CN201871935U - Numerical-control turning and grinding combined machine tool - Google Patents
Numerical-control turning and grinding combined machine tool Download PDFInfo
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- CN201871935U CN201871935U CN2010205889495U CN201020588949U CN201871935U CN 201871935 U CN201871935 U CN 201871935U CN 2010205889495 U CN2010205889495 U CN 2010205889495U CN 201020588949 U CN201020588949 U CN 201020588949U CN 201871935 U CN201871935 U CN 201871935U
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- workbench
- combined machine
- working table
- main shaft
- numerical control
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Abstract
The utility model provides a numerical-control turning and grinding combined machine tool which is characterized in that a spindle component and a tailstock corresponding to the spindle component are arranged on one side of the upper surface of a rectangular machine tool body; a working table for supporting a grinding wheel rack and a turning tool rack is arranged on the other side of the machine tool body; the spindle component comprises a spindle base and a servo electric spindle arranged on the spindle base; the working table comprises a first working table capable of conducting parallel translation in the axial direction of the electric spindle; a second working table moving in the direction perpendicular to the moving direction of the first working table is arranged above the first working table; a horizontally rotating working table is arranged above the second working table; the grinding wheel rack is arranged on one side of the horizontally rotating working table; the turning tool rack is arranged on the on the other side of the horizontally rotating working table; rolling heavy-duty linear guide rail pairs are arranged at the bottoms of the first and the second working tables; and a linear motor for driving the second working table to move is arranged at the bottom of the second working table. The rigidity and the stability of the integral structure of the numerical-control turning and grinding combined machine tool are greatly improved; and the machining precision is reliably guaranteed, and high-precision manufacture in camshaft machining is realized.
Description
Technical field
The utility model is about a kind of Digit Control Machine Tool, relates in particular to a kind of numerical control grinding combined machine that is used for turning and grinding longaxones parts.
Background technology
Be accompanied by the fast development of China's automobile industry, make the field to the camshaft quality requirement improves constantly and update speed is accelerated day by day present situation in order to satisfy engine, particularly after the extensive use, the domestic market is more urgent to the demand of high-rate cutting equipment in the engine manufacturing for technology for cold shock casting camshaft (cold shock casting camshaft is that a kind of hardness of part blank satisfies the foundry goods that camshaft finished product hardness requires).
The camshaft of domestic production at present needs to carry out roughing earlier on lathe, on cylindrical grinder grinding is carried out at bearings mounted position then, and grinding is carried out at the cam position to camshaft on camshaft grinding machine at last; Because the processing of camshaft need be carried out on multiple lathe through multiple working procedure, the per pass operation all will be carried out clamping again to workpiece, therefore, has caused the machining accuracy accumulated error of camshaft part big, and the process-cycle is long.
The lathe bed of the domestic numerical control camshaft grinding machine that existing domestic Camshaft Production enterprise uses and most of Numerical Control Cam travelling wheelhead roll grinder of import mainly is to adopt T shape structure, X is to adopting the V--flat structure with Z usually to guide rail, grinding carriage is X to motion, and workbench drives main axle unit and is Z to motion; This structure only is applicable to that the cam portion to camshaft finish grindes and the light load grinding, at underload and folk prescription when cutting force is worked, still can guarantee the machining accuracy of part, but, for the lathe that turning and grinding are combined with each other is unaccommodated, because turning is opposite with the cutting force direction of grinding, when turning part, workbench may be owing to stressed and upwards lift.
Have again, the main axle unit of the Numerical Control Cam travelling wheelhead roll grinder of China's production at present is to pass to main shaft by servomotor by cog belt, make main shaft drive workpiece and do gyration, because there is certain elasticity in cog belt, the rotation of motor is delivered to main shaft needs the regular hour, so there is the problem of rigidity deficiency, computer instruction postpone in this structure; The feed motion of grinding carriage (X-axis) is made up of servomotor and ball-screw, owing to reasons such as leading screw and leading screw support self rigidity problems, caused between the feed motion of main shaft gyration angle and X-axis and existed bigger error, this error has caused the error of phase angle of the sum of errors cam of camshaft of camshaft part shape.
Cold shock casting camshaft is a kind of part that does not need the later stage quenching, hardness before the camshaft that the hardness ratio of itself is traditional quenches is high a lot, common lathe and cutter have been difficult to it is processed, so the manufacturing enterprise of camshaft presses for and a kind ofly can cast the lathe of the high rigidity that camshaft processes to cold shock.
