TWM287714U - Quick drill for disposable type center-free drill bit core - Google Patents

Description

M287714· VIII. New description: [New technical field] The new type is related to a drilling tool, which is specially reserved from 丄 j疋? A kind of abandoned blade type, stupid [previous technique] prepared by drilling a hole in the back of the hole. (9) Drill. As shown in Fig. 1 and 2, a drill for drilling a circular hole is generally used for a 11-center drill. And a number of blades 13. "knife

The knives have a reverse-open end face 111 and a closed end face is placed on the closed end face 112 of the screw hole 113 〇 5 中心 center drill; [2 can be reduced by a processing - 121, - The clamp bar that can be clamped can be locked to the screw 122 of the screw hole 113, and the drill bit 23 outside the seat π. The blade-blade/etc. blade 13 is respectively welded to the open end face 1^1 and is formed by a blade 131 projecting from the open end face 111. ', hunting consists of the above, when the knife drill 1Q group is set in the processing machine and is driven to rotate, the workpiece can be drilled into the workpiece by the blade 123 and the blades 13 and finally can be drilled. A through hole 21 is drilled into the workpiece 20. °Hai Knife Table 1 Although it has the above-mentioned functions, there are actually the following defects: 1. Since the above-mentioned blades 13 are welded to the holder u, the force of the blades 13 is 7J 1 3 1 6 If the wear can no longer be used, it must be replaced with the holder 11 and has a waste of cost. Although the blade 13 is removed again:): The new blade 丨3 can avoid waste of cost, but actually still There is a lack of replacement for the blade 13 which is inconvenient. When the Drill 21G of the hole 21 is drilled, the portion of the through hole 21 is completely shredded into a chip A + with a waste of material. w can not be added (four) and [new content] Therefore, the purpose of this new model is to facilitate the replacement of the blade, and can avoid;; can save cost, heart drill core retention fast drilling. The discarding blade of the good material is not in the middle; the present invention discards the blade type without the command, and the assembly unit is mounted on the processing machine and is driven by a tool holder, and the blade unit. a 籾曰7 knives, and a knives including a reversed piece of r-knife assembly, a "knife J," and a combination of the knives and the knives of the knives - the first:: a first end surface and the connecting surface of the connecting surface - a perforation provided from the first end surface toward the one surface, and the second end portion is provided to be connected to the second surface from the first end surface » - 7 is a lock groove, and a second number of the blade units disposed from the first end face toward the second end face and communicating the through hole includes a yoke. a number-blade" α ^ in the 4th brother - a blade of the blade lock slot. The first blade is detachably locked to the second blade lock slot, and the mother and the daughter each have a plurality of blades each out of the joint circumference , in each mm′′—the cutter and the convex edge and the penetrating piece each have a plurality of cutters, wherein the knife blade borrows the above composition, so that the novel has the convenience of replacing the first one—the younger one The blade 'has a cost-saving feature at the same time. In addition, after drilling a hole for the workpiece to complete the drilling operation, a relatively two M287714 perforated core material can be obtained and can be fed.吏This new type has the ability to avoid waste material. [Embodiment] With regard to the content, features and effects of the above-mentioned and other de-eight ▲ + balances of the present invention, the following is a better example of the following. In the detailed description of the & example, it will be clear that the present invention discards the blade-type centerless drill and the king is detachably locked to the holder 3

