Automatic bushing conveying and angle positioning equipment for press fitting of engine connecting rod bushing

Abstract

The invention belongs to the technical field of auxiliary installation of engine parts, and particularly relates to automatic bush conveying and angle positioning equipment for press fitting of engine connecting rod bushings, which comprises a feeding conveying mechanism, a grabbing translation mechanism, an angle positioning mechanism, a transfer mechanism and a press fitting mechanism, the grabbing and translation mechanism is used for grabbing and translating a bushing at a discharging port of the feeding and conveying mechanism to the angle positioning mechanism, the angle positioning mechanism is used for positioning the bushing to a press-fitting angle, the transferring mechanism transfers the bushing subjected to angle positioning to the press-fitting mechanism, and the press-fitting mechanism presses the bushing into a connecting rod. Automatic operation is achieved in the whole process from feeding, angle positioning to press fitting, and automatic and accurate recognition of the angle of the engine connecting rod bush seam is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary installation of engine parts, and in particular relates to an automatic bushing conveying and angle positioning device for press-fitting of engine connecting rod bushings. Background Art

[0002] In the field of engine manufacturing, connecting rods are particularly important as the main functional parts. Most connecting rod production processes require the press-fitting of bushings, and this process is a key process. At present, on many engine production lines, the press-fitting of connecting rod bushings (usually copper bushings) is mostly still done manually. This traditional manual press-fitting method has many disadvantages: First, manual press-fitting is extremely inefficient. Workers need to pick up the connecting rod copper sleeves one by one, and use simple mechanical positioning and hydraulic cylinders to press them into the engine connecting rod at a specific joint angle. In this process, workers need to repeatedly pick up, identify angles, press, and so on. Each action takes a certain amount of time, making it difficult to improve the overall production efficiency and unable to meet the growing demand for engine production.

[0003] Secondly, the quality stability of manual press-fitting is poor. Since manual operation is inevitably affected by factors such as individual differences and fatigue of workers, it is difficult to keep the effect and angle of each press-fitting completely consistent. This can easily lead to deviations in the installation position of the connecting rod copper sleeve in the engine connecting rod, which in turn affects the overall performance and reliability of the engine. For example, if the copper sleeve joint angle is not installed accurately, the friction between the connecting rod and the copper sleeve will be unevenly distributed during the operation of the engine, which may accelerate the wear of the copper sleeve and shorten the service life of the engine. At the same time, due to the inaccurate angle, the bushing oil groove position is not good, resulting in the inability of the lubricating oil to fully enter the middle of the piston and the small end hole of the connecting rod during the operation of the engine, resulting in poor lubrication and reduced engine performance.

[0004] Furthermore, manual press-fitting requires high skills from workers. Workers need to undergo long-term training to master the skills of accurately identifying the angle of the connecting rod copper sleeve joint and the appropriate press-fitting force and angle. This not only increases the training cost of the company, but also once the skilled workers leave, the new workers need to be retrained, which has an adverse impact on the stable operation of the production line.

[0005] In addition, from the perspective of production safety, during the manual pressing process, workers repeat a single action for a long time, which is prone to fatigue, increasing the risk of operating errors, which may lead to safety accidents and pose a threat to the personal safety of workers. In terms of personnel costs, since the production line adopts a three-shift system, if manual pressing is used, an additional person will be required in each shift to be responsible for the pressing of the connecting rod copper sleeve. This undoubtedly brings a greater economic burden to the company, further highlighting the disadvantages of manual pressing in cost control.

[0006] Finally, it is worth noting that the product drawings have strict requirements for the copper sleeve press-fitting angle, and the allowable error range is only ±3 degrees. However, the human eye cannot accurately identify whether the copper sleeve is pressed within this angle range, which leads to a large number of undetected press-fitting angle errors, greatly increasing the quality risk of the product. Once these products with angle deviations enter the market, they may cause engine failures, affect corporate reputation, and cause a significant increase in after-sales costs and other serious consequences.

