A kind of automobile generator stator winding assembly is grabbed with material mechanism

Abstract

The application belongs to the technical field of machine tools, and particularly relates to a material grabbing mechanism for assembling a stator winding of an automobile generator. The following scheme is proposed and comprises a supporting plate, a support column, a support plate, a hydraulic cylinder, a material grabbing assembly and a moving assembly for driving the material grabbing assembly to move. The moving assembly is fixed on an assembling table, the supporting plate is arranged on the moving assembly, the support column is fixed on the supporting plate, the top of the support column is connected with one end of the support plate, a through hole for fixing the hydraulic cylinder is arranged on one side of the top of the support plate, and the material grabbing assembly is arranged at the bottom of the hydraulic cylinder. The material grabbing assembly comprises a connecting frame, a guide rail, a double-end screw rod, a material grabbing motor, two supporting blocks, two side plates, two supporting plates and two clamping plates. The application can quickly lift the element fork, and the pressure generated when the two clamping plates are squeezed can make the element slide upward from the inclined surface, so that the element can be effectively prevented from being clamped at the edge of the clamping plate and falling off the clamping plate due to shaking.

Description

Technical Field

[0001] This invention relates to the field of machine tools, and more particularly to a material gripping mechanism for assembling stator windings of automotive generators. Background Technology

[0002] Stator winding refers to the winding installed on the stator, which is the copper wire wound on the stator. The winding is a general term for a phase or the entire electromagnetic circuit composed of multiple coils or coil groups. When assembling the stator winding of an automobile generator, the components need to be picked up by a material gripping mechanism.

[0003] A search revealed Chinese patent application CN106181281A, which discloses a material gripping mechanism for an automotive generator rotor assembly equipment. The mechanism includes an automotive generator rotor, arranged vertically, comprising a lower claw pole with claws facing upwards, a coil, an upper claw pole with claws facing downwards, and a rotor shaft. The material gripping mechanism includes a material gripping base, front and rear material gripping slides, upper and lower material gripping slides, a material gripping cylinder, a material unloading cylinder, a material gripping clamp, a material gripping assembly, and a material unloading rod. The material gripping base is mounted on a frame. The front and rear material gripping slides are slidably mounted on the material gripping base, and the upper and lower material gripping slides are slidably mounted on the front and rear material gripping slides. The material gripping cylinder and the material unloading cylinder are both mounted on the front and rear material gripping slides. The upper and lower material gripping slides are connected to the piston rod of the material gripping cylinder, and the material gripping clamp is fixed on the upper and lower material gripping slides. This invention provides a material gripping mechanism for an automated, highly efficient, and safe automotive generator rotor assembly equipment.

[0004] Existing mechanisms typically use grippers to pick up components when handling them. However, because some components are quite large and the grippers have limited reach, the grippers may only hold the components at the edges. When moving the components, the components may sway and fall off the grippers. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A material-grabbing mechanism for assembling stator windings of an automotive generator includes a pallet, a support column, a support plate, a hydraulic cylinder, a material-grabbing assembly, and a moving component for driving the material-grabbing assembly. The moving component is fixed on an assembly table, the pallet is mounted on the moving component, the support column is fixed on the pallet, and its top is connected to one end of the support plate. A through-hole for fixing the hydraulic cylinder is provided on one side of the top of the support plate. The material-grabbing assembly is located at the bottom of the hydraulic cylinder. The material-grabbing assembly includes a connecting frame, a guide rail, a double-ended screw, a material-grabbing motor, two support blocks, two side plates, two support plates, and two clamping plates. The top of the connecting frame is fixed to the hydraulic cylinder, and both sides are connected to the guide rail. The guide rail is rotatably connected to the double-ended screw, the threads on both sides of the double-ended screw are in opposite directions, two support blocks are slidably connected to both sides of the guide rail, and each of the two support blocks has a threaded hole through it that matches the double-ended screw. The double-ended screw is threadedly connected to the threaded hole. The material gripping motor is fixed to one side of the guide rail, and its output end is fixedly connected to the double-ended screw. The side plate is fixed to the bottom of the support block, and one side of the support plate is connected to the side plate. A buffer spring is welded between the clamping plate and the side plate. The buffer spring has a damper inside. A fork plate is fixed at the bottom position on one side of the clamping plate. One side of the fork plate is set as an inclined surface, and its bottom is set as a pointed tip.

