An eccentric shaft servo press fitting mechanism

Abstract

This invention relates to an eccentric shaft servo pressing mechanism, comprising: a pressing machine platform; a belt conveyor line with a carrier for placing products; a rotary table with a pressing carrier on it, the rotary table driving the pressing carrier to rotate intermittently by 180°; a four-axis robot with a gripper assembly connected thereto; a centering assembly for positioning the rotary table; a pressing device for pressing the eccentric shaft into the product to be pressed in the pressing carrier; a pressing lifting mechanism for lifting the product to be pressed in the pressing carrier when the pressing device presses the eccentric shaft; a vibratory feeder for feeding the eccentric shafts one by one; and a loading robot for grabbing the eccentric shaft from the discharge end of the vibratory feeder and feeding it to the pressing device. The eccentric shaft servo pressing mechanism of this invention fully automatically realizes the feeding, pressing, and monitoring of eccentric shafts, as well as automatic loading and unloading. While the coordination between actions is relatively complex, the cycle time is fast. The mechanism has good positioning and high precision.

Description

Technical Field

[0001] This invention relates to the field of automated production equipment technology, and in particular to an eccentric shaft servo press-fitting mechanism. Background Technology

[0002] ABS motors are primarily used in automotive ABS (Anti-lock Braking System) systems. They are motors designed to prevent brake lock-up during braking, and their working principle involves an eccentric shaft generating intermittent braking through a hydraulic system. During the manufacturing process, the eccentric shaft needs to be inserted into a corresponding iron core to form the rotor. The relative positions of the eccentric shaft and the iron core have strict requirements, therefore, precise positioning of both is necessary during assembly.

[0003] However, in existing ABS motor production equipment, some processes such as feeding, positioning, and pressing of the eccentric shaft and motor still require manual intervention, making it a semi-automated production process. This production method results in low automation, poor positioning, and consequently, low production efficiency and a low product qualification rate for ABS motors. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the eccentric shaft assembly of the motor in the prior art is a semi-automatic method, which seriously affects the production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides an eccentric shaft servo pressing mechanism, comprising: a pressing machine platform; a belt conveyor line with a plurality of carriers on which products to be pressed are placed, the portion of the belt conveyor line passing through the pressing machine platform being divided into a material picking position and a material unloading position; a rotary table disposed on the pressing machine platform, the rotary table having two pressing containers, the rotary table driving the pressing containers to rotate intermittently by 180°, the pressing containers being used to place the products to be pressed; and a four-axis robot mounted on the pressing machine platform, the four-axis robot being connected to a gripper assembly, the four-axis robot driving the gripper assembly to grasp the products to be pressed from the material picking position and place them into the pressing containers, and... A four-axis robot-driven gripper assembly picks up products with pre-pressed eccentric shafts from the press-loading fixture and places them at the unloading position. A centering assembly, mounted on the press-loading machine platform, positions the rotary table. A pressing device, also mounted on the press-loading machine platform, presses the eccentric shafts into the products to be pressed in the press-loading fixture. A pressing lifting mechanism lifts the products to be pressed in the press-loading fixture while the pressing device is pressing the eccentric shafts. A vibratory feeder contains several eccentric shafts and feeds them one by one. A loading robot, mounted on the pressing device, picks up eccentric shafts from the vibratory feeder's outlet and feeds them to the pressing device. This eccentric shaft servo pressing mechanism of the present invention can automatically realize the feeding, pressing, and monitoring of eccentric shafts, as well as automatic loading and unloading, on an automotive pump assembly line.

[0006] In one embodiment of the present invention, a lifting and positioning device is provided at the corresponding positions of the material taking position and the material discharging position on the pressing machine platform. The lifting and positioning device is used to lift the carrier and position the carrier.

[0007] In one embodiment of the present invention, the rotary table includes a rotary slide and a turntable. The rotary slide is mounted on a pressing machine platform. The turntable is a disc and has two centering grooves. The two centering grooves are located on the same diameter and on the outer circumference of the turntable. The two pressing fixtures are mounted on the turntable and are located on the same diameter of the turntable.

