Multi-layer head twisting device and head twisting machine

Abstract

The present application relates to the technical field of flat wire motor manufacturing, and provides a multi-layer head twisting device and a head twisting machine. The multi-layer head twisting device comprises a flat wire head twisting mechanism and a head twisting driving mechanism. The flat wire head twisting mechanism comprises a support shaft, head twisting wire discs, adapter sleeves and transmission turntables. A plurality of head twisting wire discs are sequentially and rotatably sleeved on the top of the support shaft along the radial direction of the support shaft. A plurality of adapter sleeves are sequentially and rotatably sleeved on the middle part of the support shaft along the radial direction of the support shaft. A plurality of transmission turntables are sequentially and rotatably sleeved on the support shaft from bottom to top. The head twisting driving mechanism comprises a support base, first rotary driving members and lifting driving members. A plurality of first rotary driving members are sequentially installed on the support base along the circumferential direction of the flat wire head twisting mechanism. The multi-layer head twisting device provided by the present application has reasonable layout, small occupied space and compact structure. The technical problem of complex structure existing in the existing head twisting device is solved, thereby reducing the volume of the multi-layer head twisting device and facilitating the installation and maintenance of the multi-layer head twisting device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flat wire motor manufacturing, in particular to a multi-layer head twisting device and a head twisting machine. BACKGROUND

[0002] The stator winding of the flat wire motor adopts flat wire, compared with the round wire motor, the flat wire motor has the advantages of high power density and compact structure, and is widely used in new energy vehicle drive motors.

[0003] As the number of flat wire layers required by the new energy vehicle drive motor stator is increasing, the number of head twisting line discs of the stator flat wire corresponding head twisting device also increases, accordingly, the number of drive motors corresponding to the head twisting line discs also increases, so the head twisting device has many components, resulting in a complex structure of the head twisting device, and the installation and maintenance of the head twisting device are difficult. SUMMARY

[0004] The present application relates to the technical field of flat wire motor manufacturing, in particular to a multi-layer head twisting device and a head twisting machine.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a multi-layer head twisting device, comprising:

[0006] The flat wire head twisting mechanism comprises a support shaft, a head twisting line disc, an adapter sleeve and a transmission disc, the number of the head twisting line disc, the adapter sleeve and the transmission disc is multiple and one-to-one correspondence, a plurality of the head twisting line discs are sequentially rotatably sleeved on the top of the support shaft along the radial direction of the support shaft, the top of the head twisting line disc has a plurality of wire grooves distributed along the circumferential direction of the head twisting line disc, the wire grooves are used to accommodate flat wires, a plurality of the adapter sleeves are sequentially rotatably sleeved on the middle part of the support shaft along the radial direction of the support shaft, the top of the adapter sleeve is connected with the corresponding head twisting line disc, a plurality of the transmission discs are sequentially rotatably sleeved on the support shaft from bottom to top, and each transmission disc is connected with the bottom of the corresponding adapter sleeve.

[0007] The head twisting driving mechanism comprises a support seat, a first rotary driving member and a lifting driving member, the middle part of the support seat is used for placing the flat wire head twisting mechanism, the support seat is connected with the bottom of the support shaft, the number of the first rotary driving member is multiple and one-to-one correspondence with the transmission disc, a plurality of the first rotary driving members are sequentially installed on the support seat along the circumferential direction of the flat wire head twisting mechanism, each first rotary driving member is connected with the corresponding transmission disc to drive the corresponding transmission disc to rotate, and the lifting driving member is used to drive the support seat to lift.

[0008] In one of the embodiments, the flat wire twist head mechanism further comprises a first mounting plate, which is mounted on the top end of the support shaft, and the outer diameter of the first mounting plate is less than or equal to the inner diameter of the core of the stator.

[0009] In one of the embodiments, the bottom of the support base has a first through hole, the bottom of the support shaft extends to the lower side of the support base through the first through hole, and the flat wire twist head mechanism further comprises a second mounting plate, which is connected to the bottom end of the support shaft and mounted on the bottom side of the support base.

[0010] In one of the embodiments, the bottom side of the lowermost transmission disc is provided with a first annular protrusion extending downward, and the first annular protrusion is placed on the support base.

[0011] In one of the embodiments, the flat wire twist head mechanism further comprises a first wear-resistant annular plate, which is mounted on the bottom side of the first annular protrusion.

[0012] In one of the embodiments, the twist head driving mechanism further comprises a second wear-resistant annular plate, which is mounted on the top side of the support base and corresponds to the position of the first annular protrusion.

[0013] In one of the embodiments, among the two adjacent transmission discs, the bottom side of the upper transmission disc is provided with a second annular protrusion extending downward, and the top side of the lower transmission disc is provided with a third annular protrusion extending upward, and the second annular protrusion and the third annular protrusion are staggered along the circumferential direction of the support shaft.

[0014] In one of the embodiments, when the two adjacent transmission discs are stacked, a first separation cavity is enclosed between the second annular protrusion and the third annular protrusion, and the flat wire twist head mechanism further comprises a first separation sleeve ring corresponding to the number of the first separation cavities, which is mounted in the first separation cavity to reduce the rotational friction between the two adjacent transmission discs.

