Quick die tool for replaceable round dies

Abstract

This utility model relates to the field of circular die threading technology, and more particularly to a quick threading tool with replaceable circular dies. It includes a threading tool body, with an insert plate movably connected to one side of the tool body, and a circular die body fixedly connected to one side of the insert plate. A disassembly and replacement mechanism, including an insert plate, is installed on the inner surface of the threading tool body. This quick threading tool with replaceable circular dies allows users to quickly install and disassemble the circular die body through the insertion and engagement of the insert plate in the disassembly and replacement mechanism, without requiring complex tools or professional skills. Combined with the adjustment function of the threaded rod and nut, it can adapt to circular dies of different specifications, meeting the needs of multi-size thread processing. The coordinated design of the return spring and the limit stop ensures that the components automatically reset and are accurately positioned after disassembly and assembly, reducing adjustment time and significantly improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circular die threading technology, and in particular to a quick threading tool with replaceable circular dies. Background Technology

[0002] A round die is a thread-machining tool used for machining or correcting external threads. Its shape resembles a nut, essentially functioning as a nut with high hardness. Several rows of chip holes are drilled near the outer diameter of the thread, forming a cutting edge. The cutting part is the tapered section at both ends of the round die. This cutting part is not a conical surface, but rather an Archimedean spiral surface formed by grinding, resulting in a curved rake face. The rake angle is largest where the curvature is small and smallest where the curvature is large. Several chip-removal holes are made around the threaded hole to facilitate chip removal during machining. The round die needs to be replaced when the user needs to use it.

[0003] An investigation revealed that a Chinese utility model patent, CN210817803U, discloses an adjustable-length round die tool. The tool includes a round die body with a connecting part fixedly installed on one side. A first connecting plate is fixedly installed on the top of the connecting part. A first bolt and a third bolt are threaded through the interior of the first connecting plate. This adjustable-length round die tool, through a motor rotation, drives a ball screw, which in turn drives a ball bearing, which in turn drives a rotating shaft. This rotating shaft then moves an extension rod to the right, thus allowing for adjustment of the round die's handle length. Furthermore, by loosening the first and second bolts, a movable plate can be moved downwards, increasing the contact area between the movable plate and the first support plate, and decreasing the contact area between the movable plate and the second support plate, thereby adjusting the height between the round die handle and the round die body.

[0004] The aforementioned patent has limitations in functionality when users need to disassemble, assemble, and replace the threading tool. This requires users to purchase round dies of different sizes, increasing user costs. Furthermore, the tool is prone to structural damage when users need to use it, thus affecting its usability. Therefore, there is a particular need for a quick threading tool with replaceable round dies. Utility Model Content

[0005] The purpose of this invention is to provide a quick threading tool with replaceable round dies to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quick threading tool with replaceable round dies, comprising a threading tool body, an insert plate movably connected to one side of the threading tool body, a round die body fixedly connected to one side of the insert plate, and a disassembly and replacement mechanism installed on the inner ring surface of the threading tool body.

[0007] The disassembly and replacement mechanism includes a plug plate, which is installed on the inner ring of the threading tool body. A push handle is fixedly connected to one side of the plug plate, a support connecting plate is fixedly connected to one side of the threading tool body, a cylindrical insert rod is fixedly connected to one side of the threading tool body, a collar is movably connected to one side of the cylindrical insert rod, a fixing block is fixedly connected to one side of the collar, and a nut is fixedly connected to one side of the fixing block.

[0008] Preferably, a return spring is fixedly connected to one side of the threading tool body, and the return spring connects the support connecting plate and the threading tool body.

[0009] Preferably, a threaded rod is movably connected to one side of the nut, and the threaded rod is connected between the nut and the fixing block.

[0010] Preferably, the nut is connected between a fixing block and a collar, and the fixing block is symmetrically arranged with the vertical center line of the nut as the axis of symmetry.

[0011] Preferably, an anti-slip operating handle is fixedly connected to one side of the collar, and the anti-slip operating handle is connected between the collar and the cylindrical insert rod.

[0012] Preferably, one side of the collar has an insertion opening, and the insertion opening is connected to the collar.

[0013] Preferably, a limiting baffle is fixedly connected to one side of the threading tool body, and the limiting baffle is symmetrically arranged vertically with the horizontal dividing line of the threading tool body as the axis of symmetry.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By using the plug-in plate in the disassembly and replacement mechanism, users can quickly install and disassemble the main body of the round die without the need for complicated tools or professional skills. With the adjustment function of the threaded rod and nut, it can be adapted to round dies of different specifications to meet the needs of multi-size thread processing. The coordinated design of the return spring and the limit baffle ensures that the parts automatically return to their correct positions after disassembly and assembly, reducing adjustment time and significantly improving work efficiency.

[0016] The combination design of the anti-slip operating handle and collar allows for stable one-handed operation, preventing the tool from slipping or being misoperated due to hand slippage. The precise matching of the cylindrical insert and the insertion opening ensures that the main body of the round die remains vertically stable during threading, reducing the risk of thread misalignment or tooth breakage. The symmetrically arranged limit baffles further restrict the range of movement of the components, preventing structural damage due to excessive pushing and pulling, extending the tool's service life, and ensuring the safety of the operator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top-sectional view of the present invention.

