A flat wire motor stator welding clamping device

Abstract

The application provides a flat wire motor stator welding clamping device, which comprises a column body, a plurality of rotating shafts arranged on the column body, a plurality of sliding shafts arranged on the column body, grooves formed in the sliding shafts, a plurality of clamping jaws coaxially connected with the rotating shafts and the sliding shafts, a rotating ring installed on the column body, a plurality of arc-shaped holes formed in the rotating ring, and a plurality of driving rods, the two ends of the driving rods are respectively inserted into the grooves and the arc-shaped holes, and the side wall of the driving rod is in contact with the column body. The rotating shafts and the sliding shafts are alternately arranged in the circumferential direction, and the rotating shafts and the sliding shafts are arranged in the radial direction of the column body. The application can improve the efficiency of the flat wire motor stator welding.

Description

Technical Field

[0001] This invention relates to the field of electric motors, and more specifically to a stator welding clamping device for a flat wire motor. Background Technology

[0002] With the development of new energy vehicles, flat wire motors, as the power source for these vehicles, have also been widely used. In the stator windings of a flat wire motor, multiple flat wires are first inserted into the stator core, and then the ends of the flat wires are connected by welding. Several sets of flat wire joints arranged in a circular row around the core axis are exposed on the stator core; during welding, the radial copper wire joints need to be welded in pairs.

[0003] Because the windings involve numerous connecting wires and many joints requiring welding, current welding fixtures for flat wire stators include disc clamping fixtures, conductive clamping fixtures, and rotary jaw fixtures. When using disc clamping fixtures, they must be installed before the lead wires are cut flat, thus affecting the cutting process. When using conductive clamping fixtures, welding is performed one point or two to three weld points at a time, which is time-consuming and inefficient. Rotary jaw fixtures clamp the flat wire by rotating each radial jaw, but they cannot effectively clamp the flat wire in the radial direction of the stator. Summary of the Invention

[0004] This invention proposes a welding clamping device for flat wire motor stators, which can be used to solve the problem of low production efficiency of current welding tooling for flat wire stators, and the following technical solution can be proposed.

[0005] This invention proposes a stator welding clamping device for flat wire motors, comprising:

[0006] Column body;

[0007] Multiple rotating shafts are rotatably mounted on the column body;

[0008] Multiple sliding shafts are rotatably mounted on the column body, and grooves are formed on the sliding shafts;

[0009] Multiple grippers are coaxially connected to the rotating shaft and the sliding shaft;

[0010] A dial ring, rotatably mounted on the column body, has multiple arc-shaped holes circumferentially formed therein; and

[0011] Multiple drive levers, with their two ends inserted into the groove and the arc-shaped hole respectively, and the sidewall of the drive levers contacting the column body;

[0012] The rotating shaft and the sliding shaft are arranged alternately in the circumferential direction, and the rotation axis of the rotating shaft and the rotation axis of the sliding shaft are located in the radial direction of the column body.

[0013] In one embodiment of the present invention, the flat wire motor stator welding clamping device further includes:

[0014] A toothed ring, rotatably mounted on the column body; and

[0015] Multiple gears are mounted circumferentially on the column body, with the rotation axis of the gears located in the radial direction of the column body, and the gears meshing with the gear ring.

[0016] The rotating shaft and the sliding shaft are coaxially connected to the gear.

[0017] In one embodiment of the present invention, the flat wire motor stator welding clamping device further includes:

[0018] A roller is rotatably connected to the drive lever. The roller is located inside the arc-shaped hole, and the direction of the roller's axis is parallel to the direction of the arc-shaped hole.

[0019] In one embodiment of the present invention, two grooves are formed on one of the sliding shafts, the two grooves are symmetrical on the sliding shafts, and the bottom of the drive lever is inserted into the two grooves respectively.

[0020] In one embodiment of the present invention, the gripper includes:

[0021] gripper body;

[0022] Multiple protrusions are disposed on the gripper body, and the multiple protrusions are symmetrically positioned on the gripper body; and

[0023] An inclined wall is provided between two adjacent protrusions on one side of the gripper body.

[0024] In one embodiment of the present invention, the width of the gripper body increases continuously from one end to the other end, the end with the largest width of the gripper body is located on the side close to the outer wall of the annular body, and the end with the smallest width of the gripper body is located on the side close to the axis of the annular body.