[0015] In one of the embodiments, each of the first separation sleeve rings has the same structure.

[0016] In one of the embodiments, the top side of the uppermost transmission turntable is provided with a fourth annular protrusion extending upwardly, the flat wire twist head mechanism further comprises a third mounting plate movably sleeved on the outer side of the adapter sleeve and located on the upper side of the transmission turntable, the bottom side of the third mounting plate is provided with a fifth annular protrusion extending downwardly, a second separation cavity is formed between the fourth annular protrusion and the fifth annular protrusion, and the flat wire twist head mechanism further comprises a second separation sleeve installed in the second separation cavity to reduce the rotational friction between the transmission turntable and the third mounting plate.

[0017] In one of the embodiments, the flat wire twist head mechanism further comprises a fourth mounting plate and a first supporting column, the fourth mounting plate has a second through hole for accommodating the fifth annular protrusion, the fourth mounting plate is installed on the bottom side of the third mounting plate, the top of the first supporting column is connected with the fourth mounting plate, and the bottom of the first supporting column is connected with the supporting base.

[0018] In one of the embodiments, the first separation sleeve and the second separation sleeve have the same structure.

[0019] In one of the embodiments, the twist head driving mechanism further comprises a reducer corresponding to each of the first rotary driving members, the input end of the reducer extends horizontally and is connected with the first rotary driving member, the output end of the reducer extends vertically and is connected with a first gear member, and the transmission turntable is connected with a second gear member meshing with the first gear member.

[0020] In one of the embodiments, the twist head driving mechanism further comprises a protective shell corresponding to the number of reducers, the protective shell extends vertically and is installed on the supporting base, the protective shell accommodates the output shaft of the reducer and the first gear member, and the protective shell has a first gap through which the first gear member meshes with the second gear member.

[0021] In one of the embodiments, the twist head driving mechanism further comprises a second supporting column, the bottom of the second supporting column is installed on the supporting base, and the top of the second supporting column is used for installing on the rack of the twist head machine.

[0022] The application further provides a twist head machine comprising a rack, a wire clamping mechanism and the multi-layer twist head device as described in any one of the above embodiments, the wire clamping mechanism is installed on the rack, the wire clamping mechanism is used for clamping the top end of the flat wire of the stator and is located above the flat wire twist head mechanism, and the supporting base is installed on the rack.

[0023] The multi-layer twist head device and the twist head machine have the beneficial effects that the lifting driving member drives the support seat and the flat wire twist head mechanism to feed along the axial direction of the support shaft, so that the flat wire gradually extends into the wire slot of the twist head wire disc, the plurality of first rotary driving members respectively drive the corresponding transmission turntable to rotate, each transmission turntable independently drives the corresponding adapter sleeve and the twist head wire disc to rotate, so as to twist the flat wire in the wire slot and complete the flat wire twisting operation. The flat wire twist head mechanism is installed in an open mode on the support seat and is surrounded by the lifting driving member and the plurality of first rotary driving members, so that the installation and maintenance are facilitated. The twist head wire disc, the adapter sleeve and the transmission turntable are distributed from top to bottom along the support shaft and are sleeved with the support shaft, the twist head wire disc and the adapter sleeve are nested with each other, and the transmission turntables are stacked from bottom to top. The layout is reasonable, the occupied space is small, the structure is compact, the technical problem that the existing twist head device has a complex structure is solved, the volume of the multi-layer twist head device is reduced, and the installation and maintenance of the multi-layer twist head device are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 Structure diagram of the flat wire stator;

[0026] Figure 2 Structure diagram of the twist head machine provided by the embodiment of the present application;

[0027] Figure 3 Structure diagram of the multi-layer twist head device provided by the embodiment of the present application;

[0028] Figure 4 Structure diagram of the flat wire twist head mechanism in the multi-layer twist head device in Figure 3

[0029] Figure 5 Top partial view of the flat wire twist head mechanism in Figure 4

[0030] Sectional view of the flat wire twist head mechanism in Figure 6 Figure 4 Structure diagram of the twist head wire disc of the flat wire twist head mechanism in

[0031] Figure 7 Figure 4

[0032] Figure 8 Figure 3 ​​​​​Structure diagram of the twist head driving mechanism of the multi-layer twist head device in the twist head machine;

[0033] Figure 9 Structure diagram of the twist head driving mechanism of the multi-layer twist head device in the twist head machine; Figure 8 Structure diagram of the twist head driving mechanism of the multi-layer twist head device in the twist head machine;

[0034] Figure 10 Structure diagram of the twist head driving mechanism of the multi-layer twist head device in the twist head machine;

[0035] Figure 11 Structure diagram of the twist head driving mechanism of the multi-layer twist head device in the twist head machine;

[0036] Figure 12 Structure diagram of the twist head driving mechanism of the multi-layer twist head device in the twist head machine; Figure 11 Structure diagram of the twist head driving mechanism of the multi-layer twist head device in the twist head machine;

[0037] In the drawings, various reference signs refer to:

[0038] 10, stator; 11, flat wire; 12, core;

