CN201511269U - Feeding control device of machine tool - Google Patents
Feeding control device of machine tool Download PDFInfo
- Publication number
- CN201511269U CN201511269U CN 200920192607 CN200920192607U CN201511269U CN 201511269 U CN201511269 U CN 201511269U CN 200920192607 CN200920192607 CN 200920192607 CN 200920192607 U CN200920192607 U CN 200920192607U CN 201511269 U CN201511269 U CN 201511269U
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- CN
- China
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- stepper motor
- plc
- feeding
- machine tool
- control device
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- Expired - Fee Related
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Abstract
The utility model relates to a feeding control device of a machine tool, which belongs to the technical field of the cutting machine tool. The existing ordinary machine tool adopts the PLC direct drive mode and has the technical problems of poor anti-interference capability, limited feeding speed and accuracy and complex operation. The feeding control device adopts the feedback type direction drive mode. In the technical scheme, a PLC is connected with a pulse generator through a wire to control the starting and stoppage of the pulse generator, the pulse generator is connected with a stepper motor driver through a wire to transmit pulse signals to the stepper motor driver, the stepper motor driver is connected with a stepper motor to drive the stepper motor to operate, the rotating shaft of the stepper motor is connected with the auxiliary screw of a screw, a feeding slide plate is arranged on a guide rail, the auxiliary slide block of the screw is fixedly connected with the feeding slide plate, the two ends of the guide rail are provided two travel switches to sense the position of the feeding slide plate, and the two travel switches are respectively connected with the PLC through wires to feedback signals to the PLC. The utility model has the advantages of high feeding speed, high accuracy and simple operation.
Description
Technical field
The utility model belongs to the stock-removing machine technical field, and is especially relevant with a kind of machine tool feed control device.
Background technology
At present, general machine tool feed control device mostly adopts the direct drive-type of PLC, comprise slide plate, guide rail, lead screw pair and stepper motor, slide plate is installed in straight line slippage on the guide rail, the slide block of lead screw pair is fixedlyed connected with slide plate, the leading screw of lead screw pair is fixedlyed connected with the stepper motor rotating shaft, and the straight line that the transmission of the rotation of stepper motor by screw pair is converted into slide plate moves; Stepper motor is connected with stepper motor driver, and stepper motor driver is connected with PLC by electric wire; When lathe carries out feed motion, PLC sends pulse and gives stepper motor driver, stepper motor drives the stepper motor rotating cycle according to the quantity of pulse, number of pulses and speed control that the feeding mobile displacement of slide plate and feed speed are sent by PLC, number of pulses and the speed data of PLC are set as requested.Such machine tool feed control device poor anti jamming capability, stepper motor is lost the step easily, causes feed accuracy to produce error, and the error that produces in the machining process on the same stage will produce accumulation, has increased error range; Because general PLC maximum impulse amount has only 20K/S, then impulse speed is smaller, makes feed speed also be restricted; Feed speed and position change by data setting, and the data setting trivial operations is made mistakes easily, cause lathe to collide; Because there is machine error in feed control device itself, but PLC can't compensate control to machine error, also just can't eliminate the machine error of feeding in moving, and has reduced feed accuracy.
The utility model content
The purpose of this utility model is exactly will solve that poor anti jamming capability, feed speed that the general machine tool feed control device of the direct drive-type of the existing PLC of employing exists are restricted, the data setting trivial operations, do not carry out the defective of error compensation, and a kind of anti-tired machine tool feed control device that interference performance is strong, feed accuracy is high, working (machining) efficiency is high, easy and simple to handle is provided.For this reason, the utility model is by the following technical solutions:
A kind of machine tool feed control device, comprise PLC, stepper motor driver, stepper motor, lead screw pair, guide rail and feed slide, stepper motor is connected with stepper motor driver, the stepper motor rotating shaft is connected with the leading screw of lead screw pair, feed slide is installed on guide rail, the slide block of lead screw pair is fixedlyed connected with feed slide, it is characterized in that: described feed control device also comprises impulse generator and first, the second two travel switches, impulse generator is connected first with PLC respectively by electric wire with stepper motor driver, the second two travel switches are arranged at the guide rail two ends respectively.
The distance of two travel switches of the utility model is decided according to feed distance.When work is advanced in the beginning feeding, at first send enabled instruction to impulse generator by PLC, impulse generator begins continual to stepper motor driver transmission pulse signal, stepper motor drives the stepper motor running according to pulse signal, motor rotation drives the leading screw rotation, the leading screw rotation drives the slide block rectilinear motion of lead screw pair, the slide block band is with the slippage of feed slide straight line, feed slide moves to the second travel switch place and triggers second travel switch, second travel switch passes through to the PLC feedback signal, PLC sends halt instruction according to feedback signal to impulse generator, and feed slide is finished the slippage of the feed distance of advancing; Finish and begin feeding after feeding is advanced and retreat; equally at first send enabled instruction to impulse generator by PLC; begin another control procedure; the feed slide slippage triggers first travel switch to the first travel switch place; PLC sends halt instruction according to feedback signal to impulse generator, and feed slide is finished the slippage that retreats feed distance.
The utility model adopts the indirect drive-type control method of feedback, have following outstanding feature and beneficial effect: 1, feeding running fix progress is controlled by travel switch, rather than control by pulse number, can avoid stepper motor to lose step and impulse disturbances, improved positioning accuracy; 2, feeding running fix is controlled by travel switch, can eliminate lead screw pair mechanically moving error, has improved positioning accuracy; 3, use special-purpose impulse generator to send pulse control feeding translational speed, not limited by the PLC impulse speed, can accelerate the feeding translational speed, improve working (machining) efficiency; 4, the impulse speed of impulse generator is regulated conversion and used potentiometer, need not to carry out numerous and diverse data setting operation, and is easy to adjust directly perceived, simple to operate, is not easy to make mistakes.
Description of drawings
Fig. 1 is the structural representation of the utility model device.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail.
As shown in Figure 1; the utility model device comprises PLC 1; impulse generator 2; stepper motor driver 3; stepper motor 4; lead screw pair 6; guide rail 5; feed slide 7; first travel switch 8 and second travel switch 9; PLC 1 is connected the startup and the shutdown of clamp-pulse generator 2 with impulse generator 2 by electric wire; impulse generator 2 is connected with stepper motor driver 3 by electric wire; impulse generator 2 stepper motor drivers 3 are connected 4 runnings of driving stepper motor with stepper motor 4; the rotating shaft of stepper motor 4 is connected with the leading screw of lead screw pair 6; the rotating band movable wire thick stick rotation of stepper motor 4; the slide block straight line that the rotation of leading screw is converted into lead screw pair 6 moves; feed slide 7 is installed on guide rail 5; the slide block of lead screw pair 6 is fixedlyed connected 7 slippages of drive feed slide with feed slide 7; first travel switch 8 and second travel switch 9 are arranged at the position of guide rail 5 two ends induction feed slide 7 respectively; first travel switch 8 is connected to PLC 1 feedback signal by electric wire respectively with second travel switch 9 with PLC 1, travel switch sent the shutdown of instruction clamp-pulse generator to the PLC feedback signal by PLC after feed slide 7 triggered travel switch.
Claims (1)
1. machine tool feed control device, comprise PLC (1), stepper motor driver (3), stepper motor (4), lead screw pair (6), guide rail (5) and feed slide (7), stepper motor (4) is connected with stepper motor driver (3), the rotating shaft of stepper motor (4) is connected with the leading screw of lead screw pair (6), feed slide (7) is installed on guide rail (5), the slide block of lead screw pair (6) is fixedlyed connected with feed slide (7), it is characterized in that: described feed control device also comprises impulse generator (2), first travel switch (8) and second travel switch (9), impulse generator (2) is connected first travel switch (8) with PLC (1) respectively by electric wire with stepper motor driver (3), second travel switch (9) is arranged at guide rail (5) two ends respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920192607 CN201511269U (en) | 2009-08-21 | 2009-08-21 | Feeding control device of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920192607 CN201511269U (en) | 2009-08-21 | 2009-08-21 | Feeding control device of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511269U true CN201511269U (en) | 2010-06-23 |
Family
ID=42482667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920192607 Expired - Fee Related CN201511269U (en) | 2009-08-21 | 2009-08-21 | Feeding control device of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511269U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909426A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Control method for converting fast feed to working feed of machine tool table |
| CN111665781A (en) * | 2020-06-23 | 2020-09-15 | 成都工具研究所有限公司 | Self-checking type motion detection control device and method |
-
2009
- 2009-08-21 CN CN 200920192607 patent/CN201511269U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909426A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Control method for converting fast feed to working feed of machine tool table |
| CN103909426B (en) * | 2013-01-09 | 2016-04-13 | 广西玉柴机器股份有限公司 | Platen F.F. is changed a job into control method |
| CN111665781A (en) * | 2020-06-23 | 2020-09-15 | 成都工具研究所有限公司 | Self-checking type motion detection control device and method |
| CN111665781B (en) * | 2020-06-23 | 2021-05-04 | 成都工具研究所有限公司 | Self-checking type motion detection control device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20180821 |