All-angle rotation precision motion module and all-angle detection device

Abstract

The utility model relates to a full-angle rotation precision motion module and a full-angle detection device, the full-angle rotation precision motion module comprises a rotation assembly and a limiting assembly, the rotation assembly comprises a fixed support, a rotation platform and a rotation driving member, the rotation platform is rotatably connected to the fixed support, and the rotation driving member is installed on the fixed support and drives the rotation platform to rotate; the limiting assembly comprises a sliding rail, a forward abutting block, a reverse abutting block, a sliding abutting block and an abutting arm, the sliding rail, the forward abutting block and the reverse abutting block are all relatively fixed to the fixed support, the sliding abutting block is slidably connected to the sliding rail and located between the forward abutting block and the reverse abutting block, and the abutting arm and the rotating platform are relatively fixed. According to the utility model, the compatibility of full-angle dead-zone-free rotation and mechanical limiting is realized, and the device has the advantages of full-range detection, strong universality, high motion precision, low cost and the like.

Description

Technical Field

[0001] This utility model relates to the field of rotational limiting technology, and in particular to a full-angle rotational precision motion module and a full-angle detection device. Background Technology

[0002] A full-angle inspection device refers to a device that rotates 360 degrees around the object being inspected, thereby performing a full-circumference inspection. It typically includes a fixed support, a rotating platform, and a drive mechanism to rotate the platform. To ensure the rotating platform stops safely after reaching its rotation position, it is best to include a rotation limiter for limiting its rotation. Existing full-angle inspection devices often struggle to simultaneously achieve rotation limiter and 360-degree rotation. This is because the limiter has a certain volume, resulting in a relative rotation angle between the rotating platform and the fixed support that is less than 360°, creating a dead zone of approximately 10°, which is insufficient for applications requiring larger 360-degree or greater rotation angles. How to simultaneously achieve rotation limiter and rotation of 360 degrees or more is a pressing technical problem that needs to be solved in this field. Utility Model Content

[0003] Therefore, this utility model provides a full-angle rotation precision motion module and a full-angle detection device, which can realize the limiting of the full-angle rotation precision motion module to rotate 360 ​​degrees or more.

[0004] To solve the above-mentioned technical problems, this utility model provides a full-angle rotation precision motion module, comprising:

[0005] A rotating assembly includes a fixed bracket, a rotating platform, and a rotating drive component. The rotating platform is rotatably connected to the fixed bracket, and the rotating drive component is mounted on the fixed bracket and drives the rotating platform to rotate.

[0006] The limiting component includes a slide rail, a forward abutment block, a reverse abutment block, a sliding abutment block, and an abutment arm. The slide rail, the forward abutment block, and the reverse abutment block are all fixed relative to the fixed bracket. The sliding abutment block is slidably connected to the slide rail and located between the forward abutment block and the reverse abutment block. The abutment arm is fixed relative to the rotating platform.

[0007] Wherein, the forward abutment block and the reverse abutment block avoid the rotation trajectory of the abutment arm, and the sliding abutment block is located on the rotation trajectory of the abutment arm;

[0008] When the rotating platform rotates in the forward direction, the abutting arm and the sliding abutting block abut against each other and are limited in position, and the sliding abutting block and the forward abutting block abut against each other and are limited in position.

[0009] When the rotating platform rotates in the opposite direction, the abutting arm and the sliding abutting block abut against each other and are limited in position, and the sliding abutting block and the reverse abutting block abut against each other and are limited in position.

[0010] Furthermore, the slide rail is located radially outside the rotating platform, the slide rail extends tangentially along the rotating platform, and the abutment arm extends radially along the rotating platform.

[0011] Furthermore, the limiting component also includes a buffer post, which is used to buffer the impact force when the sliding abutment block contacts the forward abutment block, the reverse abutment block and the abutment arm.

[0012] Furthermore, the buffer post is connected to the forward abutment block, the reverse abutment block, and the abutment arm.

[0013] Furthermore, the limiting component also includes a forward sensor and a reverse sensor. The forward sensor is used to detect whether the sliding abutment block has reached a position close to the forward abutment block, and the reverse sensor is used to detect whether the sliding abutment block has reached a position close to the reverse abutment block.

