Stator assembly machine and assembly method thereof

Abstract

The application discloses a stator assembling machine and an assembling method thereof, and relates to the technical field of motor automatic assembling equipment. The stator assembling machine comprises a rack, a shell feeding mechanism, a first rotating disc mechanism, a framework feeding and assembling mechanism, an electromagnetic pole plate feeding and assembling mechanism, a combined stator pressing mechanism for pressing one single-phase stator into another single-phase stator to form a combined stator, a second rotating disc mechanism for driving the combined stator to move, a combined stator transferring mechanism for transferring the combined stator from the first rotating disc mechanism to the second rotating disc mechanism, and a bending mechanism for bending a PIN needle of the combined stator. The shell feeding, shell moving, framework feeding and assembling, electromagnetic pole plate feeding and assembling, combined stator pressing, combined stator transferring, combined stator moving and combined stator bending are automatically realized through the above mechanisms, and the assembling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of automated motor assembly equipment, and in particular to a stator assembly machine and its assembly method. Background Technology

[0002] Electric motors have a wide range of applications. The assembly process involves combining the housing, frame, and electromagnetic pole plates to form a single-phase stator. The frame is then assembled between the housing and the electromagnetic pole plates. After the single-phase stator is assembled, two single-phase stators are combined into a single stator, and then the pins of the combined stator are bent. Most existing stator assembly machines require manual assistance for the feeding and transfer processes, resulting in high labor costs. Before bending the pins, they need to be straightened from root to tail. Existing bending mechanisms often suffer from poor bending accuracy due to issues such as not pressing down the stator or not defining the pin position. Therefore, there is an urgent need to develop a stator assembly machine and its assembly method to meet practical needs. Summary of the Invention

[0003] In view of the above, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a stator assembly machine and its assembly method. This machine automates the feeding and movement of the housing, the feeding and assembly of the frame, the feeding and assembly of the electromagnetic pole plates, the pressing, transfer, and bending of the combined stator by employing a housing feeding mechanism, a first turntable mechanism, a frame feeding and assembly mechanism, an electromagnetic pole plate feeding and assembly mechanism, a combined stator pressing mechanism, a combined stator transfer mechanism, a combined stator movement mechanism, and a combined stator bending mechanism, thereby improving assembly efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A stator assembly machine includes a frame, a housing feeding mechanism for feeding housings, a first turntable mechanism for moving materials, a frame feeding and assembly mechanism for feeding a frame and assembling the frame into the housing, an electromagnetic pole plate feeding and assembly mechanism for feeding electromagnetic pole plates and assembling them onto the housing frame to form a single-phase stator, a combined stator pressing mechanism for pressing one single-phase stator into another single-phase stator to form a combined stator, a second turntable mechanism for moving the combined stator, and a mechanism for pressing the combined stator into the housing frame. The machine frame includes a stator transfer mechanism for transferring the stator from the first turntable mechanism to the second turntable mechanism, a bending mechanism for bending the pins of the stator, and a worktable for mounting the first and second turntable mechanisms. The machine housing feeding mechanism, the frame feeding and assembly mechanism, the electromagnetic pole plate feeding and assembly mechanism, and the stator pressing mechanism are sequentially distributed along the rotation direction of the first turntable. The stator transfer mechanism is located between the first and second turntable mechanisms, and the bending mechanism is located beside the second turntable mechanism.

[0006] As a preferred embodiment, the stator assembly machine further includes a detection mechanism for detecting whether the electromagnetic pole plates are assembled in place, a defective product transfer mechanism for transferring unqualified assembled stators, and a discharge mechanism for discharging assembled stators. The detection mechanism is located between the electromagnetic pole plate loading and assembly mechanism and the assembled stator pressing mechanism, the defective product transfer mechanism is located next to the first turntable mechanism, and the discharge mechanism is located next to the second turntable mechanism.

[0007] As a preferred embodiment: the bending mechanism includes a pressing and straightening assembly for pressing the stator and straightening the stator's pins, and a bending drive assembly for bending the stator's pins. The pressing and straightening assembly is located above the bending drive assembly. The pressing and straightening assembly has a pressure plate and a shift fork, and the bending drive assembly has a feeding seat for placing the pins. The feeding seat is provided with a receiving groove for accommodating the pins, and the pins are longitudinally located in the receiving groove. The pressure plate presses the stator, the shift fork is movably located in the receiving groove, and the feeding seat rotates to drive the pins in the receiving groove to bend from their roots.

[0008] As a preferred embodiment: the combined stator pressing mechanism includes a pressing support, a vertical movement drive assembly, a horizontal movement drive assembly, a pressing drive cylinder, a guide shaft, and a rotary clamping cylinder. The vertical movement drive assembly is mounted on the pressing support, the horizontal movement drive assembly is mounted at the output end of the vertical movement drive assembly, the pressing drive cylinder is mounted at the output end of the horizontal movement drive assembly, the guide shaft is mounted at the shaft end of the pressing drive cylinder, and the rotary clamping cylinder is mounted on the pressing support, with the rotary clamping cylinder facing the guide shaft.

