High-reliability composite screw tap

Abstract

The utility model provides a high-reliability composite screw tap. The high-reliability composite screw tap comprises a screw tap rod, a thread screw tap head is arranged at the front end of the screw tap rod, an installation handle is arranged at the tail end of the screw tap rod, the section of the screw tap rod is round, the section of the installation handle is rectangular, and a rectangular positioning hole is formed in the installation handle. According to the high-reliability composite screw tap provided by the utility model, the mounting handle at the tail end of the screw tap rod is used for being mounted on driving equipment, when the rectangular positioning hole in the mounting handle is mounted, the stability of connection with the driving equipment can be improved, the reliability of the screw tap is improved, the initial position of the thread screw tap head can be ensured to be determined during drilling, and the service life of the screw tap is prolonged. And the drilling quality of the screw tap is improved.

Description

Technical Field

[0001] This utility model belongs to the field of tap technology, specifically relating to a high-reliability composite tap. Background Technology

[0002] A tap is a tool used to machine internal threads. According to its shape, it can be divided into spiral flute taps, angled taps, straight flute taps, and pipe thread taps, etc. Taps are installed inside a drive unit, and during operation, their rotation is not stable enough, resulting in poor reliability. Utility Model Content

[0003] The main purpose of this invention is to provide a high-reliability composite tap, which improves the reliability of the tap.

[0004] To achieve the above objectives, this utility model provides a high-reliability composite tap, which includes a tap rod, a threaded tap head at the front end of the tap rod, and an installation handle at the end of the tap rod. The tap rod has a circular cross-section, the installation handle has a rectangular cross-section, and a rectangular positioning hole is provided inside the installation handle.

[0005] The high-reliability composite tap provided by this utility model has a mounting shank at the end of the tap rod for mounting onto a drive device. The rectangular positioning hole inside the mounting shank can improve the connection stability with the drive device during installation, thereby improving the reliability of the tap and ensuring that the initial position of the threaded tap head is determined during drilling, thus improving the quality of tap drilling.

[0006] In one possible implementation, the length of the two vertical sides of the rectangular positioning hole is not less than the length of the two horizontal sides of the rectangular positioning hole.

[0007] In one possible implementation, four rectangular protrusions are symmetrically arranged on the inner walls of both sides of the rectangular positioning hole. This design enhances the connection stability between the positioning hole and the external mating components, and plays a guiding and limiting role during installation, thereby improving the reliability and performance of the tap.

[0008] In one possible implementation, the front end of the tap shank is provided with four recessed grooves, the bottom surface of which is an arc-shaped surface. These four grooves evenly divide the thread tap head into four parts. This design optimizes cutting performance, resulting in a more uniform distribution of cutting force, reducing vibration and stress concentration during the cutting process, thereby improving the tap's service life and machining accuracy.

[0009] In one possible implementation, the length of the recess is greater than the length of the threaded tap. A longer recess may help to better distribute cutting forces or accommodate more chips during cutting, thereby preventing chip clogging, ensuring smooth tap operation, and further improving its reliability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a high-reliability composite tap structure provided by this utility model. Detailed Implementation

[0011] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0012] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0013] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0014] See attached diagram. Figure 1 , Figure 1 This is a schematic diagram of a high-reliability composite tap structure provided by this utility model, as shown below. Figure 1 As shown, the high-reliability composite tap provided by this utility model includes a tap rod 1, a threaded tap head 2 at the front end of the tap rod 1, and an installation handle 3 at the end of the tap rod 1. The tap rod 1 has a circular cross-section, the installation handle 3 has a rectangular cross-section, and a rectangular positioning hole 4 is provided inside the installation handle 3.

[0015] The high-reliability composite tap provided by this utility model has a mounting handle 3 at the end of the tap rod 1 for mounting to a drive device. The rectangular positioning hole 4 in the mounting handle 3 can improve the connection stability with the drive device during installation, thus improving the reliability of the tap. It can also ensure that the initial position of the thread tap head 2 is determined during drilling, thereby improving the quality of tap drilling.

[0016] In one possible implementation, the length of the two vertical sides of the rectangular positioning hole 4 is not less than the length of the two horizontal sides of the rectangular positioning hole 4.

[0017] In one possible implementation, four rectangular protrusions 5 are symmetrically arranged on the inner walls of both sides of the rectangular positioning hole 4. This design enhances the connection stability between the positioning hole and the external mating components, and plays a certain guiding and limiting role during installation, thereby improving the reliability and performance of the tap.

[0018] In one possible implementation, the front end of the tap rod 1 is provided with four recessed grooves 6, the bottom surface of which is an arc-shaped surface. The four recessed grooves 6 evenly divide the thread tap head 2 into four parts. This solution optimizes cutting performance, makes the cutting force distribution more uniform, reduces vibration and stress concentration during the cutting process, and thus improves the service life and machining accuracy of the tap.

[0019] In one possible implementation, the length of the recessed groove 6 is greater than the length of the threaded tap 2. A longer recessed groove 6 may help to better distribute cutting forces or accommodate more chips during cutting, thereby preventing chip clogging, ensuring smooth tap operation, and further improving its reliability.

[0020] It is worth mentioning that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-reliability composite tap, characterized in that, The device includes a tap rod, with a threaded tap head at the front end and an installation handle at the end. The tap rod has a circular cross-section, and the installation handle has a rectangular cross-section. A rectangular positioning hole is provided inside the installation handle.

2. The high-reliability composite tap according to claim 1, characterized in that, The length of the two vertical sides of the rectangular positioning hole is not less than the length of the two horizontal sides of the rectangular positioning hole.

3. The high-reliability composite tap according to claim 2, characterized in that, Four rectangular protrusions are symmetrically arranged on the inner walls of both sides of the rectangular positioning hole.

4. The high-reliability composite tap according to claim 3, characterized in that, The front end of the tap rod is provided with four recessed grooves, the bottom surface of the recessed grooves is an arc-shaped surface, and the four recessed grooves evenly divide the threaded tap head into four parts.

5. The high-reliability composite tap according to claim 4, characterized in that, The length of the recessed groove is greater than the length of the threaded tap.

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