A motion mechanism based on error compensation

Abstract

The present invention discloses a motion mechanism based on error compensation, which relates to the technical field of cam mechanisms and includes a support base, a cam assembly, and a push head assembly. A placement box is connected to the right side of the top of the support base. The cam assembly is placed inside the placement box. A push-out seat is connected to the left end of the placement box. In the present invention, the first infrared sensor can sense the position where the push head is pushed out. When the cam is severely worn and causes a change in the height position where the push head is pushed out, the first infrared sensor will not be able to sense the position of the push head. At this time, the first infrared sensor will transmit an abnormal signal to the control center. After receiving the abnormal signal from the first infrared sensor, the control center will control the first electric push rod to work, which can make the lifting plate drive the first motor to move upward. After the first motor moves upward, it can make the rotating shaft slide inside the displacement groove, which enables the rotating shaft to push the cam upward to compensate for the spacing error caused by wear.

Description

Technical Field

[0001] The present invention relates to the technical field of cam mechanisms, and specifically to a motion mechanism based on error compensation. Background Art

[0002] The cam mechanism is a common motion mechanism. The cam mechanism is a higher pair mechanism composed of three basic components: a cam, a follower, and a frame. The cam is a component with a curved profile or groove, generally the driving part, which makes a uniform rotational motion or a reciprocating linear motion. The cam mechanism is widely used in light industry, textile, food, transportation, mechanical transmission and other fields.

[0003] Common cam mechanisms on the market usually do not have an error compensation function. During the rotation of the cam, it needs to frequently rub against the follower. During the long-term friction process, the overall diameter of the cam will become smaller, which will cause the pushing position of the follower to change, resulting in errors when the cam mechanism operates. Summary of the Invention

[0004] The purpose of the present invention is to provide a motion mechanism based on error compensation to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A motion mechanism based on error compensation, including a support base, a cam assembly, and a push head assembly. A placement box is connected to the right side of the top of the support base. The cam assembly is placed inside the placement box. The left end of the placement box is connected to a push-out seat, and a displacement groove is opened in the inner side of the right part of the push-out seat. The push head assembly is placed outside the top of the cam assembly. The push head assembly includes a push head, a second electric push rod, and a push seat. A second electric push rod is placed in the middle of the inner side of the push head, and the output end of the second electric push rod is connected to the push seat. A fixing seat is connected to the outer side of the right part of the push-out seat, and a second motor is arranged inside the fixing seat. The output end of the second motor is connected to a rotating table, and a visual sensor is arranged on the outer side of the right part of the rotating table.

[0006] Further, the cam assembly includes a first electric push rod, a lifting plate, a first motor, a rotating shaft, and a cam. The output end of the first electric push rod is connected to the lifting plate, and a first motor is arranged on the outer side of the top of the lifting plate. The output end of the first motor is connected to the rotating shaft, and the outer end of the rotating shaft is connected to the cam.

[0007] Further, the first electric push rod and the lifting plate are vertically distributed, and the lifting plate and the first motor are fixedly connected by bolts.

[0008] Further, the rotating shaft is sleeved and connected to the cam, and the rotating shaft is slidably connected to the displacement groove.

[0009] Further, the outer surface of the cam is in contact with the bottom of the push head, and the outer surface of the push head is in contact with the inner surface of the push-out seat.

[0010] Further, the second electric push rod and the push seat are vertically distributed, and the push seat is sleeved and connected with the push head.

[0011] Further, a third motor is connected to the outer side of the top of the turntable, a lead screw is connected to the output end of the third motor, a bearing seat is connected to the outer end of the lead screw, a connecting plate is arranged at the outer end of the bearing seat, a first infrared sensor is connected to the outer side of the bottom of the connecting plate, a second infrared sensor is arranged at the outer side of the top of the first infrared sensor, and a chute is opened at the outer end of the left part of the turntable.

[0012] Further, the connecting plate is fixedly connected with the first infrared sensor and the second infrared sensor, and the connecting plate is slidably connected with the chute.