[0008] In one embodiment of the present invention, the press-loading device includes a lower base plate, an upper support plate, a product positioning block, a lifting rod, a second guide column, and a second guide sleeve. The lower base plate is fixedly mounted on a turntable. The upper support plate is connected to the second guide column. The second guide sleeve is disposed on the lower base plate. The second guide column and the second guide sleeve are slidably connected. The product positioning block is fixedly disposed on the upper support plate and is used to place the product. The upper end of the lifting rod is connected to the upper support plate, and the press-loading lifting mechanism is in contact with the lower end of the lifting rod.

[0009] In one embodiment of the present invention, the gripper assembly includes a gripper mounting frame, a gripper cylinder one, a drive cylinder one, and a gripper cylinder two. The gripper mounting frame is connected to a four-axis robot. Both the gripper cylinder one and the drive cylinder one are mounted on the gripper mounting frame. The gripper cylinder two is connected to the output end of the drive cylinder one. The drive cylinder one drives the gripper cylinder two to avoid being positioned when the gripper cylinder one grips the product.

[0010] In one embodiment of the present invention, the centering assembly includes a centering support, a centering cylinder, a connecting block, and an insert block. The centering support is fixedly installed on the press machine platform. The centering cylinder is disposed on the centering support. The connecting block is connected to the output end of the centering cylinder. The insert block is installed on the connecting block. The centering cylinder drives the insert block to insert into the centering groove to achieve the positioning of the turntable.

[0011] In one embodiment of the present invention: the pressing device includes a pressing support frame, a servo electric cylinder, a suction nozzle mounting plate and a pressing suction nozzle. The pressing support frame is fixedly installed on the pressing machine platform. The servo electric cylinder is installed on the pressing support frame. The suction nozzle mounting plate is connected to the output end of the servo electric cylinder. The pressing suction nozzle is disposed on the suction nozzle mounting plate and is used to pick up and press the eccentric shaft.

[0012] In one embodiment of the present invention, the pressing and lifting mechanism includes a pressing and lifting cylinder, a pressing inclined block, a linear guide rail, and a slider. The pressing and lifting cylinder and the linear guide rail are both mounted on the pressing machine platform. One end of the pressing inclined block is connected to the output end of the pressing and lifting cylinder. The slider is mounted on the pressing inclined block and is located on the linear guide rail. The slider can slide along the linear guide rail. The pressing inclined block is in contact with the lifting rod.

[0013] In one embodiment of the present invention, the lower end of the lifting rod is provided with an inclined surface one, and the upper end of the pressing inclined block is provided with an inclined surface two, and the inclined surface one and the inclined surface two are in contact.

[0014] In one embodiment of the present invention, the feeding robot includes a feeding horizontal cylinder, a feeding bracket, a rotary cylinder, and a feeding gripper cylinder. The feeding bracket is connected to the output end of the feeding horizontal cylinder. The rotary cylinder is mounted on the feeding bracket. The feeding gripper cylinder is connected to the output end of the rotary cylinder. The rotary cylinder drives the feeding gripper cylinder to rotate 90°. The feeding gripper cylinder is used to grab the eccentric shaft from the discharge end of the vibratory feeder and feed it to the pressing device.

[0015] Compared with the prior art, the above-described technical solution of the present invention has the following advantages:

[0016] The eccentric shaft servo pressing mechanism described in this invention automatically realizes the feeding, pressing, and monitoring of eccentric shafts, as well as automatic loading and unloading. While the coordination between actions is extensive and the process is complex, it offers a high cycle time. The mechanism boasts excellent positioning and high precision. Attached Figure Description

[0017] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0018] Figure 1 This is a schematic diagram of the external structure of the eccentric shaft servo press-fitting mechanism in a preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the eccentric shaft servo press-fitting mechanism in a preferred embodiment of the present invention. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the eccentric shaft servo press-fitting mechanism in a preferred embodiment of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the lifting and positioning device in a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the four-axis robot and gripper assembly in a preferred embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the gripper assembly in a preferred embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the rotary table, pressing device, and pressing lifting mechanism in a preferred embodiment of the present invention. Figure 1 ;

