Double-station automatic screw locking machine for hedge shear shell assembly

Abstract

The invention relates to a double-station automatic screw locking machine for hedge shear shell assembly, and belongs to the technical field of screw locking, the double-station automatic screw locking machine for hedge shear shell assembly comprises an electrical cabinet, a control module, a screw locking mechanism and an oil injection mechanism. Through the arrangement of the oil injection mechanism, when the oil injection sleeve is in contact with the reserved hole site, the oil injection mechanism injects oil, lubricating oil is injected into the outer surface of the screw and the contact part of the screw and the screw locking rod through the oil injection sleeve, dry friction between the screw and the hole wall of the reserved hole site is changed into wet friction, the friction resistance is reduced, and the screw locking efficiency is improved; meanwhile, the temperature generated in the screw locking process is reduced, the end of the screw locking rod is well protected, the probability of deformation of the screw locking rod and the top of the screw is reduced, and therefore the probability of screw loosening of the end of the screw is reduced, the probability of rusting of the screw can be reduced through lubricating oil smeared on the outer surface of the screw, and the service life of the screw is prolonged. Therefore, subsequent disassembly of the hedge shear shell is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of screw fastening technology, specifically relating to a dual-station automatic screw fastening machine for assembling the housing of hedge trimmers. Background Technology

[0002] The steps for assembling and screwing the hedge trimmer housing are as follows: Loading: The operator or upstream equipment places the hedge trimmer housing into a dedicated fixture; Positioning: (If a vision system is included) The camera takes a picture, identifies the hole coordinates, and sends feedback to the motion control system for position compensation; Screw Feeding: The control system issues a command, and the screw feeder delivers screws one by one; Screw Removal: The electric screwdriver descends, and the magnetic or pneumatic suction device inside the screwdriver bit holds the screw; Tightening: The motion mechanism moves the electric screwdriver precisely above the first screw hole, then descends to begin tightening. The servo electric screwdriver monitors the torque and angle in real time, stopping when the set value is reached; Repeat: The motion mechanism moves sequentially to all screw holes according to a preset program; Completion and Unloading: Once all screws are tightened, the system issues a "complete" signal, the fixture is released, and the operator or automated equipment removes the product. The system simultaneously records the tightening data for future reference.

[0003] Currently, existing automatic screw-fastening machines for assembling hedge trimmer housings typically tighten screws directly into predetermined holes in the trimmer housing. However, during the screw-fastening process, there are squeezing and sliding frictions. The friction can cause the screw head and the screw contact area to be squeezed and deformed, leading to stripping of the screw. This results in the screw failing to tighten the trimmer housing or the screw becoming damaged and unusable, leading to low screw-fastening efficiency. Based on this, a dual-station automatic screw-fastening machine for assembling hedge trimmer housings is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a well-designed dual-station automatic screw fastening machine for assembling hedge trimmer housings in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A dual-station automatic screw fastening machine with a hedge trimmer housing assembly includes an electrical box. A control module is fixedly connected to the top of the electrical box. A first electric slide is fixedly connected to the top of the electrical box. A mounting frame is fixedly connected to the first electric slide. A motion module is fixedly connected to the mounting frame. Two sliders are mounted on the motion module. A second electric slide is fixedly connected to each of the two sliders. A mounting frame is fixedly connected to the second electric slide. A feeding box is fixedly connected to the top of the electrical box. The machine also includes: A screw-locking mechanism fixedly connected within the mounting bracket for tightening screws; An oiling mechanism for injecting oil into screws is fixedly connected to a mounting bracket. The oiling mechanism includes an oiling sleeve that is slidably connected to the mounting bracket. A second spring is fitted on the outer surface of the oiling sleeve. The two ends of the second spring are fixedly connected to the mounting bracket and the oiling sleeve, respectively. An oiling pipe is fixedly connected to the top of the oiling sleeve. The feeding mechanism and the feeding mechanism are installed on the feeding box.

[0006] As a further optimization of the present invention, the screw-locking mechanism includes a telescopic rod fixedly connected to the top of the mounting bracket, a first spring sleeved on the outer surface of the telescopic rod, a screw-locking motor fixedly connected to the bottom of the telescopic rod, and a screw-locking rod fixedly connected to the output end of the screw-locking motor.