[0039] 100, flat wire twist head mechanism; 111, support shaft; 112, first mounting plate; 113, second mounting plate; 120, twist head wire disc; 121, wire slot; 122, vertical sleeve; 123, horizontal mounting plate; 131, adapter sleeve; 132, adapter bending plate; 140, transmission turntable; 141, first annular protrusion; 142, second annular protrusion; 143, third annular protrusion; 144, first partition cavity; 145, fourth annular protrusion; 146, second partition cavity; 147, second notch; 151, first wear-resistant annular plate; 152, first partition sleeve ring; 154, second partition sleeve ring; 160, third mounting plate; 161, fifth annular protrusion; 170, fourth mounting plate; 171, second through hole; 180, first support column; 190, second gear piece;

[0040] 200, twist head driving mechanism; 210, support seat; 211, first through hole; 220, first rotary driving piece; 230, lifting driving piece; 240, second wear-resistant annular plate; 250, speed reducer; 260, first gear piece; 270, protective shell; 271, first notch; 281, second support column; 282, fifth mounting plate;

[0041] 310, rack; 320, sliding plate; 330, sliding driving piece; 340, detection switch;

[0042] 400, thread clamping mechanism; 410, support; 411, third through hole; 412, sliding groove; 413, third notch; 420, insert assembly; 421, transmission column; 422, clamping piece; 430, thread clamping turntable; 431, arc-shaped groove; 440, second rotary driving piece; 450, third gear piece; 460, fourth gear piece; 470, protection box; 471, fourth notch; 480, limiting ring; 490, cover plate; 491, fourth through hole. DETAILED DESCRIPTION

[0043] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] Figure 1 A schematic view of the structure of the flat wire stator 10. The flat wire stator 10 includes a core 12 and a flat wire 11. The core 12 has a slot for inserting the flat wire 11. The number of slots is between 200 and 300. Each slot can insert multiple layers of flat wires 11, such as 6 layers, 8 layers, 10 layers. The flat wire 11 can generally be selected from copper wire.

[0048] Figure 2 The structure diagram of the head twisting machine is provided for the embodiment. The head twisting machine comprises a rack 310, a wire clamping mechanism 400 and any one of the following multi-layer head twisting devices. The wire clamping mechanism 400 is installed on the rack 310, and is used for clamping the top end of the flat wire 11 of the stator 10 and is located above the flat wire head twisting mechanism 100 of the multi-layer head twisting device. The multi-layer head twisting device further comprises a head twisting driving mechanism 200, and a support seat 210 of the head twisting driving mechanism 200 is installed on the rack 310.

[0049] Figure 3 The structure diagram of the multi-layer head twisting device is provided for the embodiment. The multi-layer head twisting device comprises the flat wire head twisting mechanism 100 and the head twisting driving mechanism 200. Figure 4 The structure diagram of the flat wire head twisting mechanism 100 of the multi-layer head twisting device is provided. Figure 5 The top partial structure diagram of the flat wire head twisting mechanism 100 is provided. Figure 6 The sectional view of the flat wire head twisting mechanism 100 is provided.

[0050] Please refer to Figures 4 to 6 The flat wire head twisting mechanism 100 comprises a support shaft 111, a plurality of head twisting wire discs 120, a plurality of adapter sleeves 131 and a plurality of transmission rotating discs 140. The number of the head twisting wire discs 120, the adapter sleeves 131 and the transmission rotating discs 140 is the same and is one-to-one corresponding. The number of the head twisting wire discs 120 is greater than or equal to the number of the layers of the flat wire 11 of the stator 10. Generally, the number of the head twisting wire discs 120 is equal to the number of the layers of the flat wire 11 of the stator 10. For example, the number of the head twisting wire discs 120, the adapter sleeves 131 and the transmission rotating discs 140 is 6, 8 or 10.

[0051] The plurality of head twisting wire discs 120 are sequentially and rotatably sleeved on the top of the support shaft 111 in the radial direction of the support shaft 111, and the structure is compact. Adjacent two head twisting wire discs 120 can rotate independently of each other. The top of the head twisting wire disc 120 has a plurality of wire grooves 121 distributed in the circumferential direction of the head twisting wire disc 120, and the wire grooves 121 are used for accommodating the flat wire 11. The wire grooves 121 extend in the axial direction of the support shaft 111. The number of the wire grooves 121 is the same as the number of the layers of the flat wire 11 and is between 200 and 300. Please refer to Figure 5 and Figure 6 Eight head twisting wire discs 120 are sequentially sleeved on the top of the support shaft 111, and each two head twisting wire discs 120 are sequentially divided into a group in the radial direction of the support shaft 111. The wire grooves 121 of the two head twisting wire discs 120 in the same group are directed to the wire grooves 121 of the other head twisting wire disc 120. Among them, Figure 5 The outermost group of two head twisting wire discs 120 in the above-mentioned

[0052] Figure 7A structure schematic diagram of a twisted head wire disc 120. At least part of the twisted head wire disc 120 comprises a vertical sleeve 122 and a ring-shaped horizontal mounting plate 123. The vertical sleeve 122 is used to sleeve the support shaft 111, the vertical sleeve 122 has a wire slot 121 on the top side, the bottom end of the vertical sleeve 122 is connected with the horizontal mounting plate 123, the horizontal mounting plate 123 is designed to facilitate the opening of a connecting hole, facilitating the connection with the top end face of the adapter sleeve 131, and facilitating the processing, installation and maintenance of the twisted head wire disc 120.