[0013] Further, the position height of the first infrared sensor is the same as the highest push-out height of the push head, and the second infrared sensor is higher than the highest push-out height of the push head.

[0014] Further, the output ends of the first infrared sensor, the second infrared sensor and the vision sensor are connected with a control center, and the control center is used for automatically controlling the first electric push rod and the second electric push rod.

[0015] The present invention provides a motion mechanism based on error compensation, which has the following beneficial effects: when the cam is severely worn and causes the position of the push head's push-out height to change, the first infrared sensor will not be able to sense the position of the push head. At this time, the first infrared sensor will transmit an abnormal signal to the control center. After receiving the abnormal signal from the first infrared sensor, the control center will control the first electric push rod to work. After the first electric push rod works, it can make the lifting plate drive the first motor to move upward. After the first motor moves upward, it can make the rotating shaft slide inside the displacement groove, which enables the rotating shaft to push the cam upward to compensate for the spacing error caused by wear. If the first infrared sensor senses the position of the push head, it means that the push head's push-out position meets the standard. If the second infrared sensor also senses the position of the push head, it means that the compensation distance of the push head is too large and the push-out is too deep. At this time, the first electric push rod can fine-tune the position of the push head again, so that the maximum push-out position of the push head is adjusted to a position where the first infrared sensor can sense it, but the second infrared sensor cannot sense it. By the simultaneous working and sensing of the first infrared sensor and the second infrared sensor, the accuracy of the error compensation distance can be effectively guaranteed, and at the same time, the situation that the push-out distance of the push head is too deep due to excessive error compensation and affects the normal operation of the motion mechanism can also be effectively reduced.

[0016] 1. The position height of the first infrared sensor of the present invention is at the highest point where the push head is pushed out. After the push head is pushed out, the first infrared sensor can sense the position where the push head is pushed out. When the cam is severely worn and the height position where the push head is pushed out changes, the first infrared sensor will not be able to sense the position of the push head. At this time, the first infrared sensor will transmit an abnormal signal to the control center. After receiving the abnormal signal from the first infrared sensor, the control center will control the first electric push rod to work. After the first electric push rod works, it can make the lifting plate drive the first motor to move upward. After the first motor moves upward, it can make the rotating shaft slide inside the displacement groove, which enables the rotating shaft to push the cam upward to compensate for the pitch error caused by wear. Through the above operations, the motion mechanism can automatically check for errors during use and automatically compensate for the errors after they occur, which can greatly improve the stability of the motion mechanism during operation.

[0017] 2. After the motion mechanism of the present invention completes error compensation, the cam will drive the push head to be pushed out again. The first infrared sensor and the second infrared sensor will work simultaneously to check the position of the current push head. At this time, if the first infrared sensor senses the position of the push head, it means that the position where the push head is pushed out meets the standard. If the second infrared sensor also senses the position of the push head, it means that the compensation distance of the push head is too large and it is pushed out too deep. At this time, the first electric push rod can fine-tune the position of the push head again to adjust the maximum push-out position of the push head to a position where the first infrared sensor can sense it, but the second infrared sensor cannot sense it. Through the simultaneous work and sensing of the first infrared sensor and the second infrared sensor, the accuracy of the error compensation distance can be effectively guaranteed, and at the same time, the situation where the push head is pushed out too deep due to excessive error compensation, which affects the normal operation of the motion mechanism, can also be effectively reduced.

[0018] 3. Through the work of the first electric push rod of the present invention, the position of the cam can be changed, which enables the user to change the push-out distance of the push head according to actual usage requirements, which can improve the flexibility of use of the motion mechanism. In addition, by driving the lead screw to work with the third motor, the bearing block can slide up and down on its surface. During the sliding process of the bearing block, it can drive the connecting plate to slide on the surface of the rotating table through the chute, which enables the height positions of the first infrared sensor and the second infrared sensor to be changed along with the change of the extreme push-out position of the push head. This can ensure that no matter which push-out position the push head is in, the first infrared sensor and the second infrared sensor can effectively detect its position, which improves the reliability of the motion mechanism during use.

