CN202462107U - Heat balance system of machine tool - Google Patents
Heat balance system of machine tool Download PDFInfo
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- CN202462107U CN202462107U CN 201120553401 CN201120553401U CN202462107U CN 202462107 U CN202462107 U CN 202462107U CN 201120553401 CN201120553401 CN 201120553401 CN 201120553401 U CN201120553401 U CN 201120553401U CN 202462107 U CN202462107 U CN 202462107U
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Abstract
The utility model discloses a heat balance system of a machine tool. An oil tank (12) is arranged in a lower space of a machine tool body (1), and communicated with a high-flow spray-head (13) through a pipeline; a nozzle of the high-flow spray-head (13) is over against a meshed part of a worm gear pair (3); an oil receiving dish (14) communicated with the oil tank (12) is arranged below the worm gear pair (3); cooling oil in an oil return tank (11) is filled in a first cavity of a cooling oil tank (15); the first cavity is connected with an oil inlet of an oil cooler (2); an oil outlet of the oil cooler (2) is communicated with a second cavity of the cooling oil tank (15); and the second cavity is connected with a spray nozzle (10) on a tool rest (7). Through the adoption of the heat balance system, the thermal deformation of a numerically controlled gear hobbing machine can be in a controllable state at any time, as long as the numerically controlled gear hobbing machine is started up, the direct processing can be conducted so as to carried out a CPX (Capability Index of Process) value test, the CPX value is increased greatly, and the heat balance system has the characteristics of simplicity, practicability, low cost, remarkable effect and the like.
Description
Technical field
The utility model belongs to the machine tool technology field, specifically, and particularly a kind of heat balance system of lathe.
Background technology
At present, the worm gear pair of chain digital control gear hobbing machine workbench all adopts the circulation oil sump lubricated.The thermal deformation of chain digital control gear hobbing machine is mainly derived from actuated element frictional heat and cold oil temperature rise, and the workbench heating is mainly derived from the worm gear pair slippage and gives birth to heat, the living heat of bearing movable and high speed rotary worm screw stirring lubricating oil and produce a large amount of heat.Chain digital control gear hobbing machine belongs to efficient lathe, and rotating speed of table is higher, and heat is given birth in the worm gear pair slippage and worm screw stirring lubricating oil is given birth to hot particularly evident.Heat that the slippage of workbench worm gear pair produces and worm screw stir lubricating oil and heat that the heat that produces actuated element in big column and the knife rest produces.Because the heat of circulation oil sump can not be taken away rapidly; And the deep fat that the circulation oil sump returns the lathe bed lubricating oil bath does not disperse to reflux, and the thermal balance effect is relatively poor, wants whole chain digital control gear hobbing machine and reaches thermal balance rapidly; Prior art adopts the oil cooling machine that cold oil and lubricating oil are carried out the equality of temperature adjusting; Though certain effect is arranged, not obvious, chain digital control gear hobbing machine still has tangible thermal deformation.Chain digital control gear hobbing machine must be through after a while (approximately needing about 1 hour) reach thermal balance after, just machinable tooth base carries out process capability index CPK pH-value determination pH, greatly reduces the operating efficiency of chain digital control gear hobbing machine thus.
The utility model content
The utility model technical problem to be solved is to provide a kind of machine tool thermal balance sysmte that can make the chain digital control gear hobbing machine thermal deformation be in controllable state at any time.
The technical scheme of the utility model is following: a kind of machine tool thermal balance sysmte, comprise lathe bed (1), cooling fuel tank (15) and oil cooling machine (2), and on the upper surface of lathe bed (1), be provided with oil-recovery tank (11); And lathe bed (1) upper surface is connected with workbench (4) through screw; Be provided with worm gear pair (3) in this workbench (4), be provided with post (5) on the right side of said workbench (4), the left side is provided with big column (6); Knife rest (7) is housed on said big column (6); This knife rest (7) is gone up nozzle (10) is installed, and its key is: the lower space of said lathe bed (1) is provided with oil sump (12), and this oil sump (12) is communicated with big flow shower nozzle (13) through lubricating oil pipeline; First oil pump (23) is housed on this lubricating oil pipeline; Said big flow shower nozzle (13) is installed on the housing of workbench (4), and the spout of this big flow shower nozzle (13) stretches in the workbench (4), and over against the engagement place of worm gear pair (3); Be provided with oil drain pan (14) in the below of said worm gear pair (3), this oil drain pan (14) is connected with oil sump (12); The inside of said cooling fuel tank (15) has first chamber and second chamber; Cold oil in the oil-recovery tank (11) is accepted by first chamber of cooling fuel tank (15); This first chamber is connected through first oil cooling service pipe behind second oil pump; Be connected with the oil-in of oil cooling machine (2); The oil-out of oil cooling machine (2) is communicated with second chamber that cools off fuel tank (15) through second oil cooling service pipe, and this second chamber is connected through the 3rd oil cooling service pipe behind the 3rd oil pump, is connected with nozzle (10) on the knife rest (7); First temperature sensor (16) is housed in first chamber of said cooling fuel tank (15); Second temperature sensor (17) is installed in the oil sump (12), and said first temperature sensor (16) and second temperature sensor (17) all are electrically connected with oil cooling machine (2) through lead.
