CN203863338U - Mechanical device used for work posture simulation of milling main shaft unit - Google Patents
Mechanical device used for work posture simulation of milling main shaft unit Download PDFInfo
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- CN203863338U CN203863338U CN201320874701.9U CN201320874701U CN203863338U CN 203863338 U CN203863338 U CN 203863338U CN 201320874701 U CN201320874701 U CN 201320874701U CN 203863338 U CN203863338 U CN 203863338U
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Abstract
A mechanical device used for work posture simulation of a milling main shaft unit is structurally characterized in that the tested milling main shaft unit is fixed to a large disc capable of rotating in a vertical plane through a linkage flange, the large disc can rotate along the axis of itself by means of middle transmission of a steel wire rope under the action of a ratchet mechanism, control of the rotation angle of the large disc depends on matching of a positioning pin shaft and a positioning hole, and different work postures of a main shaft are determined through different rotation angles. In order to reduce resistance force in the turning process of the large disc, an unloading structure composed of a plurality of idler wheels, a disc-type spring set and an adjusting pad is designed; in order to controlling the work state of two pawls in the ratchet structure relative to ratchets, an operation structure is designed to control the pawls. The mechanical device can simulate the work postures of the main shaft unit, so that performance test comparison of the main shaft under different postures is facilitated; the mechanical device can also work as an auxiliary tool in the assembling process of the main shaft unit.
Description
Technical field
The invention is created a kind of mechanical device that can simulate milling spindle cell operation attitude is provided, and both can be used as the experiment basis of main shaft performance test, also can be used as the tooling auxiliary tool in main axle unit assembling process.
Background technology
Milling spindle unit is applied to the angle head on horizontal Machining centers, vertical machining centre and Multishaft processing center conventionally; Corresponding, the operating attitude of milling spindle unit can be divided into horizontal, and---axis of rotation is parallel to ground, vertical---axis of rotation tilts perpendicular to ground, angle---, and axis of rotation becomes arbitrarily angled or becomes the variation of fixed intervals angle with ground.The cutting ability of milling spindle unit will determine the cutting ability of main frame to a great extent, and high performance main axle unit parts development is more and more caused to the attention of lathe manufacturer.
The performance of main axle unit is generally evaluated by the method for cutting test, but cutting test conventionally needs a Machine and sacrifices a test material, and this way can be introduced test result by the characteristic of Machine on the one hand, causes inaccurate; The main shaft of many specifications is difficult to complete test on a lathe on the other hand, causes unnecessary a large amount of human and material resources wastes.For this reason, the method for using cylinder, hydraulic cylinder simulation cutting power to load is more and more incorporated into the performance test of main shaft.By the control of gas, fluid pressure, be easy to the size of simulation cutting power, and the control with respect to main-shaft axis angle to cylinder, hydraulic cylinder, easily realize the direction of simulation cutting power.
When main shaft is during in different operating attitude, the weight of main shaft self rotary part will cause different impacts to main shaft support bearing stressed: when main shaft is during in vertical application, the weight of rotary part all act on main shaft support bearing axially; When main shaft is during in horizontal application, the weight of rotary part will all act on main shaft support bearing radially; When in other operating angle, the weight of rotary part will be with angle pro rata in axial, radial distribution.The difference that this shaft strength distributes will cause that main axis stiffness, heating etc. produce delicate variation, even can affect rotating accuracy.For the main shaft that adopts mist of oil, oil-air lubrication, for given oil supply angle, fuel feeding position, different operating attitudes also may produce different lubricant effects.Certainly, the operating attitude difference of main shaft has also proposed different requirements to the hermetically-sealed construction of front-end of spindle bearing: the fouls such as the front end cutting fluid of vertical spindle are not easy to enter, and the foul entering is also easy to discharge under Action of Gravity Field; The situation of horizontal main axis is contrary, and foul easily enters from front end seal clearance, and after entering, is not easy to get rid of.Compare test to these performance differences of main shaft, the simulation of operating attitude just seems and is even more important.
Summary of the invention
Taking and the waste of cutting test material, improving test efficiency, improve test effect when saving lathe worker in main shaft performance evaluation test, method by analog main shaft practical working situation such as cylinder, hydraulic cylinders constantly improves, and the invention is created provides a kind of mechanical device for milling spindle cell operation attitude-simulating.
