Automatic screw locking machine and method for assembling mower shell

Abstract

The invention discloses an automatic screw locking machine and method for mower shell assembly, and relates to the technical field of mower assembly.The automatic screw locking machine comprises a supporting table, a fixed support fixedly connected to the top of the supporting table and a screw locking mechanism, the top of the supporting table is fixedly connected with a conveying device used for conveying a shell, and the fixed support is slidably connected with a sliding seat; the top of the fixed support is fixedly connected with a first electric push rod, and the telescopic end of the first electric push rod is fixedly connected with the sliding base and used for pushing the sliding base to ascend and descend. A gasket is automatically adjusted through a pushing assembly, it is guaranteed that the gasket is located in the middle, it is avoided that stress is uniform when a screw is locked, the screw can be cleaned, and it is avoided that particle sundries exist on the outer side of the screw and affect locking of the screw; and when the screws pass through the cleaning disc, the cleaned sundries are adsorbed through the dust suction pipe.

Description

Technical Field

[0001] The invention relates to the technical field of lawn mower assembly, and in particular to an automatic screw locking machine and method for assembling a lawn mower housing. Background Art

[0002] The lawn mower is composed of a variety of assembly parts. Some plastic parts on the lawn mower are formed by injection molding. During the assembly process, they need to be mechanically assembled by an automatic screw locking machine to improve the efficiency of assembly. In addition, multiple positions on the injection-molded plastic parts can be processed at one time. The automatic screw locking machine is an automated operation equipment that is easy to use and reduces manual workload.

[0003] The patent application with reference publication number CN213730345U discloses an automatic screw locking machine for assembling a lawn mower housing, including a device bracket, a back plate, a toothed disc and a screw rod, the upper end of the device bracket is connected to the screw fixer through a transmission bar, and the lower end of the device bracket is symmetrically installed with a base plate on both sides, the back plate is welded to the side of the base plate, a support rod is fixedly installed at the middle position of the lower end of the mounting seat, the toothed disc is rotatably connected to the inside of the device bracket, and a toothed belt is installed on the outside of the toothed disc, the screw rod is rotatably installed inside the mounting seat and the back plate, the slider is connected to the mounting seat through an adjustment rod, and the inside of the back plate is connected to the built-in rod through a reset spring. The automatic screw locking machine for assembling a lawn mower housing adopts a new structural design, so that the device can clamp and limit plastic parts of different sizes, and a processing position staggered moving structure is provided in the device, which is convenient for the staff to realize loading and unloading while processing, thereby improving the overall processing efficiency.

[0004] In the process of tightening the screws, since the screws are placed on the screw holes, they are prone to displacement. If they are tightened directly, the screw holes will inevitably be stripped and the threads of the screw holes will be damaged, making it difficult to remove the screws later. When the screws are tightened, a gasket will be set at the bottom, but the hole diameter of the gasket is larger than the screw, and the gasket and the screw cannot be guaranteed to be concentric, which will cause uneven force on the screws during the tightening process.

[0005] Therefore, it is necessary to provide an automatic screw locking machine and method for assembling a lawn mower housing to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide an automatic screw locking machine and method for assembling a lawn mower housing, so as to solve the problems of the defects of the prior art mentioned in the above background technology.

[0007] Based on the above ideas, the present invention provides the following technical solutions: an automatic screw locking machine for assembling a lawn mower housing, comprising a support platform, a conveying device for conveying the housing is fixedly connected to the top of the support platform, and further comprising: A fixed bracket is fixedly connected to the top of the support platform, the fixed bracket is slidably connected to the sliding seat, the top of the fixed bracket is fixedly connected to a first electric push rod, the telescopic end of the first electric push rod is fixedly connected to the sliding seat, and is used to push the sliding seat up and down; A positioning cylinder is fixedly connected to the bottom of the sliding seat, a first electromagnetic disk for magnetically adsorbing the screw is arranged inside the positioning cylinder, a connecting rod is fixedly connected to the top of the first electromagnetic disk, a driving assembly is arranged between the connecting rod and the top of the positioning cylinder for driving the first electromagnetic disk to rotate and lift, and a cleaning disk for cleaning the screw is fixedly connected inside the positioning cylinder; A contact plate is arranged at the top of the positioning cylinder, and a positioning assembly is arranged inside the positioning cylinder. When the first electromagnetic magnet pushes the contact plate to rise and passes through the traction member, the traction member pulls the positioning assembly to center the screw. A contact ring is arranged at the bottom of the positioning tube, and a pushing component is arranged inside the contact ring. When the positioning tube pushes the contact ring to contact the shell, the pushing component pushes the gasket in the center.

[0008] As a further solution of the present invention: the positioning component includes: A plurality of positioning plates, the plurality of positioning plates are arranged in a ring around the center of the positioning cylinder, and a second rack is fixedly connected to one side of the plurality of positioning plates, and the second rack passes through the positioning cylinder and is slidably connected to the positioning cylinder; A plurality of second gears, the plurality of second gears are respectively meshed and connected with the plurality of second racks, and the second gears are internally fixedly connected with support rods; A plurality of transverse plates are rotatably connected to the outer sides of a plurality of support rods respectively, a torsion spring for resetting is fixedly connected between the transverse plates and the support rods, and the plurality of transverse plates are fixedly connected to the positioning cylinder.

