Motorcycle crankshaft bearing press-in device

Abstract

The utility model discloses a kind of motorcycle crankshaft bearing press-in devices, comprising: rack;Pressing assembly;Crankshaft positioning assembly, for positioning and fixed crankshaft;Moving assembly, for sending crankshaft positioning assembly to first feeding station or pressing station;First mechanical hand, for sending crankshaft to the crankshaft positioning assembly on located first feeding station;Bearing feeding assembly, for sending bearing to handling station;Visual component, for identifying the attitude of bearing;Second mechanical hand, for sending the bearing of handling station to the below of visual component, and bearing is sent to the second feeding station of pressing assembly with specific attitude;Control system is connected with respectively crankshaft positioning assembly, moving assembly, first mechanical hand, bearing feeding assembly, visual component, second mechanical hand and pressing assembly;Pressing assembly is used to press the bearing of second feeding station to the crankshaft on located pressing station.The utility model realizes the automatic pressing of crankshaft bearing, 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 bearing press-in 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 bearings generally involves manually loading the material, placing it in the correct pressing position, and calibrating the angle. Then, the pressing is completed using 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 increased product defect rates, resulting in cost losses, defective products, and other issues. As a result, the efficiency of bearing pressing is relatively low. Utility Model Content

[0004] The purpose of this invention is to provide a motorcycle crankshaft bearing press-fit device that enables automatic press-fitting of crankshaft bearings with high precision and efficiency.

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

[0006] Furthermore, the crankshaft positioning assembly includes a support and a crankshaft positioning plate disposed on the support, the crankshaft positioning plate being provided with a clamping mechanism for fixing or releasing the crankshaft.

[0007] Furthermore, the clamping mechanism includes two clamping cylinders located on both sides of the crankshaft positioning plate and respectively mounted on the support. The telescopic end of the clamping cylinder is provided with a first clamping chuck.

[0008] Furthermore, the crankshaft positioning plate is provided with a first mounting plate, and the first mounting plate has two guide grooves arranged radially along the crankshaft. The opening of the guide groove faces the crankshaft, and a second clamping chuck is slidably provided in the guide groove. A first threaded hole is provided on the side of the guide groove away from the opening, and an adjusting bolt is threadedly connected to the first threaded hole. The adjusting bolt is connected to the second clamping chuck.

[0009] Furthermore, an adjusting nut is provided at the position where the adjusting bolt is located within the guide groove.

[0010] Furthermore, the crankshaft positioning assembly also includes a guide bolt, a first elongated hole is provided on the second clamping chuck, a second threaded hole is provided at the bottom of the guide groove, the guide bolt passes through the first elongated hole and is threadedly connected to the second threaded hole, and a second elongated hole is provided at the upper part of the first elongated hole for accommodating the head of the guide bolt.

[0011] Furthermore, the press-fitting assembly includes a servo press-fitting cylinder, a pressure plate, a bearing housing, and a fixing mechanism. The telescopic end of the servo press-fitting cylinder is connected to the pressure plate. The bearing housing is located at the bottom of the pressure plate, and the fixing mechanism is located on the pressure plate to fix the bearing on the bearing housing.

[0012] Furthermore, the fixing mechanism includes a second mounting plate, a fixing cylinder, and a bearing support plate. The second mounting plate is mounted on the pressure plate, the fixing cylinder is mounted on the second mounting plate, and the bearing support plate is mounted on the telescopic end of the fixing cylinder for contacting the bottom of the bearing.

[0013] 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.

[0014] Compared with the existing technology, the advantages of this utility model are: it can realize automatic feeding of crankshafts and bearings, and enable automatic assembly of crankshafts and bearings. It is easy to operate, firmly pressed, highly accurate, highly efficient, and has good quality consistency in large-scale production. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of the motorcycle crankshaft bearing press-in device of this utility model; Figure 2 This is a front view of the motorcycle crankshaft bearing press-in device of this utility model; Figure 3 for Figure 1 Enlarged schematic diagram of part A; Figure 4 for Figure 2 Enlarged diagram of part B.

