Motorcycle crankshaft sprocket press-in device

Abstract

The utility model discloses a kind of motorcycle crankshaft chain wheel press-in device, comprising: rack;Dialing component, for dialing connecting rod to specific position;Crankshaft positioning assembly, for placing and positioning crankshaft;Moving assembly, for sending crankshaft positioning assembly to loading station or press-fitting station;First mechanical hand, for sending crankshaft to dialing component, and sending crankshaft to the crankshaft positioning assembly of loading station;Chain wheel feeding assembly, for sending chain wheel to handling station;Visual component, for identifying the attitude of chain wheel;Second mechanical hand, for sending the chain wheel of handling station to visual component and posture identification, and sending chain wheel to press-fitting station;Press-fitting assembly, for pressing chain wheel of press-fitting station to crankshaft;Control system, with dialing component, crankshaft positioning assembly, moving assembly, first mechanical hand, chain wheel feeding assembly, visual component, second mechanical hand and press-fitting assembly connection.The utility model realizes the automatic press-fitting of crankshaft chain wheel, and precision and efficiency are high.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, and in particular relates to a motorcycle crankshaft sprocket pressing device. Background Technology

[0002] The crankshaft is a key transmission component in an engine. When the engine is running, the piston reciprocates within the cylinder, transmitting force to the crankshaft's connecting rod journals via the connecting rod. This causes the crankshaft to rotate around the main journals, converting the piston's reciprocating motion into rotational motion to provide power to the vehicle. The engine's combined crankshaft is formed by pressing together the left and right half-crankshafts, crank pins, and connecting rods. Needle roller bearings are mounted on the main journals of both half-shafts to support the crankshaft on the crankcase. The flywheel, magneto, and clutch drive gear are respectively mounted at both ends of the crankshaft.

[0003] Currently, the pressing of crankshaft sprockets generally involves manually loading the material, placing it in the correct pressing position, and calibrating the angle. Then, the pressing is completed by a hydraulic cylinder or pneumatic cylinder. Manual loading and alignment is time-consuming, labor-intensive, and costly. In mass production, worker fatigue can easily lead to an increased product defect rate, resulting in cost losses, defective products, and other issues. The pressing efficiency of sprockets is relatively low. Utility Model Content

[0004] The purpose of this invention is to provide a motorcycle crankshaft sprocket pressing device that enables automatic pressing of the crankshaft sprocket with high precision and efficiency.

[0005] This utility model is achieved through the following technical solution: A motorcycle crankshaft sprocket pressing device includes: frame; A toggle assembly, mounted on the frame, is used to move the connecting rod on the crankshaft to a specific position; Crankshaft positioning assembly, used for placing and positioning the crankshaft; The moving component is mounted on the frame and connected to the crankshaft positioning component, and is used to deliver the crankshaft positioning component to the loading station or the pressing station. The first robotic arm is used to feed the crankshaft to the actuation assembly and to feed the crankshaft on the actuation assembly to the crankshaft positioning assembly located at the loading station; The sprocket feeding assembly is mounted on the frame and is used to feed the sprocket to the handling station. Vision component, used to identify the sprocket's posture; The second robotic arm, mounted on the frame, is used to deliver the sprocket from the handling station to the vision component for attitude recognition, and then deliver the sprocket to the pressing station in a specific attitude; Press-fit assembly, used to press the sprocket of the press-fit station onto the crankshaft; The control system is connected to the actuation assembly, crankshaft positioning assembly, movement assembly, first robot, sprocket feeding assembly, vision assembly, second robot and pressing assembly respectively.

[0006] Furthermore, the moving component is provided with a carrying plate, and two guide posts are spaced apart on the carrying plate. The crankshaft positioning component is slidably mounted on the two guide posts, and springs are sleeved on the guide posts. The springs are connected to the crankshaft positioning component and the carrying plate respectively. The carrying plate is provided with a sprocket seat for placing and positioning sprockets.

[0007] Furthermore, the crankshaft positioning assembly includes a crankshaft positioning plate and a push cylinder disposed on one side of the crankshaft positioning plate. The two ends of the crankshaft positioning plate are slidably disposed on two guide pillars respectively. A clamping plate is provided on the telescopic end of the push cylinder, and a groove is provided on the clamping plate to fit the clearance of the crankshaft.

