New energy automobile motor three-phase outgoing line terminal double-layer conveying line automatic clamping and welding machine

Abstract

The utility model discloses a double-layer conveying line automatic clamping and welding machine for a three-phase outgoing line terminal of a new energy automobile motor. The double-layer conveying line automatic clamping and welding machine comprises a workbench assembly, a Y-axis translation left-right clamping and welding machine head, a three-axis servo jacking translation rotating positioning table assembly, a double-layer production line assembly and a positioning tool assembly. The utility model relates to the technical field of automatic welding squaring machines. According to the automatic clamping and welding machine for the double-layer conveying line of the three-phase outgoing line terminal of the new energy automobile motor, the Y-axis translation left and right clamping and welding machine head and the three-axis servo jacking translation rotating positioning table assembly are arranged, accurate positioning and welding requirements of a stator three-phase line are met through cooperation of the X axis, the Y axis and the Z axis and movement of a rotating shaft, the labor cost is saved, and the working efficiency is improved. Through the arrangement of the positioning tool assembly, pre-welding positioning of customer products is conducted through the positioning tool assembly, the products can be well installed outside equipment through the tool, the time for people to wait for a machine is shortened, efficiency is improved, meanwhile, the double-layer conveying line is matched, and the site space is saved.

Description

Technical Field

[0001] This utility model relates to the field of automatic welding pressing machine technology, specifically an automatic clamping welding machine for the double-layer conveyor line of three-phase lead wire terminals of new energy vehicle motors. Background Technology

[0002] The three-phase lead terminals of new energy vehicle motors are important components used to connect the internal three-phase windings of new energy vehicle motors to the external electrical system. In the production process of new energy vehicle motors, the welding of the three-phase lead terminals is a critical step. However, some existing semi-automatic welding devices cannot achieve precise positioning of the stator three-phase wires. Most upper and lower welding machines can only feed materials on a single conveyor line, and the return of materials requires additional space and the construction of a new return material conveyor line. Therefore, this utility model provides an automatic clamping welding machine for the three-phase lead terminals of new energy vehicle motors with a double-layer conveyor line. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic clamping and welding machine for the double-layer conveyor line of three-phase lead wire terminals of new energy vehicle motors. It solves the problems that some existing semi-automatic welding devices cannot achieve accurate positioning of the stator three-phase wires, and most upper and lower welding machines can only feed materials on a single conveyor line. The return material also requires additional space and the construction of a new return material conveyor line.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic clamping and welding machine for the double-layer conveyor line of three-phase lead-out terminals of new energy vehicle motors, comprising: a workbench assembly, a Y-axis translational left and right clamping and welding machine head, a three-axis servo lifting translational rotation positioning table assembly, a double-layer production line assembly, and a positioning tooling assembly;

[0005] The Y-axis translational left and right clamping welding head is installed above the worktable assembly. The three-axis servo lifting translational rotational positioning table assembly is fixed in front of the worktable assembly. The double-layer production line assembly is installed above the three-axis servo lifting translational rotational positioning table assembly. The positioning fixture assembly moves above the double-layer production line assembly.

[0006] Preferably, the workbench assembly includes a workbench welding frame, an electrical box is welded to the inner surface of the workbench welding frame, an electrical box door is installed on one side of the electrical box via a hinge, left and right door panels are installed on the left side of the workbench welding frame via a hinge, front and left and right door panels are installed on the front side of the workbench welding frame via a hinge, and a welding controller, a solenoid valve assembly, and a float flow meter are installed on the surface of the workbench welding frame.

[0007] Preferably, the Y-axis translational left and right clamping welding head includes a head mounting base plate fixedly installed above the welding frame of the worktable. A Y-axis servo motor is provided on the top of the head mounting base plate. The Y-axis servo motor controls the Y-axis movement of the Y-axis welding head through a lead screw assembly. Symmetrical left and right welding cylinders are installed on the top of the head mounting base plate. The output end of the left welding cylinder is fixedly connected to the left welding base, and the output end of the right welding cylinder is fixedly connected to the right welding base. A drag chain and an oiler are installed on the top of the head mounting base plate. An electro-proportional valve is installed on one side of each welding cylinder. A head protective cover is installed on the top of the head mounting base plate, and a fume extraction pipe fixing seat is installed on the top of the head protective cover.