[0019] 4. The second motor inside the fixed seat of the present invention operates to enable the rotating platform to rotate. This allows the visual sensor at the right end of the rotating platform to face the pusher head side and capture and detect the position of the pusher seat. If the visual sensor detects that the pusher seat is severely worn and causes the entire pusher head to be concave, when the second electric push rod operates, it can drive the entire pusher seat to slide inside the pusher head until the visual sensor detects that the pusher seat moves to the top of the pusher head and the concavity disappears, then the second electric push rod will stop working. This enables the motion device to compensate for the error caused by the wear of the pusher seat, thereby further improving the use stability of the motion device. In addition, after the pusher seat is pushed out from the inside of the pusher head, the second motor drives the rotating platform to slightly deflect sideways. This changes the detection range of the first infrared sensor and the second infrared sensor from detecting the entire pusher head to detecting the edge position of the pusher head, which can effectively avoid detection errors caused by the first infrared sensor and the second infrared sensor detecting the protruding pusher seat.

[0020] 5. The pusher seat of the present invention is fixedly connected to the inside of the pusher head through the second electric push rod. After the second electric push rod completely pushes the pusher seat out of the pusher head, by loosening the fixing bolts between the pusher seat and the second electric push rod, the pusher seat can be disassembled and separated from the second electric push rod. This enables the motion mechanism to replace pusher seats of different materials according to the usage scenario, which can improve the use flexibility of the motion mechanism. In addition, during the normal operation of the motion mechanism, when the pusher seat pushes the second electric push rod to displace, the motion mechanism can extend the motion distance without changing the extreme pushing position of the pusher head. This enables the motion mechanism to change the motion distance without triggering the induction alarms of the first infrared sensor and the second infrared sensor, thereby improving the use flexibility of the motion mechanism during actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view overall structure schematic diagram of a motion mechanism based on error compensation of the present invention;

[0022] Figure 2 is a side view structure schematic diagram of a motion mechanism based on error compensation of the present invention;

[0023] Figure 3 is a overall structure schematic diagram of the rotating platform of a motion mechanism based on error compensation of the present invention;

[0024] Figure 4 is a schematic diagram of the pusher head error compensation process of a motion mechanism based on error compensation of the present invention;

[0025] Figure 5 is a schematic diagram of the pusher seat error compensation process of a motion mechanism based on error compensation of the present invention.

[0026] In the figure: 1, support base; 2, placement box; 3, cam assembly; 301, first electric push rod; 302, lifting plate; 303, first motor; 304, rotating shaft; 305, cam; 4, pushing seat; 5, displacement groove; 6, push head assembly; 601, push head; 602, second electric push rod; 603, push seat; 7, fixed seat; 8, second motor; 9, rotating table; 10, vision sensor; 11, third motor; 12, lead screw; 13, bearing seat; 14, connecting plate; 15, first infrared sensor; 16, second infrared sensor; 17, sliding groove; 18, control center. Detailed implementation manner

[0027] Please refer to Figures 1-5 , the present invention provides a technical solution: a motion mechanism based on error compensation, including a support base 1, a cam assembly 3 and a push head assembly 6. The right side of the top of the support base 1 is connected with a placement box 2. The cam assembly 3 is placed inside the placement box 2. The left end of the placement box 2 is connected with a pushing seat 4. A displacement groove 5 is provided inside the right part of the pushing seat 4. The push head assembly 6 is placed outside the top of the cam assembly 3. The push head assembly 6 includes a push head 601, a second electric push rod 602 and a push seat 603. The middle end of the inner side of the push head 601 is provided with the second electric push rod 602, and the output end of the second electric push rod 602 is connected with the push seat 603. The outer side of the right part of the pushing seat 4 is connected with a fixed seat 7, and a second motor 8 is arranged inside the fixed seat 7. The output end of the second motor 8 is connected with a rotating table 9, and a vision sensor 10 is arranged outside the right part of the rotating table 9.