The object that the invention is created is achieved through the following technical solutions: a kind of mechanical device for milling spindle cell operation attitude-simulating, it is characterized in that: comprise one can be in vertical plane rotating big disk, the centre of gyration of described big disk connects firmly a hollow shaft, hollow shaft forms rotary pair with the axle sleeve being fixed on base, its axis of rotation is parallel to ground, and perpendicular to be arranged on the axis of the main shaft on big disk by flange; On big disk, be provided with main shaft installing rack, main axle unit is arranged on main shaft installing rack by flange;
Plane contact between described big disk and base, outward flange at big disk connects a part with pin shaft hole, on the corresponding circumference of base, process the fixed pin holes that equal angles distributes, alignment pin is inserted in a certain fixed pin holes, realize disc rotation location; Some uniform bar holes are set on big disk, and screw hole is offered in the relevant position on base binding face, by soket head cap screw, big disk is pressed on the binding face of base;
Described hollow shaft rotary pair is provided with the unloading mechanism being comprised of a plurality of rollers, disk spring group, adjusting pad;
Described big disk is connected with moment of torsion input block by steel wire rope, and steel wire rope one end is cemented in the circumference of big disk, and the other end is cemented on the rope sheave in moment of torsion input block;
Described moment of torsion input block comprises ratchet mechanism and ratchet control structure, ratchet mechanism is comprised of a ratchet and two ratchets, ratchet is divided into location ratchet, power ratchet, by location ratchet restriction big disk, reverse, locate fitting tightly of ratchet and ratchet, power ratchet is coupled to operating grip, transmission of drive force is to ratchet, together with ratchet connects firmly with rope sheave, and the gyroaxis of shared rope sheave, the gyroaxis of rope sheave is arranged on base;
The control structure of location ratchet is: the steel pipe welding fitting that operating grip is hollow, and the shared gyroaxis of the gyroaxis of operating grip and rope sheave, ratchet is coaxial, and the pull bar of locating ratchet passes at steel pipe center; Pull bar during by manual pull-up, rises by an inclined-plane moving along guide rail the roller being mated, and roller and an arc-shaped surface part interlock, the straight pin that arc-shaped surface connects firmly jack-up and ratchet, makes to locate ratchet and ratchet disengaging, exits location; When pull bar unclamps, pull bar will reset under its action of reset spring, and location ratchet recovers location under its action of reset spring;
The control structure of power ratchet is: power ratchet keeps laminating at the auxiliary lower and ratchet of spring, power ratchet is connected with bar, operating parts coordinates with the end of bar and can be free to slide along the gathering sill in gripper shoe, gathering sill bottom in gripper shoe is provided with keeper, when operating parts rotates, when the straight pin position on it is stuck under keeper, power ratchet is separated with ratchet under the drive of bar.
In the control structure of described location ratchet, restricted by two guide fingers with the tool arc-shaped surface part moving direction of roller interlock, one of them guide finger afterbody is provided with baffle plate.
The operating grip of described ratchet mechanism and power ratchet are connected by a middle transition part, and transition piece one end is connected by expansion sleeve with handle, and the other end is connected by revolute pair with power ratchet.
Disk V-type cover is connected with big disk interference, and its endoporus is processed into " v block " form, and front end flange and hollow shaft connect firmly, and connects with big disk, disk V-type cover by a plurality of stud bolt an nuts.
Hollow shaft rear end at big disk is provided with spring pre-tightening structure, guarantees that the locating surface of big disk and base fits tightly; Described spring pre-tightening structure is: on flange at tail end circumference, be uniformly distributed 3 spring spools, helical spring is installed in spring spool, central spindle of the spring is through helical spring, and connect with flange at tail end by screw thread, helical spring one end acts on steel ball and retainer, steel ball contacts with the wear-resistant pad point on the lower carriage of rear end, and rear end lower carriage is fixed on base; The helical spring other end transmits by central spindle of the spring, flange at tail end, hollow shaft, front end flange successively, to big disk, applies pulling force backward.
Described unloading mechanism is comprised of two parts, and uniform three fulcrums on the close hollow shaft circumference of big disk one side, as front support; In hollow shaft back end circumference, arrange two fulcrums, support force becomes 120 ° of angles, as rear support; Three fulcrums of front support are relatively independent, and wherein two of lower end fulcrum structures are identical, roller, off-load support, off-load mandrel, lower unloader lever, disk spring, locking nut, plastic sliding bearing, limit rotation structure part, consist of; The upper end fulcrum of front support is fixed pivot, compares with lower sustainer, does not comprise disk spring; Two rollers of rear support are fixed on same support, and support force is provided by same group of disk spring.
