CN201217170Y

CN201217170Y - Flat grinder

Info

Publication number: CN201217170Y
Application number: CNU2008200499607U
Authority: CN
Inventors: 蓝梁章
Original assignee: ZHUHAI HYFAIR INTERNATIONAL Inc
Current assignee: ZHUHAI HYFAIR INTERNATIONAL Inc
Priority date: 2008-06-25
Filing date: 2008-06-25
Publication date: 2009-04-08
Anticipated expiration: 2018-06-25

Abstract

The utility model provides a plane grinding machine which includes an underframe, a support, a saddle seat, a grinding wheel frame, a work table and a first, a second and a third feeding mechanisms. The first feeding mechanism includes a first worm gear and a first transmission screw rod which are fixedly connected together in coaxial way; the plane grinding machine also includes a first worm pole with screw thread, the rotational shaft of which is vertical to the middle shaft of the first worm gear, and a first clutch mechanism which drives the first worm pole screw thread to mesh with the wheel teeth of the first worm gear at a first position and separate from the wheel teeth of the first worm gear at a second position. The plane grinding machine is applied to grinding and processing for workspieces and can effectively improve the positioning precision of the workpieces.

Description

A kind of surface grinding machine

Technical field

The utility model relates to a kind of surface grinding machine, especially for carrying out the surface grinding machine that the processing of surface of the work flatness, surface finish, groove processing or special forming grind.

Background technology

The various planes that surface quality is had relatively high expectations all need through surperficial deep processing or fine finishining, and the processing method that adopts is a flat surface grinding usually.Flat surface grinding lathe commonly used is a surface grinding machine.Surface grinding machine adds man-hour carrying out the surface of the work flatness, utilizes the pending surface of the working surface buffing work-piece of grinding wheel.The working surface of grinding wheel can be its periphery, also can be its axial end.

When the pending surface of the periphery grinding work piece that adopts grinding wheel, the main shaft of grinding machine just drives the main shaft of emery wheel rotation, generally takes to be parallel to the horizontal layout type of horizontal plane.When the pending surface of the axial end grinding work piece that adopts grinding wheel, the main shaft of grinding machine take usually to be parallel to vertical to vertical layout type.In grinding pending when surface,, workpiece is fixed on the rectangular table that does reciprocating linear motion usually, also can be installed on the circular table of making circular motion.Adopt the grinding machine of trunnion axis and rectangular table to be called for short surface grinding machine with horizontal spindle and rectangular table.

Surface grinding machine with horizontal spindle and rectangular table, its main shaft is normally directly driven by the interconnected asynchronous motor.Therefore, motor shaft also just becomes the main shaft of grinding machine.The stator of motor is directly installed in the housing of grinding carriage.Its groundwork process is: vertically to moving as bottom and top feed, realization emery wheel cylinder or wheel perimeter surface contact with to be processed of workpiece transmission mechanism drive grinding carriage, finish grinding along vertical; In horizontal plane,, realize the location of workpiece by the transmission mechanism that carries out motion control at vertical each other both direction.

The power transmission shaft that control workpiece vertical is normally regulated and control by handwheel to each transmission mechanism of position and horizontal plane position.When adopting this handwheel control methods to realize the surface grinding machine location, need to apply bigger manual active force first, the operation easier height, second, the space orientation of workpiece is difficult to satisfy high-precision requirement.In addition, in the process on grinding work-piece surface, because the dirt that grinding is got off on emery wheel and workpiece bits permeate on the workbench of supporting workpiece easily and on the saddle of support table, cause dirt bits accumulation between workbench and the saddle, platform steadily the sliding on saddle that hinder one's work reduced the machining accuracy of workpiece.

The utility model content

The utility model purpose is to provide a kind of surface grinding machine.This surface grinding machine can improve the spatial positioning accuracy of workpiece in the Surface Machining process of lapping.

