a schematic view of a stator coil processing station according to the present invention;

fig. 4 is a perspective view of a hairpin coil tightening device applied to the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a perspective view of FIG. 4 at a bottom view angle;

FIG. 7 is a schematic view of a first latch mechanism engaged between the bottom of the hairpin tightener and the rotating disk;

FIG. 8 is a schematic illustration of the mating of a first power plate and a second power plate at the bottom of the hairpin tightening device;

FIG. 9 is a schematic view of a tightening drive;

FIG. 10 is a schematic view of an indexed shifting apparatus;

FIG. 11 is a schematic view of an optical fiber detection mechanism.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description so as to explain the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

The utility model provides a stator coil's processing worker station, stator coil comprises a plurality of hairpin coils that enclose into the round, as shown in fig. 3, processing worker station includes:

a cam divider 6;

the middle part of the rotating disc 4 is fixed on an output shaft of the cam divider 6, and the rotating disc 4 is driven by the cam divider 6 to periodically rotate for 180 degrees in the horizontal direction;

the pair of hairpin coil tightening devices 5 are fixed on the left side and the right side of the rotating disk 4, the hairpin coil tightening devices 5 are provided with a first rotating disk 5-2 and a second rotating disk 5-3 which are positioned above the rotating disk 4, the first rotating disk 5-2 and the second rotating disk 5-3 are coaxially distributed up and down and can horizontally rotate relatively, and a circle of coil slots are arranged on the inner ring of the first rotating disk 5-2;

the tightening driving device 7 is installed below the left side of the rotating disc 4, the tightening driving device 7 is provided with a first pushing mechanism and a tightening mechanism, the tightening mechanism is fixed on the first pushing mechanism, the first pushing mechanism pushes the tightening mechanism towards the rotating disc 4, and the tightening mechanism drives the first rotating disc 5-2 to rotate relative to the second rotating disc 5-3, please refer to fig. 3 and fig. 9;

the indexing shifting device 2 is installed below the right side of the rotating disc 4, the indexing shifting device 2 is provided with a second pushing mechanism and a shifting mechanism, the shifting mechanism is fixed on the second pushing mechanism, the second pushing mechanism pushes the shifting mechanism towards the rotating disc 4, and the shifting mechanism drives the first rotating disc 5-2 and the second rotating disc 5-3 to synchronously horizontally rotate relative to the rotating disc 4, please refer to fig. 3 and fig. 10;

and the coil inserting device and the coil removing device (not shown in the figure) are respectively positioned at two sides of the rotating disk 4, the coil inserting device is used for inserting the hairpin coils 5-15 into the coil slots of the right hairpin coil tightening device 5 one by one, and the indexing shifting device 2 shifts the hairpin coil tightening device 5 to rotate horizontally by a preset angle after each hairpin coil is inserted, and the coil removing device is used for removing the tightened stator coil on the left hairpin coil tightening device 5.

In an alternative embodiment, as shown in fig. 4-8, the hairpin tightening device 5 is provided with a first power plate 5-9 and a second power plate 5-10 located below the rotating disk 4, the second power plate 5-10 having a diameter larger than that of the first power plate 5-9 and located above the first power plate 5-9, the first power plate 5-9 is used for driving the first rotating disk 5-2 to rotate relative to the second rotating disk 5-3, and the second power plate 5-10 is used for driving the first rotating disk 5-2 and the second rotating disk 5-3 to synchronously rotate horizontally relative to the rotating disk 4, i.e. driving the hairpin tightening device 5 to rotate horizontally relative to the rotating disk 4 as a whole. The hairpin coil tightening device 5 is provided with a mandrel 5-14, and the first rotating disc 5-2 and the first power plate 5-9 are fixedly sleeved at the upper end and the lower end of the mandrel 5-14, so that the first rotating disc 5-2 and the first power plate 5-9 can synchronously rotate. The lower part of the mandrel 5-14 is sleeved with a bearing assembly (comprising a connecting shaft sleeve 5-11, a combined bearing 5-12 and a combined bearing 5-13), and the second power plate 5-10 and the second rotating disc 5-3 are fixedly sleeved on the outer diameter of the bearing assembly, so that the synchronous rotation of the second power plate 5-10 and the second rotating disc 5-3 is realized. Two first positioning holes 5-9a positioned at two sides of the mandrel 5-14 are arranged on the first power plate 5-9, two second positioning holes 5-10a positioned at two sides of the mandrel 5-14 are arranged on the second power plate 5-10, and the second positioning holes 5-10a are positioned at the periphery of the area projected on the second power plate 5-10 in the axial direction of the first power plate 5-9. The second rotary table 5-3 is fixedly connected with the second power plate 5-10 through a connecting shaft sleeve 5-11 and a combined bearing 5-13, namely the second rotary table 5-3 and the second power plate 5-10 are relatively static and can synchronously rotate, and the combined bearing 5-12 is sleeved on the outer diameter of the connecting shaft sleeve 5-11. Furthermore, a guide disk 5-1 can be arranged in parallel above the first rotary disk 5-2, which guide disk 5-1 is also fixedly mounted on the spindle 5-14, so that the guide disk 5-1 and the first rotary disk 5-2 remain relatively stationary and can rotate synchronously. Wherein, the guide disc 5-1 is provided with a circle of coil slots, and the bottom feet of the hairpin coils penetrate through the coil slots of the guide disc 5-1 and are placed on the first rotating disc 5-2.

