阅读说明：本技术 高精度立式针齿壳复合磨床 (High-precision vertical needle gear shell composite grinding machine ) 是由 刘岳兴 于 2019-09-27 设计创作，主要内容包括：本发明涉及一种高精度立式针齿壳复合磨床,包括机身、立柱及转台,立柱上设有磨削机头总成,磨削机头总成包括沿横向排布的齿槽磨削砂轮总成以及内外圆端面磨削砂轮总成,机身上设有用于驱动转台升降的转台升降装置,转台经转台升降装置可升降设置于机身上,所述立柱上设有驱动磨削机头总成沿横向往复移动的X向滑移装置,X向滑移装置包括至少两根X向导轨副、支承于X向导轨副上的鞍座以及驱动鞍座沿横向滑移的X向驱动机构,其中一根X向导轨副设于立柱顶端,另一根X向导轨副设于立柱上且位于顶端位置X向导轨副的斜下前方,所述齿槽磨削砂轮总成和内外圆端面磨削砂轮总成安装于鞍座上。具有设备刚性好、运行稳定可靠的优点。(The invention relates to a high-precision vertical needle gear shell composite grinding machine, which comprises a machine body, a vertical column and a rotary table, wherein a grinding machine head assembly is arranged on the vertical column, the grinding machine head assembly comprises a tooth socket grinding wheel assembly and an inner and outer circular end face grinding wheel assembly which are arranged along the transverse direction, a rotary table lifting device for driving the rotary table to lift is arranged on the machine body, the rotary table is arranged on the machine body in a lifting way through the rotary table lifting device, the upright post is provided with an X-direction sliding device for driving the grinding machine head assembly to transversely reciprocate, the X-direction sliding device comprises at least two X-direction guide rail pairs, a saddle supported on the X-direction guide rail pairs and an X-direction driving mechanism for driving the saddle to transversely slide, one X-direction guide rail pair is arranged at the top end of the upright post, the other X-direction guide rail pair is arranged on the upright post and is positioned in the oblique lower front of the X-direction guide rail pair at the top end, and the tooth socket grinding wheel assembly and the inner and outer circular end face grinding wheel assemblies are arranged on the saddle. Has the advantages of good equipment rigidity and stable and reliable operation.)

1. The utility model provides a vertical pin-tooth shell compound grinding machine of high accuracy, is equipped with the stand and is used for the revolving stage of fixed work piece on the fuselage including the fuselage, be equipped with grinding machine head assembly on the stand, grinding machine head assembly includes along the tooth's socket grinding wheel assembly and interior excircle end face grinding wheel assembly of transversely arranging, its characterized in that: the fuselage on be equipped with the revolving stage elevating gear who is used for driving the revolving stage to go up and down, the revolving stage sets up on the fuselage through revolving stage elevating gear liftable, be equipped with the X of drive grinding aircraft nose assembly along horizontal reciprocating motion to the displacement device, X is to the displacement device including two piece at least X to the guide rail vice, support saddle and drive saddle along the X of horizontal slip to actuating mechanism on the X is to the guide rail vice, wherein one X is to the guide rail vice locate the stand top, another X is to the guide rail vice locate on the stand and be located the oblique place ahead of top position X to the guide rail vice, grinding tooth's socket emery wheel assembly and interior excircle terminal surface grinding emery wheel assembly install on the saddle.

2. The high-precision vertical pin gear shell compound grinding machine is characterized in that an upper horizontal installation platform for installing the guide rail pair is arranged at the top end of the upright post, a lower horizontal installation platform which is positioned at the obliquely lower front part of the upper horizontal installation platform is arranged on the upright post, the two X-direction guide rail pairs are respectively paved on the upper horizontal installation platform and the lower horizontal installation platform, an inclined plane is arranged at the top of the upright post, the slope angle of the inclined plane is 30 degrees ~ 60 degrees, the upper horizontal installation platform is arranged at the upper part of the inclined plane at the top of the upright post, and the lower horizontal installation platform is positioned at the lower part of the inclined plane at the top of the upright post.

3. The high-precision vertical pin gear shell compound grinding machine as claimed in claim 1, characterized in that: the rotary table lifting device comprises a lifting sliding table, a Z-direction track pair and a lifting driver, wherein the Z-direction track pair is arranged on the stand column, the lifting sliding table is matched with the stand column in a lifting and sliding manner through the Z-direction track pair, the rotary table is matched with the lifting sliding table in a rotating manner on the lifting sliding table, and a balance cylinder for supporting the lifting sliding table on the machine body is arranged between the bottom of the lifting sliding table and the machine body.

