Motor rotor assembly equipment for an automobile seat driver

Abstract

This invention discloses an assembly device for a motor rotor used in an automotive seat drive unit, comprising a machine base and a retaining ring assembly device. The device is characterized by: a bearing assembly device located beside the retaining ring assembly device; a material feeding section positioned between the retaining ring assembly device and the bearing assembly device; and two sets of bearing assembly mechanisms symmetrically arranged on either side of the material feeding section. Each bearing assembly mechanism includes a bearing pressing mechanism and a bearing feeding mechanism, with the pressing mechanism positioned between the feeding mechanism and the retaining ring assembly device. The pressing mechanism includes a bearing positioning part and a driving part. A positioning element is provided on the machine base, and the bottom of the bearing positioning part is slidably mounted on the positioning element. The driving part is configured to drive the bearing positioning part to move along the positioning element. This invention improves the motor rotor assembly efficiency and reduces costs.

Description

Technical Field

[0001] This invention relates to the field of automotive seat drive manufacturing and processing, and more particularly to an assembly equipment for an automotive seat drive motor rotor. Background Technology

[0002] Car seats provide drivers and passengers with a convenient, comfortable, and safe driving and riding position. There are two main types of car seats: manual and electric. Electric adjustable car seats primarily use actuators to move the seat or rotate the backrest angle.

[0003] The motor is the main power component in the drive, and the motor mainly consists of a motor rotor. Both ends of the motor rotor require the installation of retaining rings and bearings. In existing technology, when assembling the retaining rings and bearings, a separate retaining ring assembly device is generally used to assemble the retaining rings at both ends of the motor rotor. After the retaining rings are assembled, they are stacked in a material tray. Once the tray is full, they are transferred to a bearing assembly device for bearing press-fitting. This method requires manual material transfer, resulting in low assembly efficiency and a large space occupation. Furthermore, in existing technology, bearing press-fitting generally uses semi-automatic press-fitting, such as patent application number 202323370937.1, patent title: "A Semi-Automatic Bearing Press Machine for Motor Rotor Bearing Installation." This semi-automatic press-fitting equipment has low assembly efficiency and occupies a large amount of overhead space. Summary of the Invention

[0004] The purpose of this invention is to provide an assembly device for a motor rotor of an automotive seat drive unit. By using this structure, after the motor rotor retaining ring is assembled, the bearing can be assembled continuously, which effectively improves the assembly efficiency and reduces the assembly cost.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a motor rotor assembly equipment for an automotive seat drive, comprising a machine base, a retaining ring assembly device mounted on the top panel of the machine base, a bearing assembly device provided on the side of the retaining ring assembly device, and a feeding section provided on the panel, the feeding section being disposed between the retaining ring assembly device and the bearing assembly device, the bearing assembly device comprising two sets of bearing assembly mechanisms symmetrically disposed on both sides of the feeding section;

[0006] The bearing assembly mechanism includes a bearing pressing mechanism and a bearing feeding mechanism, wherein the bearing pressing mechanism is disposed between the bearing feeding mechanism and the snap ring assembly device;

[0007] The bearing press-fitting mechanism includes a bearing positioning part and a driving part. The platform is provided with a positioning element. The bottom of the bearing positioning part is slidably mounted on the positioning element. The driving part is configured to drive the bearing positioning part to move along the positioning element.

[0008] The bearing positioning part includes a slide, a bearing positioning block rotatably mounted on the slide, and a rotary drive part for driving the bearing positioning block to rotate. The slide is slidably disposed on the positioning part.

[0009] In the above technical solution, the bearing positioning block has a bearing push hole through both ends in the middle, and one end of the bearing positioning block also has a bearing positioning hole coaxially arranged with the bearing push hole. The diameter of the bearing positioning hole is larger than the diameter of the bearing push hole. The driving part includes a first driving part that drives the bearing positioning part to move along the positioning member and a second driving part arranged at the outer end of the slide. The second driving part is provided with a push rod. The second driving part drives the inner end of the push rod to be inserted into or disengaged from the bearing push hole. The push rod is arranged parallel to the extension direction of the positioning member. The middle part of the push rod is movably connected to the slide. The fixed end of the second driving part is installed on the platform. The driving end of the second driving part is directly opposite the bearing positioning part, and the driving end of the second driving part is connected to the outer end of the push rod.

[0010] The inner end of the push rod is provided with a clearance hole, and the inner surface of the inner end of the clearance hole is provided with a tapered guide hole.

[0011] In the above technical solution, the second driving part is a second driving cylinder. When the output shaft of the second driving cylinder is extended, the inner end of the push rod passes through the bearing push hole and the bearing positioning hole and protrudes to the outside of the bearing positioning block.

[0012] When the output shaft of the second drive cylinder is retracted, the inner end of the push rod moves outward to disengage from the bearing push hole and is positioned outside the bearing positioning block;

[0013] The first drive unit is mounted on the platform. The first drive unit is a first drive cylinder. The fixed end of the first drive cylinder is connected to the platform, and the drive end of the first drive cylinder is connected to the slide. When the output shaft of the first drive cylinder extends, it pushes the slide away from the second drive unit. When the output shaft of the first drive cylinder retracts, it pulls the slide closer to the second drive unit.

[0014] In the above technical solution, the first drive unit is installed on the bottom surface of the table panel, the bottom surface of the table panel is provided with a first strip-shaped through groove communicating with the top surface of the table panel, and the bottom of the carriage is connected to the drive end of the first drive unit via a first upright plate.

[0015] An adjustable stop is also provided on the bottom surface of the table panel, and the stop is located at the inner end of the first upright plate.

[0016] In the above technical solution, the carriage has a U-shaped structure, the carriage is provided with a U-shaped groove, the opening of the U-shaped groove is set inward, the bearing positioning block is rotatably installed in the U-shaped groove via a rotating shaft, and the rotation drive unit is configured to drive the rotating shaft to rotate;

[0017] The bottom of the carriage is slidably connected to the positioning member, and the bottom plane of the U-shaped groove is located above the top plane of the positioning member;

[0018] The rotary drive unit is mounted on the top of the carriage, the middle part of the rotating shaft is connected to the bearing positioning block, the bottom of the rotating shaft is rotatably connected to the bottom of the U-shaped groove, the top of the rotating shaft is rotatably connected to the top of the U-shaped groove, and the top of the rotating shaft passes through the U-shaped groove and is located above the top of the carriage.

