Rotation driving structure for material distribution of needle cylinder of tumor machine
By using a swing cylinder and photoelectric sensor in the syringe drive structure of the tumor machine, the problems of slow response speed, high noise and inaccurate counting in the prior art are solved, and fast, quiet and precise rotation control is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 美蓝(杭州)医药科技有限公司
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
The existing tumor machine syringes use a servo motor and hollow reducer to drive rotation, which results in reduced accuracy, slow response speed and high noise.
A swing cylinder is used instead of a servo motor. The shaft is driven to rotate through a coupling, and a photoelectric sensor and a sensor cover are used to count, ensuring accurate rotation and low noise.
It achieves fast response speed, low noise and accurate counting, avoiding the problem of inaccurate grasping by robotic arms.
Smart Images
Figure CN224242126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dispensing drive structure for tumor machines, specifically a rotary drive structure for dispensing material from a syringe in a tumor machine. Background Technology
[0002] Currently, the rotation of the syringe is generally driven by a servo motor in conjunction with a hollow gear reducer. However, the gear backlash in the reducer increases with the reduction ratio, leading to decreased precision, slow response, and higher noise levels in the servo motor. Therefore, there is an urgent need to develop a rotary drive structure for dispensing syringes in tumor scanners to address the problems in existing technologies. Utility Model Content
[0003] The purpose of this invention is to provide a rotary drive structure for dispensing material from a tumor machine syringe, which has the advantages of fast response speed, gearless transmission, and low noise, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A rotary drive structure for dispensing syringes in a tumor machine includes a mounting frame. A drive assembly is provided on the bottom inner wall of the mounting frame. The drive assembly includes six swing cylinders disposed on the bottom inner wall of the mounting frame. One end of the output shaft of each swing cylinder is connected to a coupling. The top end of the coupling is provided with a rotating shaft. The six swing cylinders located on the mounting frame are arranged in the same row.
[0006] It also includes a counting component, which includes a horizontal plate disposed on the inner side wall of the mounting bracket. The horizontal plate is provided with photoelectric sensors that are evenly distributed. The rotating shaft is disposed through the horizontal plate, and a sensor cover is provided on the outer wall of the rotating shaft at the same position as the horizontal plate. The sensor cover is provided with a through hole, and the through hole is used in conjunction with the sensor cover.
[0007] By adopting the above technical solution, a swing cylinder is used instead of the traditional servo motor and hollow reducer drive method. The swing cylinder drives the coupling to rotate, and the coupling drives the shaft to rotate, thereby realizing the operation of the entire mechanism. Since the swing cylinder is gas-driven and the rotation angle requirement is not too high, this method has advantages over the traditional servo motor and hollow reducer drive method, such as fast response speed, gearless transmission and low noise. At the same time, by using the photoelectric sensor on the counting component and the through hole on the sensor cover, the counting accuracy can be guaranteed. The drive structure in this solution has the effect of precise rotation and will not cause the subsequent robot arm to grasp inaccurately.
[0008] As a further embodiment of this invention: the through hole is located at the edge of the outer wall of the top of the sensor cover.
[0009] As a further embodiment of this utility model: the photoelectric sensor is provided with upper and lower probes, the upper and lower probes are perpendicular to the sensor cover, and the upper and lower probes and the photoelectric sensor form a "C" shape.
[0010] By adopting the above technical solution, the opening position of the through hole coincides with the position of the upper and lower probes of the photoelectric sensor, and the sensor cover is perpendicular to the position of the upper and lower probes. As the sensor cover rotates with the rotating shaft, the "C"-shaped notch will repeatedly coincide with the through hole during the rotation process, thereby ensuring stable counting.
[0011] As a further embodiment of this utility model: a first bearing is provided at the connection between the rotating shaft and the top of the mounting bracket, and a second bearing is provided at the connection between the rotating shaft and the horizontal plate.
[0012] As a further embodiment of this utility model: the horizontal plate is located at one-third of the height of the mounting bracket from bottom to top.
[0013] By adopting the above technical solution, the horizontal plate can not only be used to install photoelectric sensors, but also work with the second bearing to help stabilize the connection between the shaft and the coupling, ensuring the stable operation of the shaft under the drive of the swing cylinder.
[0014] As a further embodiment of this utility model: a vertically arranged partition is connected to the outer wall of the rotating shaft, and the partition is located between the first bearing and the second bearing.
[0015] As a further embodiment of this utility model: a rotating disk is provided on the outer wall of the partition, and a syringe is provided on the outer wall of the rotating disk.
[0016] By adopting the above technical solution, the syringe can be driven to turn by the oscillating cylinder. At the same time, in the subsequent process of the tumor machine, the robotic arm can be used to grab the syringe for aspiration, thereby completing the orderly distribution of materials.
[0017] In summary, this application includes at least one of the following beneficial technical effects:
[0018] 1. Fast response and low noise: Unlike the traditional drive method of servo motor and hollow reducer, this solution uses a swing cylinder to drive the coupling to rotate, and the coupling drives the shaft to rotate, thereby realizing the operation of the entire mechanism. The whole process is gearless, with fast response and low noise.
[0019] 2. The rotation process is precisely controlled. Relying on photoelectric sensors in conjunction with sensor shields, the number of rotations is accurately recorded each time, making the rotation control more precise and preventing problems such as inaccurate drug aspiration by the robotic arm when gripping the syringe.
[0020] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of an overall structure in one embodiment of the present utility model;
[0022] Figure 2 This is a schematic diagram of the partition installation structure in an embodiment of this utility model;
[0023] Figure 3 This is a schematic diagram of the second bearing mounting structure in an embodiment of this utility model;
[0024] Figure 4 In the embodiments of this utility model Figure 3 A magnified structural diagram of point A in the middle.
[0025] The figures are labeled as follows: 1. Mounting bracket; 2. Horizontal plate; 3. Swing cylinder; 4. Syringe; 5. Rotating shaft; 6. Coupling; 8. Partition plate; 9. Rotating disk; 10. First bearing; 11. Second bearing; 12. Photoelectric sensor; 13. Sensor shield; 14. Through hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, a rotary drive structure for dispensing tumor syringe includes a mounting frame 1. A drive assembly is provided on the bottom inner wall of the mounting frame 1. The drive assembly includes six swing cylinders 3 disposed on the bottom inner wall of the mounting frame 1. One end of the output shaft of each swing cylinder 3 is connected to a coupling 6. The top end of the coupling 6 is provided with a rotating shaft 5. The six swing cylinders 3 on the mounting frame 1 are arranged in the same row.
[0028] It also includes a counting component, which includes a horizontal plate 2 set on the inner side wall of the mounting frame 1. The horizontal plate 2 is provided with photoelectric sensors 12 distributed at equal intervals. A rotating shaft 5 is set through the horizontal plate 2, and a sensor cover 13 is provided on the outer wall of the rotating shaft 5 at the same position as the horizontal plate 2. The sensor cover 13 is provided with a through hole 14, and the through hole 14 is used in conjunction with the sensor cover 13.
[0029] Specifically, a swing cylinder 3 is used to replace the traditional drive method of servo motor and hollow reducer. The swing cylinder 3 drives the coupling 6 to rotate, and the coupling 6 drives the rotating shaft 5 to rotate, thereby realizing the operation of the entire mechanism. Since the swing cylinder 3 is gas driven and the rotation angle requirement is not too high, this method has advantages such as fast response speed and low noise due to gearless transmission compared with the traditional drive method of servo motor and hollow reducer.
[0030] Meanwhile, by using the photoelectric sensor 12 on the counting component in conjunction with the through hole 14 on the sensor cover 13, the counting accuracy can be ensured. The drive structure in this solution has the effect of precise rotation, and will not cause the subsequent problem of inaccurate grasping by the robotic arm.
[0031] Reference Figure 4 In this embodiment, the through hole 14 is located at the edge of the outer wall of the top of the sensor cover 13. The photoelectric sensor 12 is provided with upper and lower probes, which are perpendicular to the sensor cover 13 and form a "C" shape with the photoelectric sensor 12.
[0032] It should be noted that the position of the through hole 14 coincides with the position of the upper and lower probes of the photoelectric sensor 12, and the sensor cover 13 is perpendicular to the position of the upper and lower probes. As the sensor cover 13 rotates with the rotating shaft 5, the "C"-shaped notch will repeatedly coincide with the through hole 14 during the rotation process, thereby ensuring stable counting.
[0033] For example, if the upper and lower probes of the photoelectric sensor 12 are not perpendicular to each other with the sensor cover 13, it is conceivable that when the through hole 14 rotates one full circle and passes through the position directly opposite the upper and lower probes, the upper and lower probes will not be able to accurately pass through the cover through hole 14, affecting the designed sensor counting effect.
[0034] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, a first bearing 10 is provided at the top connection between the rotating shaft 5 and the mounting frame 1, and a second bearing 11 is provided at the connection between the rotating shaft 5 and the horizontal plate 2. The horizontal plate 2 is located at one-third of the height of the mounting frame 1 from bottom to top.
[0035] Specifically, the horizontal plate 2 can not only be used to install the photoelectric sensor 12, but also work with the second bearing 11 to help stabilize the connection between the rotating shaft 5 and the coupling 6, ensuring the stable operation of the rotating shaft 5 under the drive of the swing cylinder 3.
[0036] In this embodiment, a vertically arranged partition 8 is connected to the outer wall of the rotating shaft 5, and the partition 8 is located between the first bearing 10 and the second bearing 11.
[0037] In this embodiment, the photoelectric sensor 12 is a photoelectric proximity sensor.
[0038] It should be noted that this type of sensor can detect objects by using the principle of light signal reflection or blocking.
[0039] Reference Figure 1 and Figure 2 In this embodiment, a rotating disk 9 is provided on the outer wall of the partition 8, and a syringe 4 is provided on the outer wall of the rotating disk 9.
[0040] Specifically, the oscillating cylinder 3 can be used to drive the syringe 4 to turn, and in the subsequent process of the tumor machine, the robotic arm can be used to grasp the syringe 4 for aspiration.
[0041] Working principle:
[0042] When the device needs to rotate the syringe 4, the swing cylinder 3 is first started to drive the coupling 6 to rotate, and the coupling 6 drives the rotating shaft 5 to rotate, thereby realizing the operation of the entire device. During this process, the partition 8 also rotates, and the entire rotating shaft 5 is connected to the entire mounting frame 1 through the first bearing 10 and the second bearing 11. The photoelectric sensor 12 is set to control the rotation angle. Since the entire scheme only requires rotating the rotating shaft 5 by 180 degrees, the through hole 14 on the sensor cover 13 is used to facilitate the counting of the photoelectric sensor 12. The first time the photoelectric sensor 12 does not detect the obstruction of an object is taken as the starting point, and the second time it detects the obstruction of an object is taken as the ending point, and one rotation can be completed.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A rotary drive structure for dispensing material from a tumor syringe, comprising a mounting frame (1), characterized in that, The mounting bracket (1) has a drive assembly on its bottom inner wall. The drive assembly includes six swing cylinders (3) disposed on the bottom inner wall of the mounting bracket (1). One end of the output shaft of each swing cylinder (3) is connected to a coupling (6). The top end of the coupling (6) is provided with a rotating shaft (5). The six swing cylinders (3) on the mounting bracket (1) are arranged in the same row. It also includes a counting component, which includes a horizontal plate (2) disposed on the inner side wall of the mounting bracket (1). The horizontal plate (2) is provided with photoelectric sensors (12) distributed at equal intervals. The rotating shaft (5) is disposed through the horizontal plate (2), and a sensor cover (13) is provided on the outer wall of the rotating shaft (5) at the same level as the horizontal plate (2). The sensor cover (13) is provided with a through hole (14), and the through hole (14) is used in conjunction with the sensor cover (13).
2. The rotary drive structure for dispensing material from a tumor-producing syringe according to claim 1, characterized in that, The through hole (14) is located at the edge of the top outer wall of the sensor cover (13).
3. The rotary drive structure for dispensing material from a tumor-producing syringe according to claim 2, characterized in that, The photoelectric sensor (12) is provided with upper and lower probes, which are perpendicular to the sensor cover (13) and form a "C" shape with the photoelectric sensor (12).
4. The rotary drive structure for dispensing material from a tumor-producing syringe according to claim 3, characterized in that, A first bearing (10) is provided at the top connection between the rotating shaft (5) and the mounting bracket (1), and a second bearing (11) is provided at the connection between the rotating shaft (5) and the horizontal plate (2).
5. The rotary drive structure for dispensing material from a tumor-producing syringe according to claim 4, characterized in that, The horizontal plate (2) is located at one-third of the height of the mounting bracket (1) from bottom to top.
6. The rotary drive structure for dispensing material from a tumor-producing syringe according to claim 4, characterized in that, A vertically arranged partition (8) is connected to the outer wall of the rotating shaft (5), and the partition (8) is located between the first bearing (10) and the second bearing (11).
7. The rotary drive structure for dispensing material from a tumor-producing syringe according to claim 6, characterized in that, The photoelectric sensor (12) is a photoelectric proximity sensor.
8. The rotary drive structure for dispensing material from a tumor-producing syringe according to claim 7, characterized in that, The outer wall of the partition (8) is provided with a rotating disk (9), and the outer wall of the rotating disk (9) is provided with a syringe (4).