Automatic tapping device

Abstract

The utility model discloses an automatic tapping device, which relates to the technical field of tapping, and comprises a tapping tool body, a lifting component and an auxiliary positioning mechanism, the auxiliary positioning mechanism comprises a mounting seat, a plurality of electric telescopic rods and a positioning sucker, the multiple electric telescopic rods are arranged in a rotating array mode with the axis of the mounting base as the center, the fixed ends of the electric telescopic rods are embedded into the bottom end of the mounting base, the telescopic ends of the electric telescopic rods are fixedly connected with the positioning suction cups, and the lifting assembly is fixedly connected with the mounting base. The tapping tool body vertically penetrates through the top end of the mounting seat and can slide up and down on the mounting seat through the lifting assembly; the electric telescopic rods arranged at the bottom end of the mounting seat synchronously and slowly stretch out and draw back at a constant speed, so that the lifting assembly drives the tapping tool body to rotate and ascend and descend to complete tapping, and tapping automation is achieved; and through the arrangement of the mounting base and the positioning suction cup, inclination and deviation during tapping are avoided, and the situation that a workpiece cannot be used due to tapping damage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of tapping technology, specifically to an automatic tapping device. Background Technology

[0002] Tapping is a metal cutting process that uses a certain torque to screw a tap into the pilot hole of a fastener blank to create an internal thread. In traditional fastener manufacturing, threading is mostly done manually, which offers greater flexibility compared to mechanical tapping and can tap pilot holes in workpieces that are difficult to move. When tapping on the inclined surface of a workpiece, the tap is prone to deflection, resulting in a misaligned threaded hole. Therefore, an automatic tapping device is needed to ensure that the tapped threaded hole is perpendicular to the inclined surface of the workpiece. Utility Model Content

[0003] The purpose of this invention is to provide an automatic tapping device, which aims to solve the problem of easy deflection of the threaded hole after tapping in the above-mentioned background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic tapping device, comprising a tapping tool body, a lifting assembly, and an auxiliary positioning mechanism. The auxiliary positioning mechanism includes a mounting base, an electric telescopic rod, and a positioning suction cup. The mounting base is a cylindrical structure with a closed upper end. Multiple electric telescopic rods are provided, arranged in a rotating array around the axis of the mounting base, with their fixed ends embedded inside the bottom end of the mounting base. The telescopic ends of the electric telescopic rods are fixedly connected to the positioning suction cup. The lifting assembly is fixedly connected to the mounting base. The tapping tool body vertically penetrates the top of the mounting base and can slide up and down on the mounting base via the lifting assembly.

[0005] Furthermore, the tapping tool body includes a rotating rod, a drive motor, a tap chuck, and a tap detachably mounted at the bottom of the tap chuck. The top of the rotating rod has a threaded section, and the smooth section of the rotating rod is movably mounted on the top of the mounting base. The bottom of the rotating rod passes through the mounting base and has a drive motor embedded inside. The output end of the drive motor is fixedly connected to the top of the tap chuck.

[0006] Furthermore, the lifting assembly includes a fixed frame, a rack, a transverse bevel gear, a longitudinal bevel gear, and a transmission gear. The fixed frame is mounted on one side of the mounting base. The rack is vertically arranged and slides against the inner wall of the fixed frame. The bottom of the rack is fixedly connected to the telescopic end of one of the electric telescopic rods. The top of the mounting base is provided with a mounting bracket. The transverse bevel gear is hinged to the mounting bracket. The transverse bevel gear has a threaded hole and is threadedly connected to the threaded section of the rotating rod through the threaded hole. The longitudinal bevel gear is rotatably connected to the fixed frame. A transmission gear is provided on the axle of the longitudinal bevel gear. The transmission gear meshes with the rack. The transverse bevel gear meshes with the longitudinal bevel gear.

[0007] Furthermore, a circular groove is provided at the bottom end of the rotating rod along the axis, the drive motor is embedded in the circular groove, and a set screw hole is provided on the side wall of the tap chuck, with a set screw whose end can abut against the tap shank being threaded into the set screw hole.

