Automatic turnover device for crankshaft connecting rod machining

Abstract

The utility model relates to the technical field of crankshaft connecting rod machining, and discloses an automatic turnover device for crankshaft connecting rod machining, which is provided with a fixing mechanism and a transmission mechanism, the fixing mechanism is used for clamping two ends of a workpiece to be machined, and the transmission mechanism is used for rotating the fixing mechanism, so that the problem that in the existing crankshaft connecting rod machining process, the machining efficiency is high is solved. An automatic turnover device capable of adaptively fixing a crankshaft connecting rod is generally lacked, so that a plurality of problems are caused, firstly, in a traditional machining method, an operator needs to manually adjust and fix the position of the crankshaft connecting rod to complete machining procedures at different angles, manual operation wastes time and labor, and the machining efficiency is greatly improved. The problems that in the prior art, the machining precision and the product quality are affected due to the fact that a crankshaft connecting rod is turned over manually, workpiece clamping is not firm or position deviation is easily caused by personal errors, and then the labor intensity of operators is increased, and certain potential safety hazards exist are solved.

Description

Technical Field

[0001] This utility model belongs to the field of crankshaft connecting rod processing technology, and in particular relates to an automatic flipping device for crankshaft connecting rod processing. Background Technology

[0002] The crankshaft connecting rod is a crucial mechanical component in an internal combustion engine. It connects the piston and the crankshaft, converting the reciprocating motion of the piston into the rotational motion of the crankshaft, thereby enabling the engine to output power. Specifically, when the fuel mixture in the combustion chamber is ignited, the resulting high-pressure gas pushes the piston downward. This linear motion is transmitted to the crankshaft through the connecting rod. The crankshaft, with its eccentric design, converts this reciprocating motion into rotational motion, driving the vehicle's transmission system or the working parts of mechanical equipment.

[0003] Existing crankshaft connecting rod machining processes lack an automatic tilting device for adaptively fixing the crankshaft connecting rod. The problems with this technology are as follows: Firstly, in traditional machining methods, operators need to manually adjust and fix the position of the crankshaft connecting rod to complete machining operations at different angles. This manual operation is not only time-consuming and labor-intensive, but also prone to human error leading to insecure workpiece clamping or positional deviations, thus affecting machining accuracy and product quality. Secondly, manually tilting the crankshaft connecting rod not only increases the operator's workload but also poses certain safety hazards, especially when handling large or heavy workpieces. Workers need to exert considerable physical labor, and accidents are prone to occur during frequent tilting. Furthermore, due to the lack of automated equipment, machining efficiency is difficult to significantly improve. Under traditional methods, each adjustment of the workpiece position requires a significant amount of time, which cannot meet the demands of modern high-efficiency production. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides an automatic flipping device for crankshaft connecting rod machining that can overcome or at least partially solve the above problems.

[0005] This utility model is implemented as follows: an automatic flipping device for crankshaft connecting rod processing includes a fixed base, an electric pump, a telescopic rod, a lifting plate, a mounting plate, and a flipping motor. One side surface of the fixed base is fixedly connected to the surface of the electric pump. The inner wall of the fixed base is fixedly connected to the middle surface of the telescopic rod. Both ends of the telescopic rod are fixedly connected to the lower surfaces of the two lifting plates. The upper end of the lifting plate is fixedly connected to the surface of the flipping motor. The output end of the flipping motor is drivenly connected to the surface of the mounting plate. The lower end of the mounting plate is slidably connected to the upper end of the lifting plate through a sliding groove. The lower surface of the lifting plate is slidably connected to the surface of the fixed base through a sliding groove. A fixing mechanism is provided at the upper end of the lifting plate, and a transmission mechanism is provided below the fixing mechanism.

[0006] The fixing mechanism is used to clamp both ends of the workpiece;

[0007] The transmission mechanism is used to drive the fixed mechanism.

