Signal coupling transmission device

Abstract

The invention discloses a signal coupling transmission device, and relates to the technical field of signal coupling, the signal coupling transmission device comprises a workpiece fixing assembly and a positioning assembly, the workpiece fixing assembly comprises a turntable, a clamp, a pressure sensing mechanism and a processor mechanism, and the clamp is arranged on the turntable and used for clamping and fixing a circular workpiece; the pressure sensing mechanism is arranged on the clamp and used for sensing the clamping force of the clamp on the circular workpiece, and the processor mechanism is detachably connected to the pressure sensing mechanism in an inserted mode. The positioning assembly comprises a first positioning piece and a second positioning piece, the first positioning piece is arranged on the rotary disc, the second positioning piece can limit movement of the first positioning piece when the rotary disc rotates so that the rotary disc can stay at a preset position, and therefore the processor mechanism is connected to the pressure sensing mechanism in an inserted mode to measure the clamping force of the clamp on the circular workpiece. And a force sensing signal of the pressure sensor can be smoothly transmitted to the processor mechanism, so that the normal operation and the accuracy of the detection system are ensured.

Description

Technical Field

[0001] This invention relates to the field of signal coupling technology, and more specifically to a signal coupling transmission device. Background Technology

[0002] When performing ultrasonic testing on circular workpieces, to ensure accuracy, the workpiece is typically clamped and fixed using a fixture on a rotating platform before the platform is rotated. This 360-degree rotation allows the ultrasonic waves emitted by the transmitter to strike different circumferential surfaces of the workpiece, improving the accuracy of the test results. Furthermore, the outer surface of a circular workpiece is relatively fragile, making it unsuitable to use excessive clamping force for centering. Therefore, pressure sensors are required on the fixture to monitor the clamping force applied in real time, allowing for timely adjustments to the stress on the workpiece.

[0003] However, because the rotating platform cannot be fixed in a specific position, it is difficult for the pressure sensor on the fixture to establish a stable physical connection with the subsequent processor. The force sensing signal of the pressure sensor is difficult to be transmitted to the processor smoothly, which limits the normal operation and accuracy of the detection system. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a signal coupling transmission device to solve the technical problem that the rotating platform of the signal coupling transmission device in the prior art cannot be fixed in a specific position, which makes it difficult for the pressure sensor on the fixture to establish a stable physical connection with the subsequent processor, and the force sensing signal of the pressure sensor is difficult to be smoothly transmitted to the processor, thus limiting the normal operation and accuracy of the detection system.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides a signal coupling and transmission device, comprising: A workpiece fixing assembly includes a turntable, a clamp, a pressure sensing mechanism, and a processor mechanism. The clamp is disposed on the turntable and is used to clamp and fix a circular workpiece. The pressure sensing mechanism is disposed on the clamp and is used to sense the clamping force of the clamp on the circular workpiece. The processor mechanism is detachably plugged into the pressure sensing mechanism. The positioning component includes a first positioning element and a second positioning element. The first positioning element is disposed on the turntable, and the second positioning element has a limiting state that cooperates with the first positioning element to stop the turntable at a preset position, and an unlocking state that releases the limiting of the turntable. When the turntable stops at the preset position, the processor mechanism can be inserted into the pressure sensing mechanism.

[0006] In some embodiments, the first positioning element is a magnetic element and the second positioning element is a magnetic sensor. The magnetic element can approach the magnetic sensor when the turntable rotates so as to magnetically attract and remain relatively fixed with the magnetic sensor. When the magnetic sensor is magnetically attracted and fixed with the magnetic element, the turntable is stopped at the preset position.

[0007] In some embodiments, the pressure sensing mechanism includes a pressure sensor, a wire, and a contact. The pressure sensor is disposed on the clamp, the contact is disposed on the turntable, and the two ends of the wire connect the pressure sensor and the contact. When the turntable is stopped at the preset position, the processor mechanism can be detachably connected to the contact.

[0008] In some embodiments, the pressure sensing mechanism further includes a positioning block disposed on the turntable, the positioning block having a connecting plane on the side facing the processor mechanism, and having multiple contacts, all of which are disposed on the connecting plane.

