Automatic screw locking machine
By introducing a storage track and an automatic opening and closing device into the automatic screw fastening machine, the problem that existing technologies can only fasten screws of a matching specification is solved, enabling effective clamping and fastening of screws of various specifications and improving screw fastening efficiency.
Patent Information
- Application Number
- CN202423090631.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing automatic screw fastening machines can only fasten screws of a specific specification and cannot adapt to screws of various specifications. Small screws are also prone to falling out of the feed port, resulting in low screw fastening efficiency.
An automatic screw fastening machine was designed, which adopts a storage track and an automatic opening and closing device, including a fixed track and a sliding track. The screw is clamped by elastic elements and blocking elements, and the drill bit is driven by a telescopic cylinder and a drive motor to achieve the tightening of screws of different types.
It enables effective clamping and locking of screws of different sizes, preventing screws from falling off and improving the efficiency and applicability of screw fastening.
Smart Images
Figure CN223506641U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of screw fastening machine technology, and in particular to an automatic screw fastening machine. Background Technology
[0002] Automatic screw fastening machines use various electric and pneumatic components to automatically feed, tighten, and inspect screws. The equipment simplifies the screw fastening process, reduces the number of workers, and minimizes the adverse effects of human error. Currently, automatic screw fastening machines mainly include handheld screw fastening machines, multi-axis automatic screw fastening machines, and coordinate-type automatic screw fastening machines.
[0003] Because there are many different sizes of screws during processing, existing automatic screw fastening machines can only fasten the matching screws and cannot fasten screws of multiple sizes. In addition, when the screws are too small, they may fall out of the feed port, resulting in low screw fastening efficiency.
[0004] Regarding the aforementioned technologies, the inventors believe that an automatic screw-locking machine is needed to solve the above problems. Utility Model Content
[0005] To prevent screws from falling out of the feed port and causing low efficiency in screw fastening with an electric screwdriver, this application provides an automatic screw fastening machine.
[0006] The automatic screw fastening machine provided in this application adopts the following technical solution:
[0007] An automatic screw fastening machine includes a handle, a telescopic cylinder fixed to the end of the handle, a drive motor fixed to the end of the connecting rod of the telescopic cylinder, a screw-tightening drill bit coaxially and detachably connected to the output shaft of the drive motor, a storage rail for temporarily storing screws connected to the handle, an automatic opening and closing device connected to the storage rail, the automatic opening and closing device being located directly in front of the drill bit, the automatic opening and closing device including two elastic elements disposed on the storage rail for clamping screws and a blocking element for positioning the screw to be used directly in front of the drill bit.
[0008] Preferably, the storage track includes a fixed track and a sliding track that are parallel to each other. The fixed track and the sliding track have sliding grooves on their side walls near the handle and the drill bit. The sliding grooves extend along the length of the fixed track and the sliding track, and the screw head is located in the sliding groove and slides in the sliding groove.
[0009] Preferably, the fixed track and the sliding track have the same shape and each includes two straight track sections and an arc track that smoothly connects the two straight tracks. One of the straight tracks is inclined, and the automatic opening and closing device is set on the other straight track. An adjusting bolt is rotatably connected to the fixed track. The adjusting bolt passes through the fixed track and is threaded onto the sliding track. The distance between the fixed track and the sliding track is adjusted by rotating the adjusting bolt.
[0010] Preferably, the fixed track and the sliding track are provided with mounting grooves for accommodating the elastic element. The inner wall of the mounting groove is provided with an adjustment groove along the length of the adjusting bolt. The elastic element includes clamping blocks that are slidably mounted on the sliding track and the fixed track respectively. An adjustment block is fixed on the clamping block and slidably mounted in the adjustment groove. An adjustment spring is fixed in the adjustment groove to push the two adjustment blocks and drive the clamping blocks to move towards each other. The end faces of the two clamping blocks near the drill bit are provided with tapered grooves to facilitate the movement of the screw towards the drilled object under the action of the telescopic cylinder and the drive motor.
[0011] Preferably, the blocking element includes an abutment bolt threaded to the end of the fixed track, the end of the abutment bolt extending into the sliding groove and abutting against the side wall of the screw head, so that the screw head opening faces the drill bit.
[0012] Preferably, a magnet block for attracting screws is fixed to the end of the abutting bolt.
[0013] Preferably, the handle has a storage slot for neatly storing screws. The inner sidewall of the storage slot is perpendicular to the linear track connected to the handle. A connecting groove is formed within the storage slot, communicating with the gap between the fixed track and the sliding track, allowing screws to slide between the fixed and sliding tracks. A cover plate is slidably connected to the handle to close the opening of the storage slot.
