Electric tightening equipment with counter-acting force protection device

Abstract

The utility model discloses electric tightening equipment with a counter-acting force protection device, and relates to the technical field of electric tightening equipment, the electric tightening equipment comprises an electric tightening equipment body, a socket, an electric wire plug and a hydraulic clamp, the lower end of the electric tightening equipment body is provided with a rotating sleeve, the lower end of the rotating sleeve is provided with a screw sleeve, and the screw sleeve is provided with a counter-acting force protection device. And a composite laminated component is arranged in the hydraulic clamp. When the electric tightening equipment works, the fixing shaft and the rotating sleeve are driven to rotate, the screw sleeve is driven to rotate to tighten the bolt, after the bolt is tightened, the rotating sleeve rotates, meanwhile, an ejecting block extrudes a first ejecting spring and a small telescopic shaft in the screw sleeve, and therefore the ejecting block stretches out and draws back in the screw sleeve, and the bolt is tightened. And due to the influence of the counter-acting force, the rotating sleeve rotates, but the screw sleeve stops rotating, so that the problem that the electric tightening equipment is not provided with a counter-acting force protection device is solved, and the effect of protecting the electric tightening equipment by the counter-acting force is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electric tightening equipment technology, specifically to an electric tightening device with a reaction force protection device. Background Technology

[0002] Reaction force is the opposite of "action force." In mechanics, forces always appear in pairs. One force (called the action force) has a reaction force that is equal in magnitude and opposite in direction. Electric tightening equipment is a type of electric wrench tool. In production and assembly processes, the application of servo tightening machines can reduce the labor intensity of employees. During tightening operations, the tightening torque and action force cannot be precisely controlled, leading to insufficient clamping force. This can cause bolts to loosen due to vibration or cyclic loads. Excessive clamping force can easily lead to breakage and deformation of connecting components. The reaction force protects the electric tightening equipment. Currently, my country's aerospace industry is in a stage of rapid development. Due to the special working environment and functional requirements, high-end aerospace equipment has higher technical requirements for the structural strength and connection performance of fasteners, resulting in a significant demand for bolt fasteners. Threaded fasteners mainly play a role in transmitting force or motion in various mechanical structures; however, loosening has always been a key problem facing bolts. Bolts undergo various harsh conditions in practical applications, including impact, vibration, and exposure to harsh environments, significantly increasing the risk of loosening. This is especially true when the connected structure is a composite material. Because composite materials differ significantly from metallic materials in mechanical properties and fatigue resistance, they exhibit changes in mechanical characteristics such as relaxation and hysteresis over time. The existing technology has the following problems:

[0003] The lack of a reaction force protection device in current electric tightening equipment leads to potential damage during operation. Furthermore, the power cord plugs in these devices tend to loosen after prolonged use, affecting the tightening equipment and making replacement of the plugs and wires inconvenient. Utility Model Content

[0004] This invention provides an electric tightening device with a reaction force protection device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An electric tightening device with a reaction force protection device includes an electric tightening device body, a socket, a power plug and a hydraulic clamp. The lower end of the electric tightening device body is provided with a rotating sleeve, the lower end of the rotating sleeve is provided with a screw sleeve, and the interior of the hydraulic clamp is provided with a composite material laminated component.

[0007] The rotating sleeve is fixedly connected to a fixed shaft inside, and the fixed shaft is movably connected to the inside of the screw sleeve. The lower end of the fixed shaft extends into the inside of the screw sleeve. The top of the screw sleeve is provided with a slot, and a limit block is attached inside the slot. One side of the limit block is fixedly connected to the surface of the fixed shaft.

[0008] A further improvement of this utility model is that: the surface of the screw sleeve is movably connected to the interior of the rotating sleeve; a clamping spring is fixedly connected to the surface of the fixed shaft; a clamping block is fixedly connected to one end of the clamping spring; one end of the clamping block extends to the outside of the screw sleeve; and one end of the clamping block overlaps with the interior of the rotating sleeve.

[0009] The above technical solution, through the mutual cooperation of the screw sleeve, rotating sleeve, tightening spring, and tightening block, provides a protective reaction when the electric tightening equipment is in operation.

[0010] A further improvement of this utility model is that: a small telescopic shaft is fixedly connected to the surface of the fixed shaft, one end of the small telescopic shaft is fixedly connected to one side of the clamping block, and the small telescopic shaft is inside the clamping spring.

[0011] The small telescopic shaft in the above technical solution prevents the top spring from deforming and bending when compressed.

