Welding device for welding stator core terminal and metal winding

Abstract

The utility model relates to a welding device for welding a stator core terminal and a metal winding wire, which comprises a translation mechanism, a lifting mechanism and a welding mechanism, the welding mechanism comprises a welding rack, a slag receiving disc, a laser emitter used for welding a stator iron core terminal and a metal winding wire and two wire feeding assemblies used for conveying the end of a welding wire to the stator iron core terminal, the wire feeding assemblies and the slag receiving disc are arranged on the welding rack, the laser emitter is arranged on the welding rack and located above the slag receiving disc, and the wire feeding assemblies are arranged on the welding rack and located above the slag receiving disc. The laser transmitter irradiates towards the slag receiving disc, and the two wire feeding assemblies are arranged on the welding machine frame in a left-right mode. The two wire feeding assemblies provide the two welding wires, the positions of the two welding wires are opposite, and during welding, the two molten welding wires can wrap a metal winding wire and a terminal more completely.

Description

Technical Field

[0001] This utility model relates to the technical field of welding equipment for motor production, and in particular to a welding device for welding stator core terminals and metal windings. Background Technology

[0002] Existing laser welding equipment for stator cores is used to weld the stator core terminals to the metal windings, enabling electrical conductivity between the terminals and the metal windings. However, the welding quality of these laser welding devices is unstable, resulting in poor welding effects, such as: 1. large internal porosity in the weld; 2. incomplete weld beading and missing corners; 3. wrinkled, yellowed, and blackened weld points. Therefore, existing laser welding equipment... Utility Model Content

[0003] The purpose of this invention is to provide a welding device for welding stator core terminals and metal windings with stable welding quality.

[0004] The purpose of this utility model is achieved as follows:

[0005] A welding apparatus for welding stator core terminals to metal windings includes a translation mechanism, a lifting mechanism, and a welding mechanism. The translation mechanism includes a translation servo motor and a translation base, with the translation base horizontally sliding and the servo motor driving the translation base to slide horizontally. The lifting mechanism includes a lifting servo motor and a lifting base, with the lifting base sliding vertically on the translation base. The lifting servo motor is located on the translation base and drives the lifting base to slide vertically. The welding mechanism is located on the lifting base and includes a welding frame, a slag receiving tray, a laser emitter for welding stator core terminals to metal windings, and two wire feeding assemblies for feeding the end of the welding wire to the stator core terminals. The wire feeding assemblies and the slag receiving tray are located on the welding frame. The laser emitter is located on the welding frame and above the slag receiving tray, irradiating towards the slag receiving tray. The two wire feeding assemblies are located on the welding frame, one on the left and one on the right. This invention provides two welding wires via two wire feeding assemblies, with the two wires positioned opposite each other. During welding, the laser irradiates the two welding wires, the metal winding, and the terminal, allowing the molten welding wires to more completely encapsulate the metal winding and the terminal. This invention improves the welding process of the laser generator, optimizes the laser spot shape, and also optimizes the welding parameters.

[0006] The present invention can be further improved in the following ways.

[0007] The laser emitter is located directly above the slag receiving tray, and the laser emitter shines vertically downwards.

[0008] The slag receiving tray is provided with a first groove, and a welding avoidance opening is provided on the first groove corresponding to the position of the laser emitter. The welding avoidance opening is located directly below the laser emitter.

[0009] The slag receiving tray is equipped with a second tank, and the welding frame is equipped with a smoke pipe. The lower end of the smoke pipe extends to the slag receiving tray, and the second tank is located near the lower end of the smoke pipe.

[0010] The wire feeding assembly includes a wire roller, a wire feeding motor, a wire feeding drive roller, a three-axis position adjustment device, an mounting tube, and a wire exit needle tube. The wire roller and the wire feeding drive roller are rotatably mounted on the welding frame. The wire feeding motor is mounted on the welding frame and drives the wire feeding drive roller to rotate. The upper end of the mounting tube is connected to the three-axis position adjustment device. The wire exit needle tube is rotatably mounted at the lower end of the mounting tube with the horizontal line as the axis of rotation. The welding wire passes from the wire roller, then around the wire feeding drive roller, and then through the wire exit needle tube.

[0011] The motor shaft of the translation servo motor is connected to the lead screw of the translation seat, and the motor shaft of the lifting servo motor is connected to the lead screw of the lifting seat.

