Laser welding machine

Abstract

The utility model provides a laser welding machine. The laser welding machine comprises a rack; the tray is used for supporting the stator; the feeding transverse moving unit is mounted on the rack and supports the tray; the feeding jacking unit is mounted on the rack; the welding platform is mounted on the rack; and the laser welding unit is mounted on the rack and is arranged above the welding platform. The stator can be transferred from the feeding position to the jacking position through the feeding transverse moving unit, the stator can be transferred from the jacking position to the welding position through the feeding jacking unit, the stator can be supported and positioned through cooperation of the welding platform and the feeding jacking unit, and the stator can be welded through the laser welding unit. The welded stator can be transferred to the feeding transverse moving unit through the feeding jacking unit, the feeding transverse moving unit can transfer the stator from the jacking position to the feeding position, and discharging of the stator is achieved. According to the laser welding machine, full-automatic welding operation of the stator can be achieved, manual cooperation is not needed, the labor cost is reduced, and the operation risk is small.

Description

Technical Field

[0001] The present application belongs to the field of motor technology, and more specifically, relates to a laser welding machine. Background Art

[0002] After the stator is inserted with flat wires, it needs to be moved to the welding position of the welding machine for welding. However, during the movement and welding process, the stator's position must be manually adjusted to accurately move it to the loading or welding position. This increases labor costs and introduces certain operational risks. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a laser welding machine to solve the problems existing in the related art: manual adjustment of the position of the stator increases labor costs and has greater operational risks.

[0004] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

[0005] A laser welding machine is provided, comprising:

[0006] A frame, wherein the frame is provided with a loading position, a lifting position and a welding position;

[0007] a tray for supporting the stator;

[0008] A loading and traversing unit is installed on the frame and supports the tray, and is used to drive the tray to move back and forth between the loading position and the lifting position;

[0009] A loading and lifting unit, installed at the lifting position, for driving the tray to move back and forth between the lifting position and the welding position;

[0010] A welding platform, installed at the welding position, for supporting and positioning the stator;

[0011] A laser welding unit is installed on the frame and arranged above the welding platform, and is used for welding the stator.

[0012] In one embodiment, the loading transverse movement unit includes a loading rack, a loading plate movably mounted on the loading rack, and a loading drive for driving the loading plate to move back and forth; the loading drive is mounted on the loading rack, the loading drive is connected to the loading plate, and a through hole is provided on the loading plate for the loading lifting unit to pass through; the tray is mounted on the loading plate, and the loading lifting unit is arranged below the loading plate.

[0013] In one embodiment, the tray includes a supporting chassis and a plurality of supporting seats mounted on the supporting chassis in a circular array, and each of the supporting seats is provided with a step portion for cooperating with and resisting the stator.

[0014] In one embodiment, a positioning slot is formed on the outer peripheral surface of the stator along its axial direction; the tray further comprises a positioning seat mounted on at least one of the support seats, and the positioning seat is provided with a positioning ridge inserted into the positioning slot.

[0015] In one embodiment, a loading positioning column is installed on the loading plate, and a loading positioning hole for inserting the loading positioning column is opened on the supporting chassis.

[0016] In one embodiment, the loading and lifting unit includes a lifting plate, a rotating disk for supporting the stator, a rotating drive for driving the rotating disk to rotate, and a lifting drive for driving the lifting plate to rise and fall; the rotating drive is installed on the lifting plate, the rotating drive is connected to the rotating disk, the lifting drive is installed on the frame, and the lifting drive is connected to the lifting plate.

[0017] In one embodiment, a lifting and positioning column is installed on the rotating disk, and a lifting and positioning hole for inserting the lifting and positioning column is opened on the supporting chassis.

[0018] In one embodiment, the welding platform comprises:

[0019] A bracket is mounted on the frame, and the bracket is provided with an opening for the stator to extend into;

[0020] A plurality of positioning plates are arranged in a circular array along the edge of the opening and are used for cooperating with the stator for positioning;

[0021] A dust hood is installed on the bracket and covers the opening, and a welding hole is provided on the top of the dust hood.

[0022] In one embodiment, the welding platform further includes an exhaust pipe installed at one end of the dust hood and an air blowing nozzle installed at the other end of the dust hood; the exhaust pipe and the air blowing nozzle are respectively connected to the dust hood.

