Hub welding device

Abstract

The utility model relates to a hub welding device which comprises a rack and a welding device body and further comprises a first driving part, a second driving part, a movable table, an upper mold core and a lower mold core, the lower mold core is rotationally arranged on the rack around the vertical axis direction, the first driving part drives the lower mold core to rotate and is used for positioning a hub placed on the lower mold core, the second driving part is arranged on the rack, and the movable table is arranged on the lower mold core. The driving device is used for driving the moving table to move, the upper mold core rotates on the moving table, the upper mold core and the lower mold core are coaxially arranged, the upper mold core is used for pressing a magnetic steel ring on the inner side of a hub on the lower mold core, and the welding device is used for welding the hub and the magnetic steel ring together. An operator only needs to preliminarily place the magnetic steel ring on the inner side of the hub, then place the hub on the lower mold core, then drive the upper mold core to move downwards to press the magnetic steel ring, the magnetic steel ring can completely enter the inner side of the hub and is coaxially arranged with the hub, and then drive the lower mold core to drive the hub to rotate. The hub and the magnetic steel ring are welded together in the circumferential direction through a welding device; the upper die core can limit the position of the magnetic steel ring, an operator does not need to manually adjust the position of the magnetic steel ring, and therefore the yield of welding machining is improved.

Description

Technical Field

[0001] The utility model relates to the field of wheel hub processing equipment, in particular to a wheel hub welding device. Background Art

[0002] The electric vehicle motor includes a stator assembly and a rotor assembly, wherein the rotor assembly includes a wheel hub, a magnetic steel ring arranged inside the wheel hub, and magnetic steel sheets covering the inner wall of the magnetic steel ring. The magnetic steel ring is welded to the wheel hub.

[0003] Related art wheel hub welding device such as Figure 1 As shown, the machine comprises a frame, a fixture rotatably mounted on the frame, and a welding device mounted on the frame. The operator installs the magnetic ring inside the wheel hub, with the outer wall of the magnetic ring contacting the inner wall of the wheel hub. The wheel hub is then clamped and limited using the fixture. The rotation of the fixture drives the wheel hub, and the welding torch on the welding device welds the wheel hub and the inner magnetic ring.

[0004] The above-mentioned related technical solutions have the following defects: before the welding device performs welding, the operator needs to adjust the position of the magnetic ring in the wheel hub so that the magnetic ring is completely located in the wheel hub. Otherwise, the magnetic ring may collide with the welding gun during rotation, or the position of the magnetic ring may deviate after welding, affecting the yield rate. Utility Model Content

[0005] In order to improve the yield rate of the welding process between the wheel hub and the magnetic steel ring, the present application provides a wheel hub welding device.

[0006] The wheel hub welding device provided in this application adopts the following technical solution:

[0007] A wheel hub welding device comprises a frame and a welding device, and also includes a first driving member, a second driving member, a movable platform, an upper mold core, and a lower mold core. The lower mold core is arranged on the frame to rotate around a vertical axis. The first driving member drives the lower mold core to rotate. The lower mold core is used to position the wheel hub placed thereon. The second driving member is arranged on the frame and is used to drive the movable platform to move. The upper mold core rotates on the movable platform. The upper mold core and the lower mold core are arranged coaxially. The upper mold core is used to press the magnetic steel ring on the inner side of the wheel hub onto the lower mold core. The welding device is used to weld the wheel hub and the magnetic steel ring together.

[0008] By adopting the above technical solution, the operator only needs to initially place the magnetic steel ring on the inner side of the wheel hub, and then place the wheel hub on the lower mold core, and then drive the upper mold core to move downward to press the magnetic steel ring. The magnetic steel ring will completely enter the inner side of the wheel hub and be coaxially arranged with the wheel hub. Then drive the lower mold core to drive the wheel hub to rotate, and use the welding device to weld the wheel hub and the magnetic steel ring together in the circumferential direction; the upper mold core can limit the position of the magnetic steel ring, and the operator does not need to manually adjust the position of the magnetic steel ring, thereby improving the yield rate of the welding process.

[0009] Preferably, the welding device includes a first cylinder and a welding gun, the first cylinder is arranged on a frame, the piston rod of the first cylinder is inclined downward toward the welding position of the wheel hub and the magnetic steel ring, the welding gun is fixedly arranged on the piston rod of the first cylinder, and the welding gun is used to weld the wheel hub and the magnetic steel ring together.

[0010] Preferably, there are two first cylinders and welding guns, the two first cylinders are respectively located on both sides of the upper mold core, and the two welding guns are respectively set on the piston rods of the two first cylinders. The two welding guns are arranged opposite to each other and are used to weld the wheel hub and the magnetic steel ring together.

[0011] By adopting the above technical solution, two welding guns can operate simultaneously, which can improve welding efficiency.