[0009] As a preferred embodiment: the housing loading mechanism includes a first conveying component and a first loading component. The first loading component is located beside the first conveying component. The first loading component includes a first support frame, a first transverse moving device, a first vertical moving device, and a first clamping cylinder. The first transverse moving device is mounted on the first support frame. The first vertical moving device is mounted at the output end of the first transverse moving device. The first clamping cylinder is mounted at the output end of the first vertical moving device.

[0010] As a preferred embodiment: the skeleton feeding and assembly mechanism includes a second conveying component and a second feeding component. The second feeding component is located beside the second conveying component. The second feeding component includes a second support frame, a second horizontal moving device, a second vertical moving device, and a second vacuum suction cylinder. The second horizontal moving device is mounted on the second support frame, the second vertical moving device is mounted at the output end of the second horizontal moving device, and the second vacuum suction cylinder is mounted at the output end of the second vertical moving device.

[0011] As a preferred embodiment: the electromagnetic electrode plate loading and assembly mechanism includes a third conveying component, a third feeding component, a third sliding component, and a third pressing component. The third feeding component is located next to the third conveying component. The third feeding component includes a third support frame, a third transverse moving device, a third vertical moving device, and a third clamping cylinder. The third transverse moving device is mounted on the third support frame, the third vertical moving device is mounted at the output end of the third transverse moving device, and the third clamping cylinder is mounted at the output end of the third vertical moving device.

[0012] As a preferred embodiment: the third sliding assembly includes a sliding drive cylinder and a sliding material seat, the sliding material seat being mounted on the shaft end of the sliding drive cylinder; the third pressing assembly includes a pressing drive cylinder, a lateral movement cylinder and a vacuum suction cylinder, the lateral movement cylinder being mounted on the shaft end of the pressing drive cylinder, the vacuum suction cylinder being mounted on the shaft end of the lateral movement cylinder, and the vacuum suction cylinder corresponding to the sliding material seat.

[0013] As a preferred embodiment, the detection mechanism includes a detection support frame, a lifting and moving cylinder, a pressure head, and a height sensor. The pressure head is elastically mounted on the shaft end of the lifting and moving cylinder, and the height sensor is located beside the pressure head.

[0014] The assembly method of the stator assembly machine includes the following steps:

[0015] First, the housing feeding mechanism feeds the housing onto the first turntable mechanism;

[0016] Second, when the first turntable mechanism drives the machine housing to move to the side of the skeleton feeding and assembly mechanism, the skeleton feeding and assembly mechanism assembles the skeleton into the machine housing.

[0017] Third, the first turntable mechanism drives the housing frame to move to the side of the electromagnetic pole plate loading and assembly mechanism, and the electromagnetic pole plate loading and assembly mechanism assembles the electromagnetic pole plate onto the housing frame to form a single-phase stator.

[0018] Fourth, the first turntable mechanism drives the single-phase stator to move to the side of the combined stator pressing mechanism, and the combined stator pressing mechanism presses one single-phase stator into another unidirectional stator to form a combined stator;

[0019] Fifth, the combined stator transfer mechanism transfers the combined stator from the first turntable mechanism to the second turntable mechanism;

[0020] Sixth, the second turntable mechanism drives the combined stator to move to the side of the bending mechanism, and the bending mechanism bends the pins of the combined stator.

[0021] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, by employing a housing feeding mechanism, a first turntable mechanism, a skeleton feeding and assembly mechanism, an electromagnetic pole plate feeding and assembly mechanism, a combined stator pressing mechanism, a combined stator transfer mechanism, a second turntable mechanism, and a bending mechanism, the feeding and movement of the housing, the feeding and assembly of the skeleton, the feeding and assembly of the electromagnetic pole plates, the pressing, transfer, movement, and bending of the combined stator are automatically realized, thereby improving assembly efficiency and reducing labor costs. By employing a pressing and straightening component and a bending drive component, the straightening and bending of the PIN pins are automatically realized, further reducing labor costs. By using a pressure plate to press the stator, the position of the stator is prevented from shifting during the bending process, improving bending accuracy and reducing the defect rate.

[0022] To more clearly illustrate the structural features and effects of the present invention, a detailed description is provided below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the stator assembly machine of the present invention;

[0024] Figure 2 This is a top view of the stator assembly machine of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the first feeding component of the present invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the second feeding component of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the third feeding component, the third sliding component, and the third pressing component of the present invention.

[0028] Figure 6This is a three-dimensional structural diagram of the detection mechanism of the present invention;

[0029] Figure 7 This is a three-dimensional structural diagram of the combined stator pressing mechanism of the present invention;

[0030] Figure 8 This is a first-view perspective three-dimensional structural diagram of the bending mechanism of the present invention;

[0031] Figure 9 This is a two-dimensional structural diagram of the bending mechanism of the present invention from a second perspective.

