Screw assembling device with variable assembling angle

Abstract

The invention discloses an assembling angle variable screw assembling device which comprises a handle control mechanism and an angle changing mechanism, the handle control mechanism comprises a grip, a connector is arranged at the end of the grip, and the angle changing mechanism comprises a transmission mechanism and an angle fixing mechanism. The transmission mechanism comprises a transmission rod connected with the connector, an adapter rod used for installing a screwdriver bit and a hinge shaft used for achieving hinge joint of the transmission rod and the adapter rod, the angle fixing mechanism comprises a limiting cover arranged outside the transmission rod in a sleeving mode and an adapter limiting cover arranged outside the adapter rod in a sleeving mode, one end of the limiting cover is connected with the grip, and a plug pin mechanism is installed at the other end of the limiting cover. A fluted disc is installed on the switching limiting cover, the bolt mechanism is inserted into or separated from the fluted disc, when the bolt mechanism is separated from the fluted disc, the switching rod is allowed to rotate relative to the transmission rod, and when the bolt mechanism is inserted into the fluted disc, relative rotation of the switching rod and the transmission rod is limited. The device can realize variable assembly angle, assembly visualization and automation, and is simple in structure and convenient to operate.

Description

Technical Field

[0001] The invention relates to a mechanical assembly device, in particular to a screw assembly device with variable assembly angle. Background Art

[0002] With the development of mechanical equipment design concepts and mechanical assembly process technology, the structural design of various mechanical equipment devices is becoming more and more complex, and the structural space is becoming smaller and smaller. When assembling the structure, the operating space is getting smaller and smaller, and the visibility of the operation is low, which reduces the assembly efficiency and makes the assembly process requirements more and more stringent. Traditional screw assembly tools are mainly screwdrivers. Screwdrivers of different lengths can meet the requirements of different depths of assembly space. However, for structural designs with complex internal spaces and various screw assembly directions, screwdrivers with a single assembly direction cannot meet the assembly requirements.

[0003] Currently, the problem of single screwdriver assembly angle is solved by using flexible adapters. However, the deflection and shape of the flexible adapters are difficult to control during use, which may damage other surrounding parts and cause new assembly quality problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is that, in view of the drawback that the conventional screwdriver is used for screw assembly at a single angle, the present invention provides a screw assembly device with a variable assembly angle.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A screw assembly device with a variable assembly angle comprises a handle control mechanism and an angle change mechanism, wherein the handle control mechanism comprises a handle, and the end of the handle has a connecting head, and the angle change mechanism comprises a transmission mechanism and an angle fixing mechanism, wherein the transmission mechanism comprises a transmission rod connected to the connecting head, a transfer rod for installing a screw bit, and a hinge shaft for realizing the hinge connection between the transmission rod and the transfer rod, and the angle fixing mechanism comprises a limit cover sleeved on the outside of the transmission rod and a transfer limit cover sleeved on the outside of the transfer rod, one end of the limit cover is connected to the handle, and the other end is equipped with a latch mechanism, a toothed disc is installed on the transfer limit cover, and the latch mechanism is inserted into or disengaged from the toothed disc, and when the latch mechanism is disengaged from the toothed disc, the transfer rod is allowed to rotate relative to the transmission rod, and when the latch mechanism is inserted into the toothed disc, the relative rotation of the transfer rod and the transmission rod is restricted.

[0007] The present invention installs an angle changing mechanism on the grip of the handle control mechanism. The angle changing mechanism can change the screw assembly angle according to the assembly position and direction of different screws through the hinge connection between a transmission rod connected to the grip and an adapter rod for installing a screw bit, and can realize the positioning of the screw assembly angle through the connection between a pin on a limit cover and a toothed disc on an adapter limit cover.

[0008] Preferably, the handle comprises a housing, a first switch is mounted on the housing, a battery, a motor and a reducer are mounted in the housing, the battery, the motor and the first switch are connected to form a first electrical circuit, the output shaft of the motor is connected to the input shaft of the reducer, and the output shaft of the reducer serves as the connector. In this way, the present invention can realize the automation of screw assembly.