[0019] The rotary drive unit includes a gear, a rack, and a third drive cylinder. The gear is mounted on the top outer surface of the rotating shaft, and the rack is disposed beside the gear and meshes with the gear.

[0020] The third drive cylinder is mounted on the top of the slide, and the output shaft of the third drive cylinder is connected to the end of the rack. The third drive cylinder is configured to drive the rack to move, and drive the rotating shaft and bearing positioning block to rotate via the gear.

[0021] In the above technical solution, the bearing feeding mechanism includes a feeding block and a feeding component installed on the platform. The feeding block is provided with a feeding groove that is inclined downward from the outside to the inside. The top of the outer end of the feeding groove is connected to the top surface of the feeding block.

[0022] The front side of the feeding block is provided with a discharge port that communicates with the inner end of the feeding trough, and the rear side of the feeding block is provided with a through port that communicates with the inner end of the feeding trough. The through port is positioned directly opposite the discharge port, and the discharge port is positioned directly opposite the bearing positioning block.

[0023] The feeding component is installed on the rear side of the loading block. The feeding component includes a feeding cylinder and a feeding rod. The feeding cylinder is installed on the rear side of the loading block. The rear end of the feeding rod is connected to the output shaft of the feeding cylinder. The front end of the feeding rod is inserted into the through-hole. The feeding cylinder drives the feeding rod to move back and forth and pushes the bearing in the discharge groove into the bearing positioning block.

[0024] In the above technical solution, the feeding cylinder is connected to the rear side of the feeding block via a mounting bracket;

[0025] The feeding block includes a rear side plate, a middle component, and a baffle plate. The middle component has an outwardly facing connection opening. The middle component is installed on the front side of the rear side plate. The baffle plate is connected to the front side of the middle component. The connection opening between the baffle plate and the rear side plate forms the feeding trough.

[0026] The feeding component is installed on the rear side of the rear side plate, and the through-hole is provided on the rear side plate.

[0027] The above technical solution also includes a material blocking component, which includes a material blocking cylinder and a material blocking plate. A material blocking slider is placed on the top surface of the feeding block. The material blocking cylinder is installed on the top surface of the feeding block. The output shaft of the material blocking cylinder is connected to the material blocking slider. The material blocking plate is disposed on the front side of the feeding block. The rear top side of the material blocking plate is connected to the front end of the material blocking slider. When the output shaft of the material blocking cylinder is retracted, the material blocking plate is disposed inside the discharge port. When the output shaft of the material blocking cylinder is extended, the material blocking plate is moved to the side of the discharge port.

[0028] A material tray is also provided on the rear side of the outer end of the feeding trough, and the front end of the material tray is connected to the feeding block.

[0029] The material pallet is provided with multiple V-shaped grooves at intervals, and the multiple V-shaped grooves are arranged at intervals from front to back. The V-shaped grooves are connected to the top of the outer end of the feeding trough.

[0030] In the above technical solution, the feeding part includes a front feeding part with a groove in the middle and a rear feeding part, and the top surfaces of the front feeding part and the rear feeding part are inclined downward from front to back.

[0031] A middle connecting part with a groove in the middle is provided between the front feeding part and the rear feeding part. The top surface of the middle connecting part is inclined downward from front to back. The front end of the middle connecting part contacts the rear end of the front feeding part, and the rear end of the middle connecting part contacts the front end of the rear feeding part. The grooves of the front feeding part, the rear feeding part and the middle connecting part are connected.

[0032] The front end of the groove of the intermediate connecting part is provided with a front limiting plate, and the front end of the groove of the rear feeding part is provided with a rear limiting plate.

[0033] In the above technical solution, a front lifting mechanism is provided at the rear end of the groove of the front feeding part, and the front lifting mechanism is located close to the front limiting plate; a rear lifting mechanism is provided at the rear end of the groove of the middle connecting part, and the rear lifting mechanism is located close to the rear limiting plate.

[0034] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0035] 1. In this invention, a bearing assembly device is set at the rear end of the snap ring assembly device. The motor rotor is conveyed by the feeding part, so that the motor rotor is first assembled with snap rings and then sent to the rear end for bearing press-fitting by the bearing assembly device. This effectively improves the assembly efficiency of the motor rotor and the bearing is automatically assembled, reducing the labor intensity of the operators.

[0036] 2. In this invention, the bearing is positioned using the bearing positioning hole of the bearing positioning part. The bearing positioning part is driven to rotate by the rotation drive part, and the bearing can be fed into the bearing positioning hole by the bearing feeding mechanism on the rear side. Then, it is rotated to face the motor rotor from the inside. The bearing positioning part is driven to approach the motor rotor by the drive part, and the bearing is pressed onto the motor rotor, realizing automatic pressing of the bearing. It can also realize 90-degree rotation of the bearing, which is suitable for side feeding and also facilitates the bearing positioning part to detach from the motor rotor for subsequent material receiving.

[0037] 3. In this invention, the push rod and the bearing positioning part are not fixedly connected. The push rod can be inserted into and detached from the bearing positioning part, which can not affect the rotation of the bearing positioning part, nor affect the push rod's pushing and pressing of the bearing. The first drive part can drive the bearing positioning part to approach the motor rotor for bearing pressing, and can also drive the bearing positioning part to return to its original position to receive the bearing conveyed by the bearing feeding mechanism, thereby realizing automatic bearing receiving and pressing.

[0038] 4. In this invention, the bearing feeding mechanism is set on the rear side of the bearing pressing mechanism and arranged along the feeding extension direction of the feeding part to the motor rotor. This can make reasonable use of the top space of the machine and effectively reduce the occupation of the top space, making the layout of the equipment more reasonable.

