Automatic assembly machine for motor parts

Abstract

The present invention relates to an automatic assembly machine for motor components, including a pulley feeding mechanism, a bearing insertion mechanism, a small shaft insertion mechanism, and a fixed frame insertion mechanism. The pulley feeding mechanism includes a pulley vibration plate, a first material channel, and a second material channel. The pulley on the first material channel is lifted to the second material channel by a lifting material distribution component. The second material channel is sequentially provided with a first station, a second station, and a third station. The first station, the second station, and the third station are respectively connected to the bearing insertion mechanism, the small shaft insertion mechanism, and the fixed frame insertion mechanism. At the first station, the bearing insertion mechanism assembles the bearing on the pulley, at the second station, the small shaft insertion mechanism assembles the small shaft on the pulley and the bearing assembly, and at the third station, the fixed frame insertion mechanism assembles the fixed frame on the pulley, the bearing, and the small shaft assembly. The fixed frame, the small shaft, and the pulley of the present invention adopt a vibration plate for material distribution and feeding, and the bearing adopts a rotating disk and a bearing barrel for material distribution and feeding, so as to realize full-automatic assembly operation with high production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of motor assembly, and in particular to an automatic assembly machine for motor components. Background Art

[0002] During the production of the motor, the pulley connected to the motor drive wheel needs to be installed on the fixed frame through the small shaft and bearing, where the bearing is installed in the pulley, one end of the small shaft should be inserted into the shaft hole of the bearing, and the other end should be inserted into the fixed frame. During the assembly process of the pulley, bearing, small shaft, and fixed frame, the pulley, bearing, and small shaft are all relatively regular in shape, and the three are installed coaxially. Therefore, it is particularly important to ensure that the pulley remains stable during the installation process. The fixed frame is irregular in shape, and the fixed frame is easy to tilt during the process of pressing it onto the small shaft, thereby affecting the quality of the assembly. For this reason, it is necessary to design a fully automatic assembly machine that can quickly assemble the four components of the pulley, bearing, small shaft, and fixed frame together. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides an automatic assembly machine for motor components.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: an automatic assembly machine for motor parts, including a pulley feeding mechanism, a bearing insertion mechanism, a small shaft insertion mechanism, and a fixed frame insertion mechanism, the pulley feeding mechanism includes a pulley vibrating plate, a first material channel, and a second material channel arranged in sequence, the first material channel and the second material channel have a certain height difference, a lifting and dividing component is arranged between the first material channel and the second material channel, the pulley on the first material channel is lifted to the second material channel by the lifting and dividing component, the second material channel is sequentially provided with a first station, a second station and a third station, and the second material channel is provided with a lifting and dividing component. A positioning device for clamping and positioning the pulley and a stepping feeding device are provided, the stepping feeding device moves the pulley on the second material channel in a stepping manner to drive the pulley to pass through the first station, the second station and the third station in sequence; the first station, the second station and the third station are respectively connected to the bearing mechanism, the small shaft mechanism and the fixed frame mechanism, at the first station, the bearing mechanism assembles the bearing on the pulley, at the second station, the small shaft mechanism assembles the small shaft on the pulley and the bearing assembly, and at the third station, the fixed frame mechanism assembles the fixed frame on the pulley, the bearing and the small shaft assembly.

[0005] In the above technical solution, the lifting and material distribution assembly includes a lifting cylinder and a lifting plate. The lifting plate is lifted and lowered back and forth between the first material channel and the second material channel by the lifting cylinder. The lifting plate is provided with a material trough for clamping a pulley. When the lifting plate is at the lowest point, the material trough is flush with the first material channel. When the lifting plate is at the highest point, the material trough is flush with the second material channel. The outer side wall of the lifting plate near the second material channel is provided with an outer step, and a limiting step is provided on the end face of the second material channel. When the lifting plate is at the highest point, the outer step abuts against the limiting step.

[0006] In the above technical scheme, the positioning device includes a side positioning assembly and a lower positioning assembly. The side positioning assemblies are arranged at the first station, the second station and the third station of the second material channel. The side positioning assembly includes a material clamp and a side spring. The material clamp is rotatably arranged on the inner side wall of the second material channel through an axle pin. The side spring is arranged between the material clamp and the inner side wall of the second material channel and provides the material clamp with a clamping force for clamping the pulley; the lower positioning assembly includes a positioning column, a sliding pad and a positioning cylinder. The second material channel is respectively provided with mounting holes at the second station and the third station. The positioning column is inserted in the mounting hole. The positioning column sleeve is provided with a reset spring. The sliding pad is driven and connected to the positioning cylinder through a connecting plate and is arranged below the second material channel. The end of the sliding pad is provided with an inclined surface connected to the lower end of the positioning column. The positioning column can be pushed into the pulley on the second material channel through the inclined surface of the sliding pad.