[0028] Please refer to Figures 1-5, the cam assembly 3 includes a first electric push rod 301, a lifting plate 302, a first motor 303, a rotating shaft 304 and a cam 305. The output end of the first electric push rod 301 is connected to the lifting plate 302, and a first motor 303 is arranged on the outer side of the top of the lifting plate 302. The output end of the first motor 303 is connected to the rotating shaft 304, and the outer end of the rotating shaft 304 is connected to the cam 305. The first electric push rod 301 and the lifting plate 302 are vertically distributed, and the lifting plate 302 and the first motor 303 are fixedly connected by bolts. The rotating shaft 304 is sleeved with the cam 305, and the rotating shaft 304 is slidably connected to the displacement groove 5. The outer surface of the cam 305 is attached to the bottom of the push head 601, and the outer surface of the push head 601 is attached to the inner surface of the pushing seat 4. The second electric push rod 602 and the pushing seat 603 are vertically distributed, and the pushing seat 603 is sleeved with the push head 601. The outer side of the top of the rotating table 9 is connected to a third motor 11, and the output end of the third motor 11 is connected to a lead screw 12. The outer end of the lead screw 12 is connected to a bearing seat 13. A connecting plate 14 is arranged on the outer side of the bearing seat 13. The outer side of the bottom of the connecting plate 14 is connected to a first infrared sensor 15, and a second infrared sensor 16 is arranged on the outer side of the top of the first infrared sensor 15. A chute 17 is opened at the outer end of the left part of the rotating table 9. The connecting plate 14 is fixedly connected to the first infrared sensor 15 and the second infrared sensor 16, and the connecting plate 14 is slidably connected to the chute 17. The position height of the first infrared sensor 15 is the same as the highest pushing height of the push head 601, and the second infrared sensor 16 is higher than the highest pushing height of the push head 601. The output ends of the first infrared sensor 15, the second infrared sensor 16 and the vision sensor 10 are connected to a control center 18, and the control center 18 is used for automatically controlling the first electric push rod 301 and the second electric push rod 602.