[0039] 5. The present invention uses a feeding component to transport the bearings individually, and the V-shaped groove on the bearing feeding mechanism is perpendicular to the bearing arrangement direction and the axis of the motor rotor. Subsequently, the bearing is flipped 90 degrees by the bearing pressing mechanism, which can minimize the occupation of longitudinal and vertical space.

[0040] 6. The feeding block in this invention is made of a rear side plate, a middle part and a baffle plate, which has a simple structure, low cost and is easy to maintain and replace;

[0041] 7. In this invention, multiple V-shaped grooves are spaced apart on the material pallet, and multiple bearings are placed in each V-shaped groove for bearing placement, thereby enabling the stacking of multiple bearings, reducing the space occupied by bearing stacking, and also reducing the frequency of bearing feeding. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure in Embodiment 1 of the present invention;

[0043] Figure 2 This is a schematic diagram of the installation structure of the feeding section in Embodiment 1 of the present invention;

[0044] Figure 3 This is a schematic diagram of the installation structure of the bearing press-fitting mechanism in Embodiment 1 of the present invention;

[0045] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure;

[0046] Figure 5 This is a schematic diagram of the bearing assembly device in Embodiment 1 of the present invention;

[0047] Figure 6 This is a schematic diagram of the bearing press-fit structure in Embodiment 1 of the present invention (the second drive unit and the platform are not shown);

[0048] Figure 7 This is a partial cross-sectional view of the push rod in Embodiment 1 of the present invention;

[0049] Figure 8 This is a structural schematic diagram of the bearing positioning block from the inner end view in Embodiment 1 of the present invention;

[0050] Figure 9 This is a structural schematic diagram of the bearing positioning block from the outer end in Embodiment 1 of the present invention;

[0051] Figure 10 This is a schematic diagram of the installation structure of the bearing feeding mechanism in Embodiment 1 of the present invention;

[0052] Figure 11 This is a schematic diagram of the bearing feeding mechanism in Embodiment 1 of the present invention (the material blocking component is not shown);

[0053] Figure 12 This is a schematic diagram of the bearing feeding mechanism in Embodiment 1 of the present invention (the material blocking component and the baffle plate are not shown).

[0054] The components include: 1. Machine base; 11. Tabletop; 12. Motor rotor; 13. Bearing; 2. Snap ring assembly device; 21. Vibrating feed tray; 22. Feeding chute; 23. Robot arm; 3. Discharge section; 31. Groove; 32. Front discharge section; 33. Rear discharge section; 34. Intermediate connecting section; 35. Front limiting plate; 36. Rear limiting plate; 37. Front lifting mechanism; 38. Rear lifting mechanism; 5. Bearing feeding mechanism; 5 1. Feeding block; 52. Feeding chute; 53. Discharge port; 54. Through port; 55. Feeding cylinder; 56. Feeding rod; 57. Mounting bracket; 510. Rear side plate; 511. Intermediate component; 512. Baffle plate; 513. Upper inclined plate; 514. Lower inclined plate; 515. C-shaped plate; 516. C-shaped opening; 520. Material blocking cylinder; 521. Material blocking plate; 522. Material blocking slider; 523. Material support plate; 524. V-shaped support groove. 6. Bearing press-fitting mechanism; 61. Positioning component; 62. Slide; 63. Bearing positioning block; 64. Rotary drive unit; 65. Bearing push hole; 66. Bearing positioning hole; 67. First drive unit; 68. Second drive unit; 69. Push rod; 601. Clearance hole; 602. Tapered guide hole; 603. First vertical plate; 604. Stop component; 605. U-shaped groove; 606. Rotating shaft; 641. Gear; 642. Rack; 643. Third drive cylinder; 644. Sliding limit block; 645. Slide groove. Detailed Implementation

[0055] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0056] Example 1: See Figure 1-12 As shown, an assembly equipment for a motor rotor for an automotive seat drive includes a machine base 1 and a snap ring assembly device 2 mounted on a top panel 11 of the machine base 1. A bearing assembly device is also provided on the rear side of the snap ring assembly device 2. A feeding section 3 is also provided on the panel 11. The feeding section 3 is located between the snap ring assembly device 2 and the bearing assembly device. The bearing assembly device includes two sets of bearing assembly mechanisms symmetrically arranged on both sides of the feeding section 3.

[0057] The bearing assembly mechanism includes a bearing pressing mechanism 6 and a bearing feeding mechanism 5. The bearing pressing mechanism 6 is disposed between the bearing feeding mechanism 5 and the snap ring assembly device 2.

[0058] The bearing press-fitting mechanism includes a bearing positioning part and a driving part. The platform 11 is provided with a positioning element 61, and the bottom of the bearing positioning part is slidably mounted on the positioning element 61. The driving part is configured to drive the bearing positioning part to move along the positioning element.

[0059] The bearing positioning part includes a slide 62, a bearing positioning block 63 rotatably mounted on the slide 62, and a rotation drive part 64 that drives the bearing positioning block 63 to rotate. The slide 62 is slidably disposed on the positioning member 61.

[0060] In this invention, the feeding section is longitudinally arranged in the middle of the table panel, and it is arranged longitudinally from front to back for conveying the motor rotor. When the motor rotor is conveyed to the snap ring assembly device, the snap ring assembly device simultaneously assembles snap rings at both ends of the motor rotor. After the snap ring is assembled, it is fed into the rear end through the feeding section, located between the two bearing pressing mechanisms. The bearing feeding mechanism is used for stacking and conveying bearings. When the bearing is in the bearing feeding mechanism, the bearing axis is perpendicular to the motor rotor axis. Therefore, a rotary drive is set on the bearing pressing mechanism. The rotary drive can drive the bearing positioning block to rotate 90 degrees. When receiving the bearing, the rotary drive drives the bearing positioning block to rotate 90 degrees, so that the bearing positioning block is facing the bearing feeding mechanism. The bearing feeding mechanism feeds a bearing into the bearing positioning block. Then, the rotary drive drives the bearing positioning block to rotate 90 degrees in the opposite direction, so that the bearing positioning block is facing the feeding section and also facing the motor rotor to which the bearing is to be assembled. At this time, the axis of the bearing and the axis of the motor shaft are parallel and coaxial. Then, the drive drives the bearing positioning part to move towards the motor rotor to press the bearing onto the motor rotor, completing the bearing pressing.

