Automatic riveting machine for motor shell

Abstract

The invention discloses an automatic riveting machine for a motor shell. Comprising a rack, a horizontal rotating disc assembled on the rack, a plurality of bearing seats which are arranged on the horizontal rotating disc, are arranged at intervals in the rotating direction of the horizontal rotating disc and are used for bearing motor shells, and shaft core rotating and pressing mechanisms which are assembled on the rack and are sequentially arranged above the horizontal rotating disc correspondingly in the rotating direction of the horizontal rotating disc. The invention discloses a shaft core automatic welding machine which comprises a rack, a shaft core rotating and pressing mechanism, a horizontal rotating disc, a motor shell feeding mechanical arm, a rivet pressing mechanism, a laser welding mechanism and a finished product discharging mechanical arm, and a shaft core supply mechanism located outside the horizontal rotating disc and assembled on the rack is arranged beside the shaft core rotating and pressing mechanism. A motor shell feeding mechanism which is located outside the horizontal rotating disc and assembled on the machine frame is arranged beside the motor shell feeding mechanical arm. According to the automatic riveting machine for the motor shell, the purposes of automatic riveting of the motor shell and automatic discharging of finished products can be achieved.

Description

Technical Field

[0001] This invention relates to the technical field of motor housing riveting, and more particularly to an automatic motor housing riveting machine. Background Technology

[0002] As is well known, the assembly process of a motor involves a centering step between the shaft and the motor housing, a step of riveting the motor housing after centering to keep the motor housing and the shaft coaxial, and a step of using laser to weld the motor housing and the shaft to obtain the finished product.

[0003] However, the centering steps between the shaft and the motor housing, the steps of riveting the motor housing after centering to keep the motor housing and the shaft coaxial, and the steps of welding the motor housing and the shaft with laser to obtain the finished product are currently mainly done manually by operators. Therefore, the existing motor housings have the defect of low assembly efficiency.

[0004] Therefore, there is an urgent need for an automatic riveting machine for motor housings to overcome one or more of the aforementioned defects. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic riveting machine for motor housings that enables automatic riveting of motor housings and automatic unloading of finished products.

[0006] To achieve the above objectives, the automatic motor housing riveting machine of the present invention includes a frame, a horizontal turntable mounted on the frame, a plurality of bearing seats arranged on the horizontal turntable and spaced apart along the rotation direction of the horizontal turntable for supporting the motor housing, and a shaft core pressing mechanism, a motor housing feeding robot, a riveting mechanism, a laser welding mechanism, and a finished product unloading robot, each mounted on the frame and sequentially arranged above the horizontal turntable along the rotation direction of the horizontal turntable. A shaft core feeding mechanism is provided next to the shaft core pressing mechanism, located outside the horizontal turntable and mounted on the frame, and a motor housing feeding mechanism is provided next to the motor housing feeding robot, located outside the horizontal turntable and mounted on the frame.

[0007] Compared with existing technologies, this design utilizes a system of "a horizontal turntable mounted on the frame, multiple bearing seats arranged on the horizontal turntable and spaced apart along the rotation direction of the turntable for supporting the motor housing, and shaft core pressing mechanisms, motor housing loading robots, riveting mechanisms, laser welding mechanisms, and finished product unloading robots mounted on the frame and sequentially positioned above the horizontal turntable along the rotation direction of the turntable." Furthermore, it incorporates a design where "a shaft core feeding mechanism is located outside the horizontal turntable and mounted on the frame next to the shaft core pressing mechanism, and a motor housing feeding mechanism is located outside the horizontal turntable and mounted on the frame next to the motor housing loading robot." This achieves the following objectives: "centering between the motor housing and the shaft core; after centering, the motor housing is riveted together with the shaft core; the combined motor housing and shaft core are laser-welded to obtain the finished product; and automatic unloading of the finished product."

[0008] Preferably, the automatic riveting machine for motor housings of the present invention further includes a finished product unloading feeder line located next to the finished product unloading robot and a dynamic balancing mechanism mounted on the frame for detecting the dynamic balance of the finished product obtained after welding by the laser welding mechanism. The dynamic balancing mechanism is located between the horizontal turntable and the finished product unloading feeder line, and is also arranged below the finished product unloading robot.

[0009] Preferably, the dynamic balancing mechanism includes a mechanism frame mounted on the machine frame, a dynamic balancing motor, a driving pulley, a driven pulley, a belt, a linear actuator, a dynamic balancing instrument, and a mounting base for assembling finished products. The driving pulley and the driven pulley are rotatably arranged on the machine frame and horizontally spaced apart from each other. The dynamic balancing motor is mounted on the mechanism frame and drives the driving pulley to rotate. The belt is wound around the driving pulley and the driven pulley. The linear actuator is mounted on the mechanism frame. The mounting base is located outside the belt and mounted on the linear actuator. The dynamic balancing instrument is mounted on the mechanism frame and located outside the belt. The dynamic balancing instrument also corresponds to the finished product carried by the mounting base.