4. The high-precision vertical pin gear shell compound grinding machine as claimed in claim 3, characterized in that: the cylinder body of the balance cylinder is hinged to the machine body, the cylinder arm of the balance cylinder is hinged to the bottom of the lifting sliding table, the balance cylinder is arranged at the position of the central axis of the lifting sliding table, the hinge direction of the cylinder body of the balance cylinder or the hinge direction of the cylinder arm of the balance cylinder is perpendicular to the Z-direction rail pair, and the hinge direction of the cylinder body is perpendicular to the hinge direction of the cylinder arm.

5. The high-precision vertical pin gear shell compound grinding machine as claimed in claim 1, characterized in that: the grinding wheel of tooth's socket grinding emery wheel assembly corresponds the cooperation and has tooth's socket grinding emery wheel finishing device, and tooth's socket grinding emery wheel finishing device includes mounting bracket, tooth's socket grinding emery wheel finishing head and repaiies following mechanism, and the mounting bracket is fixed in on stand or revolving stage elevating gear, and it installs on the mounting bracket to repair following mechanism, it includes along the fore-and-aft direction that the Y that slides to the slide linear Y to the slide along the Y of cooperation on the mounting bracket to repair following mechanism and drive Y to follow the motor, and tooth's socket grinding emery wheel finishing head is installed and is slided along the fore-and-aft direction along with Y on Y to the slide, and tooth's.

6. The high-precision vertical pin gear shell compound grinding machine according to claim 5, characterized in that: the dressing following mechanism further comprises a rotating seat arranged in a horizontal mode and a rotary driving motor driving the rotating seat to rotate, the tooth socket grinding wheel dressing head is mounted on the rotating seat and rotates along with the rotating seat, and the rotating seat is mounted on the Y-direction sliding seat and slides along the front-back direction along with the Y-direction sliding seat.

7. The high-precision vertical pin gear shell compound grinding machine according to claim 5, characterized in that: the tooth's socket grinding emery wheel is repaiied first and is set up on the roating seat along horizontal position is adjustable, is equipped with X to position adjustment subassembly on the roating seat, and X is including installation bedplate, adjusting screw and adjusting nut to position adjustment subassembly, and tooth's socket grinding emery wheel is repaiied first fixed mounting on the installation bedplate, but installation bedplate is along horizontal sharp sliding fit on the roating seat, and adjusting nut is fixed in installation bedplate bottom, adjusting screw and adjusting screw thread fit, and adjusting screw location rotating fit is on the roating seat.

8. The high-precision vertical pin gear shell compound grinding machine as claimed in claim 1, characterized in that: the rotary table lifting device is provided with an inner and outer circle end face grinding wheel dressing device which can lift along with the rotary table, the inner and outer circle end face grinding wheel dressing device comprises a fixing frame, an inner and outer circle end face grinding wheel dressing head and an inner and outer circle end face grinding wheel dressing head driving motor, the inner and outer circle end face grinding wheel dressing head is horizontally and rotatably matched with the fixing frame, and the inner and outer circle end face grinding wheel dressing head driving motor drives the inner and outer circle end face grinding wheel dressing head to rotate.

9. The high-precision vertical pin gear shell compound grinding machine as claimed in claim 1, characterized in that: tooth's socket grinding wheel assembly includes tooth's socket grinding wheel installation main shaft, and tooth's socket grinding wheel installation main shaft lower extreme is equipped with two mutual disposition's emery wheel bedplate, is equipped with V type location axle hole groove on the emery wheel bedplate, and demountable installation has the lid to locate the opening side's of V type location axle hole groove positioning pressing plate on the emery wheel bedplate, and positioning pressing plate is last to be equipped with the V type relative with V type location axle hole groove and compresses tightly the groove, install the grinding wheel axle on the tooth's socket grinding wheel of tooth's socket grinding wheel assembly, and grinding wheel axle axial both ends are installed respectively in the V type of two emery wheel bedplate and are compressed tightly the inslot and spacing through positioning pressing plate, the degree of depth that the V type compressed tightly the groove is less than V type location axle hole groove.

10. The high-precision vertical pin gear shell compound grinding machine as claimed in claim 1, characterized in that: the tooth groove grinding wheel assembly and the inner and outer circle end face grinding wheel assemblies are arranged on the same saddle.

Technical Field

The invention relates to the technical field of processing machines, in particular to a vertical needle gear shell composite grinding machine.