[0009] Preferably, a camera with a lighting lamp is installed at the end of the adapter limit cover, a second switch and a display screen are installed on the housing, the second switch, the battery, and the lighting lamp are connected to form a second electrical circuit, the signal output line of the camera is connected to the display screen, and at the same time, the camera, the battery, and the display screen are connected to form a third electrical circuit. In this way, the present invention can provide lighting for screw assembly through the lighting lamp, and can also transmit the assembly picture in real time through the camera to realize the visualization of screw assembly.

[0010] Preferably, the first switch is a double-throw switch, so that the forward and reverse rotation of the motor can be realized by switching the double-throw switch, thereby realizing the assembly or withdrawal of the screw.

[0011] Preferably, the housing comprises a base, an upper cover, a first side cover and a second side cover, the first side cover and the second side cover are connected to form a hollow cavity, one end of the hollow cavity is mounted with the base, and the other end is mounted with the upper cover.

[0012] Preferably, the lighting lamp is an LED lamp.

[0013] Preferably, the articulated shaft comprises a universal ball placed in the transmission rod and the transfer rod, two groups of connecting pins distributed in a cross shape on the universal ball, the transmission rod and the transfer rod are respectively connected to a group of connecting pins on the universal ball, and the central axis of the toothed disc passes through the center of the universal ball. In this way, not only can the transfer rod be universally rotated relative to the transmission rod, but the installation of the toothed disc will not affect the rotation of the transfer rod, and the positioning of the transfer rod can be achieved through the engagement of the toothed disc with the latch mechanism.

[0014] Preferably, the limiting cover is installed coaxially with the transmission rod, the transfer rod is installed coaxially with the transfer limiting cover, and a bearing is installed between the transfer rod and the transfer limiting cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The assembly angle of the present invention is variable, and the assembly can be visualized and automated. The overall structure is simple and easy to operate, which solves the problems of single assembly angle, low assembly visibility and low manual assembly efficiency of traditional screwdrivers.

[0017] 2. The present invention can be used for screw assembly in various complex spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a structural diagram of the handle control mechanism.

[0021] Figure 3 It is a structural schematic diagram of the angle conversion mechanism.

[0022] Figure 4 It is a structural diagram of the transmission mechanism.

[0023] Figure 5 It is a structural schematic diagram of the angle fixing mechanism.

[0024] Figure 6 It is a structural schematic diagram of the latch mechanism.

[0025] In the figure: 1. handle control mechanism; 2. angle change mechanism; 11. bottom cover; 12. upper cover; 13. first side cover; 14. second side cover; 15. battery; 16. motor; 17. reducer; 18. first switch; 19. display screen; 20. second switch; 21. transmission mechanism; 22. angle fixing mechanism; 23. bearing; 221. limit cover; 222. transfer limit cover; 223. latch mechanism; 224. geared disc; 225. camera; 211. transfer rod; 212. universal ball; 213. transmission rod; 214. connecting pin; 2231. housing; 2232. cover plate; 2233. spring; 2234. latch; 2235. pin head; 2236. limit pin. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1 An embodiment of a screw assembly device with a variable assembly angle of the present invention is mainly composed of a handle control mechanism 1 and an angle conversion mechanism 2.

[0030] See also Figure 2 The main functions of the handle control mechanism 1 are to provide power for the screw assembly device, perform power and lighting control, and display the real-time assembly picture. The handle control mechanism 1 includes a handle, and the handle includes a shell. The shell includes a base 11, an upper cover 12, a first side cover 13, and a second side cover 14. The first side cover 12 and the second side cover 13 are connected to form a hollow cavity. The base 11 can be detachably installed at one end of the hollow cavity, and the upper cover 12 can be detachably installed at the other end. The hollow cavity contains a detachably installed rechargeable battery 15, and the battery 15 can be taken out by removing the base 11. A brushless motor 16 is installed on the top of the battery 15 to provide power for the device. The output shaft of the brushless motor 16 is connected to the input shaft of the reducer 17 through a key, and the output shaft of the reducer 17 extends out of the upper cover 12 as a connector of the angle conversion mechanism 2. The reducer 17 is used to reduce the high speed output by the motor 16 to a speed suitable for screw assembly.