[0007] In the above technical scheme, the step feeding device includes an advance and retreat cylinder, a movable seat, a material transfer cylinder, a guide rail, and a shift fork. The shift fork is provided with a recessed position contacting the pulley. A plurality of shift forks are arranged on the guide rail at intervals. A slider cooperating with the guide rail is fixed on the movable seat. The movable seat is transmission-connected with the driving end of the advance and retreat cylinder. The material transfer cylinder is installed on the movable seat. The guide rail is transmission-connected with the driving end of the material transfer cylinder. The material transfer cylinder drives the guide rail and the shift fork to move relative to the movable seat. The advance and retreat cylinder drives the movable seat and the guide rail to move. The driving direction of the advance and retreat cylinder is perpendicular to the driving direction of the material transfer cylinder.

[0008] In the above technical scheme, the bearing insertion mechanism includes a bearing seat device and a bearing pressure device arranged on one side of the bearing seat device, the bearing pressure device is located at the first workstation, the bearing pressure device includes a bearing pressure cylinder and a bearing pressure head, and the bearing pressure cylinder drives the bearing pressure head to press the bearing on the first workstation into the pulley; the bearing seat device includes a bearing seat bottom plate, a turntable, a bearing barrel, a bearing push plate, and a downward pressure cylinder, the turntable is rotatably arranged on the bearing seat bottom plate, at least two bearing barrels are arranged on the turntable, the bearing push plate moves between the dividing port below the turntable and the bearing pressure head of the bearing pressure device, the turntable drives at least two bearing barrels to switch at the dividing port, and the bearing in the bearing barrel is pressed into the dividing port by the downward pressure cylinder and pushed to the first workstation through the bearing push plate.

[0009] In the above technical scheme, the small shaft feeding mechanism includes a small shaft feeding device and a small shaft pressing device, the small shaft pressing device is located at the second work station, the small shaft pressing device includes a small shaft pressing cylinder and a small shaft pressing head, the small shaft pressing cylinder drives the small shaft pressing head to press the small shaft on the second work station into the pulley and bearing assembly, the small shaft feeding device includes a small shaft vibration plate, a shaft clamp, a small shaft pushing cylinder, a small shaft seat, and a cover plate, the small shaft vibration plate transports the small shaft to the small shaft seat and will be clamped by the shaft clamp, and the small shaft pushing cylinder drives the shaft clamp to move back and forth between the small shaft seat and the second work station along the guide groove between the small shaft seat and the cover plate.

[0010] In the above technical scheme, the input fixed frame mechanism includes a pressing fixed frame device and a sending fixed frame device, the pressing fixed frame device is located at the third workstation, the pressing fixed frame device includes a transfer seat, a pressure rod, a material picking needle, a pressing fixed frame cylinder, and a support plate, the transfer seat is provided with a feeding port, the support plate is movably arranged on the transfer seat and inserted into the feeding port, the support plate opens and closes the feeding port through the support cylinder, the sending fixed frame device includes a fixed frame vibration plate and a fixed frame material channel, the fixed frame vibration plate transports the fixed frame to the support plate at the feeding port through the fixed frame material channel, the pressing fixed frame cylinder is liftable above the support plate through the pressure rod and presses the fixed frame at the feeding port into the pulley, bearing and small shaft assembly, the material picking needle is coaxially arranged in the pressure rod, and the material picking needle is liftable in the pressure rod by pneumatic means to position the fixed frame on the support plate.

[0011] In the above technical scheme, it also includes a discharging component, which includes a discharging chute, a dividing plate, a defective product box, and a sorting cylinder. The discharging chute is arranged at the end of the second material channel, and a sorting port is arranged in the middle of the discharging chute. The dividing plate is rotatably arranged at the sorting port through the sorting cylinder, and the defective product box is arranged below the discharging chute and below the sorting port.

[0012] In the above technical solution, it also includes a frame, the pulley feeding mechanism, the bearing entry mechanism, the small shaft entry mechanism, and the fixed frame entry mechanism are arranged on the frame, the frame is provided with a bracket, the bearing pressing cylinder, the small shaft pressing cylinder, and the fixed frame pressing cylinder are fixed on the bracket, and the second material channel is passed under the bracket.

[0013] The beneficial effects of the present invention are that the present invention has a reasonable structure, a novel design and strong practicality. The fixed frame, the small shaft and the pulley are fed by a vibration plate, and the bearings are fed by a turntable and a bearing barrel. The bearings, the small shaft and the fixed frame are pressed onto the pulley in the first, second and third stations on the second material channel respectively, to realize fully automatic assembly operation with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural diagram of the pulley feeding mechanism.

[0016] Figure 3 It is a structural schematic diagram of the lifting and dividing component and the positioning device.

