CN116276217B

CN116276217B - Boring fixture for semiconductor special-shaped piece

Info

Publication number: CN116276217B
Application number: CN202310592001.9A
Authority: CN
Inventors: 邵佳; 李欢
Original assignee: Jingjiang Jiasheng Vacuum Technology Co ltd
Current assignee: Jingjiang Jiasheng Vacuum Technology Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-07-28
Anticipated expiration: 2043-05-24
Also published as: CN116276217A

Abstract

The invention discloses a boring fixture for a semiconductor special-shaped piece, which comprises: the base body is provided with a first workpiece and a second workpiece, the second workpiece is vertically connected to the first workpiece, and the first workpiece is connected with a workbench of the machine tool; the first limiting part is connected to the second workpiece and is used for being spliced with the first through hole on the special-shaped piece; the second limiting part is connected to the second workpiece, is arranged at intervals with the first limiting part, and is used for limiting the middle connecting block on the special-shaped piece from right to left; the elastic supporting part is connected to the first chute on the second workpiece in a sliding way, supports the middle connecting block from left to right, and limits the middle connecting block together with the second limiting part; the third limiting part is connected to the second workpiece, is arranged at intervals with the second limiting part and is used for limiting the arc-shaped block on the special-shaped piece; the cutter part is connected to the first workpiece in a sliding manner and is used for boring a second notch on the special-shaped piece; therefore, the technical problems that clamping is inconvenient, positioning is inaccurate, and machining precision is difficult to unify are solved.

Description

Boring fixture for semiconductor special-shaped piece

Technical Field

The invention relates to the technical field of semiconductor parts, in particular to a boring fixture for a semiconductor special-shaped piece.

Background

The semiconductor refers to a material with controllable conductivity and conductivity between a conductor and an insulator at normal temperature, has heat sensitivity, photosensitivity, negative resistivity temperature characteristic, rectifying characteristic and the like, and is widely used for photocells, solar energy, radios, televisions, temperature measuring instruments, projection lithography machines, reverse installation machines, etchers, PVD (physical vapor deposition), cleaning machines, development, spin coating and other devices, and a plurality of parts are involved in the devices;

wherein, there is a profile comprising: a U-shaped block 101, wherein one end of the U-shaped block 101 is provided with a first notch 101-1; the conical block 102 is connected to one side of the U-shaped block 101, is close to the other end of the U-shaped block 101, is arranged at intervals from the first notch 101-1, and is provided with a first through hole 106 on the conical block 102 and the U-shaped block 101; the arc-shaped block 103, one end of the arc-shaped block 103 is provided with a second notch 103-1; a middle connection block 104 connecting the U-shaped block 101 and the arc-shaped block 103; and a triangle block 105 connected between the U-shaped block 101, the cone block 102 and the intermediate connection block 104;

because the structure of the special-shaped piece is relatively irregular, the shapes of all the components are various, and when the second notch 103-1 is processed, the clamping is inconvenient, the positioning is inaccurate, and the processing precision is difficult to unify, so that a boring fixture of the semiconductor special-shaped piece is required.

Disclosure of Invention

Aiming at the defects in the related art, the purpose is to provide a boring fixture for a semiconductor special-shaped piece, so as to solve the technical problems of inconvenient clamping, inaccurate positioning and difficult unification of machining precision in the related art.

The technical scheme for realizing the purpose is as follows: a boring jig for a semiconductor profile, comprising:

the base body is provided with a first workpiece and a second workpiece, the second workpiece is vertically connected to the first workpiece, and the first workpiece is connected with a workbench of a machine tool;

the first limiting part is connected to the second workpiece and used for being spliced with the first through hole on the special-shaped piece to limit the special-shaped piece;

the second limiting part is connected to the second workpiece, is arranged at intervals with the first limiting part, and limits the middle connecting block on the special-shaped piece from right to left;

the elastic supporting part is connected to the first chute on the second workpiece in a sliding way, supports the middle connecting block from left to right, and limits the middle connecting block together with the second limiting part;

the third limiting part is connected to the second workpiece, is arranged at intervals with the second limiting part and limits the arc-shaped block on the special-shaped piece;

And the cutter part is connected with a main shaft on the machine tool and is connected to the first workpiece in a sliding manner and used for boring a second notch on the special-shaped piece.

Further: the first limit part includes: an inner sleeve connected in the first stepped through hole on the second workpiece; the inserting shaft penetrates through the inner sleeve, two ends of the inserting shaft protrude out of the first stepped through hole, and one end of the inserting shaft is inserted into the first through hole; the first nut is in threaded connection with the other end of the plug-in shaft and locks the plug-in shaft; and the backing ring body is connected to the second workpiece, surrounds one end of the inserting shaft, is attached to the U-shaped block on the special-shaped piece, and limits the U-shaped block.

Further: the second limiting portion includes: the first fixed arm is connected to the second workpiece; the second fixing arm penetrates through a second through hole on the second workpiece, and two ends of the second fixing arm protrude out of the second through hole; the second nut is connected to one end of the second fixing arm and locks the second fixing arm; one end of the first movable arm is movably connected with the first fixed arm, and the first movable arm and the second workpiece are arranged at intervals; the second movable arm is movably connected with the other end of the second fixed arm and is used for being in plug-in fit with the other end of the first movable arm; the third nut is connected to the second movable arm and presses the first movable arm; and the movable pressing block is connected to the middle position of the first movable arm and is contacted with the middle connecting block.

Further: the appearance of the first movable arm is of a cuboid structure, a third notch is formed in the upper end of the first movable arm, the third notch is movably connected with the first fixed arm, a fourth notch is formed in the lower end of the first movable arm, the fourth notch is in plug-in fit with the second movable arm, an arc-shaped groove is formed in the middle of the first movable arm, and the arc-shaped groove is movably connected with the movable pressing block;

the movable press block comprises: the arc-shaped block is movably connected to the first movable arm through a pin shaft and is arranged at the arc-shaped groove; and the two arc-shaped bosses are symmetrically connected to the arc-shaped block body and protrude out of the arc-shaped groove to be used for being in contact with the middle connecting block.

Further: the elastic support portion includes: the first sliding block is in sliding connection with the first sliding groove; the handle is connected to one side of the first sliding block and used for poking the first sliding block to move along the first sliding groove; the limiting guide piece is connected to the first sliding block and is close to the other side of the first sliding block, and the limiting guide piece is in sliding connection with a second sliding groove on the second workpiece; and the elastic part is connected to the other side of the first sliding block and supports the middle connecting block.

