CN201267903Y - Ring surface worm screw numerically controlled machine of virtual rotation center - Google Patents
Ring surface worm screw numerically controlled machine of virtual rotation center Download PDFInfo
- Publication number
- CN201267903Y CN201267903Y CNU2008201001054U CN200820100105U CN201267903Y CN 201267903 Y CN201267903 Y CN 201267903Y CN U2008201001054 U CNU2008201001054 U CN U2008201001054U CN 200820100105 U CN200820100105 U CN 200820100105U CN 201267903 Y CN201267903 Y CN 201267903Y
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- worm
- tool
- tool stand
- horizontal
- rotating
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Abstract
The utility model discloses an annular surface worm nc machine of a virtual rotating center, which comprises a machine body, a main shaft system, a tool platform longitudinal feed system, a tool platform transverse feed system and a control system; the utility model also comprises a tool platform rotating system; the tool platform rotating system comprises a rotating driving motor and a rotating variable transmission mechanism; the power input end of the rotating variable transmission mechanism is connected with the rotating driving motor; the power output end of the rotating variable transmission mechanism is connected with a tool platform to drive the tool platform to rotate along the axis vertical to the transverse feed direction and the longitudinal feed direction; the main shaft system, the tool platform longitudinal feed system, the tool platform transverse feed system, and the tool platform rotating system are controlled by a control system. The utility model meets the forming principle of the commonly used arc rotating surface worm, can realize the goal of processing large-central distance annular surface worm with a small central distance, reduces the transverse size of the machine, has a small occupied area, effectively reduces the production cost, can be used for processing various worms, and has high commonality.
Description
Technical field
The utility model relates to a kind of enveloping worm Digit Control Machine Tool, is a kind of enveloping worm Digit Control Machine Tool of the virtual centre of gyration.
Background technology
Worm-drive is one of main machine driving commonly used in the mechanized equipment, characteristics such as it mainly has gear range wide (a common stage gear ratio can reach 5～100), compact conformation, volume is little, motion is steady, noise is low, in transmission system, the upstream error there is the effect of holding back of contracting, thereby is usually used in the accurate circular division mechanism.
Worm-drive mainly comprises cylindrical worm gearing transmission, enveloping worm transmission and Procedure for Spiroid Gearing; Enveloping worm transmission such as planar double enveloping worm transmission, toroid enveloping worm with cone generatrix transmission, hindley worm transmission etc., also have higher bearing capacity, transmission efficiency because of it, life-span is long, superiority such as the average error of division is little, be more suitable for being applied to important occasion, as various metallurgy, mine, oil recovery, colliery, chemical industry, boats and ships, track traffic, cannon, elevator and common apparatus etc.
The anchor ring worm screw can be subdivided into two kinds in scrobicular ring face and bulge loop face again, the processing of its tooth portion is different from cylindrical worm, add man-hour, the worm screw workpiece is done gyration around self axis, and the instrument of cutting or grinding worm thread is then done gyration around the axis of the certain vertical range of distance worm axis by certain gear ratio.
In the prior art, cutting of enveloping worm groove or grinding are generally carried out on the special plane with gear-hobbing machine or lathe repacking.
More than there is following defective in processing:
1. processing column worm screw, conical worm, recessed anchor ring worm screw, the used lathe of this four classes worm screw of dome enveloping worm generally do not possess versatility, especially process conical worm, recessed anchor ring worm screw, dome enveloping worm, need on special plane separately, to carry out respectively.
2. the function of all kinds of worm screw machining tools is general more single, and turning, milling, grinding generally need to carry out respectively on different lathes.
3. all enveloping worm machining tools, when the recessed anchor ring worm screw of processing, the operating center distance of its tool stand gyroaxis and worm axis, all must be not less than the worm geared centre-to-centre spacing of recessed anchor ring worm screw of being processed and the worm gear that matches composition, the vertical, horizontal size of lathe is all very big, not only take up an area of greatly, heaviness, and also extremely uneconomical; In addition, if,, can not satisfy the length of worm requirement though can satisfy the requirement of centre-to-centre spacing with existing gear-hobbing machine repacking special plane; If,, can not satisfy the centre-to-centre spacing requirement though can satisfy the length of worm requirement with existing lathe repacking special plane.