[0008] This utility model has the following beneficial effects:

[0009] This utility model provides an automatic tapping device. By controlling multiple electric telescopic rods located at the bottom of the mounting base to rise and fall synchronously and at a uniform speed, the lifting assembly drives the tapping tool body to rise and fall to complete the tapping process. This achieves automated tapping. Due to the mounting base and positioning suction cup, tilting or misalignment during tapping is avoided, preventing the workpiece from becoming unusable due to tapping damage. Furthermore, different specifications of taps can be replaced as needed, further enhancing the practicality of the device. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention before tapping;

[0011] Figure 2 This is a schematic diagram of the overall structure of the present invention after tapping.

[0012] In the diagram: 1. Mounting base; 2. Electric telescopic rod; 3. Positioning suction cup; 4. Rotating rod; 5. Drive motor; 6. Tap chuck; 7. Tap; 8. Fixing bracket; 9. Rack; 10. Transverse bevel gear; 11. Longitudinal bevel gear; 12. Transmission gear; 13. Mounting bracket; 14. Set screw. Detailed Implementation

[0013] like Figures 1 to 2As shown, an automatic tapping device includes a tapping tool body, a lifting assembly, and an auxiliary positioning mechanism. The auxiliary positioning mechanism includes a mounting base 1, an electric telescopic rod 2, and a positioning suction cup 3. The mounting base 1 is a cylindrical structure with a closed upper end. Multiple electric telescopic rods 2 are arranged in a rotating array around the axis of the mounting base 1, and their fixed ends are all embedded inside the bottom end of the mounting base 1. The telescopic ends of the electric telescopic rods 2 are fixedly connected to the positioning suction cup 3. The lifting assembly is fixedly connected to the mounting base 1. The tapping tool body vertically penetrates the top of the mounting base 1 and can slide up and down on the mounting base 1 through the lifting assembly. The tap tip is aligned with the bottom hole, and the device is fixed to the workpiece surface by the positioning suction cup 3. When multiple electric telescopic rods 2 extend and retract synchronously, the lifting assembly can drive the tapping tool body to move longitudinally on the mounting base 1 to process the bottom hole.

[0014] The tapping tool body includes a rotating rod 4, a drive motor 5, a tap chuck 6, and a tap 7 detachably mounted at the bottom of the tap chuck 6. The top of the rotating rod 4 has a threaded section, and the smooth section of the rotating rod 4 is movably mounted at the top of the mounting base 1. The bottom of the rotating rod 4 passes through the mounting base 1 and has the drive motor 5 embedded inside. The output end of the drive motor 5 is fixedly connected to the top of the tap chuck 6. During operation, the model of the tap 7 can be changed according to actual needs. The tapping tool body is composed of multiple components, eliminating the hinge bar setting and avoiding interference with surrounding obstacles during rotation.

[0015] The lifting assembly includes a fixed frame 8, a rack 9, a transverse bevel gear 10, a longitudinal bevel gear 11, and a transmission gear 12. The fixed frame 8 is located on one side of the mounting base 1. The rack 9 is vertically arranged and slides against the inner wall of the fixed frame 8. The bottom of the rack 9 is fixedly connected to the telescopic end of one of the electric telescopic rods 2. The top of the mounting base 1 is provided with a mounting bracket 13. The transverse bevel gear 10 is hinged to the mounting bracket 13. The transverse bevel gear 10 has a threaded hole and is threadedly connected to the threaded section of the rotating rod 4 through the threaded hole. The longitudinal bevel gear 11 rotates with the fixed frame 8. The longitudinal bevel gear 11 is connected to the rack 9, and the transverse bevel gear 10 is connected to the longitudinal bevel gear 11. When multiple electric telescopic rods 2 extend and retract synchronously, the rack 9 slides longitudinally on the inner wall of the fixed frame 8, thereby driving the transmission gear 12 to rotate. The longitudinal bevel gear 11 located at the other end of the transmission gear 12 shaft rotates synchronously, causing the transverse bevel gear 10, which meshes with the longitudinal bevel gear 11, to rotate, thereby driving the rotating rod 4 to rotate and slide longitudinally on the mounting base 1.

[0016] The bottom end of the rotating rod 4 has a circular groove along the axis, and the drive motor 5 is embedded in the circular groove. The side wall of the tap chuck 6 has a set screw hole, and the set screw 14 with its end abutting against the tap shank is connected to the set screw hole. This enables the tap 7 to be detached and installed, and different models of tap 7 can be replaced as needed.

[0017] The specific operation process of this utility model is as follows:

[0018] The operator moves the device near the workpiece to be processed, selects a suitable tap 7 according to actual needs, and secures it to the tap chuck 6 using the set screw 14. The electric telescopic rod 2 is then activated to extend synchronously, ensuring the telescopic end is level with the tap head of the tap 7. The tap head of the tap 7 is aligned with the bottom hole on the workpiece, and the device is fixed to the workpiece surface using the positioning suction cup 3. The drive motor 5 is then activated to control the telescopic ends of the multiple electric telescopic rods 2 to retract synchronously and slowly at a uniform speed, causing the mounting base 1 to descend, so that the rack 9 rests on the inner wall of the fixing frame 8. The longitudinal sliding causes the transmission gear 12, which meshes with the rack 9, to rotate. The longitudinal bevel gear 11, located at the other end of the transmission gear 12 axle, rotates synchronously, causing the transverse bevel gear 10, which meshes with the longitudinal bevel gear 11, to rotate. This, in turn, causes the rotating rod 4 to rotate on the mounting base 1 and slide longitudinally, controlling the tap 7 to rotate downward along the inner wall of the bottom hole, thus completing the tapping. After the tapping is completed, the drive motor 5 is reversed, and the telescopic end of the electric telescopic rod 2 extends synchronously and slowly at a uniform speed, pulling the tap 7 out of the bottom hole. The positioning suction cup 3 can then be removed.

Claims

1. An automatic tapping device, characterized in that: The device includes a tapping tool body, a lifting assembly, and an auxiliary positioning mechanism. The auxiliary positioning mechanism includes a mounting base (1), an electric telescopic rod (2), and a positioning suction cup (3). The mounting base (1) is a cylindrical structure with a closed upper end. Multiple electric telescopic rods (2) are provided. The multiple electric telescopic rods (2) are arranged in a rotating array around the axis of the mounting base (1), and their fixed ends are all embedded in the bottom end of the mounting base (1). The telescopic ends of the electric telescopic rods (2) are fixedly connected to the positioning suction cup (3). The lifting assembly is fixedly connected to the mounting base (1). The tapping tool body vertically penetrates the top of the mounting base (1) and can slide up and down on the mounting base (1) through the lifting assembly.

2. The automatic tapping device according to claim 1, characterized in that, The tapping tool body includes a rotating rod (4), a drive motor (5), a tap chuck (6), and a tap (7) detachably mounted on the bottom of the tap chuck (6). The top of the rotating rod (4) is provided with a threaded section, and the smooth section of the rotating rod (4) is movably mounted on the top of the mounting base (1). The bottom end of the rotating rod (4) passes through the mounting base (1) and is internally embedded with the drive motor (5). The output end of the drive motor (5) is fixedly connected to the top of the tap chuck (6).

3. The automatic tapping device according to claim 1, characterized in that, The lifting assembly includes a fixed frame (8), a rack (9), a transverse bevel gear (10), a longitudinal bevel gear (11), and a transmission gear (12). The fixed frame (8) is located on one side of the mounting base (1). The rack (9) is vertically arranged and slides with the inner wall of the fixed frame (8). The bottom of the rack (9) is fixedly connected to the telescopic end of one of the electric telescopic rods (2). The top of the mounting base (1) is provided with a mounting frame (13). The transverse bevel gear (10) is hinged to the mounting frame (13). The transverse bevel gear (10) has a threaded hole and is threadedly connected to the threaded section of the rotating rod (4) through the threaded hole. The longitudinal bevel gear (11) is rotatably connected to the fixed frame (8). The transmission gear (12) is provided on the axle of the longitudinal bevel gear (11). The transmission gear (12) meshes with the rack (9). The transverse bevel gear (10) meshes with the longitudinal bevel gear (11).

4. An automatic tapping device according to claim 2, characterized in that, The bottom end of the rotating rod (4) is provided with a circular groove along the axis, and the drive motor (5) is embedded in the circular groove. The side wall of the tap chuck (6) is provided with a set screw hole, and the set screw hole is threaded with a set screw (14) whose end can abut against the tap shank.

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