Electric threading tool

Abstract

The utility model belongs to the technical field of electric tools, and particularly relates to an electric threading tool. The utility model provides an electric threading tool and aims to solve the problem that a threading die is inconvenient to use in the prior art. An electric threading tool comprises a shell, and a threading die is fixed in the shell. The shell comprises an upper shell body and a lower shell body detachably connected to the upper shell body, and an adapter connected with an electric tool is arranged on the upper shell body. The detachable connection design is adopted between the upper shell and the lower shell, so that a user can easily separate the upper shell from the lower shell, and threading dies and correction sleeves of different specifications can be conveniently replaced. According to the design, the maintenance work is greatly simplified, the operation difficulty is reduced, and the working efficiency is improved. By optimizing a connecting structure, such as using a buckle, a screw and other quick disassembly and assembly parts, a user can complete replacement of the threading die and the correction sleeve in a short time, and professional tools or complex operations are not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric tools, and in particular relates to an electric threading tool. Background Art

[0002] In mechanical processing, it is often necessary to use tapping to process external threads on parts. For example, when processing external threads on pipes, different tapping methods are selected according to different thread sizes. This is a low-speed multi-blade profiling cutting method. The tool blade is in the shape of an internal thread, and the cutting edge of the tapping is used to cut the part material to achieve the purpose of processing external bolts.

[0003] The existing method of using a screwdriver is usually to directly use the screwdriver. The worker applies force to the outer wall of the screwdriver by hand and rotates the screwdriver to cut the part. This manual processing method causes uneven force on the screwdriver and may cause the workpiece to break during the process of processing the external thread. In addition, the operation is very inconvenient when processing external threads. Utility Model Content

[0004] The utility model provides an electric threading tool, aiming to solve the problem of inconvenient threading in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An electric threading tool comprises a housing, wherein a threading screw is fixed in the housing;

[0007] The housing comprises an upper shell and a lower shell detachably connected to the upper shell, and the upper shell is provided with an adapter for connecting to the power tool;

[0008] When the upper shell is assembled onto the lower shell, the lever is fixed between the upper shell and the lower shell;

[0009] The lower shell is provided with a correction sleeve, the correction sleeve is communicated with the screw thread, and the correction sleeve is provided with a through hole for the threaded workpiece to be threaded to pass through.

[0010] A further improved solution: the upper shell is connected to the lower shell through a clamping block and a clamping slot that cooperates with the clamping block.

[0011] Based on this technical solution, the design of the block and slot makes the connection between the upper and lower shells simple and quick. Users can easily separate the upper shell from the lower shell without using complex tools or tedious disassembly steps, making it easier to maintain and replace the internal teeth.

[0012] A further improved solution: the card block is arranged on the upper shell, and the card slot is arranged on the lower shell.

[0013] Based on the above technical solution: The corresponding relationship between the clamping block and the clamping groove is clear, enabling the user to quickly find the correct position for connection during the assembly process. This intuitive design reduces the possibility of assembly errors and improves the accuracy and speed of assembly. After the clamping block is inserted into the clamping groove, a stable connection structure can be formed to ensure that the upper shell and the lower shell will not accidentally separate during use.

[0014] Further improved solution: An extension ring extending into the lower shell is provided on the upper shell, the clamping block is arranged on the outer side wall of the extension ring, and the clamping groove is arranged on the lower shell.

[0015] Based on the above technical solution: The design of the extension ring makes the connection between the upper shell and the lower shell tighter. The clamping block is on the outer side wall of the extension ring and cooperates with the clamping groove on the lower shell to form a stable mechanical connection. This connection method can effectively resist external impacts and vibrations, improving the stability and durability of the entire structure. When subjected to external forces, the extension ring can disperse stress and reduce the direct impact on the upper shell and the lower shell. This design helps prevent component damage caused by stress concentration, thereby extending the service life.

[0016] Further improved solution: The clamping groove includes a guiding portion that penetrates the upper end surface of the lower shell, and the clamping groove further includes an inclined portion that communicates with the guiding portion and is used for positioning the clamping block.