[0007] In summary, the existing manual pressing method has been unable to adapt to the requirements of the modern engine manufacturing industry for high efficiency, high quality, stable production and cost control. There is an urgent need for a mechanism that can realize the automatic delivery of the engine connecting rod copper sleeve and accurately identify the angle for pressing, so as to improve production efficiency, ensure product quality, reduce labor intensity, safety risks and personnel costs. Summary of the invention

[0008] In order to solve the problems of low efficiency, poor quality stability, high labor cost, high skill requirements for workers and difficulty in accurately controlling the pressing angle of copper sleeves in the manual pressing of engine connecting rod bushings in the prior art, the present invention provides an automatic bushing conveying and angle positioning device for pressing of engine connecting rod bushings.

[0009] The present invention is implemented in this way, providing a bushing automatic conveying and angle positioning device for press-fitting of engine connecting rod bushings, comprising a feeding conveying mechanism, a grabbing and translating mechanism, an angle positioning mechanism, a transfer mechanism and a press-fitting mechanism; the grabbing and translating mechanism is used to grab and translate the bushing at the discharge port of the feeding conveying mechanism to the angle positioning mechanism, the angle positioning mechanism is used to position the bushing to the press-fitting angle, the transfer mechanism transfers the bushing with the angle positioning to the press-fitting mechanism, and the press-fitting mechanism presses the bushing into the connecting rod; The angle positioning mechanism includes a rotating mechanism and an angle recognition mechanism. The rotating mechanism includes a rotating mounting bracket, a rotating driving mechanism, and a rotating fixture. The rotating driving mechanism is arranged below the rotating mounting bracket. The output end of the rotating driving mechanism passes through the rotating mounting bracket and is connected to the rotating fixture. The grasping and translating mechanism grasps and translates the bushing and sleeves it onto the rotating fixture. The angle recognition mechanism includes an angle recognition bracket, a first linear driving mechanism, an angle recognition sensor mounting seat, and an angle recognition sensor. The first linear driving mechanism is arranged on the angle recognition bracket. The angle recognition sensor mounting seat is arranged on the first linear driving mechanism. Two angle recognition sensors are provided, which are distributed up and down on the angle recognition sensor mounting seat. The first linear driving mechanism drives the two angle recognition sensors to approach or move away from the bushing on the rotating fixture through the angle recognition sensor mounting seat to identify the notch position located above or below on the bushing.

[0010] Preferably, the feeding and conveying mechanism includes a storage bin, a vibration mechanism and a linear conveying channel, the vibration mechanism is arranged on the bin bracket, and the vibration mechanism is arranged below the storage bin and the linear conveying channel, the inner wall of the storage bin is a spiral feeding structure, the outlet of the spiral feeding structure is connected to the linear conveying channel, and the discharge port of the linear conveying channel is located below the grasping and translation mechanism; a receiving tray with an inclined bottom wall is provided in the storage bin, and a receiving tray support plate is connected to one side of the opening of the receiving tray, and the lower end of the receiving tray support plate is also inclined and close to the bottom wall of the storage bin.

[0011] Preferably, the grabbing and translational mechanism includes a grabbing and translational bracket, a second linear drive mechanism, a grabbing and translational cylinder and a grabbing and translational clamp, the second linear drive mechanism is arranged on the grabbing and translational bracket, the grabbing and translational cylinder is connected to the second linear drive mechanism, the grabbing and translational clamp is arranged at the lower end of the grabbing and translational cylinder, and translation limit blocks are provided at both ends of the second linear drive mechanism.

[0012] Preferably, the transfer mechanism includes a transfer bracket, a transfer cylinder, a connecting arm and a transfer clamp, the transfer cylinder is arranged on the transfer bracket, one end of the connecting arm is connected to the transfer cylinder, and the other end is connected to the transfer clamp.

[0013] Further preferably, after the transfer jaw is rotated 180° from above the rotating fixture by the transfer cylinder, it is located just above the pressing mechanism.

[0014] Preferably, the rotating jig is provided with a groove with a lateral opening for installing a tightening block, and the inner wall of the groove is connected to the tightening block by a tightening spring. When the bushing is not mounted, the tightening block slightly extends out of the lateral opening of the groove, and the upper outer edges of the rotating jig and the tightening block are both inclined.

[0015] Preferably, the rotation drive mechanism includes a rotation drive motor and a coupling, the coupling is connected above the rotation drive motor, the output end of the coupling passes through the rotation mounting bracket and is connected to the rotation connecting disk, and the rotation fixture is arranged above the rotation connecting disk.

