CN202498365U - Static pressure center frame of horizontal heavy lathe - Google Patents
Static pressure center frame of horizontal heavy lathe Download PDFInfo
- Publication number
- CN202498365U CN202498365U CN2011205341644U CN201120534164U CN202498365U CN 202498365 U CN202498365 U CN 202498365U CN 2011205341644 U CN2011205341644 U CN 2011205341644U CN 201120534164 U CN201120534164 U CN 201120534164U CN 202498365 U CN202498365 U CN 202498365U
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- static pressure
- centre frame
- workpiece
- sleeve
- upper body
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Abstract
The utility model discloses a static pressure center frame of a horizontal heavy lathe. The static pressure center frame comprises an upper body of the center frame and a lower body of the center frame, wherein the upper body of the center frame and the lower body of the center frame are mutually connected, the upper body of the center frame is provided with a three-point support structure for supporting an axle journal of a workpiece, the three-point support structure comprises a main support and two side supports, the main support is arranged along an outer circumferential direction of the workepiece, the side supports are respectively arranged at both sides of the main support, the main support comprises a static pressure pad which contacts with the axle journal of the workpiece and a jacking mechanism which is connected with the static pressure pad, the main support is connected with a static pressure system which provides hydraulic oil, the static pressure pad is provided with an oil cavity which communicates with the static pressure system, the two side supports comprise side support pads which contact with the axle journal of the workpiece and side pad seats which are connected with the side support pads, the side supports are connected with a hydraulic system which provides hydraulic oil, and the side support pads are provided with oil cavities which communicate with the hydraulic system. By utilizing the technical scheme provided by the utility model, the workpiece does not directly contact with each support pads, so damage to the axle journal of the workpiece is avoided.
Description
Technical field
The utility model relates to horizontal heavy-duty engine lathe, and specifically, the utility model relates to a kind of horizontal heavy-duty engine lathe static pressure centre frame.
Background technology
In the use of horizontal heavy-duty engine lathe, when processing weight surpasses 20 tons heavy workpiece,, can cause spindle deformation in lathe headstock, the tailstock because load is bigger; Simultaneously, also can conduct oneself with dignity and cause the workpiece deflection deformation, and the existence meeting of these distortion has a negative impact to machining accuracy because of workpiece.
The problems referred to above adopt centre frame to support usually and solve, and the relative workpiece axle journal of traditional centre frame back-up block is the sliding friction that contact is arranged, so also be difficult to avoid the damage to the workpiece axle journal.
The utility model content
The utility model technical problem to be solved provides a kind of horizontal heavy-duty engine lathe static pressure centre frame that can not cause damage to the workpiece axle journal.
In order to solve the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of horizontal heavy-duty engine lathe static pressure centre frame; The static pressure centre frame comprises centre frame upper body and the centre frame lower body that is connected, and the end face of centre frame upper body is the semicircle cambered surface, on said centre frame upper body, is provided with the three-point support structure of supporting workpiece axle journal; This three-point support structure comprises main the support and two sides supports that is provided with along the excircle direction of workpiece; Two sides support and are located at the main both sides of supporting respectively, and main the support comprises and the static pressure tile fragment and the lifting body that is connected with the static pressure tile fragment of the contact of workpiece axle journal that main support and connection have the static-pressure system that hydraulic oil is provided; The static pressure tile fragment is provided with the oil pocket that is communicated with static-pressure system; Side supports and comprises the side watt seat that supports tile fragment and be connected with side support tile fragment with the side of workpiece axle journal contact, and the side support and connection have the hydraulic system that hydraulic oil is provided, and side supports tile fragment and is provided with the oil pocket that is communicated with hydraulic system.
Said lifting body comprises the oil cylinder that is communicated with said hydraulic system that is located on the said centre frame lower body; On said centre frame upper body, be provided with vertical hole, in this hole, be provided with a sleeve, the end of the piston rod of oil cylinder inserts in the hole and is connected with sleeve; The end of sleeve is stretched out the hole and is externally connected with swing watt seat; Swing watt seat is connected with said static pressure tile fragment, is provided with off-load static pressure chamber at the end face of sleeve, and said static-pressure system is communicated with off-load static pressure chamber through being located at the oil duct of swinging on watt seat.