[0010] Preferably, the finished product unloading robot includes a robot frame body mounted on the frame, a transverse drive mounted on the robot frame body, a transverse seat mounted on the transverse drive, an upper and lower drive mounted on the transverse seat, an upper and lower sliding seat mounted on the upper and lower drive, and a first pick-and-place assembly and a second pick-and-place assembly each mounted on the upper and lower sliding seats and spaced apart from each other along the transverse direction of the transverse seat.

[0011] Preferably, the frame is further provided with an inclined feeding hopper that extends obliquely over the finished product unloading line from below.

[0012] Preferably, a transfer mechanism mounted on the frame is provided next to the laser welding mechanism. The transfer mechanism is used to remove the motor housing and shaft core riveted by the riveting mechanism from the support seat and transfer them to the laser welding mechanism. The transfer mechanism is also used to transfer the finished product obtained by the laser welding mechanism to the support seat.

[0013] Preferably, the motor housing feeding mechanism includes a vibrating screening disc mounted on the frame, a conveying trough for orderly conveying the motor housings sorted by the vibrating screening disc, a vibrator mounted on the frame for vibrating the conveying trough, and a receiving and limiting seat for blocking and limiting the motor housings sliding along the conveying trough to the end of the conveying trough, the receiving and limiting seat having a receiving and limiting groove matching the motor housing.

[0014] Preferably, the support includes a base body, a model head that can slide up and down in the base body and is used for the installation of a motor housing and a shaft core, a fixed top rod whose lower end is fixed to the base body and whose upper end extends from the center of the model head into the model head, and a first spring disposed between the base body and the model head. The base body is also provided with a guide post that can slide up and down through the horizontal turntable. The guide post is sleeved on a second spring. The guide post is provided with an abutment structure for the lower end of the second spring to elastically abut against it. The horizontal turntable is provided with a guide sleeve that slides and cooperates with the guide post. The upper end of the second spring elastically abuts against the guide sleeve.

[0015] Preferably, the riveting mechanism includes a frame, a riveting driver mounted on the frame and located above the support, a pressure sensor located below and connected to the riveting driver, an upper die head located below and connected to the pressure sensor, a top pressure ring that can slide up and down relative to the upper die head and located above the die head, a third spring disposed between the top pressure ring and the upper die head, an upper push rod located below the guide post and capable of sliding up and down, and a linkage driver mounted on the frame and used to drive the upper push rod to slide up and down. A linkage inclined surface is provided between the output end of the linkage driver and the upper push rod.

[0016] Preferably, the shaft core pressing mechanism includes a mechanism frame mounted on the frame, a horizontal actuator mounted on the mechanism frame, a receiving slide mounted on the horizontal actuator, a vertical actuator located above the receiving slide and mounted on the mechanism frame, a lower push rod mounted on the vertical actuator and located above the receiving slide, and a transverse span across the receiving slide and mounted on the mechanism frame. The transverse span is provided with an entry tube for the shaft core to enter and a through passage for the lower push rod to pass downward through the transverse span.

[0017] Preferably, the shaft feeding mechanism includes upper and lower frames and material boxes, receiving seats, receiving drivers, feeding control chambers, lifting drivers, rotating drivers, and suction heads, each located above the corresponding shaft pressing mechanism. The feeding control chamber is mounted on the upper and lower frames and has an upper inlet for the shafts to fall flat into the feeding control chamber. The feeding control chamber is also provided with an external delivery pipe for conveying the shafts lying flat in the feeding control chamber to the shaft pressing mechanism. The receiving seat is located above the feeding control chamber and slides on the upper and lower frames. The receiving driver is mounted on the upper and lower frames and is connected to the receiving seat. The receiving driver drives the receiving seat to open or close. The upper inlet is closed, the suction head is located above the upper inlet, the rotary driver is located above the suction head and is assembled and connected to the suction head, the lifting driver is located above the rotary driver and is assembled and connected to the rotary driver, and the lifting driver is assembled on the upper and lower frames; the material box is located above the receiving seat and is assembled on the upper and lower frames, the material box allows the sorted shaft cores to be transferred to the receiving seat in an orderly manner, and the receiving seat, driven by the receiving driver, transports the shaft cores transported by the material box to the upper inlet; the upper and lower frames are equipped with a CCD device for detecting the orientation of the shaft cores on the receiving seat.

[0018] Preferably, the material box has an upward-facing sorting cavity and a discharge channel communicating with the sorting cavity for discharging shaft cores one by one. The bottom surface of the sorting cavity is an inclined surface for conveying shaft cores downwards. The first side surface of the sorting cavity is an upper and lower side surface adjacent to the lower end of the bottom surface of the cavity along the direction of downward conveying of shaft cores. The discharge channel communicates with the sorting cavity at both the first side surface and the bottom surface of the cavity.

[0019] Preferably, the material box is provided with a pusher head that can be horizontally inserted into the material box and a return spring sleeved in the pusher head. The return spring is always capable of driving the pusher head to slide in the direction of retracting into the first side. The pusher head is exposed outside the sorting cavity and the material box respectively. The pusher head is opposite to the lower end of the bottom surface of the cavity. The pusher head is also adjacent to the discharge channel. The material box is provided with a pusher driver for driving the pusher head to slide closer to the bottom surface of the cavity.

