CN215035936U - Real-time online monitoring device for workpiece of numerical control machine tool - Google Patents
Real-time online monitoring device for workpiece of numerical control machine tool Download PDFInfo
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- CN215035936U CN215035936U CN202121511211.3U CN202121511211U CN215035936U CN 215035936 U CN215035936 U CN 215035936U CN 202121511211 U CN202121511211 U CN 202121511211U CN 215035936 U CN215035936 U CN 215035936U
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Abstract
The utility model discloses a real-time on-line monitoring device of digit control machine tool work piece belongs to machine tool equipment technical field. The sensor mounting seat is fixedly connected with the transition disc through screws, the laser sensor is mounted on the sensor mounting seat, a movable joint is arranged at the end part of a data transmission cable of the laser sensor, the transition disc is fixedly connected with the transverse and longitudinal displacement adjusting device through a taper shank blind rivet on the upper part of the transition disc, the fixed joint is mounted on the lower end face of the transverse and longitudinal displacement adjusting device, the movable joint is connected with the fixed joint, the data transmission cable connected with the tail end of the fixed joint is connected with an upper computer, the transverse and longitudinal displacement adjusting device is located on the left side of a workpiece on a machine tool workbench, a cutter is located on the right side of the workpiece on the machine tool workbench, the transverse and longitudinal displacement adjusting device controls the laser sensor to be in a non-contact state with the workpiece, the laser sensor measures displacement values between the laser sensor and the surface of the workpiece on line in real time in a cutting state of the machine tool, and calculates measured data through the upper computer to obtain precision data such as various errors of the workpiece.
Description
Technical Field
The utility model relates to a real-time on-line monitoring device of digit control machine tool work piece belongs to machine tool equipment technical field.
Background
Due to the characteristics of large size and large load, a large removal amount is often generated when a large workpiece is machined, and the error amount of the workpiece is increased in a large scale range. At present, workpiece precision measurement of a numerical control machine tool can only be stopped for on-site detection after certain procedures are finished, or the workpiece precision measurement is carried out by moving the workpiece to a special detection platform, so that the machining efficiency is seriously influenced. Because the existing measurement means all adopt a contact measurement mode, real-time online measurement of the numerical control machine tool during working can not be realized, the development of the real-time precision compensation technology of the numerical control machine tool is restricted, and the further improvement of the machining precision of the numerical control machine tool is restricted.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the prior art, the utility model provides a real-time online monitoring device for the workpiece of a numerical control machine tool. The device is in a non-contact state with a workpiece, the displacement value between the device and the surface of the workpiece is measured in real time on line, the measured data is transmitted to an upper computer through a data transmission cable, the detected parameters are utilized, the data is resolved by the upper computer, and the precision data such as the geometric dimension precision, the roundness error, the cylindricity error, the workpiece installation eccentricity, the machine tool spindle rotation error and the like of the workpiece can be obtained.
The utility model provides a technical scheme that its technical problem adopted is: a real-time online monitoring device for a workpiece of a numerical control machine tool comprises a laser sensor, a sensor mounting seat, a transition disc, a screw, a movable joint, a fixed joint, a data transmission cable and a transverse and longitudinal displacement adjusting device, wherein the sensor mounting seat is fixedly connected with the transition disc through the screw, the laser sensor is arranged on the sensor mounting seat, the end part of the data transmission cable of the laser sensor is provided with the movable joint which can follow the sensor mounting seat, the transition disc is fixedly connected with the transverse and longitudinal displacement adjusting device through a taper shank pull nail at the upper part of the transition disc, the fixed joint is arranged at the lower end surface of the transverse and longitudinal displacement adjusting device and is connected with the fixed joint, the data transmission cable connected with the tail end of the fixed joint is connected with an upper computer, the transverse and longitudinal displacement adjusting device is a left numerical control tool rest, the taper shank at the upper part of the transition disc can be accurately positioned at an inner taper hole of the left numerical control tool rest, the left numerical control tool rest is accurately controlled by a numerical control machine tool, the left numerical control tool rest is positioned on the left side of a workpiece on a machine tool workbench, the right numerical control tool rest is positioned on the right side of the workpiece on the machine tool workbench, a cutter is arranged on the right numerical control tool rest and used for cutting, the left numerical control tool rest controls a laser sensor to be in a non-contact state with the workpiece, the detection position of the laser sensor is determined and used for real-time monitoring, and when monitoring is not needed, a transition disc can be directly dismounted, the cutter is replaced and the double-cutter machining is carried out.