Therefore, need a kind of enveloping worm Digit Control Machine Tool, can realize the big centre-to-centre spacing anchor ring of the machine tooling worm screw with little centre-to-centre spacing, cost is low, compact conformation, takes up room for a short time, has versatility, can be when machining worm a tractor serves several purposes.
The utility model content
In view of this, the purpose of this utility model provides a kind of enveloping worm Digit Control Machine Tool of the virtual centre of gyration, can dwindle the vertical, horizontal size of lathe, and cost is low, compact conformation, take up room little; Can be used for processing all types of worm screws, highly versatile, a tractor serves several purposes.
The enveloping worm Digit Control Machine Tool of the virtual centre of gyration of the present utility model, comprise lathe bed, axis system, the tool stand longitudinal feed system, tool stand traverse feed system and control system, described axis system, tool stand longitudinal feed system and tool stand traverse feed system are controlled by control system, also comprise the tool stand rotary system, described tool stand rotary system comprises revolution drive motors and revolution variable transmission mechanism, described revolution variable transmission mechanism power intake links to each other with the revolution drive motors, clutch end links to each other with tool stand, and the driven tool platform winds the axis rotation perpendicular to traverse feed direction and length feed direction; Described tool stand rotary system is controlled by control system.
Further, described revolution variable transmission mechanism comprises worm gear and the worm screw that is mated, described worm screw links to each other with the revolution drive motors, and worm gear is arranged on the worm-wheel shaft in fixing in a circumferential direction mode, and described worm-wheel shaft is fixedlyed connected in a circumferential direction with tool stand;
Further, described tool stand longitudinal feed system is vertical ball screw arrangement that vertical drive motor drives, tool stand traverse feed system is the horizontal ball screw arrangement that horizontal drive motor drives, tool stand traverse feed system is arranged on vertically moving on the parts of tool stand longitudinal feed system, and the tool stand rotary system is arranged on the horizontal moving-member of tool stand traverse feed system;
Further, described vertically move parts comprise cooperate with vertical ball-screw vertically move nut, with vertically move nut fixedlys connected vertically move slip crate and be fixedly installed on the slide carriage that vertically moves that vertically moves on the slip crate; Described horizontal moving-member comprises and horizontal ball-screw horizontal travelling nut that cooperates and the horizontal mobile slip crate of fixedlying connected with horizontal travelling nut; Described horizontal mobile slip crate is arranged on by horizontal sliding rail and vertically moves on the slide carriage; Also comprise worm gear case, described revolution drive motors and worm gear case are arranged on the horizontal mobile slip crate, and worm gear and worm screw matching pair are installed in the worm gear case;
Further, described axis system comprises spindle motor, main shaft and work piece holder, and described spindle motor drives the work piece holder rotation by the driving-chain drive shaft;
Further, spindle motor, vertical drive motor, horizontal drive motor and revolution drive motors are servomotor;
Further, on the described tool stand tool holder, milling head or bistrique are installed.
The beneficial effects of the utility model are: the enveloping worm Digit Control Machine Tool of the virtual centre of gyration of the present utility model, adopt the tool stand rotary system, the driven tool platform winds the axis rotation perpendicular to traverse feed direction and length feed direction, make tool stand on the basis of length feed and traverse feed, realize rotation and revolution, add the rotation of workpiece, meet the formation principle that arc rotary surface worm screw commonly used is recessed anchor ring worm screw or dome enveloping worm screw thread, realized purpose with the big centre-to-centre spacing enveloping worm of machine tooling of little centre-to-centre spacing, the lateral dimension of lathe reduces greatly, take up an area of little, cost saving reduces production costs effectively; Four motions of the utility model can be carried out single action control, also can make up the control that links arbitrarily, therefore can be used for processing all types of worm screws, highly versatile, a tractor serves several purposes.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the utility model control principle figure;
Fig. 4 for the utility model utilizes virtual centre of gyration function process the schematic diagram of recessed anchor ring worm screw;
The schematic diagram of Fig. 5 virtual centre of gyration function processing dome enveloping worm for the utility model utilizes.
