TWI806763B - Combined Knife - Google Patents

Abstract

A combined cutter includes a cutter bar, a set of connecting blocks, a first locking piece, and a blade. The knife rod includes a rod body and a rod head connected to one end of the rod body. The rod head has a set of receiving grooves. The assembling block includes a body detachably embedded and positioned in the assembling slot, and a knife accommodating slot formed at the end of the body away from the rod head. The first locking piece is used to fix the assembly block to the rod head. The knife edge is detachably arranged in the knife holding groove. By virtue of the body being detachably embedded and positioned in the assembly receiving groove, and the blade being detachably arranged in the knife holding groove, when a collision of knives occurs and the assembly block and the blade are damaged, It can continue to be used only by replacing the new block and blade, without replacing the tool holder.

Description

Combined Knife

The invention relates to a combined tool, in particular to a combined tool applied to a processing machine.

Referring to FIG. 1 , a tool structure 1 disclosed in Taiwan Patent No. M581949U includes a tool holder 11 and a turning tool 12 . The tool bar 11 has a cavity 111 for receiving the turning tool 12 and a locking hole 112 for a bolt 13 to lock the turning tool 12 . The turning tool 12 has a pair of locking holes 112 for passing through holes 121 for the bolts 13 to pass through.

When intending to use the existing tool structure 1 for lathe processing, by installing the tool holder 11 on a turret of a lathe processing machine (not shown in the figure), and moving the turret linearly, the turning tool 12 is aligned with the workpiece. For cutting. However, in the process of processing, a tool collision may be caused due to an operation error. In addition to causing damage to the turning tool 12 and requiring replacement of the turning tool 12, what’s more, it may cause the tool holder 11 to accommodate the pocket 111 of the turning tool 12. The surrounding parts are damaged, which affects the machining accuracy. Therefore, the tool bar 11 needs to be removed from the turret for replacement. However, the replacement of the tool bar 11 is not only troublesome, but also the damaged part of the tool bar 11 may account for the entire proportion of the tool bar. It is very small, but it is necessary to replace the tool holder 11 as a whole, so that the overall loss cost is too high.

Therefore, the object of the present invention is to provide a combined tool which overcomes the disadvantages of the prior art.

Therefore, the combined cutter of the present invention includes a cutter shaft, a set of connecting blocks, a first locking member, and a blade. The knife rod includes a rod body, and a rod head connected to one end of the rod body, and the rod head has a set of receiving grooves. The assembling block includes a body detachably embedded and positioned in the assembling slot, and a knife accommodating slot formed at the end of the body away from the rod head. The first locking piece is used to fix the assembly block to the rod head. The knife edge is detachably arranged in the knife holding groove.

The effect of the present invention lies in that: the body of the assembly block is detachably embedded in the assembly receiving groove positioned at the rod head, and the blade is detachably arranged in the knife holding groove. In some cases, if the damaged part occurs on the joint block and the blade, you only need to disassemble the joint block and the blade from the knife bar, and replace the new joint block and blade to continue using. There is no need to replace the tool holder.

Before the present invention is described in detail, it should be noted that the relative position terms used in the following descriptions, such as: "front", "rear", "left", "right", "top", "bottom", are Based on the orientation shown in each figure and the normal use orientation, similar components are denoted by the same number.

Referring to FIGS. 2 and 3 , an embodiment of the combined cutter 2 of the present invention includes a cutter bar 3 , a set of connecting blocks 4 , a first locking member 5 , a second locking member 6 , and a blade 7 .

Referring to Fig. 4 to Fig. 6, the cutter bar 3 includes a shaft portion 31 extending along a front-rear direction X, a shaft head 32 connected to the front end of the shaft portion 31, and a shaft formed on the shaft portion 32. Main pressing part 33.

The shaft portion 31 has several convex ribs 311 formed on the side, and the convex ribs 311 can provide a certain degree of shock absorption effect when the combined tool 2 performs processing operations.

The rod head 32 has a first wall 34 connected to the rod body 31 and located on a plane perpendicular to the front-rear direction X, and a second wall 34 connected to the left end of the first wall 34 along a left-right direction Y. Wall 35, a third wall 36 connected to the top of the first wall 34 and the second wall 35 along a top-bottom direction Z, and a perforation through the second wall 35 along the left-right direction Y 37. Wherein, the front-back direction X, the left-right direction Y and the top-bottom direction Z are perpendicular to each other. The first wall 34 cooperates with the second wall 35 and the third wall 36 to define an assembly slot 38 for the assembly block 4 to be disposed.

