A reading lamp assembly automatic screwing device

Abstract

The utility model discloses a reading lamp assembly automatic screwing device relates to screwing technical field, aims at solving the technical problem that the current screw hole may have deviation in the process of alignment, and the screw may have the technical problem of deviation, including apron, the apron top is provided with the guide mechanism, the guide mechanism inboard is provided with the auxiliary mechanism, the apron surface is provided with the mounting hole. The utility model through the design of the elastic fin normal state support clamping frame forms static channel, when the screw extrusion inclined guide surface, clamping frame passes through the radial sliding of sliding rod in the sliding groove, extruding elastic fin makes it produce circumferential linkage bending deformation, when the screw and screw hole exist slight angle deviation, the radial displacement of inclined guide surface after extrusion, the ball is close to the screw rod body under the energy storage resilience drive of elastic fin, offsets the offset force, solves the current screw hole may have deviation in the process of alignment, and the screw may have the problem of deviation.

Description

Technical Field

[0001] This utility model relates to the field of screw-driving technology, and more specifically, to an automatic screw-driving device for a reading light assembly. Background Technology

[0002] A reading light assembly is a lighting device installed inside a vehicle. It is mainly used to provide sufficient brightness for passengers in low-light conditions, facilitating reading and other activities, without affecting the driver's normal driving. During its production, an automatic screw-driving device is used to perform the screw-driving operation.

[0003] Existing automatic screw-driving devices consist of two systems: a feeding system and a locking system. Manually, screws are placed into a rotary screw feeder, which then sorts them. An electric screwdriver is then used to pick up the screws, move them to their corresponding positions, and perform the screw-driving operation. However, because the screw holes in the reading light assembly are too small, misalignment may occur during the alignment process. Even slight misalignment can cause the screws to be misplaced, and they may shift during rotation, resulting in poor screw-driving performance. Therefore, we propose an automatic screw-driving device for reading light assemblies. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an automatic screw-driving device for reading light assemblies to solve the technical problem that the screw holes may be misaligned and the screws may shift during the current process of aligning them.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic screw-driving device for a reading lamp assembly, including a cover plate, a guide mechanism on the top of the cover plate, an auxiliary mechanism on the inner side of the guide mechanism, and mounting holes on the surface of the cover plate; the guide mechanism includes multiple circumferentially distributed clamping frames and elastic fins arranged in a fish-scale-like stacked pattern, the clamping frames are fixed to the outer wall of the elastic fins, and the clamping frames are fixedly installed on the outer wall of the elastic fins; the top of the multiple clamping frames is provided with an inclined guide surface that is higher on the outer side and lower on the inner side, which together constitute a third guide part, forming a cylindrical guide channel under normal conditions; the auxiliary mechanism includes a first guide part and a second guide part arranged coaxially, the conical outlet end face of the second guide part and the inlet of the inclined guide surface of the third guide part forming a coaxial connection structure, and the first guide part, the second guide part and the third guide part constitute a first guide channel.

[0006] Preferably, the guiding mechanism further includes a mounting frame, which is fixedly installed inside the mounting hole of the cover plate. The elastic wing is fixedly installed inside the mounting frame. A sliding groove is provided at the bottom of the mounting frame. A sliding rod is fixedly installed at the bottom of the clamping frame. The sliding rod is slidably installed inside the sliding groove. A ball bearing is movably installed inside the clamping frame.

[0007] Preferably, the first guide portion is fixedly installed inside the mounting frame, and a second guide portion is fixedly installed at the bottom of the first guide portion, with a transition portion connecting the first guide portion and the second guide portion.

[0008] Preferably, the edges of the fish-scale-like stacked elastic blades overlap, and the radial sliding of any clamp triggers the circumferential linkage bending deformation of all elastic blades through the overlapping edges.

[0009] Preferably, when the screw is not in contact, the inclined guide surface of the third guide part forms a static cylindrical guide channel. When the screw enters the third guide part, the inclined guide surface is squeezed and generates radial displacement. At this time, the static guide channel is transformed into a dynamic adaptive channel.