[0012] Preferably, one side of the frame is an operating position for an operator to load and unload the wheel hub, and a baffle is provided on the welding gun. The baffle is located on the side of the welding gun close to the operating position and is used to shield the welding gun.

[0013] By adopting the above technical solution, since strong light and arc radiation are generated during welding, the baffle can protect the eyes of the operator.

[0014] Preferably, it also includes a driving member three and a light-transmitting plate, wherein the light-transmitting plate is provided with a slider, and a sliding groove is provided on the side of the baffle away from the welding gun, the slider slides on the sliding groove, and the driving member three drives the light-transmitting plate to slide; when the piston rod of the first cylinder is extended, the light-transmitting plate moves to the side of the baffle close to the wheel hub, and the light-transmitting plate is in use state, for shielding sparks splashed during welding; when the piston rod of the first cylinder is retracted, the light-transmitting plate moves to face the corresponding baffle, and the light-transmitting plate is in a storage state.

[0015] By adopting the above technical solution, when the piston rod of the first cylinder is extended, the welding gun is in a welding state. At this time, the baffle can only block the most dazzling part of the strong light at the welding point. Sparks will still be splashed during the welding process, so the light-transmitting plate can be moved to the outside of the baffle to block the other part of the sparks, increase the blocking area, and reduce the chance of sparks splashing to the operator; when the piston rod of the first cylinder is retracted, the welding gun is away from the wheel hub and is in a stopped working state. At this time, the light-transmitting plate moves to face the baffle, and the light-transmitting plate is in a retracted state, which can reduce the space occupied by the light-transmitting plate and the baffle, and reduce the impact of the light-transmitting plate on the operator when placing and removing the wheel hub.

[0016] Preferably, the light-transmitting plate is dark and transparent.

[0017] By adopting the above technical solution, the light-transmitting plate can shield the sparks generated during the welding process while reducing the light while being able to observe the welding situation.

[0018] Preferably, the driving member three includes a fixed rod, a spring and a tilting rod, the spring is located in the slide groove, and the two ends of the spring are respectively abutted on the inner wall of the slide groove and the slider, and the spring is used to drive the slider to always slide toward the side away from the wheel hub; the fixed rod is fixedly set on the frame, and the tilting rod is fixedly set on the light-transmitting plate along the tilting direction, and the angle between the tilting rod and the horizontal plane is smaller than the angle between the piston rod of the first cylinder and the horizontal plane, and the fixed rod is located below the tilting rod and is used to abut against the tilting rod during the extension of the piston rod of the first cylinder.

[0019] By adopting the above technical solution, when the piston rod of the first cylinder is extended, the fixed rod will abut against the tilting rod, driving the light-transmitting plate to overcome the elastic force of the spring and move toward the side of the wheel hub, so that the light-transmitting plate can move to the outside of the baffle to block the sparks; when the piston rod of the first cylinder is retracted, the tilting rod moves away from the fixed rod, and under the action of the spring, the light-transmitting plate is reset and is in a retracted state.

[0020] The technical effects of this utility model are mainly reflected in the following aspects:

[0021] 1. The utility model sets an upper die core, which can limit the position of the magnetic ring. The operator does not need to manually adjust the position of the magnetic ring, thereby improving the yield rate of the welding process;

[0022] 2. The utility model sets a baffle, which can protect the eyes of the operator because strong light and arc radiation are generated during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the related technology.

[0024] Figure 2 It is a structural schematic diagram of the light-transmitting plate in use according to an embodiment of the present application.

[0025] Figure 3 It is a structural schematic diagram of the light-transmitting plate in the storage state of an embodiment of the present application.

[0026] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0027] Explanation of the accompanying drawings: 1. Frame; 11. Motor; 12. Second cylinder; 13. Moving table; 14. Upper mold core; 15. Lower mold core; 16. Clamp; 2. Welding device; 21. First cylinder; 22. Welding gun; 3. Hub; 31. Magnetic ring; 4. Light-transmitting plate; 41. Slider; 5. Baffle; 51. Slide; 6. Driving part three; 61. Fixed rod; 62. Spring; 63. Tilt rod. DETAILED DESCRIPTION

[0028] The following is combined with Figure 2-4 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0029] An embodiment of the present application discloses a wheel hub welding device.

[0030] Reference Figure 2 and Figure 3 A wheel hub welding device of this embodiment includes a frame 1 and a welding device 2, and also includes a driving member 1, a driving member 2, a movable platform 13, an upper mold core 14 and a lower mold core 15. The lower mold core 15 is arranged on the frame 1 to rotate around the vertical axis. The driving member 1 is a motor 11, and the motor 11 is fixedly arranged on the frame 1. The output shaft of the motor 11 extends vertically upward and is coaxially fixed on the lower mold core 15, driving the lower mold core 15 to rotate. The lower mold core 15 is used to position the wheel hub 3 placed thereon.

[0031] Reference Figure 2 and Figure 3 The second driving component is a second cylinder 12, which is fixed to the frame 1. The piston rod of the second cylinder 12 extends vertically downward and is fixed to the movable platform 13. The upper mold core 14 rotates below the movable platform 13 and is located above the lower mold core 15. The upper mold core 14 and the lower mold core 15 are coaxially arranged. The upper mold core 14 is used to press the magnetic ring 31 on the inner side of the wheel hub 3 against the lower mold core 15. The welding device 2 is used to weld the wheel hub 3 and the magnetic ring 31 together.

[0032] Reference Figure 2 and Figure 3The operator only needs to initially place the magnetic ring 31 inside the wheel hub 3, then place the wheel hub 3 on the lower mold core 15. Then, the upper mold core 14 is driven downward to press the magnetic ring 31. The magnetic ring 31 will completely enter the inner side of the wheel hub 3 and be coaxial with the wheel hub 3. The lower mold core 15 is then driven to rotate the wheel hub 3, and the welding device 2 is used to weld the wheel hub 3 and the magnetic ring 31 together in the circumferential direction. The upper mold core 14 can limit the position of the magnetic ring 31, so the operator does not need to manually adjust the position of the magnetic ring 31, thereby improving the yield rate of the welding process.

[0033] Reference Figure 2 and Figure 3 The welding device 2 includes two first cylinders 21 and two welding guns 22. The first cylinders 21 are mounted on the frame 1 and are located on either side of the upper mold core 14. The piston rods of the first cylinders 21 extend downwardly and obliquely toward the welding position between the wheel hub 3 and the magnetic ring 31. The two welding guns 22 are fixed to the piston rods of the first cylinders 21, and are arranged opposite each other to weld the wheel hub 3 and the magnetic ring 31 together. The two welding guns 22 operate simultaneously, which can improve welding efficiency.

[0034] Reference Figure 2-Figure 4 One side of the frame 1 is the operating position for the operator to load and unload the wheel hub 3. A baffle 5 is provided on the welding gun 22. The baffle 5 is located on the side of the welding gun 22 close to the operating position and is used to shield the welding gun 22. Since strong light and arc radiation are generated during welding, the baffle 5 can protect the operator's eyes.

[0035] Reference Figure 2-Figure 4 The wheel hub welding device of this embodiment further includes two driving members 3 6 and two light-transmitting plates 4. The two light-transmitting plates 4 correspond to two baffles 5, and the two driving members 3 6 correspond to the two light-transmitting plates 4. A slider 41 is fixedly mounted on the light-transmitting plate 4. A slide groove 51 is formed on the side of the baffle 5 away from the welding gun 22. The slider 41 slides on the slide groove 51. The sliding direction of the slider 41 depends on the actual situation. In most cases, it is close to the horizontal direction. The driving member 3 6 is used to drive the corresponding light-transmitting plate 4 to slide. When the piston rod of the first cylinder 21 is extended, the two light-transmitting plates 4 move between the two baffles 5. At this time, the light-transmitting plates 4 are in use and are used to block sparks generated during welding. When the piston rod of the first cylinder 21 is retracted, the two light-transmitting plates 4 move to face the corresponding baffles 5. At this time, the light-transmitting plates 4 are in a stored state.

[0036] Reference Figure 2-Figure 4When the piston rod of the first cylinder 21 is extended, the welding gun 22 is in the welding state. At this time, the baffle 5 can only block the most glaring part of the strong light at the welding point. Sparks will still fly during the welding process. Therefore, the light-transmitting plate 4 can be moved to the outside of the baffle 5 to block the remaining sparks, increasing the shielding area and reducing the chance of sparks splashing onto the operator. When the piston rod of the first cylinder 21 is retracted, the welding gun 22 is away from the wheel hub 3 and is in a stopped state. At this time, the light-transmitting plate 4 moves to face the baffle 5, and the light-transmitting plate 4 is in a stowed state. This can reduce the space occupied by the light-transmitting plate 4 and the baffle 5, reducing the impact of the light-transmitting plate 4 on the operator when placing and removing the wheel hub 3.

[0037] Reference Figure 2-Figure 4 The light-transmitting plate 4 is dark and transparent and can be made of PVC or acrylic. It blocks sparks during welding while reducing light exposure while still allowing for observation of the welding process. The baffle 5 can be made of steel or plastic, with a gap between the baffle 5 and the welding gun 22.

[0038] Reference Figure 2-Figure 4 The third driving member 6 comprises a fixed rod 61, a spring 62, and a tilting rod 63. The spring 62 is located within the slide groove 51, with its ends respectively contacting the inner wall of the slide groove 51 and the slider 41. The spring 62 is used to drive the corresponding slider 41 to always slide toward the side away from the wheel hub 3. The fixed rod 61 is fixed to the frame 1. The two tilting rods 63 are fixed along the tilting direction on the side of the two light-transmitting plates 4 that are away from each other. The angle between the tilting rods 63 and the horizontal plane is smaller than the angle between the piston rod of the first cylinder 21 and the horizontal plane. The fixed rod 61 is located below the tilting rods 63 and is used to contact the tilting rods 63 during the extension of the piston rod of the first cylinder 21. The fixed rod 61 does not affect the movement of the baffle 5.

[0039] Reference Figure 2-Figure 4 When the piston rod of the first cylinder 21 extends, the fixed rod 61 will abut against the tilting rod 63, driving the light-transmitting plate 4 to overcome the elastic force of the spring 62 and move toward the side of the wheel hub 3, so that the light-transmitting plate 4 can move to the outside of the baffle 5 to block the sparks; when the piston rod of the first cylinder 21 contracts, the tilting rod 63 moves away from the fixed rod 61, and under the action of the spring 62, the light-transmitting plate 4 is reset, and the light-transmitting plate 4 is in the storage state.

[0040] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A wheel hub welding device, comprising a frame (1) and a welding device (2), characterized in that: The invention also includes a driving member 1, a driving member 2, a movable table (13), an upper mold core (14), and a lower mold core (15). The lower mold core (15) is arranged on the frame (1) to rotate around the vertical axis. The driving member 1 drives the lower mold core (15) to rotate. The lower mold core (15) is used to position the wheel hub (3) placed thereon. The driving member 2 is arranged on the frame (1) and is used to drive the movable table (13) to move. The upper mold core (14) rotates on the movable table (13). The upper mold core (14) and the lower mold core (15) are coaxially arranged. The upper mold core (14) is used to press the magnetic steel ring (31) on the inner side of the wheel hub (3) onto the lower mold core (15). The welding device (2) is used to weld the wheel hub (3) and the magnetic steel ring (31) together.

2. A wheel hub welding device according to claim 1, characterized in that: The welding device (2) comprises a first cylinder (21) and a welding gun (22); the first cylinder (21) is arranged on the frame (1); the piston rod of the first cylinder (21) extends obliquely downward toward the welding position of the wheel hub (3) and the magnetic steel ring (31); the welding gun (22) is fixedly arranged on the piston rod of the first cylinder (21); and the welding gun (22) is used to weld the wheel hub (3) and the magnetic steel ring (31) together.

3. A wheel hub welding device according to claim 2, characterized in that: There are two of each of the first cylinder (21) and the welding gun (22). The two first cylinders (21) are respectively located on both sides of the upper mold core (14). The two welding guns (22) are respectively arranged on the piston rods of the two first cylinders (21). The two welding guns (22) are arranged opposite to each other and are used to weld the wheel hub (3) and the magnetic steel ring (31) together.

4. The wheel hub welding device according to claim 2, characterized in that: One side of the frame (1) is an operating position for an operator to load and unload the wheel hub (3); a baffle (5) is provided on the welding gun (22); the baffle (5) is located on a side of the welding gun (22) close to the operating position and is used to shield the welding gun (22).

5. The wheel hub welding device according to claim 4, characterized in that: The invention also includes a driving member three (6) and a light-transmitting plate (4), wherein a slider (41) is provided on the light-transmitting plate (4), and a sliding groove (51) is provided on the side of the baffle (5) away from the welding gun (22), and the slider (41) slides on the sliding groove (51), and the driving member three (6) drives the light-transmitting plate (4) to slide; when the piston rod of the first cylinder (21) is extended, the light-transmitting plate (4) moves to the side of the baffle (5) close to the wheel hub (3), and the light-transmitting plate (4) is in a use state and is used to shield sparks splashed during welding; when the piston rod of the first cylinder (21) is retracted, the light-transmitting plate (4) moves to face the corresponding baffle (5), and the light-transmitting plate (4) is in a storage state.

6. The wheel hub welding device according to claim 5, characterized in that: The light-transmitting plate (4) is dark and transparent.

7. The wheel hub welding device according to claim 5, characterized in that: The driving member three (6) includes a fixed rod (61), a spring (62) and a tilting rod (63), wherein the spring (62) is located in the slide groove (51), and the two ends of the spring (62) respectively abut against the inner wall of the slide groove (51) and the slider (41), and the spring (62) is used to drive the slider (41) to always slide toward the side away from the wheel hub (3); the fixed rod (61) is fixedly arranged on the frame (1), and the tilting rod (63) is fixedly arranged on the light-transmitting plate (4) along the tilting direction, and the angle between the tilting rod (63) and the horizontal plane is smaller than the angle between the piston rod of the first cylinder (21) and the horizontal plane, and the fixed rod (61) is located below the tilting rod (63) and is used to abut against the tilting rod (63) when the piston rod of the first cylinder (21) is extended.

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