TWI768235B - 2d-barcode laser engraver and position method - Google Patents

Abstract

A 2D-barcode laser engraver and　position method is disclosed. The 2D-barcode laser engraver including cabinet assembly and engraving assembly. Cabinet assembly includes cabinet module which has a base is on the top of it. Groove is disposed inside of the base for mounting Y-axis unit. Y-axis guide rail is disposed on the top of the base for mounting X-axis unit. Vacuum suction platform is disposed on the top of the X-axis unit by X-axis guide rail which is on the top of the X-axis unit. Z-axis unit is disposed on the rear wall of the base. Engraving assembly is disposed on the front wall of the Z-axis unit. Engraving device includes laser device module, and scanner, smoke purification module and visual module which are disposed above of the Vacuum suction platform. Scanner and visual module is disposed on the front wall of the laser device module.

Description

Two-dimensional barcode laser engraving machine and positioning method

The invention relates to the technical field of laser engraving equipment, in particular to a two-dimensional barcode laser engraving machine and a positioning method.

With the rapid development of science and technology, electronic products are changing rapidly, and various workpieces (for example, printed circuit boards) have become a general trend towards high density and high precision.

Two-dimensional barcode (2D-barcode) is a tool for carrying information, and the precision of its laser engraving is more and more valued by customers. A serious problem of the existing two-dimensional barcode laser engraving machine is that the original coordinate laser engraving method cannot automatically compensate for the expansion and contraction of the cursor point, thus affecting the precise positioning and processing of the workpiece.

The purpose of the present invention is to provide a two-dimensional barcode laser engraving machine and a positioning method, so as to solve the problem that the original coordinate laser engraving method cannot automatically align the light when the two-dimensional barcode laser engraving machine proposed in the prior art is used. The punctuation is compensated for the expansion and contraction, which affects the precise positioning and processing of the workpiece.

In order to achieve the above object, the present invention utilizes a two-dimensional barcode laser engraving machine, which includes a cabinet assembly and an engraving assembly; the cabinet assembly includes a cabinet module, the top of which is installed with a base, the interior of the base is provided with a concave groove, and a concave groove is installed in the groove. Y-axis module, the top of the base is installed with the X-axis module through the Y-axis guide rail, the top of the X-axis module is installed with a vacuum adsorption platform through the X-axis guide rail to install the workpiece, and the rear side wall of the base is installed with the Z-axis mold group; and the engraving component, which is installed on the front side wall of the Z-axis module; the engraving component includes a laser module, a code scanning module, a smoke purification module and a visual module, and the scanning module and the visual module are installed on the laser module. The front side wall of the transmitter module, the smoke purification module is installed on the right side wall of the laser module, the code scanning module, the smoke purification module and the vision module are all electrically connected to the laser module, and the code scanning module is connected to the laser module. The group, smoke purification module and visual module are all located on the upper part of the vacuum adsorption platform.

A photosensitive coupling element lens is installed at the bottom of the vision module, and the photosensitive coupling element lens is facing the top of the vacuum adsorption platform.

The electrical output of the laser module is connected to the computer.

The vacuum adsorption platform is moved in the horizontal direction by the X-axis module and the Y-axis module.

The base is bolted to the top of the cabinet assembly.

The engraving component is mounted on the front side wall of the Z-axis module by means of bolts.

A Z-axis module is installed on the rear sidewall of the base by bolts.

The code scanning module and the vision module are mounted on the front side wall of the laser module by bolts, and the smoke purification module is mounted on the right side wall of the laser module by bolts.

The photosensitive coupling element lens is mounted on the bottom of the vision module.

In order to achieve the above object, the present invention provides a positioning method utilizing the above-mentioned two-dimensional barcode laser engraving machine, comprising: Install the workpiece on the top of the vacuum adsorption platform; control the movement of the Y-axis module, X-axis module and Z-axis module by operating the computer; adjust the position of the engraving component in the vertical direction by the Z-axis module; The position of the vacuum adsorption platform in the horizontal direction is adjusted by the Y-axis module and the X-axis module; and the vision module scans the optical point on the workpiece to position the workpiece.