[0008] Preferably, the three-axis servo lifting, translating, and rotating positioning stage assembly includes a lifting platform welded frame. Left and right support seats are mounted on the top of the lifting platform welded frame, and feet are fixedly connected to the bottom of the lifting platform welded frame. Symmetrical foot fixing plates are mounted on both sides of the lifting platform welded frame. An X-axis fixing plate is mounted on the top of the left and right support seats. An X-axis servo motor and an X-axis guide rail are fixedly connected to one side of the X-axis fixing plate. One end of the output shaft of the X-axis servo motor is fixedly connected to an X-axis lead screw via a coupling. A Z-axis fixing plate is threaded onto the surface of the X-axis lead screw. An XZ axis lubricator is installed on one side of the fixed plate. The interior of the Z-axis fixed plate is slidably connected to the surface of the X-axis guide rail. A Z-axis servo motor and a Z-axis guide rail are installed on one side of the Z-axis fixed plate. One end of the output shaft of the Z-axis servo motor causes the Z-axis ball screw to rotate on one side of the Z-axis fixed plate through a synchronous pulley mechanism. An R-axis L-shaped fixed seat is threadedly connected to the surface of the Z-axis ball screw. The interior of the R-axis L-shaped fixed seat is slidably connected to the surface of the Z-axis guide rail. An R-axis servo motor is fixedly connected to one side of the R-axis L-shaped fixed seat. An R-axis reducer is installed at the output end of the R-axis servo motor.

[0009] Preferably, the double-layer production line assembly includes a conveyor frame, with a double-speed chain conveyor line installed on the top of the conveyor frame. A three-phase asynchronous motor and a reducer are fixedly connected to one side of the double-speed chain conveyor line. The double-speed chain conveyor line is driven by the three-phase asynchronous motor and the reducer to realize the upper layer feeding operation. A lower layer return line is installed on the inner side of the conveyor frame and below the double-speed chain conveyor line. The lower layer return line uses gravity to return the lower layer workpieces.

[0010] Preferably, the positioning fixture assembly includes a fixing ring, which is locked onto the customer stator. A lifting support column is installed on the top of the fixing ring, and a fixture fixing plate is installed on the upper end of the lifting support column. The fixture fixing plate forms a hinge mechanism with the wire clamping fixing plate through a positioning pin. A knob is provided on the top of the wire clamping fixing plate, a wire fixing plate is installed on the surface of the fixture fixing plate, and a wire pressing plate is installed on the surface of the wire clamping fixing plate. Beneficial effects

[0011] This utility model provides an automatic clamping and welding machine for the double-layer conveyor line of the three-phase lead wire terminals of new energy vehicle motors. Compared with the prior art, it has the following advantages:

[0012] 1. This automatic clamping and welding machine for the double-layer conveyor line of the three-phase lead wire terminals of the new energy vehicle motor is equipped with a Y-axis translational left and right clamping and welding machine head and a three-axis servo lifting translational rotation positioning table assembly. By utilizing the XYZ three-axis coordination and the movement of the rotating axis, it achieves the precise positioning and welding requirements of the stator three-phase wires, saving labor costs.

[0013] 2. This automatic clamping and welding machine for the three-phase lead wire terminals of new energy vehicle motors, with double-layer conveyor line, is equipped with positioning fixture components. These components are used to position the customer's products before welding. The fixtures can be mounted on the outside of the equipment, reducing the time spent waiting for the machine and improving efficiency. At the same time, the double-layer conveyor line saves space. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the automatic left and right clamping welding machine for motor lead wire terminals according to this utility model;

[0015] Figure 2 This is a schematic diagram of the workbench assembly of the automatic left and right clamping welding machine for motor lead wire terminals according to this utility model;

[0016] Figure 3 This is a schematic diagram of the Y-axis translational left and right clamping welding head structure of the automatic left and right clamping welding machine for motor lead wire terminals of this utility model;

[0017] Figure 4 This is a schematic diagram of the double-layer production line assembly of the automatic left and right clamping welding machine for motor lead wire terminals of this utility model.

[0018] Figure 5 This is a schematic diagram of the three-axis servo lifting, translation, and rotation positioning table assembly of the automatic left and right clamping welding machine for motor lead wire terminals of this utility model.

[0019] Figure 6 This is a schematic diagram of the positioning tooling assembly of the automatic left and right clamping welding machine for motor lead wire terminals according to this utility model.