Background

Industrial robots are important industrial technologies for the intelligentized and flexible development of manufacturing industry and the promotion of industrial upgrading, and are also means for solving the labor shortage caused by the aging of population. The transmission performance of a cycloid reducer, a core component of an industrial robot, directly influences the motion precision of the robot. In the transmission of the cycloid speed reducer, the transmission of the cycloid pin wheel has the largest influence on the motion precision, and the manufacturing precision of the pin gear shell of the cycloid pin wheel determines the stability, the bearing capacity and the service life of the cycloid speed reducer.

The existing grinding processing of the pin gear shell adopts a compound grinding machine, for example, a compound grinding machine tool for grinding the pin gear shell (an authorization notice number CN 103264342B) disclosed in the patent document with chinese patent number CN 201310195905.4, the main structure of which is as follows: the vertical column and the workpiece fixture are arranged on the machine body, the vertical column is provided with a tooth groove grinding wheel head and an inner and outer circular end face grinding wheel head, the tooth groove grinding wheel head comprises a tooth groove grinding wheel spindle and a cylindrical grinding wheel, the inner and outer circular end face grinding wheel head comprises an inner and outer circular end face grinding wheel spindle and a disc-shaped grinding wheel, the tooth groove grinding wheel head and the inner and outer circular end face grinding wheel head are called a head assembly for convenience of description, the tooth groove grinding wheel head and the inner and outer circular end face grinding wheel head are installed on the vertical column through a sliding mechanism, the sliding mechanism comprises a lifting mechanism and a horizontal transverse sliding rail mechanism, the tooth groove grinding wheel head and the inner and outer circular end face grinding wheel head are installed on a Y-direction sliding plate of the horizontal transverse sliding rail mechanism.

The composite grinding machine tool for grinding the gear housing of the existing structure has the following defects: the aircraft nose always holds and adopts glide machanism to hoist on the stand, glide machanism adopts horizontal transverse sliding rail mechanism to install and realizes on elevating system, the grinding machine is the main equipment, its aircraft nose always holds heavy, and equipment is in high-speed running state, the aircraft nose always holds inertia when moving is big, horizontal transverse sliding rail mechanism adopts the Y of plane installation to slide structural design under, there are not enough and the poor problem of operational stability of rigidity, elevating system bears transverse sliding rail mechanism and aircraft nose always holds, elevating system bears heavy, the lifting motion inertia is big, therefore the motor of aircraft nose assembly can form equipment resonance under operation and glide machanism's operation, thereby influence equipment moving reliability, influence the part machining precision. Therefore, the existing composite grinding machine tool cannot well adapt to the grinding processing of the pin gear shell required by high-precision processing.

Disclosure of Invention

The invention aims at: in order to overcome the defects in the prior art, the invention provides the high-precision vertical needle gear shell composite grinding machine which is stable and reliable in operation.

in order to achieve the purpose, the invention provides the following technical scheme:

The utility model provides a vertical pin-tooth shell compound grinding machine of high accuracy, is equipped with the stand and is used for the revolving stage of fixed work piece on the fuselage including the fuselage, be equipped with grinding machine head assembly on the stand, grinding machine head assembly includes along the tooth's socket grinding wheel assembly and interior excircle end face grinding wheel assembly of transversely arranging, its characterized in that: the fuselage on be equipped with the revolving stage elevating gear who is used for driving the revolving stage to go up and down, the revolving stage sets up on the fuselage through revolving stage elevating gear liftable, be equipped with the X of drive grinding aircraft nose assembly along horizontal reciprocating motion to the displacement device, X is to the displacement device including two piece at least X to the guide rail vice, support saddle and drive saddle along the X of horizontal slip to actuating mechanism on the X is to the guide rail vice, wherein one X is to the guide rail vice locate the stand top, another X is to the guide rail vice locate on the stand and be located the oblique place ahead of top position X to the guide rail vice, grinding tooth's socket emery wheel assembly and interior excircle terminal surface grinding emery wheel assembly install on the saddle.

By adopting the technical scheme, the saddle moves left and right and is close to the grinding machine head assembly (enters a grinding position), the rotary table slides up and down in a reciprocating manner to realize tooth socket grinding, the lifting and transverse reciprocating sliding actions are respectively realized on the rotary table and the grinding machine head assembly, the movable mechanism of the grinding machine head assembly matched with the upright column is reduced, the total mass is reduced, the rigidity of the grinding machine head supported on the upright column is increased, the inertia of equipment in operation is reduced, and the equipment is more stable and reliable in operation; in addition, the rotary table is adopted to lift, the grinding machine head assembly is in transverse sliding operation, the grinding machine head adopts the saddle to support the X-direction guide rail pair at the top end of the upright post and the other guide rail pair which is positioned at the oblique lower front part of the X-direction guide rail pair at the top end, so that the rigidity of the saddle supported on the upright post is greatly improved, namely the rigidity of the movable support of the grinding machine head on the upright post is improved, the station switching stability of the transverse sliding of the grinding machine head assembly and the stability of the grinding machine head during operation are improved, and the resonance of equipment is avoided; thereby achieving the purpose of well meeting the requirement of workpiece processing precision.

