Self-tapping screw automatic feeder of electric tool screwdriver

Abstract

The invention discloses an electric tool screwdriver self-tapping screw automatic feeder which comprises a shell and an electric tool screwdriver, 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, and reset buttons are installed at the upper ends of the outer sides of the left machine shell and the right machine shell correspondingly; 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 installed at the upper end of the shell in an embedded mode, spring pieces are arranged on the two sides of the adjusting nut respectively, an adjusting bolt is installed in the adjusting nut, a spring seat is installed in the shell, and a second reset spring is arranged on the spring seat in a sleeving mode. According to the electric screw driver, the problems that according to a traditional electric screw driver, screws usually need to be placed manually, the working efficiency is reduced, and the operation complexity and the error possibility are increased are solved.

Description

Technical Field

[0001] The invention relates to the technical field of electric tool screwdrivers, in particular to an automatic feeder for self-tapping screws of an electric tool screwdriver. Background Art

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

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

[0004] In order to solve this problem, the present invention proposes an automatic feeder for self-tapping screws of an electric tool screwdriver. The feeder of the present invention can automatically feed screws into the chuck of the screwdriver to realize an automated screw tightening process. Through automatic feeding, manual operation can be reduced, production efficiency can be improved, and quality problems caused by improper manual operation can be reduced. The automatic feeder can adapt to screws of different lengths through an adjustment mechanism. In addition, the structural design of the feeder allows quick installation and disassembly, which is convenient for maintenance and replacement. By using a specific screw belt and guide rail system, the feeder can ensure a stable supply and correct positioning of the screws, thereby improving the automation level and reliability of the entire assembly process, improving the use efficiency of the electric screwdriver, and helping to promote the modernization and intelligence of industrial production. Summary of the invention

[0005] In view of the defects of the above-mentioned prior art, the purpose of the present invention is to provide an automatic feeder for self-tapping screws of an electric tool screwdriver, 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] In order to achieve the above-mentioned purpose, the present invention provides an automatic feeder for self-tapping screws of an electric tool screwdriver, comprising a shell and an electric tool screwdriver, wherein the shell comprises a left shell and a right shell, wherein the left shell and the right shell are fixedly mounted, and the shell can be detachably mounted on the electric tool screwdriver, and the fixed mounting of the left shell and the right shell provides a stable frame, thereby ensuring the overall stability and durability of the automatic feeder. The detachable design makes maintenance and replacement more convenient and quick, and a reset button is installed at the upper end of the outer side of the left shell and the right shell, and the two reset buttons are symmetrically arranged in the left shell and the right shell, and a third reset spring is installed between the two reset buttons, and the arrangement of the reset button and the third reset spring ensures that the feeder can automatically return to the initial position after each screw is tightened, thereby improving the continuity and efficiency of the operation, and an adjusting nut is embedded and installed at the upper end of the shell, and spring sheets are respectively arranged on both sides of the adjusting nut, and an adjusting bolt is installed in the adjusting nut, and the adjusting nut and the adjusting bolt allow The user can adjust according to the length of different screws so that the feeder can adapt to screws of various specifications. A spring seat is installed in the shell, and a second return spring is sleeved on the spring seat. A guide rail is rotatably set at the bottom of the shell, and the guide rail includes a left guide rail and a right guide rail. A right rear button is installed on the side wall of the left guide rail, and a left rear button is installed on the side wall of the right guide rail. The combination of the left guide rail, the right guide rail and the front guide rail provides a stable conveying path to ensure that the screws can be accurately conveyed to the position of the screw head. A front guide rail is installed above the left guide rail and the right guide rail, and the front guide rail is fixed to the shell.

[0007] Furthermore, a front protection device is installed at one end of the front guide rail away from the shell, a guide sleeve is installed at the lower end of the shell, 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 coil spring is installed at the bottom of the shell.

[0008] Furthermore, the right support plate and the left support plate are fixed by a second screw, 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 the first screw, and 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 the screw conveying.

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

[0010] Furthermore, a pin is installed on the coil spring, a stop block is provided on one side of the second screw, a stop spring is installed between the stop block and the second screw, the left housing and the right housing are detachably installed and fixed, and the setting of the stop block and the stop spring provides a safe stopping mechanism to prevent over-tightening of the screw or improper movement of the feeder.

