CN103394714B - Gantry machining lathe - Google Patents
Gantry machining lathe Download PDFInfo
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- CN103394714B CN103394714B CN201310346133.XA CN201310346133A CN103394714B CN 103394714 B CN103394714 B CN 103394714B CN 201310346133 A CN201310346133 A CN 201310346133A CN 103394714 B CN103394714 B CN 103394714B
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Abstract
The invention discloses a gantry machining lathe. The gantry machining lathe comprises a lathe table and a worktable capable of sliding front and back on the lathe table, wherein stand pillars are respectively arranged at two sides of the rear end of the lathe table, a vertical motion part is movably arranged on the stand pillars, a left-right motion part capable of moving left and right is arranged on the vertical motion part, a machining head capable of swinging front and back is arranged at the lower end of the left-right motion part and comprises a main shaft component and a cutter driven by the main shaft component to rotate, the main shaft component comprises a main shaft located inside an outer shell, a first bearing component is arranged between the front end of the main shaft and the outer shell, a second bearing component is arranged between the rear end of the main shaft and the outer shell, and a lubricating liquid supply part supplies lubricating oil through a lubrication liquid pipeline. The gantry machining lathe is simple in structure, is good in lubricating effect, avoids abnormal temperature rise of the main shaft, provides centering auxiliary performance, and guarantees the smoothness and accuracy of machining.
Description
Technical field
The present invention relates to the technical field of machining tool, particularly relate to that a kind of precision is high, the gantry processor bed of anti-leak.
Background technology
Conventional lathe is all provided with fixed bearing and instrument and carry out pivotal main shaft, by the axis direction front end at machine tool chief axis, is installed on the multiple types of tools of tool holder respectively, can carries out multiple machining.
In existing lathe, tool holder have for clamping tool handle releasedly movable pinch unit and make the motor unit of movable pinch unit movement between handle off-position and handle clamped position, be contained in the axis direction through hole of main shaft.The motor unit of tool holding mechanism is driven by the driving mechanism (such as hydraulic cylinder mechanism) of spindle head device outside, along with the axis direction of self in main shaft through hole moves, movable pinch unit is moved.
In recent years, in order to highly-efficient processing, the bearing that spindle device for machine tool uses advances the high speed of main shaft, and existing cylinder roller bearing has: the outer ring on inner peripheral surface with outer ring raceway; Outer peripheral face has the inner ring of inner ring raceway; Roll the multiple rollers be arranged at freely between outer ring raceway and inner ring raceway; And there is the retainer in the multiple pocket holes for keeping multiple roller.
In such bearing, easily cause the discharge of lubricant to be deteriorated, cause cylinder roller bearing mid-winter; When carrying out grease lubrication, after by grease filled bearing, in order to make enclosed lubricating grease scatter equably at Bearing inner, or in order to make residue lubricating grease move along bearing periphery, so-called trial run is indispensable.Thus easily cause the discharge of lubricant to be deteriorated, and trial run spended time is long.And under the high temperature conditions, bearing centering is deteriorated, and makes machining accuracy reduce.
Thus, the required problem solved of prior art is that rolling bearing easily mid-winter occurs when lubricant is too much, and in high-speed motion, keep good centering.
For this reason, designer of the present invention is by concentrating on studies and designing, and comprehensive experience and the achievement being engaged in related industry for a long time for many years, research and design goes out a kind of gantry processor bed, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of gantry processor bed, its structure is simple, and high lubricating effect, avoids the mid-winter of bearing, and provides centering ilities, ensure that the smooth and easy of processing and precision.
For achieving the above object, the invention discloses a kind of gantry processor bed, it is characterized in that: comprise board and can on board the workbench of slide anteroposterior, the both sides, rear end of described board are respectively equipped with column, one vertical moving part is movably arranged on described column, described vertical movement component be provided with can move left and right move left and right portion, the described lower end moving left and right portion is provided with one can the processing head of swing, and described processing head comprises a spindle unit and the cutter by spindle unit driven rotary;
Described spindle unit comprises the main shaft being positioned at shell, one end of described main shaft is stretched out from shell, the dismountable external part being fixed on described main shaft of one cutter chuck, is provided with the stator that drive shaft rotates and the rotor be fixed on described main shaft between described main shaft and described shell;
Be provided with clutch shaft bearing parts between the front end of described main shaft and shell, be provided with the second parts of bearings between the rear end of main shaft and shell, a lubricating fluid supply unit is described clutch shaft bearing parts and the second parts of bearings supply lubricating oil by lubricating fluid pipeline.