[0061] In this embodiment, the snap ring assembly device adopts two sets of snap ring assembly mechanisms symmetrically arranged on both sides of the feeding section 3. The snap ring assembly mechanism includes a vibrating feeding plate 21, a feeding slide 22, and a robot arm 23. The vibrating feeding plate transports the snap rings to the feeding slide in a sorted manner. Then, the robot arm grabs one snap ring (with the opening of the snap ring facing downwards) from the feeding slide each time, presses it down, and snaps it onto the motor rotor, thereby realizing the rapid assembly of the snap rings.

[0062] See Figure 3-9 As shown, the bearing positioning block 63 has a bearing push hole 65 with both ends through in the middle, and one end of the bearing positioning block 63 is also provided with a bearing positioning hole 66 coaxially arranged with the bearing push hole 65. The diameter of the bearing positioning hole 66 is larger than the diameter of the bearing push hole 65.

[0063] The driving unit includes a first driving unit 67 that drives the bearing positioning unit to move along the positioning member 61 and a second driving unit 68 disposed at the outer end of the carriage 62. The second driving unit 68 is provided with a push rod 69, and the second driving unit 68 drives the inner end of the push rod 69 to be inserted into the bearing push hole 65 or to disengage from the bearing push hole 65.

[0064] During operation, the rotary drive unit drives the bearing positioning block to rotate, aligning the bearing positioning hole with the bearing feeding mechanism. The bearing feeding mechanism then feeds the bearing into the bearing positioning hole. The rotary drive unit drives the bearing positioning block to rotate, aligning the bearing positioning hole inward and directly facing the motor rotor on the feeding unit. At this point, the bearing positioning hole and the end of the bearing facing the motor rotor are coaxial. The first drive unit then drives the bearing positioning block and the bearing above it to move inward, bringing the bearing into contact with the end of the motor rotor. The second drive unit then drives the push rod to move inward, inserting its inner end into the bearing push hole and contacting the end of the bearing, pushing the bearing inward to press it onto the motor rotor. Once the bearing is in place, the second drive unit drives the push rod to move outward, disengaging it from the bearing push hole and thus from the bearing positioning block. At this point, the first drive unit also drives the bearing positioning unit to move outward away from the rotor, returning it to its original position, ready for the next bearing pressing action.

[0065] See Figure 3 , 4 As shown in Figure 7, the push rod 69 is arranged parallel to the extension direction of the positioning member 61. The middle part of the push rod 69 is movably connected to the slide 62. The fixed end of the second drive part 68 is installed on the table panel 11. The drive end of the second drive part 68 is arranged directly opposite the bearing positioning part, and the drive end of the second drive part 68 is connected to the outer end of the push rod 69.

[0066] In this embodiment, since the outer end of the push rod is connected to the driving end of the second drive unit, if the push rod moves outward and completely disengages from the bearing positioning part, the inner end of the push rod will not be supported. It is a structure with one end suspended, which is prone to deformation under weight. When it moves inward later, it may not be able to be smoothly inserted into the bearing push hole. Therefore, the middle part of the push rod is movably connected to the slide, which can support, guide, and ensure that when the push rod moves inward, it can be stably inserted into the bearing push hole to push and press the bearing.

[0067] See Figure 7 As shown, the inner end of the push rod 69 is provided with a clearance hole 601, and the inner surface of the inner end of the clearance hole 601 is provided with a tapered guide hole 602.

[0068] Since the bearing needs to be installed on the motor rotor, there is a certain distance between the end face of the bearing and the end face of the motor rotor after the bearing is installed. Therefore, in order to ensure that the bearing is installed in place, a clearance hole is set so that the end of the motor rotor can be made to make way during the bearing press-fitting process. This ensures that the push rod can smoothly push the bearing sleeve onto the motor rotor and press the bearing in place. The setting of the tapered guide hole facilitates the machining of the clearance hole and also ensures that the end of the motor rotor can be smoothly inserted into the clearance hole.

[0069] The second drive unit 68 is a second drive cylinder. When the output shaft of the second drive cylinder is extended, the inner end of the push rod 69 passes through the bearing push hole 65 and the bearing positioning hole 66 and protrudes outside the bearing positioning block 63, thereby pushing the bearing away from the bearing positioning hole and pressing it onto the motor rotor.

[0070] When the output shaft of the second drive cylinder is retracted, the inner end of the push rod moves outward, disengages from the bearing push hole, and is positioned outside the bearing positioning block, thus not affecting the rotation of the bearing positioning block.

[0071] The second drive cylinder can be either a pneumatic cylinder or a hydraulic cylinder. If a larger pressing force is required, a hydraulic cylinder can be used; if a smaller pressing force is required, a pneumatic cylinder can be used.

[0072] See Figure 3-5 As shown, the first drive unit 67 is mounted on the table panel 11. The first drive unit 67 is a first drive cylinder. The fixed end of the first drive cylinder is connected to the table panel 11, and the drive end of the first drive cylinder is connected to the slide 62. When the output shaft of the first drive cylinder extends, it pushes the slide 62 away from the second drive unit 68. When the output shaft of the first drive cylinder retracts, it pulls the slide 62 closer to the second drive unit 68.

[0073] The first drive cylinder is either a pneumatic cylinder or a hydraulic cylinder. In this embodiment, the first drive cylinder is a pneumatic cylinder. When the output shaft of the pneumatic cylinder extends, it drives the slide to move inward. When the slide moves inward, it simultaneously drives the bearing positioning block and the bearing above it to move inward and approach the motor rotor, so that the bearing abuts against the end of the motor rotor. At the same time, the output shaft of the second drive cylinder extends and pushes the bearing to press onto the rotor through the push rod.