[0017] Figure 4 It is a structural schematic diagram of the lower positioning component.

[0018] Figure 5 It is a structural schematic diagram of a stepping feeding device.

[0019] Figure 6 It is a structural diagram of the bearing mechanism.

[0020] Figure 7 It is a schematic diagram of the planar structure of the bearing seat device.

[0021] Figure 8 It is a structural diagram of the small shaft mechanism.

[0022] Fig. 9 It is a structural diagram of the shaft clamp.

[0023] Fig.10 It is a structural schematic diagram of the fixed frame mechanism.

[0024] Fig.11 It is a structural schematic diagram of a pressing and fixing frame device.

[0025] Fig.12 It is a schematic diagram of the structure of the pressure rod.

[0026] Fig.13 It is a structural schematic diagram of the discharge component.

[0027] Fig.14It is a schematic diagram of the assembly structure of the pulley, bearing, small shaft and fixed frame.

[0028] In the figure: 1, belt pulley feeding mechanism; 11, belt pulley vibrating plate; 12, first material channel; 13, second material channel; 14, first station; 15, second station; 16, third station; 17, limit step; 18, mounting hole;

[0029] 2. Lifting material distribution assembly; 21. Lifting cylinder; 22. Lifting plate; 23. Material trough; 24. External step;

[0030] 3. Positioning device; 31. Side positioning assembly; 32. Material clamp; 33. Side spring; 34. Axis pin; 35. Lower positioning assembly; 36. Positioning column; 37. Sliding pad; 371. Inclined surface; 38. Positioning cylinder; 39. Return spring;

[0031] 4. Stepping feeding device; 41. Advance and retreat cylinder; 42. Moving seat; 43. Material transfer cylinder; 44. Guide rail; 45. Fork; 46. Concave position; 47. Sliding block; 48. L-shaped fixing block;

[0032] 5. Bearing insertion mechanism; 51. Bearing pressing device; 52. Bearing pressing cylinder; 53. Bearing pressing head; 54. Bearing seat device; 55. Bearing seat bottom plate; 56. Turntable; 561. Ratchet slider; 562. Tooth; 563. Ratchet; 57. Bearing barrel; 58. Bearing push plate; 581. Material distribution port; 582. Clamp; 583. Compression spring; 584. First clamp; 59. Pressing cylinder;

[0033] 6. Small shaft insertion mechanism; 61. Small shaft pressing device; 62. Small shaft pressing cylinder; 63. Small shaft pressing head; 64. Small shaft delivery device; 65. Small shaft vibration plate; 66. Shaft clamp; 661. Guide groove; 662. First clamp block; 663. Second clamp block; 664. Tension spring; 665. Second clamping mouth; 67. Small shaft pushing cylinder; 68. Small shaft seat; 69. Cover plate;

[0034] 7. Mechanism for feeding fixed frame; 71. Device for feeding fixed frame; 72. Vibrating plate of fixed frame; 73. Material channel of fixed frame; 74. Device for pressing fixed frame; 75. Transfer seat; 751. Cylinder for supporting material; 76. Pressing rod; 77. Material taking needle; 78. Cylinder for pressing fixed frame; 79. Supporting plate; 701. Material discharge port; 702. Positioning groove; 703. Avoiding hole; 704. Baffle; 705. Sliding bore; 706. Material taking part; 707. Piston part; 708. Sealing ring; 709. Material taking spring;

[0035] 8. Discharging assembly; 81. Discharging slide; 82. Discharging plate; 83. Defective product box; 84. Sorting cylinder; 85. Sorting port;

[0036] 9. Frame; 91. Bracket; 92. Electronic ruler; 93. Guide sleeve seat;

[0037] 101. Pulley; 102. Bearing; 103. Small shaft; 104. Fixed bracket. DETAILED DESCRIPTION

[0038] Specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0039] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed by the present invention, some changes such as design, manufacturing or production based on the technical contents disclosed by the present invention are only conventional technical means, and should not be understood as insufficient contents disclosed by the present invention.

[0040] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present invention may be combined with other embodiments without conflict.

