A teleoperated tool tensioning mechanism

The teleoperated tool tensioning mechanism, through the combined design of the contour block and the expansion unit, solves the problem of traditional fixing devices not being able to securely fix workpieces with complex shapes, achieving precise positioning and stable fixation of the workpiece, and improving processing quality and efficiency.

CN121776540BActive Publication Date: 2026-05-19HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
Filing Date
2026-03-09
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional workpiece fixing devices are difficult to effectively fix workpieces with complex or irregular shapes, resulting in problems such as insecure fixing and inaccurate positioning during processing, which affects processing quality and efficiency.

Method used

The telescopic tool tensioning mechanism uses a combination design of a contour block and an expansion unit. The contour block is initially positioned by fitting against the workpiece, and the expansion flap and the clamping sleeve provide a stable fixation. The workpiece is then verified to be in place by a manual verification pin.

Benefits of technology

It achieves precise positioning and reliable fixation of workpieces, preventing them from loosening or falling off during processing, improving processing accuracy and production efficiency, reducing noise and wear of the mechanism, and extending its service life.

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Abstract

The present application relates to the technical field of workpiece positioning, and particularly relates to a teleoperation tool tensioning mechanism. The technical scheme comprises: a rotating head is arranged at the top end of a support frame, and a cable rack is arranged on one side; a manual pin is arranged on the frame through a sliding block and a sliding rail, and a T-shaped handle is connected to the tail end; two symmetrically distributed tightening mechanisms are arranged on the frame; symmetrically distributed side modules are arranged on both sides, and the side modules comprise a push plate, a profiling block and a first driving unit, the first driving unit drives the push plate to slide so that the profiling block is attached to the workpiece; the tightening mechanism comprises a second driving unit, a transmission unit and an expansion unit, the second driving unit drives the expansion unit to be clamped into a compression sleeve through the transmission unit; the profiling block and the expansion unit are limited by clamping force, and the manual pin is inserted into a verification hole to verify the installation of the workpiece. Through the cooperation of multiple mechanisms, the present application realizes efficient and accurate positioning and tensioning of the workpiece, improves the assembly efficiency and quality, and has significant practical value and popularization prospect.
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Description

Technical Field

[0001] This invention relates to the field of workpiece positioning technology, and more specifically to a tensioning mechanism for a remotely operated tool. Background Technology

[0002] In modern industrial processing, precise workpiece positioning and secure fixation are crucial for ensuring processing quality, improving production efficiency, and guaranteeing safe equipment operation. As the manufacturing industry moves towards higher precision, higher efficiency, and greater diversification, the performance requirements for workpiece positioning and fixing devices are becoming increasingly stringent. Workpieces of different specifications and shapes require precise positioning during processing to achieve accuracy, while also needing a stable and reliable fixing method to prevent loosening or displacement during processing, thereby avoiding processing errors and ensuring the processing accuracy and quality stability of the products.

[0003] Currently, many traditional workpiece fixing devices employ general-purpose methods such as clamps and chucks. These devices struggle to provide effective fixing solutions for workpieces with complex or irregular shapes. For example, in the manufacturing of aerospace components and automotive molds, workpieces often have very complex shapes with multiple curved surfaces and irregular contours. Traditional fixing devices struggle to provide comprehensive and stable fixation for these workpieces, easily leading to localized stress concentrations and workpiece deformation during processing, severely impacting processing quality and production efficiency. When fixing irregularly shaped workpieces, issues such as insecure fixing and inaccurate positioning may arise, causing workpiece displacement or vibration during processing, thus affecting machining accuracy and product quality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a teleoperated tool tensioning mechanism, which solves the problems mentioned in the background art.

[0005] The solution of the present invention to the above-mentioned technical problems is as follows:

[0006] A teleoperated tool tensioning mechanism, comprising:

[0007] A support frame, the top of which is equipped with a rotating head, and a cable rack is provided on one side of the rotating head;

[0008] A manual verification pin is installed on the support frame via a slider and a slide rail, and a T-shaped handle is connected to the end of the manual verification pin.

[0009] A tightening mechanism is provided, which is mounted on the support frame. There are two tightening mechanisms, which are symmetrically distributed on the support frame.

[0010] Side modules are installed on both sides of the support frame and are symmetrically distributed on both sides of the tightening mechanism.

[0011] The side module includes a push plate, a contour block, and a first driving unit. The first driving unit drives the push plate to slide along the support frame so that the contour block fits against the workpiece.

[0012] The tightening mechanism includes a second drive unit, a transmission unit, and an expansion unit. The second drive unit drives the expansion unit to move through the transmission unit, so that the expansion unit is engaged in the clamping sleeve of the workpiece.

[0013] The workpiece is limited by the clamping force of the contour block and the expansion unit, and the workpiece is verified to be installed in place by inserting a verification pin into the verification hole of the workpiece.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the first drive unit includes a first motor, a crankshaft is mounted on the output end of the first motor, a pulley is mounted on the crankshaft, a groove is provided on the push plate, and the pulley is slidably mounted in the groove.

[0016] The beneficial effects of adopting the above-mentioned further solutions are:

[0017] The crankshaft is driven to rotate by a first motor, and the pulleys on the crankshaft slide within the grooves of the push plate. This design cleverly transforms the rotational motion of the motor into the linear reciprocating motion of the push plate, resulting in a simple structure and high transmission efficiency. It can precisely control the moving distance and speed of the push plate, allowing the contour blocks of the side module to conform to the workpiece according to a predetermined trajectory and force, providing precise positioning for the workpiece. This effectively improves the accuracy and stability of positioning, thereby enhancing the overall positioning accuracy of the tensioning mechanism and meeting the requirements of high-precision machining.

[0018] Furthermore, sliders are installed at both ends of the push plate, and slide rails are installed on the support frame. The push plate slides on both sides of the support frame through the cooperation of the sliders and slide rails.

[0019] The beneficial effects of adopting the above-mentioned further solutions are:

[0020] The cooperation between the slider and the slide rail provides stable guidance for the sliding of the push plate, reducing friction and wobbling during the sliding process, making the push plate move more smoothly and steadily. This not only ensures the accuracy of the conforming block when it fits the workpiece, but also reduces noise and wear during the operation of the mechanism, extends the service life of the mechanism, and improves the reliability and stability of the entire tensioning mechanism.

[0021] Furthermore, the second drive unit includes a second motor, and a reducer is installed at the output end of the second motor. The transmission unit includes a connecting shaft and a threaded rod, and the threaded rod is installed at the output end of the reducer via the connecting shaft.

[0022] The beneficial effects of adopting the above-mentioned further solutions are:

[0023] The second motor provides the power source, and the speed reducer can be adjusted and lowered to increase the output torque. The power from the speed reducer is transmitted to the threaded rod via a connecting shaft, allowing the threaded rod to rotate at a suitable speed and torque. This design allows for flexible adjustment of the threaded rod's rotation parameters according to different workpiece fixing requirements, thereby precisely controlling the movement of the expansion unit and ensuring that the expansion flaps engage with the clamping sleeve with appropriate force and speed, achieving a stable and reliable fixation of the workpiece.

[0024] Furthermore, the expansion unit includes a sleeve, a cone, a rod, and an expansion flap. The sleeve is fitted onto the threaded rod, the cone is fitted onto the sleeve, the rod is fitted onto the outside of the sleeve, the rod is connected and fixed to the support frame via a flange, the rod has a through hole, and an expansion flap is installed inside the sleeve, located outside the sleeve. The expansion flap has a protrusion located within the through hole, and the movement direction of the expansion flap is restricted by the protrusion and the through hole.

[0025] The beneficial effects of adopting the above-mentioned further solutions are:

[0026] When the threaded rod rotates, driving the sleeve to move, the conical block on the sleeve compresses the expansion flap. Because the expansion flap's movement is restricted by the protrusion and through-hole, it can only expand outwards in a specific direction. This structural design cleverly utilizes the principle of mechanical transmission, converting the linear motion of the sleeve into the expansion motion of the expansion flap. This allows the expansion flap to accurately engage with the internal groove of the clamping sleeve, providing a stable fixing force for the workpiece. At the same time, this structure is simple and compact, easy to manufacture and install, reducing production costs and maintenance difficulty.

[0027] Furthermore, the end of the sleeve is provided with a limiting plate, and the end of the insertion rod is provided with a cavity. A limiting rod is inserted and installed in the cavity, and the limiting rod passes through the limiting plate, thereby restricting the insertion rod and preventing the insertion rod from rotating with the threaded rod.

[0028] The beneficial effects of adopting the above-mentioned further solutions are:

[0029] The combined design of the limiting disc and limiting rod effectively solves the problem of the insert rod potentially moving during the rotation of the threaded rod. As the threaded rod rotates and drives the sleeve to move, the limiting rod passes through the limiting disc, restricting the rotational freedom of the insert rod and keeping it stationary. This ensures that the expansion flap can stably expand outward under the compression of the cone block, without the expansion effect being affected by the rotation of the insert rod. This ensures the stability and reliability of the workpiece fixation and improves the overall performance of the tensioning mechanism.

[0030] Furthermore, a fixed flange is fitted onto the threaded rod, and the limiting rod inside the cavity is sealed inside the cavity by the fixed flange.

[0031] The beneficial effects of adopting the above-mentioned further solutions are:

[0032] The fixed flange serves two purposes: firstly, it secures the limit rod, preventing it from loosening or falling off during operation and ensuring a consistently stable and reliable restraint effect on the insertion rod; secondly, it seals the limit rod within the cavity, protecting it from external impurities that could affect its normal operation, while also making the overall structure cleaner and more aesthetically pleasing. This design further enhances the structural stability and reliability of the entire tensioning mechanism, extending its service life.

[0033] Furthermore, the clamping sleeve is installed in the positioning hole of the workpiece, and is inserted into the internal groove of the clamping sleeve by the expansion unit to fix the workpiece.

[0034] The beneficial effects of adopting the above-mentioned further solutions are:

[0035] The clamping sleeve is installed inside the positioning hole of the workpiece, and then the workpiece is fixed by the expansion unit engaging the internal groove of the clamping sleeve. This fixing method offers high flexibility and adaptability. A suitable clamping sleeve can be selected based on the size and shape of the positioning hole of different workpieces, allowing the tensioning mechanism to be applicable to fixing workpieces of various specifications and shapes. Simultaneously, the cooperation between the expansion unit and the clamping sleeve provides a large fixing force, effectively preventing the workpiece from loosening or falling off during processing or use, ensuring the stability and reliability of the workpiece fixation, and improving the efficiency and quality of the entire processing.

[0036] This invention provides a tensioning mechanism for a remotely operated tool. It has the following beneficial effects:

[0037] This tensioning mechanism achieves precise positioning and reliable limiting of the workpiece through the unique design of the side module. The first motor of the first drive unit drives the crankshaft to rotate, and the pulley on the crankshaft slides in the groove of the push plate, thereby driving the push plate to slide along the support frame, so that the contour block fits against the workpiece. The contour block is designed according to the shape of the workpiece, which can closely fit the surface of the workpiece and provide precise positioning for the workpiece. At the same time, the friction and contact force between the contour block and the workpiece are used to initially limit the workpiece and prevent the workpiece from shifting during subsequent operations, providing a stable foundation for subsequent fixing operations.

[0038] The tightening mechanism employs a unique expansion-type fixing method, providing a stable and reliable fixation for the workpiece. The second motor of the second drive unit drives the threaded rod to rotate via a reducer and connecting shaft. The threaded rod drives the sleeve to move, and the conical blocks on the sleeve compress the expansion flap outwards, causing the expansion flap to engage with the internal groove of the workpiece clamping sleeve. This fixing method, through the tight fit between the expansion flap and the internal groove of the clamping sleeve, increases the contact area and friction, enabling it to withstand greater external forces and effectively preventing the workpiece from loosening or falling off during processing or use, thus ensuring the stability of the workpiece fixation.

[0039] In the tightening mechanism, a clever structural design prevents the insertion rod from rotating with the threaded rod. A limiting disc is located at the end of the sleeve, and a cavity is provided at the end of the insertion rod. A limiting rod is inserted into the cavity and passes through the limiting disc. Simultaneously, a fixing flange is fitted onto the threaded rod, and the limiting rod within the cavity is sealed by the fixing flange. This design restricts the rotational freedom of the insertion rod, ensuring that it remains stationary while the threaded rod rotates. This guarantees that the expansion flap can expand stably outwards without being affected by the rotation of the insertion rod, thus improving the overall stability and reliability of the mechanism.

[0040] This tensioning mechanism is equipped with a verification manual pin to verify whether the workpiece is installed correctly. The operator can grasp the T-shaped handle at the end of the verification manual pin, move it along the slide rail, and insert it into the verification hole on the workpiece. This verification method is simple, intuitive, and convenient, allowing for quick and accurate determination of whether the workpiece is installed correctly. If the verification manual pin can be smoothly inserted into the verification hole, it indicates that the workpiece is installed correctly; if it cannot be inserted, it indicates a problem with the workpiece installation, requiring timely adjustment. This avoids processing errors or equipment malfunctions caused by improper installation, improving production quality and efficiency.

[0041] There are two tightening mechanisms, symmetrically distributed on the support frame; side modules are installed on both sides of the support frame, symmetrically distributed on both sides of the tightening mechanisms. This symmetrical structural design ensures that the force on the workpiece is more even during the fixing process, avoiding workpiece deformation or insecure fixing caused by uneven force. At the same time, the symmetrical structure also improves the balance and stability of the entire tensioning mechanism, reduces vibration and noise during operation, and extends the service life of the mechanism. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0043] In the attached diagram:

[0044] Figure 1 This is a rear view diagram of the present invention;

[0045] Figure 2 This is a front view schematic diagram of the present invention;

[0046] Figure 3 This is a schematic diagram illustrating the usage state of the present invention;

[0047] Figure 4 This is a schematic cross-sectional view of the insertion rod structure of the present invention;

[0048] Figure 5 This is a schematic diagram of the appearance of the insertion rod of the present invention;

[0049] Figure 6 This is a schematic diagram of the expansion lobe of the present invention;

[0050] Figure 7 This is a schematic diagram of the sleeve connection state of the present invention;

[0051] Figure 8 This is a schematic diagram of the front view of the side module of the present invention;

[0052] Figure 9 This is a schematic diagram of the rear view of the side module of the present invention;

[0053] Figure 10 This is a front view of the right side of the present invention.

[0054] The attached diagram lists the components represented by each number as follows:

[0055] 1. Support frame; 2. Side module; 201. Slide groove; 202. Pulley; 203. Contouring block; 204. Push plate; 205. Slider; 206. Slide rail; 207. First motor; 208. Crankshaft; 3. Verification manual pin; 4. Rotating machine head; 401. Cable rack; 5. Tightening mechanism; 501. Pressing sleeve; 502. Sleeve; 503. Limiting plate; 504. Cavity; 505. Conical block; 506. Insert rod; 507. Through hole; 508. Fixed flange; 509. Connecting shaft; 510. Protrusion; 511. Expansion flap; 512. Reducer; 513. Second motor; 514. Threaded rod; 6. Workpiece. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Please see Figures 1 to 10 As shown, the embodiments provided by the present invention are as follows:

[0058] Example 1:

[0059] A teleoperated tool tensioning mechanism, comprising:

[0060] A support frame 1 is provided, and a rotating head 4 is installed at the top of the support frame 1. A cable rack 401 is provided on one side of the rotating head 4.

[0061] The manual pin 3 is installed on the support frame 1 via the slider 205 and the slide rail 206. The tail end of the manual pin 3 is connected to a T-shaped handle.

[0062] Tightening mechanism 5, the tightening mechanism 5 is installed on the support frame 1, and there are two in total, the two tightening mechanisms 5 are symmetrically distributed on the support frame 1;

[0063] Side module 2 is installed on both sides of the support frame 1 and is symmetrically distributed on both sides of the tightening mechanism 5.

[0064] Side module 2 includes push plate 204, contour block 203 and first drive unit. The first drive unit drives push plate 204 to slide along support frame 1, so that contour block 203 fits against workpiece 6.

[0065] The tightening mechanism 5 includes a second drive unit, a transmission unit, and an expansion unit. The second drive unit drives the expansion unit to move through the transmission unit, so that the expansion unit is engaged in the clamping sleeve 501 of the workpiece 6.

[0066] The workpiece 6 is limited by the clamping force of the contour block 203 and the expansion unit, and the workpiece 6 is verified to be installed in place by inserting the verification pin 3 into the verification hole of the workpiece 6.

[0067] Example 2:

[0068] To achieve more accurate and reliable positioning of the workpiece by the side module, for example, such as Figures 1 to 9 As shown, the present invention also includes:

[0069] The first drive unit includes a first motor 207, with a crankshaft 208 mounted on its output end. A pulley 202 is mounted on the crankshaft 208, and a groove 201 is formed on the push plate 204. The pulley 202 is slidably installed in the groove 201. The first motor 207 drives the crankshaft 208 to rotate, and the pulley 202 on the crankshaft 208 slides in the groove 201 of the push plate 204. This design cleverly converts the rotational motion of the motor into the linear reciprocating motion of the push plate 204, resulting in a simple structure and high transmission efficiency. It can precisely control the moving distance and speed of the push plate 204, allowing the contour block 203 of the side module 2 to conform to the workpiece 6 according to a predetermined trajectory and force, providing precise positioning for the workpiece 6. This effectively improves the accuracy and stability of positioning, thereby enhancing the positioning accuracy of the entire tensioning mechanism for the workpiece 6 and meeting the requirements of high-precision machining.

[0070] Slider 205s are installed at both ends of the push plate 204, and slide rails 206 are installed on the support frame 1. The push plate 204 slides on both sides of the support frame 1 through the cooperation of the sliders 205s and slide rails 206. The cooperation of the sliders 205s and slide rails 206 provides a stable guide for the sliding of the push plate 204, reducing the friction and shaking of the push plate 204 during the sliding process, making the movement of the push plate 204 more stable and smooth. This not only ensures the accuracy of the conforming block 203 when it fits with the workpiece 6, but also reduces the noise and wear during the operation of the mechanism, extends the service life of the mechanism, and improves the reliability and stability of the entire tensioning mechanism.

[0071] Example 3:

[0072] To flexibly adjust the movement of the expansion unit according to different workpiece fixing requirements and achieve stable and reliable fixing of the workpiece, for example, such as Figures 1 to 10 As shown, the present invention also includes:

[0073] The second drive unit includes a second motor 513, with a reducer 512 mounted on its output end. The transmission unit includes a connecting shaft 509 and a threaded rod 514. The output end of the reducer 512 is connected to the threaded rod 514 via the connecting shaft 509. The second motor 513 provides the power source. The reducer 512 allows for adjustment and reduction of the motor's speed while increasing the output torque. The power from the reducer 512 is transmitted to the threaded rod via the connecting shaft 509, enabling the threaded rod 514 to rotate at a suitable speed and torque. This design allows for flexible adjustment of the threaded rod's rotation parameters according to different workpiece 6 fixing requirements, thereby precisely controlling the movement of the expansion unit and ensuring that the expansion flap 511 can engage with the clamping sleeve 501 with appropriate force and speed, achieving a stable and reliable fixation of the workpiece 6.

[0074] The expansion unit includes a sleeve 502, a cone 505, a rod 506, and an expansion flap 511. The sleeve 502 is fitted onto the threaded rod, and the cone 505 is fitted onto the sleeve 502. The rod 506 is fitted onto the outside of the sleeve 502. The rod 506 is connected and fixed to the support frame 1 via a flange. The rod 506 has a through hole 507. The expansion flap 511 is installed outside the sleeve 502. The expansion flap 511 has a protrusion 510, which is located inside the through hole 507. The expansion flap 511 restricts the direction of movement through the protrusion 510 and the through hole 507. When the threaded rod rotates and drives the sleeve 502 to move, the cone 505 on the sleeve 502 will squeeze the expansion flap 511. Since the direction of movement of the expansion flap 511 is restricted by the protrusion 510 and the through hole 507, it can only expand outward in a specific direction. This structural design cleverly utilizes the principle of mechanical transmission, converting the linear motion of the sleeve 502 into the expansion motion of the expansion flap 511. This allows the expansion flap 511 to accurately engage with the internal groove of the clamping sleeve 501, providing a stable fixing force for the workpiece 6. At the same time, this structure is simple and compact, easy to manufacture and install, reducing production costs and maintenance difficulty.

[0075] The sleeve 502 has a limiting disc 503 at its end, and the insertion rod 506 has a cavity 504 at its end. A limiting rod is inserted into the cavity 504 and passes through the limiting disc 503, thus restricting the insertion rod 506 and preventing it from rotating with the threaded rod. The cooperative design of the limiting disc 503 and the limiting rod effectively solves the problem of the insertion rod 506 following the rotation of the threaded rod. During the process of the threaded rod rotating and driving the sleeve 502 to move, the limiting rod passes through the limiting disc 503, restricting the rotational freedom of the insertion rod 506 and keeping it fixed. This ensures that the expansion petal 511 can expand stably outward under the compression of the cone block 505, without affecting the expansion effect due to the rotation of the insertion rod 506, thereby ensuring the stability and reliability of the workpiece 6 and improving the working performance of the entire tensioning mechanism.

[0076] A fixing flange 508 is fitted onto the threaded rod, and the limiting rod within the cavity 504 is sealed within the cavity 504 by the fixing flange 508. The fixing flange 508 serves two purposes: firstly, it secures the limiting rod, preventing it from loosening or falling off during operation, ensuring a consistently stable and reliable limiting effect on the insertion rod 506; secondly, by sealing the limiting rod within the cavity 504, it protects the limiting rod from external impurities that could affect its normal operation, while also making the overall structure cleaner and more aesthetically pleasing. This design further enhances the structural stability and reliability of the entire tensioning mechanism, extending its service life.

[0077] Example 4:

[0078] To enable the tensioning mechanism to be applicable to fixing workpieces of various specifications and shapes, thereby improving processing efficiency and quality, for example, such as Figures 1 to 9 As shown, the present invention also includes:

[0079] The clamping sleeve 501 is installed in the positioning hole of the workpiece 6. An expansion unit is inserted into the internal groove of the clamping sleeve 501 to fix the workpiece 6. This method of fixing the workpiece 6 by installing the clamping sleeve 501 in the positioning hole of the workpiece 6 and then fixing it with the expansion unit into the internal groove of the clamping sleeve 501 provides high flexibility and adaptability. A suitable clamping sleeve 501 can be selected according to the size and shape of the positioning hole of different workpieces 6, allowing the tensioning mechanism to be applicable to fixing workpieces 6 of various specifications and shapes. At the same time, the cooperation between the expansion unit and the clamping sleeve 501 provides a large fixing force, effectively preventing the workpiece 6 from loosening or falling off during processing or use, ensuring the stability and reliability of the workpiece 6's fixation, and improving the efficiency and quality of the entire processing process.

[0080] Working principle:

[0081] Place the workpiece 6 to be fixed in a suitable position, ensuring that the positioning hole on the workpiece 6 corresponds to the tensioning mechanism of the remote operating tool.

[0082] The second motor 513 of the second drive unit starts, and the output of the second motor 513 drives the reducer 512 to operate. The reducer 512 drives the threaded rod to rotate through the connecting shaft 509. Since the threaded rod is fitted with a sleeve 502, and the insertion rod 506 is connected and fixed to the support frame 1 through a flange, the sleeve 502 moves along the axial direction of the threaded rod under the drive of the threaded rod. When the sleeve 502 moves, the cone 505 on it moves accordingly. The cone 505 contacts the expansion petal 511, and under the compression of the cone 505, the expansion petal 511 expands outward. Meanwhile, a limiting disc 503 is provided at the end of the sleeve 502, and a cavity 504 is provided at the end of the insertion rod 506. A limiting rod is inserted and installed in the cavity 504, and the limiting rod passes through the limiting disc 503. A fixing flange 508 is fitted on the threaded rod. The limiting rod in the cavity 504 is sealed in the cavity 504 by the fixing flange 508. This structure prevents the insertion rod 506 from rotating with the threaded rod, ensuring that the expansion petal 511 can expand stably outward. After the expansion petal 511 expands outward, it is inserted into the internal groove of the clamping sleeve 501 on the workpiece 6, further fixing the workpiece 6.

[0083] The first motor 207 of the first drive unit starts, and its output drives the crankshaft 208 to rotate. The pulley 202 on the crankshaft 208 slides in the groove 201 of the push plate 204, thereby driving the push plate 204 to slide along the support frame 1. The sliding of the push plate 204 drives the contour block 203 to move, so that the contour block 203 fits against the workpiece 6. Through the force between the contour block 203 and the workpiece 6, the workpiece 6 is initially positioned and limited to a certain extent.

[0084] The operator holds the T-shaped handle at the end of the verification manual pin 3 and moves the verification manual pin 3 along the slide rail 206 via the slider 205 mounted on the support frame 1, so that the verification manual pin 3 is inserted into the verification hole of the workpiece 6. If the verification manual pin 3 can be smoothly inserted into the verification hole, it means that the workpiece 6 is installed in place; if it cannot be inserted, it indicates that there is a problem with the installation of the workpiece 6 and it needs to be readjusted.

[0085] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0086] 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 tensioning mechanism for a remotely operated tool, characterized in that, include: A support frame (1) is provided with a rotating head (4) at the top of the support frame (1), and a cable rack (401) is provided on one side of the rotating head (4). Verification manual pin (3), the verification manual pin (3) is installed on the support frame (1) by a slider (205) and a slide rail (206), and the tail end of the verification manual pin (3) is connected to a T-shaped handle; Tightening mechanism (5), the tightening mechanism (5) is installed on the support frame (1), and there are two in total, the two tightening mechanisms (5) are symmetrically distributed on the support frame (1); Side modules (2) are installed on both sides of the support frame (1) and are symmetrically distributed on both sides of the tightening mechanism (5); The side module (2) includes a push plate (204), a contour block (203) and a first driving unit. The first driving unit drives the push plate (204) to slide along the support frame (1) so that the contour block (203) fits against the workpiece (6). The tightening mechanism (5) includes a second drive unit, a transmission unit and an expansion unit. The second drive unit drives the expansion unit to move through the transmission unit, so that the expansion unit is inserted into the clamping sleeve (501) of the workpiece (6). The workpiece (6) is limited by the clamping force of the contour block (203) and the expansion unit, and the workpiece (6) is verified to be installed in place by inserting the verification pin (3) into the verification hole of the workpiece (6). The second drive unit includes a second motor (513), and a reducer (512) is installed at the output end of the second motor (513). The transmission unit includes a connecting shaft (509) and a threaded rod (514). The output end of the reducer (512) is installed with the threaded rod (514) through the connecting shaft (509). The expansion unit includes a sleeve (502), a cone (505), a rod (506), and an expansion flap (511). The sleeve (502) is fitted onto the threaded rod (514). The cone (505) is fitted onto the sleeve (502). The rod (506) is fitted onto the outside of the sleeve (502). The rod (506) is connected and fixed to the support frame (1) via a flange. The rod (506) has a through hole (507). An expansion flap (511) is installed outside the sleeve (502). The expansion flap (511) has a protrusion (510) on it, and the protrusion (510) is located inside the through hole (507). The expansion flap (511) restricts the direction of movement through the protrusion (510) and the through hole (507). The end of the sleeve (502) is provided with a limiting plate (503), and the end of the insertion rod (506) is provided with a cavity (504). A limiting rod is inserted into the cavity (504) and the limiting rod passes through the limiting plate (503), thereby restricting the insertion rod (506) and preventing the insertion rod (506) from rotating with the threaded rod (514).

2. The tensioning mechanism for a remotely operated tool according to claim 1, characterized in that, The first drive unit includes a first motor (207), a crankshaft (208) is installed at the output end of the first motor (207), a pulley (202) is installed on the crankshaft (208), a groove (201) is provided on the push plate (204), and the pulley (202) is slidably installed in the groove (201).

3. The tensioning mechanism for a remotely operated tool according to claim 2, characterized in that, The push plate (204) is equipped with sliders (205) at both ends, and the support frame (1) is equipped with a slide rail (206). The push plate (204) slides on both sides of the support frame (1) through the cooperation of the sliders (205) and the slide rail (206).

4. The tensioning mechanism for a remotely operated tool according to claim 1, characterized in that, A fixed flange (508) is fitted on the threaded rod (514), and the limiting rod in the cavity (504) is sealed in the cavity (504) by the fixed flange (508).

5. The tensioning mechanism for a remotely operated tool according to claim 1, characterized in that, The clamping sleeve (501) is installed in the positioning hole of the workpiece (6) and is inserted into the internal groove of the clamping sleeve (501) by the expansion unit to fix the workpiece (6).

6. The tensioning mechanism for a remotely operated tool according to claim 1, characterized in that, According to the different workpiece (6) fixing requirements, the rotation parameters of the threaded rod (514) are adjusted to control the movement of the expansion unit.

7. The tensioning mechanism for a remotely operated tool according to claim 3, characterized in that, The first motor (207) of the first drive unit starts, and its output end drives the crankshaft (208) to rotate. The pulley (202) on the crankshaft (208) slides in the groove (201) of the push plate (204), thereby driving the push plate (204) to slide along the support frame (1). The push plate (204) slides and drives the contour block (203) to move, so that the contour block (203) fits against the workpiece (6). Through the force between the contour block (203) and the workpiece (6), the workpiece (6) is initially positioned and limited. The operator holds the T-shaped handle at the end of the verification manual pin (3) and moves the verification manual pin (3) along the slide rail (206) installed on the support frame (1) through the slider (205) and the slide rail (206), so that the verification manual pin (3) is inserted into the verification hole of the workpiece (6).