CN201931087U - Full-automatic numerical-control lathe with double spindles - Google Patents
Full-automatic numerical-control lathe with double spindles Download PDFInfo
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- CN201931087U CN201931087U CN2011200431998U CN201120043199U CN201931087U CN 201931087 U CN201931087 U CN 201931087U CN 2011200431998 U CN2011200431998 U CN 2011200431998U CN 201120043199 U CN201120043199 U CN 201120043199U CN 201931087 U CN201931087 U CN 201931087U
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Abstract
The utility model discloses a full-automatic numerical-control lathe with double spindles, which comprises a first spindle box with a first spindle inside, and a second spindle box with a second spindle inside. The first spindle box is mounted on a base via a first spindle box base, the second spindle box is mounted on a lathe body, the first spindle and the second spindle are arranged coaxially, a cutter assembly is mounted on the first spindle box, a cutter can move along the direction of a Y-axis, a sleeve in slide fit along the direction of a Z-axis is arranged on the periphery of the second spindle, and the sleeve is mounted in the second spindle box via a bearing and provided with a hydraulic cylinder used for pushing the second spindle to move along the direction of the Z-axis. The second spindle of the full-automatic numerical-control lathe is telescopic and used for clamping workpieces when getting close to the first spindle. In addition, the second spindle is provided with a workpiece position sensor, the spindles and cutters are started to process only when raw materials are accurately positioned, and the cutters can be in place instantly when cutting the workpiece, so that processing time is shortened and work efficiency is improved.
Description
Technical field
The utility model relates to a kind of numerically controlled lathe, relates in particular to a kind of pair of main shaft full-automatic numerical control lathe.
Background technology
Numerically controlled lathe is the main product of machine industry, be to realize the modern key equipment of equipment manufacturing the present age, the quantity of China's high-performance numerically controlled lathe and kind a few days ago, still can not satisfy the demand of domestic market, high-tech industry particularly, bearing as China is made the special manufacturer, the efficient numerically controlled lathe of axletree bearing roller still is badly in need of very much, because the machining accuracy height of numerically controlled lathe is advanced in performance, the efficient height adds the auxiliary equipment feeder, material receiver can be realized fully-automatic production, one people manages multiple computer desk, can carry out multitool control easily, saves a large amount of labours.
For example Chinese utility model patent 200720110246.X discloses a kind of cnc lathe of processing wheel hub, comprises a body component, a carriage saddle assembly, a main spindle box assembly and a workpiece mounting bracket assembly; Body component and carriage saddle assembly contain the three-dimensional path locus that an X-axis servomotor, a Y-axis servomotor and a Z axle servomotor are being controlled cutter respectively, and the main spindle box assembly comprises a scroll chuck, fixes a workpiece installation sleeve on the scroll chuck; The workpiece mounting bracket assembly comprises a cylinder and a workpiece sleeve, and a thimble is arranged on the workpiece sleeve; Workpiece installation sleeve on the main spindle box assembly and the thimble on the workpiece mounting bracket assembly are located workpiece in the axial direction and are guaranteed workpiece and main shaft commentaries on classics together.
China's utility model patent 200620100195.8 discloses a kind of main axle moving formula numerically controlled lathe, comprises a workbench, and the table surface dual-side respectively fixedly installs a side panel, is provided with two guide rail Z axles in the middle of the table top; Z axis rail panel is set on the described guide rail, a main spindle box is set on this panel, its top fixedly installs a spindle motor, and spindle motor is by a belt and the main shaft interlock that is arranged on the main spindle box the inside; Described workbench two sides front edge of board connects X-axis guide rail base plate with bolting, and this is provided with two cross slide waies above guide rail base plate, and X-axis guide rail panel is set on guide rail; Be provided with two longitudinal rails above the described X-axis guide rail panel, be provided with one on the guide rail and can make the Y-axis guide rail panel vertically move along guide rail.