[0041] Unless otherwise defined, the technical terms or scientific terms involved in the present invention shall be the common meanings understood by people with ordinary skills in the technical field to which the present invention belongs. The words "one", "an", "the" and the like involved in the present invention do not indicate a quantity limitation and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in the present invention are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in the present invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in the present invention refers to greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" may indicate: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present invention are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0042] like Figure 1-14 As shown, an automatic assembly machine for motor components includes a pulley feeding mechanism 1, a bearing insertion mechanism 5, a small shaft insertion mechanism 6, and a fixed frame insertion mechanism 7. The pulley feeding mechanism 1 includes a pulley vibrating plate 11, a first material channel 12, and a second material channel 13 which are arranged in sequence. The first material channel 12 and the second material channel 13 have a certain height difference. A lifting and dividing component 2 is arranged between the first material channel 12 and the second material channel 13. The pulley 101 on the first material channel 12 is lifted to the second material channel 13 by the lifting and dividing component 2. The second material channel 13 is sequentially provided with a first station 14, a second station 15, and a third station 16. The second material channel 13 is provided with a positioning device 3 for clamping and positioning the pulley 101 and a stepping feeding device. Device 4, the stepping feeding device 4 moves the pulley 101 on the second material channel 13 in a stepping manner to drive the pulley 101 to pass through the first station 14, the second station 15 and the third station 16 in sequence; the first station 14, the second station 15 and the third station 16 are respectively connected to the bearing mechanism 5, the small shaft mechanism 6 and the fixed frame mechanism 7, in the first station 14, the bearing mechanism 5 is entered to assemble the bearing 102 on the pulley 101, in the second station 15, the small shaft mechanism 6 is entered to assemble the small shaft 103 on the assembly of the pulley 101 and the bearing 102, and in the third station 16, the fixed frame mechanism 7 is entered to assemble the fixed frame 104 on the assembly of the pulley 101, the bearing 102 and the small shaft 103.

[0043] like Figure 2-3As shown, the lifting and distributing component 2 includes a lifting cylinder 21 and a lifting plate 22. The lifting plate 22 is lifted and lowered back and forth between the first material channel 12 and the second material channel 13 by the lifting cylinder 21. The lifting plate 22 is provided with a material trough 23 which is clamped with the pulley 101. When the lifting plate 22 is at the lowest point, the material trough 23 is flush with the first material channel 12. When the lifting plate 22 is at the highest point, the material trough 23 is flush with the second material channel 13. The outer wall of the lifting plate 22 near the second material channel 13 is provided with an outer step 24, and a limiting step 17 is provided on the end face of the second material channel 13. When the lifting plate 22 is at the highest point, the outer step 24 abuts against the limiting step 17. The pulley vibrating plate 11 vibrates and transports the pulley 101 to the first material channel 12, and the pulley 101 gradually moves along the first material channel 12 to the lifting plate 22. When the lifting plate 22 is at the lowest point, the front pulley 101 on the first material channel 12 can be pushed onto the lifting plate 22 by the rear pulley 101, and then the lifting plate 22 is lifted to the height of the second material channel 13 by the lifting cylinder 21, and moved to the second material channel 13 through the stepping feeding device 4 on the second material channel 13, thereby completing the lifting of the pulley 101 between the first material channel 12 and the second material channel 13.

[0044] like Figure 3-4 As shown, the positioning device 3 includes a side positioning assembly 31 and a lower positioning assembly 35. The side positioning assembly 31 is arranged at the first station 14, the second station 15 and the third station 16 of the second material channel 13. The side positioning assembly 31 includes a material clamp 32 and a side spring 33. The material clamp 32 is rotatably arranged on the inner side wall of the second material channel 13 through an axle pin 34. The side spring 33 is arranged between the material clamp 32 and the inner side wall of the second material channel 13 and provides the material clamp 32 with a clamping force to clamp the pulley 101; the lower positioning assembly 35 includes a positioning column 3 6. Sliding pad 37, positioning cylinder 38, the second material channel 13 is respectively provided with mounting holes 18 at the second station 15 and the third station 16, the positioning column 36 is inserted in the mounting hole 18, the positioning column 36 is sleeved with a return spring 39, the sliding pad 37 is drivingly connected to the positioning cylinder 38 through a connecting plate and is arranged under the second material channel 13, and the end of the sliding pad 37 is provided with an inclined surface 371 connected to the lower end of the positioning column 36, and the positioning column 36 can be pushed by the inclined surface 371 of the sliding pad 37 to be inserted into the pulley 101 on the second material channel 13.

[0045] The pulley 101 on the second material channel 13 is moved by the stepping feeding device 4, and the pulley 101 moves one, two, three, and one position respectively from the lifting plate 22 to the first station 14, from the first station 14 to the second station 15, from the second station 15 to the third station 16, and from the third station 16 to the discharge. The pulley 101 moves on the second material channel 13 in a stepping manner, and at the same time, the pushing force of the stepping feeding device 4 is greater than the clamping force of the material clamp 32. When the pulley 101 is assembled at the first, second and third stations, the stepping feeding device 4 does not move to ensure that the pulley 101 remains stable. The material clamp 32 of the side positioning component 31 is used to position the pulley 101 on the second material channel 13 to ensure that the pulley 101 will not move during the assembly process with the bearing 102, the small shaft 103 and the fixed frame 104. The pulley 101 and the bearing 102 are fixed by the lower positioning component 35 to ensure that the pressing process of the bearing 102 and the small shaft 103, and the small shaft 103 and the fixed frame 104 is stable, thereby improving the accuracy and quality of the pressing.