Wherein: between described stator and shell, be provided with air ring, described air ring has multiple cooling bath, in described shell, be provided with temperature detector.
Wherein: described shell is also provided with vacuum passing away, one end of described vacuum passing away is communicated with described clutch shaft bearing parts, and the other end connects a vacuum generating unit.
Wherein: described clutch shaft bearing parts are ball bearing, described second parts of bearings is cylinder roller bearing.
Wherein: described clutch shaft bearing parts and the second parts of bearings are equipped with temperature detecting unit.
Wherein: these clutch shaft bearing parts comprise front ball bearing, rear ball bearing and the pushing portion between front ball bearing and rear ball bearing, between described pushing portion and front ball bearing and rear ball bearing, be provided with centering accessory, described centering accessory provides an augmented thrust of forward and backward ball bearing.
Wherein: described centering accessory comprises the groove be located on pushing portion and the elastomeric element being positioned at groove.
Wherein: described elastomeric element is O type ring, elastic clip or the spring that rubber is made.
By said structure, gantry processor bed of the present invention achieves following technique effect:
1, high lubricating effect, avoids mid-winter during high speed, ensure that the temperature stabilization in manufacture process;
2, main shaft spin stabilization, centring property is good, and the cylinder roller bearing of rear end and the ball bearing of front end can provide good stability;
3, there is centering accessory, by simple structure, provide the assistant spring power of centering, avoid bearing heat up time small centrifugal, achieve better centring property.
The present invention will be further described in detail by the following specific embodiments, and will be more apparent and obvious to understand further combined with the description of the drawings.
Accompanying drawing explanation
Fig. 1 shows the application schematic diagram of gantry processor bed of the present invention.
Fig. 2 shows the structural representation of spindle unit of the present invention.
Fig. 3 shows the enlarged diagram of clutch shaft bearing parts of the present invention.
Fig. 4 shows the portion enlarged diagram in Fig. 3.
Reference numeral:
101: board; 102: workbench; 103: column; 104: vertical moving part; 105: power part; 106: move left and right portion; 107: processing head; 108: spindle unit; 109: cutter; 11: main shaft; 12: shell; 13: stator; 14: air ring; 15: cutter chuck; 16: cutter shaft; 17: cooling bath; 18: temperature detector; 19: clutch shaft bearing parts; 20: the second parts of bearings; 21: lubricating fluid supply unit; 22: vacuum generating unit; 23: front ball bearing; 24: rear ball bearing; 25: pushing portion; 26: retainer; 27: centering accessory; 271: groove; 272: elastomeric element; 28: vacuum passing away.
Detailed description of the invention
See Fig. 1, show gantry processor bed of the present invention.
Described gantry processor bed comprise board 101 and can on board 101 workbench 102 of slide anteroposterior, the both sides, rear end of described board 101 are respectively equipped with column 103, one vertical moving part 104 is movably arranged on described column 103, one driver part (not shown) can drive the vertically movement on described column 103 of described vertical moving part 104, optionally, described vertical movement component 104 is a spreader.
Described vertical movement component 104 is provided with the portion that moves left and right 106 that can move left and right, the described portion 106 that moves left and right is provided with the power part 105 that it can be driven to carry out movement, thus, by the workbench that can move forward and backward, vertically moving vertical moving part, what can move left and right moves left and right portion, achieves any action in three-dimensional.
The described lower end moving left and right portion 106 is provided with one can the processing head 107 of swing, described processing head 107 comprises a spindle unit 108 and has the cutter 109 of spindle unit 108 driven rotary, optionally, described cutter 109 can be drill bit, milling cutter, the first-class cutting tool of grinding.
See Fig. 2, show the concrete structure schematic diagram of described spindle unit 108.
Described spindle unit 108 comprises the main shaft 11 being positioned at shell 12, one end of described main shaft 11 is stretched out from shell 12, the dismountable external part being fixed on described main shaft 11 of one cutter chuck 15, one cutter shaft 16 is dismountable to be held in described cutter chuck 15, known as shown in the figure, described cutter chuck 15 is fixed on the external part of described main shaft 11 by ball groove structure, and the bare terminal end of described cutter chuck 15 is taper.
