Upper slicing system simulation operation device

Abstract

The present invention provides an upper slicing system simulation operation device, which relates to the field of medical device technology. The upper slicing system simulation operation device includes a top plate, the right end of the top plate is fixedly connected to an end cover, the rear side of the right end of the mounting plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft through a coupling, the left outer side and the right outer side of the rotating shaft are fixedly connected to a first bevel gear, the left side of the first bevel gear is meshed with a second bevel gear, the inner side of the second bevel gear is fixedly connected to a screw rod, the outer side of the screw rod is threadedly connected to a ball screw nut, the left outer side of the first drive shaft is fixedly connected to a first gate, and the right outer side of the second drive shaft is fixedly connected to a second gate. By repeatedly opening and closing the first gate and the second gate, a pre-operation operation is performed to simulate the use state of the upper slicing system, eliminate residual stress in parts, and ensure the detection accuracy of the upper slicing system, which is worthy of vigorous promotion.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a simulation operation device for an upper slicing system. Background Art

[0002] CT is a technology used to provide images of internal organs and bones of the body. It obtains CT images by emitting rays from different directions and scanning a certain thickness of a certain part of the human body. The upper slicing system is an important component in the medical CT machine. The system has very high requirements on the stability and repeatable accuracy of the moving parts.

[0003] The existing upper slicing system can usually meet the design requirements during static testing. However, after the precision-machined parts are assembled, there is a problem of unstable output image status during the operation and debugging of the entire machine. The CT machine cannot meet the acceptance standards. The upper slicing system lacks an effective simulation operation device, and the residual stress of the parts in the upper slicing system affects the detection accuracy. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an upper slicing system simulation operation device, which solves the problem that the accuracy of the upper slicing system is affected by residual stress.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an upper slicing system simulation operation device, comprising a top plate, an end cover is fixedly connected to the right end of the top plate, a mounting plate is fixedly connected to the bottom end of the right part of the top plate, a motor is fixedly connected to the rear side of the right end of the mounting plate, the output end of the motor is fixedly connected to the rotating shaft through a coupling, the left outer side and the right outer side of the rotating shaft are fixedly connected to the first bevel gear, the left side of the first bevel gear is meshed with the second bevel gear, the inner side of the second bevel gear is fixedly connected to the lead screw, the outer side of the lead screw is threadedly connected to the ball screw nut, the bottom end of the ball screw nut on the rear side of the top plate is fixedly connected to the first drive shaft, the left outer side of the first drive shaft is fixedly connected to the first gate, the bottom end of the ball screw nut on the front side of the top plate is fixedly connected to the second drive shaft, the right outer side of the second drive shaft is fixedly connected to the second gate, the left bottom end of the inner side of the end cover is fixedly connected to the limit plate, the bottom end of the left side of the top plate is fixedly connected to the controller, the rear side of the controller is provided with a first proximity switch, and the front side of the controller is provided with a second proximity switch.

[0006] Preferably, the first proximity switch and the second proximity switch are both arranged at the bottom end of the top plate, the first proximity switch is located above the first drive shaft, and the second proximity switch is located above the second drive shaft, and the first proximity switch and the second proximity switch are both non-contact proximity switches.

[0007] Preferably, a push block is fixedly connected to the bottom end of the first gate, a third proximity switch is arranged on the left side of the push block, and a fourth proximity switch is arranged on the right side of the push block. The third proximity switch and the fourth proximity switch are both arranged at the inner bottom end of the end cover, and the third proximity switch and the fourth proximity switch are both contact proximity switches.

[0008] Preferably, the left parts of the first drive shaft and the second drive shaft are both slidably connected to the limit plate, and the right parts of the first drive shaft and the second drive shaft are both slidably connected to the mounting plate.

[0009] Preferably, the front portion of the first gate is slidably connected to the second drive shaft, and the rear portion of the second gate is slidably connected to the first drive shaft.

[0010] Preferably, the left end of the screw rod is rotatably connected to the bottom end of the top plate, the screw rod is rotatably connected to the mounting plate, and the front end of the rotating shaft is rotatably connected to the right end of the mounting plate.

[0011] Preferably, a first baffle is fixedly connected to the bottom of the left end of the top plate, second baffles are fixedly connected to both front and rear ends of the top plate, the mounting plate and the first baffle are fixedly connected between the two second baffles, the mounting plate, the first baffle and the two second baffles are fixedly connected to the inner side of the end cover, the limit plate is fixedly connected to the first baffle through a connecting rod, and the limit plate is fixedly connected to the two second baffles through a connecting rod.

[0012] Preferably, a buzzer is provided at the bottom of the right end of the first baffle, and the controller is electrically connected to the first proximity switch, the second proximity switch, the third proximity switch, the fourth proximity switch, the motor and the buzzer.