Preferably, the top of the upright is provided with an upper horizontal mounting platform for mounting the guide rail pair, the upright is provided with a lower horizontal mounting platform which is positioned in the oblique lower front of the upper horizontal mounting platform, the X-direction guide rail pair is respectively paved on the upper horizontal mounting platform and the lower horizontal mounting platform, the top of the upright is provided with an inclined plane, the slope angle of the inclined plane is 30 degrees ~ 60 degrees, the upper horizontal mounting platform is arranged on the upper part of the inclined plane at the top of the upright, and the lower horizontal mounting platform is positioned on the lower part of the inclined plane at the top of the upright.

Preferably, revolving stage elevating gear includes lift slip table, Z to vice and the lift driver of track, and Z is to vice the installing on the stand of track, and the lift slip table cooperates on the stand through Z to vice lift sliding of track, and revolving stage normal running fit is equipped with between lift slip table bottom and the fuselage and supports the balance cylinder on the fuselage with the lift slip table. Under this structural design, the support to lift slip table is realized to the balancing cylinder to reduce Z to the vice atress of track and play buffering cushioning effect, make the operation of lift slip table more reliable and stable.

Preferably, the cylinder body of the balance cylinder is hinged on the machine body, the cylinder arm of the balance cylinder is hinged at the bottom of the lifting sliding table, the balance cylinder is arranged at the position of the central axis of the lifting sliding table, the hinge direction of the cylinder body of the balance cylinder or the hinge direction of the cylinder arm of the balance cylinder is vertical to the Z-direction rail pair, and the hinge direction of the cylinder body is vertical to the hinge direction of the cylinder arm. This structural design, the automatic aligning of balancing cylinder guarantees to be parallel to the track pair with Z to improve the stability of lift slip table operation.

Preferably, the emery wheel of tooth's socket grinding emery wheel assembly corresponds the cooperation and has tooth's socket grinding emery wheel finishing device, and tooth's socket grinding emery wheel finishing device includes the mounting bracket, and tooth's socket grinding emery wheel is repaiied the head and is repaiied the following mechanism, and the mounting bracket is fixed in on stand or revolving stage elevating gear, and it installs on the mounting bracket to repair following mechanism, it includes along the fore-and-aft direction to slide to cooperate the Y on the mounting bracket to follow the motor to follow to the Y that the slide straight line slided to the drive Y, and tooth's socket grinding emery wheel is repaiied the head and is installed and is slided along the fore-and-aft direction along with Y on Y to the slide, and. Under this structural design, realize that tooth's socket grinding emery wheel repairment head is followed in Y to, cooperation tooth's socket grinding emery wheel is along with saddle horizontal lateral shifting, realizes the interpolation to make tooth's socket grinding emery wheel assembly's emery wheel be fit for the profile of tooth abrasive machining of different grade type, the commonality is good, and the abrasive machining precision of the emery wheel of tooth's socket grinding emery wheel assembly is higher.

Preferably, the dressing and following mechanism further comprises a rotating seat arranged in a horizontal mode and a rotary driving motor driving the rotating seat to rotate, the tooth socket grinding wheel dressing head is mounted on the rotating seat and rotates along with the rotating seat, and the rotating seat is mounted on the Y-direction sliding seat and slides along the front-back direction along with the Y-direction sliding seat. Under the structural design, the interpolation can finish any tooth profile and realize normal tracking interpolation, thereby improving the grinding machining precision of the grinding wheel of the tooth space grinding wheel assembly.

Preferably, the tooth's socket grinding emery wheel is repaiied the head and is set up on the roating seat along horizontal position is adjustable, is equipped with X to position adjustment subassembly on the roating seat, and X is including installation bedplate, adjusting screw and adjusting nut to position adjustment subassembly, and tooth's socket grinding emery wheel is repaiied first fixed mounting on the installation bedplate, but the installation bedplate is along horizontal sharp sliding fit on the roating seat, and adjusting nut is fixed in installation bedplate bottom, adjusting screw and adjusting screw thread fit, and adjusting screw location rotating fit is on the roating seat. With the structural design, the horizontal and transverse position adjustment of the tooth space grinding wheel dressing head is realized,thereby realizingArbitrary half And (5) finishing the radial arc.