When the numerical control machine tool works, the machine tool workbench drives the workpiece to rotate, the cutter cuts the workpiece, the laser sensor and the workpiece are in a non-contact state, the displacement value between the laser sensor and the surface of the workpiece is measured on line in real time in the working state of the numerical control machine tool, the measured data are transmitted to an upper computer through a data transmission cable, and the upper computer calculates the data, so that the precision data such as the geometric dimension precision, the roundness error, the cylindricity error, the workpiece installation eccentricity, the machine tool spindle rotation error and the like of the workpiece can be obtained.
When the height of the workpiece changes, the laser sensor, the sensor mounting seat and other components are driven to move in the vertical direction through the transverse and longitudinal displacement adjusting device, so that the laser sensor is ensured to be accurately positioned in the vertical direction, and the change measurement in the height direction of the workpiece is realized. When the diameter of the workpiece changes, the transverse and longitudinal displacement adjusting device drives components such as the laser sensor and the sensor mounting seat to move in the horizontal direction, so that the laser sensor is ensured to be accurately positioned in the horizontal direction, and the change measurement of the diameter direction of the workpiece is realized.
Furthermore, when the machine tool is a single-tool-rest machine tool, the transverse-longitudinal displacement adjusting device consists of a transverse rod, a longitudinal rod and a cross slide block, the bottom end of the longitudinal rod is fixedly supported on the ground, the cross slide block can vertically move on the longitudinal rod, the transverse rod can horizontally move relative to the cross slide block, a locking screw for locking the vertical movement and the horizontal movement is arranged on the cross slide block, a sensor mounting seat is combined at the end part of the transverse rod, a fixed joint is arranged on the slide block, a data transmission cable connected with the tail end of the fixed joint is led out from the lower part of the longitudinal rod and is connected with an upper computer, the height is controlled by adjusting the position of the cross slide block on the longitudinal rod, the laser sensor and a workpiece are kept in a non-contact state at a certain distance by adjusting the extending length of the transverse rod, real-time monitoring is carried out, the laser sensor and is kept in an opposite plane with a cutter of the single-tool-rest machine tool by taking the workpiece as the center to avoid turning process, high-temperature erosion caused by scrap iron and iron slag protects the normal operation of the sensor, avoids vibration in the process of cutting at the cutter and improves the measurement precision.
The utility model has the advantages that: the device fully considers the factors of bias error, rotation error and the like in a numerical control machine processing system, combines a laser sensor with the numerical control machine, when the numerical control machine works, a machine tool workbench drives a workpiece to rotate, a numerical control tool rest cuts the workpiece, the laser sensor and the workpiece are in a non-contact state and are positioned at the opposite side of a cutter, high-temperature erosion caused by scrap iron and iron slag in the turning process is avoided, the normal operation of the sensor is protected, vibration in the cutting process at the cutter is avoided, the measurement precision is improved, the real-time online monitoring function of the workpiece in the working state of the numerical control machine is realized, and the measurement data is transmitted to an upper computer through a data transmission cable, by utilizing the detected parameters and resolving data through an upper computer, the precision data such as the geometric dimension precision, the roundness error, the cylindricity error, the workpiece installation eccentricity, the machine tool spindle rotation error and the like of the workpiece can be obtained, and a foundation is laid for the real-time precision compensation technology of the numerical control machine.
The utility model discloses be affiliated to black dragon river province science and technology planning province institute science and technology cooperation project "intelligent machine tool work piece real-time on-line monitoring technical research", the project serial number: YS19a 15.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention installed on a double-tool-holder lathe.