[0029] The specific operation is as follows. By the operation of the first motor 303 inside the placement box 2, the rotating shaft 304 can drive the cam 305 to rotate. The outer surface of the cam 305 is in contact with the outer surface of the push head 601, and the push head 601 is sleeved and connected to the push-out seat 4. This enables the cam 305 to drive the push head 601 to repeatedly lift and push out inside the push-out seat 4 during rotation, so that the motion mechanism can work normally. The position height of the first infrared sensor 15 is at the highest point where the push head 601 is pushed out. After the push head 601 is pushed out, the first infrared sensor 15 can sense the position where the push head 601 is pushed out. When the cam 305 is severely worn and the height position where the push head 601 is pushed out changes, the first infrared sensor 15 will not be able to sense the position of the push head 601. At this time, the first infrared sensor 15 will transmit an abnormal signal to the control center 18. After receiving the abnormal signal from the first infrared sensor 15, the control center 18 will control the first electric push rod 301 to work. After the first electric push rod 301 works, it can make the lifting plate 302 drive the first motor 303 to move upward. After the first motor 303 moves upward, the rotating shaft 304 can slide inside the displacement groove 5, which enables the rotating shaft 304 to push the cam 305 to rise and compensate for the spacing error caused by wear. Through the above operations, the motion mechanism can automatically check for errors during use and automatically compensate for errors after they occur, which can greatly improve the stability of the motion mechanism during operation. After the motion mechanism completes error compensation, the cam 305 will drive the push head 601 to push out again, and the first infrared sensor 15 and the second infrared sensor 16 will work simultaneously to check the position where the current push head 601 is located. At this time, if the first infrared sensor 15 senses the position of the push head 601, it means that the position where the push head 601 is pushed out meets the standard. If the second infrared sensor 16 also senses the position of the push head 601, it means that the compensation distance of the push head 601 is too large and it is pushed out too deep. At this time, the first electric push rod 301 can fine-tune the position of the push head 601 again to adjust the maximum push-out position of the push head 601 to a position where the first infrared sensor 15 can sense it, but the second infrared sensor 16 cannot sense it. Through the simultaneous work and sensing of the first infrared sensor 15 and the second infrared sensor 16, the accuracy of the error compensation distance can be effectively guaranteed, and at the same time, the situation where the push head 601 is pushed out too deep due to excessive error compensation and affects the normal operation of the motion mechanism can be effectively reduced. By the work of the first electric push rod 301, the position of the cam 305 can be changed, which enables the user to change the push-out distance of the push head 601 according to actual usage requirements, which can improve the flexibility of use of the motion mechanism. In addition, by the work of the third motor 11 driving the lead screw 12, the bearing block 13 can slide up and down on its surface. During the sliding process of the bearing block 13, it can drive the connecting plate 14 to slide on the surface of the rotating table 9 through the sliding groove 17.This enables the height positions of the first infrared sensor 15 and the second infrared sensor 16 to be changed along with the change in the extreme position of the push head 601 being pushed out, which can ensure that no matter which push-out position the push head 601 is in, the first infrared sensor 15 and the second infrared sensor 16 can effectively detect its position, thus improving the reliability during the use of this motion mechanism. During the process of the push head 601 being pushed out, the main contact point between it and other objects is the push seat 603 part, which causes the push seat 603 to wear after long-term use. During the use of this motion mechanism, the second motor 8 inside the fixed seat 7 works to enable the rotating platform 9 to rotate, which enables the visual sensor 10 at the right end of the rotating platform 9 to face the side of the push head 601 and take pictures and detect the position of the push seat 603. If the visual sensor 10 detects that the push seat 603 is severely worn and causes the overall push head 601 to be concave, through the operation of the second electric push rod 602, it can drive the entire push seat 603 to slide inside the push head 601 until the visual sensor 10 detects that the push seat 603 has moved to the top of the push head 601 and the inner concavity disappears, then the second electric push rod 602 will stop working. This enables the motion device to compensate for the error caused by the wear of the push seat 603, thereby further improving the use stability of the motion device. In addition, after the push seat 603 is pushed out from the inside of the push head 601, the second motor 8 will drive the rotating platform 9 to slightly deflect, which changes the detection range of the first infrared sensor 15 and the second infrared sensor 16 from detecting the entire push head 601 to detecting the edge position of the push head 601, which can effectively avoid the detection error caused by the first infrared sensor 15 and the second infrared sensor 16 detecting the protruding push seat 603. The push seat 603 is fixedly connected to the inside of the push head 601 through the second electric push rod 602. After the second electric push rod 602 completely pushes the push seat 603 out of the push head 601, by loosening the fixing bolt between the push seat 603 and the second electric push rod 602, the push seat 603 can be disassembled and separated from the second electric push rod 602, which enables the motion mechanism to replace the push seat 603 of different materials according to the use scenario, thus improving the use flexibility of the motion mechanism. In addition, during the normal operation of the motion mechanism, by the push seat 603 pushing the second electric push rod 602 to displace, the motion mechanism can extend the motion distance without changing the extreme push-out position of the push head 601, which enables the motion mechanism to change the motion distance without triggering the induction alarm of the first infrared sensor 15 and the second infrared sensor 16, thus improving the use flexibility of this motion mechanism during actual use.

[0030] In summary, when the motion mechanism based on error compensation is in use, first, the first motor 303 inside the placement box 2 works, enabling the rotating shaft 304 to drive the cam 305 to rotate. The outer surface of the cam 305 is in contact with the outer surface of the push head 601, and the push head 601 is sleeved and connected to the pushing seat 4. This allows the cam 305 to drive the push head 601 to repeatedly lift and push inside the pushing seat 4 during rotation, enabling the normal operation of the motion mechanism.