[0016] In the diagram, 1-frame, 2-pressing assembly, 21-servo press-in cylinder, 22-pressure plate, 23-bearing seat, 24-fixing mechanism, 241-second mounting plate, 242-fixing cylinder, 243-bearing support plate, 3-crankshaft positioning assembly, 31-crankshaft positioning plate, 32-clamping cylinder, 33-first clamping chuck, 34-first mounting plate, 35-second clamping chuck, 36-adjusting bolt, 37-adjusting nut, 38-guide bolt, 39-support, 4-moving assembly, 41-track, 42-slide base, 43-drive mechanism, 5-first robot arm, 6-bearing feeding assembly, 7-vision assembly, 8-second robot arm, 9-control system. Detailed Implementation

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the motorcycle crankshaft bearing press-in device of this utility model. Figure 2This is a front view of the motorcycle crankshaft bearing press-in device of this utility model. A motorcycle crankshaft bearing press-in device includes a frame 1, a press-in assembly 2, a crankshaft positioning assembly 3, a moving assembly 4, a first robotic arm 5, a bearing feeding assembly 6, a vision assembly 7, a second robotic arm 8, and a control system 9. The crankshaft positioning assembly 3 is used to position and fix the crankshaft. The moving assembly 4 is mounted on the frame 1 and connected to the crankshaft positioning assembly 3, used to deliver the crankshaft positioning assembly 3 to a first loading station or a press-in station. The first robotic arm 5 is used to deliver the crankshaft to the crankshaft positioning assembly 3 located at the first loading station. The bearing feeding assembly 6 is located on one side of the frame 1, used to deliver the bearing in a specific posture to a handling station. The vision assembly 7 is used to identify the posture of the bearing. The press-in assembly... The machine 2 is equipped with a second loading station for placing bearings. The second robot arm 8 is mounted on the frame 1 and is used to send the bearings from the handling station to the vision component 7 for posture recognition. Then, the bearings are sent to the second loading station of the pressing component 2 in a specific posture. The pressing component 2 is used to press the bearings from the second loading station onto the crankshaft located at the pressing station. The control system 9 is connected to the crankshaft positioning component 3, the moving component 4, the first robot arm 5, the bearing feeding component 6, the vision component 7, the second robot arm 8 and the pressing component 2 respectively, and is used to control the operation of the crankshaft positioning component 3, the moving component 4, the first robot arm 5, the bearing feeding component 6, the vision component 7, the second robot arm 8 and the pressing component 2.

[0023] In use, the motorcycle crankshaft bearing pressing device of this utility model involves controlling the moving component 4 to send the crankshaft positioning component 3 to the first loading station to wait. Then, the first robotic arm 5 places the assembled semi-finished crankshaft onto the crankshaft positioning component 3, and the moving component 4 then sends the crankshaft positioning component 3 with the crankshaft to the pressing station. During this process, the bearing feeding component 6 sends the bearing to the handling station, where the second robotic arm 8 sends the bearing from the handling station to below the vision component 7. The vision component 7 identifies the bearing's posture by taking a picture of the bearing, and the control system 9 analyzes the picture to determine the bearing's posture and the angle that needs to be adjusted. The bearing feeding component 6 is an existing product, generally including several guide cylinders for storing bearings, and a cylinder is set below the guide cylinders to push the bearing that falls from the guide cylinder to the target position. The bearing feeding component 6 can be purchased directly from the market. Then, the second robotic arm 8 delivers the bearing to the second loading station of the pressing assembly 2 in a specific posture, ensuring that the pressing angle of the bearing matches that of the crankshaft at the pressing station. Finally, the pressing assembly 2 is controlled to press the bearing from the second loading station onto the crankshaft of the crankshaft positioning assembly 3, completing the automated assembly of the crankshaft and bearing. This invention enables automatic loading of the crankshaft and bearing, and automatic assembly of the crankshaft and bearing. It is easy to operate, provides firm pressing, high precision, high pressing efficiency, and good quality consistency in large-scale production.

