Automatic feeder for electric screwdriver

Abstract

The application discloses an electric tool screwdriver machine self-tapping screw automatic feeder, which comprises a shell and an electric tool screwdriver machine, the shell comprises a left machine shell and a right machine shell, the left machine shell and the right machine shell are fixedly installed, the shell is detachably installed on the electric tool screwdriver machine, reset buttons are installed on the outer sides of the upper ends of the left machine shell and the right machine shell, the two reset buttons are symmetrically clamped in the left machine shell and the right machine shell, a third reset spring is installed between the two reset buttons, an adjusting nut is embeddedly installed at the upper end of the shell, spring sheets are arranged on the two sides of the adjusting nut, an adjusting bolt is installed in the adjusting nut, a spring seat is installed in the shell, a second reset spring is sleeved on the spring seat, a guide rail is rotatably arranged at the bottom of the shell, and the guide rail comprises a left guide rail and a right guide rail. The application solves the problem that the traditional electric screwdriver machine usually needs manual placement of screws, which not only reduces the work efficiency, but also increases the operation complexity and the error possibility.

Description

Technical Field

[0001] This invention relates to the field of power tool screwdrivers, and in particular to an automatic feeder for self-tapping screws in power tool screwdrivers. Background Technology

[0002] An electric screwdriver, also known as an electric screwdriver or electric screwdriver bit, is a power tool used to tighten or loosen screws. It is usually driven by a motor, which transmits rotational motion to the bit through a transmission system, thereby tightening or loosening the screw. In modern industrial production, the use of automated equipment is becoming increasingly widespread, especially on assembly lines. Automated tools can significantly improve production efficiency and reduce labor costs. Electric screwdrivers are a commonly used automated assembly tool.

[0003] However, traditional electric screwdrivers usually require manual placement of screws, which not only reduces work efficiency but also increases the complexity of operation and the possibility of errors.

[0004] To address this issue, this invention proposes an automatic screw feeder for power tool screwdrivers. This feeder automatically feeds screws into the screwdriver's chuck, automating the screw tightening process. Automatic feeding reduces manual operation, improves production efficiency, and minimizes quality issues caused by improper manual operation. The feeder can adapt to screws of different lengths via an adjustment mechanism. Furthermore, its structural design allows for quick installation and disassembly, facilitating maintenance and replacement. Using a specific screw belt and guide rail system, the feeder ensures a stable screw supply and correct positioning, thereby improving the automation and reliability of the entire assembly process, increasing the efficiency of the power screwdriver, and contributing to the modernization and intelligentization of industrial production. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an automatic feeder for self-tapping screws in electric screwdrivers, which solves the problem that traditional electric screwdrivers usually require manual placement of screws, which not only reduces work efficiency but also increases the complexity of operation and the possibility of errors.

[0006] To achieve the above objectives, this invention provides an automatic feeder for self-tapping screws on a power tool screwdriver, comprising a housing and a power tool screwdriver. The housing includes a left housing and a right housing, which are fixedly mounted and detachably mounted on the power tool screwdriver. The fixed mounting of the left and right housings provides a stable frame, ensuring the overall stability and durability of the automatic feeder. The detachable design makes maintenance and replacement more convenient and quick. Reset buttons are installed on the upper outer sides of both the left and right housings, symmetrically positioned within them. A third reset spring is installed between the two reset buttons. The reset buttons and the third reset spring ensure that the feeder automatically returns to its initial position after each screw is tightened, improving operational continuity and efficiency. An adjusting nut is embedded in the upper end of the housing, with spring plates on both sides of the adjusting nut. An adjusting bolt is installed inside the adjusting nut, allowing the adjusting nut and adjusting bolt to... The user adjusts the feeder according to the length of different screws, allowing it to adapt to screws of various sizes. A spring seat is installed inside the housing, and a second return spring is fitted on the spring seat. A guide rail is rotatably mounted on the bottom of the housing, including a left guide rail and a right guide rail. A right-back button is installed on the side wall of the left guide rail, and a left-back button is installed on the side wall of the right guide rail. The combination of the left guide rail, right guide rail, and front guide rail provides a stable feeding path, ensuring that the screw can be accurately fed to the bit position. A front guide rail is installed above the left and right guide rails and is fixedly mounted to the housing.