[0025] Figure 8 This is a schematic diagram of the structure of the rotary table, pressing device, and pressing lifting mechanism in a preferred embodiment of the present invention. Figure 2 ;

[0026] Figure 9 This is a schematic diagram of the structure of the rotary table, pressing device, and pressing lifting mechanism in a preferred embodiment of the present invention. Figure 3 ;

[0027] Figure 10 This is a schematic diagram of the pressing device and pressing lifting mechanism in a preferred embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the structure of the press-loading device and the press-loading lifting mechanism in a preferred embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the loading robot in a preferred embodiment of the present invention.

[0030] Instruction manual drawing reference numerals: Pressing machine 1, Column 11, Camera 12, Belt conveyor line 2, Carrier 20, Rotary table 3, Pressing fixture 30, Lower base plate 301, Upper support plate 302, Product positioning block 303, Lifting rod 304, Inclined surface one 3041, Guide column two 305, Guide sleeve two 306, Rotary slide 31, Turntable 32, Centering groove 321, Four-axis robot 4, Gripper assembly 40, Gripper mounting bracket 401, Gripper cylinder one 402, Drive cylinder one 403, Gripper cylinder two 404, Bracket 405, Positioning column two 406, Centering assembly 5, Centering support seat 51, Centering cylinder 52. Cylinder; 53. Connecting block; 54. Insertion block; 6. Pressing device; 61. Pressing support frame; 62. Servo electric cylinder; 63. Suction nozzle mounting plate; 64. Pressing suction nozzle; 7. Pressing lifting mechanism; 71. Pressing lifting cylinder; 72. Pressing inclined block; 72. Inclined surface II; 72. Linear guide rail; 73. Slider; 74. Vibratory feeder; 8. Feeding robot; 9. Feeding horizontal cylinder; 91. Feeding bracket; 92. Rotary cylinder; 93. Feeding gripper cylinder; 94. Lifting and positioning device; 10. Fixed mounting frame; 101. Lifting cylinder I; 102. Lifting plate I; 103. Top block I; 104. Positioning column I; 105. Guide column I; 106. Guide sleeve I; 107. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0032] Reference Figure 1-3As shown, the eccentric shaft servo pressing mechanism of the present invention includes: a pressing machine platform 1; a belt conveyor 2 with a plurality of carriers 20 on it, wherein the carriers 20 are loaded with products to be pressed, the belt conveyor 2 passing through the pressing machine platform 1 is divided into a material picking position and a material unloading position, and a column 11 is provided at the position opposite to the material unloading position of the pressing machine platform 1, and a camera 12 is installed on the column 11, the camera 12 being used to photograph whether the pressed products on the carriers 20 at the material unloading position are qualified; a rotary table 3, which is set on the pressing machine platform 1, and two pressing loads 30 are provided on the rotary table 3, the rotary table 3 driving the pressing loads 30 to rotate intermittently by 180°, the pressing loads 30 being used to place the products to be pressed; a four-axis robot 4, which is installed on the pressing machine platform 1, the four-axis robot 4 being connected to a gripper assembly 40, the four-axis robot 4 driving... The moving gripper assembly 40 grips the product to be pressed from the material picking position into the pressing fixture 30, and the four-axis robot 4 drives the gripper assembly 40 to grip the product with the eccentric shaft already pressed into the pressing fixture 30 and move it to the unloading position; the centering assembly 5 is set on the pressing machine table 1, and the centering assembly 5 is used to position the rotary table 3; the pressing device 6 is installed on the pressing machine table 1, and the pressing device 6 is used to press the eccentric shaft into the product to be pressed into the pressing fixture 30; the pressing lifting mechanism 7 is used to lift the product to be pressed into the pressing fixture 30 upward when the pressing device 6 presses the eccentric shaft; the vibratory plate 8 is provided with several eccentric shafts, and the vibratory plate 8 is used to feed the eccentric shafts one by one; the feeding robot 9 is installed on the pressing device 6, and the feeding robot 9 is used to grab the eccentric shaft from the discharge end of the vibratory plate 8 and feed it to the pressing device 6.

