A hinge pin shaft non-interval assembly operation processing device

Abstract

The present application relates to the hinge processing field, disclose a kind of hinge pin shaft non-interval assembly operation processing device, including workbench, the top of the workbench is fixedly connected with fixed frame, the outer diameter of the both sides of positioning cylinder is movably connected with carousel, the inside end of two carousel is connected by multiple connecting rods, the side of the fixed frame is equipped with driving assembly, the other side of the fixed frame is equipped with calibration assembly, the top rear side of the workbench is equipped with pin shaft feeding mechanism, the top side of the workbench is equipped with test mechanism.The present application is fixed after two pieces of hinge are placed into the feeding groove in the slide of both sides by staff, with rotating carousel, in turn, the butt joint hole calibration of hinge, pin shaft assembly and end welding fixed work, easy to operate, assembly quality is high, degree of automation is high, four-station non-interval cycle assembly operation is used, greatly improve assembly efficiency, bring convenience to enterprise production.

Description

Technical Field

[0001] This invention relates to the field of hinge processing, specifically to a hinge pin assembly processing device without gaps. Background Technology

[0002] A hinge is a mechanical device used to connect two solid objects and allow relative rotation between them. Hinges can consist of movable components or be made of foldable materials. Hinges are most commonly installed on cabinets and are mainly classified by material into stainless steel hinges and iron hinges. To provide a better user experience, hydraulic hinges (also known as damping hinges) have emerged. Their characteristic is that they provide a buffer function when the cabinet door closes, minimizing the noise generated by the door colliding with the cabinet body.

[0003] The hinge mainly consists of two hinges and a central pin. During production, they are usually processed separately and then assembled at the end. Currently, the assembly of the pin is mostly done manually. The pin is inserted into the mating hole of the hinge and then fixed at the end by welding or hammering. This process is not only time-consuming and labor-intensive, but also inefficient and produces poor assembly quality. It is also inconvenient to perform real-time inspection after assembly, which affects the quality of the finished product. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a hinge pin assembly processing device without gaps, which solves the problems that manual assembly of hinge pins is not only time-consuming and labor-intensive, but also inefficient and of poor quality. Furthermore, it is inconvenient to perform real-time inspection after assembly, which affects the quality of the final product.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hinge pin assembly processing device without gaps, comprising a worktable, a fixed frame fixedly connected to the top of the worktable, a positioning cylinder fixedly connected to the middle of the fixed frame, turntables movably connected to the outer diameters of both sides of the positioning cylinder, the inner ends of the two turntables being connected by multiple connecting rods, four telescopic cylinders installed between the inner and outer diameters of the outer ends of the turntables, the driving ends of the telescopic cylinders penetrating the inner wall of the corresponding side of the turntable and fixedly connected to a slide, a material feeding groove provided on the inner side of the upper surface of the slide, a positioning magnetic sheet fixedly connected inside the material feeding groove, a driving component provided on one side of the fixed frame, a calibration component provided on the other side of the fixed frame, a pin feeding mechanism provided on the rear side of the top of the worktable, and a testing mechanism provided on one side of the top of the worktable.

[0006] Preferably, the upper surface of the slide is threaded with a positioning knob, the inner end of the turntable is provided with a guide rail on the side near the slide, and the bottom end of the slide is movably connected to the top of the corresponding guide rail.

[0007] Preferably, the drive assembly includes a servo motor, which is mounted on one side of the top of the fixed frame. A drive gear is installed on the drive end of the servo motor, and an internal gear is fixedly connected to one end of the turntable near the servo motor. The drive gear meshes with the inner end of the internal gear.

[0008] Preferably, the calibration component includes a bending rod, the bottom end of which is fixedly connected to the top of the fixing frame, an industrial camera is mounted on the end of the bending rod, and a marker is fixedly connected to the top center of the positioning cylinder.

[0009] Preferably, a first laser welding gun is installed at the middle of the rear end of the positioning cylinder, and a second laser welding gun is installed at the middle of the top end of the worktable.

[0010] Preferably, the pin feeding mechanism includes a positioning frame, which is fixedly connected to the rear top of the worktable. A horizontal plate is fixedly connected to the top of the positioning frame, and a pushing cylinder is installed on the rear top of the horizontal plate. A pushing rod is fixedly connected to the driving end of the pushing cylinder, and a magnetic block is fixedly connected to the end of the pushing rod. A pin material box is fixedly connected to the front top of the horizontal plate, and through holes are provided on both sides of the bottom of the pin material box.