In order to cut off workpiece, also has other two kinds of common cutting knifes mode of advancing in the prior art, wherein a kind of mode is referring to Fig. 1 (being the vertical view of numerically controlled lathe), being provided with on lathe bed can be along the slide plate 23 of X-axis and the slip of Z axle, on the slide plate 23 tool rest is installed, being fixed on this tool rest of cutting knife 22 levels, slide plate 23 need slide along X-axis and Z axle both direction during cutting, make cutting knife 22 from the close position that needs cutting, the side of workpiece 21, and then the cutting of horizontal direction is carried out in feed.
Another mode is referring to Fig. 2 (being the vertical view of numerically controlled lathe), being provided with on lathe bed can be along the slide plate 23 of X-axis and the slip of Z axle, on the slide plate 23 tool rest is installed, cutting knife 22 vertical being fixed on this tool rest, slide plate 23 need slide along X-axis and Z axle both direction during cutting, make cutting knife 33 be in workpiece 21 need cutting part directly over, and then the cutting of Y-axis vertical direction is carried out in feed.
But above dual mode need at first be finished the processing of excircle of workpiece, and then cuts, and is equivalent to two operations, just can finish the processing of whole workpiece, and efficient is lower.
Some numerically controlled lathes have adopted two main axle structures, two main shafts of layout coaxial or arranged side by side, when processing the two ends of same workpiece, need utilize two main shafts to carry out respectively, when processing a side, need manual workpiece is taken off from a main shaft to be installed on the another one main shaft, in addition, need blanking, tack, cylindrical processing, four operations of cutting in order to finish the processing of a workpiece, just need four operators to utilize four numerically controlled lathes to finish.Equipment and labour's occupancy height have strengthened production cost.
When workpiece raw material length is longer, the part that processes need be cut down from raw material (bar), and then promote raw material to second major axes orientation from first main shaft, the length of feeding is generally controlled by the stroke of feeding hydraulic cylinder in the prior art, but when raw material slightly tilts or is crooked, although the stroke of feeding hydraulic cylinder has reached predetermined value, but with respect to second main shaft, raw material is accurately not in place, process if start two main shafts this moment, will inevitably produce defective work.
The utility model content
The utility model provides a kind of pair of main shaft full-automatic numerical control lathe, utilizes telescopic second main shaft to match with first main shaft, high efficiency workpiece is processed and cut, and realized automatic induction to the location of workpiece.
A kind of pair of main shaft full-automatic numerical control lathe, comprise base, be positioned at first main shaft assembly and lathe bed on the base, be positioned at second main shaft assembly on the lathe bed, described first main shaft assembly comprises first main spindle box of built-in first main shaft, first main spindle box is installed on the base by the first main shaft block, described second main shaft assembly comprises second main spindle box of built-in second main shaft, second main spindle box is installed on the lathe bed, first main shaft and the second main shaft coaxial arrangement, on described first main spindle box cutting blade assembly is installed, cutting blade assembly comprises first guide rail of arranging along Y direction, the Cutter apron that is slidingly matched with this first guide rail, the driving mechanism of Cutter apron and be fixed on cutting knife on the Cutter apron, the described second main shaft periphery is provided with the sleeve that is slidingly matched along Z-direction, this sleeve is installed in second main spindle box by bearing, be provided with hydraulic cylinder in second main shaft assembly, relative second main spindle box of the cylinder body of hydraulic cylinder is fixed, piston rod in the cylinder body is connected with second main shaft, is used to drive second main shaft and moves along Z-direction.
As numerically controlled lathe, be provided with necessary numerically controlled control system, each electrical components and necessary sensor, instrument etc. all insert and are controlled by numerically controlled control system.
In the described cutting blade assembly, be provided with second guide rail of arranging along Z-direction that is fixed on the first main spindle box top, and the transmission case that is slidingly matched with second guide rail, described first guide rail is fixed on the transmission case sidewall.Cutting knife is positioned at directly over the processing component, and when cutting knife moved along Y-axis, actual motion distance was the Y-axis displacement promptly, so cutting knife can be in place rapidly during cut workpiece, shortens process time, improved production efficiency.
Transmission case is connected to driving mechanism, is used to drive transmission case and slides along second guide rail.
The driving mechanism of described Cutter apron comprises leading screw and the drive motors thereof that is positioned at transmission case, and this threads of lead screw is combined with spigot nut, and described Cutter apron is fixedlyed connected with spigot nut.Generally adopt servomotor in order to improve the described drive motors of machining accuracy, pass through band transmission synchronously between the output shaft of drive motors and the leading screw.
Be provided with the keyway arrangements of arranging between the outer wall of described second main shaft and the inwall of sleeve along Z-direction.Only can be between second main shaft and the sleeve along axially the moving mutually of Z axle, and can't relatively rotate, when sleeve rotates, just can drive second main shaft and rotate like this.
Hydraulic cylinder in second main shaft assembly is fixed on the side of second main spindle box, and other second main shaft is with the tail cylinder that is rotatably assorted by bearing away from an end of first main shaft, and the piston rod in this hydraulic cylinder is fixedly connected on the tail cylinder.Because the tail cylinder, can promote second main shaft by the tail cylinder and slide in the second main shaft outside by bearing holder (housing, cover), and do not influence the rotation of second main shaft in sleeve.
Be provided be used to drive second main shaft with and the motor of outer sleeve.Described sleeve outer wall is fixedly connected with belt pulley, and described motor also can adopt other interlock modes for the rotation that drives second main shaft and sleeve certainly by belt and belt pulley interlock.
When second main shaft moves along the Z axle, can change and first main shaft between distance, in conjunction with the opening and closing of the claw of first main shaft and second spindle nose, realize workpiece is transferred to second main shaft by first main shaft.
Described first main shaft and second main shaft all have axial through hole, be provided with and the corresponding feed mechanism of the lead to the hole site of first main shaft in the side of first main shaft away from second main shaft, long bar-like raw material can stretch into the through hole of first main shaft by the promotion of feed mechanism, feed mechanism can adopt common hydraulic pushing device, realizes that bar-like raw material moves along the Z axle.
Flexible push rod and inductive switch are installed in the through hole of described second main shaft successively, flexible push rod at least a portion is extended the opening of this through hole towards first main shaft, one side, the holding wire of inductive switch extends second main shaft along this through hole from the opening away from first main shaft, one side, insert the numerically controlled control system of numerically controlled lathe again, when workpiece was in place with respect to second main shaft, extruding flexible push rod in the termination of workpiece triggered inductive switch.
The inwall of the through hole of described second main shaft is provided with limited step, is provided with back-moving spring between flexible push rod and limited step, and flexible push rod is applied thrust towards first major axes orientation.
During feeding, raw material is gradually near the second main shaft end face (promptly locating end face), and begin to push flexible push rod, make in the through hole of flexible push rod compression reseting spring retraction second main shaft, when the raw material termination contacts the second main shaft end face, promptly flexible push rod also is in extreme position and triggers inductive switch, after the numerically controlled control system of numerically controlled lathe is received signal in place, begins raw material in place is processed.
Second main shaft of the utility model numerically controlled lathe can stretch, be used near the first main shaft gripping workpiece, by rotating speed or the rotation direction that changes second main shaft, can be when needed and first main shaft make a concerted effort to twist off coupling part residual between workpiece, then utilize the opposite side of workpiece processing tool, automaticity is higher.Have location of workpiece induction installation in other second main shaft, with respect to second main shaft, raw material has only accurately in place, just can open main shaft and cutter is processed, and has improved product percent of pass.
In addition, in the processing work cylindrical, just can cut, the lathe tool of processing excircles was overlapped with the time kept in reserve of cutting knife, moreover, when cutting knife moved along Y-axis, actual motion distance was the Y-axis displacement component promptly, so cutting knife can be in place rapidly during cut workpiece, shorten process time, improved production efficiency.
Description of drawings
Fig. 1 is the advance schematic diagram of mode of a kind of numerically controlled lathe cutting knife in the prior art;
Fig. 2 is the advance schematic diagram of mode of another kind of numerically controlled lathe cutting knife in the prior art;
Fig. 3 is the structural representation of a kind of pair of main shaft full-automatic numerical control of the utility model lathe;
Fig. 4 is the structural representation of cutting blade assembly;
Fig. 5 is the structural representation of second main shaft assembly;
Fig. 6 is the structural representation at claw position in second main shaft assembly, and workpiece wherein to be processed does not contact with flexible push rod as yet;
Fig. 7 is the schematic diagram that workpiece to be processed among Fig. 6 has just contacted with flexible push rod;
Fig. 8 is the flexible schematic diagram of push rod when extreme position of workpiece extruding to be processed among Fig. 6;
Fig. 9 is the structural representation at inductive switch position in second main shaft assembly;
Figure 10 is the schematic diagram of workpiece to be processed.
The specific embodiment
Referring to Fig. 3, a kind of pair of main shaft full-automatic numerical control of the utility model lathe comprises base 1, is positioned at first main shaft assembly 3 and lathe bed 2 on the base 1, and second main shaft assembly 6 is housed on the lathe bed 2.
First main shaft assembly 3 comprises first main spindle box of built-in first main shaft, and first spindle nose has the claw that is used for holding workpiece 7.First main spindle box is installed on the base 1 by the first main shaft block, and second main shaft assembly 6 comprises second main spindle box of built-in second main shaft, and second main spindle box is installed on the lathe bed 2, first main shaft and the second main shaft coaxial arrangement.
Also be provided with the slide plate that can slide along X-axis and Z axle on the lathe bed 2, cutting tool assembly 5 is installed on this slide plate, generally can be used for the cylindrical and the end face of processing work.
Cutting blade assembly 4 is installed, the Cutter apron 47 that referring to Fig. 4, cutting blade assembly comprises first guide rail 48 arranged along Y direction, be slidingly matched with this first guide rail 48, the driving mechanism of Cutter apron 47 and be fixed on cutting knife 49 on the Cutter apron 47 on first main spindle box.
Also be provided with second guide rail of arranging along Z-direction 41 that is fixed on first main spindle box, 31 tops in the cutting blade assembly, and be fixed on transmission case 42 sidewalls with transmission case 42, the first guide rails 48 that second guide rail 41 is slidingly matched.The driving mechanism of Cutter apron 47 comprises leading screw 45 and the drive motors 43 thereof that is positioned at transmission case 42, and these leading screw 45 threaded engagement have spigot nut 46, and Cutter apron 47 is fixedlyed connected with spigot nut 46.Adopt servomotors in order to improve machining accuracy drive motors 43, between its output shaft and the leading screw 45 by being with 44 transmissions synchronously.
Cutting knife 49 is positioned at directly over the processing component, and when cutting knife moved along Y-axis, actual motion distance was the Y-axis displacement promptly, so cutting knife 49 can be in place rapidly during cut workpiece, shortens process time, improved production efficiency.
In addition as numerically controlled lathe, be provided with necessary numerically controlled control system, each electrical components and necessary sensor, instrument etc. all insert and are controlled by numerically controlled control system.
Referring to Fig. 5, second main shaft, 63 peripheries are provided with the sleeve 62 that is slidingly matched along Z-direction, and sleeve 62 is installed in second main spindle box 61 by bearing, is provided with hydraulic cylinder 65, and the cylinder body of hydraulic cylinder 65 is fixed on second main spindle box, 61 sidewalls.
Second main shaft, 63 ends are with the tail cylinder 64 that is rotatably assorted by bearing, and the piston rod 66 in the cylinder body is fixedly connected on the tail cylinder 64, are used to drive second main shaft 63 and move along Z-direction.Because tail cylinder 64,, promotes second main shaft 63 by tail cylinder 64 and slides during piston rod 66 motions in second main shaft, 63 outsides by bearing holder (housing, cover), and do not influence the rotation of second main shaft 63 in sleeve 62.
Be provided with the keyway arrangements (not shown) of arranging between the inwall of the outer wall of second main shaft 63 and sleeve 62 along Z-direction, only making between second main shaft 63 and the sleeve 62 can axially moving along the Z axle mutually, and can't rotate mutually, when sleeve 62 rotates, just can drive second main shaft 63 and rotate like this.
Be provided be used to drive second main shaft 63 with and the motor (not shown) of outer sleeve 62, sleeve 62 outer walls are fixedly connected with belt pulley 69, motor is by belt 60 and belt pulley 69 interlocks.