[0025] In one embodiment of the present invention, the protrusion is provided with an inclined surface, the protrusion is in the shape of a quadrangular prism, and the longitudinal section of the protrusion is in the shape of a trapezoid.

[0026] In one embodiment of the present invention, a plurality of the protrusions are arranged in a centrally symmetrical manner on the gripper body.

[0027] In one embodiment of the present invention, the inclination direction of the inclined wall is the same as the inclination direction of the inclined surface.

[0028] In one embodiment of the present invention, the center lines of the plurality of arc-shaped holes are not collinear with the center line of the column body, and the plurality of arc-shaped holes are arranged in a centrally symmetrical manner on the dial ring.

[0029] This invention proposes a stator welding clamping device for flat wire motors, which improves the welding efficiency of flat wire motor stators while ensuring the reliability of flat wire end welding. Attached Figure Description

[0030] Figure 1 This is a top view of a flat wire motor stator welding clamping device according to the present invention.

[0031] Figure 2 This is a perspective view of a flat wire motor stator welding clamping device according to the present invention.

[0032] Figure 3 For the present invention Figure 1 A schematic diagram of the AA' cross-section.

[0033] Figure 4 This is a schematic diagram of the rotating shaft and sliding shaft in a stator welding clamping device for a flat wire motor according to the present invention.

[0034] Figure 5 This is a schematic diagram of the connection of the drive lever in the stator welding clamping device for a flat wire motor according to the present invention.

[0035] Figure 6 This is a schematic diagram showing the position of the drive lever in a stator welding clamping device for a flat wire motor according to the present invention.

[0036] Figure 7 This is a schematic diagram of the roller connection in a flat wire motor stator welding clamping device of the present invention.

[0037] Figure 8 This is a schematic diagram showing the position of the rollers in a stator welding clamping device for a flat wire motor according to the present invention.

[0038] Figure 9 This is a schematic diagram of the jaw structure in a flat wire motor stator welding clamping device of the present invention.

[0039] Figure 10 This is a front view of the clamping jaws in a flat wire motor stator welding clamping device according to the present invention.

[0040] Figure 11 This is a right view of the clamping jaws in a flat wire motor stator welding clamping device according to the present invention.

[0041] Figure 12 This is a schematic diagram of the flat wire structure in this invention.

[0042] In the diagram: 10. Column body;

[0043] 20. Gear ring; 21. Gear rack; 22. Gear ring lever

[0044] 30. Gear;

[0045] 40. Rotating shaft; 41. Fixing hole;

[0046] 50. Sliding pivot; 51. Groove; 52. Connecting hole;

[0047] 60. Gripper; 61. Gripper body; 62. Protrusion; 621. Angled surface; 63. Angled wall; 64. Mounting hole;

[0048] 70. Toggle ring; 71. Arc-shaped hole; 72. Toggle ring lever;

[0049] 80. Drive lever;

[0050] 90; Roller;

[0051] 100. Flat wire; 110. End. Detailed Implementation

[0052] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0053] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0054] Please see Figures 1-12 As shown, this invention proposes a flat wire motor stator welding clamping device, which can be applied to the field of cable and wire clamping processing, such as cable and wire clamping and cutting, and cable and wire clamping and packaging. Specifically, this invention can be applied to the field of flat wire motor stator welding, clamping the ends 110 of the flat wires 100 of the flat wire motor stator. Multiple flat wires 100 can be clamped simultaneously to improve the welding efficiency of the stator windings in the flat wire motor stator. Detailed descriptions are provided below through specific embodiments.

[0055] Please see Figures 1-4As shown, in some embodiments, the stator welding clamping device for a flat wire motor proposed in this invention may include a column body 10, a gear ring 20, a gear 30, a rotating shaft 40, a sliding shaft 50, a gripper 60, a dial ring 70, and a drive lever 80. The column body 10 serves as the mounting body of the stator welding clamping device for the flat wire motor, and can be fitted onto the locking end and welding end of the stator core. The specific shape of the column body 10 is not limited; it can be a circular ring column body or a polygonal ring column body. For example, in this application, the column body 10 is a circular ring column body. During specific installation and use, the axis of the column body 10 is collinear with the axis of the stator core. The gear ring 20 is rotatably mounted on the column body 10. The gear ring 20 is circular in shape, and its axis is collinear with the axis of the column body 10. The gear ring 20 can be located on a horizontal plane. A rack 21 may be arranged on the top or bottom end face of the gear ring 20. The direction of the rack 21 may be perpendicular to the plane on which the gear ring 20 is located, and the rack 21 may be in a closed-loop circular shape. Multiple gears 30 may be mounted circumferentially on the column body 10, and may be arranged axially symmetrically on the column body 10. The rotation axes of the multiple gears 30 may be located in the radial direction of the column body 10, that is, each gear 30 may be located in a vertical plane. The multiple gears 30 may mesh with the gear ring 20. Circumferentially rotating the gear ring 20, when the gear ring 20 rotates circumferentially along its axis, the gear ring 20 may drive the multiple gears 30 to rotate, and the multiple gears 30 may rotate along their respective axes.