The first abutting wall 34 has a first abutting surface 341 adjacent to one side of the assembling groove 38 , and a first abutting surface 341 extending from the first abutting surface 341 toward the assembling groove 38 along the front-rear direction X. A limit block 342 . The second wall 35 has a second abutment surface 351 adjacent to one side of the assembly groove 38, and a second abutment surface 351 extending from the second abutment surface 351 along the left-right direction Y toward the assembly groove 38 and connected to it. The second limiting block 352 of the first limiting block 342 . The third abutting wall 36 has a third abutting surface 361 adjacent to one side of the receiving groove 38 . The first limiting block 342 , the second limiting block 352 , the first abutting surface 341 , the second abutting surface 351 and the third abutting surface 361 cooperate to define a limiting groove 39 .

The main pressing portion 33 is formed on the front side of the third wall 36 and adjacent to the assembly groove 38. The main pressing portion 33 has a main extension surface 331 extending forward from the third wall 36, and a main extension surface 331 connected to the third wall 36. The main contact surface 332 at the front end of the main extension surface 331 , and a first screw hole 333 formed on the main contact surface 332 along the front-rear direction X for screwing the first locking member 5 .

Referring to FIGS. 4 to 7 , the assembly block 4 includes a body 41 detachably embedded in the assembly groove 38 , and a knife-setting groove formed at the end of the body 41 away from the rod head 32 42, and a secondary pressing portion 43 formed on the top of the body 41.

The main body 41 has a first abutting surface 411 which is opposite to the end of the knife holding groove 42 along the front-rear direction X and abuts against the first abutting surface 341 , a left end connected to the first abutting surface 411 and A second abutting surface 412 abutting on the second abutting surface 351 , a third abutting surface 413 connected to the top ends of the first abutting surface 411 and the second abutting surface 412 and abutting on the third abutting surface 361 , a first protrusion 414 extending from the first contact surface 411, a second protrusion 415 extending from the second contact surface 412 and connecting the first protrusion 414, and a The second screw hole 416 is formed on the second protrusion 415 and correspondingly communicates with the through hole 37 . The first protruding block 414 and the second protruding block 415 are used to engage in the limiting groove 39 .

The knife receiving groove 42 is formed on a side of the body 41 along the left-right direction Y opposite to the second contact surface 412 . The knife edge 7 is detachably disposed in the knife holding groove 42 . In this embodiment, the blade 7 is a turning tool, and there are many types of turning tools, so it is not limited to the one shown in this embodiment. The shape of the knife holding groove 42 can be adjusted according to different types of blades 7, so it is not limited to the shape and structure exemplified in this embodiment.

The secondary pressing portion 43 is adjacent to the third wall 36, and has a secondary extension surface 431 formed on the third contact surface 413 and matched with the main extension surface 331, and a secondary extension surface 431 connected to the secondary extension surface 431 and the The main abutting surface 332 cooperates with the auxiliary abutting surface 432 .

Referring to Fig. 4, Fig. 6, Fig. 8 and Fig. 9, the main extension surface 331 cooperates with the auxiliary extension surface 431 to define an obliquely arranged and continuous annular surrounding surface 81, the main abutment surface 332 and the auxiliary abutment surface 432 The fit defines a complete circular pressing top surface 82 connected with the surrounding surface 81 , and the surrounding surface 81 cooperates with the pressing top surface 82 to form a first post 8 that is concave-convexly matched with the first locking member 5 .

Referring to Fig. 8 to Fig. 10, it is worth noting that a first included angle θ1 less than 90 degrees is defined between the first abutment surface 341 and the second abutment surface 351, and the first limiting block 342 and the second abutment surface The included angle between the limiting blocks 352, the included angle between the first abutting surface 411 and the second abutting surface 412, the included angle between the first protruding block 414 and the second protruding block 415 are all the same as the first Angle θ1. The end surface of the first limiting block 342 adjacent to the assembly groove 38 is inclined relative to the first abutment surface 341 and defines a second included angle θ2 less than 90 degrees with the third abutment surface 361. The abutting surface 411 cooperates with the first limiting block 342 and is inclined. The end surface of the second limiting block 352 adjacent to the assembly groove 38 is inclined relative to the second abutment surface 351 and defines a third included angle θ3 less than 90 degrees with the third abutment surface 361. The abutting surface 412 cooperates with the second limiting block 352 and is inclined. The above-mentioned structure makes the combination tool 2 of the present invention under force when in use, and the assembly block 4 can lean against the rod head 32 more stably to avoid slippage.

