Clutch type nut driver

Abstract

The invention discloses a clutch type nut driver which comprises a support provided with a power device. The transmission part comprises a transmission rod, a driving part and a driven part, the driving part is connected with an output shaft of the power device, the support is provided with a guide hole, the transmission rod is arranged in the guide hole in a penetrating mode and guides the transmission rod to move in the axial direction of the guide hole, the driven part is fixed to the transmission rod, and the driven part and the driving part can be separated or connected; the driving piece and the driven piece are in friction transmission or are in meshing transmission through gear teeth; the clutch control piece is arranged on the transmission rod and controls the driven piece on the transmission rod to be separated from and combined with the driving piece; the nut driving piece is connected to the transmission rod, a driving part matched with the nut is arranged on the nut driving piece, the clutch control piece is easy to operate, the state of the driven piece and the state of the driving piece can be rapidly switched, the operation process is simplified, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of nut and screw assembly, in particular to a clutch type nut driver. Background Art

[0002] Screw rod mostly refers to the part with thread on fasteners such as screws and bolts. Bolts are a type of fastener composed of two parts: a head and a screw rod (a cylinder with external threads), and need to be used in conjunction with a nut; studs have threads on both ends, and the threaded part is called a screw rod. It is a fastener without a head and is often used in conjunction with nuts. The stud connection can be disassembled, so many workpieces that are frequently disassembled use studs; a through-thread screw rod is a screw rod with thread threads all over its body, so it is also called a full-thread screw rod and a full-thread screw rod, and is often used in conjunction with a nut; therefore, the assembly of screws and nuts together is extremely common in the fastener industry.

[0003] With the development of automation technology, some companies try to use motors to drive drive sleeves to complete the installation of nuts. This method uses switches or other control devices to turn the motor on and off: turn off the motor when placing the nut on the drive sleeve to ensure that the drive sleeve is stationary to ensure safety during the nut placement process; after the screw is aligned and inserted into the nut screw hole, turn on the motor power to drive the nut to rotate, thereby realizing the assembly of the nut and the screw. However, this frequent start and stop of the motor operation mode has brought many negative effects to the motor. Frequent power on and off will not only significantly shorten the service life of the motor and increase the equipment maintenance cost, but also cause a large amount of electricity waste. At present, it is undoubtedly an unsustainable operation mode in advocating energy conservation and emission reduction. In addition, there is a more dangerous operating mode, which is to let the motor run continuously. In this case, workers are very likely to have safety accidents due to the continuous rotation of the drive sleeve when placing the nut, which seriously threatens the personal safety of the operator.

[0004] It is in the above complex and severe industry background that in order to effectively solve a series of problems existing in the existing nut installation methods, such as large motor loss, high energy consumption and poor safety, we hope to bring new solutions to the nut installation field through innovative technical means. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a clutch nut driver in response to the above-mentioned existing technical status. In the clutch nut driver of the present invention, the power device starts to operate to provide a power source for the entire system, and the output shaft of the power device drives the active part to rotate. Since the transmission rod is inserted into the guide hole of the support, it can move axially along the guide hole, and the driven part is fixed on the transmission rod. When the clutch control part causes the driven part to engage with the active part, according to the friction transmission or gear meshing transmission mode between the two, the rotation of the active part can be transmitted to the driven part, thereby driving the transmission rod to rotate synchronously. The nut driving part connected to the transmission rod operates due to the rotation of the transmission rod, and its driving part adapted to the nut can drive the nut to rotate, thereby realizing the tightening operation of the nut and the screw. When the clutch control part takes effect and separates the driven part from the active part, that is, The active part continues to rotate under the drive of the power unit, while the driven part and its associated transmission rod and nut driver stop rotating, which is convenient for operations such as placing the nut. The clutch nut driver has significant advantages. In terms of equipment life, it avoids the current shock and mechanical wear caused by the traditional frequent start-stop of the motor, greatly prolongs the service life of key components such as the motor in the power unit, and reduces maintenance costs. In terms of energy saving, there is no need to frequently open and shut down the power unit, reducing the instantaneous power loss at startup. Long-term use can help save energy and reduce emissions, and cut corporate operating expenses. In terms of safety, when placing the nut, the clutch control separates the driven part from the active part, stops the nut driver, and eliminates the safety hazards caused by the continuous operation of the motor. During operation, the clutch control is easy to operate and can quickly switch the status of the driven and active parts, simplifying the operating process and improving work efficiency.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: A clutch nut driver, comprising: A support, wherein a power device is arranged on the support; The transmission component includes a transmission rod, a driving member and a driven member. The driving member is connected to the output shaft of the power device. The support is provided with a guide hole. The transmission rod is inserted into the guide hole to guide the transmission rod to move axially along the guide hole. The driven member is fixed on the transmission rod. The driven member and the driving member can be separated or engaged. The driving member and the driven member are frictionally driven or driven by gear meshing. A clutch control member, which is arranged on the transmission rod and controls the clutch of the driven member and the driving member on the transmission rod; The nut driving member is connected to the transmission rod and is provided with a driving portion adapted to the nut.

