CN114871894A

CN114871894A - End mill of linear probe

Info

Publication number: CN114871894A
Application number: CN202210800175.5A
Authority: CN
Inventors: 钱晓晨; 郭爱民; 缪拥正
Original assignee: Suzhou Helin Micro Technology Co ltd
Current assignee: Suzhou Helin Micro Technology Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-08-09
Anticipated expiration: 2042-07-08
Also published as: CN114871894B

Abstract

The invention discloses an end grinding machine for a linear probe, which can grind two ends of a needle section; the end grinding module comprises an end grinding frame, two clamping frames which are distributed up and down are arranged in the end grinding frame, and a needle section to be processed is positioned between the two clamping frames; different end grinding mechanisms are respectively arranged on one clamping frame and positioned at two ends of the needle section, and the end grinding mechanisms are used for grinding the end part of the needle section; the end grinding mechanism comprises a first end grinding plate, a second end grinding plate and a third end grinding plate, the first end grinding plate is assembled with an end grinding pipe, one end of the end grinding pipe penetrates through the pipe sleeve and then penetrates out of the third end grinding plate, the pipe sleeve is assembled with the second end grinding plate and the third end grinding plate, and the end grinding pipe is assembled with the pipe sleeve; the end grinding pipe is provided with an end grinding plug which is used for grinding the end part of the needle section; the second end grinding plate and the third end grinding plate are also respectively assembled with an end grinding threaded sleeve, and the end grinding threaded sleeve is sleeved on the third end grinding shaft; the first end grinding plate and the end grinding threaded sleeve are assembled directly or indirectly through thread screwing.

Description

End mill of linear probe

Technical Field

The invention relates to the technical field of production of linear probes, in particular to an end grinding machine for a linear probe.

Background

The linear probe is mainly used for gene detection, the diameter of the linear probe is generally not more than 0.05mm, and when the linear probe is used, the tip of the linear probe punctures an oxide layer of a chip to meet the electrical performance test requirement of the chip. Because the linear probe is very thin, clamping is very difficult, and the requirement on machining precision is also very high.

At present, a metal rod is mainly used for drawing wires with small diameter in China, and then the wires are coiled and collected. The wire produces stress in the production process, the coiled wire is bent in the unfolding process, and the straightness cannot meet the requirement of a thread needle, so that the coiled wire needs to be straightened again and cut into the thread needle with a certain length and size, and then one end of the thread needle is sharpened, and the other end of the thread needle is rounded or not processed.

At present, the wire winding is straightened usually by adopting a rotating straightening mode, but the cut surface treated by the straightening mode can generate burrs, and the cut surface can deform, so that great defects are caused for subsequent processing. Moreover, the diameter of the probe is generally not more than 0.05mm, and the probe is thinner than hair, so that the clamping is difficult and the processing difficulty is high. Therefore, the notch part must be ground before subsequent processing, otherwise the defective rate is too high, and the manufacturing cost is very high.

Disclosure of Invention

In view of the above-mentioned defects of the prior art, the present invention provides an end grinder for linear probes, which can grind both ends of a needle segment to eliminate burrs and deformed portions of a cut surface.

In order to achieve the purpose, the invention provides an end grinding machine which comprises an end grinding module, wherein the end grinding module comprises an end grinding frame, two clamping frames which are vertically distributed are arranged in the end grinding frame, and a needle section to be processed is positioned between the two clamping frames; different end grinding mechanisms are respectively arranged on one clamping frame and positioned at two ends of the needle section, and the end grinding mechanisms are used for grinding the end part of the needle section; the end grinding mechanism comprises a first end grinding plate, a second end grinding plate and a third end grinding plate, and the first end grinding plate, the second end grinding plate and the third end grinding plate are all arranged on one clamping frame;

the first end grinding plate is rotatably assembled with an end grinding pipe, one end of the end grinding pipe penetrates through the pipe sleeve and then penetrates out of the third end grinding plate, the pipe sleeve is rotatably assembled with the second end grinding plate and the third end grinding plate, and the end grinding pipe is assembled with the pipe sleeve; the end grinding pipe is provided with an end grinding plug, and the end grinding plug is used for grinding the end part of the needle section;

the second end grinding plate and the third end grinding plate are respectively and rotatably assembled with an end grinding threaded sleeve, and the end grinding threaded sleeve is sleeved on the third end grinding shaft; the first end grinding plate and the end grinding threaded sleeve are assembled directly or indirectly through threaded screwing.

As a further improvement of the invention, a hollow end grinding inner hole is formed in the end grinding tube, a fixing ring is installed in the end grinding inner hole, an end grinding plug is installed in the end grinding inner hole in a clamping manner, the end grinding plug is assembled with one end of an end grinding sliding shaft, the other end of the end grinding sliding shaft is sleeved with a third end grinding spring and then penetrates through the fixing ring, and the third end grinding spring applies a thrust force far away from the fixing ring to the end grinding plug.

As a further improvement of the invention, an end grinding worm wheel is mounted on the third end grinding shaft, the end grinding worm wheel is in meshing transmission with an end grinding worm, the end grinding worm is arranged on the fourth end grinding shaft, and the fourth end grinding shaft is connected with an output shaft of a second end grinding motor through a second end grinding belt to form a belt transmission mechanism;

the first end grinding belt bypasses the pipe sleeve and the first end grinding shaft to form a belt transmission mechanism, the first end grinding shaft is rotatably assembled with the second end grinding plate and the third end grinding plate, a first end grinding bevel gear is further mounted on the first end grinding shaft, the first end grinding bevel gear is in meshing transmission with the second end grinding bevel gear, the second end grinding bevel gear is mounted on the second end grinding shaft, and the second end grinding shaft is connected with an output shaft of the first end grinding motor; the second end grinding shaft, the third end grinding shaft and the fourth end grinding shaft are rotatably arranged on the corresponding clamping frames; the first end grinding motor and the second end grinding motor are both arranged on the same clamping frame.

As a further improvement of the invention, each clamping rack is respectively provided with a bracket and a clamping rack, the clamping racks of the two clamping racks are respectively meshed with two sides of a clamping gear for transmission, the clamping gear is sleeved on a clamping gear shaft, and the clamping gear shaft is arranged on an end grinding rack;

the two clamping frames respectively penetrate through the clamping guide shafts and are assembled with the clamping guide shafts in a sliding mode, and the clamping guide shafts are installed on the end grinding frame; the clamping frame positioned above the end grinding frame is also assembled with a clamping cylinder shaft, one end of the clamping cylinder shaft is arranged in the clamping cylinder, and the clamping cylinder is arranged on the end grinding frame;

the first end grinding plate is provided with a screw block chute, the screw block chute is clamped with a screw block and is assembled in a sliding mode, the first end grinding plate is also provided with a spring frame at the position of the screw block chute, a spring pin is arranged on the spring frame, the spring pin is assembled with one end of a second end grinding spring, the other end of the second end grinding spring is tightly pressed or assembled with the screw block, and the second end grinding spring applies thrust far away from the spring pin to the screw block; the screw block is provided with a thread which can be screwed with the end grinding screw sleeve;