[0046] like Figure 5 As shown, the stepping feeding device 4 is arranged in parallel on one side of the second material channel 13, and the stepping feeding device 4 includes an advance and retreat cylinder 41, a moving seat 42, a material transfer cylinder 43, a guide rail 44, and a shift fork 45. The shift fork 45 is provided with a recess 46 in contact with the pulley 101, and six shift forks 45 are arranged on the guide rail 44 at intervals. A slider 47 cooperating with the guide rail 44 is fixed on the moving seat 42. The moving seat 42 is transmission-connected with the driving end of the advance and retreat cylinder 41, and the material transfer cylinder 43 is installed on the moving seat 42 through an L-shaped fixing block 48. The guide rail 44 is transmission-connected with the driving end of the material transfer cylinder 43. The material transfer cylinder 43 drives the guide rail 44 and the shift fork 45 to move relative to the moving seat 42, and the advance and retreat cylinder 41 drives the moving seat 42 and the guide rail 44 to move. The driving direction of the advance and retreat cylinder 41 is perpendicular to the driving direction of the material transfer cylinder 43.

[0047] The specific action process of the stepping feeding device 4 is as follows: when it is necessary to move the pulley 101 on the second material channel 13, the advance and retreat cylinder 41 drives the moving seat 42 to move toward the second material channel 13, so that the recess 46 of the shift fork 45 contacts the pulley 101, and then the material shifting cylinder 43 pushes the guide rail 44 to move one position away from the first material channel 12, so that the shift fork 45 shifts the pulley 101 to move one position, and then the advance and retreat cylinder 41 drives the moving seat 42 to retreat, and the material shifting cylinder 43 drives the guide rail 44 to retreat, completing the movement of the pulley 101 to one position.

[0048] like Figure 6-7As shown, the bearing mechanism 5 includes a bearing seat device 54, a bearing pressing device 51 arranged on one side of the bearing seat device 54, the bearing pressing device 51 is located on the first station 14, and the bearing pressing device 51 includes a bearing pressing cylinder 52 and a bearing pressing head 53. The bearing pressing cylinder 52 drives the bearing pressing head 53 to press the bearing 102 on the first station 14 into the pulley 101; the bearing seat device 54 includes a bearing seat bottom plate 55, a rotating disk 56, a bearing barrel 57, a bearing push plate 58, a lower pressure air cylinder 52, and a lower pressure air cylinder 53. Cylinder 59, turntable 56 are rotatably arranged on the bearing seat bottom plate 55, ten bearing barrels 57 are arranged on the turntable 56, and the bearing push plate 58 moves between the material distribution port 581 below the turntable 56 and the bearing pressure head 53 of the bearing pressing device 51. The turntable 56 drives the ten bearing barrels 57 to switch at the material distribution port 581, and the bearing 102 in the bearing barrel 57 is pressed into the material distribution port 581 by the downward pressure cylinder 59 and pushed to the first station 14 by the bearing push plate 58. A clamping plate 582 is arranged on the bearing push plate 58, and a first clamping port 584 is formed between the bearing push plate 58 and the clamping plate 582 to provide a clamping force through a compression spring 583, and the bearing 102 at the material distribution port 581 is clamped by the first clamping port 584.

[0049] The bearing seat device 54 rotates the turntable 56 by driving the ratchet slider 561 and the ratchet 563 to act on the teeth 562 on the turntable 56. The cylinder pushing the turntable 56 can drive the turntable 56 to rotate one bearing barrel 57 position in one action, and the turntable 56 can be quickly rotated to the right position. After the bearing barrel 57 rotates to the right position, the bearing 102 in the bearing barrel 57 is pressed into the material distribution port 581 by the downward pressure cylinder 59 to wait for being clamped by the bearing push plate 58, and then transported to the lower part of the bearing pressure head 53 of the first station 14, and the bearing pressure cylinder 52 drives the bearing pressure head 53 to coaxially press the bearing 102 into the pulley 101 clamped by the material clamp 32 on the first station 14.

[0050] The turntable 56 can be used to rotate and switch multiple bearing barrels 57 to ensure that the bearings 102 can be continuously loaded. The bearings 102 are placed in the bearing barrels 57 in a stacked manner to reduce the chance of the bearings 102 being contaminated with dust and ensure the cleanliness of the bearings 102.

