An automatically positionable tapping device
By introducing an automatic positioning system into the tapping machine, and using a motor and encoder to control the movement of the electric tap assembly, the problem of frequent manual operation in existing tapping machines is solved, achieving efficient automatic positioning and precise tapping.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN PINJU MACHINERY CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-02
AI Technical Summary
Existing tapping machines require operators to frequently move the tapping power head, resulting in high labor intensity and low tapping accuracy.
An automatic positioning system consisting of first, second, and third swing arms is adopted. The electric tap assembly is automatically positioned and moved by a motor and encoder in conjunction with a controller, reducing manual operation.
It reduced the labor intensity of workers and improved tapping accuracy and efficiency.
Smart Images

Figure CN224309746U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to tapping machines, specifically to a tapping device that can be automatically positioned. Background Technology
[0002] A tapping machine is a specialized piece of equipment used for automated tapping of products. Its working principle involves using a motor to drive the tap to rotate, thereby achieving the tapping process. Chinese patent document (publication number: CN 218135484 U; publication date: December 27, 2022) discloses a rocker arm tapping machine with automatic reversing locking, including a tapping power head, an inclined bracket, and a horizontal bracket. The tapping power head is mounted on a power head seat, and the power head seat rotates 90 degrees from vertical to horizontal at the top of the inclined bracket. The key feature is that the top of the inclined bracket is connected to a support plate, and the power head seat is rotatably connected to the support plate. The support plate has a waist-shaped groove to limit the 90-degree rotation of the power head seat. A movable claw is provided on the support plate, and the power head seat has a locking finger corresponding to the claw. When the power head seat is in a vertical state, the claw holds the locking finger from the outside to lock the power head seat. The claw has a handle. When the handle is manually pressed, the claw will lift up and leave the gripping finger, and the power head seat will rotate inward from the vertical state to the horizontal state.
[0003] The drawback of the above technical solution is that each time a tapping operation is performed, the operator needs to hold one end of the tapping power head and apply force to drive the tilting bracket and the horizontal bracket to swing, thereby moving the tapping power head to the required tapping point. Especially when performing batch tapping operations, the operator needs to frequently move the tapping power head to the required position for tapping, which greatly increases the labor intensity of the workers and cannot guarantee the accuracy of tapping. Utility Model Content
[0004] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide an automatically positioning tapping device for solving the above-mentioned problems.
[0005] Therefore, this utility model is implemented using the following solution:
[0006] An automatically positioned tapping device is characterized by comprising a first swing arm, a second swing arm, and a third swing arm. One end of the first swing arm is connected to a first horizontal swing drive assembly. The second swing arm is disposed at the other end of the first swing arm and connected to a second horizontal swing drive assembly. One end of the third swing arm is disposed on the second swing arm and connected to a vertical swing drive assembly. An electric tap assembly is disposed on the third swing arm. The device also includes a positioning button and a start button. When the first, second, and third swing arms are manually driven to move the electric tap assembly to the tapping point, pressing the positioning button transmits a positioning signal to the controller. After the electric tap assembly leaves the tapping point, pressing the start button allows the controller to control the first, second, and vertical swing drive assemblies to move the electric tap assembly to the tapping point for tapping operations. After tapping is completed, the controller moves the electric tap assembly to a standby position.
[0007] The first horizontal swing drive assembly includes a first motor, the output end of which is connected to a first reducer, the output end of which is connected to a first rotating shaft, and the first rotating shaft is connected to one end of a first swing arm. The second horizontal swing drive assembly includes a second motor, the output end of which is connected to a second reducer, the output end of which is connected to a second rotating shaft, and the second rotating shaft is connected to one end of a second swing arm. The vertical swing drive assembly includes a third motor, the output end of which is connected to a third reducer, the output end of which is connected to a third rotating shaft, and the third rotating shaft is connected to one end of a third swing arm.
[0008] The first, second, and third swing arms can be manually driven to move the electric tap assembly to multiple tapping points, and the positioning buttons can be pressed in sequence to send positioning signals to the controller.
[0009] Encoders are provided for the first, second, and third motors. The encoders can detect the rotation of the motors. When the positioning button is pressed, the encoders will send the motor rotation information back to the controller. The controller analyzes the information fed back by the encoders to obtain the position of the tapping point.
[0010] The above-mentioned technical solution provides an automatically positioned tapping device. According to the tapping needs, the electric tap assembly can be manually pulled to the tapping point first, and then the positioning button can be pressed to record the tapping position. After that, when performing batch tapping, each time a new part to be tapped is put on, the drive assembly can be controlled to drive the swing arm to move, thereby moving the electric tap assembly to the tapping point for tapping. This eliminates the need for frequent manual pulling, greatly reducing the labor intensity of workers, and ensuring the tapping accuracy. Attached Figure Description
[0011] The present invention includes the following figures:
[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0013] As shown in the figure, the present invention discloses an automatically positioned tapping device, including a first swing arm 4, a second swing arm 9, and a third swing arm 12. One end of the first swing arm 4 is connected to a first horizontal swing drive assembly. The second swing arm 9 is disposed at the other end of the first swing arm 4 and connected to the second horizontal swing drive assembly. One end of the third swing arm 12 is disposed on the second swing arm 9 and connected to the vertical swing drive assembly. An electric tap assembly 13 is disposed on the third swing arm 12. The device also includes a positioning button 14 and a start button 15. When the first, second, and third swing arms are manually driven to move the electric tap assembly 13 to the tapping point, the positioning button 14 is pressed to transmit a positioning signal to the controller. After the electric tap assembly 13 leaves the tapping point, the start button 15 is pressed. The controller can control the first, second, and vertical swing drive assemblies to move the electric tap assembly 13 to the tapping point for tapping operations. After tapping is completed, the controller moves the electric tap assembly 13 to the standby position.
[0014] Specifically, the first horizontal swing drive assembly includes a first motor 1, the output end of which is connected to a first reducer 2, the output end of which is connected to a first rotating shaft 3, and the first rotating shaft 3 is connected to one end of a first swing arm 4. The second horizontal swing drive assembly includes a second motor 5, the output end of which is connected to a second reducer 6, the output end of which is connected to a second rotating shaft 8, and the second rotating shaft 8 is connected to one end of a second swing arm 9. The vertical swing drive assembly includes a third motor 10, the output end of which is connected to a third reducer 11, the output end of which is connected to a third rotating shaft, and the third rotating shaft is connected to one end of a third swing arm 12. By controlling the corresponding motor to drive the corresponding rotating shaft to rotate, the corresponding swing arm can be driven to swing, thereby automatically driving the electric tap assembly 13 to move. It should also be noted that the motor and the corresponding rotating shaft in this application are coaxially arranged. However, depending on different installation requirements, the motor and rotating shaft can also be arranged perpendicularly and transmission can be achieved through a transmission structure such as helical gears.
[0015] Furthermore, the first, second, and third swing arms can be manually driven to move the electric tap assembly 13 to multiple tapping points, and the positioning button 14 can be pressed in sequence to send a positioning signal to the controller, which can meet the need to tap multiple different points on a single workpiece.
[0016] Furthermore, encoders are installed for the first motor 1, the second motor 5, and the third motor 10. These encoders detect the motor's rotation. When the positioning button 14 is pressed, the encoders send the motor's rotation information to the controller. The controller analyzes the information from the encoders to determine the position of the tapping point. By setting encoders to detect and record the number of rotations and angles of the motors in real time, the controller can obtain position information based on the feedback motor rotation data, and then control the motors to precisely move the electric tap assembly 13 to the tapping point.
[0017] The working principle of this invention is as follows: Each motor is initially powered off. The operator manually pulls the electric tap assembly 13 to the tapping point. During this process, the swing arms swing, which in turn drives the motors to rotate. The encoder detects and records the motor rotation in real time. At this point, pressing the positioning button 14 causes the encoder to feed back the motor rotation information (number of rotations, angle, etc.) to the controller. The controller then calculates and analyzes the feedback information to determine the tapping point position. Finally, the electric tap assembly 13 is reset to the standby position for batch tapping. During operation, after placing the workpiece to be tapped in the designated position, press the start button 15. At this time, the controller will control the rotation of each motor according to the previously determined tapping point, driving each swing arm to swing to the appropriate position, and then driving the electric tap assembly 13 to move to the tapping point for tapping. If there are multiple tapping points, the electric tap assembly 13 will be driven to each tapping point in sequence for tapping. Finally, after tapping is completed, the electric tap assembly 13 will be controlled to move to the standby position. After replacing the workpiece with a new one, pressing the start button 15 will automatically start the tapping operation again.
[0018] This invention's structure enables the tap assembly to automatically move to the tapping position for tapping, eliminating the need for frequent manual pulling, greatly reducing the labor intensity of workers, and ensuring the accuracy of tapping.
Claims
1. An automatically positioned tapping device, characterized in that: The device includes a first swing arm (4), a second swing arm (9), and a third swing arm (12). One end of the first swing arm (4) is connected to a first horizontal swing drive assembly. The second swing arm (9) is located at the other end of the first swing arm (4) and is connected to the second horizontal swing drive assembly. One end of the third swing arm (12) is located on the second swing arm (9) and is connected to the vertical swing drive assembly. An electric tap assembly (13) is located on the third swing arm (12). The device also includes a positioning button (14) and a start button (15). When the first, second, and third swing arms are manually driven to move the electric tap assembly (13) to the tapping point, the positioning button (14) is pressed to transmit the positioning signal to the controller. After the electric tap assembly (13) leaves the tapping point, the start button (15) is pressed. The controller can control the first, second horizontal swing drive assembly and the vertical swing drive assembly to move the electric tap assembly (13) to the tapping point for tapping. After the tapping is completed, the controller can move the electric tap assembly (13) to the standby position.
2. The tapping device with automatic positioning according to claim 1, characterized in that: The first horizontal swing drive assembly includes a first motor (1), the output end of the first motor (1) is connected to a first reducer (2), the output end of the first reducer (2) is connected to a first rotating shaft (3), and the first rotating shaft (3) is connected to one end of a first swing arm (4). The second horizontal swing drive assembly includes a second motor (5), the output end of the second motor (5) is connected to a second reducer (6), the output end of the second reducer (6) is connected to a second rotating shaft (8), and the second rotating shaft (8) is connected to one end of a second swing arm (9). The vertical swing drive assembly includes a third motor (10), the output end of the third motor (10) is connected to a third reducer (11), the output end of the third reducer (11) is connected to a third rotating shaft, and the third rotating shaft is connected to one end of a third swing arm (12).
3. The tapping device with automatic positioning according to claim 1, characterized in that: The first, second and third swing arms can be manually driven to move the electric tap assembly (13) to multiple tapping points, and the positioning button (14) can be pressed in sequence to send a positioning signal to the controller.
4. The tapping device with automatic positioning according to claim 2, characterized in that: Encoders are provided for the first motor (1), the second motor (5) and the third motor (10). The encoders can detect the rotation of the motors. When the positioning button (14) is pressed, the encoder will feed back the rotation information of the motor to the controller. The controller analyzes the information fed back by the encoder to obtain the position of the tapping point.