[0074] The presence of the clearance hole ensures that when the bearing is press-fitted onto the motor rotor, the end of the clearance hole abuts against the motor rotor, limiting both sides of the motor rotor to be pressed into place by the push rods on both sides, thus ensuring that the bearings on both sides are press-fitted into place.

[0075] See Figure 3 , 6 As shown, the first drive unit 67 is installed on the bottom surface of the table panel 11. The bottom surface of the table panel 11 is provided with a first strip-shaped through groove that communicates with the top surface of the table panel 11. The bottom of the slide 62 is connected to the drive end of the first drive unit 67 via the first upright plate 603.

[0076] An adjustable stop 604 is also provided on the bottom surface of the table panel 11. The stop 604 is located at the inner end of the first upright plate 603. The stop is made of bolts, so that the distance between the stop and the first upright plate can be adjusted.

[0077] In this embodiment, the first drive cylinder is mounted on the bottom surface of the platform panel without interfering with the installation of the second drive cylinder or affecting the installation of the push rod. The presence of the stop restricts the inward movement distance of the carriage, ensuring that the carriage stops moving inward after reaching a set position. When the second drive cylinder drives the push rod inward, the presence of the clearance hole prevents the bearing from moving further after the end of the motor rotor is inserted into the clearance hole. This ensures the stability and accuracy of the bearing installation; only the depth machining accuracy of the clearance hole needs to be confirmed.

[0078] See Figure 3 , 4 As shown in Figure 6, the carriage 62 has a U-shaped structure and a U-shaped groove 605. The opening of the U-shaped groove 605 faces inward. The bearing positioning block 63 is rotatably installed in the U-shaped groove 605 via a rotating shaft 606. The rotation drive unit 64 is configured to drive the rotating shaft 606 to rotate. The middle part of the rotating shaft is connected to the bearing positioning block, and the circumferential rotation of the rotating shaft and the bearing positioning block can be restricted by a spline.

[0079] The bottom of the carriage 62 is slidably connected to the positioning member 61, and the bottom plane of the U-shaped groove 605 is located above the top plane of the positioning member 61, so that when the bearing positioning block rotates, the positioning member will not affect the rotation of the bearing positioning block.

[0080] See Figure 3 , 4 As shown in Figure 6, the rotary drive unit 64 is mounted on the top of the carriage 62, the middle part of the rotating shaft 606 is connected to the bearing positioning block 63, the bottom of the rotating shaft 606 is rotatably connected to the bottom of the U-shaped groove 605, the top of the rotating shaft 606 is rotatably connected to the top of the U-shaped groove 605, and the top of the rotating shaft 606 passes through the U-shaped groove 605 and is located above the top of the carriage 62.

[0081] The rotary drive unit 64 includes a gear 641, a rack 642, and a third drive cylinder 643. The gear 641 is mounted on the top outer surface of the rotating shaft 606, and the rack 642 is disposed beside the gear 641 and meshes with the gear 641.

[0082] The third drive cylinder 643 is mounted on the top of the slide 62, and the output shaft of the third drive cylinder 643 is connected to the end of the rack 642. The third drive cylinder 643 is configured to drive the rack 642 to move, and drive the rotating shaft 606 and the bearing positioning block 63 to rotate via the gear 641.

[0083] The top of the slide 62 is also provided with a sliding limit block 644, which is located on the side of the gear 641. The side wall of the sliding limit block 644 is provided with a groove 645 facing the gear 641, and the rack 642 is slidably disposed in the groove 645.

[0084] In this embodiment, the third drive cylinder is a pneumatic cylinder. The extension and retraction of the output shaft of the third drive cylinder drives the rack to move. Utilizing the meshing of the rack and gear, the bearing positioning block rotates 90° clockwise and 90° counterclockwise. After receiving material from the rear, it then drives the bearing positioning hole to rotate to the inner end, followed by the pressing of the bearing. The sliding limit block restricts the movement distance of the rack, thereby precisely controlling the rotation angle of the bearing positioning block, i.e., precisely controlling the bearing positioning block to rotate 90 degrees.

[0085] See Figure 1 , 5 As shown in Figures 10-12, the bearing feeding mechanism includes a feeding block 51 and a feeding component mounted on the platform 11. The feeding block 51 is provided with a feeding groove 52 that is inclined downward from the outside to the inside. The top of the outer end of the feeding groove 52 is connected to the top surface of the feeding block 51.

[0086] The front side of the feeding block 51 is provided with a discharge port 53 that communicates with the inner end of the feeding groove 52, and the rear side of the feeding block 51 is provided with a through port 54 that communicates with the inner end of the feeding groove 52. The through port 54 is positioned opposite the discharge port 53, and the discharge port is positioned opposite the bearing positioning block.

[0087] The feeding component is installed on the rear side of the loading block 51. The feeding component includes a feeding cylinder 55 and a feeding rod 56. The feeding cylinder 55 is installed on the rear side of the loading block 51. The rear end of the feeding rod 56 is connected to the output shaft of the feeding cylinder 55. The front end of the feeding rod 56 is inserted into the through-hole 54. The feeding cylinder 55 drives the feeding rod 56 to move back and forth. When the output shaft of the feeding cylinder 55 is retracted, the front end of the feeding rod 56 is retracted into the through-hole 54. When the output shaft of the feeding cylinder 55 is extended, the front end of the feeding rod 56 passes through the feeding groove 52 and the discharge port 53 and is positioned on the front side of the loading block 51, pushing the bearing in the discharge groove into the bearing positioning block. When the bearing positioning hole of the bearing positioning block rotates to face the discharge port, the feeding cylinder drives the feeding rod forward, pushing a bearing forward into the bearing positioning hole. Then, the bearing positioning block rotates 90 degrees in the opposite direction, so that the bearing positioning hole faces the motor rotor above the feeding section, for subsequent bearing pressing. During the bearing pressing action, the feeding cylinder drives the feeding rod backward, and the next bearing rolls into the feeding trough at the discharge port, waiting for the next bearing to be fed.

