CN114918749A - Micro-drill processing is with finely tuning clamping machine structure - Google Patents
Micro-drill processing is with finely tuning clamping machine structure Download PDFInfo
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- CN114918749A CN114918749A CN202210704886.2A CN202210704886A CN114918749A CN 114918749 A CN114918749 A CN 114918749A CN 202210704886 A CN202210704886 A CN 202210704886A CN 114918749 A CN114918749 A CN 114918749A
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- Prior art keywords
- righting
- bar
- rod
- block
- micro
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Abstract
The application discloses a micro-drilling machining fine-adjustable clamping mechanism, which comprises an installation base, wherein a bar arranging mechanism, a bar limiting mechanism and a needle head righting mechanism are arranged on the installation base, the bar arranging mechanism is used for arranging bars to be machined, the bar limiting mechanism is used for limiting the bars to be machined on the bar arranging mechanism, and the needle head righting mechanism is used for correcting the concentricity of a drill needle and the bars; the needle head righting mechanism comprises a needle head righting rod, a righting pushing mechanism and a righting adjusting mechanism, the needle head righting rod is respectively connected with the righting pushing mechanism and the righting adjusting mechanism, the righting pushing mechanism is used for driving the needle head righting rod to abut against the drill bit, and the righting adjusting mechanism is used for adjusting the abutting position and force of the needle head righting rod and the drill bit. This application is right pole and is right adjustment mechanism through the syringe needle, can ensure constantly that the microbit adds the concentricity of bar and drill point in man-hour, improves the yields.
Description
Technical Field
The application belongs to the field of micro-drill processing equipment, and more particularly relates to a micro-drill processing fine-adjustable clamping mechanism.
Background
Drill bits with a diameter of less than 3.175mm are commonly referred to as micro-drills, micro-drills for short. The micro drill mainly comprises a bar at the bottom and a drill point at the upper part, and the micro drill needs to pass through a plurality of stations in the processing process, and the bar needs to be clamped and fixed in each station, so that the bar can be conveniently ground. In order to ensure the machining precision of the micro drill, higher requirements are put forward for a clamping mechanism, the stability of a bar on the clamping mechanism needs to be ensured constantly, and meanwhile, the concentricity of the bar and a drill point also needs to be ensured.
In the processing process of a clamping mechanism on the existing equipment, the clamping mechanism and a bar material are in a limiting fixed connection mode, only can play a role of fixing a workpiece, and the concentricity and the stability in the micro-drilling processing process cannot be ensured constantly; when the micro-drill is eccentric in the machining process, corresponding adjustment cannot be carried out, so that the machining reject ratio is higher.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a micro-drillable clamping mechanism for machining, which comprises an installation base, wherein a bar placing mechanism, a bar limiting mechanism and a needle head righting mechanism are arranged on the installation base, the bar placing mechanism is used for placing a bar to be machined, the bar limiting mechanism is used for limiting the bar to be machined on the bar placing mechanism, and the needle head righting mechanism is used for correcting the concentricity of a drill needle and the bar; the needle head righting mechanism comprises a needle head righting rod, a righting pushing mechanism and a righting adjusting mechanism, the needle head righting rod is respectively connected with the righting pushing mechanism and the righting adjusting mechanism, the righting pushing mechanism is used for driving the needle head righting rod to be abutted against the drill bit, and the righting adjusting mechanism is used for adjusting the abutting position and force of the needle head righting rod and the drill bit.
As a further improvement of this application, it promotes the piece and right the pole installation piece including righting the fixed block, righting to right the pushing mechanism, right the fixed block with the installation base is connected, right the middle part that promotes the piece with it is articulated to right the fixed block, the pole is right to the syringe needle with it connects to right the pole installation piece, right the pole installation piece with it connects to right the one end that promotes the piece, it is the free end to right the other end that promotes the piece, the free end is used for external thrust to promote it promotes to right the promotion piece swing.