[0053] Referring to Figure 6 , a plurality of adapter sleeves 131 are sequentially and rotatably sleeved on the middle part of the support shaft 111 along the radial direction of the support shaft 111, the structure is compact and the layout is reasonable, and adjacent two adapter sleeves 131 can rotate independently. The top of the adapter sleeve 131 is connected with the corresponding twisted head wire disc 120, and the bottom of the adapter sleeve 131 is used to connect with the corresponding transmission turntable 140.

[0054] Optionally, in order to facilitate the connection between the adapter sleeve 131 and the twisted head wire disc 120, part of the adapter sleeve 131 is connected with the corresponding twisted head wire disc 120 through an adapter bending plate 132, which facilitates the installation and maintenance of the adapter sleeve 131 and the twisted head wire disc 120, and facilitates processing.

[0055] Optionally, the surface of the adapter sleeve 131 is provided with a lubricating groove, lubricating oil can be added in the lubricating groove, and the design of the lubricating groove can reduce the rotating friction of the adapter sleeve 131 and improve the working efficiency of the flat wire twisted head mechanism 100.

[0056] A plurality of transmission turntables 140 are sequentially and rotatably sleeved on the support shaft 111 from bottom to top. Specifically, the outer diameters of the transmission turntables 140 are the same, facilitating manufacturing, and after installation, the flat wire twisted head mechanism 100 is substantially cylindrical, the outer surface is regular, and the installation, transportation and maintenance are facilitated.

[0057] Optionally, referring to Figure 6 , the outermost twisted head wire disc 120 is connected with the outermost adapter sleeve 131, the outermost adapter sleeve 131 is connected with the topmost transmission turntable 140, and so on. The length of the outermost adapter sleeve 131 is the shortest, the length of the innermost adapter sleeve 131 is the longest, and the length of the adapter sleeve 131 increases from outside to inside. The shapes of the plurality of twisted head wire discs 120 and the plurality of adapter sleeves 131 are substantially the same, and the sizes are different, facilitating manufacturing and installation. The structures of the plurality of transmission turntables 140 are substantially the same.

[0058] In some embodiments, in combination with Figure 6The bottom side of the lowermost transmission disc 140 is provided with a downwardly extending first annular protrusion 141, which is placed on the support base 210, supporting the flat wire head twisting mechanism 100 and reducing the rotational friction area between the lowermost transmission disc 140 and the support base 210.

[0059] Specifically, the flat wire head twisting mechanism 100 further comprises a first wear-resistant annular plate 151, which is installed on the bottom side of the first annular protrusion 141. The first wear-resistant annular plate 151 is configured to enable the lowermost transmission disc 140 to rotate relative to the support base 210 with a long service life and low resistance.

[0060] Figure 8 FIG. 2 is a structural schematic diagram of a head twisting driving mechanism 200 of a multi-layer head twisting device. Specifically, in combination with Figure 6 and Figure 8 The head twisting driving mechanism 200 further comprises a second wear-resistant annular plate 240, which is installed on the top side of the support base 210 and corresponds to the position of the first annular protrusion 141. The second wear-resistant annular plate 240 is configured to reduce the rotational friction resistance between the lowermost transmission disc 140 and the support base 210.

[0061] In some embodiments, please continue to refer to Figure 6 Among the two transmission discs 140 adjacent to each other in the up-down direction, the bottom side of the upper transmission disc 140 is provided with a downwardly extending second annular protrusion 142, and the top side of the lower transmission disc 140 is provided with an upwardly extending third annular protrusion 143. The second annular protrusion 142 and the third annular protrusion 143 are staggered along the circumferential direction of the support shaft 111.

[0062] When the two transmission discs 140 adjacent to each other in the up-down direction are stacked, a first partition cavity 144 is formed between the second annular protrusion 142 and the third annular protrusion 143. The flat wire head twisting mechanism 100 further comprises a first partition sleeve 152 corresponding to the number of the first partition cavities 144, which is installed in the first partition cavity 144 to reduce the rotational friction between the two transmission discs 140 adjacent to each other in the up-down direction, so that the adjacent transmission discs 140 can rotate relative to each other with low friction.

[0063] Specifically, the first partition sleeve 152 is located on the outer side of the transmission disc 140, and the support shaft 111 is located on the inner side of the transmission disc 140, so that the transmission disc 140 rotates more stably.

[0064] Optionally, the first partition sleeve 152 is a shaft sleeve or a bearing.

[0065] Optionally, each first partition sleeve 152 has the same structure, which is conducive to reducing the types of components and facilitating installation and manufacturing.

[0066] In some embodiments, combined with Figure 6 The top side of the uppermost transmission turntable 140 is provided with an upwardly extending fourth annular protrusion 145. The flat wire twisting mechanism 100 also includes a third mounting plate 160, which is movably sleeved on the outermost adapter sleeve 131 and located on the upper side of the transmission turntable 140. The bottom side of the third mounting plate 160 is provided with a downwardly extending fifth annular protrusion 161. The fourth annular protrusion 145 and the fifth annular protrusion 161 form a second partition cavity 146. The flat wire twisting mechanism 100 also includes a second partition collar 154, which is installed in the second partition cavity 146 to reduce the rotational friction between the transmission turntable 140 and the third mounting plate 160, so that the third mounting plate 160 and the uppermost transmission turntable 140 can rotate with low friction.

[0067] Optionally, the first separating collar 152 and the second separating collar 154 have the same structure to reduce the number of components.

[0068] In some embodiments, see Figure 4 The flat wire twisting mechanism 100 also includes a fourth mounting plate 170 and a first support post 180. The fourth mounting plate 170 has a second through hole 171 for receiving a fifth annular protrusion 161 (see...). Figure 6 The fourth mounting plate 170 is mounted on the bottom side of the third mounting plate 160, the top of the first support column 180 is connected to the fourth mounting plate 170, and the bottom of the first support column 180 is connected to the support base 210.

[0069] The fourth mounting plate 170 presses against the uppermost transmission turntable 140, axially limiting its movement. The first support plate serves as a connector and does not obstruct the transmission turntable 140, facilitating the connection between the transmission turntable 140 and the first rotary drive component 220 of the torsion head drive mechanism 200. It also makes the multi-layer torsion head mechanism an open structure, which is convenient for maintenance.

[0070] Optionally, there may be multiple first support columns 180, which are distributed at circumferential intervals along the fourth mounting plate 170. Figure 4 As shown, the tops of the four first support columns 180 are connected to the four corners of the fourth mounting plate 170. The four first support columns 180 are spaced apart and will not obstruct the transmission turntable 140.

[0071] The design of the support shaft 111 ensures the stable installation and rotation of each twisting head coil 120, adapter sleeve 131 and transmission turntable 140, making the flat wire twisting mechanism 100 highly integrated, compact in structure and occupying little space.

[0072] Specifically, in combination Figure 6The flat wire twisting mechanism 100 further comprises a first mounting plate 112 mounted on the top end of the support shaft 111, and the outer diameter of the first mounting plate 112 is less than or equal to the inner diameter of the core 12 of the stator 10. The first mounting plate 112 abuts against the innermost layer of the twisting disc 120, thereby limiting the upper side of the plurality of twisting discs 120. During the twisting operation, the first mounting plate 112 can extend into the stator 10 without blocking the wire slot 121 or preventing the flat wire 11 from entering the wire slot 121.

[0073] Specifically, the bottom of the support seat 210 is provided with a first through hole 211, and the bottom of the support shaft 111 extends through the first through hole 211 to the lower side of the support seat 210 of the twisting driving mechanism 200 (see Figure 3 ) of the flat wire twisting mechanism 100. The flat wire twisting mechanism 100 further comprises a second mounting plate 113 connected to the bottom end of the support shaft 111 and mounted on the bottom side of the support seat 210. The lowermost transmission disc 140 and the second mounting plate 113 are respectively located on the two sides of the support seat 210, thereby achieving stable axial position of the flat wire twisting mechanism 100 on the support shaft 111, reliable structure, and convenient installation.

[0074] Figure 8 A structural schematic view of the twisting driving mechanism 200 of the multi-layer twisting device. Figure 9 An enlarged view of A of the twisting driving mechanism 200 in Figure 8 The twisting driving mechanism 200 comprises a support seat 210, a first rotating driving member 220, and a lifting driving member 230. The middle part of the support seat 210 is used for placing the flat wire twisting mechanism 100, and the support seat 210 is connected to the bottom of the support shaft 111. The number of the first rotating driving member 220 is plural and corresponds to the transmission disc 140 one by one. The plurality of first rotating driving members 220 are sequentially mounted on the support seat 210 around the circumference of the flat wire twisting mechanism 100, thereby achieving compact layout and small space occupation. Each first rotating driving member 220 is connected to the corresponding transmission disc 140 to drive the corresponding transmission disc 140 to rotate, thereby achieving the circumferential feeding of the twisting disc 120. The lifting driving member 230 is used for driving the support seat 210 to lift, thereby achieving the axial feeding of the twisting disc 120.

[0075] Specifically, the lifting driving member 230 is two, and the two lifting driving members 230 are distributed on the opposite sides of the support seat 210. The lifting driving member 230 and the first rotating driving member 220 are jointly distributed around the circumference of the flat wire twisting mechanism 100.

[0076] Specifically, referring to Figure 9, the head twisting driving mechanism 200 further comprises a speed reducer 250 corresponding to the first rotating driving member 220, an input end of the speed reducer 250 extends horizontally and is connected with the first rotating driving member 220, an output end of the speed reducer 250 extends vertically downward and is connected with a first gear member 260, and the transmission turntable 140 is connected with a second gear member 190 (see Figure 4 ) engaged with the first gear member 260. The speed reducer 250 is designed to be bent, which facilitates the horizontal installation of the first rotating driving member 220 to the speed reducer 250 from the outside, and facilitates the horizontal arrangement of the first gear member 260 to be engaged with the second gear member 190 of the transmission turntable 140.