Further: the elastic portion includes: the first supporting seat is connected to the first sliding block, and a second step through hole is formed in the middle of the first supporting seat; the spring is arranged in the second step through hole; one end of the sliding support is arranged in the second step through hole to compress the spring, and the other end of the sliding support protrudes out of the second step through hole; a compression element connected to the other end of the sliding support, the compression element and the sliding support having a first cavity therebetween; and one end of the rotatable supporting claw part is movably connected with the first inner cavity, and the other end of the rotatable supporting claw part is contacted with the middle connecting block.

Further: the rotatable supporting claw portion includes: the spherical part is movably connected with the first inner cavity; an extension arm connected to the ball member and disposed outside the first lumen; and the supporting claw is connected to the extension arm and contacts and supports the middle connecting block.

Further: the support claw includes: the third workpiece is connected with the extension arm; and three fourth workpieces are uniformly distributed on the third workpiece, the fourth workpieces are bent from the joint of the fourth workpieces and the third workpiece to the direction of the middle connecting block, and a second inner cavity is formed between the fourth workpieces and the third workpiece.

Further: the third limiting part is a stepped pin shaft and supports the arc-shaped block from bottom to top.

Further: the cutter portion includes: a holder body; the two second sliding blocks are symmetrically connected to the bottom of the tool rest body and are in sliding connection with a third sliding groove on the first workpiece; the first bearing is connected to the third through hole on the tool rest body; the oil nozzle is connected to the tool rest body and used for adding lubricating oil to the first bearing; the cutter connecting sleeve penetrates through the first bearing and is connected with the first bearing, and two ends of the cutter connecting sleeve protrude out of the cutter holder body; the first compression ring is connected to one side of the tool rest body and used for limiting the tool connecting sleeve and the first bearing; the second compression ring is connected to the other side of the tool rest body and limits the first bearing; the first sealing piece is connected to the first compression ring and surrounds one end of the cutter connecting sleeve; the second sealing piece is connected to the second compression ring and surrounds the other end of the cutter connecting sleeve; the middle position of the knife handle penetrates through the knife connecting sleeve and is connected with the knife connecting sleeve in a matching way, one end of the knife handle is used for connecting a knife, and the other end of the knife handle is connected with a main shaft on the machine tool; and the two clamp springs are symmetrically connected to the cutter handle and limit the cutter handle and the cutter connecting sleeve.

By adopting the technical scheme, the method has the following beneficial effects: compared with the related art, the boring fixture for the semiconductor special-shaped piece is provided with a seat body, a first limiting part, a second limiting part, an elastic supporting part, a third limiting part and a cutter part; the base is provided with a first workpiece and a second workpiece, the first workpiece is connected with a workbench of the boring machine, the base forms a reliable supporting structure, other parts are connected and arranged conveniently, the special-shaped piece is positioned by the first limiting part, the second limiting part, the elastic supporting part and the third limiting part, the cutter part is used for boring a second notch on the special-shaped piece, positioning is relatively accurate, clamping is relatively convenient, and machining precision is relatively consistent; therefore, the technical problems that the machining precision is difficult to unify due to inconvenient clamping and inaccurate positioning are solved, and the technical effects of relatively convenient clamping, relatively accurate positioning and relatively consistent machining precision are achieved.

Drawings

FIG. 1 is a schematic diagram of a general assembly structure;

FIG. 2 is a partial cross-sectional view of the first stop, the seat and the profile;

FIG. 3 is a partial cross-sectional view of the second stop portion, the resilient support portion and the profile;

FIG. 4 is a schematic view of a structure of a base;

FIG. 5 is a second schematic view of the structure of the base;

FIG. 6 is an exploded view of the second stopper;

FIG. 7 is a schematic view of the structure of the first movable arm;

FIG. 8 is a schematic view of the structure of the elastic support portion;

FIG. 9 is a partial cross-sectional view of the resilient support;

FIG. 10 is a schematic view of the structure of the rotatable support pawl;

FIG. 11 is an exploded view of the cutter portion;

FIG. 12 is a partial cross-sectional view of a cutter portion;

FIG. 13 is a schematic view of the assembled structure of the pull spring press, rotary support and outer strut of FIG. 1 with the addition of a pull spring press;

FIG. 14 is a schematic view of a hand-pulled elastomeric press;

FIG. 15 is a schematic view of a structure of a rotary support;

FIG. 16 is a schematic view of the structure of the rotary inner support;

FIG. 17 is a partial cross-sectional view of the rotary inner support;

FIG. 18 is a schematic view of the structure of the outer strut;

FIG. 19 is a partial cross-sectional view of the outer strut;

FIG. 20 is a schematic view of a profile;

FIG. 21 is a second schematic view of a profile;

in the figure: 10. the first work piece, 111, third runner, 112, U-shaped notch, 12, second work piece, 121, first runner, 122, first stepped through hole, 123, second through hole, 124, second runner, 125, fourth through hole, 20, first stop portion, 21, inner sleeve, 22, plug shaft, 23, first nut, 24, cushion ring, 30, second stop portion, 31, first fixed arm, 32, second fixed arm, 33, second nut, 34, first movable arm, 341, third notch, 342, fourth notch, 343, arcuate groove, 35, second movable arm, 36, third nut, 37, movable press block, 371, arcuate block, 372, arcuate boss, 40, resilient support portion, 41, first slide, 42, handle, 43, limit hemispherical projection, 431, L-shaped bend, 432, lug, 44, resilient portion, 441, 441-1, second stepped through bore, 442, spring, 443, sliding support, 444, compression element, 445, rotatable support jaw, 445-1, ball, 445-2, extension arm, 445-3, 445-31, third workpiece, 445-32, fourth workpiece, 50, third stop, 60, tool portion, 61, tool holder body, 611, third through bore, 62, second slider, 63, first bearing, 64, oil nozzle, 65, tool coupling sleeve, 651, cylindrical sleeve, 651-1, long groove, 652, annular flange, 66, first compression ring, 67, second compression ring, 68, first seal, 69, second seal, 610, shank, 620, tool, 630, snap spring, 70, hand spring compression element, 71, support shaft, 72, first spring, 73, hand pressure block 731, pressure block, 732, handle, 74, 75. fourth nut, 80, rotating support, 81, first half support, 811, first half flange, 812, first half ring, 813, first arc-shaped connection plate, 814, first annular groove, 82, rotating inner support, 821, inner support arm, 821-1, arc-shaped connection plate, 821-2, tapered plate, 821-21, through slot, 821-22, tapered face, 822, support shaft section 823, second bearing, 824, spherical body, 90, outer support, 91, second half support, 911, second half flange, 912, second half ring, 913, second arc-shaped connection plate, 92, adjustable support, 921, threaded rod, 922, second support base, 923, third spring, 924, support plug, third pressure ring, 100, profile, 101, U-shaped block, 101-1, first notch, 102, tapered block, 103, arc-shaped block, 103-1, second notch, 104, intermediate connection block, 105, triangle block, 106.