Preferably, the turntable lifting device is provided with an inner and outer circular end face grinding wheel dressing device which is lifted along with the turntable, the inner and outer circular end face grinding wheel dressing device comprises a fixing frame, an inner and outer circular end face grinding wheel dressing head and an inner and outer circular end face grinding wheel dressing head driving motor, the inner and outer circular end face grinding wheel dressing head is horizontally and rotatably matched with the fixing frame, and the inner and outer circular end face grinding wheel dressing head driving motor drives the inner and outer circular end face grinding wheel dressing head to rotate. Under the structural design, the grinding wheel dressing of the grinding wheel assembly with the inner and outer circular end surfaces is realized.

Preferably, tooth's socket grinding wheel assembly includes tooth's socket grinding wheel installation main shaft, and tooth's socket grinding wheel installation main shaft lower extreme is equipped with two mutual disposition's emery wheel bedplate, is equipped with V type location axle hole groove on the emery wheel bedplate, and demountable installation has the lid to locate the opening side's in V type location axle hole groove positioning pressure plate on the emery wheel bedplate, and positioning pressure plate is last to be equipped with the V type relative with V type location axle hole groove and compresses tightly the groove, install the grinding wheel axle on the tooth's socket grinding wheel of tooth's socket grinding wheel assembly, grinding wheel axle axial both ends are installed respectively in the V type of two emery wheel bedplate and are compressed tightly the inslot and spacing through positioning pressure plate, the degree of depth that the groove was compressed tightly to the V type is less than V type location axle hole groove. Under this structural design, the high accuracy location and the quick replacement of the emery wheel axle of being convenient for. Under this structural design, tooth's socket grinding emery wheel of tooth's socket grinding emery wheel assembly is installed on the emery wheel axle, the emery wheel axle is fixed a position through V type pressing groove and positioning pressure plate, V type pressing groove through the emery wheel bedplate compresses tightly the V type of groove and positioning pressure plate and compresses tightly the groove cooperation and can realize emery wheel axle quick positioning, pull down positioning pressure plate and can realize the dismantlement of tooth's socket grinding emery wheel, during the installation, the emery wheel axle is arranged in on the V type pressing groove of emery wheel bedplate and is fixed through positioning pressure plate's V type pressing groove, reach the installation of tooth's socket grinding emery wheel, have tooth's socket grinding emery wheel easy dismounting operation and.

Preferably, the tooth groove grinding wheel assembly and the inner and outer circular end face grinding wheel assemblies are mounted on the same saddle. Under this structural design, the structure is simplified, guarantees the position degree of the tooth form groove, both ends bearing position and the needle gear shell installation position of the needle gear shell that processing was accomplished, reaches the high accuracy processing requirement of needle gear shell.

The invention is further described below with reference to the accompanying drawings.

drawings

Fig. 1 is a schematic structural diagram of a high-precision vertical pin gear shell composite grinding machine according to an embodiment of the invention;

FIG. 2 is a schematic structural view of a tooth space grinding wheel dressing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of a tooth space grinding wheel assembly according to an embodiment of the present invention;

Fig. 4 is a schematic structural view of a spindle for mounting a tooth space grinding wheel according to an embodiment of the present invention.

Detailed Description

Referring to fig. 1 ~ 4, it should be noted that, for better understanding of the orientation of the invention, the directions are indicated in the drawings, for example, "transverse", "horizontal transverse" and "X direction" are the X axis directions shown in the drawings, "up and down" and "Z direction" are the Z axis directions shown in the drawings, the corresponding "top" is the Z1 direction of the Z axis of the component, "down" is the Z2 direction of the Z axis of the component, "front and back" and Y direction "are the Y axis directions shown in the drawings, and the corresponding" front "is the Y1 direction of the Y axis direction.

The invention discloses a high-precision vertical needle gear shell composite grinding machine, which comprises a machine body 1, wherein an upright post 2 and a rotary table 3 for fixing a workpiece (a needle gear shell) are arranged on the machine body 1, the rotary table 3 is driven by a high-precision motor, a grinding machine head assembly is arranged on the upright post 2, the grinding machine head assembly comprises a tooth socket grinding wheel assembly 4 and an inner and outer circular end face grinding wheel assembly 5 which are transversely arranged, the tooth socket grinding wheel assembly 4 is used for tooth socket grinding of the needle gear shell, the inner and outer circular end face grinding wheel assembly 5 is used for inner and outer circular end face grinding of the needle gear shell, the tooth socket grinding wheel assembly 4 can be designed by adopting the prior art, generally, the inner and outer circular end face grinding wheel assembly 5 comprises an inner and outer circular end face grinding wheel 51, an inner and outer circular end face grinding wheel driving shaft 52 and an inner and outer circular end face grinding wheel driving motor 53, the inner and outer circular end face grinding wheel 51 is arranged on, the inner and outer circular end face grinding wheel driving shaft 52 is driven by an inner and outer circular end face grinding wheel driving motor 53, the tooth groove grinding wheel assembly 4 comprises a tooth groove grinding wheel mounting main shaft 41, a tooth groove grinding wheel 42 and a tooth groove grinding wheel driving mechanism for driving the tooth groove grinding wheel 42, the tooth groove grinding wheel is rotationally matched with the tooth groove grinding wheel mounting main shaft 41 and is driven by the tooth groove grinding wheel driving mechanism, and the tooth groove grinding wheel driving mechanism can be generally realized by matching a motor with a synchronous belt 43; in order to improve the rigidity and the operation stability of equipment, the invention adopts the following improved design: the grinding machine is characterized in that a rotary table lifting device 6 used for driving the rotary table 3 to lift is arranged on the machine body 1, the rotary table 3 can be arranged on the machine body 1 in a lifting mode through the rotary table lifting device 6, the upright post 2 is provided with an X-direction sliding device used for driving the grinding machine head assembly to move transversely in a reciprocating mode, the X-direction sliding device comprises at least two X-direction guide rail pairs 7, a saddle 2-1 supported on the X-direction guide rail pairs 7 and an X-direction driving mechanism 2-2 used for driving the saddle 2-1 to slide transversely, one X-direction guide rail pair 7-1 is arranged at the top end of the upright post 2, the other X-direction guide rail pair 7-2 is arranged on the upright post 2 and located in the oblique lower front of the X-direction guide rail pair 7-1 at the top end, and the tooth groove grinding wheel. The tooth socket grinding wheel assembly 4 and the inner and outer circular end face grinding wheel assembly 5 are arranged on the same saddle 2-1, so that the structure is simplified, and the position degree of the tooth-shaped groove and the bearing positions at two ends of the processed needle gear shell is ensured; certainly, the tooth groove grinding wheel assembly and the inner and outer circular end face grinding wheel assembly can be independently provided with saddles, but the number of the saddles is increased, so that the structure is complicated. The X-direction driving mechanism is conventional technology, such as a motor matched with a lead screw and nut mechanism.

The top end of the upright post 2 is provided with an upper horizontal installation platform 21 for installing a guide rail pair, an X-direction guide rail pair 7-1 correspondingly positioned at the top end of the upright post 2 is flatly installed on the upper horizontal installation platform 21, the upright post 2 is provided with a lower horizontal installation platform 22 positioned below and in front of the upper horizontal installation platform 21, the other X-direction guide rail pair 7-2 is flatly installed on the lower horizontal installation platform 22, the X-direction guide rail pair is flatly installed, so that the upright post has a good support effect on the saddle, and the support rigidity and the running stability of the saddle are improved.

The rotary table lifting device 6 comprises a lifting sliding table 61, a Z-direction track pair 62 and a lifting driver 63, the lifting driver 63 is preferably realized by matching a motor with a screw nut mechanism, the Z-direction track pair 62 is installed on the upright post 1, the lifting sliding table 62 is matched on the upright post 1 in a lifting sliding way through the Z-direction track pair 62, the rotary table 3 is matched on the lifting sliding table 61 in a rotating way, and a balance cylinder 6-1 for supporting the lifting sliding table 6 on the body 1 is arranged between the bottom of the lifting sliding table 6 and the body 1. The balance cylinder realizes the support to the lift slip table to reduce Z to the vice atress of track and play buffering cushioning effect, make the operation of lift slip table more reliable and stable.

further, the balance cylinder 6-1 corresponds to the central axis position of the lifting sliding table, the cylinder body 6-11 of the balance cylinder 6-1 is hinged to the machine body 1 (the hinged end 6-111 of the cylinder body is shown in the figure), the cylinder arm 6-12 of the balance cylinder 6-1 is hinged to the bottom of the lifting sliding table 61 (the hinged end 6-121 of the cylinder arm is shown in the figure), the hinged direction of the cylinder body of the balance cylinder 6-1 or the hinged direction of the cylinder arm 6-12 of the balance cylinder 6-1 is perpendicular to the Z-direction rail pair 62, the hinged direction of the cylinder arm of the balance cylinder can be towards the installation position of the Z-direction rail pair, and the hinged direction of the cylinder body 6-11 is perpendicular to the hinged direction of the cylinder arm 6-12. The balance cylinder under this design can automatic aligning, guarantees to be parallel to the track pair with Z to improve the stability of lift slip table operation.

Usually, the inner and outer circular end face grinding wheels and the tooth socket grinding wheel are both provided with corresponding trimming devices to ensure the processing precision of the pin gear shell. In this embodiment, the vertical column 2 is provided with a tooth space grinding wheel dresser 8 correspondingly matched with a grinding wheel of the tooth space grinding wheel assembly 4, of course, the tooth space grinding wheel dresser 8 may also be arranged on the turntable lifting device 6, the tooth space grinding wheel dresser 8 includes a mounting frame 81, a tooth space grinding wheel dresser 82 and a dressing following mechanism, the mounting frame 81 is fixed on the vertical column 2 (or the mounting frame 81 is fixed on the lifting sliding table 61 of the turntable lifting device 6), the dressing following mechanism is installed on the mounting frame 81, the dressing following mechanism includes a Y-direction sliding base 83 sliding fitted on the mounting frame 81 in a sliding manner in a front-back direction and a Y-direction following motor 84 driving the Y-direction sliding base 83 to linearly slide, the grinding wheel dresser 82 is installed on the Y-direction sliding base 83 and slides along a front-back direction (i.e. a Y-direction) with the Y-direction sliding base 83, the tooth space grinding wheel dresser 82 is arranged towards, the tooth space grinding wheel finishing head moves in the Y direction and is matched with the tooth space grinding wheel to horizontally and transversely move along with the saddle, interpolation is achieved, and therefore the grinding wheel of the tooth space grinding wheel assembly is suitable for tooth profile grinding processing of different types, and the universality is good.

Further, the dressing follow-up mechanism further comprises a rotating seat 87 arranged in a horizontal mode (in this case, it is to be noted that the horizontal mode is horizontally arranged on the plane where the X direction and the Y direction are located) and a rotary driving motor 88 for driving the rotating seat 87 to rotate, the tooth-groove grinding wheel dressing head 82 is installed on the rotating seat 87 and rotates along with the rotating seat 87, and the rotating seat 87 is installed on the Y-direction sliding seat 83 and slides along the front-back direction along with the Y-direction sliding seat 83. The rotation of the tooth space grinding wheel dressing head is introduced to realize normal interpolation, so that the grinding machining precision of the grinding wheel of the tooth space grinding wheel assembly is improved. And under the condition that the Y-direction sliding seat is fixed, the grinding processing of the tooth space grinding wheel with high-precision circular-arc tooth profile can be realized by the rotating seat.

In order to further improve the trimming reliability, the trimming following mechanism further comprises a trimming centering assembly, the trimming centering assembly comprises a Z-direction sliding seat 85 which is matched on the Y-direction sliding seat 83 in a lifting and sliding mode, a Z-direction driving motor 86 which drives the Z-direction sliding seat 85 to lift and lower, and a rotating seat 87 is matched on the Z-direction sliding seat 85 in a rotating mode. The tooth space grinding wheel dressing head moves in the Z direction to be aligned with the tooth space grinding wheel, and grinding machining precision is improved.

Further, the tooth space grinding wheel truing head 82 is adjustable along horizontal transverse position and is set up on roating seat 87, be equipped with X to position adjustment subassembly on the roating seat 87, X is including installation bedplate 881, adjusting screw 882 and adjusting nut (not shown in the figure), tooth space grinding wheel truing head 82 fixed mounting is on installation bedplate 881, but installation bedplate 881 along horizontal sharp sliding fit on roating seat 87, adjusting nut is fixed in installation bedplate 881 bottom, adjusting screw and adjusting screw 882 screw thread fit, adjusting screw 882 fixed position normal running fit is on roating seat 87. Realizes the horizontal and transverse position adjustment of the tooth socket grinding wheel finishing head, thereby realizing the rapid and convenient adjustment of the size of the arc,Realize the repair of circular arcs with any radius machine for finishing. The adjusting screw can be manually operated, and can also be provided with a motor so as to realize automation.