[0023] In one embodiment, the laser welding unit includes a welding frame installed on the frame, a laser for welding the stator, a welding lifting module for driving the laser to lift and lower, a welding longitudinal movement module for driving the laser to move longitudinally, and a welding transverse movement module for driving the laser to move transversely; the laser is installed on the welding lifting module, the welding lifting module is installed on the welding longitudinal movement module, the welding longitudinal movement module is installed on the welding transverse movement module, and the welding transverse movement module is installed on the welding frame.

[0024] The laser welding machine provided in the embodiments of the present application has at least the following beneficial effects: the stator can be transported from the loading position to the lifting position by the loading transverse movement unit, and the stator can be transported from the lifting position to the welding position by the loading lifting unit. The stator can be supported and positioned by the welding platform and the loading lifting unit in cooperation, and the stator can be welded by the laser welding unit. After welding, the stator can be transferred from the loading lifting unit to the loading transverse movement unit, and the loading transverse movement unit can transport the stator from the lifting position to the loading position to realize the unloading of the stator. The laser welding machine can realize fully automatic stator welding operations without the need for human cooperation, reducing labor costs and reducing operational risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 A schematic diagram of the structure of the connection between the stator and the welding tooling provided in an embodiment of the present application;

[0027] Figure 2 A schematic structural diagram of a laser welding machine provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of the stator supported by the loading and lateral movement unit provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of the connection between the loading rack and the tray provided in an embodiment of the present application;

[0030] Figure 5 A schematic structural diagram of a loading and lifting unit provided in an embodiment of the present application;

[0031] Figure 6 A schematic structural diagram of a welding platform provided in an embodiment of the present application;

[0032] Figure 7 for Figure 6 Schematic diagram of the structure after removing the dust cover;

[0033] Figure 8 This is a schematic structural diagram of the laser welding unit provided in an embodiment of the present application.

[0034] Among them, the main marks of the drawings in the figure are:

[0035] 10. Stator; 101. Positioning slot; 20. Welding tool; 201. Alignment plate; 202. Alignment hole;

[0036] 1. Frame;

[0037] 2. Pallet; 21. Support chassis; 211. Loading positioning hole; 212. Lifting positioning hole; 22. Support seat; 221. Step portion; 23. Positioning seat; 231. Positioning ridge;

[0038] 3. Loading transverse movement unit; 31. Loading rack; 32. Loading plate; 321. Through hole; 322. Loading positioning column; 33. Loading drive member;

[0039] 4. Loading jacking unit; 41. Jacking plate; 42. Rotating plate; 421. Jacking positioning column; 43. Rotating drive member; 44. Jacking drive member; 45. Jacking guide column;

[0040] 5. Welding platform; 51. Bracket; 511. Opening; 52. Positioning plate; 521. Positioning guide rod; 53. Dust hood; 531. Welding hole; 54. Waste pipe; 55. Air nozzle;

[0041] 6. Laser welding unit; 61. Welding frame; 62. Laser; 63. Welding lifting module; 64. Welding longitudinal movement module; 65. Welding transverse movement module. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0043] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0045] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0047] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout this specification, not all references are to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0048] For ease of description, we define three mutually perpendicular coordinate axes in space as the X-axis, the Y-axis, and the Z-axis. The direction along the X-axis is the longitudinal direction, the direction along the Y-axis is the transverse direction, and the direction along the Z-axis is the vertical direction. The X-axis and Y-axis are two mutually perpendicular coordinate axes in the same horizontal plane, and the Z-axis is the vertical coordinate axis. The X-axis, Y-axis, and Z-axis are located in three mutually perpendicular planes in space: the XY plane, the YZ plane, and the XZ plane. The XY plane is a horizontal plane, the XZ plane and the YZ plane are both vertical planes, and the XZ plane is perpendicular to the YZ plane. The three axes in space are the X-axis, Y-axis, and Z-axis. Movement along these three axes in space refers to movement along the three mutually perpendicular axes in space, specifically movement along the X-axis, Y-axis, and Z-axis in space. Planar movement, on the other hand, refers to movement in the XY plane.

[0049] Please note that Figure 1 Before welding the stator 10, the flat wire on the stator 10 needs to be clamped by the welding fixture 20 to improve the welding quality. The two ends of the welding fixture 20 can be respectively installed with a positioning plate 201, and each positioning plate 201 has a positioning hole 202.