Detailed Description

In order that the contents may be more readily understood, a further detailed description is provided below, according to specific embodiments, in conjunction with the accompanying drawings;

the boring fixture for the semiconductor special-shaped piece solves the technical problems that clamping is inconvenient, positioning is inaccurate, machining precision is difficult to unify in the related art, achieves the positive effects of relatively convenient clamping, relatively accurate positioning and relatively consistent machining precision, and has the following overall thinking:

as shown in fig. 1, 20, 21; a boring jig for a semiconductor profile, comprising:

a base 10, wherein the base 10 is provided with a first workpiece 11 and a second workpiece 12, the second workpiece 12 is vertically connected to the first workpiece 11, and the first workpiece 11 is connected with a workbench of a machine tool;

the first limiting part 20 is connected to the second workpiece 12 and is used for being inserted into the first through hole 106 on the special-shaped piece 100 to limit the special-shaped piece 100;

the second limiting part 30 is connected to the second workpiece 12 and is arranged at intervals from the first limiting part 20, and is used for limiting the middle connecting block 104 on the special-shaped piece 100 from right to left;

the elastic supporting part 40 is slidably connected to the first chute 121 on the second workpiece 12, and supports the middle connecting block 104 from left to right, and limits the middle connecting block 104 together with the second limiting part 30;

The third limiting part 50 is connected to the second workpiece 12, is arranged at intervals from the second limiting part 30, and limits the arc-shaped block 103 on the special-shaped piece 100;

and a cutter portion 60 connected to a spindle on a machine tool and slidably connected to the first workpiece 11 for boring the second notch 103-1 on the profile 100;

specifically, in practice, the seat body 10, the first stopper portion 20, the second stopper portion 30, the elastic supporting portion 40, the third stopper portion 50, and the cutter portion 60 are provided; the seat body 10 is provided with a first workpiece 11 and a second workpiece 12, the first workpiece 11 is connected with a workbench of a boring machine, the seat body 10 forms a reliable supporting structure, connection and arrangement of other parts are facilitated, the special-shaped piece 100 is positioned on the seat body 10 by the first limiting part 20, the second limiting part 30, the elastic supporting part 40 and the third limiting part 50, the cutter part 60 bores a second notch 103-1 on the special-shaped piece 100, positioning is relatively accurate, clamping is relatively convenient, and machining precision is relatively consistent;

another embodiment is:

as shown in fig. 1, 2, 3, 4, 5, and 13; in practice, the housing 10 has a first workpiece 11 and a second workpiece 12; the first workpiece 11 is of a square plate-shaped structure, four U-shaped notches 112 are formed in the edge of the first workpiece, and the base 10 is connected to a workbench of the boring machine through the U-shaped notches 112 and is convenient to install and detach;

The second workpiece 12 is of a square plate-shaped structure and is vertically welded with the first workpiece 11, so that a reliable supporting structure is formed, and other components can be connected and arranged conveniently;

the second workpiece 12 is further provided with a fourth through hole 125, the fourth through hole 125 is aligned with the second notch 103-1, when the cutter 620 on the cutter part 60 cuts the second notch 103-1, the fourth through hole 125 can avoid the cutter 620, the cutter 620 can not collide with the seat body 10, and the cutter is relatively safe and is beneficial to discharging scraps generated by cutting;

the seat body 10 is arranged, so that a reliable supporting structure is formed, and other components are connected and arranged conveniently;

another embodiment is:

as shown in fig. 1 and 2; in practice, the first limiting portion 20 includes: an inner sleeve 21 connected to the second workpiece 12 in the first stepped through hole 122; a plugging shaft 22 penetrating the inner sleeve 21, wherein two ends of the plugging shaft 22 protrude out of the first step through hole 122, and one end of the plugging shaft 22 is plugged with the first through hole 106; the first nut 23 is in threaded connection with the other end of the plug shaft 22 and locks the plug shaft 22; the backing ring body 24 is connected to the second workpiece 12, surrounds one end of the inserting shaft 22, is attached to the U-shaped block 101 on the special-shaped piece 100, and limits the position of the U-shaped block 101;

The inner sleeve 21 is of a T-shaped structure, and is tightly matched with the first step through hole 122, so that the limiting plug shaft 22 can be connected; the shape of the inserting shaft 22 is a ladder-shaped structure, after the inserting shaft is inserted into the first through hole 106, one end of the special-shaped piece 100 is limited, and the inserting mode is adopted, so that the special-shaped piece 100 is relatively convenient to assemble and disassemble; the first nut 23 is a hexagonal nut, is in threaded connection with the plug-in shaft 22, and locks the plug-in shaft 22; the cushion ring body 24 is of a circular-ring plate-shaped structure, is connected with the second workpiece 12 through an inner hexagon bolt piece, is attached to the U-shaped block 101 on the special-shaped piece 100, and is limited by the special-shaped piece 100;

the first limiting part 20 is arranged, one end of the special-shaped piece 100 is limited, and the special-shaped piece 100 is relatively convenient to assemble and disassemble;

another embodiment is:

as shown in fig. 1, 3, 6, 7 and 13; in practice, the second limiting portion 30 includes: a first fixed arm 31 connected to the second workpiece 12; a second fixing arm 32 penetrating at a second through hole 123 on the second workpiece 12, and both ends of the second fixing arm 32 protruding outside the second through hole 123; a second nut 33 connected to one end of the second fixing arm 32, for locking the second fixing arm 32; one end of the first movable arm 34 is movably connected with the first fixed arm 31, and the first movable arm 34 and the second workpiece 12 are arranged at intervals; the second movable arm 35 is movably connected with the other end of the second fixed arm 32 and is used for being in plug-in fit with the other end of the first movable arm 34; a third nut 36 connected to the second movable arm 35 and pressing the first movable arm 34; the movable pressing block 37 is connected to the middle position of the first movable arm 34 and is contacted with the middle connecting block 104;

The first fixing arm 31 has a shape of a T-shaped structure, and one end of the first fixing arm is in tight fit with the second workpiece 12 in a plugging manner; the second fixing arm 32 has a substantially T-shaped configuration and is inserted into the second through hole 123; the second nut 33 is a hexagonal nut, is in threaded connection with the second fixing arm 32, and locks the second fixing arm 32 and the second workpiece 12;

the first movable arm 34 has a cuboid structure, a third notch 341 is provided at the upper end of the first movable arm 34, the third notch 341 is movably connected with the first fixed arm 31, a fourth notch 342 is provided at the lower end of the first movable arm 342, the fourth notch 342 is in plug-in fit with the second movable arm 35, an arc-shaped groove 343 is provided at the middle position, and the arc-shaped groove 343 is movably connected with the movable pressing block 37; the third notch 341 is connected with the first fixed arm 31 through a pin shaft, so that the first movable arm 34 can rotate by taking the pin shaft as a rotation center;

the fourth notch 342 is in plug-in fit or separation with the second movable arm 35, so that the first movable arm 34 and the movable pressing block 37 can press or loosen the middle connecting block 104, and the operation is convenient;

one end of the second movable arm 35 is movably connected with the second fixed arm 32 through a pin shaft, and the other end of the second movable arm is in threaded connection with a third nut 36;

The third nut 36 is a hexagonal nut, when the first movable arm 34 is in plug-in fit with the second movable arm 35 through the fourth notch 342, the third nut 36 is locked, and the first movable arm 34 and the movable pressing block 37 press the middle connecting block 104; when the middle connecting block 104 is required to be loosened, the third nut 36 is loosened, the second movable arm 35 is rotated, the second movable arm 35 is separated from the fourth notch 342, and the first movable arm 34 is opened by taking the pin shaft as a rotation center;

the movable briquette 37 includes: the arc-shaped block 371 is movably connected to the first movable arm 34 through a pin shaft and is arranged at the arc-shaped groove 343; and two arc-shaped bosses 372 symmetrically connected to the arc-shaped blocks 371, protruding outside the arc-shaped grooves 343, for contacting with the intermediate connection block 104; the arc-shaped block 371 and the arc-shaped boss 372 are formed together, two arc-shaped bosses 372 are arranged and can reliably contact with the middle connecting block 104, and the arc-shaped block 371 can freely rotate at the arc-shaped groove 343 by taking the pin shaft as a rotation center, so that the flexibility of the movable pressing block 37 is better, and the middle connecting block 104 is favorable for pressing (because the middle connecting block 104 is a blank generally, the surface is relatively rough, and when a fixed structure is used for pressing the blank surface, the stress of the contact surface is uneven, and the pressing effect is influenced);

Another embodiment is:

as shown in fig. 1, 3, 8, 9, 10, and 13; in practice, the elastic support 40 comprises: the first sliding block 41 is slidably connected with the first sliding groove 121; the handle 42 is connected to one side of the first slider 41, and is used for shifting the first slider 41 to move along the first chute 121; the limiting guide piece 43 is connected to the first sliding block 41 and is close to the other side of the first sliding block 41, and the limiting guide piece 43 is in sliding connection with the second sliding groove 124 on the second workpiece 12; and an elastic part 44 connected to the other side of the first slider 41, supporting the intermediate connection block 104;

the first sliding block 41 has a ladder-shaped structure and slides along the first sliding groove 121; the first chute 121 is a waist-shaped long slot, and the section of the first chute is of a ladder-shaped structure;

the handle 42 has a shape of a [ -shaped structure, is welded with the first sliding block 41, is favorable for an operator to grasp and adjusts the position of the elastic supporting part 40;

the limit guide 43 includes: one end of the L-shaped bending part 431 is connected with the first sliding block 41 through a bolt; and a hemispherical protrusion 432 connected to the other end of the L-shaped bending member 431 and slidably connected to the second chute 124; the limiting guide piece 43 is arranged, so that the first sliding block 41 can be limited, the first sliding block 41 cannot be separated from the first sliding groove 121, and guiding can be formed, and the elastic supporting portion 40 cannot incline and is relatively smooth when sliding along the first sliding groove 121;

The second sliding groove 124 is a long groove, the section is an arc structure and is matched with the hemispherical convex block 432, and the second sliding groove 124 is arranged in parallel with the first sliding groove 121;

the elastic portion 44 includes: the first support seat 441 is connected to the first slider 41, and a second stepped through hole 441-1 is formed in the middle of the first support seat 441; a spring 442 disposed in the second stepped through hole 441-1; a sliding support 443 having one end disposed in the second stepped through hole 441-1, compressing the spring 442 and the other end protruding out of the second stepped through hole 441-1; a pressing member 444 coupled to the other end of the sliding support 443, the pressing member 444 having a first inner cavity therebetween; and a rotatable supporting claw 445, one end of which is movably connected with the first inner cavity, and the other end of which contacts the middle connecting block 104;

the first supporting seat 441 has a T-shaped structure, is connected with the first sliding block 41 through countersunk screws, is convenient to mount and dismount, and forms a reliable supporting structure;

the second stepped through hole 441-1 is advantageous in accommodating the spring 442 and the sliding support 443 such that the spring 442 has a telescopic space and the sliding support 443 has a moving space, producing an elastic supporting effect;

