Novel indexable disposable screw tap

Abstract

The utility model discloses a novel indexable disposable screw tap in the technical field of screw taps, which comprises a transmission steel handle, one end of the transmission steel handle is provided with a thread cutting head, a fixing component is connected between the thread cutting head and the transmission steel handle, one end of the transmission steel handle is provided with a first connector, and the other end of the transmission steel handle is provided with a second connector. According to the scheme, a flow guide through hole and a flow guide groove are additionally formed in the outer side of the supporting rod, a flow guide channel penetrates through the middle of the transmission steel handle, the middle of the first connector and the middle of the supporting rod, the flow guide channel communicates with the flow guide through hole, the flow guide channel is communicated with the flow guide through hole, and the flow guide channel is communicated with the flow guide through hole; when the thread cutting head is used for cutting a metal piece, cooling liquid can be conveyed to the position over the thread cutting head through the flow guide channel and the flow guide through hole, the thread cutting head rotating at a high speed is cooled, metal chippings generated in the cutting process are cleaned, and therefore it is guaranteed that the screw tap has the good chip removal effect and the cleanliness of thread machining.

Description

Technical Field

[0001] The utility model relates to the technical field of taps, in particular to a novel indexable and disposable tap. Background Art

[0002] A tap is a precision tool used for cutting internal threads and is widely used in machining and manufacturing. Its working principle is to cut the material with its thread-shaped blade to form threads in the hole. Taps are generally divided into hand taps and machine taps. Hand taps can cut threads through manual operation, while machine taps are used on machine tools with power equipment to achieve efficient processing. Tap materials are usually made of high-hardness, high-wear-resistant steel, which can meet the processing needs of different materials. Common types of taps include straight-groove taps, spiral-groove taps, and spiral-point taps, each with different chip removal capabilities and application ranges, and can achieve high-precision thread cutting in a variety of processing scenarios.

[0003] At present, when using existing taps, their thread cutting head and transmission steel shank usually adopt an injection-molded integrated structural design. Although this design has a high degree of integrity, since the thread cutting head and the steel shank are molded in one piece, it is difficult to conveniently install or disassemble the thread cutting head according to the wear condition in actual use. At the same time, the taps with an integrated structural design are limited in operation when it is necessary to replace the thread cutting head of different specifications, and cannot flexibly adapt to various processing requirements. Therefore, to a certain extent, it affects the application and use efficiency of the taps in diversified processing scenarios.

[0004] Based on this, we propose a new type of indexable disposable tap to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present utility model is to provide a new type of indexable disposable tap, which can solve the problem that the existing one-piece tap is difficult to conveniently replace the thread cutting head during use and difficult to adapt to the processing requirements of multiple specifications, thereby limiting its application in diversified processing scenarios.

[0007] To solve the above technical problems, the present invention provides a novel indexable disposable tap, which adopts the following technical solution: comprising a transmission steel shank, a thread cutting head mounted on one end of the transmission steel shank, a fixing assembly connected between the thread cutting head and the transmission steel shank, a first connector mounted on one end of the transmission steel shank, a support rod mounted on the end of the transmission steel shank away from the first connector, and a second connector mounted on the end of the transmission steel shank close to the support rod;

[0008] A hidden groove is formed at one end of the thread cutting head, and a first fixing screw hole is formed inside the hidden groove.

[0009] Optionally, the fixing assembly includes a connecting screw head, which matches the hidden groove structure, and one side of the connecting screw head is connected to a fixing screw.

[0010] Optionally, a plurality of groups of flow guide holes distributed in a circumferential array are provided on the outer side of the support rod, and a drainage groove is further provided on the outer side of the support rod close to the flow guide holes.

[0011] Optionally, a second fixing screw hole is provided in the middle of the second connecting head, and the second fixing screw hole has the same structure as the first fixing screw hole. The second fixing screw hole, the first fixing screw hole and the fixing screw rod are threadedly matched, and the second connecting head is also provided with several groups of positioning slots distributed in a circular array around the second fixing screw hole.

[0012] Optionally, a plurality of groups of positioning blocks distributed in a circumferential array are provided around one side of the thread cutting head away from the hidden groove, and the positioning blocks match the positioning slot structure, and the positioning blocks and the positioning slot are plug-fitted.