[0056] Please see Figure 1 and Figure 4 As shown, in some embodiments, there can be multiple rotating shafts 40 and sliding shafts 50. Multiple rotating shafts 40 and multiple sliding shafts 50 can be coaxially connected to the gear 30. The rotating shafts 40 and sliding shafts 50 can be arranged alternately circumferentially. The sliding shaft 50 may have a groove 51. The specific shape of the groove 51 is not limited; it can be ellipsoidal, hemispherical, strip-shaped, or cuboid. For example, the groove 51 can be cuboid. The arrangement direction of the groove 51 can be the same as the arrangement direction of the sliding shaft 50, that is, the groove 51 can be located in the radial direction of the column body 10. The groove 51 can connect the upper end face and the lower end face of the sliding shaft 50. There can be multiple grippers 60, and multiple grippers 60 can be coaxially connected to the rotating shafts 40 and sliding shafts 50. Multiple gears 30 can rotate along their respective axes, driving the rotating shaft 40 and the sliding shaft 50 to rotate. The rotating shaft 40 and the sliding shaft 50 can further drive the gripper 60 to rotate. In the stator of the flat wire motor, the end 110 of the flat wire 100 can be located between two circumferentially adjacent grippers 60. After the two circumferentially adjacent grippers 60 rotate, they can achieve circumferential clamping of the end 110.

[0057] Please see Figure 1 and Figure 4 As shown, in some embodiments, the dial ring 70 is rotatably mounted on the column body 10. The dial ring 70 is circular in shape, and its axis is collinear with the axis of the column body 10. The dial ring 70 can be located on a horizontal plane. Multiple arc-shaped holes 71 are circumferentially formed on the dial ring 70. These arc-shaped holes 71 are symmetrically arranged on the dial ring 70 and penetrate the top and bottom end faces of the dial ring 70, respectively. The axis of the multiple arc-shaped holes 71 is not collinear with the axis of the column body 10. Multiple drive levers 80 can be present. The two ends of each drive lever 80 can be inserted into the groove 51 and the arc-shaped hole 71, respectively. That is, the top of the drive lever 80 can be inserted into the arc-shaped hole 71, and the bottom of the drive lever 80 can be inserted into the groove 51. The number of drive levers 80 is the same as the number of sliding shafts 50. The drive levers 80 can be located in a vertical plane, and their sidewalls are in contact with the column body 10. The circumferentially rotating ring 70 rotates circumferentially along its axis. Because the axes of the multiple arc-shaped holes 71 are not collinear with the axis of the column body 10, the driving lever 80 can drive the sliding shaft 50 to move radially along the column body 10 under the limiting action of the arc-shaped holes 71 and the column body 10. After the sliding shaft 50 moves radially along the column body 10, the jaws 60 on the sliding shaft 50 and the jaws 60 on the circumferentially adjacent rotating shaft 40 can radially clamp the end 110.

[0058] Please see Figures 5-8 As shown, in some embodiments, the flat wire motor stator welding clamping device of the present invention may further include a roller 90, which can be sleeved on the top of the drive lever 80. The roller 90 is rotatably connected to the drive lever 80. The roller 90 can be located inside the arc-shaped hole 71, and the outer wall of the roller 90 can roll in contact with the inner wall of the arc-shaped hole 71. The rolling connection between the roller 90 and the arc-shaped hole 71 can avoid wear between the roller 90 and the arc-shaped hole 71, increasing the service life of the roller 90. Two grooves 51 can be formed on a sliding shaft 50, and the two grooves 51 can be symmetrically arranged on the sliding shaft 50. Correspondingly, the bottom of a drive lever 80 can be inserted into the two grooves 51 respectively. The drive lever 80 applies force to both sides of the sliding shaft 50 respectively, which can maintain the force balance of the sliding shaft 50 and increase the stability of the sliding shaft 50 during movement.