[0032] Figure 10 This is a third-view perspective three-dimensional structural diagram of the bending mechanism of the present invention;

[0033] Figure 11 This invention Figure 9 Enlarged view of point M in the middle.

[0034] Explanation of reference numerals in the attached diagram:

[0035] In the diagram: 10. Frame; 11. Workbench; 20. Housing feeding mechanism; 21. First conveying assembly; 22. First feeding assembly; 221. First support frame; 222. First transverse movement device; 223. First vertical movement device; 224. First clamping cylinder; 30. First turntable mechanism; 31. Second turntable mechanism; 40. Frame feeding and assembly mechanism; 41. Second conveying assembly; 42. Second feeding assembly; 421. Second support frame; 422. Second transverse movement device; 423. Second vertical movement device ; 424. Second vacuum suction cylinder; 50. Electromagnetic pole plate loading and assembly mechanism; 51. Third conveying assembly; 52. Third feeding assembly; 521. Third support frame; 522. Third transverse movement device; 523. Third vertical movement device; 524. Third clamping cylinder; 53. Third sliding assembly; 531. Sliding drive cylinder; 532. Sliding material seat; 54. Third pressing assembly; 541. Downward drive cylinder; 542. Transverse movement cylinder; 55. Vacuum suction cylinder; 60. Detection mechanism; 61. Detection 62. Support frame; 63. Lifting and moving cylinder; 70. Press head; 71. Combined stator pressing mechanism; 72. Pressing support seat; 73. Vertical movement drive assembly; 74. Horizontal movement drive assembly; 75. Pressing drive cylinder; 76. Guide shaft; 80. Rotary clamping cylinder; 81. Combined stator transfer mechanism; 90. Defective product transfer mechanism; 91. Bending mechanism; 91. Pressing and straightening assembly; 911. Bracket; 9111. Buffer limiter; 9121. Vertical drive cylinder; 9122. Vertical slide; 9122 1. Abutment block; 9131. Lifting drive cylinder; 9132. Lifting slide; 9141. Longitudinal drive cylinder; 9142. Longitudinal slide; 915. Pressure plate; 92. Bending drive assembly; 921. Support; 922. Fiber optic sensor; 9221. Groove; 923. Rotary drive motor; 924. Rotating shaft; 925. Circular baffle; 9251. Opening; 926. Discharge seat; 9261. Receiving groove; 100. Discharge mechanism; 110. Discharge assembly; 120. Discharge conveying assembly. Detailed Implementation

[0036] The present invention is as follows Figures 1 to 11As shown, a stator assembly machine includes a frame 10, a housing feeding mechanism 20 for feeding the housing, a first turntable mechanism 30 for moving the material, a frame feeding and assembly mechanism 40 for feeding the frame and assembling the frame into the housing, an electromagnetic pole plate feeding and assembly mechanism 50 for feeding electromagnetic pole plates and assembling them onto the housing frame to form a single-phase stator, a combined stator pressing mechanism 70 for pressing one single-phase stator into another single-phase stator to form a combined stator, a second turntable mechanism 31 for moving the combined stator, a combined stator transfer mechanism 80 for transferring the combined stator from the first turntable mechanism 30 to the second turntable mechanism 31, and a bending mechanism 90 for bending the pins of the combined stator, wherein:

[0037] The frame 10 is provided with a workbench 11 for installing the first turntable mechanism 30 and the second turntable mechanism 31; the housing feeding mechanism 20, the frame feeding assembly mechanism 40, the electromagnetic pole plate feeding assembly mechanism 50 and the combined stator pressing mechanism 70 are distributed sequentially along the rotation direction of the first turntable; the combined stator transfer mechanism 80 is located between the first turntable mechanism 30 and the second turntable mechanism 31; the bending mechanism 90 is located beside the second turntable mechanism 31.

[0038] By employing a housing feeding mechanism 20, a first turntable mechanism 30, a frame feeding and assembly mechanism 40, an electromagnetic pole plate feeding and assembly mechanism 50, a combined stator pressing mechanism 70, a combined stator transfer mechanism 80, a second turntable mechanism 31, and a bending mechanism 90, the feeding and movement of the housing, the feeding and assembly of the frame, the feeding and assembly of the electromagnetic pole plates, the pressing, transfer, movement, and bending of the combined stator are automated, thereby improving assembly efficiency and reducing labor costs.

[0039] The stator assembly machine also includes a detection mechanism 60 for detecting whether the electromagnetic pole plates are assembled in place, a defective product transfer mechanism 81 for transferring unqualified assembled stators, and a discharge mechanism 100 for discharging assembled stators. The detection mechanism 60 is located between the electromagnetic pole plate loading and assembly mechanism 50 and the assembled stator pressing mechanism 70. The defective product transfer mechanism 81 is located next to the first turntable mechanism 30, and the discharge mechanism 100 is located next to the second turntable mechanism 31.