[0013] Working principle: The motor drives the two first bevel gears to rotate through the coupling and the rotating shaft. The two first bevel gears cooperate with the two second bevel gears to drive the two screws to rotate. The two screws rotate in opposite directions. The first drive shaft and the second drive shaft slidingly connected to the mounting plate and the limit plate limit the rotation of the two ball screw nuts, so that the two screws drive the two ball screw nuts to move left and right respectively. The two ball screw nuts move in opposite directions. The ball screw nut on the rear side of the top plate drives the first drive shaft to move left and right, and the ball screw nut on the front side of the top plate drives the second drive shaft to move left and right. The movement directions of the first drive shaft and the second drive shaft are opposite, so that the first drive shaft and the second drive shaft drive the first gate and the second gate to move left and right respectively, and the first proximity switch and the second proximity switch respectively detect Measure the position of the first drive shaft and the second drive shaft and adjust the direction of the motor output end, so that the first gate and the second gate that have been preliminarily assembled can be repeatedly opened and closed in a cold state to simulate the working state of the gate of the upper slicing system and release the residual stress. After the simulated operation, remove the end cover, check and adjust the connection between the first drive shaft and the second drive shaft and the first gate, the second gate, the mounting plate and the limit plate to avoid the residual stress of the upper slicing system affecting the stability of the output image. If the push block touches the third proximity switch or the fourth proximity switch, it means that the first gate and the second gate have moved excessively and the opening and closing state of the first gate and the second gate is abnormal. The controller starts the buzzer alarm and turns off the motor to avoid device failure due to detection failure of the first proximity switch and the second proximity switch.

[0014] The present invention provides a device for simulating operation of a slicing system. It has the following beneficial effects:

[0015] The motor of the present invention drives the rotating shaft to rotate through the coupling, and the rotating shaft drives the two screws to rotate through the two first bevel gears and the two second bevel gears, and the first drive shaft and the second drive shaft cooperate with the mounting plate and the limit plate to limit the rotation of the two ball screw nuts, so that the two screws respectively drive the two ball screw nuts to move left and right, so that the first drive shaft and the second drive shaft drive the first gate and the second gate to move left and right, and the first proximity switch and the second proximity switch cooperate with the first drive shaft and the second drive shaft to adjust the direction of the motor output end, use a single motor to drive the first drive shaft and the second drive shaft to move, ensure the synchronization of the movement of the first gate and the second gate, and make the first gate and the second gate open and close repeatedly, simulate the working state of the gate of the upper slicing system, realize the pre-operation operation before assembly, release the residual stress, and after the additional load simulation operation, check and adjust the connection between the first drive shaft and the second drive shaft and the first gate, the second gate, the mounting plate and the limit plate, so as to avoid the residual stress of the upper slicing system from affecting the stability of the output image and improve the detection accuracy of the upper slicing system.

[0016] The present invention detects the presence of the first drive shaft and the second drive shaft through the non-contact first proximity switch and the second proximity switch on the one hand, and detects whether the gate opening and closing state is abnormal through the contact third proximity switch and the fourth proximity switch in cooperation with the push block and the controller on the other hand. If an abnormal condition exists, the controller starts the buzzer alarm and turns off the motor, thereby avoiding malfunction of the device due to detection failure of the first proximity switch and the second proximity switch, improving the reliability of the upper slicing system simulation operation device, and worthy of vigorous promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0020] Figure 4 It is a top view of the structure of the present invention.

