TWM530197U - Assembling structure of processing tool - Google Patents

Description

Processing tool assembly structure

The present invention relates to a processing tool, and more particularly to an assembly structure of a processing tool for assembly and bonding positioning of a processing head.

In machining, it is common to use a machine tool to drive a milling cutter or a punch, etc. to cut, cut or stamp the workpiece.

The prior art processing tool, as shown in the new patent of Taiwan Patent No. M386953 "Connecting device for milling cutter", mainly comprises a set of poles, a cutter disposed on the sleeve and a connection to the sleeve a fixing member of the rod and the cutter, wherein the sleeve rod and the cutter are mutually positioned by the axially extending grooves and the projections engaging each other to prevent the cutter from rotating relative to the sleeve rod To prevent the tool from loosening or falling during use.

However, the above problem of using the groove and the bump to be engaged with each other to fix the relative position of the socket rod and the cutter is that the relative position between the grooves must match the relative position between the bumps. Each groove and each of the protrusions can be respectively engaged with each other, and the size of each groove must also match the size of the corresponding protrusion to avoid the sway of the socket rod and the tool, which is required for manufacturing and assembly. The accuracy is high and the difficulty is high, so further improvement is needed.

In view of the problems of the prior art described above, the present invention aims to provide an assembly structure of a processing tool which is difficult to manufacture and assemble and which can be stably assembled.

In order to achieve the above-mentioned creative purpose, the technical means adopted by the present invention is such that the assembly structure of a processing tool comprises: a clamping handle having a rotating central axis and a receiving groove, wherein the receiving groove is concavely formed in The end surface of the front end of the shank is tapered, and the accommodating groove is tapered by the front end of the shank toward the rear end. The accommodating groove defines an inner peripheral wall surrounding the accommodating groove, and the inner peripheral wall includes a plurality of The curved surface, the curved surfaces of the clamping handle have the same radius of curvature and the center of curvature is not at the same point; a processing head is mounted on the front end of the clamping handle, the processing head has a rotating central axis and a processing portion And a set of joints formed on the rear side of the processing portion and having a shape and a size matching the receiving groove of the clamping handle, the connecting portion being separated from the processing portion by a side connecting the processing portion The outer diameter of the assembly is tapered, and the assembly has an outer peripheral wall comprising a plurality of curved surfaces, the curved surfaces of the processing heads having the same radius of curvature and the center of curvature not at the same point, when the processing head is assembled When the part is installed in the receiving groove of the clamping handle, the The central axis of rotation of the forehead is on the same line as the central axis of rotation of the clamping shank, and each curved surface of the machining head respectively corresponds to and corresponds to each curved surface of the clamping shank; The gripping handle is coupled to the processing head.

The arcuate surface of the inner peripheral wall of the clamping shank has the same center of curvature in the radial section from the central axis of rotation of the clamping shank, and the arc faces of the outer peripheral wall of the assembling portion of the processing head are in the radial direction. The center of curvature on the section is the same distance from the central axis of rotation of the processing head.

At the intersection of any two adjacent curved surfaces of the clamping shank, a rounded corner may be formed, and a boundary between any two adjacent curved surfaces of the processing head may form a rounded corner.

Each of the curved surfaces of the inner peripheral wall of the clamping shank may be an equally divided arc surface having the same curvature, and each of the curved surfaces of the outer peripheral wall of the assembling portion of the processing head may be an equally divided arc surface of the same arc.

The shank can have a through groove formed between the bottom of the accommodating groove and the end surface of the rear end of the shank, and the processing head can be concavely formed with an internal thread in the end surface of the assembly. a fixing groove, the fixing member may be a screw, which is inserted into the through groove of the clamping handle from the rear end of the clamping handle, and is coupled to the forming groove of the processing head at the front end of the clamping handle in.

The clamping shank can be a solid rod body. The bottom of the accommodating groove of the shank is concavely formed with an internal thread locking groove. The processing head can be formed with a through hole extending through the processing head in the axial direction. The processing portion and the connecting portion may be a screw that penetrates the through hole from a front side of the processing head and is coupled to the locking groove of the clamping handle.

The processing portion of the processing head may have a disk shape, and a plurality of cutting edges are provided on the peripheral ring.

