Locking hexagonal nut tapping device

By introducing a combination of a feeding mechanism and a tapping mechanism into the hexagonal nut tapping device, rapid nut feeding and automatic tapping head cleaning are achieved, solving the problem of low tapping efficiency for large anti-loosening hexagonal nuts in the existing technology and improving the overall tapping efficiency.

CN224444775UActive Publication Date: 2026-07-03HEBEI SHENGDONG FASTENER MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI SHENGDONG FASTENER MFG CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-03

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Abstract

The utility model discloses a kind of anti-loose hexagonal nut tapping devices, including rack, the rack is equipped with material ejecting mechanism and tapping mechanism, tapping disc is installed on the rack, and a plurality of tapping slots are equipped on tapping disc, and the outer side one end of clamping groove is equipped with material conveying channel, clamping groove is equipped on tapping disc, and clamping block is slidably clamped in clamping groove, clamping block is cooperatively arranged with tapping slot, spring one is installed in clamping groove, and the output end of spring one is abutted with clamping block. By the setting of material conveying channel, the nut that tapping is completed can be ejected by material ejecting mechanism after one, and material conveying channel directly extrudes feeding, so as to improve the feeding efficiency when tapping;By the cooperation of rack and cleaning brush, when tapping head taps, cleaning brush is driven by rack to deflect, so as not to affect tapping, when tapping head rotates after tapping is completed, cleaning brush can be driven to reset, so as to automatically clean tapping head, further improve tapping efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of anti-loosening hexagonal nut tapping device, and in particular to an anti-loosening hexagonal nut tapping device. Background Technology

[0002] In the prior art, such as the hexagonal nut tapping device with patent number CN220739714U, multiple tapping heads are used to tap simultaneously, and the hexagonal nut is ejected and unloaded, which improves the tapping efficiency of large anti-loosening hexagonal nuts. However, there are still ways to improve it to further improve the tapping efficiency of large anti-loosening hexagonal nuts. Utility Model Content

[0003] Therefore, it is necessary to provide a tapping device for anti-loosening hexagonal nuts to address the aforementioned technical problem of further improving the tapping efficiency of large anti-loosening hexagonal nuts.

[0004] To achieve the above objectives, this utility model provides a tapping device for anti-loosening hexagonal nuts, including a frame, on which a feeding mechanism and a tapping mechanism are mounted. A tapping disc is mounted on the frame, and the tapping disc has several tapping slots. A material conveying channel is installed at one outer end of each tapping slot. A locking block is slidably engaged within the locking slot, and the locking block cooperates with the tapping slot. A spring is installed within the locking slot, and the output end of the spring abuts against the locking block. The tapping mechanism includes a tapping frame, on which several tapping heads are rotatably mounted. Gears are mounted on the tapping heads, and a rack is slidably engaged on the tapping frame. The gears and rack mesh with each other. A cleaning brush is hinged to the tapping frame, and a pusher is mounted on the rack.

[0005] Preferably, the top material mechanism includes a linear actuator, a top material frame is slidably connected to the frame, the output end of the linear actuator is connected to the top material frame, and the top of the tapping slot and the top of the material conveying channel are both provided with top material grooves for the top material frame to pass through.

[0006] Preferably, the slots are symmetrically arranged on both sides of the material conveying channel, and the bottom of the card block is chamfered.

[0007] Preferably, the tapping mechanism further includes a second linear actuator, the tapping frame is slidably attached to the frame, and the output end of the second linear actuator is connected to the tapping frame.

[0008] Preferably, the tapping frame is provided with a limiting groove, a limiting block is installed on the rack, the limiting block is slidably engaged in the limiting groove, a second spring is installed in the limiting groove, and the output end of the second spring is connected to the limiting block.

[0009] Preferably, the tapping frame is equipped with a limit block, which is configured to cooperate with the cleaning brush.

[0010] Compared with existing technologies, this technical solution has at least one of the following beneficial effects:

[0011] By setting up a feeding channel, after the tapped nut is pushed out by the top feeding mechanism, the feeding channel can directly squeeze and feed the material, thereby improving the feeding efficiency during tapping.

[0012] By using a rack and a cleaning brush in combination, the rack can deflect the cleaning brush while the tapping head is tapping, thus not affecting the tapping process. When the tapping head returns to its original position after tapping is complete, the cleaning brush can be driven back to its original position, thereby automatically cleaning the tapping head and further improving tapping efficiency. Attached Figure Description

[0013] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0014] Figure 2 This is a perspective view of the inside of a tapping disc according to an embodiment of the present invention;

[0015] Figure 3 This is a perspective view of the tapping frame in an embodiment of the present invention;

[0016] Figure 4 This is a perspective view of the inside of a tapping frame according to an embodiment of the present invention;

[0017] In the diagram, 1. Frame; 2. Tapping disc; 3. Tapping slot; 4. Material conveying channel; 5. Slot; 6. Locking block; 7. Spring 1; 8. Tapping frame; 9. Tapping head; 10. Gear; 11. Rack; 12. Cleaning brush; 13. Push block; 14. Linear actuator 1; 15. Top material frame; 16. Top material groove; 17. Linear actuator 2; 18. Limit groove; 19. Limiting block; 20. Spring 2; 21. Limiting locking block. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] Please see Figures 1 to 4This application provides a tapping device for anti-loosening hexagonal nuts, including a frame 1. A feeding mechanism and a tapping mechanism are mounted on the frame 1. A tapping disc 2 is fixedly mounted on the frame 1, and the tapping disc 2 has several tapping slots 3. The tapping slots 3 are identical in shape to the anti-loosening hexagonal nuts to be tapped. A feeding channel 4 is fixedly mounted on one outer end of each tapping slot 3. Several nuts of a fixed shape can be placed on the feeding channel 4. An electric cylinder can be installed at the outermost end to push the nuts. Nuts can be fed manually onto the feeding channel 4 or conveyed to the feeding channel by a stepped feeder. On channel 4, it can be pushed by an electric cylinder. The tapping disc 2 has a slot 5, and a block 6 is slidably engaged in the slot 5. The block 6 is set to cooperate with the tapping slot 3. A spring 7 is fixedly installed in the slot 5, and the output end of the spring 7 abuts against the block 6. The tapping mechanism includes a tapping frame 8, on which several tapping heads 9 are rotatably mounted. Gears 10 are fixedly installed on the tapping heads 9. A rack 11 is slidably engaged on the tapping frame 8. The gears 10 and rack 11 are meshed and connected. A cleaning brush 12 is hinged to the tapping frame 8 through a pin shaft. A push block 13 is fixedly installed on the rack 11.

[0020] In this embodiment, the tapping mechanism on the frame 1 can descend to tap several nuts placed on the tapping disc 2. After tapping, the ejector mechanism ejects the nuts. During ejection, the ejector mechanism rises and simultaneously squeezes the clamping block 6, causing it to retract back into the clamping groove 5. Thus, the nut closest to the tapping groove 3 among several nuts on the feeding channel 4 can be clamped between the two clamping blocks 6 under the pressure of the electric cylinder. After the ejector mechanism descends, the electric cylinder squeezes again, allowing the nut to be squeezed into the tapping groove 3 to wait for tapping, thereby completing the rapid feeding of the nut. After feeding, the clamping block 6 can be reset under the action of the spring 7 in the clamping groove 5. At this time, the electric cylinder no longer squeezes the subsequent nuts, so the clamping block 6 can separate the subsequent nuts from the nuts clamped in the tapping groove 3. After the clamping block 6 is reset, it can cooperate with the tapping groove 3 to limit the nuts. Due to the inclined setting of the clamping groove 5, the clamping block 6 is not easily retracted under force during tapping. During tapping, the tapping head 9 drives the gear 10 on it to rotate. The meshing of the gear 10 and the rack 11 allows the rack 11 to move, i.e., slide outward. When the rack 11 moves, the inner push block 13 on it can drive the hinged cleaning brush 12 to deflect. Since the rotation direction of the tapping head 9 is opposite during and after tapping, during the retraction process after tapping, the cleaning brush 12 can be driven to rotate by its own weight and the outer push block 13 on the rack 11. After the tapping head 9 separates from the nut, it can continue to rotate, so that the cleaning brush 12 is flush with the tapping head 9. Thus, under the joint limitation of the tapping frame 8 and the outer push block 13 on the rack 11, the cleaning brush 12 can clean the tapping head 9.

[0021] In some embodiments, to facilitate the ejection of the nut after tapping, an ejection mechanism is provided, including a linear actuator 14, which may be an electric cylinder. An ejection frame 15 is slidably engaged on the frame 1. The output end of the linear actuator 14 is connected to the ejection frame 15. Both the tapping slot 3 and the top of the material conveying channel 4 are provided with ejection grooves 16 for the ejection frame 15 to pass through. Thus, when the linear actuator 14 drives the ejection frame 15 to rise, the ejection frame 15 can pass through the ejection grooves 16 to compress the nut and the locking block 6.

[0022] In some embodiments, to facilitate automatic nut feeding, slots 5 are symmetrically arranged on both sides of the feeding channel 4, and the bottom of the block 6 is chamfered. The symmetrical arrangement facilitates pushing the nut into the tapping slot 3, and the chamfer makes it easier for the block 6 to retract when the top material frame 14 presses.

[0023] In some embodiments, to improve the stability of tapping nuts, the tapping mechanism further includes a second linear actuator 17, which can be an electric cylinder. The tapping frame 8 is slidably mounted on the frame 1, and the output end of the second linear actuator 17 is connected to the tapping frame 8. Thus, the vibration generated by the tapping frame 8 during tapping can be transmitted to the frame 1, preventing damage to the second linear actuator 17. A servo motor is installed inside the tapping frame 8 to drive the tapping head 9 for tapping. Multiple servo motors can drive the tapping head 9 separately, or a single servo motor can be driven together via a transmission assembly. The electric cylinder, the first linear actuator 14, the second linear actuator 17, and the servo motor driving the tapping head 9 on the material conveying channel 4 can all be connected via an external signal processor for coordinated operation.

[0024] In some embodiments, to facilitate the sliding engagement of the rack 11 onto the tapping frame 8, a limiting groove 18 is provided on the tapping frame 8, and a limiting block 19 is fixedly installed on the rack 11. The limiting block 19 is slidably engaged within the limiting groove 18, and a second spring 20 is fixedly installed within the limiting groove 18. The output end of the second spring 20 abuts against the limiting block 19. Thus, when the tapping head 9 rotates, the rack 11 can be driven to move to its furthest point. When the tapping head 9 stops and rotates back, the second spring 20 can press against the limiting block 19 within the limiting groove 18, causing the rack 11 to re-mesh with the gear 10. The slight collision between the rack 11 and the gear 10 caused by the second spring 20 pulling the rack 11 back to its original position, and the minimal deflection of the cleaning brush 12 when the rack 11 wobbles, are negligible.

[0025] In some embodiments, to facilitate the cooperation between the tapping frame 8 and the push block 13 in limiting the cleaning brush 12, a limiting block 21 is fixedly installed on the tapping frame 8, and the limiting block 21 is configured to cooperate with the cleaning brush 12. Thus, when the cleaning brush 12 is cleaning, with the push block 13 on one side and the limiting block 21 on the other side, the cleaning brush 12 can be limited. The slight wobbling of the push block 13 has negligible impact on the cleaning brush 12. When the cleaning brush 12 deflects, the tapping head 9 can rotate in advance to drive the cleaning brush 12 to deflect before the tapping head 9 descends to tap. When the tapping head 9 rotates back, the cleaning brush 12 can only be aligned with the tapping head 9 during the continued rotation after the tapping head 9 has completely separated from the nut; and the longer rack 11 ensures that the cleaning brush 12 can fully reset during the continued rotation after the tapping head 9 has completely separated from the nut.

[0026] The fixed connection and rotating installation in the above embodiments can all be achieved by welding, screw fasteners and other forms in the prior art, and the rotating installation can be achieved by bearings, circular rotating blocks and circular grooves. All of the above components are standard parts, and those that are not standard parts can also be specially customized, so the inventor will not elaborate further.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A tapping device for locking hexagonal nut, comprising a frame (1), a material pushing mechanism and a tapping mechanism are installed on the frame (1), characterized in that, The frame (1) is equipped with a tapping disc (2), which has several tapping slots (3). A material conveying channel (4) is installed at one end of the tapping slot (3). The tapping disc (2) has a slot (5), and a locking block (6) is slidably engaged in the slot (5). The locking block (6) is configured to cooperate with the tapping slot (3). A spring (7) is installed in the slot (5), and the output end of the spring (7) abuts against the locking block (6). The tapping mechanism includes a tapping frame (8), which has several tapping heads (9) rotatably mounted on it. A gear (10) is mounted on the tapping head (9). A rack (11) is slidably engaged on the tapping frame (8). The gear (10) meshes with the rack (11). A cleaning brush (12) is hinged on the tapping frame (8), and a push block (13) is mounted on the rack (11).

2. The locking hexagon nut tapping device according to claim 1, wherein The top material mechanism includes a linear actuator (14), a top material frame (15) is slidably connected on the frame (1), the output end of the linear actuator (14) is connected to the top material frame (15), and the top of the tapping slot (3) and the material conveying channel (4) are provided with a top material groove (16) for the top material frame (15) to pass through.

3. The locking hexagon nut tapping device according to claim 1, wherein The slots (5) are symmetrically arranged on both sides of the material conveying channel (4), and the bottom of the card block (6) is chamfered.

4. The locking hexagon nut tapping device according to claim 1, wherein The tapping mechanism also includes a second linear actuator (17), and the tapping frame (8) is slidably attached to the frame (1). The output end of the second linear actuator (17) is connected to the tapping frame (8).

5. The locking hexagon nut tapping device according to claim 1, wherein The tapping frame (8) is provided with a limiting groove (18), and a limiting block (19) is installed on the rack (11). The limiting block (19) is slidably engaged in the limiting groove (18). A second spring (20) is installed in the limiting groove (18), and the output end of the second spring (20) is connected to the limiting block (19).

6. The locking hexagon nut tapping device of claim 1, wherein, The tapping frame (8) is equipped with a limit block (21), which is configured in conjunction with the cleaning brush (12).