Protective device for automatic screw driving machine
By designing a protective device consisting of a support plate, motor, and hollow protective plate on the automatic screw driving machine, the safety risks to workers during the drilling process are resolved, achieving stability and safety protection for the drill bit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEDER PRECISION TECH (TIANJIN) CO LTD
- Filing Date
- 2025-02-18
- Publication Date
- 2026-04-24
AI Technical Summary
The lack of drill bit protection devices in existing automatic screw driving machines poses a safety risk to workers during operation.
A protective device was designed, comprising a support plate, a motor, a drill bit, a fixing rod, and a hollow protective plate. The motor controls the extension and retraction of the drill bit and the retraction of the hollow protective plate to prevent the drill bit from shifting during processing and to retract after completion to protect the drill bit and the workers.
It effectively prevents the drill bit from shifting due to vibration during processing and from causing injury to workers, while protecting the drill bit itself and improving operational safety and stability.
Smart Images

Figure CN224157993U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protection for automatic screw driving machines, specifically a protective device for automatic screw driving machines. Background Technology
[0002] The automatic screw-driving equipment drives all screws in one go. The entire process, including product conveying, positioning, screw placement, and screw feeding, is completed automatically by the equipment. It utilizes pneumatic and PLC technology to achieve automated operation, resulting in high efficiency.
[0003] Existing screw-driving machine heads lack protective devices for drill bits, and during operation, workers need to place materials inside the device for fixation. The internal components of the device can easily injure workers, posing a certain safety risk. Therefore, we propose a protective device for automatic screw-driving machines to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this utility model is to provide a protective device for an automatic screw driving machine, including a support plate, a motor, a drill bit, a fixing rod, and a hollow protective plate. The fixing rod is connected through both sides of the support plate inside the fixing frame to fix and limit the stability of the drill bit when it falls. After processing is completed, the drill bit is retracted into the hollow protective plate to protect the drill bit and the operator, preventing the operator from being injured or damaging the drill bit due to mistakes.
[0005] To achieve the above objectives, a protective device for an automatic screwdriver is provided, comprising a housing, a fixed base fixedly connected to the rear bottom of the housing's inner cavity, second sliding grooves on both sides of the bottom of the housing's inner cavity, a first slider slidably connected inside the second sliding grooves, a worktable fixedly connected above the first slider, a first handle fixedly connected to the front center of the worktable, a limit groove on the front bottom of the housing's inner cavity, a limit rod movably connected inside the limit groove, a control block movably connected above the fixed base, a fixed frame fixedly connected to the front end of the control block, a power supply frame fixedly connected above the inner cavity of the fixed frame, a telescopic rod fixedly connected to one end of the power supply frame, a support plate fixedly connected to the extension end of the telescopic rod, a motor fixedly connected to the lower center of the support plate, a drill bit fixedly connected to the drive end of the motor, fixed rods penetrating through the lower sides of the support plate, a hollow protective plate fixedly connected below the fixed rods, the bottom of the hollow protective plate fixedly connected to the fixed frame, and the motor and drill bit penetratingly engaged with the hollow protective plate.
[0006] According to the protective device for an automatic screw driving machine, infrared sensors are fixedly connected to both sides of the inner cavity of the box near the workbench. A groove is provided in the middle of the upper part of the workbench. Several first sliding grooves are provided on both sides of the upper part of the workbench near the groove. Several rotating shafts are provided inside the groove.
[0007] According to the aforementioned protective device for an automatic screw driving machine, a second slider is slidably connected inside the first slide groove, and a support column is fixedly connected above each of the second sliders.
[0008] According to the aforementioned protective device for an automatic screwdriver, a push plate is fixedly connected above the support column, and cylinders are fixedly connected to both ends of the upper part of the worktable.
[0009] According to the protective device for an automatic screwdriver, the extension end of the cylinder is fixedly connected to one side of the push plate, and an anti-slip pad is fixedly connected to the other side of the push plate.
[0010] According to the aforementioned protective device for an automatic screwdriver, a first slider is fixedly connected to both sides of the lower part of the worktable, and a baffle is fixedly connected to the upper rear side of the worktable.
[0011] According to the aforementioned protective device for an automatic screwdriver, a window frame is movably connected to the front of the housing, and a second handle is fixedly connected to one side below the window frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model is equipped with a support plate, a motor, a drill bit, a fixing rod, and a hollow protective plate. The power supply frame inside the fixing frame controls the telescopic rod to push the support plate downward. The fixing rod is connected through both sides of the support plate. The two can be used to fix and limit the stability of the drill bit when it falls, and prevent the drill bit from deviating due to vibration during the fall. After the processing is completed, the power supply frame will control the telescopic rod to reset. Then the support plate will drive the motor and the drill bit back into the hollow protective plate, protecting the drill bit and the workers, and preventing the workers from being injured or damaging the drill bit due to mistakes.