[0011] Preferably, the testing mechanism includes a support frame, the bottom end of which is bolted to the surface of the workbench. A rotating shaft is movably connected to the inner center of the support frame, and a U-shaped rod is fixedly connected to the bottom end of the rotating shaft. A stepper motor is installed at the bottom end of the workbench near the support frame. The drive end of the stepper motor passes through the interior of the workbench and is fixedly connected to one side of the inner side of the straight plate. A short shaft is movably connected to the other side of the inner side of the straight plate. A collar is fixedly connected to the top end of the short shaft. The inner side of the collar is movably connected to the lower outer diameter of the U-shaped rod. A lever is fixedly connected to the top center of the rotating shaft. Several positioning magnetic plates are fixedly connected to the top of the support frame.

[0012] Preferably, a control panel is installed on the other side of the top of the workbench, and support legs are fixedly connected to the four corners of the bottom of the workbench.

[0013] Working Principle: First, the operator places the left and right hinges into the feed slots of the left and right carriages respectively, using positioning magnetic plates for initial positioning and fixation. Then, the positioning knob is rotated 90 degrees to secure the hinges. At this point, the telescopic cylinder drives the internal piston rod to extend, moving the two carriages inward and aligning the pin holes of the two hinges. Next, the servo motor is activated, driving the drive gear to rotate, which in turn rotates the internal gear and the right turntable 90 degrees. As the right turntable rotates, it drives the left turntable to rotate synchronously via the connecting rod, transferring the two hinges to the top. At this point, the industrial camera is turned on, capturing the marker mark on the top of the positioning cylinder through the pin holes of the two hinges. When a complete marker mark is captured, the surface is perfectly aligned. If the captured marker mark is incomplete, the telescopic cylinder is used to adjust the position of the two hinges until a complete marker mark is captured. After calibration, the servo motor controls the turntable to rotate 90 degrees again. At this time, the pusher cylinder pushes the pusher rod forward, and the end of the pusher rod... The magnetic block attracts the bottom pin in the pin box and pushes it out through the through hole until the pin is fully inserted into the pin mating holes of the two hinges. At this point, the first laser welding gun welds the rear end connection of the hinge, completing the fixing of one end of the hinge. The pusher cylinder controls the pusher rod to reset, and the servo motor controls the turntable to rotate 90 degrees again, bringing the hinge to the bottom of the turntable. Then, the second laser welding gun welds and fixes the other end of the hinge. Finally, the servo motor controls the turntable to rotate 90 degrees again, and the assembled hinge returns to the operator's face. Beforehand, the staff resets the positioning knob, removes the hinge, and then replaces it with a new one. This process is repeated to complete the efficient assembly of the pin shaft without gaps. The staff then places one side of the removed hinge on the positioning magnetic plate for fixation. Next, the stepper motor is started, which drives the straight plate to rotate, causing the short shaft and collar to rotate as well. As the collar rotates, it slides on the U-shaped rod, causing the U-shaped rod to swing back and forth. This, in turn, causes the rotating shaft and the lever to swing in a cycle. The swinging lever moves the hinge back and forth, thus completing the assembly and inspection of the hinge.

[0014] This invention provides a hinge pin assembly machining device without gaps. It has the following beneficial effects:

[0015] 1. This invention involves workers placing two hinge pieces into the material slots in the side carriages and fixing them in place. Then, with the rotating turntable, the hinges are sequentially calibrated for the mating holes, assembled for the pins, and welded to the ends. The operation is simple, the assembly quality is high, and the degree of automation is high. It adopts a four-station, non-interrupted cyclic assembly operation, which greatly improves the assembly efficiency and brings convenience to enterprise production.

[0016] 2. By adding a testing mechanism to one side of the workbench, the present invention can fix one end of the assembled hinge and move the hinge back and forth through a reciprocating paddle at the other end, thereby realizing the assembly and testing of the hinge. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view at point B in the middle;

[0020] Figure 4 This is a rear perspective view of the present invention;

[0021] Figure 5 for Figure 4 Enlarged view at point C;

[0022] Figure 6 This is a schematic diagram of the testing mechanism in this invention.