Reference numbers in the figures:
1. the device comprises a laser sensor, 2, a sensor mounting seat, 3, a transition disc, 4, a screw, 5, a movable joint, 6, a fixed joint, 7, a data transmission cable, 8 of a left numerical control tool rest, 9 of a right numerical control tool rest, 10 of a machine tool workbench, 11 and a workpiece.
Detailed Description
As shown in fig. 1-2, a real-time online monitoring device for a workpiece of a numerical control machine tool comprises a laser sensor 1, a sensor mounting seat 2, a transition disc 3, a screw 4, a movable joint 5, a fixed joint 6, a data transmission cable 7 and a transverse and longitudinal displacement adjusting device, wherein the sensor mounting seat 2 is fixedly connected with the transition disc 3 through the screw 4, the laser sensor 1 is mounted on the sensor mounting seat 2, the end of the data transmission cable 7 of the laser sensor 1 is provided with the movable joint 5, the movable joint 5 can follow the sensor mounting seat 2, the transition disc 3 is fixedly connected with the transverse and longitudinal displacement adjusting device through a taper shank pull nail at the upper part of the transition disc, the fixed joint 6 is mounted on the lower end surface of the transverse and longitudinal displacement adjusting device, the movable joint 5 is connected with the fixed joint 6, the data transmission cable 7 connected with the tail end of the fixed joint 6 is connected with an upper computer, the transverse and longitudinal displacement adjusting device is a left numerical control tool rest 8, the taper shank on 3 upper portions of transition dish can be in the accurate positioning of left numerical control knife rest 8's interior taper hole department, and by firm take-up, fixed joint 6 is installed terminal surface under left numerical control knife rest 8, fixed joint 6 trailing end connection's data transmission cable 7 is located the passageway in left numerical control knife rest 8, and with the host computer connection, left side numerical control knife rest 8 is by the accurate control of digit control machine tool, left side numerical control knife rest 8 is located the left side of work piece 11 on machine tool workstation 10, right side numerical control knife rest 9 is located the right side of work piece 11 on machine tool workstation 10, install the cutter on the right side numerical control knife rest 9, be used for the cutting, left side numerical control knife rest 8 controls laser sensor 1 and work piece 11 and keeps non-contact state, and confirm laser sensor 1's detection position, be used for real-time monitoring, when need not to monitor, can directly dismantle transition dish 3, change the cutter, be used for double-pole processing.
When the numerical control machine tool works, the machine tool workbench 10 drives the workpiece 11 to rotate, the cutter cuts the workpiece 11, the laser sensor 1 and the workpiece 11 are kept in a non-contact state, the displacement value between the laser sensor and the surface of the workpiece 11 is measured on line in real time in the working state of the numerical control machine tool, the measured data are transmitted to an upper computer through a data transmission cable 7, the upper computer calculates the data, and the precision data such as the geometric dimension precision, the roundness error, the cylindricity error, the workpiece installation eccentricity, the machine tool spindle rotation error and the like of the workpiece can be obtained.
When the height of the workpiece 11 changes, the laser sensor 1, the sensor mounting seat 2 and other components are driven to move in the vertical direction through the transverse and longitudinal displacement adjusting device, so that the laser sensor 1 is ensured to be accurately positioned in the vertical direction, and the change measurement of the height direction of the workpiece 11 is realized. When the diameter of the workpiece 11 changes, the transverse and longitudinal displacement adjusting device drives the laser sensor 1, the sensor mounting seat 2 and other components to move in the horizontal direction, so that the laser sensor 1 is ensured to be accurately positioned in the horizontal direction, and the change measurement of the diameter of the workpiece 11 is realized.