[0006] Preferably, two sliding openings are provided on both sides of the guide rail, and a slider is slidably connected to the inner wall of the sliding opening, and the slider is connected to the support block.

[0007] Preferably, the moving assembly includes two pads, two supports, multiple positioning rods, a moving screw, a moving block, and a moving motor. The pads are connected to the supports. The multiple positioning rods are symmetrically fixed between the two supports. The moving block is slidably connected between adjacent positioning rods. The moving screw is rotatably connected to the two supports. One side of the moving block has a threaded opening adapted to the moving screw. The moving screw is threadedly connected to the threaded opening. The moving block is connected to a support plate. The moving motor is fixed to one side of one of the supports, and its output end is fixedly connected to one end of the moving screw.

[0008] Preferably, the top of the clamping plate is provided with an extrusion assembly, which is connected in conjunction with the material gripping assembly.

[0009] Preferably, a slot is provided on one side of the clamping plate, the bottom of the slot is on the same plane as the top of the fork plate, a limit plate is slidably connected to the inner wall of the slot, and a limit spring is welded between the limit plate and the slot.

[0010] Preferably, the extrusion assembly includes a transmission component and an extrusion plate. The transmission component includes a gear seat, a rotating rod, two transmission wheels, a drive wheel, a transverse rack, and a vertical rack. The gear seat is fixed on the clamping plate, and the rotating rod is rotatably connected to the gear seat. The two transmission wheels and the drive wheel are fixedly sleeved on the rotating rod. The two vertical racks mesh with the two transmission wheels, and their bottoms are fixed to both sides of the top of the extrusion plate. The transverse rack is fixed on the side plate and meshes with the drive wheel.

[0011] Preferably, guide grooves are provided at both ends of one side of the clamping plate, and guide blocks are slidably connected to the inner wall of the guide grooves. The guide blocks are connected to the extrusion plate, and guide block springs are welded between the bottom of the guide blocks and the guide grooves.

[0012] Preferably, the top of the support column is bolted to one end of the support plate, the top of the connecting frame is bolted to the hydraulic cylinder, and the two sides of the connecting frame are bolted to the guide rail.

[0013] Preferably, the side plate is fixed to the bottom of the support block by bolts, and one side of the support plate is connected to the side plate by bolts.

[0014] Preferably, the guide rail and the double-ended screw are rotatably connected by bearings, and the material gripping motor is fixed to one side of the guide rail by bolts.