[0020] In the diagram: 1-Workbench assembly, 2-Y-axis translational welding head, 3-Three-axis servo lifting translational rotation positioning table assembly, 4-Double-layer production line assembly, 5-Positioning fixture assembly, 6-Workbench welding frame, 7-Electrical control box door, 8-Electrical control box, 9-Front door left and right panels, 10-Welding controller, 11-Left left and right door panels, 12-Solenoid valve assembly, 13-Float flowmeter, 14-Oil injector, 15-Left and right welding cylinders, 16-Electrical proportional valve, 17-Left welding base, 18-Right welding base, 19-Headpiece protective cover, 20-Exhaust pipe fixing seat, 21-Transformer, 22-Z-axis servo motor, 23-Lifting table welding frame, 24-Left and right support seats, 25-X-axis fixing plate. 26-X-axis guide rail, 27-X-axis lead screw, 28-XZ-axis oiler, 29-X-axis servo motor, 30-Z-axis fixing plate, 31-Z-axis servo motor, 32-synchronous pulley mechanism, 33-Z-axis guide rail, 34-Z-axis ball screw, 35-R-axis servo motor, 36-R-axis reducer, 37-drag chain, 38-L-type fixed seat, 39-foot cup, 40-foot fixing plate, 41-double speed chain conveyor line, 42-three-phase asynchronous motor, 43-reducer, 44-lower layer return line, 45-fixing ring, 46-lifting support column, 47-tooling fixing plate, 48-wire clamping fixing plate, 49-knob, 50-wire fixing plate, 51-wire pressing plate, 52-positioning pin, 53-machine head mounting base plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a technical solution:

[0023] Automatic clamping and welding machine for double-layer conveyor line of three-phase lead wire terminals of new energy vehicle motor, including: workbench assembly 1, Y-axis translational left and right clamping and welding machine head 2, three-axis servo lifting translational rotation positioning table assembly 3, double-layer production line assembly 4, and positioning tooling assembly 5;

[0024] The Y-axis translational left and right clamping welding head 2 is installed above the worktable assembly 1. The three-axis servo lifting translational rotational positioning table assembly 3 is fixed in front of the worktable assembly 1. The double-layer production line assembly 4 is installed above the three-axis servo lifting translational rotational positioning table assembly 3. The positioning fixture assembly 5 moves above the double-layer production line assembly 4.

[0025] In this embodiment, the workbench assembly 1 includes a workbench welding frame 6. An electrical box 8 is welded to the inner surface of the workbench welding frame 6. An electrical box door 7 is installed on one side of the electrical box 8 via a hinge. A left left and right door panel 11 is installed on the left side of the workbench welding frame 6 via a hinge. A front left and right door panel 9 is installed on the front side of the workbench welding frame 6 via a hinge. A welding controller 10, a solenoid valve assembly 12, and a float flow meter 13 are installed on the surface of the workbench welding frame 6.

[0026] In this embodiment, the Y-axis translational left and right clamping welding head 2 includes a head mounting base plate 53 fixedly installed above the workbench welding frame 6. A Y-axis servo motor 22 is provided on the top of the head mounting base plate 53. The Y-axis servo motor 22 controls the Y-axis movement of the Y-axis welding head through a lead screw assembly. Symmetrical left and right welding cylinders 15 are installed on the top of the head mounting base plate 53. The output end of the left left and right welding cylinders 15 is fixedly connected to the left welding base 17, and the output end of the right left and right welding cylinders 15 is fixedly connected to the right welding base 18. A drag chain 37 and an oiler 14 are installed on the top of the head mounting base plate 53. An electro-proportional valve 16 is installed on one side of the left and right welding cylinders 15. A head protective cover 19 is installed on the top of the head mounting base plate 53, and a smoke extraction pipe fixing seat 20 is installed on the top of the head protective cover 19.

[0027] The oiler 14 provides lubricating oil to the guide rail screw, the transformer 21 controls the welding output current to provide welding energy, the drag chain 37 protects the Y-axis movement of the wires, cooling water pipes and air pipes, the electric proportional valve 16 controls the air pressure of the left and right welding cylinders to control the welding pressure of the left and right clamping welding, the machine head protective cover 19 protects the moving parts of the machine head, and the smoke extraction pipe fixing seat 20 fixes the smoke extraction pipe.