[0020] Preferably, the feeding control chamber is provided with a push suction head arranged opposite to the external feeding pipe and used to feed the shaft core entering the feeding control chamber into the external feeding pipe, and a sliding driver for driving the push suction head to slide. Attached Figure Description

[0021] Figure 1 This is a perspective view of the automatic riveting machine for motor housings according to the present invention.

[0022] Figure 2 yes Figure 1 The diagram shows a plan view of the automatic riveting machine for motor housings, viewed in the direction indicated by arrow A.

[0023] Figure 3 This is a plan view of the support seat in the automatic riveting machine for motor housings of the present invention, viewed from top to bottom.

[0024] Figure 4 It is along Figure 3 Internal view of the section cut along the BB line.

[0025] Figure 5 This is a perspective view of the motor housing loading robot in the automatic motor housing riveting machine of the present invention.

[0026] Figure 6 This is a perspective view of the motor housing feeding mechanism in the automatic motor housing riveting machine of the present invention.

[0027] Figure 7 This is a plan view showing a carrier in the automatic riveting machine for motor housings of the present invention being rotated to a position relative to the riveting mechanism.

[0028] Figure 8 This is a perspective view of the finished product unloading robot in the automatic riveting machine for motor housings of the present invention.

[0029] Figure 9 This is a perspective view showing the shaft core pressing mechanism and shaft core feeding mechanism in the automatic riveting machine for motor housings of the present invention.

[0030] Figure 10 This is a perspective view of the shaft core pressing mechanism in the automatic riveting machine for motor housings of the present invention.

[0031] Figure 11 Is Figure 10 Based on this, a three-dimensional diagram is shown when the transverse seat moves away from the receiving slide.

[0032] Figure 12 This is a perspective view of the shaft core feeding mechanism in the automatic riveting machine for motor housings of the present invention.

[0033] Figure 13 yes Figure 10 The diagram shows a top-down view of the material box in the shaft feeding mechanism.

[0034] Figure 14 It is along Figure 13 Internal view of the section cut along the CC line.

[0035] Figure 15 It is a 3D view showing the feeding control bin, the push suction head, and the sliding drive.

[0036] Figure 16 This is a perspective view of the dynamic balancing mechanism in the automatic riveting machine for motor housings of the present invention.

[0037] Figure 17 It is a cross-sectional view obtained by cutting the finished product after laser welding by a plane passing through its center line. Detailed Implementation

[0038] To illustrate the technical content and structural features of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0039] Please see Figure 1 and Figure 2 The automatic motor housing riveting machine 100 of the present invention includes a frame 10a, a horizontal turntable 10b mounted on the frame 10a, and a plurality of motor housings 210 (see [reference]) arranged on the horizontal turntable 10b and spaced apart along the rotation direction of the horizontal turntable 10a. Figure 3 The support base 20 and the shaft core pressing mechanism 30, motor housing loading robot 40a, riveting mechanism 50a, laser welding mechanism 50b, and finished product unloading robot 60a are all mounted on the frame 10a and sequentially arranged above the horizontal turntable 10b along the rotation direction of the turntable 10b. Next to the shaft core pressing mechanism 30 is a shaft core feeding mechanism 70 located outside the horizontal turntable 10b and mounted on the frame 10a. The shaft core feeding mechanism 70 feeds the shaft core 220 (see...) Figure 3 The motor housing 210 is conveyed to the shaft core pressing mechanism 30, which then transfers the shaft core 220 to the support seat 20 conveyed by the horizontal turntable 10b. Next to the motor housing loading robot 40a, a motor housing feeding mechanism 40b is located outside the horizontal turntable 10b and mounted on the frame 10a. The motor housing feeding mechanism 40b conveys the motor housing 210 to the motor housing loading robot 40a, which then transfers the motor housing 210 to the support seat 20 conveyed by the horizontal turntable 10b. This ensures that the motor housing 210 and shaft core 220 remain centered on the support seat 20. (See attached diagram). Figure 4 As shown. In the automatic motor housing riveting machine 100 of the present invention, since the support seat 20 is located on the horizontal turntable 10b, the horizontal turntable 10b drives each support seat 20 to rotate to a position opposite to the shaft core pressing mechanism 30, the motor housing loading robot 40a, the riveting mechanism 50a, the laser welding mechanism 50b, or the finished product unloading robot 60a. This facilitates the shaft core pressing mechanism 30 to vertically insert the shaft core 220 downward into the center of the support seat 20, and facilitates the motor housing loading robot 40a to mount the motor housing 210 onto the support seat 20 and maintain a centered position with the shaft core 220 (see...). Figure 4This facilitates the riveting mechanism 50a to push the shaft core 220 downwards until its upper end is flush with the motor housing 210, and to rivet the motor housing 210 together with the flush shaft core 220. It also facilitates the laser welding mechanism 50b to weld the combined motor housing 210 and shaft core 220 to obtain the finished product 200, and facilitates the automatic unloading of the finished product 200 by the finished product unloading robot 60a. More specifically, see the description below.

[0040] like Figure 1 and Figure 2 As shown, as an example, the automatic motor housing riveting machine 100 of the present invention further includes a finished product unloading feeder line 60b disposed next to the finished product unloading robot 60a and a dynamic balancing mechanism 80 mounted on the frame 10a for detecting the dynamic balance of the finished product 200 obtained after welding by the laser welding mechanism 50b. The dynamic balancing mechanism 80 is located between the horizontal turntable 10b and the finished product unloading feeder line 60b, and the dynamic balancing mechanism 80 is also arranged below the finished product unloading robot 60a. Therefore, with the help of the dynamic balancing mechanism 80, the finished product 200 obtained after welding can be dynamically balanced to determine whether the finished product 200 is qualified. The qualified finished product unloading robot 60a transfers the qualified finished product 200 to the finished product unloading feeder 60b, and the finished product unloading feeder 60b sends the finished product 200 out of the automatic riveting machine 100 of the present invention. When the finished product 200 is unqualified, the unqualified finished product unloading robot 60a moves the unqualified finished product 200 to the inclined feeder hopper 11 provided by the frame 10b, which tilts over the finished product unloading feeder 60b from below, so as to realize the classification and recycling of the unqualified finished product 200. Specifically, in Figure 1 In this example, the finished product unloading and delivery line 60b can be, but is not limited to, a belt conveyor line.

[0041] like Figure 8 As shown, as an example, the finished product unloading robot 60a includes a robot frame 61 mounted on a frame 10a, a transverse drive 62 mounted on the robot frame 61, a transverse base 63 mounted on the transverse drive 62, an up / down drive 64 mounted on the transverse base 63, an up / down slide base 65 mounted on the up / down drive 64, and each mounted on the up / down slide base 65 and along the transverse direction of the transverse base 63 (see...). Figure 8 The first pick-and-place assembly 66 and the second pick-and-place assembly 67, separated from each other (as indicated by the double arrows in the diagram), are designed to allow the finished product unloading robot 60a to simultaneously transfer the finished product 200 from the carrier 20 conveyed by the horizontal turntable 10b to the dynamic balancing mechanism 80, and at the same time, transfer the finished product 200 from the dynamic balancing mechanism 80 to the finished product unloading feeder 60b or the inclined feeder hopper 11. Specifically, in Figure 8In this example, the transverse drive 62 and the up-down drive 64 may be, but are not limited to, pneumatic or hydraulic cylinders; the first pick-and-place assembly 66 and the second pick-and-place assembly 67 may be, but are not limited to, vacuum adsorption assemblies.

[0042] like Figure 16 As shown, as an example, the dynamic balancing mechanism 80 includes a mechanism frame 81 mounted on a frame 10a, a dynamic balancing motor 82, a driving pulley 83, a driven pulley 84, a belt 85, a linear actuator 86, a dynamic balancing tester 87, and a mounting base 88 for assembling 200 finished products. The driving pulley 83 and driven pulley 84 are rotatably arranged on the frame 81 and horizontally spaced apart from each other; the dynamic balancing motor 82 is mounted on the mechanism frame 81, which provides support for the motor, and also drives the driving pulley 83 to rotate; the belt 85 is wound around the driving pulley 83 and driven pulley 84 to allow them to rotate together by means of the belt 85; the linear actuator 86 is mounted on the mechanism frame 81, which provides support for the linear actuator 86; the mounting base 88 is positioned... A linear actuator 86 is mounted on the outside of the belt 85. The linear actuator 86 drives the mounting base 88 and the finished product 200 on it to move closer to or away from the belt 85. When the finished product 200 contacts the belt 85, the rotating belt 85 drives the finished product 200 to rotate through frictional contact. A dynamic balancing instrument 87 is mounted on the mechanism frame 81 and located on the outside of the belt 85. The dynamic balancing instrument 87 also corresponds to the finished product 200 carried by the mounting base 88 and is used to detect the dynamic balance of the finished product 200 that is driven to rotate by the belt 85. Specifically, at Figure 16 In this example, the linear actuator 86 may be, but is not limited to, a pneumatic or hydraulic cylinder. It should be noted that the structure of the dynamic balancing mechanism 80 is simplified because it includes a mechanism frame 81, a dynamic balancing motor 82, a driving pulley 83, a driven pulley 84, a belt 85, a linear actuator 86, a dynamic balancing tester 87, and a set base 88 for the finished product set 200.