[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-shaped ring is provided on the other side of the hook spring. The hook spring and the rotating shaft are fixed by pins. The combination of the hook spring, the ratchet spring and the E-shaped ring provides additional stability and safety for the feeder, ensuring smooth and safe operation.

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

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

[0014] Furthermore, a motor is installed in the electric tool screwdriver, a bit is fixedly connected to the output end of the motor, an adapter matching the bit is installed on the electric tool screwdriver, and the bit is installed on the electric tool screwdriver through the adapter. The integrated design of the motor and the bit enables the electric tool screwdriver to tighten screws efficiently, and the use of the adapter improves the compatibility of the bit and the convenience of replacement.

[0015] Furthermore, labels are provided on the outer walls of the left casing and the right casing, the left casing and the right casing are fixed by a third screw, a nameplate is fixed on the top of the casing, the third screw, the second screw and the first screw are all made of stainless steel, the surfaces of the above-mentioned springs are coated with anti-rust oil, the setting of labels and nameplates provides product information and operating instructions, and the stainless steel screws and rust-proofed springs improve the durability and corrosion resistance of the product.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

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

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

[0019] 3. Reduce the possibility of errors: Since manual operation is reduced, the automatic feeder reduces screw tightening errors caused by improper manual operation and improves assembly quality.

[0020] 4. Adapt 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 disassembly: The detachable design of the housing allows the automatic feeder to be quickly installed on the power tool screwdriver, and is also easy to disassemble for maintenance and replacement.

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

[0023] 7. Automatic reset mechanism: The setting of the reset button and the third reset spring ensures that the feeder can automatically return to the initial position after each screw tightening, improving the continuity and efficiency of operation.

[0024] 8. Safety stop mechanism: The setting of the stop block and the stop spring provides a safety stop mechanism to prevent over-tightening of the screws or improper movement of the feeder.

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

[0026] 10. Stability of positioning and transportation: The positioning assembly and positioning spring ensure the stability of the screw during transportation. The setting of the roller and bearing sleeve enables the screw to move smoothly on the guide rail.

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

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

[0029] 13. Product information and operating instructions: The setting of labels and nameplates provides product information and operating instructions, making it easier for users to understand and use the automatic feeder.

[0030] 14. The feeder of the present invention can automatically feed the screws into the chuck of the screwdriver to realize the automated screw tightening process. Through automatic feeding, manual operation can be reduced, production efficiency can be improved, and quality problems caused by improper manual operation can be reduced. The automatic feeder can adapt to screws of different lengths through the adjustment mechanism. In addition, the structural design of the feeder allows for quick installation and disassembly, which is convenient for maintenance and replacement. By using a specific screw belt and guide rail system, the feeder can ensure a stable supply and correct positioning of the screws, thereby improving the automation level and reliability of the entire assembly process, improving the use efficiency of the electric screwdriver, and helping to promote the modernization and intelligence of industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the scheme in the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

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

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

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

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

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

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

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

[0040] Fig. 9 It is a first explosion schematic diagram provided by the present invention;

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

[0042] Description of reference numerals:

[0043] 1. Front guard; 2. Front guide rail; 3. First screw; 4. Stop spring; 5. Stop block; 6. Right rear button; 7. Left rear 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. Coil 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 sheet; 32. Reset button; 33. Third return spring; 34. Left housing; 35. Right housing; 36. Nameplate; 37. Adapter; 38. Batch head; 39. Label. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described in detail below in conjunction with 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 making a clearer and more explicit definition of the protection scope of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0045] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order.