[0088] In this arrangement, mechanisms can be set on both sides of the extending direction of the feeding section as much as possible, making full use of the space on both sides of the feeding section for conveying the motor rotor. This reduces space waste and allows the motor rotor to be manufactured on an automated production line, with the bearing pressing process being one of the steps. In this embodiment, the bearing 13 enters the feeding trough from the top of the outer end of the feeding trough. The bearing rolls inward through the inclined feeding trough to the feeding trough at the discharge port. After rolling into the feeding trough at the discharge port, it waits for the bearing pressing mechanism to receive the material. When a bearing is fed into the bearing pressing mechanism, the output shaft of the feeding cylinder extends, driving the feeding rod forward to push the bearing out of the discharge port and into the bearing pressing mechanism. Then the output shaft of the feeding cylinder retracts to its original position (when the feeding rod moves forward, it will block the bearing next to the feeding trough at the discharge port, preventing the bearing from rolling inward into the feeding trough at the discharge port). Then the next bearing will continue to roll inward into the feeding trough at the discharge port.

[0089] See Figure 10-12 As shown, the feeding cylinder 55 is connected to the rear side of the feeding block 51 via the mounting bracket 57.

[0090] In this embodiment, the distance between the feeding trough and the rear end face of the feeding block is relatively short, and the bearing extends a certain distance from the discharge port. The feeding rod needs a certain length. Therefore, in order to ensure that the front end of the feeding rod can retract into the passage after the output shaft of the feeding cylinder retracts, the mounting bracket is used to position the feeding cylinder backward away from the feeding trough, so that the front end of the feeding rod can retract into the passage. When the output shaft of the feeding cylinder extends, the feeding rod can push the bearing to disengage from the feeding trough and the discharge port and be fed out.

[0091] See Figure 11 , 12 As shown, the feeding block 51 includes a rear side plate 510, a middle part 511, and a baffle plate 512. The middle part 511 has an outwardly facing connection opening. The middle part 511 is installed on the front side of the rear side plate 510. The baffle plate 512 is connected to the front side of the middle part 511. The connection opening between the baffle plate 512 and the rear side plate 510 forms the feeding groove 52.

[0092] The feeding component is installed on the rear side of the rear side plate 510, and the through port 54 is provided on the rear side plate 510.

[0093] In this embodiment, the feeding block is composed of three parts, which are easy to assemble, easy to repair and replace, and easy to process the feeding trough.

[0094] See Figure 11 , 12As shown, there is a gap between the inner end face of the baffle plate 512 and the inner end face of the connecting opening, and the inner end of the baffle plate 512 and the inner end of the connecting opening constitute the discharge port 53.

[0095] The intermediate component 511 includes an upper inclined plate 513, a lower inclined plate 514, and a C-shaped plate 515. The lower inclined plate 514 is arranged parallel to the lower part of the upper inclined plate 513. The upper inclined plate 513 and the lower inclined plate 514 are inclined downward from the outside to the inside. The outer end of the C-shaped plate 515 is provided with a C-shaped opening 516. The inner ends of the upper inclined plate 513 and the lower inclined plate 514 are connected to the outer end face of the C-shaped plate 515, and the distance between the upper inclined plate 513 and the lower inclined plate 514 is set directly opposite to the C-shaped opening 516.

[0096] The baffle plate 512 is installed on the front side of the upper inclined plate 513 and the lower inclined plate 514. The inner end face of the baffle plate 512 is flush with the inner end face of the upper inclined plate 513 and the lower inclined plate 514. The front end of the C-shaped opening 516 constitutes the discharge port 53.

[0097] In this embodiment, the middleware is composed of three parts, which also facilitates its manufacturing and reduces the amount of materials used.

[0098] See Figure 10 As shown, a material blocking component is also provided, which includes a material blocking cylinder 520 and a material blocking plate 521. A material blocking slider 522 is placed on the top surface of the feeding block 51. The material blocking cylinder 520 is installed on the top surface of the feeding block 51. The output shaft of the material blocking cylinder 520 is connected to the material blocking slider 522. The material blocking plate 521 is disposed on the front side of the feeding block 51. The rear top side of the material blocking plate 521 is connected to the front end of the material blocking slider 522. When the output shaft of the material blocking cylinder 520 is retracted, the material blocking plate 521 is disposed inside the discharge port 53. When the output shaft of the material blocking cylinder 520 is extended, the material blocking plate 521 is moved to the side of the discharge port 53.

[0099] In this embodiment, the baffle plate is located at the inner end of the shielding plate, and it is located on the front side of the C-shaped plate.

[0100] In this embodiment, when the bearing is in the feeding trough, the bearing axis is parallel to the feeding rod. Therefore, when the bearing rolls inward to the feeding trough at the discharge port, it may fall out of the discharge port. To ensure that each bearing does not fall out of the discharge port when it rolls inward to the feeding trough at the discharge port, a baffle component is also provided. When the bearing rolls inward to the feeding trough at the discharge port, the output shaft of the baffle cylinder retracts, driving the baffle slider and baffle plate to move outward, so that the baffle plate is in the discharge port and abuts against the shielding plate. The baffle plate can also limit the movement. At this time, when the bearing rolls inward to the feeding trough at the discharge port, the bearing will be blocked by the baffle plate and will not fall out of the feeding trough. When the feeding rod needs to push the bearing out from the inner end of the feeding groove onto the bearing pressing mechanism, the output shaft of the baffle cylinder extends, driving the baffle plate to move inward away from the discharge port. Then, the feeding component feeds the bearing out from the feeding groove and the discharge port into the bearing pressing mechanism. This cycle is repeated to ensure the stability of the bearing feeding. In this invention, after the bearing pressing mechanism receives the bearing, the axis of the bearing will be perpendicular to the axis of the motor rotor. Therefore, the bearing pressing mechanism can also be rotated 90° to make the bearing and the motor rotor coaxial, so as to ensure that the bearing pressing mechanism can smoothly, quickly and stably press the bearing onto the motor rotor.

[0101] See Figure 10-12 As shown, a material tray 523 is also provided on the rear side of the outer end of the feeding trough 52, and the front end of the material tray 523 is connected to the feeding block 51.

[0102] The material tray 523 is provided with a plurality of V-shaped grooves 524 at intervals, and the plurality of V-shaped grooves 524 are arranged at intervals from front to back, and the V-shaped grooves 524 are connected to the top of the outer end of the feeding trough 52.

[0103] In this embodiment, the top of the outer end of the baffle plate faces the V-shaped groove. In this method, multiple bearings can be placed sequentially from front to back in each V-shaped groove, with the bearing axis parallel to the extension direction of the V-shaped groove. The material tray can be tilted downwards from back to front, automatically sliding forward under gravity, causing the bearing at the front end of the V-shaped groove to fall into the feeding trough (the width of the feeding trough is slightly larger than the thickness of a bearing, so at most one bearing can move forward and fall into the feeding trough at a time from each V-shaped groove; several bearings can also be stacked from bottom to top in the feeding trough at the front end of the material tray, with the excess bearings still in the V-shaped groove). Alternatively, a top-loading component, such as a spring or cylinder, can be provided at the rear end of the V-shaped groove to push the bearings forward, causing them to fall into the feeding trough one by one. In this method, the top space is minimized, occupying only the space on both sides of the material feeding section's extension direction. Corresponding mechanisms can be set on both sides of the motor rotor's conveying direction, facilitating the pressing of the motor rotor bearings and the arrangement of other assembly mechanisms of the motor rotor.

[0104] See Figure 1 , 2 As shown, the feeding part 3 includes a front feeding part 32 with a groove 31 in the middle and a rear feeding part 33. The top surfaces of the front feeding part 32 and the rear feeding part 33 are inclined downward from front to back.

[0105] An intermediate connecting part 34 with a groove 31 in the middle is provided between the front feeding part 32 and the rear feeding part 33. The top surface of the intermediate connecting part 34 is inclined downward from front to back. The front end of the intermediate connecting part 34 contacts the rear end of the front feeding part 32, and the rear end of the intermediate connecting part 34 contacts the front end of the rear feeding part 33. The grooves of the front feeding part, the rear feeding part and the intermediate connecting part are connected.

[0106] The front end of the groove of the intermediate connecting part 34 is provided with a front limiting plate 35, and the front end of the groove of the rear feeding part 33 is provided with a rear limiting plate 36.

[0107] The front end of the front feeding part 32 is provided with a front lifting mechanism 37 in the groove, and the front lifting mechanism 37 is located near the front limiting plate 35; the rear end of the middle connecting part 34 is provided with a rear lifting mechanism 38 in the groove, and the rear lifting mechanism 38 is located near the rear limiting plate 36.

[0108] In this embodiment, the groove is designed to allow space in the middle of the motor rotor. The shafts at both ends of the motor rotor are positioned on the top surface of the corresponding feeding section or connecting section, and are conveyed backward via the inclined top surface. When the retaining ring is installed, the two ends abut against the front end surface of the middle connecting section, while the middle abuts against the front limiting plate. After the retaining ring is installed, the front lifting mechanism lifts up, pushing the motor rotor backward onto the middle connecting section. When the middle abuts against the rear limiting plate and the two ends abut against the front end surface of the rear feeding section, the two ends of the motor rotor are aligned with the bearing positioning parts on both sides, allowing the bearings on both sides to be directly pressed onto the motor rotor. After the bearings are pressed into place, the rear lifting mechanism lifts the motor rotor, so that it passes the rear limiting plate and is positioned on the rear feeding section, rolling backward.

[0109] The front and rear lifting mechanisms both employ a combination of lifting cylinders and lifting blocks. The output shaft at the top of the lifting cylinder is connected to the lifting block. The top surface of the lifting block is tilted downwards from front to back. Therefore, when the lifting cylinder drives the lifting block to move upwards, it will push the motor rotor upwards through the lifting block. When its height is above the front end of the middle connecting part or above the front end of the rear discharge part, the motor rotor will rotate backwards and fall onto the middle connecting part or the rear discharge part, thus realizing the automatic rearward conveying of the motor rotor.

Claims

1. A motor rotor assembly device for an automobile seat driver, comprising a machine table, a clasp spring assembly device mounted on a top surface plate of the machine table, characterized in that: A bearing assembly device is also provided on the side of the snap ring assembly device, and a material feeding part is also provided on the platform. The material feeding part is located between the snap ring assembly device and the bearing assembly device. The bearing assembly device includes two sets of bearing assembly mechanisms symmetrically arranged on both sides of the material feeding part. The bearing assembly mechanism includes a bearing pressing mechanism and a bearing feeding mechanism, wherein the bearing pressing mechanism is disposed between the bearing feeding mechanism and the snap ring assembly device; The bearing press-fitting mechanism includes a bearing positioning part and a driving part. The platform is provided with a positioning element. The bottom of the bearing positioning part is slidably mounted on the positioning element. The driving part is configured to drive the bearing positioning part to move along the positioning element. The bearing positioning part includes a slide, a bearing positioning block rotatably mounted on the slide, and a rotary drive part that drives the bearing positioning block to rotate. The slide is slidably disposed on the positioning member. The bearing positioning block has a bearing push hole through both ends in the middle, and one end of the bearing positioning block also has a bearing positioning hole coaxially arranged with the bearing push hole. The diameter of the bearing positioning hole is larger than the diameter of the bearing push hole. The driving part includes a first driving part that drives the bearing positioning part to move along the positioning member and a second driving part arranged at the outer end of the carriage. The second driving part is provided with a push rod. The second driving part drives the inner end of the push rod to be inserted into or disengaged from the bearing push hole. The push rod is arranged parallel to the extension direction of the positioning member. The middle part of the push rod is movably connected to the carriage. The fixed end of the second driving part is installed on the platform. The driving end of the second driving part is arranged directly opposite the bearing positioning part, and the driving end of the second driving part is connected to the outer end of the push rod. The inner end of the push rod is provided with a clearance hole, and the inner surface of the inner end of the clearance hole is provided with a tapered guide hole. The second drive unit is a second drive cylinder. When the output shaft of the second drive cylinder is extended, the inner end of the push rod passes through the bearing push hole and the bearing positioning hole and protrudes to the outside of the bearing positioning block. When the output shaft of the second drive cylinder is retracted, the inner end of the push rod moves outward to disengage from the bearing push hole and is positioned outside the bearing positioning block; The first drive unit is mounted on the platform. The first drive unit is a first drive cylinder. The fixed end of the first drive cylinder is connected to the platform, and the drive end of the first drive cylinder is connected to the slide. When the output shaft of the first drive cylinder extends, it pushes the slide away from the second drive unit. When the output shaft of the first drive cylinder retracts, it pulls the slide closer to the second drive unit. The feeding section includes a front feeding section and a rear feeding section with a groove in the middle, and the top surfaces of the front feeding section and the rear feeding section are inclined downward from front to back. A middle connecting part with a groove in the middle is provided between the front feeding part and the rear feeding part. The top surface of the middle connecting part is inclined downward from front to back. The front end of the middle connecting part contacts the rear end of the front feeding part, and the rear end of the middle connecting part contacts the front end of the rear feeding part. The grooves of the front feeding part, the rear feeding part and the middle connecting part are connected. The front end of the groove of the intermediate connecting part is provided with a front limiting plate, and the front end of the groove of the rear feeding part is provided with a rear limiting plate. The rear end of the groove in the front feeding section is provided with a front lifting mechanism, which is located close to the front limiting plate; the rear end of the groove in the middle connecting section is provided with a rear lifting mechanism, which is located close to the rear limiting plate.