[0050] See also Figure 2 and Figure 3 , the laser welding machine provided in the embodiment of the present application is now described. The laser welding machine includes a frame 1, a pallet 2, a loading transverse movement unit 3, a loading jacking unit 4, a welding platform 5 and a laser welding unit 6. The frame 1 is provided with a loading position, a jacking position and a welding position. The loading transverse movement unit 3 is mounted on the frame 1, and the pallet 2 is mounted on the loading transverse movement unit 3. The loading transverse movement unit 3 is used to drive the pallet 2 to move back and forth between the loading position and the jacking position. The loading jacking unit 4 is mounted on the frame 1, and the loading jacking unit 4 is set at the jacking position. The loading jacking unit 4 can lift the pallet 2 and the stator 10, and can drive the pallet 2 and the stator 10 to move back and forth between the jacking position and the welding position. The welding position is set above the jacking position, and the welding platform 5 is mounted on the frame 1, and the welding platform 5 is set at the welding position. The welding platform 5 can cooperate with the loading jacking unit 4 to support and position the stator 10. The laser welding unit 6 is mounted on the frame 1 and is located above the welding platform 5. The laser welding unit 6 can perform welding on the stator 10. In this structure, the stator 10 can be transferred from the loading position to the jacking position by the loading transverse movement unit 3, and the stator 10 can be transferred from the jacking position to the welding position by the loading jacking unit 4. The stator 10 can be supported and positioned by the welding platform 5 in cooperation with the loading jacking unit 4, and the stator 10 can be welded by the laser welding unit 6. After welding, the stator 10 can be transferred from the loading jacking unit 4 to the loading transverse movement unit 3, and the loading transverse movement unit 3 can transfer the stator 10 from the jacking position to the loading position to realize the unloading of the stator 10. The laser welding machine can realize the fully automatic welding operation of the stator 10 without the need for manual cooperation, reducing labor costs and low operational risks.

[0051] In one embodiment, see Figure 3 and Figure 4 As a specific embodiment of the laser welding machine provided in the embodiment of the present application, the loading transverse movement unit 3 includes a loading frame 31, a loading plate 32 movably mounted on the loading frame 31, and a loading drive 33 for driving the loading plate 32 to move back and forth; the loading drive 33 is mounted on the loading frame 31, and the loading drive 33 is connected to the loading plate 32. The loading plate 32 is provided with a through hole 321 for the loading jacking unit 4 to pass through; the tray 2 is mounted on the loading plate 32, and the loading jacking unit 4 is arranged below the loading plate 32. Specifically, the loading plate 32 can be movably mounted on the loading frame 31 via a guide rail pair. The loading drive 33 can be a cylinder transmission mechanism, a screw transmission mechanism, a slide linear mechanism, etc., and is not limited to the above. This structure can support the pallet 2 through the loading plate 32; the loading plate 32 can be driven to move back and forth along the X-axis through the loading drive 33, thereby realizing the movement of the pallet 2; the loading lifting unit 4 can be avoided through the through hole 321, so that the loading lifting unit 4 can pass through and lift the pallet 2.

[0052] In one embodiment, see Figure 4 As a specific embodiment of the laser welding machine provided in the embodiment of the present application, the tray 2 includes a support chassis 21 and a plurality of support seats 22 installed in a circular array on the support chassis 21. Each support seat 22 is provided with a step portion 221 that cooperates with the stator 10 to resist. Specifically, the plurality of support seats 22 are arranged vertically, so that space can be reserved for the flat wire of the stator 10 to prevent the flat wire from touching the support chassis 21. In this structure, the stator 10 can be supported by the plurality of support seats 22; the stator 10 can be limited by the step portion 221 to prevent the stator 10 from shifting during movement. Among them, each support seat 22 is locked to the support chassis 21 by fasteners such as screws and bolts. Each support seat 22 can be installed at a different position on the support chassis 21. That is, by adjusting the installation position of the plurality of support seats 22, it can be adapted to stators 10 of different sizes, thereby improving wide adaptability.

[0053] In one embodiment, see Figure 1 and Figure 4 As a specific embodiment of the laser welding machine provided in an embodiment of the present application, the outer peripheral surface of the stator 10 is provided with a positioning slot 101 along its axial direction. The tray 2 also includes a positioning seat 23 mounted on at least one support seat 22. The positioning seat 23 is provided with a positioning protrusion 231 that inserts into the positioning slot 101. This structure, through the alignment of the positioning protrusion 231 and the positioning slot 101, can effectively position the stator 10, preventing the stator 10 from shifting during movement.