[0046] See also Figure 1-10, an automatic feeder for self-tapping screws of an electric tool screwdriver, including a shell and an electric tool screwdriver, the shell including a left shell 34 and a right shell 35, the left shell 34 and the right shell 35 are installed and fixed, and the shell can be detachably installed on the electric tool screwdriver, beneficial effects: the fixed installation of the left shell 34 and the right shell 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. Instructions for use: The user can easily install the shell on the power tool screwdriver as needed, or remove it from the screwdriver for maintenance. Reset buttons 32 are installed on the upper ends of the outer sides of the left shell 34 and the right shell 35. The two reset buttons 32 are symmetrically arranged in the left shell 34 and the right shell 35. A third reset spring 33 is installed between the two reset buttons 32. An adjusting nut 30 is embedded and installed on the upper end of the shell. Spring sheets 31 are respectively arranged on both sides of the adjusting nut 30. An adjusting bolt 29 is installed in the adjusting nut 30. Beneficial effects: The adjusting nut 30 and the adjusting bolt 29 allow the user to adjust according to the length of different screws, so that the feeder can adapt to screws of various specifications. Instructions for use: The user can adjust the internal structure by rotating the adjusting nut 30 to adapt to screws of different lengths. A spring seat 28 is installed in the shell, and a second reset spring 27 is sleeved on the spring seat 28. Beneficial effects: The setting of the reset button 32 and the third reset spring 33 ensures that the feeder is tightened each time the screw is tightened. After that, it can automatically return to the initial position, which improves the continuity and efficiency of the operation. How to use: After the screw is tightened, the reset button 32 is pressed, and the force of the third reset spring 33 pushes it back to its original position, ready for the next feeding. The bottom of the shell is rotatably provided with a guide rail, which includes a left guide rail 8 and a right guide rail 9. The side wall of the left guide rail 8 is installed with a right rear button 6, and the side wall of the right guide rail 9 is installed with a left rear button 7. Beneficial effect: The combination of the left guide rail 8, the right guide rail 9 and the front guide rail 2 provides a stable conveying path to ensure that the screw can It can be accurately transported to the position of the screwdriver bit 38. Method of use: the screw enters through the front guide rail 2, and is accurately transported to the bottom of the screwdriver bit 38 along the guidance of the left guide rail 8 and the right guide rail 9; the front guide rail 2 is installed above the left guide rail 8 and the right guide rail 9, and the front guide rail 2 is fixed to the shell, and the front guard device 1 is installed at the end of the front guide rail 2 away from the shell, and a guide sleeve 20 is installed at the lower end of the shell, a left support plate 11 is installed on the inner side of the left guide rail 8, and a right support plate 12 is installed on the inner side of the right guide rail 9, and a coil spring 15 is installed at the bottom of the shell.

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

[0048] As an improvement of the above technical solution, two third reset springs 33 are provided, and 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 shell, and the shell is rotatably connected to the guide rail through the rotating shaft 13. Beneficial effects: the rotating shaft 13 enables the shell to be rotatably connected to the guide rail, increases the flexibility of the feeder, and facilitates adjustment and alignment of the screw conveying path. Usage method: The design of the rotating shaft 13 allows the shell to be fine-tuned when necessary to ensure that the screw can be smoothly conveyed to the screw head 38.

[0049] As an improvement of the above technical solution, a pin 14 is installed on the coil spring 15, a stop block 5 is arranged on one side of the second screw 25, a stop spring 4 is installed between the stop block 5 and the second screw 25, and the left housing 34 and the right housing 35 are detachably installed and fixed. Beneficial effects: the setting of the stop block 5 and the stop spring 4 provides a safe stopping mechanism to prevent over-tightening of the screw or improper movement of the feeder. Method of use: when the screw is tightened to a 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 of the above technical solution, a hook spring 16 is installed at the bottom end of the rotating shaft 13, a ratchet spring 17 is provided on one side of the hook spring 16, and an E-type ring 19 is provided on the other side of the hook spring 16. The hook spring 16 and the rotating shaft 13 are fixed by a pin 18. Beneficial effects: the combination of the hook spring 16, the ratchet spring 17 and the E-type ring 19 provides additional stability and safety for the feeder, ensuring smooth and safe operation. Instructions for use: These components support and stabilize the bottom of the feeder to prevent accidental movement or damage during operation.

[0051] As an improvement of the above technical solution, a positioning component 21 is arranged between the right support plate 12 and the left support plate 11, and 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, and bearing sleeves 24 are respectively sleeved on both ends of the roller 23. The outer lower ends of the right support plate 12 and the left support plate 11 are provided with third screws 26, and the right support plate 12 and the left support plate 11 are fixed to the roller 23 by the third screws 26. Beneficial effects: 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. Usage: the positioning component and the spring system play a positioning and buffering role in the screw conveying process, and the roller and the bearing sleeve ensure the smooth conveying of the screw.

[0052] As an improvement of the above technical solution, a motor is installed in the electric tool screwdriver, and a screw bit 38 is fixedly connected to the output end of the motor. An adapter 37 matching the screw bit 38 is installed on the electric tool screwdriver, and the screw bit 38 is installed with the electric tool screwdriver through the adapter 37. Beneficial effects: the integrated design of the motor and the screw bit 38 enables the electric tool screwdriver to tighten screws efficiently. The use of the adapter 37 improves the compatibility and convenience of replacement of the screw bit. Method of use: the user only needs to install the screw bit 38 on the adapter 37 to combine the electric tool screwdriver with the automatic feeder to achieve automated tightening.

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

[0054] Working principle and use method of the present invention:

[0055] How it works

[0056] Automatic feeding mechanism: The screws are fed by the internal guide system of left and right guides 8 and 9. The screws are guided to the inside of the feeder by the front guide 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 its initial position after the screws are tightened, in preparation for the next feeding. The third reset springs 33 are respectively installed at the upper and lower ends of the reset button 32 to ensure that the reset button 32 can be reset stably.

[0058] Adjustment mechanism: The adjustment nut 30 and the adjustment bolt 29 allow the user to adjust the internal structure of the feeder according to the length of the screw to adapt to screws of different lengths. The spring sheet 31 and the second return spring 27 provide the necessary elastic force for the adjustment mechanism to ensure the stability and accuracy of the adjustment.

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

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

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

[0062] How to use

[0063] First, the automatic feeder is fixed to the screwdriver through the two reset buttons 32 to ensure that the connection between the feeder and the screwdriver is stable. The screw is loaded into the feeder through the left guide rail 8. The screw will automatically enter the feeder along the guide rail and be ready to be grabbed by the screwdriver 38. According to the length of the screw, the internal structure of the feeder is adjusted by adjusting the nut 30 and the adjusting bolt 29 to ensure that the screw can be correctly grabbed by the screwdriver. Start the electric screwdriver, and the motor will drive the screwdriver 38 to automatically grab the screw and tighten it. During the tightening process, the stop block 5 and the stop spring 4 will ensure that the screw stops automatically after being tightened to the predetermined torque. After tightening is completed, the reset button 32 and the third reset spring 33 will automatically restore the feeder to the initial position to prepare for the next feeding. Regularly check the various components of the feeder, such as springs, guide rails and screws, to ensure their normal operation. If necessary, the feeder can be quickly disassembled for maintenance or replacement.

[0064] Through the above working principle and use method, the automatic feeder for self-tapping screws of the electric tool screwdriver of the present invention can efficiently and accurately complete the automatic conveying and tightening of screws, greatly improving the automation level and production efficiency of the assembly line.

[0065] The following are two specific embodiments to demonstrate how to apply the electric tool screwdriver self-tapping screw automatic feeder in actual work.

[0066] Example 1: Industrial assembly line application

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

[0068] Here are the steps:

[0069] Install the automatic feeder: fix the left housing 34 and the right housing 35 to the power tool screwdriver by the third screw 26 to ensure a firm connection, install the label 39 and the nameplate 36 on the outer wall of the left housing 34 and the right housing 35 to provide product information and operation instructions.

[0070] Adjust the feeder: Depending on the length of the screw, adjust the position of the adjusting bolt 29 by turning the adjusting nut 30 to ensure that the bit 38 can properly grasp the screw.

[0071] Feeding screws: Load the screws into the feeder through the front guide rail 2 and the left guide rail 8. The screws will automatically enter the feeder along the guide rails and be ready to be grabbed by the screwdriver bit 38.

[0072] Automatic screw tightening: Start the electric screwdriver, the motor drives the screw bit 38 to automatically grab the screw and tighten it, and the stop block 5 and the stop spring 4 will ensure that the screw stops automatically after being tightened to a predetermined torque.

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

[0074] Maintenance and Replacement: Regularly check the various parts of the feeder, such as springs, guides and screws, to ensure they are functioning properly and, if necessary, quickly disassemble the feeder for maintenance or replacement.

[0075] Example 2: Furniture manufacturing application

[0076] Background: In the furniture manufacturing process, a large number of screws are needed to assemble various parts. This embodiment describes how to use an automatic feeder to improve assembly speed and accuracy.

[0077] Here are the steps:

[0078] Install the automatic feeder: Install the housing of the automatic feeder on the electric tool screwdriver, and ensure that the left housing 34 and the right housing 35 are fixed.

[0079] Adjust the feeder: According to the length of the furniture screws, adjust the adjusting nut 30 and the adjusting bolt 29 to adapt to screws of different lengths.

[0080] Feeding screws: Load the screws into the feeder through the front guide rail 2 and the left guide rail 8. The screws will automatically enter the feeder along the guide rails and be ready to be grabbed by the screwdriver bit 38.

[0081] Automatic screw tightening: Start the electric screwdriver, the motor drives the screw bit 38 to automatically grab the screw and tighten it, and the stop block 5 and the stop spring 4 will ensure that the screw stops automatically after being tightened to a predetermined torque.

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

[0083] Maintenance and Replacement: Regularly check the various parts of the feeder, such as springs, guides and screws, to ensure they are working 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 different 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 solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solution described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic feeder for self-tapping screws of an electric tool screwdriver, comprising a housing and an electric tool screwdriver, characterized in that: The housing comprises a left housing (34) and a right housing (35), the left housing (34) and the right housing (35) are fixedly mounted, and the housing can be detachably mounted on the electric tool screwdriver. A reset button (32) is mounted on the upper outer ends of the left housing (34) and the right housing (35), and two reset buttons (32) are symmetrically mounted in the left housing (34) and the right housing (35). A third reset spring (33) is mounted between the two reset buttons (32). An adjusting nut (30) is embedded in the upper end of the housing, and two sides of the adjusting nut (30) are respectively provided with a spring. A spring sheet (31) is arranged, an adjusting bolt (29) is installed in the adjusting nut (30), a spring seat (28) is installed in the shell, a second return spring (27) is sleeved on the spring seat (28), a guide rail is rotatably arranged at the bottom of the shell, the guide rail comprises a left guide rail (8) and a right guide rail (9), a right backward button (6) is installed on the side wall of the left guide rail (8), a left backward 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), and the front guide rail (2) is fixedly installed on the shell.

2. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 1, characterized in that: A front guard device (1) is installed at one end of the front guide rail (2) away from the shell, a guide sleeve (20) is installed at the lower end of the shell, 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), and a coil spring (15) is installed at the bottom of the shell.

3. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 2, characterized in that: The right support plate (12) and the left support plate (11) are fixedly mounted by a second screw (25); a first return spring (10) is mounted on the right support plate (12) and the left support plate (11); the left support plate (11) is fixedly mounted to the left guide rail (8) by a first screw (3); and the right support plate (12) is fixedly mounted to the right guide rail (9) by the first screw (3).

4. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 3, characterized in that: Two third reset springs (33) are provided, and 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 shell, and the shell is rotatably connected to the guide rail through the rotating shaft (13).

5. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 4, characterized in that: A pin (14) is installed on the coil 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), and the left housing (34) and the right housing (35) are detachably installed and fixed.

6. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 5, characterized in that: A hook spring (16) is installed at the bottom end of the rotating shaft (13), a ratchet spring (17) is arranged on one side of the hook spring (16), an E-shaped ring (19) is arranged on the other side of the hook spring (16), and the hook spring (16) and the rotating shaft (13) are fixedly installed by a pin (18).

7. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 6, characterized in that: A positioning assembly (21) is arranged between the right supporting plate (12) and the left supporting plate (11), a positioning spring is installed on one side of the positioning assembly (21), and a roller (23) is also installed between the right supporting plate (12) and the left supporting plate (11), and bearing sleeves (24) are respectively sleeved on both ends of the roller (23).

8. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 7, characterized in that: A third screw (26) is provided at the outer lower end of the right support plate (12) and the left support plate (11), and the right support plate (12) and the left support plate (11) are mounted and fixed to the roller (23) via the third screw (26).

9. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 8, characterized in that: A motor is installed in the electric tool screwdriver, and a screwdriver bit (38) is fixedly connected to the output end of the motor. An adapter (37) matching the screwdriver bit (38) is installed on the electric tool screwdriver, and the screwdriver bit (38) is installed on the electric tool screwdriver through the adapter (37).

10. The automatic feeder for self-tapping screws of an electric tool screwdriver according to claim 9, characterized in that: The outer walls of the left housing (34) and the right housing (35) are both provided with labels (39); 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; and the surfaces of the springs are all coated with anti-rust oil.

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