On said centre frame upper body, be provided with manual fine-tuning mechanism; This manual fine-tuning mechanism comprise cross-brace the hand axle on the centre frame upper body be enclosed within the gear nut on the said piston rod; Gear nut is below said sleeve; For being threaded, be connected through gear drive between hand axle and the gear nut between gear nut and the piston rod, this gear drive comprises and is located at drive bevel gear, the driven wheel of differential that cooperates with this drive bevel gear on hand and vertically is supported on the spool gear on the centre frame upper body; Driven wheel of differential and spool gear are socketed on the same back shaft, and spool gear matches with gear nut.
Between said sleeve and said piston rod, be provided with copper packing.
The bottom surface of said swing watt seat is a cambered surface, is connected with fork between said swing watt seat and the said sleeve, and an end of fork is fastenedly connected with a swing watt seat, and the other end and sleeve are rotationally connected.
The utility model adopts technique scheme, and through between static pressure tile fragment and workpiece axle journal, forming the static pressure oil film, it is not directly to contact that workpiece supports tile fragment with each, can not produce sliding friction, thereby avoid the workpiece axle journal is caused damage.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Mark among the above-mentioned figure is: 1, spool gear; 2, driven wheel of differential; 3, hand axle; 4, drive bevel gear; 5, centre frame upper body; 6, static pressure tile fragment; 7, swing watt seat; 8, sleeve; 9, copper packing; 10, gear nut; 11, piston rod; 12, centre frame lower body; 13, static pressure oil pipe; 14, hydraulic oil pipe; 15, side supports.
The specific embodiment
As shown in Figure 1, a kind of horizontal heavy-duty engine lathe static pressure centre frame of the utility model, static pressure centre frame comprise the centre frame upper body that is connected 5 and centre frame lower body 12, and 5 of centre frame upper bodies are above centre frame lower body 12, and the end face of centre frame upper body 5 is the semicircle cambered surface.This static pressure centre frame is for solving the damage of traditional centre frame back-up block to the workpiece axle journal; Principle according to hydrodynamic journal liquid polymers; Centre frame is supported tile fragment be designed to contact with the direct of axle journal, thoroughly to avoid damage axle journal with static pressure oil film isolation tile fragment with the contact form of workpiece spindle collar.This static pressure centre frame is made up of hydraulic system, manual fine-tuning mechanism, static-pressure system, pumping station system, electrical system, the realization and the control of functions such as the lifting of completion workpiece, the formation of adjustment static pressure oil film.
Concrete; On centre frame upper body 5, be provided with the three-point support structure of supporting workpiece axle journal; This three-point support structure comprises main the support and two sides supports 15 that is provided with along the excircle direction of workpiece; The main arc bottom that is located at centre frame upper body 5 end faces of supporting, two sides support 15 and are located at the main both sides of supporting respectively.Intermediate supports is main the support, mainly bears workpiece load and adjusts workpiece Up Highway UHW precision, and it is supplemental support that front and back two cover sides support 15, mainly bears workpiece cutting force and adjusts workpiece side bus precision.The main support comprises and the static pressure tile fragment 6 and the lifting body that is connected with static pressure tile fragment 6 of the contact of workpiece axle journal that the promising static pressure tile fragment 6 of main support and connection provides the static-pressure system of hydraulic oil, and static pressure tile fragment 6 is provided with the oil pocket that is communicated with static-pressure system.Side supports 15 and comprises the side watt seat that supports tile fragment and be connected with side support tile fragment with the side of workpiece axle journal contact, and side supports 15 and is connected with the hydraulic system that hydraulic oil is provided, and side supports tile fragment and is provided with the oil pocket that is communicated with hydraulic system.Hydraulic system has two functions, and the one, the lifting action of the piston rod 11 of realization and control oil cylinder, two provide two sides supports the lubricating oil between tile fragments and workpiece contact-making surface.
Above-mentioned lifting body comprises the oil cylinder that is located on the centre frame lower body 12; Oil cylinder is communicated with hydraulic system through hydraulic oil pipe 14; On centre frame upper body 5, be provided with vertical hole; In this hole, be provided with a sleeve 8, the end of the piston rod 11 of oil cylinder inserts in the hole and is connected with sleeve 8, between sleeve 8 and piston rod 11, is provided with copper packing 9.The end of sleeve 8 is stretched out the hole and is externally connected with a swing watt seat 7, and swing watt seat 7 is fastenedly connected with static pressure tile fragment 6, is provided with off-load static pressure chamber at the end face of sleeve 8, and static-pressure system is communicated with off-load static pressure chamber through the oil duct that is located on the swing watt seat 7.Static-pressure system has two functions; The one, be communicated with the off-load oil film is provided with swing watt seat 7 through static pressure oil pipe 13; Form static pressure off-load oil circuit, the 2nd, being communicated with static pressure tile fragment 6 through another root static pressure oil pipe 13 provides main support static pressure oil film, formation static pressure oil-feed oil circuit.
On centre frame upper body 5, also be provided with manual fine-tuning mechanism, adopt special high-accuracy hand supercharging oil cylinder crawl functional trimming master supporting elevation, crawl amount trimmed 0.02～0.04/ time.This manual fine-tuning mechanism comprise cross-brace the hand axle on the centre frame upper body 53 be enclosed within the gear nut 10 on the piston rod 11; Gear nut 10 for being threaded, is connected through gear drive between hand axle 3 and the gear nut 10 between gear nut 10 and the piston rod 11 below sleeve 8; This gear drive comprises and is located at drive bevel gear 4, the driven wheel of differential 2 that cooperates with this drive bevel gear 4 on the hand axle 3 and vertically is supported on the spool gear 1 on the centre frame upper body 5; Driven wheel of differential 2 is socketed on the same back shaft with spool gear 1, same through-drive, and spool gear 1 matches with gear nut 10; Rotate hand axle 3; Power is passed to spool gear 1 through bevel-gear sett, and spool gear 1 rotates, and driven wheel nut 10 moves up and down along piston rod 11.
The bottom surface of swing watt seat 7 is a cambered surface, is connected with a fork between swing watt seat 7 and the sleeve 8, and an end of fork is fastenedly connected with swing watt seat 7, and the other end and sleeve 8 are rotationally connected, and realizes that swing watt seat 7 is connected with the swing of sleeve 8.Static pressure tile fragment 6, swing watt seat 7 etc. are set up and are adopted the flexible structure design, can fit from kiss with the servo-actuated of frame mouth workpiece axle journal cambered surface, can guarantee that static pressure film thickness is even.
This static pressure centre frame operating procedure is:
Pumping plant starts the back:
The first step; Hydraulic oil gets into oil cylinder through hydraulic oil pipe 14; Promote piston rod 11 and then drive copper packing 9, sleeve 8, swing watt seat 7, static pressure tile fragment 6 jacking workpiece axle journals; Open the static pressure off-load oil circuit of static-pressure system simultaneously, static-pressure system makes it to produce oil film with the off-load static pressure chamber that hydraulic oil injects between sleeve 8, the off-load swing watt seat 7, and utilizes high pressure manual oil pump crawl; The flexible fine setting of side tool post workpiece centre is vertical, transverse displacement amount and machine tool chief axis center registration be to requiring; Manual work is shaken hand 3, through bevel gear pair, spool gear 1 gear nut 10 rotations is axially descended behind the bearing that pushes against gear nut 10 lower ends along piston rod 11 then; Oil cylinder, the off-load of static pressure off-load oil circuit, this moment workpiece, static pressure tile fragment 6 position and load fully by sleeve 8, gear nut 10, bearing locks and carry.
Second step; Open the static pressure oil-feed oil circuit of static-pressure system; Hydraulic oil gets into the oil pocket of static pressure tile fragment 6 through static pressure oil pipe 13; Between workpiece axle journal and static pressure tile fragment 6 cambered surfaces, form 0.02～0.06 pressure oil film and make the workpiece buoyance lift, this moment, the workpiece axle journal disengaged with static pressure tile fragment 6 cambered surfaces fully, thereby had avoided contacting the damage that sliding friction causes journal surface because of direct.As adopt two static pressure centre frames to lift the workpiece mode; The workpiece rotating torques is by the universal transmission of machine tool chief axis; The rotating accuracy of workpiece is guaranteed by workpiece axle journal and static pressure oil film precision fully and has nothing to do with the machine tool chief axis precision, accurately machined heavy workpiece precision is further improved.
Be independent of the pumping plant pipe-line system of machine tool system: mainly constitute, to the hydraulic system fuel feeding by fuel tank, high-pressure oil pump, oil filter, all kinds of control valve, oily temperature control case, pipe joint and oil pipe etc.Also being provided with oil filter in the oil circuit stops up; Safety guards such as pressure alarming decrease are to guarantee safe operation.
Be independent of the electrical system of machine tool system: electric control cabinet is installed on the pumping plant, and the action button erect-position has been realized the various controls to the operation of static pressure centre frame on switch board.This static pressure centre frame characteristics are:
1. pumping plant and support body are separated from each other separate configurations, can easily pumping plant be moved to the centre frame appropriate positions near at the diverse location of lathe according to centre frame, and pipeline between the two connects the employing hydraulic quick coupler, and is convenient, fast, laborsaving.
2. stability and reliability that good oil temperature adjusting and oil strain function have improved system's Hydraulic Elements service life and system works.
3. upper and lower support body adopts cast iron or cast steel material, can guarantee rigidity and the intensity of support body under big loaded-up condition.
4. static pressure tile fragment 6 is selected the lead base Babbitt metal for use, and bearing capacity is big, and anti-wear performance is good.
5. static pressure watt, swing watt seat 7 etc. are set up and are adopted the flexible structure design, can fit from kiss with the servo-actuated of frame mouth workpiece axle journal cambered surface, can guarantee that static pressure film thickness is even.
6. be provided with fine setting of workpiece vertical plane crawl and horizontal plane off-load oil film fine adjustment function.
7. be provided with the main location locking mechanism that supports, locking position and load after being used for workpiece and adjusting to the right place are born.
8. system is provided with the flashing light audible alarm, can in time remind operating personnel to take measures such as shutdown inspection, to avoid damaging workpiece.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the method design of the utility model and the improvement of the various unsubstantialities that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all within the protection domain of the utility model.
Claims (5)
1. horizontal heavy-duty engine lathe static pressure centre frame; The static pressure centre frame comprises centre frame upper body and the centre frame lower body that is connected; The end face of centre frame upper body is the semicircle cambered surface; It is characterized in that: on said centre frame upper body, be provided with the three-point support structure of supporting workpiece axle journal, this three-point support structure comprises main the support and two sides supports that is provided with along the excircle direction of workpiece, and two sides support and are located at the main both sides of supporting respectively; The main static pressure tile fragment and the lifting body that is connected with the static pressure tile fragment that comprises with the contact of workpiece axle journal that support; Main support and connection have the static-pressure system that hydraulic oil is provided, and the static pressure tile fragment is provided with the oil pocket that is communicated with static-pressure system, and side supports and comprises the side watt seat that supports tile fragment and be connected with side support tile fragment with the side of workpiece axle journal contact; The side support and connection have the hydraulic system that hydraulic oil is provided, and side supports tile fragment and is provided with the oil pocket that is communicated with hydraulic system.
2. horizontal heavy-duty engine lathe static pressure centre frame according to claim 1; It is characterized in that: said lifting body comprises the oil cylinder that is communicated with said hydraulic system that is located on the said centre frame lower body; On said centre frame upper body, be provided with vertical hole, in this hole, be provided with a sleeve, the end of the piston rod of oil cylinder inserts in the hole and is connected with sleeve; The end of sleeve is stretched out the hole and is externally connected with swing watt seat; Swing watt seat is connected with said static pressure tile fragment, is provided with off-load static pressure chamber at the end face of sleeve, and said static-pressure system is communicated with off-load static pressure chamber through being located at the oil duct of swinging on watt seat.
3. horizontal heavy-duty engine lathe static pressure centre frame according to claim 2; It is characterized in that: on said centre frame upper body, be provided with manual fine-tuning mechanism; This manual fine-tuning mechanism comprise cross-brace the hand axle on the centre frame upper body be enclosed within the gear nut on the said piston rod; Gear nut is below said sleeve; For being threaded, be connected through gear drive between hand axle and the gear nut between gear nut and the piston rod, this gear drive comprises and is located at drive bevel gear, the driven wheel of differential that cooperates with this drive bevel gear on hand and vertically is supported on the spool gear on the centre frame upper body; Driven wheel of differential and spool gear are socketed on the same back shaft, and spool gear matches with gear nut.
4. horizontal heavy-duty engine lathe static pressure centre frame according to claim 3 is characterized in that: between said sleeve and said piston rod, be provided with copper packing.
5. horizontal heavy-duty engine lathe static pressure centre frame according to claim 4; It is characterized in that: the bottom surface of said swing watt seat is a cambered surface; Be connected with fork between said swing watt seat and the said sleeve, an end of fork is fastenedly connected with a swing watt seat, and the other end and sleeve are rotationally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205341644U CN202498365U (en) | 2011-12-19 | 2011-12-19 | Static pressure center frame of horizontal heavy lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205341644U CN202498365U (en) | 2011-12-19 | 2011-12-19 | Static pressure center frame of horizontal heavy lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202498365U true CN202498365U (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205341644U Expired - Fee Related CN202498365U (en) | 2011-12-19 | 2011-12-19 | Static pressure center frame of horizontal heavy lathe |
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| Country | Link |
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| CN (1) | CN202498365U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741947A (en) * | 2015-04-14 | 2015-07-01 | 安徽江淮汽车股份有限公司 | Clamping workbench for processing rotary inclined wedge |
| TWI500472B (en) * | 2013-07-16 | 2015-09-21 | Ind Tech Res Inst | An auto-centering apparatus of a steady rest |
| CN105500057A (en) * | 2015-11-27 | 2016-04-20 | 重庆明高机械制造有限公司 | Roller positioning fixture |
| CN107138969A (en) * | 2017-07-12 | 2017-09-08 | 湖北二电电气有限公司 | A kind of heavy brackets of sleeping carriage |
| CN108296805A (en) * | 2017-11-10 | 2018-07-20 | 浙江巨源动力装备有限公司 | A kind of static-pressure central frame |
| CN111113073A (en) * | 2019-12-30 | 2020-05-08 | 齐齐哈尔雷昂重工机械制造有限责任公司 | Processing method of sleeping car center frame |
-
2011
- 2011-12-19 CN CN2011205341644U patent/CN202498365U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI500472B (en) * | 2013-07-16 | 2015-09-21 | Ind Tech Res Inst | An auto-centering apparatus of a steady rest |
| US9144868B2 (en) | 2013-07-16 | 2015-09-29 | Industrial Technology Research Institute | Auto-centering apparatus of a steady rest |
| CN104741947A (en) * | 2015-04-14 | 2015-07-01 | 安徽江淮汽车股份有限公司 | Clamping workbench for processing rotary inclined wedge |
| CN105500057A (en) * | 2015-11-27 | 2016-04-20 | 重庆明高机械制造有限公司 | Roller positioning fixture |
| CN107138969A (en) * | 2017-07-12 | 2017-09-08 | 湖北二电电气有限公司 | A kind of heavy brackets of sleeping carriage |
| CN108296805A (en) * | 2017-11-10 | 2018-07-20 | 浙江巨源动力装备有限公司 | A kind of static-pressure central frame |
| CN111113073A (en) * | 2019-12-30 | 2020-05-08 | 齐齐哈尔雷昂重工机械制造有限责任公司 | Processing method of sleeping car center frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20121219 |