Referring to Fig. 4, Fig. 8 and Fig. 9, the first locking member 5 is used to fix the assembly block 4 to the rod head 32, and includes a lock head 51, a lock head 51 connected to the lock head 51 and used for The threaded portion 52 is screwed to the first screw hole 333 , and a recessed portion 53 is formed at the joint between the locking portion 51 and the threaded portion 52 and is concave-convexly matched with the first post 8 . The recessed portion 53 has an abutment surface 531 connected to the threaded portion 52 and against the pressing top surface 82 , and an abutment surface 531 connected between the abutment surface 531 and the locking portion 51 and wrapped around the surrounding surface. 81 outer annular surface 532. The annular surface 532 is obliquely connected between the abutting surface 531 and the lock portion 51 in cooperation with the surrounding surface 81 , when the first locking member 5 is screwed to the first threaded portion 52 , the annular surface 532 presses against the surrounding surface 81 , so that the secondary pressing portion 43 moves upward toward the main pressing portion 33 , and the first locking member 5 can stably fix the assembly block 4 on the rod head 32 . It is worth noting that, in this embodiment, the surrounding surface 81 and the annular surface 532 are corresponding inclined planes. In other variations, they may also be corresponding inclined convex arc surfaces. When the first locking member 5 is screwed to the first threaded portion 52, the ring surface 532 is pressed against the surrounding surface 81, so that the auxiliary pressing portion 43 moves upward toward the main pressing portion 33 to achieve the same function. Therefore, it is not limited to this embodiment.

Referring to FIG. 10 , the second locking member 6 passes through the through hole 37 along the left-right direction Y and is screwed to the second screw hole 416 , so that the assembly block 4 can be fixed on the rod head 32 more stably.

Referring to Fig. 11, when the combined tool 2 of the present invention is used in a lathe processing machine (in the drawing, only a turret 91 is drawn, and a chuck 92 for clamping a workpiece 93), the rod body 31 is installed On the turret 91, and make the rod head 32, the block 4 and the blade 7 exposed outside the turret 91, by moving the turret 91 linearly, the blade 7 can cut the workpiece 93 . In the process of processing, if the situation of knife collision occurs due to misoperation, the position where the blade 7 of the assembly block 4 is set is relatively protruding from the rod head 32, so that the damaged part can be controlled within the assembly. The parts of the connecting block 4 and the blade 7 will not affect the rod head 32, so the operator only needs to disassemble the connecting block 4 together with the blade 7 from the rod head 32, and replace with a new one. Block 4 and blade 7 just can continue to carry out processing operation.

To sum up, the combined tool 2 of the present invention is detachably embedded and positioned on the rod head 32, the The knife edge 7 is detachably arranged in the knife holding groove 42. If the knife collides with the knife and is damaged, it only needs to replace the new assembly block 4 and the knife edge 7 and it can continue to be used without replacing the knife bar 3. The cost of loss is effectively reduced, and the concavo-convex fit between the first protrusion 8 formed by the main pressing part 33 and the auxiliary pressing part 43 and the first locking piece 5 enables the assembly block 4 to be stably fixed. Placed on the club head 32, it can indeed achieve the purpose of the present invention.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

2: Combined tool 3: Arbor 31: rod body 311: convex rib 32: club head 33: Main pressing department 331: main extension surface 332: The main face 333: the first screw hole 34: First against the wall 341: the first face-to-face 342: the first limit block 35: second against the wall 351: The second face-to-face 352: the second limit block 36: third against the wall 361: The third face-to-face 37: perforation 38: Assembly slot 39: limit groove 4: Assembly block 41: Ontology 411: First Arrival 412: The second arrival 413: The third arrival 414: first bump 415: second bump 416: Second screw hole 42: Knife placement slot 43:Deputy pressing department 431: Auxiliary extension surface 432: vice arrival 5: The first lock 51: lock head 52: threaded part 53: Concave design 531: contact surface 532: ring joint surface 6: The second locking piece 7: blade 8: The first boss 81: around the surface 82: Press the top surface 91: Knife Tower 92: Chuck 93: Workpiece θ1: the first included angle θ2: second included angle θ3: The third included angle X: Front and rear direction Y: left and right direction Z: top and bottom direction

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a three-dimensional exploded view of a cutter structure of Taiwan's certificate No. M581949U patent case; Fig. 2 is a three-dimensional combination diagram of an embodiment of the combined cutter of the present invention; Fig. 3 is another perspective combined view of this embodiment; Fig. 4 is a three-dimensional exploded view of this embodiment; Fig. 5 is another three-dimensional exploded view of this embodiment; Fig. 6 is a perspective view of a cutter bar of this embodiment; Fig. 7 is a perspective view of a set of connection blocks of this embodiment; Fig. 8 is a side view of this embodiment; Fig. 9 is an incomplete sectional view along line IX-IX of Fig. 8; Figure 10 is a sectional view along the line X-X of route 8; and Fig. 11 is a schematic diagram of the embodiment installed on a turret.