In an alternative embodiment, as shown in fig. 9, the tightening mechanism is provided with a first top plate 7-6 and a first servo motor 7-3, the first servo motor 7-3 is fixed on the lower surface of the first top plate 7-6, the driving shaft of the first servo motor 7-3 passes through the first top plate 7-6 and is connected with a first rotating plate 7-12, and two first positioning pins 7-8 for being inserted into the first positioning holes 5-9a, respectively, are erected on the upper surface of the first rotating plate 7-12; two first fastening pins 7-11 for inserting the second positioning holes 5-10a are erected on the first top plate 7-6.

In an alternative embodiment, as shown in fig. 10, the toggle mechanism is provided with a second top plate 2-6 and a second servo motor 2-3, the second servo motor 2-is fixed on the lower surface of the second top plate 2-6, the driving shaft of the second servo motor 2-3 passes through the second top plate 2-6 and is connected with a second rotating plate 2-12, and two second positioning pins 2-8 for being inserted into second positioning holes 5-10a are erected on the upper surface of the second rotating plate 2-12.

In an alternative embodiment, a table top fixing plate 1 is arranged below the rotating disc 4 in parallel, and the cam divider 6, the tightening driving device 7 and the indexing shifting device 2 are all fixed through the table top fixing plate 1; the tightening driving device 7 and the indexing shifting device 2 are respectively provided with two sets of optical fiber detection mechanisms fixed on the table top fixing plate 1, each set of optical fiber detection mechanism consists of two optical fiber correlation emitters 3 symmetrically arranged on two sides of the tightening driving device 7 and the indexing shifting device 2, two optical fiber correlation devices of each set of optical fiber detection mechanism are used for correlating light rays to detect whether the first jacking blocks 4-8 or the second jacking blocks 5-8 are reset or not, and the first jacking blocks 4-8 and the second jacking blocks 5-8 in the reset state are positioned on the light ray paths emitted by the optical fiber correlation devices. Fig. 11 is a schematic diagram of an optical fiber detection mechanism, which is composed of a base 3-1, a mounting shaft 3-2, an optical fiber holding block 3-4 and an optical fiber fixing plate 3-5, wherein one end of an optical fiber 3-3 used as a light transmission medium is fixed on the optical fiber fixing plate 3-5, and a light emitting port is arranged on the right side of the optical fiber fixing plate 3-5.

Referring to fig. 3 and 9, the first top plate 7-6 is located above the table top fixing plate 1, the tightening driving device 7 is further provided with a first fixing bottom plate 7-2 located below the table top fixing plate 1, the jacking cylinder 7-1 of the first propulsion mechanism is installed on the lower surface of the first fixing bottom plate 7-2, the push rod of the first jacking cylinder 7-1 penetrates through the first fixing bottom plate 7-2 and is connected with the first middle plate 7-14, and the first servo motor 7-3 of the tightening driving device 7 is installed between the first middle plate 7-14 and the first top plate 7-6. A plurality of wire guide shafts 7-5 are arranged between the first middle plate 7-14 and the first top plate 7-6, a plurality of linear bearings 7-4 are arranged on the table top fixing plate 1, and the wire guide shafts 7-5 penetrate through shaft holes of the linear bearings to axially limit. The first servo motor 7-3 is connected with the first rotating plate 7-12 through a coupler 7-10 to play a role in turning the output direction of the first servo motor 7-3.