In view of this, the inventor relies on relevant design and manufacturing experience for many years, proposes a kind of numerical control grinding combined machine, to overcome the defective of prior art.
The utility model content
The purpose of this utility model is to provide a kind of numerical control grinding combined machine, can just can finish the processing of camshaft by a clamping, to eliminate the big accumulated error that multiple clamping causes.
Another purpose of the present utility model is to provide a kind of numerical control grinding combined machine, control the structure combining design by the full cut-off ring control of adopting servo electric main shaft with the full cut-off ring of linear electric motors, cooperate the requirement of satisfying processing non-circular curve cylindrical between the main shaft gyration angle that makes lathe and the grinding carriage traverse feed, make machining accuracy be ensured reliably.
Another purpose of the present utility model is to provide a kind of numerical control grinding combined machine, by the structural design that adopts the rectangle lathe bed, roll heavily loaded line slideway auxiliary and cross table and rotary table superpose, the rigidity of whole lathe and the plyability of function are improved.
The purpose of this utility model is achieved in that a kind of numerical control grinding combined machine, is provided with spindle unit and the tailstock corresponding with spindle unit in upper surface one side of a rectangle lathe bed, and the lathe bed opposite side is provided with the workbench of supporting grinding carriage and tool holder; Described spindle unit is made of main shaft base and the servo electric main shaft that is arranged on the base, described workbench includes with electric main shaft and axially makes the parallel first mobile workbench, this first workbench top is provided with second workbench that moves in vertical direction with the first movable workbench direction, and described first workbench and second workbench constitute a cross table; Described cross table top is provided with one and horizontally rotates workbench, and this horizontally rotates workbench one side described grinding carriage is set, and horizontally rotates the workbench opposite side described tool holder is set; Described first workbench and second workbench bottom are equipped with the heavily loaded line slideway auxiliary that rolls, and described second workbench bottom is provided with one and drives its linear electric motors that move.
In a better embodiment of the present utility model, a circle grating is set on the described servo electric main shaft, cooperate with the circle grating by the encoder in the servo electric main shaft to form servo electric main shaft full cut-off ring control.
In a better embodiment of the present utility model, a cover linear grating is set between described first workbench and second workbench, form the control of linear electric motors full cut-off ring thus.
In a better embodiment of the present utility model, this linear grating is made of the linear grating read head and the corresponding linear grating scale that is arranged on second workbench that are arranged on first workbench.
In a better embodiment of the present utility model, described first workbench bottom is provided with one and drives its ball screw assembly, that moves, and described leading screw is connected with one first servomotor.
In a better embodiment of the present utility model, the described workbench that horizontally rotates is rotated by one second driven by servomotor, described horizontally rotating between the workbench and second workbench is provided with the end-toothed disc detent mechanism, and the described rotating shaft position that horizontally rotates workbench is provided with to make and horizontally rotates the disk spring that workbench and second workbench are combined closely.
In a better embodiment of the present utility model, described rectangular bed is as a body structure, and this box house is provided with a plurality of gussets that have perforate.
In a better embodiment of the present utility model, the front portion of described servo electric main shaft is provided with the parts that are installed that workpiece is installed.
In a better embodiment of the present utility model, described grinding combined machine is provided with protective cover, dust arrester and metal fillings retracting device.
From the above mentioned, numerical control grinding combined machine of the present utility model has adopted the design form of rectangle lathe bed, the feeding of emery wheel and shift applied right-angled intersection workbench and horizontally rotate the structure of workbench stack, make integrally-built rigidity of lathe and stability be greatly improved; Machine tool chief axis (C axle) is the full cut-off ring control of servo electric main shaft, X-axis adopts the control of linear electric motors full cut-off ring, the Z axle adopts the servomotor half-closed loop control, make the sync response error of X-axis and C axle reach minimum of a value, make machining accuracy obtain reliable guarantee, realized the high accuracy manufacturing of camshaft processing.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1: the plan structure schematic diagram of the utility model numerical control grinding combined machine.
Fig. 2: the utility model numerical control grinding combined machine face structural representation.
Fig. 3: the left TV structure schematic diagram of the utility model numerical control grinding combined machine.
Fig. 4: the Working table structure schematic diagram of the utility model numerical control grinding combined machine.
Fig. 5: the spindle unit structural representation of the utility model numerical control grinding combined machine.
Fig. 6: the rectangular bed body structure schematic diagram of the utility model numerical control grinding combined machine.
Fig. 7: the structural representation of the utility model numerical control grinding combined machine cathetus motor and linear grating.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
As Fig. 1～shown in Figure 4, the utility model provides a kind of numerical control grinding combined machine 100, upper surface one side at a rectangle lathe bed 1 is provided with spindle unit 2 and the tailstock 3 corresponding with spindle unit, and rectangle lathe bed 1 opposite side is provided with the workbench 6 of supporting grinding carriage 4 and tool holder 5; As shown in Figure 5, described spindle unit 2 is made of main shaft base 22 and the servo electric main shaft 21 that is arranged on the base, and the front portion of described servo electric main shaft is provided with the parts (not shown) that is installed that workpiece is installed.As Fig. 2, Fig. 3 and shown in Figure 4, described workbench 6 includes with electric main shaft and axially makes the parallel first mobile workbench 61 (Z is to workbench), these first workbench, 61 tops are provided with second workbench 62 (X is to workbench) that moves in vertical direction with the first movable workbench direction, and described first workbench 61 and second workbench 62 constitute a cross table; Described cross table top is provided with one and horizontally rotates workbench 63, and this horizontally rotates workbench 63 1 sides described grinding carriage 4 is set, and horizontally rotates workbench 63 opposite sides described tool holder 5 is set; Described first workbench 61 and second workbench, 62 bottoms are equipped with the heavily loaded line slideway auxiliary 7 that rolls, and described second workbench 62 bottoms are provided with one and drive its linear electric motors that move 8.
Numerical control grinding combined machine of the present utility model to the process of camshaft is: (1) with the cam shaft blank parts fixation on machine tool chief axis; (2) utilize bearing installation position, milling key groove on the rough turn camshaft of cutter (by the cross table feeding) on the tool holder; (3) horizontally rotate 180 ° of work table rotations, utilize emery wheel (by the cross table feeding) the grinding bearing installation position on the grinding carriage; (4) corase grind cam position, correct grinding cam position; (5) unload the camshaft part, part processing is finished.
From the above mentioned, numerical control grinding combined machine of the present utility model integrates powerful turning and high-rate grinding function, can cast camshaft to cold shock and finish the turning of camshaft part and grinding, keyseat technical process such as (the milling functions of utilizing the turning dynamic tool apron to have) by clamping.Because the processing of camshaft workpiece is that a clamping is finished, so reduced in the prior art because the big accumulated error that part needs multiple clamping to cause; The utility model has adopted rectangle lathe bed, cross table and has horizontally rotated the structural design of workbench stack, has improved the plyability of the rigidity and the function of lathe.
In the present embodiment, as shown in Figure 6, described rectangle lathe bed 1 is the body structure of the approximate square chest of a profile, and it is strong that this structure has stability, the characteristics that bending resistance and anti-torsional strength are high.This box house is provided with the gusset 11 that multilayer has perforate 12, has further strengthened the flexing resistance and the anti-torsional strength of lathe bed, simultaneously, owing to strengthened the mobile performance of air after the gusset perforate, and so heat dispersion has obtained good improvement.
Because the utility model is integrated turning function and high-rate grinding function on a machine tool, for time of reducing function conversion with dwindle the needs that take the space, work-yard, therefore, the utility model has adopted cross table and the structural design that horizontally rotates the workbench stack.
In the present embodiment, its effect of cross table that first workbench 61 and second workbench 62 constitute is, the Z of existing Grinder bench is combined with each other to motion to the X of motion and grinding carriage, in process realization X to Z to feed motion.Described first workbench 61 and second workbench, 62 bottoms be equipped with roll heavily loaded line slideway auxiliary 7 as X to Z to support, heavily loaded line slideway auxiliary has the advantages that bearing capacity is big, operate steadily, can bear moment of torsion at four direction owing to roll, therefore, can satisfy the requirement of turning function and high-rate grinding function, the ability that has realized carrying multi-direction cutting force.
As shown in Figure 3, in the present embodiment, described first workbench 61 bottoms are provided with one and drive the ball screw assembly, 611 that first workbench 61 moves, and described leading screw is connected with one first servomotor; Drive described first workbench 61 by first servomotor by ball screw assembly, 611 and carry out Z to round mobile.
The X of cross table is directly to drive by the linear electric motors 8 that second workbench, 62 bottoms are provided with to motion, therefore, eliminated in the prior art owing to reasons such as leading screw and leading screw support self rigidity problems, cause main shaft gyration angle and X to feed motion between exist problem than mistake, realized high positive drive.