[0051] like Figure 8-9As shown, the small shaft feeding mechanism 6 includes a small shaft feeding device 64 and a small shaft pressing device 61, the small shaft pressing device 61 is located at the second work station 15, the small shaft pressing device 61 includes a small shaft pressing cylinder 62 and a small shaft pressing head 63, the small shaft pressing cylinder 62 drives the small shaft pressing head 63 to press the small shaft 103 on the second work station 15 into the pulley 101 and the bearing 102 assembly, the small shaft feeding device 64 includes a small shaft vibration plate 65, a shaft clamp 66, a small shaft pushing cylinder 67, a small shaft seat 68, and a cover plate 69, the small shaft vibration plate 65 transports the small shaft 103 to the small shaft seat 68 and will be clamped by the shaft clamp 66, the small shaft pushing cylinder 67 drives the shaft clamp 66 to reciprocate between the small shaft seat 68 and the second work station 15 along the guide groove 661 between the small shaft seat 68 and the cover plate 69. The small shaft vibration plate 65 conveys the small shaft 103 to the small shaft seat 68 by vibration, and the shaft clamp 66 includes a first clamp block 662, a second clamp block 663, and a tension spring 664. A second clamping opening 665 is formed between the first clamp block 662 and the second clamp block 663 to provide a clamping force through the tension spring 664. The small shaft 103 conveyed to the small shaft seat 68 is clamped by the second clamping opening 665, and then the small shaft cylinder 67 pushes the shaft clamp 66 to move the small shaft 103 to the bottom of the small shaft pressing head 63 on the second station 15, and the small shaft cylinder 62 presses the small shaft pressing head 63 down to press the small shaft 103 into the bearing 102 on the second station 15.

[0052] like Figure 10-12 As shown, the feed frame mechanism 7 includes a pressing frame device 74 and a feeding frame device 71. The pressing frame device 74 is located at the third station 16. The pressing frame device 74 includes a transfer seat 75, a pressure rod 76, a material taking needle 77, a pressing frame cylinder 78, and a support plate 79. The transfer seat 75 is provided with a material discharge port 701. The support plate 79 is movably arranged on the transfer seat 75 and inserted into the material discharge port 701. The support plate 79 opens and closes the material discharge port 701 through the support cylinder 751. The feeding frame device 71 includes a fixed frame vibration plate 72, a fixed frame The material channel 73 and the fixed frame vibrating plate 72 transport the fixed frame 104 to the support plate 79 at the material discharge port 701 through the fixed frame material channel 73. The fixed frame pressing cylinder 78 is arranged above the support plate 79 and presses the fixed frame 104 at the material discharge port 701 into the assembly of the pulley 101, the bearing 102 and the small shaft 103 through the pressure rod 76. The material picking needle 77 is coaxially arranged in the pressure rod 76. The material picking needle 77 is arranged in the pressure rod 76 in a pneumatic manner and can be lifted and lowered so that the material picking needle 77 can position the fixed frame 104 on the support plate 79.

[0053] The support plate 79 is provided with a positioning groove 702 along the moving direction of the support plate 79, and the bottom of the positioning groove 702 is provided with a position-avoiding hole 703 for the material extraction needle 77 to pass through, and the position-avoiding hole 703 is provided along the moving direction of the support plate 79. When the fixed frame delivery device 71 delivers the fixed frame 104 to the support plate 79, the fixed frame 104 is positioned through the positioning groove 702, so that the material extraction needle 77 can complete the positioning with the fixed frame 104. A baffle 704 is provided on the side of the support plate 79 close to the pressure rod 76 to prevent the fixed frame 104 delivered from the fixed frame delivery device 71 to the unloading port 701 from falling off the support plate 79 during loading. The position-avoiding hole 703 ensures that the material extraction needle 77 passing through the support plate 79 will not affect the telescopic process of the support plate 79.

[0054] The shaft of the pressure rod 76 is provided with a smooth bore 705 connected to an external air source, and a feeding needle 77 is arranged in the smooth bore 705. The feeding needle 77 is provided with a feeding part 706 and a piston part 707. The piston part 707 is provided with a sealing ring 708 that is in sliding contact with the inner wall of the smooth bore 705. The piston part 707 moves along the inner wall of the smooth bore 705. The feeding needle 77 is provided with a feeding spring 709. The feeding spring 709 is located between the piston part 707 and the bottom of the smooth bore 705. Under the action of the feeding spring 709 and the pneumatic air source, the feeding part 706 extends reciprocatingly from the lower part of the pressure rod 76. When the material taking part 706 is inserted into the insertion hole of the fixing frame 104 on the support plate 79, the material taking needle 77 is positioned with the fixing frame 104, and the material taking needle 77 will be inserted deeper, and basically the lower end of the material taking needle 77 will be close to the small shaft 103 of the third station 16, and then the support plate 79 is retracted into the transfer seat 75, thereby opening the material discharge port 701, and the pressure rod 76 moves downward, thereby pushing the fixing frame 104 downward along the material taking needle 77 and then inserting it on the small shaft 103 of the third station 16, and under the stability of the material taking needle 77, the fixing frame 104 is ensured to be stably inserted on the small shaft 103. The diameter of the material taking part 706 of the material taking needle 77 matches the diameter of the small shaft 103 or is slightly smaller than the diameter of the small shaft 103, so that the fixing frame 104 will not shake when it is on the material taking needle 77.