As a further improvement of the present application, the righting adjusting mechanism includes an elevation angle adjusting block, the righting rod mounting block is provided with a first through hole and a second through hole, the first through hole is communicated with the second through hole, the first through hole and the second through hole are vertically distributed, the elevation angle adjusting block is inserted into the first through hole, and the elevation angle adjusting block is rotatably connected with the righting rod mounting block in a limiting manner; the elevation angle adjusting block is internally provided with a third through hole, the needle head righting rod sequentially penetrates through the second through hole and the third through hole, the needle head righting rod is in limit connection with the elevation angle adjusting block, and the inner diameter of the second through hole is larger than the outer diameter of the needle head righting rod.
As a further improvement of this application, be equipped with canceling release mechanical system on righting the fixed block, canceling release mechanical system's one end with right the fixed block and be connected, canceling release mechanical system's the other end with right the one end that promotes the piece and be close to right the pole installation piece and connect, canceling release mechanical system is used for the drive the pole is right to the syringe needle and the drill point separation.
As a further improvement of the application, the bar stock limiting mechanism comprises a guide wheel mechanism, a pressing wheel mechanism and a bar stock righting mechanism, the guide wheel mechanism is connected with the mounting base, and the guide wheel mechanism can drive a bar stock to rotate on the bar stock arranging mechanism; the guide wheel mechanism comprises a driving motor and a guide wheel, the driving motor is connected with the mounting base, and the guide wheel is connected with the output end of the driving motor.
As a further improvement of this application, pinch roller mechanism is including driving actuating cylinder, link gear and pinch roller, drive actuating cylinder with the erection base is connected, link gear with the output that drives actuating cylinder is connected, the pinch roller with the rotatable spacing connection of link gear, link gear can drive the pinch roller motion.
As the further improvement of this application, link gear includes connecting rod and pendulum rod, the one end of connecting rod with drive actuating cylinder and connect, the other end with the pendulum rod is connected, the middle part of pendulum rod with the installation base is articulated, the pinch roller with the pendulum rod is kept away from the rotatable spacing connection of one end of connecting rod.
As a further improvement of this application, the mechanism is right to the bar includes the base and rights the regulating block, the base with the erection base is connected, right the regulating block with pedestal connection, it is equipped with wear-resisting piece on the regulating block to right.
As a further improvement of this application, the bar stock arrangement mechanism includes liftout cylinder and thimble, the liftout cylinder with the installation base is connected, the thimble with the output of liftout cylinder is connected.
As a further improvement of the application, the installation base is provided with a sensor at a position corresponding to the ejector pin, and the sensor is used for detecting whether the bar on the ejector pin is in place.
Compared with the prior art, the beneficial effect of this application is:
1. this application is provided with bar stop gear, can be spacing on bar arrangement mechanism with the bar, ensures the stability of bar installation.
2. The centering degree of the bar and the drill point during micro-drilling can be ensured by arranging the centering pushing mechanism and the needle head centering rod, and the yield of the micro-drilling is improved; specifically, the righting and pushing mechanism pushes the needle righting rod to be righted to be propped against the drill point during working, so that the drill point is prevented from being bent laterally, the side wall of the outer circumference of the drill point can be uniformly ground, and the concentricity of a bar material and the drill point is ensured.
3. When the micro drill is eccentric in the machining process, the correction can be carried out in time, so that the yield of machining is ensured; specifically, the mounting position of the needle head righting rod is adjusted by operating the righting adjusting mechanism, so that the abutting position and force of the needle head righting rod and the drill point are adjusted, and the concentricity of the bar material and the drill point is ensured.
Drawings
In order to more clearly illustrate the present application or prior art solutions, a brief description of the drawings needed for the embodiments or prior art descriptions is provided below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an operating state of an embodiment of the present application;
FIG. 3 is a schematic view of the needle centralizer mechanism according to the embodiment of the present application;
FIG. 4 is an exploded view of the centering adjustment mechanism in the embodiment of the present application;
fig. 5 is an exploded view of the bar centering mechanism in the embodiment of the present application.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the micro-drill processing fine-adjustable clamping mechanism is used for being mounted on a fine grinder to grind a micro-drill, the micro-drill mainly comprises a bar material at the bottom and a drill point at the upper part, the fine grinder is provided with a machine table and a controller, the machine table is provided with a mechanical arm and a grinding mechanism, the controller can control the mechanical arm to feed and discharge the micro-drill processing fine-adjustable clamping mechanism, and can control the grinding mechanism to move to a corresponding position of the micro-drill processing fine-adjustable clamping mechanism to grind the bar material.