[0008] To improve operational safety, the fixing mechanism preferably includes a clamping screw, a connecting rod, a fixing block, an elastic block, and a rubber plate. The surface of the clamping screw is threaded to the lower inner wall of the two connecting rods. The upper end of the connecting rod is fixedly connected to the lower surface of the fixing block. The upper inner wall of the fixing block is fixedly connected to the rear surface of the elastic block. The front surface of the elastic block is fixedly connected to the rear surface of the rubber plate. By rotating the clamping screw, the position of the connecting rod can be adjusted so that the fixing block and rubber plate at the top can fit against the crankshaft connecting rod surface, achieving stable clamping. At the same time, the clamping screw has a self-locking characteristic, ensuring that the workpiece will not slip due to vibration or other external forces during subsequent flipping.

[0009] To improve the synchronization of the clamping process, preferably, the transmission mechanism includes a small motor, a support rod, a driving gear, a driven gear, a fixed rod, and a connecting block. The output end of the small motor is fixedly connected to the front surface of the support rod, the surface of the support rod is fixedly connected to the inner wall of the driving gear, the tooth surface of the driving gear meshes with the tooth surface of the driven gear, the inner wall of the driven gear is fixedly connected to the surface of the fixed rod, and the surface of the fixed rod is rotatably connected to the upper inner wall of the connecting block via a bearing. When the driving gear drives the driven gear to rotate, the fixed rod rotates synchronously. This synchronization mechanism ensures the coordinated operation of the clamping mechanism and avoids workpiece displacement or damage caused by asynchrony.

[0010] To improve the flexibility of clamping, preferably, a guide groove is provided on the side of the mounting plate, and a protective plate is provided on the inner wall of the guide groove. The surface of the protective plate is fixedly connected to the inner wall of the guide groove. The guide groove is provided to provide a moving path for the connecting rod, ensuring that it can move smoothly along the predetermined trajectory, thereby improving the positioning accuracy of the entire fixing mechanism and ensuring that each operation achieves the expected results.

[0011] To improve the reliability of the flipping process, preferably, the two ends of the clamping screw are rotatably connected to the inner wall of the mounting plate, the surface of the connecting rod is slidably connected to the inner wall of the guide groove, the rear surface of the fixing block is in contact with the surface of the mounting plate, and the surface of the rubber plate is slidably connected to the inner wall of the fixing block. The rubber plate can adaptively adjust its position according to the shape of the workpiece and provide a soft and uniform pressure distribution, which can effectively prevent damage to the surface of the workpiece and increase friction to ensure that the workpiece is firmly clamped during processing and avoid the risk of slippage due to vibration or other external forces.

[0012] To improve transmission stability, preferably, the surface of the small motor is fixedly connected to the inner wall of the mounting plate, the rear end surface of the support rod is rotatably connected to the inner wall of the mounting plate, both ends of the fixed rod are fixedly connected to the surfaces of the two clamping screws, the surface of the connecting block is fixedly connected to the inner wall of the mounting plate, and the lower inner wall of the connecting block is rotatably connected to the surface of the support rod through a bearing. The connecting block provides low-friction, high-stability rotational support, enabling the support rod and the fixed rod to remain stable during high-speed rotation, while ensuring a stable distance between the support rod and the fixed rod, thereby ensuring accurate meshing of the driving gear and the driven gear.

[0013] To improve the smoothness of the connecting rod's movement, preferably, the upper surface of the protective plate is slidably connected to the lower surface of the fixing block. The presence of the protective plate effectively prevents external impurities from entering the guide groove, thus avoiding the influence of these impurities on the connecting rod's movement process.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention comprises a fixing mechanism, a transmission mechanism, a clamping screw, a connecting rod, a fixing block, a rubber plate, a support rod, a driving gear, a driven gear, and a connecting block. The fixing mechanism clamps both ends of the workpiece, while the transmission mechanism rotates the fixing mechanism. By rotating the clamping screw, the position of the connecting rod can be adjusted, allowing the fixing block and rubber plate at the top to fit against the crankshaft connecting rod surface for stable clamping. The clamping screw also has a self-locking characteristic, ensuring that the workpiece will not slip due to vibration or other external forces during subsequent flipping. When the driving gear drives the driven gear to rotate, the fixing rod rotates synchronously. This synchronization mechanism ensures coordinated operation of the clamping mechanism, avoiding workpiece offset or damage caused by asynchrony. This invention solves the problem of the current lack of automatic adaptive fixing devices in crankshaft connecting rod processing, which leads to manual adjustment and fixing of the workpiece, which is time-consuming and error-prone, affecting processing accuracy and quality. Manual flipping increases labor intensity and safety risks, especially when processing large workpieces, where the lack of automated equipment makes it difficult to improve processing efficiency and meet modern production needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the vertical cross-section of the mounting plate provided in this embodiment of the utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the fixing mechanism provided in an embodiment of the present utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the transmission mechanism provided in an embodiment of this utility model.