[0007] Furthermore, a front protective device is installed at the end of the front guide rail away from the housing, a guide sleeve is installed at the lower end of the housing, a left support plate is installed on the inner side of the left guide rail, a right support plate is installed on the inner side of the right guide rail, and a helical spring is installed at the bottom of the housing.

[0008] Furthermore, the right support plate and the left support plate are fixed by a second screw, and a first return spring is installed on the right support plate and the left support plate. The left support plate is fixed to the left guide rail by a first screw, and the right support plate is fixed to the right guide rail by a first screw. The combination of the left support plate and the right support plate with the first return spring provides additional stability and support for the feeder, ensuring the smoothness of screw delivery.

[0009] Furthermore, two third reset springs are provided, and the two third reset springs are installed at the upper and lower ends of the reset button. A rotating shaft is provided at the bottom of the housing, and the housing is rotatably connected to the guide rail through the rotating shaft. The rotating shaft enables the housing to be rotatably connected to the guide rail, which increases the flexibility of the feeder and facilitates the adjustment and alignment of the screw conveying path.

[0010] Furthermore, a pin is installed on the helical spring, a stop block is provided on one side of the second screw, and a stop spring is installed between the stop block and the second screw. The left and right housings are detachably installed and fixed. The stop block and stop spring provide a safe stopping mechanism to prevent the screw from being over-tightened or the feeder from moving improperly.

[0011] Furthermore, a hook spring is installed at the bottom end of the rotating shaft, a ratchet spring is provided on one side of the hook spring, and an E-ring is provided on the other side of the hook spring. The hook spring and the rotating shaft are fixed together by pins. The combination of the hook spring, ratchet spring and E-ring provides the feeder with additional stability and safety, ensuring smooth and safe operation.

[0012] Furthermore, a positioning component is provided between the right support plate and the left support plate, and a positioning spring is installed on one side of the positioning component. A roller is also installed between the right support plate and the left support plate, and bearing sleeves are respectively fitted at both ends of the roller. The positioning component and the positioning spring ensure the stability of the screw during the conveying process, and the setting of the roller and the bearing sleeves enables the screw to move smoothly on the guide rail.

[0013] Furthermore, a third screw is provided at the lower outer end of both the right and left support plates, and the right and left support plates are fixed to the roller by the third screw.

[0014] Furthermore, the power screwdriver is equipped with a motor, and a screwdriver bit is fixedly connected to the output end of the motor. An adapter that matches the screwdriver bit is installed on the power screwdriver. The screwdriver bit is installed with the power screwdriver through the adapter. The integrated design of the motor and the screwdriver bit enables the power screwdriver to tighten screws efficiently. The use of the adapter improves the compatibility of the screwdriver bit and the convenience of replacement.

[0015] Furthermore, labels are provided on the outer walls of both the left and right housings. The left and right housings are fixed together by a third screw. A nameplate is fixed on the top of the housing. The third, second, and first screws are all made of stainless steel. The surfaces of the springs are all coated with anti-rust oil. The labels and nameplates provide product information and operating instructions. The stainless steel screws and the anti-rust springs improve the product's durability and corrosion resistance.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Improve work efficiency: This invention reduces the need for manual screw placement by automatically feeding screws to the screwdriver bit, thereby significantly improving the work efficiency of the assembly line.

[0018] 2. Reduced operational complexity: The design of the automatic feeder reduces the number of manual operation steps, simplifies the operation process, and reduces operational complexity.

[0019] 3. Reduced possibility of errors: By reducing manual operation, the automatic feeder reduces screw tightening errors caused by improper manual operation, thus improving assembly quality.

[0020] 4. Adaptable to screws of different lengths: Through the design of adjusting nuts and adjusting bolts, the automatic feeder can adapt to screws of different lengths, increasing the versatility and flexibility of the equipment.

[0021] 5. Quick installation and removal: The detachable design of the housing allows the automatic feeder to be quickly installed on the power tool screwdriver, and it is also easy to disassemble for maintenance and replacement.

[0022] 6. Stable feed path: The combination of the left guide rail, right guide rail and front guide rail provides a stable feed path, ensuring that the screw can be accurately fed to the position of the bit.

[0023] 7. Automatic Reset Mechanism: The reset button and the third reset spring ensure that the feeder can automatically return to the initial position after each screw is tightened, improving the continuity and efficiency of operation.

[0024] 8. Safety Stop Mechanism: The stop block and stop spring provide a safe stop mechanism to prevent over-tightening of the screw or improper movement of the feeder.

[0025] 9. Additional stability and safety: The combination of hook spring, ratchet spring and E-ring provides the feeder with additional stability and safety, ensuring smooth and safe operation.

[0026] 10. Stability of positioning and conveying: The positioning components and positioning springs ensure the stability of the screw during the conveying process, and the rollers and bearing sleeves enable the screw to move smoothly on the guide rail.

[0027] 11. High-efficiency tightening capability: The integrated design of the motor and screwdriver bit enables the power screwdriver to tighten screws efficiently, and the use of the adapter improves the compatibility of the screwdriver bit and the convenience of replacement.

[0028] 12. Durability and corrosion resistance: Stainless steel screws and rust-proof springs enhance the product's durability and corrosion resistance, ensuring long-term stable use in various environments.

[0029] 13. Product Information and Operation Instructions: The labels and nameplates provide product information and operation instructions to help users understand and use the automatic feeder.

[0030] 14. The feeder of this invention can automatically feed screws into the chuck of a screwdriver, realizing an automated screw tightening process. Automatic feeding reduces manual operation, improves production efficiency, and reduces quality problems caused by improper manual operation. This automatic feeder can adapt to screws of different lengths through an adjustment mechanism. Furthermore, the feeder's structural design allows for quick installation and disassembly, facilitating maintenance and replacement. By using a specific screw belt and guide rail system, the feeder ensures a stable supply and correct positioning of screws, thereby improving the automation level and reliability of the entire assembly process, increasing the efficiency of the electric screwdriver, and contributing to the modernization and intelligentization of industrial production. Attached Figure Description

[0031] To more clearly illustrate the solutions in this invention, the accompanying drawings used in the description of the embodiments of this invention will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the FF structure provided by the present invention;

[0033] Figure 2 This is a schematic diagram of the DD structure provided by the present invention;

[0034] Figure 3 This is a schematic diagram of the AA structure provided by the present invention;

[0035] Figure 4 This is a schematic diagram of the BB structure provided by the present invention;

[0036] Figure 5 This is a schematic diagram of the EE or GG structure provided by the present invention;

[0037] Figure 6 This is an enlarged schematic diagram of part A provided by the present invention;

[0038] Figure 7 This is a schematic diagram of the nameplate structure provided by the present invention;

[0039] Figure 8 This is a schematic diagram of the bit structure provided by the present invention;

[0040] Figure 9 This is a first explosion diagram provided by the present invention;

[0041] Figure 10 This is a second explosion diagram provided by the present invention.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Front protective device; 2. Front guide rail; 3. First screw; 4. Stop spring; 5. Stop block; 6. Right rearward button; 7. Left rearward button; 8. Left guide rail; 9. Right guide rail; 10. First return spring; 11. Left support plate; 12. Right support plate; 13. Rotating shaft; 14. Pin; 15. Helical spring; 16. Hook spring; 17. Ratchet spring; 18. Pin; 19. E-ring; 20. Guide sleeve; 21. Positioning assembly; 22. Positioning spring; 23. Roller; 24. Bearing sleeve; 25. Second screw; 26. Third screw; 27. Second return spring; 28. Spring seat; 29. ​​Adjusting bolt; 30. Adjusting nut; 31. Spring plate; 32. Reset button; 33. Third return spring; 34. Left housing; 35. Right housing; 36. Nameplate; 37. Adapter; 38. Screwdriver bit; 39. Label. Detailed Implementation

[0044] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0046] Please see Figure 1-10An automatic feeder for self-tapping screws in an electric tool screwdriver includes a housing and an electric tool screwdriver. The housing includes a left housing 34 and a right housing 35, which are fixedly mounted. The housing is detachably mounted on the electric tool screwdriver. The beneficial effect is that the fixed mounting of the left housing 34 and the right housing 35 provides a stable frame, ensuring the overall stability and durability of the automatic feeder. The detachable design makes maintenance and replacement more convenient and quick. Usage: Users can easily install the housing onto or remove it from a power screwdriver for maintenance. Reset buttons 32 are installed on the upper outer sides of both the left and right housings 34 and 35, symmetrically positioned within them. A third reset spring 33 is installed between the two reset buttons 32. An adjusting nut 30 is embedded at the upper end of the housing, with spring plates 31 on both sides. An adjusting bolt 29 is installed inside the adjusting nut 30. Benefits: The adjusting nut 30 and adjusting bolt 29 allow users to adjust the feeder according to different screw lengths, enabling it to accommodate various screw sizes. Usage: Users can adjust the internal structure by rotating the adjusting nut 30 to accommodate screws of different lengths. A spring seat 28 is installed inside the housing, with a second reset spring 27 mounted on it. Benefits: The reset buttons 32 and the third reset spring 33 ensure the feeder is fully engaged each time a screw is tightened. It can automatically return to its initial position, improving the continuity and efficiency of operation. Usage: After tightening the screw, press the reset button 32. The force of the third reset spring 33 pushes it back to its original position, ready for the next feeding. The bottom of the housing is equipped with rotating guide rails, including a left guide rail 8 and a right guide rail 9. A right-back button 6 is installed on the side wall of the left guide rail 8, and a left-back button 7 is installed on the side wall of the right guide rail 9. Benefits: The combination of the left guide rail 8, right guide rail 9, and front guide rail 2 provides a stable conveying path, ensuring the screw can... The screw is accurately fed to the position of the bit 38. Usage: The screw enters through the front guide rail 2 and is accurately fed to the bottom of the bit 38 along the guide rails 8 and 9. The front guide rail 2 is installed above the left guide rail 8 and the right guide rail 9. The front guide rail 2 is fixed to the housing. The front protective device 1 is installed at the end of the front guide rail 2 away from the housing. The guide sleeve 20 is installed at the lower end of the housing. The left support plate 11 is installed on the inner side of the left guide rail 8 and the right support plate 12 is installed on the inner side of the right guide rail 9. The coil spring 15 is installed at the bottom of the housing.

[0047] As an improvement to the above technical solution, the right support plate 12 and the left support plate 11 are fixed by the second screw 25. The first return spring 10 is installed on the right support plate 12 and the left support plate 11. The left support plate 11 is fixed to the left guide rail 8 by the first screw 3, and the right support plate 12 is fixed to the right guide rail 9 by the first screw 3. The beneficial effect is that the combination of the left support plate 11 and the right support plate 12 with the first return spring 10 provides additional stability and support for the feeder, ensuring the smoothness of screw conveying. Usage: The support plate and spring system play a buffering and positioning role in the screw conveying process, ensuring the correct conveying of screws.

[0048] As an improvement to the above technical solution, two third reset springs 33 are provided. The two third reset springs 33 are installed at the upper and lower ends of the reset button 32. A rotating shaft 13 is provided at the bottom of the housing. The housing is rotatably connected to the guide rail through the rotating shaft 13. The beneficial effect is that the rotating shaft 13 allows the housing to be rotatably connected to the guide rail, which increases the flexibility of the feeder and makes it easier to adjust and align the screw feeding path. The method of use is that the design of the rotating shaft 13 allows the housing to be finely adjusted when needed to ensure that the screw can be smoothly fed to the bit 38.

[0049] As an improvement to the above technical solution, a pin 14 is installed on the helical spring 15, a stop block 5 is provided on one side of the second screw 25, and a stop spring 4 is installed between the stop block 5 and the second screw 25. The left housing 34 and the right housing 35 can be detachably installed and fixed. The beneficial effects are: the setting of the stop block 5 and the stop spring 4 provides a safe stopping mechanism to prevent the screw from being over-tightened or the feeder from moving improperly. Usage: when the screw is tightened to the predetermined torque, the stop block 5 will be triggered, and the force of the stop spring 4 will stop it from further tightening.

[0050] As an improvement to the above technical solution, a hook spring 16 is installed at the bottom of the rotating shaft 13. A ratchet spring 17 is provided on one side of the hook spring 16, and an E-ring 19 is provided on the other side of the hook spring 16. The hook spring 16 and the rotating shaft 13 are fixed together by a pin 18. The beneficial effects are: the combination of the hook spring 16, the ratchet spring 17 and the E-ring 19 provides the feeder with additional stability and safety, ensuring smooth and safe operation. Usage: these components play a supporting and stabilizing role at the bottom of the feeder, preventing accidental movement or damage during operation.

[0051] As an improvement to the above technical solution, a positioning component 21 is provided between the right support plate 12 and the left support plate 11. A positioning spring is installed on one side of the positioning component 21. A roller 23 is also installed between the right support plate 12 and the left support plate 11. Bearing sleeves 24 are respectively fitted at both ends of the roller 23. A third screw 26 is provided at the lower outer side of both the right support plate 12 and the left support plate 11. The right support plate 12 and the left support plate 11 are fixed to the roller 23 by the third screw 26. The beneficial effects are: the positioning component 21 and the positioning spring ensure the stability of the screw during the conveying process, and the setting of the roller 23 and the bearing sleeve 24 enables the screw to move smoothly on the guide rail. The usage method is: the positioning component and the spring system play a positioning and buffering role in the screw conveying process, while the roller and the bearing sleeve ensure the smooth conveying of the screw.

[0052] As an improvement to the above technical solution, a motor is installed inside the power screwdriver, and a screwdriver bit 38 is fixedly connected to the output end of the motor. An adapter 37 that matches the screwdriver bit 38 is installed on the power screwdriver. The screwdriver bit 38 is installed with the power screwdriver through the adapter 37. The beneficial effects are: the integrated design of the motor and the screwdriver bit 38 enables the power screwdriver to tighten screws efficiently, and the use of the adapter 37 improves the compatibility and ease of replacement of the screwdriver bit. Usage method: the user only needs to install the screwdriver bit 38 onto the adapter 37 to combine the power screwdriver with the automatic feeder to achieve automated tightening.

[0053] As an improvement to the above technical solution, labels 39 are provided on the outer walls of both the left housing 34 and the right housing 35. The left housing 34 and the right housing 35 are fixed by a third screw 26. A nameplate 36 is fixedly provided on the top of the housing. The third screw 26, the second screw 25, and the first screw 3 are all made of stainless steel. The surfaces of the springs are all coated with anti-rust oil. Beneficial effects: The label 39 and the nameplate 36 provide product information and operating instructions. The stainless steel screws and the anti-rust springs improve the product's durability and corrosion resistance. Usage: Users can learn about the product information through the label and nameplate. The stainless steel material and anti-rust treatment ensure the long-term stable use of the product in various environments.

[0054] Working principle and usage of this invention:

[0055] Working principle

[0056] Automatic feeding mechanism: The screws are fed through the internal guide rail system, left guide rail 8 and right guide rail 9. The screws are guided into the inside of the feeder through the front guide rail 2, ready to be grabbed by the screwdriver bit 38.

[0057] Reset button and spring system: The reset button 32 and the third reset spring 33 are used to restore the feeder to the initial position after the screw is tightened, in preparation for the next feeding. The upper and lower ends of the reset button 32 are respectively equipped with the third reset spring 33 to ensure that the reset button 32 can be reset stably.

[0058] Adjustment Mechanism: The adjusting nut 30 and adjusting bolt 29 allow the user to adjust the internal structure of the feeder to accommodate screws of different lengths. The spring plate 31 and the second return spring 27 provide the necessary elasticity for the adjustment mechanism, ensuring the stability and accuracy of the adjustment.

[0059] Positioning and securing: Positioning assembly 21 and positioning spring 22 ensure the stability of the screw during transport. The combination of roller 23 and bearing sleeve 24 allows the screw to move smoothly on the guide rail.

[0060] Drive and power transmission: The motor inside the power tool screwdriver drives the screwdriver bit 38, which is connected to the screwdriver bit via the adapter 37 to achieve automatic screw tightening. The output power of the motor is transmitted to the screw through the screwdriver bit 38 to complete the tightening action.

[0061] Automatic stop and safety mechanism: The stop block 5 and stop spring 4 are used to stop the motor after the screw is tightened to the predetermined torque to prevent over-tightening. The combination of E-ring 19 and hook spring 16 provides additional safety and ensures stability during operation.

[0062] How to use

[0063] First, secure the automatic feeder to the screwdriver using the two reset buttons 32, ensuring a stable connection. Insert the screw into the feeder via the left guide rail 8. The screw will automatically enter the feeder along the guide rail, ready to be gripped by the screwdriver bit 38. Adjust the internal structure of the feeder according to the screw length using the adjusting nut 30 and adjusting bolt 29 to ensure the screw is correctly gripped by the screwdriver bit. Start the electric screwdriver; the motor will drive the screwdriver bit 38 to automatically grip and tighten the screw. During tightening, the stop block 5 and stop spring 4 will ensure the screw is automatically stopped after reaching the predetermined torque. After tightening, the reset button 32 and the third reset spring 33 will automatically return the feeder to its initial position, ready for the next feed. Regularly inspect all components of the feeder, such as the springs, guide rails, and screws, to ensure they are functioning properly. If necessary, the feeder can be quickly disassembled for maintenance or replacement.

[0064] Based on the above working principle and usage method, the automatic screw feeder for self-tapping screws of the power tool screwdriver of the present invention can efficiently and accurately complete the automatic feeding and tightening of screws, greatly improving the automation level and production efficiency of the assembly line.

[0065] The following are two specific examples to demonstrate how this automatic self-tapping screw feeder for power tool screwdrivers can be applied in practical work.

[0066] Example 1: Industrial Assembly Line Application

[0067] Background: In automotive manufacturing or other industrial assembly lines, there is a need to tighten a large number of screws quickly and accurately. This embodiment describes how to integrate an automatic feeder into a power tool screwdriver to improve production efficiency.

[0068] The steps are as follows:

[0069] Install the automatic feeder: Secure the left housing 34 and right housing 35 to the power tool screwdriver using the third screw 26, ensuring a stable connection. Install the label 39 and nameplate 36 on the outer walls of the left housing 34 and right housing 35 to provide product information and operating instructions.

[0070] Adjust the feeder: Adjust the position of the adjusting bolt 29 by rotating the adjusting nut 30 according to the length of the screw to ensure that the bit 38 can correctly pick up the screw.

[0071] Screw feeding: The screw is loaded into the feeder through the front guide rail 2 and the left guide rail 8. The screw will automatically enter the feeder along the guide rails, ready to be picked up by the screwdriver bit 38.

[0072] Automatic screw tightening: When the electric screwdriver is started, the motor drives the screwdriver bit 38 to automatically pick up and tighten the screw. The stop block 5 and the stop spring 4 will ensure that the screw is tightened to the predetermined torque and then automatically stop.

[0073] Reset and prepare for the next feed: After tightening, the reset button 32 and the third reset spring 33 will automatically restore the feeder to the initial position, preparing for the next feed.

[0074] Maintenance and Replacement: Regularly inspect all components of the feeder, such as springs, guide rails, and screws, to ensure they are working properly. If necessary, the feeder can be quickly disassembled for maintenance or replacement.

[0075] Example 2: Application in furniture manufacturing

[0076] Background: Screws are used extensively in furniture manufacturing to assemble various components. This example describes how to utilize an automatic feeder to improve assembly speed and accuracy.

[0077] The steps are as follows:

[0078] Install the automatic feeder: Install the housing of the automatic feeder onto the power tool screwdriver, ensuring that the left housing 34 and the right housing 35 are secured.

[0079] Adjust the feeder: Adjust the adjusting nut 30 and adjusting bolt 29 according to the length of the furniture screws to accommodate screws of different lengths.

[0080] Screw feeding: The screw is loaded into the feeder through the front guide rail 2 and the left guide rail 8. The screw will automatically enter the feeder along the guide rails, ready to be picked up by the screwdriver bit 38.

[0081] Automatic screw tightening: When the electric screwdriver is started, the motor drives the screwdriver bit 38 to automatically pick up and tighten the screw. The stop block 5 and the stop spring 4 will ensure that the screw is tightened to the predetermined torque and then automatically stop.

[0082] Reset and prepare for the next feed: After tightening, the reset button 32 and the third reset spring 33 will automatically restore the feeder to the initial position, preparing for the next feed.

[0083] Maintenance and Replacement: Regularly inspect all components of the feeder, such as springs, guide rails, and screws, to ensure they are functioning properly. If necessary, the feeder can be quickly disassembled for maintenance or replacement.

[0084] These two examples demonstrate how automatic feeders can be used in various industrial applications, improving work efficiency and ease of operation by automating the screw delivery and tightening process.

[0085] The above description is only used to illustrate the technical solutions of the present invention, and is not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Any equivalent structural or procedural transformations made using the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. An automatic feeder for self-tapping screws in a power tool screwdriver, comprising a housing and a power tool screwdriver, characterized in that: The housing includes a left housing (34) and a right housing (35), which are fixedly mounted. The housing is detachably mounted on a power tool screwdriver. A reset button (32) is installed on the upper outer side of both the left housing (34) and the right housing (35). The two reset buttons (32) are symmetrically positioned inside the left housing (34) and the right housing (35). A third reset spring (33) is installed between the two reset buttons (32). An adjusting nut (30) is embedded in the upper end of the housing. Spring plates (31) are respectively provided on both sides of the adjusting nut (30). An adjusting bolt (29) is installed inside the adjusting nut (30). A spring seat (28) is installed inside the housing. A second return spring (27) is sleeved on the spring seat (28). A guide rail is rotatably provided at the bottom of the housing. The guide rail includes a left guide rail (8) and a right guide rail (9). A right-back button (6) is installed on the side wall of the left guide rail (8). A left-back button (7) is installed on the side wall of the right guide rail (9). A front guide rail (2) is installed above the left guide rail (8) and the right guide rail (9). The front guide rail (2) is fixedly installed to the housing. The end of the front guide rail (2) away from the housing is... A front protective device (1) is installed. A guide sleeve (20) is installed at the lower end of the housing. A left support plate (11) is installed on the inner side of the left guide rail (8). A right support plate (12) is installed on the inner side of the right guide rail (9). A helical spring (15) is installed at the bottom of the housing. The right support plate (12) and the left support plate (11) are fixed by a second screw (25). A first return spring (10) is installed on the right support plate (12) and the left support plate (11). The left support plate (11) is fixed to the left guide rail (8) by a first screw (3). The right support plate (12) is fixed by a first screw (3). The first screw (3) is fixed to the right guide rail (9). There are two third reset springs (33). The two third reset springs (33) are installed at the upper and lower ends of the reset button (32). A rotating shaft (13) is provided at the bottom of the housing. The housing is rotatably connected to the guide rail through the rotating shaft (13). A pin (14) is installed on the helical spring (15). A stop block (5) is provided on one side of the second screw (25). A stop spring (4) is installed between the stop block (5) and the second screw (25). The left housing (34) and the right housing (35) are detachably installed and fixed.

2. The automatic feeder for self-tapping screws in a power tool screwdriver according to claim 1, characterized in that: A hook spring (16) is installed at the bottom of the rotating shaft (13). A ratchet spring (17) is provided on one side of the hook spring (16), and an E-ring (19) is provided on the other side of the hook spring (16). The hook spring (16) and the rotating shaft (13) are fixed together by a pin (18).

3. The automatic feeder for self-tapping screws in a power tool screwdriver according to claim 2, characterized in that: A positioning component (21) is provided between the right support plate (12) and the left support plate (11). A positioning spring is installed on one side of the positioning component (21). A roller (23) is also installed between the right support plate (12) and the left support plate (11). Bearing sleeves (24) are respectively fitted at both ends of the roller (23).

4. The automatic feeder for self-tapping screws in a power tool screwdriver according to claim 3, characterized in that: The lower outer sides of the right support plate (12) and the left support plate (11) are each provided with a third screw (26), and the right support plate (12) and the left support plate (11) are fixed to the roller (23) by the third screw (26).

5. The automatic feeder for self-tapping screws in a power tool screwdriver according to claim 4, characterized in that: The electric screwdriver is equipped with a motor, and a screwdriver bit (38) is fixedly connected to the output end of the motor. An adapter (37) that cooperates with the screwdriver bit (38) is installed on the electric screwdriver. The screwdriver bit (38) is installed with the electric screwdriver through the adapter (37).

6. The automatic feeder for self-tapping screws in a power tool screwdriver according to claim 5, characterized in that: Labels (39) are provided on the outer walls of the left housing (34) and the right housing (35). The left housing (34) and the right housing (35) are fixed by a third screw (26). A nameplate (36) is fixedly provided on the top of the housing. The third screw (26), the second screw (25) and the first screw (3) are all made of stainless steel. The surface of the springs is coated with anti-rust oil.

Images