The inner and outer circle end face grinding wheel dressing device 9 is arranged on the rotary table lifting device 6 and lifted along with the rotary table 3, the inner and outer circle end face grinding wheel dressing device 9 is installed on the lifting sliding table 61, the inner and outer circle end face grinding wheel dressing device 9 comprises a fixing frame 91, an inner and outer circle end face grinding wheel dressing head 92 and an inner and outer circle end face grinding wheel dressing head driving motor 93, the fixing frame 91 is fixed on the lifting sliding table 61 of the rotary table lifting device 6, the inner and outer circle end face grinding wheel dressing head 92 is horizontally and rotatably matched with the fixing frame 91, and the inner and outer circle end face grinding wheel dressing head driving motor 93 drives the inner and outer circle end face grinding wheel dressing head 92 to rotate. The grinding wheel finishing of the grinding wheel assembly with the inner and outer circular end surfaces is realized. The inner and outer circle end face grinding wheel finishing head can be a diamond pen or a diamond wheel according to different materials of the inner and outer circle end face grinding wheel.

For changing the defects that the traditional tooth space grinding wheel mounting structure is complex and the dismounting operation is inconvenient, the following structure is adopted for optimization: tooth's socket grinding wheel assembly 4 includes tooth's socket grinding wheel installation main shaft 41, and tooth's socket grinding wheel installation main shaft 41 lower extreme is equipped with two mutual disposition's grinding wheel bedplate 411, is equipped with V type location axle hole groove 412 on the grinding wheel bedplate 411, and demountable installation has the lid to locate the locating pressing plate 413 of the opening side of V type location axle hole groove 412 on the grinding wheel bedplate 411, and locating pressing plate 413 is last to be equipped with the V type relative with V type location axle hole groove 412 and compresses tightly groove 414, install emery wheel axle 44 on tooth's socket grinding wheel assembly 4's the tooth's socket grinding wheel 42, and emery wheel axle 44 axial both ends are installed respectively in the V type of two grinding wheel bedplate 411 compresses tightly the inslot 412 and spacing through. Under this structural design, tooth's socket grinding emery wheel of tooth's socket grinding emery wheel assembly is installed on the emery wheel axle, the emery wheel axle is fixed a position through V type pressing groove and positioning pressure plate, V type pressing groove through the emery wheel bedplate compresses tightly the V type of groove and positioning pressure plate and compresses tightly the groove cooperation and can realize emery wheel axle quick positioning, pull down positioning pressure plate and can realize the dismantlement of tooth's socket grinding emery wheel, during the installation, the emery wheel axle is arranged in on the V type pressing groove of emery wheel bedplate and is fixed through positioning pressure plate's V type pressing groove, reach the installation of tooth's socket grinding emery wheel, have tooth's socket grinding emery wheel easy dismounting operation and.

Further, the depth of the V-shaped pressing groove 412 is smaller than that of the V-shaped positioning shaft hole groove 414, and the included angle α of the V-shaped pressing groove 412 is larger than that of the V-shaped positioning shaft hole groove 414. The high-precision positioning and the quick assembly disassembly of the grinding wheel shaft are facilitated. The guide rail pair is a conventional fitting, and generally comprises a guide rail and a slide block which is in sliding fit with the guide rail.

The high-precision vertical needle gear shell composite grinding machine has the following technical effects:

1. The Z-direction motion is arranged on the rotary table, the X-direction tooth socket grinding wheel assembly and the inner and outer circular end face grinding wheel assemblies are transversely arranged on the grinding machine head assembly in a moving mode, the movable mechanisms matched with the grinding machine head assembly on the upright posts are reduced, the total mass is reduced, the rigidity of the grinding machine head supported on the upright posts is increased, the inertia of equipment in operation is reduced, and the equipment is more stable and reliable in operation; in addition, the turntable is adopted to lift, the grinding machine head assembly is in transverse sliding operation, the grinding machine head assembly can be supported by the saddle matched with the X-direction guide rail pair at the top end of the upright post and the other guide rail pair which is positioned at the inclined lower front of the X-direction guide rail pair at the top end, the rigidity of the saddle supported on the upright post is greatly improved, namely the rigidity of the movable support of the grinding machine head on the upright post is improved, the station switching stability of the transverse sliding of the grinding machine head assembly and the stability of the grinding machine head during operation are improved, and the equipment resonance is avoided; thereby achieving the purpose of well meeting the requirement of workpiece processing precision; and Z upwards moves and arranges on the revolving stage, and the tooth's socket grinding wheel assembly and interior outer circular face grinding wheel assembly station switch arrangement on grinding aircraft nose assembly upwards of X, has better spatial layout, and the revolving stage corresponds with grinding aircraft nose assembly formation better spatial position, compact structure.

2. On the basis of adopting the lifting action of the rotary table and the transverse sliding action of the grinding machine head assembly, the tooth socket grinding wheel dressing device is arranged on the upright post, and the inner and outer circular end face grinding wheel dressing devices are arranged on the lifting device.