[0033] Reference Figure 4As shown, lifting and positioning devices 10 are provided at positions corresponding to the material handling and unloading positions on the pressing machine platform 1. These lifting and positioning devices 10 are used to lift and position the carrier 20. Each lifting and positioning device 10 includes a fixed mounting frame 101, a lifting cylinder 102, a lifting plate 103, several lifting blocks 104, positioning posts 105, guide posts 106, and guide sleeves 107. The fixed mounting frame 101 is mounted on the pressing machine platform 1, and the lifting cylinder 102 is mounted on the fixed mounting frame 101. The lifting plate 103 is connected to the output end of the lifting cylinder 102. The several lifting blocks 104 and positioning posts 105 are all located on the lifting plate 103. The lifting cylinder 102 drives the lifting plate 103 to rise. The process involves several top blocks 104 contacting the carrier 20 and disengaging the carrier 20 from the belt conveyor 2. The carrier 20 is provided with positioning holes 201. During the process of the lifting cylinder 102 driving the lifting plate 103 to rise, the positioning pin 105 is inserted into the positioning hole 201 to position the carrier 20. The guide pin 106 is connected to the lifting plate 103. The guide sleeve 107 is set on the fixed mounting frame 101. The guide pin 106 passes through the guide sleeve 107 and can slide up and down along the guide sleeve 107.

[0034] Reference Figure 7 , 8 As shown, the rotary table 3 includes a rotary slide 31 and a turntable 32. The rotary slide 31 is mounted on the press machine platform 1. The turntable 32 is a disc and has two centering grooves 321. The two centering grooves 321 are located on the same diameter and on the outer circumference of the turntable 32. The two press loaders 30 are mounted on the turntable 32 and are located on the same diameter of the turntable 32.

[0035] Reference Figure 7 , 11 As shown, the press-loading device 30 includes a lower base plate 301, an upper support plate 302, a product positioning block 303, a lifting rod 304, a second guide column 305, and a second guide sleeve 306. The lower base plate 301 is fixedly mounted on the turntable 32. The upper support plate 302 is connected to the second guide column 305. The second guide sleeve 306 is disposed on the lower base plate 301. The second guide column 305 and the second guide sleeve 306 are slidably connected. The product positioning block 303 is fixedly disposed on the upper support plate 302 and is used to place the product. The upper end of the lifting rod 304 is connected to the upper support plate 302. The press-loading lifting mechanism 7 is in contact with the lower end of the lifting rod 304.

[0036] Reference Figure 7 , 8As shown, the centering assembly 5 includes a centering support 51, a centering cylinder 52, a connecting block 53, and an insert block 54. The centering support 51 is fixedly mounted on the press machine platform 1. The centering cylinder 52 is mounted on the centering support 51. The connecting block 53 is connected to the output end of the centering cylinder 52. The insert block 54 is mounted on the connecting block 53. The centering cylinder 52 drives the insert block 54 to insert into the centering groove 321 to achieve the positioning of the turntable 32. To ensure accurate positioning of the turntable 32, the centering groove 321 is a U-shaped groove with two concave grooves on the bottom surface. The end of the insert block 54 opposite to the turntable 32 has two protruding corners. The two protruding corners and the insert block 54 form a U-shaped structure, and the two protruding corners are located in the two concave grooves.

