CN102407458B - Ram type boring and milling head with independent built-in accessory indexing mechanism - Google Patents
Ram type boring and milling head with independent built-in accessory indexing mechanism Download PDFInfo
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- CN102407458B CN102407458B CN 201110431941 CN201110431941A CN102407458B CN 102407458 B CN102407458 B CN 102407458B CN 201110431941 CN201110431941 CN 201110431941 CN 201110431941 A CN201110431941 A CN 201110431941A CN 102407458 B CN102407458 B CN 102407458B
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Abstract
The invention mainly relates to a ram type boring and milling head with an independent built-in accessory indexing mechanism for a numerical control plane-boring and milling machine, which mainly solves the problems of poor C-axis indexing accuracy consistency and rigidity of the ram type boring and milling head. The ram type boring and milling head comprises a ram, wherein an upper fluted disc is fixed on the lower end face of the ram; a sleeve is arranged in the ram; a thrust sleeve which is fixedly arranged on the ram is arranged between an upper outer shaft shoulder of the sleeve and an inner shaft shoulder of the ram; a plurality of groups of blind holes are arranged on the lower end face of the thrust sleeve; springs and push rods are respectively arranged in the blind holes; the lower part of each push rod is in contact with a shaft shoulder of the sleeve; a gear wheel is fixed on the upper end face of the sleeve and is meshed with a pinion; an axial annular groove is arranged on a hub of the gear wheel; a piston is arranged in the annular groove; the lower end face of the piston is in contact with the thrust sleeve; the pinion is fixed on a gearbox which is connected with a servo motor; the pinion, the gearbox and the servo motor are respectively arranged inside the ram; and a lower fluted disk which can be meshed with the upper fluted disk is fixed on a lower outer shaft shoulder of the sleeve. The indexing of the ram type boring and milling head is driven by adopting a separate motor, thereby the indexing accuracy and the integral rigidity of the milling head are improved and the improvement on the manufacturability of the whole manufacture process and the reduction on the manufacturing cost are facilitated.
Description
Technical field
The present invention relates generally to the used a kind of instrument of digital-control boring-milling machine, specifically a kind of ram type boring and milling head outer with independent built-in annex indexing mechanism.
Background technology
The ram type boring and milling head outer is the core component of plane milling and boring machine, these parts are realized the main transmission of lathe, front end at ram boring and milling head can be equipped with the different annex head of multiple function, when institute's fittings head is the angular milling head, the quality of its structure is directly connected to dynamic and static rigidity, precision and the working (machining) efficiency of lathe, the difference of version causes the version meeting of right angle annex head different, also concerns the processing range of lathe simultaneously.The manual calibration of the many employings of traditional right angle annex head calibration mode, raising along with the Machinery Tool Automation degree, requirement to the automatic indexing function is more and more higher, the automatic indexing mode of existing angular milling head can be divided into two big classes substantially, a kind of is 4X90 ° of transposition, another kind is the transposition that realizes multiple angles by end-toothed disc, the upper and lower end fluted disc is installed on the annex head, this dual mode all is calibration of realizing the C axle by the ram main shaft of boring and milling head outer, calibration power is from the main shaft of lathe, and detecting element is the spindle encoder of lathe.The transmission chain length is longer, gear clearance cumulative errors by whole main transmission, backlass is big, positioning accuracy is relatively low during calibration, milling head structure relative complex, body of milling head is made up of two parts, and poor rigidity is a little, simultaneously the annex main shaft automatically external cooling in pine folder cutter, the cutter, and oil circuit and the gas circuit of functions such as the clear cutter air of main shaft comparatively complicated, be difficult for realizing.
Summary of the invention
The present invention is directed to the shortcoming of existing ram type boring and milling head outer C axle indexing accuracy uniformity and poor rigidity, a kind of ram type boring and milling head outer with independent built-in annex indexing mechanism is provided.This boring and milling head outer calibration adopts independent motor-driven, thereby improves indexing accuracy and the integral rigidity of angular milling head, and is conducive to improve the manufacturability in the whole manufacturing process, reduces manufacturing cost.
Technical scheme of the present invention is: a kind of ram type boring and milling head outer with independent built-in annex indexing mechanism, comprise ram, wherein, the fixing fluted disc of going up in the lower surface of described ram, the built-in sleeve of ram, be equipped with the thrust housing that is fixed on the ram between the interior shaft shoulder of the shaft shoulder and ram outside the top of sleeve, there are some groups of blind holes the lower surface of thrust housing, blind hole is built-in with spring and push rod, the bottom of push rod contacts with the shaft shoulder of sleeve, the upper surface of sleeve is gear wheel fixedly, and gear wheel and pinion have axial ring-shaped groove on the wheel hub of gear wheel, ring-shaped groove is built-in with piston, and the lower surface of piston contacts with thrust housing; Described pinion is fixed on the reduction box, and reduction box is connected with servomotor, and pinion, reduction box and servomotor be installed in outside the bottom of ram inner sleeve on the shaft shoulder fixing can with the lower tooth disk of last fluted disc engagement.
Described sleeve is supported on the inwall of fluted disc and thrust housing by needle bearing one and needle bearing two or oil-containing Sliding bush; On the described gear wheel oil-in is arranged, and with sleeve the oil circuit that communicates is arranged, have some groups to be used for the hole system that flow media passes through on this outer sleeve; Described sleeve liner flow ring, the bearing of the inwall fixed support main shaft of flow ring, the spiral groove of useful flow thermostatical oil or water on the corresponding outer wall of flow ring endoporus running in bearings; Also be processed with the leakage sealed groove that some roads are realized the ring-shaped groove that circumferencial direction is provided and delivered arbitrarily with the various Oil, Water, Gas road on the sleeve and prevented various Oil, Water, Gas media on the cylindrical of flow ring; 4 cover annex tensioning mechanism and 1 group of accessory identification code-disc also are equipped with in the lower surface of described sleeve.
The present invention has following beneficial effect: because different annex head is with after sleeve is connected, realize the indexing of annex by the revolution of sleeve, and the locking of its calibration process middle sleeve all is to be finished by same set of end-toothed disc with the location, and the motor-driven of employing single serve, the indexing process is safe and reliable, therefore, this ram type boring and milling head outer indexing accuracy high conformity, overcome that every kind of annex head all carries the error that a cover end-toothed disc causes in the traditional structure, thereby improve indexing accuracy and the integral rigidity of accessories mill-head, and be conducive to improve manufacturability in the whole manufacturing process, reduce manufacturing cost.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the E of Fig. 1 is to view.
1-ram among the figure, 2-sleeve, 3-lower tooth disk, the last fluted disc of 4-, 5-needle bearing one, 7-thrust housing, the 8-push rod, 9-spring, 10-needle bearing two, the 11-piston, 12-pinion, 13-gear wheel, 14-flow ring, C-oil-in, 15-annex tensioning mechanism, 16-accessory identification code-disc, 17-hydraulic quick coupler, the electric insert row of 18-.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
By Figure 1 and Figure 2, this has the ram type boring and milling head outer of independent built-in annex indexing mechanism, comprise ram 1, wherein, fluted disc 4 on the lower surface bolting of described ram 1, ram 1 built-in sleeve 2, be equipped with between the interior shaft shoulder of the shaft shoulder and ram 1 outside the top of sleeve 2 by being bolted to the thrust housing 7 on the ram 1, there are some groups of blind holes the lower surface of thrust housing 7, blind hole is built-in with spring 9 and push rod 8, the bottom of push rod 8 contacts with the shaft shoulder of sleeve 2, the upper surface of sleeve 2 is by bolting gear wheel 13, gear wheel 13 and pinion 12 engagements, have axial ring-shaped groove on the following wheel hub of gear wheel 13, ring-shaped groove inside is equipped with piston 11, and the lower surface of piston 11 contacts with thrust housing 7; Described pinion 12 is fixed on the reduction box, and reduction box is connected with servomotor, and pinion 12, reduction box and servomotor are installed in ram 1 inside; Outside the bottom of sleeve 2 on the shaft shoulder fixing can with the lower tooth disk 3 of last fluted disc 4 engagements.
Above-mentioned sleeve 2 is supported on the inwall of fluted disc 4 and thrust housing 7 by needle bearing 1 and needle bearing 2 10 or oil-containing Sliding bush; On the described gear wheel 13 oil-in C is arranged, and gear wheel 13 there is the oil circuit that communicates with sleeve 2, in addition, has some groups to be used for the holes system that flow media passes through on the sleeve 2; Described sleeve 2 liner flow rings 14, the bearing of the inwall fixed support main shaft of flow ring 14 is processed with spiral groove at the cylindrical corresponding with the running in bearings position, be used for flowing thermostatical oil or water, the temperature rise of control main shaft bearing, stabilize spindle temperature.In addition, also have some ring-shaped grooves and seal groove on flow ring 13 cylindricals, the effect of ring-shaped groove is any dispensing that the various Oil, Water, Gas road on the sleeve is realized circumferencial direction, for example, can realize that by the flow ring 4 the tunnel clamp by 1 road annex clamping oil circuit that gear wheel 13 enters in the sleeve 2, seal groove is in order to prevent the leakage of various Oil, Water, Gas media; There are some groups to be used for the hole system that flow media passes through on the described sleeve 2, the medium that flows in the hole comprises oil, gas, water etc., except the clamping that is used for accessories mill-head, unclamping, the inside and outside clear cutter cold, the annex main shaft of cutter that also is used for the annex main shaft is blown, the functions such as automatic loose cutter of annex main shaft.
The unclamping or clamp that it moves axially realization by hydraulic control of sleeve 2 just makes the lower tooth disk 3 that is installed on the sleeve 2 and is installed in last fluted disc 4 on the ram and throws off or mesh.Concrete course of action is as follows: during clamping, the oilhole C oil-feed on gear wheel 13 tops, the D chamber is full of pressure oil, the pressure of pressure oil acts on the A face of gear wheel 13 and the B face of piston 11, because the bottom of piston 11 contacts with thrust housing 7, thrust housing 7 is fixed on again on the ram 1, therefore, under the effect of pressure oil, will promote gear wheel 13 and move upward, drive sleeve 2 and lower tooth disk 3 and move upward, be meshed with lower tooth disk 3 up to last fluted disc 4, so just finished the clamping action of sleeve 2, after clamping put in place, sense switch provided signal.When unclamping, just in time opposite with the action of clamping process, hydraulic fluid port C oil return, the D cavity pressure reduces, sleeve 2, lower tooth disk 3, and gear wheel 13 under the effect of gravity and spring 9 elastic force, move downward, contact the unclamping to move and finish of sleeve 2 this moment with the B face of piston 11 up to the A of gear wheel 13 face.
It is by being installed in the independently servo-operated mechanism realization of ram 1 inside that sleeve 2 rotatablely moves, the prerequisite of sleeve 2 rotations is that sleeve 2 is in releasing orientation, servomotor is behind high class gear case reduction of speed, drive installation is meshed with gear wheel 13 on being installed in sleeve 2 at the pinion 12 on the reduction box, drives sleeve 2 rotations, after sleeve 2 rotation calibration put in place, by above-mentioned moving axially sleeve 2 is clamped, in like manner, before the sleeve rotation, cover 2 need be unclamped.The action relationships of calibration process is as follows: at first be that sleeve 2 unclamps, after switch detects and puts in place, carry out sleeve 2 rotations, after corner put in place, sleeve 2 clamped, and calibration is finished.Because annex tensioning mechanism 15 and accessory identification code-disc 16 also are housed on the lower surface of sleeve 2, like this in the process of annex calibration, annex is tightened up all the time on sleeve 2, safe, be that dish spring, hydraulic pressure are strained simultaneously during tension, be hydraulic unlock when unclamping, so no matter which kind of state sleeve 2 is in, the accessories mill-head that is attached thereto all should be in the state that is tightened up.
In addition, sleeve and the end face of accessories mill-head all have one group of corresponding hydraulic quick coupler 17 mutually, is formed by male contact and famale connector, and when annex unclamps, male contact and famale connector disengagement, general's oil circuit, gas circuit, the water route disconnection separately respectively of male contact and famale connector; During tension, male contact is communicated with famale connector, and various oil circuits, gas circuit, water route are in opening state at this moment.Because a cover ram boring and milling head can be furnished with the different accessories mill-head of multiple function, therefore, at the end face of sleeve the accessory identification code-disc of being made up of near switch several 16 is installed, be used for the different annex of identification, also have electric insert row 18 simultaneously, be used for the butt joint of numerical control milling head, as shown in Figure 2.
After adopting above-mentioned technical scheme, different annex heads is with after sleeve is connected, realize the indexing of annex by the revolution of sleeve, and the locking of its calibration process middle sleeve all is to be finished by same set of end-toothed disc with the location, and the motor-driven of employing single serve, the indexing process is safe and reliable, therefore, this ram type boring and milling head outer indexing accuracy high conformity, overcome that every kind of annex head all carries the error that a cover end-toothed disc causes in the traditional structure, thereby improve indexing accuracy and the integral rigidity of accessories mill-head, and be conducive to improve the manufacturability in the whole manufacturing process, reduce manufacturing cost.
Claims (5)
1. one kind has the independently ram type boring and milling head outer of built-in annex indexing mechanism, comprise ram (1), it is characterized in that: the fixing fluted disc (4) of going up in the lower surface of described ram (1), the built-in sleeve of ram (1) (2), be equipped with the thrust housing (7) that is fixed on the ram (1) outside the top of sleeve (2) between the interior shaft shoulder of the shaft shoulder and ram (1), there are some groups of blind holes the lower surface of thrust housing (7), blind hole is built-in with spring (9) and push rod (8), the bottom of push rod (8) contacts with the shaft shoulder of sleeve (2), the upper surface of sleeve (2) is gear wheel (13) fixedly, gear wheel (13) and pinion (12) engagement, have axial ring-shaped groove on the wheel hub of gear wheel (13), ring-shaped groove is built-in with piston (11), and the lower surface of piston (11) contacts with thrust housing (7); Described pinion (12) is fixed on the reduction box, and reduction box is connected with servomotor, and pinion (12), reduction box and servomotor are installed in ram (1) inside; Outside the bottom of described sleeve (2) on the shaft shoulder fixing can with the lower tooth disk (3) of last fluted disc (4) engagement.
2. according to the described ram type boring and milling head outer with independent built-in annex indexing mechanism of right 1, it is characterized in that: described sleeve (2) is supported on the inwall of fluted disc (4) and thrust housing (7) by needle bearing one (5) and needle bearing two (10) or oil-containing Sliding bush.
3. according to right 1 described ram type boring and milling head outer with independent built-in annex indexing mechanism, it is characterized in that: oil-in (C) is arranged on the described gear wheel (13), and with sleeve (2) oil circuit that communicates is arranged, in addition, have some groups to be used for the hole system that flow media passes through on the sleeve (2).。
4. according to right 1 described ram type boring and milling head outer with independent built-in annex indexing mechanism, it is characterized in that: described sleeve (2) liner flow ring (14), the bearing of the inwall fixed support main shaft of flow ring (14), the spiral groove of useful flow thermostatical oil or water on the corresponding outer wall of flow ring (14) endoporus running in bearings; Also be processed with the leakage sealed groove that some roads are realized the ring-shaped groove that circumferencial direction is provided and delivered arbitrarily with the various Oil, Water, Gas road on the sleeve (2) and prevented various Oil, Water, Gas media on the cylindrical of flow ring (14).
5. according to right 1 described ram type boring and milling head outer with independent built-in annex indexing mechanism, it is characterized in that: 4 cover annex tensioning mechanism (15) and 1 group of accessory identification code-disc (16) also are equipped with in the lower surface of described sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110431941 CN102407458B (en) | 2011-12-21 | 2011-12-21 | Ram type boring and milling head with independent built-in accessory indexing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110431941 CN102407458B (en) | 2011-12-21 | 2011-12-21 | Ram type boring and milling head with independent built-in accessory indexing mechanism |
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| Publication Number | Publication Date |
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| CN102407458A CN102407458A (en) | 2012-04-11 |
| CN102407458B true CN102407458B (en) | 2013-08-14 |
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| CN 201110431941 Active CN102407458B (en) | 2011-12-21 | 2011-12-21 | Ram type boring and milling head with independent built-in accessory indexing mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909560A (en) * | 2012-10-30 | 2013-02-06 | 新乡日升数控轴承装备股份有限公司 | High-strength boring and milling spindle mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633257B (en) * | 2020-06-30 | 2022-10-14 | 威海奥威尔精密部件有限公司 | Vertical vector automatic indexing milling head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2258241B1 (en) * | 1974-01-22 | 1976-11-26 | Deflandre Rene | |
| DE4102937A1 (en) * | 1991-01-31 | 1992-08-06 | Zettl Gmbh Cnc Praezisions Und | DRIVE TRANSFER TOOL MOUNTING UNITS |
| CN201128068Y (en) * | 2007-07-30 | 2008-10-08 | 石家庄三环阀门股份有限公司 | Ram-type boring and milling head |
| CN201189607Y (en) * | 2008-05-26 | 2009-02-04 | 宋保通 | Floor milling and boring heads of milling shaft built-in boring bar |
| CN202344314U (en) * | 2011-12-22 | 2012-07-25 | 齐齐哈尔二机床(集团)有限责任公司 | Ram type boring and milling head with dependent built-in accessory indexing mechanism |
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2011
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909560A (en) * | 2012-10-30 | 2013-02-06 | 新乡日升数控轴承装备股份有限公司 | High-strength boring and milling spindle mechanism |
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