The micro-drill machining micro-adjustable clamping mechanism comprises an installation base 1, wherein a bar placing mechanism 2, a bar limiting mechanism and a needle head righting mechanism 3 which are respectively connected with a controller are arranged on the installation base 1. The bar stock arranging mechanism 2 is used for arranging a bar stock to be processed, plays a role of supporting the bar stock during processing, and is also used for ejecting the bar stock out of the micro-drilling processing micro-adjustable clamping mechanism; the bar limiting mechanism is used for limiting the bar to be processed on the bar arranging mechanism 2, so that the bar is prevented from shifting in the processing process, and the processing precision is improved; the needle head righting mechanism 3 is used for correcting the concentricity of the drill point and the bar, and can play a supporting role on the drill point during the processing of the refiner, so that the lateral bending of the drill point is prevented, and the concentricity of the drill point and the bar is improved.
When the micro-drill machining micro-adjustable clamping mechanism is used for feeding materials, a mechanical arm grabs and places a bar to be machined on the bar placing mechanism 2, the controller controls the bar limiting mechanism to work, and the bar to be machined is limited and fixed on the bar placing mechanism 2; add man-hour, 3 start work of mechanism are right to the syringe needle, and 3 support drill point of mechanism are right to the syringe needle, and the grinding mechanism of refiner carries out abrasive machining to the drill point, supports the drill point through mechanism 3 is right to the syringe needle, can ensure that the drill point can not the lateral buckling in abrasive machining process to the concentricity of guarantee drill point and bar.
The needle head righting mechanism 3 comprises a righting fixed block 31, a righting pushing block 32, a righting rod installation block 33 and a needle head righting rod 34, the righting fixed block 31 is connected with the installation base 1, the middle of the righting pushing block 32 is hinged to the righting fixed block 31, the righting pushing block 32 can swing by taking a hinged point as an axis, the needle head righting rod 34 is connected with the righting rod installation block 33, the righting rod installation block 33 is connected with one end of the righting pushing block 32, the other end of the righting pushing block 32 is a free end 321, the free end 321 is used for pushing the righting pushing block 32 to swing through external thrust, and therefore the needle head righting rod 34 is driven to abut against a drill needle.
In this embodiment, the external thrust of the free end 321 is the push rod 4, the push rod 4 is connected with the grinding mechanism of the refiner, and the grinding mechanism can drive the push rod 4 to move. During work, the grinding mechanism approaches to the direction of the bar, so that the push rod 4 is driven to move, the push rod 4 is enabled to be abutted against the free end 321 of the centering push block 32, the centering push block 32 is pushed to swing, and the centering push block 32 pushes the centering rod mounting block 33 and the needle centering rod 34 to move; when the grinding mechanism stops moving, the push rod 4 can push the needle tip righting rod 34 to abut against the drill needle. The grinding mechanism of the refiner is provided with a push rod fixing block 41, the push rod fixing block 41 is provided with a micrometer 42, the push rod 4 is fixedly connected with a screw rod of the micrometer 42, the extension length of the push rod 4 can be adjusted by rotating the micrometer 42, and the extension length of the push rod 4 is adjusted, so that the movement stroke of the needle head righting rod 34 is adjusted, the butt strength of the needle head righting rod 34 to a drill needle is changed, and the concentricity of the drill needle and a bar material during processing is ensured. The micrometer 42 can select a micrometer caliper for removing a frame in the prior art, scales are arranged on the micrometer body, and the adjusting precision can reach 0.01 mm.