Surface grinding machine according to the above-mentioned purpose design comprises underframe, pillar, saddle, grinding carriage, workbench.Pillar erectly is fixed on the underframe with the attitude that is parallel to third direction.Grinding carriage is supported on the pillar slidably along the cooperation of third direction by the 3rd slide rail and the 3rd chute.Saddle is along being supported on the underframe slidably perpendicular to the cooperation by first slide rail and first chute of the first direction of third direction.Workbench is along being supported on the saddle slidably perpendicular to the cooperation by second slide rail and second chute of the second direction of third direction and first direction simultaneously.This surface grinding machine also comprise be used to control saddle along first feed mechanism of the sliding mode of first direction, be used to control workbench along second feed mechanism of the sliding mode of second direction be used to control three feed mechanism of grinding carriage along the sliding mode of third direction.First feed mechanism comprises first worm gear and first drive lead screw that fixedly is assembled together with coaxial manner.The 3rd feed mechanism comprises the 3rd worm gear and the 3rd drive lead screw that fixedly is assembled together with coaxial manner.This surface grinding machine comprises that also its turning cylinder is perpendicular to screwed first worm screw of axle among first worm gear with order about first worm thread and be engaged in the gear teeth of first worm gear and break away from first clutch of the gear teeth of first worm gear in the second place in primary importance.

Preferably, aforementioned surface grinding machine comprises that also its turning cylinder is perpendicular to screwed the 3rd worm screw of axle among the 3rd worm gear with order about the 3rd worm thread to be engaged in one of position in the gear teeth of the 3rd worm gear and break away from the 3rd clutch of the gear teeth of the 3rd worm gear in two of position.

Preferably, aforementioned surface grinding machine, the gearratio between its first worm screw and first worm gear is: the rotational angle of first worm screw: the rotational angle of first worm gear＞1.Gearratio between the 3rd worm screw and the 3rd worm gear is: the rotational angle of the 3rd worm screw: the rotational angle of the 3rd worm gear＞1.

More preferably, aforementioned surface grinding machine, its first clutch comprises first eccentric wheel and first kinematic link.One end of first kinematic link flexibly connects first worm screw, and its other end flexibly connects first eccentric the wheel week.Being provided with first at the position that first eccentric wheel departs from its center of circle takes off post.The 3rd clutch comprises the 3rd eccentric wheel and the 3rd kinematic link.One end of the 3rd kinematic link flexibly connects the 3rd worm screw, and its other end flexibly connects the 3rd eccentric the wheel week.Being provided with the 3rd at the position that the 3rd eccentric wheel departs from its center of circle takes off post.

At surface grinding machine in the process on grinding work-piece surface, exist the handwheel control methods to be difficult for realizing the hi-Fix problem of surface grinding machine, the increase of the utility model surface grinding machine is provided with the worm screw with the worm gear coupling, and order about worm screw in the position one engagement worm gear, and in the position two clutches that break away from worm gears.So, by gearratio suitable between the worm and wheel is set, wide-angle that promptly can worm screw is rotated the low-angle that obtains worm gear and is rotated, the final acquisition transforms the linear range variation of grinding single direction that obtains by this low-angle, thereby improves the spatial positioning accuracy of workpiece in the Surface Machining process of lapping.

The drawing explanation

Fig. 1 the utility model surface grinding machine perspective view.

The Working table structure decomposition diagram of Fig. 2 the utility model surface grinding machine.

The saddle partial sectional view of Fig. 3 the utility model surface grinding machine.

The feed mechanism STRUCTURE DECOMPOSITION perspective view of Fig. 4 a the utility model surface grinding machine.

The feed mechanism structure cutaway view of Fig. 4 b the utility model surface grinding machine.

The feed mechanism perspective view one of Fig. 5 the utility model surface grinding machine.

The feed mechanism perspective view two of Fig. 6 the utility model surface grinding machine.

The feed mechanism perspective view three of Fig. 7 the utility model surface grinding machine.

The specific embodiment

Describe the preferred specific embodiment of the utility model surface grinding machine in detail below in conjunction with accompanying drawing.In institute's drawings attached, identical Reference numeral is used to refer to identical parts, feature or structure.Embodiment introduce in the process at concrete structure or parts, only understand the reference illustration of the utility model surface grinding machine as those skilled in the art, those skilled in the art can also design do not exceed the utility model surface grinding machine technical scope and essence various and be equal to or the similar techniques structure under the enlightenment of this technical scheme.Thus, be unfavorable if limit the protection domain that the utility model surface grinding machine claim included with this preferred exemplary illustration.The technical scheme that is equal to or is similar to the utility model surface grinding machine still belongs to the protection domain of the utility model surface grinding machine claim.In addition, for simple and clear needs, the applicant has here omitted or has simplified description to known function and structure.