[0031] The housing is provided with a first switch 18, and the battery 15, the motor 16 and the first switch 18 are connected to form a first electrical circuit through a cable for controlling the motor 16. The first switch 18 is preferably a double-throw switch for controlling the forward and reverse rotation of the motor 16.

[0032] A display screen 19 is installed on the first side cover 13 for displaying the real-time picture transmitted by the head camera of the screw assembly device. A second switch 20 is installed on one side of the first side cover 13 for controlling the switch of the lighting lamp on the head camera of the screw assembly device.

[0033] See also Figure 3-Figure 5 The main function of the angle conversion mechanism 2 is to change the screw assembly angle, which includes a transmission mechanism 21 and an angle fixing mechanism 22. The transmission mechanism 21 includes a transmission rod 211, a universal ball 212, and a transfer rod 213. Two groups of connecting pins 214 are distributed in a cross shape on the universal ball 212. The universal ball 212 is placed in the transmission rod 211 and the transfer rod 213, and one end of the transmission rod 211 and one end of the transfer rod 213 are respectively hinged to a group of connecting pins 214, so that the transfer rod 213 can realize universal rotation relative to the transmission rod 211 through the universal ball 212. The transmission rod 211 is connected to the output shaft of the reducer 17 through a key to realize transmission. Different types of screw bits can be installed on the other end of the transfer rod 213. The angle fixing mechanism 22 includes a limit cover 221 sleeved on the outside of the transmission rod 211, a transfer limit cover 222 sleeved on the outside of the transfer rod 213, a latch mechanism 223 and a toothed disc 224. One end of the limit cover 221 is connected to the upper cover 12 of the handle, and the other end is installed with the latch mechanism 223. The toothed disc 224 is installed on the transfer limit cover 222. The central axis of the toothed disc 224 passes through the center of the universal ball 212, and the latch of the latch mechanism 223 can be inserted into or out of the toothed disc 224. When the latch mechanism 223 is inserted into the toothed disc 224, the transmission rod 211 and the transfer rod 213 are locked, and relative rotation can no longer be achieved through the pin 214, thereby achieving the fixing of the assembly angle, ensuring that the assembly angle does not change during use. The limit cover 221 is installed coaxially with the transmission rod 211, and no eccentricity and friction will occur during the transmission process. The transfer rod 213 and the transfer limit cover 222 are coaxially installed, and a bearing 23 is installed between the two. The bearing 23 and the transfer rod 213 are interference fit, which is mainly used to ensure that the transfer rod 213 and the transfer limit cover 222 maintain a coaxial and concentric position relationship, ensure that the transmission angle and the assembly angle remain fixed, and avoid serious friction between the transfer rod 213 and the transfer limit cover 222, thereby shortening the service life. A miniature camera 225 with an LED light is installed at the end of the transfer limit cover 222 for lighting and transmitting real-time images.

[0034] See also Figure 6The latch mechanism 223 includes an outer box 2231, a cover plate 2232 is provided on the outer box 2231, a spring 2233 and a latch 2234 are installed in the outer box 2231, the latch 2234 passes through the spring 2234, and one end of the latch 2234 extends out of the outer box 2231 and is installed with a pin head 2235 to facilitate the control of the latch 2234; the other end of the latch 2234 extends out of the outer box 2231, and a limiting structure 2236 is provided near the outside of the outer box 2231 to prevent the latch 2234 from extending too long from the outer box 2231.