The method uses the photosensitive coupling element lens to grab the optical point marked on the workpiece, and automatically measures the expansion and contraction value of the position element, and compensates the position of the two-dimensional bar code by the expansion and contraction value.

Compared with the prior art, the beneficial effects of the present invention are: the setting of the two-dimensional barcode laser engraving machine is reasonable in structure design, a photosensitive coupling element lens is installed at the bottom of the vision module, and the workpiece is grasped by the photosensitive coupling element lens. The optical point of the two-dimensional barcode is marked on the top and the expansion and contraction value is automatically measured for the bit element, and the position of the two-dimensional barcode is compensated by the expansion and contraction value, thereby ensuring the accuracy of the two-dimensional barcode laser engraving.

1: 2D barcode laser engraving machine

10: Cabinet Components

100: Cabinet Module

110: Base

111: concave groove

120: X-axis module

121: X-axis guide

130: Y-axis module

131: Y-axis guide

140: Z-axis module

141: Z-axis guide

150: Vacuum adsorption platform

20: Carving Components

210: Laser Module

220: Scan code module

230: Smoke purification module

240: Vision Mods

X: X-axis direction

Y: Y axis direction

Z: Z axis direction

FIG. 1 is a schematic structural diagram of the present invention.

The various embodiments of the content of the present invention will be described in detail below, and the drawings will be used as examples for illustration. In addition to these detailed descriptions, the present application can also be widely implemented in other embodiments, and any easy substitutions, modifications, and equivalent changes of any of the described embodiments are included within the scope of the present application, and the following The scope of the patent shall prevail. In the description of the specification, in order to give the reader a more complete understanding of the present case, many specific details are provided; however, the present case may still be practiced under the premise that some or all of these specific details are omitted. Also, well-known steps or elements have not been described in detail to avoid unnecessarily limiting the present application. The same or similar elements in the drawings will be represented by the same or similar symbols. It should be noted that the drawings are for illustrative purposes only, and do not represent the actual size or number of elements unless otherwise specified.

The present invention provides a two-dimensional barcode laser engraving machine, which is used for precise positioning of optical points on a workpiece (eg, a printed circuit board), thereby improving the laser engraving precision.

Please refer to FIG. 1 , the two-dimensional barcode laser engraving machine 1 includes a cabinet assembly 10 and an engraving assembly 20 .

The cabinet assembly 10 includes a cabinet module 100 , and a base 110 is mounted on the top of the cabinet module 100 . Regarding the connection method between the cabinet module 100 and the base 110 , for example, a plurality of first threaded grooves may be formed at the bottom of the base 110 , and a plurality of second threaded grooves corresponding to the first threaded grooves may be formed at the top of the cabinet module 100 . The base 110 is installed on the top of the cabinet module 100 by screwing the first thread groove and the second thread groove with bolts.

A concave groove 111 is provided inside the base 110 , and the Y-axis module 130 is embedded in the concave groove 111 . The top of the base 110 is welded with a Y-axis guide rail 131 , the X-axis module 120 is mounted on the Y-axis guide rail 131 , and the X-axis module 120 can move back and forth along the Y-axis direction on the Y-axis guide rail 131 . The vacuum suction platform 150 is installed on the X-axis guide rail 121 on the top of the X-axis module 120 , and the vacuum suction platform 150 can reciprocate along the X-axis guide rail 121 in the X-axis direction. Regarding the connection method of the vacuum adsorption platform 150 and the X-axis module 120 , for example, the bottom of the vacuum adsorption platform 150 can be screwed to the top of the X-axis module 120 by means of bolts.