[0054] In one embodiment, see Figure 4 As a specific embodiment of the laser welding machine provided in the present application, a loading plate 32 is mounted with a loading positioning post 322, and a loading positioning hole 211 is provided on the support chassis 21 for insertion of the loading positioning post 322. This structure, through the alignment of the loading positioning post 322 and the loading positioning hole 211, can improve the alignment accuracy between the support chassis 21 and the loading plate 32 and prevent positional displacement of the support chassis 21 during movement. The number of loading positioning posts 322 can be two, and the number of loading positioning holes 211 can also be two.

[0055] In one embodiment, see Figure 5 As a specific embodiment of the laser welding machine provided in the embodiment of the present application, the loading and lifting unit 4 includes a lifting plate 41, a rotating disk 42 for supporting the stator 10, a rotating driving member 43 for driving the rotating disk 42 to rotate, and a lifting driving member 44 for driving the lifting plate 41 to rise and fall; the rotating driving member 43 is installed on the lifting plate 41, and the rotating driving member 43 is connected to the rotating disk 42, and the lifting driving member 44 is installed on the frame 1, and the lifting driving member 44 is connected to the lifting plate 41. Among them, the rotating driving member 43 can be a rotary motor, and the lifting driving member 44 can be a cylinder or an electric cylinder, which is not the only limitation here. The lifting plate 41 is connected to a lifting guide column 45, which is movably installed on the frame 1 along the Z axis. The lifting guide column 45 can play a directional guiding role when the lifting plate 41 is raised and lowered. In this structure, the lifting plate 41 and the rotating disk 42 can be driven through the through hole 321 of the loading plate 32 by the lifting drive 44, and the rotating disk 42 can support the stator 10. The lifting drive 44 can drive the rotating disk 42 to rotate, thereby improving the alignment accuracy of the stator 10 and the welding platform 5.

[0056] In one embodiment, see Figure 4 and Figure 5 As a specific embodiment of the laser welding machine provided in an embodiment of the present application, a jacking and positioning column 421 is installed on the rotating disk 42, and a jacking and positioning hole 212 is provided on the supporting chassis 21 for the jacking and positioning column 421 to be inserted. This structure, through the alignment of the jacking and positioning column 421 and the jacking and positioning hole 212, can achieve the positioning of the tray 2 and the rotating disk 42. In this way, the rotating disk 42 can drive the tray 2 and the stator 10 to rotate, and the position of the stator 10 can be adjusted. The number of jacking and positioning columns 421 is two, and the number of jacking and positioning holes 212 can also be two.

[0057] In one embodiment, see Figure 1 、 Figure 6 and Figure 7As a specific embodiment of the laser welding machine provided in the embodiment of the present application, the welding platform 5 includes a bracket 51, a plurality of positioning plates 52 and a dust cover 53. Specifically, the bracket 51 is mounted on the frame 1, and an opening 511 for the stator 10 to extend into is provided on the bracket 51. A plurality of positioning plates 52 are arranged in a circular array along the edge of the opening 511. A positioning guide rod 521 is installed on each positioning plate 52. The positioning guide rod 521 can be inserted into the alignment hole 202 on the alignment plate 201, thereby achieving the positioning of the bracket 51 and the stator 10. The dust cover 53 is mounted on the bracket 51, and the dust cover 53 covers the opening 511. A welding hole 531 is provided on the top of the dust cover 53. With this structure, the stator 10 lifted by the loading and lifting unit 4 can be positioned in cooperation with the plurality of positioning plates 52. The laser emitted by the laser welding unit 6 can pass through the welding hole 531 and act on the stator 10 to achieve the welding operation. The dust cover 53 can provide shielding and protection.

[0058] In one embodiment, see Figure 6 As a specific embodiment of the laser welding machine provided in an embodiment of the present application, the welding platform 5 further includes an exhaust pipe 54 mounted on one end of a dust hood 53 and an air blowing nozzle 55 mounted on the other end of the dust hood 53. The exhaust pipe 54 and the air blowing nozzle 55 are respectively connected to the dust hood 53. With this structure, the gas blown by the air blowing nozzle 55 can pass through the welding position of the stator 10, thereby discharging impurities remaining after welding through the exhaust pipe 54.