[0007] As a further optimization of the present invention, the two ends of the first spring are fixedly connected to the mounting bracket and the locking motor, respectively. The locking rod passes through the oil injection sleeve, and the axes of the locking rod and the oil injection sleeve coincide. The oil discharge end of the oil injection pipe is connected to the gap between the locking rod and the oil injection sleeve.

[0008] As a further optimization of the present invention, the oil injection mechanism further includes an oil tank fixedly connected to the top of the mounting frame, an oil pump fixedly connected to the side wall of the oil tank, an oil delivery pipe fixedly connected to the end of the oil pump, a corrugated pipe fixedly connected to the end of the oil delivery pipe, and the end of the corrugated pipe fixedly connected to the end of the oil injection pipe.

[0009] As a further optimization of the present invention, the top of the electrical box is equipped with a clamp for clamping the assembled hedge trimmer housing. The clamp includes a slide groove formed on the top of the electrical box, an electric lead screw installed in the slide groove, a clamping plate threaded through the electric lead screw, the clamping plate being slidably connected to the slide groove, and a clamping seat fixedly connected to the top of the electrical box, the clamping plate being slidably connected to the clamping seat.

[0010] As a further optimization of the present invention, the feeding mechanism includes a dual-axis motor fixedly connected to the outer surface of the feeding box, a first synchronous pulley fixedly connected to one output end of the dual-axis motor, a feeding disc rotatably connected to one end of the feeding box, feeding plates and a second synchronous pulley fixedly connected to both sides of the feeding disc, and a first synchronous belt tensioned between the first synchronous pulley and the second synchronous pulley.

[0011] As a further optimization of the present invention, the feeding mechanism includes a third synchronous wheel fixedly connected to the other output end of the dual-axis motor, a feeding roller rotatably connected through the feeding box, a fourth synchronous wheel fixedly connected to one end of the feeding roller, a second synchronous belt tensioned between the third synchronous wheel and the fourth synchronous wheel, a feeding brush fixedly connected to the outer surface of the feeding roller, and a wire shaking assembly fixedly connected to the outer surface of the feeding roller.

[0012] As a further optimization of the present invention, the shaking assembly includes a cam fixedly connected to the outer surface of the feeding roller, a limiting frame fixedly connected inside the feeding box, a lifting frame slidably connected inside the limiting frame, the lifting frame being adapted to the cam, a storage net fixedly connected to the bottom of the lifting frame, the storage net being in contact with the inner surface of the feeding box, and a feeding rod fixedly connected to the top of the storage net.

[0013] As a further optimization of the present invention, an ash hopper is inserted into the feeding box, the ash hopper is positioned directly opposite the storage mesh, a conveyor frame is fixedly connected inside the feeding box, the end of the feeding roller is rotatably connected to the conveyor frame, the conveyor frame extends into the feeding tray, and the feeding rod is inserted into the conveyor frame.

[0014] As a further optimization of the present invention, a drive motor is fixedly connected inside the feeding box, and a feeding roller is fixedly connected to the output end of the drive motor. The outer surface of the feeding roller is provided with a plurality of feeding holes. The feeding roller is in contact with the end of the conveying frame, and the upper surface of the feeding roller is in the same horizontal plane as the upper surface of the conveying frame. The feeding roller passes through the feeding box and is in contact with the feeding box.

[0015] The beneficial effects of this invention are as follows: 1. This invention, through the setting of an oil injection mechanism, injects oil when the oil injection sleeve contacts the reserved hole. The lubricating oil is injected through the oil injection sleeve into the outer surface of the screw and the part where the screw contacts the locking screw rod, changing the dry friction between the screw and the wall of the reserved hole into wet friction, reducing frictional resistance, improving the efficiency of screw locking, reducing the temperature generated during screw locking, and providing good protection for the end of the locking screw rod, reducing the probability of deformation of the locking screw rod and the top of the screw, thereby reducing the probability of stripping the screw end. Furthermore, the lubricating oil applied to the outer surface of the screw can reduce the probability of the screw rusting, thus facilitating the subsequent disassembly of the hedge trimmer housing.

[0016] 2. The present invention ensures the stability of the screw during movement by setting up an oil-filled sleeve, preventing the screw from detaching from the end of the locking rod under the influence of strong winds and inertial forces generated during movement. When the end of the locking rod is not attached to the screw, the locking rod can be protected to prevent it from being scratched by external objects, which could cause deformation or damage to the end of the locking rod.

[0017] 3. The present invention uses a spiral-shaped feeding brush to remove screws with non-downward-pointing tips from the upper surface of the conveyor frame. At the same time, because the feeding brush is spiral-shaped, it can convey the screws when rotating, allowing the screws to move towards the upper roller and enter the feeding hole of the upper roller, which facilitates the subsequent screw removal operation of the locking screw.

[0018] 4. This invention, through the setting of the screw-shaking component, causes the screw to vibrate, shaking off particulate impurities adhering to the outer surface of the screw. The shaken-off particulate impurities will fall into the ash hopper, preventing the pre-reserved holes of the hedge trimmer housing from cracking under the pressure of particulate impurities and the screw during the screw-locking process. This would prevent the screw from being able to fully tighten the hedge trimmer housing, thus effectively protecting the hedge trimmer housing and ensuring the quality of screw-locking the hedge trimmer housing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the back of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the electrical box after it has been removed according to the present invention; Figure 4 This is a three-dimensional structural diagram of the screw-locking mechanism and the oil-filling mechanism of the present invention; Figure 5 This is a cross-sectional view of the screw-locking mechanism of the present invention. Figure 6 This is a three-dimensional structural diagram of the feeding box of the present invention; Figure 7 This is a three-dimensional structural diagram of the feeding mechanism of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the feeding box of the present invention.

[0020] In the diagram: 1. Electrical box; 2. Control module; 3. First electric slide; 4. Fixture; 5. Motion module; 6. Slider; 7. Second electric slide; 8. Mounting frame; 9. Fixture; 91. Electric lead screw; 92. Clamping plate; 93. Clamping seat; 94. Slide groove; 10. Screw locking mechanism; 101. Telescopic rod; 102. First spring; 103. Screw locking motor; 104. Screw locking rod; 11. Oil injection mechanism; 111. Oil tank; 112. Oil pump; 113. Oil delivery pipe; 114. Corrugated pipe; 115. Oil injection pipe; 116. Oil injection sleeve; 117. Second... 12. Spring; 13. Feeding box; 14. Ash hopper; 15. Feeding mechanism; 16. Dual-shaft motor; 17. First synchronous pulley; 18. First synchronous belt; 19. Second synchronous pulley; 20. Feeding tray; 21. Feeding plate; 22. Conveyor frame; 23. Feeding mechanism; 24. Third synchronous pulley; 25. Second synchronous belt; 26. Fourth synchronous pulley; 27. Feeding roller; 28. Feeding brush; 29. ​​Cam; 20. Lifting frame; 21. Storage net; 22. Limiting frame; 23. Feeding rod; 24. Drive motor; 25. Feeding roller. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a dual-station automatic screw fastening machine for assembling hedge trimmer housings includes an electrical box 1. A control module 2 is fixedly connected to the top of the electrical box 1. The control module 2 is used to control the operation of the dual-station automatic screw fastening machine. A first electric slide 3 is fixedly connected to the top of the electrical box 1. A fixing frame 4 is fixedly connected to the first electric slide 3. A motion module 5 is fixedly connected to the fixing frame 4. Two sliders 6 are installed on the motion module 5. The two sliders 6 on the motion module 5 can move towards each other or relative to each other, or one slider 6 can move while the other slider 6 does not move (this is prior art and will not be described in detail). A second electric slide 7 is fixedly connected to each of the two sliders 6. A mounting bracket 8 is fixedly connected to the second electric slide 7. A feeding box 12 is fixedly connected to the top of the electrical box 1. A clamping device for clamping the assembled hedge trimmer housing is installed on the top of the electrical box 1. The fixture 9 includes a slide groove 94 on the top of the electrical box 1, an electric lead screw 91 installed in the slide groove 94, a clamping plate 92 threaded through the electric lead screw 91, the clamping plate 92 slidably connected to the slide groove 94, a clamping seat 93 fixedly connected to the top of the electrical box 1, the clamping plate 92 slidably connected to the clamping seat 93, a screw-locking mechanism 10 fixedly connected in the mounting frame 8, the screw-locking mechanism 10 including a telescopic rod 101 fixedly connected to the top of the mounting frame 8, a first spring 102 sleeved on the outer surface of the telescopic rod 101, a screw-locking motor 103 fixedly connected to the bottom of the telescopic rod 101, the two ends of the first spring 102 fixedly connected to the mounting frame 8 and the screw-locking motor 103 respectively, a screw-locking rod 104 fixedly connected to the output end of the screw-locking motor 103, the screw-locking rod 104 having magnetic properties to attract screws.