[0016] Preferably, the angle recognition sensor mounting seat includes an angle recognition sensor fixed seat and an angle recognition sensor movable seat, the angle recognition sensor fixed seat is connected to the first linear drive mechanism, the angle recognition sensor fixed seat is provided with a side opening groove for installing the angle recognition sensor movable seat, and the inner wall of the groove is connected to the angle recognition sensor movable seat through a buffer spring.

[0017] Compared with the prior art, the advantages of the present invention are: The present invention provides an automatic bushing conveying and angle positioning device for press-fitting of engine connecting rod bushings. The entire process from feeding, angle positioning to press-fitting realizes automated operation, realizes automatic and accurate recognition of the joint angle of the engine connecting rod bushing, and automatically and accurately press-fits it into the engine connecting rod at the correct joint angle, replacing the existing manual press-fitting method, thereby improving production efficiency, improving product quality stability, reducing personnel costs and quality risks caused by manual operation. At the same time, the degree of dependence on workers' professional skills is reduced, so that the production line can operate more stably and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure diagram of the automatic bushing conveying and angle positioning device for press-fitting the engine connecting rod bushing provided by the present invention; Figure 2 It is the overall position relationship diagram of the grasping translation mechanism, angle positioning mechanism and transfer mechanism; Figure 3 It is the overall position relationship diagram of the rotation mechanism, angle recognition mechanism and transfer mechanism; Figure 4 It is a schematic diagram of the overall structure of the rotating mechanism; Figure 5 It is a schematic diagram of the overall structure of the angle recognition mechanism; Figure 6 It is a schematic diagram of the overall structure of the feeding and conveying mechanism; Figure 7 This is the structural diagram of the receiving tray; Figure 8 This is the structural diagram of the receiving tray support plate; Fig. 9 It is a schematic diagram of the overall structure of the grabbing translation mechanism; Fig.10 It is a schematic diagram of the overall structure of the transfer mechanism; Fig.11 This is the structural diagram of the rotating fixture; Fig.12 This is the structural diagram of the expansion block; In the figure: 1-feeding conveying mechanism; 2-grasping translation mechanism; 3-angle positioning mechanism; 4-transfer mechanism; 5-angle recognition sensor movable seat; 6-rotation mechanism; 7-angle recognition mechanism; 8-rotation mounting bracket; 9-rotation drive mechanism; 10-rotation fixture; 11-angle recognition bracket; 12-first linear drive mechanism; 13-angle recognition sensor mounting seat; 14-angle recognition sensor; 15-storage bin; 16-vibration mechanism; 17-straight Line conveying channel; 18-bin bracket; 19-receiving tray; 20-receiving tray support plate; 21-grabbing translation bracket; 22-second linear drive mechanism; 23-grabbing translation cylinder; 24-grabbing translation clamp; 25-translation limit block; 26-transfer bracket; 27-transfer cylinder; 28-connecting arm; 29-transfer clamp; 30-installing expansion block; 31-driving motor; 32-coupling; 33-rotating connecting disk; 34-angle recognition sensor fixing seat. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] refer to Figure 1-Figure 12 The present invention provides an automatic bushing conveying and angle positioning device for press-fitting of engine connecting rod bushings, comprising a feeding conveying mechanism 1, a grabbing and translating mechanism 2, an angle positioning mechanism 3, a transfer mechanism 4 and a press-fitting mechanism; the grabbing and translating mechanism 2 is used to grab and translate the bushing at the discharge port of the feeding conveying mechanism 1 to the angle positioning mechanism 3, the angle positioning mechanism 3 is used to position the bushing to the press-fitting angle, the transfer mechanism 4 transfers the bushing with the angle positioning to the press-fitting mechanism, and the press-fitting mechanism presses the bushing into the connecting rod; The angle positioning mechanism 3 includes a rotating mechanism 6 and an angle recognition mechanism 7. The rotating mechanism 6 includes a rotating mounting bracket 8, a rotating driving mechanism 9, and a rotating fixture 10. The rotating driving mechanism 9 is arranged below the rotating mounting bracket 8. The output end of the rotating driving mechanism 9 passes through the rotating mounting bracket 8 and is connected to the rotating fixture 10. The grasping and translating mechanism 2 grasps and translates the bushing and sleeves it onto the rotating fixture 10; the angle recognition mechanism 7 includes an angle recognition bracket 11, a first linear driving mechanism 12, an angle recognition sensor mounting seat 13 and an angle recognition sensor 14. The first linear driving mechanism 12 is arranged on the angle recognition bracket 11, and the angle recognition sensor mounting seat 13 is arranged on the first linear driving mechanism 12. There are two angle recognition sensors 14, which are distributed up and down on the angle recognition sensor mounting seat 13. The first linear driving mechanism 12 drives the two angle recognition sensors 14 to approach or move away from the bushing on the rotating fixture 10 through the angle recognition sensor mounting seat 13 to identify the notch position located above or below the bushing.