The righting fixed block 31 is provided with a reset mechanism, and the reset mechanism is used for driving the righting pushing block 32 to reset, so that the needle righting rod 34 is driven to be separated from the drill needle, and blanking is facilitated; specifically, the reset mechanism comprises a reset spring 35, one end of the reset spring 35 is fixedly connected with the righting fixed block 31, and the other end of the reset spring is fixedly connected with one end, close to the righting rod installation block 33, of the righting pushing block 32; when the grinding mechanism of the refiner is in operation, the push rod 4 is driven by the grinding mechanism of the refiner to abut against the centering push block 32 and push the centering push block 32 to swing, the thrust of the push rod 4 is greater than the elastic force of the return spring 35, so that the centering push block 32 stretches the return spring 35, and the return spring 35 elastically deforms; after the processing is finished, the grinding mechanism of the refiner resets to drive the push rod 4 to move so as to separate the push rod from the righting push block 32, and at the moment, under the action of the elastic force of the reset spring 35, the righting push block 32 is pulled to reset and swing so as to drive the needle righting rod 34 to reset and move so as to separate the needle righting rod from the drill point, so that the manipulator can grab and discharge materials conveniently.
The righting rod mounting block 33 is provided with a righting adjusting mechanism which is used for adjusting the mounting position of the needle righting rod 34, so that the abutting position and force of the needle righting rod 34 and the drill needle are adjusted.
Specifically, the righting rod mounting block 33 is provided with an elongated slot 331, the elongated slot 331 is provided with a first limit screw 332, the first limit screw 332 is connected with the righting pushing block 32, and the righting rod mounting block 33 and the righting pushing block 32 are fixed in a limiting manner by screwing the first limit screw 332; an adjusting screw 333 is arranged on one side of the righting rod mounting block 33, the adjusting screw 333 is in adjustable threaded connection with the righting rod mounting block 33, and the end face of the adjusting screw 333 is abutted against the righting pushing block 32; when the installation position of the righting rod installation block 33 needs to be adjusted, a user can loosen the first limit screw 332, and then rotate the adjusting screw 333 to enable the first limit screw 332 to slide on the elongated clamping groove 331, so that the installation position of the righting rod installation block 33 on the righting pushing block 32 is changed, and after the right position is reached, the first limit screw 332 is screwed again; the mounting position of the centering bar mounting block 33 is changed, and the abutment position of the needle centering bar 34 with the drill bit is also changed.
The righting rod mounting block 33 is provided with a first through hole 334 and a second through hole 335, the first through hole 334 is communicated with the second through hole 335, the first through hole 334 and the second through hole 335 are vertically distributed, an elevation angle adjusting block 36 is arranged in the first through hole 334, the elevation angle adjusting block 36 is in clearance fit with the first through hole 334, the righting rod mounting block 33 is provided with a second limiting screw 336, and the end face of the second limiting screw 336 is abutted against the side wall of the elevation angle adjusting block 36, so that the elevation angle adjusting block 36 and the righting rod mounting block 33 are fixed in a limiting manner; a third through hole 361 is arranged in the elevation angle adjusting block 36, the needle righting rod 34 sequentially penetrates through the second through hole 335 and the third through hole 361, the needle righting rod 34 is in clearance fit with the third through hole 361, a third limiting screw 362 is arranged on the elevation angle adjusting block 36, the end face of the third limiting screw 362 is abutted against the needle righting rod 34, so that the needle righting rod 34 is fixedly connected with the elevation angle adjusting block 36 in a limiting mode, the inner diameter of the second through hole 335 is larger than the outer diameter of the needle righting rod 34, and the needle righting rod 34 can swing up and down in the second through hole 335. When the adjustment is needed, the user can loosen the second limiting screw 336, the elevation angle adjusting block 36 can rotate in the first through hole 334, so that the needle head righting rod 34 is driven to swing up and down in the second through hole 335, the installation angle of the needle head righting rod 34 is adjusted, and the abutting position of the needle head righting rod 34 and the drill point is changed; when the third limit screw 362 is loosened, the needle straightening rod 34 can slide in the second through hole 335, so as to adjust the length of the needle straightening rod 34 extending out of the straightening rod mounting block 33, and thus change the abutting force of the needle straightening rod 34 on the drill bit. In order to adjust the needle straightening rod 34, a handle 37 is arranged at one end of the needle straightening rod 34 far away from the drill needle, and the handle 37 is fixedly connected with the needle straightening rod 34, so that the manual adjustment of a user is facilitated.