[0023] When using, place the two assembled hedge trimmer housings in the same direction on the clamping seat 93, as follows: Figure 1As shown, the electric lead screw 91 is then activated, causing the clamping plate 92 to slide outward along the slide groove 94. This clamps the assembled hedge trimmer housing via the clamping plate 92 and clamping seat 93. At this point, the feeding box 12 can be activated to deliver the screw, and the first electric slide 3, motion module 5, and second electric slide 7 are activated, causing the locking screw 104 to reach directly above the screw and descend to magnetically attract it. After the screw is attracted, the locking screw 104 moves to directly above the pre-drilled hole in the assembled hedge trimmer housing. Then, the second electric slide 7 is activated, causing the mounting bracket 8 to move downward until the screw enters the hole. Finally, the locking motor 103 is activated. The locking screw 104 rotates to lock the screw into the assembled hedge trimmer housing. During the screw-locking process, the telescopic rod 101 and the first spring 102 are designed to allow the locking screw 104 to disengage from the screw when it is tightened, preventing the screw from continuing to move downwards and causing damage to the assembled hedge trimmer housing under the pressure generated by the downward movement of the screw. The screws are tightened in all the reserved holes of the assembled hedge trimmer housing until they are all locked. Then, the electric screw 91 can be activated so that the clamping plate 92 can no longer clamp the hedge trimmer housing through the clamping seat 93. The hedge trimmer housing can then be removed after the screws are tightened. The above steps can be repeated when tightening the screws again.

[0024] like Figure 3 , Figure 4 and Figure 5 As shown, an oiling mechanism 11 for injecting oil into screws is fixedly connected to the mounting bracket 8. The oiling mechanism 11 includes an oiling sleeve 116 that is slidably connected to the mounting bracket 8. A second spring 117 is fitted on the outer surface of the oiling sleeve 116. The two ends of the second spring 117 are fixedly connected to the mounting bracket 8 and the oiling sleeve 116, respectively. An oiling pipe 115 is fixedly connected to the top of the oiling sleeve 116. A locking screw 104 passes through the oiling sleeve 116, and the locking screw 104 and the oiling sleeve 116 are connected. The axes coincide, the oil discharge end of the oil injection pipe 115 is connected to the gap between the locking screw 104 and the oil injection sleeve 116, the top of the mounting bracket 8 is fixedly connected to the oil tank 111, the top of the oil tank 111 is installed with the oil filling pipe, the side wall of the oil tank 111 is fixedly connected to the oil pump 112, the end of the oil pump 112 is fixedly connected to the oil delivery pipe 113, the end of the oil delivery pipe 113 is fixedly connected to the corrugated pipe 114, and the end of the corrugated pipe 114 is fixedly connected to the end of the oil injection pipe 115.