[0009] As a further solution of the present invention: the traction member includes: A plurality of third telescopic rods and a plurality of third springs, both ends of the plurality of third telescopic rods and the plurality of third springs are respectively fixedly connected to the contact plate and the inner top of the positioning cylinder, and the plurality of third springs are sleeved on the outer sides of the third telescopic rods; A plurality of first racks, each of which is fixedly connected to the top of the contact plate, passes through the top of the positioning cylinder and is slidably connected to the positioning cylinder, each of which is meshed with a first gear, and a support plate is rotatably connected to the outer side of the first gear, and the support plate is fixedly connected to the positioning cylinder; A first winding drum fixedly connected to both sides of the plurality of first gears, wherein the outer sides of the plurality of first winding drums are all wound with a first traction steel wire; The second winding drum is fixedly connected to both ends of the plurality of support rods, the plurality of first winding drums correspond to the plurality of second winding drums one by one, and one end of the plurality of first traction steel wires is wound and connected to the outer sides of the plurality of second winding drums.

[0010] As a further solution of the present invention: the pushing component includes: A plurality of first telescopic rods, both ends of the plurality of first telescopic rods are respectively between the positioning tube and the contact ring, and the outer sides of the plurality of first telescopic rods are sleeved with a first spring; A plurality of first inflatable cylinders, the plurality of first inflatable cylinders are fixedly connected to the top of the contact ring, and a first push rod is disposed inside the plurality of first inflatable cylinders, the first push rod passes through the top of the first inflatable cylinder and is slidably connected to the first inflatable cylinder, and the first push rod is fixedly connected to the bottom of the positioning cylinder; A plurality of second inflatable cylinders, the plurality of second inflatable cylinders are fixedly connected to the inside of the contact ring, and the plurality of second inflatable cylinders are arranged in a ring around the center of the contact ring, and a connecting pipe is fixedly connected between one end of the plurality of contact rings and the first inflatable cylinders; The second push rod is slidably connected to the inside of the second inflatable cylinder, one end of the second push rod passes through the second inflatable cylinder and is slidably connected to the second inflatable cylinder, and one end of the second push rod is fixedly connected to a clamping plate. When the first push rod descends, the gas inside the first inflatable cylinder is injected into the second inflatable cylinder through the connecting pipe, thereby pushing the second push rod to extend, so that the clamping plate clamps the gasket in the center.

[0011] As a further solution of the present invention: a lower pressure plate is slidably arranged inside the clamping plate, a second telescopic rod and a second spring are fixedly connected between the lower pressure plate and the clamping plate, and the second spring is sleeved on the outside of the second telescopic rod, and the lower pressure plate is in contact with the top of the gasket.

[0012] As a further solution of the present invention: the driving assembly comprises: A second electric push rod is fixedly connected to the top of the sliding seat, a telescopic end of the second electric push rod is fixedly connected to a fixing frame, and a connecting rod is rotatably connected to the bottom of the fixing frame; A first pulley is rotatably connected to the bottom of the fixing frame, and the first pulley is sleeved on the outside of the connecting rod, and the first pulley is fixedly connected to the connecting rod; A second pulley is rotatably connected to the bottom of the fixing frame, the second pulley is connected to the first pulley through a belt transmission, and a driving motor is fixedly connected to the top of the fixing frame, and an output shaft of the driving motor is fixedly connected to the second pulley.

[0013] As a further solution of the present invention: a sliding ring is slidably connected inside the positioning cylinder, and the sliding ring is arranged below the cleaning disk. A rotating ring is rotatably connected inside the sliding ring, and a plurality of fixed plates are fixedly connected inside the rotating ring.

[0014] As a further solution of the present invention: a fourth telescopic rod is fixedly connected to one side of each of the plurality of fixed plates, a cleaning brush plate is fixedly connected to one end of the fourth telescopic rod, a fourth spring is sleeved on the outer side of the fourth telescopic rod, two ends of the fourth spring are respectively fixedly connected to the cleaning brush plate and the fixed plate, and a second electromagnet is fixedly connected to one side of the fixed plate, a magnetic plate is fixedly connected to one side of the cleaning brush plate, and the second electromagnet magnetically repels the magnetic plate when energized.

[0015] As a further solution of the present invention: the bottom end of the positioning cylinder is rotatably connected to a guide wheel, and the outside of the contact plate is fixedly connected to a plurality of second traction steel wires. The second traction steel wires pass through the sliding ring and pass through the guide wheel and are finally fixedly connected to the bottom of the sliding ring. When the contact plate rises, the sliding ring is pulled down, and a sliding shaft is fixedly connected to the outside of the fixed plate. A spiral groove is opened on the outside of the positioning cylinder, and the sliding shaft extends to the inside of the spiral groove.