[0037] Reference Figure 5 , 6 As shown, the gripper assembly 40 includes a gripper mounting frame 401, a gripper cylinder 402, a drive cylinder 403, and a gripper cylinder 404. The gripper mounting frame 401 is connected to the four-axis robot 4. Both the gripper cylinder 402 and the drive cylinder 403 are mounted on the gripper mounting frame 401. The gripper cylinder 404 is connected to the output end of the drive cylinder 403. The drive cylinder 403 drives the gripper cylinder 404 to avoid obstruction when the gripper cylinder 402 grips the product. Supports 405 are provided on the outer walls of both the gripper cylinder 402 and the gripper cylinder 404. Positioning pins 406 are mounted on the supports 405. Positioning holes are provided on both the carrier 20 and the pressure loading device 30. The positioning pins 406 are inserted into the positioning holes to achieve positioning between the gripper cylinders 402 and 404 and the carrier 20 and the pressure loading device 30.

[0038] Reference Figure 9-11 As shown, the pressing device 6 includes a pressing support frame 61, a servo electric cylinder 62, a suction nozzle mounting plate 63, and a pressing suction nozzle 64. The pressing support frame 61 is fixedly installed on the pressing machine base 1. The servo electric cylinder 62 is installed on the pressing support frame 61. The suction nozzle mounting plate 63 is connected to the output end of the servo electric cylinder 62. The pressing suction nozzle 64 is disposed on the suction nozzle mounting plate 63. The pressing suction nozzle 64 is used to pick up and press the eccentric shaft.

[0039] Reference Figure 9-11As shown, the pressing and lifting mechanism 7 includes a pressing and lifting cylinder 71, a pressing inclined block 72, a linear guide rail 73, and a slider 74. The pressing and lifting cylinder 71 and the linear guide rail 73 are both mounted on the pressing machine platform 1. One end of the pressing inclined block 72 is connected to the output end of the pressing and lifting cylinder 71. The slider 74 is mounted on the pressing inclined block 72 and is positioned on the linear guide rail 73, and can slide along the linear guide rail 73. The pressing inclined block 72 is in contact with the lifting rod 304. The lower end of the lifting rod 304 has an inclined surface 3041, and the upper end of the pressing inclined block 72 has an inclined surface 721. The inclined surface 3041 and the inclined surface 721 are in contact. The linear guide rail 73 and the piston rod of the pressing lifting cylinder 71 are arranged in the same direction for extending or retracting. During the process of the pressing lifting cylinder 71 driving the pressing inclined block 72 to move along the linear guide rail 73, when the second inclined surface 721 is in contact with the first inclined surface 3041 at a higher horizontal position, it can push the lifting rod 304 to move upward, realizing the pressing between the eccentric shaft and the product. When the second inclined surface 721 is in contact with the first inclined surface 3041 at a lower horizontal position, the lifting rod 304 falls back. In this way, when pressing the eccentric shaft, the contact between the lifting rod 304 and the pressing inclined block 72 will transfer the greater pressure of the product to the pressing machine platform 1, avoiding the turntable 32 being stressed when the pressing device 6 presses down on the pressing load 30.

[0040] Reference Figure 12 As shown, the loading robot 9 includes a loading horizontal cylinder 91, a loading bracket 92, a rotary cylinder 93, and a loading gripper cylinder 94. The loading bracket 92 is connected to the output end of the loading horizontal cylinder 91. The rotary cylinder 93 is mounted on the loading bracket 92. The loading gripper cylinder 94 is connected to the output end of the rotary cylinder 93. The rotary cylinder 93 drives the loading gripper cylinder 94 to rotate 90°. The loading gripper cylinder 94 is used to grab the eccentric shaft from the discharge end of the vibratory plate 8 and feed it to the pressing device 6.

