Flexible screw tap structure
By designing a flexible tap structure and utilizing the cooperation of the upper plate, movable column, and semi-circular transmission block, the problem of poor protection effect of existing flexible tap chucks under cutting torque overload is solved, thereby improving the stability and reliability of the tap.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI RUIWANG THREAD TOOLS CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-10
AI Technical Summary
Existing flexible tap chucks are not effective at protecting against cutting torque overload, which makes the taps prone to breakage, and the toothed clutch structure has low reliability.
The flexible tap structure includes a mounting assembly, a clamping assembly, and an adjustment assembly. Through the cooperation of the upper plate, the movable column, and the semi-circular transmission block, the tap is protected from breaking when the cutting torque is too large. The compression and pushing action of the spring allows the tap to move within a small range, thus avoiding breakage.
It improves the reliability and stability of taps, prevents taps from breaking under cutting torque overload, and is simpler and more stable than jaw clutch transmission.
Smart Images
Figure CN224102006U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tap structure technical field, concretely relates to a flexible tap structure. BACKGROUND
[0002] A tap is a cutter for machining internal thread, and is also called a screw tap. Taps are divided into straight flute taps, spiral flute taps and screw tip taps according to their shapes. A tap is connected to a machine tool through a chuck. Existing tap chucks are divided into two categories: fixed chucks and flexible chucks. The advantages of the two types of chucks are as follows: a fixed tap chuck has a simple structure, strong clamping force and is suitable for tapping in all directions; and a flexible tap chuck can automatically center the tap through gap adjustment and protect the tap and thread from damage by adjusting the stop force.
[0003] However, the existing flexible tap has the following problems: in order to prevent the tap from breaking, a common measure is to use a tooth-embedded type clutch chuck. When the cutting torque is overloaded, the tap is protected from breaking. However, in actual work, the tap chuck of this structure has low reliability and often fails to protect the tap, which is inconvenient to use.
[0004] The present application provides a flexible tap structure to solve the above problems. SUMMARY
[0005] The utility model discloses a flexible tap structure to solve the above problems in the background art, that is, the tooth-embedded type clutch chuck is used to protect the tap from breaking when the cutting torque is overloaded. However, in actual work, the tap chuck of this structure has low reliability and poor use effect.
[0006] To solve the above technical problems, the utility model adopts the following technical scheme:
[0007] A flexible tap structure includes a mounting assembly, a clamping assembly, an adjusting assembly and a tap main body. The mounting assembly includes a connecting block and a movable column. The movable column is movably installed in the interior of the connecting block. The clamping assembly is movably installed at the bottom end of the mounting assembly. The clamping assembly includes a movable sleeve and a spring one. The spring one is arranged in the interior of the movable sleeve. The adjusting assembly is movably installed in the interior of the mounting assembly. The adjusting assembly includes a spring two, an upper plate and a semicircular transmission block. The top of the spring two is movably connected to the bottom of the upper plate. The movable column and the exterior of the upper plate are both fixedly connected with the semicircular transmission block. The tap main body is arranged in the interior of the movable column.
[0008] The utility model technical scheme is further improved in that the connecting block is externally provided with a clamping groove. The connecting block is internally fixedly connected with a trapezoidal block. The movable sleeve is movably installed at the exterior of the movable column. The spring one is arranged at the exterior of the movable column.
[0009] The further improvement of the utility model technical scheme lies in that the outer part of the movable column is fixedly connected with a baffle, the top of the spring one is movably connected to the bottom of the baffle, and the bottom end of the movable column is provided with a mounting groove.
[0010] The further improvement of the utility model technical scheme lies in that the inside of the movable column is provided with a square groove, the inside of the movable column movably installs a steel ball, the outside of the steel ball is movably connected to the inside of the movable sleeve, and the inside of the movable sleeve is provided with an annular groove.
[0011] The further improvement of the utility model technical scheme lies in that the inside of the connecting block movably installs a lower plate, the bottom of the connecting block is threadedly connected with a bolt, and the top of the bolt is movably connected to the bottom of the lower plate.
[0012] The further improvement of the utility model technical scheme lies in that the spring two is arranged at the top of the lower plate, the top of the upper plate is provided with a spring three, the inside of the upper plate and the lower plate is provided with a trapezoidal groove, and the upper plate and the lower plate are movably installed at the outside of the trapezoidal block.
[0013] The further improvement of the utility model technical scheme lies in that the movable column is movably connected to the bottom of the upper plate, and the movable column is movably installed at the inside of the lower plate.
[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:
[0015] 1. The utility model provides a flexible tap structure, under the joint action of the upper plate, the movable column and the semicircular transmission block, when the cutting torque is too large, the semicircular transmission block on the movable column pushes away the upper plate, the tap is protected from being broken, and the tooth-embedded type clutch transmission is more simple and stable.