Referring to fig. 10, the second top plate 2-6 is located above the table top fixing plate 1, the indexing shifting device 2 is further provided with a second fixing bottom plate 2-2 located below the table top fixing plate 1, the jacking cylinder 2-1 of the second propulsion mechanism is installed on the lower surface of the second fixing bottom plate 2-2, the push rod of the second jacking cylinder 2-1 penetrates through the second fixing bottom plate 2-2 and is connected with the second middle plate 2-14, and the second servo motor 2-3 of the indexing shifting device 2 is installed between the second middle plate 2-14 and the second top plate 2-6. A plurality of wire guide shafts 2-5 are arranged between the second middle plates 2-14 and the second top plates 2-6, a plurality of linear bearings 2-4 are arranged on the table top fixing plate 1, and the wire guide shafts 2-5 penetrate through shaft holes of the linear bearings to play a role of axial guiding. The second servo motor 2-3 is connected with the second rotating plate 2-12 through a coupler 2-10 to play a role in turning the output direction of the second servo motor 2-3.

A first origin switch 7-9 and a second origin switch 2-9 are respectively arranged on the upper surfaces of the first top plate 7-6 and the second top plate 2-6 for detecting whether the first rotating plate 7-12 and the second rotating plate 2-12 are located at the origin, namely, the first rotating plate 7-12 and the second rotating plate 2-12 are respectively positioned right above the first origin switch 7-9 and the second origin switch 2-9, if not, the PLC system can continue to control the first and second servo motors 7-3 and 2-3 to rotate until the original point is returned, so that the first positioning pin 7-8 can be correctly inserted into the first positioning hole 5-9a of the first power plate 5-9, and the second positioning pins 2-8 are correctly inserted into the second positioning holes 5-10a inserted into the second power plates 5-10. Optionally, the first origin switch 7-9 and the second origin switch 2-9 are proximity switches.

In an alternative embodiment, as shown in fig. 7-8, the outer diameters of the first power plate 5-9 and the second power plate 5-10 are both provided with clamping grooves 5-9b and 5-10 b; the lower surface of the rotating disk 4 is fixedly provided with a left set and a right set of first telescopic bolt mechanisms, the first telescopic bolt mechanisms are provided with first telescopic rods 4-6 fixed on the lower surface of the rotating disk 4, and the bottoms of the first telescopic rods 4-6 are fixedly provided with first bolt blocks 4-7 which can be embedded into clamping grooves of second power plates 5-10. A second telescopic bolt mechanism is fixed on the lower surface of the second power plate 5-10, a second telescopic rod 5-6 fixed on the lower surface of the second power plate 5-10 is arranged on the second telescopic bolt mechanism, and a second bolt block 5-7 capable of being embedded into the clamping groove of the first power plate 5-9 is fixed at the bottom of the second telescopic rod 5-6. The first top plate 7-6 and the second top plate 2-6 are respectively provided with a first long ejector rod 7-7 and a second long ejector rod 2-7 in a vertically standing mode, the first long ejector rod 7-7 and the second long ejector rod 2-7 are used for jacking up the first telescopic bolt mechanism to enable the first bolt block 4-7 to be separated from the second power plate clamping groove 5-10b, the first top plate 7-6 is also provided with a short ejector rod 7-13 in a vertically standing mode, and the short ejector rod 7-13 is used for jacking up the second telescopic bolt mechanism to enable the second bolt block 5-7 to be separated from the first power plate clamping groove 5-9 b. The second power plate 5-10 is provided with a linear bearing 5-5 and a wire guide shaft 5-4, and the second contraction rod 5-6 penetrates through the linear bearing 5-5 and is connected with the wire guide shaft 5-4. Optionally, the first latch block 4-7 and the second latch block 5-7 are in a shape of a "convex", and the protruded parts are just clamped in the second power board clamping grooves 5-10b and the first power board clamping grooves 5-9 b.