[0020] In the diagram: 1. Fixing mechanism; 101. Clamping screw; 102. Connecting rod; 103. Fixing block; 104. Elastic block; 105. Rubber plate; 2. Transmission mechanism; 201. Small motor; 202. Support rod; 203. Driving gear; 204. Driven gear; 205. Fixing rod; 206. Connecting block; 3. Guide groove; 4. Protective plate; 5. Fixing seat; 6. Electric pump; 7. Telescopic rod; 8. Lifting plate; 9. Mounting plate; 10. Tilting motor. Detailed Implementation

[0021] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4As shown in the figure, an automatic crankshaft connecting rod machining overturning device provided by this utility model embodiment includes a fixed base 5, an electric pump 6, a telescopic rod 7, a lifting plate 8, a mounting plate 9, and a overturning motor 10. One side surface of the fixed base 5 is fixedly connected to the surface of the electric pump 6, the inner wall of the fixed base 5 is fixedly connected to the middle surface of the telescopic rod 7, both ends of the telescopic rod 7 are fixedly connected to the lower surfaces of the two lifting plates 8, the upper end of the lifting plate 8 is fixedly connected to the surface of the overturning motor 10, the output end of the overturning motor 10 is connected to the surface of the mounting plate 9, the lower end of the mounting plate 9 is slidably connected to the upper end of the lifting plate 8 through a sliding groove, the lower surface of the lifting plate 8 is slidably connected to the surface of the fixed base 5 through a sliding groove, a fixing mechanism 1 is provided at the upper end of the lifting plate 8, and a transmission mechanism 2 is provided at the lower side of the fixing mechanism 1. The fixing mechanism 1 is used to clamp both ends of the workpiece, and the transmission mechanism 2 is used to drive the fixing mechanism 1. The fixing mechanism 1 includes a clamping screw 101, a connecting rod 102, a fixing block 103, an elastic block 104, and a rubber plate 105. The surface of the clamping screw 101 is threaded to the lower inner wall of the two connecting rods 102. The upper end of the connecting rod 102 is fixedly connected to the lower surface of the fixing block 103. The upper inner wall of the fixing block 103 is fixedly connected to the rear surface of the elastic block 104. The front surface of the elastic block 104 is fixedly connected to the rear surface of the rubber plate 105. By rotating the clamping screw 101, the position of the connecting rod 102 can be adjusted so that the top fixing block 103 and the rubber plate 105 can fit against the surface of the crankshaft connecting rod, achieving a stable clamping. The screw 101 has a self-locking characteristic, ensuring that the workpiece will not slip due to vibration or other external forces during subsequent flipping. The transmission mechanism 2 includes a small motor 201, a support rod 202, a driving gear 203, a driven gear 204, a fixed rod 205, and a connecting block 206. The output end of the small motor 201 is fixedly connected to the front end surface of the support rod 202. The surface of the support rod 202 is fixedly connected to the inner wall of the driving gear 203. The tooth surface of the driving gear 203 meshes with the tooth surface of the driven gear 204. The inner wall of the driven gear 204 is fixedly connected to the surface of the fixed rod 205. The surface of the fixed rod 205 is rotatably connected to the upper inner wall of the connecting block 206 through a bearing. When the driving gear 203 drives the driven gear 204 to rotate, the fixed rod 205... The synchronous rotation ensures coordinated operation of the clamping mechanism, preventing workpiece displacement or damage due to asynchrony. A guide groove 3 is provided on the upper side of the mounting plate 9, and a protective plate 4 is installed on the inner wall of the guide groove 3. The surface of the protective plate 4 is fixedly connected to the inner wall of the guide groove 3. The guide groove 3 provides a moving path for the connecting rod 102, ensuring it can move smoothly along a predetermined trajectory, improving the positioning accuracy of the entire fixing mechanism 1, and ensuring that each operation achieves the expected results. The two ends of the clamping screw 101 are rotatably connected to the inner wall of the mounting plate 9, the surface of the connecting rod 102 is slidably connected to the inner wall of the guide groove 3, the rear surface of the fixing block 103 contacts the surface of the mounting plate 9, and the surface of the rubber plate 105 is slidably connected to the inner wall of the fixing block 103.The rubber plate 105 can adaptively adjust its position according to the shape of the workpiece and provide a soft and uniform pressure distribution, which can effectively prevent damage to the surface of the workpiece. It also increases friction to ensure that the workpiece is firmly clamped during processing and avoids the risk of slippage due to vibration or other external forces. The surface of the small motor 201 is fixedly connected to the inner wall of the mounting plate 9. The rear end surface of the support rod 202 is rotatably connected to the inner wall of the mounting plate 9. Both ends of the fixing rod 205 are fixedly connected to the surfaces of the two clamping screws 101. The surface of the connecting block 206 is fixedly connected to the inner wall of the mounting plate 9. The lower side of the connecting block 206 is inner The wall and the surface of the support rod 202 are rotatably connected via bearings. The connecting block 206 provides low-friction, high-stability rotational support, allowing the support rod 202 and the fixed rod 205 to remain stable during high-speed rotation. This also ensures a stable distance between the support rod 202 and the fixed rod 205, thereby guaranteeing accurate meshing of the driving gear 203 and the driven gear 204. The upper surface of the protective plate 4 is slidably connected to the lower surface of the fixed block 103. The presence of the protective plate 4 effectively prevents external impurities from entering the guide groove 3, avoiding the influence of these impurities on the movement of the connecting rod 102.