[0012] The laser emitter is equipped with a camera, and the camera's shooting direction is consistent with the laser emitter's emission direction.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This invention employs a servo motor to drive the laser emitter and wire feeding assembly for translation and lifting. Furthermore, the two wire feeding assemblies provide two welding wires positioned opposite each other. During welding, the molten welding wires can more completely wrap the metal winding and terminals. This invention improves the welding process of the laser generator, optimizes the spot shape, and also optimizes the welding parameters.

[0015] 2. This utility model improves the rigidity of the mechanism by using a servo motor to drive the laser emitter and wire feeding assembly to translate and lift, ensuring stability and preventing vibration when the laser emitter moves at high speed, resulting in stable welding and good welding effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the welding device of this utility model for welding stator core terminals and metal windings.

[0017] Figure 2 This is a schematic diagram of the welding device of this utility model for welding stator core terminals and metal windings from another angle.

[0018] Figure 3 This is a structural schematic diagram of the welding device of this utility model for welding stator core terminals and metal windings from a third angle.

[0019] Figure 4 This is a front view of the welding device of this utility model for welding stator core terminals and metal windings.

[0020] Figure 5 This is a schematic diagram of the simplified translation seat structure of the welding device for welding stator core terminals and metal windings according to this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example 1, as Figures 1 to 5 As shown, a welding device for welding stator core terminals to metal windings includes a translation mechanism 1, a lifting mechanism 2, and a welding mechanism 3. The translation mechanism 1 includes a translation servo motor 11 and a translation base 12, with the translation base 12 horizontally slidable. The translation servo motor 11 drives the translation base 12 to slide horizontally. The lifting mechanism 2 includes a lifting servo motor 21 and a lifting base 22, with the lifting base 22 vertically slidable on the translation base 12. The lifting servo motor 21 is mounted on the translation base 12 and drives the lifting base 22 to slide vertically. The welding mechanism 3 is mounted on the lifting seat 22. The welding mechanism 3 includes a welding frame 40, a slag receiving tray 5, a laser emitter 31 for welding stator core terminals and metal windings, and two wire feeding assemblies 4 for feeding the end of the welding wire to the stator core terminals. The wire feeding assemblies 4 and the slag receiving tray 5 are mounted on the welding frame 40. The laser emitter 31 is mounted on the welding frame 40 and located above the slag receiving tray 5. The laser emitter 31 irradiates towards the slag receiving tray 5. The two wire feeding assemblies are mounted on the welding frame, one on the left and one on the right.

[0023] This is a more specific technical solution of the present invention.

[0024] The laser emitter 31 is located directly above the slag receiving tray 5, and the laser emitter 31 shines vertically downwards.

[0025] The slag receiving tray 5 is provided with a first groove 51, and a welding avoidance opening 53 is provided on the first groove 51 at the position corresponding to the laser emitter 31. The welding avoidance opening 53 is located directly below the laser emitter 31.

[0026] A second tank 52 is provided on the slag receiving tray 5, and a smoke extraction pipe 47 is provided on the welding frame 40. The lower end of the smoke extraction pipe 47 extends to the slag receiving tray 5, and the second tank 52 is located near the lower end of the smoke extraction pipe 47. The smoke extraction pipe 47 is connected to an external air pump, which draws in air.

[0027] The wire feeding assembly 4 includes a welding wire roller 41, a wire feeding motor 46, a wire feeding drive roller 42, a three-axis position adjustment device 43, a mounting tube 44, and a wire exit needle tube 45. The welding wire roller 41 and the wire feeding drive roller 42 are rotatably mounted on the welding frame 40. The wire feeding motor 46 is mounted on the welding frame 40 and drives the wire feeding drive roller 42 to rotate. The upper end of the mounting tube 44 is connected to the three-axis position adjustment device 43. The wire exit needle tube 45 is rotatably mounted at the lower end of the mounting tube 44 with the horizontal line as its axis of rotation. The welding wire passes from the welding wire roller 41, then around the wire feeding drive roller 42, and then through the wire exit needle tube 45. The three-axis position adjustment device 43 of this invention is used by the worker to fine-tune the position of the wire exit needle tube 45 in the front-back, left-right, and up-down directions. It is existing technology and will not be described in detail here.

[0028] The motor shaft of the translation servo motor 11 is connected to the lead screw drive of the translation seat 12, and the motor shaft of the lifting servo motor 21 is connected to the lead screw drive of the lifting seat 22.

