A threaded tapping device with automatic positioning
By using a servo motor-driven disc and an electric telescopic rod, the automatic feeding and positioning of the thread tapping equipment is achieved, solving the problem of cumbersome manual operation required by traditional equipment and improving processing efficiency and automation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN XINDING METAL PRODUCTS CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional thread tapping equipment requires manual operation to complete tasks such as material picking, alignment, and clamping in sequence, which is cumbersome and time-consuming, and cannot achieve automatic positioning.
The system employs a servo motor-driven disc and an electric telescopic rod to achieve automatic feeding and positioning. The servo motor drives the disc to rotate, and the protrusions on the disc cause the disc to rotate. The positioning block automatically positions and clamps the workpiece in the groove of the disc. The electric telescopic rod drives the square plate to slide, achieving precise positioning of the workpiece.
It achieves automatic feeding and positioning without the need for repetitive manual operations, improving processing efficiency, reducing manual labor intensity, and simplifying the operation process.
Smart Images

Figure CN224322470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thread tapping technology, and in particular to a thread tapping device with automatic positioning. Background Technology
[0002] Thread tapping equipment is a special mechanical device used to process internal threads on workpieces. It is widely used in industries such as machinery manufacturing, hardware processing, and automotive parts. Its core function is to cut or extrude standard threaded holes through the relative movement of a rotating tap and the workpiece.
[0003] For example, a thread tapping device with automatic positioning, authorized by publication number "CN221952474U", uses a positioning block that slides towards the second fixed plate to fix the screw to be fixed above the worktable. This achieves quick and accurate determination of the workpiece's position and orientation, eliminating the need for manual adjustment and positioning, thus saving operators' time and labor. Traditional tapping equipment requires manual operation of material picking, alignment, and clamping. First, the workpiece is selected from the stockpile, then manually aligned with the tap axis and placed in the worktable fixture. It is then clamped using tools such as wrenches. After processing, the workpiece must be manually loosened and removed again. The entire process relies on repetitive manual operation. Summary of the Invention
[0004] This invention aims to solve the problems existing in the prior art by providing a thread tapping device with automatic positioning, achieving the purpose of positioning without manual feeding.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This thread tapping device with automatic positioning includes a base and a bent plate. The bent plate is fixedly connected to the upper rear side of the base. An electric telescopic rod is fixedly connected to the outer wall of the bent plate. The output end of the electric telescopic rod is fixedly connected to a square plate. The inner wall of the square plate is slidably connected to a vertical rod. The outer wall of the vertical rod is fixedly connected to the bent plate. A fixing block is fixedly connected to the lower end of the square plate. A feeding structure is provided at the upper end of the base.
[0006] To further improve the structure, the feeding structure includes a material box, a first vertical plate, and a sliding rod. The lower end of the material box is fixedly connected to the base, and a cylinder is placed on the inner wall of the material box. The upper end of the base is fixedly connected to the first vertical plate, and the inner wall of the base is fixedly connected to the sliding rod. The outer wall of the sliding rod is slidably connected to the second vertical plate.
[0007] Further improvements include a sliding connection between the outer wall of the second vertical plate and the base.
[0008] To further improve the design, the second vertical plate is connected to the base via bolts and threads.
[0009] To further improve the design, a positioning structure is provided on the outer wall of the first vertical plate.
[0010] Further improvements include a servo motor, the outer wall of which is threadedly connected to the first vertical plate via bolts, the inner walls of the first and second vertical plates are rotatably connected to a round rod via bearings, the outer wall of the round rod is machined with protrusions, the outer wall of the protrusions is slidably connected to a groove machined on the inner wall of the disc, and the output shaft of the servo motor is fixedly connected to the round rod at one end.
[0011] The beneficial effects of this utility model are as follows: Through the cooperation of the feeding structure and the positioning structure, the output shaft of the servo motor rotates to drive the round rod to rotate, the round rod rotates to drive the protrusion to rotate, and the shape of the protrusion can make the disc rotate. When one of the grooves of the disc rotates to the top, the output end of the electric telescopic rod moves to drive the square plate to slide on the vertical rod. The square plate moves to drive the positioning block to move until the groove processed at the lower end of the positioning block abuts against the cylinder, thus completing the positioning and feeding of the cylinder without the need for repeated manual feeding operations. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 for Figure 1 A front sectional view;
[0014] Figure 3 for Figure 1 A partial left-side sectional view;
[0015] Figure 4 for Figure 3 A partial left sectional view of the second vertical plate in the middle;
[0016] Figure 5 for Figure 3 Left sectional view of the middle round rod;
[0017] Figure 6 for Figure 3 Enlarged view of part A in the middle.