The bar material arranging mechanism 2 comprises a material ejecting cylinder 21 and an ejector pin 22, the material ejecting cylinder 21 is fixedly connected with the mounting base 1 through an ejecting fixing seat 23, the material ejecting cylinder 21 is connected with a controller, and the ejector pin 22 is connected with the output end of the material ejecting cylinder 21; a sensor 24 is arranged on the mounting base 1 at a position corresponding to the thimble 22, and the sensor 24 is connected with the controller and is used for detecting whether the bar stock on the thimble 22 is in place. When the micro-drilling machining is used for feeding materials, the controller controls the material ejection cylinder 21 to work to push the ejector pin 22 to ascend, the mechanical arm of the refiner places the bar materials on the ejector pin 22, and the ejector pin 22 can support the bottom end of the bar materials; and controlling the material ejecting cylinder 21 to reset to drive the ejector pin 22 and the bar material to descend to a processing position, feeding back a signal to the controller when the sensor 24 detects that the bar material on the ejector pin 22 is in place, and controlling the bar material limiting mechanism to work by the controller to limit the bar material on the ejector pin 22. After the processing is finished, the controller controls the material ejecting cylinder 21 to work, the ejector pin 22 is pushed to ascend, the ejector pin 22 ejects the bar material, and a manipulator can conveniently grab the processed bar material.
The bar limiting mechanism comprises a guide wheel mechanism 5, a pressing wheel mechanism 6 and a bar righting mechanism 7, and during machining, the side wall of the bar is respectively abutted against the guide wheel mechanism 5, the pressing wheel mechanism 6 and the bar righting mechanism 7, so that the bar is vertically limited and fixed on the thimble 22; the guide wheel mechanism 5 is connected with the controller and can drive the bar to rotate on the thimble 22 in situ, so that the circumferential side wall of the drill point can be uniformly ground, and the concentricity of the bar and the drill point is improved; the pressing wheel mechanism 6 is connected with a controller, and after the feeding is finished, the controller controls the pressing wheel mechanism 6 to be abutted against the bar, so that the bar is limited on the thimble 22; the bar straightening mechanism 7 is fixedly connected with the mounting base 1 and used for supporting the side wall of a bar, on one hand, the bar can be conveniently vertically arranged on the ejector pin 22 by a manipulator, on the other hand, the bar can be limited and fixed during processing, the bar cannot be displaced on the ejector pin 22, and the processing precision is improved.
The guide wheel mechanism 5 comprises a driving motor 51 and a guide wheel 52, the driving motor 51 is connected with the controller, the driving motor 51 is fixedly installed on the installation base 1, and the output end of the driving motor 51 is fixedly connected with the guide wheel 52 through a transmission shaft. When the device works, the outer side wall of the guide wheel 52 is abutted to the side wall of the bar, the controller controls the driving motor 51 to work, the driving motor 51 drives the guide wheel 52 to rotate, and the guide wheel 52 drives the bar to rotate in place. The guide wheel 52 can limit the bar material and drive the bar material to rotate, so that the circumferential side face of the drill point can be uniformly ground.
In this embodiment, the linkage mechanism includes a connecting rod 64 and a swing rod 65, one end of the connecting rod 64 is fixedly connected with the output end of the driving cylinder 61, the other end is fixedly connected with the swing rod 65, the middle part of the swing rod 65 is hinged to the mounting base 1, the swing rod 65 can swing by taking the hinge point as the axis, the pressing wheel 62 is mounted at one end of the swing rod 65 far away from the connecting rod 64, and the pressing wheel 62 can rotate on the swing rod 65 in situ. During specific work, the driving cylinder 61 drives the connecting rod 64 to move, the connecting rod 64 pulls or pushes the swing rod 65 to move, and the swing rod 65 swings with the hinge point as the axis, so that the pressing wheel 62 is driven to move in the direction far away from or close to the guide wheel 52. In other embodiments, the linkage mechanism may have other structures as long as the driving force of the driving cylinder 61 can be transmitted to the pressing wheel 62, and the pressing wheel 62 can rotate.
The bar straightening mechanism 7 is installed on one side of the guide wheel mechanism 5, the bar straightening mechanism 7 comprises a base 71 and a straightening adjusting block 72, the base 71 is fixedly installed on the installation base 1 through screws, the straightening adjusting block 72 is in adjustable limit connection with the base 71, a first wear-resistant block 73 is arranged at one end, close to the ejector pin 22, of the straightening adjusting block 72, and the first wear-resistant block 73 is fixedly connected with the straightening adjusting block 72 through screws; when the device works, the first wear-resistant block 73 is abutted to the bar stock, and the bar stock rotates on the ejector pin and is in a sliding friction state with the first wear-resistant block 73; the first wear-resistant block 73 is arranged, so that abrasion can be prevented, the stability of micro-drilling machining is improved, and the precision of micro-drilling machining is ensured. Meanwhile, in order to prevent the abrasion of the needle tip centering rod 34 caused by the rotation of the drill needle during operation, a second wear-resistant block 38 is arranged at one end of the needle tip centering rod 34 close to the drill needle, and the second wear-resistant block 38 is fixedly connected with the needle tip centering rod 34 through a screw. The first wear-resistant block 73 and the second wear-resistant block 37 are both made of polycrystalline diamond materials, so that the wear resistance is good, the service life can be prolonged, and the processing stability can be improved.
The centering adjusting block 72 and the base 71 adopt an adjustable connection mode, so as to meet the processing requirements of bars with different diameters. Specifically, a clamping groove 711 matched with the overall dimension of the centering adjusting block 72 is arranged on the base 71, the centering adjusting block 72 is limited in the clamping groove 711, an internal threaded hole 712 is arranged on the clamping groove 711, a waist-shaped hole 721 is arranged on the centering adjusting block 72, and the waist-shaped hole 721 is connected with the internal threaded hole 712 through a screw; an adjusting screw 74 is arranged at one end, far away from the first wear-resistant block 73, of the centering adjusting block 72, the adjusting screw 74 is in adjustable threaded connection with the centering adjusting block 72, the other end of the adjusting screw 74 is fixedly clamped with the base 71, a spring 75 is sleeved on the adjusting screw 74, and two ends of the spring 75 are respectively connected with the base 71 and the centering adjusting block 72; the spring 75 is arranged to facilitate pushing of the centering adjusting block 72, and to prevent the centering adjusting block 72 from being loosely connected with the base 71, so as to improve structural stability. When adjustment is needed, the connecting screws of the waist-shaped hole 721 and the internal threaded hole 712 are loosened, then the adjusting screw 74 is rotated, the adjusting screw 74 pushes or pulls the centering adjusting block 72 to slide in the clamping groove 711, and the connecting screws of the waist-shaped hole 721 and the internal threaded hole 712 are screwed down after the adjusting screw 74 reaches a proper position, so that the distance from the first wear-resistant block 73 to the ejector pin 22 is adjusted, and the processing requirements of bars with different diameters are met.
The working principle is as follows:
when the micro-drilling machining is used for feeding materials to the fine-adjustable clamping mechanism, the controller controls the material ejection cylinder 21 to work, the ejector pin 22 is pushed to ascend, the mechanical arm of the fine grinder places the bar material on the ejector pin 22, and the ejector pin 22 supports the bottom end of the bar material; and controlling the material ejecting cylinder 21 to reset to drive the ejector pin 22 and the bar to descend to the processing position, feeding back a signal to the controller when the sensor 24 detects that the bar on the ejector pin 22 is in place, controlling the guide wheel mechanism 5 to work by the controller, and connecting the first wear-resistant block 73 and the guide wheel 52 with the side wall of the bar respectively. Then, the controller controls the driving cylinder 61 to work, the driving cylinder 61 drives the connecting rod 64 to move, the connecting rod 64 pushes the swing rod 65 to swing by taking the hinge point as an axis, and therefore the pressing wheel 62 is driven to move towards the direction close to the guide wheel 52 until the pressing wheel 62 is abutted against the side wall of the bar, and feeding is completed; at this time, the bottom end of the bar is limited by the thimble 22, and the side wall is respectively limited and abutted with the first wear-resistant block 73, the guide wheel 52 and the pressing wheel 62.
