阅读说明：本技术 一种利用激光测量管材长度的方法及装置 (method and device for measuring length of pipe by using laser ) 是由 罗盛华 吴仁杰 罗锡阳 于 2019-08-20 设计创作，主要内容包括：本发明公开了一种利用激光测量管材长度的方法,通过检测到管材测量平台的传送槽位的前端有管材时,启动传送槽位的传送带,将管材往传送槽位的末端传送,当管材的末端离开设置在传送槽位上某一位置的光电开关时,生成第一信号,同时停止传送带的转动,根据第一信号触发设置在传送槽位末端的激光测距仪开始测距,得到激光测距仪到管材横切面的第一距离,最后根据激光测距仪到光电开关的固定距离和第一距离,得到管材的长度,采用本发明提供的实施例,能够节省人力成本、减少管材测量时造成的误差。(the invention discloses a method for measuring the length of a pipe by using laser, which comprises the steps of starting a conveying belt of a conveying groove when the front end of the conveying groove of a pipe measuring platform is detected to have the pipe, conveying the pipe to the tail end of the conveying groove, generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, stopping the rotation of the conveying belt, triggering a laser range finder arranged at the tail end of the conveying groove to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe, and finally obtaining the length of the pipe according to the fixed distance and the first distance from the laser range finder to the photoelectric switch.)

1. A method of measuring the length of a pipe using laser light, comprising the steps of:

When a pipe is detected at the front end of a conveying slot of a pipe measuring platform, starting a conveying belt of the conveying slot, and conveying the pipe to the tail end of the conveying slot;

when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, generating a first signal and stopping the rotation of the conveying belt;

Triggering a laser range finder arranged at the tail end of the conveying slot position to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe;

And obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.

2. The method for measuring the length of the pipe by using the laser according to claim 1, wherein when the pipe is detected at the front end of the conveying slot of the pipe measuring platform, the conveying belt of the conveying slot is started to convey the pipe to the tail end of the conveying slot, specifically:

a pipe measuring platform is arranged at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line, so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;

when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, a sensor arranged at the front end of the conveying slot position is triggered, a control signal is generated to control a conveying belt on the conveying slot position to start rotating, and the pipe is conveyed to the tail end of the conveying slot position.

3. the method for measuring the length of the pipe by using the laser according to claim 2, wherein the length of the pipe is obtained according to the fixed distance from the laser range finder to the photoelectric switch and the first distance, and specifically comprises:

Placing a baffle at the position of the photoelectric switch, and ranging by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;

And subtracting the first distance from the fixed distance to obtain the length of the pipe.

4. an apparatus for measuring length of a pipe using laser, comprising: the device comprises a detection module, a signal generation module, a distance measurement module and a pipe length generation module;

the detection module is used for starting the conveying belt of the conveying groove position and conveying the pipe to the tail end of the conveying groove position when the pipe is detected to be arranged at the front end of the conveying groove position of the pipe measuring platform;

The signal generating module is used for generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot position, and simultaneously stopping the rotation of the conveying belt;

the distance measuring module is used for triggering a laser distance measuring instrument arranged at the tail end of the conveying slot position to start distance measurement according to the first signal to obtain a first distance from the laser distance measuring instrument to the cross section of the pipe;

the pipe length generating module is used for obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.

5. The apparatus for laser gauging of pipe length as claimed in claim 4 wherein said sensing module comprises a docking unit and a triggering unit;

the butt joint unit is used for installing a pipe measuring platform at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;

and the triggering unit is used for triggering a sensor arranged at the front end of the conveying slot position when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, generating a control signal to control a conveying belt on the conveying slot position to start rotating and conveying the pipe to the tail end of the conveying slot position.

6. The apparatus for measuring length of pipe using laser according to claim 5, wherein the pipe length generating module comprises a fixed length measuring unit and a pipe length measuring unit;

The fixed length measuring unit is used for placing a baffle at the position of the photoelectric switch, and measuring the distance by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;

and the pipe length measuring unit is used for subtracting the first distance from the fixed distance to obtain the length of the pipe.

Technical Field

the invention relates to the technical field of measurement, in particular to a method and a device for measuring the length of a pipe by using laser.

Background

at present, a production factory mainly measures the length of a pipe by manually using a steel tape, a large amount of manpower and material resources are consumed, certain errors can also occur in the result of manual measurement, and larger errors can be caused to later data processing and registration if the error occurs in the measurement result.

therefore, a method for measuring the length of the pipe with lower cost and higher precision is urgently needed in a factory at present, and working errors are avoided.

disclosure of Invention

the embodiment of the invention aims to provide a method for measuring the length of a pipe by using laser, which can save labor cost and reduce errors caused by pipe measurement.

In order to achieve the above object, an embodiment of the present invention provides a method for measuring a length of a pipe by using a laser, including the following steps:

When a pipe is detected at the front end of a conveying slot of a pipe measuring platform, starting a conveying belt of the conveying slot, and conveying the pipe to the tail end of the conveying slot;

When the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, generating a first signal and stopping the rotation of the conveying belt;

Triggering a laser range finder arranged at the tail end of the conveying slot position to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe;

and obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.

Further, when detecting that there is tubular product at the front end of the conveying trench of the tubular product measuring platform, start the conveyer belt of the conveying trench, will tubular product toward the terminal conveying of conveying trench specifically is:

a pipe measuring platform is arranged at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line, so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;

When the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, a sensor arranged at the front end of the conveying slot position is triggered, a control signal is generated to control a conveying belt on the conveying slot position to start rotating, and the pipe is conveyed to the tail end of the conveying slot position.

Further, the length of the pipe is obtained according to the fixed distance from the laser range finder to the photoelectric switch and the first distance, and specifically comprises the following steps:

Placing a baffle at the position of the photoelectric switch, and ranging by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;

And subtracting the first distance from the fixed distance to obtain the length of the pipe.

As a preferred embodiment of the present invention, there is also provided a device for measuring a length of a pipe using laser, including: the device comprises a detection module, a signal generation module, a distance measurement module and a pipe length generation module;

The detection module is used for starting the conveying belt of the conveying groove position and conveying the pipe to the tail end of the conveying groove position when the pipe is detected to be arranged at the front end of the conveying groove position of the pipe measuring platform;

The signal generating module is used for generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot position, and simultaneously stopping the rotation of the conveying belt;

The distance measuring module is used for triggering a laser distance measuring instrument arranged at the tail end of the conveying slot position to start distance measurement according to the first signal to obtain a first distance from the laser distance measuring instrument to the cross section of the pipe;

The pipe length generating module is used for obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.

Further, the detection module comprises a docking unit and a triggering unit;

The butt joint unit is used for installing a pipe measuring platform at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform;

And the triggering unit is used for triggering a sensor arranged at the front end of the conveying slot position when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, generating a control signal to control a conveying belt on the conveying slot position to start rotating and conveying the pipe to the tail end of the conveying slot position.

further, the pipe length generating module comprises a fixed length measuring unit and a pipe length measuring unit;

the fixed length measuring unit is used for placing a baffle at the position of the photoelectric switch, and measuring the distance by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch;

and the pipe length measuring unit is used for subtracting the first distance from the fixed distance to obtain the length of the pipe.

the invention provides a method for measuring the length of a pipe by using laser, which comprises the steps of starting a conveying belt of a conveying groove when the front end of the conveying groove of a pipe measuring platform is detected to have the pipe, conveying the pipe to the tail end of the conveying groove, generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, stopping the rotation of the conveying belt, triggering a laser range finder arranged at the tail end of the conveying groove to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe, and finally obtaining the length of the pipe according to the fixed distance and the first distance from the laser range finder to the photoelectric switch.

Drawings

FIG. 1 is a schematic flow chart of one embodiment of a method of measuring a length of a pipe using laser light provided by the present invention;

FIG. 2 is a schematic diagram of the operation of one embodiment of the method of the present invention for measuring the length of pipe using laser light;

fig. 3 is a schematic structural diagram of an embodiment of the device for measuring the length of the pipe by using laser provided by the invention.

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.

referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a method for measuring a length of a pipe by using laser according to the present invention. As shown in fig. 1, the authentication method includes steps S1 to S4, which are as follows:

And S1, when the front end of the conveying slot of the pipe measuring platform is detected to have a pipe, starting the conveying belt of the conveying slot, and conveying the pipe to the tail end of the conveying slot.

in this embodiment, step S1 specifically includes: a pipe measuring platform is arranged at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line, so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform; when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, a sensor arranged at the front end of the conveying slot position is triggered, a control signal is generated to control a conveying belt on the conveying slot position to start rotating, and the pipe is conveyed to the tail end of the conveying slot position.

in this embodiment, the sensor can respond to whether have tubular product in the conveying trench to make the machine begin to measure automatically, saved a large amount of manpower resources.

And S2, when the tail end of the pipe leaves the photoelectric switch arranged at a certain position on the conveying slot, generating a first signal and stopping the rotation of the conveying belt.

in this embodiment, photoelectric switch can be according to the length of tubular product, and the setting of trying to get is in the place nearer from the production line end, and the faster length information who obtains tubular product of being convenient for improves work efficiency.

and S3, triggering a laser distance meter arranged at the tail end of the conveying slot position to start distance measurement according to the first signal, and obtaining a first distance from the laser distance meter to the cross section of the pipe.

and S4, obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.

In this embodiment, step S4 specifically includes: placing a baffle at the position of the photoelectric switch, and ranging by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch; and subtracting the first distance from the fixed distance to obtain the length of the pipe.

Referring to fig. 2, in order to better illustrate the working principle of the method of the present invention, the following steps are the steps of the method of measuring the length of the pipe using laser according to the present invention: at first, install tubular product length measuring platform at the production line end, at a front end installation photoelectric sensor, at terminal installation laser range finder, along with tubular product constantly advances towards the platform end, when tubular product end reachs photoelectric sensor and leaves, the system received the signal, then triggers laser range finder and carries out the range finding, utilize fixed distance L between photoelectric sensor and the laser range finder, again with laser range finder measure to the tubular product cross section apart from distance L1, just can obtain tubular product length L2.

the method for measuring the length of the pipe by using the laser comprises the steps of starting a conveying belt of a conveying groove when the front end of the conveying groove of a pipe measuring platform is detected to be provided with the pipe, conveying the pipe to the tail end of the conveying groove, generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying groove, stopping the rotation of the conveying belt, triggering a laser range finder arranged at the tail end of the conveying groove to start ranging according to the first signal to obtain a first distance from the laser range finder to the cross section of the pipe, and finally obtaining the length of the pipe according to the fixed distance and the first distance from the laser range finder to the photoelectric switch.

referring to fig. 3, as a preferred embodiment of the present invention, the present invention further provides a device for measuring a length of a pipe using laser, including: the device comprises a detection module, a signal generation module, a distance measurement module and a pipe length generation module;

the detection module is used for starting the conveying belt of the conveying groove position and conveying the pipe to the tail end of the conveying groove position when the pipe is detected to be arranged at the front end of the conveying groove position of the pipe measuring platform; the signal generating module is used for generating a first signal when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot position, and simultaneously stopping the rotation of the conveying belt; the distance measuring module is used for triggering a laser distance measuring instrument arranged at the tail end of the conveying slot position to start distance measurement according to the first signal to obtain a first distance from the laser distance measuring instrument to the cross section of the pipe; the pipe length generating module is used for obtaining the length of the pipe according to the fixed distance from the laser range finder to the photoelectric switch and the first distance.

In this embodiment, the detection module includes a docking unit and a triggering unit;

The butt joint unit is used for installing a pipe measuring platform at the tail end of a production line, and the front end of a conveying groove of the pipe measuring platform is horizontally connected with a conveying belt at the tail end of the production line so that a pipe is horizontally conveyed from the conveying belt at the tail end of the production line to the conveying belt of the pipe measuring platform; and the triggering unit is used for triggering a sensor arranged at the front end of the conveying slot position when the pipe is completely conveyed to the conveying slot position of the pipe measuring platform, generating a control signal to control a conveying belt on the conveying slot position to start rotating and conveying the pipe to the tail end of the conveying slot position.

in this embodiment, the tube length generating module includes a fixed length measuring unit and a tube length measuring unit;

the fixed length measuring unit is used for placing a baffle at the position of the photoelectric switch, and measuring the distance by the laser range finder to obtain the fixed distance from the laser range finder to the photoelectric switch; and the pipe length measuring unit is used for subtracting the first distance from the fixed distance to obtain the length of the pipe.

the invention provides a device for measuring the length of a pipe by using laser, which comprises: the pipe length measuring device comprises a detection module, a signal generating module, a distance measuring module and a pipe length generating module, wherein when the detection module detects that a pipe is arranged at the front end of a conveying slot of a pipe measuring platform, a conveying belt of the conveying slot is started, the pipe is conveyed to the tail end of the conveying slot, when the tail end of the pipe leaves a photoelectric switch arranged at a certain position on the conveying slot, the signal generating module generates a first signal and stops the rotation of the conveying belt, a laser distance meter arranged at the tail end of the conveying slot is triggered to start distance measurement according to the first signal by the distance measuring module to obtain a first distance from the laser distance meter to the cross section of the pipe, and the pipe length generating module obtains the length of the pipe according to the fixed distance from the laser distance meter to the photoelectric switch and the first distance by adopting the embodiment provided by the invention, the labor cost can be saved, and the error caused by pipe measurement can be reduced.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

while the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.