[0007] To optimize the above technical solutions, the measures taken also include: A guide sleeve is arranged at the guide hole, and the transmission rod is inserted into the guide sleeve. The transmission rod can move along the axial direction of the guide sleeve.

[0008] The above-mentioned clutch control component includes a return spring. A guide seat is arranged on the support at a position corresponding to the transmission rod. The return spring is arranged in the center hole of the guide seat. The transmission rod and the return spring are in contact with each other.

[0009] A ball is arranged between the return spring and the transmission rod.

[0010] The active member and the driven member mentioned above are conical members.

[0011] The guide sleeve is a bearing, the outer ring of the bearing is interference-connected in the guide hole, and the transmission rod is inserted into the inner ring of the bearing.

[0012] The transmission rod and the ball matching section are smoothly transitioned to form an arc surface.

[0013] The above-mentioned clutch control member comprises a return spring, which is sleeved on the transmission rod, one end of the return spring abuts against the surface of the guide sleeve, and the other end of the return spring abuts against the convex ring on the transmission rod.

[0014] The above-mentioned clutch control component includes an upper magnet and a lower magnet arranged opposite to each other with the same poles. The upper magnet and the lower magnet are sleeved on the transmission rod, the lower magnet is fixed on the guide sleeve of the support, and the upper magnet is fixed to the convex ring on the transmission rod.

[0015] The above-mentioned power device includes a motor, which is connected to a power supply system through a wire. The power supply system includes a power adapter and a switch. The switch is electrically connected to the motor through a wire, and a plug connected to the power adapter is connected to the switch.

[0016] A slip ring is sleeved on the transmission rod between the return spring and the convex ring.

[0017] A protective shell is arranged on the support.

[0018] A guide seat is arranged on the support at a position corresponding to the transmission rod, and the transmission rod is inserted into the center hole of the guide seat.

[0019] A clutch nut driver of the present invention comprises: a support, on which a power device is arranged; a transmission component, which comprises a transmission rod, an active component and a driven component, the active component is connected to the output shaft of the power device, the support is provided with a guide hole, the transmission rod is inserted into the guide hole, the transmission rod is guided to move axially along the guide hole, the driven component is fixed on the transmission rod, the driven component and the active component can be separated or engaged, and the active component and the driven component are frictionally transmitted or driven by gear meshing; a clutch control component, which is arranged on the transmission rod and controls the transmission rod The driven member of the nut is engaged with the active member; the nut driving member is connected to the transmission rod, and the nut driving member is provided with a driving part adapted to the nut. The power device starts to operate to provide a power source for the entire system. The output shaft of the power device drives the active member to rotate. Since the transmission rod is inserted into the guide hole of the support, it can move axially along the guide hole, and the driven member is fixed on the transmission rod. When the clutch control member causes the driven member to engage with the active member, according to the friction transmission or gear meshing transmission mode between the two, the rotation of the active member is transmitted to the driven member, thereby driving The transmission rod rotates synchronously, and the nut driver connected to the transmission rod operates due to the rotation of the transmission rod. The drive part of the nut adapted to the nut can drive the nut to rotate, thereby realizing the tightening operation of the nut and the screw. When the clutch control part plays a role and separates the driven part from the active part, even if the active part continues to rotate under the drive of the power device, the driven part and its associated transmission rod and nut driver will stop rotating, which is convenient for operations such as placing the nut. The clutch nut driver has significant advantages. In terms of equipment life, it avoids the current shock and mechanical wear caused by the traditional frequent start-stop of the motor, greatly prolongs the service life of key components such as the motor in the power device, and reduces maintenance costs. In terms of energy saving, there is no need to frequently start and shut down the power device, which reduces the instantaneous power loss at startup. Long-term use can help energy conservation and emission reduction, and reduce corporate operating expenses. In terms of safety, when placing the nut, the clutch control part separates the driven part from the active part, stops the nut driver, and eliminates the safety hazards caused by the continuous operation of the motor. During operation, the clutch control part is easy to operate, can quickly switch the status of the driven part and the active part, simplify the operation process, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural stereogram of Embodiment 1 of the present invention; Figure 2 is a front view of the first embodiment of the present invention; Figure 3 It is a schematic diagram of the structural decomposition of the first embodiment of the present invention; Figure 4 is a cross-sectional view of a clutch control member according to a first embodiment of the present invention; Figure 5 is a schematic diagram of a nut driving member according to a first embodiment of the present invention; Figure 6This is a schematic diagram of achieving clutching through a spring in Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of achieving clutching through magnets in Embodiment 2 of the present invention; Figure 8 It is a structural diagram of embodiment 3 of the present invention. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0022] Figures 1 to 8 It is a structural schematic diagram of the present invention.

