CN210119211U - Workpiece two-dimensional size online detection device - Google Patents
Workpiece two-dimensional size online detection device Download PDFInfo
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- CN210119211U CN210119211U CN201920747769.8U CN201920747769U CN210119211U CN 210119211 U CN210119211 U CN 210119211U CN 201920747769 U CN201920747769 U CN 201920747769U CN 210119211 U CN210119211 U CN 210119211U
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Abstract
The utility model relates to a workpiece two-dimensional size on-line detection device, which belongs to the technical field of surface detection and comprises a power module, a control drive module, a transmission module and a detection module, wherein the control drive module comprises a PLC programmable controller, a stepping motor driver and a stepping motor, the transmission module comprises a vertically arranged ball screw and a slide block matched with the ball screw, the detection module comprises a laser range finder and an incremental encoder, an output shaft of the stepping motor is connected with the upper end of the ball screw through a coupler, the lower end of the ball screw is connected with the incremental encoder, the incremental encoder converts the measured angular displacement into a high-speed pulse signal and directly inputs the high-speed pulse signal to the PLC programmable controller, one end of the slide block vertical to the screw is connected with the laser range finder horizontally arranged, and the output end of the laser range finder is electrically connected with the input end, the output end of the PLC is connected with a display through a line, and the PLC is simple in structure, high in measuring speed and high in precision.
Description
Technical Field
The utility model relates to a work piece two dimension on-line measuring device belongs to surface detection technical field, especially relates to a non-contact detection device that can be used to quick on-line measuring work piece size.
Background
The problem that the two-dimensional size of a part is difficult to detect on line exists in the process of machining and forming the part, for example, a metal corrugated pipe is widely used in the industries of instruments, aviation, aerospace, electric power, petroleum, chemical engineering, construction, shipbuilding, locomotives and the like, the part has axial, angular and transverse deformation capacity, stress deformation characteristic and periodic change characteristic of geometric shape, and is used for manufacturing various sensitive elements, compensation elements, flexible connecting pieces and heat exchange elements, along with the development of machining technology, the forming method of the part is continuously developed, and the main forming method at present comprises the following steps: hydraulic bulging, mechanical bulging, rubber bulging (including air tire bulging), rolling bulging, corrugated plate rolling forming and diaphragm ring welding forming; the corrugated pipe is usually formed by a hydraulic bulging method, can be formed by multiple waves at one time, can be formed by single waves or a plurality of waves in a group continuously, can be manually operated in the forming process, and can also be formed automatically.
The process mode is divided into two stages: at present, the wave crest and trough size of the metal corrugated pipe processed on site is judged by visual observation, so that the detection size precision is low, and the processing efficiency is low.
Disclosure of Invention
In order to solve the problem in the background art, the utility model discloses a work piece two dimension on-line measuring device, including power module, control drive module, transmission module and detection module, measuring speed is fast, the precision is high, is applicable to the on-line measuring, improves machining efficiency.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
an on-line detection device for two-dimensional size of a workpiece comprises a power supply module, a control driving module, a transmission module and a detection module, wherein the power supply module supplies power to the control driving module and the detection module, the control driving module comprises a PLC (programmable logic controller), a stepping motor driver and a stepping motor, the transmission module comprises a vertically arranged ball screw and a sliding block matched with the ball screw, the detection module comprises a laser range finder and an incremental encoder, the high-speed pulse output end of the PLC is electrically connected with the pulse input end of the stepping motor driver, the output end of the stepping motor driver is electrically connected with the stepping motor, the output shaft of the stepping motor is connected with the upper end of the ball screw through a coupler, the lower end of the ball screw is connected with the incremental encoder, and the incremental encoder converts measured angular displacement into a high-speed pulse signal and directly inputs the high, the ball screw is connected with a sliding block through a thread in a sliding manner, one end of the sliding block, which is perpendicular to the screw, is connected with a laser range finder horizontally arranged, the output end of the laser range finder is electrically connected with the input end of the PLC, and the output end of the PLC is connected with a display through a circuit.