[0021] Among them, 1. top plate; 2. end cover; 3. mounting plate; 4. motor; 5. rotating shaft; 6. first bevel gear; 7. second bevel gear; 8. screw rod; 9. ball screw nut; 10. first drive shaft; 11. first gate; 12. second drive shaft; 13. second gate; 14. limit plate; 15. controller; 16. first proximity switch; 17. second proximity switch; 18. push block; 19. third proximity switch; 20. fourth proximity switch; 21. first baffle; 22. second baffle; 23. buzzer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0023] like Figure 1-3As shown, the embodiment of the present invention provides an upper slicing system simulation operation device, including a top plate 1, an end cover 2 is fixedly connected to the right end of the top plate 1, a mounting plate 3 is fixedly connected to the bottom end of the right part of the top plate 1, a motor 4 is fixedly connected to the rear side of the right end of the mounting plate 3, an output end of the motor 4 is fixedly connected to a rotating shaft 5 through a coupling, a first bevel gear 6 is fixedly connected to the outer side of the left part and the outer side of the right part of the rotating shaft 5, a second bevel gear 7 is meshedly connected to the left side of the first bevel gear 6, a screw rod 8 is fixedly connected to the inner side of the second bevel gear 7, a ball screw nut 9 is threadedly connected to the outer side of the screw rod 8, and the bottom end of the ball screw nut 9 on the rear side of the top plate 1 is fixedly connected There is a first drive shaft 10, the first drive shaft 10 is fixedly connected to the first gate 11 on the left outer side, the second drive shaft 12 is fixedly connected to the bottom end of the ball screw nut 9 on the front side of the top plate 1, the second drive shaft 12 is fixedly connected to the second gate 13 on the right outer side, the inner bottom left of the end cover 2 is fixedly connected to the limit plate 14, the left bottom of the top plate 1 is fixedly connected to the controller 15, the controller 15 is provided with a first proximity switch 16 on the rear side, and the controller 15 is provided with a second proximity switch 17 on the front side, the motor 4 drives the shaft 5 to rotate through the coupling, and the shaft 5 drives the two second bevel gears through the two first bevel gears 6 7 and the two screw rods 8 rotate, and the first drive shaft 10 and the second drive shaft 12 slidably connected with the mounting plate 3 and the limit plate 14 limit the rotation of the two ball screw nut seats 9, so that the two screw rods 8 respectively drive the two ball screw nut seats 9 to move left and right, the ball screw nut seat 9 on the rear side of the top plate 1 drives the first drive shaft 10 to move left and right, and the ball screw nut seat 9 on the front side of the top plate 1 drives the second drive shaft 12 to move left and right, and the movement directions of the first drive shaft 10 and the second drive shaft 12 are opposite, so that the first drive shaft 10 and the second drive shaft 12 respectively drive the first gate 11 and the second gate 13 to move left and right, and the first The proximity switch 16 and the second proximity switch 17 respectively detect the position of the first drive shaft 10 and the second drive shaft 12 and adjust the direction of the output end of the motor 4, so that the first gate 11 and the second gate 13 that have been preliminarily assembled and qualified are repeatedly opened and closed in a cold state to simulate the working state of the gate of the upper slicing system and release the residual stress. After the simulated operation, the end cover 2 is removed, and the connection between the first drive shaft 10 and the second drive shaft 12 and the first gate 11, the second gate 13, the mounting plate 3 and the limit plate 14 is checked and adjusted to avoid the residual stress of the upper slicing system from affecting the stability of the output image.

[0024] The first proximity switch 16 and the second proximity switch 17 are both arranged at the bottom end of the top plate 1, the first proximity switch 16 is located above the first drive shaft 10, and the second proximity switch 17 is located above the second drive shaft 12. The first proximity switch 16 and the second proximity switch 17 are both non-contact proximity switches, and the first proximity switch 16 and the second proximity switch 17 respectively detect the sliding of the first drive shaft 10 and the second drive shaft 12 relative to the limit plate 14. When the first proximity switch 16 cannot detect the first drive shaft 10, the first gate 11 and the second gate 13 are closed to the extreme position, and the first proximity switch 16 controls the motor 4 to change the rotation direction. When the second proximity switch 17 cannot detect the second drive shaft 12, the first gate 11 and the second gate 13 are opened to the extreme position, and the second proximity switch 17 controls the motor 4 to change the rotation direction, so that the first gate 11 and the second gate 13 are repeatedly opened and closed.

[0025] A push block 18 is fixedly connected to the bottom end of the first gate 11, a third proximity switch 19 is arranged on the left side of the push block 18, and a fourth proximity switch 20 is arranged on the right side of the push block 18. The third proximity switch 19 and the fourth proximity switch 20 are both arranged at the inner bottom end of the end cover 2. The third proximity switch 19 and the fourth proximity switch 20 are both contact proximity switches. If the push block 18 touches the third proximity switch 19 or the fourth proximity switch 20, it means that the first gate 11 and the second gate 13 are excessively moved, and the opening and closing states of the first gate 11 and the second gate 13 are abnormal. At the same time, the controller 15 starts the buzzer 23 to alarm and turns off the motor 4, so as to avoid device failure due to detection failure of the first proximity switch 16 and the second proximity switch 17, thereby improving the reliability of the upper slicing system simulation operation device.

[0026] The left parts of the first drive shaft 10 and the second drive shaft 12 are both slidably connected to the limit plate 14, and the right parts of the first drive shaft 10 and the second drive shaft 12 are both slidably connected to the mounting plate 3. The mounting plate 3 and the limit plate 14 limit the first drive shaft 10 and the second drive shaft 12.

[0027] The front part of the first gate 11 is slidably connected to the second drive shaft 12, and the rear part of the second gate 13 is slidably connected to the first drive shaft 10. The first drive shaft 10 and the second drive shaft 12 ensure that the parallelism of the first gate 11 and the second gate 13 is within a reasonable range.

[0028] The left end of the screw rod 8 is rotatably connected to the bottom end of the top plate 1 , the screw rod 8 is rotatably connected to the mounting plate 3 , the front end of the rotating shaft 5 is rotatably connected to the right end of the mounting plate 3 , and the mounting plate 3 serves to limit the screw rod 8 .