[0031] Then, after the push head 601 is pushed out, the first infrared sensor 15 can sense the position where the push head 601 is pushed out. When the cam 305 is severely worn and the height position where the push head 601 is pushed out changes, the first infrared sensor 15 will be unable to sense the position of the push head 601. At this time, the first infrared sensor 15 will transmit an abnormal signal to the control center 18. After receiving the abnormal signal from the first infrared sensor 15, the control center 18 will control the first electric push rod 301 to work. After the first electric push rod 301 works, it can make the lifting plate 302 drive the first motor 303 to move upward. After the first motor 303 moves upward, it can make the rotating shaft 304 slide inside the displacement slot 5, enabling the rotating shaft 304 to push the cam 305 upward to compensate for the spacing error caused by wear. Through the above operations, the motion mechanism can automatically check for errors during use and automatically compensate for errors after they occur, greatly improving the stability of the motion mechanism during operation.

[0032] Next, after the motion mechanism completes error compensation, the cam 305 will drive the push head 601 to be pushed out again, and the first infrared sensor 15 and the second infrared sensor 16 will work simultaneously to check the position of the current push head 601. At this time, if the first infrared sensor 15 senses the position of the push head 601, it means that the position where the push head 601 is pushed out meets the standard. If the second infrared sensor 16 also senses the position of the push head 601, it means that the compensation distance of the push head 601 is too large and it is pushed out too deep. At this time, the first electric push rod 301 can fine-tune the position of the push head 601 again, adjusting the maximum push position of the push head 601 to a position where the first infrared sensor 15 can sense it, but the second infrared sensor 16 cannot sense it. Through the simultaneous operation and sensing of the first infrared sensor 15 and the second infrared sensor 16, the accuracy of the error compensation distance can be effectively guaranteed, and at the same time, the situation where the excessive error compensation causes the push head 601 to be pushed out too deep and affects the normal operation of the motion mechanism can be effectively reduced.

[0033] Subsequently, by the operation of the first electric push rod 301, the position of the cam 305 can be changed, which enables the user to change the pushing distance of the push head 601 according to actual usage requirements, improving the flexibility of use of the motion mechanism. In addition, by the operation of the third motor 11 driving the lead screw 12, the bearing block 13 can slide up and down on its surface. During the sliding process of the bearing block 13, it can drive the connecting plate 14 to slide on the surface of the rotating table 9 through the sliding groove 17, which enables the height positions of the first infrared sensor 15 and the second infrared sensor 16 to be changed with the change of the extreme pushing limit point of the push head 601. This can ensure that no matter what pushing position the push head 601 is in, the first infrared sensor 15 and the second infrared sensor 16 can effectively detect its position, thus improving the reliability during the use of the motion mechanism.

[0034] Then, during the use of the motion mechanism, by the operation of the second motor 8 inside the fixed seat 7, the rotating table 9 can be rotated, which enables the visual sensor 10 at the right end of the rotating table 9 to face the side of the push head 601 and detect the position of the push seat 603 by taking pictures. If the visual sensor 10 detects that the push seat 603 is severely worn and causes the overall push head 601 to be concave, by the operation of the second electric push rod 602, it can drive the entire push seat 603 to slide inside the push head 601 until the visual sensor 10 detects that the push seat 603 moves to the top of the push head 601 and the concavity disappears, then the second electric push rod 602 will stop working. This enables the motion device to compensate for the error caused by the wear of the push seat 603, further improving the use stability of the motion device. In addition, after the push seat 603 is pushed out from the inside of the push head 601, the second motor 8 will drive the rotating table 9 to be slightly deflected, which changes the detection range of the first infrared sensor 15 and the second infrared sensor 16 from detecting the entire push head 601 to detecting the edge position of the push head 601, effectively avoiding detection errors caused by the first infrared sensor 15 and the second infrared sensor 16 detecting the protruding push seat 603.