[0028] In this embodiment, the three-axis servo lifting, translation, and rotation positioning stage assembly 3 includes a lifting platform welded frame 23. Left and right support seats 24 are mounted on the top of the lifting platform welded frame 23. Foot cups 39 are fixedly connected to the bottom of the lifting platform welded frame 23. Symmetrical foot fixing plates 40 are mounted on both sides of the lifting platform welded frame 23. An X-axis fixing plate 25 is mounted on the top of the left and right support seats 24. An X-axis servo motor 29 and an X-axis guide rail 26 are fixedly connected to one side of the X-axis fixing plate 25. One end of the output shaft of the X-axis servo motor 29 is fixedly connected to an X-axis lead screw 27 via a coupling. A Z-axis fixing plate 30 is threaded onto the surface of the X-axis lead screw 27. An XZ axis oiler 28 is installed on one side of the Z axis. The interior of the Z axis fixing plate 30 is slidably connected to the surface of the X axis guide rail 26. A Z axis servo motor 31 and a Z axis guide rail 33 are installed on one side of the Z axis fixing plate 30. One end of the output shaft of the Z axis servo motor 31 causes the Z axis ball screw 34 to rotate on one side of the Z axis fixing plate 30 through a synchronous pulley mechanism 32. An R axis L-shaped fixing seat 38 is threadedly connected to the surface of the Z axis ball screw 34. The interior of the R axis L-shaped fixing seat 38 is slidably connected to the surface of the Z axis guide rail 33. An R axis servo motor 35 is fixedly connected to one side of the R axis L-shaped fixing seat 38. An R axis reducer 36 is installed at the output end of the R axis servo motor 35.

[0029] Foot cups 37 are installed below the welded frame 23 of the lifting platform to adjust the height; foot fixing plates 40 are installed on the left and right sides of the welded frame 23 of the lifting platform to ensure the overall stability of the mechanism; X-axis fixing plates 25 are installed above the left and right support seats 24, and X-axis servo motors 29, X-axis lead screws 27, and X-axis guide rails 26 fixed on the X-axis fixing plates 25 form an X-axis translation mechanism to perform X-axis movement; Z-axis servo motors 31, through synchronous wheel mechanisms 32, Z-axis guide rails 33, and Z-axis ball screws 34 form a Z-axis motion mechanism, which is installed on the Z-axis fixing plates 30 and performs Z-axis movement; R-axis servo motors 35 and R-axis reducers 36 are fixed on the R-axis L-shaped fixing seats 38 to form an R-axis rotation mechanism, and the R-axis rotation of the components is performed by the rotation of the motors.

[0030] The synchronous pulley mechanism 32 mainly consists of a synchronous belt and synchronous pulleys. One end of the output shaft of the Z-axis servo motor 31 is fixedly connected to a synchronous pulley via a coupling. The synchronous pulley drives another set of synchronous pulleys to rotate via the synchronous belt. The other set of synchronous pulleys is fixedly connected to one end of the Z-axis ball screw 34, which causes the Z-axis servo motor 31 to rotate on one side of the Z-axis fixed plate 30 when it starts.

[0031] By setting up a Y-axis translational left and right clamping welding head 2 and a three-axis servo lifting translational rotation positioning table assembly 3, the precise positioning and welding requirements of the stator three-phase lines are achieved by utilizing the XYZ three-axis coordination and the movement of the rotation axis, saving labor costs.

[0032] In this embodiment, the double-layer production line assembly 4 includes a conveyor frame. A double-speed chain conveyor 41 is provided on the top of the conveyor frame. A three-phase asynchronous motor 42 and a reducer 43 are fixedly connected to one side of the double-speed chain conveyor 41. The double-speed chain conveyor 41 is driven by the three-phase asynchronous motor 42 and the reducer 43 to realize the upper layer feeding operation. A lower layer return line 44 is installed on the inner side of the conveyor frame and below the double-speed chain conveyor 41. The lower layer return line 44 uses gravity to return the lower layer workpieces.

[0033] The double-speed chain conveyor line 41 consists of sprockets, chains, and tooling plates mounted on the chains. The tooling plates are used to carry the stators of new energy vehicle motors. Their size and structure can be customized according to different models of motor stators. The lower return line 44 also adopts chain drive as the double-speed chain conveyor line 41. It is used to return the tooling plates after welding or the empty tooling plates to the starting position to form a circular conveyor.

[0034] The three-phase asynchronous motor 42 drives the sprocket to rotate through the reducer 43, thereby driving the chain to run on the track. The tooling plate moves along the conveyor line with the movement of the chain, and the motor stator is conveyed to each station in sequence, including the welding station. After the welding and other processes are completed, the tooling plate enters the lower return line 44 through the transfer device and returns to the starting position along the lower track to prepare for the next conveying task.

[0035] In this embodiment, the positioning fixture assembly 5 includes a fixing ring 45, which is locked onto the customer stator. A lifting support column 46 is installed on the top of the fixing ring 45, and a fixture fixing plate 47 is installed on the upper end of the lifting support column 46. The fixture fixing plate 47 forms a hinge mechanism with the wire clamping fixing plate 48 through a positioning pin 52. A knob 49 is provided on the top of the wire clamping fixing plate 48. A wire fixing plate 50 is installed on the surface of the fixture fixing plate 47, and a wire pressing plate 51 is installed on the surface of the wire clamping fixing plate 48.

[0036] By setting up positioning fixture component 5, the customer's product is positioned before welding. The fixture can be installed outside the equipment, reducing the time people spend waiting for the machine and improving efficiency. At the same time, it saves space when used with a double-layer conveyor line.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] During operation, the positioning fixture component 5 is used to position the customer's product. Then, the positioning fixture component 5 is placed on the upper layer of the double-layer production line component 4 for feeding. The Y-axis servo motor 22 moves the Y-axis translation welding head 2 to the welding position. The three-axis servo lifting, translation, and rotating positioning table component 3 forms an X-axis translation mechanism through the X-axis servo motor 29, X-axis lead screw 27, and X-axis guide rail 26 fixed on the X-axis fixed plate 25, which performs X-axis movement. The Z-axis servo motor 31 forms a Z-axis movement mechanism through the synchronous pulley mechanism 32, Z-axis guide rail 33, and Z-axis ball screw 34, which is mounted on the Z-axis fixed plate 30 and performs Z-axis movement. The R-axis servo motor 35 and R-axis reducer 36 are fixed on the R-axis L-shaped fixed seat 38 to form an R-axis rotation mechanism. The product is moved to the welding position on the machine head by the X-axis, Z-axis and R-axis motion mechanisms. The welding pressure is applied by the left and right welding cylinders 15, and the welding current is applied by the transformer 21 and the welding controller 10 to provide the energy for welding. The welding is completed with precise control according to the required post-weld dimensions preset by the displacement sensor, which improves production efficiency and pass rate. The X-axis, Z-axis and R-axis rotation mechanisms work together to weld the customer's stator three-phase wires. After welding, the product returns to its original position and is then fed forward to the designated position through the upper layer of the double-layer production line assembly 4. It is then observed and checked by a person. After it is found to be correct, it is placed on the lower layer return mechanism of the double-layer production line assembly 4 for return to the designated position.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic clamping and welding machine for the double-layer conveyor line of three-phase lead terminals of new energy vehicle motors, characterized in that, include: Workbench assembly (1), Y-axis translational left and right clamping welding head (2), three-axis servo lifting translational rotation positioning table assembly (3), double-layer production line assembly (4) and positioning tooling assembly (5); The Y-axis translational left and right clamping welding head (2) is installed above the workbench assembly (1), the three-axis servo lifting translational rotational positioning table assembly (3) is fixed in front of the workbench assembly (1), the double-layer production line assembly (4) is installed above the three-axis servo lifting translational rotational positioning table assembly (3), and the positioning fixture assembly (5) moves above the double-layer production line assembly (4).

2. The automatic clamping and welding machine for the double-layer conveyor line of the three-phase lead wire terminals of the new energy vehicle motor according to claim 1, characterized in that: The workbench assembly (1) includes a workbench welding frame (6), an electrical box (8) is welded to the inner surface of the workbench welding frame (6), an electrical box door (7) is installed on one side of the electrical box (8) via a hinge, a left left and right door panel (11) is installed on the left side of the workbench welding frame (6) via a hinge, a front door left and right door panel (9) is installed on the front side of the workbench welding frame (6), and a welding controller (10), a solenoid valve group (12) and a float flow meter (13) are installed on the surface of the workbench welding frame (6).