As shown in Figures 3, 5 and 7, the core fast drill comprises a blade holder 3, a blade unit 40. The blade holder 30 includes a knife-locking portion 31 and a blade assembly portion 32 in the same direction, and a first side surface 31 of the blade locking portion 31 is coupled to the blade assembly portion. a second end surface 321 ' of the 32, a circumferential surface 33, a perforation 34 from the first end surface 3U toward the second end surface, such as along the axis, from the younger end surface 311 toward the first end The first blade lock slot 35 and the first blade lock slot 30 are disposed on the joint peripheral surface 33, and are disposed on the blade holder 30 and communicate with the blade lock slots 35, 1 - " The number of the first keyhole 371 and the second number of keyholes 372 are 36. In the preferred embodiment, two first blade locking slots 35 and two second blade locking slots 36 are provided as an example, and the two first blade latches 35 are symmetrically disposed, and the second The blade lock slot % is symmetrically set. The through hole has a large aperture portion 341 adjacent to the first end surface 311, a small aperture portion 342 adjacent to the second end surface 321 of the second surface, and a defined between the large aperture portion 341 and the small aperture portion 342. Shoulder 343. Preferably, the blade holder 30 further includes two first grooves 38 and two second slots 39 which are disposed from the first end surface 311 toward the second end surface 321 and communicate with the connecting circumferential surface 33 and are spirally shaped. . Each of the first recesses 38 is formed by a groove bottom surface 381 and two groove side surfaces 382, 383 and a joint surface 384. The first blade lock groove 35 is disposed on the groove side surface 382 and is formed by a sipe bottom surface 351. And the two sipe side surfaces 352 and 353 disposed from the periphery of the sipe bottom surface 351 toward the groove side surface 382 are formed, and the sipe side surface 352 communicates with the joint circumferential surface 33, and the sipe side surface 353 does not communicate with the large aperture The portion 341 is provided on the bottom surface 351 of the sipe. Each of the second recesses 39 is formed by a groove bottom surface 39 丨 and two groove side surfaces 392 , 393 and a joint surface 394 . The second blade lock groove 36 is disposed on the groove side Φ 392 and is formed by a knife. The groove bottom surface 361 and the two-slot side surfaces 362 and 3 provided from the circumferential edge of the sipe bottom surface 361 toward the groove side surface 392 are arranged to be δ 幵 /, and the sipe side surface 3 62 does not communicate with the joint circumferential surface 3 3 The sipe side 363 communicates with the large aperture portion 341, and the second locking hole 372 is disposed on the sipe bottom surface 361. The blade unit 40 includes two first blades 41 and two second blades 42. The first blade 41 is a slightly triangular shape and has a proper thickness of the sheet body, each of the perforations 411 and the two cutting edges 412. The two first blades 41 are respectively in the first blade locking groove 35, when a bolt 8 is used. 0 passes through the through hole and locks into the first lock hole 371, so that the first blade 41 can be locked to the mortise seat 3 〇 and fixed in the first blade lock groove 35. The value indicates that since the sipe side 352 of the first blade lock groove 35 communicates with the joint circumferential surface 33, the sipe side surface 353 does not communicate with the large aperture M287714 portion 341, so one of the first blades 41 is edged. 412 is protruded from the joint circumferential surface 33, but the other cutting edges 412 do not protrude into the large aperture portion 341.

The second blade 42 is a slightly triangular shape and has a suitable thickness. Each of the second blades 42 has a through hole 421 and three cutting edges 422. The second blades 42 are respectively inserted into the second blade locking grooves 36. A bolt 8 is inserted through the through hole 421 and locked into the second locking hole 372, so that the second blade 42 can be locked to the seat 30 and fixed in the second blade lock groove 36. It should be noted that since the sipe side surface 362 of the second blade locking groove 36 does not communicate with the connecting circumferential surface 33, the sipe side surface 363 communicates with the large aperture portion 341, so one of the blades 422 of the second blade 42 is The large aperture portion 341 is extended, but the other cutting edges 422 do not protrude from the joint circumferential surface 33 (see Fig. 9). The tool holder assembly portion 32 of the tool holder 30 is for assembly with a tool holder. The tool holder can be clamped and fixed by a processing machine (not shown) and driven, thereby enabling the present invention to be capable of facing a workpiece. 70 performing a drilling operation (see FIG. 8), which may be a first tool holder 61 in a fixed seat type as shown in FIG. 7, and a second clamping rod type as shown in FIG. The knife handle 62, the third knife holder in the shape of the clamping rod... the figure shows the fourth knife handle 64. The female figure 3, 4, 6, 7 shows the knife seat 30 and the first knife handle. When the assembly is assembled, the handle assembly portion 32 has a symmetrical two recess 322 disposed from the second end surface 321 toward the first end surface 3U and communicating the coupling surface 33 and the small aperture portion 342, as for the first knife handle 61 has a cannula 6 ιι, M287714 a screw hole 612 disposed along the axis 50 of the cannula 611, and two protrusions 设置 13 disposed on the first blade 61 when the first blade 61 The cannula 611 is inserted into the small aperture portion 342, and the two protrusions 613 are inserted into the two recesses 322, and a bolt 82 is inserted through the small aperture portion 342 and locked into the screw hole 612 until the screw The shoulder 82 Subject 343, can make the first set of nodes 61 to the knife blade holder 3 billion.

It should be noted that the first blade 61 and the blade holder 30 can be assembled as shown in Fig. 11. As shown in Fig. 12, when the holder 30 is assembled with the second holder 62, the second holder 62 is formed from the second end surface 321 of the holder assembly 32 along the axis 50. As shown in FIG. 13, when the holder 30 is assembled with the third holder 63, the second holder 63 is directly affixed to the holder assembly 32. The fourth blade 64 and the cannula 641 of the small aperture portion 64 are inserted as shown in FIG. 14. When the blade holder 30 and the 'Knife blade assembly portion 3 2 are connected to the connection portion 342 a long hole 324, the fourth knife is inserted into the small aperture portion 342' and the two bolts 84 are locked between the long hole 324 (four) and the fourth knife handle 64, so that the third knife 64 can be assembled The force piece 30 〇 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The large aperture portion 341 is not extended. The second blade 42 has a blade edge extending like a (9) diameter portion 341 but does not protrude from the coupling circumferential surface 33. Therefore, drilling is performed as a palm 10 M287714, and the workpiece 70 is drilled. A ## wire and a heart material 72 relative to the perforation 71 are obtained because the core material 72 can be made of material. And use, so you can avoid the wave edge: 2:: It is obvious that when the above-mentioned first blade 41, the second blade ... wide = simultaneously protrudes from the joint circumferential surface 33 and extends eight, the large aperture portion can be drilled The hole made by the money "the use of the material 72 /, 疋 so designed will make the first blade i consume faster. The blade 4 丨 1 two blades 42 damage the second two (four) H 11, 12, 13, the comparison Jiayu: It has more than 3 cutting water holes 90 to make the drilling operation smoother. ~ The above-mentioned 'new type of 杳 杳 77 Η & rf» discard blade type centerless drill core fast drill can achieve the following effects and The advantages of the present invention are achieved: - because the first blade 41 and the second blade 42 of the present invention are releasably locked to the holder 30, and each has three blades, Similarly, when one of the blades 412, 422 has worn out, the blade 41 and the second blade 42 need only be removed by an angle, and the other blades 412, 422 can be used for drilling. Waiting for the first blade 41 and the second blade ^ to be unusable 'only need to unscrew the screws & (9), 81, and the first blade 41, the first knife, the knife 4 42 The tool holder 3 is removed, and then the new first blade 4 and the first blade 42 are respectively locked to the holder 30, and the drilling operation can be performed again. Therefore, the present invention has the first replacement. The blade Μ and the second blade 42 are quite convenient, and can save cost and advantages. 1. Because the present invention can obtain a relative side "Hai perforation 71 ^ core material 72" after drilling operation, since the core can be Material 72 is reused, so M287714 has the efficacy and advantages of avoiding wasted materials. 2. Since one of the blades 412 of the first blade 41 of the present invention protrudes from the connecting circumferential surface 33, the other cutting edges 412 do not extend into the large aperture of the first blade 42. The blade 422 is not Extending into the large aperture portion 3 41, but the opposite edge of the mountain, the blade 412 does not protrude from the connecting peripheral surface 33' is designed such that the first blade 41 and the second blade (four) are relatively slow to lose. It has the effect and advantages of being able to increase the life of the first blade 4 and the second blade. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and the repairing portion according to the novel range and the new description content. : All are still within the scope of this new patent. [Simplified illustration of the drawing] Figure 1 is a front view of a knife drill; a cross-sectional view of the shape of the 2D is used to illustrate the rapid drilling of the core drill core after drilling with a conventional knife. Figure 3 is a discarding blade of the present invention. FIG. 4 is a right side view of a preferred embodiment of the present invention, showing a knife assembly; FIG. 5 is a combined state of a left view unit of the preferred embodiment. FIG. 3 is a partially sectional view showing a preferred embodiment of the preferred embodiment of the blade holder and the blade 12 M287714, illustrating the state in which the blade of the second blade protrudes from a circumferential surface; FIG. A schematic diagram of the use of the embodiment, illustrating the state of drilling by the two first blades; FIG. 9 is a view similar to FIG. 8 illustrating the state of drilling through two second blades;

Figure 10 is a cross-sectional view of the preferred embodiment illustrating the state of a workpiece drilling operation; ^ Figure 11 is a view similar to Figure 6 illustrating the state in which the first tool holder is integrally formed with one; Figure 12 is a view similar to Figure 6 illustrating the state in which the preferred embodiment and the second blade are assembled; Figure 13 is a state similar to the view of Figure 6 after the third blade is assembled; and, The preferred embodiment and FIG. 14 are a view similar to FIG. 6, illustrating the light

Λ平乂牷贯例盥 The state after the fourth knife is assembled. /, 13 M287714 [Main component symbol description]

30 holder 38 first groove 3 1 blade lock portion 381 groove bottom surface 3 11 first end surface 382 groove side surface 32 knife assembly portion 3 83 groove side surface 321 second end surface 3 84 joint surface 3 22 groove 39 second concave Slot 323, lock hole 391, groove bottom surface 324, elongate hole 392, groove side surface 33, connection circumferential surface 393, groove side surface 34, perforation 394, joint surface 341, large aperture portion 40, blade unit 3, 42 small aperture portion 41, first blade 343, shoulder portion 4, 11 perforation, 35 One blade lock groove 412 blade 3 5 1 sipe bottom surface 42 second knife face 352 sipe side 421 perforation 353 sipe side 422 blade 36 second blade lock slot 5 0 axis 361 sipe bottom surface 6 1 first knife handle 362 knife Groove side _ 6 11 cannula 3 63 sipe side 612 screw hole 371 keyhole 6 1 3 bulge 372 keyhole 62 second knife handle 14 M287714 third knife fourth knife handle cannula workpiece perforated core bolt bolt bolt bolt bolt cutting Water hole

Claims (1)

M287714, Nine, the scope of application for patents: 1 · Abandoned blade type centerless drill core fast drill, used to assemble with a knife to be installed in a processing machine and driven, the discarding blade type centerless core The utility model comprises: a tool holder, comprising a blade locking portion in a reverse direction and a knife handle assembly portion for assembling the blade holder, and a first end face of the blade locking portion. a connecting peripheral surface of a second end surface of the assembly portion, a perforation disposed along the axis from the first end surface toward the second end surface, and a connecting and connecting from the first end surface toward the second end surface The connecting peripheral surface, the perforated plurality of blade locking grooves; and a blade unit comprising a plurality of blades respectively detachably locked to the blade locking grooves, the blades having a protruding peripheral surface and extending Enter the number of blades in the perforation. Λ 舍 舍 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据 依据And two symmetrical second blade locking slots, the number of blades such as ° Hai is four, the denier is set to two first blades respectively locked to the two first blade locking slots, and locked to the second second blade Two second blades that lock the slot. The invention relates to a discarding blade type centerless drill core drill according to the second application of the patent application scope, wherein the tool holder is further disposed from the first end face toward the second end and communicates with the joint circumferential surface The first first groove and the second second groove are formed by a groove bottom surface and a two groove side surface and a joint surface. The first blade lock groove is disposed in the first groove. One of the groove sides 16 M287714, each of the second grooves is formed by a groove bottom surface and a two groove side surface and a joint surface, and the second blade lock groove is disposed in the second groove . 4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The sides of the two slots of the slot are matched, and wherein the side of the slot communicates with the joint surface such that a blade of the first blade protrudes from the joint circumferential surface, and the side of the other slot does not communicate with the through hole. The other blade of the first blade does not protrude into the through hole, and the second blade lock groove is formed by a bottom surface of the sipe and a side of the two sipe from the periphery of the bottom surface of the sipe toward the groove side of the second groove. And a side of the sipe communicates with the through hole to extend a cutting edge of the second blade into the through hole, and the side of the sipe does not communicate with the connecting circumferential surface so that the other cutting edges of the second blade do not protrude from the connecting circumferential surface. 5. The disposable blade type centerless core-free core fast drill according to the scope of the patent application scope, wherein the perforation has a large aperture 邻近 adjacent to the blade lock portion, and a small aperture adjacent to the knife handle assembly portion And a shoulder defined between the large aperture portion and the small aperture portion, the knife handle locking portion having a first aperture surface disposed toward the first end surface and communicating with the connection circumferential surface and the aperture K. a two-groove of the cymbal having a cannula inserted into the small aperture portion - a screw hole disposed along the axis of the cannula, and a protrusion that can be inserted into the two groove A bolt passes through the small aperture and locks into the screw hole and abuts the shoulder to assemble the seat and the blade. 6. According to the patent scope of item i, the discarding blade type centerless drilling is carried out. 17 M287714, wherein the tool holder is a clamping rod and is formed along the axis from the second end surface. [7] The discarding blade type centerless core-free core fast drill according to claim 1, wherein the knife handle assembly portion has a _ keyhole that communicates with the speed knot peripheral surface and the small occlusion portion, The knife handle is a clamping rod and is inserted into the small aperture portion 疋, and is locked between the locking hole and the knife handle by a bolt, so that the knife seat δ 玄 玄 knife is assembled with each other. _ 8. The discarding blade type centerless drill core breaking speed drill according to claim 1, wherein the knife handle assembly portion has a long hole connecting the connecting circumferential surface and the small aperture portion, The knife handle is an oil knife handle and has a cannula insertable into the small hole # portion, which is locked between the cannula by two bolts, so that the knife seat and the knife handle are combined with each other. . 18