[0014] 2. This utility model is equipped with: a second sliding groove, a first sliding block, a limiting groove, a limiting rod, and a first handle. The first handle uses the second sliding groove and the first sliding block to pull the worktable out of the box, thereby fixing the material to be processed externally and protecting the workers. After the material is fixed in the processing area of the worktable, the first handle is used again to send the worktable back into the box. Then, the limiting groove at the front of the worktable is movably connected to the limiting rod to restrict the position of the worktable, so as to stabilize the worktable inside the box and prevent the worktable from moving due to vibration caused by processing materials, thereby enhancing the safety and stability of the device during operation.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the structure of a protective device for an automatic screwdriver according to the present invention;
[0018] Figure 2 This is a front view of a protective device for an automatic screwdriver according to the present invention;
[0019] Figure 3 This is a schematic diagram of the workbench structure of a protective device for an automatic screwdriver according to the present invention;
[0020] Figure 4 This is a schematic diagram of the operation of the worktable of the protective device for an automatic screw driving machine according to this utility model.
[0021] Figure 5 This is a partial sectional view of the fixing frame of the protective device for an automatic screw driving machine according to this utility model.
[0022] In the diagram: 1. Box body; 2. Fixed base; 3. Workbench; 4. Groove; 5. First slide groove; 6. Rotating shaft; 7. Support column; 8. Push plate; 9. Anti-slip pad; 10. Cylinder; 11. Infrared sensor; 12. First handle; 13. Second slide groove; 14. First slider; 15. Window frame; 16. Second handle; 17. Limit groove; 18. Limit rod; 19. Second slider; 20. Baffle; 21. Fixed frame; 22. Power supply frame; 23. Telescopic rod; 24. Support plate; 25. Motor; 26. Fixed rod; 27. Hollow protective plate; 28. Drill bit; 29. Control block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-5This utility model provides a technical solution: a protective device for an automatic screwdriver, including a housing 1 with transparent glass fixed on three sides for observing the normal operation of the device. A fixed base 2 is fixedly connected to the rear bottom of the inner cavity of the housing 1 for fixing a drill bit 28 and other devices. Infrared sensors 11 are fixedly connected to both sides of the inner cavity of the housing 1 near the worktable 3. If the operator accidentally puts their arm into the housing 1 during operation, an emergency brake will be applied, forcibly stopping the drill bit 28. A worktable 3 is fixedly connected above a first slider 14. A groove 4 is formed in the middle of the upper part of the worktable 3. Several first sliding grooves 5 are formed on both sides of the upper part of the worktable 3 near the groove 4. Second sliders 19 are slidably connected inside the first sliding grooves 5, allowing the worktable 3 to move back and forth within the housing 1. Support columns 7 are fixedly connected above each of the second sliders 19. Push plates 8 are fixedly connected above the support columns 7. The upper ends of the worktable 3 are fixedly connected to... A cylinder 10 is connected to control the reciprocating motion of the push plate 8. The extension end of the cylinder 10 is fixedly connected to one side of the push plate 8. An anti-slip pad 9 is fixedly connected to the other side of the push plate 8 to fix the material to be processed and prevent the material from falling off and moving. Several rotating shafts 6 are set inside the groove 4. A window frame 15 is movably connected to the front of the box 1. A second handle 16 is fixedly connected to one side below the window frame 15 to open the window frame 15 at the front of the box 1. A second slide groove 13 is opened on both sides of the bottom of the inner cavity of the box 1. A first slider 14 is slidably connected inside the second slide groove 13. A first slider 14 is fixedly connected to both sides below the worktable 3. A window frame 15 is movably connected to the front of the box 1. A second handle 16 is fixedly connected to one side below the window frame 15. A baffle 20 is fixedly connected to the rear side above the worktable 3. A first handle 12 is fixedly connected to the middle front of the worktable 3, which can pull the worktable 3 out of the box 1 to realize the reciprocating movement of the worktable 3.
[0025] A limiting groove 17 is provided on the front side of the bottom of the inner cavity of the housing 1. A limiting rod 18 is movably connected inside the limiting groove 17 to fix the worktable 3 inside the housing 1 and prevent it from moving due to vibrations generated during processing. A control block 29 is movably connected above the fixed base 2. A fixed frame 21 is fixedly connected to the front end of the control block 29 to fix the power supply frame 22 and the hollow protective plate 27 inside the fixed frame 21. The power supply frame 22 is fixedly connected above the inner cavity of the fixed frame 21 to control the telescopic movement of the telescopic rod 23. One end of the power supply frame 22 is fixedly connected to the telescopic rod 23, and the extension end of the telescopic rod 23 is fixedly connected to... The support plate 24 is used to limit the position of the fixing rod 26 and cooperates with the fixing rod 26. The motor 25 is fixedly connected to the lower center of the support plate 24 to control the operation of the drill bit 28. The drive end of the motor 25 is fixedly connected to the drill bit 28. The fixing rods 26 are connected through the lower sides of the support plate 24 to fix and limit the falling position of the drill bit 28. The hollow guard plate 27 is fixedly connected to the lower part of the fixing rod 26 to protect the drill bit 28 and the operator. The bottom of the hollow guard plate 27 is fixedly connected to the fixing frame 21. The motor 25 and the drill bit 28 are connected through the hollow guard plate 27.