The limit rotation structure part of unloading mechanism front support comprises that stop flange, limit are shipped and resell on another market, plastic sliding bearing, positioning key, stop flange is fixed on off-load support, on it, have pin shaft hole, one end tight fit of shipping and reselling on another market with limit, the other end that limit is shipped and resell on another market inserts in plastic sliding bearing, and can be free to slide in sliding bearing, bearing holder (housing, cover) is fixed on end flange dish by adjusting pad, by the rotation between positioning key confinement end ring flange and lower unloader lever.
The beneficial effect of the invention: for the method by simulation obtains the test accurately of main shaft performance, the invention Creative Design this milling spindle cell operation attitude-simulating mechanical device, by this device, main axle unit is fixed, made the possibility that becomes that applies of cutting force; Operating attitude that can analog main shaft, make test result just more closing to reality, there is convincingness.In the process of main axle unit assembling, this milling spindle cell operation attitude-simulating mechanical device can multi-angle change, and imitates main shaft in different operating attitude.This mechanical device, except operating attitude that can analog main shaft unit, is convenient to the main shaft performance test contrast under different attitudes; Also can be used as the auxiliary mould in main axle unit assembling process.
Accompanying drawing explanation
Fig. 1 is the front view that the invention is created.
Fig. 2 is the partial sectional view along big disk axis of rotation.
Fig. 3 is that main apparent direction embodies the partial sectional view that unloading mechanism front end supports.
Fig. 4 is the fragmentary detail view at C place in Fig. 3.
Fig. 5 is the local rotation of cutaway view B-B indicating in Fig. 3.
Fig. 6 is that main apparent direction embodies the cutaway view that unloading mechanism rear end is supported.
Fig. 7 is moment of torsion input block stereogram.
Fig. 8 is operating grip stereogram.
Fig. 9 cuts open along operating grip pipe fitting center to show location ratchet control structure Local map.
Figure 10 is the fragmentary detail view at A place in Fig. 9.
Figure 11 is the fragmentary detail view at B place in Fig. 9.
Figure 12 is operating grip end sectional arrangement drawing.
Figure 13 is power ratchet control structure stereogram.
The specific embodiment
Below in conjunction with accompanying drawing, illustrate the embodiment of the invention.
Test main axle unit 3 is arranged on main shaft installing rack 8 by flange, for improving, rigidity is installed, and for the larger main axle unit of specification, adjusts three screw rods on the auxiliary support frame 10 that is positioned at main axle unit top, makes it hold out against main axle unit.The electricity of test main shaft, gas, wet goods pipeline can be introduced experimental rig from hollow shaft 11 center, be first fixed on pipeline fixing frame 4, and then access test main axle unit 3.Because above-mentioned test main axle unit 3, main shaft installing rack 8, auxiliary support frame 10, pipeline fixing frame 4 are all fixed on above big disk 5, the center of big disk 5 connects firmly a hollow shaft 11, forms rotary pair with the axle sleeve being fixed on base 1.Hollow shaft 11 is as the centre of gyration of big disk 5, like this in big disk switching process, be beneficial to avoid pipeline winding, the fault such as fracture.For the convenience of installing, initial installation site attitude makes the axis of main shaft perpendicular to ground, in vertical installation.The gyroaxis of big disk 5 is fixed on above device pedestal 1, parallel to the ground, vertical with main-shaft axis, and the rotation of big disk 5 will drive the work conversion of attitude of main axle unit 3.When big disk 5 turns over 90 °, the axis of main shaft is just parallel to the ground, and now main shaft is in horizontal attitude.In order to make the main shaft can be in other operating attitude, outward flange at big disk 5 connects a part 2 with pin shaft hole, on the corresponding circumference of base 1, process the fixed pin holes that equal angles distributes, when the fixed pin holes of steady pin inserted base 1 diverse location, just determined the angle that disk turns over---be the angle of inclination of main shaft.Bearing pin just by disk or main shaft orientation in certain angle, in order to make main shaft disk in the process of bearing simulation cutting load keep motionless, must disk be pressed on the binding face of base by soket head cap screw 9.Consider that screw adapts to disk position and changes the needs of adjusting, on disk, relevant position has the bar hole identical with screw number 25, and a plurality of screw holes are offered in relevant position on base binding face, the quantity of screw hole depends on the differential seat angle between aforementioned alignment pin hole site, and the length of bar hole 25, must consider comprehensively.Final effect is no matter alignment pin is positioned disk for which angle, and screw can be through the bar hole 25 and corresponding screw hole of precession is realized the clamping of disk.
From accompanying drawing 1, the installation site of main axle unit can be found out, the integral body of main axle unit is partial to below the centre of gyration of big disk 5, the below that position of centre of gravity also should be in the centre of gyration; From the position distribution of dowel hole, can find out, when test main axle unit will be in the tilted angle or become horizontal operating attitude, big disk and upper fixing element thereof will be done counterclockwise revolution under driving torque effect, and the flywheel moment that the skew of the position of center of gravity forms is the main resistance square that moment of torsion input block 7 need to overcome.
Due to the friction between friction, hollow shaft 11 and hollow shaft sleeve 19 between big disk 5 and 1 faying face of device pedestal, it is also the resistance that will overcome.In turning course, between big disk 5 and device pedestal 1, to keep fitting tightly and just not understand front and back play, work just can safety, reliable.Spring pre-tightening structure is set up in hollow shaft 11 rear ends at big disk 5, to guarantee that big disk 5 and the locating surface of base 1 fit tightly.Spring pre-tightening structure is as follows: on flange at tail end 16 circumference, be uniformly distributed 3 spring spools 14, at the interior installation helical spring 13 of spring spool 14, central spindle of the spring 12 is through helical spring 13, and connect with flange at tail end 16 by screw thread, helical spring 13 one end act on steel ball and retainer 15, are finally hampered by wear-resistant pad 17, and rear end lower carriage 18 is fixed on the base 1 of this device; The overall pressurized of helical spring 13, its other end, by the transmission of central spindle of the spring 12, flange at tail end 16, hollow shaft 11, front end flange 23, makes big disk 5 be subject to all the time pulling force backward, and the size of pulling force regulates by adjusting central spindle of the spring 12 screw-in lengths.
Big disk 5 is mainly considered from the applicability of assembly technology with the connected mode of hollow shaft 11.Disk V-type cover 20 is connected with big disk 5 interference, and its endoporus is processed into " v block " form, under the booster action of fastening screw 21, forms " supported at three point ", and the weight of big disk 5 will act in hollow shaft 11 by the strong point.For preventing toppling of big disk, front end flange 23 and hollow shaft 11 are connected firmly, and connect with big disk 5, disk V-type cover 20 by a plurality of studs 22 and nut.Front end flange 23 and disk V-type are overlapped between 20 corresponding mounting planes and are had unavoidably parallelism error, for eliminating the impact of this error on assembling, should measure one by one adjusting pad 24 and answer grinding thickness, after stud bolt an nut 22 is tightened, beat straight pin.
For the service life that reduces the frictional resistance between hollow shaft 11 and hollow shaft sleeve 19 and improve device, having adopted a set of unloading mechanism to become sliding friction is rolling friction, and its front support part as shown in Figure 3, express in Fig. 6, Fig. 2 by rear support part.
Front support has three strong points, and each strong point can be used as an independently supporting module, and supporting module is arranged in the groove processing on device pedestal 1.The structure of two supporting modules in bottom is identical, off-load support 32, lower unloader lever 39, disk spring 40, packing ring 41, locking nut 34, stop nut 35, roller 37, plastic sliding bearing 38 etc., consists of.The active force of disk spring 40 acts on hollow shaft 11 by lower unloader lever 39, roller 37, and the large I of active force regulates by nut; What sliding bearing 38 can guarantee bar axially moves freely and eliminates the gap between mating parts.The main difference part of upper support module is to have saved disk spring, and causes thus the active position of two nuts to change; Lower unloader lever 39 and the difference of upper unloader lever 33 are only that the Working position of screw thread is different.Positional precision is controlled for the ease of the installation of several modules and while repeating to install, and adjusts screw 36 and can play the effect of location.
