Automatic positioning and welding device for intelligent door lock hand lever machining

Abstract

The invention relates to the technical field of welding devices, in particular to an automatic positioning and welding device for intelligent door lock hand lever machining, which comprises a welding table, a welding mechanism is linearly and slidably mounted on the welding table, a linear driving part for driving the welding mechanism to slide is fixedly mounted on the welding table, and a right-angle plate is rotatably mounted in the middle of the welding table. The right-angle plate is used for fixing the handle; the welding mechanism comprises two extending frames located on the two sides of the right-angle plate, and welding arms for welding handles are installed on one sides of the two extending frames in a lifting mode. Wherein a polishing box is fixedly installed below the welding table, the polishing box is used for polishing the welded handle, an adjusting assembly is installed on the welding table in a sliding mode, and the adjusting assembly is used for driving a right-angle plate to rotate so that the handle can move into the polishing box. And handle welding and grinding machining can be completed more efficiently.

Description

Technical Field

[0001] This invention relates to the field of door lock welding technology, specifically to an automatic positioning welding device for processing the handle of an intelligent door lock. Background Technology

[0002] The smart door lock handle is the external operating component of the smart door lock. During the opening process, the connection between the handle and the internal lock body is required to have extremely high structural strength and reliability. To achieve this, some handles are fixed to the internal square steel or connecting parts by welding to ensure that the connection does not loosen or break under frequent opening and closing operations and possible abnormal external forces, thereby ensuring the overall service life and security of the lock.

[0003] Currently, after the welding of smart door lock handles is completed, the welding surface of the handle usually needs to be polished to further improve the surface quality of the welding surface and make the welding surface flush with the base material. Usually, the handle needs to be removed from the welding table for processing, which is not very efficient. Summary of the Invention

[0004] Technical problems to be solved In view of the above-mentioned shortcomings of the existing technology, the present invention provides an automatic positioning welding device for processing smart door lock handles. It can effectively solve the problem that after the welding processing of smart door lock handles is completed, the welding surface of the handle usually needs to be polished to further improve the surface quality of the welding surface and make the welding surface flush with the base material. This process usually requires the handle to be removed from the welding table for further processing, which is inefficient. Technical solution

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an automatic positioning welding device for processing intelligent door lock handles, including a welding table, a welding mechanism linearly slidably mounted on the welding table, a linear drive component for driving the welding mechanism to slide fixedly mounted on the welding table, and a right-angle plate rotatably mounted in the middle of the welding table for fixing the handle; The welding mechanism includes two extension frames located on both sides of the right-angle plate, and a welding arm for welding the handle is installed on one side of each extension frame. A polishing box is fixedly installed below the welding table. The polishing box is used to polish the handle after welding. An adjustment component is slidably installed on the welding table. The adjustment component is used to drive the right-angle plate to rotate, so that the handle moves into the polishing box.

[0006] Furthermore, the adjustment assembly includes a U-shaped frame slidably mounted on the welding table. The U-shaped frame is located between the welding mechanism and the right-angle plate. The two ends of the U-shaped frame are distributed on both sides of the right-angle plate. Gear racks are symmetrically fixedly mounted on both ends of the U-shaped frame. A rotating shaft is fixedly mounted at the corner of the right-angle plate. Gears that mesh with the gear racks are coaxially fixedly mounted on the rotating shaft.

[0007] Furthermore, a reinforcing plate is fixedly installed between the two protruding frames. The reinforcing plate is located on the side of the U-shaped frame away from the right-angle plate. The reinforcing plate can be used to abut against the U-shaped frame when the welding mechanism slides towards the right-angle plate, and synchronously drive the U-shaped frame to move. The welding table is provided with an elastic element for driving the U-shaped frame to reset.

[0008] Furthermore, two sets of fixing plates are fixedly installed inside the polishing box. The two sets of fixing plates are located on both sides below the right angle plate. A connecting rod is rotatably installed on each fixing plate. A polishing arm is fixedly installed below each connecting rod. The two polishing arms are located on both sides below the right angle plate. The connecting rod passes through the welding table and extends out.

[0009] Furthermore, the two sides of the U-shaped frame have protrusions at one end facing the connecting rod. The upper end of the connecting rod is located on the horizontal sliding channel of the U-shaped frame. The sliding of the U-shaped frame drives the right-angle plate to rotate. The protrusions on both sides of the U-shaped frame abut against the upper ends of the two connecting rods on both sides of the right-angle plate, thereby driving the polishing wheel of the polishing arm below the connecting rod to move to the handle welding position.

[0010] Furthermore, a sliding rod is fixedly installed on the welding table. One end of the sliding rod passes through the U-shaped frame and is slidably connected to the U-shaped frame. A limiting plate is fixedly installed on the other end of the sliding rod. The limiting plate is used to restrict the U-shaped frame from sliding away from the right-angle plate.

[0011] Furthermore, the right-angle plate includes a vertical section and a horizontal section. A rotating platform is fixedly installed on the horizontal section, and a fixed platform is rotatably installed on the rotating platform. A drive motor for driving the fixed platform to rotate is provided on the rotating platform, and the fixed platform is used to fix the clamping handle.

[0012] Furthermore, a fixing groove is provided on the fixing platform, the shape of the groove opening is adapted to the outer contour of the handle, a limiting block for pressing the handle is slidably installed inside the fixing groove, and a fixing rod for passing through the fixing platform and the limiting block is provided on the side of the fixing platform.

[0013] Furthermore, a threaded through hole is provided on one side of the fixed platform, and one end of the fixed rod passes through the threaded through hole and is threadedly connected to the fixed platform. Beneficial effects

[0014] The technical solution provided by this invention has the following advantages compared with known public technologies: This invention provides a polishing box located below the welding station, with the handle fixedly clamped to a right-angle plate. After the handle is welded to the square steel, the handle can be rotated into the polishing box by adjusting the components. This allows for convenient grinding of the welded surface between the handle and the square steel, enabling a seamless welding and grinding process that is more efficient.

[0015] In this invention, during the final stage of the U-shaped frame sliding and driving the right-angle plate to rotate, the two ends of the U-shaped frame respectively abut against the upper ends of the two connecting rods on both sides of the right-angle plate, driving the polishing wheel of the polishing arm below the connecting rod to move to the welding position of the handle. By extending the upper end of the connecting rod out of the welding table and positioning the upper ends of the two connecting rods on the sliding channels at both ends of the U-shaped frame, the U-shaped frame can abut against the upper end of the connecting rod during the final stroke of driving the right-angle plate to rotate. Afterward, as the U-shaped frame continues to slide and drive the right-angle plate to rotate, it can also drive the upper end of the connecting rod to swing synchronously in the same direction, causing the polishing arm located below the connecting rod to move to the welding position of the handle, after which the welding position of the handle can be easily polished. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the entire welding apparatus of the present invention; Figure 3 This is a schematic diagram of the overall structure of the welding mechanism of the present invention; Figure 4 This is a schematic diagram of the mounting structure of the right-angle plate of the present invention; Figure 5 This is a schematic diagram of the overall structure of the right-angle plate of the present invention; Figure 6 This is a side view of the right-angle plate of the present invention in the welding position; Figure 7 This is a side view of the right-angle plate of the present invention in the polishing station; Figure 8 This is an isometric view of the right-angle plate of the present invention in the polishing station; Figure 9This is a schematic diagram of the internal structure of the polishing box of the present invention.

[0018] The labels in the diagram represent: 1. Welding table; 101. Rotating through hole; 11. Fixing frame; 2. Welding mechanism; 21. Extension frame; 22. Welding arm; 23. Reinforcing plate; 24. Linear drive component; 3. Right-angle plate; 31. Rotating table; 32. Fixed table; 3201. Fixed groove; 321. Limiting block; 322. Fixed rod; 33. Rotating shaft; 34. Gear; 35. U-shaped frame; 351. Gear rack; 36. Elastic element; 361. Slide rod; 362. Limiting plate; 4. Polishing box; 41. Connecting rod; 42. Fixing plate; 43. Polishing arm; 5. Handle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to embodiments.

[0021] Example: An automatic positioning and welding device for processing intelligent door lock handles, such as... Figure 1 - Figure 9As shown, the system includes a welding table 1, on which a welding mechanism 2 is linearly slidably mounted. A linear drive component 24 for driving the welding mechanism 2 to slide is fixedly mounted on the welding table 1. A right-angle plate 3 is rotatably mounted in the middle of the welding table 1. A rotating through hole 101 is provided on the welding table 1. The right-angle plate 3 is rotatably mounted above the rotating through hole 101. A fixing frame 11 is fixedly mounted on the welding table 1. The two sides of the right-angle plate 3 are rotatably connected to the fixing frame 11. The right-angle plate 3 is used to fix a handle 5. The right-angle plate 3 includes a vertical section and a horizontal section. A rotating platform 31 is fixedly mounted on the horizontal section. A fixing platform 32 is rotatably mounted on the rotating platform 31. A drive motor is provided on the 1 to drive the fixed platform 32 to rotate. By controlling the drive motor, the fixed platform 32 can be rotated to adjust the welding position of the handle 5. The fixed platform 32 is used to fix and clamp the handle 5. The horizontal section of the right angle plate 3 can be used to install the rotating platform 31. The vertical section of the right angle plate 3 can play a certain protective role during the welding process and reduce the splashing of welding materials. The fixed frame 11 extends upward on the side away from the welding mechanism 2. The fixed frame 11 and the vertical section of the right angle plate 3 together form a welding protection space, so that the splashed welding materials fall downward as much as possible. After the right angle plate 3 rotates, these splashed welding materials fall downward from the rotating through hole 101. The fixed platform 32 is provided with a fixed groove 3201. The shape of the groove 3201 is adapted to the outer contour of the handle 5, so that the handle 5 can be stably locked inside the fixed groove 3201. A limiting block 321 for pressing the handle 5 is slidably installed inside the fixed groove 3201. A fixing rod 322 for passing through the fixed platform 32 and the limiting block 321 is provided on the side of the fixed platform 32. Through the cooperation of the limiting block 321 and the fixing rod 322, the handle 5 can be stably pressed into the fixed groove 3201, which can prevent the handle 5 from shaking during the welding process. A threaded through hole is provided on one side of the fixed platform 32. One end of the fixing rod 322 passes through the threaded through hole and is threadedly connected to the fixed platform 32. In use, the fixing rod 322 is first passed through the fixed platform 32 and the limiting block 321, and the limiting block 321 is locked inside the fixed groove 3201. Then, by rotating the fixing rod 322, the fixing rod 322 can be fixedly installed on the fixed platform 32. The welding mechanism 2 includes two extension frames 21 located on both sides of the right-angle plate 3. Each of the two extension frames 21 has a welding arm 22 mounted on one side for welding the handle 5. A welding torch is mounted at the end of each welding arm 22. The welding arm 22 adopts a common welding structure in the prior art, mainly comprising four core parts: execution end, sensor control, peripheral auxiliary components, and software. Its specific structure and working principle are not the focus of this invention and will not be elaborated upon. During the welding process of the handle 5, the lifting and mounting structure can easily move the welding arm 22 up and down. During welding, by driving the welding mechanism 2 as a whole, the welding torches on the two welding arms 22 can move on the welding surface between the handle 5 and the square steel to weld the handle 5 and the square steel. A polishing box 4 is fixedly installed below the welding table 1. The polishing box 4 is used to polish the handle 5 after welding. An adjustment component is slidably installed on the welding table 1. The adjustment component is used to drive the right-angle plate 3 to rotate, so that the handle 5 moves into the polishing box 4.

[0022] In this invention, by setting a polishing box 4 below the welding table 1 and fixing the handle 5 on the right-angle plate 3, after the handle 5 is welded to the square steel, the handle 5 on the right-angle plate 3 can be rotated into the polishing box 4 by adjusting the component to rotate the right-angle plate 3. Then, the welded surface between the handle 5 and the square steel can be easily polished. The welding and polishing of the handle 5 can be completed in a continuous manner, and the welding and polishing of the handle 5 can be completed more efficiently.

[0023] It should be noted that the vertical section of the right-angle plate 3 can provide a certain degree of protection during the welding process, reducing the splashing of welding materials; while during the polishing stage, the vertical section of the right-angle plate 3 can cover the rotating through hole 101, reducing the diffusion of grinding particles.

[0024] To smoothly drive the right-angle plate 3 to rotate, the adjustment component in this embodiment includes a U-shaped frame 35 slidably mounted on the welding table 1. The U-shaped frame 35 is located between the welding mechanism 2 and the right-angle plate 3. The two ends of the U-shaped frame 35 are distributed on both sides of the right-angle plate 3. The two ends of the U-shaped frame 35 are symmetrically fixedly mounted with toothed racks 351. A rotating shaft 33 is fixedly mounted at the corner of the right-angle plate 3. The two ends of the rotating shaft 33 pass through the fixed frame 11 and are fixedly mounted with gears 34 that mesh with the toothed racks 351. After the handle 5 is welded, by moving the U-shaped frame 35 towards the right-angle plate 3, the toothed racks 351 on the U-shaped frame 35 mesh with the gears 34, causing the gears 34 on both sides of the right-angle plate 3 to rotate clockwise, thereby causing the right-angle plate 3 to rotate as a whole. The horizontal section of the right-angle plate 3 is rotated from a horizontal state to a vertical state. At this time, the horizontal section of the right-angle plate 3 will extend into the interior of the polishing box 4. By turning on the grinding device, the welded surfaces of the handle 5 and the square steel that have just been welded can be ground.

[0025] To ensure a more continuous rotation of the right-angle plate 3 after welding, the handle on the right-angle plate 3 is directly adjusted into the polishing box 4. In this embodiment, a reinforcing plate 23 is fixedly installed between the two protruding frames 21. The reinforcing plate 23 is located on the side of the U-shaped frame 35 away from the right-angle plate 3. The reinforcing plate 23 can be used to abut against the U-shaped frame 35 when the welding mechanism 2 slides towards the right-angle plate 3, synchronously driving the U-shaped frame 35 to move. After welding is completed, the handle 5 can be continuously moved into the polishing box 4. The welding table 1 is provided with an elastic element 36 for resetting the U-shaped frame 35, and a sliding rod is fixedly installed on the welding table 1. 361, one end of the slide rod 361 passes through the U-shaped frame 35 and is slidably connected to the U-shaped frame 35. The slide rod 361 can guide the horizontal sliding of the U-shaped frame 35, making the U-shaped frame 35 more stable during the sliding process. The other end of the slide rod 361 is fixedly installed with a limiting plate 362. The limiting plate 362 is used to limit the sliding of the U-shaped frame 35 away from the right angle plate 3. The limiting plate 362 can limit the sliding position of the U-shaped frame 35, so that the elastic element 36 retains sufficient tension on the U-shaped frame 35, so that the U-shaped frame 35 can be stably maintained in its original position in the initial state, avoiding the positional displacement of the right angle plate 3 due to the sliding of the U-shaped frame 35.

[0026] To avoid interference between the right-angle plate 3 and the internal structure of the polishing box 4 during rotation, this embodiment has two sets of fixing plates 42 fixedly installed inside the polishing box 4. The two sets of fixing plates 42 are located on the lower sides of the right-angle plate 3, and each fixing plate 42 is rotatably mounted with a connecting rod 41. The middle part of the connecting rod 41 is rotatably connected to the fixing plate 42. A polishing arm 43 is fixedly mounted below each connecting rod 41. A polishing wheel is driven to be mounted at the end of the polishing arm 43. In the initial state, the polishing arm 43 hangs down with the rotational connection position of the connecting rod 41 as the axis under the action of gravity. At this time, the polishing arm 43 is offset from the horizontal section of the right-angle plate 3 and there is no interference. The two polishing arms 43 are located on the lower sides of the right-angle plate 3, and the upper part of the connecting rod 41 passes through the welding table 1 and extends out. The polishing arm 43 can be a polishing actuator commonly used in the prior art. A grinding wheel is rotatably mounted at its end. Its specific structure and working principle will not be described in detail here. The U-shaped frame 35 has protrusions on both sides facing the connecting rod 41. The upper end of the connecting rod 41 is located on the horizontal sliding channel of the U-shaped frame 35. The sliding of the U-shaped frame 35 drives the right angle plate 3 to rotate. The protrusions on both sides of the U-shaped frame 35 abut against the upper ends of the two connecting rods 41 on both sides of the right angle plate 3, driving the polishing wheel of the polishing arm 43 below the connecting rod 41 to move to the welding position of the handle 5. By making the upper end of the connecting rod 41 extend out of the welding table 1 and making the upper ends of the two connecting rods 41 located on the sliding channels at both ends of the U-shaped frame 35, the U-shaped frame 35 can abut against the upper end of the connecting rod 41 in the last stroke of driving the right angle plate 3 to rotate (at this time, the horizontal section of the right angle plate 3 has rotated past the position of the polishing arm 43). Afterwards, as the U-shaped frame 35 continues to slide and drive the right angle plate 3 to rotate, it can also drive the upper end of the connecting rod 41 to swing synchronously in the same direction, so that the polishing arm 43 located below the connecting rod 41 moves to the welding position of the handle 5, and then the welding position of the handle 5 can be easily polished.

[0027] The specific working principle is as follows: When it is necessary to weld the handle 5, the handle 5 is first inserted into the fixing groove 3201 of the fixing platform 32, and the limiting block 321 is driven by the screw-in fixing rod 322 to press and fix it; during welding, the linear drive component 24 drives the entire welding mechanism 2 to slide along the welding platform 1, so that the welding arms 22 on the two extension frames 21 drive the welding gun to weld the handle 5 and the square steel welding surface.

[0028] After welding is completed, the device automatically switches to the polishing stage. The linear drive 24 continues to drive the welding mechanism 2 to move, so that the reinforcing plate 23 on the welding mechanism 2 abuts against and pushes the U-shaped frame 35, which is slidably mounted on the welding table 1, to slide towards the right-angle plate 3. The toothed racks 351 at both ends of the U-shaped frame 35 then mesh with the gears 34 fixedly mounted on the rotating shaft 33 of the right-angle plate 3, converting the linear motion of the U-shaped frame 35 into the rotational motion of the gears 34, thereby driving the right-angle plate 3 to rotate 90° with the welded handle 5 as a whole, so that its horizontal section and the handle 5 fixed on it are moved from the horizontal welding position to the vertical direction and enter the polishing box 4 below.

[0029] The U-shaped frame 35 continues to slide forward, with its two protrusions abutting against the upper ends of the two connecting rods 41 inside the polishing box 4. As the U-shaped frame 35 continues to move forward, it pushes the upper ends of the two connecting rods 41 to swing to both sides; the middle part of the connecting rods 41 is rotatably connected to the fixed plate 42, and the polishing arm 43 fixedly installed below it moves towards the handle 5, so that the polishing wheel is precisely moved to both sides of the weld seam of the handle 5, which has been rotated into place, to polish the weld seam on the handle 5. The fixed table 32 is driven by a motor to rotate so that the polishing position of the handle 5 can be adjusted at any time, so that the weld seam is thoroughly processed.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic positioning welding device for processing intelligent door lock handles, comprising a welding table (1), a welding mechanism (2) linearly slidably mounted on the welding table (1), and a linear drive component (24) for driving the welding mechanism (2) to slide fixedly mounted on the welding table (1), characterized in that, A right-angle plate (3) is rotatably mounted in the middle of the welding table (1), and the right-angle plate (3) is used to fix the handle (5). The welding mechanism (2) includes two extension frames (21) located on both sides of the right angle plate (3), and a welding arm (22) for welding the handle (5) is installed on one side of each extension frame (21). Among them, a polishing box (4) is fixedly installed below the welding table (1). The polishing box (4) is used to polish the handle (5) after welding. An adjustment component is slidably installed on the welding table (1). The adjustment component is used to drive the right angle plate (3) to rotate, so that the handle (5) moves into the polishing box (4).

2. The automatic positioning and welding device for processing intelligent door lock handles according to claim 1, characterized in that, The adjustment assembly includes a U-shaped frame (35) that is slidably mounted on the welding table (1). The U-shaped frame (35) is located between the welding mechanism (2) and the right angle plate (3). The two ends of the U-shaped frame (35) are distributed on both sides of the right angle plate (3). The two ends of the U-shaped frame (35) are symmetrically fixedly mounted with toothed racks (351). A rotating shaft (33) is fixedly mounted at the corner of the right angle plate (3). A gear (34) that meshes with the toothed rack (351) is fixedly mounted on the rotating shaft (33).

3. The automatic positioning and welding device for processing intelligent door lock handles according to claim 2, characterized in that, A reinforcing plate (23) is fixedly installed between the two extension frames (21). The reinforcing plate (23) is located on the side of the U-shaped frame (35) away from the right angle plate (3). The reinforcing plate (23) can be used to abut against the U-shaped frame (35) when the welding mechanism (2) slides towards the right angle plate (3), and synchronously drive the U-shaped frame (35) to move. An elastic element (36) is provided on the welding table (1) for driving the U-shaped frame (35) to reset.

4. The automatic positioning and welding device for processing intelligent door lock handles according to claim 3, characterized in that, The polishing box (4) is fixedly installed with two sets of fixing plates (42). The two sets of fixing plates (42) are located on the two sides below the right angle plate (3). A connecting rod (41) is rotatably installed on each fixing plate (42). A polishing arm (43) is fixedly installed below each connecting rod (41). The two polishing arms (43) are located on the two sides below the right angle plate (3). The connecting rod (41) passes through the welding table (1) and extends out.

5. The automatic positioning and welding device for processing intelligent door lock handles according to claim 4, characterized in that, The U-shaped frame (35) has protrusions on both sides facing the connecting rod (41). The upper end of the connecting rod (41) is located on the horizontal sliding channel of the U-shaped frame (35). The sliding of the U-shaped frame (35) drives the right angle plate (3) to rotate. The protrusions on both sides of the U-shaped frame (35) abut against the upper ends of the two connecting rods (41) on both sides of the right angle plate (3), driving the polishing wheel of the polishing arm (43) below the connecting rod (41) to move to the welding position of the handle (5).

6. The automatic positioning and welding device for processing intelligent door lock handles according to claim 5, characterized in that, A slide rod (361) is fixedly installed on the welding table (1). One end of the slide rod (361) passes through the U-shaped frame (35) and is slidably connected to the U-shaped frame (35). A limit plate (362) is fixedly installed on the other end of the slide rod (361). The limit plate (362) is used to restrict the U-shaped frame (35) from sliding away from the right angle plate (3).

7. The automatic positioning and welding device for processing intelligent door lock handles according to claim 1, characterized in that, The right-angle plate (3) includes a vertical section and a horizontal section. A rotating platform (31) is fixedly installed on the horizontal section. A fixed platform (32) is rotatably installed on the rotating platform (31). A drive motor for driving the fixed platform (32) to rotate is provided on the rotating platform (31). The fixed platform (32) is used to fix the clamping handle (5).

8. The automatic positioning and welding device for processing intelligent door lock handles according to claim 7, characterized in that, The fixed platform (32) is provided with a fixed groove (3201). The groove shape of the fixed groove (3201) is adapted to the outer contour of the handle (5). A limiting block (321) for pressing the handle (5) is slidably installed inside the fixed groove (3201). A fixing rod (322) for passing through the fixed platform (32) and the limiting block (321) is provided on the side of the fixed platform (32).

9. An automatic positioning and welding device for processing intelligent door lock handles according to claim 8, characterized in that, A threaded through hole is provided on one side of the fixed platform (32), and one end of the fixed rod (322) passes through the threaded through hole and is threadedly connected to the fixed platform (32).

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