[0055] The fixing frame 104 is pre-positioned by the support plate 79, and then positioned by the material picking needle 77, so that the fixing frame 104 is accurately positioned above the third station 16, and the fixing frame 104 positioned on the material picking needle 77 is pressed onto the small shaft 103 on the third station 16 by the pressure rod 76, ensuring that the fixing frame 104 can be accurately pressed onto the small shaft 103, thereby ensuring the installation quality of the fixing frame 104.

[0056] like Fig.13As shown, a discharging assembly 8 is provided at the end of the second material channel 13, and the discharging assembly 8 includes a discharging chute 81, a material dividing plate 82, a defective product box 83, and a sorting cylinder 84. The discharging chute 81 is provided at the end of the second material channel 13, and a sorting port 85 is provided in the middle of the discharging chute 81. The material dividing plate 82 is rotatably provided at the sorting port 85 through the sorting cylinder 84, and the defective product box 83 is provided below the discharging chute 81 and below the sorting port 85. The defective products can be sorted into the defective product box 83 by the discharging assembly 8, thereby improving the yield rate of the finished product.

[0057] like Figure 1 As shown, the assembly machine also includes a frame 9, a pulley feeding mechanism 1, a bearing insertion mechanism 5, a small shaft insertion mechanism 6, and a fixed frame insertion mechanism 7 are arranged on the frame 9, a bracket 91 is arranged on the frame 9, a bearing pressing cylinder 52, a small shaft pressing cylinder 62, and a fixed frame pressing cylinder 78 are fixed on the bracket 91, and a second material channel 13 is arranged below the bracket 91. A guide sleeve seat 93 for guiding the bearing pressure head 53, the small shaft pressure head 63, and the pressure rod 76 is arranged below the bearing pressing cylinder 52, the small shaft pressing cylinder 62, and the fixed frame pressing cylinder 78, and an electronic ruler 92 is arranged on the guide sleeve seat 93 to detect the stroke of the bearing pressure head 53, the small shaft pressure head 63, and the pressure rod 76, and accurately control the pressing process.

[0058] The present invention has reasonable structure, novel design and strong practicality. The fixed frame 104, the small shaft 103 and the pulley 101 adopt a vibration plate to divide and feed the materials, and the bearing 102 adopts a turntable 56 and a bearing barrel 57 to divide and feed the materials. The bearing 102, the small shaft 103 and the fixed frame 104 are respectively pressed on the pulley 101 at the first, second and third stations on the second material channel 13 in sequence, realizing full-automatic assembly operation with high production efficiency.

[0059] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic assembly machine for motor components, characterized in that: The invention comprises a pulley feeding mechanism, a bearing feeding mechanism, a small shaft feeding mechanism and a fixed frame feeding mechanism, wherein the pulley feeding mechanism comprises a pulley vibrating plate, a first material channel and a second material channel which are arranged in sequence, wherein the first material channel and the second material channel have a certain height difference, a lifting and dividing material component is arranged between the first material channel and the second material channel, the pulley on the first material channel is lifted to the second material channel by the lifting and dividing material component, the first station, the second station and the third station are arranged in sequence on the second material channel, a positioning device for clamping and positioning the pulley and a stepping feeding device are arranged on the second material channel, and the stepping feeding device moves the pulley on the second material channel in a stepping manner to drive the pulley to pass through the first station, the second station and the third station in sequence. The first station, the second station and the third station are connected to the bearing mechanism, the small shaft mechanism and the fixed frame mechanism respectively. At the first station, the bearing mechanism is used to assemble the bearing on the pulley. At the second station, the small shaft mechanism is used to assemble the small shaft on the pulley and the bearing assembly. At the third station, the fixed frame mechanism is used to assemble the fixed frame on the pulley, the bearing and the small shaft assembly. The lifting and material distribution assembly includes a lifting cylinder and a lifting plate. The lifting plate is lifted and lowered back and forth between the first material channel and the second material channel by the lifting cylinder. The lifting plate is provided with a material trough for clamping the pulley. When the lifting plate is at the lowest point, the material trough is flush with the first material channel. When the lifting plate is at the highest point, the The material trough is flush with the second material channel; the outer side wall of the lifting plate near the second material channel is provided with an outer step, and a limiting step is provided on the end face of the second material channel. When the lifting plate is at the highest point, the outer step abuts against the limiting step; the positioning device includes a side positioning assembly and a lower positioning assembly. The side positioning assembly is provided at the first station, the second station and the third station of the second material channel, and the side positioning assembly includes a material clamp and a side spring. The material clamp is rotatably arranged on the inner side wall of the second material channel through an axle pin. The side spring is arranged between the material clamp and the inner side wall of the second material channel and provides the material clamp with a clamping force for clamping the pulley; the lower positioning assembly includes a positioning column, a sliding pad, and a positioning cylinder. The first working station and the third working station are respectively provided with mounting holes, the positioning column is inserted into the mounting hole, the positioning column sleeve is provided with a return spring, the sliding pad is connected to the positioning cylinder through a connecting plate and is arranged below the second material channel, the end of the sliding pad is provided with an inclined surface connected to the lower end of the positioning column, and the positioning column can be pushed and inserted into the pulley on the second material channel through the inclined surface of the sliding pad; it also includes a discharging assembly, the discharging assembly includes a discharging chute, a dividing plate, a defective box, and a sorting cylinder, the discharging chute is arranged at the end of the second material channel, and a sorting port is arranged in the middle of the discharging chute, the dividing plate is rotatably arranged at the sorting port through the sorting cylinder, and the defective box is arranged below the discharging chute and below the sorting port.