[0023] The accompanying drawings are marked as follows: support 1, guide hole 11, guide sleeve 12, power device 2, motor 21, power adapter 22, switch 23, transmission component 3, transmission rod 31, active component 32, driven component 33, arc surface 34, convex ring 35, clutch control component 4, return spring 41, upper magnet 42, lower magnet 43, ball 44, nut driving component 5, driving part 51, guide seat 6, center hole 61.

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings: Example

[0025] like Figures 1 to 5 As shown, A clutch nut driver, comprising: The support 1 includes a vertical plate and two flat plates connected to the vertical plate. The support 1 is provided with a power device 2. The support 1 is provided with a connection hole connected to the power device. The power device 2 is fixed to the support 1 by screws. The power device 2 can be a motor or a reduction motor in the prior art. The transmission component 3 includes a transmission rod 31, a driving member 32 and a driven member 33. The driving member 32 is connected to the output shaft of the power device 2. The support 1 is provided with a guide hole 11. The transmission rod 31 is inserted into the guide hole 11 to guide the transmission rod 31 to move axially along the guide hole 11. The driven member 33 is fixed on the transmission rod 31. The driven member 33 and the driving member 32 can be separated or engaged. The driving member 32 and the driven member 33 are frictionally driven or driven by gear meshing. The driving member 32 and the driven member 33 are both provided with a connecting section. The connecting section is provided with a radial screw hole. The top screw is connected in the radial screw hole to tighten the output shaft or the transmission rod 31 of the power device 2. A clutch control member 4, which is disposed on the transmission rod 31 and controls the clutch of the driven member 33 and the active member 32 on the transmission rod 31; The nut driving member 5 is connected to the transmission rod 31. The nut driving member 5 is provided with a driving portion 51 adapted to the nut. The nut driving member 5 is connected to the transmission rod 31 through a coupling, or the nut driving member 5 is provided with a connecting hole adapted to the transmission rod 31. When the hexagonal nut is assembled, the driving portion 51 is made into a hexagonal hole adapted to the hexagonal nut; when the cylindrical round nut is assembled, the driving portion 51 is made into a driving friction pad to frictionally drive the nut; when the butterfly nut is assembled, the driving portion 51 is made into a driving groove adapted to the butterfly nut ear, such as Figure 5 .

[0026] Power input stage: The power device 2 starts to work, and its output shaft rotates. Since the active member 32 is connected to the output shaft of the power device 2, the rotation of the output shaft drives the active member 32 to rotate synchronously. The rotation of the active member 32 is the starting point of the power source of the entire driving process.

[0027] Clutch control stage: The clutch control member 4 plays a key role. When the nut needs to be driven, the operator operates the clutch control member 4 to push the transmission rod 31, thereby driving the follower 33 fixed on the transmission rod 31 to approach and engage with the active member 32. If the active member 32 and the follower 33 are friction transmission, after the two are in contact, power transmission is achieved by friction, and the follower 33 rotates with the active member 32; if it is a gear meshing transmission, the gear teeth of the follower 33 and the gear teeth of the active member 32 are engaged with each other, and the active member 32 drives the follower 33 to rotate. When the nut driving operation is completed, the clutch control member 4 is reversed to separate the follower 33 from the active member 32, and the power transmission is interrupted.