In an optional embodiment, the lower surfaces of the first latch block 4-7 and the second latch block 5-7 are respectively fixed with a first jacking block 4-8 and a second jacking block 5-8, the first long ejector rod 7-7 and the second long ejector rod 2-7 are used for jacking the first jacking block 4-8 of the two sets of first telescopic latch mechanisms upwards, and the short ejector rod 7-13 is used for jacking the second jacking block 5-8 upwards.

The utility model discloses stator coil processing method based on above-mentioned processing worker station includes following step:

s1, referring to fig. 4 to 9, the operation of the tightening drive device 7 on the left side of the rotary disk 4 will be described first. The first pushing mechanism in fig. 9 pushes the tightening mechanism towards the direction of the rotating disk 4, after the tightening mechanism is pushed to the proper position, two first clamping pins 7-11 are inserted into two second positioning holes 5-10a of the second power plates 5-10 to lock the second power plates 5-10 and limit the second power plates 5-10 from rotating, in addition, the short ejector rods 7-13 push up the second jacking blocks 5-8 upwards, so that the second pin blocks 5-7 of the second telescopic pin mechanisms on the lower surfaces of the second power plates 5-10 are separated from the first power plate clamping grooves 5-9b, and the first power plates 5-9 and the second power plates 5-10 are unlocked mutually. Meanwhile, with the tightening mechanism pushed in place, the first positioning pin 7-8 is inserted into the first positioning hole 5-9a of the first power plate 5-9, namely, the tightening mechanism is connected with the first power plate 5-9 of the hairpin loop tightening device on the left side of the rotating disk 4, the first rotating plate 7-12 is driven to rotate by the first servo motor 7-3, and then the first power plate 5-9 can be driven to rotate, because the short ejector rods 7-13 separate the second latch blocks 5-7 from the first power board clamping grooves 5-9b, therefore, the second power plate 5-10 cannot synchronously rotate with the first power plate 5-9, and finally the first power plate 5-9 rotates relative to the static second power plate 5-10 and the rotating disk 4, so that the coils on the left hairpin coil tightening device 5 can be tightened.

With continued reference to fig. 4-10, the operation of the indexing dial 2 on the right side of the rotatable plate 4 will now be described. The second pushing mechanism in fig. 10 pushes the shifting mechanism to the direction of the rotating disk 4, and after the shifting mechanism is pushed to the right, the second long ejector rods 2-7 push up the first jacking blocks 4-8 of the first telescopic bolt mechanisms on the right of the lower surface of the rotating disk 4, so that the first jacking blocks 4-7 of the first telescopic bolt mechanisms on the right of the lower surface of the rotating disk 4 are separated from the second power plate clamping grooves 5-10b of the second power plates 5-10, the second power plates 5-10 and the rotating disk 4 are unlocked, and mutual interference between the second power plates 5-10 and the rotating disk 4 is guaranteed. Meanwhile, with the pushing of the toggle mechanism in place, the second positioning pins 2-8 are inserted into the second positioning holes 5-10a of the second power plates 5-10 in a proper manner, and therefore the connection of the toggle mechanism and the second power plates 5-10 of the hairpin coil tightening device on the right side of the rotating disc 4 is achieved. And then the second servo motor 2-3 drives the second rotating plate 2-12 to rotate, so that the second power plate 5-10 can be driven to rotate, and in addition, as the bolt block of the second telescopic bolt mechanism on the lower surface of the second power plate 5-10 is clamped in the clamping groove of the first power plate 5-9, the first power plate 5-9 is considered to be locked on the second power plate 5-10, namely the first power plate 5-9 and the second power plate 5-10 rotate synchronously as a whole. Thereby it is finally achieved that the first and second power plates 5-9, 5-10 rotate synchronously with respect to the stationary rotary disc 4.

S2, the first servo motor 7-3 of the left tightening driving device 7 drives the first rotating plate 7-12 to rotate, and further drives the first power plate 5-9 to rotate, because the short ejector rod 7-13 disengages the second latch block 5-7 from the first power plate slot 5-9b, the second power plate 5-10 does not rotate synchronously with the first power plate 5-9, thereby realizing that the first power plate 5-9 rotates relative to the stationary second power plate 5-10 and the rotating disc 4, and because the first power plate 5-9 is fixedly connected with the first rotating disc 5-2 through the mandrel 5-14, the first rotating disc 5-2 also rotates along with the first power plate, thereby finally realizing that the first rotating disc 5-2 rotates relative to the stationary second rotating disc 5-3, as can be known from the description of the background art, the coils on the left hairpin coil tightening device 5 are tightened through the relative rotation of the first rotary table 5-2 and the second rotary table 5-3. After the completion of the coil tightening, the tightened stator coil on the left-side hairpin coil tightening device 5 is removed by a coil removing device (not shown).

When left side hairpin coil tightening means 5 carries out the coil and tightens up, right side hairpin coil tightening means 5 carries out the plug wire operation, and the process is: after each hairpin coil is inserted, the second servo motor 2-3 of the toggle mechanism drives the second rotating plate 2-12 to rotate for a certain angle, the second positioning pin 2-8 on the second rotating plate 2-12 drives the second power plate 5-10 to rotate, the second power plate 5-10 of the right hairpin coil tightening device 5 and the first power plate 5-9 are connected and rotate synchronously through the mandrel 5-14, so that the first rotating disc 5-2 and the second rotating disc 5-3 rotate synchronously relative to the static rotating disc 4, namely the hairpin coil tightening device 5 is toggled to rotate horizontally relative to the rotating disc 4 integrally, repeating the steps for a plurality of times until the coil slots are fully inserted with the card sending coils.

S3, the first pushing mechanism drives the tightening mechanism to retreat and disconnect the connection with the first power plate 5-9 of the left hairpin coil tightening device 5, and the second pushing mechanism drives the toggle mechanism to retreat and disconnect the connection with the second power plate 5-10 of the right hairpin coil tightening device.

S4, the cam divider 6 drives the rotating disc 4 to rotate 180 degrees periodically in the horizontal direction, so that the left and right positions of the hairpin coil tightening devices 5 at the two ends of the rotating disc 4 are reversed, namely, the hairpin coil tightening devices 5 with fully inserted and un-tightened coils at the right side are transferred to the left side to tighten the coils, and the empty hairpin coil tightening devices 5 at the left side are transferred to the right side to perform coil inserting operation. In the rotating process of the rotating disk 4, the first telescopic latch mechanisms on the two sides of the lower surface of the rotating disk 4 are clamped on the second power plates 5-10, so that the hairpin coil tightening devices 5 on the two sides and the rotating disk 4 are relatively stable and are not easy to move.

And S4, repeating the steps S1-S3, thereby realizing the operation of simultaneously inserting the wire and tightening the coil on one work station.

Step S1 further includes: whether the tightening mechanism and the first power plate 5-9 and the toggle mechanism and the second power plate 5-10 are connected in place or not is detected by a plurality of sets of optical fiber detection mechanisms, and after the tightening mechanism and the toggle mechanism are connected in place, the step S2 is carried out, wherein the detection process is as follows: the optical fiber transmitter 3 symmetrically arranged on two sides of the tightening driving device 7 and the indexing shifting device 2 transmits two beams, the first jacking blocks 4-8 and the second jacking blocks 5-8 shield the beams to generate electric signals in a reset state, and whether the tightening mechanism and the first power plate 5-9 and the shifting mechanism and the second power plate 5-10 are connected in place or not is detected by the reset states of the first jacking blocks 4-8 and the second jacking blocks 5-8.

The following explains the principle of determination of the optical fiber detection mechanisms on the left and right sides of the rotating disk 4:

optical fiber detection mechanism on the left side of the rotating disk 4: under normal conditions, a first jacking block 4-8 of a first telescopic bolt mechanism on the left side of the lower surface of the rotating disc 4 is jacked up by a first long jacking rod 7-7, and a second jacking block 5-8 of a second telescopic bolt mechanism on the lower surface of a second power plate 5-10 is jacked up by a short jacking rod 7-13. If any one of the first jacking blocks 4-8 and the second jacking blocks 5-8 is not jacked up normally, a fault is indicated, and troubleshooting and maintenance are needed.

Optical fiber detection mechanism on the right side of the rotating disk 4: under normal conditions, the first jacking block 4-8 of the first telescopic bolt mechanism on the right side of the lower surface of the rotating disc 4 is jacked up by the first long jacking rod 7-7, and the second jacking block 5-7 of the second telescopic bolt mechanism on the lower surface of the second power plate 5-10 is normally embedded in the clamping groove of the first power plate 5-9, namely the second jacking block 5-8 is in an original position. If the first jacking block 4-8 is not jacked normally and/or the second jacking block 5-8 is not in the original position, a fault is indicated and troubleshooting is needed.

The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.

Claims (8)

1. A stator coil's processing station, stator coil comprises a plurality of hairpin coils that enclose into a round, characterized by, and processing station includes:

a cam divider (6);

the middle part of the rotating disc (4) is fixed on an output shaft of the cam divider (6), and the rotating disc (4) is driven by the cam divider (6) to periodically rotate for 180 degrees in the horizontal direction;

the pair of hairpin coil tightening devices (5) are fixed on the left side and the right side of the rotating disk (4), the hairpin coil tightening devices (5) are provided with a first rotating disk (5-2) and a second rotating disk (5-3) which are positioned above the rotating disk (4), the first rotating disk (5-2) and the second rotating disk (5-3) are coaxially distributed up and down and can horizontally rotate relatively, and a circle of coil slots are formed in the first rotating disk (5-2);

the tightening driving device (7) is arranged below the left side of the rotating disc (4), the tightening driving device (7) is provided with a first propelling mechanism and a tightening mechanism, the first propelling mechanism propels the tightening mechanism towards the rotating disc (4), and the tightening mechanism drives the first rotating disc (5-2) to rotate relative to the second rotating disc (5-3);

the indexing shifting device (2) is arranged below the right side of the rotating disk (4), the indexing shifting device (2) is provided with a second pushing mechanism and a shifting mechanism, the second pushing mechanism pushes the shifting mechanism to the rotating disk (4), and the shifting mechanism drives the first rotating disk (5-2) and the second rotating disk (5-3) to synchronously rotate horizontally relative to the rotating disk (4);

the coil inserting device and the coil taking-away device are respectively located on two sides of the rotating disk (4), the coil inserting device is used for inserting the hair clip coils into coil slots of the right-side hair clip coil tightening device (5) one by one, the indexing shifting device (2) shifts the hair clip coil tightening device (5) to rotate horizontally for a preset angle after each hair clip coil is inserted, and the coil taking-away device is used for taking away stator coils tightened on the left-side hair clip coil tightening device (5).

2. The stator coil processing station as set forth in claim 1, wherein the hairpin coil take-up device (5) is provided with a first power plate (5-9) and a second power plate (5-10) below the rotary disk (4), the second power plate (5-10) having a diameter larger than that of the first power plate (5-9) and being located above the first power plate (5-9);

the hairpin coil tightening device (5) is provided with a mandrel (5-14), a first turntable (5-2) and a first power plate (5-9) are fixedly sleeved at the upper end and the lower end of the mandrel (5-14), a bearing assembly is sleeved at the lower part of the mandrel (5-14), and a second power plate (5-10) and a second turntable (5-3) are fixedly sleeved on the outer diameter of the bearing assembly;

two first positioning holes (5-9a) positioned at two sides of the mandrel (5-14) are formed in the first power plate (5-9), two second positioning holes (5-10a) positioned at two sides of the mandrel (5-14) are formed in the second power plate (5-10), and the second positioning holes (5-10a) are positioned at the periphery of an area projected on the second power plate (5-10) in the axial direction of the first power plate (5-9).

3. The stator coil processing station as set forth in claim 2, wherein the tightening mechanism is provided with a first top plate (7-6) and a first servo motor (7-3), a driving shaft of the first servo motor (7-3) passes through the first top plate (7-6) and is connected to the first rotary plate (7-12), two first positioning pins (7-8) for inserting the first positioning holes (5-9a), respectively, are erected on an upper surface of the first rotary plate (7-12), and a first origin switch (7-9) for detecting a position of the first rotary plate (7-12) is provided on an upper surface of the first top plate (7-6);

two first clamping pins (7-11) for inserting into the second positioning holes (5-10a) are erected on the first top plate (7-6).