[0043] like Figure 5 As shown, as an example, the motor housing loading robot 40a includes a robot frame 41, a lateral actuator 42, a lateral seat 43, and a gripping assembly 44. The robot frame 41 is mounted on the frame 10a, the lateral actuator 42 is mounted on the robot frame 41, the lateral seat 43 is mounted on the lateral actuator 42, and the gripping assembly 44 is mounted on the lateral actuator 42; this design simplifies the structure of the motor housing loading robot 40a. Specifically, the lateral actuator 42 can be, but is not limited to, a cylinder or a hydraulic cylinder, and the gripping assembly 44 can be a suction assembly. Alternatively, as... Figure 6As shown, as an example, the motor housing feeding mechanism 40b includes a vibrating screening disc 45 mounted on the frame 10a, a conveying trough 46 for orderly conveying the motor housings 210 sorted by the vibrating screening disc 45 outward, a vibrator 47 mounted on the frame 10a for vibrating the conveying trough 46, and a receiving and limiting seat 48 for blocking and limiting the motor housings 210 sliding along the conveying trough 46 to the end of the conveying trough 46. The receiving and limiting seat 48 has a receiving and limiting groove 481 that matches the motor housing 210. This design more effectively ensures the reliability of the orderly feeding of motor housings 210 to the motor housing feeding robot 40a.

[0044] like Figure 1 and Figure 2 As shown in the figure, as an example, a transfer mechanism 90 mounted on the frame 10a is provided next to the laser welding mechanism 50b. The transfer mechanism 90 is used to remove the motor housing 210 and shaft core 220, which have been riveted by the riveting mechanism 50a, from the support seat 20 and transfer them to the laser welding mechanism 50b. The transfer mechanism 90 is also used to transfer the finished product 200 obtained after welding by the laser welding mechanism 50b to the support seat 20. Therefore, with the help of the transfer mechanism 90, the welding arrangement of the motor housing 210 and shaft core 220 can be carried out outside the horizontal turntable 10b. It should be noted that since the structure of the transfer mechanism 90 is similar to that of the motor housing loading robot 40a, it will not be described in detail here.

[0045] Combination Figure 3 and Figure 4 As an example, the support 20 includes a base 21, a model head 22 that is slidably placed in the base 21 and for housing the motor housing 210 and inserting the shaft core 220, a fixed top rod 23 whose lower end is fixed to the base 21 and whose upper end extends into the model head 22 from the center of the model head 22, and a first spring 24 disposed between the base 21 and the model head 22; so that under the action of the first spring 24, the model head 22 can slide and extend relative to the base 21 in the vertical direction, and the fixed top rod 23 can provide guidance for the upward and downward sliding of the model head 22; the base 21 is also provided with a guide post 211 that can slide and extend through the horizontal turntable 10b. The second spring 25 is sleeved on the guide post 211, which has an abutment structure 212 for the lower end of the second spring 25 to elastically abut against it. The horizontal turntable 10b has a guide sleeve 12 that slides with the guide post 211, and the upper end of the second spring 25 elastically abuts against the guide sleeve 12. This design allows the bearing seat 20 to slide up and down relative to the horizontal turntable 10b under the guidance of the guide sleeve 12 and the guide post 211, and the second spring 25 provides a restoring force for the bearing seat 20 to slide upward and return to its original position. This facilitates the riveting operation of the riveting mechanism 50a on the motor housing 210 and makes it easier to push the shaft core 220 to a position where its upper end is flush with the motor housing 210. The flush state is shown in the figure. Figure 17 As shown.

[0046] Combination Figure 4 and Figure 7 As an example, the riveting mechanism 50a includes a mechanism frame 51, a riveting actuator 52 mounted on the mechanism frame 51 and located above the bearing seat 20, a pressure sensor 53 located below and connected to the riveting actuator 52, an upper die head 54 located below and connected to the pressure sensor 53, and a top pressure ring 55 that can slide up and down relative to the upper die head 54 and is located above the die head 22 (see...). Figure 7 The mechanism includes a third spring 56 located between the top pressure ring 55 and the upper die head 54, an upper push rod 57 located below the guide post 211 and capable of sliding up and down, and a linkage driver 58 mounted on the mechanism frame 51 for linking the upper push rod 57 to slide up and down. A linkage inclined surface 59 is provided between the output end 581 of the linkage driver 58 and the upper push rod 57; therefore, during the riveting process, the riveting driver 52 drives the pressure sensor 53, the upper die head 54, the top pressure ring 55, and the third spring 56 to slide downwards together until the top pressure ring 55 contacts the motor housing 210 carried by the die head 22. When the linkage driver 58 continues to maintain its original drive after the top pressure ring 55 contacts the motor housing 210 carried by the die head 22, the top pressure ring 55 pushes the die head 22 to compress the first spring 24 and slides downwards. Because the third spring 56 is provided between the top pressure ring 55 and the upper die head 54, the top pressure ring 55 compresses the first spring 24 and slides downwards. The pressure ring 55 provides a cushioning effect against the pushing action of the motor housing 210 carried by the mold head 22. When the pressure ring 55 cannot push the mold head 22 carrying the motor housing 210 downwards, the pressure ring 55 pushes the third spring 56 back, causing the upper mold head 54 to extend out of the pressure ring 55. This allows the upper mold head 54 to push the shaft core 220 downwards to the position where it abuts against the fixed push rod 23 while the pressure ring 55 is pressing against the motor housing 210. Simultaneously, with the linkage driver 58 driving the upper push rod 57 to slide the guide post 211 upwards via the linkage inclined surface 59, the flush shaft core 220 and the motor housing 210 are finally joined together. Specifically, in Figure 7 In this example, the riveting actuator 52 is a motor, and the linkage actuator 58 can be, but is not limited to, a pneumatic or hydraulic cylinder. Furthermore, due to the design of the pressure sensor 53, the riveting force can be monitored in real time.