[0024] Please refer to the following: Figure 3 , Figure 3 for Figure 1 A magnified schematic diagram of part A. In one embodiment, the crankshaft positioning assembly 3 includes a support 39 and a crankshaft positioning plate 31 disposed on the support 39. The crankshaft positioning plate 31 is provided with a clamping mechanism for fixing or releasing the crankshaft. The crankshaft positioning plate 31 is provided with a first placement groove for placing the crankshaft. During operation, the crankshaft is placed against the first placement groove of the crankshaft positioning plate 31 by a first robotic arm 5, so that the crankshaft is placed vertically. Then, the clamping mechanism fixes the crankshaft on the crankshaft positioning plate 31 to prevent the crankshaft from moving. After pressing is completed, the clamping mechanism is controlled to release the crankshaft, and the crankshaft can be removed from the crankshaft positioning plate 31. In one embodiment, the clamping mechanism includes two clamping cylinders 32, which are located on both sides of the crankshaft positioning plate 31 and are respectively disposed on the support 39. The telescopic end of the clamping cylinder 32 is provided with a first clamping chuck 33. By extending and retracting the clamping cylinder 32, the first clamping chuck 33 is controlled to abut against or move away from the crankshaft, thereby fixing or releasing the crankshaft. In one embodiment, the crankshaft positioning plate 31 is provided with a first mounting plate 34, which has two guide grooves arranged radially along the crankshaft. The openings of the guide grooves face the crankshaft, and a second clamping chuck 35 is slidably disposed within the guide grooves. A first threaded hole is provided on the side of the guide groove away from the opening, and an adjusting bolt 36 is threadedly connected to the first threaded hole. The adjusting bolt 36 is connected to the second clamping chuck 35. Rotating the adjusting bolt 36 controls the length of the second clamping chuck 35 extending out of the guide groove, so that the second clamping chuck 35 contacts the crankshaft, thereby making the crankshaft positioning assembly 3 suitable for fixing crankshafts of different specifications. In one embodiment, an adjusting nut 37 is provided at the position of the adjusting bolt 36 within the guide groove. After the position of the second clamping chuck 35 is adjusted, rotating the adjusting nut 37 causes the adjusting nut 37 to abut against the guide groove and be fixed to the adjusting bolt 36.

[0025] In one embodiment, the crankshaft positioning assembly 3 further includes a guide bolt 38. A first elongated hole is provided on the second clamping chuck 35, and a second threaded hole is provided at the bottom of the guide groove. The guide bolt 38 passes through the first elongated hole and is threaded into the second threaded hole. A second elongated hole is provided above the first elongated hole to accommodate the head of the guide bolt 38. By cooperating with the first and second elongated holes, the movement direction of the second clamping chuck 35 is restricted, ensuring that the second clamping chuck 35 moves radially along the crankshaft.

[0026] Please refer to the following: Figure 4 , Figure 4 for Figure 2The diagram shows an enlarged view of part B. In one embodiment, the pressing assembly 2 includes a servo pressing cylinder 21, a pressure plate 22, a bearing seat 23, and a fixing mechanism 24. The telescopic end of the servo pressing cylinder 21 is connected to the pressure plate 22. The bearing seat 23 is located at the bottom of the pressure plate 22, and the fixing mechanism 24 is located on the pressure plate 22 to fix the bearing on the bearing seat 23. The bearing seat 23 is provided with a second placement groove for placing the bearing, which is the second loading station of the pressing assembly 2. After the bearing is placed in the bearing seat 23, it is fixed by the fixing mechanism 24 to prevent the bearing from falling off the bearing seat 23. By using the servo pressing cylinder 21, digital monitoring can be performed during the pressing process, accurately outputting the pressing torque and controlling the pressing distance to meet the process requirements. Furthermore, a display screen can be set on the control system 9 to display the pressing torque and pressing distance during the pressing process. In one embodiment, the fixing mechanism 24 includes a second mounting plate 241, a fixing cylinder 242, and a bearing support plate 243. The second mounting plate 241 is disposed on the pressure plate 22, the fixing cylinder 242 is disposed on the second mounting plate 241, and the bearing support plate 243 is disposed on the telescopic end of the fixing cylinder 242 for abutting against the bottom of the bearing. By extending the fixing cylinder 242, the bearing support plate 243 is moved to the bottom of the bearing seat 23 and abuts against the bottom of the bearing, thereby fixing the bearing on the bearing seat 23.