[0017] Based on the above technical solution: The guiding portion penetrates the upper end surface of the lower shell, providing a clear path for the clamping block to enter the clamping groove. This design enables the clamping block to slide smoothly along the guiding portion during insertion, reducing the insertion difficulty caused by direction deviation or inaccurate position. The existence of the guiding portion can also reduce the direct contact and friction between the clamping block and the lower shell to a certain extent, thereby reducing wear and extending the service life of the component. The inclined portion communicates with the guiding portion, and its design enables the clamping block to be further accurately positioned after passing through the guiding portion.

[0018] Further improved solution: The shape of the clamping groove is L-shaped.

[0019] Based on the above technical solution: The design of the L-shaped clamping groove focuses on achieving quick installation and disassembly. Its simple L-shaped structure enables the clamping block to easily slide into and lock in the clamping groove, and also facilitates quick release from the clamping groove.

[0020] Further improved solution: A through hole for the calibration sleeve to pass through is provided on the lower shell, a cylinder body sleeved outside the calibration sleeve is further provided on the lower shell, a shoulder for preventing the calibration sleeve from sliding out of the lower shell is provided at the upper end of the calibration sleeve, and a step for cooperating with the shoulder is arranged inside the lower shell.

[0021] Based on the above technical solution: The through hole on the lower shell allows the calibration sleeve to pass through, providing an accurate path for the installation of the calibration sleeve. This design ensures that the calibration sleeve can be accurately aligned and inserted into the predetermined position during installation. The shoulder at the upper end of the calibration sleeve cooperates with the step inside the lower shell to form an effective limiting mechanism. This cooperation method can prevent the calibration sleeve from sliding or falling off after installation, ensuring the stability of the calibration sleeve.

[0022] Further improved solution: A positioning groove for preventing the die from rotating relative to the housing is provided on the side wall of the die, an installation groove for installing the die is provided on the upper shell, and a positioning post cooperating with the positioning groove is provided on the side wall of the installation groove.

[0023] Based on the above technical solution: The tight cooperation between the positioning groove and the positioning post ensures the precise positioning of the die in the installation groove. This design makes it impossible for the die to rotate freely relative to the housing, guaranteeing the stability and accuracy of the die during use. Through the physical engagement, the positioning groove and the positioning post effectively limit the movement freedom of the die, enhancing the connection stability between the die and the housing.

[0024] Further improved solution: A chip removal hole for discharging the chips generated during the threading process of the die is also provided on the upper shell.

[0025] Based on the above technical solution: The design of the chip removal hole enables the chips generated during the threading process to be discharged in a timely manner, avoiding the accumulation of chips in the processing area. This helps to keep the processing environment clean, reduce processing interruptions caused by chip interference, and thus improve processing efficiency.

[0026] Further improved solution: The adapter is a connecting column fixed to the upper shell, the cross-sectional shape of the connecting column is polygonal, and an internal thread is provided on the connecting column.

[0027] Based on the above technical solution: The polygonal cross-section not only increases the stability but also plays a positioning role. Since the polygon has multiple distinct sides and angles, it can ensure that the adapter can be accurately aligned when docking with other components, avoiding poor docking or damage caused by position deviation. And it can transmit a larger torque.

[0028] The beneficial effects of the present utility model are:

[0029] In this utility model, a detachable connection design is adopted between the upper shell and the lower shell, enabling users to easily separate the two, thereby facilitating the replacement of threading dies and calibration sleeves of different specifications. This design greatly simplifies the maintenance work, reduces the operation difficulty, and improves the work efficiency. By optimizing the connection structure, such as using quick-disassembly components like snap fasteners and screws, users can complete the replacement of the threading die and the calibration sleeve within a short time without the need for professional tools or complex operations.