[0029] A first baffle plate 21 is fixedly connected to the bottom of the left end of the top plate 1, and second baffle plates 22 are fixedly connected to the front and rear ends of the top plate 1. The mounting plate 3 and the first baffle plate 21 are fixedly connected between the two second baffle plates 22. The mounting plate 3, the first baffle plate 21 and the two second baffle plates 22 are fixedly connected to the inner side of the end cover 2. The limit plate 14 is fixedly connected to the first baffle plate 21 through a connecting rod, and the limit plate 14 is fixedly connected to the two second baffle plates 22 through a connecting rod.

[0030] A buzzer 23 is disposed at the bottom of the right end of the first baffle 21 , and the controller 15 is electrically connected to the first proximity switch 16 , the second proximity switch 17 , the third proximity switch 19 , the fourth proximity switch 20 , the motor 4 and the buzzer 23 .

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An upper slicing system simulation operation device, comprising a top plate (1), characterized in that: The right end of the top plate (1) is fixedly connected to an end cover (2), the right bottom end of the top plate (1) is fixedly connected to a mounting plate (3), the rear side of the right end of the mounting plate (3) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to a rotating shaft (5) via a coupling, the left outer side and the right outer side of the rotating shaft (5) are fixedly connected to a first bevel gear (6), the left side of the first bevel gear (6) is meshingly connected to a second bevel gear (7), and the inside of the second bevel gear (7) is fixedly connected to a lead screw (8). The outer side of the screw rod (8) is threadedly connected to a ball screw nut (9); the bottom end of the ball screw nut (9) on the rear side of the top plate (1) is fixedly connected to a first drive shaft (10); the left outer side of the first drive shaft (10) is fixedly connected to a first gate (11); the bottom end of the ball screw nut (9) on the front side of the top plate (1) is fixedly connected to a second drive shaft (12); the right outer side of the second drive shaft (12) is fixedly connected to a second gate (13); the left inner bottom end of the end cover (2) is fixedly connected to a limit plate (14), a controller (15) is fixedly connected to the bottom left end of the top plate (1), a first proximity switch (16) is arranged on the rear side of the controller (15), and a second proximity switch (17) is arranged on the front side of the controller (15), the first proximity switch (16) and the second proximity switch (17) are both arranged at the bottom end of the top plate (1), the first proximity switch (16) is located above the first drive shaft (10), and the second proximity switch (17) is located above the second drive shaft (12), and the first proximity switch (16) and the second proximity switch (17) are both non-contact proximity switches, a push block (18) is fixedly connected to the bottom end of the first gate (11), a third proximity switch (19) is arranged on the left side of the push block (18), and a fourth proximity switch (20) is arranged on the right side of the push block (18), the third proximity switch (19) and the fourth proximity switch (20) are both arranged at the inner bottom end of the end cover (2), and the third proximity switch (19) and the fourth proximity switch (20) are both contact proximity switches.

2. The upper slicing system simulation operation device according to claim 1, characterized in that: The left parts of the first drive shaft (10) and the second drive shaft (12) are both slidably connected to the limit plate (14), and the right parts of the first drive shaft (10) and the second drive shaft (12) are both slidably connected to the mounting plate (3).

3. The upper slicing system simulation operation device according to claim 1, characterized in that: The front portion of the first gate (11) is slidably connected to the second drive shaft (12), and the rear portion of the second gate (13) is slidably connected to the first drive shaft (10).

4. The upper slicing system simulation operation device according to claim 1, characterized in that: The left end of the screw rod (8) is rotatably connected to the bottom end of the top plate (1), the screw rod (8) is rotatably connected to the mounting plate (3), and the front end of the rotating shaft (5) is rotatably connected to the right end of the mounting plate (3).

5. The upper slicing system simulation operation device according to claim 1, characterized in that: A first baffle (21) is fixedly connected to the bottom of the left end of the top plate (1), and second baffles (22) are fixedly connected to both the front and rear ends of the top plate (1), and the mounting plate (3) and the first baffle (21) are fixedly connected between the two second baffles (22). The mounting plate (3), the first baffle (21) and the two second baffles (22) are fixedly connected to the inner side of the end cover (2), and the limit plate (14) is fixedly connected to the first baffle (21) via a connecting rod, and the limit plate (14) is fixedly connected to the two second baffles (22) via a connecting rod.

6. The upper slicing system simulation operation device according to claim 5, characterized in that: A buzzer (23) is provided at the bottom of the right end of the first baffle (21), and the controller (15) is electrically connected to the first proximity switch (16), the second proximity switch (17), the third proximity switch (19), the fourth proximity switch (20), the motor (4), and the buzzer (23).

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