[0024] The working principle of this utility model:

[0025] During the crankshaft connecting rod machining and flipping operation, firstly, based on the specific length of the workpiece, the electric pump 6 drives the telescopic rod 7 to operate. This process allows the lifting plate 8, which is equipped with mounting plate 9, to slide along the slide groove within the fixed seat 5, thereby adjusting the distance between the two mounting plates 9. Subsequently, the two ends of the crankshaft connecting rod to be machined are respectively placed on the two mounting plates 9. To ensure that the crankshaft connecting rod remains stable during machining, the small motor 201 inside the mounting plate 9 is started, driving the drive gear 203 to rotate through the support rod 202 connected to its output end. This drive gear 203 meshes with the driven gear 204, further driving the fixed rod 205 to rotate synchronously. The fixed rod 205 is equipped with clamping screws 101 at both ends. When the clamping screws 101 rotate, the connecting rods 102 on them... The crankshaft connecting rod will move along the guide groove 3, causing the fixing block 103 at the top of the connecting rod 102 and the rubber plate 105 fixed thereon to gradually approach and eventually make tight contact with the surface of the crankshaft connecting rod, achieving a stable clamping. Since the screw has a self-locking characteristic, this can effectively avoid the risk of the workpiece slipping during the subsequent flipping process. After completing the above steps, the flipping motor 10 located on the lifting plate 8 is started. The output end of the motor meshes with the lower side of the mounting plate 9, which can drive the entire mounting plate 9 and the workpiece clamped on it to rotate along the slide groove on the lifting plate 8 to achieve the purpose of precise flipping of the crankshaft connecting rod. After the processing is completed, the above steps can be performed in reverse order to safely remove the processed crankshaft connecting rod. The whole process improves work efficiency while ensuring the safety and accuracy of operation.

[0026] 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 process, method, article, or apparatus.