Stir lubricating oil and produce a large amount of heat for fear of the high speed rotary worm screw, simultaneously heat is given birth in the worm gear pair slippage and take away rapidly, lubricated to change big flow shower into lubricated by traditional oil sump with the lubricating system of workbench worm gear pair for the utility model.The cavity of resorption of lathe bed is as lubricating oil sump, and the lubricating oil in this oil sump flows to big flow shower nozzle through lubricating oil pipeline under the effect of first oil pump, carries out the brute force spray by big flow shower nozzle facing to the engagement place of workbench worm gear pair; Simultaneously; The circulating lubricating oil export of other element (bearing in the workbench etc.) is arranged on the top of worm gear pair; The lubricating oil that this outlet is flowed out is also to the shower simultaneously of worm gear pair engagement place; Lubricating oil behind all sprays flows to the oil drain pan of worm gear pair below, disperses to flow back to rapidly the lathe bed oil sump by oil drain pan again.
The cold oil of nozzle ejection is got back to first chamber of cooling fuel tank through the oil-recovery tank of lathe bed upper surface; Pump in the oil cooling machine by second oil pump again and cool off; Cooled cold oil is got back to second chamber of cooling fuel tank, under the effect of the 3rd oil pump, flows to nozzle, accomplishes liquid circulation.
Generally speaking, the temperature of cold oil is far above the temperature of lubricating oil.First temperature sensor in the cooling fuel tank passes to the oil cooling machine with cold oil temperature information; Second temperature sensor in the lathe bed oil sump also passes to the oil cooling machine with lubricating oil temperature information, and the oil cooling machine adopts the equality of temperature regulative mode to handle as benchmark to cold oil lubricating oil temperature.The operation principle of oil cooling machine equality of temperature regulative mode is: as " T profit (lubricating oil temperature)+T establish (design temperature) ">during 1 ° of C, the oil cooling machine starts; < during 1 ° of C, the oil cooling machine stops when " T profit+T establishes ".The value of " T establishes " is crucial, with the control that directly influences the lathe bed upper and lower temperature difference, thereby causes the lathe bed thermal deformation.Too small when " T establishes " value, surface temperature is crossed when being lower than surface temperature on the lathe bed, shrink above, and following surface expansion, thus cause large and small column to be toppled over toward the centre, make M value (gear common normal value) data reduce gradually, otherwise the M Value Data is increased gradually.As long as " T establishes " value is reasonable, just can obtain preferable thermal balance effect.The thermal deformation of chain digital control gear hobbing machine can not be eliminated, but can change thermal deformation trend through adjustment " T establishes ", makes the chain digital control gear hobbing machine thermal deformation be in controllable state at any time.Every kind of chain digital control gear hobbing machine is after " T establishes " value is fixed, and start can directly be processed and carried out CPK pH-value determination pH (" T establishes "=1 ° C generally speaking), improves the operating efficiency of chain digital control gear hobbing machine thus greatly.
Said oil sump (12) is made up of preceding oil groove (12a), back oil groove (12b) and side oil groove (12c), and preceding oil groove (12a) parallels with back oil groove (12b), and both right-hand members are connected through side oil groove (12c).Processing and fabricating is easy on the one hand for above structure, can increase the flow process of lubricating oil in oil sump on the other hand, helps lubricating oil heat radiation cooling.
On said oil drain pan (14), be connected to five oil return pipes (18,19,20,21,22); First oil return pipe (18) communicates with the left part of preceding oil groove (12a); Second oil return pipe (19) communicates with the middle part of preceding oil groove (12a); The 3rd oil return pipe (20) communicates with the right part of preceding oil groove (12a), and the 4th oil return pipe (21) communicates with the right part of back oil groove (12b), and the 5th oil return pipe (22) communicates with the middle part of back oil groove (12b).Lubricating oil behind the worm gear pair spray is disperseed to get back to rapidly in the lathe bed oil sump through five oil return pipes, help lubricating oil temperature and in lathe bed, reach thermal balance rapidly.