[0028] Nut driving stage: After the driven member 33 rotates, it drives the transmission rod 31 fixed thereto to rotate. The transmission rod 31 in turn drives the nut driving member 5 connected thereto to rotate. The driving part 51 of the nut driving member 5 is adapted to the nut. During the rotation process, the driving part 51 acts on the nut to achieve the tightening or loosening of the nut; The clutch nut driver has significant advantages. In terms of equipment life, it avoids the current shock and mechanical wear caused by the frequent start-stop of traditional motors, greatly prolongs the service life of key components such as motors in the power unit, and reduces maintenance costs. In terms of energy saving, there is no need to frequently start and shut down the power unit, reducing the instantaneous energy loss at startup. Long-term use can help save energy and reduce emissions, and cut corporate operating expenses. In terms of safety, when placing the nut, the clutch control separates the driven part from the active part, stops the nut driving part, and eliminates the safety hazards caused by the continuous operation of the motor. During operation, the clutch control is easy to operate and can quickly switch the status of the driven part and the active part, simplifying the operating process and improving work efficiency.

[0029] A guide sleeve 12 is provided at the guide hole 11, and the transmission rod 31 is inserted in the guide sleeve 12. The transmission rod 31 can move along the axial direction of the guide sleeve 12. The guide sleeve 12 is tightly arranged at the guide hole 11, and the transmission rod 31 is inserted therein. When the power device 2 is started, the active member 32 drives the driven member 33, thereby causing the transmission rod 31 to have a tendency to rotate and move axially. The guide sleeve 12 strictly constrains the movement trajectory of the transmission rod 31 by virtue of its inner diameter size and smooth inner surface that are precisely matched with the transmission rod 31, so that it can only move along the axial direction of the guide sleeve 12. The guide sleeve 12 is generally made of wear-resistant materials, such as copper alloys. In the long-term working process, even if the transmission rod 31 frequently moves back and forth in the guide sleeve 12, the guide sleeve 12 can effectively resist wear by virtue of its good wear resistance, thereby ensuring that the movement of the transmission rod 31 is always smooth, and extending the service life of the guide sleeve 12 and the transmission rod 31.

[0030] The clutch control member 4 includes a return spring 41. A guide seat 6 is provided on the support 1 at a position corresponding to the transmission rod 31. The guide seat 6 includes a cylindrical body and a flange. The flange is provided with a connecting through hole and is fixed to the support 1 by screws. The return spring 41 is arranged in the center hole 61 of the guide seat 6. The transmission rod 31 is in conflict with the return spring 41. The transmission rod 31 is provided with a cylindrical surface that matches the center hole 61 of the guide seat 6. The clutch engagement principle: when the nut needs to be driven, the operator pushes the transmission rod 31 through an external force (such as manual operation or other control mechanisms) to overcome the elastic force of the return spring 41 and move toward the active member 32. The driven member 33 on the transmission rod 31 then approaches the active member 32 and achieves engagement (whether it is friction transmission or gear meshing transmission). At this time, the power output by the power device 2 is transmitted to the driven member 33 through the active member 32, thereby driving the transmission rod 31 and the nut driving member 5 to rotate, completing the tightening or loosening operation of the nut; Principle of clutch separation: When the nut operation is completed, the operator stops applying external force to push the transmission rod 31. At this time, the return spring 41, which has been compressed and stored elastic potential energy, begins to release elastic force, pushing the transmission rod 31 to move away from the active member 32. The transmission rod 31 drives the driven member 33 to separate from the active member 32, the power transmission is interrupted, the nut driving member 5 stops rotating, and the central hole 61 of the guide seat 6 provides a stable guide for the movement of the transmission rod 31, ensuring that the transmission rod 31 can accurately return to the initial position under the action of the return spring 41, so as to facilitate the next clutch operation. Simple and reliable structure: The clutch control member 4 adopts a combination structure of a return spring 41 and a guide seat 6, with a simple design and a small number of parts. This simple structure reduces the probability of failure and improves the reliability of the entire clutch control mechanism. At the same time, the return spring 41, as a common elastic element, has the characteristics of low cost, easy acquisition and replacement, which reduces the maintenance cost and difficulty of the equipment; Convenient and labor-saving operation: The elastic force of the reset spring 41 is used to realize the automatic reset of the clutch. When the operator performs the clutch operation, he only needs to apply a small external force to push the transmission rod 31 to realize the clutch engagement, and no additional force is required to return the transmission rod 31 to the separation position. When the operation is completed, the reset spring 41 will automatically reset the transmission rod 31, which greatly reduces the labor intensity of the operator and improves the convenience and efficiency of the operation; The clutch state is stable: the center hole 61 of the guide seat 6 plays a good guiding and positioning role in the movement of the transmission rod 31, so that the transmission rod 31 can maintain a stable motion trajectory during the clutch process, which ensures the accuracy and stability of the follower 33 and the active member 32 during engagement and separation, avoids problems such as inadequate clutching or abnormal wear caused by shaking or offset of the transmission rod 31, and improves the accuracy and reliability of clutch control.