[0027] 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. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. An automatic reversing device for crankshaft connecting rod processing, comprising a fixed seat (5), an electric pump (6), a telescopic rod (7), a lifting plate (8), a mounting plate (9), and a reversing motor (10), wherein one side surface of the fixed seat (5) is fixedly connected to the surface of the electric pump (6), the inner wall of the fixed seat (5) is fixedly connected to the middle surface of the telescopic rod (7), both ends of the telescopic rod (7) are fixedly connected to the lower surfaces of the two lifting plates (8), the upper end of the lifting plate (8) is fixedly connected to the surface of the reversing motor (10), the output end of the reversing motor (10) is drivenly connected to the surface of the mounting plate (9), the lower end of the mounting plate (9) is slidably connected to the upper end of the lifting plate (8) through a sliding groove, and the lower surface of the lifting plate (8) is slidably connected to the surface of the fixed seat (5) through a sliding groove, characterized in that: The upper end of the lifting plate (8) is provided with a fixing mechanism (1), and the lower side of the fixing mechanism (1) is provided with a transmission mechanism (2). The fixing mechanism (1) is used to clamp both ends of the workpiece; The transmission mechanism (2) is used to transmit power to the fixed mechanism (1).

2. The automatic flipping device for crankshaft connecting rod machining as described in claim 1, characterized in that: The fixing mechanism (1) includes a clamping screw (101), a connecting rod (102), a fixing block (103), an elastic block (104), and a rubber plate (105). The surface of the clamping screw (101) is threaded to the lower inner wall of the two connecting rods (102). The upper end of the connecting rod (102) is fixedly connected to the lower surface of the fixing block (103). The upper inner wall of the fixing block (103) is fixedly connected to the rear surface of the elastic block (104). The front surface of the elastic block (104) is fixedly connected to the rear surface of the rubber plate (105).

3. The automatic flipping device for crankshaft connecting rod machining as described in claim 2, characterized in that: The transmission mechanism (2) includes a small motor (201), a support rod (202), a drive gear (203), a driven gear (204), a fixed rod (205), and a connecting block (206). The output end of the small motor (201) is fixedly connected to the front end surface of the support rod (202). The surface of the support rod (202) is fixedly connected to the inner wall of the drive gear (203). The tooth surface of the drive gear (203) meshes with the tooth surface of the driven gear (204). The inner wall of the driven gear (204) is fixedly connected to the surface of the fixed rod (205). The surface of the fixed rod (205) is rotatably connected to the upper inner wall of the connecting block (206) through a bearing.

4. The automatic flipping device for crankshaft connecting rod machining as described in claim 3, characterized in that: The mounting plate (9) has a guide groove (3) on its upper side, and a protective plate (4) is provided on the inner wall of the guide groove (3). The surface of the protective plate (4) is fixedly connected to the inner wall of the guide groove (3).

5. The automatic flipping device for crankshaft connecting rod machining as described in claim 4, characterized in that: The two ends of the clamping screw (101) are rotatably connected to the inner wall of the mounting plate (9), the surface of the connecting rod (102) is slidably connected to the inner wall of the guide groove (3), the rear surface of the fixing block (103) is in contact with the surface of the mounting plate (9), and the surface of the rubber plate (105) is slidably connected to the inner wall of the fixing block (103).

6. The automatic flipping device for crankshaft connecting rod machining as described in claim 3, characterized in that: The surface of the small motor (201) is fixedly connected to the inner wall of the mounting plate (9), the rear end surface of the support rod (202) is rotatably connected to the inner wall of the mounting plate (9), the two ends of the fixing rod (205) are fixedly connected to the surfaces of the two clamping screws (101), the surface of the connecting block (206) is fixedly connected to the inner wall of the mounting plate (9), and the lower inner wall of the connecting block (206) is rotatably connected to the surface of the support rod (202) through a bearing.

7. The automatic flipping device for crankshaft connecting rod machining as described in claim 4, characterized in that: The upper surface of the protective plate (4) is slidably connected to the lower surface of the fixing block (103).

Images