Referring to Fig. 1, show the placement attitude of the utility model surface grinding machine A under in working order.Under attitude shown in Figure 1, with the reference system of rectangular coordinate system as surface grinding machine A, wherein the z direction of surface grinding machine A be parallel to vertical to, its x, y direction are represented both direction vertical each other in the horizontal plane respectively.The x of surface grinding machine A, y, three directions of z are orthogonal.

Surface grinding machine A mainly comprises workbench 4, first feed mechanism 1, second feed mechanism 2, the 3rd feed mechanism 3.Workbench 4 is supported in the top of saddle 5.Saddle 5 and pillar 6 are supported in the top of underframe 7 simultaneously.Along the x direction, workbench 4 and pillar 6 are arranged with respect to saddle 5 order, that is for saddle 5, workbench 4 is positioned on the saddle 5 along the x direction, pillar 6 be fixed on the underframe 7 and its along the position of x direction between the rear portion of saddle 5.Like this, when carrying out the surface grinding operation, the operator can observe directly workbench 4 and be unlikely to be blocked sight line by pillar 6.On pillar 6,, be provided with the grinding carriage 8 that is used to install the emery wheel (not shown) in the top of workbench 4 along the z direction.First feed mechanism 1 is fixedly arranged on the saddle 5, and it is used for controlling saddle 5 and obtains the location with respect to pillar 6 or underframe 7 on the x direction.Second feed mechanism 2 also is fixedly arranged on the saddle 5, and it is used for controlling workbench 4 along the moving or locating with respect to saddle 5 of y direction.The 3rd feed mechanism 3 is fixedly arranged on the pillar 6, and it is used for controlling grinding carriage 8 and obtains the location with respect to saddle 5 on the z direction.The operator observes the needs of grinding state when considering surface grinding, first feed mechanism 1 is positioned at operator's right-hand side for saddle 5 along the y direction, second feed mechanism 2 is positioned at operator's left-hand side along the y direction for saddle 5, be convenient to realize grinding control like this.

Under the control of second feed mechanism 2, workbench 4 can reciprocatingly slide on saddle 5 along the y direction.Similarly, under the control of first feed mechanism 1, saddle 5 has the characteristic of moving back and forth with respect to pillar 6 on the x direction, so that saddle 5 is located in the appropriate location with respect to pillar 6 on the x direction; Under the control of the 3rd feed mechanism 3, grinding carriage 8 also has the characteristic of moving back and forth with respect to saddle 5 on the z direction, so that grinding carriage 8 is located in the appropriate location with respect to saddle 5 on the z direction.So, when the grinding work-piece surface, workpiece is fixed in the top of workbench 4 along the z direction, is installed in the control that emery wheels in the grinding carriage 8 are subjected to the 3rd feed mechanism 3 and descends along the z direction, forms the state that its face of cylinder or abradant surface and workpiece surface are in contact with one another; Simultaneously, because saddle 5 impels workbench 4 also obtaining the location in the x direction after the x direction is subjected to the control of first feed mechanism 1 and obtains the location; Under the state in workbench 4 is located in the xz plane, owing to be subjected to the control of second feed mechanism 2, workbench 4 will form in the y direction and reciprocatingly slide, impelling support workpiece thereon to form is synchronized with the movement, and then between aforementioned emery wheel and workpiece, form relative motion, finish the grinding of surface of the work.

Referring to Fig. 2,3, and, show the workbench 4 of the utility model surface grinding machine A and the structural regime of saddle 5 respectively in conjunction with Fig. 1.Fig. 2 shows the order of connection between each parts among the figure with dashed line form.

