CN104842205A - Inner mechanism of novel numerical control machine tool - Google Patents
Inner mechanism of novel numerical control machine tool Download PDFInfo
- Publication number
- CN104842205A CN104842205A CN201510203967.4A CN201510203967A CN104842205A CN 104842205 A CN104842205 A CN 104842205A CN 201510203967 A CN201510203967 A CN 201510203967A CN 104842205 A CN104842205 A CN 104842205A
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- China
- Prior art keywords
- axis
- main shaft
- screw
- feed servo
- servo motor
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/402—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw in which screw or nut can both be driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
Abstract
The invention relates to an inner mechanism of a novel numerical control machine tool. The inner mechanism comprises a machine tool body, a main shaft electric motor, a main shaft box, a main shaft, a rotary tool rest, an X-axis feed servo electric motor, an X-axis optical-electricity encoder, an X-axis ball screw, a carriage, a Z-axis ball screw, a Z-axis feed servo electric motor, a Z-axis optical-electricity encoder and a tail frame. The main shaft box is arranged at one end of the upper portion of the machine tool body. The main shaft is arranged on the main shaft box. The main shaft electric motor is arranged on the side face of the machine tool body and connected with the main shaft through a driving shaft. The tail frame is connected with the other end of the upper portion of the machine tool body. The transverse movement of the carriage is achieved in the Z axis by means of the Z-axis feed servo electric motor through the Z-axis ball screw and achieved by means of the X-axis feed servo electric motor through the X-axis ball screw, the optical-electricity encoders are arranged at the ends of the servo electric motors and used for angular displacement measurement and digital speed measurement, and the angular displacement can indirectly reflect the linear displacement of the carriage through the screw pitch.
Description
Technical field
The present invention relates to a kind of internal mechanism of Novel numerical control machine.
Background technology
Digit Control Machine Tool is the typical products of electromechanical integration, is mechanical, electrical, the multi-disciplinary comprehensive combination such as liquid, gas and light, is made up of machine body and Computerized digital control system two large divisions.Its course of work is recorded on program medium by the digital information of encode by the fresh information of cutter motion track, then sends into digital control system through decoding and computing, control the relative motion of machine tool and workpiece, process required workpiece; Sensor occupies consequence in Digit Control Machine Tool, and its monitoring and measuring each step course of work of Digit Control Machine Tool.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, to provide a kind of internal mechanism of Novel numerical control machine.
The present invention is achieved through the following technical solutions: a kind of internal mechanism of Novel numerical control machine, comprise lathe bed, spindle drive motor, main spindle box, main shaft, circular cutter holder, X-axis feed servo motor, X-axis photoelectric encoder, X-axis ball-screw, planker, Z axis ball-screw, Z axis feed servo motor, Z axis photoelectric encoder and tailstock, above described lathe bed, one end is provided with main spindle box, described main spindle box is provided with main shaft, the side of described lathe bed is provided with spindle drive motor, described spindle drive motor is connected with main shaft by driving shaft, above described lathe bed, the other end is connected with tailstock, described lathe bed is connected with Z axis ball-screw by axle bed, described Z axis ball-screw one end is connected with Z axis feed servo motor by driving shaft, described Z axis feed servo motor is connected with Z axis photoelectric encoder, described lathe bed is slidably connected by Z axis ball-screw and is provided with planker, above described planker, spiral is connected with circular cutter holder, described planker is provided with X-axis ball-screw, described X-axis ball-screw is connected with X-axis feed servo motor, described X-axis feed servo motor is connected with X-axis photoelectric encoder, described lathe bed is provided with numerical control box and servo drive.
As preferably, described numerical control box inside is provided with digital control system, and described digital control system is connected with servo drive by convert information circuit, and described servo drive is connected with Z axis feed servo motor with X-axis feed servo motor respectively by holding wire.
As preferably, described lathe bed is provided with position detecting device.
Structure of the present invention is simple, and easy to operate, the transverse movement of planker is z-axis, is realized by z-axis ball-screw by z-axis feed servo motor; The radial motion of planker upper tool post is x-axis, is realized by x-axis ball-screw by x-axis feed servo motor.Servomotor end is furnished with photoelectric encoder, and for angle displacement measurement and Digit Velocity, angular displacement can reflect the straight-line displacement of planker or knife rest indirectly by leading screw pitch.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the servo-controlled structured flowchart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
As shown in Figure 1-2, the present invention relates to a kind of internal mechanism of Novel numerical control machine, comprise lathe bed 1, spindle drive motor 2, main spindle box 3, main shaft 4, circular cutter holder 5, X-axis feed servo motor 6, X-axis photoelectric encoder 7, X-axis ball-screw 8, planker 9, Z axis ball-screw 10, Z axis feed servo motor 11, Z axis photoelectric encoder 12 and tailstock 13, above described lathe bed 1, one end is provided with main spindle box 3, described main spindle box 3 is provided with main shaft 4, the side of described lathe bed 1 is provided with spindle drive motor 2, described spindle drive motor 2 is connected with main shaft 4 by driving shaft, above described lathe bed 1, the other end is connected with tailstock 13, described lathe bed 1 is connected with Z axis ball-screw 10 by axle bed, described Z axis ball-screw 10 one end is connected with Z axis feed servo motor 11 by driving shaft, described Z axis feed servo motor 11 is connected with Z axis photoelectric encoder 12, described lathe bed 1 is slidably connected by Z axis ball-screw 10 and is provided with planker 9, above described planker 9, spiral is connected with circular cutter holder 5, described planker 9 is provided with X-axis ball-screw 8, described X-axis ball-screw 8 is connected with X-axis feed servo motor 6, described X-axis feed servo motor 6 is connected with X-axis photoelectric encoder 7, described lathe bed 1 is provided with numerical control box and servo drive.
It should be noted that, described numerical control box inside is provided with digital control system, described digital control system is connected with servo drive by convert information circuit, and described servo drive is connected with Z axis feed servo motor 11 with X-axis feed servo motor 6 respectively by holding wire.
It should be noted that and described lathe bed 1 is provided with position detecting device.
The transverse movement of planker of the present invention is z-axis, is realized by z-axis ball-screw by z-axis feed servo motor; The radial motion of planker upper tool post is x-axis, is realized by x-axis ball-screw by x-axis feed servo motor.Servomotor end is furnished with photoelectric encoder, and for angle displacement measurement and Digit Velocity, angular displacement can reflect the straight-line displacement of planker or knife rest indirectly by leading screw pitch.
As shown in Figure 2, for z-axis, along with servomotor drives planker motion, photoelectric encoder produces the pulse signal be directly proportional to straight-line displacement x, and this signal reflects the actual position value of planker, and as position feed back signal Pf, the position command Pc obtained with digital control system computing compares, generate position error signal Pe, Pe=Pc-Pf, through signaling conversion circuit formation speed control signal nc; After nc compares with feedback speed signal nf, drag servomotor through Signal Regulation and power drive, drive planker to continue moving linearly through ball-screw nut.
When planker moves to Pf=Pc, then Pe=Pc-Pf=0, servomotor stall, so planker is just parked in the position of position command Pc defined.
As can be seen here, the resolving power of photoelectric encoder determines the precision of workbench actual displacement value, thus has influence on the precision of Digit Control Machine Tool position control.Angular encoder many employings photoelectric encoder in Digit Control Machine Tool, increment type is selected in general position measurement, and absolute type is selected in important measurement.
In addition, the photoelectric encoder coaxially connected with servomotor is on the one hand for measuring the angular displacement of leading screw; Also can be used for Digit Velocity on the other hand, produce feedback speed signal nf.
The standardized element that the present invention uses all can be commercially, shaped piece all can carry out customized according to description with the record of accompanying drawing, the concrete connected mode of each part all adopts the conventional means such as bolt, rivet, welding ripe in prior art, machinery, part and equipment all adopt in prior art, conventional model, add that circuit connects and adopt connected mode conventional in prior art, be not described in detail in this.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the internal mechanism of a Novel numerical control machine, it is characterized in that, comprise lathe bed (1), spindle drive motor (2), main spindle box (3), main shaft (4), circular cutter holder (5), X-axis feed servo motor (6), X-axis photoelectric encoder (7), X-axis ball-screw (8), planker (9), Z axis ball-screw (10), Z axis feed servo motor (11), Z axis photoelectric encoder (12) and tailstock (13), one end, described lathe bed (1) top is provided with main spindle box (3), described main spindle box (3) is provided with main shaft (4), the side of described lathe bed (1) is provided with spindle drive motor (2), described spindle drive motor (2) is connected with main shaft (4) by driving shaft, described lathe bed (1) the top other end is connected with tailstock (13), described lathe bed (1) is connected with Z axis ball-screw (10) by axle bed, described Z axis ball-screw (10) one end is connected with Z axis feed servo motor (11) by driving shaft, described Z axis feed servo motor (11) is connected with Z axis photoelectric encoder (12), described lathe bed (1) is slidably connected by Z axis ball-screw (10) and is provided with planker (9), described planker (9) top spiral is connected with circular cutter holder (5), described planker (9) is provided with X-axis ball-screw (8), described X-axis ball-screw (8) is connected with X-axis feed servo motor (6), described X-axis feed servo motor (6) is connected with X-axis photoelectric encoder (7), (1) is provided with numerical control box and servo drive with described lathe bed.
2. the internal mechanism of a kind of Novel numerical control machine according to claim 1, it is characterized in that, described numerical control box inside is provided with digital control system, described digital control system is connected with servo drive by convert information circuit, and described servo drive is connected with Z axis feed servo motor (11) with X-axis feed servo motor (6) respectively by holding wire.
3. the internal mechanism of a kind of Novel numerical control machine according to claim 1, is characterized in that, (1) is provided with position detecting device with described lathe bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203967.4A CN104842205A (en) | 2015-04-27 | 2015-04-27 | Inner mechanism of novel numerical control machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203967.4A CN104842205A (en) | 2015-04-27 | 2015-04-27 | Inner mechanism of novel numerical control machine tool |
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| CN104842205A true CN104842205A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510203967.4A Pending CN104842205A (en) | 2015-04-27 | 2015-04-27 | Inner mechanism of novel numerical control machine tool |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0742504A2 (en) * | 1995-05-11 | 1996-11-13 | Siemens Aktiengesellschaft | Numerical control device for a machine-tool or a robot |
| CN2640698Y (en) * | 2003-09-05 | 2004-09-15 | 广州数控设备厂 | Fast digital control improving structure of normal lathe |
| CN204725206U (en) * | 2015-04-27 | 2015-10-28 | 浙江诺盾过滤机械有限公司 | A kind of internal mechanism of Novel numerical control machine |
-
2015
- 2015-04-27 CN CN201510203967.4A patent/CN104842205A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0742504A2 (en) * | 1995-05-11 | 1996-11-13 | Siemens Aktiengesellschaft | Numerical control device for a machine-tool or a robot |
| CN2640698Y (en) * | 2003-09-05 | 2004-09-15 | 广州数控设备厂 | Fast digital control improving structure of normal lathe |
| CN204725206U (en) * | 2015-04-27 | 2015-10-28 | 浙江诺盾过滤机械有限公司 | A kind of internal mechanism of Novel numerical control machine |
Non-Patent Citations (2)
| Title |
|---|
| 杨琳: "《自动检测与转换技术》", 28 February 2010, 北京理工大学出版社 * |
| 王先逵: "《机床数字控制技术手册》", 30 October 2013, 国防工业出版社 * |
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Application publication date: 20150819 |