The specific embodiment
Fig. 1 is a structural representation of the present utility model, Fig. 2 is the vertical view of Fig. 1, as shown in the figure: the enveloping worm Digit Control Machine Tool of the virtual centre of gyration of present embodiment, comprise lathe bed 1, axis system, tool stand longitudinal feed system, tool stand traverse feed system and control system 28, axis system, longitudinal feed system and traverse feed system are by control system 28 controls; In the present embodiment, axis system comprises spindle motor 10, main shaft 12 and work piece holder 13, described spindle motor 10 and driving-chain 11 are arranged in the main spindle box 2, drive work piece holder 13 rotations by driving-chain 11 drive shaft 12, during work, workpiece 14 clamps by work piece holder 13, and withstand by tailstock 15 rear end, guarantees to add the stability in man-hour; The tool stand longitudinal feed system is vertical ball screw arrangement that vertical drive motor 16 drives, comprise vertical ball-screw 17, cooperates with vertical ball-screw 17 vertically move nut 18, with vertically move that nut 18 fixedlys connected vertically move slip crate 4, be fixedly installed on to vertically move and vertically move the interior vertical drive motor 16 of slide carriage 5 and stringer board case 3 on the slip crate 4, the described slip crate 4 that vertically moves is arranged on the longitudinal rail 19 in the mode that can vertically move; Tool stand traverse feed system is the horizontal ball screw arrangement that horizontal drive motor 20 drives, and comprises horizontal ball-screw 21, the horizontal travelling nut 22, the horizontal mobile slip crate 7 of fixedlying connected with horizontal travelling nut 22 that cooperate with horizontal ball-screw 21 and is arranged on the interior horizontal drive motor 20 of transverse axis case 6; Horizontal mobile slip crate 7 is arranged on by horizontal sliding rail 23 and vertically moves on the slide carriage 5;
Also comprise the tool stand rotary system, the tool stand rotary system is arranged on the horizontal moving-member of tool stand traverse feed system, comprises revolution drive motors 24 and revolution variable transmission mechanism; In the present embodiment, the revolution variable transmission mechanism comprises accurate worm gear 26 and the precise worm 25 that is mated, and transmission is accurate, and friction is convenient to operation and control; Precise worm 25 links to each other with revolution drive motors 24, accurate worm gear 26 is arranged on the worm-wheel shaft in fixing in a circumferential direction mode, worm-wheel shaft is fixedlyed connected in a circumferential direction with tool stand 9, and driven tool platform 9 winds the axis rotation perpendicular to traverse feed direction and length feed direction; The tool stand rotary system is controlled by control system 28, finishes rotation; The accurate worm gear 26 of present embodiment and precise worm 25 matching pairs are installed in the worm gear case 8, and revolution drive motors 24 and worm gear case 8 are arranged on the horizontal mobile slip crate 7.
In the present embodiment, spindle motor 10, vertical drive motor 16, horizontal drive motor 20 and revolution drive motors 24 are servomotor, and transmission is accurate, is convenient to control; On the tool stand 9 of present embodiment tool holder, milling head or bistrique can be installed, the utility model just can be respectively applied for turning or milling or the grinding Digit Control Machine Tool of making the processing enveloping worm.
Fig. 3 is the utility model control principle figure, and as shown in the figure: 29 is that tool stand length travel sensor, 30 is that tool stand lateral displacement sensor, 31 is that workpiece sensing displacement transducer, 32 is a tool stand revolution detecting sensor; The sensor imports signal into control system 28 after detecting coherent signal, control system 28 is sent instruction according to signal, drives spindle motor 10, vertical drive motor 16, horizontal drive motor 20 and revolution drive motors 24 are finished single action or interlock, thereby finish workpiece process.
Fig. 4 for the utility model utilizes virtual centre of gyration function process the schematic diagram of recessed anchor ring worm screw, the schematic diagram of Fig. 5 virtual centre of gyration function processing dome enveloping worm for the utility model utilizes, as shown in the figure: workpiece 14 around its axis with angular velocity omega
1Revolution (among the figure A to), at this moment, be fixed on the tool stand 9 straight knife tool 27 with tool stand 9 under the driving of tool stand rotary system with angular velocity omega
2(among the figure Y to) changeed in wraparound, and by X, the Z interlock along a circular curve orbiting motion, realizes 0 to be the circular motion in the center of circle, make straight knife tool 27 keep with the center of circle be 0, radius is r
bBasic circle tangent; Like this, the track plane that rectilinear edge 27 forms on worm screw is exactly the helical tooth flank of hindley worm; The utility model be with rectilinear edge 27 with
Around 0 rotating motion, be decomposed into following motion equivalently: rectilinear edge 27 is with ω
0With tool stand 9 around center O
0Do gyration (Y to) and by the centre of gyration of tool stand 9 by horizontal (X to) translation and vertically (Y to) translation is synthetic is the circular motion in the center of circle with 0.The actual machining center of lathe of this moment much smaller than the centre-to-centre spacing a of design with theoretical requirement, has been realized the purpose with the big centre-to-centre spacing enveloping worm of little centre-to-centre spacing processing and manufacturing apart from, reduces the lateral dimension of lathe greatly.
When only allowing A, X, Z three-shaft linkage, this lathe just can be used for processing conical worm; Also be suitable for processed complex surface of revolution part; When only allowing A, Z two-axle interlocking, this lathe just can be used for the processing column worm screw; Also be suitable for processing column face or cylindrical thread class part, thereby the utility model versatility is more intense.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. the enveloping worm Digit Control Machine Tool of a virtual centre of gyration, comprise lathe bed (1), axis system, the tool stand longitudinal feed system, tool stand traverse feed system and control system (28), described axis system, tool stand longitudinal feed system and tool stand traverse feed system are controlled by control system (28), it is characterized in that: also comprise the tool stand rotary system, described tool stand rotary system comprises revolution drive motors (24) and revolution variable transmission mechanism, described revolution variable transmission mechanism power intake links to each other with revolution drive motors (24), clutch end links to each other with tool stand (9), and driven tool platform (9) winds the axis rotation perpendicular to traverse feed direction and length feed direction; Described tool stand rotary system is controlled by control system (28).
2. the enveloping worm Digit Control Machine Tool of the virtual centre of gyration according to claim 1, it is characterized in that: the worm screw (25) that described revolution variable transmission mechanism comprises worm gear (26) and is mated, described worm screw (25) links to each other with revolution drive motors (24), worm gear (26) is arranged on the worm-wheel shaft in fixing in a circumferential direction mode, and described worm-wheel shaft is fixedlyed connected in a circumferential direction with tool stand (9).
3. the enveloping worm Digit Control Machine Tool of the virtual centre of gyration according to claim 2, it is characterized in that: described tool stand longitudinal feed system is vertical ball screw arrangement that vertical drive motor (16) drives, tool stand traverse feed system is the horizontal ball screw arrangement that horizontal drive motor (20) drives, tool stand traverse feed system is arranged on vertically moving on the parts of tool stand longitudinal feed system, and the tool stand rotary system is arranged on the horizontal moving-member of tool stand traverse feed system.
4. the enveloping worm Digit Control Machine Tool of the virtual centre of gyration according to claim 3 is characterized in that: described vertically move parts comprise cooperate with vertical ball-screw (17) vertically move nut (18), with vertically move that nut (18) fixedlys connected vertically move slip crate (4) and be fixedly installed on to vertically move and vertically move slide carriage (5) on the slip crate (4); Described horizontal moving-member comprises and horizontal ball-screw (21) horizontal travelling nut (22) that cooperates and the horizontal mobile slip crate (7) of fixedlying connected with horizontal travelling nut (22); Described horizontal mobile slip crate (7) is arranged on by horizontal sliding rail and vertically moves on the slide carriage (5); Also comprise worm gear case (8), described revolution drive motors (24) and worm gear case (8) are arranged on the horizontal mobile slip crate (7), and worm gear (26) and worm screw (25) matching pair are installed in the worm gear case (8).
5. the enveloping worm Digit Control Machine Tool of the virtual centre of gyration according to claim 4, it is characterized in that: described axis system comprises spindle motor (10), main shaft (12) and work piece holder (13), and described spindle motor (10) drives work piece holder (13) rotation by driving-chain (11) drive shaft (12).
6. the enveloping worm Digit Control Machine Tool of the virtual centre of gyration according to claim 5 is characterized in that: spindle motor (10), vertical drive motor (16), horizontal drive motor (20) and revolution drive motors (24) are servomotor.
7. the enveloping worm Digit Control Machine Tool of the virtual centre of gyration according to claim 6 is characterized in that: last tool holder, milling head or the bistrique installed of described tool stand (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201001054U CN201267903Y (en) | 2008-09-25 | 2008-09-25 | Ring surface worm screw numerically controlled machine of virtual rotation center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201001054U CN201267903Y (en) | 2008-09-25 | 2008-09-25 | Ring surface worm screw numerically controlled machine of virtual rotation center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201267903Y true CN201267903Y (en) | 2009-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201001054U Expired - Fee Related CN201267903Y (en) | 2008-09-25 | 2008-09-25 | Ring surface worm screw numerically controlled machine of virtual rotation center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201267903Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139219A (en) * | 2013-11-26 | 2014-11-12 | 上海拓璞数控科技有限公司 | Five-axis grinding wheel grinding processing method for planar enveloping hourglass worm |
| CN104923864A (en) * | 2015-06-18 | 2015-09-23 | 淮安远航船用设备制造有限公司 | Special lathe for worm grinding |
| CN104923865A (en) * | 2015-06-18 | 2015-09-23 | 淮安远航船用设备制造有限公司 | Special lathe for worm grinding |
| CN106272142A (en) * | 2015-05-18 | 2017-01-04 | 博世华域转向系统有限公司 | The power-assisted transmission mechanism of a kind of electric direction varying device worm screw roughness concentration fixture |
| CN108581078A (en) * | 2018-07-23 | 2018-09-28 | 重庆大学 | Planar double enveloping worm flank of tooth double-side grinding lathe based on the virtual centre of gyration |
-
2008
- 2008-09-25 CN CNU2008201001054U patent/CN201267903Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139219A (en) * | 2013-11-26 | 2014-11-12 | 上海拓璞数控科技有限公司 | Five-axis grinding wheel grinding processing method for planar enveloping hourglass worm |
| CN106272142A (en) * | 2015-05-18 | 2017-01-04 | 博世华域转向系统有限公司 | The power-assisted transmission mechanism of a kind of electric direction varying device worm screw roughness concentration fixture |
| CN106272142B (en) * | 2015-05-18 | 2018-05-29 | 博世华域转向系统有限公司 | A kind of power-assisted transmission mechanism of electric direction varying device worm screw roughness concentration fixture |
| CN104923864A (en) * | 2015-06-18 | 2015-09-23 | 淮安远航船用设备制造有限公司 | Special lathe for worm grinding |
| CN104923865A (en) * | 2015-06-18 | 2015-09-23 | 淮安远航船用设备制造有限公司 | Special lathe for worm grinding |
| CN108581078A (en) * | 2018-07-23 | 2018-09-28 | 重庆大学 | Planar double enveloping worm flank of tooth double-side grinding lathe based on the virtual centre of gyration |
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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: 20090708 Termination date: 20110925 |