The axle center keeping parallelism of the axle center of roller 37 and hollow shaft 11 could be brought into play the effect of off-load to the full extent, and the limit rotation structure part that for this reason needs a set of restriction support bar to rotate, as the expression of Fig. 4 and Fig. 5.Stop flange 42 is fixed on off-load support 32, has pin shaft hole on it, and with ship and resell on another market one end tight fit of 43 of limit, ship and resell on another market 43 the other end of limit inserts in plastic sliding bearing 44.Bearing holder (housing, cover) 45 is fixed in end flange 49 by the Height Adjustment of adjusting pad 48, and rotation between positioning key 47 confinement end flanges 49 and lower unloader lever 39.Due to limit, ship and resell on another market and 43 can in bearing 44, be free to slide, so such nested structure will limit roller 37 and support member occurrence positions rotates, roller 37 will remain unchanged after setting up with the relative position of hollow shaft 11.
The rear support of unloading mechanism partly comprises two strong points, is included among a whole module, as the expression in Fig. 6, Fig. 2.On the off-load support 31 of hollow shaft 11 rear ends, arrange that two roller 37(are identical with front support), two rollers 37 are fixed on rear end and form two application points, and force direction becomes 120 ° of angles.The active force of disk spring 29 passes to rear end off-load support 31 by rear end off-load mandrel 28, and rear end upper bracket 26 is fixed on device pedestal 1, and the large I of disk spring 29 power is adjusted by the thickness of adjusting pad 27.The size of spring force be take front end big disk 5 and the weight of the parts such as main shaft that are fixed thereon is reference frame.
The rotary power of big disk 5 transmits by steel wire rope 6, and big disk 5 is connected with moment of torsion input block 7 by steel wire rope 6, and steel wire rope 6 one end are cemented in the circumference of big disk 5, and the other end is cemented on rope sheave 98; Wheel well width is more bigger than wirerope diameter, guarantees that steel wire rope multi-turn on rope sheave is wound around and axial location is relatively constant.The gyroaxis of rope sheave 98 is fixed on device pedestal 1, and when steel wire rope 6 is when being wound around on rope sheave 98, test main axle unit 3 is rotated counterclockwise under the drive of big disk 5, starts to rise; Otherwise when steel wire rope 6 is when being wound around on big disk 5, big disk 5 turns clockwise, main axle unit 3 starts to fall.
Moment of torsion input block 7 comprises ratchet mechanism and control structure thereof, and ratchet mechanism is comprised of a ratchet and two ratchets, and together with ratchet 97 connects firmly with rope sheave 98, the two shares same gyroaxis.Ratchet is divided into location ratchet 57, power ratchet 56.Location ratchet 57 is fixed on base 1 by rotating shaft, and action is controlled by a set of control structure.The effect of location ratchet 57 is that restriction big disk 5, rope sheave 98 reverse, and guarantees that main axle unit 3 can be parked in the height of some rises, and convenient operation person's operation is again until rise to higher position by main axle unit 3.
For guaranteeing fitting tightly of location ratchet 57 and ratchet 97, depression bar 59 coordinates with cover 61, under the effect of spring 60, location ratchet 57 is pressed down all the time.The adjustment of pressure can rotate to control by the appropriateness of rod member 62, and bulb shape is worn in the end of depression bar 59, is beneficial to and reduces friction.The effect of power ratchet 56 is that the power that operator is acted on operating grip 63 passes to rope sheave 98 by ratchet 97.Power ratchet 56 connects by rotary pair with middle transition part 55, and middle transition part 55 connects by expansion sleeve with the installation shaft on operating grip 63.The gyroaxis of operating grip 63 should be adjusted to the gyroaxis of rope sheave 98, ratchet 97 coaxial, could reduce the wearing and tearing in click engagement process.For this reason, the installation site of support 51, bearing block 52 will be adjusted according to the installation situation of rope sheave 98, ratchet 97.
Location ratchet 57 needs interoperation with power ratchet 56, alternately has an effect.When location ratchet 57 exits location, operating grip passes through power ratchet transmitting torque to ratchet, disc rotated; During the rotation of location ratchet restriction ratchet, operating grip could be controlled power ratchet, the relative position of motivation of adjustment ratchet and ratchet, for next step rotation ready.
In the course of the work, operator will control engagement, the disengagement relation of power ratchet 56, location ratchet 57 and ratchet 97 as required; For this reason, two of this ratchet mechanism ratchets have respectively a set of control structure to control.
The control structure of location ratchet 57 consists of parts such as pull bar 64, inclined-plane, roller 69, arc-shaped surface jack-up parts 73.The disengagement of location ratchet 57 realizes by the straight pin on arc surface jack-up part 73 jack-up ratchets.On arc-shaped surface jack-up part 73, connect firmly a long guide finger 71, short guide finger 75, the two is parallel to each other and coordinates with long guide pin bushing 70, short-range missile cover 74, plays guiding.Long guide pin bushing 70, short-range missile cover 74 are fixed on installing plate 53, and installing plate 53 is pressed on the corresponding installation site on operating grip 63 by screw 54.Consider the compactedness of structure, pull bar 64 is arranged among the steel pipe of operating grip 63 by support annulus 76.Pull bar 64 consists of at two ends two sections of cylinders of welding a steel pipe, after cylindrical section processing, coordinates with support annulus 76.When A, the B region that operator's palm is held operating grip 63, see Figure 12, by finger part pull joystick 85, skin, shake hands 90 o'clock, connecting rod 86 will drive pull bar 64, by the transmission of screw 65, middleware 66, rebound 67, skewed slot on skewed slot piece 68 is jack-up roller 69, and then drives roll fixed shaft 72,73 actions of circular arc jack-up part, finally locates ratchet 57 by jack-up.Location ratchet 57 is by after jack-up, and ratchet 97 just can rotate under the cooperation of power ratchet 56, and the angle of rotation is subject to the restriction of arc-shaped surface jack-up part 73 arc length.For preventing that roller 69 from coming off from the groove of skewed slot piece 68, cover 80 is fixed on the tail end of long guide pin bushing 70, and baffle plate 83 is fixed on cover 80, and by controlling screw-in depth and adjusting pad 82 thickness of soket head cap screw 84, the tolerance limit stroke of roller 69 can limit.When operator decontrols action bars 85, a whole set of control member resets under the effect of spring 91, and location ratchet 57 also resets under spring 60 effects.
As shown in figure 13, operating parts coordinates with the end of bar and can edge the control structure of power ratchet 56
Power ratchet 56 is in the auxiliary lower maintenance of spring 96 and the laminating of ratchet 97.Power ratchet 56 is connected with bar 92, operating parts 94 coordinates with the end of bar 92 and can be free to slide along the gathering sill in gripper shoe 93, gathering sill bottom in gripper shoe 93 is provided with keeper 95, when 94 rotations of operator grasps operating parts, when the straight pin position on it is stuck under keeper 95, power ratchet 56 is separated with ratchet 97 under the drive of bar 92; Now, operator's capable of regulating power ratchet 56 is with respect to the circumferential position of ratchet 97, for follow-up work ready.
More than describe the concrete structure formation of the invention creation and the function of key components and parts in detail, next, specifically describe operator according to the operating procedure of different operating situation.
Working condition one: big disk 5 is rotated counterclockwise
When big disk 5 counterclockwise rotates, operator's movement displaying, for by operating grip 63 " lifting " from bottom to top, is wound around steel wire rope 6 on rope sheave 98.When operating grip 63 is lifted to a certain degree, because of the restriction of operator's height, operating grip 63 must oppositely be reduced to a suitable height just can carry out " lifting " action again.In the process of operating grip 63,56 reversions of power ratchet, location ratchet 57 is fixed the position of ratchet 97.So repeated multiple times, until big disk 5 goes to the position of expection.By bearing pin keeper, by big disk 5 location, soket head cap screw 9 is all locked, just can carry out follow-up experiment work.
Working condition two: big disk 5 turns clockwise
Operator's both hands palm acts on A, the B region of operating grip, with finger part, pulls skin handle 90, action bars 85, and location ratchet 57 will be by arc-shaped surface jack-up part 73 jack-up.Now, big disk 5 can rotate, and operator wants the gravity torque of balance big disk 5,3 generations of test main axle unit.When big disk 5 turns clockwise, operator's movement displaying is for " slowly to put down operating grip 63 " from top to bottom, and now, steel wire rope 6 is wound around on big disk 5.When operating grip 63 is rotated down certain position, no longer suitable operator is operated, now need skin handle 90, action bars 85 to unclamp, make to locate ratchet 57 reset work.After location ratchet 57 resets, the gravity torque of big disk 5, test main axle unit 3 changes by location ratchet 57 to be born.Operator is pull operation part 94 now, and is stuck under keeper 95, and power ratchet 56 will be separated with ratchet 97, and after separating is lifted to appropriate position by operating grip 63, then power ratchet 56 is resetted.