3. The automatic clamping and welding machine for the double-layer conveyor line of the three-phase lead wire terminals of the new energy vehicle motor according to claim 1, characterized in that: The Y-axis translational left and right clamping welding head (2) includes a head mounting base plate (53) fixedly installed above the workbench welding frame (6). A Y-axis servo motor (22) is provided on the top of the head mounting base plate (53). The Y-axis servo motor (22) controls the Y-axis movement of the Y-axis welding head through a screw assembly. Symmetrical left and right welding cylinders (15) are installed on the top of the head mounting base plate (53). The output end of the left left welding cylinder (15) is fixedly connected to the left welding base (17), and the output end of the right left welding cylinder (15) is fixedly connected to the right welding base (18). A drag chain (37) and an oiler (14) are installed on the top of the head mounting base plate (53). An electric proportional valve (16) is installed on one side of the left and right welding cylinders (15). A head protective cover (19) is installed on the top of the head mounting base plate (53), and a smoke extraction pipe fixing seat (20) is installed on the top of the head protective cover (19).

4. The automatic clamping and welding machine for the double-layer conveyor line of the three-phase lead wire terminals of the new energy vehicle motor according to claim 1, characterized in that: The three-axis servo lifting, translation, and rotation positioning stage assembly (3) includes a lifting platform welded frame (23). Left and right support seats (24) are mounted on the top of the lifting platform welded frame (23). Foot cups (39) are fixedly connected to the bottom of the lifting platform welded frame (23). Symmetrical foot fixing plates (40) are mounted on both sides of the lifting platform welded frame (23). An X-axis fixing plate (25) is mounted on the top of the left and right support seats (24). An X-axis servo motor (29) and an X-axis guide rail (26) are fixedly connected to one side of the X-axis fixing plate (25). One end of the output shaft of the X-axis servo motor (29) is fixedly connected to an X-axis lead screw (27) via a coupling. A Z-axis fixing plate (30) is threaded onto the surface of the X-axis lead screw (27). An XZ axis oiler (28) is installed on one side of the Z axis. The interior of the Z axis fixing plate (30) is slidably connected to the surface of the X axis guide rail (26). A Z axis servo motor (31) and a Z axis guide rail (33) are installed on one side of the Z axis fixing plate (30). One end of the output shaft of the Z axis servo motor (31) is connected to the Z axis ball screw (34) through a synchronous wheel mechanism (32), which causes the Z axis ball screw (34) to rotate on one side of the Z axis fixing plate (30). The surface of the Z axis ball screw (34) is threadedly connected to an R axis L-shaped fixing seat (38). The interior of the R axis L-shaped fixing seat (38) is slidably connected to the surface of the Z axis guide rail (33). An R axis servo motor (35) is fixedly connected to one side of the R axis L-shaped fixing seat (38). An R axis reducer (36) is installed at the output end of the R axis servo motor (35).

5. The automatic clamping and welding machine for the double-layer conveyor line of the three-phase lead wire terminals of the new energy vehicle motor according to claim 1, characterized in that: The double-layer production line assembly (4) includes a conveyor frame, and a double-speed chain conveyor (41) is provided on the top of the conveyor frame. A three-phase asynchronous motor (42) and a reducer (43) are fixedly connected to one side of the double-speed chain conveyor (41). The double-speed chain conveyor (41) is driven by the three-phase asynchronous motor (42) and the reducer (43) to realize the upper layer feeding operation. A lower layer return line (44) is installed on the inner side of the conveyor frame and below the double-speed chain conveyor (41). The lower layer return line (44) uses gravity to return the lower layer workpieces.

6. The automatic clamping and welding machine for the double-layer conveyor line of the three-phase lead wire terminals of the new energy vehicle motor according to claim 1, characterized in that: The positioning fixture assembly (5) includes a fixing ring (45) which is locked onto the customer stator. A lifting support column (46) is installed on the top of the fixing ring (45). A fixture fixing plate (47) is installed on the upper end of the lifting support column (46). The fixture fixing plate (47) forms a hinge mechanism with the wire clamping fixing plate (48) through a positioning pin (52). A knob (49) is provided on the top of the wire clamping fixing plate (48). A wire fixing plate (50) is installed on the surface of the fixture fixing plate (47). A wire clamping plate (51) is installed on the surface of the wire clamping fixing plate (48).

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