2. The motor rotor assembly equipment for automotive seat drive according to claim 1, characterized in that: The first drive unit is installed on the bottom surface of the table panel, and the bottom surface of the table panel is provided with a first strip-shaped through groove that communicates with the top surface of the table panel. The bottom of the carriage is connected to the drive end of the first drive unit via a first upright plate. An adjustable stop is also provided on the bottom surface of the table panel, and the stop is located at the inner end of the first upright plate.

3. The motor rotor assembly equipment for automotive seat drive according to claim 1, characterized in that: The carriage has a U-shaped structure and a U-shaped groove. The opening of the U-shaped groove faces inward. The bearing positioning block is rotatably installed in the U-shaped groove via a rotating shaft. The rotation drive unit is configured to drive the rotating shaft to rotate. The bottom of the carriage is slidably connected to the positioning member, and the bottom plane of the U-shaped groove is located above the top plane of the positioning member; The rotary drive unit is mounted on the top of the carriage, the middle part of the rotating shaft is connected to the bearing positioning block, the bottom of the rotating shaft is rotatably connected to the bottom of the U-shaped groove, the top of the rotating shaft is rotatably connected to the top of the U-shaped groove, and the top of the rotating shaft passes through the U-shaped groove and is located above the top of the carriage. The rotary drive unit includes a gear, a rack, and a third drive cylinder. The gear is mounted on the top outer surface of the rotating shaft, and the rack is disposed beside the gear and meshes with the gear. The third drive cylinder is mounted on the top of the slide, and the output shaft of the third drive cylinder is connected to the end of the rack. The third drive cylinder is configured to drive the rack to move, and drive the rotating shaft and bearing positioning block to rotate via the gear.

4. The motor rotor assembly equipment for automotive seat drive according to claim 1, characterized in that: The bearing feeding mechanism includes a feeding block and a feeding component installed on the platform. The feeding block has a feeding groove that is inclined downward from the outside to the inside. The top of the outer end of the feeding groove is connected to the top surface of the feeding block. The front side of the feeding block is provided with a discharge port that communicates with the inner end of the feeding trough, and the rear side of the feeding block is provided with a through port that communicates with the inner end of the feeding trough. The through port is positioned directly opposite the discharge port, and the discharge port is positioned directly opposite the bearing positioning block. The feeding component is installed on the rear side of the loading block. The feeding component includes a feeding cylinder and a feeding rod. The feeding cylinder is installed on the rear side of the loading block. The rear end of the feeding rod is connected to the output shaft of the feeding cylinder. The front end of the feeding rod is inserted into the through-hole. The feeding cylinder drives the feeding rod to move back and forth and pushes the bearing in the discharge groove into the bearing positioning block.

5. The motor rotor assembly equipment for automotive seat drive according to claim 4, characterized in that: The feeding cylinder is connected to the rear side of the feeding block via a mounting bracket; The feeding block includes a rear side plate, a middle component, and a baffle plate. The middle component has an outwardly facing connection opening. The middle component is installed on the front side of the rear side plate. The baffle plate is connected to the front side of the middle component. The connection opening between the baffle plate and the rear side plate forms the feeding trough. The feeding component is installed on the rear side of the rear side plate, and the through-hole is provided on the rear side plate.

6. The motor rotor assembly equipment for automotive seat drive according to claim 4, characterized in that: A material-blocking component is also provided, which includes a material-blocking cylinder and a material-blocking plate. A material-blocking slider is placed on the top surface of the feeding block. The material-blocking cylinder is installed on the top surface of the feeding block. The output shaft of the material-blocking cylinder is connected to the material-blocking slider. The material-blocking plate is disposed on the front side of the feeding block, and the rear top side of the material-blocking plate is connected to the front end of the material-blocking slider. When the output shaft of the material-blocking cylinder is retracted, the material-blocking plate is disposed inside the discharge port. When the output shaft of the material-blocking cylinder is extended, the material-blocking plate is moved to the side of the discharge port. A material tray is also provided on the rear side of the outer end of the feeding trough, and the front end of the material tray is connected to the feeding block. The material pallet is provided with multiple V-shaped grooves at intervals, and the multiple V-shaped grooves are arranged at intervals from front to back. The V-shaped grooves are connected to the top of the outer end of the feeding trough.

Images