[0015] The beneficial effects of this invention are as follows: 1. This invention utilizes a gripping assembly to handle the assembly of stator windings. During this process, a moving assembly is activated, which in turn moves the gripping assembly. When the assembly moves directly below the component, a hydraulic cylinder is activated, causing the gripping assembly to move downwards. Simultaneously, a gripping motor is activated, driving a double-ended screw to rotate. Since the threads on both sides of the double-ended screw are in opposite directions, the two support blocks move in the same direction as the screw rotates. This causes the distance between the two clamping plates to gradually decrease, thus securing both sides of the component. The fork plate moves from far to near and clamps the components on both sides, enabling it to grip and fix components of different sizes. This improves the gripping effect of the gripping assembly. When the clamping plate moves, the fork plate will first contact the component. Since one side of the fork plate is set as an inclined surface and the bottom is set as a pointed tip, the pointed tip can quickly lift the component. The pressure generated by the two clamping plates makes the component slide upward from the inclined surface and support it on the clamping plate. This effectively prevents the component from being clamped at the edge of the clamping plate and falling off the clamping plate due to shaking, which would affect the assembly of the stator winding. 2. This invention, through the arrangement of a gripping assembly and an extrusion assembly, allows the component to press against a limiting plate when it acts on one side of the clamping plate. The limiting plate then moves inward into the slot under the action of the component, supporting the bottom of the component. The clamping plate moves towards the support plate under pressure, and the driving wheel moves synchronously. During this movement, the driving wheel engages with a transverse rack, driving the rotating rod to rotate. The transmission wheel rotates synchronously with the rotating rod, and its rotation drives the vertical rack downward. This downward movement of the vertical rack causes the extrusion plate to move downward, thus placing the extrusion plate on top of the component. The cooperation between the gripping assembly and the extrusion assembly effectively fixes the component, improving its stability during movement and thus increasing the assembly efficiency of the stator winding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the material gripping mechanism for assembling the stator winding of an automobile generator according to the present invention. Figure 2 This is a schematic diagram of the front view of a material gripping mechanism for assembling stator windings of an automotive generator according to the present invention. Figure 3 This is a schematic diagram of the moving component structure of a material gripping mechanism for assembling stator windings of an automotive generator, as proposed in this invention. Figure 4 This is a schematic diagram of the material gripping assembly structure of a material gripping mechanism for assembling stator windings of an automotive generator, as proposed in this invention. Figure 5 for Figure 4 The structural diagram at point A is presented in the text; Figure 6 This is a partial structural schematic diagram of a material-grabbing mechanism for assembling stator windings of an automotive generator proposed in this invention; Figure 7 This is a schematic diagram of the extrusion assembly structure of a material gripping mechanism for assembling stator windings of an automotive generator, as proposed in this invention. Figure 8 This is a schematic diagram of the transmission component structure of a material-grabbing mechanism for assembling the stator winding of an automotive generator, as proposed in this invention.

[0017] In the attached diagram: 1. Moving component; 2. Pallet; 3. Support column; 4. Support plate; 5. Hydraulic cylinder; 6. Gripping component; 7. Pad plate; 8. Support; 9. Moving motor; 10. Positioning rod; 11. Moving screw; 12. Moving block; 13. Connecting frame; 14. Guide rail; 15. Support block; 16. Double-ended screw; 17. Gripping motor; 18. Slider; 19. Sliding port; 20. Side plate; 21. Support plate; 22. Damper; 23. Buffer spring; 24. Clamping plate; 25. Fork plate; 26. Extrusion component; 27. Groove; 28. Limiting spring; 29. ​​Limiting plate; 30. Guide groove; 31. Transmission component; 32. Extrusion plate; 33. Guide block spring; 34. Guide block; 35. Gear seat; 36. Rotating rod; 37. Transmission wheel; 38. Vertical rack; 39. Drive wheel; 40. Horizontal rack. Detailed Implementation