a screw block groove is formed in the inner side of the screw block, and a screw block inclined plane is arranged in the screw block groove; the wedge-shaped block is arranged in the screw block groove and assembled with the screw block groove in a sliding mode, a wedge-shaped inclined surface is arranged on the wedge-shaped block, and the wedge-shaped inclined surface is attached to the screw block inclined surface;

the wedge-shaped block is arranged on the end grinding supporting plate, the end grinding supporting plate is arranged on the end grinding adjusting rod, one end of the end grinding adjusting rod penetrates through the corresponding clamping frame and then is assembled with the end grinding adjusting part, the end grinding adjusting rod is clamped with the corresponding clamping frame and is assembled in a sliding mode, and the end grinding adjusting part is provided with a second short pin; the end mill adjusting part is slidably sleeved on an end mill guide shaft, the end mill guide shaft is installed on a corresponding clamping frame, a first end mill spring is sleeved on a part, located between the clamping frame and the end mill adjusting part, of the end mill guide shaft, and the first end mill spring applies thrust far away from the clamping frame to the end mill adjusting part;

the second short pin is installed in the groove of linkage adjusting rod one end and is assembled with the groove in a sliding mode, the two ends of the linkage adjusting rod are provided with grooves, the middle portion of each groove is hinged to the end grinding shaft plate, the end grinding shaft plate is installed on the clamping frame corresponding to the end grinding shaft plate, the groove of the other end of the linkage adjusting rod is assembled with the first short pin in a clamping and sliding mode, the first short pin is installed on the pin boss, the pin boss is installed on the linkage frame, the linkage frame is installed on the corresponding clamping frame in a clamping and sliding mode, the end portion of the linkage frame is right opposite to the end portion of the clamping rack on the other clamping frame, and in the process of grinding the clamping needle section of the clamping mechanism at the end, the end portion of the clamping rack on the other clamping frame can gradually extrude the linkage frame.

As a further improvement of the invention, the two clamping frames are also provided with an end clamping mechanism for clamping the needle section, the end clamping mechanism comprises an upper clamping seat and a lower clamping seat, the upper clamping seat and the lower clamping seat are respectively arranged on the two clamping frames, and the upper clamping seat and the lower clamping seat are respectively provided with a first rubber mat and a second rubber mat which have elasticity; two upper clamping seats are respectively arranged on two sides of the first rubber mat, and the two upper clamping seats are clamped with the clamping sliding grooves and are assembled in a sliding manner; the upper clamping seat is also provided with a clamping seat roller and an upper clamping seat inclined plane, and the clamping seat roller is rotatably arranged on the upper clamping seat and is tightly pressed with the bracket; the lower clamping seat is provided with a lower clamping seat block, and the lower clamping seat block is provided with a lower clamping seat inclined plane which can be attached to the upper clamping seat inclined plane.

As a further improvement of the invention, an upper binding seat and a lower binding seat are respectively added on an end grinding clamping mechanism close to the end part of the needle section, the upper binding seat and the lower binding seat are respectively arranged on two clamping frames, a third rubber pad and a fourth rubber pad are respectively arranged on the upper binding seat and the lower binding seat, an upper semicircular piece and an upper binding block are also arranged on the upper binding seat, and an upper binding inclined plane is arranged on the upper binding block; a lower extrusion part is arranged on the fourth rubber mat, an extrusion strip is arranged on the outer side of the lower extrusion part, and a lower binding surface capable of being attached to the upper binding inclined surface is arranged on the extrusion strip; the third rubber pad and the fourth rubber pad are both elastic, and the third rubber pad is provided with an upper extrusion part attached to the lower extrusion part;

the end face of the extrusion strip is attached to the end face of the lower binding seat and assembled in a sliding mode, a lower semicircular piece is arranged on the lower binding seat, and a complete circular ring is formed after the lower semicircular piece and the upper semicircular piece are assembled; when the upper binding seat and the lower binding seat move to the needle section to clamp the needle section, the upper binding inclined plane is gradually attached to the lower binding surface, the end part of the upper extrusion part enters the inner side of the extrusion strip, and then the upper binding inclined plane and the lower binding surface are gradually matched to apply pressure to the extrusion strip to extrude the needle section, so that the upper extrusion part and the lower extrusion part are all pressed to the needle section, and meanwhile, the needle section is positioned.

As a further improvement of the invention, the needle sharpening machine further comprises a transferring module, a centering module and an end grinding conveying module, wherein the transferring module is used for transferring the needle section output by the cutting machine to the end grinding conveying module, the end grinding conveying module clamps the needle section through an end grinding conveying seat, and then the conveying needle section sequentially passes through the centering module and the end grinding module and then is input into the sharpening machine; the centering module is used for synchronously extruding two ends of the needle section so as to center the two ends of the needle section relative to the end grinding module;

the transfer module comprises a transfer frame, wherein a transfer arc plate, a transfer rotating shaft, a transfer wheel and a transfer motor are arranged on the transfer frame, the transfer wheel is coaxially arranged on the transfer rotating shaft, a plurality of transfer notches which are uniformly arrayed along the circumference of the transfer wheel are also arranged on the edge of the transfer wheel, and the transfer notches are used for being clamped with the needle sections to convey the needle sections; the transfer wheel is coaxially assembled with the inner side of the transfer arc plate, and the outer wall of the hour hand section is tightly attached to the inner side of the transfer arc plate; one end of the transfer rotating shaft is connected with an output shaft of the transfer motor;

still install helping hand motor on the transfer frame, install the helping hand wheel on helping hand motor's the output shaft, the helping hand wheel compresses tightly with the needle section that gets into the inboard of transferring the arc board, then utilizes the roll of helping hand wheel to order about the needle section and get into the inboard of transferring the arc board completely so that follow-up the transport of transferring the wheel.

As a further improvement of the invention, the centering module comprises a centering frame, two centering chutes are arranged on the inner side wall of the centering frame, each centering chute is respectively clamped with one centering slide rail and is assembled in a sliding manner, the two centering slide rails are respectively arranged on a centering piece, the centering piece is also provided with a centering push plate and a centering rack, the two centering push plates are used for pushing two ends of a needle section to realize centering, the two centering racks are respectively in meshing transmission with two sides of a centering gear, the centering gear is sleeved on a centering gear shaft, and the centering gear shaft is arranged on the centering frame;

the two centering push plates are also respectively sleeved on the same centering screw rod, the centering screw rod is arranged on the centering frame, and one end of the centering screw rod is connected with an output shaft of the centering motor; one of the centering push plates is assembled with the centering screw rod in a screwing mode through threads, and the other centering push plate is sleeved on the centering screw rod in an axial sliding mode.