[0059] Please see Figures 9-11As shown, in some embodiments, the gripper 60 may include a gripper body 61, protrusions 62, and inclined walls 63. The gripper body 61 can serve as the mounting body for the gripper 60, and the gripper body 61 may be strip-shaped. The width of the gripper body 61 can continuously increase from one end to the other. The end with the largest width of the gripper body 61 may be located near the outer wall of the annular body 10, and the end with the smallest width of the gripper body 61 may be located near the centerline of the annular body 10. There may be multiple protrusions 62, and the multiple protrusions 62 may be of the same size. The multiple protrusions 62 may be fixedly disposed between the two ends of the gripper body 61. An inclined wall 63 may be provided on one side of the gripper body 61 between two adjacent protrusions 62. Since the stator core is annular cylindrical, the spacing between adjacent circumferential flat wires near the outer wall of the stator core is larger, and the spacing between adjacent circumferential flat wires near the inner wall of the stator core is smaller. The widest end of the two gripper bodies 61 can be positioned close to the outer wall of the stator core, while the narrowest end can be positioned close to the inner wall of the stator core. The width of the gripper bodies 61 can continuously increase from one end to the other, adapting to the annular cylindrical shape of the stator core.

[0060] Please see Figures 9-11 As shown, in some embodiments, the multiple protrusions 62 may be in the shape of a quadrangular prism with a trapezoidal cross-section, and an inclined surface 621 may be provided on the protrusion 62. The inclination direction of the inclined wall 63 may be the same as the inclination direction of the inclined surface 621. The multiple protrusions 62 may be centrally symmetrically arranged along the arrangement direction of the gripper body 61, that is, on one side of the gripper body 61, the lower bottom surface of the multiple protrusions 62 may coincide with the upper bottom surface of the gripper body 61, and on the other side of the gripper body 61, the lower bottom surface of the multiple protrusions 62 may coincide with the lower bottom surface of the gripper body 61. The multiple protrusions 62 may be centrally symmetrically arranged along the arrangement direction of the gripper body 61. When the gear ring 20 rotates circumferentially along its axis, the gear ring 20 may drive the multiple gears 30 to rotate, and the multiple gears 30 may rotate along their respective axes. Multiple gears 30 rotate, driving the rotating shaft 40 and the sliding shaft 50 to rotate, which in turn drives the gripper 60 to rotate. The circumferentially adjacent rotating shafts 40 and 50 rotate in the same direction, and the grippers 60 on the rotating shaft 40 and the sliding shaft 50 engage with each other. At this time, the inclined surface 621 of the protrusion 62 on the rotating shaft 40 and the inclined surface 621 of the protrusion 62 on the sliding shaft 50 are opposite to and in contact with each other, forming a hole between the inclined wall 63 on the rotating shaft 40 and the inclined wall 63 on the sliding shaft 50. This hole can be used to accommodate the end 110 of the flat wire 100.

[0061] Please see Figures 9-11As shown, in some embodiments, when the circumferentially rotating ring 70 is rotated, the ring 70 rotates circumferentially along its axis, and the driving lever 80 can drive the sliding shaft 50 to move in the radial direction of the column body 10. The sliding shaft 50 moves in the radial direction of the column body 10, and the gripper 60 on the sliding shaft 50 moves in the radial direction of the column body 10. The protrusion 62 on the sliding shaft 50 moves in the radial direction and approaches each other in the radial direction with the protrusion 62 on the circumferentially adjacent rotating shaft 40, which can radially clamp the end 110 of the flat wire 100.

[0062] Please see Figure 4 and Figure 9 As shown, in some embodiments, the rotating shaft 40 and the gear 30 can be connected by a key. The sliding shaft 50 and the gear 30 can be connected by a sliding key. The rotating shaft 40 may have a fixing hole 41, the sliding shaft 50 may have a connecting hole 52, and the gripper 60 may have a mounting hole 64. The gripper 60 can be connected to the rotating shaft 40 and the sliding shaft 50 by a pin.