[0023] The components include: 1. Workbench; 2. Fixing frame; 3. Positioning cylinder; 4. Turntable; 5. Telescopic cylinder; 6. Slide; 7. Feed chute; 8. Positioning magnetic plate; 9. Positioning knob; 10. Guide rail; 11. Servo motor; 12. Drive gear; 13. Internal gear; 14. Connecting rod; 15. Bending rod; 16. Industrial camera; 17. Marking point; 18. First laser welding gun; 19. Second laser welding gun; 20. Control panel; 21. Support leg; 22. Pin shaft feeding mechanism; 23. Positioning frame; 24. Horizontal plate; 25. Pushing cylinder; 26. Pushing rod; 27. Magnetic block; 28. Pin shaft material box; 29. ​​Through hole; 30. Testing mechanism; 31. Bracket; 32. Rotating shaft; 33. U-shaped rod; 34. Stepper motor; 35. Straight plate; 36. Short shaft; 37. Collar; 38. Paddle; 39. Positioning magnetic plate. Detailed Implementation

[0024] The technical solutions in 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see the appendix Figure 1 - Appendix Figure 6This invention provides a hinge pin assembly processing device without gaps, including a worktable 1. A fixed frame 2, shaped like an inverted U, is fixedly connected to the top of the worktable 1 for connection and fixation. A positioning cylinder 3 is fixedly connected to the middle of the fixed frame 2. The positioning cylinder 3 cannot rotate and is fixedly connected to the outer diameter of the middle part of the fixed frame 2. Turntables 4 are movably connected to the outer diameters of both sides of the positioning cylinder 3. The inner ends of the two turntables 4 are connected by multiple connecting rods 14. The middle part of the turntables 4 is connected to the outer diameters of both sides of the positioning cylinder 3 through bearing seats. The connection of the connecting rods 14 enables the two turntables 4 to rotate synchronously. Four telescopic cylinders 5 are installed between the inner and outer diameters of the outer ends of the turntables 4. The drive end of the telescopic cylinder 5 passes through the inner wall of the corresponding side turntable 4 and is fixedly connected to the slide 6. The telescopic cylinder 5 drives the slide 6 to move left and right, which facilitates the adjustment of the hinge position. The upper surface of the slide 6 is provided with a feeding groove 7. The inside of the feeding groove 7 is fixedly connected with a positioning magnetic sheet 8 for adsorbing and fixing the hinge. One side of the fixing frame 2 is provided with a drive component for driving the turntable 4 to rotate. The other side of the fixing frame 2 is provided with a calibration component for calibrating the mating holes of the two hinges. The top rear side of the worktable 1 is provided with a pin feeding mechanism 22 for feeding pins. The top side of the worktable 1 is provided with a testing mechanism 30 for testing the assembled hinge.

[0026] Specifically, the workers first place the left and right hinges of the hinge into the material slots 7 of the left and right slides 6 respectively, and use the positioning magnetic piece 8 for initial positioning and fixation. Then, the positioning knob 9 is rotated 90 degrees to fix the hinges. At this time, the telescopic cylinder 5 drives the internal piston rod to extend, which drives the two slides 6 to move inward and aligns the pin docking holes of the two hinges, which facilitates the subsequent calibration and pin assembly work.

[0027] In this embodiment, the upper surface of the slide 6 is threaded with a positioning knob 9. When the positioning knob 9 is rotated, the positioning knob 9 will descend, thereby pressing and fixing the hinge. The inner side of the turntable 4 is provided with a guide rail 10 on the side near the slide 6. The bottom end of the slide 6 is movably connected to the top of the corresponding side guide rail 10, which improves the stability of the slide 6 when it slides.

[0028] Furthermore, the drive assembly includes a servo motor 11, which is mounted on one side of the top of the fixed frame 2. The drive end of the servo motor 11 is equipped with a drive gear 12, and an internal gear 13 is fixedly connected to one end of the turntable 4 near the servo motor 11. The drive gear 12 and the inner end of the internal gear 13 are meshed and connected to facilitate motion transmission.

[0029] Specifically, the servo motor 11 drives the drive gear 12 to rotate, which in turn drives the internal gear 13 and the right turntable 4 to rotate 90 degrees. When the right turntable 4 rotates, it drives the left turntable 4 to rotate synchronously through the connecting rod 14. Using the chuck of the rotating 4, the hinge is moved to the top for calibration, then the rear pin is assembled, the bottom is welded and fixed, and the front is retracted.

[0030] Furthermore, the calibration assembly includes a bending rod 15, the bottom end of which is fixedly connected to the top of the mounting bracket 2, and the end of which extends directly above the positioning cylinder 3. An industrial camera 16 is mounted on the end of the bending rod 15, and a marker mark 17 is fixedly connected to the top center of the positioning cylinder 3. The position of the mating holes of the two hinges is confirmed by scanning the marker mark 17 with the industrial camera 16.

[0031] Specifically, when the two hinges are moved above the turntable 4, the industrial camera 16 is turned on. The industrial camera 16 captures the mark 17 on the top of the positioning cylinder 3 through the pin docking holes of the two hinges. When the complete mark 17 is captured, the surface is now perfectly aligned. If the captured mark 17 is incomplete, the position of the two hinges is adjusted by the telescopic cylinder 5 until the complete mark 17 can be captured.

[0032] Furthermore, a first laser welding gun 18 is installed at the middle of the rear end of the positioning cylinder 3, and a second laser welding gun 19 is installed at the middle of the top of the worktable 1. The front and rear ends are fixed after the hinge and pin are assembled by the two laser welding guns.

[0033] Furthermore, the pin feeding mechanism 22 includes a positioning frame 23, which is fixedly connected to the rear top of the workbench 1 for connection and fixation. A horizontal plate 24 is fixedly connected to the top of the positioning frame 23 for connection and installation. A pusher cylinder 25 is installed on the rear top of the horizontal plate 24. A pusher rod 26 is fixedly connected to the drive end of the pusher cylinder 25. The pusher cylinder 25 can push the pusher rod 26 back and forth. A magnetic block 27 is fixedly connected to the end of the pusher rod 26. The magnetic block 27 will attract one end of the pin to improve the stability of the pushing process. A pin box 28 is fixedly connected to the front top of the horizontal plate 24, which contains pins. The bottom two sides of the pin box 28 are provided with through holes 29 to facilitate the pushing out of the pins and the retrieval of the pusher rod 26.

[0034] Specifically, after the calibration is completed, the servo motor 11 controls the turntable 4 to rotate 90 degrees again. At this time, the pusher cylinder 25 pushes the pusher rod 26 forward. The magnetic block 27 at the end of the pusher rod 26 will attract the bottom pin in the pin box 28 and continue to push it out from the through hole 29 until the pin is completely inserted into the pin mating holes of the two hinges. After the first laser welding gun 18 completes the end welding work, the pusher cylinder 25 controls the pusher rod 26 to reset. At this time, the next pin in the pin box 28 will return to the bottom of the pin box 28 due to gravity, which facilitates the next assembly work.

[0035] Furthermore, the testing mechanism 30 includes a support 31, shaped like a gantry frame. The bottom end of the support 31 is bolted to the surface of the workbench 1. A rotating shaft 32 is movably connected to the center of the support 31, with both ends mounted in the center of the support 31 via bearing seats. A U-shaped rod 33 is fixedly connected to the bottom end of the rotating shaft 32, with both ends fixed to the ends of the rotating shaft 32. A stepper motor 34 is installed at the bottom end of the workbench 1 near the support 31. The drive end of the stepper motor 34 penetrates the interior of the workbench 1 and is fixedly connected to the interior of the straight plate 35. On one side, a short shaft 36 is movably connected to the other side of the straight plate 35. The short shaft 36 passes through the interior of the straight plate 35. A collar 37 is fixedly connected to the top of the short shaft 36. The collar 37 is movably connected to the lower outer diameter of the U-shaped rod 33. The collar 37 can slide left and right along the U-shaped rod 33, thereby causing the U-shaped rod 33 to swing. A lever 38 is fixedly connected to the middle of the top of the pivot 32 for moving the lower half of the hinge. Several positioning magnetic plates 39 are fixedly connected to the top of the bracket 31 for fixing the upper half of the hinge.

[0036] Specifically, the staff places one side of the removed hinge on the positioning magnetic plate 39 for fixation, and then starts the stepper motor 34. The stepper motor 34 drives the straight plate 35 to rotate, which in turn drives the short shaft 36 and the collar 37 to rotate. When the collar 37 rotates, it slides on the U-shaped rod 33, which causes the U-shaped rod 33 to swing back and forth, thereby causing the rotating shaft 32 and the lever 38 to swing cyclically. The swinging lever 38 moves the hinge back and forth, realizing the assembly and testing of the hinge.

[0037] Furthermore, a control panel 20 is installed on the other side of the top of the workbench 1, which is the control center of the entire equipment. Support legs 21 are fixedly connected to the four corners of the bottom of the workbench 1 for support and fixation.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hinge pin assembly and processing device without gaps, comprising a worktable (1), characterized in that, A fixed frame (2) is fixedly connected to the top of the workbench (1), and a positioning cylinder (3) is fixedly connected to the middle of the fixed frame (2). Turntables (4) are movably connected to the outer diameters of both sides of the positioning cylinder (3). The inner ends of the two turntables (4) are connected by multiple connecting rods (14). Four telescopic cylinders (5) are installed between the inner and outer diameters of the outer ends of the turntables (4). The driving ends of the telescopic cylinders (5) penetrate the inner wall of the corresponding turntables (4) and are fixedly connected to a slide (6). The inner side of the upper surface of the slide (6) is provided with a feeding groove (7). The material feeding trough (7) is fixedly connected with positioning magnetic sheets (8), which are used to adsorb and fix the hinges. One side of the fixing frame (2) is provided with a driving component for driving the turntable (4) to rotate. The other side of the fixing frame (2) is provided with a calibration component for calibrating the mating holes of the two hinges. The top rear side of the workbench (1) is provided with a pin feeding mechanism (22). One side of the top of the workbench (1) is provided with a testing mechanism (30), which is used to test the assembled hinges. The drive assembly includes a servo motor (11), which is mounted on one side of the top of the fixed frame (2). The drive end of the servo motor (11) is equipped with a drive gear (12). One side of the turntable (4) is fixedly connected to an internal gear (13) near the servo motor (11). The drive gear (12) meshes with the inner end of the internal gear (13). The calibration assembly includes a bending rod (15), the bottom end of which is fixedly connected to the top of the fixing frame (2), an industrial camera (16) is installed at the end of the bending rod (15), and a marker (17) is fixedly connected to the top center of the positioning cylinder (3). The first laser welding gun (18) is installed at the middle of the rear end of the positioning cylinder (3), and the second laser welding gun (19) is installed at the middle of the top end of the worktable (1). The pin feeding mechanism (22) includes a positioning frame (23), which is fixedly connected to the rear top of the workbench (1). A horizontal plate (24) is fixedly connected to the top of the positioning frame (23). A pusher cylinder (25) is installed on the rear top of the horizontal plate (24). A pusher rod (26) is fixedly connected to the drive end of the pusher cylinder (25). A magnetic block (27) is fixedly connected to the end of the pusher rod (26). A pin box (28) is fixedly connected to the front top of the horizontal plate (24). Through holes (29) are provided on both sides of the bottom of the pin box (28). The testing mechanism (30) includes a bracket (31), the bottom end of which is bolted to the surface of the workbench (1). A rotating shaft (32) is movably connected to the inner center of the bracket (31). A U-shaped rod (33) is fixedly connected to the bottom end of the rotating shaft (32). A stepper motor (34) is installed at the bottom end of the workbench (1) near the bracket (31). The driving end of the stepper motor (34) passes through the interior of the workbench (1) and is fixedly connected to one side of the interior of the straight plate (35). A short shaft (36) is movably connected to the other side of the interior of the straight plate (35). A collar (37) is fixedly connected to the top end of the short shaft (36). The inside of the collar (37) is movably connected to the lower outer diameter of the U-shaped rod (33). A paddle (38) is fixedly connected to the middle of the top end of the rotating shaft (32). Several positioning magnetic plates (39) are fixedly connected to the top of the bracket (31).

2. The hinge pin assembly and processing device according to claim 1, characterized in that, The upper surface of the slide (6) is threaded with a positioning knob (9), and the inner end of the turntable (4) is provided with a guide rail (10) on the side close to the slide (6). The bottom end of the slide (6) is movably connected to the top of the guide rail (10) on the corresponding side.

3. The hinge pin assembly and processing device according to claim 1, characterized in that, A control panel (20) is installed on the other side of the top of the workbench (1), and support legs (21) are fixedly connected to the four corners of the bottom of the workbench (1).

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