TWM474588U - Multi-blade type blade screw tap - Google Patents

Description

Multi-blade blade tapping

The present invention is a type of screw tapping, which means that the blade of the cuttable material is a replaceable multi-blade blade tap.

Screw tapping tools are common in the traditional processing industry. These tools are used for the machining of screw holes. The existing tapping tools have integral cutting edges. However, the cutting edges of the same hole can be divided into straight and inclined forms and different. For the processing purposes, there are also differences in the specifications of the thread in the blade. Depending on the pitch of the screw, it can be divided into metric, imperial and American. In order to meet different processing purposes and to process different screw holes, it is necessary to purchase. Screw cutters of various specifications, in order to store different taps of different specifications, must increase the cost of storage space. In addition, tapping tools are often used for the processing of metal materials. Due to the hard metal, the tapping tools are long-lasting. During the processing, the strength of the blade portion will gradually decrease and the situation of chipping will easily occur. When the blade is damaged, the whole screw tapping tool needs to be replaced, which has the disadvantage of high replacement cost.

In view of the above-mentioned shortcomings of the prior art, the present invention improves the prior art screw tapping tool to achieve the purpose of replacing blades of various specifications and effectively reducing the cost of construction and replacement.

In order to achieve the above new object, the technical means adopted by the present invention is to design a multi-blade blade tapping, which comprises: a clamping portion, which is a cylinder; a blade holder disposed at one end surface of the clamping portion, the blade holder having at least two device slots, each device slot being located at an opposite position, and concavely formed on the peripheral wall surface of the blade holder and extending through the end of the blade holder The device slot has two adjacent inner wall surfaces, a fixing hole formed on the inner side wall surface of the device slot; at least two tapping blades disposed in each device slot of the blade seat, the tapping blade has a perforation, plural a cutting edge and a plurality of light-cutting edges, the punching is formed in the tapping blade and corresponding to the fixing hole of the device slot, and each cutting edge and each light-cutting edge are formed on the tapping blade; at least two fixing members are disposed through the fixing member The punching holes of each tapping blade are fixed to the fixing holes of each device slot.

The present invention is provided with a blade holder at the end of the clamping portion, and the blade holder is provided with more than two device slots, and each of the tapping blades is disposed and fixed in each device slot, and the cutting edge and the wiper edge thereof are protruded from In addition to the blade holder, the combination of the multi-blade blade tapping is completed. In practical applications, the multi-blade blade tapping can replace the tapping blade of the corresponding specification to meet the machining of the screw holes of different pitches and applications. The combination of a set of clamping parts and blade holders can be matched with tapping blades of different specifications. In addition, when the tapping blade is damaged, it can be reused only by replacing the new tapping blade, because the new type has the characteristics of replacing the tapping blade. Therefore, it can effectively reduce the procurement and replacement cost of the tapping tool.

The multi-piece blade taps, wherein the blade holder has three device slots, and the distance between the three device slots of the blade holder is equal.

The multi-blade blade tapping, wherein the blade holder has four device slots, and the distance between the four device slots is equal.

When more than two device slots are arranged on the blade holder, the blade holder can be equipped with more than two tapping blades. In actual processing applications, the cutting process can be effectively improved by the setting of a plurality of tapping blades. The degree of stability.

10‧‧‧Clamping Department

20‧‧‧ blade holder

21‧‧‧ device slot

211‧‧‧Fixed holes

30‧‧‧Tapping blades

31‧‧‧Perforation

32‧‧‧ cutting edge

33‧‧‧Lighting blade

40‧‧‧Fixed parts

20A‧‧‧ blade holder

21A‧‧‧ device slot

211A‧‧‧Fixed holes

20B‧‧‧ blade holder

21B‧‧‧ device slot

211B‧‧‧Fixed holes

Fig. 1 is a perspective view showing the appearance of a first embodiment of the present invention.

Figure 2 is an exploded perspective view of the first embodiment of the present invention.

Figure 3 is a front perspective view of the first embodiment of the present invention.

Figure 4 is a cross-sectional view of the tapping blade and the holder of the first embodiment of the present invention.

Figure 5 is a cross-sectional view of the tapping blade and the holder of the second embodiment of the present invention.

Figure 6 is a cross-sectional view of the tapping blade and the holder of the third embodiment of the present invention.

The technical means adopted by the present invention for achieving a predetermined new purpose are further explained below in conjunction with the drawings and the preferred embodiments of the present invention.

Referring to FIG. 1 and FIG. 3, the multi-blade blade tapping of the first embodiment of the present invention comprises a clamping portion 10, a blade holder 20, two tapping blades 30 and two fixing members 40.

Referring to FIG. 1 and FIG. 2, the clamping portion 10 is a cylinder, and the clamping portion 10 is a clamping and fixing region of the processing tool.

Referring to FIG. 2, FIG. 3 and FIG. 4, the foregoing blade holder 20 is disposed at one end surface of the clamping portion 10, and has two device slots 21 at two opposite positions, and each device slot 21 is concave. Formed on the peripheral wall surface of the blade holder 20 and penetrating one side end surface of the blade holder 20, the device groove 21 is formed with two adjacent inner wall faces having a clamping angle, and each device slot 21 has a fixing hole 211, and the fixing hole 211 is located at One of the inner side wall faces of the device slot 21.