[0040] After the electromagnetic electrode plate loading and assembly mechanism 50 assembles the electromagnetic electrode plate into the housing frame, the detection mechanism 60 detects the height of the electromagnetic electrode plate and determines whether the assembly is qualified based on the height of the electromagnetic electrode plate; the defective product transfer mechanism 81 transfers the unqualified assembled stator to the discharge mechanism; after the bending mechanism 90 bends the PIN pins of the assembled stator, the second turntable mechanism 31 moves the assembled stator to the side of the discharge mechanism 100, and the discharge mechanism 100 discharges the assembled stator.

[0041] The housing loading mechanism 20 includes a first conveying component 21 and a first loading component 22. The first loading component 22 is located beside the first conveying component 21. The first loading component 22 includes a first support frame 221, a first horizontal moving device 222, a first vertical moving device 223, and a first clamping cylinder 224. The first horizontal moving device 222 is mounted on the first support frame 221. The first vertical moving device 223 is mounted at the output end of the first horizontal moving device 222. The first clamping cylinder 224 is mounted at the output end of the first vertical moving device 223.

[0042] The first conveying component 21 conveys the machine housing, the first clamping cylinder 224 clamps the machine housing on the first conveying component 21, the first horizontal moving device 222 and the first vertical moving device 223 drive the first clamping cylinder 224 to move horizontally and vertically, and load the machine housing on the first conveying component 21 onto the first turntable mechanism 30.

[0043] The first turntable mechanism 30 and the second turntable mechanism 31 both include a rotary motor, a turntable, and a fixture for placing materials. The turntable is mounted on the shaft end of the rotary motor, and the fixture is elastically and liftably mounted on the turntable. The rotary motor drives the turntable to rotate, and the rotation of the turntable causes the materials on the fixture to move.

[0044] The skeleton loading and assembly mechanism 40 includes a second conveying component 41 and a second loading component 42. The second loading component 42 is located beside the second conveying component 41. The second loading component 42 includes a second support frame 421, a second transverse moving device 422, a second vertical moving device 423, and a second vacuum suction cylinder 424. The second transverse moving device 422 is mounted on the second support frame 421. The second vertical moving device 423 is mounted at the output end of the second transverse moving device 422. The second vacuum suction cylinder 424 is mounted at the output end of the second vertical moving device 423.

[0045] The second conveying component 41 conveys the skeleton, the second vacuum suction cylinder 424 holds the skeleton in place, and the second horizontal moving device 422 and the second vertical moving device 423 drive the second vacuum suction cylinder 424 to move horizontally and vertically, placing the skeleton above the housing of the first turntable mechanism 30.

[0046] The electromagnetic electrode plate loading and assembly mechanism 50 includes a third conveying component 51, a third feeding component 52, a third sliding component 53, and a third pressing component 54. The third feeding component 52 is located beside the third conveying component 51. The third feeding component 52 includes a third support frame 521, a third transverse moving device 522, a third vertical moving device 523, and a third clamping cylinder 524. The third transverse moving device 522 is mounted on the third support frame 521, the third vertical moving device 523 is mounted at the output end of the third transverse moving device 522, and the third clamping cylinder 524 is mounted at the output end of the third vertical moving device 523.

[0047] The third conveying component 51 conveys the electromagnetic pole plate, the third clamping cylinder 524 clamps the electromagnetic pole plate on the third conveying component 51, the third horizontal moving device 522 and the third vertical moving device 523 drive the third clamping cylinder 524 to move horizontally and vertically, placing the electromagnetic pole plate on the third sliding component 53, the third sliding component 53 transfers the electromagnetic pole plate to the third pressing component 54, and the third pressing component 54 places the electromagnetic pole plate above the frame of the first turntable mechanism 30, so that the housing, frame and electromagnetic pole plate are assembled into a single-phase stator.

[0048] The third conveying component 51, the third feeding component 52, the third sliding component 53, and the third pressing component 54 are used to automatically realize the conveying, feeding, transfer, and pressing of electromagnetic pole plates, which meets the position movement requirements during the assembly of electromagnetic pole plates and improves the pressing accuracy.

[0049] The first conveying assembly 21, the second conveying assembly 41, and the third conveying assembly 51 each include a motor and a transmission belt. The transmission belt is installed at the output end of the motor, and the motor drives the transmission belt to convey materials. The first lateral movement device 222, the first vertical movement device 223, the second lateral movement device 422, the second vertical movement device 423, the third lateral movement device 522, and the third vertical movement device 523 each include a drive cylinder and a slide. The slide is installed at the shaft end of the drive cylinder and serves as the output end of the drive cylinder.

[0050] The housing feeding mechanism 20, the first turntable mechanism 30, the frame feeding and assembly mechanism 40, and the electromagnetic pole plate feeding and assembly mechanism 50 each feed two materials at a time, placing two housings, two frames, and two electromagnetic pole plates sequentially on the first turntable mechanism 30, which facilitates the subsequent pressing of the two single-phase stators into a combined stator.