[0014] The beneficial effects of this utility model are as follows: the screw enters the conical groove in the elastic element, and the distance between the two clamping blocks can be controlled by adjusting the spring to accommodate different types of screws. During the drilling process, the telescopic cylinder drives the drive motor to move, and the drill bit is inserted into the hole in the head of the screw. The telescopic cylinder continues to extend the head of the screw, pushing the two clamping blocks to move in opposite directions. At the same time, under the action of the drive motor, the screw is drilled into the object. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0016] Figure 2 This is a schematic diagram of the automatic opening and closing device.
[0017] Figure 3 This is a schematic diagram of the connection structure of the clamping block.
[0018] Figure 4 This is a sectional view of the handle.
[0019] Explanation of reference numerals in the attached diagram: 1. Hand lever; 2. Telescopic cylinder; 3. Drive motor; 4. Drill bit; 5. Fixed track; 6. Sliding track; 7. Sliding groove; 8. Adjusting bolt; 9. Mounting groove; 10. Adjusting groove; 11. Adjusting block; 12. Clamping block; 13. Cover plate; 14. Adjusting spring; 15. Conical groove; 16. Abutment bolt; 17. Magnet block; 18. Storage groove; 19. Connecting groove. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0021] This application discloses an automatic screw fastening machine.
[0022] Reference Figure 1 An automatic screw fastening machine includes a handle 1, with a telescopic cylinder 2 fixed to the end of the handle 1 by bolts. The telescopic direction of the connecting rod of the telescopic cylinder 2 is perpendicular to the handle 1. A drive motor 3 is fixed to the end of the connecting rod of the telescopic cylinder 2. The output shaft of the drive motor 3 is coaxial with the telescopic cylinder 2. A drill bit 4 is coaxially connected to the output shaft of the drive motor 3. The drill bit 4 is detachably connected to the output shaft of the drive motor 3 for easy replacement. The detachability can be achieved by slotted magnetic attraction or adapter.
[0023] Reference Figure 1 , Figure 2 and Figure 3 The handle 1 is connected to a storage rail for temporarily storing screws. An automatic opening and closing device is connected to the storage rail. The automatic opening and closing device is located in front of the drill bit. The automatic opening and closing device includes a blocking member set on the storage rail and two elastic members for clamping screws. The blocking member is used to position the screw to be used in front of the drill bit 4, and the elastic members are used to clamp screws of different sizes.
[0024] Reference Figure 1 , Figure 2 and Figure 3The storage track includes a fixed track 5 and a sliding track 6 that are parallel to each other. Two elastic elements are respectively set on the fixed track 5 and the sliding track 6. The fixed track 5 and the sliding track 6 have the same shape, and sliding grooves 7 are opened on the side walls of the fixed track 5 and the sliding track 6 near the handle 1 and the drill bit 4. The sliding grooves 7 extend along the length direction of the fixed track 5 and the sliding track 6. The screw head is located in the sliding groove 7 and slides in the sliding groove 7. On the one hand, it prevents the screw from falling off the fixed track 5 and the sliding track 6, and on the other hand, it allows the screw to slide smoothly onto the elastic element.
[0025] Reference Figure 2 and Figure 3 The fixed track 5 and the sliding track 6 include two straight tracks and an arc track that smoothly connects the two straight tracks. One straight track is connected to the handle 1 and is set at an angle. The other straight track is perpendicular to the drill bit and the automatic opening and closing device is set on the straight track. The two ends of the fixed track 5 are rotatably connected to adjusting bolts 8. The adjusting bolts 8 pass through the fixed track 5 and are threaded onto the sliding track 6. The adjusting bolts 8 cannot move along their own axis on the fixed track 5. The distance between the fixed track 5 and the sliding track 6 can be adjusted by rotating the adjusting bolts 8 to meet the needs of screws of different sizes.
[0026] Reference Figure 1 and Figure 2 The fixed track 5 and the sliding track 6 are provided with mounting grooves 9 for accommodating elastic elements. Adjustment grooves 10 are provided on the inner walls of both sides of the mounting grooves 9 along the length of the adjusting bolts 8. The elastic element includes clamping blocks 12 slidably mounted on the sliding track 6 and the fixed track 5, respectively. Adjustment blocks 11 are fixed on opposite side walls of the clamping blocks 12 and slidably mounted within the adjustment grooves 10. An adjusting spring 14 is fixed within the adjustment grooves 10. One end of the adjusting spring 14 is fixed to the inner wall of the adjustment groove 10, and the other end is fixed to the adjusting block 11, pushing the adjusting block 11 to move the clamping block 12 towards... The two clamping blocks 12 move towards each other to facilitate clamping the screw. The end faces of the two clamping blocks 12 near the drill bit 4 have tapered grooves 15. The tapered grooves 15 are coaxial with the drill bit 4. The screw to be drilled is located in the tapered grooves 15. The opening of the screw head is directly opposite the drill bit 4. The drill bit 4 applies force to the screw, and the screw drills into the object. During the drilling process, the tapered grooves 15 are set to push the two clamping blocks 12 to move away from each other, so that the screw can be driven to move towards the object to be drilled under the action of the telescopic cylinder 2 and the drive motor 3.
[0027] Reference Figure 1 and Figure 4The blocking component includes an abutment bolt 16 threaded to the end of the fixed track 5. The end of the abutment bolt 16 extends to the sliding groove 7 and abuts against the side wall of the screw head, so that the opening of the screw head faces the drill bit 4. A magnet block 17 for attracting screws is fixed at the end of the abutment bolt 16.
[0028] Reference Figure 1 and Figure 2 The handle 1 has a storage groove 18 for neatly storing screws. The inner side wall of the storage groove 18 is perpendicular to the straight track connected to the handle 1. A connecting groove 19 is provided in the storage groove 18 to communicate with the gap between the fixed track 5 and the sliding track 6, so that the bottom screw can slide through the connecting groove 19 to the space between the fixed track 5 and the sliding track 6, and move along the sliding groove 7 towards the elastic element. A cover plate 13 is slidably connected to the handle 1 to close the storage groove 18.
[0029] The implementation principle of this application embodiment is as follows: Under the action of gravity, the screw moves in the sliding groove 7 towards the direction of the elastic element and falls into the conical groove 15. During the drilling process, the telescopic cylinder 2 drives the drive motor 3 to move, and the drill bit 4 is inserted into the hole of the screw head. During the drilling process, the telescopic cylinder 2 continues to extend, and the screw head pushes the two clamping blocks 12 to move in opposite directions. The drive motor 3 drives the screw to rotate, so that the screw is drilled into the object. Due to the setting of the elastic element, the needs of different types of screws are met.
[0030] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An automatic screw fastening machine, characterized in that: The device includes a handle (1), a telescopic cylinder (2) fixed to the end of the handle (1), a drive motor (3) fixed to the end of the connecting rod of the telescopic cylinder (2), a screw drill bit (4) coaxially and detachably connected to the output shaft of the drive motor (3), a storage track for temporarily storing screws connected to the handle (1), an automatic opening and closing device connected to the storage track, the automatic opening and closing device being located directly in front of the drill bit, the automatic opening and closing device including two elastic elements set on the storage track for clamping screws and a blocking element for positioning the screw to be used directly in front of the drill bit (4).
2. The automatic screw fastening machine according to claim 1, characterized in that: The storage track includes a fixed track (5) and a sliding track (6) that are parallel to each other. The fixed track (5) and the sliding track (6) have sliding grooves (7) on their side walls near the handle (1) and the drill bit (4). The sliding grooves (7) extend along the length of the fixed track (5) and the sliding track (6). The head of the screw is located in the sliding groove (7) and slides in the sliding groove (7).
3. An automatic screw fastening machine according to claim 2, characterized in that... The fixed track (5) and the sliding track (6) have the same shape and each includes two straight tracks and an arc track that smoothly connects the two straight tracks. One of the straight tracks is inclined, and the automatic opening and closing device is set on the other straight track. An adjusting bolt (8) is rotatably connected to the fixed track (5). The adjusting bolt (8) passes through the fixed track (5) and is threaded to the sliding track (6). The distance between the fixed track (5) and the sliding track (6) is adjusted by rotating the adjusting bolt (8).
4. An automatic screw fastening machine according to claim 3, characterized in that: The fixed track (5) and the sliding track (6) are provided with mounting grooves (9) for placing elastic elements. The inner wall of the mounting groove (9) is provided with an adjustment groove (10) along the length of the adjustment bolt (8). The elastic element includes clamping blocks (12) that are slidably set on the sliding track (6) and the fixed track (5) respectively. An adjustment block (11) is fixed on the clamping block (12) and slidably set in the adjustment groove (10). An adjustment spring (14) is fixed in the adjustment groove (10) to push the two adjustment blocks (11) to drive the clamping blocks (12) to move towards each other. The end faces of the two clamping blocks (12) near the drill bit (4) are provided with tapered grooves (15) to facilitate the movement of the screw towards the drilled object under the action of the telescopic cylinder (2) and the drive motor (3).
5. An automatic screw fastening machine according to claim 4, characterized in that: The blocking element includes an abutment bolt (16) threaded to the end of the fixed rail (5), the end of the abutment bolt (16) extending into the sliding groove (7) and abutting against the side wall of the screw head, so that the screw head opening faces the drill bit (4).
6. An automatic screw fastening machine according to claim 5, characterized in that: The end of the abutment bolt (16) is fixed with a magnet block (17) that attracts the screw.
7. An automatic screw fastening machine according to claim 6, characterized in that: The handle (1) is provided with a storage groove (18) for neatly storing screws. The inner sidewall of the storage groove (18) is perpendicular to the straight track connected to the handle (1). A connecting groove (19) is provided in the storage groove (18) to communicate with the gap between the fixed track (5) and the sliding track (6), so that the screws can slide through the connecting groove (19) to the space between the fixed track (5) and the sliding track (6). A cover plate (13) is slidably connected to the handle (1) for closing the opening of the storage groove (18).