[0025] When removing screws from the feed box 12, the oiling sleeve 116 first contacts the upper surface of the feed box 12. As the mounting bracket 8 moves downwards, the oiling sleeve 116 moves upwards under the action of the feed box 12 until the locking rod 104 attracts the screw. Then, the mounting bracket 8 moves upwards, causing the locking rod 104 to remove the screw from the feed box 12 under magnetic attraction. During this process, the oiling sleeve 116 moves downwards under the action of the second spring 117, completely covering the outer surface of the screw. Then, the first electric slide 3 and the moving... The movement of module 5 causes the locking screw 104 to reach directly above the reserved hole. During this process, the oil injection sleeve 116 ensures the stability of the screw during movement, preventing the screw from coming off the end of the locking screw 104 due to strong winds or inertial forces generated during movement. When the end of the locking screw 104 is not attached to the screw, the oil injection sleeve 116 protects the locking screw 104 during movement, preventing it from being scratched by external objects and causing deformation or damage to the end of the locking screw 104. When the locking screw 104 reaches directly above the reserved hole and begins to move downwards, the oil injection sleeve 116 will first contact the reserved hole. As the locking screw 104 continues to move downwards, the oil pump 112 is activated, causing the oil pump 112 to draw the lubricating oil in the oil tank 111 into the oil delivery pipe 113, and then inject it into the oil injection sleeve 116 through the bellows pipe 114 and the oil injection pipe 115. This allows the lubricating oil to be injected into the outer surface of the screw and the part of the screw that contacts the locking screw 104 through the oil injection sleeve 116, changing the dry friction between the screw and the reserved hole wall into wet friction, reducing frictional resistance, improving the efficiency of screw locking, reducing the temperature generated during screw locking, and providing good protection for the end of the locking screw 104, reducing the probability of deformation of the top of the locking screw 104 and the screw, thereby reducing the probability of stripping the screw end. Furthermore, the lubricating oil applied to the outer surface of the screw can reduce the probability of the screw rusting, thus facilitating the subsequent disassembly of the hedge trimmer housing.

[0026] like Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, a feeding mechanism 14 is installed on the feeding box 12, and a conveyor frame 15 is fixedly connected inside the feeding box 12. The feeding mechanism 14 includes a dual-axis motor 141 fixedly connected to the outer surface of the feeding box 12. One output end of the dual-axis motor 141 is fixedly connected to a first synchronous pulley 142. One end of the feeding box 12 is rotatably connected to a feeding disc 145. The conveyor frame 15 extends into the feeding disc 145. Feeding plates 146 and second synchronous pulleys 144 are fixedly connected to both sides of the feeding disc 145, respectively. A first synchronous belt 143 is tensioned between the first synchronous pulley 142 and the second synchronous pulley 144.

[0027] When feeding screws, the dual-axis motor 141 is started, which drives the feeding plate 145 to rotate through the first synchronous pulley 142, the first synchronous belt 143 and the second synchronous pulley 144, thereby causing the feeding plate 146 to rotate and transport the screws into the conveyor frame 15.

[0028] like Figure 6 , Figure 7 and Figure 8 As shown, a feeding mechanism 16 is installed on the feeding box 12. The feeding mechanism 16 includes a third synchronous pulley 161 fixedly connected to the other output end of the dual-shaft motor 141. A feeding roller 164 is rotatably connected through the feeding box 12. The end of the feeding roller 164 is rotatably connected to the conveyor frame 15. A fourth synchronous pulley 163 is fixedly connected to one end of the feeding roller 164. A second synchronous belt 162 is tensioned between the third synchronous pulley 161 and the fourth synchronous pulley 163. A feeding brush 165 in a spiral form is fixedly connected to the outer surface of the feeding roller 164. A feeding brush 165 is fixedly connected inside the feeding box 12. A drive motor 17 is connected, and the output end of the drive motor 17 is fixedly connected to a feeding roller 18. The outer surface of the feeding roller 18 has multiple feeding holes. The feeding roller 18 is designed to facilitate the feeding of screws to the screw picking station. This is because screws will accumulate on the conveyor frame 15. If the screws are not transferred by the feeding roller 18, the locking rod 104 may pick up multiple screws at once. The feeding roller 18 is in contact with the end of the conveyor frame 15, and the upper surface of the feeding roller 18 is in the same horizontal plane as the upper surface of the conveyor frame 15. The feeding roller 18 passes through the feeding box 12 and is in contact with the feeding box 12.