Spring 442 is a prior art cylindrical spring that, when compressed, forms a resilient support;

the sliding support 443 has a T-shaped structure, and can move along the second stepped through hole 441-1, so that the rotatable supporting claw 445 has a moving space, which is beneficial to pressing the middle connecting block 104 (because the middle connecting block 104 is generally a blank and has a relatively rough surface);

the pressing piece 444 is of a circular plate-shaped structure, is connected with the sliding support 443 through countersunk screws, is convenient to mount and dismount, and is beneficial to the limiting spherical piece 445-1, and the limiting spherical piece 445-1 can freely rotate;

the rotatable support claw 445 includes: the spherical element 445-1 is movably connected with the first inner cavity; an extension arm 445-2 connected to the ball 445-1 and disposed outside the first lumen; and a supporting claw 445-3 connected to the extension arm 445-2 to contact and support the intermediate connection block 104; extension arm 445-2 is integrally formed with ball 445-1; the supporting claw 445-3 is connected with the extension arm 445-2 through a countersunk bolt piece, so that the assembly and the disassembly are convenient;

the support claw 445-3 includes: a third workpiece 445-31 connected to the extension arm 445-2; the three fourth workpieces 445-32 are uniformly distributed on the third workpieces 445-31, the fourth workpieces 445-32 are bent from the joint with the third workpieces 445-31 to the direction of the middle connecting block 104, and a second inner cavity is formed between the fourth workpieces 445-32 and the third workpieces 445-31; the third workpiece 445-31 and the fourth workpiece 445-32 are integrally formed by stamping, after forming, the fourth workpiece 445-32 is approximately of an L-shaped bending structure, the third workpiece 445-31 is of a flat plate structure, and the third workpiece 445-31 is connected with the extension arm 445-2 through a countersunk bolt part;

The rotatable supporting claw 445 is arranged, a second inner cavity is formed on the supporting claw 445-3, a buffer space is formed, elastic support is generated, and the rotatable supporting claw 445 is good in flexibility due to the fact that the spherical part 445-1 can rotate, and is beneficial to compressing the middle connecting block 104 (because the middle connecting block 104 is a blank generally, the surface is relatively rough, when a fixed structure is used for compressing the blank surface, the contact surface is stressed unevenly, and during boring, the compressing part is loosened due to vibration, so that the compressing effect is influenced);

another embodiment is:

as shown in fig. 1 and 13; in implementation, the third limiting portion 50 is a stepped pin, and supports the arc-shaped block 103 from bottom to top;

the first limiting part 20 is spliced with the special-shaped piece 100 to form a first limiting point; the second limiting part 30 limits the special-shaped piece 100 from right to left to form a second limiting point; the elastic supporting part 40 supports the special-shaped piece 100 from left to right to form a third limiting point; one end of the third limiting part 50 is spliced with the second workpiece 12, and the other end supports the special-shaped piece 100, so that a fourth limiting point is formed; the first limiting points, the second limiting points and the third limiting points are arranged like a triangle, the limiting reliability is relatively good, vibration generated during boring processing can not cause loosening of a pressed part, the special-shaped piece 100 can not move in position, positioning is relatively accurate, clamping is relatively convenient, and processing precision is relatively consistent;

Another embodiment is:

as shown in fig. 1, 11, 12, 13; in practice, the cutter portion 60 includes: a holder body 61; two second sliding blocks 62 symmetrically connected to the bottom of the holder body 61 and slidably connected to a third sliding groove 111 on the first workpiece 11; a first bearing 63 connected to the holder body 61 at a third through hole 611; a nipple 64 connected to the holder body 61 for adding lubricating oil to the first bearing 63; a tool connecting sleeve 65 penetrating the first bearing 63 and connected to the first bearing 63, and both ends of the tool connecting sleeve 65 protruding outside the holder body 61; the first compression ring 66 is connected to one side of the tool rest body 61 and limits the tool connecting sleeve 65 and the first bearing 63; the second compression ring 67 is connected to the other side of the tool rest body 61 and limits the first bearing 63; a first seal 68 attached to the first press ring 66 and surrounding one end of the tool coupling sleeve 65; a second seal 69 connected to the second press ring 67 and surrounding the other end of the tool connecting sleeve 65; the knife handle 610 is penetrated at the middle position of the knife connecting sleeve 65 and is connected with the knife connecting sleeve 65 in a matching way, one end of the knife handle is used for connecting a knife 620, and the other end of the knife handle is connected with a main shaft on a machine tool; the two snap springs 630 are symmetrically connected to the tool handle 610 and limit the tool handle 610 and the tool connecting sleeve 65;

The holder body 61 has a substantially U-shaped configuration, thereby forming a reliable supporting structure, and being beneficial to connecting other components;

the second slide block 62 is welded with the tool rest body 61, and the section of the second slide block is of an isosceles trapezoid structure and is in sliding connection with the third slide groove 111; the shape of the third sliding groove 111 is matched with that of the second sliding block 62, so that the second sliding block 62 is beneficial to sliding along the third sliding groove 111;

the first bearing 63 is a structure commonly used in the art, such as: the sliding bearing is tightly matched at the third through hole 611, so that the tool connecting sleeve 65 is connected, and the tool connecting sleeve 65 can freely rotate; the oil nozzle 64 is a common structure in the prior art, is connected to the top of the holder body 61, and is used for adding lubricating oil to the first bearing 63, so that the rotation of the tool connecting sleeve 65 is relatively smooth;

the tool connecting sleeve 65 includes: a cylindrical sleeve 651 penetrating at the first bearing 63 and connected with the first bearing 63, and having both ends protruding outside the holder body 61, the cylindrical sleeve 651 having two long grooves 651-1 on an inner wall thereof; the annular flange 652 is connected to the outer circle of the cylindrical sleeve 651 and limits the cylindrical sleeve 651;

The first compression ring 66 is connected with the tool rest body 61 through an inner hexagon bolt member, and the limiting tool connecting sleeve 65 and the first bearing 63;

the second compression ring 67 is connected with the tool rest body 61 through an inner hexagonal bolt member to limit the first bearing 63;

the first seal 68 or the second seal 69 is a filler, an oil seal, or the like, and forms a seal to prevent the lubricant from overflowing;

the outer shape of the knife handle 610 is a long rod-shaped structure; one end of the knife handle 610 is provided with a fifth notch, the knife 620 is clamped in the fifth notch, a bolt piece is connected to the knife handle 610, and the knife 620 is pressed; the other end of the cutter handle 610 is a conical handle part which is connected with a main shaft of the boring machine; the middle part of the knife handle 610 is matched with the cylindrical sleeve 651 and the long groove 651-1; the spindle linkage tool handle 610 and the tool connecting sleeve 65 of the boring machine rotate together;

the cutter 620 is a common structure in the prior art, and is common knowledge and will not be described in detail;

the snap spring 630 is of a common structure in the prior art, and limits the knife handle 610 and the knife connecting sleeve 65, so that the knife handle 610 and the knife connecting sleeve 65 are connected into a whole, and the falling and separating probability is reduced;

the cutter part 60 is arranged, is connected with the third chute 111 in a sliding way through the second sliding block 62, is connected with the main shaft of the boring machine through the cutter handle 610, and is connected with the main shaft of the boring machine, the cutter 610 and the cutter connecting sleeve 65 are linked to rotate together during boring, the cutter 620 rotates, the special-shaped piece 100 is positioned on the seat 10 by the first limiting part 20, the second limiting part 30, the elastic supporting part 40 and the third limiting part 50, and along with the moving position of the boring machine workbench, the special-shaped piece 100 slowly approaches the cutter 620, and at the moment, the cutter part 60 slides along the third chute 111, and the cutter 620 is used for boring the second notch 103-1 on the special-shaped piece 100, so that the aim of processing the second notch 103-1 is fulfilled;