[0009] In some embodiments, the connecting plane has a positioning hole for detachably connecting with the processor mechanism. When the processor mechanism is inserted into the positioning hole, the processor mechanism can connect with the contact point.

[0010] In some embodiments, the processor mechanism includes a drive member, a moving member, and a pin, the pin being disposed on the side of the moving member facing the turntable, the drive member being connected to the moving member and capable of driving the moving member to reciprocate in a linear motion, so that the pin is detachably connected to the contact.

[0011] In some embodiments, the processor mechanism further includes a positioning pin that can be detachably inserted into the positioning hole when the moving part moves; when the positioning pin is inserted into the positioning hole, the ejector pin can connect to the contact point.

[0012] In some embodiments, the processor mechanism further includes a buffer spring connecting the ejector pin and the moving member. The buffer spring is capable of accumulating elastic force when the ejector pin abuts against the contact point and releasing the elastic force when the ejector pin disengages from the contact point to drive the ejector pin to reset.

[0013] In some embodiments, the clamp includes a plurality of lead screws and a plurality of clamping members. The plurality of lead screws are arranged around the periphery of the turntable and are rotatably disposed on the turntable. The plurality of clamping members are threadedly connected to the plurality of lead screws. When the plurality of lead screws rotate, they can drive the plurality of clamping members to press against the circular workpiece. The pressure sensing mechanism is disposed on the clamping members.

[0014] In some embodiments, the clamp further includes a drive motor, a rotating shaft, and a bevel gear, wherein the drive motor is connected to the bevel gear via the rotating shaft, and the bevel gear simultaneously engages multiple lead screws.

[0015] Compared with existing technologies, the signal coupling and transmission device provided by this invention has a clamp capable of holding and fixing a circular workpiece. During rotation, the turntable is restrained by the mutual restraint of the first and second positioning members, allowing it to remain at a preset position. At this time, the processor mechanism can slide into the pressure sensing mechanism, enabling the pressure sensing mechanism to transmit the clamping force information of the clamp on the circular workpiece to the processor mechanism. Operators can view the clamping force through the processor mechanism to adjust the clamping force on the circular workpiece in a timely manner, avoiding damage to the workpiece. Therefore, this application can ensure that the turntable remains at a preset position through the mutual restraint of the first and second positioning members, and that the processor mechanism can establish a stable connection with the pressure sensing mechanism. The force sensing signal from the pressure sensing mechanism can be smoothly transmitted to the processor mechanism, ensuring the normal operation and accuracy of the detection system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the signal coupling and transmission device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the signal coupling and transmission device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of another embodiment of the signal coupling and transmission device provided in this invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] To address the technical problem in existing signal coupling transmission devices where the rotating platform cannot be fixed in a specific position, making it difficult for the pressure sensor on the fixture to establish a stable physical connection with the subsequent processor, and hindering the smooth transmission of the force sensing signal from the pressure sensor to the processor, thus limiting the normal operation and accuracy of the detection system, this invention provides a signal coupling transmission device that enables the pressure sensor to remain in a fixed position, establish a stable physical connection with the subsequent processor, and smoothly transmit the force sensing signal from the pressure sensor to the processor, thereby ensuring the normal operation and accuracy of the detection system.

[0019] It should be noted that the signal coupling transmission device described in this invention is used for, but not limited to, the detection of clamping force of circular workpieces. For ease of explanation, this invention will only use the application of the signal coupling transmission device to the detection of clamping force of circular workpieces as an example. The principle of the signal coupling transmission device applied to other types of equipment is essentially the same as that applied to circular workpieces, and will not be described in detail here.