[0077] The first rotating driving member 220 is driven by the gear members to drive the transmission turntable 140, and the transmission is stable and the control is accurate. It can be understood that in other embodiments, the first rotating driving member 220 can also be connected with the transmission turntable 140 by other transmission modes.

[0078] Optionally, in combination with Figure 9 , the head twisting driving mechanism 200 further comprises a protective shell 270 corresponding to the number of speed reducers 250, the protective shell 270 extends vertically and is installed on the support base 210, the protective shell 270 accommodates the output shaft of the speed reducer 250 and the first gear member 260, and the protective shell 270 has a first notch 271, and the first gear member 260 is engaged with the second gear member 190 through the first notch 271. The protective shell 270 protects the first gear member 260 and the output shaft of the speed reducer 250.

[0079] Optionally, referring to Figure 4 , the outer side wall of the transmission turntable 140 has a second notch 147, and the second gear member 190 is installed in the second notch 147.

[0080] Specifically, referring to Figure 8 , the head twisting driving mechanism 200 further comprises a second support column 281. The bottom of the second support column 281 is installed on the support base 210, and the top of the second support column 281 is used to be installed on the rack 310 of the head twisting machine. The second support column 281 realizes the installation of the head twisting driving mechanism 200 on the rack 310, and does not block the first rotating driving member 220 and the lifting driving member 230, so that the head twisting driving mechanism 200 remains an open structure, which is convenient for the maintenance of the staff.

[0081] Optionally, the top of the second support column 281 is connected with a fifth mounting plate 282, and the fifth mounting plate 282 is used to be connected with the rack 310, so as to increase the connection area and improve the connection stability.

[0082] As Figures 10 to 12As shown, the number of the fifth mounting plates 282 is two, which are distributed on opposite sides of the support base 210, and the lifting driving members 230 are mounted on the other opposite sides of the support base 210. The number of the second support columns 281 is four, which are mounted on four corners of the support base 210, and each of the fifth mounting plates 282 corresponds to two of the second support columns 281.

[0083] Optionally, the first rotating driving member 220 and the lifting driving member 230 are motors, air cylinders or oil cylinders.

[0084] Please refer to ​ , the wire clamping mechanism 400 of the head twisting machine will be introduced below.

[0085] The wire clamping mechanism 400 includes a support base 410, a plurality of insert piece assemblies 420, a wire clamping turntable 430 and a second rotating driving member 440. The support base 410 can be directly or indirectly mounted on the rack 310, and has a third through hole 411 and a plurality of sliding grooves 412 distributed along the circumference of the third through hole 411. The number of the sliding grooves 412 is 20-80, the sliding grooves 412 are open above, and extend straight along the radial direction of the support base 410. The third through hole 411 is used to accommodate the stator 10, and the number of the insert piece assemblies 420 is the same as that of the sliding grooves 412. Each of the insert piece assemblies 420 includes a transmission column 421 and a clamping piece 422, the transmission column 421 is connected to the clamping piece 422, and the clamping piece 422 is slidingly installed in the sliding groove 412 one by one. When the clamping piece 422 slides into the third through hole 411, the adjacent two clamping pieces 422 can clamp the flat wire 11 of the stator 10 located in the third through hole 411. When the clamping piece 422 slides out of the third through hole 411, the adjacent two clamping pieces 422 release the flat wire 11. Each of the insert piece assemblies 420 includes two clamping pieces 422, which are similar to two chopsticks, and the two clamping pieces 422 respectively form clamping actions with the clamping pieces 422 of the adjacent insert piece assemblies 420. The clamping pieces 422 are located between the support base 410 and the wire clamping turntable 430, the wire clamping turntable 430 is rotatably mounted on the support base 410, and the wire clamping turntable 430 has an arc-shaped groove 431 corresponding to the transmission column 421. The transmission column 421 extends into the arc-shaped groove 431, and the second rotating driving member 440 is used to drive the wire clamping turntable 430 to rotate, so as to push the clamping pieces 422 to enter or exit the third through hole 411.

[0086] The arc-shaped slot 431 extends along the circumference of the wire clamping turntable 430, and the radius gradually changes, so that when the wire clamping turntable 430 rotates, the transmission column 421 slides along the arc-shaped slot 431, and the radial distance of the transmission column 421 from the third through hole 411 gradually changes, thereby driving the clamping piece 422 to slide in the sliding groove 412 along the support 410. For example, when the wire clamping turntable 430 rotates clockwise, the clamping piece 422 slides in the sliding groove 412 away from the third through hole 411 to loosen the flat wire 11. When the wire clamping turntable 430 rotates counterclockwise, the clamping piece 422 slides in the sliding groove 412 towards the third through hole 411 to clamp the flat wire 11.

[0087] Specifically, the support 410 and the wire clamping turntable 430 are coaxially arranged.