3: Arbor

31: rod body

32: club head

33: Main pressing department

34: First against the wall

35: second against the wall

36: third against the wall

38: Assembly slot

4: Assembly block

41: Ontology

413: The third arrival

42: Knife placement slot

43:Deputy pressing department

431: Auxiliary extension surface

432: vice arrival

5: The first lock

6: The second locking piece

7: blade

X: Front and rear directions

Y: left and right direction

Z: top and bottom direction

Claims (7)

A combined cutter, comprising: a knife rod, including a rod body extending along a front-rear direction, and a rod head connected to one end of the rod body, the rod head having a rod connected to the rod body One end and a first wall located on a plane perpendicular to the front-rear direction, a second wall connected to one end of the first wall along a left-right direction perpendicular to the front-rear direction, and a second wall connected to the first wall and The second wall is along a third wall at one end perpendicular to the front-back direction and the top-bottom direction of the left-right direction, and the first wall, the second wall and the third wall cooperate to define a set of joints The first wall has a first wall adjacent to one side of the assembly container, the second wall has a second wall adjacent to one side of the assembly container, and the third The leaning wall has a third leaning surface adjacent to one side of the assembly groove, and the angle between the first leaning surface and the second leaning surface is less than 90 degrees; a set of connecting blocks includes a detachably embedded A body positioned in the assembly slot, and a knife slot formed at the end of the body away from the rod head, the body has a knife slot opposite to the front and back direction and abuts against the second A first abutment surface, a second abutment surface connected to one end of the first abutment surface along the left-right direction and abutted against the second abutment surface, and a second abutment surface connected to the first abutment surface and the second abutment surface One end of the two abutting surfaces along the top-bottom direction abuts against the third abutting surface of the third abutting surface, the knife receiving groove is formed on a side of the body opposite to the second abutting surface along the left-right direction, the The included angle between the first abutment surface and the second abutment surface is less than 90 degrees; a first locking piece for fixing the assembly block to the rod head; and A knife edge is detachably arranged in the knife holding groove. The combined cutter according to claim 1, wherein the cutter bar further includes a main pressing part formed on the head of the rod, and the block also includes a secondary pressing part formed on the body, the main pressing part There is a first screw hole for screwing the first locking piece, the main pressing part and the secondary pressing part cooperate to define a first boss that is concave-convex matched with the first locking piece, and the first locking piece includes a A lock head, a threaded part connected to the lock head and used to be screwed into the first screw hole, and a concave groove formed at the joint between the lock head and the threaded part and mated with the first boss. Set up a department. The combined tool according to claim 2, wherein the main pressing portion further has a main extension surface extending from the rod head, and a main extension surface connected to an end of the main extension surface opposite to the rod head The abutment surface, the secondary pressing part has a secondary extension surface formed on the top of the body and matched with the main extension surface, and a secondary abutment surface connected to the secondary extension surface and matched with the main abutment surface, the main extension surface Cooperate with the auxiliary extension surface to define a continuous ring-shaped surrounding surface. The main abutment surface cooperates with the secondary abutment surface to define a complete circular pressing top surface connected to the surrounding surface. The surrounding surface and the pressing top surface Surface fitting constitutes the first post, the recessed portion has an abutment surface connected to the threaded portion and against the pressing top surface, and an abutment surface connected between the abutment surface and the lock portion and covering An annulus outside the enclosing plane. The combined tool according to claim 3, wherein the surrounding surface is a continuous surface arranged obliquely, and the ring joint surface cooperates with the surrounding surface and is obliquely connected between the abutting surface and the lock portion. The combined tool according to claim 1, wherein the first wall also has A first limit block extending from the first abutment toward the assembly groove, the second wall also has a first limit block extending from the second abutment toward the assembly groove and connected to the first limiter. The second limit block of the position block, the first limit block, the second limit block, the first abutment surface, the second abutment surface and the third abutment surface cooperate to define a limit groove, the The included angle between the first limiting block and the second limiting block is less than 90 degrees, and the body also has a first protrusion extending from the first abutting surface, and a first protrusion extending from the second abutting surface and extending from the second abutting surface. The second protrusion connected to the first protrusion, the first protrusion and the second protrusion are used to be embedded in the limiting groove, and the angle between the first protrusion and the second protrusion Less than 90 degrees. The combined tool according to claim 1, wherein the first wall also has a first limit block extending from the first wall toward the assembly groove, and the second wall also has a Extending from the second abutment toward the assembly groove and connecting to the second limiter of the first limiter, the end surface of the first limiter adjacent to the assembly groove is opposite to the first abutment surface It is inclined and the angle between it and the third contact surface is less than 90 degrees. The first contact surface cooperates with the first limit block and is inclined. The second limit block is adjacent to the end surface of the assembly groove. As for the second abutting surface being inclined and the angle between the second abutting surface and the third abutting surface is less than 90 degrees, the second abutting surface cooperates with the second limiting block and is arranged obliquely. The combined tool according to claim 5, further comprising a second locking member, the rod head also has a through hole passing through the second wall along the left and right direction, and the body also has a hole formed on the left and right direction along the left and right direction The second protrusion corresponds to the second screw hole communicating with the through hole, and the second locking piece passes through the through hole and is screwed to the second screw hole.

Images