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Threading tool body; 2. Insert plate; 3. Disassembly and replacement mechanism; 301. Insert plate; 302. Push handle; 303. Return spring; 304. Support connecting plate; 305. Cylindrical insert rod; 306. Collar; 307. Insertion opening; 308. Anti-slip operating handle; 309. Limiting baffle; 310. Fixing block; 311. Nut; 312. Threaded rod; 4. Round die body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a quick threading tool with replaceable round dies, including a threading tool body 1, characterized in that: a plate 2 is movably connected to one side of the threading tool body 1, a round die body 4 is fixedly connected to one side of the plate 2, and a disassembly and replacement mechanism 3 is installed on the inner ring surface of the threading tool body 1.

[0024] The disassembly and replacement mechanism 3 includes a connector plate 301, which is installed on the inner ring of the threading tool body 1. A push handle 302 is fixedly connected to one side of the connector plate 301, a support connecting plate 304 is fixedly connected to one side of the threading tool body 1, a cylindrical insert rod 305 is fixedly connected to one side of the threading tool body 1, a collar 306 is movably connected to one side of the cylindrical insert rod 305, a fixing block 310 is fixedly connected to one side of the collar 306, and a nut 311 is fixedly connected to one side of the fixing block 310. When the user needs to use the quick threading tool with replaceable round dies, the user pushes the push handle 302, causing the connector plate 301 to move within the inner ring of the threading tool body 1. When the insertion plate 301 moves to the position corresponding to the insertion plate 2, the insertion plate 2 inserts into the slot of the insertion plate 301, realizing the quick installation of the round die body 4. For disassembly, push the push handle 302 in the opposite direction, and the insertion plate 301 disengages from the insertion plate 2, allowing the round die body 4 to be removed. During the movement of the insertion plate 301, the return spring 303 is compressed. When the user releases the push handle 302, the elastic force of the return spring 303 causes the insertion plate 301 to automatically return to its original position, preparing for the next operation. The user rotates the threaded rod 312, which is connected axially to the nut 311 and the fixing block 310. The end of the threaded rod 312 can abut against the insertion plate 2 or the round die body 4. To further secure the round die and prevent it from loosening during threading, the threaded rod 312 can be adjusted to accommodate round dies of different sizes. The fixing block 310 is symmetrically positioned with the vertical center line of the nut 311 as the axis of symmetry, ensuring uniform force distribution on the threaded rod 312 during adjustment and improving the stability of the round die. The user can securely operate the collar 306 by gripping the anti-slip handle 308. The surface of the anti-slip handle 308 is typically made of anti-slip material or has a textured design to increase friction between the hand and the tool, preventing slippage. The collar 306 is movably connected to the cylindrical insert 305 and can move axially along the cylindrical insert 305. During operation... The movement trajectory of the collar 306 is restricted by the cylindrical insert 305, ensuring stable operation. At the same time, the design of the insertion opening 307 facilitates the quick installation and removal of the collar 306 and the cylindrical insert 305. The limiting baffle 309 is symmetrically arranged above and below with the horizontal dividing line of the threading tool body 1 as the axis of symmetry. When the insertion plate 301 or the collar 306 moves to the limit position, the limiting baffle 309 acts as a stop to prevent excessive movement of the parts from causing structural damage or tool detachment. The close cooperation and synergy between the parts ensure the stability and safety of the tool during the threading process. Even in high-intensity working environments, it can effectively prevent safety accidents caused by loosening or detachment of parts.

[0025] Furthermore, a return spring 303 is fixedly connected to one side of the threading tool body 1, and the return spring 303 connects the support connecting plate 304 and the threading tool body 1. The return spring 303, which connects the support connecting plate 304 and the threading tool body 1, makes it easy for the user to connect the return spring 303 and the threading tool body 1.

[0026] Furthermore, a threaded rod 312 is movably connected to one side of the nut 311, and the threaded rod 312 is connected between the nut 311 and the fixing block 310. The threaded rod 312, which is connected between the nut 311 and the fixing block 310, makes it easy for the user to connect the threaded rod 312 and the fixing block 310.

[0027] Furthermore, the nut 311 is connected to the retaining block 310 and the collar 306, and the retaining block 310 is symmetrically arranged with the vertical center line of the nut 311 as the axis of symmetry. The retaining block 310, which is symmetrically arranged with the vertical center line of the nut 311 as the axis of symmetry, makes it convenient for the user to connect the nut 311 and the collar 306.

[0028] Furthermore, a non-slip operating handle 308 is fixedly connected to one side of the collar 306, and the non-slip operating handle 308 is connected between the collar 306 and the cylindrical insert 305. The non-slip operating handle 308, which is connected between the collar 306 and the cylindrical insert 305, makes it easy for the user to connect the non-slip operating handle 308 and the cylindrical insert 305.

[0029] Furthermore, a plug-in opening 307 is provided on one side of the collar 306, and the size of the plug-in opening 307 and the collar 306 are matched. The plug-in opening 307, which is matched in size with the collar 306, can facilitate the user to limit the use of the collar 306.