[0010] Preferably, the first guide part is an integral conical sleeve with a large inlet and a small outlet, the transition part has a smooth arc-shaped rounded corner surface on its inner wall, and the second guide part is a conical sleeve with a large inlet and a small outlet, the cone angle of which is smaller than that of the first guide part.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a designed elastic wing to support the clamping frame in a static channel under normal conditions. When the screw presses against the inclined guide surface, the clamping frame slides radially in the slide groove through the sliding rod, pressing the elastic wing to cause circumferential linkage bending deformation. When there is a slight angular deviation between the screw and the screw hole, the inclined guide surface is compressed and then radially displaced. The ball bearings are driven by the energy stored in the elastic wing to tightly adhere to the screw rod body, offsetting the offset force and avoiding skewing or jamming caused by rigid collision. This solves the problem that the screw may be misaligned during the current process of aligning the screw hole, and the screw may be misaligned.

[0013] 2. This utility model also designs the first guide part as a large-cone-angle conical sleeve with a large inlet and a small outlet, which can quickly capture the initial position of the screw and form a coarse guide. The second guide part has a smaller cone angle than the first guide part, forming a fine guide, which further reduces the screw deviation range. The third guide part is composed of the inclined guide surface of the clamping frame. When static, it is a cylindrical channel and is coaxially connected to the outlet of the second guide part. The conical surface guides the screw to axial alignment, so that the screw is aligned before entering the screw hole, which further solves the problem that the current screw hole alignment process may have some alignment deviation and the screw may be offset. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the pressing mechanism and related structures of this utility model;

[0016] Figure 3 This is an exploded structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the pressing mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the guiding mechanism structure of this utility model;

[0019] Figure 6 This is a cross-sectional structural diagram of the guide mechanism of this utility model;

[0020] Figure 7 This is a schematic diagram of the top structure of the guide mechanism of this utility model.

[0021] The following are the labels in the diagram: 1. Frame; 2. Guide mechanism; 21. Mounting frame; 22. Elastic wing; 23. Slide groove; 24. Clamping frame; 241. Third guide section; 25. Sliding rod; 26. Ball bearing; 3. Auxiliary mechanism; 31. First guide section; 32. Transition section; 33. Second guide section; 4. Electric screwdriver body; 5. Rotary screw feeder; 6. Electric slide rail; 7. Sliding frame; 8. Reading light assembly; 9. Pressing mechanism; 91. Electric push rod; 92. Flipping rod; 93. Cover plate; 94. Connecting rod. Detailed Implementation

[0022] like Figures 1 to 7As shown, this utility model relates to an automatic screw-driving device for a reading lamp assembly, including a cover plate 93. A guide mechanism 2 is provided on the top of the cover plate 93, and an auxiliary mechanism 3 is provided on the inner side of the guide mechanism 2. Mounting holes are provided on the surface of the cover plate 93. The guide mechanism 2 includes multiple circumferentially distributed clamping frames 24 and elastic winglets 22 arranged in a fish-scale-like stacked manner. The edges of the fish-scale-like stacked elastic winglets 22 overlap. The radial sliding of any clamping frame 24 triggers the circumferential linkage bending deformation of all elastic winglets 22 through the overlapping edges. The clamping frame 24 is fixed to the outer wall of the elastic winglet. The clamping frame 24 is fixedly installed on the outer wall of the elastic winglet 22. The top of the multiple clamping frames 24 is provided with inclined guide surfaces that are higher on the outer side and lower on the inner side, which together constitute a third guide part 241. Under normal conditions, it forms a cylindrical guide channel. When the screw is not in contact, the inclined guide surfaces of the third guide part 241 combine to form a static cylindrical guide channel. When the screw enters the third guide part 241, the inclined guide surfaces are squeezed and generate radial displacement. At this time, the static guide channel is transformed into a dynamic adaptive channel. The auxiliary mechanism 3 includes a first guide part 31 and a second guide part 33 arranged coaxially. The conical outlet end face of the second guide part 33 and the inclined guide surface inlet of the third guide part 241 form a coaxial connection structure. The first guide part 31, the second guide part 33 and the third guide part 241 constitute the first guide channel. In this utility model, the elastic wing 22 is designed to support the clamping frame 24 to form a static channel under normal conditions. When the screw presses the inclined guide surface, the clamping frame 24 slides radially in the slide groove 23 through the sliding rod 25, which presses the elastic wing 22 to produce circumferential linkage bending deformation. When there is a slight angular deviation between the screw and the screw hole, the inclined guide surface is compressed and then radially displaced. The ball 26 is driven by the energy stored in the elastic wing 22 to stick tightly to the screw rod body, offsetting the offset force and avoiding skewing or jamming caused by rigid collision. This solves the problem that there may be misalignment during the current process of aligning the screw hole, and the screw may shift.

[0023] Furthermore, such as Figures 5 to 7 As shown, the guide mechanism 2 also includes a mounting frame 21, which is fixedly installed inside the mounting hole of the cover plate 93. The elastic wing 22 is fixedly installed inside the mounting frame 21. A sliding groove 23 is provided at the bottom of the mounting frame 21. A sliding rod 25 is fixedly installed at the bottom of the clamping frame 24. The sliding rod 25 is slidably installed inside the sliding groove 23. A ball bearing 26 is movably installed inside the clamping frame 24. When the screw is inserted, the ball bearing 26 converts the sliding friction into rolling friction, reduces the guiding resistance, reduces the screw offset caused by uneven friction, and ensures the axial stability of the screw.

[0024] Furthermore, such as Figures 5 to 6As shown, the first guide part 31 is fixedly installed inside the mounting frame 21, and the second guide part 33 is fixedly installed at the bottom of the first guide part 31. The first guide part 31 and the second guide part 33 are connected by a transition part 32. The first guide part 31 is an integral conical sleeve with a large inlet and a small outlet. The inner wall of the transition part 32 is provided with a smooth arc-shaped rounded corner surface. The second guide part 33 is a conical sleeve with a large inlet and a small outlet, and the cone angle is smaller than that of the first guide part 31. This utility model also designs the first guide part 31 as a conical sleeve with a large cone angle, so that the inlet... With a large opening and a small exit, the screw's initial position can be quickly captured, forming a coarse guide. The cone angle of the second guide 33 is smaller than that of the first guide 31, forming a fine guide, further reducing the screw deviation range. The third guide 241 is composed of the inclined guide surface of the clamping frame 24. When static, it is a cylindrical channel and is coaxially connected to the exit of the second guide 33. The conical surface guides the screw to axial alignment, so that the screw is aligned before entering the screw hole, further solving the problem that the screw may be misaligned during the current alignment process.

[0025] It should be noted that this utility model consists of an electric screwdriver body 4; a rotary screw feeder 5 for supplying screws; an electric slide rail 6, installed parallel to the bottom of the electric screwdriver body 4; a sliding frame 7, slidably mounted on the electric slide rail 6 and provided with a mounting groove for assembling the reading lamp assembly 8; and a pressing mechanism 9, including: an electric push rod 91 fixed to the side of the sliding frame 7; a flipping rod 92 hinged to the output end of the electric push rod 91; a cover plate 93 covering the top of the reading lamp assembly 8 and fixedly connected to the flipping rod 92; and a connecting rod 94, with both ends hinged to the mounting frame of the electric push rod 91 and the flipping rod 92, respectively. The electric push rod 91 pushes the flipping rod 92 to rotate and, in conjunction with the cover plate 93, flips the cover plate 93, aligning the mounting hole of the cover plate 93 with the screw hole of the reading lamp assembly 8. This part is the structure of an automatic screw fastening machine and will not be explained further here.

[0026] Working Principle: This embodiment provides an automatic screw-driving device for a reading light assembly. In use, after placing the reading light assembly 8 inside the corresponding assembly slot of the sliding frame 7, the electric push rod 91 is activated. The output end of the electric push rod 91 pushes the flipping rod 92 to rotate. The rotation of the flipping rod 92 causes the cover plate 93 to flip, thus covering the top of the reading light assembly 8. The connecting rod 94 is rotatably mounted to the mounting bracket on the outside of the electric push rod 91, while the flipping rod 92 is rotatably mounted to the connecting rod 94. After the cover plate 93 covers the top of the reading light assembly 8, the mounting holes on the surface of the cover plate 93 correspond to the screw holes of the reading light assembly 8. After moving the sliding frame 7 to the bottom of the electric screwdriver body 4 using the electric slide rail 6, the electric screwdriver body 4 is activated to perform the screw-driving operation on the reading light assembly 8. First, the screws are attracted from the rotary screw feeder 5 to complete the screw feeding operation. Then, the electric screwdriver body 4 is activated to perform the screw-driving operation on the reading light assembly 8.