The tapping blade 30 is disposed in the blade holder 20, and the adjacent outer wall faces of the tapping blade 30 are provided with a clamping angle. The adjacent side wall faces of the tapping blade 30 are joined to the two adjacent inner sides of the device slot 21. In the wall surface, each of the tapping blades 30 has a through hole 31, a plurality of cutting edges 32 and a plurality of light-cutting edges 33, and the through holes are formed in the tapping blades 30 and corresponding to the fixing holes 211 of the device slots 21, and the cutting edges 32 and the respective light-removing blades The blade 33 is formed on the same side wall surface of the tapping blade 30, and each of the cutting edges 32 and the wiper blades 33 protrudes beyond the blade holder 20.

The fixing member 40 is disposed in the fixing hole 211 of each of the device slots 21 and is fixed in the fixing hole 211 of each device slot 21. In a preferred embodiment, the fixing member 40 can be a screw and the fixing hole 211 is a The screw holes have internal threads, and the screws penetrate the through holes 31 of the tapping blade 30 and are locked and fixed in the screw holes of the respective fixing holes 211.

By means of the arrangement of the device slot 21 of the blade holder 20, the present invention becomes a multi-blade blade tap for freely detachable and replaceable the tapping blade 30. In practical applications, the present invention can pass through the tapping blade 30 of different specifications. It can be replaced and used to meet the processing of various types of screw holes. In addition, when the tapping blade 30 is damaged during processing, it is only necessary to replace the blade portion of the present type to continue processing, without replacing the entire set of screws. Attacking the tool, because the new model has the above two characteristics, it can effectively reduce the cost of purchasing and replacing the tool.

Referring to FIG. 5, a second embodiment of the present invention further includes a blade holder 20A, three tapping blades 30 and three fixing members 40. The blade holder 20A is connected to one end surface of the clamping portion 10 and has The three device slots 21A have the same distance between the three device slots 21A on the blade holder 20A. A fixing hole 211A is formed in the wall surface of each device slot 21A, and the tapping blades 30 are respectively mounted on the respective devices. In the groove 21A, each of the fixing members 40 penetrates the through holes 31 of the tapping blades 30 and is fixed in the fixing holes 211A of the respective device grooves 21A.

Referring to FIG. 6 , a third embodiment of the present invention further includes a blade holder 20B, four tapping blades 30 and four fixing members 40. The blade holder 20B is connected to one end surface of the clamping portion 10 and has Four device slots 21B, the distance between the four device slots 21B on the blade holder 20B is equal, and a fixing hole 211B is formed on the wall surface of each device slot 21B, and each tapping blade 30 is respectively disposed in each In the device groove 21B, each of the fixing members 40 penetrates the through holes 31 of the tapping blades 30 and is fixed in the fixing holes 211B of the respective device grooves 21B.

The above description is only a preferred embodiment of the present invention, and is not intended to impose any limitation on the present invention. However, the present invention has been described above by way of preferred embodiments, but is not intended to limit the present invention. Equivalent embodiments that modify or modify equivalent changes may be made by using the above technical content without departing from the spirit of the present invention. Any of the simple modifications, equivalent variations, and modifications of the above-described embodiments of the present invention are still within the scope of the present invention.

10‧‧‧Clamping Department

20‧‧‧ blade holder

30‧‧‧Tapping blades

40‧‧‧Fixed parts

Claims (6)

A multi-blade blade tapping, comprising: a clamping portion, which is a cylinder; a blade holder disposed at an end surface of the clamping portion, the blade holder having at least two device slots, each device slot At a relative position, and concavely formed on the peripheral wall surface of the blade holder and extending through the end of the blade holder, the device slot has two adjacent inner wall surfaces, a fixing hole formed on the inner side wall surface of the device slot; at least two tapping blades, The tapping blade is disposed in each device slot of the blade seat, the tapping blade has a perforation, a plurality of cutting edges and a plurality of wiper blades, and the perforation is formed in the tapping blade and the fixing hole of the corresponding device slot, each cutting edge And each of the polishing blades is formed on the tapping blade; at least two fixing members are disposed through the through holes of the tapping blades and fixed to the fixing holes of the slot of each device. The multi-blade blade tapping of claim 1, wherein each cutting edge of each tapping blade and each of the wiper blades are formed on the same side wall surface of the tapping blade and protrude beyond the insert seat. The multi-blade blade tapping according to claim 2, wherein the blade holder has two device slots, and adjacent two outer wall surfaces of the tapping blade are provided with a clamping angle, and adjacent sidewall faces of the tapping blade are engaged Two adjacent inner wall faces of the device slot. The multi-piece blade tapping of claim 2, wherein the blade holder has three device slots and the spacing between the three device slots of the blade holder is equal. The multi-piece blade tapping of claim 2, wherein the blade holder has four device slots, and the spacing distance between the four device slots is equal. The multi-blade blade tapping according to any one of claims 3 to 5, wherein the fixing member is a screw and the fixing hole is a screw hole having an internal thread, and each of the screws penetrates the through hole of the tapping blade and is fixedly locked Within each screw hole.