In the present embodiment, grinding carriage 4 and power car knife rest 5 are installed in horizontally rotate on the workbench 63; In the design that horizontally rotates workbench 63, as shown in Figure 4, the described workbench 63 that horizontally rotates drives rotation by one second servomotor 631, described horizontally rotating between the workbench 63 and second workbench 62 is provided with end-toothed disc detent mechanism 632, this end-toothed disc detent mechanism 632 comprises the lower tooth disk 6322 that is arranged on the last fluted disc 6321 that horizontally rotates workbench 63 belows and is arranged on second workbench, 62 tops, second servomotor 631 drives by transmission mechanism and goes up fluted disc 6321, horizontally rotates workbench 63 rotations thereby make.The described rotating shaft position that horizontally rotates workbench 63 is provided with to make and horizontally rotates the disk spring that workbench 63 and second workbench 62 are combined closely.Owing to adopted driven by servomotor to horizontally rotate the frame mode that work table rotation, end-toothed disc location and disk spring clamp, thereby realized revolution positioning accuracy height, the reliable requirement of fastening safety, can finish the conversion of turning and grinding function apace in (in 10 seconds).
In order to satisfy the requirement of non-circular curves such as grinding cam, the utility model has adopted servo electric main shaft full cut-off ring control and the control of linear electric motors full cut-off ring.
In the present embodiment, a circle grating 211 is set on the described servo electric main shaft 21, as shown in Figure 5, cooperates the servo electric main shaft full cut-off ring control of formation with circle grating 211 by the encoder 212 in the servo electric main shaft 21.The servo electric main shaft that present embodiment adopts main shaft and servomotor to be combined as a whole, because the accuracy of detection of servo electric main shaft can not satisfy the needs of cam calibration, so present embodiment has been installed a round grating 211 that indexing accuracy is very high on main shaft, corner by 211 pairs of main shafts of circle grating carries out accurate position probing, and the result that will detect feeds back to Computerized digital control system, computer will be justified after the detection data of grating 211 and data that servo electric spindle controller sends compare, automatically carry out error compensation, so just realized the full cut-off ring control of servo electric main shaft.
In the present embodiment, as shown in Figure 7, one cover linear grating 9 is set between described first workbench 61 and second workbench 62, this linear grating 9 is made of the linear grating read head 91 and the corresponding linear grating scale 92 that is arranged on second workbench 62 that are arranged on first workbench 61, forms the control of linear electric motors full cut-off ring thus.Because linear electric motors itself can not carry out position probing,, present embodiment is used for X is detected to the position of workbench so having installed a cover linear grating 9 on first workbench 61 (Z is to workbench) and second workbench 62 (X is to workbench).The result that linear grating 9 will detect feeds back to Computerized digital control system, after the data that computer sends the detection data and the linear electric motors controller of linear grating are compared, carries out error compensation automatically, has so just realized the full cut-off ring control of linear electric motors.In the present embodiment, the stator 81 of linear electric motors is installed in Z on workbench 61, and the mover 82 of linear electric motors is installed in X on workbench 62; The scale 92 of linear grating is installed in X on workbench, and read head 91 is installed in Z on workbench.
Because servo electric main shaft and linear electric motors all are the elements that directly drives by electromagnetism, its response speed just depends on the time constant of motor and the arithmetic speed of computer, therefore, got rid of since transmission stiffness to the conforming influence that links, and then reduced the error of phase angle of the sum of errors cam of camshaft of camshaft part shape, further improved the quality of camshaft; Adopted servo electric main shaft (main shaft and servomotor are combined as a whole) and linear electric motors (mover of linear electric motors and X are rigidly connected to the workbench of motion) to drive the system stiffness that has improved lathe widely, make owing to the influence of machine tool system rigidity to the numerical control stability of a system reduces significantly, machine tool numerical control system is more stable, and the uniting and adjustment of digital control system are simple.
Owing to adopted the full cut-off ring control of servo electric main shaft and the full cut-off ring control of linear electric motors, make the corner and being linked of X-axis of main shaft reach more accurate control, make the requirement of having satisfied processing non-circular curve cylindrical that cooperates between the feeding of angle and X-axis of main shaft gyration of lathe, make machining accuracy obtain reliable guarantee, realized the high accuracy manufacturing of camshaft processing.
In a better embodiment of the present utility model, described grinding combined machine is provided with protective cover, dust arrester, metal fillings retracting device and Hydraulic Station etc.