[0018] Example 1, referring to Figures 1-5 A material gripping mechanism for assembling stator windings of an automotive generator includes a pallet 2, a support column 3, a support plate 4, a hydraulic cylinder 5, a material gripping assembly 5, and a moving assembly 1 for driving the material gripping assembly 5 to move. The moving assembly 1 is fixed on the assembly table, the pallet 2 is disposed on the moving assembly 1, the support column 3 is welded to the pallet 2, and its top is connected to one end of the support plate 4 by bolts. A through-hole for fixing the hydraulic cylinder 5 is provided on one side of the top of the support plate 4, and the material gripping assembly 5 is disposed at the bottom of the hydraulic cylinder 5. The material gripping assembly 6 includes a connecting frame 13, a guide rail 14, a double-ended screw 16, a material gripping motor 17, two support blocks 15, two side plates 21, two support plates 21, and two clamping plates 24. The top of the connecting frame 13 is fixed to the hydraulic cylinder 5 by bolts, and both sides are bolted to the guide rail 14. The guide rail 14 and the double-ended screw 16 are rotatably connected by bearings. The threads on both sides of the double-ended screw 16 are in opposite directions. The two support blocks 15 are slidably connected to both sides of the guide rail 14, and each of the two support blocks 15 has a through-hole that is adapted to the double-ended screw 16. The threaded hole is connected to the threaded hole by the double-ended screw 16. The material gripping motor 17 is fixed to one side of the guide rail 10 by bolts, and one end of its output is fixedly connected to the double-ended screw 16. The side plate 20 is fixed to the bottom of the support block 15 by bolts. One side of the support block 21 is connected to the side plate 20 by bolts. A buffer spring 23 is welded between the clamping plate 24 and the side plate 20. A damper 22 is provided inside the buffer spring 23. A fork plate 25 is welded to one side of the clamping plate 24 at the bottom position. One side of the fork plate 25 is set as an inclined surface, and its bottom is set as a pointed tip.

[0019] During the material handling process for assembling the stator windings, the moving assembly 1 is activated, which drives the material handling assembly 6 to move. When it moves directly below the component, the hydraulic cylinder 5 is activated, causing the material handling assembly 6 to move downwards. At this time, the material handling motor 17 is activated, which drives the double-ended screw 16 to rotate. Since the threads on both sides of the double-ended screw 16 are in opposite directions, when the double-ended screw 16 rotates, the two support blocks 15 move in the same direction, and the distance between the two clamping plates 24 gradually decreases, thereby fixing the two sides of the component through the clamping plates 24. The fork plate 25 moves and clamps the components on both sides, enabling it to grip and fix components of different sizes, thus improving the gripping effect of the gripping assembly 6. At the same time, when the clamping plate 24 moves, the fork plate 25 will first contact the component. Since one side of the fork plate 25 is set as an inclined surface and the bottom is set as a pointed tip, the component can be quickly forked up by the pointed tip. The pressure generated by the two clamping plates 24 makes the component slide upward from the inclined surface and support it on the clamping plate 24. This effectively prevents the component from being clamped at the edge of the clamping plate 24 and falling off the clamping plate 24 due to shaking, which would affect the assembly of the stator winding.

[0020] Based on the above, in order to improve the stability of the movement of the clamping plate 24 and prevent the components from falling off the clamping plate 24, two sliding openings 19 are opened through both sides of the guide rail 14. The inner wall of the sliding opening 19 is slidably connected to the slider 18, and the slider 18 is connected to the support block 15 by bolts.

[0021] In this invention, the movable component 1 includes two pads 7, two supports 8, multiple positioning rods 10, a movable screw 11, a movable block 12, and a movable motor 9. The pads 7 and supports 8 are connected by bolts. The multiple positioning rods 10 are symmetrically fixed between the two supports 8. The movable block 12 is slidably connected between adjacent positioning rods 10 and contacts the side wall of the positioning rod 10. The movable screw 11 is rotatably connected to the two supports 8 through bearings. One side of the movable block 12 has a threaded opening adapted to the movable screw 11, and the threaded opening is threadedly connected to the movable screw 11. The movable block 12 is connected to the support plate 2 by bolts. The movable motor 9 is fixed to one side of one of the supports 8 by bolts, and one of its output ends is fixedly connected to one end of the movable screw 11.

[0022] Example 2, refer to Figures 1-8 A material gripping mechanism for assembling stator windings of an automobile generator, compared with Embodiment 1, has an extrusion assembly 26 on the top of the clamping plate 24, and the extrusion assembly 26 and the material gripping assembly 6 are connected in cooperation.

[0023] Based on the above, a slot 27 is provided on one side of the clamping plate 24. The bottom of the slot 27 and the top of the fork plate 25 are on the same plane. A limit plate 29 is slidably connected to the inner wall of the slot 27. A limit spring 28 is welded between the limit plate 29 and the slot 27.

[0024] Based on the above, the extrusion assembly 26 consists of a transmission component 31 and an extrusion plate 32. The transmission component 31 includes a gear seat 35, a rotating rod 36, two transmission wheels 37, a drive wheel 39, a transverse rack 40, and a vertical rack 38. The gear seat 35 is fixed to the clamping plate 24 by bolts. The rotating rod 36 and the gear seat 35 are rotatably connected by bearings. The two transmission wheels 37 and the drive wheel 39 are fixedly sleeved on the rotating rod 36. The two transmission wheels 37 are symmetrically distributed on both sides of the drive wheel 39. The two vertical racks 38 mesh with the two transmission wheels 37, and their bottoms are fixed to both sides of the top of the extrusion plate 32 by bolts. The transverse rack 40 is fixed to the side plate 20 by bolts and meshes with the drive wheel 39. Guide grooves 30 are provided at both ends of one side of the clamping plate 24. Guide blocks 34 are slidably connected to the inner wall of the guide grooves 30. The guide blocks 34 are connected to the extrusion plate 32 by bolts. A guide block spring 33 is welded between the bottom of the guide block 34 and the guide groove 30.

[0025] When the component acts on one side of the clamping plate 24, it will press the limiting plate 29, and the limiting plate 29 will move into the slot 27 under the action of the component. At this time, the bottom of the component will be supported on the bottom of the slot 27, and the clamping plate 24 will move to one side of the support plate 21 under pressure. At this time, the driving wheel 39 will move synchronously, and the driving wheel 39 will mesh with the transverse rack 40 when it moves. The driving wheel 39 will drive the rotating rod 36 to rotate under the action of meshing. The transmission wheel 37 will rotate synchronously with the rotation of the rotating rod 36. At this time, when the transmission wheel 37 rotates, it will drive the vertical rack 38 to move downward through meshing. As the vertical rack 38 moves downward, it will drive the pressing plate 32 to move downward, so that the pressing plate 32 acts on the top of the component. The cooperation between the gripping assembly 6 and the pressing assembly 26 can effectively fix the component, improve the stability of the component when moving, and thus improve the assembly efficiency of the stator winding.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A material-grabbing mechanism for assembling stator windings of an automotive generator, comprising a pallet (2), a support column (3), a support plate (4), a hydraulic cylinder (5), a material-grabbing assembly (6), and a moving assembly (1) for driving the material-grabbing assembly (6) to move, wherein the moving assembly (1) is fixed on an assembly table, the pallet (2) is disposed on the moving assembly (1), the support column (3) is fixed on the pallet (2), and its top is connected to one end of the support plate (4), wherein a through-hole for fixing the hydraulic cylinder (5) is provided on one side of the top of the support plate (4), and the material-grabbing assembly (6) is disposed at the bottom of the hydraulic cylinder (5); characterized in that, The material gripping assembly (6) includes a connecting frame (13), a guide rail (14), a double-ended screw (16), a material gripping motor (17), two support blocks (15), two side plates (20), two support plates (21), and two clamping plates (24). The top of the connecting frame (13) is fixed on the hydraulic cylinder (5), and both sides are connected to the guide rail (14). The guide rail (14) is rotatably connected to the double-ended screw (16). The threads on both sides of the double-ended screw (16) are opposite in direction. The two support blocks (15) are slidably connected to both sides of the guide rail (14). One side of each of the two support blocks (15) has a through-hole for connection with the double-ended screw (16). The double-ended screw (16) is threadedly connected to the threaded hole, the gripping motor (17) is fixed on one side of the guide rail (14), and its output end is fixedly connected to the double-ended screw (16). The side plate (20) is fixed to the bottom of the support block (15). One side of the support plate (21) is connected to the side plate (20). A buffer spring (23) is welded between the clamping plate (24) and the side plate (20). A damper (22) is provided inside the buffer spring (23). A fork plate (25) is fixed at the bottom position on one side of the clamping plate (24). One side of the fork plate (25) is set as an inclined surface, and its bottom is set as a pointed tip.