[0016] A method for automatically locking screws for assembling a lawn mower housing is also provided, comprising the following steps: Step 1: The housing is transported to the bottom of the positioning cylinder by the transport device, and the first electric push rod is started to push the sliding seat down, so that the contact ring on the top of the positioning cylinder contacts the housing; Step 2: When the positioning tube pushes the contact ring to contact the housing, the pushing component inside the contact ring clamps the gasket in the center; Step 3: Push the first electromagnetic disk down through the driving assembly, adsorb the screw, and rotate it upward to pass through the cleaning disk for cleaning; Step 4: When the first electromagnetic disk pushes the contact disk up, the positioning assembly continuously pushes the screw to move to the center position. When the adjustment is completed, the first electromagnetic disk descends to assemble the screw with the threaded hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Adjust the screws through the positioning assembly to avoid deviation of the screws, which may cause damage to the screw holes when tightening. The gaskets are automatically adjusted by pushing the assembly to ensure that the gaskets are in the middle, thereby ensuring uniform force when the screws are tightened. The screws can also be cleaned to avoid particles and debris on the outside of the screws that affect the tightening of the screws. A dust suction pipe can also be provided inside the positioning cylinder, which can be connected to an external dust suction device. When the screws pass through the cleaning disk, the cleaned debris is adsorbed through the dust suction pipe.

[0018] 2. The second winding disk drives the fixedly connected second gear to rotate through the support rod, so that the second gear pushes the meshingly connected second rack to move, and multiple second racks move toward the screw, thereby continuously pushing the screw to the bottom position of the first electromagnetic disk, thereby ensuring that the screw is at the center position of the first electromagnetic disk, avoiding the screw from tilting, and maintaining stability when tightening the screw later, avoiding screw hole slippage due to offset.

[0019] 3. The gas inside the first inflatable cylinder is transported to the corresponding second inflatable cylinder through the connecting pipe. At this time, the gas inside the second inflatable cylinder pushes the second push rod to extend from the second inflatable cylinder, and the second push rod pushes the clamping plate to move, and then the clamping plate clamps the gasket, thereby ensuring that the gasket is in the middle and the gasket will not shake when the screw is tightened.

[0020] 4. The cleaning brush plate on the rotating ring is slowly inserted into the screw hole, and a sliding shaft is fixedly connected to one side of the fixed plate. The sliding shaft slides inside the spiral groove to rotate the fixed plate, and then the cleaning brush plate cleans the inside of the screw hole to prevent dust inside the screw hole from affecting the assembly of the screw. Later, when the contact plate drops, the sliding ring automatically rises to automatically clean the screw hole and improve the effect of screw assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the fixing bracket of the present invention; Figure 3 It is a schematic diagram of the structure of the second electric push rod of the present invention; Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure of part A; Figure 5 Schematic diagram of the contact ring structure of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the positioning tube of the present invention; Figure 7 It is a schematic diagram of the contact disk structure of the present invention; Figure 8 It is a schematic diagram of the structure of the positioning component of the present invention; Fig. 9 It is a schematic diagram of the structure of the driving component of the present invention; Fig.10 The present invention Fig. 9 A schematic diagram of the enlarged structure of part B; Fig.11 It is a schematic diagram of the structure of the sliding ring of the present invention; Fig.12 It is a schematic diagram of the structure of the cleaning brush plate of the present invention; Fig.13 The present invention Fig.12 Schematic diagram of the enlarged structure of part C.

[0023] In the figure: 1, support platform; 2, fixed bracket; 201, sliding seat; 202, first electric push rod; 3, positioning cylinder; 4, first electromagnetic disk; 401, connecting rod; 402, fixed frame; 403, first pulley; 404, second pulley; 406, second electric push rod; 5, contact ring; 501, first telescopic rod; 502, first spring; 503, first inflatable cylinder; 504, first push rod; 505, second inflatable cylinder; 506, second push rod; 507, clamping plate; 508, second telescopic rod; 509, lower pressure plate; 510, second spring; 601, contact plate; 602, first rack; 603, first gear; 60 4. The first winding disk; 605. The positioning plate; 607. The second gear; 608. The second winding disk; 609. The horizontal plate; 610. The second rack; 611. The third telescopic rod; 612. The third spring; 613. The first traction wire; 7. The cleaning disk; 8. The sliding ring; 801. The rotating ring; 802. The fixed plate; 803. The fourth telescopic rod; 804. The cleaning brush plate; 805. The fourth spring; 806. The second electromagnet; 807. The magnetic plate; 808. The sliding shaft; 809. The guide wheel; 810. The second traction wire; 811. The spiral groove; 9. The screw; 10. The gasket; 11. The first rotating platform; 111. The second rotating support platform. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] like Figures 1 to 13 As shown, an automatic screw locking machine and method for assembling a lawn mower housing include the following embodiments: Embodiment 1: Figure 1 , Figure 5 and Figure 6As shown, it includes a support table 1, a conveying device for conveying the shell is fixedly connected to the top of the support table 1, and the conveying device includes a rotatable first rotating table 11, and a plurality of second rotating support tables 111 are fixedly connected to the top of the first rotating table 11. The second rotating support tables 111 adopt an electric rotating disk, and the tops of the second rotating support tables 111 are all provided with a clamp for fixing the shell, and also include: A fixed bracket 2 is fixedly connected to the top of the support platform 1, the fixed bracket 2 is slidably connected to a sliding seat 201, a first electric push rod 202 is fixedly connected to the top of the fixed bracket 2, and a telescopic end of the first electric push rod 202 is fixedly connected to the sliding seat 201 for pushing the sliding seat 201 up and down; A positioning cylinder 3 is fixedly connected to the bottom of the sliding seat 201, and a first electromagnetic disk 4 for magnetically adsorbing the screw 9 is arranged inside the positioning cylinder 3. A connecting rod 401 is fixedly connected to the top of the first electromagnetic disk 4. A driving assembly for driving the first electromagnetic disk 4 to rotate and rise and fall is arranged on the connecting rod 401 and the top of the positioning cylinder 3. A cleaning disk 7 for cleaning the screw 9 is fixedly connected inside the positioning cylinder 3; A contact plate 601 is provided at the top of the positioning cylinder 3, and a positioning assembly is provided inside the positioning cylinder 3. When the first electromagnetic disk 4 pushes the contact plate 601 upward through the traction member, the traction member pulls the positioning assembly to center the screw 9; A contact ring 5 is arranged at the bottom of the positioning tube 3 , and a pushing component is arranged inside the contact ring 5 . When the positioning tube 3 pushes the contact ring 5 to contact the housing, the pushing component pushes the gasket 10 in the center.

[0027] In specific implementation, the outer shell is transported to the bottom of the positioning cylinder 3 by the conveying device, and the first electric push rod 202 is started, and the first electric push rod 202 pushes the sliding seat 201 to descend, so that the contact ring 5 on the top of the positioning cylinder 3 contacts the shell. When the positioning cylinder 3 pushes the contact ring 5 to contact the shell, the pushing component inside the contact ring 5 clamps the gasket 10 in the center, and then the driving component pushes the first electromagnetic disk 4 down to adsorb the screw 9, and rotates it to rise, and passes through the cleaning disk 7 for cleaning. When the first electromagnetic disk 4 pushes the contact disk 601 to rise, the positioning component continuously pushes the screw 9 to move to the center position. When the adjustment is completed After completion, the first electromagnetic disk 4 descends, and the screw 9 is assembled with the threaded hole. The screw 9 is adjusted by the positioning component to prevent the screw 9 from being offset, which causes damage to the screw 9 hole when tightening, and the gasket 10 is automatically adjusted by the pushing component to ensure that the gasket 10 is in the middle, thereby ensuring that the force is uniform when the screw is tightened. The screw 9 can also be cleaned to prevent the presence of particles and debris on the outside of the screw 9 from affecting the tightening of the screw 9. A dust suction pipe can also be provided inside the positioning cylinder 3, which is connected to an external dust suction device. When the screw 9 passes through the cleaning disk 7, the cleaned debris is adsorbed through the dust suction pipe.

[0028] In this embodiment, Figure 7 and Figure 8 As shown, the positioning component includes: A plurality of positioning plates 605, the plurality of positioning plates 605 are arranged in a ring around the center of the positioning cylinder 3, and a second rack 610 is fixedly connected to one side of the plurality of positioning plates 605, and the second rack 610 penetrates the positioning cylinder 3 and is slidably connected to the positioning cylinder 3; A plurality of second gears 607, wherein the plurality of second gears 607 are respectively meshed and connected with the plurality of second racks 610, and the second gears 607 are internally fixedly connected with support rods; The plurality of transverse plates 609 are rotatably connected to the outsides of the plurality of support rods respectively, a torsion spring for resetting is fixedly connected between the transverse plates 609 and the support rods, and the plurality of transverse plates 609 are fixedly connected to the positioning tube 3 .

[0029] As a further solution of the present invention: the traction member comprises: A plurality of third telescopic rods 611 and a plurality of third springs 612, both ends of which are fixedly connected to the contact plate 601 and the top of the inner part of the positioning cylinder 3, respectively, and the plurality of third springs 612 are sleeved on the outer side of the third telescopic rods 611; A plurality of first racks 602, each of which is fixedly connected to the top of the contact plate 601, and each of which passes through the top of the positioning cylinder 3 and is slidably connected to the positioning cylinder 3. Each of the first racks 602 is meshedly connected to a first gear 603, and a support plate is rotatably connected to the outer side of the first gear 603, and the support plate is fixedly connected to the positioning cylinder 3; A first winding drum 604 is fixedly connected to both sides of the plurality of first gears 603, and the outer sides of the plurality of first winding drums 604 are all wound and connected with a first traction wire 613; The second winding drum 608 is fixedly connected to both ends of the plurality of support rods, the plurality of first winding drums 604 correspond to the plurality of second winding drums 608 one by one, and one end of the plurality of first traction steel wires 613 is wound and connected to the outer sides of the plurality of second winding drums 608 .