[0021] During the operation of the equipment, the feeding and conveying mechanism 1 sequentially delivers the bushing to the discharge port, and the grabbing and translating mechanism 2 grabs and translates the bushing to the rotating fixture 10 of the rotating mechanism 6. At this time, the first linear drive mechanism 12 drives the angle recognition sensor mounting seat 13 to approach the bushing on the rotating fixture 10. After it approaches to a distance that can recognize the notch on the bushing, the rotating drive mechanism 9 drives the rotating fixture 10 to rotate, and the rotating fixture 10 drives the bushing to rotate. Since there is only one notch on the bushing, the position of the notch may be above or below, so the notch on the bushing can be recognized by two angle recognition sensors 14. After the notch is recognized, the rotating drive mechanism 9 controls the rotating fixture 10 to stop rotating, and the bushing is positioned. The grabbing and translating mechanism 2 lifts the bushing from the rotating fixture 10 again, and the transfer mechanism 4 takes over the bushing and transfers it to the pressing mechanism for pressing with the connecting rod.

[0022] As a specific implementation method of the loading and conveying mechanism 1, the loading and conveying mechanism 1 includes a storage bin 15, a vibration mechanism 16 and a linear conveying channel 17. The vibration mechanism 16 is arranged on the bin bracket 18, and the vibration mechanism 16 is arranged below the storage bin 15 and the linear conveying channel 17. The inner wall of the storage bin 15 is a spiral loading structure, and the outlet of the spiral loading structure is connected to the linear conveying channel 17. The discharge port of the linear conveying channel 17 is located below the grasping and translation mechanism 2; a receiving tray 19 with an inclined bottom wall is provided in the storage bin 15, and a receiving tray support plate 20 is connected to one side of the opening of the receiving tray 19, and the lower end of the receiving tray support plate 20 is also inclined and close to the bottom wall of the storage bin 15.

[0023] During the feeding and conveying process, the operator pours the bushing into the receiving tray 19, and the bushing falls along the inclined bottom wall of the receiving tray 19, onto the inclined bottom wall of the receiving tray support plate 20, and finally onto the bottom wall of the storage bin 15. At this time, the bushing rises in a spiral along the spiral feeding structure of the storage bin 15 under the vibration action of the vibration mechanism 16 until it reaches the linear conveying channel 17. The vibration mechanism 16 under the linear conveying channel 17 generates a slight vibration, and the bushing is able to move forward on the linear conveying channel 17 by adjusting the frequency and amplitude.

[0024] As a specific implementation method of the grabbing and translational mechanism 2, the grabbing and translational mechanism 2 includes a grabbing and translational bracket 21, a second linear drive mechanism 22, a grabbing and translational cylinder 23 and a grabbing and translational clamp 24. The second linear drive mechanism 22 is arranged on the grabbing and translational bracket 21, the grabbing and translational cylinder 23 is connected to the second linear drive mechanism 22, the grabbing and translational clamp 24 is arranged at the lower end of the grabbing and translational cylinder 23, and translation limit blocks 25 are provided at both ends of the second linear drive mechanism 22.

[0025] In the process of grabbing and translating the bushing, the grabbing and translating cylinder 23 is first located above the discharge port of the linear conveying channel 17, and controls the grabbing and translating jaws 24 to grab the bushing at the discharge port downward, and then rises after the grabbing is completed, and then, driven by the second linear drive mechanism 22, translates to the other end of the second linear drive mechanism 22, and the grabbing and translating cylinder 23 controls the grabbing and translating jaws 24 to move downward to place the bushing on the rotating fixture 10.