[0020] Please see Figure 1 , Figure 1 This is a schematic diagram of a signal coupling transmission device according to an embodiment of the present invention. The signal coupling transmission device 100 includes a workpiece fixing assembly 1 and a positioning assembly 2. The workpiece fixing assembly 1 includes a turntable 11, a clamp 12, a pressure sensing mechanism 13, and a processor mechanism 14. The clamp 12 is disposed on the turntable 11 and is used to clamp and fix a circular workpiece. The pressure sensing mechanism 13 is disposed on the clamp 12 and is used to sense the clamping force of the clamp 12 on the circular workpiece. The processor mechanism 14 is detachably plugged into the pressure sensing mechanism 13. The positioning assembly 2 includes a first positioning member 21 and a second positioning member 22. The first positioning member 21 is disposed on the turntable 11. The second positioning member 22 can restrict the movement of the first positioning member 21 when the turntable 11 rotates, so that the turntable 11 stops at a preset position. At this time, the second positioning member 22 is in a limited position. When the turntable 11 stops at the preset position, the processor mechanism 14 can be plugged into the pressure sensing mechanism 13 and receive the pressure detection information of the pressure sensing mechanism 13 on the circular workpiece. The processor mechanism 14 can be connected to a display device such as a monitor and transmit the detected pressure information to the display device. Operators can visually view the pressure information on the circular workpiece through the display device, allowing for timely adjustment of the pressure on the workpiece and preventing damage to the workpiece by the clamp 12. The second positioning element 22 can also be switched to an unlocked state to release its limiting effect on the turntable 11, allowing the turntable 11 to rotate again. The rotation of the turntable 11 can be driven by a corresponding motor; this drive structure is existing technology and will not be described in detail here.

[0021] The processor mechanism 14 of this application is mainly inserted into the pressure sensing mechanism 13 by sliding. The pressure sensing mechanism 13 is located on the turntable 11 and can rotate with the turntable 11. Therefore, the turntable 11 needs to rotate to a preset position so that the pressure sensing mechanism 13 is in the insertion position. Only then can the processor mechanism 14 slide toward the pressure sensing mechanism 13 and complete the insertion connection. This application can make the turntable 11 stay in the preset position by mutual restraint of the first positioning member 21 and the second positioning member 22. The processor mechanism 14 can establish a stable connection with the pressure sensing mechanism 13, and the force sensing signal of the pressure sensing mechanism 13 can be smoothly transmitted to the processor mechanism 14, ensuring the normal operation and accuracy of the detection system.

[0022] After the clamping force of the circular workpiece is adjusted to a suitable level by combining the pressure sensing mechanism 13 and the processor mechanism 14, the processor mechanism 14 can be disassembled from the pressure sensing mechanism 13. At this time, the turntable 11 can be driven to rotate. The ultrasonic transmitter is fixed at a certain position outside the turntable 11. The ultrasonic transmitter sends ultrasonic waves to the circular workpiece. The circular workpiece rotates with the rotation of the turntable 11. The ultrasonic waves can be incident on different circumferential surfaces of the circular workpiece to perform ultrasonic testing on the circular workpiece.

[0023] There are many ways in which the first positioning member 21 and the second positioning member 22 mutually restrict each other. In one embodiment, please refer to... Figure 1 The first positioning element 21 is a magnetic element, and the second positioning element 22 is a magnetic sensor. When the magnetic sensor is powered on, the magnetic element can approach the magnetic sensor as the turntable 11 rotates, maintaining relative fixation through magnetic attraction, thus keeping the turntable 11 stationary at a preset position. In this embodiment, the magnetic element is installed at the edge of the turntable 1 and moves as the turntable 1 rotates. The magnetic sensor is fixed near the turntable 11. When the turntable 11 rotates, the magnetic element approaches the magnetic sensor, and the two maintain relative fixation through magnetic attraction, thus keeping the turntable 11 stationary at the preset position. When the magnetic sensor is de-powered, the magnetic sensor releases its magnetic attraction to the magnetic element, the turntable 11 is released from its restriction, and can rotate again.

[0024] In other embodiments, the first positioning member 5 and the second positioning member 6 may also adopt other forms of positioning structures, such as mechanical limiting structures or photoelectric sensors, as long as the turntable 11 can be fixed in a preset position. In addition, the connection method between the pressure sensing mechanism 13 and the processor mechanism 14 can also be adjusted according to actual needs, such as adopting a wireless transmission method, to further improve the flexibility and applicability of the device.