[0088] The second rotary drive 440 drives the wire clamping turntable 430 to rotate, the transmission column 421 slides in the arc-shaped slot 431, and the clamping piece 422 slides in the sliding groove 412 to make the clamping piece 422 enter and exit the third through hole 411. When the clamping piece 422 slides into the third through hole 411, the adjacent two clamping pieces 422 can clamp the flat wire 11 of the stator 10, clamp and straighten the flat wire 11, and facilitate the head twisting operation of the multi-layer head twisting device. Specifically, the head twisting wire disc 120 moves upward under the drive of the lifting drive 230, the flat wire 11 is inserted into the wire slot 121, and the flat wire 11 is twisted under the drive of the first rotary drive 220, and the head twisting wire disc 120 rotates while moving upward.

[0089] In some embodiments, the head twisting machine further comprises a sliding plate 320 and a sliding drive 330. The support 410 is slidingly installed on the rack 310 through the sliding plate 320, the sliding plate 320 has a second through hole 171 corresponding in position to the third through hole 411, and the sliding drive 330 is installed on the rack 310 and is used to drive the sliding plate 320 to slide.

[0090] The wire clamping mechanism 400 is indirectly installed on the rack 310 through the sliding plate 320 and can be slidingly arranged, so as to be aligned with the flat wire twisting mechanism 100 through sliding to ensure that the head twisting operation is successfully completed.

[0091] Optionally, the sliding plate 320 is slidingly installed on the rack 310 through a sliding block sliding rail mechanism.

[0092] In some embodiments, the flat wire 11 carding mechanism further comprises a detection switch 340. The detection switch 340 is installed on the sliding plate 320, and the detection switch 340 is used to detect whether the stator 10 exists in the third through hole 411. The detection switch 340 is electrically connected with the second rotary drive 440 and the multi-layer head twisting device, respectively.

[0093] In one of the embodiments, the thread clamping assembly further comprises a third gear member 450, the peripheral wall of the support 410 has a third notch 413, the third gear member 450 is located in the fourth notch 471 and connected with the thread clamping disc 430, the output shaft of the second rotary driving member 440 is connected with a fourth gear member 460 engaged with the third gear member 450.

[0094] The first gear member 260, the second gear member 190, the third gear member 450 and the fourth gear member 460 can be a complete gear or a part of a gear.

[0095] Specifically, the thread clamping assembly further comprises a protection box 470, the fourth gear member 460 is located in the protection box 470, the protection box 470 has a mounting hole for the output shaft of the second rotary driving member 440 to enter the protection box 470, the protection box 470 is close to the fourth notch 471 on one side of the third gear member 450, so that the fourth gear member 460 is engaged with the third gear member 450 through the fourth notch 471. The arrangement of the protection box 470 can ensure the stable engagement of the fourth gear member 460 and the third gear member 450 and avoid external interference.

[0096] In some embodiments, the thread clamping assembly further comprises a limiting ring 480, the limiting ring 480 is located on the side of the clamping member 422 away from the bottom of the sliding groove 412, so that the clamping member 422 is limitedly mounted in the sliding groove 412. In this way, during the sliding of the clamping member 422 in the sliding groove 412, the clamping member 422 is limited by the limiting ring 480, so as to avoid the clamping member 422 from being lifted and separated from the sliding groove 412.

[0097] In some embodiments, the thread clamping assembly further comprises a cover plate 490, the cover plate 490 is mounted on the support 410, and the cover plate 490 has a fourth through hole 491 corresponding in position to the third through hole 411. The cover plate 490 covers the thread clamping disc 430, so as to protect the movement of the thread clamping disc 430 and the insert piece assembly 420 from external interference.

[0098] The multi-layer head twisting device and the head twisting machine have the following beneficial effects: the lifting driving member 230 drives the support seat 210 and the flat wire head twisting mechanism 100 to feed along the axial direction of the support shaft 111, so that the flat wire 11 gradually extends into the wire slot 121 of the head twisting wire disc 120; the plurality of first rotating driving members 220 respectively drive the corresponding transmission turntable 140 to rotate; each transmission turntable 140 independently drives the corresponding adapter sleeve 131 and the head twisting wire disc 120 to rotate, twists the flat wire 11 in the wire slot 121, and completes the head twisting operation of the flat wire 11. The flat wire head twisting mechanism 100 is open mounted on the support seat 210 and surrounded by the lifting driving member 230 and the plurality of first rotating driving members 220, which is convenient for installation and maintenance; the head twisting wire disc 120, the adapter sleeve 131 and the transmission turntable 140 are distributed from top to bottom along the support shaft 111 and sleeved on the support shaft 111; the head twisting wire disc 120 and the adapter sleeve 131 are nested with each other; the transmission turntable 140 is stacked from bottom to top; the layout is reasonable, the occupied space is small, the structure is compact, the technical problem of the existing head twisting device is solved, the volume of the multi-layer head twisting device is reduced, and the installation and maintenance of the multi-layer head twisting device are facilitated.