[0027] In one embodiment, the moving component 4 includes a track 41, a slide base 42, and a drive mechanism 43. The track 41 is mounted on the frame 1, 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 drive mechanism 43 can adopt an existing linear servo drive structure, such as the Linerunit CS series products.

[0028] 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 bearing press-in device, characterized in that, include: frame; Press-fit components; A crankshaft positioning assembly, used for positioning and fixing the crankshaft; A movable component, which is mounted on a frame and connected to the crankshaft positioning component, is used to deliver the crankshaft positioning component to the first loading station or to the pressing station. A first robotic arm is used to deliver the crankshaft to the crankshaft positioning assembly located at the first loading station; A bearing feeding assembly is located on one side of the frame and is used to feed the bearing to the handling station. A vision component for identifying the bearing's orientation; The second robotic arm, mounted on the frame, is used to deliver the bearing from the transport station to the vision component for attitude recognition, and then deliver the bearing in a specific attitude to the second loading station of the pressing component; The control system is connected to the crankshaft positioning assembly, the moving assembly, the first robot arm, the bearing feeding assembly, the vision assembly, the second robot arm, and the pressing assembly, respectively. The press-fit assembly is used to press-fit the bearing at the second loading station onto the crankshaft located at the press-fit station.

2. The motorcycle crankshaft bearing press-in device according to claim 1, characterized in that, The crankshaft positioning assembly includes a support and a crankshaft positioning plate disposed on the support. The crankshaft positioning plate is provided with a clamping mechanism for fixing or releasing the crankshaft.

3. The motorcycle crankshaft bearing press-in device according to claim 2, characterized in that, The clamping mechanism includes two clamping cylinders, which are located on both sides of the crankshaft positioning plate and respectively mounted on the support. The telescopic end of each clamping cylinder is provided with a first clamping chuck.

4. The motorcycle crankshaft bearing press-in device according to claim 3, characterized in that, The crankshaft positioning plate is provided with a first mounting plate, and the first mounting plate has two guide grooves arranged radially along the crankshaft. The opening of the guide groove faces the crankshaft. A second clamping chuck is slidably provided in the guide groove. A first threaded hole is provided on the side of the guide groove away from the opening. An adjusting bolt is threadedly connected to the first threaded hole. The adjusting bolt is connected to the second clamping chuck.

5. The motorcycle crankshaft bearing press-in device according to claim 4, characterized in that, An adjusting nut is provided at the position where the adjusting bolt is located within the guide groove.

6. The motorcycle crankshaft bearing press-in device according to claim 4, characterized in that, The crankshaft positioning assembly also includes a guide bolt. The second clamping chuck has a first elongated hole. The bottom of the guide groove has a second threaded hole. The guide bolt passes through the first elongated hole and is threadedly connected to the second threaded hole. The upper part of the first elongated hole has a second elongated hole for accommodating the head of the guide bolt.

7. The motorcycle crankshaft bearing press-in device according to claim 1, characterized in that, The press-fit assembly includes a servo press-fit cylinder, a pressure plate, a bearing housing, and a fixing mechanism. The telescopic end of the servo press-fit cylinder is connected to the pressure plate. The bearing housing is located at the bottom of the pressure plate, and the fixing mechanism is located on the pressure plate to fix the bearing on the bearing housing.

8. The motorcycle crankshaft bearing press-in device according to claim 7, characterized in that, The fixing mechanism includes a second mounting plate, a fixing cylinder, and a bearing support plate. The second mounting plate is disposed on the pressure plate, the fixing cylinder is disposed on the second mounting plate, and the bearing support plate is disposed on the telescopic end of the fixing cylinder for contacting the bottom of the bearing.

9. The motorcycle crankshaft bearing press-in device according to claim 1, 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.

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