TWM473882U - Blade replaceable screw tap - Google Patents

Description

Replaceable blade tap

The utility model relates to a screw tap for a replaceable blade, which is a screw tap which can replace a blade of various specifications.

Screw tapping is common in the processing industry. It is used to machine screw holes and is an indispensable machining tool. The prior art screw tapping is a one-piece structure, and the blade thread portion is directly formed on the cutter body, but the same hole screw The tapping teeth of the tapping tool are divided into two types: straight type and oblique type. The pitch specifications of the thread are also divided into metric, imperial and American. Therefore, in order to meet the processing of screw holes of different specifications, it is necessary to spare a variety of screws. This increases the procurement cost of the screw tap. In addition, the screw holes are often processed on hard materials such as steel plates. When the tapping is in the process of machining, the blade is prone to chipping. When the blade is damaged, it needs to be replaced. The group taps the tool, which increases the cost of replacement and also wastes resources.

In view of the foregoing shortcomings of the prior art, the present invention improves the prior art screw tapping for the purpose of facilitating replacement and cost reduction.

In order to achieve the above new object, the technical means adopted by the present invention is to design a screw tap for a replaceable blade, comprising: a clamping body having a first clamping piece, a second clamping piece, and an accommodation a first connecting piece and a second clamping piece respectively extending and forming The clamping body is formed between the first clamping piece and the second clamping piece, and the splicing portion is disposed between the first clamping piece and the second clamping piece and has a tip; The detachable blade is disposed in the accommodating area of the clamping body, the detachable blade has a blade portion and a merging portion formed on both side edges of the detachable blade, and the merging portion is disposed in the detachable type a splicing portion of the detachable blade is fitted to the splicing portion of the clamping body and has a tip portion, and the tip portion of the merging portion corresponds to the tip portion of the splicing portion and is fitted; A fixing member is fixedly disposed in the first clamping piece, the second clamping piece and the detachable blade.

The utility model has the advantages that the detachable blade is disposed in the clamping body and the fitting of the splicing portion and the tip portion of the splicing portion is used to fix the orientation of the detachable blade, and only when the screw holes of different specifications are processed It can be processed by replacing the blade of the corresponding specification. The clamping body can be matched with a variety of blades. When the blade is damaged, it can be reused only by replacing the blade. This is convenient and effective in reducing the processing. Change the cost.

10‧‧‧Clamping body

10A‧‧‧Clamping body

11‧‧‧First clamping piece

111‧‧‧Perforation

12‧‧‧Second clamp

121‧‧‧ screw holes

13‧‧‧Receiving area

14‧‧‧Extension block

14A‧‧‧Extension block

15‧‧‧ Groove

15A‧‧‧Flange

16‧‧‧ gap

20‧‧‧Removable blade

20A‧‧‧Removable blade

21‧‧‧ cutting edge

22‧‧‧Lighting blade

23‧‧‧Perforation

24‧‧‧Flange

24A‧‧‧ Groove

30‧‧‧Fixed parts

Figure 1 is a perspective view showing the appearance of the present invention.

Figure 2 is an exploded view of the part of the present invention.

Figure 3 is a side cross-sectional view of the present invention.

Figure 4 is an exploded view of the preferred embodiment of the present invention.

Figure 5 is an exploded view of another preferred embodiment of the present invention.

The following together with the drawings and the preferred embodiment of the present invention, further Explain the technical means adopted by this new model to achieve the intended new purpose.

Referring to FIG. 1 , the present invention comprises a clamping body 10 , a detachable blade 20 and a fixing member 30 .

Referring to FIG. 2 and FIG. 3 , the clamping body 10 is a steel structure, and has a first clamping piece 11 , a second clamping piece 12 , a receiving area 13 and a connecting portion. The first clamping piece 11 and the second clamping piece 12 are respectively formed on one end wall surface of the clamping body 10. The first clamping piece 11 is formed with a through hole 111, and the second clamping piece is formed with a screw hole 121. The through hole 111 corresponds to the opening position of the screw hole 121. The accommodating portion 13 is disposed between the first clamping piece 11 and the second clamping piece 12, and the splicing portion includes a tip portion. In the preferred embodiment, the 崁The connecting portion includes an extending block 14 and a groove 15. The extending block 14 engages the inner wall surface of the first clamping piece 11 and the second clamping piece 12 and is located at the end of the accommodating area 13, as shown in FIG. The groove 15 is concavely formed on the wall surface of the extension block 14. The groove 15 has two oblique side walls and the tip portion is formed at the center of the bottom end of the groove 15. In the preferred embodiment, the clamping body 10 is further provided. There is a gap 16 through which the gap 16 is formed between the first clamping piece 11 and the extending block 14; in another preferred embodiment, as shown in FIG. 5, the clamping body 10A is A portion comprising a flange extending blocks 14A and 15A, flange 15A formed at the protruding block extending wall surface 14A of the flange 15A has two inclined side walls and the tip portion formed at the top center of the flange 15A.

Referring to FIG. 2 and FIG. 4, the detachable blade 20 is clamped in the accommodating area 13 of the clamping body 10 and is provided with a blade portion and a merging portion, and the nip portion and the detaching blade 20 are clamped and clamped. The splicing portion of the body 10 is fitted, and the merging portion has a tip portion, and the tip portion of the merging portion and the tip portion of the splicing portion are Correspondingly, the two wall surfaces of the detachable blade 20 abut against the first clamping piece 11 and the second clamping piece 12 respectively, and the blade portion includes a plurality of cutting edges 21 and at least one light-cutting edge 22, and the cutting edge 21 And the wiper blades 22 are respectively formed on the two side edges of the detachable blade 20, and the cutting edge 21 is located at one end of the detachable blade 20, and the wiper blade 22 is located at the other end of the detachable blade 20, the detachable blade The blade width of 20 is gradually increased from the cutting edge 21 to the wiper edge 22, and the detachable blade 20 further has a through hole 23 through which the through hole 23 is formed, and the nip portion of the detachable blade 20 is formed by a protrusion. a flange 24 located on a wall surface connecting the ends of the wiper edge 22, the flange 24 having two oblique side walls and the tip portion being formed at the center of the top end of the flange 24, the flange 24 being embedded The groove 15 of the body 10 is clamped to improve the effect of the detachable blade 20 being positioned in the clamping body 10. In another preferred embodiment, please refer to FIG. 5, the detachable blade 20A The splicing portion is a concavely formed groove 24A formed at an end portion of the connection wiper 22, the groove 24A Two oblique side walls and the tip portion formed in the bottom center of the recess 24A, 24A of the recess 10A of the fitting member clamping the flange 15A.

Referring to FIG. 2 and FIG. 3, the fixing member 30 is provided with a fixing clamping body 10 and a detachable blade 20. In the preferred embodiment, the fixing member 30 is a bolt. During the fixing process, the fixing member is fixed. The through hole 111 of the first clamping piece 11 and the through hole 23 of the detachable blade 20 are sequentially penetrated, and finally the fixing member 30 is screwed and fixed in the screw hole 121 of the second clamping piece 12.

The advantage of the present invention is that, through the use of the detachable blade 20, a clamping body 10 can be matched with the detachable blade 20 of different specifications, which is more versatile in processing, when the blade of the detachable blade 20 is damaged. It is only necessary to replace the new detachable blade 20 without having to replace the entire screw tap. Since the clamping body 10 has a steel structure, it has elasticity, and the first clamping piece 11 has a displacement space by the arrangement of the gap 15, so that it is easier to disassemble and mount the blade by the groove 16 and the flange 24 The fitting can precisely position the detachable blade 20.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. However, the present invention has been described above by way of a preferred embodiment, but is not intended to limit the present invention, and is not limited in any technical field. Those skilled in the art can use the above technical content to propose an equivalent embodiment that changes or modifies the equivalent change without departing from the technical scope of the present invention. However, the above embodiments are implemented according to the technology of the present invention without departing from the novel technology. Any simple modifications, equivalent changes and modifications made by the examples are still within the scope of the novel technical solutions.

10‧‧‧Clamping body

20‧‧‧Removable blade

30‧‧‧Fixed parts

Claims (10)

A tapping of a replaceable blade, comprising: a clamping body having a first clamping piece, a second clamping piece, a receiving area and a connecting portion, a first clamping piece and a second clamping piece The splicing portions are respectively formed on the clamping body, and the accommodating portion is formed between the first clamping piece and the second clamping piece, and the splicing portion is disposed between the first clamping piece and the second clamping piece and has a detachable blade is disposed in the accommodating area of the clamping body, the detachable blade has a blade portion and a merging portion formed on both sides of the detachable blade The portion is disposed on one end wall surface of the detachable blade, and the nip portion of the detachable blade is fitted to the splicing portion of the clamping body and has a tip portion, and the tip portion of the merging portion corresponds to the tip portion of the splicing portion And fitting; a fixing member is disposed and fixed in the first clamping piece, the second clamping piece and the detachable blade. The tapping of the replaceable blade according to claim 1, wherein the blade portion of the detachable blade has a plurality of cutting edges and at least one wiper edge, and the cutting edge and the wiper edge are respectively formed at the two ends of the detachable blade. The cutting edge is at one end of the detachable blade, and the dicing edge is located at the other end of the detachable blade, and the blade width of the detachable blade is gradually increased from the cutting edge to the wiper edge. The tapping of the replaceable blade of claim 1, wherein the detaching blade nip is a protruding flange that is located on one end of the detachable blade, the flange having two oblique directions The side wall and the tip of the merging portion are formed at the center of the top end of the flange, and the nip portion of the clamping body includes an extending block and a groove, and the extending block engages the first clamping piece and the second clamping piece The wall surface is located at the end of the accommodating area, and the groove is concavely formed on the wall surface of the extending block, the concave surface The groove has two oblique side walls and the tip of the splicing portion is formed at the center of the bottom end of the groove, and the flange of the detachable blade is fitted to the groove of the clamping body. The tapping of the replaceable blade according to claim 2, wherein the detaching blade nip is a protruding flange which is located on the end face of the connecting wiper having two slant The tip portion of the side wall and the merging portion is formed at the center of the top end of the flange, and the nip portion of the clamping body includes an extending block and a groove, and the extending block engages the first clamping piece and the second clamping piece. The inner wall surface is located at the end of the accommodating area, and the groove is concavely formed on the wall surface of the extending block, the groove has two oblique side walls and the tip of the splicing portion is formed at the center of the bottom end of the groove, the detachable blade The flange is fitted to the groove of the clamping body. The tapping of the replaceable blade according to claim 1, wherein the clamping body has an extension block, the nip portion of the clamping body is a flange, and the flange is formed on the wall surface of the extension block, the flange Having two oblique side walls and a tip portion of the splicing portion is formed at the center of the top end of the flange, and the nip portion of the detachable blade is a groove recessed in one end of the detachable blade, the groove having The two oblique side walls and the tip of the kneading portion are formed at the center of the bottom end of the groove, the groove fitting the flange of the clamping body. The tapping of the replaceable blade according to claim 2, wherein the clamping body has an extension block, the nip portion of the clamping body is a flange, and the flange is formed on the wall surface of the extension block, the flange The utility model has two oblique side walls and a tip portion of the splicing portion is formed at the center of the top end of the flange, and the nip portion of the detachable blade is a groove, and the groove is concavely formed on the end surface of the connection wiper, the groove There are two oblique side walls and a tip portion of the merging portion is formed at the center of the bottom end of the groove, the groove fitting the flange of the clamping body. A replaceable blade screw as claimed in any one of claims 3 to 6 The tapping body further includes a gap formed by the gap between the first clamping piece and the extending block, and the groove is concavely formed on the wall surface of the extending block. The tapping of the replaceable blade according to any one of claims 1 to 6, wherein the first clamping piece is formed with a through hole, and the second clamping piece is formed with a screw hole through which the opening position of the through hole and the screw hole are formed. Correspondingly, the detachable blade further has a through hole extending through the forming detachable blade, and the fixing member is a bolt, and the fixing member sequentially penetrates the through hole of the first clamping piece and the through hole of the detachable blade, and finally the fixing member is screwed. It is fixed in the screw hole of the second clamping piece. A tapping of a replaceable blade according to any one of claims 1 to 6, wherein the clamping body is a steel structure. The screw tap of the replaceable blade according to claim 7, wherein the clamping body is a steel structure.