Tool for tapping

Abstract

The tool comprises a tapping part, a connecting part and an installing part which are sequentially connected in the axial direction, the tapping part comprises a tapping head, one end of the tapping head is fixedly connected with a drill bit, three sets of chip containing grooves are formed in the outer portion of the tapping head at intervals, a groove back is formed in the outer portion of one side of each chip containing groove, and a groove is formed in the outer portion of the other side of each chip containing groove. Three jumping tooth sets are arranged outside the tapping head at intervals, three thread sets are arranged outside the drill bit at intervals, and three chip grooves are formed outside the drill bit at intervals. Due to the design of the groove backs and the chip accommodating grooves, the cutter has a larger chip accommodating space, the reverse torque of the cutter can be reduced, meanwhile, the distance between a plurality of groups of staggered teeth and jumping teeth is one time that between a plurality of groups of threads, when the cutter works, chip removal is smoother, and the torque can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a tool for tapping. Background Art

[0002] In current technology, tapping refers to the process of producing internal threads by screwing a tap into a desired hole with a specified torque. Choosing the right lubricant is crucial for tapping. Tapping tools, also known as taps, are tools used to produce internal threads. There are many different types of tapping tools to meet different needs, and they are the primary tool used by manufacturing operators to produce internal threads.

[0003] The Chinese patent application number CN202322660703.4 discloses a tool for tapping long holes, including: a bracket assembly and a tapping assembly, the tapping assembly including a tap head, a connecting column and a transmission column, the top end of the tap head is fixedly connected to the connecting column, the top end of the connecting column is fixedly connected to the transmission column, and the top end of the transmission column is fixedly connected to an oil inlet pipe, which extracts debris from the inside of the long hole through an air guide fan, a negative pressure pipe and a chip extraction pipe to avoid the debris from corresponding inside the long hole, so that the heat generated by tapping accumulates inside the long hole, affecting the tapping quality; at the same time, lubricating oil is introduced into the long hole in conjunction with through hole one, through hole two, through hole three and the oil inlet pipe, so that the lubricating oil fully covers the inner wall of the long hole, improves the lubrication and heat dissipation effects, and facilitates tap processing.

[0004] The above patent has the following deficiencies: the tool discharges materials only through the chip groove, which makes the chip discharge of the device insufficiently smooth, and the chip groove has insufficient chip holding space, thereby affecting the reverse torque of the tool. Utility Model Content

[0005] The purpose of the utility model is to provide a tool for tapping, comprising a tapping part, a connecting part and a mounting part connected in sequence along the axial direction, the tapping part comprises a tapping head, one end of the tapping head is fixedly connected to a drill bit, three groups of chip grooves are spaced apart on the outside of the tapping head, a groove back is provided on the outside of one side of the chip groove, three groups of skipping tooth groups are spaced apart on the outside of the tapping head, three groups of screw thread groups are spaced apart on the outside of the drill bit, and three groups of chip removal grooves are spaced apart on the outside of the drill bit.

[0006] As a preference of this embodiment, the tapping portion, the connecting portion and the mounting portion are integrally formed and coaxially arranged.

[0007] As a preferred embodiment of this embodiment, the three groups of chip grooves are respectively adjacent to the three groups of staggered tooth jumps on one side away from the groove back, and the side of the chip groove away from the groove back smoothly transitions to the side of the staggered tooth jumps, the chip groove is connected to the chip removal groove, and the side of the groove back away from the chip groove is adjacent to the other side of the staggered tooth jumps.

[0008] As a preference of this embodiment, the skipping tooth group is specifically several groups of staggered skipping teeth arranged at intervals, the screw thread group is specifically several groups of screw threads arranged at intervals, and the spacing between the several groups of staggered skipping teeth is specifically twice the spacing between the several groups of screw threads.

[0009] As a preference of this embodiment, the groove back extends to the drill bit, and the screw thread extends to the outside of the tapping head.

[0010] Through the above technical solution, the beneficial effects of the utility model are:

[0011] The utility model provides a larger chip space for the tool through the design of the groove back and the chip groove, which can effectively reduce the reverse torque of the tool. At the same time, the spacing between several groups of staggered teeth is twice the spacing between several groups of thread teeth, which makes the chip removal smoother during operation and can reduce the torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a tool for tapping in the present utility model;

[0013] Figure 2 This is a schematic structural diagram of the tapping part of the utility model;

[0014] Figure 3 This is a front structural diagram of the tapping part of the present invention.

[0015] In the figure: 1 tapping part, 11 tapping head, 12 groove back, 13 chip groove, 14 staggered tooth, 15 thread, 16 drill bit, 17 chip groove, 2 connecting part, 3 mounting part. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3 As shown, the utility model provides a tool for tapping, including a tapping part 1, a connecting part 2 and a mounting part 3 connected in sequence along the axial direction, the tapping part 1 includes a tapping head 11, one end of the tapping head 11 is fixedly connected to a drill bit 16, three groups of chip grooves 13 are spaced apart on the outside of the tapping head 11, a groove back 12 is provided on one side of the chip groove 13, three groups of skipping tooth groups are spaced apart on the outside of the tapping head 11, three groups of screw thread groups are spaced apart on the outside of the drill bit 16, and three groups of chip removal grooves 17 are spaced apart on the outside of the drill bit 16.

[0018] Specifically, the design of the groove back 12 and the chip groove 13 allows the tool to have a larger chip space, which can effectively reduce the reverse torque of the tool.

[0019] Furthermore, the tapping portion 1, the connecting portion 2 and the mounting portion 3 are integrally formed and coaxially arranged.

[0020] It should be noted that the tapping tool is made of cemented carbide material.

[0021] Furthermore, the three groups of chip grooves 13 are respectively adjacent to the three groups of staggered teeth 14 on one side away from the groove back 12, and the chip groove 13 smoothly transitions to the side of the staggered teeth 14 on the one side away from the groove back 12. The chip groove 13 is connected to the chip removal groove 17, and the groove back 12 is adjacent to the other side of the staggered teeth 14 on the one side away from the chip groove 13.

[0022] Furthermore, the skipping teeth group specifically comprises a plurality of groups of staggered skipping teeth 14 arranged at intervals, the screw thread group specifically comprises a plurality of groups of screw threads 15 arranged at intervals, and the spacing between the plurality of groups of staggered skipping teeth 14 is specifically twice the spacing between the plurality of groups of screw threads 15.

[0023] Furthermore, the groove back 12 extends to the drill bit 16 , and the screw thread 15 extends to the outside of the tapping head 11 .

[0024] Specifically, by setting the skipping group, the chip removal of the tool is smoother during operation and the torque can be reduced.

[0025] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool for tapping, characterized in that: The invention comprises a tapping portion (1), a connecting portion (2) and a mounting portion (3) connected in sequence along the axial direction, wherein the tapping portion (1) comprises a tapping head (11), one end of the tapping head (11) is fixedly connected to a drill bit (16), three groups of chip grooves (13) are arranged at intervals on the outside of the tapping head (11), a groove back (12) is arranged at one side of the chip groove (13), three groups of staggered teeth (14) are arranged at intervals on the outside of the tapping head (11), three groups of thread groups are arranged at intervals on the outside of the drill bit (16), and three groups of chip removal grooves (17) are arranged at intervals on the outside of the drill bit (16).

2. A tapping tool according to claim 1, characterized in that: The tapping portion (1), the connecting portion (2) and the mounting portion (3) are integrally formed and coaxially arranged.

3. The tapping tool according to claim 1, characterized in that: The three groups of chip grooves (13) are respectively adjacent to the three groups of staggered teeth (14) on one side away from the groove back (12), and the chip groove (13) is smoothly transitioned to the side of the staggered teeth (14) on the one side away from the groove back (12). The chip groove (13) is connected to the chip discharge groove (17), and the groove back (12) is adjacent to the other side of the staggered teeth (14) on the one side away from the chip groove (13).

4. The tapping tool according to claim 1, characterized in that: The skipping teeth group is specifically a plurality of groups of staggered skipping teeth (14) arranged at intervals, and the screw thread group is specifically a plurality of groups of screw threads (15) arranged at intervals, and the spacing between the plurality of groups of staggered skipping teeth (14) is specifically twice the spacing between the plurality of groups of screw threads (15).

5. The tapping tool according to claim 1, characterized in that: The groove back (12) extends to the drill bit (16), and the screw thread (15) extends to the outside of the tapping head (11).

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