[0059] In one embodiment, see Figure 8 As a specific embodiment of the laser welding machine provided in the embodiment of the present application, the laser welding unit 6 includes a welding frame 61 mounted on the frame 1, a laser 62 for welding the stator 10, a welding lifting module 63 for driving the laser 62 to rise and fall, a welding longitudinal movement module 64 for driving the laser 62 to move longitudinally, and a welding transverse movement module 65 for driving the laser 62 to move transversely; the laser 62 is mounted on the welding lifting module 63, the welding lifting module 63 is mounted on the welding longitudinal movement module 64, the welding longitudinal movement module 64 is mounted on the welding transverse movement module 65, and the welding transverse movement module 65 is mounted on the welding frame 61. Among them, the welding lifting module 63, the welding longitudinal movement module 64, and the welding transverse movement module 65 can all be cylinder transmission mechanisms, screw transmission mechanisms, slide linear mechanisms, etc., and no limitation is made here. The laser 62 can be an IPG laser. This structure, through the welding lifting module 63, welding longitudinal movement module 64, and welding transverse movement module 65, can drive the laser 62 to achieve multi-directional movement along the X, Y, and Z axes, and cooperate with the rotation drive member 43 to drive the stator 10 to rotate, thereby achieving all-round welding of the stator 10. The laser light emitted by the laser 62 can pass through the welding hole 531 to achieve the welding operation.

[0060] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A laser welding machine, characterized in that: include: A frame, wherein the frame is provided with a loading position, a lifting position and a welding position; a tray for supporting the stator; A loading and traversing unit is installed on the frame and supports the tray, and is used to drive the tray to move back and forth between the loading position and the lifting position; A loading and lifting unit, installed at the lifting position, for driving the tray to move back and forth between the lifting position and the welding position; A welding platform, installed at the welding position, for supporting and positioning the stator; A laser welding unit is installed on the frame and arranged above the welding platform, and is used for welding the stator.

2. The laser welding machine according to claim 1, characterized in that: The loading transverse movement unit includes a loading rack, a loading plate movably mounted on the loading rack, and a loading drive for driving the loading plate to move back and forth; the loading drive is mounted on the loading rack, the loading drive is connected to the loading plate, and a through hole is provided on the loading plate for the loading lifting unit to pass through; the tray is mounted on the loading plate, and the loading lifting unit is arranged below the loading plate.

3. The laser welding machine according to claim 2, characterized in that: The tray includes a supporting chassis and a plurality of supporting seats which are installed on the supporting chassis in a circular array. Each of the supporting seats is provided with a step portion which cooperates with the stator to resist.

4. The laser welding machine according to claim 3, characterized in that: The outer peripheral surface of the stator is provided with a positioning slot along its axial direction; the tray further comprises a positioning seat mounted on at least one of the support seats, and the positioning seat is provided with a positioning ridge inserted into the positioning slot.

5. The laser welding machine according to claim 3, characterized in that: A loading positioning column is installed on the loading plate, and a loading positioning hole for inserting the loading positioning column is opened on the supporting chassis.

6. The laser welding machine according to claim 3, characterized in that: The loading and lifting unit includes a lifting plate, a rotating disk for supporting the stator, a rotating drive for driving the rotating disk to rotate, and a lifting drive for driving the lifting plate to rise and fall; the rotating drive is installed on the lifting plate, the rotating drive is connected to the rotating disk, the lifting drive is installed on the frame, and the lifting drive is connected to the lifting plate.

7. The laser welding machine according to claim 6, characterized in that: A lifting and positioning column is installed on the rotating disk, and a lifting and positioning hole for inserting the lifting and positioning column is opened on the supporting chassis.

8. The laser welding machine according to any one of claims 1 to 7, characterized in that: The welding platform comprises: A bracket is mounted on the frame, and the bracket is provided with an opening for the stator to extend into; A plurality of positioning plates are arranged in a circular array along the edge of the opening and are used for cooperating with the stator for positioning; A dust hood is installed on the bracket and covers the opening, and a welding hole is provided on the top of the dust hood.

9. The laser welding machine according to claim 8, characterized in that: The welding platform further includes a waste discharge pipe installed at one end of the dust hood and an air blowing nozzle installed at the other end of the dust hood; the waste discharge pipe and the air blowing nozzle are respectively communicated with the dust hood.

10. The laser welding machine according to any one of claims 1 to 7, characterized in that: The laser welding unit includes a welding frame installed on the frame, a laser for welding the stator, a welding lifting module for driving the laser to rise and fall, a welding longitudinal movement module for driving the laser to move longitudinally, and a welding transverse movement module for driving the laser to move transversely; the laser is installed on the welding lifting module, the welding lifting module is installed on the welding longitudinal movement module, the welding longitudinal movement module is installed on the welding transverse movement module, and the welding transverse movement module is installed on the welding frame.

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