CN202185748U

CN202185748U - Mechanical arm capable of automatic clamping

Info

Publication number: CN202185748U
Application number: CN2011202376482U
Authority: CN
Inventors: 黄永生
Original assignee: 陈小青
Priority date: 2011-07-07
Filing date: 2011-07-07
Publication date: 2012-04-11
Anticipated expiration: 2021-07-07

Abstract

The utility model discloses a mechanical arm capable of automatic clamping, which has the advantages of accuracy in positioning, high processing precision, as well as time and labor conservation, convenience and quickness in clamping. The mechanical arm capable of automatic clamping solves the technical problem in the prior art that the optical lens processing has the disadvantages of time and labor consumption in clamping, low positioning accuracy, poor processing quality and failure to meet the operating requirements. The mechanical arm capable of automatic clamping comprises a main shaft and a turning face worm gear on the main shaft, the turning face worm gear is connected with a turning face motor through a turning face worm, a corner driving mechanism for changing the pitching angle of the main shaft and a corner locking mechanism are respectively arranged on the two sides of the main shaft, the main shaft is tubular, a sleeve is embedded in a shaft hole at the front end of the main shaft, a pull rod capable of sliding along the axial direction of the sleeve is in key connection with the inside of the sleeve, a leaning body rod is in key connection with the front end of the pull rod, the leaning body rod is fixedly clamped in the sleeve through an elastic chuck, a disc spring is sleeved at the rear end of the pull rod, and the pull rod is propped against a driving connection rod on a cylinder.

Description

A kind of mechanical arm of automated exchanged cutter

Technical field

The utility model relates to a kind of mechanical arm, relates in particular to the mechanical arm of the automated exchanged cutter that is used for optical lens processing that a kind of convenient mounting and clamping is quick, positioning accuracy is high.

Background technology

Optical lens is must indispensable important spare part in the NI Vision Builder for Automated Inspection, and general is applied on the various fine measuring instruments, and the quality of optical lens is the directly quality and the realization of algorithm of influence imaging not only, also direct simultaneously impact effect and certainty of measurement.Optical lens adds man-hour; Generally be the stock that comes the clamping optical lens through mechanical arm, but the stock of optical lens be prone to produce in process radially or the rocking of circumferencial direction, and directly causes the optical lens machining accuracy low thus; Of poor quality, be difficult to satisfy the measuring instrument instructions for use.

Chinese patent " solar energy photoelectric conversion focusing lens processing technology and special fixture thereof (CN101545992A) " discloses a kind of special fixture of solar energy photoelectric conversion focusing lens; It comprises matrix and mould; The upper end of described matrix is provided with the antifriction alloy body; The other end of matrix is equipped with rotor through bearing, the end of rotor be provided with can bonding lens platform, the top of antifriction alloy is provided with pressue device.This device is through bonding lens stock on the platform of rotor tip, and the other end of rotor, is connected with pressue device through the antifriction alloy body in the upper end of matrix on matrix through bearing fixing; Because rotor interts on bearing, add man-hour lens stock and rotate with the rotor circumference direction, between rotor and matrix, there is not axial direction positioning device in simultaneously; The inevitable drive lens stock of rotor is play up and down, is difficult to guarantee the machining accuracy of lens thus, therefore exists the camera lens machining accuracy low equally; Of poor quality; Be difficult to satisfy technical problems such as instructions for use, after the lens process finishing, need manually to remove and install the rotor that is stained with the lens stock simultaneously; Clamping process is loaded down with trivial details, inefficiency.

Summary of the invention

The utility model has mainly provided a kind of accurate positioning, machining accuracy is high; Clamping is time saving and energy saving, the mechanical arm of automated exchanged cutter conveniently; Clamping is wasted time and energy when having solved the optical lens processing that exists in the prior art; Positioning accuracy is low, and crudy is poor, is difficult to satisfy the technical problem of instructions for use etc.

The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: a kind of mechanical arm of automated exchanged cutter; Comprise the commentaries on classics face worm gear on main shaft and the main shaft; Said commentaries on classics face worm gear links to each other with the commentaries on classics surface motor through changeing surface-worm, is respectively equipped with the corner driving mechanism and the corner locking mechanism that change the main shaft pitch angle in the both sides of said main shaft, and said main shaft is a tubulose; In the axis hole of said front-end of spindle, be embedded with sleeve; Being connected with at said sleeve internal key can be along sleeve pull bar in axial sliding, and the front end key of said pull bar is connected with by body rod, said lean on body rod through the collet clamping in sleeve; The rear end of said pull bar is with butterfly spring, and said pull bar offsets through the drive link on butterfly spring and the cylinder.Main shaft realizes that through the commentaries on classics surface motor circumference rotates, and through the corner driving mechanism of main shaft both sides and the pitch angle of change of corner locking mechanism and locking main shaft, gets final product the conversion face thereby need not again clamping, and machining accuracy is high; Sleeve is set in main shaft, comes clamping to be stained with the body rod that leans on of stock through sleeve again, can mate through the body rod that leans on of changing different sleeves and different size, versatility is good; In addition when changing the processing stock, repeated friction is prone to cause the sleeve wearing and tearing between collet and the sleeve of body rod because clamping is leaned on, and therefore only needs the periodic replacement sleeve can satisfy the positioning requirements by body rod, need not to change main shaft, convenience easy to maintenance; The pull bar key is connected in the sleeve axis hole, can prevent that pull bar from rotating in sleeve inner periphery direction, and the body rod key that leans on that is stained with stock is connected the pull bar front end, can prevent to lean on the body rod circumferencial direction to rotate equally, so the stock accurate positioning, and machining accuracy is high; During use, with the back end of tie rod corresponding cylinder through the drive link pushing drawing rod along sleeve lining to front slide, pull bar overcomes the deformation force of butterfly spring and drives synchronously collet and move forward to outside the sleeve by body rod; Pulling leans on body rod promptly dismountable; Change another be equipped with stock lean on body rod to insert in the collet and to be connected, to move after the drive link with pull bar front end key, pull bar promptly moves to Working position after under the restoring force effect of butterfly spring; The automatic contraction clip of collet is near body rod; Clamping process is time saving and energy saving, and is convenient and swift, improved production efficiency.

As preferably; Said sleeve is connected in the main shaft axis hole through the sleeve flat key; The coaxial sleeve conical surface body that is provided with at the middle part of said sleeve outer ring surface; Front end at said main shaft axis hole is provided with the main shaft conical surface hole of joining mutually with sleeve conical surface body, on the sleeve corresponding to sleeve conical surface body front end, is set with clamp nut, and said sleeve is fixed on the main shaft through clamp nut.The sleeve key is connected in the main shaft axis hole, can prevent that the relative main shaft circumferencial direction of sleeve from rotating; Sleeve is connected in the main shaft conical surface hole through sleeve conical surface body, and fixes through clamp nut, and is simple in structure, firm position, easy accessibility.

As more preferably, the tapering in said sleeve conical surface body and main shaft conical surface hole is 6 ° to 10 °.Reasonably tapering can improve the location clamping force of sleeve, guarantees the positioning accuracy of sleeve.

As preferably; The front end of said sleeve axis hole is provided with counterbore; The front end of counterbore is provided with sleeve conical surface hole, and the rear end of said collet is screwed in corresponding on the pull bar in the counterbore, and the outer ring surface of collet and sleeve conical surface hole are joined mutually and be slidingly connected in the sleeve conical surface hole.Collet is positioned at counterbore, and at front end the taper surface of joining mutually is set, and can will be clamped in the collet by body rod through taper surface during the inside slippage of pull bar thus, and clamping force is big, has improved the positioning accuracy of leaning on body rod; The length of collet can make collet be contracted in the sleeve fully less than the length of counterbore, thereby prevents that collet from issuing the erosion phenomenon of getting rusty in the effect of cooling fluid, has guaranteed to lean on the positioning accuracy of body rod.

As more preferably, said sleeve conical surface hole accounts for 1/2 to 1/3 of counterbore length overall, and the tapering in said sleeve conical surface hole is 1 ° to 2 °.Reasonably conical surface length and tapering can improve by body rod location clamping force, improve the positioning accuracy of leaning on body rod.

As preferably; Saidly comprise connecting rod and be vertically connected on the positioning disk of connecting rod front end by body rod; On the rear end face of said connecting rod, be provided with keyway; Said keyway is joined mutually with the boss of pull bar leading section and is linked to each other, and the front end face and the stock of said positioning disk are fixedly linked, and the rear end face of said positioning disk is connected on the front end face of sleeve." T " font lean on body rod, simple in structure, can prevent that cooling fluid is splashed in the sleeve when leaning on positioning disk shutoff on the body rod on the outer face of sleeve, thereby can prevent that barrel bore and parts wherein from producing corrosion phenomena, guarantees to lean on the positioning accuracy of body rod.

As preferably, be connected with in the rearward end of said pull bar and cover the shape adjusting nut, an end apical grafting of said butterfly spring is on the end face of lid shape adjusting nut, and the other end apical grafting of said butterfly spring is on the rear end face of sleeve.Corresponding pull bar spins one and covers the shape adjusting nut in the rear end of butterfly spring; Make cylinder through covering shape adjusting nut compression butterfly spring; The one, prevent that butterfly spring from deviating from pull bar; The 2nd, can offset direction when guaranteeing the butterfly spring compression, cover the shape adjusting nut simultaneously and can prevent again and pull bar corresponding cylinder connecting rod wearing and tearing pull bar during the application of force repeatedly.

As preferably, described collet is the circle tube member that outboard end has some open slots.Through the deflection of open slot increase collet, enlarged the clamping scope of application of collet, improve clamping force.

Therefore, the mechanical arm of a kind of automated exchanged cutter of the utility model has following advantage: through sleeve is set in main shaft, can satisfy instructions for use, convenient for maintaining through the periodic replacement sleeve; Between pull bar and sleeve and lean between body rod and pull bar and all adopt key to be connected, can prevent pull bar in sleeve and lean on the relative pull bar of body rod along the circumferential direction to rotate, stock positioning accuracy height; During clamping, air cylinder connecting rod forward, pull bar drives collet and moving forward to outside the sleeve by body rod synchronously; Remove simultaneously after can will lean on body rod to pull out together with stock, that changes that another is equipped with stock leans on body rod and pull bar to after slotting, and air cylinder connecting rod backward; Pull bar promptly moves to Working position after under the restoring force effect of butterfly spring; Clamping process is time saving and energy saving, and is convenient and swift, and production efficiency is high.

Description of drawings:

Fig. 1 is the structural representation of the mechanical arm of a kind of automated exchanged cutter of the utility model;

Fig. 2 is the axial cutaway view of sleeve;

Fig. 3 is an A place enlarged drawing shown in Figure 1;

Fig. 4 is the axial cutaway view that leans on body rod.

The specific embodiment:

Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.

Embodiment:

As shown in Figure 1, the mechanical arm of a kind of automated exchanged cutter of the utility model comprises through the bearing rotation being supported on the main shaft 1 on the casing; Installed one and changeed the face worm gear through flat key is coaxial at the middle part of main shaft 1, changeed the face worm gear and link to each other with the commentaries on classics surface motor 2 of casing top, a corner driving mechanism that can change main shaft 1 pitch angle has been housed with main shaft 1 parallel casing right side through changeing surface-worm; The corner locking mechanism of lockable main shaft 1 pitch angle is equipped with in casing left side, and main shaft 1 is the pipe shape, and wherein preceding half section axis hole of main shaft 1 is that inner small and outside big, tapering is 8 ° main shaft conical surface hole 11; Sleeve 3 of setting-in in corresponding to main shaft 1 axis hole of main shaft conical surface hole 11 sides, tapering of coaxial formation is 8 ° a sleeve conical surface body 31 at the middle part of sleeve 3 outer ring surfaces, sleeve conical surface body 31 is joined with main shaft conical surface hole 11 mutually; And sleeve 3 is connected in the axis hole of main shaft 1 through sleeve flat key 10 keys, and on corresponding to the sleeve 3 of sleeve conical surface body 31 front ends clamp nut 9 of suit, clamp nut 9 is screwed on the main shaft 1; As shown in Figure 2; Have a counterbore 33 in that the front end of sleeve 3 axis holes is coaxial, the front end of counterbore 33 is that inner small and outside big, tapering is 1 ° sleeve conical surface hole 32, and the length in sleeve conical surface hole 32 accounts for 1/2 of counterbore 33 length overalls; In the axis hole of sleeve 3, connecting one through flat key can be along sleeve 3 pull bar 4 in axial sliding; As shown in Figure 3, the boss of " one " font of front end face middle part processing of pull bar 4, pull bar 4 leans on body rod 5 keys to be connected through the boss of " one " font with one; As shown in Figure 4; Lean on body rod 5 to comprise that connecting rod 51 and integral type are vertically connected on the positioning disk 52 of the circle of connecting rod 51 front ends, on the rear end face of connecting rod 51, have the groove of " an one " font of joining mutually with the boss of " one " font, the boss of " one " font is inserted in the groove of " one " font; Front end face at positioning disk 52 is stained with stock; At pull bar 4 and the collet 6 of outside shroud that leans on body rod 5 junctions, collet 6 has the circle tube member of 6 " U " shape open slots for outboard end, and the rear end of collet 6 is coaxial to be screwed in corresponding to interior pull bar 4 leading sections of counterbore 33; The inner ring surface of collet 6 is clamped on the outer ring surface by body rod 5 rearward end; The outer ring surface of collet 6 and the counterbore at place 33 join mutually and slide debouch counterbore 33 inside and outside, in the time of in collet 6 gets into counterbore 33 fully, the rear end face of positioning disk 52 is connected on the front end face of sleeve 3 and blocks the axis hole of sleeve 3 fully; Be with a butterfly spring 7 in the rear end of pull bar 4; The medial extremity of butterfly spring 7 is connected on the rear end face of sleeve 3, and briquetting of suit on the corresponding pull bar 4 of the outboard end of butterfly spring 7 spins one on the pull bar 4 of briquetting outside correspondence and covers shape adjusting nut 42; Fix a cylinder 8 on the casing trailing flank corresponding with lid shape adjusting nut 42, drive link on the cylinder 8 81 is coaxial to be connected on the outer face of adjusting nut 42.

When the utility model uses, start cylinder 8, drive link 81 pushing drawing rods 4 forward; Pull bar 4 overcomes the deformation force of butterfly spring 7 and drives collet 6 and lean on body rod 5 to move forward synchronously, 15mm outside collet 6 stretches out sleeve 3, and pulling leans on body rod 5 outside; Lean on body rod 5 to remove simultaneously, get another body rod 5 that leans on that stock is housed to be processed and insert in the collets 6, lean on 2 pairs on body rod 5 and pull bar to insert the back key and link together together with stock; Start cylinder 8, drive link 81 is retreated, and pull bar 4 promptly moves after under the restoring force effect of butterfly spring 7; Behind collet 6, move to its front end face and be lower than sleeve 3 outer face 3mm; And lean on positioning disk 52 inner faces on the body rod 5 to be connected on the outer face of sleeve 3 and block the axis hole of sleeve 3, can each size of stock be alignd automatically in the time of clamping, guarantee the uniformity of product size and the uniformity of cutter; It is time saving and energy saving, convenient and swift to operate.

Specific embodiment described herein only is that the design to the utility model illustrates.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.

Claims

1. the mechanical arm of an automated exchanged cutter; Comprise the commentaries on classics face worm gear on main shaft (1) and the main shaft (1); Said commentaries on classics face worm gear links to each other with commentaries on classics surface motor (2) through changeing surface-worm; Be respectively equipped with corner driving mechanism and the corner locking mechanism that changes main shaft (1) pitch angle in the both sides of said main shaft (1); It is characterized in that: said main shaft (1) is a tubulose, in the axis hole of said main shaft (1) front end, is embedded with sleeve (3), and being connected with at said sleeve (3) internal key can be along sleeve (3) pull bar (4) in axial sliding; The front end key of said pull bar (4) is connected with by body rod (5); The said body rod (5) that leans on passes through collet (6) clamping in sleeve (3), and the rear end of said pull bar (4) is with butterfly spring (7), and said pull bar (4) offsets through the drive link (81) on butterfly spring (7) and the cylinder (8).