A Z-axis module 140 is disposed on the top of the cabinet module 100. Regarding the connection method between the cabinet module 100 and the Z-axis module 140, for example, a plurality of third thread grooves may be provided at the bottom of the Z-axis module 140. The top of the cabinet module 100 is provided with a plurality of fourth threaded grooves corresponding to the third threaded grooves. The Z-axis module 140 is fixed on the cabinet by screwing the third threaded groove and the fourth threaded groove with bolts. The top of the module 100 , and the front sidewall of the Z-axis module 140 is in contact with the rear sidewall of the base 110 .

The cabinet module 100 is used for storing electronic components, the Z-axis module 140 has a Z-axis guide rail 141, the base 110 and the Z-axis module 140 are used to adjust the position of the vacuum adsorption platform 150 and the engraving assembly 20 in the Z-axis direction, The vacuum suction platform 150 is used for placing workpieces (eg, printed circuit boards). Materials used for the base 110 and the Z-axis module 140 are not limited, for example, stainless steel.

Referring to FIG. 1 , the engraving assembly 20 is used for optical point positioning of the workpiece on the vacuum suction platform 150 . The engraving assembly 20 is installed on the front side wall of the Z-axis module 140 . The engraving assembly 20 includes a laser module 210 , a code scanning module 220 , a smoke purification module 230 and a vision module 240 . A plurality of fifth thread grooves may be provided on the front side wall of the Z-axis module 140 , and a plurality of sixth thread grooves corresponding to the fifth thread grooves may be provided on the rear side wall of the laser module 210 . Combined with the fifth thread groove and the sixth thread groove, the laser module 210 is installed on the front side wall of the Z-axis module 140 .

The front side wall of the laser module 210 is provided with two through holes, the code scanning module 220 and the vision module 240 are respectively inserted into the through holes, and the code scanning module 220 is located on the upper part of the vision module 240 .

A plurality of seventh thread grooves may be provided on the right side wall of the laser module 210, and a plurality of eighth thread grooves corresponding to the seventh thread grooves may be provided at the left end of the smoke purification module 230, which are screwed together by bolts. The above-mentioned seventh thread groove and eighth thread groove are used to install the smoke purification module 230 on the right side wall of the laser module 210 .

It must be noted that the first thread groove, the second thread groove, the third thread groove, the first thread groove Four thread grooves, fifth thread grooves, sixth thread grooves, seventh thread grooves, and eighth thread grooves are used as illustrative examples, and are not limited to the specific numbers described in this embodiment. On the premise that the engraving machine can accurately locate the optical points, the number of optical points can be increased or decreased as required.

Please refer to FIG. 1 , in order to improve the scanning accuracy of the optical point, a photosensitive coupling device (CCD, Charge Coupled Device) lens is installed on the bottom of the vision module 240 . A through hole may be provided at the bottom of the vision module 240 , and the photosensitive coupling element lens is embedded in the through hole at the bottom of the vision module 240 , and the photosensitive coupling element lens is used to identify the optical points on the workpiece.

Please refer to FIG. 1 , in order to process data and send commands, the laser module 210 , the code scanning module 220 , the smoke purification module 230 and the vision module 240 are connected to the computer (shown in FIG. 1 ) through wires. The computer is used for data processing and command sending, and controls the movement of the X-axis module 120, the Y-axis module 130 and the Z-axis module 140, so that the equipment can operate normally.

Please refer to FIG. 1 , using the positioning method of the two-dimensional barcode laser engraving machine of the present invention, which includes the following steps: installing the workpiece on the top of the vacuum adsorption platform 150; controlling the X-axis module 120, The movement of the Y-axis module 130 and the Z-axis module 140; the Z-axis module 140 adjusts the position of the engraving assembly 20 in the vertical direction (that is, the Z-axis direction in the figure); the Y-axis module 130 and the X-axis module The axis module 120 adjusts the position of the vacuum adsorption platform 150 in the horizontal direction (that is, the X-axis direction and the Y-axis direction shown in the figure); and enables the vision module 240 to accurately scan the optical points on the workpiece, thereby accurately The workpiece is positioned and processed.

To sum up, the two-dimensional barcode laser engraving machine provided by the present invention has a reasonable structure design. A photosensitive coupling element lens is installed at the bottom of the vision module, and the photosensitive coupling element lens is used to grab the optical point marked on the workpiece and Automatically measure the expansion and contraction value of the bit element, and compensate the position of the two-dimensional barcode by the expansion and contraction value, so as to ensure the accuracy of the two-dimensional barcode laser engraving.

Although the present invention has been described above with reference to the embodiments, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way, and the description of these combinations is not exhaustive in this specification. For the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

1: 2D barcode laser engraving machine

10: Cabinet Components

100: Cabinet Module

110: Base

111: concave groove

120: X-axis module

121: X-axis guide

130: Y-axis module

131: Y-axis guide

140: Z-axis module

141: Z-axis guide

150: Vacuum adsorption platform

20: Carving Components

210: Laser Module

220: Scan code module

230: Smoke purification module

240: Vision Mods

X: X-axis direction

Y: Y axis direction

Z: Z axis direction

Claims (3)

A two-dimensional barcode laser engraving machine, comprising: a cabinet assembly, including a cabinet module, a base is installed on the top of the base, a concave groove is arranged inside the base, a Y-axis module is installed in the concave groove, and the top of the base borrows The X-axis module is installed on the Y-axis guide rail, the top of the X-axis module is installed with a vacuum adsorption platform through the X-axis guide rail to install the workpiece, and the Z-axis module is installed on the rear side wall of the base; On the front side wall of the Z-axis module, the engraving component includes a laser module, a code scanning module, a smoke purification module and a vision module, and the code scanning module and the vision module are installed on the laser module. The front side wall of the group, the smoke purification module is installed on the right side wall of the laser module, the code scanning module, the smoke purification module and the vision module are all electrically connected to the laser module. The code scanning module, the smoke purification module and the vision module are all located on the upper part of the vacuum adsorption platform; wherein a photosensitive coupling element lens is installed at the bottom of the vision module, and a through hole is arranged at the bottom of the vision module , the photosensitive coupling element lens is inlaid and installed in the through hole of the bottom of the vision module, and the photosensitive coupling element lens is on the top of the vacuum adsorption platform; on the front side wall of the laser module, there are two a through hole, the code scanning module and the vision module are respectively inserted into the through holes of the front side wall of the laser module, and the code scanning module is located on the upper part of the vision module; The ejector module is electrically output and connected to the computer; the vacuum suction platform is moved in the horizontal direction by the X-axis module and the Y-axis module; the engraving component is moved in the vertical direction by the Z-axis module; the base is Installed on the top of the cabinet assembly by bolts, the engraving assembly is installed on the front sidewall of the Z-axis module by bolts, the rear sidewall of the base is installed with the Z-axis module by bolts, the code scanning module and the vision module are bolted to the front side wall of the laser module, the smoke The purification module is mounted on the right side wall of the laser module by means of bolts. A positioning method using the two-dimensional barcode laser engraving machine described in item 1 of the scope of the patent application, comprising: installing a workpiece on the top of the vacuum suction platform; controlling the Y-axis module, the X-axis The movement of the axis module and the Z-axis module; the position of the engraving assembly in the vertical direction is adjusted by the Z-axis module; the vacuum adsorption platform is leveled by the Y-axis module and the X-axis module The position in the direction is adjusted; and the optical point on the workpiece is scanned by the vision module to perform positioning and processing on the workpiece. The positioning method as described in item 2 of the scope of the patent application, wherein the optical point marked on the workpiece is captured by the photosensitive coupling element lens, and the expansion and contraction value is automatically measured by the positioning element, and the two are measured by the expansion and contraction value. Dimension bar code position to compensate.

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