[0041] The working principle of the eccentric shaft servo press-fitting mechanism described in this invention is as follows:

[0042] After the carrier 20 reaches the material-retrieving position, it stops. The lifting and positioning device 10 activates, and the lifting cylinder 102 drives several lifting blocks 104 to lift the carrier 20. Simultaneously, after positioning the carrier 20, the four-axis robot 4 drives the gripper assembly 40 to the material-retrieving position to retrieve the material. The driving cylinder 403 drives the gripper cylinder 404 to move away from the material-retrieving position. The gripper of the gripper cylinder 402 clamps the product on the carrier 20, and the four-axis robot 4 drives the gripper assembly 40 to transfer the product to the pressure loading device 3 on the rotary table 3. On the top, the rotary table 3 moves, rotating the pressure loading fixture 30 180°. The centering component 5 moves, and the centering cylinder 52 drives the insert block 54 to insert into the centering groove 321, positioning the rotary table 3. The drive cylinder 1 403 drives the gripper cylinder 2 404 to reach above the pressure loading fixture 30. The gripper cylinder 2 404 clamps the product with the eccentric shaft pressed and removes the product. The four-axis robot 4 drives the gripper component 40 to put the product held by the gripper cylinder 1 402 into the pressure loading fixture 30.

[0043] Simultaneously, the vibratory feeder 8 continuously vibrates, conveying the eccentric shaft forward. When the eccentric shaft reaches the discharge port of the vibratory feeder 8, the gripper of the loading claw cylinder 94 clamps the eccentric shaft. Then, the rotary cylinder 93 drives the loading claw cylinder 94 to rotate 90°, causing the eccentric shaft held by the loading claw cylinder 94 to face upwards. The loading horizontal cylinder 91 then conveys the eccentric shaft held by the loading claw cylinder 94 directly below the pressing nozzle 64. At this time, the servo electric cylinder 62 drives the pressing nozzle 64 to descend, placing it directly above the eccentric shaft. The vacuum generator of the pressing nozzle 64 then activates, and the pressing nozzle 64 sucks up the eccentric shaft. The loading robot 9 returns to its initial position. Simultaneously, the piston rod of the pressing lifting cylinder 71 extends, pushing the pressing inclined block 72 along the linear guide rail 73. The linear guide rail 73 lifts the lifting rod 304 upwards, and also lifts the product within the product positioning block 303. Finally, the pressing nozzle 64 on the servo electric cylinder 62 moves downward to press the eccentric shaft into the product (i.e., the motor shaft). After pressing is complete, the pressing device 6 and the pressing lifting mechanism 7 return to their initial positions, and the central rotary slide 31 drives the turntable 32 to rotate 180°. The gripper on the four-axis robot 4 picks up and places the pressed product onto the carrier 20, which then flows via a conveyor belt to below the camera 12. The camera 12 takes a picture to determine whether the pressing is faulty. Finally, the product flows out of the station via a conveyor belt.