As a further improvement of the invention, the end grinding conveying module comprises two end grinding conveying frames, a root end grinding conveying shaft is respectively arranged on the two end grinding conveying frames, the end grinding conveying belt bypasses the two end grinding conveying shafts and forms a belt transmission mechanism, and one of the root end grinding conveying shafts is connected with an output shaft of the end grinding conveying motor through an end grinding driving belt and forms the belt transmission mechanism;

a plurality of end grinding conveying seats are equidistantly arranged on the end grinding conveying belt along the running direction of the end grinding conveying belt, each end grinding conveying seat comprises an end grinding fixing part arranged on the end grinding conveying belt, an end grinding sealing part hinged with the end grinding fixing part through an end grinding pin, and an end grinding torsion spring sleeved on the end grinding pin and used for applying a torque force to the end grinding fixing part to the end grinding sealing part; the inner side of the end mill fixing part is provided with an end mill conveying groove facing the opening of the end mill sealing part, and the needle section is arranged in the end mill conveying groove and is tightly pressed in the end mill conveying groove through the end mill sealing part;

the end mill conveying frame is also provided with an end mill unlocking disc, and an end mill unlocking surface is arranged on the end mill unlocking disc; in an initial state, the bottom of the end mill sealing part is lower than the end mill unlocking surface;

when the end grinds the transport seat and removes to end mill unblock dish department, the end grinds the bottom of sealing and can compress tightly with the side of end mill unblock dish, thereby make it unable to pass through, at this moment along with the continuation removal of end mill transport seat, can make the end grind the bottom that unblock dish extrusion end ground sealing, make the end grind the torsion rotation that the end ground the torsional spring of sealing overcome, the side and the end that the end ground the sealing grind the unblock face laminating, the open end that the transport tank was ground to the end this moment is opened, the transport tank is ground to needle section output.

As a further improvement of the invention, different retaining assemblies are respectively arranged on the upper binding seat and the lower binding seat, each retaining assembly comprises a retaining cover, a retaining ring, a yielding sleeve and a retaining spring, the retaining cover is arranged on the upper binding seat or the lower binding seat, the retaining rings are clamped and slidably arranged in the retaining covers, one end of each retaining spring is assembled with one end of each yielding sleeve, the other end of each retaining spring is assembled with the upper binding seat or the lower binding seat, and the retaining springs apply resistance force to the yielding sleeves to prevent the yielding sleeves from moving towards the upper binding seats or the lower binding seats;

the other end of the abdicating sleeve is provided with a retaining ring, the retaining ring is provided with a semicircular groove which can be clamped with the needle section and can be assembled in a sliding manner, and the abdicating sleeve is also respectively clamped with the outer walls of the upper semicircular piece and the lower semicircular piece which correspond to the abdicating sleeve and can be assembled in a sliding manner; during the use, the terminal surface that the end ground the pipe compresses tightly with the tip of stepping down the cover directly or indirectly, and the semicircular groove block is close to the position that the end ground the terminal surface at the needle section.

The invention has the beneficial effects that:

the invention can effectively restrain and clamp the needle section through the end grinding clamping mechanism, and then utilizes the end grinding plugs to grind the two ends of the needle section so as to eliminate burrs and deformed parts of the notch, thereby improving the subsequent qualification rate. Meanwhile, a control structure for limiting the maximum grinding feed amount of the end grinding plug is designed, so that the effective grinding of the two ends of the needle section is guaranteed, and defective products caused by excessive grinding can be prevented.

Drawings

FIG. 1 is a schematic structural view of an end mill;

FIG. 2 is a schematic structural view of an end mill;

FIG. 3 is a schematic structural view of an end mill;

FIG. 4 is a schematic structural view of an end mill;

FIG. 5 is a schematic structural view of an end mill;

FIG. 6 is a schematic view of a partial structure of an end mill;

FIG. 7 is a partial schematic diagram of centering module 200;

FIG. 8 is a schematic view of a partial structure of an end mill;

FIG. 9 is a cross-sectional view of the end mill at the center plane of the axis of the clamp cylinder shaft 541;

FIG. 10 is a schematic view of a portion of the end mill delivery module 400;

FIG. 11 is a schematic structural view of the end mill module 300;

FIG. 12 is a schematic structural view of the end mill module 300;

FIG. 13 is a schematic structural view of the end mill module 300;

FIG. 14 is a schematic view of a portion of the construction of end mill module 300;

FIG. 15 is a schematic view of a portion of the construction of end mill module 300;

FIG. 16 is a schematic structural view of an end mill mechanism;

FIG. 17 is a schematic view of a portion of the end mill mechanism;

FIG. 18 is a schematic view of a portion of the end mill mechanism;

fig. 19 is a sectional view of the end mill mechanism at the central plane of the axis of the end mill thread insert 670;

FIG. 20 is a cross-sectional view of the end grinding mechanism at a central plane of the axis of the end grinding tube 650;

FIG. 21 is a schematic structural view of an end grinding clip mechanism 800;

FIG. 22 is a schematic view of a portion of the end clip mechanism 800;

FIG. 23 is a schematic view of a portion of the end clip mechanism 800;

FIG. 24 is a schematic view of a portion of the end clip mechanism 800;

FIG. 25 is a schematic view of a modified construction of the end grinding clip mechanism 800;

FIG. 26 is a schematic view of a modified construction of the end grinding clip mechanism 800;

FIG. 27 is a modified construction of the end grinding clip mechanism 800 with the end grinding mechanism located at the center plane of the axis of the end grinding tube 650 in cross-section;

FIG. 28 is a schematic view of a modified end grinding clip mechanism 800.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 9, the end mill of the linear probe in this embodiment includes a transfer module 100, a centering module 200, an end mill module 300, and an end mill conveying module 400, where the transfer module 100 is configured to transfer a cut needle segment 01 to the end mill conveying module 400, the end mill conveying module 400 clamps the needle segment 01 tightly through an end mill conveying seat 460, and then the conveying needle segment passes through the centering module 200 and the end mill module 300 in sequence to output the needle segment 01; the centering module 200 is used for synchronously extruding two ends of the needle section so as to center the two ends of the needle section 01 relative to the end grinding module 300, and the end grinding module 300 is used for grinding the two ends of the needle section 01, so that burrs, deformed parts and the like at the cut of the needle section are eliminated, sharpening of the subsequent needle section 01 is facilitated, and meanwhile, the product percent of pass is improved.

Referring to fig. 1 to 9, the transfer module 100 includes a transfer frame 110, a transfer arc plate 111, a transfer rotating shaft 130, a transfer wheel 120, and a transfer motor 512 are mounted on the transfer frame 110, the transfer wheel 120 is coaxially mounted on the transfer rotating shaft 130, and a plurality of transfer notches 121 are uniformly arrayed along the circumference of the transfer wheel 120, the transfer notches 121 are used for engaging with the needle segments 01 to convey the needle segments 01; the transfer wheel 120 is coaxially mounted with the inner side of the transfer arc 111, and the outer wall of the needle segment in use abuts against the inner side of the transfer arc 111, thereby ensuring efficient transport of the needle segment. One end of the transfer rotating shaft 130 is connected with an output shaft of the transfer motor 512, and the transfer motor 512 can drive the transfer rotating shaft 130 to rotate after being started, that is, the transfer wheel 120 is driven to synchronously rotate so as to convey the needle section 01. In this embodiment, the transfer motor is a servo motor, and only drives the transfer wheel 120 to rotate by a fixed angle each time, specifically, the total number of the transfer notches 121 is divided by 360 °, so as to ensure that one transfer notch 121 is always aligned with the groove of the guide seat 420 to facilitate the needle segment input, and one transfer notch 121 is always in a connection state with the end grinding conveying module 400 to facilitate the needle segment output.