[0008] Furthermore, the moving component includes a track, a slide base, and a drive mechanism. The track is mounted on the frame, the slide base is slidably mounted on the track, and the drive mechanism is connected to the slide base to drive the slide base to move along the track. The carrying plate is mounted on the slide base.

[0009] Furthermore, the press assembly includes a servo press-in cylinder, a pressure plate, and a press head. The telescopic end of the servo press-in cylinder is connected to the pressure plate, and the press head is located at the bottom of the pressure plate.

[0010] Furthermore, the press assembly also includes a support base, a servo press-in electric cylinder is set on the top of the support base, the top of the support base has a first through hole for the telescopic end of the servo press-in electric cylinder to pass through, the pressure plate has two guide rods, and the top of the support base has guide holes that slide in contact with the two guide rods respectively.

[0011] Furthermore, the actuation assembly includes a support platform, a limiting block, a rotating mechanism, a rotating rod, and a lever. The support platform is mounted on the frame, the limiting block is mounted on the support platform, and the limiting block is provided with a connecting rod limiting groove. A second crankshaft positioning plate is provided on one side of the support platform. The rotating mechanism is located below the second crankshaft positioning plate and mounted on the support platform. One end of the rotating rod is connected to the rotating mechanism, and the other end is perpendicularly connected to the lever.

[0012] Furthermore, the vision component includes a mounting bracket, a camera, and a light source bracket. The mounting bracket is mounted on the press-fit assembly, the camera is mounted on the mounting bracket, and a vision light source is provided at the bottom of the light source bracket. Both the light source bracket and the vision light source have a second through hole. The light source is mounted on the mounting bracket, and the camera passes through the light source bracket and the vision light source through the second through hole.

[0013] Compared with the prior art, the advantages of this utility model are: it can realize automatic feeding of crankshaft and sprocket, and enable automatic assembly of crankshaft and sprocket. It is easy to operate, firmly pressed, highly accurate, highly efficient, and has good quality consistency in large-scale production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the motorcycle crankshaft sprocket pressing device of this utility model; Figure 2 This is a front view of the motorcycle crankshaft sprocket pressing device of this utility model; Figure 3 for Figure 1 Enlarged schematic diagram of part A; Figure 4 for Figure 1 Enlarged diagram of part B; Figure 5 for Figure 2 Enlarged schematic diagram of part C; Figure 6 This is a schematic diagram of the actuating component in the motorcycle crankshaft sprocket pressing device of this utility model.

[0015] In the diagram, 10-frame, 20-actuating assembly, 21-support platform, 22-limit block, 23-rotation mechanism, 24-rotating rod, 25-lever, 26-limiting groove, 30-crankshaft positioning assembly, 31-crankshaft positioning plate, 32-push cylinder, 33-clamping plate, 40-moving assembly, 41-track, 42-slide base, 43-drive mechanism, 50-first robot arm, 60-sprocket feeding assembly, 70-vision assembly, 71-mounting bracket, 72-camera, 73-light source bracket, 80-second robot arm, 90-pressing assembly, 91-servo press-in cylinder, 92-pressure plate, 93-pressure head, 94-support base, 95-guide rod, 100-carrying plate, 110-guide column, 120-spring, 130-sprocket seat. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the motorcycle crankshaft sprocket pressing device of this utility model. Figure 2This is a front view of the motorcycle crankshaft sprocket pressing device of this utility model. A motorcycle crankshaft sprocket pressing device includes a frame 10, an actuating assembly 20, a crankshaft positioning assembly 30, a moving assembly 40, a first robotic arm 50, a sprocket feeding assembly 60, a vision assembly 70, a second robotic arm 80, a pressing assembly 90, and a control system. The actuating assembly 20 is mounted on the frame 10 and is used to actuate the connecting rod on the crankshaft to a specific position. The crankshaft positioning assembly 30 is used to place and position the crankshaft. The moving assembly 40 is mounted on the frame 10 and connected to the crankshaft positioning assembly 30, used to deliver the crankshaft positioning assembly 30 to a loading station or a pressing station. The first robotic arm 50 is used to deliver the crankshaft to the actuating assembly 20 and to deliver the crankshaft on the actuating assembly 20 to the pressing station. Located on the crankshaft positioning assembly 30 at the loading station, the sprocket feeding assembly 60 is mounted on the frame 10 to deliver the sprocket to the handling station. The vision assembly 70 is used to identify the sprocket's posture. The second robot 80 is mounted on the frame 10 to deliver the sprocket from the handling station to the vision assembly 70 for posture recognition. Then, the sprocket is delivered to the pressing station in a specific posture. The pressing assembly 90 is used to press the sprocket from the pressing station onto the crankshaft. The control system is connected to the actuation assembly 20, the crankshaft positioning assembly 30, the moving assembly 40, the first robot 50, the sprocket feeding assembly 60, the vision assembly 70, the second robot 80, and the pressing assembly 90 to control the actions of each assembly and the robot.