[0051] The third sliding assembly 53 includes a sliding drive cylinder 531 and a sliding material seat 532, with the sliding material seat 532 mounted on the shaft end of the sliding drive cylinder 531; the third pressing assembly 54 includes a pressing drive cylinder 541, a transverse cylinder 542, and a vacuum suction cylinder 55, with the transverse cylinder 542 mounted on the shaft end of the pressing drive cylinder 541 and the vacuum suction cylinder 55 mounted on the shaft end of the transverse cylinder 542, and the vacuum suction cylinder 55 corresponding to the sliding material seat 532.

[0052] The sliding drive cylinder 531 drives the sliding material seat 532 to move; the pressing drive cylinder 541 and the transverse movement cylinder 542 drive the vacuum suction cylinder 55 to lift and move laterally, assembling the electromagnetic electrode plate onto the frame.

[0053] The testing mechanism 60 includes a testing support frame 61, a lifting and moving cylinder 62, a pressure head 63, and a height sensor. The pressure head 63 is elastically mounted on the shaft end of the lifting and moving cylinder 62, and the height sensor is located beside the pressure head 63.

[0054] A compression spring is provided between the pressure head 63 and the shaft end of the lifting and moving cylinder 62. The lifting and moving cylinder 62 drives the pressure head 63 to press and fix it on the upper surface of the single-phase stator. The pressure head 63 continues to descend, and the compression spring is compressed. The height sensor determines the height of the single-phase stator based on the compression distance of the compression spring, and then determines whether the single-phase stator is assembled successfully.

[0055] The combined stator pressing mechanism 70 includes a pressing support 71, a vertical movement drive assembly 72, a horizontal movement drive assembly 73, a pressing drive cylinder 74, a guide shaft 75, and a rotary clamping cylinder 76. The vertical movement drive assembly 72 is mounted on the pressing support frame, the horizontal movement drive assembly 73 is mounted on the output end of the vertical movement drive assembly 72, the pressing drive cylinder 74 is mounted on the output end of the horizontal movement drive assembly 73, the guide shaft 75 is mounted on the shaft end of the pressing drive cylinder 74, and the rotary clamping cylinder 76 is mounted on the pressing support 71, with the rotary clamping cylinder 76 facing the guide shaft 75.

[0056] Both the vertical drive assembly 72 and the horizontal drive assembly 73 include a moving drive cylinder and a slider. The slider is mounted on the shaft end of the moving drive cylinder and serves as the output end of the moving drive cylinder. The rotary clamping cylinder 76 clamps the single-phase stator on the first turntable mechanism 30 and rotates it 180 degrees to meet the position requirements during assembly. The vertical drive assembly 72 and the horizontal drive assembly 73 drive the pressing drive cylinder 74 and the guide shaft 75 to move vertically and horizontally. The guide shaft 75 extends into the interior of the single-phase stator and moves to above another single-phase stator on the first turntable mechanism 30. The pressing drive cylinder 74 drives the guide shaft 75 to descend, pressing the two single-phase stators into a combined stator. The guide shaft 75 plays a guiding role during assembly, preventing positional deviation and improving assembly accuracy.

[0057] The defective product transfer mechanism 81 includes a defective product driving cylinder and a clamping cylinder. The clamping cylinder is mounted on the shaft end of the defective product driving cylinder. The clamping cylinder clamps the defective product. The defective product driving cylinder drives the clamping cylinder to move, thereby removing the defective product from the first turntable mechanism 30.

[0058] The combined stator transfer mechanism 80 includes a longitudinal transfer cylinder and a gripper cylinder. The gripper cylinder is mounted on the shaft end of the longitudinal transfer cylinder and transfers the combined stator on the first turntable mechanism 30 to the second turntable mechanism 31.

[0059] The bending mechanism 90 consists of two sets, which are distributed close to each other on the side of the second turntable mechanism 31. The purpose of using two sets of bending mechanisms 90 is to prevent the PIN from springing back after bending. By using two sets of bending mechanisms 90 to bend the PIN, the degree of PIN springback is reduced.

[0060] The bending mechanism 90 includes a pressing and straightening assembly 91 for pressing the stator and straightening the stator pins, and a bending drive assembly 92 for bending the stator pins, wherein:

[0061] The pressing and straightening assembly 91 is located above the bending drive assembly 92; the pressing and straightening assembly 91 has a pressure plate 915 and a shift fork (not shown in the figure), and the bending drive assembly 92 has a feeding seat 926 for placing PIN pins; the pressure plate 915 can be lowered to press the upper surface of the stator, the PIN pins of the stator are located in the feeding seat 926, the shift fork can be moved to straighten the PIN pins in the feeding seat 926, and the feeding seat 926 can be rotated to bend the PIN pins.

[0062] The pressure plate 915 of the pressing and straightening assembly 91 descends, pressing the upper surface of the stator body (excluding the PIN pin portion) against the pressure plate 915. At this time, the PIN pin of the stator is located in the feeding seat 926. The shift fork descends to the feeding seat 926 position, and the shift fork holds the PIN pin in the feeding seat 926 and moves longitudinally to straighten the PIN pin from the root to the tail. After straightening is completed, the shift fork moves to make room for the feeding seat 926 to rotate. The rotation of the feeding seat 926 drives the PIN pin to rotate by an angle, causing the PIN pin to bend from the root.

[0063] The straightening and bending of PIN pins are automated by using a pressure-fixing straightening component 91 and a bending drive component 92, reducing labor costs. A pressure plate 915 is used to press the stator to prevent the stator from shifting position during bending, improving bending accuracy and reducing the defect rate. A shift fork is used to straighten the PIN pins, preventing them from being crooked or misaligned. A feeding seat 926 is used to place the PIN pins, and the rotation of the feeding seat 926 causes the PIN pins to bend from the root, improving bending accuracy.

[0064] The feeding seat 926 is provided with a receiving groove 9261 for accommodating PIN pins, and the PIN pins are located longitudinally in the receiving groove 9261; the pressure plate 915 presses the fixing element, and the shift fork is movably located in the receiving groove 9261. The feeding seat 926 rotates to drive the PIN pins in the receiving groove 9261 to bend from the root.

[0065] The PIN is located in the receiving groove 9261, which protects the PIN and prevents bending of other parts when the PIN is bent from the root, thus improving the bending accuracy.

[0066] The pressure straightening assembly 91 also includes a bracket 911, a vertical drive device, a lifting drive device, and a longitudinal drive device. The vertical drive device is vertically mounted on the bracket 911, and the pressure plate 915 is mounted on the output end of the vertical drive device. The lifting drive device is mounted on the output end of the vertical drive device, the longitudinal drive device is mounted on the output end of the lifting drive device, and the shift fork is mounted on the output end of the longitudinal drive device.

[0067] The vertical drive device drives the pressure plate 915 and the shift fork to descend, and the pressure plate 915 presses against the upper surface of the fixed sub-body; the lifting drive device drives the shift fork to continue to descend, lowering the shift fork into the receiving groove 9261, and the shift fork inserts the PIN pin located in the receiving groove 9261. The longitudinal drive device drives the shift fork to move longitudinally, and the shift fork straightens the PIN pin from the root to the tail. After straightening, the longitudinal drive device drives the shift fork to move longitudinally, and the lifting drive device drives the shift fork to rise, so that the shift fork moves away from the material feeding seat 926 position, so as to make room for the rotation of the material feeding seat 926; the overall structure is compact and occupies little space.

[0068] The vertical drive device includes a vertical drive cylinder 9121 and a vertical slide block 9122. The vertical drive cylinder 9121 is mounted on a bracket 911, and the vertical slide block 9122 is mounted on the shaft end of the vertical drive cylinder 9121. The pressure plate 915 is mounted on the vertical slide block 9122. The vertical drive cylinder 9121 drives the vertical slide block 9122 to move vertically, and the pressure plate 915 descends as the vertical slide block 9122 descends, pressing the upper surface of the stator body.

[0069] The bracket 911 is provided with a buffer limiter 9111 for limiting the descent position of the vertical slide 9122. The vertical slide 9122 is provided with an abutment block 91221, which can descend and abut against the upper end of the buffer limiter 9111. The upper end of the buffer limiter 9111 is elastic. The buffer limiter 9111 limits the maximum descent position of the vertical slide 9122. The elastic upper end of the buffer limiter 9111 prevents rigid collision when the abutment block 91221 abuts against the buffer limiter 9111.

[0070] The lifting drive device includes a lifting drive cylinder 9131 and a lifting slide 9132. The lifting drive cylinder 9131 is mounted on a vertical slide 9122, and the lifting slide 9132 is mounted on the shaft end of the lifting drive cylinder 9131. The longitudinal drive device includes a longitudinal drive cylinder 9141 and a longitudinal slide 9142. The longitudinal drive cylinder 9141 is mounted on the lifting slide 9132, and the longitudinal slide 9142 is mounted on the shaft end of the longitudinal drive cylinder 9141. The shift fork is vertically mounted on the longitudinal slide 9142.

[0071] The lifting drive cylinder 9131 drives the lifting slide 9132 to rise and fall, the longitudinal drive cylinder 9141 drives the longitudinal slide 9142 to move longitudinally, and the longitudinal movement of the shift fork straightens the PIN pin from the root to the tail.

[0072] The bending drive assembly 92 also includes a support 921, a rotary drive motor 923, and a rotating shaft 924. The rotary drive motor 923 is mounted on the support 921, the rotating shaft 924 is mounted on the shaft end of the rotary drive motor 923, and the feeding seat 926 is fastened to the rotating shaft 924. The rotary drive motor 923 drives the rotating shaft 924 to rotate, and the rotation of the rotating shaft 924 drives the feeding seat 926 to rotate. The rotation of the feeding seat 926 drives the PIN pin to bend from the root.

[0073] The support 921 is equipped with an optical fiber sensor 922, which has a groove 9221. A circular baffle 925 is fastened to the front end of the rotating shaft 924. The circular baffle 925 is rotatably located in the groove 9221 and has an opening 9251 that rotatably corresponds to the groove 9221.

[0074] The rotation of the shaft 924 drives the circular baffle 925 to rotate. When the opening 9251 rotates to the groove 9221, the fiber optic sensor 922 senses that the rotation position is in place, and the rotation drive motor 923 stops rotating, which improves the bending accuracy. During bending, since the PIN pin is prone to springback, if the PIN pin is bent at 90 degrees, the rotation degree is set to be greater than 90 degrees to facilitate compensation for the springback of the PIN pin.

[0075] After bending, the discharge mechanism 100 discharges the combined stator on the second turntable mechanism 31. The discharge mechanism 100 includes a discharge component 110 and a discharge conveying component 120. The discharge component 110 includes a discharge drive cylinder and a material-fixing cylinder, with the material-fixing cylinder mounted on the shaft end of the discharge drive cylinder. The discharge conveying component 120 includes a conveyor drive motor and a conveyor belt, with the conveyor belt mounted on the output end of the conveyor drive motor. The material-fixing cylinder clamps the combined stator on the second turntable mechanism, and the discharge drive cylinder drives the material-fixing cylinder to move, transferring the combined stator located on the second turntable mechanism to the conveyor belt. The conveyor drive motor drives the conveyor belt to discharge the combined stator.

[0076] The assembly method of this stator assembly machine includes the following steps:

[0077] First, the housing feeding mechanism feeds the housing onto the first turntable mechanism;

[0078] Second, when the first turntable mechanism drives the machine housing to move to the side of the skeleton feeding and assembly mechanism, the skeleton feeding and assembly mechanism assembles the skeleton into the machine housing.

[0079] Third, the first turntable mechanism drives the housing frame to move to the side of the electromagnetic pole plate loading and assembly mechanism, and the electromagnetic pole plate loading and assembly mechanism assembles the electromagnetic pole plate onto the housing frame to form a single-phase stator.

[0080] Fourth, the first turntable mechanism drives the single-phase stator to move to the side of the combined stator pressing mechanism, and the combined stator pressing mechanism presses one single-phase stator into another unidirectional stator to form a combined stator;

[0081] Fifth, the combined stator transfer mechanism transfers the combined stator from the first turntable mechanism to the second turntable mechanism;

[0082] Sixth, the second turntable mechanism drives the combined stator to move to the side of the bending mechanism, and the bending mechanism bends the pins of the combined stator.

[0083] The key design feature of this invention is that by employing a housing feeding mechanism, a first turntable mechanism, a skeleton feeding and assembly mechanism, an electromagnetic pole plate feeding and assembly mechanism, a combined stator pressing mechanism, a combined stator transfer mechanism, a second turntable mechanism, and a bending mechanism, the assembly of the housing, the movement of the housing, the feeding and assembly of the skeleton, the feeding and assembly of the electromagnetic pole plates, the pressing, transfer, movement, and bending of the combined stator are automated, thereby improving assembly efficiency and reducing labor costs. Furthermore, by employing a pressing and straightening assembly and a bending drive assembly, the straightening and bending of the PIN pins are automated, further reducing labor costs. Finally, by using a pressure plate to press the stator, the stator's position is prevented from shifting during bending, improving bending accuracy and reducing the defect rate.

[0084] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A stator assembly machine, characterized in that; The system includes a frame, a housing feeding mechanism for feeding the housing, a first turntable mechanism for moving the material, a frame feeding and assembly mechanism for feeding the skeleton and assembling it into the housing, an electromagnetic pole plate feeding and assembly mechanism for feeding the electromagnetic pole plates and assembling them onto the housing skeleton to form a single-phase stator, a combined stator pressing mechanism for pressing one single-phase stator into another single-phase stator to form a combined stator, a second turntable mechanism for moving the combined stator, a combined stator transfer mechanism for transferring the combined stator from the first turntable mechanism to the second turntable mechanism, and a bending mechanism for bending the pins of the combined stator. The frame is equipped with a worktable for mounting the first and second turntable mechanisms. The housing feeding mechanism, skeleton feeding and assembly mechanism, electromagnetic pole plate feeding and assembly mechanism, and combined stator pressing mechanism are sequentially distributed along the rotation direction of the first turntable. The combined stator transfer mechanism is located between the first and second turntable mechanisms. The bending mechanism is located beside the second turntable mechanism. The stator assembly machine also includes a detection mechanism for detecting whether the electromagnetic pole plates are assembled in place, a defective product transfer mechanism for transferring unqualified assembled stators, and a discharge mechanism for discharging assembled stators. The detection mechanism is located between the electromagnetic pole plate loading and assembly mechanism and the assembled stator pressing mechanism. The defective product transfer mechanism is located next to the first turntable mechanism, and the discharge mechanism is located next to the second turntable mechanism. The bending mechanism includes a pressing and straightening assembly for pressing the stator and straightening the stator's pins, and a bending drive assembly for bending the stator's pins. The pressing and straightening assembly is located above the bending drive assembly. The pressing and straightening assembly has a pressure plate and a shift fork, and the bending drive assembly has a feeding seat for placing the pins. The feeding seat is provided with a receiving groove for accommodating the pins, and the pins are longitudinally located in the receiving groove. The pressure plate presses the stator, the shift fork is movably located in the receiving groove, and the feeding seat rotates to drive the pins in the receiving groove to bend from the root.

2. The stator assembly machine according to claim 1, characterized in that; The combined stator pressing mechanism includes a pressing support, a vertical movement drive assembly, a horizontal movement drive assembly, a pressing drive cylinder, a guide shaft, and a rotary clamping cylinder. The vertical movement drive assembly is mounted on the pressing support, the horizontal movement drive assembly is mounted at the output end of the vertical movement drive assembly, the pressing drive cylinder is mounted at the output end of the horizontal movement drive assembly, the guide shaft is mounted at the shaft end of the pressing drive cylinder, and the rotary clamping cylinder is mounted on the pressing support with the rotary clamping cylinder facing the guide shaft.

3. The stator assembly machine according to claim 1, characterized in that; The housing loading mechanism includes a first conveying component and a first loading component. The first loading component is located beside the first conveying component. The first loading component includes a first support frame, a first horizontal moving device, a first vertical moving device, and a first clamping cylinder. The first horizontal moving device is mounted on the first support frame. The first vertical moving device is mounted at the output end of the first horizontal moving device. The first clamping cylinder is mounted at the output end of the first vertical moving device.

4. The stator assembly machine according to claim 1, characterized in that; The skeleton feeding and assembly mechanism includes a second conveying component and a second feeding component. The second feeding component is located next to the second conveying component. The second feeding component includes a second support frame, a second horizontal moving device, a second vertical moving device, and a second vacuum suction cylinder. The second horizontal moving device is installed on the second support frame, the second vertical moving device is installed at the output end of the second horizontal moving device, and the second vacuum suction cylinder is installed at the output end of the second vertical moving device.

5. The stator assembly machine according to claim 1, characterized in that; The electromagnetic electrode plate loading and assembly mechanism includes a third conveying component, a third feeding component, a third sliding component, and a third pressing component. The third feeding component is located next to the third conveying component and includes a third support frame, a third transverse moving device, a third vertical moving device, and a third clamping cylinder. The third transverse moving device is mounted on the third support frame, the third vertical moving device is mounted at the output end of the third transverse moving device, and the third clamping cylinder is mounted at the output end of the third vertical moving device.

6. The stator assembly machine according to claim 5, characterized in that; The third sliding assembly includes a sliding drive cylinder and a sliding material seat, the sliding material seat being mounted on the shaft end of the sliding drive cylinder; the third pressing assembly includes a pressing drive cylinder, a lateral movement cylinder and a vacuum suction cylinder, the lateral movement cylinder being mounted on the shaft end of the pressing drive cylinder and the vacuum suction cylinder being mounted on the shaft end of the lateral movement cylinder, the vacuum suction cylinder corresponding to the sliding material seat.

7. The stator assembly machine according to claim 1, characterized in that; The detection mechanism includes a detection support frame, a lifting and moving cylinder, a pressure head, and a height sensor. The pressure head is elastically mounted on the shaft end of the lifting and moving cylinder, and the height sensor is located beside the pressure head.

8. An assembly method for a stator assembly machine as described in any one of claims 1-7, characterized in that: Includes the following steps: First, the housing feeding mechanism feeds the housing onto the first turntable mechanism; Second, when the first turntable mechanism drives the machine housing to move to the side of the skeleton feeding and assembly mechanism, the skeleton feeding and assembly mechanism assembles the skeleton into the machine housing. Third, the first turntable mechanism drives the housing frame to move to the side of the electromagnetic pole plate loading and assembly mechanism, and the electromagnetic pole plate loading and assembly mechanism assembles the electromagnetic pole plate onto the housing frame to form a single-phase stator. Fourth, the first turntable mechanism drives the single-phase stator to move to the side of the combined stator pressing mechanism, and the combined stator pressing mechanism presses one single-phase stator into another unidirectional stator to form a combined stator; Fifth, the combined stator transfer mechanism transfers the combined stator from the first turntable mechanism to the second turntable mechanism; Sixth, the second turntable mechanism drives the combined stator to move to the side of the bending mechanism, and the bending mechanism bends the pins of the combined stator.

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