During processing, the controller controls the grinding mechanism to move towards the direction close to the bar stock and controls the driving motor 51 to work; the grinding mechanism drives the push rod 4 to move, so that the push rod 4 is abutted against the free end of the centralizing push block 32 to push the centralizing push block 32 to swing, the centralizing push block 32 pushes the centralizing rod mounting block 33 and the needle head centralizing rod 34 to move until the second wear-resisting block 38 on the needle head centralizing rod 34 is abutted against the drill point, the second wear-resisting block 38 can play a role in supporting the drill point, the drill point is prevented from being bent laterally in the machining process, and the concentricity of the drill point and a bar material is improved; the driving motor 51 works to drive the guide wheel 52 to rotate, the guide wheel 52 drives the bar to rotate in place, the pressing wheel 62 rotates along with the bar, and the circumferential side wall of the drill point can be uniformly ground by the rotation processing of the bar. The centering pusher block 32 stretches the return spring 35 during oscillation, so that the return spring 35 is elastically deformed.
After the processing is finished, the controller controls the grinding mechanism to move towards the direction away from the bar stock and controls the driving cylinder 61 to work; the grinding mechanism drives the push rod 4 to be separated from the free end of the centralizing push block 32, and at the moment, under the action of the elastic force of the return spring 35, the centralizing push block 32 is pulled to reset and swing, so that the needle centralizing rod 34 is driven to reset and move, and the second wear-resisting block 38 is separated from the drill point; the driving cylinder 61 drives the connecting rod 64 to move, the connecting rod 64 pulls the swing rod 65 to swing by taking the hinge point as the axis, so that the pressing wheel 62 is driven to move in the direction far away from the guide wheel 52 until the pressing wheel 62 is separated from the bar stock; the controller controls the ejector cylinder 21 to work, the ejector pin 22 and the processed product are pushed to ascend, and the mechanical arm of the refiner takes the processed product from the ejector pin 22.
It should be understood that the above-described embodiments are merely exemplary of some, and not all, embodiments of the present application, and that the drawings illustrate preferred embodiments of the present application without limiting the scope of the claims appended hereto. This application is capable of embodiments in many different forms and is provided for the purpose of providing a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications can be made to the embodiments described in the foregoing detailed description, or equivalents can be substituted for some of the features described therein. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (10)
1. The utility model provides a but micro drill processing is with fine setting clamping machine constructs which characterized in that: the device comprises an installation base, wherein a bar placing mechanism, a bar limiting mechanism and a needle head righting mechanism are arranged on the installation base, the bar placing mechanism is used for placing a bar to be processed, the bar limiting mechanism is used for limiting the bar to be processed on the bar placing mechanism, and the needle head righting mechanism is used for correcting the concentricity of a drill point and the bar;
the needle head righting mechanism comprises a needle head righting rod, a righting pushing mechanism and a righting adjusting mechanism, the needle head righting rod is respectively connected with the righting pushing mechanism and the righting adjusting mechanism, the righting pushing mechanism is used for driving the needle head righting rod to abut against the drill bit, and the righting adjusting mechanism is used for adjusting the abutting position and force of the needle head righting rod and the drill bit.
2. The micro-drilling machining fine-adjustable clamping mechanism according to claim 1, characterized in that: the righting pushing mechanism comprises a righting fixing block, a righting pushing block and a righting rod mounting block, the righting fixing block is connected with the mounting base, the middle of the righting pushing block is hinged to the righting fixing block, the needle righting rod is connected with the righting rod mounting block, the righting rod mounting block is connected with one end of the righting pushing block, the other end of the righting pushing block is a free end, and the free end is used for pushing external thrust to righting the pushing block to swing.
3. The micro-drilling machining fine-adjustable clamping mechanism according to claim 2, characterized in that: the righting adjusting mechanism comprises an elevation angle adjusting block, a first through hole and a second through hole are formed in the righting rod mounting block, the first through hole is communicated with the second through hole, the first through hole and the second through hole are vertically distributed, the elevation angle adjusting block is inserted into the first through hole, and the elevation angle adjusting block is in rotatable limit connection with the righting rod mounting block;
the elevation angle adjusting block is internally provided with a third through hole, the needle head righting rod sequentially penetrates through the second through hole and the third through hole, the needle head righting rod is in limit connection with the elevation angle adjusting block, and the inner diameter of the second through hole is larger than the outer diameter of the needle head righting rod.
4. The micro-drilling machining fine-adjustable clamping mechanism according to claim 2, characterized in that: the needle head righting device is characterized in that a resetting mechanism is arranged on the righting fixed block, one end of the resetting mechanism is connected with the righting fixed block, the other end of the resetting mechanism is connected with one end, close to the righting rod mounting block, of the righting pushing block, and the resetting mechanism is used for driving the needle head righting rod to be separated from the drill point.
5. The fine-adjustable clamping mechanism for micro-drilling machining according to any one of claims 1 to 4, wherein: the bar limiting mechanism comprises a guide wheel mechanism, a pressing wheel mechanism and a bar centering mechanism, the guide wheel mechanism is connected with the mounting base, and the guide wheel mechanism can drive a bar to rotate on the bar mounting mechanism;
the guide wheel mechanism comprises a driving motor and a guide wheel, the driving motor is connected with the mounting base, and the guide wheel is connected with the output end of the driving motor.
6. The micro-drilling machining micro-adjustable clamping mechanism according to claim 5, characterized in that: the pinch roller mechanism is including driving actuating cylinder, link gear and pinch roller, drive actuating cylinder with the installation base is connected, link gear with the output that drives actuating cylinder is connected, the pinch roller with the rotatable spacing of link gear is connected, link gear can drive the pinch roller motion.
7. The micro-drilling machining micro-adjustable clamping mechanism according to claim 6, wherein the micro-drilling machining micro-adjustable clamping mechanism comprises: the linkage mechanism comprises a connecting rod and a swing rod, one end of the connecting rod is connected with the driving cylinder, the other end of the connecting rod is connected with the swing rod, the middle of the swing rod is hinged to the mounting base, and the pressing wheel is connected with the swing rod in a rotatable limiting mode, wherein the end, far away from the connecting rod, of the pressing wheel.
8. The micro-drilling machining micro-adjustable clamping mechanism according to claim 5, characterized in that: the bar straightening mechanism comprises a base and a straightening adjusting block, the base is connected with the mounting base, the straightening adjusting block is connected with the base, and a wear-resistant block is arranged on the straightening adjusting block.
9. The micro-drillable clamping mechanism according to any one of claims 1-4 or 6-8, wherein: the bar stock arranging mechanism comprises a material ejecting cylinder and an ejector pin, the material ejecting cylinder is connected with the mounting base, and the ejector pin is connected with the output end of the material ejecting cylinder.
10. The micro-drilling machining micro-adjustable clamping mechanism according to claim 9, characterized in that: and a sensor is arranged at a position on the mounting base corresponding to the ejector pin and used for detecting whether the bar on the ejector pin is in place or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210704886.2A CN114918749A (en) | 2022-06-21 | 2022-06-21 | Micro-drill processing is with finely tuning clamping machine structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210704886.2A CN114918749A (en) | 2022-06-21 | 2022-06-21 | Micro-drill processing is with finely tuning clamping machine structure |
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| CN114918749A true CN114918749A (en) | 2022-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117532417A (en) * | 2023-10-19 | 2024-02-09 | 东莞市梵宇自动化科技有限公司 | Coarse and fine grinding follow rest |
-
2022
- 2022-06-21 CN CN202210704886.2A patent/CN114918749A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117532417A (en) * | 2023-10-19 | 2024-02-09 | 东莞市梵宇自动化科技有限公司 | Coarse and fine grinding follow rest |
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