[0029] During the screw feeding process, the dual-axis motor 141 also drives the third synchronous pulley 161 to rotate, which in turn drives the feeding roller 164 to rotate through the second synchronous belt 162 and the fourth synchronous pulley 163, causing the feeding brush 165 to rotate. The spiral feeding brush 165 will push the screws with their pointed ends not facing down away from the upper surface of the conveyor frame 15. At the same time, since the feeding brush 165 is set in a spiral shape, it can transport the screws when rotating, so that the screws can move towards the feeding roller 18. The screws gradually accumulate on the conveyor frame 15 and are pushed onto the feeding roller 18, so that the screws can directly enter the feeding hole of the feeding roller 18 without the need for external driving, which facilitates the subsequent screw removal operation of the locking screw 104.

[0030] like Figure 6 , Figure 7 and Figure 8As shown, a shaking assembly is fixedly connected to the outer surface of the feeding roller 164. The shaking assembly includes a cam 166 fixedly connected to the outer surface of the feeding roller 164. A limit frame 169 is fixedly connected inside the feeding box 12. A lifting frame 167 is slidably connected inside the limit frame 169. The lifting frame 167 is adapted to the cam 166. A storage net 168 is fixedly connected to the bottom of the lifting frame 167. The storage net 168 is in contact with the inner surface of the feeding box 12. A ash hopper 13 is inserted into the feeding box 12. The ash hopper 13 is positioned directly opposite the storage net 168. A feeding rod 1610 is fixedly connected to the top of the storage net 168. The feeding rod 1610 is inserted into the conveyor frame 15.

[0031] During the screw feeding process, the rotation of the feeding roller 164 will drive the cam 166 to rotate, which in turn causes the lifting frame 167 to move up and down along the inner surface of the limiting frame 169 under the action of the cam 166, causing the storage net 168 to move up and down, which in turn causes the screw to move up and down within the storage net 168, causing the screw to vibrate and shake off the particulate impurities adhering to the outer surface of the screw. The shaken-off particulate impurities will fall into the ash hopper 13, preventing the presence of particulate impurities from causing the reserved holes of the hedge shear shell to crack under the squeezing action of particulate impurities and screws during the screw tightening process, thus preventing the screw from fully tightening the hedge shear shell, thereby effectively protecting the hedge shear shell and ensuring the quality of screw tightening of the hedge shear shell; In addition, the material storage mesh 168 will drive the material feeding rod 1610 to move up and down during the up and down movement, pushing the screws, and at the same time, the screws with the pointed end not facing down will change position under the action of the up and down movement of the material feeding rod 1610.

[0032] The specific working principle of this invention is as follows: When using, place the two assembled hedge trimmer housings in the same direction on the clamping seat 93, as follows: Figure 1 As shown, the electric screw 91 is then activated to make the clamping plate 92 slide outward along the slide groove 94, thereby clamping and fixing the assembled hedge shear housing through the clamping plate 92 and the clamping seat 93. At this time, the feeding box 12 can be activated to deliver the screws. When feeding screws, start the dual-axis motor 141, so that the dual-axis motor 141 drives the feeding plate 145 to rotate through the first synchronous pulley 142, the first synchronous belt 143 and the second synchronous pulley 144, thereby causing the feeding plate 146 to rotate and transport the screws into the conveyor frame 15. Simultaneously, the dual-axis motor 141 drives the third synchronous pulley 161 to rotate, which in turn drives the feeding roller 164 to rotate via the second synchronous belt 162 and the fourth synchronous pulley 163. This causes the feeding brush 165 to rotate. The spiral feeding brush 165 will push the screws with their pointed ends not facing down away from the upper surface of the conveyor frame 15. Since the feeding brush 165 is spiral-shaped, it can transport the screws when rotating, allowing them to move towards the feeding roller 18. The screws gradually accumulate on the conveyor frame 15 and are pushed onto the feeding roller 18, allowing them to directly enter the feeding hole of the feeding roller 18 without external drive. After the screws enter the feeding hole, the drive motor 17 is started to rotate the feeding roller 18 by 90 degrees, transporting the screws in the feeding hole to the screw removal station, facilitating the subsequent screw removal operation of the locking screw 104. Furthermore, the rotation of the feeding roller 164 will drive the cam 166. The rotation causes the lifting frame 167 to move up and down along the inner surface of the limiting frame 169 under the action of the cam 166, which in turn causes the storage net 168 to move up and down, and the screw to move up and down within the storage net 168. This causes the screw to vibrate, shaking off the particulate impurities adhering to the outer surface of the screw. The shaken-off particulate impurities will fall into the ash hopper 13, preventing the pre-reserved holes of the hedge trimmer housing from cracking under the pressure of the particulate impurities and the screw during the screw tightening process. This would prevent the screw from being fully tightened on the hedge trimmer housing, thus protecting the hedge trimmer housing and ensuring the quality of screw tightening. In addition, the up and down movement of the storage net 168 will drive the push rod 1610 to move up and down, pushing the screw. At the same time, the screw with the tip not facing down will change position under the action of the up and down movement of the push rod 1610. After the screw reaches the screw-picking station, the first electric slide 3, motion module 5, and second electric slide 7 are activated, causing the locking screw 104 to reach directly above the screw-picking station and descend to magnetically attract the screw. When picking up the screw from the loading box 12, the oiling sleeve 116 will first contact the upper surface of the loading box 12. As the mounting bracket 8 moves downward, the oiling sleeve 116 will move upward under the action of the loading box 12 until the locking screw 104 attracts the screw. Then, the mounting bracket 8 moves upward, causing the locking screw 104 to remove the screw from the loading box 12 under the action of magnetic attraction. During this process, the oiling sleeve 116 will move downward under the action of the second spring 117. This allows the oil filling sleeve 116 to completely cover the outer surface of the screw. Then, the first electric slide 3 and the motion module 5 move, causing the locking rod 104 to reach directly above the reserved hole. During this process, the oil filling sleeve 116 ensures the stability of the screw during movement, preventing the screw from detaching from the end of the locking rod 104 due to strong winds or inertial forces generated during movement. When the end of the locking rod 104 is not attached to the screw, the oil filling sleeve 116 protects the locking rod 104 during movement, preventing it from being scratched by external objects and causing deformation or damage to the end of the locking rod 104. After the screw is attracted, the locking rod 104 moves to directly above the pre-drilled hole in the assembled hedge trimmer housing. Then, the second electric slide 7 is activated, causing the mounting bracket 8 to move downwards until the screw enters the hole. Next, the locking motor 103 is activated, causing the locking rod 104 to rotate and lock the screw into the assembled hedge trimmer housing. When the locking rod 104 reaches directly above the pre-drilled hole and begins to move downwards, the oil injection sleeve 116 will first contact the pre-drilled hole. As the locking rod 104 continues to move downwards, the oil pump 112 is activated, drawing lubricating oil from the oil tank 111 into the oil delivery pipe 113. This lubricating oil is then injected into the oil injection sleeve 116 through the bellows pipe 114 and the oil injection pipe 115. This allows the lubricating oil to be injected into the outer surface of the screw and the contact area between the screw and the locking rod 104, changing the dry friction between the screw and the pre-drilled hole wall to wet friction, reducing frictional resistance, improving screw-locking efficiency, and reducing the risk of over-locking. The temperature generated during the process is controlled, and the end of the locking screw 104 is well protected, reducing the probability of deformation of the locking screw 104 and the top of the screw, thereby reducing the probability of stripping of the screw end. In addition, the lubricating oil applied to the outer surface of the screw can reduce the probability of the screw rusting, thus facilitating the subsequent disassembly of the hedge trimmer housing. When the screw contacts the hole, the oil pump 112 is turned off. During the screw tightening process, the setting of the telescopic rod 101 and the first spring 102 can make the locking screw 104 disengage from the screw when the screw is tightened, preventing the screw from continuing to move down and causing damage to the assembled hedge trimmer housing under the squeezing force generated by the downward movement of the screw. The screws are tightened in the reserved holes of the assembled hedge trimmer housing until they are all tightened. Then the electric screw 91 can be activated so that the clamping plate 92 can no longer clamp and fix the hedge trimmer housing through the clamping seat 93. The hedge trimmer housing after tightening the screw can then be removed. The above steps can be repeated when tightening the screw again.

[0033] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A dual-station automatic screw fastening machine for assembling a hedge trimmer housing, comprising an electrical box, a control module, a first electric slide, a fixed frame, a motion module, a slider, a second electric slide, a mounting frame, and a feeding box, characterized in that, Also includes: A screw-locking mechanism fixedly connected within the mounting bracket for tightening screws; An oiling mechanism for injecting oil into screws is fixedly connected to a mounting bracket. The oiling mechanism includes an oiling sleeve that is slidably connected to the mounting bracket. A second spring is fitted on the outer surface of the oiling sleeve. The two ends of the second spring are fixedly connected to the mounting bracket and the oiling sleeve, respectively. An oiling pipe is fixedly connected to the top of the oiling sleeve. The feeding mechanism and the feeding mechanism are installed on the feeding box.

2. The dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 1, characterized in that: The screw-locking mechanism includes a telescopic rod fixedly connected to the top of the mounting bracket. A first spring is sleeved on the outer surface of the telescopic rod. A screw-locking motor is fixedly connected to the bottom of the telescopic rod, and a screw-locking rod is fixedly connected to the output end of the screw-locking motor.

3. The dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 2, characterized in that: The two ends of the first spring are fixedly connected to the mounting bracket and the locking motor, respectively. The locking rod passes through the oil injection sleeve, and the axes of the locking rod and the oil injection sleeve coincide. The oil discharge end of the oil injection pipe is connected to the gap between the locking rod and the oil injection sleeve.

4. The dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 1, characterized in that: The oil injection mechanism also includes an oil tank fixedly connected to the top of the mounting frame. An oil pump is fixedly connected to the side wall of the oil tank. An oil delivery pipe is fixedly connected to the end of the oil pump. A corrugated pipe is fixedly connected to the end of the oil delivery pipe. The end of the corrugated pipe is fixedly connected to the end of the oil injection pipe.

5. The dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 1, characterized in that: The top of the electrical box is equipped with a clamp for clamping the assembled hedge trimmer housing. The clamp includes a groove on the top of the electrical box, an electric lead screw installed in the groove, a clamping plate threaded through the electric lead screw, the clamping plate being slidably connected to the groove, and a clamping seat fixedly connected to the top of the electrical box, the clamping plate being slidably connected to the clamping seat.

6. The dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 1, characterized in that: The feeding mechanism includes a dual-axis motor fixedly connected to the outer surface of the feeding box. One output end of the dual-axis motor is fixedly connected to a first synchronous pulley. One end of the feeding box is rotatably connected to a feeding disc. Feeding plates and second synchronous pulleys are fixedly connected to both sides of the feeding disc, respectively. A first synchronous belt is tensioned between the first synchronous pulley and the second synchronous pulley.

7. The dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 6, characterized in that: The feeding mechanism includes a third synchronous pulley fixedly connected to the other output end of the dual-axis motor. A feeding roller is rotatably connected through the feeding box. A fourth synchronous pulley is fixedly connected to one end of the feeding roller. A second synchronous belt is tensioned between the third and fourth synchronous pulleys. A feeding brush is fixedly connected to the outer surface of the feeding roller. A wire shaking assembly is fixedly connected to the outer surface of the feeding roller.

8. The dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 7, characterized in that: The shaking assembly includes a cam fixedly connected to the outer surface of the feeding roller, a limiting frame fixedly connected inside the feeding box, a lifting frame slidably connected inside the limiting frame, the lifting frame being adapted to the cam, a storage net fixedly connected to the bottom of the lifting frame, the storage net being in contact with the inner surface of the feeding box, and a feeding rod fixedly connected to the top of the storage net.

9. A dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 8, characterized in that: A hopper is inserted into the feeding box, and the hopper is positioned directly opposite the storage mesh. A conveyor frame is fixedly connected inside the feeding box. The end of the feeding roller is rotatably connected to the conveyor frame. The conveyor frame extends into the feeding tray, and the feeding rod is inserted into the conveyor frame.

10. A dual-station automatic screw fastening machine for assembling a hedge trimmer housing according to claim 9, characterized in that: A drive motor is fixedly connected inside the feeding box. A feeding roller is fixedly connected to the output end of the drive motor. Multiple feeding holes are opened on the outer surface of the feeding roller. The feeding roller is in contact with the end of the conveyor frame, and the upper surface of the feeding roller is in the same horizontal plane as the upper surface of the conveyor frame. The feeding roller passes through the feeding box and is in contact with the feeding box.

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