[0047] like Figures 9 to 11As shown, as an example, the shaft core pressing mechanism 30 includes a mechanism body 31 mounted on the frame 10a, a horizontal actuator 32 mounted on the mechanism body 31, a receiving slide 33 mounted on the horizontal actuator 32, a vertical actuator 34 located above the receiving slide 33 and mounted on the mechanism body 31, a lower push rod 35 mounted on the vertical actuator 34 and located above the receiving slide 33, and a transverse seat 36 spanning above the receiving slide 33 and mounted on the mechanism body 31. The cross-span 36 is provided with an inlet tube 361 for the shaft core 220 to enter and a through passage 361 for the lower push rod 35 to pass downward through the cross-span 36. Therefore, under the drive of the horizontal actuator 32 on the receiving slide 33, the receiving slide 33 can slide to a position aligned vertically with the inlet tube 361 or to a position aligned vertically with the lower push rod 35, thereby facilitating the shaft core feeding mechanism 70 to feed the shaft core 220 into the receiving slide 33 and the shaft core 220 entering the shaft hole 331 of the receiving slide 33 is fed into the model head 22 of the bearing seat 20 by the lower push rod 35 under the drive of the vertical actuator 34. Specifically, in Figures 9 to 11 As an example, the horizontal actuator 32 and the vertical actuator 34 may be, but are not limited to, pneumatic or hydraulic cylinders.

[0048] like Figure 9 , Figure 12 and Figure 13 As shown, as an example, the shaft feeding mechanism 70 includes upper and lower frames 71 and material boxes 72, receiving seats 73, receiving actuators 74, feeding control chambers 75, lifting actuators 76, rotating actuators 77, and suction heads 78, each located above the shaft pressing mechanism 30. The feeding control chamber 75 is mounted on the upper and lower frames 71 and has an upper inlet 751 for the shaft 220 to fall flat into the feeding control chamber 75, as shown in the diagram. Figure 15As shown; the feeding control chamber 75 is also equipped with an external delivery pipe 752 for conveying the shaft core 220, which is placed flat inside the feeding control chamber 75, to the shaft core pressing mechanism 30. The receiving seat 73 is located above the feeding control chamber 75 and slides on the upper and lower frame 71. The receiving drive 74 is assembled on the upper and lower frame 71 and connected to the receiving seat 73. The receiving drive 74 drives the receiving seat 73 to open or close the upper inlet 751. The suction head 78 is located above the upper inlet 751. The rotary drive 77 is located above the suction head 78 and connected to the suction head 78. The lifting drive 76 is located above the rotary drive 77 and connected to the rotary drive 77. The lifting drive 76 is assembled on the upper and lower frame 71. The material box 72 is located above the receiving seat 73 and is mounted on the upper and lower frame 71. The material box 72 allows the sorted shaft cores 220 to be transferred to the receiving seat 73 in an orderly manner. Driven by the receiving driver 74, the receiving seat 73 conveys the shaft cores 220 from the material box 72 to the upper inlet 751. The upper and lower frame 71 is equipped with a CCD device 79d for detecting the orientation of the shaft cores 220 on the receiving seat 73. Therefore, with the help of the CCD device 79d, when the orientation of the shaft core 220 is incorrect, for example, in… Figure 15 When the tapered end 221 of the shaft core 220 is not facing correctly, the lifting driver 76 drives the rotary driver 77 and the suction head 78 to move downwards together until the suction head 78 contacts the shaft core 220 held in the open slot 731 of the receiving seat 73. At this time, the suction head 78 holds the shaft core 220, and then the lifting driver 76 drives the rotary driver 77 and the suction head 78 to move upwards together, thereby moving the shaft core 220 upwards out of the receiving seat 73, and the rotary driver 77 drives the suction head 78 to rotate together with the shaft core 220. The shaft core 220 is rotated to ensure it is oriented correctly. When the shaft core 220 is oriented correctly, the linear actuator 74 drives the receiving seat 73 to open the upper inlet 751. The lifting actuator 76 then drives the rotary actuator 77, the suction head 78, and the shaft core 220 to move downwards together until the shaft core 220 enters the upper inlet 751. At this point, the suction head 78 releases its grip on the shaft core 220 and, driven by the lifting actuator 76, returns to its original position upwards along with the rotary actuator 77 and the suction head 78, preparing for the next feeding of the lower shaft core 220 into the feeding control chamber 75. Specifically, the receiving actuator 74 and the lifting actuator 76 can be, but are not limited to, pneumatic or hydraulic cylinders, and the rotary actuator 77 can be, but is not limited to, a rotary pneumatic or rotary hydraulic cylinder. For a more detailed description of the shaft core feeding mechanism 70, please refer to the following description.

[0049] like Figure 15As shown, as an example, the feeding control chamber 75 is equipped with a push-suction head 753 arranged opposite to the delivery pipe 752 for feeding the shaft core 220 entering the feeding control chamber 75 into the delivery pipe 752, and a sliding actuator 754 for driving the push-suction head 753 to slide. Therefore, through the cooperation of the sliding actuator 754 and the push-suction head 753, the push-suction head 753 first sucks up the shaft core 220 in the feeding control chamber 75, and then the sliding actuator 754 drives the push-suction head 753 to slide towards the delivery pipe 752, thus achieving a more reliable feeding of the shaft core 220 into the delivery pipe 752 by the push-suction head 753. For example, the sliding actuator 754 can be, but is not limited to, a pneumatic cylinder or a hydraulic cylinder.

[0050] Combination Figure 9 , Figure 12 , Figure 13 and Figure 14 As an example, the material box 72 has a sorting cavity 72a with its opening 721 facing upwards, and a discharge channel 72b communicating with the sorting cavity 72a for discharging the shaft cores 220 one by one. The bottom surface 722 of the sorting cavity 72a is an inclined surface for the downward inclined conveying of the shaft cores 220, and the first side surface 723 of the sorting cavity 72a is in the direction of downward inclined conveying of the shaft cores 220 (see...). Figure 14 The upper and lower sides (indicated by the middle arrow D) adjacent to the lower end of the cavity bottom surface 722 can be optionally located at... Figure 14 In the example shown, the first side surface 723 is a vertical surface. Obviously, depending on actual needs, the first side surface 723 can also be other shapes, so it is not considered a perfect example. Figure 14 As shown, the discharge channel 72b communicates with the sorting cavity 72a at both the first side surface 723 and the bottom surface 722, so as to effectively control the orderly conveying of the shaft core 20 into the discharge channel 72b within the sorting cavity 72a by its own weight. Specifically, in Figure 14 As an example, the material box 72 is provided with a pusher head 79a that can be horizontally inserted into the material box 72 and a return spring 79b that is sleeved in the pusher head 79a. The return spring 79b always has the function of driving the pusher head 79a to slide in the direction of retracting into the first side surface 723. The pusher head 79a is exposed outside the sorting cavity 72a and the material box 72, respectively. The pusher head 79a is opposite to the lower end of the bottom surface 722 of the cavity. The pusher head 79a is also adjacent to the discharge channel 72b. The material box 72 is provided with A pusher 79c is provided to drive the pusher head 79a to slide towards the bottom surface 722 of the cavity; therefore, with the cooperation of the pusher 79c, the pusher head 79a, and the return spring 79b, the pusher head 79a can push and loosen the shaft core 220, effectively preventing the shaft core 220 from getting stuck at the extended intersection line between the first side surface 723 and the bottom surface 722 of the cavity, thereby ensuring the smooth and orderly discharge of the shaft core 220 along the discharge channel 72b. More specifically, in Figure 14In the process, a bridging frame 79e is provided between the push head 79a and the push driver 79c, and the push driver 79c and the bridging frame 79e push together; in addition, the push driver 79c can be a cylinder or a hydraulic cylinder, but is not limited to this.

[0051] Compared with the existing technology, by using the design of "a horizontal turntable 10b mounted on the frame 10a, multiple support seats 20 arranged on the horizontal turntable 10b and spaced apart along the rotation direction of the horizontal turntable 10b for supporting the motor housing 210, and shaft core pressing mechanism 30, motor housing loading robot 40a, riveting mechanism 50a, laser welding mechanism 50b and finished product unloading robot 60a mounted on the frame 10a and arranged sequentially above the horizontal turntable 10b along the rotation direction of the horizontal turntable 10b", and in conjunction with the design of "a shaft core feeding mechanism 70 located outside the horizontal turntable 10b and mounted on the frame 10a next to the shaft core pressing mechanism 30, and a motor housing feeding mechanism 40b located outside the horizontal turntable 10b and mounted on the frame 10a next to the motor housing loading robot 40a", the centering between the motor housing 210 and the shaft core 220 is achieved (see status). Figure 4 After centering, the motor housing 210 is riveted together with the shaft core 220. The motor housing 210 and shaft core 220 are laser welded together to obtain the finished product 200 and the finished product 200 is automatically unloaded.

[0052] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are within the scope of the present invention.

Claims

1. A motor housing automatic riveting machine characterized by, The machine rack, the horizontal turntable, the plurality of bearing seats for motor shell, the shaft core transfer pressure mechanism, the motor shell loading manipulator, the rivet pressing mechanism, the laser welding mechanism and the finished product unloading manipulator, the shaft core feeding mechanism, the motor shell feeding mechanism, the finished product unloading outer conveying line and the dynamic balance mechanism are arranged on the machine rack.

2. The motor case automatic riveting machine according to claim 1, wherein The dynamic balance mechanism includes the mechanism frame, the dynamic balance motor, the driving pulley, the driven pulley, the belt, the linear driver, the dynamic balance detector and the sleeving seat.

3. The motor case automatic riveting machine according to claim 2, wherein, The finished product unloading manipulator includes the manipulator frame, the transverse movement driver, the transverse movement seat, the up-down driver, the up-down sliding seat, the first pick-and-place assembly and the second pick-and-place assembly.