[0035] When the present invention is used, first pull down the latch 2234 of the latch mechanism 223, then adjust the angle of the angle fixing mechanism 22 (or the transmission mechanism 21) by rotating the transfer limit cover 222, and when the angle fixing mechanism 22 is rotated to the required angle, release the latch 2234, so that the latch 2234 is locked with the toothed disc 224 on the transfer limit cover 222, so that the assembly angle is fixed. After that, install the corresponding screwdriver bit on the transfer rod 213. Finally, insert the head of the transfer rod 213 into the space where the screws need to be assembled, press the second switch 20 to turn on the head lighting, and at the same time, the real-time picture transmitted by the head camera 225 can be seen on the display screen 19 of the handle control mechanism 1. By aligning the screwdriver bit with the corresponding screw and turning the first switch 18 to the positive rotation side, the screws can be assembled.

[0036] The above is only a specific implementation scheme of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the art can make many possible changes and modifications to the technical scheme of the present invention by using the technical content disclosed above without departing from the scope of the technical scheme of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical scheme of the present invention should fall within the protection scope of the technical scheme of the present invention.

Claims

1. A screw assembly device with a variable assembly angle, comprising a handle control mechanism, wherein the handle control mechanism comprises a grip, and the end of the grip has a connector, wherein: It also includes an angle conversion mechanism, which includes a transmission mechanism and an angle fixing mechanism. The transmission mechanism includes a transmission rod connected to the connecting head, a transfer rod for installing a screw bit, and a hinge shaft for realizing the hinge connection between the transmission rod and the transfer rod. The angle fixing mechanism includes a limit cover sleeved on the outside of the transmission rod and a transfer limit cover sleeved on the outside of the transfer rod. One end of the limit cover is connected to the handle, and a latch mechanism is installed on the other end. A toothed disc is installed on the transfer limit cover, and the latch mechanism is inserted into or disengaged from the toothed disc. When the latch mechanism is disengaged from the toothed disc, the transfer rod is allowed to rotate relative to the transmission rod. When the latch mechanism is inserted into the toothed disc, the relative rotation of the transfer rod and the transmission rod is restricted.

2. The screw assembly device with variable assembly angle according to claim 1, characterized in that: The handle includes a shell, a first switch is installed on the shell, a battery, a motor and a reducer are installed in the shell, the battery, the motor and the first switch are connected to form a first electrical circuit, the output shaft of the motor is connected to the input shaft of the reducer, and the output shaft of the reducer serves as the connector.

3. The screw assembly device with variable assembly angle according to claim 2, characterized in that: A camera with a lighting lamp is installed at the end of the adapter limit cover, and a second switch and a display screen are installed on the outer shell. The second switch, battery, and lighting lamp are connected to form a second electrical circuit, and the signal output line of the camera is connected to the display screen. At the same time, the camera, battery, and display screen are connected to form a third electrical circuit.

4. The screw assembly device with variable assembly angle according to claim 2, characterized in that: The first switch is a double-throw switch.

5. The screw assembly device with variable assembly angle according to claim 2, characterized in that: The housing comprises a base, an upper cover, a first side cover and a second side cover. The first side cover and the second side cover are connected to form a hollow cavity. The base is installed at one end of the hollow cavity, and the upper cover is installed at the other end.

6. The screw assembly device with variable assembly angle according to claim 3, characterized in that: The lighting lamp is an LED lamp.

7. The screw assembly device with variable assembly angle according to any one of claims 1 to 6, characterized in that: The articulated shaft includes a universal ball placed in the transmission rod and the transfer rod, and two groups of connecting pins distributed in a cross shape on the universal ball. The transmission rod and the transfer rod are respectively connected to a group of connecting pins on the universal ball, and the central axis of the gear plate passes through the center of the universal ball.

8. The screw assembly device with variable assembly angle according to any one of claims 1 to 6, characterized in that: The limiting cover is coaxially mounted with the transmission rod, the transfer rod is coaxially mounted with the transfer limiting cover, and a bearing is mounted between the transfer rod and the transfer limiting cover.

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