[0014] Furthermore, the forward sensor is connected to the end of the sliding abutment block near the forward abutment block, and the reverse sensor is connected to the end of the sliding abutment block near the reverse abutment block.

[0015] Furthermore, both the forward sensor and the reverse sensor are photoelectric sensors.

[0016] Furthermore, the rotary drive component is an arc-shaped motor.

[0017] This utility model also provides an all-angle detection device, including:

[0018] The aforementioned full-angle precision motion module has a rotating platform with a central hole for the object to be inspected to pass through.

[0019] The detection module includes an X-ray source and a receiver, wherein the X-ray source is used to emit signals and the receiver is used to receive signals.

[0020] Furthermore, the detection module also includes a first lead screw drive assembly that moves the X-ray source closer to and away from the center of the rotating platform, and a second lead screw drive assembly that moves the receiver closer to and away from the center of the rotating platform.

[0021] Compared with the prior art, the above-mentioned technical solution of this utility model has the following advantages: The full-angle rotation precision module and full-angle detection device of this utility model, by setting a limiting component, including a slide rail, a forward abutment block, a reverse abutment block, a sliding abutment block and an abutment arm, realizes the compatibility of full-angle rotation without dead zone and mechanical limiting. The equipment has the advantages of full-range detection, strong versatility, high motion accuracy and low cost. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the full-angle rotating precision module disclosed in Embodiment 1 of this utility model;

[0024] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 This is a schematic diagram of the all-angle detection device disclosed in Embodiment 2 of this utility model.

[0026] Explanation of reference numerals in the accompanying drawings: 11. Fixed bracket; 12. Rotating platform; 121. Center hole; 13. Rotation drive component; 21. Slide rail; 22. Forward abutment block; 23. Reverse abutment block; 24. Sliding abutment block; 25. Abutment arm; 26. Buffer column; 27. Forward sensor; 28. Reverse sensor; 3. X-ray source; 4. Receiver; 5. First lead screw drive assembly; 6. Second lead screw drive assembly. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example 1

[0028] See Figure 1 As shown, this utility model discloses an embodiment of a full-angle rotation precision motion module.

[0029] The omnidirectional rotation precision motion module includes:

[0030] The rotating assembly includes a fixed bracket 11, a rotating platform 12, and a rotating drive 13. The rotating platform 12 is rotatably connected to the fixed bracket 11, and the rotating drive 13 is mounted on the fixed bracket 11 and drives the rotating platform 12 to rotate.

[0031] The limiting component includes a slide rail 21, a forward abutment block 22, a reverse abutment block 23, a sliding abutment block 24, and an abutment arm 25. The slide rail 21, the forward abutment block 22, and the reverse abutment block 23 are all fixed relative to the fixed bracket 11. The sliding abutment block 24 is slidably connected to the slide rail 21 and located between the forward abutment block 22 and the reverse abutment block 23. The abutment arm 25 is fixed relative to the rotating platform 12.

[0032] The forward abutment block 22 and the reverse abutment block 23 avoid the rotation trajectory of the abutment arm 25, and the sliding abutment block 24 is located on the rotation trajectory of the abutment arm 25.

[0033] When the rotating platform 12 rotates in the forward direction, the abutting arm 25 and the sliding abutting block 24 abut against each other and are limited in position, and the sliding abutting block 24 and the forward abutting block 22 abut against each other and are limited in position.

[0034] When the rotating platform 12 rotates in the opposite direction, the abutting arm 25 and the sliding abutting block 24 abut against each other and are limited in position, and the sliding abutting block 24 and the reverse abutting block 23 abut against each other and are limited in position.