[0063] Please see Figure 1 As shown, in some embodiments, a gear ring lever 22 can be fixedly installed on the side wall of the gear ring 20. The gear ring lever 22 can drive the gear ring 20 to rotate circumferentially. The gear ring lever 22 can be driven to rotate circumferentially by manual operation or a motor, and the gear ring lever 22 can further drive the gear ring 20 to rotate circumferentially. A dial ring lever 72 can be installed on the side wall of the dial ring 70. The dial ring lever 72 can drive the dial ring 70 to rotate circumferentially. The dial ring lever 72 can be driven to rotate circumferentially by manual operation or a motor, and the dial ring lever 72 can further drive the dial ring 70 to rotate circumferentially.

[0064] In summary, this invention proposes a stator welding clamping device for flat wire motors, which can clamp all the flat wires in the stator core circumferentially and radially, thus clamping the flat wires from four directions. While ensuring the reliability of the flat wire end welding, it improves the efficiency of flat wire motor stator welding.

[0065] The above description is merely a preferred embodiment of this application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by replacing the above-mentioned features with technical features with similar functions disclosed in this application (but not limited to) each other.

[0066] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this invention, the other technical features will not be described in detail here.

Claims

1. A stator welding clamping device for a flat wire motor, characterized in that, include: Column body; Multiple rotating shafts are rotatably mounted on the column body; Multiple sliding shafts are rotatably mounted on the column body, and grooves are formed on the sliding shafts; Multiple grippers are coaxially connected to the rotating shaft and the sliding shaft. Each gripper includes a gripper body and protrusions. The protrusions are arranged on both sides of the gripper body, and an inclined wall is formed between two adjacent protrusions on the same side of the gripper body. A hole is formed between the inclined wall on the rotating shaft and the inclined wall on the sliding shaft to accommodate the end of the flat wire. A dial ring is rotatably mounted on the column body, and the dial ring has multiple arc-shaped holes circumferentially formed; wherein the dial ring and the column body have the same axis of rotation, and the multiple arc-shaped holes have different axes of rotation from the column body; and Multiple drive levers are inserted into the groove and the arc-shaped hole at their two ends, respectively, and the sidewalls of the drive levers are in contact with the column body; under the limitation of the arc-shaped hole and the column body, the drive levers drive the sliding shaft to move along the radial direction of the column body; The rotating shaft and the sliding shaft are arranged alternately in the circumferential direction, and the rotation axis of the rotating shaft and the rotation axis of the sliding shaft are located in the radial direction of the column body.

2. The flat wire motor stator welding clamping device according to claim 1, characterized in that, The flat wire motor stator welding clamping device further includes: A toothed ring, rotatably mounted on the column body; and Multiple gears are mounted circumferentially on the column body, with the rotation axis of the gears located in the radial direction of the column body, and the gears meshing with the gear ring. The rotating shaft and the sliding shaft are coaxially connected to the gear.

3. The flat wire motor stator welding clamping device according to claim 1, characterized in that, The flat wire motor stator welding clamping device further includes: A roller is rotatably connected to the drive lever. The roller is located inside the arc-shaped hole, and the direction of the roller's axis is parallel to the direction of the arc-shaped hole.

4. The flat wire motor stator welding clamping device according to claim 1, characterized in that, Two grooves are formed on one of the sliding shafts, and the two grooves are symmetrical on the sliding shaft. The bottom of the drive lever is inserted into the two grooves respectively.

5. The flat wire motor stator welding clamping device according to claim 1, characterized in that, The number of protrusions is multiple, and the multiple protrusions are disposed on the gripper body, and the positions of the multiple protrusions on the gripper body are symmetrical.

6. The flat wire motor stator welding clamping device according to claim 5, characterized in that, The width of the gripper body increases continuously from one end to the other. The end with the largest width of the gripper body is located on the side close to the outer wall of the annular cylinder body, and the end with the smallest width of the gripper body is located on the side close to the axis of the annular cylinder body.

7. The flat wire motor stator welding clamping device according to claim 5, characterized in that, The protrusion has an inclined surface, the protrusion is in the shape of a quadrangular prism, and the longitudinal section of the protrusion is trapezoidal.

8. The flat wire motor stator welding clamping device according to claim 7, characterized in that, The multiple protrusions are arranged in a centrally symmetrical manner on the gripper body.

9. The flat wire motor stator welding clamping device according to claim 8, characterized in that, The inclined direction of the inclined wall is the same as the inclined direction of the inclined plane.

10. The flat wire motor stator welding clamping device according to claim 1, characterized in that, The centerlines of the plurality of arc-shaped holes are not collinear with the centerline of the column body, and the plurality of arc-shaped holes are arranged in a centrally symmetrical manner on the dial ring.

Images