[0025] In one embodiment, please refer to Figure 1 The pressure sensing mechanism 13 includes a pressure sensor 131, a wire 132, and a contact 133. The pressure sensor 131 is located on the clamp 12, and the contact 133 is located on the turntable 11. The two ends of the wire 132 connect the pressure sensor 131 and the contact 133. When the turntable 11 is in a preset position, the processor mechanism 14 can be detachably connected to the contact 133. In this embodiment, the pressure sensor 131 is installed on the clamping part of the clamp 12. When the clamp 12 clamps a circular workpiece, the pressure sensor 131 can directly contact the circular workpiece to monitor the clamping force of the clamp 12 on the circular workpiece in real time. The wire 132 connects the pressure sensor 131 and the contact 133, transmitting the electrical signal generated by the pressure sensor 131 to the contact 133. The contact 133 is installed on the side surface of the turntable 1 and is used to establish an electrical connection with the processor mechanism 14.

[0026] In one embodiment, please refer to Figure 1 The pressure sensing mechanism 13 also includes a positioning block 134 disposed on the turntable 11. The side of the positioning block 134 facing the processor mechanism 14 has a connecting plane 135, and there are multiple contacts 133, all of which are disposed on the connecting plane 135. In this embodiment, the positioning block 134 is mounted on the turntable 11, and the side of the positioning block 134 facing the processor mechanism 14 has a connecting plane 135. There are multiple contacts 133, which are evenly distributed on the connecting plane 135 to ensure a reliable connection with the processor mechanism 14.

[0027] In one embodiment, please refer to Figure 1 The connecting plane 135 has a positioning hole 136, which is used for detachable insertion with the processor mechanism 14. When the processor mechanism 14 is inserted into the positioning hole 136, the processor mechanism 14 can be connected to the contact 133. In this embodiment, by providing a positioning hole 136 on the connecting plane 135, the positioning hole 136 is used to cooperate with the insertion component of the processor mechanism 14, ensuring that the processor mechanism 14 can be accurately connected to the contact 133.

[0028] In this embodiment, in one embodiment, please refer to Figure 1 The processor mechanism 14 includes a drive member 141, a moving member 142, and a ejector pin 143. The ejector pin 143 is located on the side of the moving member 142 facing the turntable 11. The drive member 141 is connected to the moving member 142 and can drive the moving member 142 to reciprocate linearly, so that the ejector pin 143 can be detachably connected to the contact point 133. In this embodiment, the ejector pin 143 is installed on the side of the moving member 142 facing the turntable 11 for connection with the contact point 133. The drive member 141 can be a cylinder. The moving member 142 can be slidably mounted on a fixed slide rail, so that the moving member 142 can reciprocate along the fixed slide rail under the drive of the cylinder. The moving member 142 reciprocates linearly, and when the moving member 142 slides toward the ejector pin 143, the ejector pin 143 can establish an electrical connection with the contact point 133. When the circular workpiece is adjusted to the appropriate clamping force, the ejector pin 143 can be controlled to disengage from the contact point 133, and then the turntable 11 can be rotated to use the ultrasonic transmitter to perform ultrasonic testing on the circular workpiece.

[0029] Furthermore, the processor mechanism 14 also includes a positioning pin 144, which is mounted on the moving part 142 and can be inserted into the positioning hole 136 of the connecting plane 135 when the moving part 142 moves, thereby ensuring the accurate connection between the ejector pin 143 and the contact 133.

[0030] Furthermore, please refer to Figure 1The processor mechanism 14 also includes a buffer spring 145, which connects the ejector pin 143 and the moving part 142. The buffer spring 145 can accumulate elastic force when the ejector pin 143 abuts against the contact point 133, and can release the elastic force when the ejector pin 143 disengages from the contact point 133 to drive the ejector pin 143 to reset. The processor mechanism 14 also includes a buffer spring 145. The buffer spring 145 connects the ejector pin 143 and the moving part 142. When the ejector pin 143 abuts against the contact point 133, the buffer spring 145 can accumulate elastic force to buffer the contact point 133, preventing it from being easily damaged by rigid force. When the ejector pin 143 disengages from the contact point 133, the buffer spring 145 releases the elastic force to drive the ejector pin 143 to reset for the next use.

[0031] In one embodiment, please refer to Figure 1 The clamp 12 includes multiple lead screws 121 and multiple clamping members 122. The multiple lead screws 121 are arranged around the circumference of the turntable 11, and each lead screw 121 is rotatably mounted on the turntable 11. The multiple clamping members 122 are threadedly connected to the multiple lead screws 121. When the multiple lead screws 121 rotate, they can drive the multiple clamping members 122 to press against the circular workpiece. A pressure sensor 131 is disposed on the clamping member 122. In this embodiment, the multiple lead screws 121 are evenly arranged around the circumference of the turntable 11, and adjacent two lead screws 121 are arranged at an angle. Each lead screw 121 is mounted on the turntable 11 through a bearing and can rotate freely. Figure 1 The diagram shows three clamping members 122 and three lead screws 121. Each clamping member 122 is threadedly connected to one of the three lead screws 121. The rotation of the lead screws 121 drives the clamping members 122 to move radially along the turntable 11, thereby enabling the clamping and releasing of the circular workpiece by multiple clamping members 122. Three pressure sensors 131 are also present, each located on one of the three clamping members 122. During clamping, the three pressure sensors 131 directly contact the circular workpiece to monitor the clamping force exerted by the three clamping members 122 on the circular workpiece.

[0032] In one embodiment, please refer to Figure 1 and Figure 2The fixture 12 also includes a drive motor 123, a transmission belt 126, a rotating shaft 124, and a bevel gear 125. The drive motor 123 has a rotating shaft connected to the transmission belt 126 via a drive shaft. The other side of the transmission belt 126 is sleeved with the rotating shaft 124. The rotating shaft 124 is connected to the bevel gear 125 and is coaxially arranged. The bevel gear 125 simultaneously meshes with the adjacent ends of multiple lead screws 121. When the drive motor 123 starts, it drives the transmission belt 126 to move via its drive shaft. The transmission belt 126 drives the rotating shaft 124 to rotate, and the rotating shaft 124 drives the bevel gear 125 to rotate. The bevel gear 125, through meshing, drives the multiple lead screws 121 to rotate synchronously, achieving synchronous close movement of multiple clamping elements 22 and ensuring a uniform distribution of clamping force on the circular workpiece.

[0033] In one embodiment, please refer to Figure 3 The three lead screws 121 mentioned above can also be driven by three movable motors 127 respectively, so that the three lead screws 121 drive the three clamping members 122 to slide back and forth, thereby clamping or detaching the circular workpiece.

[0034] In one embodiment, a gyroscope (not shown) can also be installed on the turntable 11. The first positioning member 21 and the second positioning member 22 sense each other through a magnetic component and a magnetic sensor. After the circular workpiece is clamped and fixed, the magnetic sensor is temporarily de-energized, driving the turntable 11 to rotate multiple times at a suitable speed. The signal fed back by the gyroscope is observed to determine whether the turntable 11 rotates evenly. If it is evenly rotated, the rotation of the turntable 11 is paused, the magnetic sensor is activated, and the turntable 11 stops at a preset position, driving the processor mechanism 14 to connect multiple contacts 133. If it is not evenly rotated, it indicates that the circular workpiece is not placed correctly. The gyroscope can be connected to an alarm, which can be triggered to prompt the staff to reposition the circular workpiece. In this embodiment, the gyroscope is used to detect the placement position of the circular workpiece, so that when the multiple clamping members 122 clamp the circular workpiece, the circular workpiece is subjected to uniform force, and the feedback clamping force is real and reliable. A placement slot (not shown in the figure) is provided at the center of the turntable 11. When a circular workpiece is placed in the placement slot, there may be a positional deviation, so it is necessary to use a gyroscope to detect whether it is placed correctly.

[0035] In this embodiment, the gyroscope is mounted on the turntable 11 and connected to contact 133 on the turntable 11 via wires. When the turntable 11 rotates, the gyroscope rotates with it without relative motion. During the rotation of the turntable 11, the gyroscope measures the angular momentum and other motion information of the turntable 11 in real time and stores this motion information in the gyroscope's internal memory, which is connected to contact 133. When the turntable 11 stops rotating and stops at a preset position, the processor mechanism 14 connects to multiple contacts 133. The motion information of the turntable 11 stored in the gyroscope's internal memory is then transmitted to the processor mechanism 14. The processor mechanism 14 is connected to a display device such as a monitor and transmits the detected information to the display device. Operators can visually view the angular momentum and other information of the turntable 11 through the display device to determine whether the circular workpiece has been correctly placed.

[0036] To better understand this invention, the following is combined with... Figure 1 The technical solution of the present invention will be described in detail below: Compared with existing technologies, the signal coupling and transmission device 100 provided by this invention, through the mutual constraint of the first positioning member 21 and the second positioning member 22, enables the turntable 11 to remain in a preset position, and the processor mechanism 14 to establish a stable connection with the pressure sensing mechanism 13. The force sensing signal of the pressure sensor 131 can be smoothly transmitted to the processor mechanism 14, allowing the operator to monitor the clamping force of the clamp 12 in real time and adjust the clamping force in a timely manner to avoid damage to the circular workpiece. This device effectively solves the problems of unstable signal transmission and limited operation of the detection system in existing technologies, improving the normal operation and accuracy of the detection system.

[0037] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A signal coupling and transmission device, characterized in that, include: A workpiece fixing assembly includes a turntable, a clamp, a pressure sensing mechanism, and a processor mechanism. The clamp is disposed on the turntable and is used to clamp and fix a circular workpiece. The pressure sensing mechanism is disposed on the clamp and is used to sense the clamping force of the clamp on the circular workpiece. The processor mechanism is detachably plugged into the pressure sensing mechanism. and The positioning component includes a first positioning element and a second positioning element. The first positioning element is disposed on the turntable, and the second positioning element has a limiting state that cooperates with the first positioning element to stop the turntable at a preset position, and an unlocking state that releases the limiting of the turntable. When the turntable stops at the preset position, the processor mechanism can be inserted into the pressure sensing mechanism.

2. The signal coupling and transmission device according to claim 1, characterized in that, The first positioning element is a magnetic element, and the second positioning element is a magnetic sensor. The magnetic element can approach the magnetic sensor when the turntable rotates so as to magnetically attract and remain relatively fixed with the magnetic sensor. When the magnetic sensor is magnetically attracted and fixed with the magnetic element, the turntable is stopped at the preset position.

3. The signal coupling and transmission device according to claim 1, characterized in that, The pressure sensing mechanism includes a pressure sensor, a wire, and a contact. The pressure sensor is located on the clamp, and the contact is located on the turntable. The two ends of the wire connect the pressure sensor and the contact. When the turntable is stopped at the preset position, the processor mechanism can be detachably connected to the contact.

4. The signal coupling and transmission device according to claim 3, characterized in that, The pressure sensing mechanism further includes a positioning block disposed on the turntable. The side of the positioning block facing the processor mechanism has a connecting plane, and there are multiple contacts, all of which are disposed on the connecting plane.

5. The signal coupling and transmission device according to claim 4, characterized in that, The connecting plane has a positioning hole for detachable insertion with the processor mechanism. When the processor mechanism is inserted into the positioning hole, the processor mechanism can be connected to the contact point.

6. The signal coupling and transmission device according to claim 5, characterized in that, The processor mechanism includes a drive component, a moving component, and a pin. The pin is located on the side of the moving component facing the turntable. The drive component is connected to the moving component and can drive the moving component to reciprocate in a linear motion, so that the pin can be detachably connected to the contact point.

7. The signal coupling and transmission device according to claim 6, characterized in that, The processor mechanism also includes a positioning pin, which can be detachably inserted into the positioning hole when the moving part moves; when the positioning pin is inserted into the positioning hole, the ejector pin can connect to the contact point.

8. The signal coupling and transmission device according to claim 6, characterized in that, The processor mechanism also includes a buffer spring that connects the ejector pin and the moving part. The buffer spring can accumulate elastic force when the ejector pin abuts the contact point and can release the elastic force when the ejector pin disengages from the contact point to drive the ejector pin to reset.

9. The signal coupling and transmission device according to claim 1, characterized in that, The fixture includes multiple lead screws and multiple clamping members. The multiple lead screws are arranged around the circumference of the turntable and are rotatably mounted on the turntable. The multiple clamping members are threadedly connected to the multiple lead screws. When the multiple lead screws rotate, they can drive the multiple clamping members to press against the circular workpiece. The pressure sensing mechanism is located on the clamping members.

10. The signal coupling and transmission device according to claim 9, characterized in that, The fixture also includes a drive motor, a rotating shaft, and a bevel gear. The drive motor is connected to the bevel gear through the rotating shaft, and the bevel gear simultaneously meshes with multiple lead screws.

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