The internal diameter of said first oil return pipe (18) is maximum, and the internal diameter of all the other oil return pipes (19,20,21,22) all internal diameter than first oil return pipe (18) is little.The distance of flow of lubricating oil the past oil groove left part oil groove left part to the back is the longest; First oil return pipe that communicates with preceding oil groove left part adopts bassoon to reflux; All the other four oil return pipes adopt tubule to reflux; Lubricating oil as much as possible is flowed along maximum flow process in oil sump, further improved the cooling counterbalance effect of lubricating oil.
For simplified structure, make things convenient for pipeline to connect; And help the cooling of lubricating oil in big column and the knife rest; The left part of said back oil groove (12b) is connected to first lubricating oil pipe; This first lubricating oil pipe is connected behind first oil pump (23); Be connected with the import of separating valve (24), first outlet of said separating valve (24) is connected with big flow shower nozzle (13) through second lubricating oil pipe, and second outlet of separating valve (24) is connected through the import of the 3rd lubricating oil pipe with big inner first oil leab of column (6) (8); The 3rd outlet of separating valve (24) is connected with the import of inner second oil leab of knife rest (7) (9) through the 4th lubricating oil pipe, and the outlet of said first oil leab (8) and second oil leab (9) all communicates with the left part of preceding oil groove (12a).
Beneficial effect: the utility model can make the chain digital control gear hobbing machine thermal deformation be in controllable state at any time; Start can directly be processed and carried out process capability index CPK pH-value determination pH; And the CPK value significantly improves; Have characteristics such as simple and practical, that cost is low, effect is remarkable, all applicable on various types of chain digital control gear hobbing machines.
Description of drawings
Fig. 1 is the structure diagram of chain digital control gear hobbing machine.
Fig. 2 is the layout sketch map of worm gear pair and big flow shower nozzle in the utility model.
Fig. 3 is the circulating oil path figure of lubricating oil and cold oil in the utility model.
Fig. 4 is the structural representation of oil sump in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Like Fig. 1, shown in Figure 2, chain digital control gear hobbing machine is made up of several major parts such as lathe bed 1, workbench 4, post 5 and big columns 6.Wherein big column 6 is installed in the left part of lathe bed 1 upper end, on big column 6, the knife rest 7 that is used for the clamping cutter is installed, and on this knife rest 7 nozzle 10 is housed, and in processing, nozzle 10 spray cold oils are used to cool off cutter and workpiece.Right part in said lathe bed 1 upper end is installed post 5, and said workbench 4 is between big column 6 and post 5, and this workbench 4 is connected with lathe bed 1 upper surface through screw, and in the workbench 4 worm gear pair 3 is housed.More than each position component relation and annexation identical with prior art, do not do at this and to give unnecessary details.
As shown in Figure 3, on the upper surface of lathe bed 1, be provided with oil-recovery tank 11, be used to accept the cold oil after nozzle 10 sprays.The next door of lathe bed 1 is provided with cooling fuel tank 15; The inside of this cooling fuel tank 15 is divided into first chamber and second chamber; Cold oil in the oil-recovery tank 11 is accepted by first chamber of cooling fuel tank 15, and this first chamber is connected through first oil cooling service pipe behind second oil pump (not drawing among the figure), is connected with the oil-in of oil cooling machine 2; This oil cooling machine 2 is installed in the position of lathe bed 1 next door near its right-hand member; The oil-out of oil cooling machine 2 is communicated with second chamber that cools off fuel tank 15 through second oil cooling service pipe, and this second chamber is connected through the 3rd oil cooling service pipe behind the 3rd oil pump (not drawing among the figure), is connected with nozzle 10 on the knife rest 7.Cold oil in the oil-recovery tank 11 flows into first chamber of cooling fuel tank 15, and pumps into cooling in the oil cooling machine 2 through second oil pump, and cooled cold oil is got back to second chamber of cooling fuel tank 15, under the effect of the 3rd oil pump, flows to nozzle 10, accomplishes liquid circulation.(flow direction of cold oil is shown in Fig. 3 hollow core arrow).
Like Fig. 2, Fig. 3, shown in Figure 4; The lower space of lathe bed 1 is provided with oil sump 12; This oil sump 12 is made up of preceding oil groove 12a, back oil groove 12b and side oil groove 12c, and preceding oil groove 12a and back oil groove 12b parallel, and all offer along the length direction of lathe bed 1; The right-hand member of forward and backward oil groove 12a, 12b is connected through side oil groove 12c, and side oil groove 12c offers along the width of lathe bed 1.The left part (A point among Fig. 4) of said back oil groove 12b is connected to first lubricating oil pipe; This first lubricating oil pipe is connected behind first oil pump 23; Be connected with the import of separating valve 24; Second outlet of said separating valve 24 is connected through the import of the 3rd lubricating oil pipe and big column 6 inner first oil leabs 8 (among Fig. 3 shown in the chain-dotted line); The 3rd outlet of separating valve 24 is connected through the import of the 4th lubricating oil pipe and knife rest 7 inner second oil leabs 9 (among Fig. 3 shown in the chain-dotted line), and the outlet of said first oil leab 8 and second oil leab 9 all communicates with the left part (F point among Fig. 4) of preceding oil groove 12a.First outlet of said separating valve 24 is connected with big flow shower nozzle 13 through second lubricating oil pipe, and flow shower nozzle 13 is installed on the housing of workbench 4 greatly, and the spout of flow shower nozzle 13 stretches in the workbench 4 greatly, and over against the engagement place of worm gear pair 3.
Like Fig. 3, Fig. 4 and combine shown in Figure 2; Below worm gear pair 3, be provided with oil drain pan 14; The internal diameter that is connected to five oil return pipes, 18,19,20,21,22, the first oil return pipes 18 on this oil drain pan 14 is maximum, and the internal diameter of all the other four oil return pipes 19,20,21,22 equates.Said first oil return pipe 18 communicates with the left part (F point among Fig. 4) of preceding oil groove 12a; Second oil return pipe 19 communicates with the middle part (E point among Fig. 4) of preceding oil groove 12a; The 3rd oil return pipe 20 communicates with the right part (D point among Fig. 4) of preceding oil groove 12a; The 4th oil return pipe 21 communicates with the right part (C point among Fig. 4) of back oil groove 12b, and the 5th oil return pipe 22 communicates with the middle part (B point among Fig. 4) of back oil groove 12b.
As shown in Figure 3, first temperature sensor 16 is housed in first chamber of fuel tank 15, the C point place in the oil sump 12 is equipped with second temperature sensor 17, and said first temperature sensor 16 and second temperature sensor 17 all are electrically connected with oil cooling machine 2 through lead.First temperature sensor 16 in the fuel tank passes to oil cooling machine 2 with cold oil temperature information; Second temperature sensor 17 in the oil sump also passes to oil cooling machine 2 with lubricating oil temperature information, and the oil cooling machine adopts the equality of temperature regulative mode to handle as benchmark to cold oil lubricating oil temperature.The operation principle of oil cooling machine equality of temperature regulative mode is: as " T profit (lubricating oil temperature)+T establish (design temperature) ">during 1 ° of C, the oil cooling machine starts; < during 1 ° of C, the oil cooling machine stops when " T profit+T establishes ".As long as " T establishes " value is reasonable; Just can make lathe bed 1 obtain preferable thermal balance effect up and down; Make the chain digital control gear hobbing machine thermal deformation be in controllable state at any time; Start can directly be processed and carried out CPK pH-value determination pH (" T establishes "=1 ° C generally speaking) like this, improves the operating efficiency of chain digital control gear hobbing machine thus greatly.
Although more than combine accompanying drawing that the preferred embodiment of the utility model is described; But the utility model is not limited to the above-mentioned specific embodiment; The above-mentioned specific embodiment only is schematic rather than determinate; Those of ordinary skill in the art is under the enlightenment of the utility model; Under the prerequisite of the utility model aim and claim, can make multiple similar expression, connecting through a lubricating oil pipe like: lathe bed oil sump is connected with big flow shower nozzle behind first oil pump; Perhaps change the oil return pipe between oil drain pan and the lathe bed oil sump into two, three, four, the six roots of sensation ... Deng, such conversion all falls within the protection domain of the utility model.
Claims (5)
1. a machine tool thermal balance sysmte comprises lathe bed (1), cooling fuel tank (15) and oil cooling machine (2), on the upper surface of lathe bed (1), is provided with oil-recovery tank (11); And lathe bed (1) upper surface is connected with workbench (4) through screw; Be provided with worm gear pair (3) in this workbench (4), be provided with post (5) on the right side of said workbench (4), the left side is provided with big column (6); Knife rest (7) is housed on said big column (6); This knife rest (7) is gone up nozzle (10) is installed, and it is characterized in that: the lower space of said lathe bed (1) is provided with oil sump (12), and this oil sump (12) is communicated with big flow shower nozzle (13) through lubricating oil pipeline; First oil pump (23) is housed on this lubricating oil pipeline; Said big flow shower nozzle (13) is installed on the housing of workbench (4), and the spout of this big flow shower nozzle (13) stretches in the workbench (4), and over against the engagement place of worm gear pair (3); Be provided with oil drain pan (14) in the below of said worm gear pair (3), this oil drain pan (14) is connected with oil sump (12); The inside of said cooling fuel tank (15) has first chamber and second chamber; Cold oil in the oil-recovery tank (11) is accepted by first chamber of cooling fuel tank (15); This first chamber is connected through first oil cooling service pipe behind second oil pump; Be connected with the oil-in of oil cooling machine (2); The oil-out of oil cooling machine (2) is communicated with second chamber that cools off fuel tank (15) through second oil cooling service pipe, and this second chamber is connected through the 3rd oil cooling service pipe behind the 3rd oil pump, is connected with nozzle (10) on the knife rest (7); First temperature sensor (16) is housed in first chamber of said cooling fuel tank (15); Second temperature sensor (17) is installed in the oil sump (12), and said first temperature sensor (16) and second temperature sensor (17) all are electrically connected with oil cooling machine (2) through lead.
2. machine tool thermal balance sysmte according to claim 1; It is characterized in that: said oil sump (12) is made up of preceding oil groove (12a), back oil groove (12b) and side oil groove (12c); Preceding oil groove (12a) parallels with back oil groove (12b), and both right-hand members are connected through side oil groove (12c).
3. machine tool thermal balance sysmte according to claim 2; It is characterized in that: on said oil drain pan (14), be connected to five oil return pipes (18,19,20,21,22); First oil return pipe (18) communicates with the left part of preceding oil groove (12a); Second oil return pipe (19) communicates with the middle part of preceding oil groove (12a); The 3rd oil return pipe (20) communicates with the right part of preceding oil groove (12a), and the 4th oil return pipe (21) communicates with the right part of back oil groove (12b), and the 5th oil return pipe (22) communicates with the middle part of back oil groove (12b).
4. machine tool thermal balance sysmte according to claim 3 is characterized in that: the internal diameter of said first oil return pipe (18) is maximum, and the internal diameter of all the other oil return pipes (19,20,21,22) all internal diameter than first oil return pipe (18) is little.
5. according to claim 2 or 3 or 4 described machine tool thermal balance sysmtes; It is characterized in that: the left part of said back oil groove (12b) is connected to first lubricating oil pipe; This first lubricating oil pipe is connected behind first oil pump (23); Be connected with the import of separating valve (24); First outlet of said separating valve (24) is connected with big flow shower nozzle (13) through second lubricating oil pipe; Second outlet of separating valve (24) is connected through the import of the 3rd lubricating oil pipe with big inner first oil leab of column (6) (8), and the 3rd outlet of separating valve (24) is connected with the import of inner second oil leab of knife rest (7) (9) through the 4th lubricating oil pipe, and the outlet of said first oil leab (8) and second oil leab (9) all communicates with the left part of preceding oil groove (12a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120553401 CN202462107U (en) | 2011-12-27 | 2011-12-27 | Heat balance system of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120553401 CN202462107U (en) | 2011-12-27 | 2011-12-27 | Heat balance system of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202462107U true CN202462107U (en) | 2012-10-03 |
Family
ID=46910303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120553401 Withdrawn - After Issue CN202462107U (en) | 2011-12-27 | 2011-12-27 | Heat balance system of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202462107U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423863A (en) * | 2011-12-27 | 2012-04-25 | 重庆机床(集团)有限责任公司 | Heat balance system of machine tool |
| CN111906390A (en) * | 2020-08-11 | 2020-11-10 | 湖南飞阳齿轮制造有限责任公司 | Hydraulic hobbing machine for industrial gear machining |
-
2011
- 2011-12-27 CN CN 201120553401 patent/CN202462107U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423863A (en) * | 2011-12-27 | 2012-04-25 | 重庆机床(集团)有限责任公司 | Heat balance system of machine tool |
| CN102423863B (en) * | 2011-12-27 | 2013-07-17 | 重庆机床(集团)有限责任公司 | Heat balance system of machine tool |
| CN111906390A (en) * | 2020-08-11 | 2020-11-10 | 湖南飞阳齿轮制造有限责任公司 | Hydraulic hobbing machine for industrial gear machining |
| CN111906390B (en) * | 2020-08-11 | 2021-11-02 | 湖南飞阳齿轮制造有限责任公司 | Hydraulic hobbing machine for industrial gear machining |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20130717 |
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| RGAV | Abandon patent right to avoid regrant |