Further, detection device still includes upper base, lower base, connects through the support column of vertical setting between upper base, the lower base, and step motor sets up on the upper base, and ball sets up between upper base, the lower base, and the correspondence is equipped with the bearing between ball's upper end and the upper base.
Furthermore, a steel frame is arranged on the lower base, the steel frame is of a rectangular frame structure, a bearing is arranged at the top of the steel frame, and the lower end part of the ball screw penetrates through an inner ring of the bearing and then is connected with the incremental encoder.
Furthermore, be provided with the guide rail parallel with ball on the support column, be provided with the gyro wheel on the slider, gyro wheel and guide rail sliding connection are equipped with the draw-in groove in one side that the gyro wheel was kept away from to the slider, and laser range finder leads to the draw-in groove and can dismantle with the slider and be connected.
Further, a hub is arranged at the bottom of the lower base.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a PLC programmable controller, the step motor driver, step motor, ball, with ball matched with slider, laser range finder and incremental encoder, can detect out large-scale work piece surface shape size of a dimension and shape curve, in the testing process, PLC programmable controller can carry out position control, laser range finder accuracy of measurement is high, measurement accuracy has been improved, be favorable to the accurate position of finding the work piece local surface that will measure, improve measurement of efficiency, this device bottom is provided with wheel hub device and can removes, thereby satisfy the measurement needs of different size work piece sizes, it is low to solve present machining efficiency, the work piece surface size can't carry out the accurate control scheduling problem.
2. The utility model discloses a control drive module, transmission module and detection module, realize the device's automatic measurement and data processing, measuring speed is fast, is applicable to the on-line measuring.
Drawings
FIG. 1 is a schematic view of the mechanical system of the present invention;
FIG. 2 is a control flow diagram of the present invention;
FIG. 3 is a two-dimensional graph of the local surface of the workpiece according to the present invention;
in the above figures: 1-a step motor; 2-an upper base; 3-ball screw; 4-a roller; 5-a slide block; 6-laser range finder; 7-a guide rail; 8-incremental encoder; 9-steel frame; 10-a support column; 11-a lower base; 12-a hub; 13-the workpiece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1-3, in the embodiment of the present invention, an online detection apparatus for two-dimensional size of a workpiece includes a power module, a control driving module, a transmission module and a detection module, the power module provides power to the control driving module and the detection module, the control driving module includes a PLC programmable controller, a stepping motor driver and a stepping motor 1, the transmission module includes a vertically disposed ball screw 3 and a slider 5 matched with the ball screw 3, the detection module includes a laser range finder 6 and an incremental encoder 8, a high-speed pulse output end of the PLC programmable controller is electrically connected with a pulse input end of the stepping motor driver, an output end of the stepping motor driver is electrically connected with the stepping motor 1, an output shaft of the stepping motor 1 is connected with an upper end of the ball screw 3 through a coupler, a lower end of the ball screw 3 is connected with the incremental encoder 8, the incremental encoder 8 converts the measured angular displacement into a high-speed pulse signal and directly inputs the high-speed pulse signal to the PLC, the ball screw 3 is connected with a sliding block 5 through thread sliding, one end, perpendicular to the screw, of the sliding block 5 is connected with a laser range finder 6 which is horizontally arranged, the output end of the laser range finder 6 is electrically connected with the input end of the PLC, the output end of the PLC is connected with a display through a circuit, the PLC adopts Siemens PLC, and the model is S7-300.
The detection device further comprises an upper base 2 and a lower base 11, the upper base 2 and the lower base 11 are connected through a support column 10 in a vertical arrangement, the stepping motor 1 is arranged on the upper base 2, the ball screw 3 is arranged between the upper base 2 and the lower base 11, and a rotating bearing is correspondingly arranged between the upper end of the ball screw 3 and the upper base 2.