[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. Feeding structure; 201. Material box; 202. Cylinder; 3. First vertical plate; 204. Second vertical plate; 205. Slide rod; 3. Positioning structure; 301. Servo motor; 302. Round rod; 303. Protrusion; 304. Disc; 4. Bent plate; 5. Electric telescopic rod; 6. Square plate; 7. Vertical rod; 8. Positioning block. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings:
[0020] See attached document Figure 1-6In this embodiment, a thread tapping device with automatic positioning includes a base 1 and a bent plate 4. The bent plate 4 is fixedly connected to the upper rear side of the base 1. An electric telescopic rod 5 is fixedly connected to the outer wall of the bent plate 4. The output end of the electric telescopic rod 5 is fixedly connected to a square plate 6. The inner wall of the square plate 6 is slidably connected to a vertical rod 7. The square plate 6 slides on the vertical rod 7. The outer wall of the vertical rod 7 is fixedly connected to the bent plate 4.
[0021] The lower end of the square plate 6 is fixedly connected to a fixing block 8, the upper end of the base 1 is provided with a feeding structure 2, the outer wall of the second vertical plate 204 is slidably connected to the base 1, the second vertical plate 204 slides in the base 1, the second vertical plate 204 is threadedly connected to the base 1 by bolts, the second vertical plate 204 is installed on the base 1 by bolts, and the outer wall of the first vertical plate 203 is provided with a positioning structure 3.
[0022] See attached document Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The feeding structure 2 includes a material box 201, a first vertical plate 203 and a sliding rod 205. The lower end of the material box 201 is fixedly connected to the base 1. A cylinder 202 is placed on the inner wall of the material box 201. The upper end of the base 1 is fixedly connected to the first vertical plate 203. The inner wall of the base 1 is fixedly connected to the sliding rod 205. The outer wall of the sliding rod 205 is slidably connected to the second vertical plate 204. The second vertical plate 204 slides on the sliding rod 205.
[0023] See attached document Figure 1 , Figure 2 , Figure 3 and Figure 5 The positioning structure 3 includes a servo motor 301. The outer wall of the servo motor 301 is threadedly connected to the first vertical plate 203 by bolts. The servo motor 301 is mounted on the second vertical plate 203 by bolts. The inner walls of the first vertical plate 203 and the second vertical plate 204 are rotatably connected to the round rod 302 by bearings. The round rod 302 rotates within the first vertical plate 203 and the second vertical plate 204 by bearings. The outer wall of the round rod 302 is machined with a protrusion 303. The outer wall of the protrusion 303 is slidably connected to the groove machined on the inner wall of the disc 304. The protrusion 303 slides within the groove machined on the disc 304. The output shaft of the servo motor 301 is fixedly connected to the round rod 302 at one end.
[0024] Working principle:
[0025] When using thread tapping equipment with automatic positioning:
[0026] Feeding:
[0027] Place the cylinder 202 that needs tapping into the material box 201 (e.g., ...). Figure 2The bottom cylinder 202 falls into the groove machined in the disc 304. The external power supply to the servo motor 301 is connected, starting the servo motor 301. The output shaft of the servo motor 301 rotates, driving the rod 302 to rotate. The rotation of the rod 302 drives the protrusion 303 to rotate. The shape of the protrusion 303 (e.g., ...) Figure 5 This allows the disc 304 to rotate. When one of the grooves on the disc 304 rotates to its highest position (e.g., Figure 2 Start the electric telescopic rod 5. The output end of the electric telescopic rod 5 moves and drives the square plate 6 to slide on the vertical rod 7. The vertical rod 7 limits the square plate 6, causing the square plate 6 to move linearly. The movement of the square plate 6 drives the positioning block 8 to move until the groove processed at the lower end of the positioning block 8 abuts against the cylinder 202. Then, close the electric telescopic rod 5. The electric telescopic rod 5 is self-locking, which completes the positioning and loading of the cylinder 202.
