Simple and convenient nut screwing machine

Abstract

The utility model discloses a simple and convenient type nut screwing machine which comprises a driving wheel and a power device, the driving wheel is arranged on an output shaft of the power device, a driving portion is arranged on the peripheral face of the driving wheel, the driving portion of the driving wheel is in friction transmission with the peripheral face or the end face edge of a nut, and the nut screwing machine is small in size, extremely low in manufacturing cost and convenient to carry. The nut can be spherical, hexagonal, cylindrical, conical, polygonal and the like, and has a certain contact part with the driving wheel, so that the friction force between the driving wheel and the nut is enough to drive the nut to rotate, the nut can be used, the nut can be quickly driven to rotate so as to rotate along the screw rod, and the nut can be driven to rotate along the screw rod. Friction transmission is adopted, so that when the nut and the screw are broken or not matched, the nut cannot rotate along the screw, the contact part of the nut and the driving part of the driving wheel slips, and the accident that hands are injured due to rotation of the screw is avoided.

Description

Technical Field

[0001] This utility model relates to the field of screw and nut assembly technology, specifically, to a simple nut tightening machine. Background Technology

[0002] Screws generally refer to the threaded part of fasteners such as screws and bolts. Bolts are a type of fastener consisting of a head and a threaded shank (a cylinder with external threads), and they need to be used with a nut. Studs are fasteners with threads on both ends, and the threaded part is called the threaded shank. They are headless fasteners and are often used with nuts. Stud connections are detachable, so they are often used for workpieces that are frequently disassembled. Fully threaded screws are screws with threads all over their body, so they are also called fully threaded screws or fully threaded rods, and they are often used with nuts. Therefore, the combination of screws and nuts is extremely common in the fastener industry.

[0003] A nut, also known as a bolt or screw thread, is a fastening component that is screwed onto a bolt. Bolts and bolts are typically sold as a set, requiring assembly. The user then needs to unscrew the nut before use. This combination ensures compatibility between the nut and bolt, preventing defective products. Currently, nut and bolt assembly is primarily done manually. One hand holds the bolt or bolt, while the other hand places the nut on the bolt and continuously rotates it to tighten it to the desired position. Disassembly requires unscrewing the nut. When assembling a large number of nuts and bolts, the constant hand rotation increases labor intensity, causing finger pain, and is inefficient, hindering usability. Although tools like electric socket wrenches and other nut-tightening devices are available, these are not always compatible with bolts and bolts. The specifications of sockets and wrenches are all one-to-one. Most sockets and wrenches of a certain model can only tighten the corresponding nuts. It is rare to find a socket or wrench of a certain model that can tighten nuts of multiple specifications. At the same time, the tightening of nuts with sockets and wrenches is mostly a rigid transmission. When assembling nuts and screws, if the nuts and screws have damaged threads or are incompatible, this situation is more common with ordinary nuts and screws. For example, if the screw thread is damaged by an impact, the nut will not be able to be tightened when it reaches the damaged point. Or, if two nuts of similar specifications are mixed together, the nut that does not match the screw can be attached to the screw but cannot be screwed on further. In the above situations, the socket and wrench continue to rotate with the nut. At this time, because the nut is stuck, it can only rotate with the screw. Since the socket is not easy to disengage from the nut, the screw thread can cut the hand. Therefore, there is a safety hazard in operation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a simple nut tightening machine in light of the above-mentioned existing technology. This nut tightening machine is small in size, extremely inexpensive, and easy to carry. It can drive various types of nuts, such as spherical, hexagonal, cylindrical, conical, polygonal, etc. The nut and the drive wheel have a certain contact area, and the friction between the drive wheel and the nut is sufficient to drive the nut to rotate. All types of nuts can be used. The nut is quickly driven to rotate along the screw, which quickly completes the assembly or disassembly. At the same time, the nut can be quickly separated from the drive wheel, improving the speed and efficiency of assembly or disassembly. It adopts friction transmission. When there is a broken thread or mismatch between the nut and the screw, the nut will not rotate along the screw, and the contact area between the nut and the drive wheel will slip. The drive wheel will not drive the nut to rotate, so there will be no accident of injury from screw rotation.

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

[0006] A simple nut tightening machine includes: a drive wheel and a power unit. The drive wheel is mounted on the output shaft of the power unit. The outer circumferential surface of the drive wheel is the driving part. The driving part of the drive wheel is subjected to frictional transmission with the outer circumferential surface or end face edge of the nut, which can drive nuts of various types.

[0007] To optimize the above technical solution, the following measures were also taken:

[0008] The aforementioned power unit includes an electric motor, which is electrically connected to the power supply system via wires.

[0009] A fixing sleeve is provided between the aforementioned drive wheel and the output shaft of the motor. The fixing sleeve is fixed on the output shaft of the motor, and the drive wheel is fixed on the fixing sleeve.

[0010] The aforementioned drive wheel is interference-fitted with the fixed sleeve.

[0011] The outer end of the aforementioned fixing sleeve is provided with an anti-detachment component.

[0012] The aforementioned anti-detachment component includes a baffle plate and a fixing screw. The baffle plate is fitted onto the fixing screw, which is connected to the central screw hole of the fixing sleeve. The baffle plate abuts against the end face of the drive wheel.

[0013] The aforementioned fixed sleeve has a stop ring at its rear end, which abuts against the rear end face of the drive wheel.

[0014] The aforementioned power supply system includes a power adapter and a switch, and the power adapter, switch, and motor are electrically connected.

[0015] The aforementioned motor is fixed to the bracket by connecting screws; the bracket includes a vertical plate and a horizontal plate that is bent into shape with the vertical plate, and the horizontal plate is provided with fixing holes.

[0016] The motor is fixed inside the protective housing, the motor's output shaft extends out of the protective housing, a switch is fixed on the protective housing, and a female plug that is compatible with the male plug of the power adapter is provided on the protective housing.

[0017] The bottom of the aforementioned protective casing is equipped with an adsorption magnet.

[0018] This utility model discloses a simple nut tightening machine, comprising: a drive wheel and a power unit. The drive wheel is mounted on the output shaft of the power unit, and its outer circumferential surface is the drive part. The drive part of the drive wheel engages with the outer circumferential surface or end edge of the nut through frictional transmission. This allows for the driving of various types of nuts. The nut tightening machine is small in size, extremely inexpensive, and easy to carry. It can drive various types of nuts, including spherical, hexagonal, cylindrical, conical, polygonal, etc. The nut and drive wheel have a certain contact area, ensuring sufficient friction between them to rotate the nut. All types of nuts can be used. The machine quickly drives the nut to rotate along the screw, enabling rapid assembly or disassembly. Simultaneously, the nut can quickly separate from the drive wheel, improving assembly or disassembly speed and efficiency. Utilizing frictional transmission, if the nut and screw have damaged threads or are mismatched, the nut will not rotate along the screw, and slippage will occur at the contact area between the nut and the drive part of the drive wheel. Therefore, the drive part will not rotate the nut, preventing accidental injury from screw rotation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model;

[0020] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of Embodiment 2 of this utility model;

[0022] Figure 4 This is a front view of Embodiment 2 of this utility model. Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Figures 1 to 4 This is a schematic diagram of the structure of this utility model.

[0025] The attached figures are labeled as follows: drive wheel 1, drive unit 11, power unit 2, motor 21, fixing sleeve 22, stop ring 23, power supply system 3, power adapter 31, switch 32, female plug 33, male plug 34, anti-detachment component 4, baffle 41, fixing screw 42, bracket 5, vertical plate 51, horizontal plate 52, fixing hole 53, protective shell 6, and magnetic magnet 61.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings: Example

[0027] like Figure 1 and Figure 2As shown, a simple nut tightening machine includes: a drive wheel 1 and a power unit 2. The drive wheel 1 is mounted on the output shaft of the power unit 2. The drive wheel 1 is made of materials such as rubber, silicone, polyurethane, or polyurethane, and has the characteristics of wear resistance and elasticity. The power unit 2 can drive the drive wheel to rotate at a speed of 500 r / min to 6000 r / min, preferably 2000 r / min. The power unit 2 includes a motor connected to a reduction gearbox, which achieves the required speed through the reduction gear. It can also be electrically connected to a speed regulator to finely adjust the motor speed. The outer circumferential surface of the drive wheel 1 is the drive part 11. The outer circumferential surface of the drive wheel 1 can be textured to increase friction (not shown in the figure). The outer diameter of the drive wheel 1 is larger than the outer diameter of the power unit 2 so that the power unit 2 will not interfere with the drive wheel 1. The screw moves, and the driving part 11 of the drive wheel 1 rubs against the outer peripheral surface or end face edge of the nut. During assembly, the power unit 2 drives the drive wheel 1 to rotate forward. The nut is held by hand at the end of the screw. The screw described in this utility model is an assembly with threads and a nut, including threaded screws, bolts, screws, studs, etc. Hold the non-assembly end of the screw with your hand in front of the drive wheel 1 (away from the side of the power unit 2). By holding it like this, the nut will move closer to the holding end, which is considered as assembling the nut. This makes the nut at the end of the screw contact the outer peripheral surface of the drive wheel 1. The nut rotates and screws into the screw. During the screwing process, the hand applies force to the screw and moves closer to the drive wheel 1. This way of delivering the screw keeps the nut in contact with the outer peripheral surface of the drive wheel 1 until the predetermined position is reached. Then, lift the screw to separate the nut from the outer peripheral surface of the drive wheel 1, thus completing the tightening of the nut.There are two methods for disassembly. The first method: Power unit 2 rotates drive wheel 1 clockwise. Hold the non-disassembly end of the screw, with your hand behind drive wheel 1 (towards power unit 2). The nut will move away from the hand, which is considered disassembly. This brings the nut on the screw into contact with the outer circumference of drive wheel 1. The nut rotates towards the disassembly end. During the nut's movement, your hand applies force to the screw and moves away from drive wheel 1. This method of delivering the screw keeps the nut in contact with the outer circumference of drive wheel 1 until the nut detaches from the screw. The second method: Power unit 2 rotates drive wheel 1 counterclockwise. Your hand is in front of drive wheel 1 (away from power unit 2). The operation method is the same as the first method. During the nut's movement, your hand applies force to the screw and moves away from drive wheel 1. This method of delivering the screw keeps the nut in contact with the outer circumference of drive wheel 1 until the nut detaches from the screw. Both methods can disassemble the nut. This method allows for nut removal without changing the rotation direction of the drive wheel 1. The nut tightening machine is small, extremely inexpensive, and portable. It can drive various types of nuts, including spherical, hexagonal, cylindrical, conical, polygonal, washer-type, cap-type, and slotted nuts. It can also drive nuts of the same type but different sizes. The nut and drive wheel have a certain contact area, ensuring sufficient friction to rotate the nut. All types of nuts can be used. The rapid rotation of the nut along the screw facilitates quick assembly or disassembly. Simultaneously, the nut can quickly separate from the drive wheel, improving assembly or disassembly speed and efficiency. Utilizing friction transmission, if the nut and screw have damaged threads or are mismatched, the nut will not rotate along the screw, and slippage will occur at the contact point between the nut and the drive wheel. Therefore, the drive wheel will not rotate the nut, preventing accidental hand injury from screw rotation.

[0028] The power unit 2 includes a motor 21, which is electrically connected to the power supply system 3 via wires. The motor 21 can be a brushed motor, a brushless motor, a DC geared motor, or a brushless geared motor.

[0029] A fixing sleeve 22 is provided between the drive wheel 1 and the output shaft of the motor 21. The fixing sleeve 22 is fixed on the output shaft of the motor 21. (There are many ways to fix the fixing sleeve 22 and the output shaft of the motor 21.) The fixing sleeve 22 and the output shaft of the motor 21 are connected by a thread or an interference fit, or by a screw connected to the radial screw hole on the fixing sleeve 22 so that the screw abuts against the output shaft (not shown in the figure). In this embodiment, an interference fit connection is preferred. The drive wheel 1 is fixed on the fixing sleeve 22, and the fixing sleeve 22 can ensure that the connection between the drive wheel 1 and the output shaft of the motor 21 is more secure.

[0030] The drive wheel 1 is interference-fitted with the fixed sleeve 22, making it easy to replace the drive wheel 1 after it wears out.

[0031] The outer end of the fixed sleeve 22 is provided with an anti-detachment component 4 to prevent the drive wheel 1 from detaching from the fixed sleeve 22.

[0032] The anti-detachment component 4 includes a baffle 41 and a fixing screw 42. The baffle 41 is fitted onto the fixing screw 42, and the fixing screw 42 is connected to the central screw hole of the fixing sleeve 22. The baffle 41 abuts against the end face of the drive wheel 1. The outer diameter of the baffle 41 is larger than the outer diameter of the fixing sleeve 22 to prevent the drive wheel 1 from detaching from the fixing sleeve 22. The rear end of the fixing sleeve 22 is provided with a stop ring 23, which abuts against the rear end face of the drive wheel 1.

[0033] The power supply system 3 includes a power adapter 31 and a switch 32. The power adapter 31, switch 32 and motor 21 are electrically connected. The switch 32 is a forward and reverse control switch. The motor 21, switch 32 and female plug 33 are connected by wires. The forward and reverse control circuit of the motor is existing technology and the connection method is the same as existing technology. The power adapter 31 and forward and reverse switch are existing technologies and are widely sold on the market. Their structure will not be described again. Just connect the wires to the corresponding contact points. The female plug 33 can be connected to the male plug 34 of the power adapter 31. Of course, the plug of the power adapter 31 can be a female plug and the plug on the motor 21 circuit is a male plug 34. Therefore, the male and female plug setting method cannot be a limiting condition. The connection point between the wire and the motor is equipped with a protective sleeve (not shown in the figure) to provide insulation protection.

[0034] The motor 21 is fixed to the bracket 5 by connecting screws; the bracket 5 includes a vertical plate 51 and a horizontal plate 52 that is bent in the shape of the vertical plate 51. The horizontal plate 52 is provided with fixing holes 53. The bracket 5 can be fixed to the worktable by screws passing through the fixing holes 53. If the horizontal plate 52 has sufficient support, it can be fixed without screws. Whether to fix it or not can be selected according to the usage, which is convenient for operation.

[0035] Working principle:

[0036] Fix the nut tightening machine on the workbench, connect the plug of the power adapter 31 to the power supply, turn on the switch, so that the power unit 2 drives the drive wheel 1 to rotate forward during assembly. Hold the nut on the end of the screw by hand, holding the non-assembly end of the screw with your hand in front of the drive wheel 1 (away from the side of the power unit 2). By holding it like this, the nut will move closer to the holding end, which is considered as assembling the nut. Make the nut at the end of the screw contact the outer peripheral surface of the drive wheel 1. The nut rotates and screws into the screw. During the screwing process, the hand applies force to the screw and moves closer to the drive wheel 1. By delivering the screw in this way, the nut is kept in contact with the outer peripheral surface of the drive wheel 1 until the predetermined position is reached. Lift the screw to separate the nut from the outer peripheral surface of the drive wheel 1, and the nut tightening is completed.

[0037] There are two methods for disassembly. The first method involves the power unit 2 rotating the drive wheel 1 clockwise. Holding the screw at the non-disassembly end, with your hand behind the drive wheel 1 (towards the power unit 2), the nut will move away from your hand, signifying disassembly. This allows the nut on the screw to contact the outer circumference of the drive wheel 1. The nut rotates towards the disassembly end. During this movement, your hand applies force to the screw and moves away from the drive wheel 1. This method of delivering the screw keeps the nut in contact with the outer circumference of the drive wheel 1 until the nut detaches from the screw. The second method involves the power unit 2 rotating the drive wheel 1 counter-clockwise. Your hand is positioned in front of the drive wheel 1 (away from the power unit 2). The operation is the same as the first method: the nut on the screw contacts the outer circumference of the drive wheel 1, and the nut rotates towards the disassembly end. During this movement, your hand applies force to the screw and moves away from the drive wheel 1. This method of delivering the screw keeps the nut in contact with the outer circumference of the drive wheel 1 until the nut detaches from the screw, completing the disassembly. Example

[0038] like Figure 3 and Figure 4 As shown, the nut tightening machine in this embodiment has a basically the same structure as the nut tightening machine in Embodiment 1. The difference is that in this embodiment, the motor 21 is fixed inside the protective shell 6 by screws, the output shaft of the motor 21 extends out of the protective shell 6, a switch 32 is fixed on the protective shell 6, and a female plug 33 adapted to the male plug 34 of the power adapter 31 is provided on the protective shell 6. The switch 32 is a forward and reverse switch. The motor 21, the switch 32 and the female plug 33 are connected by wires. The protective shell 6 is an upper and lower box that interlocks with each other. The protective shell 6 can protect the motor from external environmental interference and improve its service life.

[0039] The bottom of the protective shell 6 is equipped with an adsorption magnet 61, which can be adsorbed onto a ferromagnetic workbench for easy operation without the need for screws and without damaging the workbench.

[0040] The preferred embodiment of this utility model has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of this utility model.

Claims

1. A simple nut tightening machine, characterized in that, include: A drive wheel (1) and a power unit (2) are provided. The output shaft of the power unit (2) is provided with a drive wheel (1). The outer peripheral surface of the drive wheel (1) is a drive part (11). The drive part (11) of the drive wheel (1) is driven by friction with the outer peripheral surface or end face edge of the nut. The drive part (11) of the drive wheel (1) can drive nuts of various types. The power unit (2) includes a motor (21). The motor (21) is electrically connected to the power supply system (3) through a wire. The motor (21) is fixed on the protective shell (6). Inside the protective housing (6), the output shaft of the motor (21) extends out of the protective housing (6); a fixing sleeve (22) is provided between the drive wheel (1) and the output shaft of the motor (21), the fixing sleeve (22) is fixed on the output shaft of the motor (21), and the drive wheel (1) is fixed on the fixing sleeve (22); the fixing sleeve (22) and the output shaft of the motor (21) are connected by a threaded connection or an interference fit connection or by a screw connected to the radial threaded hole on the fixing sleeve (22) so that the screw abuts against the output shaft of the motor (21).

2. The simplified nut tightening machine according to claim 1, characterized in that, The motor (21) is fixed to the bracket (5) by connecting screws.

3. A simplified nut tightening machine according to claim 1 or 2, characterized in that, The drive wheel (1) is interference-fitted with the fixed sleeve (22).

4. A simple nut tightening machine according to claim 3, characterized in that, The outer end of the fixing sleeve (22) is provided with an anti-detachment component (4).

5. A simple nut tightening machine according to claim 4, characterized in that, The anti-detachment component (4) includes a baffle (41) and a fixing screw (42). The baffle (41) is fitted onto the fixing screw (42). The fixing screw (42) is connected to the central screw hole of the fixing sleeve (22). The baffle (41) abuts against the front end face of the drive wheel (1).

6. A simplified nut tightening machine according to claim 5, characterized in that, The power supply system (3) includes a power adapter (31) and a switch (32), which are electrically connected to the motor (21).

7. A simplified nut tightening machine according to claim 6, characterized in that, The rear end of the fixed sleeve (22) is provided with a stop ring (23), which abuts against the rear end face of the drive wheel (1).

8. A simplified nut tightening machine according to claim 7, characterized in that, A switch (32) is fixed on the protective shell (6), and a female plug (33) adapted to the male plug (34) of the power adapter (31) is provided on the protective shell (6). An adsorption magnet (61) is provided at the bottom of the protective shell (6).

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