4. The motor case automatic riveting machine according to claim 1 or 2, characterized by, The motor shell feeding mechanism includes the vibrating screening disc, the conveying groove, the straight vibrator and the receiving limiting seat.

5. The motor case automatic riveting machine according to claim 1 or 2, characterized by, The receiving limiting seat is provided with the receiving limiting groove matched with the motor shell.

6. The motor case automatic riveting machine according to claim 1 or 2, characterized by, The bearing seat comprises a seat body, a model head slidably arranged in the seat body and sleeved with a motor shell and a shaft core, a fixed top rod fixed to the seat body and having an upper end extending into the model head from the center of the model head, and a first spring arranged between the seat body and the model head, a guide column slidably penetrating the horizontal turntable is further arranged on the seat body, the guide column is sleeved with a second spring, an abutting structure for the lower end of the second spring to elastically abut is arranged on the guide column, a guide sleeve slidably matched with the guide column is arranged on the horizontal turntable, and the upper end of the second spring elastically abuts against the guide sleeve.

7. The motor case automatic riveting machine of claim 6, wherein, The press riveting mechanism comprises a mechanism frame body, a press riveting driver arranged on the mechanism frame body and located above the bearing seat, a pressure sensor located below the press riveting driver and connected with the press riveting driver, an upper die head located below the pressure sensor and connected with the pressure sensor, a top pressing ring slidably arranged relative to the upper die head and located above the model head, a third spring arranged between the top pressing ring and the upper die head, an upper top rod located below the guide column and slidably arranged, and a linkage driver arranged on the mechanism frame body and used for driving the upper top rod to slide up and down, a linkage slope is arranged between the output end of the linkage driver and the upper top rod.

8. The motor case automatic riveting machine according to claim 1 or 2, characterized by, The shaft core rotating and pressing mechanism comprises a mechanism bone body arranged on the frame, a horizontal driver arranged on the mechanism bone body, a receiving slide arranged on the horizontal driver, a vertical driver arranged above the receiving slide and connected with the mechanism bone body, a lower top rod arranged above the receiving slide and connected with the vertical driver, and a cross seat arranged above the receiving slide and connected with the mechanism bone body, an entering pipe for the shaft core to enter is arranged on the cross seat, and a passing channel for the lower top rod to pass through the cross seat is arranged on the cross seat.

9. The motor case automatic riveting machine according to claim 1 or 2, characterized by, The shaft core feeding mechanism comprises upper and lower frame bodies, a magazine, a receiving seat, a receiving driver, a feeding control bin, a lifting driver, a rotating driver and a suction head, which are respectively located above the shaft core rotating and pressing mechanism, the feeding control bin is assembled on the upper and lower frame bodies and is provided with an upper inlet through which the shaft core falls horizontally into the feeding control bin, the feeding control bin is further provided with an external delivery pipe for delivering the horizontally placed shaft core in the feeding control bin to the shaft core rotating and pressing mechanism, the receiving seat is located above the feeding control bin and is slidably arranged on the upper and lower frame bodies, the receiving driver is assembled on the upper and lower frame bodies and is connected with the receiving seat, the receiving driver drives the receiving seat to open or close the upper inlet, the suction head is located above the upper inlet, the rotating driver is located above the suction head and is connected with the suction head, the lifting driver is located above the rotating driver and is connected with the rotating driver, and the lifting driver is assembled on the upper and lower frame bodies; the magazine is located above the receiving seat and is assembled on the upper and lower frame bodies, the magazine orderly transfers the sorted shaft core to the receiving seat, and the receiving seat delivers the shaft core delivered from the magazine to the upper inlet under the driving of the receiving driver; the upper and lower frame bodies are provided with a CCD device for detecting the orientation of the shaft core on the receiving seat.

10. The motor case automatic riveting machine of claim 9, wherein, The magazine has a sorting cavity with an upward cavity opening and a discharge channel in communication with the sorting cavity for discharging the shaft core one by one, the cavity bottom surface of the sorting cavity is an inclined surface for downward inclined conveying of the shaft core, the first side surface of the sorting cavity is an upper and lower side surface adjacent to the lower end of the cavity bottom surface in the direction of downward inclined conveying of the shaft core, and the discharge channel is in communication with the sorting cavity at the first side surface and the cavity bottom surface; the magazine is provided with a pushing head horizontally arranged in the magazine and a reset spring sleeved in the pushing head, the reset spring constantly drives the pushing head to slide in the direction of retracting into the first side surface, the pushing head is exposed outside the sorting cavity and the magazine, the pushing head is opposite to the lower end of the cavity bottom surface, and the pushing head is adjacent to the discharge channel, the magazine is provided with a pushing driver outside the magazine for driving the pushing head to slide in the direction close to the cavity bottom surface; the feeding control bin is provided with a pushing and suction head arranged opposite to the external delivery pipe and used for delivering the shaft core entering the feeding control bin into the external delivery pipe, and a sliding driver for driving the pushing and suction head to slide.

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