Workbench 4 is supported on the saddle 5, and combination between the two is that chute 501 is set on saddle 5, is arranged at workbench 4 and is engaged in the chute 501 along the respective slide (not shown) below the z direction.The line of travel that chute 501 limits points to the y direction of surface grinding machine A.Therefore, workbench 4 can only slide along the y direction of surface grinding machine A on saddle 5.

Workbench 4 is the flats that slightly are cuboid.On its working face, be fixed with and be used for the brace table 401 of supporting workpiece.

Saddle 5 is supported on the underframe 7.According to the processing needs of workpiece, can on the x direction, regulate the position of saddle 5, so that carry out the location of workpiece lapped face with respect to underframe 7.Therefore, combination between saddle 5 and the underframe 7 is similar to the marriage relation between workbench 4 and the saddle 5, also adopt the chute (not shown) that the x direction of pointing to surface grinding machine A is set on underframe 7, be engaged to mode in this chute by the slide block 502 that is arranged on the saddle 5, saddle 5 is supported on the underframe 7, and keeps saddle 5 on underframe 7, can only keep moving back and forth characteristic along the x direction.

Usually, in order on the x of surface grinding machine A, y both direction, to strengthen the milling area that is subjected to of workpiece, can consider at saddle 5 along the two ends of y direction and underframe 7 along adding auxiliary saddle on the two ends of x direction respectively, promptly add respectively be located at saddle 5 along the first and second auxiliary saddles 503,504 of y direction both sides and add respectively be located at underframe 7 along the both sides of x direction and the position between the third and fourth auxiliary saddle 505,506 of saddle 5 outsides.First and second auxiliary saddles 503,504, the third and fourth auxiliary saddles 505,506 all are to be used to extend the auxiliary component of the shift motion length of workpiece on respective direction, therefore, their position corresponds respectively to the chute 501 and the slide block 502 of saddle 5, that is the first and second auxiliary saddles 503,504 can be regarded the extension of chute 501 as; The third and fourth auxiliary saddle 505,506 can be regarded the extension of underframe 7 corresponding to slide block 502 as.First and second auxiliary saddle 503,504 securing members by bolt and so on are fixed in saddle 5 along on the two ends of y direction.The third and fourth auxiliary saddle 505,506 also is fixed in underframe 7 along the two ends of x direction corresponding to slide block 502 by the securing member of bolt and so on.

Be fixed with first dust cover 402 at workbench 4 respectively along the securing member by bolt and so on the two ends of y direction.Two first dust covers 402 are individually fixed in the first and second auxiliary saddles 503,504 along on the end of equidirectional away from workbench 4 along the y direction away from the end of workbench 4 securing member by bolt and so on.The chute district 508, five that two first dust covers, 402, the first and second auxiliary saddles 503,504 are positioned at workbench 4 bottoms together with saddle 5 forms jointly the respective slide (not shown) that is engaged on the chute 501 of saddle 5 and the workbench 4 in the chute 501 is coated on interior airtight dust prevention system.First dust cover 402 is flexibility or the flexible housings with wind-box shape, it is formed by stacking along the y direction by several monomer covers, therefore, first dust cover 402 is under the state that is fixed between the workbench 4 and the first auxiliary saddle 503 (the perhaps second auxiliary saddle 504), and it has retractility on the y direction.Like this, in the process that workbench 4 reciprocatingly slides along the y direction with respect to saddle 5, the respective slide that is engaged in the chute 501 on the chute 501 of saddle 5 and the workbench 4 will obtain and external environment, especially the isolated mutually working environment of dirt bits that the emery wheel on the aforementioned grinding carriage 8 produces in the grinding work-piece process, obtain accurately thereby guarantee on the chute 501 of saddle 5 and workbench 4, to be engaged between the respective slide in the chute 501, contraposition stably, avoiding grinding dirt bits enters and causes engagement inaccurate between this two, take place unsmooth when causing workbench 4 on the y direction, to slide, stop up, even the phenomenon of derailing.

Be similar at workbench 4 along the configuration state that first dust cover 402 is set on the two ends of y direction, between saddle 5 is with the third and fourth auxiliary saddles 505,506, also be respectively arranged with second dust cover 507.Second dust cover 507 has and first dust cover, 402 essentially identical structures, and the connected mode of it and the 3rd auxiliary saddle 505 (perhaps between the 4th auxiliary saddle 506) assists the connected mode between the saddle 503 (perhaps second assisting saddle 504) basic identical with first dust cover 402 and first.The chute districts that two second dust covers, 507, the third and fourth auxiliary saddle 505,506 is used for meshing the slide block 502 on the saddle 5 together with underframe 7, five form jointly the slide block on the saddle 5 502 and underframe 7 be engaged to respective slide slots district on the slide block 502 (as in not shown) be coated on interior airtight dust prevention system.So, reach equally and avoid grinding the dirt bits and enter between the chute district of slide block 502 that the slide block 502 of saddle 5 and underframe 7 be used for meshing saddle 5, so be used for meshing at the slide block 502 of saddle 5 and underframe 7 between the chute district of slide block 502 of saddle 5 obtain accurately, contraposition stably and running status.

Referring to Fig. 4 a, b, 5,6,7, and in conjunction with Fig. 1,3, as above-described, first feed mechanism 1 is fixedly arranged on the saddle 5, and it is used for controlling the location that saddle 5 obtains in the direction with respect to pillar 6 or underframe 7 on the x direction; The 3rd feed mechanism 3 is fixedly arranged on the pillar 6, and it is used for controlling the location that grinding carriage 8 obtains in the direction with respect to saddle 5 on the z direction.First feed mechanism 1 is provided with first a of supplementary feeding mechanism; The 3rd feed mechanism 3 is provided with the 3rd b of supplementary feeding mechanism.The positioning accuracy of the saddle 5 that the further lifting of first a of supplementary feeding mechanism first feed mechanism 1 is controlled.The positioning accuracy of the grinding carriage 8 that the further lifting of the 3rd b of supplementary feeding mechanism the 3rd feed mechanism 3 is controlled.Both have essentially identical structure first feed mechanism 1 and the 3rd feed mechanism 3, and first a of supplementary feeding mechanism and the 3rd b of supplementary feeding mechanism also have essentially identical structure.With each one in feed mechanism and supplementary feeding mechanism, for example first feed mechanism 1 and first a of supplementary feeding mechanism are example, introduce their structure situation in detail below.The user can be according to first feed mechanism, 1 assembling the 3rd feed mechanism 3 described below.Fig. 4 a shows the order of connection or the tectonic relationship when assembling between each parts of first feed mechanism 1 with dashed line form.

First feed mechanism 1 comprises reading wheel 101, control wheel 102, handle 103, worm gear 104, pressing plate 105, clutch shaft bearing 106, first spacer ring 107, second spacer ring 108, second bearing 109, pedestal 110, drive lead screw 111 and base side boards 112.

Reading wheel 101 is to read by himself rotation to be scaled the annulus that indicate reading of x direction linear movement apart from length, and it is fixed on the periphery of control wheel 102 by securing members such as bolts.Handle 103 is the poles by operator's gripping that are used to regulate 102 spinning movements of control wheel, and it is fixed in the position that control wheel 102 departs from the center of circle by securing members such as bolts, that is its wheel periphery edge.Worm gear 104 is fixed on the axis of control wheel 102 by securing members such as bolts.

Pedestal 110 is to have the hollow box body that slightly is the square shape.Clutch shaft bearing 106, first spacer ring 107, second spacer ring 108, second bearing 109 are fixed in the supported hole 113 that is arranged in the pedestal 110 successively along the x direction.After being mounted to together, above-mentioned reading wheel 101, control wheel 102, handle 103 and worm gear 104 dock forming after wearing from the both sides of supported hole 113 respectively with drive lead screw 111, so, the rotation that control wheel 102 produces can be delivered to drive lead screw 111, and rotatablely moving of drive lead screw 111 further is converted into the linear movement of saddle 5 along the x direction by threaded engagement.Reading wheel 101, control wheel 102,

handle

103 and 104 4 assemblies of worm gear are when assembling, reading wheel 101 wherein,

control wheel

102 and 104 3 assemblies of worm gear form coaxial assembling by securing members such as bolts, and handle 103 wherein is fixed in the position that control wheel 102 departs from the center of circle by securing members such as bolts.Reading wheel 101, control wheel 102, handle 103 and worm gear 104 are mounted to together, and the back has following structural form with the opposite joining relation that drive lead screw 111 forms: after an axle head of drive lead screw 111 passes clutch shaft bearing 106, first spacer ring 107, second spacer ring 108 and second bearing 109 that is positioned at supported hole 113, dock with the axis of the control wheel 102 that penetrates pedestal 110 from the opposite, after both dock can by securing members such as bolt realize the two between fixed configurations.The axle head that drive lead screw 111 passes clutch shaft bearing 106, first spacer ring 107, second spacer ring 108 and second bearing 109 in supported hole 113 via clutch shaft bearing 106 and second bearing 109 with keeping rotating relatively state between the pedestal 110.Before finishing above-mentioned preliminary assembling or simultaneously, the axle head that pressing plate 105 cooperates drive lead screws 111 to go into supported hole 113 is fixed along the position of x direction in supported hole 113 clutch shaft bearing 106, first spacer ring 107, second spacer ring 108 and second bearing 109.After finishing above-mentioned preliminary assembling, the side plate 112 that is divided into two in the present embodiment makes pedestal 110 be formed the internal environment of sealing by the capped side to pedestal 110 along the x direction of securing members such as bolt.

Reading wheel 101, control wheel 102, handle 103, worm gear 104, pressing plate 105, clutch shaft bearing 106, first spacer ring 107, second spacer ring 108, second bearing 109, pedestal 110, drive lead screw 111 and base side boards 112 are finished after the above-mentioned assembling, promptly constitute the first complete feed mechanism 1.First feed mechanism 1 is fixedly arranged at (referring to Fig. 3) on the saddle 5 by securing members such as bolts.

Comprise clasp 116, the 3rd bearing 117, worm screw holder 118, worm screw 119, worm set 120, the 4th bearing 121, the 3rd spacer ring 122, nut cap 123, installing plate 124, fine setting reading wheel 125, clutch knob 126, clutch handle 127, drive sleeve 128, eccentric wheel 129 and kinematic link 130 referring to Fig. 3,4a, b, 5, the first a of supplementary feeding mechanism.These parts dispose according to following relation.

Being parallel at pedestal 110 on the outer wall of x direction, is the top wall surface of pedestal 110 along the z direction in the present embodiment, the groove area 114 that is provided with indent and connects along the x direction.Trench bottom at groove area 114 is provided with first through hole 115 that connects this trench bottom.The cross section of first through hole 115 is similar to oval-shaped, and its transverse is parallel to the x direction.

Worm screw holder 118 have its section configuration corresponding to the location division 1181 of groove area 114 section configurations of pedestal 110 and from the location division 1181 hollow circular tubes that extend outwardly 1182.Hollow cavity 1183 cylindrical and the perforation location division 1181 and the hollow circular tubes 1182 of hollow circular tube 1182.The diameter of the hollow cavity 1183 of hollow circular tube 1182 both ends correspondences is contracted to other position less than hollow cavity 1183.Worm screw holder 118 is engaged to the groove area 114 of pedestal 110 with its location division 1181 and first through hole, the 115 interior modes of its hollow circular tube 1182 insertion pedestals 110 are placed on the pedestal 110, and the external diameter of hollow circular tube 1182 is less than the ellipse short shaft of first through hole 115, so, worm screw holder 118 can keep sliding mode along the x direction in the length range of the transverse qualification of first through hole 115.After worm screw holder 118 is placed on the pedestal 110, use has opening " C " shape clasp 116 and snaps in the annular groove that is arranged on hollow circular tube 1182 outer cylindrical wall, that is to say, be engaged to by its location division 1181 in the groove area 114 of pedestal 110, and clasp 116 snaps in the hollow circular tube 1182 outer wall annular grooves and kinematic link 130 described below is snapped onto form on hollow circular tube 1182 outer walls, worm screw holder 118 is suspended on the trench bottom of groove area 114, and this suspension status does not influence worm screw holder 118 sliding properties along the x direction in first through hole 115.