The processing portion of the processing head may have a short rod shape, and a plurality of blades extending around the spiral shape are formed on the processing portion.

The processing portion of the processing head described above may have a short rod shape and have a punch.

The punch of the processing portion of the processing head may be in a straight shape, a hexagonal cross section or a star shape in cross section.

The advantage of the present invention is that, by the inner peripheral wall of the accommodating groove of the clamping shank and the outer peripheral wall of the assembling portion of the processing head, a plurality of curved surfaces whose curvature radii are not completely the same and the center of curvature is not completely the same, when When the assembly portion of the processing head is inserted into the receiving groove of the clamping handle, the arc surface of the connecting portion can be abutted against the inner portion of the receiving groove by rotating the processing head slightly opposite to the clamping handle. The curved surface of the matching portion is moved along the inclined curved surface in the accommodating groove, thereby burying the assembly portion of the processing head in the shank of the clamping shank In the groove, even if the arc surface of the assembly portion and the curvature of the arc surface in the accommodating groove have slight deviation, the assembly portion of the machining head can be firmly combined with the clamping shank. Moreover, since the radial cross-section of the receiving portion of the clamping handle and the processing portion of the processing head is non-circular, the processing head can be prevented from rotating relative to the clamping handle, thereby avoiding the processing tool of the present invention. During the use process, the processing head is loose and dropped, ensuring the safety of the workplace.

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

Referring to FIG. 1, the assembly structure of the processing tool of the present invention includes a clamping handle 10, a processing head 20, and a fastening member 30.

Referring to FIG. 2 and FIG. 3, the clamping handle 10 has a front end, a rear end, a rotating central shaft 101 and a receiving groove 11. The accommodating groove 11 is recessed in the end surface of the front end of the shank 10, and the accommodating groove 11 is tapered from the front end of the shank 10 to the rear end. The inner peripheral wall 12 of the accommodating groove 11 has a straight line in an axial section parallel to the central axis of rotation 101 of the shank 10, and the inner peripheral wall 12 is perpendicular to the central axis of rotation of the shank 10. The radial cross section of the 101 direction is non-circular, and the inner peripheral wall 12 includes a plurality of curved surfaces 121. The curved surfaces 121 of the clamping shanks 10 have the same radius of curvature and the centers of curvature are not at the same point.

Specifically, the curvature center 102 of the curved surface 121 of the clamping handle 10 is the same distance from the central axis of rotation 101 of the clamping handle 10, and the two adjacent arcs of the clamping handle 10 A fillet 122 is formed at the junction of the faces 121.

Referring further to FIG. 4, the machining head 20 is mounted at the front end of the shank 10, and the machining head 20 has a rotation center shaft 201, a processing portion 21, and a set of joint portions 22. The processing portion 21 may be a cutter for milling a workpiece or a mold for press forming a workpiece. The assembly portion 22 is formed in a short block shape, which is formed on the rear side of the processing portion 21 and is matched in shape and size to the receiving groove 11 of the clamping handle 10. The connecting portion 22 is connected to the processing portion. One side of the 21 is tapered toward the outer diameter away from the processing portion 21, and the assembly portion 22 has an outer peripheral wall 23 which is axially parallel to the direction of the central axis 201 of the machining head 20. In a straight line, the outer peripheral wall 23 has a non-circular radial cross section perpendicular to the central axis of rotation 201 of the processing head 20, and the outer peripheral wall 23 includes a plurality of curved surfaces 231, and the curved surfaces 231 of the processing head 20 The radius of curvature is the same and the centers of curvature are not at the same point.

Specifically, the curvature center 201 of the curved surface 231 of the processing head 20 has the same distance from the central axis of rotation 201 of the processing head 20, and any two adjacent curved surfaces 231 of the processing head 20 A junction 232 is formed at the junction. Therefore, when the assembly portion 22 of the processing head 20 is mounted in the receiving groove 11C of the clamping handle 10, the central axis of rotation 201 of the processing head 20 and the central axis of rotation 101 of the clamping handle 10 will The arcuate surfaces 231 of the processing head 20 respectively correspond to the respective arcuate faces 121 of the clamping shank 10 and abut each other.

The fixing member 30 connects the clamping handle 10 and the processing head 20.

As shown in FIG. 2, in the first preferred embodiment of the present invention, the clamping handle 10 further has a through slot 13 formed through the bottom of the receiving slot 11 to the clamping handle 10. Between the end faces of the rear end, the processing portion 21 of the processing head 20 has a disk shape, and a peripheral edge ring is provided with a plurality of cutting edges. The processing head 20 is further recessed at an end surface of the assembling portion 22 to form an internal thread. The fixing member 30 is a screw which is inserted into the through slot 13 of the clamping handle 10 from the rear end of the clamping handle 10 and is coupled to the processing head 20 at the front end of the clamping handle 10. The assembly is grooved 24 to lock the processing head 20 to the gripping handle 10.

As shown in FIG. 3, the inner peripheral wall 12 of the clamping handle 10 includes three arcuate surfaces 121 of the same arc, and the angle corresponding to each curved surface 121 of the clamping handle 10 is 120 degrees, correspondingly As shown in FIG. 4, the outer peripheral wall 23 of the assembly portion 22 of the processing head 20 includes three arcuate surfaces 231 of the same arc, and the angle corresponding to each curved surface 231 of the processing head 20 is 120 degrees. . In addition, when the clamping handle 10 and the processing head 20 respectively comprise four equally-divided curved surfaces 121, 231, the angle corresponding to each curved surface 121, 231 is 90 degrees; when the clamping handle 10 When the processing head 20 includes five equally-divided curved faces 121, 231, the angle corresponding to each of the curved faces 121, 231 is 72 degrees, and so on.

Referring to FIG. 5, a second preferred embodiment of the assembly structure of the processing tool of the present invention is mainly different from the foregoing first preferred embodiment in that the clamping handle 10A is a solid rod body. The through hole is not formed in the shank 10A, but a locking groove 14A having an internal thread is formed in the bottom of the accommodating groove 11 of the shank 10A. The aforementioned group is not formed on the processing head 20A. Instead of the groove, a through hole 25A is formed in the processing head 20A. The through hole 25A extends in the axial direction through the processing portion 21A and the assembly portion 22A of the processing head 20A. The fixing member 30A is a screw from which the processing head is attached. The front side of the 20A extends through the through hole 25A and is further incorporated into the locking groove 14A of the gripping handle 10A, thereby locking the processing head 20A to the gripping handle 10A.

Referring to FIG. 6, a third preferred embodiment of the assembly structure of the processing tool of the present invention is substantially the same as the first preferred embodiment, and includes a clamping portion having the receiving groove 11B and the through groove 13B. The shank 10B, the processing head 20B having the aforementioned arranging portion 22B, and the fixing member 30B are mainly different in that the processing portion 21B of the processing head 20B has a short rod shape, and the processing portion 21B is formed with a plurality of spiral-like circumferential extensions. Blade 211B.

Referring to FIG. 7 and FIG. 8 , a fourth preferred embodiment of the assembly structure of the processing tool of the present invention is substantially the same as the first preferred embodiment, and includes the receiving groove 11C and the through groove 13C. The main difference between the clamping shank 10C, the processing head 20C having the aforementioned arranging portion 22C, and the fixing member 30C is that, as shown in FIG. 9 and FIG. 10, the processing portion 21C of the processing head 20C has a short rod shape. And having a straight-shaped cutting edge forming punch 212C having a long rectangular cross section.

Referring to FIG. 11 and FIG. 12, a fifth preferred embodiment of the assembly structure of the processing tool of the present invention is substantially the same as the fourth preferred embodiment, and the main difference is that the processing portion of the processing head 20D is The 21D punch 212D is a hexagonal punch having a hexagonal cross section.

Referring to FIG. 13 and FIG. 14, a sixth preferred embodiment of the assembly structure of the processing tool of the present invention is substantially the same as the fourth preferred embodiment, and the main difference is that the processing portion of the processing head 20E The punch 212E of 21E is a star-shaped punch having a star shape in cross section.