A steel frame 9 is arranged on the lower base 11, the steel frame 9 is of a rectangular frame structure, a bearing is arranged at the top of the steel frame 9, and the lower end part of the ball screw 3 penetrates through an inner ring of the bearing and then is connected with the incremental encoder 8.
A guide rail 7 parallel to the ball screw 3 is arranged on a support column 10, a roller 4 is arranged on the slider 5, the roller 4 is connected with the guide rail 7 in a sliding way, the guide rail 7 guides the slider 5 to move and reduce friction, a clamping groove is arranged on one side of the slider 5 far away from the roller 4, a laser range finder 6 is detachably connected with the slider 5 through the clamping groove, a stepping motor 1 drives the ball screw 3 to rotate, an incremental encoder 8 connected with the other end of the ball screw 3 directly converts the measured angular displacement into a digital signal (a high-speed pulse signal) and directly inputs the digital signal to a PLC programmable controller, a high-speed counter of the PLC is used for counting pulse signals, thus the position and the moving speed of the slider 5 are fed back to obtain a vertical direction distance Y, namely a local vertical distance of the surface of a workpiece, the ball screw 3 drives the slider 5 and the laser range, the laser rangefinder 6 measures the horizontal distance X of the slide 5 to the surface of the workpiece 13.
The hub 12 is arranged at the bottom of the lower base 11, so that the device can be moved conveniently, and the measurement of workpieces with various sizes, namely the measurement of each position of the workpiece, can be met.
The working principle and the process of the invention are as follows:
combining the control flow chart of the attached figure 2 and the working curve chart of the attached figure 3, the device of the invention is used for measuring the surface appearance and the size of a workpiece 13, a PLC (programmable logic controller) sends a pulse signal to a stepping motor driver, the stepping motor driver converts an electric pulse into an angular displacement and drives the stepping motor 1 to rotate by a fixed angle according to a set direction, the stepping motor 1 drives a ball screw 3 to rotate, an incremental encoder 8 connected with the lower end of the ball screw 3 directly converts the measured angular displacement into a digital signal (a high-speed pulse signal) and directly inputs the digital signal into the PLC, a high-speed counter of the PLC is used for counting the pulse signal, thereby the position and the moving speed of a slide block 5 are fed back, a vertical direction distance Y, namely the vertical distance between local positions of the surface of the workpiece, the ball screw 3 rotates to drive the slide block 5 and a laser range finder 6 fixed on the slide block, the laser range finder 6 measures the horizontal distance X from the sliding block 5 to the surface of the workpiece 13, the PLC carries out acquisition and recording on the measured data, and the two-dimensional shape curve of the local surface of the workpiece is displayed in the display.
Taking a metal corrugated pipe as an example, taking a certain point of the metal corrugated pipe as a measurement starting point, sending a pulse signal to a stepping motor driver by a PLC (programmable logic controller), driving a motor 1 to rotate by a fixed angle according to a set direction by the stepping motor driver, driving a ball screw 3 to rotate by the stepping motor 1, directly converting the measured angular displacement into a digital signal (a high-speed pulse signal) by an incremental encoder 8, directly inputting the digital signal to the PLC, counting the pulse signal by the PLC, feeding back the position and the moving speed of a slide block 5 to obtain a vertical direction distance Y, namely the vertical direction distance Y between the measurement point and the starting point, driving the slide block 5 and a laser range finder 6 to move in the vertical direction by the rotation of the ball screw 3, measuring the horizontal distance X from the slide block 5 to the surface of the metal corrugated pipe by the laser range finder 6, and collecting and recording the measured data by the PLC, the two-dimensional shape curve graph of the local surface of the metal corrugated pipe is displayed in the display, the sizes of wave crests and wave troughs of the metal corrugated pipe are clear at a glance in the two-dimensional shape curve graph, the measuring speed is high, the measuring precision is high, and the size difference delta X = X of the wave crests and the wave troughs of the metal corrugated pipe1- X2。
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of description of the present invention and for simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the present invention should not be construed as being limited thereto, and it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, as being able to be fixedly connected, detachably connected, or integrally formed, mechanically connected, or indirectly connected through an intermediate medium, and the specific meaning of the terms in the present application can be understood through specific situations.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a work piece two dimension on-line measuring device which characterized by: the device comprises a power module, a control driving module, a transmission module and a detection module, wherein the power module supplies power to the control driving module and the detection module, the control driving module comprises a PLC (programmable logic controller), a stepping motor driver and a stepping motor, the transmission module comprises a vertically arranged ball screw and a sliding block matched with the ball screw, the detection module comprises a laser range finder and an incremental encoder, the high-speed pulse output end of the PLC is electrically connected with the pulse input end of the stepping motor driver, the output end of the stepping motor driver is electrically connected with the stepping motor, the output shaft of the stepping motor is connected with the upper end of the ball screw through a coupler, the lower end of the ball screw is connected with the incremental encoder, the incremental encoder converts the measured angular displacement into a high-speed pulse signal and directly inputs the high-speed pulse signal to the PLC, and the ball screw is, the one end of slider perpendicular to lead screw is connected with the laser range finder of level setting, and the output of laser range finder is connected with PLC programmable controller's input electricity, and PLC programmable controller's output passes through the circuit and is connected with a display.
2. The on-line detection device for the two-dimensional size of the workpiece as recited in claim 1, wherein: the detection device further comprises an upper base and a lower base, the upper base and the lower base are connected through a vertically arranged support column, the stepping motor is arranged on the upper base, the ball screw is arranged between the upper base and the lower base, and a bearing is correspondingly arranged between the upper end of the ball screw and the upper base.
3. The on-line detection device for the two-dimensional size of the workpiece as recited in claim 2, wherein: the lower base is provided with a steel frame which is of a rectangular frame structure, the top of the steel frame is provided with a bearing, and the lower end part of the ball screw penetrates through the inner ring of the bearing and then is connected with the incremental encoder.
4. The on-line detection device for the two-dimensional size of the workpiece as recited in claim 2, wherein: the laser range finder comprises a support column, a ball screw, a slide block, a clamping groove, a laser range finder connecting groove and a slide block, wherein the support column is provided with a guide rail parallel to the ball screw, the slide block is provided with a roller, the roller is connected with the guide rail in a sliding manner, one side of the slide block, away from the roller, is provided with the clamping groove, and the laser.
5. The apparatus for on-line detection of two-dimensional size of workpiece according to any one of claims 2-4, wherein: the bottom of the lower base is provided with a hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747769.8U CN210119211U (en) | 2019-05-23 | 2019-05-23 | Workpiece two-dimensional size online detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920747769.8U CN210119211U (en) | 2019-05-23 | 2019-05-23 | Workpiece two-dimensional size online detection device |
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| CN210119211U true CN210119211U (en) | 2020-02-28 |
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| CN201920747769.8U Active CN210119211U (en) | 2019-05-23 | 2019-05-23 | Workpiece two-dimensional size online detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207613A (en) * | 2019-05-23 | 2019-09-06 | 中色科技股份有限公司 | A kind of workpiece two-dimensional on-line measuring device and detection method |
| CN115415410A (en) * | 2022-11-03 | 2022-12-02 | 山东鑫迈德数控设备有限公司 | Numerical control knife adjusting device for angle assembling machine |
| CN117759794A (en) * | 2024-02-22 | 2024-03-26 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
-
2019
- 2019-05-23 CN CN201920747769.8U patent/CN210119211U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207613A (en) * | 2019-05-23 | 2019-09-06 | 中色科技股份有限公司 | A kind of workpiece two-dimensional on-line measuring device and detection method |
| CN115415410A (en) * | 2022-11-03 | 2022-12-02 | 山东鑫迈德数控设备有限公司 | Numerical control knife adjusting device for angle assembling machine |
| CN117759794A (en) * | 2024-02-22 | 2024-03-26 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
| CN117759794B (en) * | 2024-02-22 | 2024-05-24 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
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