2. The automatic motor component assembly machine according to claim 1, characterized in that: The step feeding device includes an advance and retreat cylinder, a movable seat, a material transfer cylinder, a guide rail, and a shift fork. The shift fork is provided with a recessed position in contact with a pulley. A plurality of shift forks are arranged on the guide rail at intervals. A slider matching the guide rail is fixed on the movable seat. The movable seat is transmission-connected with the driving end of the advance and retreat cylinder. The material transfer cylinder is installed on the movable seat. The guide rail is transmission-connected with the driving end of the material transfer cylinder. The material transfer cylinder drives the guide rail and the shift fork to move relative to the movable seat. The advance and retreat cylinder drives the movable seat and the guide rail to move. The driving direction of the advance and retreat cylinder is perpendicular to the driving direction of the material transfer cylinder.

3. The automatic motor component assembly machine according to claim 1, characterized in that: The bearing insertion mechanism includes a bearing seat device and a bearing pressing device arranged on one side of the bearing seat device, the bearing pressing device is located at the first workstation, the bearing pressing device includes a bearing pressing cylinder and a bearing pressing head, and the bearing pressing cylinder drives the bearing pressing head to press the bearing on the first workstation into the pulley; the bearing seat device includes a bearing seat bottom plate, a turntable, a bearing barrel, a bearing pushing plate, and a downward pressure cylinder, the turntable is rotatably arranged on the bearing seat bottom plate, at least two bearing barrels are arranged on the turntable, the bearing pushing plate moves between the dividing port below the turntable and the bearing pressing head of the bearing pressing device, the turntable drives at least two bearing barrels to switch at the dividing port, and the bearing in the bearing barrel is pressed into the dividing port by the downward pressure cylinder and pushed to the first workstation through the bearing pushing plate.

4. The automatic assembly machine for motor components according to claim 1, characterized in that: The small shaft feeding mechanism includes a small shaft sending device and a small shaft pressing device, the small shaft pressing device is located at the second work station, the small shaft pressing device includes a small shaft pressing cylinder and a small shaft pressing head, the small shaft pressing cylinder drives the small shaft pressing head to press the small shaft on the second work station into the pulley and bearing assembly, the small shaft sending device includes a small shaft vibration plate, a shaft clamp, a small shaft pushing cylinder, a small shaft seat, and a cover plate, the small shaft vibration plate transports the small shaft to the small shaft seat and will be clamped by the shaft clamp, and the small shaft pushing cylinder drives the shaft clamp to move back and forth between the small shaft seat and the second work station along the guide groove between the small shaft seat and the cover plate.

5. The automatic motor component assembly machine according to claim 1, characterized in that: The feeding fixed frame mechanism includes a pressing fixed frame device and a sending fixed frame device, the pressing fixed frame device is located at the third workstation, the pressing fixed frame device includes a transfer seat, a pressure rod, a material picking needle, a pressing fixed frame cylinder, and a support plate, the transfer seat is provided with a feeding port, the support plate can be movably arranged on the transfer seat and inserted into the feeding port, the support plate opens and closes the feeding port through the support cylinder, the sending fixed frame device includes a fixed frame vibration plate and a fixed frame material channel, the fixed frame vibration plate transports the fixed frame to the support plate at the feeding port through the fixed frame material channel, the pressing fixed frame cylinder is liftable and arranged above the support plate through the pressure rod and presses the fixed frame at the feeding port into the pulley, bearing and small shaft assembly, the material picking needle is coaxially arranged in the pressure rod, and the material picking needle is pneumatically liftable and arranged in the pressure rod so that the material picking needle positions the fixed frame on the support plate.

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