Before worm screw holder 118 is configured on the pedestal 110, at first the 3rd bearing 117, worm set 120, the 4th bearing 121 are assembled in the hollow cavity 1183 of worm screw holder 118.The be placed in two ends of hollow cavity 1183 of the 3rd bearing 117 and the 4th bearing 121.Worm set 120 is cylinder tube shape, and it is clamped between the 3rd bearing 117 and the 4th bearing 121.Immediately worm screw 119 is inserted through the 3rd bearing 117, worm set 120 and the 4th bearing 121 successively, again the 3rd spacer ring 122 liners after the axial outer end of the 4th bearing 121, nut cap 123 knobs on the worm screw 119 that from the 4th bearing 121, passes.So, the 3rd bearing 117, worm set 120 and 121 3 parts of the 4th bearing just are clamped in the hollow cavity 1183 of holder 118 jointly by corresponding expansion loop 1191 on the worm screw 119 and nut cap 123.In this clamp position, remain with the gap between the chamber wall of the outer tube wall of worm set 120 and hollow cavity 1183, remain with the gap between the outer wall of the inner tubal wall of worm set 120 and worm screw 119, freely rotate so that worm screw 119 can form stably in hollow cavity 1183.

When worm screw holder 118 is configured on the pedestal 110, kinematic link 130 also is placed on hollow circular tube 1182 outer walls of worm screw holder 118 by first circular hole 1131 that is provided with on it, and after clasp 116 snaps in the outer wall annular groove of hollow circular tube 1182, the position of kinematic link 130 is between the inwall and clasp 116 of pedestal 110 corresponding to the trench bottom of groove area 114, that is the position of kinematic link 130 is in the inner chamber of pedestal 110.Dispose rotating eccentric wheel 129 in second circular hole 1132 that is provided with on the kinematic link 130.

After the worm screw holder 118 that is mounted with worm screw 119 and eccentric wheel 129 was configured on the pedestal 110, installing plate 124 was capped to the outer wall of pedestal 110 corresponding to groove area 114 by securing members such as bolts.At this state, the upper end of worm screw 119 is passed in second through hole, 1241 backs of offering on the installing plate 124 and realizes being coaxial docking by securing members such as bolts with fine setting reading wheel 125; Simultaneously, be provided with on the eccentric wheel 129 take off post 1291 with drive sleeve 128 between realize being coaxial docking by securing members such as bolts, the termination, top of drive sleeve 128 is then passed the 3rd through hole 1242 backs that are opened on the installing plate 124 and is coaxial docking by the realization of securing members such as bolt with clutch knob 126.The mode that the

eccentric wheel

129 and 1291 both the axis keeping parallelisms that take off post are arranged that is to say

eccentric wheel

129 and 1291 both centers of circle in cross section that take off post keep the released state that do not overlap mutually.Clutch handle 127 is fixed on the lateral external wall of clutch knob 126, so that the operator grips.The cross section of second through hole 1241 is similar to oval-shaped, and its transverse is parallel to the x direction.The stroke that the stroke that second through hole 1241 allows worm screws 119 to slide along the x direction in the hole within it, the hollow circular tube 1182 that allows worm screw holders 118 with first through hole 115 slide along the x direction in the hole within it equates.So, when the operator passed through clutch handle 127 turn clutch knobs 126, the linear reciprocal movement of worm screw holder 118 along the x direction transmitted and converted to rotatablely moving of being produced via drive sleeve 128, eccentric wheel 129, kinematic link 130.

After first a of supplementary feeding mechanism finishes above-mentioned configuration, the gear teeth 1041 that worm screw 119 is arranged on the face of cylinder of the screwed end of thread 1192 of pedestal 110 inner chambers and the worm gear 104 that is arranged in pedestal 110 inner chambers align, the driving means that worm screw holder 118 becomes the end of thread 1192 and the gear teeth 1041 engagements or separates along the linear reciprocal movement of x direction.At the state of the end of thread 1192 with the gear teeth 1041 engagements, worm gear 104 is subjected to the restriction of worm screw 119 around self rotatablely moving of axis, its anglec of rotation depends on the gearratio of worm screw 119 and worm gear 104 fully, therefore, the user can determine suitable gear ratio value according to actual needs voluntarily, reaches the purpose of meticulous adjusting worm gear 104 anglecs of rotation; At the state that the end of thread 1192 separates with the gear teeth 1041, worm gear 104 can rotate freely around self axis, and the user can be by directly controlling worm gear 104 with its anglec of rotation of coarse adjustment.