[0031] A ball 44 is arranged between the return spring 41 and the transmission rod 31. The ball 44 converts sliding friction into rolling friction, which significantly reduces the friction between the transmission rod 31 and the return spring 41. This makes it easier for operators to perform clutch operations, and can more easily and quickly achieve clutch engagement and separation, thereby improving work efficiency. In particular, in scenarios where frequent clutch operations are required, the advantages of this labor-saving feature are more obvious. Compared with sliding friction, rolling friction causes less wear on the contact surface. The presence of the ball 44 reduces the wear on the surfaces of the transmission rod 31 and the return spring 41, extending their service life. At the same time, it also reduces the risk of debris generated by wear causing pollution and damage to the inside of the equipment, thereby ensuring The reliability and stability of the clutch control component 4 and the entire clutch nut driver are improved. Due to the reduction of friction, the movement of the transmission rod 31 during the clutch process is smoother and more stable, and can move more accurately along the predetermined trajectory, which makes the engagement and separation of the follower 33 and the active component 32 more precise, improves the accuracy of the clutch control, and thus ensures the stability and accuracy of power transmission, which helps to improve the quality of nut installation or removal. The ball 44 usually has higher hardness and wear resistance, and can withstand greater pressure and frequent rolling. During long-term use, the ball 44 can maintain good performance and is not easily damaged, thereby enhancing the durability of the clutch control component 4 and reducing the maintenance frequency and cost of the equipment.

[0032] The active member 32 and the driven member 33 are conical members, which have an automatic centering function during the engagement process. When the driven member 33 approaches the active member 32, it can automatically align with the center due to the guidance of the conical surface, so that the axis coincidence of the two is higher. The structure of the conical member makes the active member 32 and the driven member 33 have a larger contact area when they are engaged. When the nut encounters greater resistance, causing the required torque to exceed a certain limit, relative sliding may occur between the conical surfaces of the active member 32 and the driven member 33. This sliding can play a role in overload protection, avoiding damage to the power device 2 or other components due to overload. Once the resistance is reduced, the conical member can restore normal power transmission.

[0033] The guide sleeve 12 is a bearing, the outer ring of the bearing is interference-connected in the guide hole 11, and the transmission rod 31 is inserted into the inner ring of the bearing. The rolling friction inside the bearing is much smaller than the sliding friction, which makes the transmission rod 31 encounter very little resistance during rotation and axial movement. The bearing has high manufacturing precision and can provide precise guidance for the transmission rod 31.

[0034] The transmission rod 31 and the ball 44 are smoothly matched to form an arc surface 34, which reduces friction and wear and improves the smoothness of operation.

[0035] The power device 2 includes a motor 21, which is connected to a power supply system through a wire. The power supply system includes a power adapter 22 and a switch 23. The switch 23 is electrically connected to the motor 21 through a wire. A plug connected to the power adapter 22 is connected to the switch 23. The power adapter 22 is connected to an external power source (such as a mains power supply) through a power plug. Its internal circuit converts the external high-voltage, high-frequency AC power into a low-voltage, stable DC power or AC power (depending on the type of the motor 21) suitable for the motor 21. This conversion process ensures that the motor 21 can operate under safe and stable voltage conditions to avoid damage to the motor due to excessively high or unstable voltage. Switch control: The switch 23 is connected in the circuit between the power adapter 22 and the motor 21. When the operator needs to start the motor 21, the switch 23 is closed, the circuit is turned on, and the electric energy converted by the power adapter 22 is transmitted to the motor 21 through the wire. After obtaining the electric energy, the motor 21 starts to run, driving the active part 32 to rotate, and then driving the entire clutch nut driver to work. When the operation is completed, the operator disconnects the switch 23, the circuit is cut off, and the motor 21 stops supplying power, thereby stopping operation.

[0036] A protective shell is provided on the support 1, and the protective shell is installed on the support 1, which encloses important components such as the power device 2, the transmission component 3, the clutch control component 4, etc., which are not shown in the figure.

[0037] Working principle: Power input and transmission: The motor 21 in the power device 2 starts to run after being powered on, and the output shaft of the motor 21 drives the active member 32 to rotate. Since the active member 32 and the driven member 33 are conical members, when power transmission is required, the clutch control member 4 pushes the transmission rod 31, so that the driven member 33 fixed on the transmission rod 31 is close to the active member 32 and engages. Due to the special structure of the conical member, the contact area between the two is large and has an automatic centering effect. Whether it is friction transmission (relying on the friction between the conical surfaces) or gear meshing transmission (if the conical member has gear teeth), the rotation of the active member 32 can be efficiently transmitted to the driven member 33, thereby driving the transmission rod 31 to rotate; Clutch control mechanism: The core of the clutch control component 4 lies in the cooperation between the return spring 41 and the transmission rod 31. When the clutch action needs to be realized, the operator applies external force to the transmission rod 31, and the transmission rod 31 overcomes the elastic force of the return spring 41 and moves toward the active component 32, so that the driven component 33 and the active component 32 are engaged, and the power is transmitted. After the operation is completed, the external force is withdrawn, and the return spring 41 releases the stored elastic potential energy, pushing the transmission rod 31 to move away from the active component 32, so that the driven component 33 is separated from the active component 32, and the power transmission is interrupted. In this process, the ball 44 between the return spring 41 and the transmission rod 31 and the arc surface 34 on the transmission rod 31 play an important role. The ball 44 converts sliding friction into rolling friction. The arc surface 34 further optimizes the rolling path of the ball 44, reduces friction resistance, makes the movement of the transmission rod 31 smoother and more labor-saving, and the clutch control is more sensitive and reliable. Guidance and stable support: The guide sleeve 12 adopts a bearing structure, and its outer ring is interference-connected in the guide hole 11. The transmission rod 31 is inserted into the inner ring of the bearing. When the transmission rod 31 rotates and moves axially, the rolling element inside the bearing rolls between the inner and outer rings, providing a low-friction rotation and movement environment for the transmission rod 31. This not only ensures the smoothness of the rotation of the transmission rod 31 and improves the power transmission efficiency, but also accurately guides the transmission rod 31 to move axially, ensuring the position accuracy of the driven member 33 and the active member 32 during the clutch process, and enhancing the stability of the equipment operation; Nut driving operation: The rotating transmission rod 31 drives the nut driving member 5 connected thereto to rotate synchronously. The driving part 51 on the nut driving member 5 is adapted to the nut. During the rotation process, the driving part 51 and the nut cooperate closely to transmit the rotation to the nut, thereby realizing the tightening or loosening operation of the nut. Since the transmission rod 31 moves stably under the precise guidance of the guide sleeve 12, the nut driving member 5 can accurately act on the nut, thereby ensuring the accuracy and quality of the nut installation or disassembly operation.

[0038] Directions: Hold the screw rod and accurately align one end of the screw rod with the screw hole of the nut. During the alignment process, keep your hand steady so that the screw rod and the nut are on the same axis. After confirming that the screw rod and the nut are correctly aligned, slowly and steadily press the screw rod downward. With the pressing action, the screw rod pushes the transmission rod 31 to move downward. During this process, the ball 44 between the transmission rod 31 and the return spring 41 rolls on the arc surface 34 of the transmission rod 31, reducing the friction force when the transmission rod 31 moves, ensuring its smooth movement. The transmission rod 31 moves downward so that the driven member 33 fixed thereon gradually approaches the active member 32 until the two are in contact and engaged. Since the active member 32 and the driven member 33 are both conical members, they have an automatic centering effect. As a result, the two can quickly establish a stable power transmission connection. At the same time, the return spring 41 is compressed to store elastic potential energy. After the follower 33 is engaged with the active member 32, the power output by the power device 2 is transmitted to the follower 33 through the active member 32, thereby driving the transmission rod 31 and the nut driving member 5 to start rotating. At this time, the nut starts to be tightened or loosened under the drive of the driving part 51. After the nut reaches the required tightening or loosening degree, the screw is stopped from being pressed down, and the return spring 41 releases the elastic potential energy stored before, pushing the transmission rod 31 to move upward, so that the follower 33 is separated from the active member 32, the power transmission is interrupted, the nut driving member 5 stops rotating, and the screw and the nut that has been operated are removed by hand. Example

[0039] like Figure 6 and Figure 7 As shown, the structure of the clutch nut driver of this embodiment is basically the same as that of the clutch nut driver in the first embodiment. In this embodiment, Figure 6 As shown, the clutch control member 4 includes a return spring 41, which is sleeved on the transmission rod 31, one end of the return spring 41 is against the surface of the guide sleeve 12, and the other end of the return spring 41 is against the convex ring 35 on the transmission rod 31. When the transmission rod 31 moves, the convex ring 35 compresses the return spring 41, so that the return spring 41 stores elastic potential energy. At the same time, the follower 33 fixed on the transmission rod 31 approaches the active member 32 as the transmission rod 31, and finally the two are engaged. At this time, the rotation of the active member 32 is transmitted to the follower 33 through transmission, thereby driving the transmission rod 31 to rotate. Separation process: when the operation is completed and the external force applied to the transmission rod 31 is cancelled, the return spring 41 releases the elastic potential energy stored before, and the return spring 41 pushes the convex ring 35 to make the transmission rod 31 move in the opposite direction along the axial direction, thereby driving the follower 33 to separate from the active member 32, cutting off the power transmission, and the nut driving member 5 stops rotating.

[0040] A slip ring is sleeved on the transmission rod 31 between the return spring 41 and the convex ring 35 . The slip ring can slide freely on the transmission rod 31 , thereby reducing the friction resistance between the transmission rod 31 and the return spring 41 .

[0041] A guide seat 6 is provided on the support 1 at a position corresponding to the transmission rod 31, and the transmission rod 31 is inserted into the center hole of the guide seat 6. The center hole 61 of the guide seat 6 plays a good guiding and positioning role in the movement of the transmission rod 31, so that the transmission rod 31 can maintain a stable motion trajectory during the clutch process, which ensures the accuracy and stability of the follower 33 and the active member 32 during engagement and separation, avoids problems such as inadequate clutching or abnormal wear caused by shaking or offset of the transmission rod 31, and improves the accuracy and reliability of clutch control.

[0042] Figure 7 As shown, the clutch control member 4 includes an upper magnet 42 and a lower magnet 43 which are arranged with the same poles facing each other. The upper magnet 42 and the lower magnet 43 are sleeved on the transmission rod 31, and the lower magnet 43 is fixed to the guide sleeve 12 of the support 1. The upper magnet 42 is fixed to the convex ring 35 on the transmission rod 31. The upper and lower magnets with the same poles generate a repulsive force relative to each other, and the movement of the transmission rod is controlled by the interaction of the magnetic fields without direct contact of mechanical parts. This non-contact control method reduces mechanical wear, reduces the probability of component damage due to long-term use, improves the reliability and stability of the clutch control, and also reduces maintenance costs. Example

[0043] like Figure 8 As shown, the structure of a clutch nut driver of this embodiment is basically the same as that of a clutch nut driver in the first embodiment. In this embodiment, the active member 32 and the driven member 33 are flat washer structures, and the active member 32 and the driven member 33 are transmitted through corresponding surfaces. The structure is simple: the flat washer structure is relatively simple, without complex shape and structural design, easy to manufacture and process, and can reduce production costs. At the same time, this simple structure is also easy to install and maintain, reducing installation errors and maintenance difficulties caused by complex parts. Smooth transmission: The driving part and the driven part are transmitted through the contact of the corresponding surfaces. During the transmission process, the contact area is large and relatively stable, which can make the power transmission more uniform and stable, reduce vibration and impact, and thus improve the stability and reliability of the entire transmission system; Strong torque transmission capability: The corresponding surfaces of the flat pad structure can generate greater friction, thereby effectively transmitting torque. As long as the design is reasonable, this structure can withstand a large load and meet the torque transmission requirements under different working conditions; Good adaptability: The flat pad structure has relatively low requirements on installation accuracy and working environment. Even in a certain degree of installation error or in harsh environments such as a small amount of dust and oil, it can still maintain good transmission performance. In addition, it can also easily adjust the material, size and surface treatment of the flat pad according to different application requirements to adapt to different working conditions; Good maintainability: Due to the simple structure, it is easy to disassemble and check the wear of the active and driven parts when a fault occurs. If the parts are found to be worn, they can be easily replaced, thereby reducing maintenance costs and downtime and improving equipment utilization.

[0044] The best embodiment of the present invention has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of the present invention.

Claims

1. A clutch nut driver, characterized in that: The invention comprises a support (1), a transmission component (3), a clutch control component (4) and a nut driving component (5); the support (1) is provided with a power device (2); the transmission component (3) comprises a transmission rod (31), an active component (32) and a driven component (33); the active component (32) is connected to an output shaft of the power device (2); the support (1) is provided with a guide hole (11); the transmission rod (31) is inserted into the guide hole (11), and the transmission rod (31) is guided along the guide hole (11). The driven member (33) is fixed on the transmission rod (31), the driving member (32) and the driven member (33) are frictionally driven or driven by gear meshing, the clutch control member (4) is arranged on the transmission rod (31), the clutch control member (4) controls the separation or engagement of the driven member (33) and the driving member (32), the nut driving member (5) is connected to the transmission rod (31), and the nut driving member (5) is provided with a driving portion (51) adapted to the nut.

2. A clutch nut driver according to claim 1, characterized in that: A guide sleeve (12) is provided at the guide hole (11), the transmission rod (31) is inserted into the guide sleeve (12), and the transmission rod (31) can move along the axial direction of the guide sleeve (12).

3. A clutch nut driver according to claim 2, characterized in that: The clutch control member (4) comprises a return spring (41); a guide seat (6) is arranged on the support (1) at a position corresponding to the transmission rod (31); the return spring (41) is arranged in a central hole (61) of the guide seat (6); and the transmission rod (31) and the return spring (41) are in contact with each other.

4. A clutch nut driver according to claim 3, characterized in that: A ball (44) is arranged between the return spring (41) and the transmission rod (31).

5. A clutch nut driver according to claim 4, characterized in that: The active member (32) and the driven member (33) are conical members.

6. A clutch nut driver according to claim 5, characterized in that: The guide sleeve (12) is a bearing, the outer ring of the bearing is interference-connected in the guide hole (11), and the transmission rod (31) is inserted into the inner ring of the bearing.

7. A clutch nut driver according to claim 6, characterized in that: The mating ends of the transmission rod (31) and the ball (44) are smoothly transitioned to form an arcuate surface (34).

8. The clutch nut driver according to claim 2, characterized in that: The clutch control member (4) comprises a return spring (41), which is sleeved on the transmission rod (31), one end of the return spring (41) abuts against the surface of the guide sleeve (12), and the other end of the return spring (41) abuts against the convex ring (35) on the transmission rod (31).

9. The clutch nut driver according to claim 2, characterized in that: The clutch control member (4) comprises an upper magnet (42) and a lower magnet (43) which are arranged opposite to each other with the same poles. The upper magnet (42) and the lower magnet (43) are sleeved on the transmission rod (31). The lower magnet (43) is fixed on the guide sleeve (12) of the support (1). The upper magnet (42) is fixed to the convex ring (35) on the transmission rod (31).

10. A clutch nut driver according to any one of claims 7 to 9, characterized in that: The power device (2) comprises a motor (21), the motor (21) is connected to a power supply system via a wire, the power supply system comprises a power adapter (22) and a switch (23), and the switch (23) is electrically connected to the motor (21) via a wire.

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