[0028] To further explain, (such as) Figure 2 As shown in the diagram, during the rotation of the cylinder 202 on the left to below the positioning block 8, the lowest cylinder 202 inside the material box 201 slides in the gap between the disc 304 and the material box 201 until the disc 304 rotates 60 degrees. Then, the cylinder 202 slides back into the groove of the disc 304, because the disc 304 has six grooves (e.g., ...). Figure 2 One rotation is 360 degrees. Every 60-degree rotation moves one groove to the position of the next, thus achieving automatic feeding. Every 60-degree rotation of the disc 304 moves one groove to the position below the positioning block 8. The positioning block 8 clamps with the cylinder 202, thus achieving automatic positioning. The servo motor 301 has a self-locking characteristic, so the disc 304 will not rotate on its own. The servo motor 301 is connected to the PLC controller. The parameters of the servo motor 301 are set in advance so that the angle of rotation of the servo motor 301 is 60 degrees each time.
[0029] At this point, the cylinder 202 is processed by an external tapping machine. The model of the tapping machine can be YXZDH3-6. After processing, the positioning block 8 is reset by the electric telescopic rod 5. The above operation is repeated until the processing of the cylinder 202 is completed. It should be further noted that when the processed cylinder 202 is rotated to 80 degrees, it will fall onto the base 1. A collection bucket can be placed at the landing point of the cylinder 202 for collection. Turn off all power, and the working process of the thread tapping equipment with automatic positioning is completed.
[0030] Unscrew the bolts connecting the second vertical plate 204 to the base 1, move the second vertical plate 204, and the movement of the second vertical plate 204 will drive the round rod 302 to move until the round rod 302 moves out of the range of the disc 304. Push the disc 304 to remove the disc 304, thereby replacing the disc 304 with a different size, which is convenient for processing cylinders 202 of various sizes.
[0031] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A thread tapping device with automatic positioning, comprising a base (1) and a bent plate (4), wherein the bent plate (4) is fixedly connected to the upper rear side of the base (1), characterized in that: An electric telescopic rod (5) is fixedly connected to the outer wall of the curved plate (4). The output end of the electric telescopic rod (5) is fixedly connected to the square plate (6). The inner wall of the square plate (6) is slidably connected to the vertical rod (7). The outer wall of the vertical rod (7) is fixedly connected to the curved plate (4). A fixing block (8) is fixedly connected to the lower end of the square plate (6). A feeding structure (2) is provided at the upper end of the base (1).
2. The thread tapping device with automatic positioning according to claim 1, characterized in that: The feeding structure (2) includes a material box (201), a first vertical plate (203) and a slide rod (205). The lower end of the material box (201) is fixedly connected to the base (1). A cylinder (202) is placed on the inner wall of the material box (201). The upper end of the base (1) is fixedly connected to the first vertical plate (203). The inner wall of the base (1) is fixedly connected to the slide rod (205). The outer wall of the slide rod (205) is slidably connected to the second vertical plate (204).
3. The thread tapping device with automatic positioning according to claim 2, characterized in that: The outer wall of the second vertical plate (204) is slidably connected to the base (1).
4. The thread tapping device with automatic positioning according to claim 2, characterized in that: The second vertical plate (204) is threadedly connected to the base (1) by bolts.
5. A thread tapping device with automatic positioning according to claim 2, characterized in that: The outer wall of the first vertical plate (203) is provided with a positioning structure (3).
6. A thread tapping device with automatic positioning according to claim 5, characterized in that: The positioning structure (3) includes a servo motor (301). The outer wall of the servo motor (301) is threadedly connected to the first vertical plate (203) by bolts. The inner walls of the first vertical plate (203) and the second vertical plate (204) are rotatably connected to the round rod (302) by bearings. The outer wall of the round rod (302) is machined with a protrusion (303). The outer wall of the protrusion (303) is slidably connected to the groove machined on the inner wall of the disc (304). The output shaft of the servo motor (301) is fixedly connected to the round rod (302) at one end.