[0030] During specific implementation, when the first electromagnetic disk 4 rises, it contacts with the contact disk 601, and the contact disk 601 rises. The contact disk 601 pushes the first rack 602 fixedly connected at the top to rise, and the first rack 602 drives the first gear 603 meshingly connected on the outside to rotate. At this time, the first gear 603 drives the first winding disk 604 fixedly connected on the outside to rotate. When the first winding disk 604 rotates, it drives the wound first traction wire 613 to be wound, and the first traction wire 613 pulls the second winding disk 608 to rotate. The second winding disk 608 drives the fixedly connected second gear 607 to rotate through the support rod, so that the second gear 607 pushes the meshingly connected second rack 610 to move, and multiple second racks 610 move toward the screw 9, thereby continuously pushing the screw 9 to the bottom position of the first electromagnetic disk 4, thereby ensuring that the screw 9 is at the center position of the first electromagnetic disk 4, avoiding the screw 9 from tilting, and can remain stable when locking the screw 9 later, avoiding the screw hole from slipping due to offset.

[0031] It is worth noting that in order to ensure the stable movement of the second rack 610, a T-shaped groove can be set between the second rack 610 and the positioning cylinder 3 to ensure the stable movement of the second rack 610, or a limiting telescopic rod can be set between the second rack 610 and the positioning cylinder 3 to fix the connection.

[0032] Embodiment 2: Figure 7 and Fig. 9 As shown, the push assembly includes: A plurality of first telescopic rods 501, both ends of the plurality of first telescopic rods 501 are respectively connected between the positioning tube 3 and the contact ring 5, and the outer sides of the plurality of first telescopic rods 501 are sleeved with first springs 502; A plurality of first inflatable cylinders 503, the plurality of first inflatable cylinders 503 are fixedly connected to the top of the contact ring 5, and a first push rod 504 is disposed inside the plurality of first inflatable cylinders 503, the first push rod 504 penetrates the top of the first inflatable cylinder 503 and is slidably connected to the first inflatable cylinder 503, and the first push rod 504 is fixedly connected to the bottom of the positioning cylinder 3; A plurality of second inflatable cylinders 505, the plurality of second inflatable cylinders 505 are fixedly connected to the inside of the contact ring 5, and the plurality of second inflatable cylinders 505 are arranged in a ring shape around the center of the contact ring 5, and a connecting pipe is fixedly connected between one end of the plurality of contact rings 5 ​​and the first inflatable cylinder 503; The second push rod 506 is slidably connected to the inside of the second inflatable cylinder 505, and one end of the second push rod 506 passes through the second inflatable cylinder 505 and is slidably connected to the second inflatable cylinder 505. One end of the second push rod 506 is fixedly connected to a clamping plate 507. When the first push rod 504 descends, the internal gas of the first inflatable cylinder 503 is injected into the second inflatable cylinder 505 through the connecting tube, thereby pushing the second push rod 506 to extend, so that the clamping plate 507 clamps the gasket 10 in the center.

[0033] In specific implementation, when the screw 9 is locked, a gasket 10 is arranged between the screw 9 and the housing, and the inner diameter of the gasket 10 is often larger than the screw 9, so the center of the gasket 10 cannot be consistent with the center of the screw 9, resulting in uneven force when the screw 9 is locked. Therefore, in this solution, when the positioning cylinder 3 is aligned with the screw 9 on the housing, the contact ring 5 below the positioning cylinder 3 first contacts the housing, and the positioning cylinder 3 continues to descend, and the positioning cylinder 3 pushes the first push rod 504 at the top of the contact ring 5, and the first push rod 504 pushes the screw 9 on the housing. The gas inside the first air cylinder 503 is squeezed so that the gas inside the first air cylinder 503 is transported to the corresponding second air cylinder 505 through the connecting pipe. At this time, the gas inside the second air cylinder 505 pushes the second push rod 506 to extend out of the second air cylinder 505, and the second push rod 506 pushes the clamping plate 507 to move, and then the clamping plate 507 clamps the gasket 10, thereby ensuring that the gasket 10 is in the middle, and when the screw 9 is tightened, the gasket 10 will not shake.

[0034] In this embodiment: Fig.10 As shown, a lower pressure plate 509 is slidably arranged inside the clamping plate 507, and a second telescopic rod 508 and a second spring 510 are fixedly connected between the lower pressure plate 509 and the clamping plate 507, and the second spring 510 is sleeved on the outside of the second telescopic rod 508, and the lower pressure plate 509 is in contact with the top of the gasket 10.

[0035] In specific implementation, when the clamping plate 507 contacts the gasket 10, it is easy to cause the gasket 10 to warp. Therefore, a lower pressure plate 509 is set inside the clamping plate 507. When the lower pressure plate 509 contacts the gasket 10, the lower pressure plate 509 is squeezed and rises, squeezing the upper part of the gasket 10 to prevent the gasket 10 from warping.

[0036] Example 3: Figure 3 and Figure 4 As shown, the drive assembly includes: A second electric push rod 406 is fixedly connected to the top of the sliding seat 201, the telescopic end of the second electric push rod 406 is fixedly connected to the fixing frame 402, and the connecting rod 401 is rotatably connected to the bottom of the fixing frame 402; A first pulley 403 is rotatably connected to the bottom of the fixing frame 402, and the first pulley 403 is sleeved on the outside of the connecting rod 401, and the first pulley 403 is fixedly connected to the connecting rod 401; A second pulley 404 is rotatably connected to the bottom of the fixed frame 402 , and the second pulley 404 is connected to the first pulley 403 via a belt transmission. A driving motor is fixedly connected to the top of the fixed frame 402 , and the output shaft of the driving motor is fixedly connected to the second pulley 404 .

[0037] In specific implementation, when the first electromagnetic disk 4 descends and rises, the second electric push rod 406 is started for driving, so that the second electric push rod 406 pushes the fixed frame 402 to rise and fall, so that the connecting rod 401 pushes the first electromagnetic disk 4 to rise and fall, and in order to ensure that the connecting rod 401 can rotate, a driving motor is set, and the output shaft of the driving motor drives the second pulley 404 to rotate, and the second pulley 404 drives the first pulley 403 to rotate through a belt transmission, and the first pulley 403 drives the fixedly connected connecting rod 401 to rotate, and when the first electromagnetic disk 4 passes through the cleaning disk 7, the cleaning disk 7 cleans the screw 9.

[0038] Embodiment 4, as Fig.11 , Fig.12 and Fig.13 As shown, a sliding ring 8 is slidably connected inside the positioning tube 3, and the sliding ring 8 is arranged below the cleaning disk 7. A rotating ring 801 is rotatably connected inside the sliding ring 8, and a plurality of fixed plates 802 are fixedly connected inside the rotating ring 801.

[0039] One side of the multiple fixed plates 802 is fixedly connected with a fourth telescopic rod 803, one end of the fourth telescopic rod 803 is fixedly connected with a cleaning brush plate 804, a fourth spring 805 is sleeved on the outer side of the fourth telescopic rod 803, both ends of the fourth spring 805 are respectively fixedly connected to the cleaning brush plate 804 and the fixed plate 802, and one side of the fixed plate 802 is fixedly connected with a second electromagnet 806, one side of the cleaning brush plate 804 is fixedly connected with a magnetic plate 807, and the second electromagnet 806 magnetically repels from the magnetic plate 807 after being energized.

[0040] The bottom end of the positioning cylinder 3 is rotatably connected to a guide wheel 809, and the outside of the contact plate 601 is fixedly connected to a plurality of second traction wires 810. The second traction wires 810 pass through the sliding ring 8 and pass through the guide wheel 809 and are finally fixedly connected to the bottom of the sliding ring 8. When the contact plate 601 rises, it pulls the sliding ring 8 down. The outside of the fixed plate 802 is fixedly connected to a sliding shaft 808. A spiral groove 811 is opened on the outside of the positioning cylinder 3, and the sliding shaft 808 extends to the inside of the spiral groove 811.

[0041] During specific implementation, if dust appears inside the screw hole that needs to be tightened, it is easy to cause thread slippage when the screw 9 is tightened, resulting in damage to the outer shell, and the screw 9 cannot be smoothly removed later. Therefore, when the first electromagnetic disk 4 drives the screw 9 to rise, the second electromagnet 806 on the fixed plate 802 is started. After the second electromagnet 806 is energized, the cleaning brush plate 804 is pushed by the magnetic repulsion force. The cleaning brush plate 804 moves to the top of the screw hole. At this time, the contact plate 601 is pushed up by the first electromagnetic disk 4. The contact plate 601 is fixedly connected to the bottom of the sliding ring 8 after passing through the sliding ring 8 through the second traction wire 810. Then, the second traction wire 810 can pull the sliding ring 8 to descend, and the sliding ring 8 drives the rotating ring 801 to descend. The cleaning brush plate 804 on the rotating ring 801 is slowly inserted into the screw hole, and a sliding shaft 808 is fixedly connected to one side of the fixed plate 802. The sliding shaft 808 slides in the spiral groove 811 to rotate the fixed plate 802, and then the cleaning brush plate 804 cleans the inside of the screw hole to avoid dust in the screw hole affecting the assembly of the screw. Later, when the contact plate 601 descends, the sliding ring 8 automatically rises to automatically clean the screw hole and improve the effect of screw assembly.

[0042] A method for automatically locking screws for assembling a lawn mower housing is also provided, comprising the following steps: Step 1: The housing is transported to the bottom of the positioning cylinder 3 by the transport device, and the first electric push rod 202 is started, so that the first electric push rod 202 pushes the sliding seat 201 downward, so that the contact ring 5 on the top of the positioning cylinder 3 contacts the housing; Step 2: When the positioning cylinder 3 pushes the contact ring 5 to contact the housing, the pushing component inside the contact ring 5 clamps the gasket 10 in the center; Step 3: Push the first electromagnetic disk 4 downward through the driving assembly, adsorb the screw 9, and rotate it upward to pass through the cleaning disk 7 for cleaning; Step 4: When the first electromagnetic disk 4 pushes the contact disk 601 to rise, the positioning assembly continuously pushes the screw 9 to move to the center position. When the adjustment is completed, the first electromagnetic disk 4 descends to assemble the screw 9 with the threaded hole.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic screw locking machine for assembling a lawn mower housing, comprising a support platform (1), a conveying device for conveying the housing being fixedly connected to the top of the support platform (1), characterized in that: Also includes: A fixed bracket (2) is fixedly connected to the top of the support platform (1), the fixed bracket (2) is slidably connected to a sliding seat (201), a first electric push rod (202) is fixedly connected to the top of the fixed bracket (2), and a telescopic end of the first electric push rod (202) is fixedly connected to the sliding seat (201) for pushing the sliding seat (201) up and down; A positioning cylinder (3) is fixedly connected to the bottom of the sliding seat (201), a first electromagnetic disk (4) for magnetically adsorbing the screw (9) is arranged inside the positioning cylinder (3), a connecting rod (401) is fixedly connected to the top of the first electromagnetic disk (4), a driving component for driving the first electromagnetic disk (4) to rotate and rise and fall is arranged between the connecting rod (401) and the top of the positioning cylinder (3), and a cleaning disk (7) for cleaning the screw (9) is fixedly connected inside the positioning cylinder (3); A contact plate (601) is provided at the top end of the positioning cylinder (3), and a positioning assembly is provided inside the positioning cylinder (3). When the first electromagnetic disk (4) pushes the contact plate (601) upward through the provided traction member, the traction member pulls the positioning assembly to center the screw (9); A contact ring (5) is arranged at the bottom of the positioning cylinder (3), wherein a pushing component is arranged inside the contact ring (5); when the positioning cylinder (3) pushes the contact ring (5) to contact the outer shell, the pushing component pushes the gasket (10) in the center.

2. The automatic screw locking machine for assembling the lawn mower housing according to claim 1, characterized in that: The positioning component comprises: A plurality of positioning plates (605), the plurality of positioning plates (605) being arranged in a ring shape around the center of the positioning cylinder (3), and a second rack (610) being fixedly connected to one side of the plurality of positioning plates (605), the second rack (610) penetrating the positioning cylinder (3) and being slidably connected to the positioning cylinder (3); A plurality of second gears (607), the plurality of second gears (607) being meshedly connected with the plurality of second racks (610) respectively, and the second gears (607) are internally fixedly connected with support rods; A plurality of transverse plates (609) are rotatably connected to the outsides of the plurality of support rods respectively, a torsion spring for resetting is fixedly connected between the transverse plates (609) and the support rods, and the plurality of transverse plates (609) are all fixedly connected to the positioning cylinder (3).

3. The automatic screw locking machine for assembling the lawn mower housing according to claim 2, characterized in that: The traction member comprises: A plurality of third telescopic rods (611) and a plurality of third springs (612), wherein two ends of the plurality of third telescopic rods (611) and the plurality of third springs (612) are respectively fixedly connected to the contact plate (601) and the top end inside the positioning cylinder (3), and the plurality of third springs (612) are sleeved on the outside of the third telescopic rods (611); A plurality of first racks (602), each of which is fixedly connected to the top of the contact plate (601), the first racks (602) passing through the top of the positioning cylinder (3) and being slidably connected to the positioning cylinder (3), each of which is meshingly connected to a first gear (603), a support plate being rotatably connected to the outer side of the first gear (603), and the support plate being fixedly connected to the positioning cylinder (3); A first winding drum (604) is fixedly connected to both sides of the plurality of first gears (603), and the outer sides of the plurality of first winding drums (604) are all wound and connected with a first traction steel wire (613); A second winding drum (608) is fixedly connected to both ends of the plurality of support rods, the plurality of first winding drums (604) correspond one-to-one to the plurality of second winding drums (608), and one end of the plurality of first traction steel wires (613) is wound around and connected to the outside of the plurality of second winding drums (608).

4. The automatic screw locking machine for assembling a lawn mower housing according to claim 1, characterized in that: The pushing component comprises: A plurality of first telescopic rods (501), two ends of the plurality of first telescopic rods (501) are respectively connected between the positioning cylinder (3) and the contact ring (5), and a first spring (502) is sleeved on the outer side of the plurality of first telescopic rods (501); A plurality of first inflatable cylinders (503), the plurality of first inflatable cylinders (503) are fixedly connected to the top of the contact ring (5), and a first push rod (504) is disposed inside the plurality of first inflatable cylinders (503), the first push rod (504) passes through the top of the first inflatable cylinder (503) and is slidably connected to the first inflatable cylinder (503), and the first push rod (504) is fixedly connected to the bottom of the positioning cylinder (3); A plurality of second inflatable cylinders (505), the plurality of second inflatable cylinders (505) are fixedly connected to the inside of the contact ring (5), and the plurality of second inflatable cylinders (505) are arranged in a ring shape around the center of the contact ring (5), and a connecting pipe is fixedly connected between one end of the plurality of contact rings (5) and the first inflatable cylinder (503); A second push rod (506) is slidably connected to the interior of the second inflatable cylinder (505), one end of the second push rod (506) passes through the second inflatable cylinder (505) and is slidably connected to the second inflatable cylinder (505), and one end of the second push rod (506) is fixedly connected to a clamping plate (507). When the first push rod (504) descends, the internal gas of the first inflatable cylinder (503) is injected into the interior of the second inflatable cylinder (505) through the connecting pipe, thereby pushing the second push rod (506) to extend, so that the clamping plate (507) clamps the gasket (10) in the center.

5. The automatic screw locking machine for assembling the lawn mower housing according to claim 4, characterized in that: A lower pressing plate (509) is slidably arranged inside the clamping plate (507), a second telescopic rod (508) and a second spring (510) are fixedly connected between the lower pressing plate (509) and the clamping plate (507), and the second spring (510) is sleeved on the outside of the second telescopic rod (508), and the lower pressing plate (509) is in contact with the top of the gasket (10).

6. The automatic screw locking machine for assembling the lawn mower housing according to claim 5, characterized in that: The drive assembly comprises: A second electric push rod (406) is fixedly connected to the top of the sliding seat (201), the telescopic end of the second electric push rod (406) is fixedly connected to the fixing frame (402), and the connecting rod (401) is rotatably connected to the bottom of the fixing frame (402); A first pulley (403) is rotatably connected to the bottom of the fixing frame (402), and the first pulley (403) is sleeved on the outside of the connecting rod (401), and the first pulley (403) is fixedly connected to the connecting rod (401); A second pulley (404) is rotatably connected to the bottom of the fixed frame (402), the second pulley (404) is connected to the first pulley (403) via a belt transmission, and a drive motor is fixedly connected to the top of the fixed frame (402), and an output shaft of the drive motor is fixedly connected to the second pulley (404).

7. The automatic screw locking machine for assembling a lawn mower housing according to claim 1, characterized in that: A sliding ring (8) is slidably connected inside the positioning cylinder (3), and the sliding ring (8) is arranged below the cleaning disk (7). A rotating ring (801) is rotatably connected inside the sliding ring (8), and a plurality of fixed plates (802) are fixedly connected inside the rotating ring (801).

8. The automatic screw locking machine for assembling the lawn mower housing according to claim 7, characterized in that: A fourth telescopic rod (803) is fixedly connected to one side of each of the plurality of fixed plates (802); a cleaning brush plate (804) is fixedly connected to one end of the fourth telescopic rod (803); a fourth spring (805) is sleeved on the outer side of the fourth telescopic rod (803); two ends of the fourth spring (805) are respectively fixedly connected to the cleaning brush plate (804) and the fixed plate (802); a second electromagnet (806) is fixedly connected to one side of the fixed plate (802); a magnetic plate (807) is fixedly connected to one side of the cleaning brush plate (804); and the second electromagnet (806) and the magnetic plate (807) are magnetically repelled from each other when energized.

9. The automatic screw locking machine for assembling the lawn mower housing according to claim 8, characterized in that: The bottom end of the positioning cylinder (3) is rotatably connected to a guide wheel (809), and the outside of the contact plate (601) is fixedly connected to a plurality of second traction steel wires (810). The second traction steel wires (810) pass through the sliding ring (8) and the guide wheel (809) and are finally fixedly connected to the bottom of the sliding ring (8). When the contact plate (601) rises, the sliding ring (8) is pulled down. The outside of the fixed plate (802) is fixedly connected to a sliding shaft (808). A spiral groove (811) is provided on the outside of the positioning cylinder (3), and the sliding shaft (808) extends to the inside of the spiral groove (811).

10. A method for automatically locking screws for assembling a lawn mower housing, applicable to an automatic screw locking machine for assembling a lawn mower housing as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The outer shell is transported to the bottom of the positioning cylinder (3) by a transport device, and the first electric push rod (202) is started, so that the first electric push rod (202) pushes the sliding seat (201) downward, so that the contact ring (5) at the top of the positioning cylinder (3) contacts the shell; Step 2: When the positioning cylinder (3) pushes the contact ring (5) to contact the housing, the pushing component inside the contact ring (5) clamps the gasket (10) in the center; Step 3: Push the first electromagnetic disk (4) downward through the driving assembly, adsorb the screw (9), and rotate it upward to pass through the cleaning disk (7) for cleaning; Step 4: When the first electromagnetic disk (4) pushes the contact disk (601) to rise, the positioning assembly continuously pushes the screw (9) to move to the center position. When the adjustment is completed, the first electromagnetic disk (4) descends and the screw (9) is assembled with the threaded hole.

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