[0026] As a specific implementation method of the transfer mechanism 4, the transfer mechanism 4 includes a transfer bracket 26, a transfer cylinder 27, a connecting arm 28 and a transfer clamp 29. The transfer cylinder 27 is arranged on the transfer bracket 26, one end of the connecting arm 28 is connected to the transfer cylinder 27, and the other end is connected to the transfer clamp 29.

[0027] During the transfer of the angle-positioned bushing, the grabbing and translating cylinder 23 controls the grabbing and translating jaws 24 downward, clamps the upper part of the bushing and lifts it up, and the transfer cylinder 27 extends forward, clamps the lower part of the bushing, and after rotating it to a certain angle, the bushing is placed on the pressing mechanism for press-fitting.

[0028] Preferably, the transfer jaw 29 is rotated 180° from above the rotating fixture 10 by the transfer cylinder 27 and is located just above the pressing mechanism.

[0029] In order to drive the bushing to rotate together during the rotation of the rotating jig 10, as an improvement of the technical solution, the rotating jig 10 is provided with a groove with a lateral opening for installing the expansion block 30, and the inner wall of the groove is connected to the expansion block 30 by a expansion spring. When the bushing is not mounted, the expansion block 30 slightly extends out of the lateral opening of the groove, and the upper outer edges of the rotating jig 10 and the expansion block 30 are both inclined.

[0030] When the grasping translation mechanism 2 places the bushing on the rotating jig 10, the inner wall of the bushing pushes the expansion block 30 along the inclined surface of the rotating jig 10 and the upper outer edge of the expansion block 30 to move toward the inside of the groove on the rotating jig 10, compressing the expansion spring until the bushing is completely inserted into the rotating jig 10. Under the action of the expansion spring, the expansion block 30 is tightened by the expansion block 30 and can rotate with the rotating jig 10.

[0031] As a specific implementation method of the rotation drive mechanism 9, the rotation drive mechanism 9 includes a rotation drive motor 31 and a coupling 32. The coupling 32 is connected above the rotation drive motor 31. The output end of the coupling 32 passes through the rotation mounting bracket 8 and is connected to the rotation connecting disk 33. The rotation fixture 10 is arranged above the rotation connecting disk 33.

[0032] In order to prevent the angle recognition sensor mounting seat 13 from being too close to the bushing during movement and thus damaging the sensor, as an improvement of the technical solution, the angle recognition sensor mounting seat 13 includes an angle recognition sensor fixed seat 34 and an angle recognition sensor movable seat 5. The angle recognition sensor fixed seat 34 is connected to the first linear drive mechanism 12. The angle recognition sensor fixed seat 34 is provided with a side opening groove for installing the angle recognition sensor movable seat 5. The inner wall of the groove is connected to the angle recognition sensor movable seat 5 by a buffer spring.

[0033] Once the sensor on the angle recognition sensor movable seat 5 contacts the bushing, if the distance is not controlled well and it continues to move forward, the angle recognition sensor movable seat 5 compresses the buffer spring, and the angle recognition sensor movable seat 5 moves toward the direction of the internal groove of the angle recognition sensor fixed seat 34 to prevent damage to the sensor.

[0034] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. Automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings, characterized in that: It comprises a feeding conveying mechanism (1), a grabbing and translating mechanism (2), an angle positioning mechanism (3), a transfer mechanism (4) and a press-fitting mechanism; the grabbing and translating mechanism (2) is used to grab and translate the bushing at the discharge port of the feeding conveying mechanism (1) to the angle positioning mechanism (3); the angle positioning mechanism (3) is used to position the bushing to a press-fitting angle; the transfer mechanism (4) transfers the bushing with the angle positioning to the press-fitting mechanism; and the press-fitting mechanism press-fits the bushing into the connecting rod; The angle positioning mechanism (3) comprises a rotating mechanism (6) and an angle recognition mechanism (7); the rotating mechanism (6) comprises a rotating mounting bracket (8), a rotating drive mechanism (9), and a rotating fixture (10); the rotating drive mechanism (9) is arranged below the rotating mounting bracket (8); the output end of the rotating drive mechanism (9) passes through the rotating mounting bracket (8) and is connected to the rotating fixture (10); the grasping and translating mechanism (2) grasps and translates the bushing and sleeves it onto the rotating fixture (10); the angle recognition mechanism (7) comprises an angle recognition bracket (11), a first linear drive mechanism (12), an angle recognition sensor (9), and a rotating fixture (10); A sensor mounting seat (13) and an angle recognition sensor (14), a first linear drive mechanism (12) being arranged on the angle recognition bracket (11), an angle recognition sensor mounting seat (13) being arranged on the first linear drive mechanism (12), two angle recognition sensors (14) being arranged on the angle recognition sensor mounting seat (13) in an upper and lower distribution, the first linear drive mechanism (12) driving the two angle recognition sensors (14) to approach or move away from a bushing on the rotating fixture (10) through the angle recognition sensor mounting seat (13), and identifying the position of a notch located above or below the bushing.