After power ratchet 56 resets, jack-up is located ratchet 57 again, and operating grip 63 " is slowly put down ".Operator so repeatedly, until big disk 5 is adjusted to the testing position of expection.
Claims (7)
1. the mechanical device for milling spindle cell operation attitude-simulating, it is characterized in that: comprise one can be in vertical plane rotating big disk, the centre of gyration of described big disk connects firmly a hollow shaft, hollow shaft forms rotary pair with the axle sleeve being fixed on base, its axis of rotation is parallel to ground, and perpendicular to be arranged on the axis of the main shaft on big disk by flange; On big disk, be provided with main shaft installing rack, main axle unit is arranged on main shaft installing rack by flange;
Plane contact between described big disk and base, outward flange at big disk connects a part with pin shaft hole, on the corresponding circumference of base, process the fixed pin holes that equal angles distributes, alignment pin is inserted in a certain fixed pin holes, realize disc rotation location; Some uniform bar holes are set on big disk, and screw hole is offered in the relevant position on base binding face, by soket head cap screw, big disk is pressed on the binding face of base;
Described hollow shaft rotary pair is provided with the unloading mechanism being comprised of a plurality of rollers, disk spring group, adjusting pad;
Described big disk is connected with moment of torsion input block by steel wire rope, and steel wire rope one end is cemented in the circumference of big disk, and the other end is cemented on the rope sheave in moment of torsion input block;
Described moment of torsion input block comprises ratchet mechanism and ratchet control structure, ratchet mechanism is comprised of a ratchet and two ratchets, ratchet is divided into location ratchet, power ratchet, by location ratchet restriction big disk, reverse, locate fitting tightly of ratchet and ratchet, power ratchet is coupled to operating grip, transmission of drive force is to ratchet, together with ratchet connects firmly with rope sheave, and the gyroaxis of shared rope sheave, the gyroaxis of rope sheave is arranged on base;
The control structure of location ratchet is: the steel pipe welding fitting that operating grip is hollow, and the shared gyroaxis of the gyroaxis of operating grip and rope sheave, ratchet is coaxial, and the pull bar of locating ratchet passes at steel pipe center; Pull bar during by manual pull-up, rises by an inclined-plane moving along guide rail the roller being mated, and roller and an arc-shaped surface part interlock, the straight pin that arc-shaped surface connects firmly jack-up and ratchet, makes to locate ratchet and ratchet disengaging, exits location; When pull bar unclamps, pull bar will reset under its action of reset spring, and location ratchet recovers location under its action of reset spring;
The control structure of power ratchet is: power ratchet keeps laminating at the auxiliary lower and ratchet of spring, power ratchet is connected with bar, operating parts coordinates with the end of bar and can be free to slide along the gathering sill in gripper shoe, gathering sill bottom in gripper shoe is provided with keeper, when operating parts rotates, when the straight pin position on it is stuck under keeper, power ratchet is separated with ratchet under the drive of bar.
2. a kind of mechanical device for milling spindle cell operation attitude-simulating as claimed in claim 1, it is characterized in that: in the control structure of described location ratchet, restricted by two guide fingers with the tool arc-shaped surface part moving direction of roller interlock, one of them guide finger afterbody is provided with baffle plate.
3. a kind of mechanical device for milling spindle cell operation attitude-simulating as claimed in claim 1, it is characterized in that: the operating grip of described ratchet mechanism and power ratchet are connected by a middle transition part, transition piece one end is connected by expansion sleeve with handle, and the other end is connected by revolute pair with power ratchet.
4. a kind of mechanical device for milling spindle cell operation attitude-simulating as claimed in claim 1, it is characterized in that: disk V-type cover is connected with big disk interference, its endoporus is processed into " v block " form, front end flange and hollow shaft connect firmly, and connect with big disk, disk V-type cover by a plurality of stud bolt an nuts.
5. a kind of mechanical device for milling spindle cell operation attitude-simulating as claimed in claim 1, is characterized in that: the hollow shaft rear end at big disk is provided with spring pre-tightening structure, guarantees that the locating surface of big disk and base fits tightly; Described spring pre-tightening structure is: on flange at tail end circumference, be uniformly distributed 3 spring spools, helical spring is installed in spring spool, central spindle of the spring is through helical spring, and connect with flange at tail end by screw thread, helical spring one end acts on steel ball and retainer, steel ball contacts with the wear-resistant pad point on the lower carriage of rear end, and rear end lower carriage is fixed on base; The helical spring other end transmits by central spindle of the spring, flange at tail end, hollow shaft, front end flange successively, to big disk, applies pulling force backward.
6. a kind of mechanical device for milling spindle cell operation attitude-simulating as described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: described unloading mechanism is comprised of two parts, uniform three fulcrums on the close hollow shaft circumference of big disk one side, as front support; In hollow shaft back end circumference, arrange two fulcrums, support force becomes 120 ° of angles, as rear support; Three fulcrums of front support are relatively independent, and wherein two of lower end fulcrum structures are identical, roller, off-load support, off-load mandrel, lower unloader lever, disk spring, locking nut, plastic sliding bearing, limit rotation structure part, consist of; The upper end fulcrum of front support is fixed pivot, compares with lower sustainer, does not comprise disk spring; Two rollers of rear support are fixed on same support, and support force is provided by same group of disk spring.
7. a kind of mechanical device for milling spindle cell operation attitude-simulating as claimed in claim 6, it is characterized in that: the limit rotation structure part of unloading mechanism front support comprises stop flange, limit is shipped and resell on another market, plastic sliding bearing, positioning key, stop flange is fixed on off-load support, on it, have pin shaft hole, one end tight fit of shipping and reselling on another market with limit, the other end that limit is shipped and resell on another market inserts in plastic sliding bearing, and can in sliding bearing, be free to slide, bearing holder (housing, cover) is fixed on end flange dish by adjusting pad, by the rotation between positioning key confinement end ring flange and lower unloader lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874701.9U CN203863338U (en) | 2013-12-28 | 2013-12-28 | Mechanical device used for work posture simulation of milling main shaft unit |
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| CN201320874701.9U CN203863338U (en) | 2013-12-28 | 2013-12-28 | Mechanical device used for work posture simulation of milling main shaft unit |
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| CN203863338U true CN203863338U (en) | 2014-10-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722373A (en) * | 2013-12-28 | 2014-04-16 | 沈阳机床(集团)有限责任公司 | Mechanical device for operation posture simulation of milling spindle unit |
| CN106202810A (en) * | 2016-07-25 | 2016-12-07 | 北京道亨时代科技有限公司 | A kind of method of adjustment of double hanging point V string model of parts spatial attitude |
| CN106425630A (en) * | 2016-12-09 | 2017-02-22 | 潘茜茜 | Guide device matched with cutting tool |
| CN107598550A (en) * | 2017-10-23 | 2018-01-19 | 科快智能科技（上海）有限公司 | A kind of screw-driving apparatus |
| CN108311880A (en) * | 2018-04-12 | 2018-07-24 | 南京中电熊猫照明有限公司 | A kind of tightening machine and tightening method |
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2013
- 2013-12-28 CN CN201320874701.9U patent/CN203863338U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722373A (en) * | 2013-12-28 | 2014-04-16 | 沈阳机床(集团)有限责任公司 | Mechanical device for operation posture simulation of milling spindle unit |
| CN103722373B (en) * | 2013-12-28 | 2015-11-18 | 沈阳机床(集团)有限责任公司 | A kind of mechanical device for milling spindle cell operation attitude-simulating |
| CN106202810A (en) * | 2016-07-25 | 2016-12-07 | 北京道亨时代科技有限公司 | A kind of method of adjustment of double hanging point V string model of parts spatial attitude |
| CN106202810B (en) * | 2016-07-25 | 2019-05-17 | 北京道亨时代科技有限公司 | A kind of method of adjustment of double hanging point V string model of parts spatial attitude |
| CN106425630A (en) * | 2016-12-09 | 2017-02-22 | 潘茜茜 | Guide device matched with cutting tool |
| CN106425630B (en) * | 2016-12-09 | 2018-06-15 | 黄乙金 | For coordinating the guide device of cutter |
| CN107598550A (en) * | 2017-10-23 | 2018-01-19 | 科快智能科技（上海）有限公司 | A kind of screw-driving apparatus |
| CN107598550B (en) * | 2017-10-23 | 2024-02-09 | 朗快智能科技（杭州）有限公司 | Screw tightening device |
| CN108311880A (en) * | 2018-04-12 | 2018-07-24 | 南京中电熊猫照明有限公司 | A kind of tightening machine and tightening method |
| CN108311880B (en) * | 2018-04-12 | 2024-06-07 | 南京中电熊猫照明有限公司 | Tightening method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20151118 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |