Assembly device and method for installing assembled cabinet

Abstract

The present invention relates to the field of robotic arm technology, and specifically discloses an assembly device and method for installing an assembled cabinet, comprising: a robotic arm, a mainboard, a slide rail, a lifting assembly, a mounting seat, an electric screwdriver, a fastening mechanism, a feeding mechanism, and screws; the mainboard is disposed at the front top of the robotic arm, and a visual sensor is disposed at the bottom of the mainboard; there are two slide rails, which are disposed at the left and right ends of the front side of the mainboard, respectively. This device effectively avoids the problem of excessive screw rotation caused by the high-speed rotation inertia of the electric screwdriver and the response delay of the control system in traditional robotic arms, significantly improves assembly accuracy and connection reliability, and reduces quality risks caused by loose screws, deformation of plates, etc.; at the same time, the additional automatic screw feeding device greatly shortens the robotic arm's material picking stroke and time cost, realizes continuous and efficient supply of screws, and significantly improves overall production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of robotic arms, and in particular to an assembly device and method for installing an assembled cabinet. Background Art

[0002] In the furniture manufacturing sector, prefabricated cabinets, with their unique design advantages, have become an indispensable component of the modern home furnishing industry. Prefabricated cabinets adopt a modular design concept, the core of which is to disassemble the overall cabinet structure into multiple independent components, such as top panels, bottom panels, side panels, back panels, drawers, and door panels. After initial processing in the factory, these components are individually packaged and clearly labeled with component names and installation locations, greatly facilitating subsequent transportation and storage. This design not only significantly reduces transportation costs but also improves space utilization, making prefabricated cabinets occupy an important position in the e-commerce and customized home furnishing markets.

[0003] In industrialized production processes, to ensure the processing quality of parts, factories usually perform pre-assembly after completing the production of each component. The core goal of this process is to systematically verify the manufacturing accuracy of parts, covering dimensional accuracy, shape accuracy, and the coordination between components. Pre-assembly can promptly identify potential defects or errors in the processing process, such as structural looseness caused by dimensional deviations and assembly difficulties caused by irregular shapes. This proactive quality control mechanism can effectively prevent defective products from entering the subsequent production links or the hands of end customers, thereby reducing after-sales maintenance costs, reducing return and exchange disputes, and maintaining brand reputation.

[0004] At present, in order to improve work efficiency, many manufacturers generally use robotic arms to perform automatic screw tightening operations during the pre-assembly of assembly cabinets. However, traditional robotic arms for assembly of assembly cabinets still have some problems that need to be solved in practical applications;

[0005] First, during the screw tightening process, traditional assembly cabinet assembly robotic arms usually use torque sensors to detect torque to monitor whether the screws are tightened in place. However, due to the high rotation speed of the output end of the electric screwdriver, over-rotation of the screws is very likely to occur. This is because when the electric screwdriver rotates at a high speed, the entire system (including the electric screwdriver, connecting components, and screws, etc.) has a certain inertia. Once the torque reaches the set value, the electric screwdriver stops outputting power, but due to inertia, the screw may continue to rotate a short distance, resulting in over-rotation of the screw. In addition, from the time the torque sensor detects that the torque has reached the set value to the time the electric screwdriver actually stops rotating, the control system requires a certain response time. Under high-speed rotation, the screw may rotate an additional angle during this period. If the response time of the control system is long, the possibility of over-rotation of the screw will increase significantly. Over-rotation of the screw will not only affect the assembly quality, but may also cause problems such as loose screws, loose component connections, deformation and cracking of panels, thereby affecting the overall stability and service life of the assembled cabinet.

[0006] Secondly, the traditional assembly cabinet assembly robot arm is not equipped with an automatic screw loading device. As a result, after completing the tightening operation of one screw, if the robot arm needs to continue tightening the next screw, it must move to the screw tray to pick up the screw and then perform the tightening operation. This operation method not only reduces work efficiency, but also increases the movement range and time cost of the robot arm, affecting the smoothness and efficiency of the entire assembly process. Summary of the Invention

[0007] The object of the present invention is to provide an assembly device and method for installing an assembled cabinet, so as to solve the problems in the prior art of affecting the service life and low working efficiency of the assembled cabinet.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an assembly device for installing an assembled cabinet, comprising: a mechanical arm, a main board, a slide rail, a lifting assembly, a mounting seat, an electric screwdriver, a fastening mechanism, a feeding mechanism and screws; the main board is arranged at the front top end of the mechanical arm, and the bottom end of the main board is provided with a visual sensor; the number of the slide rails is two, and the two slide rails are respectively arranged at the left and right ends of the front side of the main board; the lifting assembly is arranged at the middle of the front side of the main board; the left and right ends of the rear side of the mounting seat can be slidably adapted to be connected to the top ends of the outer walls of the two slide rails, the mounting seat is sleeved on the outer wall of the lifting assembly, and the lifting assembly can be used to drive the mounting seat to slide up and down along the outer wall of the slide rail; the electric screwdriver is detachably arranged in the inner cavity of the mounting seat; the fastening mechanism is arranged at the bottom end of the electric screwdriver; the feeding mechanism is arranged at the front bottom end of the main board; the number of the screws is several, and the several screws can be slidably adapted to be inserted into the inner cavity of the feeding mechanism.

[0009] Preferably, the fastening mechanism includes: a drive seat, a slot, a connecting seat, an extrusion groove, a signal component, a torque adjustment component and a screwdriver; the drive seat, the drive seat is arranged at the bottom end of the electric screwdriver, and the outer wall of the drive seat is provided with a plurality of slots equidistantly along the circumference; the drive seat is embedded in the inner cavity of the connecting seat, and the top end of the connecting seat is rotatably sleeved on the top end of the outer wall of the drive seat through a bearing, and the inner wall of the connecting seat is provided with a plurality of extrusion grooves equidistantly along the circumference, and the positions of the plurality of extrusion grooves and the plurality of slots correspond one to one; the signal component is arranged in the inner cavity of the connecting seat, and the signal component can be used to monitor the rotation of the screw into position; the torque adjustment component is arranged in the inner cavity of the extrusion groove, and the torque applied to the screw can be adjusted by using the torque adjustment component; the screwdriver is arranged in the middle of the bottom end of the connecting seat, and the center of the screwdriver, connecting seat, drive seat and output end of the electric screwdriver are the same.

[0010] Preferably, the torque adjustment assembly includes: a synchronous drive assembly, a second screw, a slide groove, a push plate, a second spring and a clamping ball; the synchronous drive assembly is arranged on the outer wall of the connecting seat; the number of the second screws is several, and the outer walls of several second screws are respectively screwed to the outside of the inner cavity of several extrusion grooves, and the outer end of the second screw can be rotatably extended out of the inner cavity of the extrusion groove, and the outer wall of the second screw is equidistant along the circumference, and the synchronous drive assembly can drive several second screws to rotate synchronously; the push plate is rotatably arranged at the inner end of the second screw through a bearing, and the push plate can be slidably adapted and inserted into the outside of the inner cavity of the extrusion groove; the second spring is embedded in the inner cavity of the extrusion groove, and one end of the second spring is clamped on the inner side of the push plate; a part of the clamping ball is embedded in the inner cavity of the extrusion groove, and the other part of the clamping ball is adapted and inserted into the inner cavity of the clamping groove corresponding to its position, and the other end of the second spring is clamped on the outer wall of the clamping ball.

[0011] Preferably, the length of the card ball extending into the inner cavity of the card slot is smaller than its radius.

[0012] Preferably, the synchronous drive assembly includes: a support seat, a sleeve, a slider, a driven bevel gear and an active bevel gear; the number of the support seats is several, and the support seats are equidistantly arranged on the outer wall of the connecting seat along the circumferential direction; the inner and outer ends of the outer wall of the sleeve are rotatably inserted into the inner cavity of the support seat through bearings, and the sleeve is slidably sleeved on the outer wall of the second screw; the number of the sliders is several, and the sliders are equidistantly arranged on the inner wall of the sleeve along the circumferential direction, and the sliders are slidably adapted to be inserted into the inner cavity of the slide groove corresponding to their positions; the driven bevel gear is sleeved on the middle of the outer wall of the sleeve and locked by a top screw; the active bevel gear is rotatably sleeved on the bottom end of the outer wall of the connecting seat through a bearing, and the active bevel gear and several driven bevel gears are meshed.

[0013] Preferably, the signal component includes: a rotating rod, a cam, a guide rod, an extrusion seat, a roller, a first spring and a button switch; the top of the rotating rod is arranged in the middle of the bottom end of the driving seat, and the bottom end of the rotating rod is rotatably arranged in the middle of the bottom end of the inner cavity of the connecting seat through a bearing; the cam is sleeved on the middle of the outer wall of the rotating rod and locked; the number of the guide rods is two, and the two guide rods are arranged from top to bottom at the bottom end of the rear side of the inner wall of the connecting seat; the rear sides of the upper and lower ends of the extrusion seat are slidably sleeved on the front sides of the outer walls of the two guide rods; the roller is rotatably arranged at the front end of the extrusion seat, and the outer wall of the roller contacts the outer wall of the cam; the first spring is sleeved on the outer wall of the guide rod, one end of the first spring is clamped on the outer wall of the extrusion seat, and the other end of the first spring is clamped on the inner wall of the connecting seat; the button switch is arranged at the bottom end of the rear side of the inner wall of the connecting seat, the position of the button switch corresponds to the position of the extrusion seat, and the button switch is electrically connected to the robotic arm and the electric screwdriver.

[0014] Preferably, the feeding mechanism includes: a positioning cylinder, a feeding cylinder, a blocking groove, a feeding tube, a rubber support sleeve and a blocking component; the positioning cylinder is arranged at the bottom end of the front side of the main board, and the bottom end of the outer wall of the screwdriver can be slidably adapted and inserted into the top end of the inner cavity of the positioning cylinder, and the inner cavity length of the positioning cylinder is smaller than the length of the screwdriver; the feeding cylinder is arranged on the right side of the outer wall of the positioning cylinder, the inner cavity of the feeding cylinder and the inner cavity of the positioning cylinder are communicated, the screw can be slidably adapted and inserted into the inner cavity of the feeding cylinder, and two blocking grooves are provided on the right side of the outer wall of the feeding cylinder; one end of the feeding tube is sleeved on the top end of the outer wall of the feeding cylinder; the rubber support sleeve is detachably arranged at the bottom end of the positioning cylinder, and the outer wall of the screw is adapted and inserted into the inner cavity of the rubber support sleeve; the blocking component is arranged on the outer wall of the feeding tube, and the blocking component can be used to block the screw to prevent the screw in the inner cavity of the feeding tube from falling.

[0015] Preferably, the blocking assembly includes: a support frame, a guide rail, a second motor, a connecting rod, a gear, a rack and a clip; the support frame is arranged on the outer wall of the loading barrel; the number of the guide rails is two, and the two guide rails are respectively arranged at the upper and lower ends of the right side of the support frame, and the positions of the guide rails correspond to the positions of the blocking slots; the second motor is screwed to the front side of the support frame, and the second motor and the lifting assembly are electrically connected; the front end of the connecting rod is locked to the output end of the second motor through a coupling, and the rear end of the connecting rod is rotatably arranged on the rear side of the inner cavity of the support frame through a bearing; the gear is sleeved on the connecting rod The middle of the outer wall is locked by a top screw; there are two racks, and the outer walls of the two racks can be slidably adapted to be inserted into the inner cavities of the two guide rails respectively. The two racks are staggered, and the gear and the two racks are meshed with each other; the clip is arranged on the left side of the rack, and the position of the clip corresponds to the position of the blocking groove, and the sizes match. The clip located above passes through the inner cavity of the blocking groove located above and can be slidably extended into the inner cavity of the loading barrel. The size of the inner cavity of the clip matches the size of the screw. The inner cavity of the clip can be used to block the top of the screw, thereby preventing the screw from falling.

[0016] The present invention provides an assembly device and method for installing an assembled cabinet, which has the following beneficial effects:

[0017] 1. The present invention can drive the main board to move through the mechanical arm, thereby using the main board to drive the electric screwdriver to move, and through the visual sensor arranged at the bottom of the main board, the screwdriver can be aligned with the screw hole reserved in the assembly cabinet, the screw can be blocked by the rubber support sleeve, and the lifting assembly can be used to drive the electric screwdriver to move downward, so that the electric screwdriver can be used to drive the screwdriver to slide downward along the inner cavity of the positioning cylinder until the screwdriver and the screw in the inner cavity of the rubber support sleeve contact, and under the thrust of the screwdriver, the screw can be pushed out of the inner cavity of the rubber support sleeve and pushed into the inner cavity of the screw hole, and the cooperation between the electric screwdriver, the driving seat, the card slot, the second spring and the card ball can be used to drive the screwdriver to rotate through the connecting seat, so that the screwdriver can drive the screw to rotate, prompting the screw to be rotated and nailed into the assembly cabinet, thereby assembling and fixing the assembly cabinet.

[0018] 2. According to the present invention, when the screw is rotated into place or the screw is stuck, the torque required for the screw to continue rotating will be greater than the extrusion force applied to the card ball by the second spring. Therefore, when the electric screwdriver drives the driving seat to rotate, the inner wall of the card slot will squeeze the card ball, prompting the card ball to move toward the inner cavity of the extrusion slot and squeeze the second spring to cause elastic deformation, thereby prompting the electric screwdriver to drive the driving seat to idle. When the driving seat rotates but the connecting seat does not rotate, the cam can be prompted to rotate in the inner cavity of the connecting seat, so that the cam can be used to squeeze the roller to drive the extrusion seat to move backward, and then the extrusion seat can be used to squeeze the button switch, prompting the electric screwdriver to stop rotating and prompting the robotic arm to drive the mainboard to move.

[0019] 3. The present invention connects the top end of the feeding tube with an external screw vibration feeding tray, and can use the screw vibration feeding tray to continuously transport the screws into the inner cavity of the feeding tube, and flow into the inner cavity of the feeding barrel along with the inner cavity of the feeding tube, and can use the clamping piece to block the screws in the inner cavity of the feeding barrel to prevent them from falling further, and drive the two clamping pieces to move left and right alternately by two racks to lower the screws in the inner cavity of the feeding barrel into the inner cavity of the positioning barrel one by one, and use the rubber support sleeve to block the screws in the inner cavity of the positioning barrel to prevent them from falling, thereby realizing automatic loading of screws.

[0020] 4. This device effectively avoids the problem of excessive screw rotation caused by the high-speed rotation inertia of the electric screwdriver and the response delay of the control system in traditional robotic arms, significantly improves assembly accuracy and connection reliability, and reduces quality risks caused by loose screws and plate deformation, thereby extending the service life and stability of the assembled cabinet; at the same time, the added automatic screw loading device greatly shortens the robotic arm's material picking stroke and time cost, realizes continuous and efficient supply of screws, makes the assembly process smoother and more compact, significantly improves overall production efficiency, provides a more reliable automation solution for industrial large-scale customized production, and enhances the company's competitiveness in the e-commerce and customized home furnishing markets. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 An exploded view of the present invention;

[0023] Figure 3 It is a right side cross-sectional view of the drive seat;

[0024] Figure 4 It is the main cross-sectional view of the positioning tube;

[0025] Figure 5 The exploded view of the fastening mechanism;

[0026] Figure 6 This is the exploded view of the feeding mechanism;

[0027] Figure 7 Schematic diagram of the structure of the rubber support sleeve;

[0028] Figure 8 for Figure 3 A magnified view of point A;

[0029] Figure 9 for Figure 5 Enlarged view of point B;

[0030] Figure 10 for Figure 5 Enlarged view of point C;

[0031] Figure 11 for Figure 5 Enlarged view of point D;

[0032] Figure 12 for Figure 6 Enlarged view of point E.

[0033] Figure: 1. Robotic arm; 2. Main board; 3. Slide rail; 4. First motor; 5. First screw; 6. Mounting base; 7. Electric screwdriver; 8. Fastening mechanism; 81. Drive base; 82. Slot; 83. Rotating rod; 84. Cam; 85. Connecting base; 86. Extrusion groove; 87. Guide rod; 88. Extrusion base; 89. Roller; 810. First spring; 811. Push button switch; 812. Support base; 813. Sleeve; 814. Driven bevel gear; 815 , slider; 816, second screw; 817, slide; 818, push plate; 819, second spring; 820, blocking ball; 821, active bevel gear; 822, screwdriver; 9, feeding mechanism; 91, positioning cylinder; 92, feeding cylinder; 93, blocking groove; 94, feeding tube; 95, rubber support sleeve; 96, support frame; 97, guide rail; 98, second motor; 99, connecting rod; 910, gear; 911, rack; 912, clip; 10, screw. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1-12The present invention provides a technical solution for an assembly device for installing an assembled cabinet, comprising: a main board 2 is arranged at the front top end of the mechanical arm 1, and a visual sensor is arranged at the bottom end of the main board 2. There are two slide rails 3, and the two slide rails 3 are respectively arranged at the left and right ends of the front side of the main board 2. The slide rails 3 are used to position the mounting seat 6, and a lifting component is arranged in the middle of the front side of the main board 2. The left and right ends of the rear side of the mounting seat 6 are slidably adapted to be matched with the top ends of the outer walls of the two slide rails 3, and the mounting seat 6 is sleeved on the outer wall of the lifting component. The lifting component can drive the mounting seat 6 to slide up and down along the outer wall of the slide rail 3. The electric screwdriver 7 is detachably arranged in the inner cavity of the mounting seat 6. The electric screwdriver 7 is a prior art and will not be described in detail here. The electric screwdriver 7 is used to drive the screwdriver 822 to rotate. The fastening mechanism 8 is arranged at the bottom end of the electric screwdriver 7, and the feeding mechanism 9 is arranged at the front bottom end of the main board 2. The number of screws 10 is several, and the several screws 10 can be slidably adapted to be inserted into the inner cavity of the feeding mechanism 9.

[0036] More specifically, the lifting assembly includes: a first motor 4 and a first screw 5. The first motor 4 is screwed to the top front side of the main board 2. The first motor 4 is a prior art technology. The first motor 4 is a servo motor. No further details will be given here. The first motor 4 is used here to drive the first screw 5 to rotate. The top of the first screw 5 is locked to the output end of the first motor 4 through a coupling. The bottom end of the first screw 5 is rotatably arranged at the bottom end of the main board 2 through a bearing, and the mounting seat 6 is screwed to the outer wall of the first screw 5.

[0037] As a preferred solution, further, the fastening mechanism 8 includes: a drive seat 81, a card slot 82, a connecting seat 85, an extrusion groove 86, a signal component, a torque adjustment component and a screwdriver 822. The drive seat 81 is arranged at the bottom end of the electric screwdriver 7, and the outer wall of the drive seat 81 is provided with a plurality of card slots 82 equidistantly along the circumference. The drive seat 81 is embedded in the inner cavity of the connecting seat 85, and the top of the connecting seat 85 is rotatably sleeved on the top of the outer wall of the drive seat 81 through a bearing. The inner wall of the connecting seat 85 is provided with a plurality of extrusion grooves 86 equidistantly along the circumference, and the positions of the plurality of extrusion grooves 86 and the plurality of card slots 82 are the same. One by one, the connecting seat 85 is used to drive the screwdriver 822 to rotate, the signal component is arranged in the inner cavity of the connecting seat 85, and the signal component can be used to monitor whether the screw 10 is rotated into place. The torque adjustment component is arranged in the inner cavity of the extrusion groove 86, and the torque adjustment component can be used to adjust the torque applied to the screw 10. The screwdriver 822 is arranged in the middle of the bottom end of the connecting seat 85. The center of the screwdriver 822, the connecting seat 85, the drive seat 81 and the output end of the electric screwdriver 7 are the same. The screwdriver 822 is a prior art and will not be elaborated here. The rotation of the screwdriver 822 can nail the screw 10 into the assembly cabinet.

[0038] More specifically, the torque adjustment assembly includes: a synchronous drive assembly, a second screw 816, a slide groove 817, a push plate 818, a second spring 819 and a card ball 820. The synchronous drive assembly is arranged on the outer wall of the connecting seat 85. The number of second screws 816 is several. The outer walls of several second screws 816 are respectively screwed to the outside of the inner cavity of several extrusion grooves 86. The outer end of the second screw 816 can be rotatably extended out of the inner cavity of the extrusion groove 86. The outer wall of the second screw 816 is provided with several slide grooves 817 equidistantly along the circumference. The synchronous drive assembly can drive several second screws 816 to rotate synchronously. The second screw 816 is used to drive the push plate 818 to move. The push plate 818 is rotatably arranged on the inner end of the second screw 816 through a bearing. The push plate 818 is slidably adapted to be inserted into the outside of the inner cavity of the extrusion groove 86. The push plate 818 slides along the inner cavity of the extrusion groove 86 to adjust the second spring The degree of extrusion of spring 819, second spring 819 is embedded in the inner cavity of extrusion groove 86, one end of second spring 819 is clamped on the inner side of push plate 818, second spring 819 is a rotation spring, which undergoes elastic deformation after being squeezed or stretched by external force, and returns to its initial state after the external force is removed. The second spring 819 is used here to squeeze the card ball 820 into the inner cavity of the card groove 82, a part of the card ball 820 is embedded in the inner cavity of the extrusion groove 86, and the other part of the card ball 820 is adapted to be inserted into the inner cavity of the card groove 82 corresponding to its position, and the other end of the second spring 819 is clamped on the outer wall of the card ball 820. The cooperation between the card ball 820 and the card groove 82 can prompt the driving seat 81 to drive the connecting seat 85 to rotate. The length of the card ball 820 extending into the inner cavity of the card groove 82 is less than its radius. When the connecting seat 85 is fixed, it is ensured that the driving seat 81 can rotate in the inner cavity of the connecting seat 85;

[0039] More specifically, the synchronous drive assembly includes: a support seat 812, a sleeve 813, a slider 815, a driven bevel gear 814 and an active bevel gear 821. The number of support seats 812 is several, and the support seats 812 are respectively arranged on the outer wall of the connecting seat 85 at equal distances along the circumferential direction. The support seat 812 is used to support the sleeve 813. The inner and outer ends of the outer wall of the sleeve 813 are rotatably inserted into the inner cavity of the support seat 812 through bearings. The sleeve 813 is slidably sleeved on the outer wall of the second screw 816. The sleeve 813 is used to drive the second screw 816 to rotate. The number of sliders 815 is There are several sliders 815, which are equidistantly arranged on the inner wall of the sleeve 813 along the circumferential direction. The sliders 815 can be slidably adapted to be inserted into the inner cavity of the slide groove 817 corresponding to its position. When the sleeve 813 rotates, the cooperation between the slider 815 and the slide groove 817 can drive the second screw 816 to rotate. The driven bevel gear 814 is sleeved on the middle part of the outer wall of the sleeve 813 and locked by the top screw. The active bevel gear 821 is rotatably sleeved on the bottom end of the outer wall of the connecting seat 85 through a bearing. The active bevel gear 821 and the several driven bevel gears 814 are all meshed.

[0040] More specifically, the signal component includes: a rotating rod 83, a cam 84, a guide rod 87, an extrusion seat 88, a roller 89, a first spring 810 and a button switch 811. The top of the rotating rod 83 is arranged at the middle of the bottom end of the driving seat 81, and the bottom end of the rotating rod 83 is rotatably arranged at the middle of the bottom end of the inner cavity of the connecting seat 85 through a bearing. The cam 84 is sleeved on the middle of the outer wall of the rotating rod 83 and locked. There are two guide rods 87. The two guide rods 87 are arranged from top to bottom at the bottom end of the rear side of the inner wall of the connecting seat 85. The rear sides of the upper and lower ends of the extrusion seat 88 are slidably sleeved on the front side of the outer wall of the two guide rods 87. The roller 89 is rotatably arranged at the front end of the extrusion seat 88. The outer wall of the roller 89 is in contact with the outer wall of the cam 84. 89 is used to reduce the friction between it and the cam 84. The first spring 810 is sleeved on the outer wall of the guide rod 87. One end of the first spring 810 is clamped on the outer wall of the extrusion seat 88, and the other end of the first spring 810 is clamped on the inner wall of the connecting seat 85. The first spring 810 is a rotary spring. It undergoes elastic deformation after being squeezed or stretched by external force, and returns to its initial state after the external force is removed. The first spring 810 is used here to push the extrusion seat 88 to return to its initial position. The button switch 811 is set at the bottom end of the rear side of the inner wall of the connecting seat 85. The position of the button switch 811 corresponds to the position of the extrusion seat 88. The button switch 811 is electrically connected to the robotic arm 1 and the electric screwdriver 7. The button switch 811 is a prior art and will not be described in detail here.

[0041] As a preferred solution, further, the feeding mechanism 9 includes: a positioning cylinder 91, a feeding cylinder 92, a blocking groove 93, a feeding tube 94, a rubber support sleeve 95 and a blocking component. The positioning cylinder 91 is arranged at the bottom end of the front side of the main board 2, and the bottom end of the outer wall of the screwdriver 822 can be slidably adapted to be inserted into the top end of the inner cavity of the positioning cylinder 91. The inner cavity length of the positioning cylinder 91 is less than the length of the screwdriver 822. The feeding cylinder 92 is arranged on the right side of the outer wall of the positioning cylinder 91. The inner cavity of the feeding cylinder 92 is connected to the inner cavity of the positioning cylinder 91. The screw 10 can be slidably adapted to be inserted into the inner cavity of the positioning cylinder 91. Connected to the inner cavity of the feeding barrel 92, two blocking grooves 93 are provided on the right side of the outer wall of the feeding barrel 92, one end of the feeding tube 94 is sleeved on the top of the outer wall of the feeding barrel 92, and the rubber support sleeve 95 is detachably provided on the bottom end of the positioning barrel 91. The outer wall of the screw 10 is adapted to be inserted into the inner cavity of the rubber support sleeve 95. The rubber support sleeve 95 is used to block the screw 10 in the inner cavity of the positioning barrel 91. The blocking component is provided on the outer wall of the feeding tube 94. The blocking component can block the screw 10 to prevent the screw 10 in the inner cavity of the feeding tube 94 from falling;

[0042] More specifically, the blocking assembly includes: a support frame 96, a guide rail 97, a second motor 98, a connecting rod 99, a gear 910, a rack 911 and a clip 912. The support frame 96 is arranged on the outer wall of the loading barrel 92. There are two guide rails 97, and the two guide rails 97 are respectively arranged at the upper and lower ends of the right side of the support frame 96. The position of the guide rail 97 corresponds to the position of the blocking groove 93. The second motor 98 is screwed to the front side of the support frame 96. The second motor 98 is electrically connected to the lifting assembly. The second motor 98 is an existing technology and will not be described in detail here. The second motor 98 is used to drive the gear 910 to rotate. The front end of the connecting rod 99 is locked to the output end of the second motor 98 by a coupling. The rear end of the connecting rod 99 is rotatably arranged on the rear side of the inner cavity of the support frame 96 through a bearing. The wheel 910 is sleeved on the middle part of the outer wall of the connecting rod 99 and locked by a top screw. There are two racks 911. The outer walls of the two racks 911 can be slidably adapted to be inserted into the inner cavities of the two guide rails 97. The two racks 911 are staggered. The gear 910 and the two racks 911 are meshed. The clip 912 is set on the left side of the rack 911. The position of the clip 912 corresponds to the position of the blocking groove 93, and the sizes match. The upper clip 912 passes through the inner cavity of the upper blocking groove 93 and can slidably extend into the inner cavity of the loading barrel 92. The size of the inner cavity of the clip 912 matches the size of the screw 10. The inner cavity of the clip 912 can be used to block the top of the screw 10, thereby preventing the screw 10 from falling. The clip 912 is used to block the screw 10.

[0043] The working principle includes the following steps:

[0044] The first step is to connect the other end of the feeding tube 94 to the external screw vibration feeding disk, rotate the active bevel gear 821, and the rotation of the active bevel gear 821 prompts the driven bevel gears 814 to drive the sleeves 813 to rotate synchronously. The rotation of the sleeve 813 prompts the second screw 816 to rotate through the cooperation between the slider 815 and the slide groove 817. The rotational force generated by the rotation of the second screw 816 prompts the second screw 816 to drive the push plate 818 to slide along the inner cavity of the extrusion groove 86, thereby adjusting the extrusion degree of the second spring 819 as the push plate 818 slides, and then adjusting the extrusion force applied by the second spring 819 to the card ball 820, so as to adjust the torque applied by the screwdriver 822 to the screw 10 according to the plate of the assembly cabinet and the screw 10 used, until the push plate 818 moves to a suitable position.

[0045] Step 2: Use the robot arm 1 to move the mainboard 2, and use the visual sensor at the bottom of the mainboard 2 to find the position of the screw hole reserved for the assembly cabinet, until the robot arm 1 drives the mainboard 2 to move to the position of the screwdriver 822 corresponding to the position of the screw hole reserved for the assembly cabinet, and use the lifting assembly to drive the electric screwdriver 7 to slide downward along the outer wall of the slide rail 3, thereby using the electric screwdriver 7 to drive the screwdriver 822 to slide downward along the inner cavity of the positioning cylinder 91. While the lifting assembly drives the electric screwdriver 7 to slide downward, the second motor 98 is started, and the output end of the second motor 98 is used to drive the gear 910 to rotate clockwise through the connecting rod 99. The gear 910 rotates clockwise to drive the rack 911 located above to drive the clamp on its left side. The plate 912 moves to the right and drives the rack 911 located below to drive the clip 912 on its left side to move to the left, until the clip 912 located below passes through the inner cavity of the blocking groove 93 corresponding to its position and moves to the inner cavity of the upper barrel 92. At this time, the clip 912 located above moves out of the inner cavity of the upper barrel 92, and the screw 10 blocked by the clip 912 located above will fall downward along the inner cavity of the upper barrel 92 under the factor of gravity, and fall into the inner cavity of the clip 912 located below that has just moved into the inner cavity of the upper barrel 92, so that the screw 10 is blocked by the clip 912 located below to prevent the screw 10 from falling, and the screw 10 is blocked by the screw 10 located above it.

[0046] The screwdriver 822 is then driven by the electric screwdriver 7 to slide downward along the inner cavity of the positioning cylinder 91. When the bottom end of the screwdriver 822 contacts the top end of the screw 10 in the inner cavity of the rubber support sleeve 95, the screwdriver 822 continues to move downward to push the screw 10 in the inner cavity of the rubber support sleeve 95 to move downward, and squeeze the rubber support sleeve 95 to cause elastic deformation, until the screw 10 is pushed out of the inner cavity of the rubber support sleeve 95 by the screwdriver 822 and pushed into the reserved screw hole of the assembly cabinet. The electric screwdriver 7 is started, and the output end of the electric screwdriver 7 rotates to drive the driving seat 81 to rotate. The driving seat 81 rotates and drives the connecting seat 85 to rotate by the cooperation between the card slot 82, the card ball 820 and the second spring 819, thereby driving the screwdriver 822 to rotate by the connecting seat 85, and thereby driving the screwdriver 822 to rotate by the rotating screwdriver, prompting the screw 10 to be rotated and nailed into the reserved screw hole of the assembly cabinet.

[0047] The fourth step is to drive the screw 10 into the screw 10, and the torque applied by the screwdriver 822 to the screw 10 will gradually increase. After the screw 10 is nailed into place, or the screw 10 is stuck, if the screw 10 needs to be rotated further, the torque applied by the screwdriver 822 to the screw 10 will be greater than the extrusion force applied by the second spring 819 to the card ball 820. Then, the output end of the electric screwdriver 7 continues to drive the driving seat 81 to rotate. Since the screw 10 that has been rotated into place or the stuck screw 10 positions the screwdriver 822, the inner wall of the card slot 82 will squeeze the card ball 820 to move into the inner cavity of the extrusion slot 86 and squeeze the second spring 819 to cause elastic deformation. At this time, the output end of the electric screwdriver 7 will drive the driving seat 81 to rotate idly. When the driving seat 81 rotates and the connecting seat 85 is fixed, the cam 84 will be driven to rotate by the rotating rod 83 under the drive of the driving seat 81. As the cam 84 rotates, the roller 89 will be pushed under the extrusion force of the cam 84 to drive the extrusion seat 81. The first spring 810 is pressed against the push button 811, and the push button 811 is pressed against the push button 811. As the cam 84 rotates, the squeezing force on the squeezing seat 88 is gradually lost. Then, the elastic force of the first spring 810 can push the squeezing seat 88 to slide forward along the outer wall of the guide rod 87, so that the push button 811 gradually loses the squeezing force applied by the squeezing seat 88. When the squeezing seat 88 returns to its initial position, the push button 811 completely loses the squeezing force applied by the squeezing seat 88. At this time, the push button 811 transmits a signal to the electric screwdriver 7 and the robot arm 1. The output end of the electric screwdriver 7 stops rotating, and the robot arm 1 drives the main board 2 to move. The output end of the electric screwdriver 7 stops rotating, which prompts the driving seat 81 to stop rotating. Then, under the elastic force of the second spring 819, the card ball 820 can be pushed to move to the inner cavity of the card slot 82 corresponding to its current position.

[0048] The screw 10 blocked by the clip 912 is then forced to fall through the inner cavity of the positioning cylinder 91 under the action of gravity, and falls into the inner cavity of the rubber support sleeve 95 as the inner cavity of the positioning cylinder 91 falls. The rubber support sleeve 95 is used to block the screw 10, and the screws of the assembly cabinet are repeatedly tightened, thereby assembling the assembly cabinet.

[0049] To sum up, the device effectively avoids the problem of excessive screw rotation caused by the high-speed rotation inertia of the electric screwdriver 7 and the response delay of the control system of the traditional robotic arm 1, significantly improves the assembly accuracy and connection reliability, and reduces the quality risks caused by loose screws 10 and deformation of plates, thereby extending the service life and stability of the assembled cabinet; at the same time, the added automatic feeding device for screws 10 greatly shortens the material picking stroke and time cost of the robotic arm 1, realizes the continuous and efficient supply of screws 10, makes the assembly process smoother and more compact, significantly improves the overall production efficiency, provides a more reliable automation solution for industrial large-scale customized production, and enhances the competitiveness of enterprises in the e-commerce and customized home furnishing markets.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An assembly device for installing an assembled cabinet, characterized in that: include: robotic arm; A main board, the main board is arranged at the front top of the robotic arm, and a visual sensor is arranged at the bottom end of the main board; Slide rails, there are two slide rails, and the two slide rails are respectively arranged at the left and right ends of the front side of the main board; A lifting assembly, the lifting assembly being arranged in the middle of the front side of the main board; A mounting seat, wherein the left and right ends of the rear side of the mounting seat are respectively slidably adapted to be matched with the top ends of the outer walls of the two slide rails, and the mounting seat is sleeved on the outer wall of the lifting assembly, and the lifting assembly can be used to drive the mounting seat to slide up and down along the outer wall of the slide rail; An electric screwdriver, the electric screwdriver being detachably mounted in the inner cavity of the mounting base; A fastening mechanism, the fastening mechanism being arranged at the bottom end of the electric screwdriver; A feeding mechanism, the feeding mechanism being arranged at the front bottom end of the main board; Screws, the number of the screws is several, and the several screws can be slidably adapted to be inserted into the inner cavity of the feeding mechanism; The fastening mechanism comprises: A driving seat, the driving seat is arranged at the bottom end of the electric screwdriver, and the outer wall of the driving seat is provided with a plurality of slots equidistantly along the circumference; The connecting seat is embedded in the inner cavity of the connecting seat, the top of the connecting seat is rotatably connected to the top of the outer wall of the driving seat through a bearing, and the inner wall of the connecting seat is provided with a plurality of extrusion grooves equidistantly along the circumference, and the positions of the plurality of extrusion grooves and the plurality of card slots correspond one to one; A signal component is provided in the inner cavity of the connecting seat, and the signal component can be used to monitor whether the screw is rotated into position; A torque adjustment component is provided in the inner cavity of the extrusion groove, and the torque applied to the screw can be adjusted by using the torque adjustment component; A screwdriver, the screwdriver being arranged at the middle of the bottom end of the connecting base, wherein the screwdriver, the connecting base, the driving base and the output end of the electric screwdriver have the same center; The torque adjustment assembly includes: A synchronous drive assembly, wherein the synchronous drive assembly is arranged on the outer wall of the connecting seat; A plurality of second screws are provided, wherein outer walls of the plurality of second screws are respectively screwed to the outer sides of the inner cavities of the plurality of extrusion grooves, and the outer ends of the second screws are rotatably extended out of the inner cavities of the extrusion grooves. The outer walls of the second screws are provided with a plurality of sliding grooves equidistantly along the circumference, and the plurality of second screws can be driven to rotate synchronously by a synchronous drive assembly; A push plate, the push plate being rotatably disposed on the inner end of the second screw via a bearing, the push plate being slidably adapted to be inserted into the outer side of the inner cavity of the extrusion groove; a second spring, the second spring being embedded in the inner cavity of the extrusion groove, and one end of the second spring being clamped to the inner side of the push plate; A card ball, wherein a portion of the card ball is embedded in the inner cavity of the extrusion groove, and another portion of the card ball is adapted to be inserted into the inner cavity of the card groove corresponding to its position, and the other end of the second spring is clamped to the outer wall of the card ball; The signal component includes: A rotating rod, the top end of which is disposed in the middle of the bottom end of the driving seat, and the bottom end of which is rotatably disposed in the middle of the bottom end of the inner cavity of the connecting seat via a bearing; A cam, the cam being sleeved on the middle portion of the outer wall of the rotating rod and locked; There are two guide rods, which are arranged at the bottom end of the rear side of the inner wall of the connecting seat from top to bottom; An extrusion seat, wherein the rear sides of the upper and lower ends of the extrusion seat are respectively slidably sleeved on the front sides of the outer walls of the two guide rods; A roller, the roller being rotatably disposed at the front end of the extrusion seat, the outer wall of the roller being in contact with the outer wall of the cam; a first spring, wherein the first spring is sleeved on the outer wall of the guide rod, one end of the first spring is clamped on the outer wall of the extrusion seat, and the other end of the first spring is clamped on the inner wall of the connecting seat; A button switch is arranged at the bottom end of the rear side of the inner wall of the connecting seat. The position of the button switch corresponds to the position of the extrusion seat. The button switch is electrically connected to the robotic arm and the electric screwdriver.

2. The assembly device for installing an assembled cabinet according to claim 1, characterized in that: The length of the card ball extending into the inner cavity of the card slot is smaller than the radius thereof.

3. The assembly device for installing an assembled cabinet according to claim 2, characterized in that: The synchronous drive assembly comprises: Support seats, the number of which is several, and the several support seats are respectively arranged on the outer wall of the connecting seat at equal distances along the circumferential direction; A sleeve, wherein the inner and outer ends of the outer wall of the sleeve are rotatably inserted into the inner cavity of the support seat through bearings, and the sleeve is slidably sleeved on the outer wall of the second screw; Sliders, the number of which is several, and the several slides are respectively arranged on the inner wall of the sleeve at equal intervals along the circumferential direction, and the slides are slidably adapted to be inserted into the inner cavity of the slide groove corresponding to their positions; A driven bevel gear, the driven bevel gear being sleeved on the middle portion of the outer wall of the sleeve and being locked by a jackscrew; The driving bevel gear is rotatably sleeved on the bottom end of the outer wall of the connecting seat through a bearing, and the driving bevel gear and a plurality of driven bevel gears are meshed with each other.

4. The assembly device for installing an assembled cabinet according to claim 3, characterized in that: The feeding mechanism comprises: A positioning cylinder is provided at the front bottom end of the mainboard, and the bottom end of the outer wall of the screwdriver is slidably adapted to be plugged into the top end of the inner cavity of the positioning cylinder, and the inner cavity length of the positioning cylinder is less than the length of the screwdriver; The loading barrel is arranged on the right side of the outer wall of the positioning barrel, the inner cavity of the loading barrel is connected to the inner cavity of the positioning barrel, the screw is slidably adapted to be inserted into the inner cavity of the loading barrel, and two blocking grooves are provided on the right side of the outer wall of the loading barrel; A feeding pipe, one end of which is sleeved on the top of the outer wall of the feeding barrel; A rubber support sleeve, the rubber support sleeve is detachably arranged at the bottom end of the positioning cylinder, and the outer wall of the screw is adapted to be inserted into the inner cavity of the rubber support sleeve; The blocking component is arranged on the outer wall of the feeding tube. The blocking component can be used to block the screws to prevent the screws in the inner cavity of the feeding tube from falling.

5. The assembly device for installing an assembled cabinet according to claim 4, characterized in that: The blocking assembly comprises: A support frame, the support frame is arranged on the outer wall of the loading barrel; There are two guide rails, which are respectively arranged at the upper and lower ends of the right side of the support frame, and the positions of the guide rails correspond to the positions of the shielding slots; a second motor, the second motor being screw-connected to the front side of the support frame, and the second motor being electrically connected to the lifting assembly; A connecting rod, the front end of which is locked to the output end of the second motor via a coupling, and the rear end of which is rotatably disposed on the rear side of the inner cavity of the support frame via a bearing; A gear, the gear being sleeved on the middle portion of the outer wall of the connecting rod and being locked by a jackscrew; Racks, there are two racks, the outer walls of the two racks are slidably adapted to be inserted into the inner cavities of the two guide rails, the two racks are staggered, and the gear and the two racks are meshed; The clip is arranged on the left side of the rack, the position of the clip corresponds to the position of the shielding groove, and the sizes match. The clip located above passes through the inner cavity of the shielding groove located above and can slidably extend into the inner cavity of the loading barrel. The size of the inner cavity of the clip matches the size of the screw. The inner cavity of the clip can be used to shield the top of the screw, thereby preventing the screw from falling.

6. An assembly method for installing a prefabricated cabinet, which is applied to an assembly device for installing a prefabricated cabinet as claimed in claim 5, characterized in that: The following steps are involved: Step 1. When in use, connect the other end of the feeding tube to the external screw vibration feeding disk, rotate the active bevel gear, and the rotation of the active bevel gear prompts several driven bevel gears to drive several sleeves to rotate synchronously. The rotation of the sleeve prompts the second screw to rotate through the cooperation between the slider and the slide groove. The rotational force generated by the rotation of the second screw prompts the second screw to drive the push plate to slide along the inner cavity of the extrusion groove, thereby adjusting the extrusion degree of the second spring as the push plate slides, and then adjusting the extrusion force applied by the second spring to the card ball, thereby adjusting the torque applied by the screwdriver to the screw according to the plate of the assembly cabinet and the screws used, until the push plate moves to a suitable position; Step 2: Use the robotic arm to move the mainboard, and use the visual sensor at the bottom of the mainboard to find the position of the screw hole reserved in the assembly cabinet, until the robotic arm drives the mainboard to move to the position of the screwdriver corresponding to the position of the screw hole reserved in the assembly cabinet, and use the lifting assembly to drive the electric screwdriver to slide downward along the outer wall of the slide rail, thereby using the electric screwdriver to drive the screwdriver to slide downward along the inner cavity of the positioning cylinder. While the lifting assembly drives the electric screwdriver to slide downward, the second motor is started, and the output end of the second motor is used to drive the gear to rotate clockwise through the connecting rod, and the gear rotates clockwise to drive the rack belt located above The cam is then driven by the toothed plate to move out of the way and out of the way of the bolt, which in turn moves the bolt back into the workpiece, and the bolt is then driven back into the workpiece, which in turn moves the bolt back into the workpiece. Step 3: As the lifting assembly drives the screwdriver to slide downward along the inner cavity of the positioning cylinder through the electric screwdriver, when the bottom end of the screwdriver contacts the top end of the screw located in the inner cavity of the rubber support sleeve, the screwdriver continues to move downward to push the screw located in the inner cavity of the rubber support sleeve to move downward, and squeeze the rubber support sleeve to elastically deform, until the screw is pushed out of the inner cavity of the rubber support sleeve by the screwdriver and pushed into the reserved screw hole of the assembly cabinet, and the electric screwdriver is started. The output end of the electric screwdriver rotates to drive the driving seat to rotate, and the driving seat rotates to drive the connecting seat to rotate by the cooperation between the card slot, the card ball and the second spring, so that the connecting seat drives the screwdriver to rotate, and the rotating screwdriver drives the screw to rotate, prompting the screw to be rotated and nailed into the reserved screw hole of the assembly cabinet; Step 4. As the screw is driven in, the torque applied by the screwdriver will gradually increase. After the screw is driven into place, or the screw is stuck, if the screw needs to be continued to be rotated, the torque applied by the screwdriver to the screw will be greater than the extrusion force applied by the second spring to the card ball. Then, the output end of the electric screwdriver continues to drive the driving seat to rotate. Since the screw that has been rotated into place or the stuck screw positions the screwdriver, the inner wall of the card slot will squeeze the card ball to move into the inner cavity of the extrusion slot and squeeze the second spring to cause elastic deformation. At this time, the output end of the electric screwdriver will drive the driving seat to rotate idly. When the driving seat rotates and the connecting seat is fixed, the cam will be driven to rotate through the rotating rod under the drive of the driving seat. As the cam rotates, the roller will be pushed to drive the extrusion seat along the extrusion pressure of the cam. The outer wall of the guide rod moves backward and squeezes the first spring to cause elastic deformation until the squeezing seat contacts the button switch. The button switch is pressed by the squeezing seat. As the cam rotates, the squeezing force on the squeezing seat is gradually lost, and then the elastic force of the first spring can push the squeezing seat to slide forward along the outer wall of the guide rod, so that the button switch gradually loses the squeezing force applied by the squeezing seat. When the squeezing seat returns to its initial position, the button switch completely loses the squeezing force applied by the squeezing seat. At this time, the button switch transmits a signal to the electric screwdriver and the robotic arm, the output end of the electric screwdriver stops rotating, and the robotic arm drives the mainboard to move. The stoppage of the output end of the electric screwdriver can prompt the driving seat to stop rotating, and then the elastic force of the second spring can push the card ball to move to the inner cavity of the card slot corresponding to its current position; Step 5. Use the lifting assembly to drive the electric screwdriver to slide upward along the outer wall of the slide rail. At the same time, use the output end of the second motor to drive the gear to rotate counterclockwise through the connecting rod, thereby prompting the lower clip to move out of the inner cavity of the loading barrel, and the upper clip to move into the inner cavity of the loading barrel. Use the upper clip that moves into the inner cavity of the loading barrel to block and fix the second screw from the bottom. At the same time, the lower clip moves out of the inner cavity of the loading barrel, which can prompt the screw blocked by the clip to fall through the loading barrel into the inner cavity of the positioning barrel under the action of gravity, and fall into the inner cavity of the positioning barrel into the inner cavity of the rubber support sleeve. Use the rubber support sleeve to block the screw, repeat the tightening of the screws of the assembly cabinet, and thus assemble the assembly cabinet.

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