[0035] Finally, after the second electric push rod 602 completely pushes out the push seat 603 from the push head 601, by loosening the fixing bolt between the push seat 603 and the second electric push rod 602, the push seat 603 can be disassembled and separated from the second electric push rod 602, which enables the motion mechanism to replace the push seat 603 of different materials according to the usage scenario, improving the flexibility of use of the motion mechanism. In addition, during the normal operation of the motion mechanism, by the push seat 603 pushing the second electric push rod 602 to displace, the motion mechanism can extend the motion distance without changing the extreme pushing position of the push head 601, enabling the motion mechanism to change the motion distance without triggering the induction alarm of the first infrared sensor 15 and the second infrared sensor 16, thus improving the flexibility of use of the motion mechanism during actual use.

Claims

1. A motion mechanism based on error compensation, characterized in that, it includes a support base (1), a cam assembly (3) and a push head assembly (6). A placement box (2) is connected to the right side of the top of the support base (1). The cam assembly (3) is placed inside the placement box (2). The left end of the placement box (2) is connected to a push-out seat (4). A displacement groove (5) is provided inside the right part of the push-out seat (4). The push head assembly (6) is placed outside the top of the cam assembly (3). The push head assembly (6) includes a push head (601), a second electric push rod (602) and a push seat (603). A second electric push rod (602) is placed in the middle of the inner side of the push head (601), and the output end of the second electric push rod (602) is connected to the push seat (603). A fixed seat (7) is connected to the outside of the right part of the push-out seat (4), and a second motor (8) is arranged inside the fixed seat (7). The output end of the second motor (8) is connected to a rotating table (9), and a visual sensor (10) is arranged outside the right part of the rotating table (9). A third motor (11) is connected to the outside of the top of the rotating table (9), and the output end of the third motor (11) is connected to a lead screw (12). The outer end of the lead screw (12) is connected to a bearing seat (13). A connecting plate (14) is arranged outside the outer end of the bearing seat (13). A first infrared sensor (15) is connected to the outside of the bottom of the connecting plate (14), and a second infrared sensor (16) is arranged outside the top of the first infrared sensor (15). A chute (17) is provided at the outer end of the left part of the rotating table (9). The position height of the first infrared sensor (15) is the same as the highest pushing height of the push head (601), and the second infrared sensor (16) is higher than the highest pushing height of the push head (601). The output ends of the first infrared sensor (15), the second infrared sensor (16) and the visual sensor (10) are connected to a control center (18), and the control center (18) is used for automatically controlling the first electric push rod (301) and the second electric push rod (602).

2. The motion mechanism based on error compensation according to claim 1, characterized in that, the cam assembly (3) includes a first electric push rod (301), a lifting plate (302), a first motor (303), a rotating shaft (304) and a cam (305). The output end of the first electric push rod (301) is connected to the lifting plate (302), and a first motor (303) is arranged outside the top of the lifting plate (302). The output end of the first motor (303) is connected to the rotating shaft (304), and the outer end of the rotating shaft (304) is connected to the cam (305).

3. The motion mechanism based on error compensation according to claim 2, characterized in that, the first electric push rod (301) and the lifting plate (302) are vertically distributed, and the lifting plate (302) and the first motor (303) are fixedly connected by bolts.

4. The motion mechanism based on error compensation according to claim 2, characterized in that, The rotating shaft (304) is sleeved and connected with the cam (305), and the rotating shaft (304) is slidably connected with the displacement groove (5).

5. A motion mechanism based on error compensation according to claim 1, wherein, The outer surface of the cam (305) is in contact with the bottom of the push head (601), and the outer surface of the push head (601) is in contact with the inner surface of the push seat (4).

6. A motion mechanism based on error compensation according to claim 1, wherein, The second electric push rod (602) and the push seat (603) are vertically distributed, and the push seat (603) is sleeved and connected with the push head (601).

7. A motion mechanism based on error compensation according to claim 1, wherein, The connecting plate (14) is fixedly connected with the first infrared sensor (15) and the second infrared sensor (16), and the connecting plate (14) is slidably connected with the sliding groove (17).

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