[0030] The calibration sleeve provided on the lower shell communicates with the threading die and is equipped with a through hole for the workpiece to be threaded to pass through. The main function of the calibration sleeve is to ensure that the workpiece can maintain the correct position during the processing, reduce the processing errors caused by position deviation, and thus improve the processing accuracy. The design of the calibration sleeve enables the workpiece to be accurately aligned with the threading die, avoiding the uncertainty brought by manual position adjustment in the traditional method and ensuring the consistency and stability of the processing.

[0031] The adapter provided on the upper shell can cooperate with the power tool, enabling the power tool to drive the threading die to rotate. This design transforms the traditional manual operation into electric drive, greatly improving the work efficiency and processing speed. The design of the adapter needs to ensure good cooperation with the power tool to stably transmit the rotational power of the power tool to the threading die and ensure the smooth progress of the processing. Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of this utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a schematic diagram of the internal structure of an electric threading tool of this utility model.

[0034] Figure 2 It is a schematic diagram of an electric threading tool of this utility model.

[0035] Figure 3 It is an exploded view of an electric threading tool of this utility model.

[0036] Explanation of the Reference Numerals in the Drawings:

[0037] 1 - Upper shell; 2 - Lower shell; 3 - Threading die; 4 - Adapter; 5 - Calibration sleeve; 6 - Clamping block; 7 - Card slot; 8 - Extension ring; 9 - Shoulder; 10 - Cylinder; 11 - Positioning groove; 12 - Chip removal hole. Detailed Embodiment

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0039] Reference Figures 1 to 3 , an electric threading tool, comprising a housing, wherein a die 3 is fixed in the housing;

[0040] The housing includes an upper housing 1 and a lower housing 2 detachably connected to the upper housing 1, and a adapter 4 for connecting an electric tool is provided on the upper housing 1;

[0041] When the upper housing 1 is assembled to the lower housing 2, the die 3 is fixed between the upper housing 1 and the lower housing 2;

[0042] A calibration sleeve 5 is provided on the lower housing 2, the calibration sleeve 5 communicates with the die 3, and a through hole for the workpiece to be threaded to pass through is provided on the calibration sleeve 5.

[0043] Specifically: The upper housing 1 is snap-connected to the lower housing 2 through a clamping block 6 and a clamping groove 7 cooperating with the clamping block 6.

[0044] The clamping block 6 is provided on the upper housing 1, and the clamping groove 7 is provided on the lower housing 2. The clamping block 6 can also be installed on the lower housing 2, and the clamping groove 7 can be provided on the upper housing 1.

[0045] When the clamping block 6 is installed on the upper housing 1, the clamping block 6 and the upper housing 1 can be of an integral structure.

[0046] Among them: An extension ring 8 extending into the lower housing 2 is provided on the upper housing 1, the clamping block 6 is provided on the outer side wall of the extension ring 8, and the clamping groove 7 is provided on the lower housing 2.

[0047] Reference Figures 1 to 3 , the clamping groove 7 includes a guiding portion penetrating through the upper end surface of the lower housing 2, and the clamping groove 7 further includes an inclined portion communicating with the guiding portion and used for positioning the clamping block 6. The shape of the clamping groove 7 is L-shaped.

[0048] The extension ring 8 can be of an integral structure with the upper housing 1.

[0049] Specifically: A through hole for the calibration sleeve 5 to pass through is provided on the lower housing 2, a cylinder 10 sleeved outside the calibration sleeve 5 is further provided on the lower housing 2, a shoulder 9 for preventing the calibration sleeve 5 from sliding out of the lower housing 2 is provided at the upper end of the calibration sleeve 5, and a step cooperating with the shoulder 9 is provided inside the lower housing 2.

[0050] The calibration sleeve 5 and the shoulder 9 are of an integral structure.

[0051] Specifically, a positioning groove 11 for preventing the die 3 from rotating relative to the housing is provided on the side wall of the die 3. An installation groove for installing the die 3 is provided on the upper housing 1, and a positioning post that cooperates with the positioning groove 11 is provided on the side wall of the installation groove. The positioning post and the upper housing 1 are of an integral structure.

[0052] Among them, a chip discharge hole 12 for discharging the chips generated during the threading process of the die 3 is further provided on the upper housing 1.

[0053] Specifically, the adapter 4 is a connecting column fixed to the upper housing 1. The cross-sectional shape of the connecting column is polygonal, and an internal thread is provided on the connecting column.

[0054] The adapter 4 can also be a connector in other forms.

[0055] The working principle of this embodiment:

[0056] The user first connects a power tool (such as a drill, a motor, etc.) to the adapter 4 on the upper housing 1. The adapter 4 serves as a connecting bridge to transmit the rotational power of the power tool to the die 3.

[0057] When the power tool is started, its rotational power acts on the die 3 through the adapter 4, causing the die 3 to start rotating.

[0058] The workpiece to be threaded is inserted into the calibration sleeve 5 and enters the processing area of the die 3 through the through hole. The design of the calibration sleeve 5 ensures that the workpiece can maintain the correct position during the processing, improving the position accuracy of the workpiece relative to the die 3.

[0059] As the die 3 rotates, threading processing of the workpiece begins. Since the die 3 is fixed between the upper housing 1 and the lower housing 2, a stable processing state can be maintained. During the processing, the calibration sleeve 5 continuously maintains the position accuracy of the workpiece to ensure that the threaded portion processed meets the requirements.

[0060] During the threading process, the generated chips may be discharged through the chip discharge hole 12 on the housing to keep the processing area clean. The design of the chip discharge hole 12 helps to reduce the interference of the chips on the processing process, improving the processing efficiency and quality.

[0061] The present utility model is not limited to the above-mentioned optional embodiments. On the premise of non-conflict, various schemes can be arbitrarily combined; anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical scheme falls within the scope defined by the claims of the present utility model, it falls within the protection scope of the present utility model.

Claims

1. An electric threading tool, characterized in that: It includes a housing, in which a die is fixed. The housing includes an upper housing and a lower housing detachably connected to the upper housing, and a adapter for connecting to a power tool is provided on the upper housing. When the upper housing is assembled to the lower housing, the die is fixed between the upper housing and the lower housing. A calibration sleeve is provided on the lower housing, the calibration sleeve communicates with the die, and a through hole for the workpiece to be threaded is provided on the calibration sleeve.

2. The electric threading tool according to claim 1, characterized in that: The upper housing is snap-fitted to the lower housing through a snap block and a slot cooperating with the snap block.

3. The electric threading tool according to claim 2, characterized in that: The snap block is provided on the upper housing, and the slot is provided on the lower housing.

4. The electric threading tool according to claim 3, characterized in that: An extension ring extending into the lower housing is provided on the upper housing, the snap block is provided on the outer sidewall of the extension ring, and the slot is provided on the lower housing.

5. The electric threading tool according to claim 4, wherein: The slot includes a guiding portion penetrating the upper end surface of the lower housing, and the slot further includes an inclined portion communicating with the guiding portion and used for positioning the snap block.

6. The electric threading tool according to claim 5, characterized in that: The shape of the slot is L-shaped.

7. An electric threading tool according to claim 1, characterized in that: A through hole for the calibration sleeve to pass through is provided on the lower housing, a cylinder sleeving the calibration sleeve is further provided on the lower housing, a shoulder for preventing the calibration sleeve from sliding out of the lower housing is provided at the upper end of the calibration sleeve, and a step cooperating with the shoulder is provided in the lower housing.

8. An electric threading tool according to claim 1, characterized in that: A positioning groove for preventing the die from rotating relative to the housing is provided on the sidewall of the die, an installation groove for installing the die is provided on the upper housing, and a positioning post cooperating with the positioning groove is provided on the sidewall of the installation groove.

9. The electric threading tool according to claim 1, characterized in that: A chip removal hole for discharging the chips generated during the threading process of the die is further provided on the upper housing.

10. An electric threading tool according to any one of claims 1 to 9, characterized in that: The adapter is a connecting column fixed to the upper housing, the cross-sectional shape of the connecting column is polygonal, and an internal thread is provided on the connecting column.

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