[0099] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-layer torsion head device, characterized in that, include: A flat wire twisting mechanism includes a support shaft, a twisting reel, an adapter sleeve, and a transmission turntable. Multiple twisting reels, adapter sleeves, and transmission turntables are provided, each corresponding to a specific reel. The twisting reels are rotatably mounted sequentially on the top of the support shaft along its radial direction. Each twisting reel has multiple grooves distributed circumferentially around its top, used to accommodate flat wire. Multiple adapter sleeves are rotatably mounted sequentially on the middle of the support shaft along its radial direction. The top of each adapter sleeve is connected to a corresponding twisting reel. Multiple transmission turntables are rotatably mounted sequentially on the support shaft from bottom to top, each connected to the bottom of a corresponding adapter sleeve. Each adapter sleeve has its top connected to a corresponding twisting reel, and its bottom connected to a corresponding transmission turntable. A head-twisting drive mechanism includes a support base, a first rotary drive component, and a lifting drive component. The center of the support base is used to place the flat wire head-twisting mechanism. The support base is connected to the bottom of the support shaft. There are multiple first rotary drive components, each corresponding to a transmission turntable. The multiple first rotary drive components are sequentially installed on the support base around the circumference of the flat wire head-twisting mechanism. Each first rotary drive component is connected to the corresponding transmission turntable to drive the corresponding transmission turntable to rotate. The lifting drive component is used to drive the support base to lift. The bottom side of the transmission turntable located at the bottom is provided with a first annular protrusion extending downward, and the first annular protrusion is placed on the support base; In the two adjacent transmission turntables, the bottom side of the upper transmission turntable is provided with a second annular protrusion extending downward, and the top side of the lower transmission turntable is provided with a third annular protrusion extending upward. The second annular protrusion and the third annular protrusion are staggered from each other along the circumference of the support shaft.

2. The multi-layer torsion head device according to claim 1, characterized in that: The flat wire twisting mechanism also includes a first mounting plate, which is mounted on the top of the support shaft. The outer diameter of the first mounting plate is less than or equal to the inner diameter of the stator core. And / or, the bottom of the support base has a first through hole, the bottom of the support shaft extends through the first through hole to the bottom of the support base, and the flat wire twisting mechanism further includes a second mounting plate, the second mounting plate being connected to the bottom end of the support shaft and mounted on the bottom side of the support base.

3. The multi-layer torsion head device according to claim 1, characterized in that: The flat wire twisting mechanism also includes a first wear-resistant circular ring plate, which is installed on the bottom side of the first circular ring protrusion. The torsion drive mechanism also includes a second wear-resistant ring plate, which is installed on the top side of the support base and corresponds to the position of the first ring protrusion.

4. The multi-layer torsion head device according to claim 1, characterized in that: When two adjacent transmission turntables are stacked, a first partition cavity is formed between the second annular protrusion and the third annular protrusion. The flat wire twisting mechanism also includes a first partition collar corresponding to the number of the first partition cavity. The first partition collar is installed in the first partition cavity to reduce the rotational friction between the two adjacent transmission turntables. Each of the first separating collars has the same structure.

5. The multi-layer torsion head device according to claim 1, characterized in that: The top side of the uppermost transmission turntable is provided with an upwardly extending fourth annular protrusion. The flat wire twisting mechanism also includes a third mounting plate, which is movably sleeved on the outside of the adapter sleeve and located on the upper side of the transmission turntable. The bottom side of the third mounting plate is provided with a downwardly extending fifth annular protrusion. The fourth and fifth annular protrusions form a second partition cavity. The flat wire twisting mechanism also includes a second partition collar, which is installed in the second partition cavity to reduce the rotational friction between the transmission turntable and the third mounting plate.

6. The multi-layer torsion head device according to claim 5, characterized in that: The flat wire twisting mechanism further includes a fourth mounting plate and a first support column. The fourth mounting plate has a second through hole for accommodating the fifth annular protrusion. The fourth mounting plate is mounted on the bottom side of the third mounting plate. The top of the first support column is connected to the fourth mounting plate, and the bottom of the first support column is connected to the support base.

7. The multi-layer torsion head device according to claim 1, characterized in that: The torsion drive mechanism further includes a reducer corresponding to the first rotary drive member. The input end of the reducer extends horizontally and is connected to the first rotary drive member. The output end of the reducer extends vertically and is connected to a first gear member. The transmission turntable is connected to a second gear member that meshes with the first gear member.

8. The multi-layer torsion head device according to claim 7, characterized in that: The torsion drive mechanism also includes a protective shell corresponding to the number of reducers. The protective shell extends vertically and is installed on the support base. The protective shell accommodates the output shaft of the reducer and the first gear component. The protective shell has a first notch, through which the first gear component meshes with the second gear component.

9. The multi-layer torsion head device according to any one of claims 1 to 8, characterized in that: The head-turning drive mechanism further includes a second support column, the bottom of which is mounted on the support base, and the top of which is used to mount the head-turning machine frame.

10. A head-twisting machine, characterized in that: The device includes a frame, a wire clamping mechanism, and a multi-layer twisting head device as described in any one of claims 1 to 9. The wire clamping mechanism is mounted on the frame and is used to clamp the top end of the flat wire of the stator and is located above the flat wire twisting head mechanism. The support base is mounted on the frame.

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