Another embodiment is:

as shown in fig. 13, 14, 20, and 21; in practice, the method further comprises the following steps: a hand-pulled elastic pressing member 70, one end of which is connected to the second workpiece 12, and the other end of which passes through the first notch 101-1 and presses the U-shaped block 101;

the hand-pulled elastic pressing member 70 includes: one end of the supporting shaft 71 is connected with the second workpiece 12, and the other end of the supporting shaft penetrates out of the first notch 101-1; a first spring 72 sleeved on the support shaft 71; a hand-pulling pressing block 73, one end of which is penetrated through the supporting shaft 71, and the other end of which is arranged at intervals with the supporting shaft 71; a second spring 74 fitted over the support shaft 71; the fourth nut 75 is connected to the support shaft 71 and limits the first spring 72, the hand-pulling pressing block 73 and the second spring 74, and the first spring 72 and the second spring 74 are in a compressed state;

the supporting shaft 71 is in a ladder-shaped structure, one end of the supporting shaft is connected with the second workpiece 12 by penetrating a countersunk bolt, so that a reliable supporting structure is formed;

the first spring 72 and the second spring 74 are cylindrical springs in the prior art for generating elasticity;

the hand pulling press block 73 includes: a pressing block 731 fitted around the support shaft 71 and disposed between the first spring 72 and the second spring 74; and a handle 732 having one end connected to the press body 731 and the other end remote from the fourth nut 75; the pressing block piece 731 is in a rectangular block structure, and the middle part of the pressing block piece is sleeved on the supporting shaft 71 through a fourth through hole; the shape of the handle 732 is approximately a 'shape' structure, and the handle 732 is welded with the pressing block 731, so that the handle 732 is convenient for an operator to grasp;

The fourth nut 75 is a hexagonal nut, and is in threaded connection with the other end of the support shaft 71 to form a block, so that the first spring 72 and the second spring 74 are in a compressed state and have elasticity;

when the U-shaped block 101 is required to be pressed, an operator pulls the hand-pulling pressing block 73, the hand-pulling pressing block 73 moves along the supporting shaft 71, the second spring 74 is compressed, the first spring 72 rebounds, when the position of the hand-pulling pressing block 73 protrudes out of the U-shaped block 101, the hand-pulling pressing block 73 is rotated, and when the pressing block body 731 can press the U-shaped block 101, the hand-pulling pressing block 73 is loosened, so that the purpose of pressing is achieved;

the purpose of the hand-pulled elastic pressing piece 70 is that as the first limiting part 20 and the special-shaped piece 100 are in plug-in connection, the fit between the first limiting part 20 and the special-shaped piece 100 is too tight, the mounting and the dismounting are inconvenient, the fit is too loose, the positioning accuracy is poor, and therefore, a tolerance of 0.03-0.05mm is generally reserved, however, the plug-in connection is carried out for many times, so that abrasion can occur at the plug-in connection, in order to reduce the replacement frequency of the first limiting part 20, the hand-pulled elastic pressing piece 70 is additionally arranged, the positioning accuracy is ensured, and the hand-pulled elastic pressing piece 70 adopts manual operation, so that the hand-pulled elastic pressing piece has better flexibility, relatively simple structure and relatively convenient operation compared with pneumatic operation and the like;

Another embodiment is:

as shown in fig. 13, 15, 16 and 17; in practice, the method further comprises the following steps: a rotary support 80 connected to the tool part 60, one end of the rotary support 80 being connected to the holder body 61 and surrounding the first pressing ring 66, a first portion of the other end being connected to the tool shank 610 and rotating together with the tool shank 610, a second portion forming a support guide, the tool shank 610 and the first portion being rotatably moved along the second portion, the rotary support 80 being for supporting the tool shank 610;

the center line of the rotary support 80 and the center line of the tool handle 610 are on the same straight line, so that the concentricity is good, and reliable support can be formed;

the rotary support 80 includes: the two first half supporting frames 81 are combined to form an annular structure, the annular structure surrounds the first pressing ring 66 and the tool shank 610, one end of each first half supporting frame 81 is connected with the tool rest body 61, and the other ends of the first half supporting frames are connected through socket head cap bolts; and three rotary inner supports 82 (which are the first parts) uniformly distributed on the tool handle 610 and move along the first annular groove 814 on the first half supporting frame 81;

The first half supporting frame 81 includes: a first half flange 811 connected to the holder block 61; a first half ring body 812 (the second part is formed by combining two first half ring bodies 812), and is arranged at intervals with the first half flange 811, wherein the central line of the first half ring body 812 and the central line of the first half flange 811 are on the same straight line; and two first arc-shaped connection plates 813, which are arranged at intervals and connected between the first half flange 811 and the first half ring body 812;

the first half flange 811 is connected with the tool rest body 61 through the socket head cap bolt after being inserted through the positioning pin, so that the assembly and the disassembly are convenient;

the first half ring body 812 is welded with the first arc-shaped connecting plate 813; welding between the first arc-shaped connecting plate 813 and the first half flange 811;

the first half ring bodies 812 are connected through the inner hexagon bolt pieces after being inserted through the positioning pins, and after being connected and combined, a circular ring structure is formed, and a guide is formed through the first annular groove 814, so that the rotating inner support 82 can rotate along the rotating direction;

the rotating inner support 82 includes: two inner supporting arms 821 are symmetrically arranged at intervals, one end of each inner supporting arm 821 is connected to the knife handle 610, and the other end extends towards the direction of the first annular groove 814; a support shaft segment 822 connected to the other end of the inner arm 821; two second bearings 823 symmetrically connected to the support shaft segment 822; and a spherical body 824 attached to the second bearing 823 in contact with the first annular groove 814;

The inner stay 821 includes: an arc-shaped connecting plate 821-1 connected with the knife handle 610; and a tapered plate 821-2, one end of which is connected with the arc-shaped connection plate 821-1, the other end of which is connected with the support shaft segment 822, and the middle part of the tapered plate 821-2 is provided with a through groove 821-21, and tapered surfaces 821-22 are symmetrically arranged on the edge; the arc connection plate 821-1 is welded with the conical plate 821-2, and the arc connection plate 821-1 is connected with the knife handle 610 through the socket head cap screw after being inserted through the locating pin, so that the installation and the disassembly are convenient;

through grooves 821-21 are formed, so that the weight of the tapered plate 821-2 can be reduced, and the rotation resistance is reduced;

the shape of the conical surface 821-22 is approximately of a 'shape' structure, so that wind resistance is reduced, and the rotation is smoother;

the support shaft segment 822 is a stepped shaft and is in tight fit with the inner support arm 821 in an inserting manner;

the second bearing 823 is a common structure in the art, such as: the deep groove ball bearing is connected to the support shaft segment 822, so that the spherical body 824 can be well connected, and the spherical body 824 can smoothly rotate;

the spherical body 824 is connected to the second bearing 823, and can smoothly rotate, and the spherical body 824 rolls along the rolling position of the first annular groove 814, so that the friction resistance is relatively small;

The purpose of the rotary support 80 is that the spindle of the boring machine is linked with the tool shank 610 and the tool connecting sleeve 65 to rotate together, and when in rotation, the length of the tool shank 610 is long, at least sixty centimeters is common, and vibration is generated during boring processing, so that the tool shank 610 deflects, the processing precision is affected, the support is formed through the rotary support 80, the deflection amplitude can be reduced, and the processing precision is ensured;

another embodiment is:

as shown in fig. 13, 18, 19; in practice, the method further comprises the following steps: an outer support portion 90 connected to the cutter portion 60 and disposed opposite to the rotary support 80, wherein one end of the outer support portion 90 is connected to the holder body 61, surrounds the second pressing ring 67, and supports the cutter handle 610 from outside to inside;

the center line of the outer support portion 90 and the center line of the tool handle 610 are on the same straight line, so that the concentricity is good, and reliable support can be formed;

the outer stay 90 includes: the two second half supporting frames 91 are combined to form an annular structure, the annular structure surrounds the second pressing ring 67 and the tool shank 610, one end of the second half supporting frame 91 is connected with the tool rest body 61, and the other end of the second half supporting frame 91 is connected with the tool rest body through an inner hexagon bolt; the three adjustable supports 92 are uniformly distributed on the other end of the second half supporting frame 91 and are used for supporting the cutter handle 610 from outside to inside;

The second half supporting frame 91 includes: a second half flange 911 connected to the holder body 61; the second half ring body 912 is arranged at intervals with the second half flange 911, and the central line of the second half ring body 912 and the central line of the second half flange 911 are on the same straight line; and two second arc-shaped connection plates 913, which are arranged at intervals and are connected between the second half flange 911 and the second half ring 912;

the second half flange 911 is connected with the tool rest body 61 through the socket head cap bolt after being inserted through the positioning pin, so that the assembly and the disassembly are convenient;

the second half ring body 912 is welded with the second arc-shaped connecting plate 913; the second arc-shaped connecting plate 913 is welded with the second half flange 911;

the second half ring bodies 912 are connected through socket head cap bolts after being inserted through positioning pins, and after being connected and combined, a circular ring structure is formed;

the adjustable support 92 includes: a threaded rod 921 in threaded connection with the second half ring 912; a second support seat 922 connected to the threaded rod 921, wherein a hollow space is formed in the second support seat 922; a third spring 923 disposed in the hollow space; a supporting plug 924 having one end disposed in the hollow space and contacting the third spring 923 and the other end protruding out of the hollow space and contacting the handle 610; and a third compression ring 925 connected to the second support base 922, limiting one end of the support top 924, and compressing the third spring 923;

The threaded rod 921 is in threaded connection with a reserved threaded through hole in the second half ring body 912, and the position of the threaded rod 921 can be adjusted by rotating the threaded rod 921 to move the threaded rod 921 along the second half ring body 912;

the second supporting seat 922 is of a T-shaped structure, is connected with the threaded rod 921 through a bolt, is convenient to mount and dismount, and forms a reliable supporting structure;

the hollow space is a cylindrical space, which is favorable for accommodating the third spring 923 and accommodating part of the supporting top 924;

the third spring 923 is a cylindrical spring with elasticity, so that the position of the supporting top 924 is adjusted;

the supporting top 924 has a T-shaped structure, and the contact part with the knife handle 610 is a spherical surface, so that the knife handle 610 can be supported, and meanwhile, the friction resistance is relatively small;

the third compression ring 925 is of a circular annular plate structure, is connected with the second supporting seat 922 through a bolt, and is used for limiting and supporting the top 924, and the top 924 is always contacted with the knife handle 610 under the action of the third spring 923, so that reliable support is formed;

the purpose of the outer support part 90 is that the spindle linkage tool handle 610 and the tool connecting sleeve 65 of the boring machine rotate together, when the spindle linkage tool handle 610 rotates, the length of the tool handle 610 is long, at least sixty centimeters is common, and vibration during boring processing causes deflection of the tool handle 610, and the support is formed through the rotary support piece 80, so that the deflection amplitude can be reduced, the processing precision is ensured, compared with the rotary support piece 80, the outer support part 90 is a flexible support, the rotary support piece 80 is a hard support, and the support reliability is better due to the combination of the two;

Regarding the profile:

as shown in fig. 1, 13, 20, 21; the profile 100 includes: a U-shaped block 101, wherein one end of the U-shaped block 101 is provided with a first notch 101-1; the conical block 102 is connected to one side of the U-shaped block 101, is close to the other end of the U-shaped block 101, is arranged at intervals from the first notch 101-1, and is provided with a first through hole 106 on the conical block 102 and the U-shaped block 101; the arc-shaped block 103, one end of the arc-shaped block 103 is provided with a second notch 103-1; a middle connection block 104 connecting the U-shaped block 101 and the arc-shaped block 103; and a triangle block 105 connected between the U-shaped block 101, the cone block 102 and the intermediate connection block 104; the profile 100 is a cast blank; the second notch 103-1 is in a semicircular structure;

the working principle is as follows: the special-shaped piece 100 is positioned on the seat body 10 by the first limiting part 20, the second limiting part 30, the elastic supporting part 40 and the third limiting part 50, the cutter part 60 is in sliding connection with the third sliding groove 111 through the second sliding block 62, the cutter handle 610 is connected with a main shaft of the boring machine, the main shaft of the boring machine is linked with the cutter handle 610 and the cutter connecting sleeve 65 to rotate together during boring, the cutter 620 rotates, the special-shaped piece 100 slowly approaches the cutter 620 along with the moving position of the boring machine working table, at the moment, the cutter part 60 slides along the third sliding groove 111, the cutter 620 bores the second notch 103-1 on the special-shaped piece 100, the purpose of processing the second notch 103-1 is realized, positioning is relatively accurate, clamping is relatively convenient, and processing precision is relatively consistent;