2. The automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings according to claim 1 is characterized in that: The feeding and conveying mechanism (1) comprises a storage bin (15), a vibration mechanism (16) and a linear conveying channel (17); the vibration mechanism (16) is arranged on a bin support (18); the vibration mechanism (16) is arranged below the storage bin (15) and the linear conveying channel (17); the inner wall of the storage bin (15) is a spiral feeding structure; the outlet of the spiral feeding structure is connected to the linear conveying channel (17); the outlet of the linear conveying channel (17) is located below the grasping and translation mechanism (2); a receiving tray (19) is arranged with an inclined bottom wall in the storage bin (15); a receiving tray support plate (20) is connected to one side of the opening of the receiving tray (19); the lower end of the receiving tray support plate (20) is also inclined and close to the bottom wall of the storage bin (15).

3. The automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings according to claim 1 is characterized in that: The grabbing translation mechanism (2) comprises a grabbing translation bracket (21), a second linear drive mechanism (22), a grabbing translation cylinder (23) and a grabbing translation clamp (24); the second linear drive mechanism (22) is arranged on the grabbing translation bracket (21); the grabbing translation cylinder (23) is connected to the second linear drive mechanism (22); the grabbing translation clamp (24) is arranged at the lower end of the grabbing translation cylinder (23); and translation limit blocks (25) are provided at both ends of the second linear drive mechanism (22).

4. The automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings according to claim 1, characterized in that: The transfer mechanism (4) comprises a transfer bracket (26), a transfer cylinder (27), a connecting arm (28) and a transfer clamp (29); the transfer cylinder (27) is arranged on the transfer bracket (26); one end of the connecting arm (28) is connected to the transfer cylinder (27) and the other end is connected to the transfer clamp (29).

5. The automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings according to claim 4, characterized in that: After the transfer clamp (29) is rotated 180° from above the rotating fixture (10) by the transfer cylinder (27), it is located just above the pressing mechanism.

6. The automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings according to claim 1, characterized in that: The rotating jig (10) is provided with a groove with a lateral opening for mounting a tightening block (30); the inner wall of the groove is connected to the tightening block (30) via an tightening spring; when the bushing is not sleeved, the tightening block (30) slightly protrudes from the lateral opening of the groove; and the upper outer edges of the rotating jig (10) and the tightening block (30) are both inclined.

7. The automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings according to claim 1, characterized in that: The rotary drive mechanism (9) comprises a rotary drive motor (31) and a coupling (32); the coupling (32) is connected above the rotary drive motor (31); an output end of the coupling (32) passes through the rotary mounting bracket (8) and is connected to a rotary connection disk (33); and the rotary fixture (10) is arranged above the rotary connection disk (33).

8. The automatic bushing conveying and angle positioning equipment for press-fitting of engine connecting rod bushings according to claim 1, characterized in that: The angle recognition sensor mounting seat (13) comprises an angle recognition sensor fixing seat (34) and an angle recognition sensor movable seat (5); the angle recognition sensor fixing seat (34) is connected to the first linear drive mechanism (12); a groove with a side opening for mounting the angle recognition sensor movable seat (5) is provided on the angle recognition sensor fixing seat (34); an inner wall of the groove is connected to the angle recognition sensor movable seat (5) via a buffer spring.

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