[0016] 2. The utility model provides a flexible tap structure, under the joint action of the upper plate, the spring two and the spring three, the movable column pushes the upper plate, and the spring three is compressed, when the tap is pulled out, the movable column compresses the spring two, so that the tap can move in a small range, and the tap is protected from being broken. DRAWINGS
[0017] Figure 1 It is the structure schematic view of the flexible tap structure of the utility model;
[0018] Figure 2 It is the structure schematic view of the bottom of the utility model;
[0019] Figure 3 It is the structure schematic view of the installation of the utility model;
[0020] Figure 4The utility model discloses an adjusting assembly's structure schematic drawing.
[0021] Figure 5 It is the inside structure schematic drawing of the utility model.
[0022] In the drawing: 1, installation assembly, 2, clamping assembly, 3, adjusting assembly, 4, tap main body, 10, connecting block, 11, card slot, 12, installation slot, 13, trapezoidal block, 14, movable column, 20, movable sleeve, 21, spring one, 22, steel ball, 23, baffle, 24, square slot, 25, annular groove, 30, bolt, 31, lower plate, 32, spring two, 33, upper plate, 34, spring three, 35, semicircular transmission block, 36, trapezoidal slot. DETAILED DESCRIPTION
[0023] The utility model makes further detailed explanation in combination with example:
[0024] As Figure 1 and Figure 2 The utility model provides a flexible tap structure, including installation assembly 1, clamping assembly 2, adjusting assembly 3 and tap main body 4, tap main body 4 sets up in the inside of movable column 14, movable column 14 movable installation is in the inside of connecting block 10, clamping assembly 2 movable installation is in the bottom end of installation assembly 1, through clamping assembly 2 will tap main body 4 be fixed, adjusting assembly 3 movable installation is in the inside of installation assembly 1, through adjusting assembly 3 provides certain protection when tapping tap main body 4.
[0025] As Figures 2-5 The utility model discloses an adjusting assembly's structure schematic drawing.
[0026] As Figures 3-5 The utility model discloses an adjusting assembly's structure schematic drawing.
[0027] As Figures 2-5As shown, the clamping assembly 2 includes a movable sleeve 20 and a spring 21, the spring 21 is arranged inside the movable sleeve 20, the outer portion of the movable column 14 is fixedly connected with a baffle 23, the top portion of the spring 21 is movably connected with the bottom portion of the baffle 23, the inside of the movable column 14 is provided with a square slot 24, the inside of the movable column 14 movably installs a steel ball 22, the outside of the steel ball 22 is movably connected with the inside of the movable sleeve 20, the inside of the movable sleeve 20 is provided with an annular groove 25, when installing, the movable sleeve 20 is pulled upward, so that the steel ball 22 can enter the annular groove 25, then the tap main body 4 enters the square slot 24, and the movable sleeve 20 is released, under the action of the spring 21, the tap main body 4 is fixed through the movable sleeve 20 and the steel ball 22.
[0028] As shown in Figures 3-5 , the main adjusting assembly 3 includes a spring 32, an upper plate 33 and a semicircular transmission block 35, the top portion of the spring 32 is movably connected with the bottom portion of the upper plate 33, the outside of the movable column 14 and the upper plate 33 are fixedly connected with the semicircular transmission block 35, the inside of the connecting block 10 movably installs a lower plate 31, and the rotary motion is transmitted through the cooperation of the upper plate 33 and the upper semicircular transmission block 35 of the movable column 14.
[0029] As shown in Figure 3 and Figure 4 , the bottom portion of the connecting block 10 is threadedly connected with a bolt 30, the top portion of the bolt 30 is movably connected with the bottom portion of the lower plate 31, the position of the lower plate 31 is adjusted through the bolt 30, so that the lower plate 31 compresses the spring 32 and the spring 34, and then the cutting torque size when the movable column 14 is separated from the upper plate 33 is adjusted.
[0030] As shown in Figures 3-5 , the spring 32 is arranged at the top portion of the lower plate 31, the top portion of the upper plate 33 is provided with a spring 34, the movable column 14 is movably connected with the bottom portion of the upper plate 33, and the movable column 14 is movably installed in the inside of the lower plate 31, the upper plate 33 and the movable column 14 are closely attached through the spring 34 and the spring 32, when tapping, the tap main body 4 pushes the movable column 14 to move upward, and the upper plate 33 is pushed through the movable column 14, so that the upper plate 33 compresses the spring 34, when the tap main body 4 is pulled out after tapping is completed, the movable column 14 compresses the spring 32 under the pulling of the tap main body 4, at the same time, the spring 34 pushes the upper plate 33 downward, so that the transmission of the rotary motion of the movable column 14 is maintained, through the common action of the upper plate 33, the spring 32 and the spring 34, the tap main body 4 can move in a small range, so that the tap main body 4 is protected from being pulled off.
[0031] The working principle of the flexible tap structure will be described below.
[0032] As shown in Figures 1-5As shown, in the use of the flexible tap structure, the movable sleeve 20 is pulled upward, enabling the steel ball 22 to enter the annular groove 25, and then the tap body 4 enters the square groove 24 through the mounting groove 12 at the bottom of the movable column 14, the movable sleeve 20 is released, and the tap body 4 is fixed by the movable sleeve 20 and the steel ball 22 under the action of the spring one 21. When tapping, the connecting block 10 is rotated, and the rotary motion is transmitted to the upper plate 33 through the trapezoidal block 13 and the trapezoidal groove 36. The upper plate 33 is tightly attached to the movable column 14 through the spring three 34, and the rotary motion is transmitted through the cooperation of the upper plate 33 and the upper semicircular transmission block 35 of the movable column 14. When tapping, the tap body 4 pushes the movable column 14 to move upward, and pushes the upper plate 33 through the movable column 14, so that the upper plate 33 compresses the spring three 34. When the tap body 4 is pulled out after tapping is completed, the movable column 14 compresses the spring two 32 under the pulling of the tap body 4, and the spring three 34 pushes the upper plate 33 downward, so that the transmission of the rotary motion of the movable column 14 is maintained. Through the joint action of the upper plate 33, the spring two 32 and the spring three 34, the tap body 4 can move in a small range, so that the tap body 4 is protected from being pulled off. When the tapping cutting torque is too large, the semicircular transmission block 35 on the movable column 14 will be forced to move, which will push the upper plate 33 away, so that the movable column 14 and the upper plate 33 are separated, and the transmission of the motion is stopped, so that the tap body 4 stops rotating. Through the joint action of the upper plate 33, the movable column 14 and the semicircular transmission block 35, the tap body 4 is protected from being broken. Compared with the toothed engagement type clutch transmission, it is more simple and stable. The position of the lower plate 31 is adjusted by the bolt 30, so that the lower plate 31 compresses the spring two 32 and the spring three 34, and then the cutting torque when the movable column 14 and the upper plate 33 are separated is adjusted.
[0033] The above is a detailed description of the present application, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the present application, the modifications or improvements are within the scope of the present application.
Claims
1. A flexible tap structure comprising a mounting assembly (1), a clamping assembly (2), an adjustment assembly (3) and a tap body (4), characterized in that: The mounting assembly (1) comprises a connecting block (10) and a movable column (14), the movable column (14) is movably installed in the connecting block (10), the clamping assembly (2) is movably installed at the bottom end of the mounting assembly (1), the clamping assembly (2) comprises a movable sleeve (20) and a spring (21), the spring (21) is arranged in the movable sleeve (20), the adjusting assembly (3) is movably installed in the mounting assembly (1), the adjusting assembly (3) comprises a spring (32), an upper plate (33) and a semicircular transmission block (35), the top of the spring (32) is movably connected to the bottom of the upper plate (33), the movable column (14) and the outer portion of the upper plate (33) are fixedly connected with the semicircular transmission block (35), and the tap body (4) is arranged in the movable column (14).
2. A flexible tap structure according to claim 1, wherein: The outer portion of the connecting block (10) is provided with a clamping groove (11), the inner portion of the connecting block (10) is fixedly connected with a trapezoidal block (13), the movable sleeve (20) is movably installed on the outer portion of the movable column (14), and the spring (21) is arranged on the outer portion of the movable column (14).
3. The flexible tap structure of claim 1, wherein: The outer portion of the movable column (14) is fixedly connected with a baffle (23), the top of the spring (21) is movably connected to the bottom of the baffle (23), and the bottom end of the movable column (14) is provided with a mounting groove (12).
4. The flexible tap structure of claim 1, wherein: The inner portion of the movable column (14) is provided with a square groove (24), the inner portion of the movable column (14) movably installs a steel ball (22), the outer portion of the steel ball (22) is movably connected to the inner side of the movable sleeve (20), and the inner portion of the movable sleeve (20) is provided with an annular groove (25).
5. The flexible tap structure of claim 1, wherein: The inner portion of the connecting block (10) movably installs a lower plate (31), the bottom of the connecting block (10) is threadedly connected with a bolt (30), and the top of the bolt (30) is movably connected to the bottom of the lower plate (31).
6. A flexible tap structure according to claim 5, wherein: The spring (32) is arranged on the top of the lower plate (31), the top of the upper plate (33) is provided with a spring (34), the inner portions of the upper plate (33) and the lower plate (31) are provided with trapezoidal grooves (36), and the upper plate (33) and the lower plate (31) are movably installed on the outer portion of the trapezoidal block (13).
7. The flexible tap structure of claim 1 wherein: The movable column (14) is movably connected to the bottom of the upper plate (33), and the movable column (14) is movably installed in the inner portion of the lower plate (31).