CN111805202A - Method and system for recording bolt locking position by applying data acquisition technology - Google Patents
Method and system for recording bolt locking position by applying data acquisition technology Download PDFInfo
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- CN111805202A CN111805202A CN202010872420.4A CN202010872420A CN111805202A CN 111805202 A CN111805202 A CN 111805202A CN 202010872420 A CN202010872420 A CN 202010872420A CN 111805202 A CN111805202 A CN 111805202A
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- bolt
- data acquisition
- tightening machine
- positioning device
- recording
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a method for recording a bolt locking position by applying a data acquisition technology, which comprises the following steps: s1, arranging a positioning device at the corresponding position of each bolt to be fastened; s2, arranging a trigger device capable of triggering the positioning device on the portable tightening machine; s3, triggering the positioning device after the tightening machine is in place at the position of the bolt to be fastened until the tightening machine leaves the position of the bolt to be fastened, and resetting the positioning device; and S4, combining the real-time torque information of the portable tightening machine and the trigger information of the positioning device according to a time sequence, and judging whether the locking result is qualified. Therefore, the method for recording the bolt locking position by using the data acquisition technology can correspond the torque data of the tightening machine with the on-site bolt, realizes the process tracing of the bolt position and the torque value in the bolt fastening operation, saves the time of manual recording and improves the production efficiency. The invention also discloses a system for recording the locking position of the bolt.
Description
Technical Field
The invention relates to the field of production and processing, in particular to a method and a system for recording a bolt locking position by using a data acquisition technology.
Background
Although the degree of production automation is higher and higher at present, many places still need manual operation, for example in the frame assembly link in the automobile production field, still have many bolts and need the manual work to utilize portable tightening gun to screw up the bolt.
The existing portable tightening machine provides a wide range of peripheral device support and communication interfaces, is internally provided with a large-capacity memory, and can provide historical data query of locking results. Portable rifle of screwing up has the wiFi function, can with on-the-spot network connection to communicate with the host computer, can satisfy real time control, and realize the transmission of real-time locking result and make judgement and record to the locking result: however, the current portable tightening machine can only provide torque data for each tightening, which requires an operator to manually confirm whether the tightening of the bolt is up to standard, and if the operator fails to carefully confirm the tightening, a certain bolt is not tightened, which may cause a product quality hazard.
Chinese patent CN 103786127B-discloses a method for recording bolt tightening, which takes pictures of the periphery when each bolt is tightened, and then assists in positioning the position of the tightened bolt according to the periphery environment shown on the pictures, however, the data volume of the pictures is very large, and the requirements on data transmission and storage space on the site are high.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a method and system for recording bolt locking positions using data acquisition techniques is provided.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method for recording a bolt locking position by applying a data acquisition technology is suitable for an assembly line place where the position of a bolt to be fastened is relatively fixed, and comprises the following steps:
s1, arranging a positioning device at the corresponding position of each bolt to be fastened;
s2, arranging a trigger device capable of triggering the positioning device on the portable tightening machine;
s3, triggering the positioning device after the tightening machine is in place at the position of the bolt to be fastened until the tightening machine leaves the position of the bolt to be fastened, and resetting the positioning device;
s4, combining the historical torque information of the portable tightening machine with the trigger information of the positioning device in time order, and checking the tightening torque condition of each bolt.
Compared with the prior art, the invention has the following technical effects:
each sensor corresponds to a bolt to be fastened, and the torque information generated during the triggering of the non-contact switching value sensor is the situation of fastening the corresponding bolt, so that the triggering information of the non-contact switching value sensor is combined with the torque information of the portable tightening machine, the fastening situation of each bolt can be clearly judged, and the bolt can be conveniently positioned under the situation that the bolt is not tightened. The background can also conveniently check and confirm the fastening condition of each bolt.
Further, the positioning device is a non-contact switch sensor;
furthermore, the non-contact switch sensor is an infrared sensor, and the trigger device is a mirror reflection surface;
the beneficial effects of adopting the further scheme are that low cost, simple structure, convenient regulation, easy realization and regulation.
Further, the trigger device is a triangular pyramid reflector;
the light emitted from any direction can be reflected back by the triangular pyramid reflector, the slight shake in the working process of the portable tightening machine cannot influence the large-amplitude swing of the reflected light, and the corresponding switch sensor can be ensured to be in a continuous triggering state in the working process of the tightening machine.
A system for recording a bolt locking position by using a data acquisition technology comprises a portable tightening machine, a positioning device, a positioning signal acquisition module and a data acquisition terminal;
the positioning device is in communication connection with the positioning signal acquisition module, and the portable tightening machine and the positioning signal acquisition module are in communication connection with the data acquisition terminal;
the portable tightening machine is provided with a trigger device which can trigger the positioning device;
the positioning device is arranged at a position matched with the bolt to be fastened, and is triggered if and only if the portable tightening machine is in place on the bolt to be fastened;
the positioning signal acquisition module is used for acquiring information sent by the positioning device and transmitting the information to the data acquisition terminal;
the portable tightening machine is used for tightening the bolt to be tightened and communicating torque information generated in the working process with time information for generating torque and sending the time information to the data acquisition terminal;
the data acquisition terminal acquires and receives torque data sent by the portable tightening machine and positioning information sent by the positioning signal acquisition module, and the torque data and the positioning information are matched and correspond to each other, so that the torque information and the bolt are in corresponding relation.
Compared with the prior art, the invention has the following technical effects:
the problem of the automatic correspondence of tightening result and bolt is solved, the automatic acquisition of tightening result and bolt position has been realized, has satisfied the quality management and control of production site to the tightening result, has reduced workman's intensity of labour, has improved work efficiency.
On the basis of the technical scheme, the invention can be further improved as follows.
Preferably, the positioning device is a non-contact switching value sensor; the positioning signal acquisition module is a switching value acquisition module; the positioning signal is a state signal of the non-contact switching value sensor.
The torque and bolt corresponding relation can be realized by matching the state signal of the switching value and the torque signal according to the time sequence.
Preferably, the non-contact switch quantity sensor is an infrared sensor, and the trigger device is a specular reflection surface.
The beneficial effects of adopting the further scheme are that low cost, simple structure, convenient regulation, easy realization and regulation.
Preferably, the triggering device is a triangular pyramid reflector.
The light emitted from any direction can be reflected back by the triangular pyramid reflector, the slight shake in the working process of the portable tightening machine cannot influence the large-amplitude swing of the reflected light, and the corresponding switch sensor can be ensured to be in a continuous triggering state in the working process of the tightening machine.
Drawings
FIG. 1 is a schematic structural diagram of a method for recording a bolt locking position by using a data acquisition technology according to the present invention;
FIG. 2 is a graph of an embodiment of a photo sensor trigger signal versus a tightening machine torque signal;
in the drawings, the parts names represented by the respective reference numerals are listed as follows:
1. a portable tightening machine; 1-1, a reflector surface; 2. a photoelectric sensor; 3. a switching value acquisition module; 4. a data acquisition terminal; 5. the bolt is to be tightened.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Fig. 1 is a schematic structural diagram of a system for recording a bolt locking position according to the present invention. The system for recording bolt locking positions comprises: the portable tightening gun comprises a portable tightening gun 1, a positioning device 2 with a photoelectric sensor, a switching value acquisition module 3 and a data acquisition terminal 4;
the tightening gun has a WiFi communication function, and can realize TCP communication with a data acquisition terminal. The reverse side of the working surface of the tightening shaft is provided with a reflecting mirror surface 1-1, and the working surface of the reflecting mirror surface corresponds to the bolt 5 to be tightened.
The positioning device needs to be arranged according to the shape of a workpiece and the position of a bolt, a photoelectric sensor is arranged at the position, perpendicular to the bolt to be fastened, of the positioning device, and each bolt corresponds to one photoelectric sensor.
The photoelectric sensor is in a closed state under normal conditions, and when the tightening gun is in place on the bolt to be fastened, the mirror surface on the tightening gun reflects light emitted by the photoelectric sensor back to trigger the conduction of the photoelectric sensor. Therefore, the light of the photoelectric sensor is directed to the center of the nut and is perpendicular to the plane of the nut as much as possible
And the input end of the switching value acquisition module is connected with the photoelectric sensor to receive the on-off state of the photoelectric sensor in real time. Because the positions of the photoelectric sensors correspond to the positions of the bolts one by one, the module feeds back the result to the acquisition terminal in real time.
The acquisition terminal has a WiFi communication function, can realize TCP communication with the tightening gun, and obtains a tightening result. And meanwhile, the photoelectric sensor is communicated with the switching value acquisition module to acquire the state of the photoelectric sensor.
In each acquisition cycle, the data acquisition terminal actively sends out an instruction to inquire the switching value acquisition module, when the tightening machine works, the photoelectric sensor on the working position is triggered, and at the moment, the position information of the bolt is recorded. And after the tightening machine finishes the work, the tightening machine uploads the tightening result to the acquisition terminal, and the tightening result information of the bolt is recorded at the moment. And the acquisition terminal records the bolt position and result information and uploads the bolt position and the result information to the server.
As shown in fig. 2, a, b, c, d are four photoelectric sensors, each corresponding to a bolt to be fastened, N is a tightening machine torque signal, N is a standard requirement of torque, and it can be seen that:
during the time period t1, the a photoelectric sensor is triggered, which indicates that the tightening machine is at the bolt corresponding to the a photoelectric sensor, and the tightening machine is working during the time period, and the torque reaches the required torque n.
the b photoelectric sensor is triggered in the time period t2, the tightening machine is at the bolt corresponding to the b photoelectric sensor in the time period, and the tightening torque of the tightening machine reaches the required torque n.
During the time period t3, the c photosensor is activated, but the tightening machine does not have corresponding torque data indicating that the tightening machine is not working, perhaps only passing over the bolt corresponding to the c photosensor without operating, and this data can be deleted.
In the time period t4, the d-shaped photoelectric sensor is triggered, which indicates that the tightening machine is located at the bolt corresponding to the d-shaped photoelectric sensor and the tightening operation is performed, but the torque of the tightening machine cannot reach the required torque n, so that the bolt corresponding to the d-shaped photoelectric sensor is easy to find that the tightening force is insufficient and needs to be retightened through the judgment of the combination of the data.
In the use process, the screwing shaft passes through other photoelectric sensors, so that the photoelectric sensors are triggered by mistake. Or, during the moving process, the wrong pressing of the locking button generates useless locking results. Therefore, it is necessary to discriminate the result. As a correct result, it should be that the photo-sensor is always activated and a torque value is generated. Other results need to be excluded.
The bolts are positioned at a distance sufficient that they are not less than the length of the mirror surface to prevent simultaneous activation of the two photosensors.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention, such as changing the photoelectric sensor and the reflection mirror to be hall elements and magnets, or changing the photoelectric sensor to be a correlation switch, and making the light path of the correlation switch pass through the position of the tightening machine during the operation, should be included in the protection scope of the present invention.
Claims (8)
1. A method for recording a bolt locking position by using a data acquisition technology is characterized by comprising the following steps:
s1, arranging a positioning device at the corresponding position of each bolt to be fastened;
s2, arranging a trigger device capable of triggering the positioning device on the portable tightening machine;
s3, triggering the positioning device after the tightening machine is in place at the position of the bolt to be fastened until the tightening machine leaves the position of the bolt to be fastened, and resetting the positioning device;
and S4, combining the real-time torque information of the portable tightening machine with the trigger information of the positioning device according to the time sequence, and checking the fastening torque condition of each bolt.
2. The method for recording the locking position of a bolt using data acquisition technology as claimed in claim 1, wherein the positioning device is a non-contact switch sensor.
3. The method for recording the locking position of the bolt by using the data acquisition technology as claimed in claim 2, wherein the non-contact switch sensor is an infrared sensor, and the triggering device is a mirror reflection surface.
4. The method for recording bolt lock position using data acquisition technology as claimed in claim 2, wherein the triggering device is a triangular pyramid reflector.
5. A system for recording a bolt locking position by using a data acquisition technology is characterized by comprising a portable tightening machine, a positioning device, a positioning signal acquisition module and a data acquisition terminal;
the positioning device is in communication connection with the positioning signal acquisition module, and the portable tightening machine and the positioning signal acquisition module are in communication connection with the data acquisition terminal;
the portable tightening machine is provided with a trigger device which can trigger the positioning device;
the positioning device is arranged at a position matched with the bolt to be fastened, and is triggered if and only if the portable tightening machine is in place on the bolt to be fastened;
the positioning signal acquisition module is used for acquiring information sent by the positioning device and transmitting the information to the data acquisition terminal;
the portable tightening machine is used for tightening a bolt to be tightened and sending torque information generated in the working process and time information of the generated torque to the data acquisition terminal;
the data acquisition terminal acquires and receives torque data sent by the portable tightening machine and positioning information sent by the positioning signal acquisition module, and the torque data and the positioning information are matched and correspond to each other, so that the torque information and the bolt are in corresponding relation.
6. The system for recording the locking position of the bolt by using the data acquisition technology as claimed in claim 5, wherein the positioning device is a non-contact switching value sensor; the positioning signal acquisition module is a switching value acquisition module; the positioning signal is a state signal of the non-contact switching value sensor.
7. The system for recording the locking position of the bolt by using the data acquisition technology as claimed in claim 6, wherein the non-contact switch quantity sensor is an infrared sensor, and the triggering device is a mirror reflection surface.
8. The system for recording the locking position of a bolt using data acquisition technology as claimed in claim 5, wherein the triggering device is a triangular pyramid reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010872420.4A CN111805202A (en) | 2020-08-26 | 2020-08-26 | Method and system for recording bolt locking position by applying data acquisition technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010872420.4A CN111805202A (en) | 2020-08-26 | 2020-08-26 | Method and system for recording bolt locking position by applying data acquisition technology |
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| Publication Number | Publication Date |
|---|---|
| CN111805202A true CN111805202A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010872420.4A Pending CN111805202A (en) | 2020-08-26 | 2020-08-26 | Method and system for recording bolt locking position by applying data acquisition technology |
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| Country | Link |
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| CN (1) | CN111805202A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005121132A (en) * | 2003-10-16 | 2005-05-12 | Tohnichi Mfg Co Ltd | Fastening management system for fastening member |
| JP4821811B2 (en) * | 2008-06-20 | 2011-11-24 | アイシン・エィ・ダブリュ株式会社 | Bolt tightening judgment device |
| CN205898206U (en) * | 2016-08-16 | 2017-01-18 | 长安马自达汽车有限公司 | Special machine of electric automated inspection of mistake proofing leak protection |
| CN206029250U (en) * | 2016-08-30 | 2017-03-22 | 中航锂电（洛阳）有限公司 | Power module bolt tightening mechanism |
-
2020
- 2020-08-26 CN CN202010872420.4A patent/CN111805202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005121132A (en) * | 2003-10-16 | 2005-05-12 | Tohnichi Mfg Co Ltd | Fastening management system for fastening member |
| JP4821811B2 (en) * | 2008-06-20 | 2011-11-24 | アイシン・エィ・ダブリュ株式会社 | Bolt tightening judgment device |
| CN205898206U (en) * | 2016-08-16 | 2017-01-18 | 长安马自达汽车有限公司 | Special machine of electric automated inspection of mistake proofing leak protection |
| CN206029250U (en) * | 2016-08-30 | 2017-03-22 | 中航锂电（洛阳）有限公司 | Power module bolt tightening mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 陈光军等: "《机械工程测试技术》", 28 February 2011, 哈尔滨工程大学出版社 * |
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Application publication date: 20201023 |