[0027] During the screw-driving process, the electric screwdriver body 4 moves the screw to the mounting hole position and first contacts the first guide part 31, which guides the screw for quick insertion. Then, it is guided a second time by the second guide part 33. A transition part 32 separates the first and second guide parts 31 for transition. After the screw enters the guide channel composed of four clamping frames 24, it pushes the clamping frames 24 outwards. This pressure causes the sliding rod 25 at the bottom of the clamping frame 24 to move during installation. The screw slides inside the groove at the bottom of the frame 21, which in turn causes the clamping frame 24 to compress the elastic wing 22, causing the elastic wing 22 to store energy and expand. When the screw enters the guide channel, it first passes through the ball 26, changing from sliding friction to rolling friction. When the screwdriver bit enters the guide channel, it first passes through the ball 26 and expands. After disengaging from the ball 26, the clamping frame 24 rebounds under the action of the elastic wing 22, using the ball 26 to guide the screw again, ensuring that the screw does not become skewed during the screw-driving process.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An automatic screw-driving device for a reading lamp assembly, comprising a cover plate (93), characterized in that, The top of the cover plate (93) is provided with a guide mechanism (2), the inner side of the guide mechanism (2) is provided with an auxiliary mechanism (3), and the surface of the cover plate (93) is provided with mounting holes; The guiding mechanism (2) includes multiple circumferentially distributed clamping frames (24) and fish-scale-like stacked elastic winglets (22). The clamping frames (24) are fixed to the outer wall of the elastic winglets. The clamping frames (24) are fixedly installed on the outer wall of the elastic winglets (22). The top of the multiple clamping frames (24) is provided with an inclined guide surface that is high on the outside and low on the inside, which together constitutes the third guiding part (241) and forms a cylindrical guiding channel under normal conditions. The auxiliary mechanism (3) includes a first guide part (31) and a second guide part (33) arranged coaxially. The conical outlet end face of the second guide part (33) and the inclined guide surface inlet of the third guide part (241) form a coaxial connection structure. The first guide part (31), the second guide part (33) and the third guide part (241) constitute a first guide channel.

2. The automatic screw-driving device for a reading lamp assembly according to claim 1, characterized in that, The guide mechanism (2) also includes a mounting frame (21), which is fixedly installed inside the mounting hole of the cover plate (93). The elastic wing (22) is fixedly installed inside the mounting frame (21). A sliding groove (23) is provided at the bottom of the mounting frame (21). A sliding rod (25) is fixedly installed at the bottom of the clamping frame (24). The sliding rod (25) is slidably installed inside the sliding groove (23). A ball bearing (26) is movably installed inside the clamping frame (24).

3. The automatic screw-driving device for a reading lamp assembly according to claim 1, characterized in that, The first guide part (31) is fixedly installed inside the mounting frame (21), and the second guide part (33) is fixedly installed at the bottom of the first guide part (31). The first guide part (31) and the second guide part (33) are connected by a transition part (32).

4. The automatic screw-driving device for a reading lamp assembly according to claim 2, characterized in that, The fish-scale-like stacked edges of the elastic blades (22) partially overlap, and the radial sliding of any clamp (24) triggers the circumferential linkage bending deformation of all elastic blades (22) through the overlapping edges.

5. The automatic screw-driving device for a reading lamp assembly according to claim 2, characterized in that, When the screw is not in contact, the inclined guide surface of the third guide part (241) forms a static cylindrical guide channel. When the screw enters the third guide part (241), the inclined guide surface is squeezed and generates radial displacement. At this time, the static guide channel is transformed into a dynamic adaptive channel.

6. The automatic screw-driving device for a reading lamp assembly according to claim 3, characterized in that, The first guide part (31) is an integral conical sleeve with a large inlet and a small outlet. The transition part (32) has a smooth arc-shaped rounded corner surface on its inner wall. The second guide part (33) is a conical sleeve with a large inlet and a small outlet, and the cone angle is smaller than that of the first guide part (31).

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