Referring to Fig. 6,7 (please in conjunction with consulting Fig. 1), the 3rd b of supplementary feeding mechanism that shows the 3rd feed mechanism 3 and match with it.As described above, both have essentially identical structure the 3rd feed mechanism 3 and first feed mechanism 1, the 3rd b of supplementary feeding mechanism and first a of supplementary feeding mechanism also have essentially identical structure, therefore the applicant no longer is described with regard to their identical parts, and only its architectural difference is introduced.The 3rd feed mechanism 3 is used for controlling the location of grinding carriage 8 on the z direction, but because its drive lead screw 311 is taked horizontal arranging mode usually, so drive lead screw 311 converts to around the rotation of vertical to axle 303 via two

intermeshing bevel gears

301 and 302 around the rotation of trunnion axis.Wherein, bevel gear 301 and drive lead screw 311 coaxial assemblings, bevel gear 302 be used to control aforementioned vertical that grinding carriage 8 moves along the z direction to axle 303 coaxial assemblings.A sheathed protection tube 304 on the external cylindrical surface of drive lead screw 311.

Claims

1. surface grinding machine, comprise underframe, pillar, saddle, grinding carriage, workbench, described pillar erectly is fixed on the described underframe with the attitude that is parallel to third direction, described grinding carriage is supported on the described pillar slidably along the cooperation of described third direction by the 3rd slide rail and the 3rd chute, described saddle is along being supported in slidably on the described underframe perpendicular to the cooperation by first slide rail and first chute of the first direction of described third direction, described workbench is along being supported in slidably on the described saddle perpendicular to the cooperation by second slide rail and second chute of the second direction of described third direction and described first direction simultaneously, described surface grinding machine also comprises and is used to control first feed mechanism of described saddle along the sliding mode of described first direction, be used to control described workbench along second feed mechanism of the sliding mode of second direction be used to control three feed mechanism of described grinding carriage along the sliding mode of described third direction, described first feed mechanism comprises first worm gear and first drive lead screw that fixedly is assembled together with coaxial manner, described the 3rd feed mechanism comprises the 3rd worm gear and the 3rd drive lead screw that fixedly is assembled together with coaxial manner, it is characterized in that, comprise that also its turning cylinder is perpendicular to screwed first worm screw of axle among described first worm gear with order about described first worm thread and be engaged in the gear teeth of described first worm gear and break away from first clutch of the gear teeth of described first worm gear in the second place in primary importance.

2. surface grinding machine according to claim 1, it is characterized in that, comprise that also its turning cylinder is perpendicular to screwed the 3rd worm screw of axle among described the 3rd worm gear with order about described the 3rd worm thread to be engaged in one of position in the gear teeth of described the 3rd worm gear and break away from the 3rd clutch of the gear teeth of described the 3rd worm gear in two of position.

3. surface grinding machine according to claim 2, it is characterized in that, gearratio between described first worm screw and described first worm gear is: the rotational angle of described first worm screw: the rotational angle of described first worm gear＞1, the gearratio between described the 3rd worm screw and described the 3rd worm gear is: the rotational angle of described the 3rd worm screw: the rotational angle of described the 3rd worm gear＞1.

4. surface grinding machine according to claim 3, it is characterized in that, described first clutch comprises first eccentric wheel and first kinematic link, one end of described first kinematic link flexibly connects described first worm screw and its other end flexibly connects described first eccentric the wheel week, being provided with first at the position that described first eccentric wheel departs from its center of circle takes off post, described the 3rd clutch comprises the 3rd eccentric wheel and the 3rd kinematic link, one end of described the 3rd kinematic link flexibly connects described the 3rd worm screw and its other end flexibly connects the described the 3rd eccentric the wheel week, is provided with the 3rd at the position that described the 3rd eccentric wheel departs from its center of circle and takes off post.