[0013] Optionally, a guide channel is provided through the transmission steel handle, the first connecting head and the middle portion of the support rod, and the guide channel is connected to the guide flow hole.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. The tap of this design consists of three parts: a transmission steel shank, a thread cutting head, and a fixing assembly. The thread cutting head is plugged into and matched with the positioning plug blocks around the thread cutting head through a positioning slot around one end of the second connecting head. Since the structure of the plug blocks matches the slots, the thread cutting head can be firmly connected to one end of the transmission steel shank. The transmission steel shank utilizes the thread matching structure of the first fixing screw hole, the second fixing screw hole, and the fixing screw, and the fixing assembly can firmly limit the thread cutting head to one end of the transmission steel shank. Through the above-mentioned structural design, the transmission steel shank can easily install or remove the thread cutting head without replacing the entire tool, and cutting heads of different specifications can be replaced as needed, thereby improving the flexibility of the tap.

[0016] 2. This solution adds guide holes and drainage grooves on the outside of the support rod, and penetrates a guide channel between the transmission steel handle, the first connector, and the support rod. The guide channel is connected to the guide holes. When the thread cutting head is used for cutting metal parts, the coolant can be transported to the top of the thread cutting head through the guide channel and the guide holes to cool the high-speed rotating thread cutting head and clean the metal debris generated during the cutting process, so as to ensure that the tap has a good chip removal effect and the cleanliness of the thread processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the disassembly of the thread cutting head of the utility model;

[0020] Figure 3 This is a schematic diagram of the hidden groove structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the transmission steel handle structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the positioning plug structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the guide channel structure of the present utility model.

[0024] Explanation of the accompanying drawings: 1. Transmission steel handle; 2. Thread cutting head; 3. Fixing assembly; 4. First connecting head; 5. Support rod; 6. Second connecting head; 7. Hidden groove; 8. First fixing screw hole; 9. Connecting screw head; 10. Fixing screw; 11. Diversion hole; 12. Drainage groove; 13. Second fixing screw hole; 14. Positioning slot; 15. Positioning plug; 16. Diversion channel. DETAILED DESCRIPTION

[0025] 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.

[0026] Example: Refer to Figures 1 to 6 The utility model provides an embodiment of a new type of indexable disposable tap, including a transmission steel handle 1, a thread cutting head 2 is installed at one end of the transmission steel handle 1, and a fixing component 3 is connected between the thread cutting head 2 and the transmission steel handle 1, a first connecting head 4 is provided at one end of the transmission steel handle 1, a support rod 5 is installed at the end of the transmission steel handle 1 away from the first connecting head 4, and a second connecting head 6 is provided at the end of the transmission steel handle 1 close to the support rod 5. A hidden groove 7 is provided at one end of the thread cutting head 2, and a first fixing screw hole 8 is provided inside the hidden groove 7. The transmission steel handle 1 can be conveniently installed or disassembled according to the wear condition of the thread cutting head 2 without replacing the entire cutting tool. At the same time, thread cutting heads 2 of different specifications can be replaced according to usage needs, thereby improving the flexibility of the tap when in use.

[0027] The fixing component 3 includes a connecting screw head 9, which matches the structure of the hidden groove 7. A fixing screw 10 is connected to one side of the connecting screw head 9. Through the structural design that matches the structure of the hidden groove 7, when the three groups of transmission steel handle 1, thread cutting head 2, and fixing component 3 are connected, the hidden groove 7 can store and hide the connecting screw head 9 at one end of the fixing screw 10. Several groups of guide holes 11 distributed in a circumferential array are provided on the outside of the support rod 5. A drainage groove 12 is also provided on the outside of the support rod 5 near the guide hole 11. The coolant can be transported to the top of the thread cutting head 2 through the guide hole 11 and the drainage groove 12 opened on the outside of the support rod 5.

[0028] A second fixing screw hole 13 is provided in the middle of the second connecting head 6. The second fixing screw hole 13 has the same structure as the first fixing screw hole 8. The second fixing screw hole 13, the first fixing screw hole 8 and the fixing screw 10 are threadedly matched. The second connecting head 6 is also provided with several groups of positioning slots 14 distributed in a circumferential array around the second fixing screw hole 13. Through the structural design of the threaded matching between the second fixing screw hole 13, the first fixing screw hole 8 and the fixing screw 10, the thread cutting head 2 can be firmly limited to one end of the transmission steel handle 1. Several groups of positioning plugs 15 distributed in a circumferential array are provided around the side of the thread cutting head 2 away from the hidden groove 7. The positioning plug 15 matches the positioning slot 14 structure, and the positioning plug 15 and the positioning slot 14 are plug-fitted. Through the structural design of the plug-fitting between the positioning plug 15 and the positioning slot 14, the thread cutting head 2 can be inserted and connected to one end of the transmission steel handle 1.