Second main shaft 63 is provided with chuck 67 near an end of first main shafts and is positioned at the claw that is used for fixing workpiece 68 on the chuck 67.
First main shaft and second main shaft all have axial through hole, be provided with and the corresponding feed mechanism of the lead to the hole site of first main shaft in the side of first main shaft away from second main shaft, long bar-like raw material can stretch into the axially extending bore of first main shaft by the promotion of feed mechanism, feed mechanism can adopt hydraulic pushing device, realizes that bar-like raw material moves along the Z axle.
Be provided with the induction installation 8 that is used to respond to the location of workpiece in the through hole of second main shaft, referring to Fig. 7～9, flexible push rod 82 and inductive switch 84 are installed in the through hole of second main shaft successively, flexible push rod 82 at least a portion are extended the opening of this through hole towards first main shaft, one side, the holding wire 85 of inductive switch 84 extends second main shaft along this through hole from the opening away from first main shaft, one side, insert the numerically controlled control system of numerically controlled lathe again, the inwall of the through hole of second main shaft is provided with limited step, be provided with back-moving spring 81 between flexible push rod 82 and limited step, 81 pairs of flexible push rods 82 of back-moving spring apply the thrust towards first major axes orientation.
When second main shaft rotates, in order to keep inductive switch 84 relative static with holding wire 85, can in through hole, one sleeve pipe be installed by bearing, inductive switch 84 and holding wire 85 are fixed in the sleeve pipe, the second main shaft afterbody also is equipped with the tail cover by bearing, sleeve pipe overlaps relative fixed with tail and all cooperates by bearing with second main shaft, and what the tail cover was direct or indirect again keeps circumferential fixing with second main spindle box.
During feeding, workpiece 7 is gradually near the second main shaft end face, and begin to push flexible push rod 82, flexible push rod 82 compression reseting springs 81, and in the retraction through hole, when workpiece 7 terminations contact the end face 83 of chuck, promptly flexible push rod 82 also is in extreme position and triggers inductive switch 84, when flexible push rod 82 is in extreme position and the distance between the inductive switch 84 be W, promptly guarantee at least to enter in the induction zone that triggers inductive switch 84, after the numerically controlled control system of numerically controlled lathe is received signal in place, begin workpiece in place 7 is processed.
Referring to Figure 10, add and at first bar-like raw material 71 workpiece are fixed in first main shaft man-hour, at first utilize first end face 72 of workpiece processing tool, when processing first end face 72, according to the requirement of workpiece shape, also need sometimes to process the groove of end face and the chamfering of end face edge, and then processing work cylindrical 73, cutting knife moves along Y-axis and cuts in processing excircles 73, residual section 74 about residual diameter 4mm only between workpiece and bar-like raw material 71.
Carry out feeding then, close vertically first main shaft of second main shaft is until arriving the predetermined position that connects material during feeding, push raw material to second main shaft from first main shaft then, when induction installation is sensed workpiece with respect to second main shaft behind the accurate location, utilize the fastening workpiece of claw of second main shaft, adjust relative the turning to or rotating speed between first main shaft and second main shaft, residual section 74 is twisted off, second main shaft moves vertically and resets away from first main shaft, utilize second end face 75 of workpiece processing tool again, promptly finish the processing of workpiece, can utilize manipulator automatically workpiece to be shifted out numerically controlled lathe at last.
Claims (8)
1. two main shaft full-automatic numerical control lathe, comprise base, be positioned at first main shaft assembly and lathe bed on the base, be positioned at second main shaft assembly on the lathe bed, described first main shaft assembly comprises first main spindle box of built-in first main shaft, first main spindle box is installed on the base by the first main shaft block, described second main shaft assembly comprises second main spindle box of built-in second main shaft, second main spindle box is installed on the lathe bed by the second main shaft block, first main shaft and the second main shaft coaxial arrangement, it is characterized in that, the described first main spindle box outer wall is equipped with cutting blade assembly, cutting blade assembly comprises first guide rail of arranging along Y direction, the Cutter apron that is slidingly matched with this first guide rail, the driving mechanism of Cutter apron and be fixed on cutting knife on the Cutter apron, the described second main shaft periphery is provided with the sleeve that is slidingly matched along Z-direction, this sleeve is installed in second main spindle box by bearing, be provided with hydraulic cylinder in second main shaft assembly, relative second main spindle box of the cylinder body of hydraulic cylinder is fixed, and the piston rod in the cylinder body is connected with second main shaft.
2. as claimed in claim 1 pair of main shaft full-automatic numerical control lathe, it is characterized in that, in the described cutting blade assembly, be provided with second guide rail that is fixed on the first main spindle box top along the Z-direction layout, and the transmission case that is slidingly matched with second guide rail, described first guide rail is fixed on the transmission case sidewall.
3. as claimed in claim 2 pair of main shaft full-automatic numerical control lathe, it is characterized in that, the driving mechanism of described Cutter apron comprises leading screw that is positioned at transmission case and the servomotor that is used to drive this leading screw, this threads of lead screw is combined with spigot nut, and described Cutter apron is fixedlyed connected with spigot nut.
4. as claimed in claim 3 pair of main shaft full-automatic numerical control lathe is characterized in that, described second main shaft is with the tail cylinder that is rotatably assorted by bearing away from an end of first main shaft, and described piston rod is fixedly connected on the tail cylinder.
5. as claimed in claim 4 pair of main shaft full-automatic numerical control lathe is characterized in that, is provided with the keyway arrangements of arranging along Z-direction between the outer wall of described second main shaft and the inwall of sleeve.
6. as claimed in claim 5 pair of main shaft full-automatic numerical control lathe, it is characterized in that, described first main shaft and second main shaft all have axial through hole, are provided with and the corresponding feed mechanism of the lead to the hole site of first main shaft in the side of first main shaft away from second main shaft.
7. as claimed in claim 6 pair of main shaft full-automatic numerical control lathe, it is characterized in that, flexible push rod and inductive switch are installed in the through hole of described second main shaft successively, flexible push rod at least a portion is extended the opening of this through hole towards first main shaft, one side, the holding wire of inductive switch extends second main shaft along this through hole from the opening away from first main shaft, one side, inserts the numerically controlled control system of numerically controlled lathe again.
8. as claimed in claim 7 pair of main shaft full-automatic numerical control lathe, it is characterized in that, the inwall of the through hole of described second main shaft is provided with limited step, is provided with back-moving spring between flexible push rod and limited step, and flexible push rod is applied thrust towards first major axes orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200431998U CN201931087U (en) | 2011-02-21 | 2011-02-21 | Full-automatic numerical-control lathe with double spindles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200431998U CN201931087U (en) | 2011-02-21 | 2011-02-21 | Full-automatic numerical-control lathe with double spindles |
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| Publication Number | Publication Date |
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| CN201931087U true CN201931087U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200431998U Expired - Fee Related CN201931087U (en) | 2011-02-21 | 2011-02-21 | Full-automatic numerical-control lathe with double spindles |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111633A (en) * | 2013-03-05 | 2013-05-22 | 安庆瑞特机械制造有限公司 | Two-head lathe special for hydraulic pipe |
| CN114160819A (en) * | 2022-02-15 | 2022-03-11 | 丹棱联合机械实业有限公司 | High-efficiency continuous machining system and method for numerical control machine tool |
| CN115056036A (en) * | 2022-07-13 | 2022-09-16 | 浙江金火科技实业有限公司 | Spindle box part detection device on numerical control lathe |
-
2011
- 2011-02-21 CN CN2011200431998U patent/CN201931087U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111633A (en) * | 2013-03-05 | 2013-05-22 | 安庆瑞特机械制造有限公司 | Two-head lathe special for hydraulic pipe |
| CN114160819A (en) * | 2022-02-15 | 2022-03-11 | 丹棱联合机械实业有限公司 | High-efficiency continuous machining system and method for numerical control machine tool |
| CN115056036A (en) * | 2022-07-13 | 2022-09-16 | 浙江金火科技实业有限公司 | Spindle box part detection device on numerical control lathe |
| CN115056036B (en) * | 2022-07-13 | 2024-05-07 | 浙江金火科技实业有限公司 | Main spindle box part detection device on numerical control lathe |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20140221 |