In the description, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate orientations or positional relationships based on the positional relationships described in the drawings, and are merely for convenience of description or simplification of description, and do not indicate a specific orientation that must be possessed; the operation process described in the embodiment is not an absolute use step, and can be adjusted correspondingly in actual use;

unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art; the terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, and likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one of the components, and the terms "a" or "an" and the like, as appropriate for the context of the embodiments;

the above description is only of the preferred embodiments, but the scope of protection is not limited to the above description, and any equivalent or modified embodiments according to the technical scheme and the inventive concept disclosed by those skilled in the art should be covered in the scope of protection.

Claims

1. A boring jig for a semiconductor shaped piece, comprising:

the cutter part is connected with a main shaft on the machine tool and is connected to the first workpiece in a sliding manner and is used for boring a second notch on the special-shaped piece;

wherein, first spacing portion includes: an inner sleeve connected in the first stepped through hole on the second workpiece; the inserting shaft penetrates through the inner sleeve, two ends of the inserting shaft protrude out of the first stepped through hole, and one end of the inserting shaft is inserted into the first through hole; the first nut is in threaded connection with the other end of the plug-in shaft and locks the plug-in shaft; and the backing ring body is connected to the second workpiece, surrounds one end of the inserting shaft, is attached to the U-shaped block on the special-shaped piece, and limits the U-shaped block.

2. The boring jig for a semiconductor profile according to claim 1, wherein: the second limiting portion includes: the first fixed arm is connected to the second workpiece; the second fixing arm penetrates through a second through hole on the second workpiece, and two ends of the second fixing arm protrude out of the second through hole; the second nut is connected to one end of the second fixing arm and locks the second fixing arm; one end of the first movable arm is movably connected with the first fixed arm, and the first movable arm and the second workpiece are arranged at intervals; the second movable arm is movably connected with the other end of the second fixed arm and is used for being in plug-in fit with the other end of the first movable arm; the third nut is connected to the second movable arm and presses the first movable arm; and the movable pressing block is connected to the middle position of the first movable arm and is contacted with the middle connecting block.

3. A boring jig for a semiconductor shaped article according to claim 2, wherein: the appearance of the first movable arm is of a cuboid structure, a third notch is formed in the upper end of the first movable arm, the third notch is movably connected with the first fixed arm, a fourth notch is formed in the lower end of the first movable arm, the fourth notch is in plug-in fit with the second movable arm, an arc-shaped groove is formed in the middle of the first movable arm, and the arc-shaped groove is movably connected with the movable pressing block;

4. A boring jig for a semiconductor shaped article according to claim 3, wherein: the elastic support portion includes: the first sliding block is in sliding connection with the first sliding groove; the handle is connected to one side of the first sliding block and used for poking the first sliding block to move along the first sliding groove; the limiting guide piece is connected to the first sliding block and is close to the other side of the first sliding block, and the limiting guide piece is in sliding connection with a second sliding groove on the second workpiece; and the elastic part is connected to the other side of the first sliding block and supports the middle connecting block.

5. The boring jig for a semiconductor profile according to claim 4, wherein: the elastic portion includes: the first supporting seat is connected to the first sliding block, and a second step through hole is formed in the middle of the first supporting seat; the spring is arranged in the second step through hole; one end of the sliding support is arranged in the second step through hole to compress the spring, and the other end of the sliding support protrudes out of the second step through hole; a compression element connected to the other end of the sliding support, the compression element and the sliding support having a first cavity therebetween; and one end of the rotatable supporting claw part is movably connected with the first inner cavity, and the other end of the rotatable supporting claw part is contacted with the middle connecting block.

6. The boring jig for a semiconductor profile according to claim 5, wherein: the rotatable supporting claw portion includes: the spherical part is movably connected with the first inner cavity; an extension arm connected to the ball member and disposed outside the first lumen; and the supporting claw is connected to the extension arm and contacts and supports the middle connecting block.

7. The boring jig for a semiconductor profile according to claim 6, wherein: the support claw includes: the third workpiece is connected with the extension arm; and three fourth workpieces are uniformly distributed on the third workpiece, the fourth workpieces are bent from the joint of the fourth workpieces and the third workpiece to the direction of the middle connecting block, and a second inner cavity is formed between the fourth workpieces and the third workpiece.

8. The boring jig for a semiconductor profile according to claim 7, wherein: the third limiting part is a stepped pin shaft and supports the arc-shaped block from bottom to top.

9. The boring jig for a semiconductor profile according to claim 8, wherein: the cutter portion includes: a holder body; the two second sliding blocks are symmetrically connected to the bottom of the tool rest body and are in sliding connection with a third sliding groove on the first workpiece; the first bearing is connected to the third through hole on the tool rest body; the oil nozzle is connected to the tool rest body and used for adding lubricating oil to the first bearing; the cutter connecting sleeve penetrates through the first bearing and is connected with the first bearing, and two ends of the cutter connecting sleeve protrude out of the cutter holder body; the first compression ring is connected to one side of the tool rest body and used for limiting the tool connecting sleeve and the first bearing; the second compression ring is connected to the other side of the tool rest body and limits the first bearing; the first sealing piece is connected to the first compression ring and surrounds one end of the cutter connecting sleeve; the second sealing piece is connected to the second compression ring and surrounds the other end of the cutter connecting sleeve; the middle position of the knife handle penetrates through the knife connecting sleeve and is connected with the knife connecting sleeve in a matching way, one end of the knife handle is used for connecting a knife, and the other end of the knife handle is connected with a main shaft on the machine tool; and the two clamp springs are symmetrically connected to the cutter handle and limit the cutter handle and the cutter connecting sleeve.