[0026] Working principle: During operation, the operator pulls the second handle 16 on the window frame 15 to open the front window frame 15 of the box 1 upwards. Then, using the first handle 12, the workbench 3 is pulled out of the box 1 through the sliding connection between the second slide groove 13 and the first slider 14. After being pulled out, the workbench 3 has a groove 4 with a rotating shaft 6 inside. The operator simply places the material to be processed onto the rotating shaft 6 and pushes the material to the baffle 20. Since several support columns 7 are fixedly connected to the bottom of the push plate 8, and the second slider 19 is fixedly connected to the bottom of the support columns 7, the cylinders 10 on both sides of the workbench 3 push the push plate 8 to the material to be processed. Because an anti-slip pad 9 is fixedly connected to one side of the push plate 8, the material is fixed in the processing area of the workbench 3. Then, using the first handle 12, the workbench 3 is returned to the box 1. The limiting groove 17 and limiting rod 18 in front of the workbench 3 fix the workbench 3 in the housing 1 to prevent it from moving due to vibrations generated during processing. During processing, the power frame 22 in the fixed frame 21 controls the telescopic rod 23 to push the support plate 24 downward. The baffle 20 has fixing rods 26 on both sides that pass through the support plate 24, which can be used to fix and limit the stability of the drill bit 28 when it falls. Then the support plate 24 drives the motor 25 below and the drill bit 28 to descend in the hollow area inside the hollow protective plate 27 to complete the processing of the screw. The housing 1 is equipped with an infrared sensor 11. When working, if the worker accidentally puts his arm into the housing 1, it will brake in an emergency and force the drill bit 28 to stop. After processing is completed, the power frame 22 controls the telescopic rod 23 to reset, that is, the drill bit 28 will be retracted into the hollow protective plate 27 to protect the drill bit 28 and the worker.
[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A protective device for an automatic screwdriver, comprising a housing (1), characterized in that, A fixed base (2) is fixedly connected to the rear side of the bottom of the inner cavity of the box (1). A second sliding groove (13) is provided on both sides of the bottom of the inner cavity of the box (1). A first slider (14) is slidably connected inside the second sliding groove (13). A workbench (3) is fixedly connected above the first slider (14). A first handle (12) is fixedly connected to the front center of the workbench (3). A limit groove (17) is provided on the front side of the bottom of the inner cavity of the box (1). A limit rod (18) is movably connected inside the limit groove (17). A control block (29) is movably connected above the fixed base (2). A fixed frame (21) is fixedly connected to the front end of the control block (29). A power supply frame (22) is fixedly connected above the inner cavity of (21). A telescopic rod (23) is fixedly connected to one end of the power supply frame (22). A support plate (24) is fixedly connected to the extension end of the telescopic rod (23). A motor (25) is fixedly connected to the lower middle part of the support plate (24). A drill bit (28) is fixedly connected to the drive end of the motor (25). Fixed rods (26) are connected through the lower sides of the support plate (24). A hollow protective plate (27) is fixedly connected to the lower part of the fixed rods (26). The bottom of the hollow protective plate (27) is fixedly connected to the fixed frame (21). The motor (25) and the drill bit (28) are connected through the hollow protective plate (27).
2. The protective device for an automatic screwdriver as described in claim 1, characterized in that: Infrared sensors (11) are fixedly connected to the inner cavity of the box (1) near the two sides of the workbench (3). A groove (4) is provided in the middle of the upper part of the workbench (3). Several first sliding grooves (5) are provided on both sides of the upper part of the workbench (3) near the groove (4). Several rotating shafts (6) are provided inside the groove (4).
3. The protective device for an automatic screwdriver as described in claim 2, characterized in that: The first groove (5) is slidably connected to a second slider (19), and a support column (7) is fixedly connected above the second slider (19).
4. The protective device for an automatic screwdriver as described in claim 3, characterized in that: A push plate (8) is fixedly connected above the support column (7), and cylinders (10) are fixedly connected to both ends of the worktable (3).
5. The protective device for an automatic screwdriver as described in claim 4, characterized in that: The extension end of the cylinder (10) is fixedly connected to one side of the push plate (8), and an anti-slip pad (9) is fixedly connected to the other side of the push plate (8).
6. The protective device for an automatic screwdriver as described in claim 5, characterized in that: The workbench (3) is fixedly connected to the lower two sides of the workbench (3), and a baffle (20) is fixedly connected to the upper rear side of the workbench (3).
7. The protective device for an automatic screwdriver as described in claim 1, characterized in that: A window frame (15) is movably connected to the front of the box (1), and a second handle (16) is fixedly connected to one side below the window frame (15).