[0022] In use, the motorcycle crankshaft sprocket pressing device of this utility model controls the first robotic arm 50 to deliver the crankshaft to the actuating component 20. The actuating component 20 moves the connecting rod on the crankshaft to a specific position, fixing the relative position of the connecting rod and the crankshaft, preparing for the subsequent pressing of the sprocket. The control moving component 40 delivers the crankshaft positioning component 30 to the loading station to wait. Then, the first robotic arm 50 flips and transports the crankshaft, with the relative position of the connecting rod fixed on the actuating component 20, to the crankshaft positioning component 30 located at the loading station. The moving component 40 then delivers the crankshaft positioning component 30 to the pressing station. During this process, the sprocket feeding component 60 delivers the sprocket to the handling station. Then, the second robotic arm 80 delivers the sprocket from the handling station to the vision component 70 for attitude recognition. Specifically, the vision component 70 takes a picture of the sprocket, and the control system analyzes the picture to determine the sprocket attitude and the angle that the sprocket needs to be adjusted. The sprocket feeding assembly 60 is an existing product, generally including several guide cylinders for storing sprockets, with cylinders installed below the guide cylinders. The cylinders push the sprockets that fall from the guide cylinders to the target position. The sprocket feeding assembly 60 can be purchased directly from the market. Then, a second robotic arm 80 delivers the sprockets to the pressing station in a specific posture, ensuring the pressing angle between the sprockets and the crankshaft is appropriate. Finally, the pressing assembly 90 presses the sprockets from the pressing station onto the crankshaft of the crankshaft positioning assembly 30, completing the automated assembly of the crankshaft and sprockets. This invention enables automatic feeding of the crankshaft and sprockets, and automatic assembly of the crankshaft and sprockets. It is easy to operate, provides firm pressing, high precision, high pressing efficiency, and good quality consistency in large-scale production.

[0023] Please refer to the following: Figure 3 , Figure 3 for Figure 1 A magnified schematic diagram of part A. In one embodiment, the moving component 40 is provided with a carrying plate 100, and two guide posts 110 are provided on the carrying plate 100 at intervals. The crankshaft positioning component 30 is slidably disposed on the two guide posts 110. Springs 120 are sleeved on the guide posts 110. The springs 120 are respectively connected to the crankshaft positioning component 30 and the carrying plate 100. The carrying plate 100 is provided with a sprocket seat 130 for placing and positioning sprockets. The sprocket seat 130 is located below the crankshaft positioning assembly 30 and moves with the crankshaft positioning assembly 30. After the sprocket seat 130 moves to the pressing station, the second robot arm 80 sends the sprocket onto the sprocket seat 130. Then, the pressing assembly 90 presses it down, causing the crankshaft positioning assembly 30 to overcome the elastic force of the spring 120, thereby causing the crankshaft to move downward and insert the sprocket, completing the pressing of the crankshaft sprocket. After the pressing is completed, the pressing assembly 90 moves upward, and the elastic force of the spring 120 restores the crankshaft positioning assembly 30 to its original position, waiting for the next pressing.