[0029] The laser emitter 31 is equipped with a camera 32, and the camera 32 is positioned in the same direction as the laser emitter 31.

[0030] The working principle of this utility model is as follows:

[0031] In operation, the stator core is transported to the welding station. At this point, the metal windings of the stator core are pre-connected to the terminals. The translation mechanism 1 and lifting mechanism 2 are activated. The translation servo motor 11 drives the translation seat 12 to slide horizontally until the terminals of the stator core are directly below the welding clearance opening 53. Then, the lifting servo motor 21 drives the lifting seat 22 to slide downwards. Following this, the wire feeding motor 46 drives the wire feeding drive roller 42 to rotate. The rotation of the wire feeding drive roller 42 causes the ends of the welding wires to extend downwards until the ends of the two welding wires abut against the terminals. Then, the laser emitter 3 is activated. 1. The camera 32 and laser emitter 31 begin welding the metal wire and the terminal. The laser emitter 31 irradiates the welding wire, and the two welding wires begin to melt. The solder wraps around the metal wire and the terminal, and the metal wire and the terminal are electrically connected. During the welding process, the laser emitter 31 of this invention will generate welding slag, smoke and water vapor. The smoke and water vapor are sucked away by the smoke extraction pipe 47. The smoke in the smoke extraction pipe 47 condenses into water and flows down into the second tank 52, while the welding slag will fall into the slag receiving tray 5. The camera 32 of this invention records the welding process and effect of the terminal and the metal wire so that the worker can observe it through the display screen.

Claims

1. A welding device for welding a stator core terminal and a metal wire, comprising a translation mechanism, a lifting mechanism and a welding mechanism, characterized in that: The translation mechanism includes a translation servo motor and a translation base. The translation base is horizontally slidable, and the translation servo motor drives the translation base to slide horizontally. The lifting mechanism includes a lifting servo motor and a lifting base. The lifting base is vertically slidable on the translation base. The lifting servo motor is located on the translation base and drives the lifting base to slide vertically. The welding mechanism is located on the lifting base. The welding mechanism includes a welding frame, a slag receiving tray, a laser emitter for welding stator core terminals and metal windings, and two wire feeding assemblies for feeding the end of the welding wire to the stator core terminals. The wire feeding assemblies and the slag receiving tray are located on the welding frame. The laser emitter is located on the welding frame and above the slag receiving tray. The laser emitter irradiates towards the slag receiving tray. The two wire feeding assemblies are located on the left and right sides of the welding frame.

2. The welding apparatus for welding a stator core terminal and a metal wire according to claim 1, characterized by: The laser emitter is located directly above the slag receiving tray, and the laser emitter shines vertically downwards.

3. The welding apparatus for welding a stator core terminal and a metal wire according to Claim 1, characterized by: The slag receiving tray is provided with a first groove, and a welding avoidance opening is provided on the first groove corresponding to the position of the laser emitter. The welding avoidance opening is located directly below the laser emitter.

4. The welding apparatus for welding a stator core terminal and a metal wire according to claim 2, characterized by: The slag receiving tray is equipped with a second tank, and the welding frame is equipped with a smoke pipe. The lower end of the smoke pipe extends to the slag receiving tray, and the second tank is located near the lower end of the smoke pipe.

5. The welding apparatus for welding a stator core terminal and a metal wire according to Claim 1, characterized by: The wire feeding assembly includes a wire roller, a wire feeding motor, a wire feeding drive roller, a three-axis position adjustment device, an mounting tube, and a wire exit needle tube. The wire roller and the wire feeding drive roller are rotatably mounted on the welding frame. The wire feeding motor is mounted on the welding frame and drives the wire feeding drive roller to rotate. The upper end of the mounting tube is connected to the three-axis position adjustment device. The wire exit needle tube is rotatably mounted at the lower end of the mounting tube with the horizontal line as the axis of rotation. The welding wire passes from the wire roller, then around the wire feeding drive roller, and then through the wire exit needle tube.

6. The welding apparatus for welding a stator core terminal and a metal wire according to Claim 1, characterized by: The motor shaft of the translation servo motor is connected to the lead screw of the translation seat, and the motor shaft of the lifting servo motor is connected to the lead screw of the lifting seat.

7. The welding apparatus for welding a stator core terminal and a metal wire according to Claim 1, characterized by: The laser emitter is equipped with a camera, and the camera's shooting direction is consistent with the laser emitter's emission direction.

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