[0029] A guide channel 16 is opened through the middle of the transmission steel handle 1, the first connecting head 4, and the support rod 5, and the guide channel 16 and the guide flow hole 11 are connected through. Through the guide channel 16 opened through the middle of the transmission steel handle 1, the first connecting head 4, and the support rod 5, and the guide channel 16 and the guide flow hole 11 are connected through, when the thread cutting head 2 cuts the metal part, the coolant can be transported to the top of the thread cutting head 2 through the guide channel 16 and the guide flow hole 11, which can quickly cool the thread cutting head 2 in high-speed rotating cutting operation, and can also flush and clean the metal debris generated by the cutting operation.

[0030] Working principle: The tap designed in this scheme mainly consists of three parts: a transmission steel handle 1, a thread cutting head 2 and a fixing component 3. The thread cutting head 2 is connected to one end of the transmission steel handle 1 through a positioning slot 14 opened around one end of the second connecting head 6 and a positioning plug 15 installed around one end of the thread cutting head 2. Because the positioning plug 15 matches the structure of the positioning slot 14, and the positioning plug 15 and the positioning slot 14 are plug-fitted, the thread cutting head 2 can be inserted and connected to one end of the transmission steel handle 1. The transmission steel handle 1 is matched with the first fixing screw hole 8, the second fixing screw hole 13, and the fixing screw 10. The thread cutting head 2 limited to one end of the transmission steel handle 1 can also be fixed by the fixing component 3. From the above, it can be seen that the tap designed in this scheme, the transmission steel handle 1 can be conveniently installed or disassembled according to the wear condition of the thread cutting head 2, without replacing the entire cutting tool. At the same time, thread cutting heads 2 of different specifications can be replaced according to usage needs, thereby improving the flexibility of the tap when in use.

[0031] This solution uses the guide hole 11 and the drainage groove 12 opened on the outside of the support rod 5, and the guide channel 16 opened through the transmission steel handle 1, the first connecting head 4, and the middle part of the support rod 5. Since the guide channel 16 and the guide hole 11 are through-connected, when the thread cutting head 2 cuts the metal part, the circulating coolant is transported to the top of the thread cutting head 2 through the guide channel 16 and the guide hole 11. While quickly cooling the thread cutting head 2 in the high-speed rotating cutting operation, the metal debris generated by the cutting operation can also be flushed and cleaned, thereby ensuring the best chip removal effect and thread cleaning of the tap.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel indexable disposable tap, comprising a transmission steel shank (1), characterized in that: A thread cutting head (2) is mounted on one end of the transmission steel handle (1), a fixing assembly (3) is further connected between the thread cutting head (2) and the transmission steel handle (1), a first connector (4) is provided on one end of the transmission steel handle (1), a support rod (5) is mounted on the end of the transmission steel handle (1) away from the first connector (4), and a second connector (6) is further provided on the end of the transmission steel handle (1) close to the support rod (5); A hidden groove (7) is provided at one end of the thread cutting head (2), and a first fixing screw hole (8) is provided through the interior of the hidden groove (7).

2. The novel indexable disposable tap according to claim 1, characterized in that: The fixing assembly (3) comprises a connecting screw head (9), the connecting screw head (9) matches the structure of the hidden groove (7), and one side of the connecting screw head (9) is connected to a fixing screw rod (10).

3. The novel indexable disposable tap according to claim 2, characterized in that: The outer side of the support rod (5) is provided with a plurality of groups of flow guide holes (11) distributed in a circumferential array, and the outer side of the support rod (5) close to the flow guide holes (11) is also provided with a drainage groove (12).

4. The novel indexable disposable tap according to claim 3, characterized in that: A second fixing screw hole (13) is provided in the middle of the second connecting head (6). The second fixing screw hole (13) has the same structure as the first fixing screw hole (8). The second fixing screw hole (13), the first fixing screw hole (8) and the fixing screw rod (10) are threadedly matched. The second connecting head (6) is also provided with a plurality of positioning slots (14) distributed in a circumferential array around the periphery near the second fixing screw hole (13).

5. The novel indexable disposable tap according to claim 4, characterized in that: A plurality of groups of positioning inserts (15) distributed in a circumferential array are provided around one side of the thread cutting head (2) away from the hidden groove (7); the positioning inserts (15) match the structure of the positioning slots (14); and the positioning inserts (15) and the positioning slots (14) are plug-fitted.

6. The novel indexable disposable tap according to claim 1, characterized in that: A flow guide channel (16) is provided through the middle of the transmission steel handle (1), the first connector (4), and the support rod (5), and the flow guide channel (16) is connected to the flow guide hole (11).

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