4. The stator coil processing station as set forth in claim 3, wherein the toggle mechanism is provided with a second top plate (2-6) and a second servo motor (2-3), a driving shaft of the second servo motor (2-3) passes through the second top plate (2-6) and is connected to the second rotary plate (2-12), two second positioning pins (2-8) for inserting the second positioning holes (5-10a), respectively, are erected on the upper surface of the second rotary plate (2-12), and a second origin switch (2-9) for detecting the position of the second rotary plate (2-12) is provided on the upper surface of the second top plate (2-6).

5. The stator coil processing station as set forth in claim 4, wherein the first power plate (5-9) and the second power plate (5-10) are provided with a slot on the outer diameter thereof;

a left set and a right set of first telescopic bolt mechanisms are fixed on the lower surface of the rotating disc (4), the first telescopic bolt mechanisms are provided with first telescopic rods (4-6) fixed on the lower surface of the rotating disc (4), and first bolt blocks (4-7) capable of being embedded into clamping grooves of second power plates (5-10) are fixed at the bottoms of the first telescopic rods (4-6);

a second telescopic bolt mechanism is fixed on the lower surface of the second power plate (5-10), the second telescopic bolt mechanism is provided with a second telescopic rod (5-6) fixed on the lower surface of the second power plate (5-10), and a second bolt block (5-7) capable of being embedded into a clamping groove of the first power plate (5-9) is fixed at the bottom of the second telescopic rod (5-6);

first and second long ejector rods (7-7 and 2-7) are erected on the first top plate (7-6) and the second top plate (2-6) respectively, the first and second long ejector rods (7-7 and 2-7) are used for jacking up the first telescopic bolt mechanism to enable the first bolt block (4-7) to be separated from the second power plate clamping groove (5-10b), short ejector rods (7-13) are erected on the first top plate (7-6), and the short ejector rods (7-13) are used for jacking up the second telescopic bolt mechanism to enable the second bolt block (5-7) to be separated from the first power plate clamping groove (5-9 b).

6. The stator coil processing station as set forth in claim 5, wherein the first jacking blocks (4-8) and the second jacking blocks (5-8) are respectively fixed on the lower surfaces of the first plug blocks (4-7) and the second plug blocks (5-7), the first and second long ejector pins (7-7, 2-7) are used for jacking up the first jacking blocks (4-8) of the two sets of first telescopic plug pin mechanisms, and the short ejector pins (7-13) are used for jacking up the second jacking blocks (5-8).

7. The stator coil processing station as set forth in claim 6, characterized in that a table top fixing plate (1) is arranged in parallel below the rotating disc (4), and the cam divider (6), the tightening driving device (7) and the indexing shifting device (2) are fixed by the table top fixing plate (1);

the tightening driving device (7) and the indexing shifting device (2) are respectively provided with two sets of optical fiber detection mechanisms fixed on the table top fixing plate (1), each set of optical fiber detection mechanism consists of two optical fiber correlation ejectors (3) symmetrically arranged on two sides of the tightening driving device (7) and the indexing shifting device (2), the two optical fiber correlation ejectors of each set of optical fiber detection mechanism are used for correlating light rays to detect whether the first jacking blocks (4-8) or the second jacking blocks (5-8) are reset or not, and the first jacking blocks (4-8) and the second jacking blocks (5-8) in the reset state are positioned on the light ray paths emitted by the optical fiber correlation ejectors.

8. The stator coil processing station as set forth in claim 7, wherein the first top plate (7-6) and the second top plate (2-6) are located above the table top fixing plate (1), and the tightening driving device (7) and the indexing and shifting device (2) are further provided with a first fixing bottom plate (7-2) and a second fixing bottom plate (2-2) respectively located below the table top fixing plate (1), and the first top plate (7-6) and the first fixing bottom plate (7-2) and the second top plate (2-6) and the second fixing bottom plate (2-2) are connected through a plurality of wire guiding shafts penetrating through the rotating disk (4), and the table top fixing plate (1) is provided with a plurality of linear bearings, and the wire guiding shafts penetrate through shaft holes of the linear bearings.

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