Hollow high-precision rotary mechanism for sensor assembly testing machine
By adopting a hollow high-precision cyclotron mechanism with a dual closed-loop feedback control system on the sensor assembly tester, the limitations of rotation positioning accuracy and dynamic stability of traditional testers under high accuracy requirements are solved, and more accurate sensor assembly and testing are achieved.
Patent Information
- Application Number
- CN202421592904.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-08
AI Technical Summary
When traditional sensor assembly test machines face high-precision requirements, especially in terms of rotational positioning accuracy and dynamic stability, it is difficult to meet the micron-level or even nano-level assembly and testing requirements of complex sensors such as multi-axis force sensors, high-precision gyroscopes, etc.
The hollow high-precision cycling mechanism with a dual closed-loop feedback control system is adopted to achieve accurate operation and reduce the influence of external line degree rotation accuracy through components such as servo motor, PID controller, hollow rotation device.
It enhances the accuracy and practicality of the sensor assembly tester, enables the components to be run more accurately, and reduces the impact of external parts on the hollow rotating device, thereby meeting high-precision assembly and testing requirements.
Smart Images
Figure CN222741451U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of accessory devices of a sensor assembly test machine, in particular to a hollow high-precision rotary mechanism for a sensor assembly test machine. Background Art
[0002] In modern manufacturing, sensors are basic components for information acquisition and processing, and their performance directly affects the accuracy and reliability of the entire system. Although traditional sensor assembly and testing machines have achieved a certain degree of automation and precision control, they still have limitations in the face of growing high-precision demands, especially in terms of rotational positioning accuracy and dynamic stability. In particular, for complex sensors that need to be precisely operated in three-dimensional space, such as multi-axis force sensors, high-precision gyroscopes, etc., traditional assembly and testing equipment often finds it difficult to meet their micron-level or even nano-level assembly and testing requirements. As an innovative mechanical design, the hollow gyroscopic mechanism has been widely used in scenarios that require internal channels for signal or energy transmission. However, in the field of sensor assembly and testing, how to combine it with high-precision requirements has become a technical problem that needs to be solved urgently. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a hollow high-precision rotary mechanism for a sensor assembly and testing machine with a double closed-loop feedback control system to achieve more precise operation and a precise hollow rotating shaft to reduce the influence of external circuit rotation accuracy, thereby enhancing the practicality.
[0004] The utility model discloses a hollow high-precision rotary mechanism for a sensor assembly and testing machine, comprising a servo motor, a PID controller, four groups of first screws, a hollow rotating device, a coupling, a rotating rod and a bevel gear column. The top of the servo motor is provided with four groups of mounting threaded holes, the top of the PID controller is provided with four groups of mounting through holes, the four groups of first screws are threadedly connected with the mounting threaded holes through the mounting through holes, the left ends of the servo motor and the PID controller are respectively provided with transmission lines, the servo motor is connected to the hollow rotating device through a fixing component, the output end of the servo motor is connected to the rotating rod through a coupling, the bottom end of the rotating rod is connected to the bevel gear column, the top of the hollow rotating device is provided with a cover plate component, the inner wall of the hollow rotating device is provided with a first chamber, and the rotating component is provided in the first chamber.
[0005] Preferably, the fixing assembly includes a protective shell, four groups of second screws and two groups of third screws, four groups of fixing threaded holes are arranged on the top of the protective shell, four groups of fixing through holes are arranged on the outer wall of the servo motor, the four groups of second screws are threadedly connected with the fixing threaded holes through the fixing through holes, two groups of first threaded holes are arranged at the bottom end of the protective shell, a first through hole is arranged at the bottom end of the hollow rotating device, two groups of second through holes are arranged on the cover plate assembly, and the two groups of third screws are threadedly connected with the first threaded hole through the first through hole and the second through hole, respectively.
[0006] Preferably, the cover plate assembly includes six groups of fourth screws, two groups of second through holes are arranged at the top of the cover plate, a fixing ring is arranged at the bottom end of the cover plate, six groups of second threaded holes are arranged at the top of the first ring, six groups of third through holes are arranged at the top of the cover plate, and the six groups of fourth screws are threadedly connected with the second threaded holes through the third through holes respectively.
[0007] Preferably, the rotating assembly includes a fixed ring, a first ring and a second ring, the outer wall of the fixed ring is provided with a first ring which is slidably mounted, the outer wall of the first ring is slidably mounted with the second ring, six groups of first ball grooves are arranged on the outer wall of the first ring, six groups of second ball grooves are arranged at the inner end of the second ring, multiple groups of balls are arranged in the first ball grooves and the second ball grooves, the outer wall of the second ring is provided with a first bevel tooth, and the first bevel tooth is meshed with the tooth surface of the bevel gear column.
[0008] Preferably, the left ends of the two groups of transmission lines are respectively provided with a snap-in terminal.
[0009] Preferably, the bottom end of the hollow rotating device is provided with four groups of fourth through holes, and the bottom end of the second ring is provided with eight groups of third threaded holes.
[0010] Preferably, it also includes a torque sensor, two groups of support plates and two groups of fifth screws, the inner end of the protective shell and the front and rear ends of the torque sensor are respectively connected to the support plates, the right ends of the two groups of support plates are respectively provided with sixth through holes, the inner end of the protective shell is provided with two groups of fourth threaded holes, the two groups of fifth screws are respectively threadedly connected with the fourth threaded holes through the sixth through holes, a rotating rod is provided at the bottom end of the torque sensor, a second bevel tooth is provided on the outer wall of the rotating rod, and the second bevel tooth is meshed with the tooth surface of the bevel gear column.
[0011] Preferably, the four groups of installation through holes, the four groups of fixing through holes, the two groups of second through holes, the six groups of third through holes, the four groups of fourth through holes and the eight groups of fifth through holes are all configured as countersunk holes.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: first, the hollow rotating device is installed on the sensor assembly and testing machine, and then connected and fixed to the manipulator through the eight groups of third threaded holes on the second collar, and then the manipulator is threaded through the hollow hole on the fixed collar on the hollow rotating device, and then the transmission line is connected to the upper device, and then the servo motor is accurately powered through the PID controller, so that the servo motor can rotate more accurately at this time, so that the hollow rotating device is driven by the servo motor to operate, and then the torque sensor is used to accurately control the speed of the bevel gear column, so that the components can be operated more accurately when assembling the sensor, and the hollow hole in the middle of the protective collar can be smoothly threaded and the pipeline can be installed, thereby reducing the impact of external parts on the hollow rotating device, thereby enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the connection structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the connection structure between the transmission line and the card-mounted terminal of the utility model;
[0015] Figure 3 It is a schematic diagram of the connection structure between the bevel gear column and the rotating rod of the utility model;
[0016] Figure 4 It is a schematic diagram of the bottom structure of the utility model;
[0017] Markings in the accompanying drawings: 1. servo motor; 2. PID controller; 3. first screw; 4. transmission line; 5. hollow rotating device; 6. coupling; 7. rotating rod; 8. first chamber; 9. protective shell; 10. second screw; 11. third screw; 12. cover plate; 13. fourth screw; 14. fixing ring; 15. first ring; 16. second ring; 17. ball; 18. snap-on terminal; 19. torque sensor; 20. support plate; 21. fifth screw; 22. rotating rod; 23. bevel gear column. DETAILED DESCRIPTION
[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0019] like Figures 1 to 4As shown, the hollow high-precision rotary mechanism for the sensor assembly and testing machine of the utility model comprises a servo motor 1, a PID controller 2, four groups of first screws 3, a hollow rotating device 5, a coupling 6, a rotating rod 7 and a bevel gear column (23), the top of the servo motor 1 is provided with four groups of mounting threaded holes, the top of the PID controller 2 is provided with four groups of mounting through holes, the four groups of first screws 3 are threadedly connected with the mounting threaded holes through the mounting through holes, the left ends of the servo motor 1 and the PID controller 2 are respectively provided with transmission lines 4, the servo motor 1 is connected to the hollow rotating device 5 through a fixing component, the output end of the servo motor 1 is connected to the rotating rod 7 through the coupling 6, the bottom end of the rotating rod 7 is connected to the bevel gear column 23, the top of the hollow rotating device 5 is provided with a cover plate 12 component, the inner wall of the hollow rotating device 5 is provided with a first chamber 8, the first A rotating component is provided in the chamber 8; first, the hollow rotating device is installed on the sensor assembly and testing machine, and then connected and fixed to the manipulator through the eight groups of third threaded holes on the second ring, and then the manipulator is threaded through the hollow hole on the fixed ring on the hollow rotating device, and then the transmission line is connected to the upper device, and then the servo motor is accurately powered through the PID controller, so that the servo motor can rotate more accurately at this time, so that the hollow rotating device is driven by the servo motor to operate, and then the torque sensor is used to accurately control the speed of the bevel gear column, so that the component can be operated more accurately when assembling the sensor, and the hollow hole in the middle of the protective ring can be smoothly threaded and installed with pipes, so as to reduce the impact of external parts on the hollow rotating device, thereby enhancing practicality.
[0020] As a preferred embodiment of the above embodiment, the fixing component includes a protective shell 9, four groups of second screws 10 and two groups of third screws 11. Four groups of fixing threaded holes are arranged on the top of the protective shell 9, and four groups of fixing through holes are arranged on the outer wall of the servo motor 1. The four groups of second screws 10 are respectively threadedly connected with the fixing threaded holes through the fixing through holes. Two groups of first threaded holes are arranged at the bottom end of the protective shell 9, and the bottom end of the hollow rotating device 5 is arranged with a first through hole. Two groups of second through holes are arranged on the cover plate 12 component, and the two groups of third screws 11 are respectively threadedly connected with the first threaded hole through the first through hole and the second through hole; the hollow rotating device can be connected to the servo motor through the protective shell, so as to protect the internal rotating rod and bevel gear column and prevent foreign objects from affecting the rotation of the hollow rotating device, thereby enhancing practicality.
[0021] As a preferred embodiment of the above embodiment, the cover plate 12 assembly includes six groups of fourth screws 13, two groups of second through holes are arranged at the top of the cover plate 12, a fixing ring 14 is arranged at the bottom of the cover plate 12, six groups of second threaded holes are arranged at the top of the first ring 15, six groups of third through holes are arranged at the top of the cover plate 12, and the six groups of fourth screws 13 are threadedly connected with the second threaded holes through the third through holes respectively; the cover plate and the fixed set ring can be installed by six groups of fourth screws to protect the first set ring, the second set ring and the bevel tooth surface column, and the two groups of third screws fix the hollow rotating device, the cover plate and the protective shell together, thereby enhancing practicality.
[0022] As a preferred embodiment of the above embodiment, the rotating component includes a fixed ring 14, a first ring 15 and a second ring 16. The outer wall of the fixed ring 14 is provided with a first ring 15 which is slidably mounted. The outer wall of the first ring 15 is slidably mounted with the second ring 16. Six groups of first ball grooves are arranged on the outer wall of the first ring 15. Six groups of second ball grooves are arranged at the inner end of the second ring 16. Multiple groups of balls 17 are arranged in the first ball grooves and the second ball grooves. The outer wall of the second ring 16 is provided with first bevel teeth, which mesh with the tooth surface of the bevel gear column 23. When the bevel gear column rotates, the second ring provided with the first bevel teeth will be driven to rotate, thereby realizing the operation of the equipment, and the first ring will clamp the second ring, and through the five groups of first ball grooves, five groups of second ball grooves and multiple groups of balls, the friction between the first ring and the second ring is reduced, thereby reducing the influence of the deceleration on the rotation speed, thereby enhancing the practicality.
[0023] As a preference of the above embodiment, the left ends of the two groups of transmission lines 4 are respectively provided with snap-in terminals 18; the transmission lines can be conveniently connected to the upper device through the two groups of snap-in terminals, thereby enhancing practicality.
[0024] As a preferred embodiment of the above embodiment, the bottom end of the hollow rotating device 5 is provided with four groups of fourth through holes, and the bottom end of the second ring 16 is provided with eight groups of third threaded holes; the manipulator housing can be fixed through the four groups of fourth through holes, and the second ring that can be rotated through the eight groups of third screw holes can be connected to the manipulator, so as to realize 360-degree rotation of the manipulator, thereby enhancing practicality.
[0025] As a preferred embodiment of the above embodiment, it also includes a torque sensor 19, two groups of support plates 20 and two groups of fifth screws 21. The inner end of the protective shell 9 and the front and rear ends of the torque sensor 19 are respectively connected to the support plates 20. The right ends of the two groups of support plates 20 are respectively provided with sixth through holes, and the inner end of the protective shell 9 is provided with two groups of fourth threaded holes. The two groups of fifth screws 21 are respectively threadedly connected with the fourth threaded holes through the sixth through holes. A rotating rod 22 is provided at the bottom end of the torque sensor 19. A second bevel tooth is provided on the outer wall of the rotating rod 22. The second bevel tooth is meshed with the tooth surface of the bevel gear column 23. The rotation speed of the bevel gear column can be detected by using the rotating rod with the second bevel tooth on the torque sensor, so as to accurately control the rotation speed of the hollow rotating device in real time, so as to cooperate with the PID controller to form a double closed-loop feedback control system, thereby enhancing practicality.
[0026] As a preferred embodiment of the above embodiment, the four groups of installation through holes, four groups of fixing through holes, two groups of second through holes, six groups of third through holes, four groups of fourth through holes and eight groups of fifth through holes are all set as countersunk holes; the four groups of first screws, four groups of second screws, two groups of third screws and six groups of fourth screws can be hidden by countersunk holes to prevent the robot from bumping into the screws and causing a collision during operation, thereby enhancing practicality.
[0027] The hollow high-precision gyroscope mechanism for a sensor assembly and testing machine of the utility model has the following working principle: when it is working, the hollow rotating device is first installed on the sensor assembly and testing machine, and then connected and fixed with the manipulator through the eight groups of third threaded holes on the second ring, and then the manipulator is threaded through the hollow holes on the fixed ring on the hollow rotating device, and then the transmission line is connected to the upper device through two groups of card-mounted terminals, and then the servo motor is accurately powered through the PID controller, so that the servo motor can rotate more accurately, so that the hollow rotating device is driven by the servo motor to operate, and the servo motor drives the bevel gear column to rotate At the same time, the torque sensor detects the speed of the servo motor through the rotating rod meshing with the tooth surface of the bevel gear column, thereby forming a double closed-loop control system through the PID controller, thereby more accurately driving the hollow rotating device to operate, and the hollow hole in the middle of the protective ring can be smoothly threaded and installed with pipes, thereby reducing the impact of external parts on the hollow rotating device. Later, when the servo motor drives the bevel gear column to rotate, it drives the second ring meshing with the tooth surface to rotate, and then the rotating second ring will drive the robot connected to the eight sets of third threads to reverse and assemble the sensor parts, thereby realizing high-precision sensor assembly and testing machine and sensor assembly.
[0028] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
[0029] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.
[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A hollow high-precision rotary mechanism for a sensor assembly test machine, characterized in that: The invention comprises a servo motor (1), a PID controller (2), four groups of first screws (3), a hollow rotating device (5), a coupling (6), a rotating rod (7) and a bevel gear column (23). The top of the servo motor (1) is provided with four groups of mounting threaded holes, the top of the PID controller (2) is provided with four groups of mounting through holes, the four groups of first screws (3) are threadedly connected with the mounting threaded holes through the mounting through holes, the left ends of the servo motor (1) and the PID controller (2) are respectively provided with transmission lines (4), the servo motor (1) is connected with the hollow rotating device (5) through a fixing component, the output end of the servo motor (1) is connected with the rotating rod (7) through the coupling (6), the bottom end of the rotating rod (7) is connected with the bevel gear column (23), the top of the hollow rotating device (5) is provided with a cover plate (12) component, the inner wall of the hollow rotating device (5) is provided with a first chamber (8), and the rotating component is provided in the first chamber (8).
2. The hollow high-precision rotary mechanism for a sensor assembly and testing machine according to claim 1, characterized in that: The fixing assembly comprises a protective shell (9), four groups of second screws (10) and two groups of third screws (11); four groups of fixing threaded holes are arranged at the top of the protective shell (9); four groups of fixing through holes are arranged on the outer wall of the servo motor (1); the four groups of second screws (10) are respectively threadedly connected with the fixing threaded holes through the fixing through holes; two groups of first threaded holes are arranged at the bottom end of the protective shell (9); a first through hole is arranged at the bottom end of the hollow rotating device (5); two groups of second through holes are arranged on the cover plate (12) assembly; and two groups of third screws (11) are respectively threadedly connected with the first threaded hole through the first through hole and the second through hole.
3. The hollow high-precision rotary mechanism for a sensor assembly and testing machine according to claim 2, characterized in that: The cover plate (12) assembly includes six groups of fourth screws (13), two groups of second through holes are arranged at the top end of the cover plate (12), a fixing ring (14) is arranged at the bottom end of the cover plate (12), six groups of second threaded holes are arranged at the top end of the first ring (15), six groups of third through holes are arranged at the top end of the cover plate (12), and the six groups of fourth screws (13) are respectively threadedly connected with the second threaded holes through the third through holes.
4. The hollow high-precision rotary mechanism for a sensor assembly and testing machine as claimed in claim 3, characterized in that: The rotating assembly comprises a fixed collar (14), a first collar (15) and a second collar (16); a first collar (15) which is slidably mounted is arranged on the outer wall of the fixed collar (14); the outer wall of the first collar (15) and the second collar (16) are slidably mounted; six groups of first ball sliding grooves are arranged on the outer wall of the first collar (15); six groups of second ball sliding grooves are arranged at the inner end of the second collar (16); a plurality of groups of balls (17) are arranged in the first ball sliding grooves and the second ball sliding grooves; a first bevel tooth is arranged on the outer wall of the second collar (16); the first bevel tooth is meshed with the tooth surface of the bevel gear column (23).
5. The hollow high-precision rotary mechanism for a sensor assembly and testing machine according to claim 4, characterized in that: The left ends of the two groups of transmission lines (4) are respectively provided with a clamping terminal (18).
6. The hollow high-precision rotary mechanism for a sensor assembly and testing machine according to claim 5, characterized in that: The bottom end of the hollow rotating device (5) is provided with four groups of fourth through holes, and the bottom end of the second ring (16) is provided with eight groups of third threaded holes.
7. The hollow high-precision rotary mechanism for a sensor assembly and testing machine according to claim 6, characterized in that: It also includes a torque sensor (19), two groups of support plates (20) and two groups of fifth screws (21); the inner end of the protective housing (9) and the front and rear ends of the torque sensor (19) are respectively connected to the support plate (20); the right ends of the two groups of support plates (20) are respectively provided with a sixth through hole; the inner end of the protective housing (9) is provided with two groups of fourth threaded holes; the two groups of fifth screws (21) are respectively threadedly connected to the fourth threaded holes through the sixth through holes; the bottom end of the torque sensor (19) is provided with a rotating rod (22); the outer wall of the rotating rod (22) is provided with a second bevel tooth; the second bevel tooth is meshed with the tooth surface of the bevel gear column (23).
8. The hollow high-precision rotary mechanism for a sensor assembly and testing machine according to claim 7, characterized in that: The four groups of installation through holes, the four groups of fixing through holes, the two groups of second through holes, the six groups of third through holes, the four groups of fourth through holes and the eight groups of fifth through holes are all configured as countersunk holes.