[0035] By setting a limiting component with a dynamic sliding structure, compatibility between full-angle, dead-zone-free rotation and mechanical limiting is achieved. The rotation component establishes the basic rotation function through the rotational drive relationship between the fixed bracket 11 and the rotating platform 12, while the limiting component forms a new limiting mode through spatial misalignment layout and motion coupling mechanism. Specifically, the forward abutment block 22, the reverse abutment block 23, and the abutment arm 25 adopt a non-contact spatial avoidance layout, allowing the rotating platform 12 to rotate 360 ​​degrees without obstruction; the sliding abutment block 24's slidability on the slide rail 21 allows it to dynamically adapt to the rotation direction of the rotating platform 12. When the abutment arm 25 pushes the sliding abutment block 24 to the forward abutment block 22 or the reverse abutment block 23, a three-level mechanical limiting chain is formed: rotating platform 12 → abutment arm 25 → sliding abutment block 24 → forward abutment block 22 / reverse abutment block 23 → fixed bracket 11. This design, which transforms the fixed limiting point into a movable limiting intermediary, retains the reliability of mechanical limiting while eliminating the space occupation of the rotation angle by the traditional limiting structure through the displacement compensation of the sliding abutment block 24, thus achieving a breakthrough in the coordinated operation of full-circumference rotation and limiting protection.

[0036] In this embodiment, the slide rail 21 is located radially outside the rotating platform 12, the slide rail 21 extends tangentially along the rotating platform 12, and the abutment arm 25 extends radially along the rotating platform 12.

[0037] By positioning the slide rail 21 radially outward and extending tangentially on the rotating platform 12, the movement direction of the sliding abutment block 24 on the slide rail 21 is aligned with the tangential direction of the rotating platform 12. This arrangement effectively utilizes the annular space around the rotating platform 12, preventing the limiting components from occupying internal structural space. The radially extending abutment arm 25 allows it to contact the sliding abutment block 24 with minimal space requirements during rotation. Their orthogonal arrangement ensures a precise linear contact between the abutment arm 25 and the sliding abutment block 24 during circumferential movement of the rotating platform 12. This spatial arrangement fundamentally eliminates the rotational interference area present in traditional limiting structures, enabling the rotating platform 12 to achieve continuous rotational movement without dead angles while simultaneously achieving forward and reverse mechanical limiting.

[0038] In this embodiment, the limiting component further includes a buffer post 26, which is used to buffer the impact force when the sliding abutment block 24 contacts the forward abutment block 22, the reverse abutment block 23 and the abutment arm 25.

[0039] By adding a buffer post 26 to the limiting component, the instantaneous impact force generated by the rotational limiting action between the sliding abutment block 24 and the forward abutment block 22, the reverse abutment block 23, and the abutment arm 25 is absorbed and buffered. As an elastic medium, the buffer post 26 can effectively reduce the vibration and wear caused by rigid contact, and prevent the limiting component from structural deformation or decrease in accuracy due to frequent collisions.

[0040] In this embodiment, the buffer post 26 is connected to the forward abutment block 22, the reverse abutment block 23 and the abutment arm 25.

[0041] By providing buffer posts 26 at all three contact ends of the forward abutment block 22, the reverse abutment block 23, and the abutment arm 25, while not providing buffer posts for the sliding abutment block 24, errors are prevented when performing position detection on the sliding abutment block 24 later.

[0042] In this embodiment, the limiting component further includes a forward sensor 27 and a reverse sensor 28. The forward sensor 27 is used to detect whether the sliding abutment block 24 has reached a position close to the forward abutment block 22, and the reverse sensor 28 is used to detect whether the sliding abutment block 24 has reached a position close to the reverse abutment block 23.

[0043] A dual position detection mechanism is constructed by adding a forward sensor 27 and a reverse sensor 28 to the limit assembly. The correspondence between the forward sensor 27 and the forward abutment block 22 enables dynamic monitoring of the forward rotation endpoint of the rotating platform 12. When the sliding abutment block 24 approaches the forward abutment block 22, the forward sensor 27 can trigger a signal to stop the drive in time; similarly, the reverse sensor 28 monitors the reverse rotation endpoint. This configuration breaks through the blind spot of traditional mechanical limiters. Through the synergy of electronic sensing and mechanical limiters, the rotating platform 12 can achieve precise positioning at both forward and reverse extreme positions, ensuring 360-degree rotation capability without blind spots and avoiding the risk of overtravel caused by mechanical limiter errors. The independent setting of the forward sensor 27 and the reverse sensor 28 ensures that the displacement detection during forward and reverse rotation does not interfere with each other, forming closed-loop feedback, thus ensuring the symmetry and stability of the rotation control.

[0044] In this embodiment, the forward sensor 27 is connected to one end of the sliding abutment block 24 near the forward abutment block 22, and the reverse sensor 28 is connected to one end of the sliding abutment block 24 near the reverse abutment block 23.

[0045] By integrating the forward sensor 27 and the reverse sensor 28 at both ends of the sliding abutment block 24, the displacement state of the sliding abutment block 24 relative to the forward abutment block 22 and the reverse abutment block 23 is directly monitored. When the rotating platform 12 rotates forward, the sliding abutment block 24 moves along the slide rail toward the forward abutment block. At this time, the forward sensor 27 senses the proximity of the sliding abutment block 24 to the forward abutment block 22 in real time and triggers a signal to decelerate the rotating drive component in advance before the two make contact. Similarly, when rotating in the reverse direction, the reverse sensor 28 monitors the proximity of the sliding abutment block 24 to the reverse abutment block 23 in real time. This design, which directly installs the sensor at the end of the sliding abutment block's movement path, can eliminate the detection delay of traditional external sensors. Through the displacement synchronous detection mechanism, it ensures that the rotating platform completes precise braking before contacting the limit block, thereby achieving physical limitation while retaining a complete 360-degree rotation space.

[0046] In this embodiment, both the forward sensor 27 and the reverse sensor 28 are photoelectric sensors.

[0047] A photoelectric sensor is used as the detection element. The photoelectric sensor has non-contact detection characteristics, avoiding the impact of mechanical wear on detection accuracy. Simultaneously, its high sensitivity and fast response characteristics accurately capture the relative positional changes between the sliding contact block and the sensor. When the rotating platform 12 rotates in both directions, the photoelectric sensor accurately determines whether the sliding contact block 24 has reached the predetermined position through changes in the light signal. Compared with traditional mechanical sensors, this solution effectively reduces the probability of false triggering. By setting both the forward sensor 27 and the reverse sensor 28 as photoelectric sensors, consistency in forward and reverse detection methods is maintained, and high-resolution detection of the displacement of the sliding contact block 24 is achieved through optical principles, providing reliable technical assurance for the full-angle, blind-zone-free limiting of the rotating platform 12.

[0048] In this embodiment, the rotary drive component 13 is an arc-shaped motor.

[0049] An arc-shaped motor is used as the rotary drive component 13. Its arc-shaped body structure can adapt to the circular motion trajectory of the rotating platform 12, and the radial space occupation of the drive component is reduced by the arc-surface fitting installation method. This structure avoids the interference of the rotation trajectory caused by the excessive size of traditional linear motors or ordinary rotary motors, and can achieve smooth large-angle rotation drive by utilizing the torque output characteristics of the arc-shaped motor. Compared with traditional drive devices, the arc-shaped motor has a higher geometric matching degree with the motion trajectory of the rotating platform 12, which effectively reduces the axial installation space while ensuring drive accuracy, creating conditions for the coordinated work of the limit component and the rotating platform 12, and enabling full-angle rotation and mechanical limit to coexist. Example 2

[0050] See Figure 2 As shown, this utility model discloses an embodiment of the all-angle detection device.

[0051] The all-angle detection device includes:

[0052] The aforementioned full-angle precision motion module, wherein the rotating platform 12 is provided with a central hole 121 for the object to be tested to pass through;

[0053] The detection module includes an X-ray source 3 and a receiver 4, wherein the X-ray source 3 is used to emit signals and the receiver 4 is used to receive signals.

[0054] The rotating platform and limiting components in the full-angle precision motion module work together to achieve 360-degree rotation without dead zones and precise limiting. The central hole 121 of the rotating platform 12 allows the object to be inspected to pass through, enabling the detection module to perform a full-circumference scan around the object.

[0055] Furthermore, the detection module also includes a first lead screw drive assembly 5 that moves the X-ray source 3 closer to and away from the center of the rotating platform 12, and a second lead screw drive assembly 6 that moves the receiver 4 closer to and away from the center of the rotating platform 12.

[0056] The X-ray source 3 and receiver 4 of the detection module are adjusted in position relative to the center of the rotating platform 12 via the first lead screw drive assembly 5 and the second lead screw drive assembly 6. This adapts to the detection needs of items of different sizes while avoiding structural interference between the detection module and the rotating platform 12. Both the first lead screw drive assembly 5 and the second lead screw drive assembly 6 are servo lead screw drive assemblies. The introduction of servo lead screw drive assemblies allows the X-ray source 3 and receiver 4 to move radially, ensuring both the detection coverage area and preventing dead zones caused by the fixed installation of the detection module when the rotating platform 12 rotates 360 degrees. The full-angle rotation capability of the rotating platform 12, combined with the adjustability of the detection module, enables the device to achieve both limit function and dead-angle-free detection capability.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A full angle rotary precision motion module, characterized in that, The application relates to a full-angle rotary precision motion module. The rotary component comprises a fixed support, a rotary platform and a rotary driving element, the rotary platform is rotatably connected to the fixed support, and the rotary driving element is installed on the fixed support and drives the rotary platform to rotate. The limiting component comprises a sliding rail, a forward abutting block, a reverse abutting block, a sliding abutting block and an abutting arm, the sliding rail, the forward abutting block and the reverse abutting block are fixed relative to the fixed support, the sliding abutting block is slidably connected to the sliding rail and located between the forward abutting block and the reverse abutting block, and the abutting arm is fixed relative to the rotary platform. The forward abutting block and the reverse abutting block avoid the rotation track of the abutting arm, and the sliding abutting block is located on the rotation track of the abutting arm. When the rotary platform rotates forward, the abutting arm and the sliding abutting block abut against each other for limiting, and the sliding abutting block and the forward abutting block abut against each other for limiting. When the rotary platform rotates reversely, the abutting arm and the sliding abutting block abut against each other for limiting, and the sliding abutting block and the reverse abutting block abut against each other for limiting.

2. The full angle rotary precision motion module of claim 1, wherein, The sliding rail is located on the radial outer side of the rotary platform, the sliding rail extends along the tangential direction of the rotary platform, and the abutting arm extends along the radial direction of the rotary platform.

3. The full angle rotary precision motion module of claim 1, wherein, The limiting component further comprises a buffer column, which is used for buffering the impact force when the sliding abutting block contacts the forward abutting block, the reverse abutting block and the abutting arm.

4. The full angle rotary precision motion module of claim 3, wherein, The forward abutting block, the reverse abutting block and the abutting arm are all connected with the buffer column.

5. The full angle rotary precision motion module of claim 1, wherein, The limiting component further comprises a forward sensor and a reverse sensor, the forward sensor is used for detecting whether the sliding abutting block reaches a position close to the forward abutting block, and the reverse sensor is used for detecting whether the sliding abutting block reaches a position close to the reverse abutting block.

6. The full angle rotary precision motion module of claim 5, wherein, The forward sensor is connected to one end of the sliding abutting block close to the forward abutting block, and the reverse sensor is connected to one end of the sliding abutting block close to the reverse abutting block.

7. The full angle rotary precision motion module of claim 5, wherein, The forward sensor and the reverse sensor are both photoelectric sensors.

8. The full angle rotary precision motion module of claim 1, wherein, The rotary driving element is an arc-shaped motor.

9. A full angle detection device, characterized by The application relates to a full-angle rotary precision motion module. The rotary platform is provided with a central hole for a to-be-detected article to pass through. The detection module comprises a ray source and a receiver, the ray source is used for emitting a signal, and the receiver is used for receiving a signal.

10. The full angle detection device according to claim 9, characterized in that The detection module further comprises a first screw rod driving assembly for driving the ray source to be close to and away from the center of the rotary platform and a second screw rod driving assembly for driving the receiver to be close to and away from the center of the rotary platform.

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