[0012] A further improvement of this utility model is that: a fixing rod is fixedly connected inside the socket, a second tightening spring is fixedly connected to one side of the fixing rod, a protrusion is fixedly connected to one end of the second tightening spring, a small telescopic plate is fixedly connected to one side of the protrusion, and one end of the small telescopic plate is fixedly connected to the surface of the fixing rod.

[0013] The above technical solution achieves the effect of clamping the wire plug through the cooperation of the fixing rod, the second tightening spring, the small telescopic plate, and the protrusion.

[0014] A further improvement of this utility model is that: one end of the protrusion is engaged with the surface of the wire plug, a top rod is attached to the upper surface of the protrusion, a spring is fixedly connected to the surface of the top rod, one end of the spring is fixedly connected to the top of the socket cavity, the upper end of the top rod extends to the outside of the socket, a locking mechanism is provided on the surface of the top rod, and the lower surface of the locking mechanism is fixedly connected to the upper surface of the socket.

[0015] The above technical solution facilitates easy disassembly and replacement through the cooperation of the push rod, spring, and locking mechanism.

[0016] A further improvement of this utility model is that: the top rod has an insertion hole inside, a locking pin is inserted inside the locking mechanism, one end of the locking pin extends to the outside of the insertion hole, a magnetic block is provided on the surface of the locking mechanism, and the lower surface of the magnetic block is fixedly connected to the upper surface of the locking pin.

[0017] The above technical solution achieves the effect of fixing the top rod through the cooperation of the insertion hole, the pin, and the magnetic block.

[0018] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0019] 1. This utility model provides an electric tightening device with a reaction force protection device. It adopts the cooperation of a fixed shaft, a limiting block, a first tightening spring, a small telescopic shaft, a tightening block, and a slot. When the electric tightening device is working, it drives the fixed shaft and the rotating sleeve to rotate, and drives the screw sleeve to rotate to tighten the bolt. When the bolt is tightened, while the rotating sleeve is rotating, the tightening block will squeeze the first tightening spring and the small telescopic shaft in the screw sleeve, so that the tightening block extends and retracts inside the screw sleeve. Due to the effect of the reaction force, the rotating sleeve rotates, while the screw sleeve stops rotating. This solves the problem of the lack of a reaction force protection device in the electric tightening device and achieves the effect of protecting the electric tightening device from the reaction force.

[0020] 2. This utility model provides an electric tightening device with a reaction force protection device. It adopts the cooperation of a fixed rod, a second tightening spring, a protrusion, a small telescopic plate, a top rod, and a spring. The second tightening spring causes the protrusion to move, thereby clamping the wire plug. When the wire plug needs to be unplugged, pressing the top rod stretches the spring and squeezes the protrusion, the second tightening spring, and the small telescopic plate. Then, the locking mechanism locks the top rod, and the wire plug can be removed. This solves the problem of loose wires and inconvenience in replacing them in electric tightening devices, and achieves the effect of locking the wire plug for easy replacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the rotating sleeve and screw sleeve of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the socket and wire plug of this utility model;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the locking mechanism and the push rod of this utility model.

[0025] In the diagram: 1. Electric tightening device body; 2. Rotating sleeve; 21. Fixed shaft; 22. Limiting block; 23. Tensioning spring one; 24. Small telescopic shaft; 25. Tensioning block; 3. Screw sleeve; 31. Slot; 4. Hydraulic clamp; 5. Composite material laminated component; 6. Socket; 61. Fixed rod; 62. Tensioning spring two; 63. Protrusion; 64. Small telescopic plate; 65. Top rod; 651. Insertion hole; 66. Spring; 67. Locking mechanism; 671. Pin; 672. Magnetic block; 7. Wire plug. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] Example 1

[0028] like Figure 1-4 As shown, this utility model provides an electric tightening device with a reaction force protection device. The device includes a main body 1, a socket 6, a power plug 7, and a hydraulic clamp 4. A rotating sleeve 2 is located at the lower end of the main body 1, and a screw sleeve 3 is located at the lower end of the rotating sleeve 2. A composite material laminated component 5 is located inside the hydraulic clamp 4. A fixed shaft 21 is fixedly connected inside the rotating sleeve 2, and the fixed shaft 21 is movably connected to the inside of the screw sleeve 3. The lower end of the fixed shaft 21 extends into the inside of the screw sleeve 3. A slot 31 is formed at the top of the screw sleeve 3. A limiting block 22 is connected to the fixed shaft 21. One side of the limiting block 22 is fixedly connected to the surface of the fixed shaft 21. The surface of the screw sleeve 3 is movably connected to the interior of the rotating sleeve 2. A tightening spring 23 is fixedly connected to the surface of the fixed shaft 21. A tightening block 25 is fixedly connected to one end of the tightening spring 23. One end of the tightening block 25 extends to the outside of the screw sleeve 3. One end of the tightening block 25 overlaps with the interior of the rotating sleeve 2. A small telescopic shaft 24 is fixedly connected to the surface of the fixed shaft 21. One end of the small telescopic shaft 24 is fixedly connected to one side of the tightening block 25. The small telescopic shaft 24 is inside the tightening spring 23.

[0029] In this embodiment, when the electric tightening device is working, it drives the fixed shaft 21 and the rotating sleeve 2 to rotate, which in turn drives the screw sleeve 3 to rotate, thereby tightening the bolt. When it rotates to a certain position, the bolt is tightened. At the same time, the screw sleeve 3 has a certain rotational force after tightening the bolt. During the rotation, the clamping block 25, clamping spring 23, and small telescopic shaft 24 inside the screw sleeve 3 are squeezed. The function of the small telescopic shaft 24 is to prevent the clamping spring 23 from deforming and bending during the squeezing, so that the clamping block 25 retracts inside the screw sleeve 3, and one end of the clamping block 25 is in the screw sleeve 3. The screw sleeve 2 rotates within the inner wall of the fixed shaft 21. At this time, the top clamping block 25, the top clamping spring 23, and the small telescopic shaft 24 on the left side of the fixed shaft 21 are in front, while the structure on the right side is behind the fixed shaft 21. Due to the effect of the reaction force, the rotating sleeve 2 continues to rotate repeatedly, while the screw sleeve 3 stops rotating, protecting the main body 1 of the electric tightening device. The rotation is stopped by turning off the power button. By rotating the screw sleeve 3 clockwise, when it reaches a certain position, the top clamping spring 23 causes the top clamping block 25 to extend from inside the screw sleeve 3 and contact the rotating sleeve 2, and then return to its original position.

[0030] Example 2

[0031] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a fixing rod 61 is fixedly connected inside the socket 6, a second tightening spring 62 is fixedly connected to one side of the fixing rod 61, a protrusion 63 is fixedly connected to one end of the second tightening spring 62, a small telescopic plate 64 is fixedly connected to one side of the protrusion 63, one end of the small telescopic plate 64 is fixedly connected to the surface of the fixing rod 61, one end of the protrusion 63 is engaged with the surface of the wire plug 7, a top rod 65 overlaps the upper surface of the protrusion 63, a spring 66 is fixedly connected to the surface of the top rod 65, one end of the spring 66 is fixedly connected to the top of the inner cavity of the socket 6, the upper end of the top rod 65 extends to the outside of the socket 6, a locking mechanism 67 is provided on the surface of the top rod 65, and the lower surface of the locking mechanism 67 is fixedly connected to the upper surface of the socket 6.

[0032] In this embodiment, when the power cord plug 7 needs to be installed, the power cord plug 7 is inserted into the socket 6 and connected to the electric tightening device body 1 for easy power supply. After the locking mechanism 67 separates from the top rod 65, the protrusion 63 moves closer to the power cord plug 7 due to the action of the two tightening springs 62 on both sides. Due to the elasticity of the two tightening springs 62, the protrusion 63 clamps the power cord plug 7 to prevent loosening. When the power cord plug 7 needs to be pulled out, the spring 66 is stretched by pressing the top rod 65 and squeezes the protrusion 63, the two tightening springs 62 and the small telescopic plate 64. Then the locking mechanism 67 locks the top rod 65, and the power cord plug 7 is taken out. When the locking mechanism 67 separates from the top rod 65, the top rod 65 returns to its original position due to the action of the spring 66.

[0033] Example 3

[0034] like Figure 1-4 As shown, based on Embodiment 2, this utility model provides a technical solution: preferably, the top rod 65 has an insertion hole 651 inside, the locking mechanism 67 has a locking pin 671 inserted inside, one end of the locking pin 671 extends to the outside of the insertion hole 651, the surface of the locking mechanism 67 is provided with a magnetic block 672, and the lower surface of the magnetic block 672 is fixedly connected to the upper surface of the locking pin 671.

[0035] In this embodiment, when it is necessary to lock the top rod 65, the locking pin 671 is inserted into the locking mechanism 67, and the locking mechanism 67 is attracted by the magnetic block 672 through the insertion hole 651 to prevent the locking pin from shaking.

[0036] The working principle of this electric tightening device with a reaction force protection device will be explained in detail below.

[0037] like Figure 1-4 As shown, the power cord plug 7 is inserted into the socket 6 and connected to the electric tightening device body 1 for easy power supply. The electric tightening device body 1 is activated, causing the rotating sleeve 2 and the screw sleeve 3 to cooperate in clamping the composite laminated component 5 in the hydraulic clamp 4 and tightening the bolts. When the bolts are tightened, the rotating sleeve 2 rotates while the top block 25 is pressed against the top spring 23 and the small telescopic shaft 24 in the screw sleeve 3, so that the top block 25 extends and retracts inside the screw sleeve 3. Due to the reaction force, the rotating sleeve 2 rotates while the screw sleeve 3 stops rotating. When it is necessary to lock the power cord plug 7, the top springs 62 on both sides cause the protrusion 63 to move closer to the power cord plug 7 and clamp the power cord plug 7. When it is necessary to remove the power cord plug 7, the spring 66 is stretched by pressing the top rod 65 and squeezes the protrusion 63, the top spring 62 and the small telescopic plate 64. Then the locking mechanism 67 locks the top rod 65, and then the power cord plug 7 can be removed.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An electric tightening device with a reaction force protection device, characterized in that: The device includes an electric tightening device body (1), a socket (6), a power cord plug (7), and a hydraulic clamp (4). The lower end of the electric tightening device body (1) is provided with a rotating sleeve (2), and the lower end of the rotating sleeve (2) is provided with a screw sleeve (3). The interior of the hydraulic clamp (4) is provided with a composite material laminated component (5). The rotating sleeve (2) is fixedly connected to a fixed shaft (21) inside. The fixed shaft (21) is movably connected to the inside of the screw sleeve (3). The lower end of the fixed shaft (21) extends into the inside of the screw sleeve (3). The top of the screw sleeve (3) is provided with a slot (31). A limiting block (22) overlaps inside the slot (31). One side of the limiting block (22) is fixedly connected to the surface of the fixed shaft (21).

2. The electric tightening device with a reaction force protection device according to claim 1, characterized in that: The surface of the screw sleeve (3) is movably connected to the interior of the rotating sleeve (2). A clamping spring (23) is fixedly connected to the surface of the fixed shaft (21). A clamping block (25) is fixedly connected to one end of the clamping spring (23). One end of the clamping block (25) extends to the outside of the screw sleeve (3). One end of the clamping block (25) overlaps with the interior of the rotating sleeve (2).

3. The electric tightening device with a reaction force protection device according to claim 1, characterized in that: A small telescopic shaft (24) is fixedly connected to the surface of the fixed shaft (21). One end of the small telescopic shaft (24) is fixedly connected to one side of the clamping block (25). The small telescopic shaft (24) is inside the clamping spring (23).

4. An electric tightening device with a reaction force protection device according to claim 1, characterized in that: The socket (6) is internally fixedly connected to a fixing rod (61), and a second tightening spring (62) is fixedly connected to one side of the fixing rod (61). A protrusion (63) is fixedly connected to one end of the second tightening spring (62), and a small telescopic plate (64) is fixedly connected to one side of the protrusion (63). One end of the small telescopic plate (64) is fixedly connected to the surface of the fixing rod (61).

5. An electric tightening device with a reaction force protection device according to claim 4, characterized in that: One end of the protrusion (63) engages with the surface of the electrical plug (7). A top rod (65) overlaps the upper surface of the protrusion (63). A spring (66) is fixedly connected to the surface of the top rod (65). One end of the spring (66) is fixedly connected to the top of the inner cavity of the socket (6). The upper end of the top rod (65) extends to the outside of the socket (6). A locking mechanism (67) is provided on the surface of the top rod (65). The lower surface of the locking mechanism (67) is fixedly connected to the upper surface of the socket (6).

6. An electric tightening device with a reaction force protection device according to claim 5, characterized in that: The top rod (65) has an insertion hole (651) inside, and a locking pin (671) is inserted into the locking mechanism (67). One end of the locking pin (671) extends to the outside of the insertion hole (651). A magnetic block (672) is provided on the surface of the locking mechanism (67), and the lower surface of the magnetic block (672) is fixedly connected to the upper surface of the locking pin (671).

Images