[0024] In one embodiment, the crankshaft positioning assembly 30 includes a crankshaft positioning plate 31 and a push cylinder 32 disposed on one side of the crankshaft positioning plate 31. The two ends of the crankshaft positioning plate 31 are slidably mounted on two guide posts 110. A clamping plate 33 is provided on the telescopic end of the push cylinder 32, and the clamping plate 33 has a groove that fits clearanceably with the crankshaft. The crankshaft positioning plate 31 has a first placement groove for placing the crankshaft. During operation, a first robotic arm 50 places the crankshaft on the first placement groove of the crankshaft positioning plate 31, making the crankshaft vertically positioned with the small end of the connecting rod on the crankshaft away from the clamping plate 33. Then, the push cylinder 32 pushes the clamping plate 33 to move, causing the groove on the clamping plate 33 to fit clearanceably with the crankshaft, achieving a clamping effect and precision.

[0025] In one embodiment, the moving component 40 includes a track 41, a slide base 42, and a drive mechanism 43. The track 41 is mounted on the frame 10, the slide base 42 is slidably mounted on the track 41, and the drive mechanism 43 is connected to the slide base 42 for driving the slide base 42 to move along the track 41. The carrying plate 100 is mounted on the slide base 42. The drive mechanism 43 can adopt an existing linear servo drive structure, such as the Linerunit CS series products.

[0026] Please refer to the following: Figure 5 , Figure 5 for Figure 2 A magnified schematic diagram of part C is shown. In one embodiment, the press-fit assembly 90 includes a servo press-fit cylinder 91, a pressure plate 92, and a press head 93. The telescopic end of the servo press-fit cylinder 91 is connected to the pressure plate 92, and the press head 93 is located at the bottom of the pressure plate 92. By extending and retracting the telescopic end of the press-fit cylinder, the pressure plate 92 and the press head 93 are moved vertically, thereby pressing the sprocket to the crankshaft through the press head 93. By using the servo press-fit cylinder 91, digital monitoring can be performed during the press-fit process, accurately outputting the press-fit torque and controlling the press-fit distance to achieve the required process accuracy. Furthermore, a display screen can be set on the control system to display the press-fit torque and press-fit distance during the press-fit process. In one embodiment, the press assembly 90 further includes a support base 94, and a servo press-in cylinder 91 is disposed on the top of the support base 94. The top of the support base 94 has a first through hole through which the telescopic end of the servo press-in cylinder 91 passes. The pressure plate 92 is provided with two guide rods 95, and the top of the support base 94 has guide holes that slide in contact with the two guide rods 95 respectively. The movement direction of the pressure plate 92 and the press head 93 is further restricted by the guidance of the two guide rods 95.

[0027] Please refer to the following: Figure 6 , Figure 6This is a schematic diagram of the actuating assembly in the motorcycle crankshaft sprocket pressing device of this utility model. In one embodiment, the actuating assembly 20 includes a support platform 21, a limiting block 22, a rotating mechanism 23, a rotating rod 24, and a lever 25. The support platform 21 is mounted on the frame 10, and the limiting block 22 is mounted on the support platform 21. The limiting block 22 has a connecting rod limiting groove 26. A second crankshaft positioning plate 31 is provided on one side of the support platform 21. The rotating mechanism 23 is located below the second crankshaft positioning plate 31 and mounted on the support platform 21. One end of the rotating rod 24 is connected to the rotating mechanism 23, and the other end is perpendicularly connected to the lever 25. In use, the rotating mechanism 23 drives the rotating rod 24 to rotate, and the rotating rod 24 drives the lever 25 to move, so that the lever 25 contacts the connecting rod on the crankshaft and moves the small end of the connecting rod to the connecting rod limiting groove 26 of the limiting block 22, thereby achieving the purpose of limiting the angle of the connecting rod and fixing the relative position of the connecting rod and the crankshaft.