2. the mechanical arm of a kind of automated exchanged cutter according to claim 1; It is characterized in that: said sleeve (3) is connected in main shaft (1) axis hole through sleeve flat key (10); The coaxial sleeve conical surface body (31) that is provided with at the middle part of said sleeve (3) outer ring surface; Front end at said main shaft (1) axis hole is provided with the main shaft conical surface hole (11) of joining mutually with sleeve conical surface body (31); On the sleeve (3) corresponding to sleeve conical surface body (31) front end, be set with clamp nut (9), said sleeve (3) is fixed on the main shaft (1) through clamp nut (9).

3. the mechanical arm of a kind of automated exchanged cutter according to claim 2, it is characterized in that: the tapering in said sleeve conical surface body (31) and main shaft conical surface hole (11) is 6 ° to 10 °.

4. according to the mechanical arm of claim 1 or 2 or 3 described a kind of automated exchanged cutters; It is characterized in that: the front end of said sleeve (3) axis hole is provided with counterbore (33); The front end of counterbore (33) is provided with sleeve conical surface hole (32); The rear end of said collet (6) is screwed in corresponding on the pull bar (4) in the counterbore (33), and the outer ring surface of collet (6) and sleeve conical surface hole (32) are joined mutually and be slidingly connected in the sleeve conical surface hole (32).

5. the mechanical arm of a kind of automated exchanged cutter according to claim 4, it is characterized in that: said sleeve conical surface hole (32) accounts for 1/2 to 1/3 of counterbore (33) length overall, and the tapering in said sleeve conical surface hole (32) is 1 ° to 2 °.

6. according to the mechanical arm of claim 1 or 2 or 3 described a kind of automated exchanged cutters; It is characterized in that: the said positioning disk (52) that leans on body rod (5) to comprise connecting rod (51) and be vertically connected on connecting rod (51) front end; On the rear end face of said connecting rod (51), be provided with keyway (53); Said keyway (53) is joined mutually with the boss (41) of pull bar (4) leading section and is linked to each other; The front end face and the stock of said positioning disk (52) are fixedly linked, and the rear end face of said positioning disk (52) is connected on the front end face of sleeve (3).

7. the mechanical arm of a kind of automated exchanged cutter according to claim 5; It is characterized in that: the said positioning disk (52) that leans on body rod (5) to comprise connecting rod (51) and be vertically connected on connecting rod (51) front end; On the rear end face of said connecting rod (51), be provided with keyway (53); Said keyway (53) is joined mutually with the boss (41) of pull bar (4) leading section and is linked to each other; The front end face and the stock of said positioning disk (52) are fixedly linked, and the rear end face of said positioning disk (52) is connected on the front end face of sleeve (3).

8. according to the mechanical arm of claim 1 or 2 or 3 described a kind of automated exchanged cutters; It is characterized in that: be connected with in the rearward end of said pull bar (4) and cover shape adjusting nut (42); One end apical grafting of said butterfly spring (7) is on the end face of lid shape adjusting nut (42), and the other end apical grafting of said butterfly spring (7) is on the rear end face of sleeve (3).

9. the mechanical arm of a kind of automated exchanged cutter according to claim 7; It is characterized in that: be connected with in the rearward end of said pull bar (4) and cover shape adjusting nut (42); One end apical grafting of said butterfly spring (7) is on the end face of lid shape adjusting nut (42), and the other end apical grafting of said butterfly spring (7) is on the rear end face of sleeve (3).

10. according to the mechanical arm of claim 1 or 2 or 3 described a kind of automated exchanged cutters, it is characterized in that: described collet (6) has the circle tube member of some open slots for outboard end.