With the design as described above, the assembly portions 22, 22A, 22B, and 22C of the processing heads 20, 20A, 20B, 20C, 20D, and 20E are inserted into the holding handles 10, 10A, 10B, and 10C. In the case of the grooves 11, 11B, 11C, even if the curved surface 231 of the combination portion 22, 22A, 22B, 22C does not correspond to the curved surface 121 of the clamping handle 10, 10A, 10B, 10C, The outer peripheral wall 23 of the portions 22, 22A, 22B, 22C and the inner peripheral wall 12 surrounding the accommodating grooves 11, 11B, 11C are each formed by a curved surface, so that the processing heads 20, 20A, 20B, 20C, 20D, 20E is slightly rotated relative to the gripping handles 10, 10A, 10B, 10C, so that the curved surface 231 of the set of portions 22, 22A, 22B, 22C corresponds to the curved surface 121 of the gripping handle 10, 10A, 10B, 10C. Then, the inclined curved surface 231 of the set of the joint portions 22, 22A, 22B, and 22C is moved along the inclined first main curved surface 121 of the gripping handles 10, 10A, 10B, and 10C, thereby processing the same. The joint portions 22, 22A, 22B, and 22C of the heads 20, 20A, 20B, 20C, 20D, and 20E are embedded in the accommodating grooves 11, 11B, and 11C of the shank 10, 10A, 10B, and 10C, and the The rotating central shaft 201 of the processing head 20 and the clamping handle 10 The central axis of rotation 101 is on the same straight line, even if the curved surface 231 of the assembly portion 22, 22A, 22B, 22C and the curved surface 121 of the clamping handle 10, 10A, 10B, 10C have slight deviations or radians The joining portions 22, 22A, 22B, and 22C of the processing heads 20, 20A, 20B, 20C, 20D, and 20E can also be firmly combined with the gripping shanks 10, 10A, 10B, and 10C.

Furthermore, due to the accommodating grooves 11, 11B, 11C of the shank 10, 10A, 10B, 10C and the assembly portions 22, 22A, 22B, 22C of the processing heads 20, 20A, 20B, 20C, 20D, 20E The radial section is non-circular, so that the processing head 20, 20A, 20B, 20C, 20D, 20E can be prevented from rotating relative to the clamping handle 10, 10A, 10B, 10C, thereby avoiding the processing tool of the present invention. During the use, the processing heads 20, 20A, 20B, 20C, 20D, and 20E are loosened and dropped to ensure the safety of the workplace.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the present invention, and any Any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the present invention.

10, 10A, 10B, 10C‧‧‧ gripper
101‧‧‧ rotating central axis
102‧‧‧Center of Curvature
11, 11B, 11C‧‧‧ accommodating slots
12‧‧‧ inner wall
121‧‧‧ curved surface
122‧‧‧
13, 13B, 13C‧‧‧through slots
14A‧‧‧Locking slot
20, 20A, 20B, 20C, 20D, 20E‧‧ ‧ processing head
201‧‧‧Rotation central axis
202‧‧‧Center of Curvature
21, 21A, 21B, 21C, 21D, 21E‧ ‧ processing department
211B‧‧‧ Blade
212C, 212D, 212E‧‧‧ punches
22, 22A, 22B, 22C‧‧ ‧ joints
23‧‧‧ peripheral wall
231‧‧‧ curved surface
232‧‧‧Corres
24‧‧‧ group slot
25A‧‧‧Perforation
30, 30A, 30B, 30C‧‧‧ Secured parts

Figure 1 is an exploded perspective view of the first preferred embodiment of the present invention. 2 is a cross-sectional view of a side view exploded and a partial component of the first preferred embodiment of the present invention. Figure 3 is an end elevational view of the clamping rod of the first preferred embodiment of the present invention. Figure 4 is an end elevational view of the processing head of the first preferred embodiment of the present invention. Figure 5 is a side elevational cross-sectional view of the second preferred embodiment of the present invention. Figure 6 is a cross-sectional view showing a side view of the third preferred embodiment of the present invention. Figure 7 is a cross-sectional view showing a side view exploded and a partial component of a fourth preferred embodiment of the present invention. Figure 8 is an end elevational view of the gripping handle of the fourth preferred embodiment of the present invention. Figure 9 is an end elevational view of the processing head of the fourth preferred embodiment of the present invention. Figure 10 is another end elevational view of the processing head of the fourth preferred embodiment of the present invention. Figure 11 is a cross-sectional view showing a side view exploded and a partial component of a fifth preferred embodiment of the present invention. Figure 12 is an end elevational view of the processing head of the fifth preferred embodiment of the present invention. Figure 13 is a cross-sectional view showing a side view exploded and a partial component of a sixth preferred embodiment of the present invention. Figure 14 is an end elevational view of the processing head of the sixth preferred embodiment of the present invention.

10‧‧‧Clamping handle

11‧‧‧ accommodating slots

12‧‧‧ inner wall

121‧‧‧ curved surface

122‧‧‧

20‧‧‧Processing head

21‧‧‧Processing Department

22‧‧‧Team

23‧‧‧ peripheral wall

231‧‧‧ curved surface

232‧‧‧Corres

24‧‧‧ group slot

30‧‧‧Fixed parts

Claims (10)

An assembly structure of a processing tool, comprising a clamping handle, a processing head and a fixing component, wherein: the clamping handle has a rotating central axis and a receiving groove, wherein the receiving groove is concavely formed in the The end surface of the front end of the shank is tapered, and the accommodating groove is tapered by the front end of the shank toward the rear end. The accommodating groove is formed with an inner peripheral wall surrounding the accommodating groove, and the inner peripheral wall includes a plurality of arcs. The curved surface of the clamping shank has the same radius of curvature and the center of curvature is not at the same point; the processing head is mounted on the front end of the clamping handle, the processing head has a rotating central axis, a processing part and a set of a portion formed on the rear side of the processing portion and having a shape and a size matching the receiving groove of the clamping handle, the connecting portion being outwardly directed away from the processing portion by a side connecting the processing portion The sleeve has a peripheral wall, the peripheral wall includes a plurality of curved surfaces, and the curved surfaces of the processing heads have the same radius of curvature and the center of curvature is not at the same point, when the assembly portion of the processing head is installed at When the clamping handle is received in the groove, the central axis of rotation of the processing head The rotation center axis of the clamping handle is on the same straight line, and each arc surface of the processing head respectively corresponds to and corresponds to each curved surface of the clamping handle; the fixing member connects the clamping handle and the processing head. The assembly structure of the processing tool according to claim 1, wherein: the arc center of the inner peripheral wall of the gripping handle has the same center of curvature in the radial section from the center axis of rotation of the gripping handle; The curvature centers of the arcuate faces of the outer peripheral wall of the assembly portion of the processing head have the same distance from the central axis of rotation of the machining head. The assembly structure of the processing tool according to claim 2, wherein a boundary of any two adjacent curved surfaces of the clamping handle forms a rounded corner, and a junction of any two adjacent curved surfaces of the processing head forms a guide. Rounded corners. The assembly structure of the processing tool according to any one of claims 1 to 3, wherein each arc surface of the inner peripheral wall of the clamping handle is an arcuate surface of the same arc, and the processing head is assembled. The arc faces of the outer peripheral wall are equally divided arcs of the same arc. The assembly structure of the processing tool according to claim 1, wherein the clamping handle has a through groove formed between the bottom of the receiving groove and the end surface of the rear end of the clamping handle, the processing The end surface of the joint is concavely formed with an internal threaded coupling groove, and the fixing member is a screw, which is inserted into the through groove of the clamping handle from the rear end of the clamping handle, and is clamped in the clamping groove The front end of the shank is incorporated into the splicing groove of the processing head. The assembly structure of the processing tool according to claim 1, wherein the clamping handle is a solid rod body, and a bottom of the receiving groove of the clamping handle is concavely formed with an internal thread locking groove. Forming a through hole in the head, the through hole extending axially through the processing portion and the assembly portion of the processing head, the fixing member is a screw, which penetrates the through hole from the front side of the processing head, and is coupled to the locking handle to be locked In the slot. The assembly structure of the processing tool according to claim 5, wherein the processing portion of the processing head has a disk shape, and a plurality of cutting edges are provided on a peripheral ring. The assembly structure of the processing tool according to claim 5, wherein the processing portion of the machining head has a short rod shape, and the machining portion is formed with a plurality of spirally extending blades. The assembly structure of the processing tool according to claim 5 or 6, wherein the processing portion of the processing head has a short rod shape and has a punch. The assembly structure of the processing tool according to claim 9, wherein the punch of the processing portion of the processing head has a straight shape, a hexagonal cross section or a star shape.