Further, when the machine tool is a single-tool-rest machine tool, the transverse-longitudinal displacement adjusting device consists of a transverse rod, a longitudinal rod and a cross slide block, the bottom end of the longitudinal rod is fixedly supported on the ground, the cross slide block can vertically move on the longitudinal rod, the transverse rod can horizontally move relative to the cross slide block, a locking screw for locking the vertical movement and the horizontal movement is arranged on the cross slide block, a sensor mounting seat 2 is combined at the end part of the transverse rod, a fixed joint 6 is arranged on the slide block, a data transmission cable 7 connected with the tail end of the fixed joint 6 is led out from the lower part of the longitudinal rod and is connected with an upper computer, the height is controlled by adjusting the position of the cross slide block on the longitudinal rod, the laser sensor 1 and the workpiece 11 are kept in a non-contact state at a certain distance by adjusting the extending length of the transverse rod, real-time monitoring is carried out, and the laser sensor 1 and the cutter of the single-tool-rest machine tool are kept in an opposite plane by taking the workpiece 11 as the center, high-temperature erosion caused by scrap iron and iron slag in the turning process is avoided, normal operation of the sensor is protected, vibration in the cutting process at the cutter is avoided, and the measurement precision is improved.
Claims (2)
1. The utility model provides a real-time on-line monitoring device of digit control machine tool work piece which characterized in that: comprises a laser sensor (1), a sensor mounting seat (2), a transition disc (3), a screw (4), a movable joint (5), a fixed joint (6), a data transmission cable (7) and a transverse and longitudinal displacement adjusting device, wherein the sensor mounting seat (2) is fixedly connected with the transition disc (3) through the screw (4), the laser sensor (1) is arranged on the sensor mounting seat (2), the movable joint (5) is arranged at the end part of the data transmission cable (7) of the laser sensor (1), the movable joint (5) can follow the sensor mounting seat (2), the transition disc (3) is fixedly connected with the transverse and longitudinal displacement adjusting device through a taper shank rivet at the upper part of the transition disc, the fixed joint (6) is arranged at the lower end surface of the transverse and longitudinal displacement adjusting device, the movable joint (5) is connected with the fixed joint (6), the data transmission cable (7) connected with the tail end of the fixed joint (6) is connected with an upper computer, the utility model discloses a horizontal displacement adjusting device, including left numerical control knife rest (8), the taper shank on transition dish (3) upper portion can be in the interior taper hole department accurate positioning of left numerical control knife rest (8), and firmly taut, the terminal surface under left numerical control knife rest (8) is installed in fixed joint (6), fixed joint (6) trailing end connection's data transmission cable (7) are located the passageway in left numerical control knife rest (8), and with the host computer connection, left side numerical control knife rest (8) are by numerical control machine tool accurate control, left side numerical control knife rest (8) are located the left side of work piece (11) on lathe workstation (10), right side numerical control knife rest (9) are located work bed (10) and go up the right side of work piece (11), install the cutter on right side numerical control knife rest (9), left side numerical control knife rest (8) control laser sensor (1) and work piece (11) keep the non-contact state.
2. The real-time online workpiece monitoring device for the numerical control machine tool as claimed in claim 1, wherein: when the machine tool is a single-tool-rest machine tool, the transverse-longitudinal displacement adjusting device consists of a transverse rod, a longitudinal rod and a cross slide block, the bottom end of the longitudinal rod is fixedly supported on the ground, the cross slide block can vertically move on the longitudinal rod, the transverse rod can horizontally move relative to the cross slide block, a locking screw for locking the vertical movement and the horizontal movement is arranged on the cross slide block, a sensor mounting seat (2) is combined at the end part of the transverse rod, a fixed joint (6) is installed on the slide block, a data transmission cable (7) connected with the tail end of the fixed joint (6) is led out from the lower part of the longitudinal rod and is connected with an upper computer, and a laser sensor (1) is kept opposite to a cutter of the single-tool-rest machine tool by taking a workpiece (11) as a center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121511211.3U CN215035936U (en) | 2021-07-05 | 2021-07-05 | Real-time online monitoring device for workpiece of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121511211.3U CN215035936U (en) | 2021-07-05 | 2021-07-05 | Real-time online monitoring device for workpiece of numerical control machine tool |
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| Publication Number | Publication Date |
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| CN215035936U true CN215035936U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121511211.3U Active CN215035936U (en) | 2021-07-05 | 2021-07-05 | Real-time online monitoring device for workpiece of numerical control machine tool |
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| CN (1) | CN215035936U (en) |
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2021
- 2021-07-05 CN CN202121511211.3U patent/CN215035936U/en active Active
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