[0044] The eccentric shaft servo pressing mechanism described in this invention is mainly used in automotive pump assembly lines. It requires fully automated feeding and pressing of the eccentric shaft on the pump motor. Considering that the eccentric shaft is a regular, rigid material, a vibratory feeder can be used for feeding. Because of the high requirements for cycle time, a two-station rotary table mechanism can be used. From the perspective of compact space utilization, the product loading and unloading uses a four-axis robot + gripper method.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An eccentric shaft servo press-fitting mechanism, characterized in that: include, Press fitting machine; A belt conveyor line with several carriers on which products to be pressed are placed. The section of the belt conveyor line that passes through the pressing machine is divided into a material feeding position and a material discharging position. A rotary table is set on the press-fitting machine platform. Two press-fitting fixtures are provided on the rotary table. The rotary table drives the press-fitting fixtures to rotate intermittently by 180°. The press-fitting fixtures are used to place the products to be press-fitted. A four-axis robot is mounted on a press machine platform. The four-axis robot is connected to a gripper assembly. The four-axis robot drives the gripper assembly to grab the product to be pressed from the material picking position into the press loading container. The four-axis robot also drives the gripper assembly to grab the product with the eccentric shaft already pressed in the press loading container and move it to the material unloading position. A centering assembly is mounted on the press-fitting machine platform, and the centering assembly is used to position the rotary table; A pressing device, which is installed on a pressing machine platform, is used to press an eccentric shaft into the product to be pressed in the pressing device; A pressing and lifting mechanism is used to lift the product to be pressed in the pressing device upward when the pressing device presses the eccentric shaft. A vibratory feeder has several eccentric shafts inside, and the vibratory feeder is used to feed the eccentric shafts one by one. A feeding robot is mounted on a pressing device. The feeding robot is used to grab the eccentric shaft from the discharge end of the vibratory feeder and feed it to the pressing device. The rotary table includes a rotary slide and a turntable. The rotary slide is mounted on the press machine platform. The turntable is a disc and has two centering grooves. The two centering grooves are located on the same diameter and on the outer circumference of the turntable. The two press loaders are mounted on the turntable and are located on the same diameter of the turntable. The press-loading device includes a lower base plate, an upper support plate, a product positioning block, a lifting rod, a second guide column, and a second guide sleeve. The lower base plate is fixedly installed on the turntable. The upper support plate is connected to the second guide column. The second guide sleeve is disposed on the lower base plate. The second guide column and the second guide sleeve are slidably connected. The product positioning block is fixedly disposed on the upper support plate and is used to place the product. The upper end of the lifting rod is connected to the upper support plate, and the press-loading lifting mechanism is in contact with the lower end of the lifting rod. The centering assembly includes a centering support, a centering cylinder, a connecting block, and an insert block. The centering support is fixedly installed on the press machine platform. The centering cylinder is set on the centering support. The connecting block is connected to the output end of the centering cylinder. The insert block is installed on the connecting block. The centering cylinder drives the insert block to insert into the centering groove to achieve the positioning of the turntable. The pressing and lifting mechanism includes a pressing and lifting cylinder, a pressing inclined block, a linear guide rail, and a slider. The pressing and lifting cylinder and the linear guide rail are both mounted on the pressing machine platform. One end of the pressing inclined block is connected to the output end of the pressing and lifting cylinder. The slider is mounted on the pressing inclined block and is located on the linear guide rail. The slider can slide along the linear guide rail. The pressing inclined block is in contact with the lifting rod. The lower end of the lifting rod is provided with an inclined surface one, and the upper end of the pressing inclined block is provided with an inclined surface two. The inclined surface one and the inclined surface two are in contact.

2. The eccentric shaft servo press-fitting mechanism according to claim 1, characterized in that: The pressing machine platform is equipped with lifting and positioning devices at positions corresponding to the material pick-up and material unloading positions. The lifting and positioning devices are used to lift the carrier and position the carrier.

3. The eccentric shaft servo press-fitting mechanism according to claim 1, characterized in that: The gripper assembly includes a gripper mounting frame, a gripper cylinder one, a drive cylinder one, and a gripper cylinder two. The gripper mounting frame is connected to the four-axis robot. Both gripper cylinder one and drive cylinder one are mounted on the gripper mounting frame. The output end of gripper cylinder two is connected to drive cylinder one. Drive cylinder one drives gripper cylinder two to avoid being positioned when gripper cylinder one grips the product.

4. The eccentric shaft servo press-fitting mechanism according to claim 1, characterized in that: The pressing device includes a pressing support frame, a servo electric cylinder, a suction nozzle mounting plate, and a pressing suction nozzle. The pressing support frame is fixedly installed on the pressing machine platform. The servo electric cylinder is installed on the pressing support frame. The suction nozzle mounting plate is connected to the output end of the servo electric cylinder. The pressing suction nozzle is set on the suction nozzle mounting plate and is used to pick up and press the eccentric shaft.

5. The eccentric shaft servo press-fitting mechanism according to claim 1, characterized in that: The loading robot includes a loading horizontal cylinder, a loading bracket, a rotary cylinder, and a loading gripper cylinder. The loading bracket is connected to the output end of the loading horizontal cylinder. The rotary cylinder is mounted on the loading bracket. The loading gripper cylinder is connected to the output end of the rotary cylinder. The rotary cylinder drives the loading gripper cylinder to rotate 90°. The loading gripper cylinder is used to grab the eccentric shaft from the discharge end of the vibratory feeder and feed it to the pressing device.

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