The stator 13 that drive shaft 11 rotates and the rotor be fixed on described main shaft 11 is provided with between described main shaft 11 and described shell 12, described stator 13 is connected to control unit, when stator energising, generates an electromagnetic field, driving rotor rotates, and rotor then drives described main shaft 11 to carry out High Rotation Speed.
For lowering the temperature, air ring 14 is provided with between described stator 13 and shell 12, described air ring 14 has multiple cooling bath, for avoiding high temperature, be provided with temperature detector 18 in described shell 12, to detect in time, described temperature detector 18 is connected to control unit, upload in real time and record temperature, to report to the police in time, avoid security incident.
Clutch shaft bearing parts 19 are provided with between the front end of described main shaft 11 and shell 12, the second parts of bearings 20 is provided with between the rear end of main shaft 11 and shell 12, one lubricating fluid supply unit 21 is that described clutch shaft bearing parts 19 and the second parts of bearings 20 supply lubricating oil by lubricating fluid pipeline, optionally, described lubricating fluid supply unit 21 comprises oil pump, magnetic valve and grease-box, the switch of solenoid control supply oil circuit, oil pump is responsible in grease-box, extracting lubricating oil supplying, can not mid-winter when ensure that high speed.
Optionally, the front outer of described shell 12 is provided with multiple annular cooling bath 17, and described annular cooling bath 17 is surrounded by a covering part, to improve the cooling effect of shell 12 front end.
For realizing the smooth discharge of lubricating oil, described shell 12 is also provided with vacuum passing away, one end of described vacuum passing away is communicated with described clutch shaft bearing parts 19, the other end connects a vacuum generating unit 22, and optionally, described vacuum generating unit 22 is a vavuum pump, by the setting of vacuum generating unit 22, can removal of lubricant fast, ensure that the unimpeded of lubricating fluid, further avoid intensification during high speed.
As shown in the figure, described clutch shaft bearing parts 19 are ball bearing, and described second parts of bearings 20 is cylinder roller bearing.
Optionally, described clutch shaft bearing parts 19 and the second parts of bearings 20 are equipped with temperature detecting unit, and described temperature detecting unit is connected to control unit, to carry out temperature detection to described clutch shaft bearing parts 19 and the second parts of bearings 20 in time.
See Fig. 3, show the concrete structure of clutch shaft bearing parts 19, these clutch shaft bearing parts 19 comprise front ball bearing 23, rear ball bearing 24 and the pushing portion 25 between front ball bearing 23 and rear ball bearing 24, each ball bearing is equipped with the retainer 26 keeping ball in interior rolling, centering accessory 27 is provided with between described pushing portion 25 and front ball bearing 23 and rear ball bearing 24, described centering accessory 27 can provide an augmented thrust of forward and backward ball bearing, avoids the centrifugal of bearing.
See also Fig. 3, described vacuum passing away 28 is communicated between described front ball bearing 23 and rear ball bearing 24, with when needed, provides a vacuum adsorption force of front ball bearing 23 and rear ball bearing 24, accelerates the velocity of discharge of lubricating fluid.
See Fig. 4, described centering accessory 27 comprises the groove 271 be located on pushing portion 25 and the elastomeric element 272 being positioned at groove 271, as shown in the figure, the O type ring that described elastomeric element 272 is made for rubber, by precommpression, the elasticity of compression power to ball bearing 24 can be provided, optionally, described elastomeric element 272 also can be elastic clip or spring, as long as can realize the spring centering force to ball bearing.
Known by foregoing description, gantry processor bed accessory of the present invention has the following advantages:
1, high lubricating effect, avoids mid-winter during high speed, ensure that the temperature stabilization in manufacture process;
2, main shaft spin stabilization, centring property is good, and the cylinder roller bearing of rear end and the ball bearing of front end can provide good stability;
3, there is centering accessory, by simple structure, provide the assistant spring power of centering, avoid bearing heat up time small centrifugal, achieve better centring property.
It is evident that, above description and record be only citing instead of in order to limit disclosure of the present invention, application or use.Although described in an embodiment and be described in the drawings embodiment, but the present invention do not limit by accompanying drawing example and describe in an embodiment as the optimal mode thought at present to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment of description and the appended claim fallen into above.
Claims (3)
1. a gantry processor bed, it is characterized in that: comprise board and can on board the workbench of slide anteroposterior, the both sides, rear end of described board are respectively equipped with column, one vertical moving part is movably arranged on described column, described vertical moving part be provided with can move left and right move left and right portion, the described lower end moving left and right portion is provided with one can the processing head of swing, and described processing head comprises a spindle unit and the cutter by spindle unit driven rotary; Described spindle unit comprises the main shaft being positioned at shell, one end of described main shaft is stretched out from shell, the dismountable external part being fixed on described main shaft of one cutter chuck, is provided with the stator that drive shaft rotates and the rotor be fixed on described main shaft between described main shaft and described shell; Be provided with clutch shaft bearing parts between the front end of described main shaft and shell, be provided with the second parts of bearings between the rear end of main shaft and shell, a lubricating fluid supply unit is described clutch shaft bearing parts and the second parts of bearings supply lubricating oil by lubricating fluid pipeline; Between described stator and shell, be provided with air ring, described air ring has multiple cooling bath, in described shell, be provided with temperature detector; Described shell is also provided with vacuum passing away, and one end of described vacuum passing away is communicated with described clutch shaft bearing parts, and the other end connects a vacuum generating unit; Described clutch shaft bearing parts are ball bearing, and described second parts of bearings is cylinder roller bearing; Described clutch shaft bearing parts and the second parts of bearings are equipped with temperature detecting unit; These clutch shaft bearing parts comprise front ball bearing, rear ball bearing and the pushing portion between front ball bearing and rear ball bearing, between described pushing portion and front ball bearing and rear ball bearing, be provided with centering accessory, described centering accessory provides an augmented thrust of forward and backward ball bearing.
2. gantry processor bed as claimed in claim 1, is characterized in that: described centering accessory comprises the groove be located on pushing portion and the elastomeric element being positioned at groove.
3. gantry processor bed as claimed in claim 2, is characterized in that: described elastomeric element is O type ring, elastic clip or the spring that rubber is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310346133.XA CN103394714B (en) | 2013-08-10 | 2013-08-10 | Gantry machining lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310346133.XA CN103394714B (en) | 2013-08-10 | 2013-08-10 | Gantry machining lathe |
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| Publication Number | Publication Date |
|---|---|
| CN103394714A CN103394714A (en) | 2013-11-20 |
| CN103394714B true CN103394714B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310346133.XA Active CN103394714B (en) | 2013-08-10 | 2013-08-10 | Gantry machining lathe |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11289713A (en) * | 1998-03-31 | 1999-10-19 | Ntn Corp | Static pressure pneumatic bearing spindle device |
| EP0875685B1 (en) * | 1997-04-28 | 2004-11-03 | Ntn Corporation | Combined externally pressurized gas-magnetic bearing assembly and spindle device utilizing the same |
| CN101185975A (en) * | 2003-03-31 | 2008-05-28 | 日本精工株式会社 | Main shaft device and machine tool with the same |
| CN101961836A (en) * | 2010-09-17 | 2011-02-02 | 王元庆 | Numerically-controlled gantry type vertical and horizontal combined machine tool |
| CN102717263A (en) * | 2012-06-14 | 2012-10-10 | 青岛青机重型数控机床有限公司 | Numerical control combined boring, milling, drilling and grinding machine with movable beams and movable columns |
-
2013
- 2013-08-10 CN CN201310346133.XA patent/CN103394714B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0875685B1 (en) * | 1997-04-28 | 2004-11-03 | Ntn Corporation | Combined externally pressurized gas-magnetic bearing assembly and spindle device utilizing the same |
| JPH11289713A (en) * | 1998-03-31 | 1999-10-19 | Ntn Corp | Static pressure pneumatic bearing spindle device |
| CN101185975A (en) * | 2003-03-31 | 2008-05-28 | 日本精工株式会社 | Main shaft device and machine tool with the same |
| CN101961836A (en) * | 2010-09-17 | 2011-02-02 | 王元庆 | Numerically-controlled gantry type vertical and horizontal combined machine tool |
| CN102717263A (en) * | 2012-06-14 | 2012-10-10 | 青岛青机重型数控机床有限公司 | Numerical control combined boring, milling, drilling and grinding machine with movable beams and movable columns |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103394714A (en) | 2013-11-20 |
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