[0030] Furthermore, a limiting baffle 309 is fixedly connected to one side of the threading tool body 1, and the limiting baffle 309 is symmetrically arranged up and down with the horizontal dividing line of the threading tool body 1 as the axis of symmetry. The limiting baffle 309, which is symmetrically arranged up and down with the horizontal dividing line of the threading tool body 1 as the axis of symmetry, can facilitate the user to limit the use of the plug plate 301.

[0031] Working principle: When the user needs to use the quick threading tool with replaceable round dies, the user pushes the push handle 302, which moves the insertion plate 301 within the inner ring of the threading tool body 1. When the insertion plate 301 moves to the position corresponding to the insertion plate 2, the insertion plate 2 is inserted into the slot of the insertion plate 301, realizing the quick installation of the round die body 4. When disassembling, push the push handle 302 in the opposite direction, and the insertion plate 301 is disengaged from the insertion plate 2, so the round die body 4 can be removed. During the movement of the insertion plate 301, the return spring 303 is compressed. When the user releases the push handle 302, the elastic force of the return spring 303 makes the insertion plate 301 automatically return to its original position, preparing for the next operation. The user rotates the threaded rod 312, which is connected to the nut 311 and the fixing block 310 by threads, realizing axial movement. The end of the threaded rod 312 can abut against the insertion plate 2 or the round die body 4 to further fix the round die and prevent it from loosening during the threading process.

[0032] Meanwhile, by adjusting the screw depth of the threaded rod 312, it can accommodate round dies of different sizes. The fixing block 310 is symmetrically arranged with the vertical center line of the nut 311 as the axis of symmetry, ensuring that the threaded rod 312 is subjected to uniform force during adjustment and improving the stability of the round die fixing. The user can operate the collar 306 steadily by holding the anti-slip operating handle 308. The surface of the anti-slip operating handle 308 is usually made of anti-slip material or textured design to increase the friction between the hand and the tool and prevent the hand from slipping. The collar 306 is movably connected to the cylindrical insert rod 305 and can move along the axial direction of the cylindrical insert rod 305. During operation, the user moves along the track of the collar 306. The trace is restricted by the cylindrical insert 305 to ensure stable operation. At the same time, the design of the insertion opening 307 facilitates the quick installation and removal of the collar 306 and the cylindrical insert 305. The limiting baffle 309 is symmetrically arranged above and below with the horizontal dividing line of the threading tool body 1 as the axis of symmetry. When the insertion plate 301 or the collar 306 moves to the limit position, the limiting baffle 309 acts as a stop to prevent excessive movement of the parts from causing structural damage or tool detachment. The close cooperation and synergy between the parts ensure the stability and safety of the tool during the threading process. Even in high-intensity working environments, it can effectively prevent safety accidents caused by loosening or detachment of parts.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick tapping tool for replaceable round dies, comprising a tapping tool body (1), characterized in that: A insert plate (2) is movably connected to one side of the threading tool body (1), and a round die body (4) is fixedly connected to one side of the insert plate (2). A disassembly and replacement mechanism (3) is installed on the inner ring surface of the threading tool body (1). The disassembly and replacement mechanism (3) includes a plug plate (301), which is installed on the inner ring of the threading tool body (1). A push handle (302) is fixedly connected to one side of the plug plate (301), a support connecting plate (304) is fixedly connected to one side of the threading tool body (1), a cylindrical insert rod (305) is fixedly connected to one side of the threading tool body (1), a collar (306) is movably connected to one side of the cylindrical insert rod (305), a fixing block (310) is fixedly connected to one side of the collar (306), and a nut (311) is fixedly connected to one side of the fixing block (310).

2. The quick threading tool with replaceable round dies according to claim 1, characterized in that: A return spring (303) is fixedly connected to one side of the threading tool body (1), and the return spring (303) connects the support connecting plate (304) and the threading tool body (1).

3. The quick threading tool with replaceable round dies according to claim 1, characterized in that: A threaded rod (312) is movably connected to one side of the nut (311), and the threaded rod (312) is connected between the nut (311) and the fixing block (310).

4. The quick threading tool with replaceable round dies according to claim 1, characterized in that: The nut (311) is connected between the fixing block (310) and the collar (306), and the fixing block (310) is symmetrically arranged with the vertical center line of the nut (311) as the axis of symmetry.

5. The quick threading tool with replaceable round dies according to claim 1, characterized in that: One side of the collar (306) is fixedly connected to an anti-slip operating handle (308), and the anti-slip operating handle (308) is connected between the collar (306) and the cylindrical insert (305).

6. The quick threading tool with replaceable round dies according to claim 1, characterized in that: The collar (306) has an insertion opening (307) on one side, and the insertion opening (307) and the collar (306) are matched in size.

7. The quick threading tool with replaceable round dies according to claim 1, characterized in that: A limiting baffle (309) is fixedly connected to one side of the threading tool body (1), and the limiting baffle (309) is symmetrically arranged up and down with the horizontal dividing line of the threading tool body (1) as the axis of symmetry.

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