Preferably, the transfer frame 110 is further provided with an assisting motor 511, an output shaft of the assisting motor 511 is provided with an assisting wheel 140, the assisting wheel 140 can be tightly pressed with the needle section entering the inner side of the transfer arc plate 111, and then the needle section 01 is driven to completely enter the inner side of the transfer arc plate 111 by the rolling of the assisting wheel 140 so as to facilitate the conveying of the subsequent transfer wheel 120. In this embodiment, the servo motor 511 is adopted as the power-assisted motor, and when the power of the servo motor is increased to a preset threshold, it is determined that the needle section 01 is loaded in place, so that the operation is stopped. After the needle segment is loaded, the transfer motor 512 is started to transfer the needle segment by a predetermined angle, so that the next empty transfer notch 121 is opposite to the groove of the guide seat 420 for loading the next needle segment 01.

Preferably, the transfer arc plate 111 is further hinged to one end of the transfer baffle 112 at the station where the end grinding conveying module 400 loads the needle segment 01, and a transfer torsion spring is installed between the transfer baffle 112 and the transfer arc plate 111 and applies a torsion force to the transfer baffle 112 and the transfer arc plate 111 to rotate. This kind of design makes end grind transport module 400 load can only take needle section 01 to leave the loading station after need overcoming certain damping after needle section 01, can ensure the effective loading of needle section on the one hand, and on the other hand grinds the clearance that resets of sealing 462 for the end that corresponds, avoids the end to grind that sealing 462 does not reset completely and hour the needle section drops.

Referring to fig. 1-10, the end mill conveying module 400 includes two end mill conveying frames 410, a root end mill conveying shaft 441 is respectively mounted on the two end mill conveying frames 410, an end mill conveying belt 440 is wound around the two end mill conveying shafts 441 and forms a belt transmission mechanism, wherein one end mill conveying shaft 441 is connected with an output shaft of an end mill conveying motor 420 through an end mill driving belt 450 and forms a belt transmission mechanism, and the end mill conveying motor 420 can drive the end mill conveying belt 440 to operate to convey a needle segment 01 after being started.

Referring to fig. 10, a plurality of end mill conveyors 460 are equidistantly installed on the end mill conveyor 440 along the running direction of the end mill conveyor 440, and the end mill conveyors 460 include an end mill fixing part 461 installed on the end mill conveyor 440, an end mill sealing part 462 hinged to the end mill fixing part 461 by an end mill pin 463, and an end mill torsion spring fitted over the end mill pin 463 to apply a rotation torsion force to the end mill fixing part 461 to the end mill sealing part 462. The inner side of the end grinding fixing part 461 is an end grinding conveying groove 464 facing the opening of the end grinding sealing part 462, and the needle section 01 is installed in the end grinding conveying groove 464 and is pressed in the end grinding conveying groove 464 through the end grinding sealing part 462.

The end mill conveying frame 410 is further provided with an end mill unlocking disc 430, and an end mill unlocking surface 431 is arranged on the end mill unlocking disc 430; in the initial state, the bottom of the end mill sealing part 462 is lower than the end mill unlocking surface 431. When the end mill conveying seat 460 moves to the end mill unlocking disc 430, the bottom of the end mill sealing part 462 is pressed against the side face of the end mill unlocking disc 430, so that the end mill unlocking disc cannot pass through the end mill conveying seat 460, at this time, the end mill unlocking disc 430 can extrude the bottom of the end mill sealing part 462 along with the continuous movement of the end mill conveying seat 460, the end mill sealing part 462 overcomes the torsion of the end mill torsion spring to rotate until the side face of the end mill sealing part 462 is attached to the end mill unlocking face 431, the open end of the end mill conveying groove 464 is opened at the moment, and the needle section 01 can output the end mill conveying groove 464.

When the end grinding conveyor belt 440 loads the needle segment 01 from the transfer module 100, firstly the transfer module 100 transfers the needle segment 01 to a position parallel to the end grinding conveyor groove 464, then the end grinding conveyor belt 440 carries the end grinding conveyor seat 460 closest to the needle segment 01 in the operation direction to move to the loading station, the end grinding conveyor seat 460 is gradually matched with the end grinding unlocking disk 430 on the other end grinding conveyor frame 410, so that the corresponding end grinding seal part 462 is gradually opened, the open end of the end grinding conveyor groove 464 is gradually opposite to the needle segment 01, the end grinding conveyor groove 464 is sleeved outside the needle segment 01 along with the movement of the end grinding conveyor groove 464, and at the moment, the end grinding seal part 462 is still kept in an open state; the end grinding conveying groove 464 moves continuously, so that the needle section 01 pushes the transfer baffle 112, the transfer baffle 112 rotates and opens until the end grinding sealing part 462 is separated from the end grinding unlocking surface 431, at the moment, the end grinding torsion spring of the end grinding sealing part 462 resets to press the needle section 01 in the end grinding conveying groove 464, and then along with the movement of the needle section 01, the needle section 01 can be completely separated from the transfer baffle 112, and the transfer baffle 112 resets under the action of the rotating torsion spring.

Preferably, the end mill conveying module 400 is further provided with a releasing frame 470 at the centering module 200, a releasing spring 471 is mounted on the top of the releasing frame 470, and the releasing spring 471 has elasticity and can provide resistance to the passage of the end mill sealing part 462. After the end mill sealing part 462 reaches the releasing spring 471, the releasing spring 471 is gradually squeezed, and at this time, the end mill sealing part 462 slightly rotates to release the needle section 01, so that the subsequent centering module 200 can perform centering. After centering, the end-ground sealing part 462 directly penetrates through the release spring 471, so as to recover the clamping of the needle section 01.

Referring to fig. 1 to 7, the centering module 200 includes a centering frame 210, two centering sliding grooves 211 are disposed on an inner side wall of the centering frame 210, each centering sliding groove 211 is respectively engaged with one centering sliding rail 233 and slidably assembled, the two centering sliding rails 233 are respectively mounted on a centering member 230, a centering push plate 231 and a centering rack 232 are further disposed on the centering member 230, the two centering push plates 231 are used for pushing two ends of a needle section 01 to achieve centering, the two centering racks 232 are respectively engaged with two sides of a centering gear 240 for transmission, the centering gear 240 is sleeved on a centering gear shaft 250, and the centering gear shaft 250 is mounted on the centering frame 210; the two centering push plates 231 are also respectively sleeved on the same centering screw rod 220, the centering screw rod 220 is installed on the centering frame 210, one end of the centering screw rod is connected with an output shaft of the centering motor 530, and the centering motor 530 can drive the centering screw rod 220 to rotate circumferentially after being started; one of the centering push plates 231 is assembled with the centering screw rod 220 in a screwing manner through threads, and the other centering push plate 231 is sleeved on the centering screw rod 220 in an axially sliding manner; and one of the two centering push plates 231 is also assembled with a displacement probe shaft 521, the other end of the displacement probe shaft 521 is installed in a displacement sensor 520, and the displacement sensor 520 is used for detecting the displacement of the corresponding centering push plate 231. During centering, the end mill conveying module 400 firstly carries the needle section 01 to enter between the two centering push plates 231, the needle section 01 is in a non-clamping state at the moment, then the centering motor 530 is started, the centering motor drives the two middle push plates 231 to mutually approach and detects the motor 530 in the stopping process after the displacement of the corresponding middle push plates 231 reaches a preset threshold value through the displacement sensor 520, and then the needle section 01 is moved out and the two centering push plates 231 are reset. In this embodiment, the pressure between the middle push plate 231 and the end of the needle segment 01 is small, so that the needle segment will not generate large friction with the middle push plate 231, which causes deformation of the needle segment, and the width of the centering push plate 231 is large (the needle segment conveying direction), which can ensure that the needle segment 01 is in a centered state when the end sealing part 462 passes through the releasing spring 471.

Referring to fig. 1-6, 8-9, and 11-24, the end grinding module 300 includes an end grinding frame 310, two clamping frames 320 distributed up and down are installed in the end grinding frame 310, each clamping frame 320 is provided with a support 323 and a clamping rack 321, the clamping racks 321 of the two clamping frames 320 are respectively engaged with two sides of a clamping gear 710 for transmission, the clamping gear 710 is sleeved on a clamping pinion 620, and the clamping pinion 620 is installed on the end grinding frame 310. The two clip holders 320 are respectively passed through and axially slidably fitted with clip guide shafts 610, the clip guide shafts 610 being mounted on the end mill holder 310. The clamping frame 320 positioned above is also assembled with a clamping cylinder shaft 541, one end of the clamping cylinder shaft 541 is installed in the clamping cylinder 540, and the clamping cylinder 540 is installed on the end grinding frame 310. When the clamping device is used, the clamping cylinder 540 drives the clamping cylinder shaft 541 to axially extend and retract so as to control the two clamping frames 320 to move close to or away from each other.

Referring to fig. 21 to 24, the two clamping frames 320 are further provided with an end clamping mechanism 800 for clamping the needle section 01, the end clamping mechanism 800 includes an upper clamping seat 810 and a lower clamping seat 820, the upper clamping seat 810 and the lower clamping seat 820 are respectively mounted on the two clamping frames 320, the upper clamping seat 810 and the lower clamping seat 820 are respectively provided with a first rubber mat 830 and a second rubber mat 840, and the first rubber mat 830 and the second rubber mat 840 have elasticity; the clamping frame 320 provided with the upper clamping seats 810 is provided with two clamping sliding grooves 321, the two upper clamping seats 810 respectively penetrate through the clamping sliding grooves 321, the two upper clamping seats 810 are respectively arranged on two sides of the first rubber mat 830, and the two upper clamping seats 810 are clamped with the clamping sliding grooves 321 and can be assembled in a sliding manner; the upper clamping seat 810 is also provided with a clamping seat roller 812 and an upper clamping seat inclined plane 811, and the clamping seat roller 812 is circumferentially and rotatably mounted on the upper clamping seat 810 and is pressed against the bracket 323; the lower clamping base 820 is provided with a lower clamping base block 821, and the lower clamping base block 821 is provided with a lower clamping base inclined surface 821 which can be attached to the upper clamping base inclined surface 811. Go up the cassette 810 during the use, lower cassette 820 removes to needle section 01 simultaneously, until first cushion 830, second cushion 840 compress tightly with needle section 01 respectively, then go up cassette inclined plane 811 and lower cassette inclined plane 821 cooperation to cassette 810 is gone up in the extrusion two, make first cushion 830 take place to warp and extrusion force to needle section 01 axis, so not only can press from both sides the tight needle section better, can also make the needle section location between two parties effectively, so that subsequent end grinds the processing.

End grinds clamping mechanism 800 in this embodiment has three groups at least, and two sets of tip, a set of needle section intermediate position that is close to the needle section to ensure the effective clamp to the needle section, and the end that is close to needle section tip grinds clamping mechanism 800 because will ensure that thinner needle section reduces as far as possible and warp and tremble when the end grinds the processing, consequently need carry out effectual constraint to non-processing part, thereby ensures the processing quality. For this, an upper binding seat 850 and a lower binding seat 860 are respectively added on the end grinding clip mechanism 800 close to the end of the needle section, the upper binding seat 850 and the lower binding seat 860 are respectively installed on the two clip racks 320, the upper binding seat 850 and the lower binding seat 860 are respectively installed with a third rubber pad 870 and a fourth rubber pad 880, the upper binding seat 850 is further provided with an upper semicircular piece 851 and an upper binding block 852, and the upper binding block 852 is provided with an upper binding inclined plane 853; a lower extrusion part 881 is arranged on the fourth rubber mat 880, an extrusion strip 890 is arranged on the outer side of the lower extrusion part 881, and a lower binding surface 891 which can be attached to the upper binding inclined surface 853 is arranged on the extrusion strip 890; the third rubber cushion 870 and the fourth rubber cushion 880 have elasticity, and the third rubber cushion 870 is provided with an upper pressing portion 871 attached to the lower pressing portion 881. In this embodiment, the first rubber pad 830, the second rubber pad 840, the third rubber pad 870 and the fourth rubber pad 880 can be made of rubber or silica gel. The end surface of the extrusion strip 890 is attached to the end surface of the lower binding seat 860 and can be assembled in a sliding mode, a lower semicircular piece 861 is arranged on the lower binding seat 860, and a complete circular ring is formed after the lower semicircular piece 861 and the upper semicircular piece 851 are assembled. When the upper binding seat 850 and the lower binding seat 860 move towards the needle section 01 to clamp the needle section 01, the upper binding inclined surface 853 is gradually attached to the lower binding surface 891, the end part of the upper pressing part 871 enters the inner side of the pressing strip 890, and then the upper binding inclined surface 853 is gradually pressed to be matched with the lower binding surface 891 so as to apply pressing force to the pressing strip 890 towards the needle section, so that the upper pressing part 871 and the lower pressing part 881 are both pressed towards the needle section, and the positioning of the needle section is realized. Therefore, the subsequent needle section 01 can be processed conveniently, and the positioning of the needle section is realized in the clamping process, so that the efficiency can be improved and the convenience is realized.

Referring to fig. 1 to 20, different end grinding mechanisms are further respectively mounted on the clamping frame 320 and at two ends of the needle section 01, and the end grinding mechanisms are used for grinding the end of the needle section 01; the end grinding mechanism comprises a first end grinding plate 371, a second end grinding plate 372 and a third end grinding plate 373, wherein the second end grinding plate 372 and the third end grinding plate 373 are both mounted on one of the clamping frames 320, an end grinding guide rail 324 is further mounted on the clamping frame 320, the end grinding guide rail 324 is clamped with the first end grinding plate 371 and can be assembled in a sliding mode, the first end grinding plate 371 and an end grinding pipe 650 can rotate in a circumferential mode and cannot be assembled in an axial moving mode, one end of the end grinding pipe 650 penetrates through the pipe sleeve 770 and then penetrates out of the third end grinding plate 373, the pipe sleeve 770, the second end grinding plate 372 and the third end grinding plate 373 can rotate in a circumferential mode and cannot be assembled in an axial moving mode, and the end grinding pipe 650 and the pipe sleeve 770 can move in an axial mode and cannot be assembled in a circumferential rotating mode.