[0028] Please refer to the following: Figure 4 , Figure 4 for Figure 1 A magnified schematic diagram of part B. In one embodiment, the vision component 70 includes a mounting bracket 71, a camera 72, and a light source bracket 73. The mounting bracket 71 is disposed on the press-fit assembly 90, the camera 72 is disposed on the mounting bracket 71, and a vision light source is provided at the bottom of the light source bracket 73. Both the light source bracket 73 and the vision light source have second through holes. The light source is mounted on the mounting bracket 71, and the camera 72 passes through the light source bracket 73 and the vision light source through the second through holes. The camera 72 is used to take pictures, and the vision light source is used for supplementary lighting, which can eliminate environmental interference and improve image quality.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A motorcycle crankshaft sprocket pressing device, characterized in that, include: frame; A toggle assembly, mounted on a frame, is used to move a connecting rod on a crankshaft to a specific position; A crankshaft positioning assembly for placing and positioning a crankshaft; A movable component, which is mounted on a frame and connected to a crankshaft positioning component, is used to deliver the crankshaft positioning component to a loading station or a pressing station. A first robotic arm is used to deliver the crankshaft to the actuation assembly and to deliver the crankshaft on the actuation assembly to the crankshaft positioning assembly located at the loading station. A sprocket feeding assembly, which is mounted on the frame, is used to feed sprockets to the handling station; A vision component for identifying the orientation of the sprocket; The second robotic arm, mounted on the frame, is used to deliver the sprocket of the transport station to the vision component for attitude recognition, and then deliver the sprocket to the pressing station in a specific attitude; A press-fit assembly for pressing the sprocket of the press-fit station onto the crankshaft; The control system is connected to the actuation assembly, crankshaft positioning assembly, movement assembly, first robot arm, sprocket feeding assembly, vision assembly, second robot arm and pressing assembly respectively.

2. The motorcycle crankshaft sprocket pressing device according to claim 1, characterized in that, The moving component is provided with a carrying plate, and two guide posts are spaced apart on the carrying plate. The crankshaft positioning component is slidably mounted on the two guide posts. Springs are sleeved on the guide posts. The springs are connected to the crankshaft positioning component and the carrying plate respectively. The carrying plate is provided with a sprocket seat for placing and positioning sprockets.

3. The motorcycle crankshaft sprocket pressing device according to claim 2, characterized in that, The crankshaft positioning assembly includes a crankshaft positioning plate and a push cylinder disposed on one side of the crankshaft positioning plate. The two ends of the crankshaft positioning plate are slidably disposed on two guide pillars respectively. The extension end of the push cylinder is provided with a clamping plate, and the clamping plate is provided with a groove that fits the crankshaft clearance.

4. The motorcycle crankshaft sprocket pressing device according to claim 2, characterized in that, The moving component includes a track, a slide base, and a drive mechanism. The track is mounted on the frame, the slide base is slidably mounted on the track, and the drive mechanism is connected to the slide base to drive the slide base to move along the track. The loading plate is mounted on the slide base.

5. The motorcycle crankshaft sprocket pressing device according to claim 1, characterized in that, The pressing assembly includes a servo pressing cylinder, a pressure plate, and a pressing head. The telescopic end of the servo pressing cylinder is connected to the pressure plate, and the pressing head is located at the bottom of the pressure plate.

6. The motorcycle crankshaft sprocket pressing device according to claim 5, characterized in that, The press assembly also includes a support base. The servo press-in electric cylinder is located on the top of the support base. The top of the support base has a first through hole through which the telescopic end of the servo press-in electric cylinder passes. The pressure plate is provided with two guide rods. The top of the support base has guide holes that slide in contact with the two guide rods respectively.

7. The motorcycle crankshaft sprocket pressing device according to claim 1, characterized in that, The actuation assembly includes a support platform, a limiting block, a rotating mechanism, a rotating rod, and a lever. The support platform is mounted on the frame, the limiting block is mounted on the support platform, and the limiting block has a connecting rod limiting groove. A second crankshaft positioning plate is provided on one side of the support platform. The rotating mechanism is located below the second crankshaft positioning plate and mounted on the support platform. One end of the rotating rod is connected to the rotating mechanism, and the other end is perpendicularly connected to the lever.

8. The motorcycle crankshaft sprocket pressing device according to claim 1, characterized in that, The vision component includes a mounting bracket, a camera, and a light source bracket. The mounting bracket is mounted on the press-fit assembly, the camera is mounted on the mounting bracket, and a vision light source is provided at the bottom of the light source bracket. Both the light source bracket and the vision light source have a second through hole. The light source is mounted on the mounting bracket, and the camera passes through the light source bracket and the vision light source through the second through hole.

Images