2. The material handling mechanism for assembling the stator winding of an automotive generator according to claim 1, characterized in that, Two sliding openings (19) are opened through both sides of the guide rail (14). A slider (18) is slidably connected to the inner wall of the sliding opening (19). The slider (18) is connected to the support block (15).

3. The material handling mechanism for assembling the stator winding of an automotive generator according to claim 1, characterized in that, The moving component (1) includes two pads (7), two supports (8), multiple positioning rods (10), a moving screw (11), a moving block (12), and a moving motor (9). The pads (7) are connected to the supports (8). The multiple positioning rods (10) are symmetrically fixed between the two supports (8). The moving block (12) is slidably connected between adjacent positioning rods (10). The moving screw (11) is rotatably connected to the two supports (8). A threaded opening adapted to the moving screw (11) is provided through one side of the moving block (12). The moving screw (11) is threadedly connected to the threaded opening. The moving block (12) is connected to the support plate (2). The moving motor (9) is fixed to one side of one of the supports (8), and its output end is fixedly connected to one end of the moving screw (11).

4. The material handling mechanism for assembling the stator winding of an automotive generator according to claim 1, characterized in that, The top of the clamping plate (24) is provided with an extrusion assembly (26), which is connected to the material gripping assembly (6).

5. A material-grabbing mechanism for assembling stator windings of an automotive generator according to claim 4, characterized in that, A slot (27) is provided on one side of the clamp (24). The bottom of the slot (27) and the top of the fork plate (25) are on the same plane. A limit plate (29) is slidably connected to the inner wall of the slot (27). A limit spring (28) is welded between the limit plate (29) and the slot (27).

6. The material gripping mechanism for assembling the stator winding of an automotive generator according to claim 4, characterized in that, The extrusion assembly (26) includes a transmission component (31) and an extrusion plate (32). The transmission component (31) includes a gear seat (35), a rotating rod (36), two transmission wheels (37), a drive wheel (39), a transverse rack (40), and a vertical rack (38). The gear seat (35) is fixed on the clamping plate (24). The rotating rod (36) is rotatably connected to the gear seat (35). The two transmission wheels (37) and the drive wheel (39) are fixedly sleeved on the rotating rod (36). The two vertical racks (38) mesh with the two transmission wheels (37) and their bottoms are fixed on both sides of the top of the extrusion plate (32). The transverse rack (40) is fixed on the side plate (20) and meshes with the drive wheel (39).

7. A material-grabbing mechanism for assembling stator windings of an automotive generator according to claim 6, characterized in that, Guide grooves (30) are provided at both ends of one side of the clamping plate (24). A guide block (34) is slidably connected to the inner wall of the guide groove (30). The guide block (34) is connected to the extrusion plate (32). A guide block spring (33) is welded between the bottom of the guide block (34) and the guide groove (30).

8. The material handling mechanism for assembling the stator winding of an automotive generator according to claim 1, characterized in that, The top of the support column (3) is connected to one end of the support plate (4) by bolts, the top of the connecting frame (13) is fixed to the hydraulic cylinder (5) by bolts, and the two sides of the connecting frame (13) are connected to the guide rail (14) by bolts.

9. A material-grabbing mechanism for assembling stator windings of an automotive generator according to claim 1, characterized in that, The side plate (20) is fixed to the bottom of the support block (15) by bolts, and one side of the support plate (21) is connected to the side plate (20) by bolts.

10. A material-grabbing mechanism for assembling stator windings of an automotive generator according to claim 1, characterized in that, The guide rail (14) and the double-headed screw (16) are rotatably connected by bearings, and the material gripping motor (17) is fixed to one side of the guide rail (14) by bolts.

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