Referring to fig. 20, the end grinding pipe 650 is internally provided with a hollow end grinding inner hole 651, a fixing ring 652 is installed in the end grinding inner hole 651, an end grinding plug 760 is installed in the end grinding inner hole 651 in a snap-fit and axially slidable manner, the end grinding plug 760 is assembled with one end of an end grinding sliding shaft 761, the other end of the end grinding sliding shaft 761 is sleeved with a third end grinding spring 303 and then penetrates through the fixing ring 652, the third end grinding spring 303 applies a thrust force far away from the fixing ring 652 to the end grinding plug 760, and the end grinding plug 760 cannot rotate circumferentially relative to the end grinding pipe 650.

Referring to fig. 13-19, the second end grinding plate 372 and the third end grinding plate 373 are further assembled with the end grinding screw sleeve 670 in a circumferentially rotatable and axially immovable manner, the end grinding screw sleeve 670 is assembled on the third end grinding shaft 663 in an axially slidable and circumferentially immovable manner, the third end grinding shaft 663 is mounted with an end grinding worm wheel 741, the end grinding worm wheel 741 is in meshing transmission with the end grinding worm 742, the end grinding worm 742 is disposed on the fourth end grinding shaft 664, the fourth end grinding shaft 664 is connected with an output shaft of the second end grinding motor 552 through a second end grinding belt 750 and forms a belt transmission mechanism, and the second end grinding motor 552 can drive the fourth end grinding shaft 664 to rotate circumferentially after being started, so as to drive the end grinding screw sleeve 670 to rotate.

The first end grinding belt 720 bypasses the pipe sleeve 770 and the first end grinding shaft 661 to form a belt transmission mechanism, the first end grinding shaft 661 is circumferentially and rotatably assembled with the second end grinding plate 372 and the third end grinding plate 373, the first end grinding shaft 661 is further provided with a first end grinding bevel gear 731, the first end grinding bevel gear 731 is in meshing transmission with a second end grinding bevel gear 732, the second end grinding bevel gear 732 is arranged on the second end grinding shaft 662, the second end grinding shaft 662 is connected with an output shaft of the first end grinding motor 551, and the first end grinding motor 551 can drive the second end grinding shaft 662 to circumferentially rotate so as to drive the first end grinding shaft to circumferentially rotate, namely, the corresponding end grinding plug 760 is driven to rotate to grind the end of the needle section 01, and the end grinding plug 760 can be a grinding wheel. The second end grinding shaft 662, the third end grinding shaft 663 and the fourth end grinding shaft 664 are all circumferentially and rotatably arranged on the corresponding clamp holders 320.

The first end grinding plate 371 and the end grinding thread insert 670 are assembled directly or indirectly through thread screwing, so that the first end grinding plate 371 can be driven to move along the axial direction of the end grinding thread insert 670 when the end grinding thread insert 670 rotates; the thread directions of the end grinding thread sleeves 670 of the end grinding mechanisms at the two ends of the same needle section 01 and the first end grinding plate 371 are opposite, so that the end grinding pipes 650 at the two sides can be driven to synchronously move close to or synchronously move away from each other.

Referring to fig. 11-19, in order to control the grinding amount of the needle section, it is well known that the end grinding tube 650 cannot move to the needle section 01 when the grinding is in place, and at this time, even if the grinding amounts of the two ends of the same needle section 01 are not consistent, the continuous grinding of the other end cannot be affected, the following design is made for this embodiment:

a screw block chute 3712 is arranged on the first end grinding plate 371, the screw block chute 3712 is clamped with the screw block 360 and can be assembled in a sliding manner, a spring frame 3711 is further installed at the position, located at the screw block chute 3712, of the first end grinding plate 371, a spring pin 640 is installed on the spring frame 3711, the spring pin 640 is assembled with one end of the second end grinding spring 302, the other end of the second end grinding spring 302 is pressed or assembled with the screw block 360, and the second end grinding spring 302 applies thrust far away from the spring pin 640 to the screw block 360; the screw block 360 is provided with a thread which can be screwed with the end milling screw sleeve 670, so that the screw block 360 can be driven to move when the end milling screw sleeve 670 rotates, namely the first end milling plate 371 is driven to move; a screw block groove 361 is formed in the inner side of the screw block 360, and a screw block inclined plane 362 is formed in the screw block groove 361; the wedge block 350 is installed in the screw groove 361 and is assembled with the screw groove 361 in a sliding manner, the wedge block 350 is provided with a wedge inclined surface 351, the wedge inclined surface 351 can be attached to the screw inclined surface 362, so that the screw block 360 is guided to move upwards against the elastic force of the second end grinding spring 302 until the screw block is separated from the end grinding screw sleeve 670, at this time, the first end grinding plate 371 cannot move continuously, namely, the end grinding plug 760 cannot move continuously, and therefore the grinding amount is controlled.

The wedge-shaped block 350 is installed on the end grinding supporting plate 344, the end grinding supporting plate 344 is installed on the end grinding adjusting rod 343, one end of the end grinding adjusting rod 343 penetrates through the corresponding clamping frame 320 and then is assembled with the end grinding adjusting part 342, the end grinding adjusting rod 343 is clamped with the corresponding clamping frame 320 and can be assembled in a sliding mode, and the end grinding adjusting part 342 is provided with a second short pin 3421; the end mill adjusting part 342 is axially slidably sleeved on the end mill guide shaft 630, the end mill guide shaft 630 is installed on the corresponding clamping frame 320, a first end mill spring 301 is sleeved on a part, located between the clamping frame 320 and the end mill adjusting part 342, of the end mill guide shaft 630, and the first end mill spring 301 applies thrust far away from the clamping frame 320 to the end mill adjusting part 342. The second short pin 3421 is clamped into a groove at one end of the linkage adjusting rod 341 and is slidably assembled with the groove, grooves are formed at two ends of the linkage adjusting rod 341, the middle part of the linkage adjusting rod is hinged with the end grinding shaft plate 322, the end grinding shaft plate 322 is installed on the clamping frame 320 corresponding to the end grinding shaft plate, a groove at the other end of the linkage adjusting rod 341 is clamped with the first short pin 332 and is slidably assembled, the first short pin 332 is installed on the pin seat 331, the pin seat 331 is installed on the linkage frame 330, and the linkage frame 330 is clamped with and slidably assembled on the corresponding clamping frame 320; specifically, the clip holder 320 is mounted with a holding block 325, and the link holder 330 is engaged with and slidably mounted on the holding block 325.

The end of the linkage frame 330 is opposite to the end of the clamping rack 321 on the other clamping frame 320, and in the process of clamping the needle section 01 by the end grinding clamping mechanism 800, the end of the clamping rack 321 on the other clamping frame 320 gradually extrudes the linkage frame 330, so that the linkage frame 330 continuously moves towards the linkage adjusting rod 341, the driving end grinding adjusting part 342 of the linkage adjusting rod 341 overcomes the elasticity of the first end grinding spring 301 to move upwards, and the wedge block 350 is moved upwards at the same time until the wedge block 350 reaches the preset upwards moving height, and at the moment, the end grinding clamping mechanism 800 finishes clamping the needle section. The first and second

end grinding motors

551, 552 are then activated so that the end grinding plugs 760 circumferentially rotate the ends of the grinding pin segments 01. While the end grinding plug 760 is continuously moved axially toward the needle segment to adjust the grinding length. Again, the screw 360 continues to move toward the wedge 350 until the wedge 350 drives the screw 360 upward to disengage from the nut 670 and the end wear plug 760 no longer moves axially, indicating that the amount of wear is in place. After polishing is finished (in a state shown in fig. 20), the clamping cylinder 540 drives the clamping cylinder shaft 541 to contract, so as to drive the two clamping frames 320 to move away from each other, at this time, the end of the clamping rack 321 on the other clamping frame 320 gradually disengages from the linkage frame 330, the end polishing adjusting part 342 drives the linkage frame 330 to gradually move up and reset through the linkage adjusting rod 341 under the elastic force action of the first end polishing spring 301, that is, the wedge block 350 moves down, after the wedge block 350 moves down, the second end polishing spring 302 drives the screw block 360 to move down and recover to a state of being screwed with the screw sleeve 670, and then the second end polishing motor 552 can drive the screw sleeve 670 to rotate reversely until the first end polishing plate 371 reversely moves and resets, so as to finish end polishing processing. The clamping mechanism 800 has now been reset and can be run through the end mill conveyor belt 440 to move the end mill finished needle segment 01 to the next process.

Referring to fig. 25-28, the needle section 01 has a long end extending out, typically about 1 cm, during end grinding, and at least 0.8 cm during end grinding. When the end is ground, it is difficult to ensure that the end grinding plug 760 is coaxial with the needle section 01, and once the end is not coaxial, the needle section is subjected to centrifugal force in the circumferential direction, so that the end part is easily bent, the end grinding end face is easily inclined, and the like. This embodiment is further modified as follows:

a retaining assembly is respectively installed on the upper and lower tie down

seats

850 and 860, the retaining assembly comprises a retaining cover 910, a retaining ring 940, a yielding sleeve 920 and a retaining spring 960, the retaining cover 910 is installed on the upper or lower tie down

seat

850 or 860, the retaining ring 940 is clamped and slidably installed in the retaining cover 910, one end of the retaining spring 960 is assembled with one end of the yielding sleeve 920, the other end is assembled with the upper or lower tie down

seat

850 or 860, and the retaining spring 960 exerts resistance force on the yielding sleeve 920 to prevent the yielding sleeve 920 from moving towards the upper or lower tie down

seat

850 or 860.

The other end of the abdicating sleeve 920 is provided with a retaining ring 940, the retaining ring 940 is provided with a semicircular groove 942 capable of being clamped with the needle section 01 and slidably assembled and a through retaining through hole 941, and the abdicating sleeve 920 is also respectively clamped with the outer walls of the upper semicircular piece 851 and the lower semicircular piece 861 corresponding to the retaining ring and slidably assembled. During the use, the terminal surface of end mill pipe 650 compresses tightly with the tip of stepping down cover 920, and the position about 0.1 millimeter near the end mill terminal surface in needle section 01 is ground to the semicircle groove 942 block to the tip to needle section forms effectual constraint, avoids the end of end mill needle section to produce tremble, bending. In the end grinding process, the end grinding plug 760 is always pressed against the end of the needle section, and the end of the end grinding tube 650 extrudes the abdicating sleeve 920, so that the two abdicating sleeves 920 gradually move away from the first end grinding plate 371 while overcoming the elastic force of the corresponding retaining springs 960, respectively, until the end grinding is completed. In the process, the two retaining rings 940 are engaged with the end surface of the needle segment at a position of about 0.1 mm in the circumferential direction all the time, so that the normal end grinding of the end grinding plug 760 is not hindered, and the end of the needle segment can be effectively limited and positioned. At this time, the normal end grinding of the needle section is not affected even if the end grinding plug 760 is not coaxial with the end face of the needle section 01, so that the precision requirement of the equipment is reduced, and the manufacturing cost of the equipment is also reduced.

Preferably, a thrust half ring 930 is installed on one end of the abdicating sleeve 920 far away from the holding spring 960, and a ball 950 is installed on the thrust half ring 930 in a ball-shaped rolling manner. During the use, ball 950 and the terminal surface that the end ground pipe 650 compress tightly to make the end grind between pipe 650 and the cover 920 of stepping down through the roll of ball in order to reduce friction, because the end grinds pipe 650 and is in the rotating-state during the use, in case with the cover 920 of stepping down directly compresses tightly and can cause great friction, not only influence the normal end of end grinding stopper 760 to grind, still can accelerate the wearing and tearing of the cover 920 of stepping down, end grinding pipe 650.

Preferably, a joint cover 3713 is further installed at a position of the first end grinding plate 371 corresponding to the end grinding pipe 650, the joint cover 3713 is communicated with one end of the spring hose, and the other end of the spring hose is connected to the cooling liquid; the end grinding plug 760 and the fixing ring 652 are respectively provided with a penetrating end grinding plug groove 762 and a fixing ring groove 6521. When the end grinding device is used, the spring hose introduces cooling liquid or cutting liquid into the end grinding inner hole 651, the cooling liquid or the cutting liquid penetrates through the fixing ring groove 6521 and the end grinding plug groove 762 and then enters between the end grinding plug 760 and the end of the needle section, so that the needle section is cooled, and the cooling liquid or the cutting liquid is attached to the surface of the needle section to provide friction between the semicircular groove 942 and the needle section 01 so as to reduce the friction force between the semicircular groove 942 and the needle section 01 during end grinding.

In this embodiment, the diameter of the needle section 01 is enlarged by 100 times and is shown, which is mainly because the actual diameter is too small to express the principle.

The invention is not described in detail, but is well known to those skilled in the art.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The end grinding machine for the linear probe is characterized by comprising an end grinding module, wherein the end grinding module comprises an end grinding frame, two clamping frames which are vertically distributed are arranged in the end grinding frame, and a needle section to be processed is positioned between the two clamping frames; different end grinding mechanisms are respectively arranged on one clamping frame and positioned at two ends of the needle section, and the end grinding mechanisms are used for grinding the end part of the needle section; the end grinding mechanism comprises a first end grinding plate, a second end grinding plate and a third end grinding plate, and the first end grinding plate, the second end grinding plate and the third end grinding plate are all arranged on one clamping frame;

the second end grinding plate and the third end grinding plate are respectively and rotatably assembled with an end grinding threaded sleeve, and the end grinding threaded sleeve is slidably sleeved on the third end grinding shaft; the first end grinding plate and the end grinding threaded sleeve are assembled directly or indirectly through thread screwing.

2. The end mill for linear probes as claimed in claim 1, wherein the end mill tube is internally provided with a hollow end mill inner hole, the end mill inner hole is internally provided with a fixing ring, the end mill inner hole is internally provided with an end mill plug in a clamping manner, the end mill plug is assembled with one end of the end mill sliding shaft, the other end of the end mill sliding shaft is sleeved with a third end mill spring and then passes through the fixing ring, and the third end mill spring applies a thrust force to the end mill plug, which is far away from the fixing ring.

3. The end mill for linear probe as claimed in claim 1, wherein the third end mill shaft is provided with an end mill worm wheel, the end mill worm wheel is in mesh transmission with an end mill worm, the end mill worm is arranged on the fourth end mill shaft, and the fourth end mill shaft is connected with the output shaft of the second end mill motor through the second end mill belt and forms a belt transmission mechanism;

4. The end mill for linear probes as claimed in claim 1, wherein each clamping rack is provided with a bracket and a clamping rack, the clamping racks of the two clamping racks are respectively engaged with two sides of a clamping gear for transmission, the clamping gear is sleeved on a clamping pinion, and the clamping pinion is mounted on the end mill;

the second short pin is arranged in a groove at one end of the linkage adjusting rod and is assembled with the linkage adjusting rod in a sliding mode, grooves are formed in two ends of the linkage adjusting rod, the middle portion of each groove is hinged to the end grinding shaft plate, the end grinding shaft plate is installed on a clamping frame corresponding to the end grinding shaft plate, the groove at the other end of the linkage adjusting rod is assembled with the first short pin in a clamping and sliding mode, the first short pin is installed on the pin seat, the pin seat is installed on the linkage frame, the linkage frame is installed on the corresponding clamping frame in a clamping and sliding mode, the end portion of the linkage frame is right opposite to the end portion of a clamping rack on the other clamping frame, and in the process of grinding a clamping needle section of the clamping mechanism at the end, the end portion of the clamping rack on the other clamping frame can gradually extrude the linkage frame.

5. The end grinding machine for the linear probe as claimed in claim 1, wherein the two clamping frames are further provided with end clamping mechanisms for clamping the probe section, the end clamping mechanisms comprise an upper clamping seat and a lower clamping seat, the upper clamping seat and the lower clamping seat are respectively arranged on the two clamping frames, and the upper clamping seat and the lower clamping seat are respectively provided with a first rubber pad and a second rubber pad, and the first rubber pad and the second rubber pad have elasticity; two upper clamping seats are respectively arranged on two sides of the first rubber mat, and the two upper clamping seats are clamped with the clamping sliding grooves and are assembled in a sliding manner; the upper clamping seat is also provided with a clamping seat roller and an upper clamping seat inclined plane, and the clamping seat roller is rotatably arranged on the upper clamping seat and is tightly pressed with the bracket; the lower clamping seat is provided with a lower clamping seat block, and the lower clamping seat block is provided with a lower clamping seat inclined plane which can be attached to the upper clamping seat inclined plane.

6. The end grinding machine for the linear probe as claimed in claim 5, wherein an upper binding seat and a lower binding seat are respectively added on the end grinding clamping mechanism close to the end of the needle section, the upper binding seat and the lower binding seat are respectively installed on the two clamping frames, a third rubber pad and a fourth rubber pad are respectively installed on the upper binding seat and the lower binding seat, an upper semicircular piece and an upper binding block are further arranged on the upper binding seat, and an upper binding inclined plane is arranged on the upper binding block; a lower extrusion part is arranged on the fourth rubber mat, an extrusion strip is arranged on the outer side of the lower extrusion part, and a lower binding surface capable of being attached to the upper binding inclined surface is arranged on the extrusion strip; the third rubber pad and the fourth rubber pad are both elastic, and the third rubber pad is provided with an upper extrusion part attached to the lower extrusion part;

7. The end mill for linear probes as claimed in claim 1, further comprising a transfer module, a centering module, and an end mill conveying module, wherein the transfer module is used for transferring the needle section output by the cutting machine to the end mill conveying module, the end mill conveying module clamps the needle section through the end mill conveying seat, and then the needle section is conveyed into the sharpening machine after passing through the centering module and the end mill module in sequence; the centering module is used for synchronously extruding two ends of the needle section so as to center the two ends of the needle section relative to the end grinding module;

the transfer module comprises a transfer frame, wherein a transfer arc plate, a transfer rotating shaft, a transfer wheel and a transfer motor are arranged on the transfer frame, the transfer wheel is coaxially arranged on the transfer rotating shaft, a plurality of transfer notches which are uniformly arrayed along the circumference of the transfer wheel are also arranged on the edge of the transfer wheel, and the transfer notches are used for being clamped with the needle sections to convey the needle sections; the transfer wheel is coaxially assembled with the inner side of the transfer arc plate, and the outer wall of the hour hand section is tightly attached to the inner side of the transfer arc plate in use; one end of the transfer rotating shaft is connected with an output shaft of the transfer motor;

8. The end mill for linear probes as claimed in claim 7, wherein said centering module comprises a centering frame, two centering chutes are provided on the inner side wall of said centering frame, each centering chute is engaged with and slidably assembled with a respective centering slide rail, the two centering slide rails are respectively mounted on the centering member, said centering member is further provided with a centering push plate and a centering rack, the two centering push plates are used for pushing the two ends of the needle section to realize centering, the two centering racks are respectively engaged with and driven by the two sides of the centering gear, said centering gear is sleeved on a centering gear shaft, and the centering gear shaft is mounted on the centering frame;

9. The end mill for linear probes as claimed in claim 7, wherein said end mill conveying module comprises two end mill conveying frames, each of which is provided with a root end mill conveying shaft, the end mill conveying belts pass around the two end mill conveying shafts and form a belt transmission mechanism, wherein one of the root end mill conveying shafts is connected with the output shaft of the end mill conveying motor through an end mill driving belt and forms a belt transmission mechanism;

a plurality of end grinding conveying seats are equidistantly arranged on the end grinding conveying belt along the running direction of the end grinding conveying belt, each end grinding conveying seat comprises an end grinding fixing part arranged on the end grinding conveying belt, an end grinding sealing part hinged with the end grinding fixing part through an end grinding pin, and an end grinding torsion spring sleeved on the end grinding pin and used for applying rotation torsion to the end grinding fixing part to the end grinding sealing part; the inner side of the end mill fixing part is provided with an end mill conveying groove facing the opening of the end mill sealing part, and the needle section is arranged in the end mill conveying groove and is tightly pressed in the end mill conveying groove through the end mill sealing part;

10. The end mill for linear probes as claimed in claim 6, wherein different retaining assemblies are respectively mounted on the upper and lower constraining seats, each retaining assembly comprises a retaining cover, a retaining ring, a yielding sleeve and a retaining spring, the retaining cover is mounted on the upper or lower constraining seat, the retaining ring is mounted in the retaining cover in a clamping and sliding manner, one end of the retaining spring is assembled with one end of the yielding sleeve, the other end of the retaining spring is assembled with the upper or lower constraining seat, and the retaining spring applies resistance to the yielding sleeve to prevent the yielding sleeve from moving towards the upper or lower constraining seat;

a retaining ring is mounted at the other end of the abdicating sleeve, a semicircular groove which can be clamped with the needle section and is assembled in a sliding mode is formed in the retaining ring, and the abdicating sleeve is also respectively clamped with the outer walls of the upper semicircular piece and the lower semicircular piece which correspond to the abdicating sleeve and is assembled in a sliding mode; during the use, the terminal surface that the end ground the pipe compresses tightly with the tip of stepping down the cover directly or indirectly, and the semicircular groove block is close to the position that the end ground the terminal surface at the needle section.