From the above mentioned, numerical control grinding combined machine of the present utility model has adopted the design form of rectangle lathe bed, the feeding of emery wheel and shift applied right-angled intersection workbench and horizontally rotate the structure of workbench stack, make integrally-built rigidity of lathe and stability be greatly improved; Machine tool chief axis (C axle) is the full cut-off ring control of servo electric main shaft, X-axis adopts the control of linear electric motors full cut-off ring, the Z axle adopts the servomotor half-closed loop control, make the sync response error of X-axis and C axle reach minimum of a value, make machining accuracy obtain reliable guarantee, realized the high accuracy manufacturing of camshaft processing.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (9)
1. numerical control grinding combined machine, it is characterized in that: upper surface one side at a rectangle lathe bed is provided with spindle unit and the tailstock corresponding with spindle unit, and the lathe bed opposite side is provided with the workbench of supporting grinding carriage and tool holder; Described spindle unit is made of main shaft base and the servo electric main shaft that is arranged on the base, described workbench includes with electric main shaft and axially makes the parallel first mobile workbench, this first workbench top is provided with second workbench that moves in vertical direction with the first movable workbench direction, and described first workbench and second workbench constitute a cross table; Described cross table top is provided with one and horizontally rotates workbench, and this horizontally rotates workbench one side described grinding carriage is set, and horizontally rotates the workbench opposite side described tool holder is set; Described first workbench and second workbench bottom are equipped with the heavily loaded line slideway auxiliary that rolls, and described second workbench bottom is provided with one and drives its linear electric motors that move.
2. numerical control grinding combined machine as claimed in claim 1 is characterized in that: a circle grating is set on the described servo electric main shaft, cooperates with the circle grating by the encoder in the servo electric main shaft to form servo electric main shaft full cut-off ring control.
3. numerical control grinding combined machine as claimed in claim 1 is characterized in that: a cover linear grating is set between described first workbench and second workbench, forms the control of linear electric motors full cut-off ring thus.
4. numerical control grinding combined machine as claimed in claim 3 is characterized in that: this linear grating is made of the linear grating read head and the corresponding linear grating scale that is arranged on second workbench that are arranged on first workbench.
5. numerical control grinding combined machine as claimed in claim 1 is characterized in that: described first workbench bottom is provided with one and drives its ball screw assembly, that moves, and described leading screw is connected with one first servomotor.
6. numerical control grinding combined machine as claimed in claim 1, it is characterized in that: the described workbench that horizontally rotates is rotated by one second driven by servomotor, described horizontally rotating between the workbench and second workbench is provided with the end-toothed disc detent mechanism, and the described rotating shaft position that horizontally rotates workbench is provided with to make and horizontally rotates the disk spring that workbench and second workbench are combined closely.
7. numerical control grinding combined machine as claimed in claim 1 is characterized in that: described rectangular bed is as a body structure, and this box house is provided with a plurality of gussets that have perforate.
8. numerical control grinding combined machine as claimed in claim 1 is characterized in that: the front portion of described servo electric main shaft is provided with the parts that are installed that workpiece is installed.
9. numerical control grinding combined machine as claimed in claim 1 is characterized in that: described grinding combined machine is provided with protective cover, dust arrester and metal fillings retracting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205889495U CN201871935U (en) | 2010-11-02 | 2010-11-02 | Numerical-control turning and grinding combined machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205889495U CN201871935U (en) | 2010-11-02 | 2010-11-02 | Numerical-control turning and grinding combined machine tool |
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| Publication Number | Publication Date |
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| CN201871935U true CN201871935U (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205889495U Expired - Lifetime CN201871935U (en) | 2010-11-02 | 2010-11-02 | Numerical-control turning and grinding combined machine tool |
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| CN (1) | CN201871935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059554A (en) * | 2010-11-02 | 2011-05-18 | 北京京仪世纪电子股份有限公司 | Numerically controlled turning-grinding combined machine tool |
-
2010
- 2010-11-02 CN CN2010205889495U patent/CN201871935U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059554A (en) * | 2010-11-02 | 2011-05-18 | 北京京仪世纪电子股份有限公司 | Numerically controlled turning-grinding combined machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANQUAN BIIC MACHINE TOOL CO., LTD. Free format text: FORMER OWNER: BEIJING JINGYI CENTURY ELECTRONICS CO., LTD. Effective date: 20111220 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100079 FENGTAI, BEIJING TO: 075000 ZHANGJIAKOU, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111220 Address after: 075000, Hebei, Zhangjiakou province Wanquan County hole town, Zhangjiakou Xishan industrial agglomeration area Patentee after: Beijing Jingyi Machine Tool Co., Ltd. Address before: 100079 Beijing City, Fengtai District Songjiazhuang Yongwai weizikeng 2 Patentee before: Beijing Jingyishiji Electronic Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110622 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |