Laser marking device

Abstract

The utility model discloses a laser marking device which comprises a workbench, a positioning tool, a laser marking machine, a code scanning gun and an industrial personal computer. Wherein the positioning tool is fixed at a first position on the workbench and is used for fixedly supporting a to-be-marked product; the laser marking machine is fixed at a second position on the workbench, and the laser marking machine is used for marking a two-dimensional code mark in a to-be-marked area of the to-be-marked product; the code scanning gun is fixed to a third position on the workbench and can automatically scan the two-dimensional code mark and judge the good grade of the two-dimensional code mark. The industrial personal computer is electrically connected with the positioning tool, the laser marking machine and the code scanning gun at the same time. According to the utility model, the problem that the product rejection rate is increased due to the fact that the marking quality grade of each time is uneven and is easy to exceed the boundary of the specified position when the marking is carried out manually can be solved, and the product rejection rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of laser marking, especially relates to a laser marking device. BACKGROUND

[0002] With the rise of production cost and labor cost, intelligent manufacturing has become an urgent demand of each enterprise, therefore, the automatic production line of machining is widely applied in the automobile parts enterprises, for example, the laser marking machine is adopted to carry out the marking operation to the workpiece, and the machining efficiency and quality are effectively provided.

[0003] At present, most of the laser marking work is usually carried out by using the handheld laser marking machine to mark the two-dimensional code mark on the product to be marked, and then the code gun is used to scan the code and judge the excellent level of the two-dimensional code. However, since the position of the two-dimensional code on the product is fixed and limited, manual marking will lead to uneven excellent level of each marking, and it is easy to exceed the specified position boundary, resulting in the increase of product scrap rate. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a laser marking device, which solves the problem that manual marking leads to uneven excellent level of each marking, and it is easy to exceed the specified position boundary, resulting in the increase of product scrap rate, and reduces the product scrap rate.

[0005] The utility model realizes the following technical scheme:

[0006] A laser marking device comprises:

[0007] A workbench;

[0008] A positioning tool fixed at a first position on the workbench and used for fixing and supporting the product to be marked;

[0009] A laser marking machine fixed at a second position on the workbench and used for marking the two-dimensional code mark on the marking area of the product to be marked;

[0010] A code scanning gun fixed at a third position on the workbench and capable of automatically scanning and judging the excellent level of the two-dimensional code mark;

[0011] An industrial computer electrically connected with the positioning tool, the laser marking machine and the code scanning gun.

[0012] Further, the positioning tool is detachably connected with the workbench.

[0013] Further, the positioning tool comprises a supporting plate detachably connected with the workbench through a fixing pin.

[0014] Further, a plurality of positioning pins are arranged on the support plate, and the positioning pins are matched with positioning holes of the product to be marked.

[0015] Further, the positioning tool further comprises a photoelectric detection switch and at least two fixing cylinders, the photoelectric detection switch is electrically connected with the industrial computer, and the fixing cylinders are electrically connected with the industrial computer; when the photoelectric detection switch detects a signal that the product to be marked is placed on the support plate, the industrial computer controls the fixing cylinders to press the product to be marked placed on the support plate.

[0016] Further, the at least two fixing cylinders comprise two fixing cylinders, and the two fixing cylinders are arranged on two sides of the support plate, respectively.

[0017] Further, the laser marking device further comprises a smoke removal machine, the smoke removal machine is fixed at a fourth position on the workbench and is used for collecting smoke generated in the laser marking process.

[0018] Further, the first position, the second position, the third position and the fourth position are substantially kept in the same plane.

[0019] Further, the second position and the third position are substantially kept consistent in the front-rear direction, so as to improve the scanning accuracy of the code scanning gun.

[0020] Further, the fourth position is located at the rear side of the second position and the third position, so as to reduce the left-right width of the laser marking device.

[0021] Further, the smoke removal machine comprises a smoke removal channel, the smoke removal channel extends across the second position and the third position, and an opening of the smoke removal channel is arranged above the first position.

[0022] Further, the smoke removal channel is made of a steel wire winding pipe.

[0023] Further, a structure hole is arranged on the product to be marked, the structure hole is used for distinguishing the type of the product to be marked, and the laser marking device further comprises a detection and recognition assembly, the detection and recognition assembly comprises a telescopic cylinder and a probe head, the telescopic cylinder drives the probe head to move until the probe head abuts against the edge of the structure hole;

[0024] The telescopic cylinder is electrically connected with the industrial computer and feeds back the movement distance of the probe head to the industrial computer, and the industrial computer determines the type of the product to be marked according to the feedback distance.

[0025] Further, the probe head comprises a flange and a protrusion, the flange is fixedly connected with a push rod of the telescopic cylinder, and the protrusion is formed by the free end surface of the flange outwardly protruding relative to the push rod;

[0026] When the product to be marked is a first type of marking product, the telescopic cylinder drives the probe head to move until the flange abuts against the edge of the structure hole.

[0027] When the product to be marked is a Class II marking product, the telescopic cylinder drives the probe head to move until the protrusion abuts against the edge of the structural hole.

[0028] Compared with existing technologies, the advantages of this utility model are:

[0029] 1. By fixing the positioning fixture, laser marking machine, and barcode scanner at the first, second, and third positions on the worktable, and fixing the product to be marked on the positioning fixture, it is ensured that the QR code mark is within the specified marking area each time, thus reducing the scrap rate of the product.

[0030] 2. By using an industrial control computer to control the laser marking machine and barcode scanner in fixed positions to work automatically, no manual intervention is required for marking and scanning, which improves work efficiency; and since laser marking has certain risks, automation replaces manual work, which improves the safety factor of production.

[0031] 3. By fixing the smoke remover to the workbench, the smoke generated during laser marking can be collected, thus preventing air pollution.

[0032] 4. By detachably connecting the positioning fixture to the worktable, it is possible to quickly switch between positioning fixtures for different products. Attached Figure Description

[0033] Figure 1 This is a three-dimensional assembly drawing of a laser marking device according to an embodiment of the present invention;

[0034] Figure 2 This is a partial three-dimensional assembly view of a laser marking device according to an embodiment of the present invention;

[0035] Figure 3 This is a partial structural schematic diagram of a laser marking device according to an embodiment of the present invention;

[0036] Figure 4 This is another partial three-dimensional assembly view of a laser marking device according to an embodiment of the present invention;

[0037] Figure 5 for Figure 4 Enlarged view of section A;

[0038] Figure 6 This is a schematic diagram of the structure of a laser marking device according to an embodiment of the present invention;

[0039] Figure 7 for Figure 6 Enlarged view of section B;

[0040] Figure 8 A 3D assembly diagram for detecting and identifying components.

[0041] Label explanation: 1, rack; 10, workbench; 11, start button; 12, display; 13, touch screen; 2, positioning tool; 21, support plate; 22, fixed cylinder; 23, positioning pin; 24, fixed pin; 3, laser marking machine; 31, lens; 32, first support; 4, code scanning gun; 42, second support; 5, smoke removal machine; 52, smoke removal channel; 520, opening; 6, detection and identification assembly; 61, telescopic cylinder; 62, push rod; 63, probe head; 631, flange; 632, protrusion; 64, third support; 7, industrial computer; 8, product to be marked; 81, area to be marked; 82, structure hole. DETAILED DESCRIPTION

[0042] The technical solutions of the utility model are further described in detail below in combination with preferred embodiments and the drawings. In the description of the utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. The embodiments described below by reference to the drawings are exemplary and are intended to explain the utility model, and should not be understood as limiting the utility model.

[0043] As Figures 1 to 4As shown, the laser marking device of the utility model one embodiment, including frame 1, positioning tool 2, laser marking machine 3, code scanning gun 4 and industrial computer 7. Wherein, frame 1 includes workbench 10. Positioning tool 2 is fixed at the first position on workbench 10, and is used for fixing and supporting the product 8 to be marked;Laser marking machine 3 is fixed at the second position on workbench 10, and is used for marking two-dimensional code mark in the area 81 to be marked of the product 8 to be marked;Code scanning gun 4 is fixed at the third position on workbench 10 and can automatically scan and judge the excellent grade of two-dimensional code mark. Industrial computer 7 is fixed on frame 1, and industrial computer 7 is electrically connected with positioning tool 2, laser marking machine 3 and code scanning gun 4 simultaneously. By fixing positioning tool 2, laser marking machine 3 and code scanning gun 4 at the first position, the second position and the third position of workbench 10 respectively, and fixing the product 8 to be marked on positioning tool 2, it is ensured that the two-dimensional code mark is marked in the specified area 81 to be marked each time, and the scrap rate of product is reduced.

[0044] As Figure 3 Shown, positioning tool 2 and workbench 10 are detachably connected. Positioning tool 2 includes support plate 21, and support plate 21 is detachably connected with workbench 10 through fixing pin 24. Wherein, fixing pin 24 is preferably hand-pulled type positioning pin, to realize quick switching of positioning tool 2 of different products.

[0045] Support plate 21 is provided with a plurality of positioning pins 23, and the positioning pins 23 are matched with the positioning holes (not shown in the figure) opened on the product 8 to be marked.

[0046] Positioning tool 2 further includes photoelectric detection switch and at least two fixed cylinders 22. Wherein, at least two fixed cylinders 22 include two fixed cylinders 22, and the two fixed cylinders 22 are arranged on both sides of support plate 21 respectively.

[0047] Specifically, photoelectric detection switch is electrically connected with industrial computer 7, fixed cylinder 22 is electrically connected with industrial computer 7, when photoelectric detection switch detects the signal that there is product 8 to be marked on support plate 21, industrial computer 7 controls fixed cylinder 22 to press the product 8 to be marked placed on support plate 21.

[0048] As Figure 4 And Figure 5 As shown, laser marking machine 3 is fixedly connected on first support 32 through screw (not shown in the figure), and first support 32 is fixedly connected at the second position on workbench 10 through screw. And the lens 31 of laser marking machine 3 can be adjusted in three directions, when switching different products for marking, it can quickly adapt to product production.

[0049] The code scanning gun 4 is fixedly connected to the second support 42 by screws, and the second support 42 is fixedly connected to the workbench 10 at a third position. Specifically, the second position and the third position are substantially consistent in the front-rear direction, so as to improve the accuracy of scanning by the code scanning gun 4

[0050] Further referring to Figures 2 to 6 , the laser marking device further comprises a smoke removal machine 5 for collecting smoke generated in the laser marking process to avoid air pollution. Specifically, the smoke removal machine 5 is fixed at a fourth position on the workbench 10, and the first position, the second position, the third position and the fourth position are substantially in the same plane, so that the field of view above the workbench 10 is open, facilitating observation by employees. Moreover, the fourth position is located at the rear side of the second position and the third position, so as to reduce the left-right width of the laser marking device and save the working space.

[0051] Further referring to Figure 5 and Figure 6 , the smoke removal machine 5 further comprises a flexible smoke removal channel 52. The smoke removal channel 52 is made of a steel wire winding pipe, so that the smoke removal channel 52 can maintain a certain deformation. The smoke removal channel 52 extends across the second position and the third position, and an opening 520 is arranged above the first position, so that the smoke removal machine 5 can more specifically perform the smoke removal work.

[0052] As shown in Figure 7 , the structure hole 82 is provided on the product to be marked 8. Moreover, the appearance shape of the same series of products of the product to be marked 8 is substantially the same, and only the inner diameter of the structure hole 82 is different, so that the structure hole 82 is used to distinguish the type of the product to be marked 8.

[0053] Further referring to Figure 8 , the laser marking device further comprises a detection and identification assembly 6. The detection and identification assembly 6 comprises a telescopic cylinder 61 and a probe head 63. The telescopic cylinder 61 is installed on a third support 64, and the third support 64 is fixedly connected to the workbench 10 by screws. The telescopic cylinder 61 drives the probe head 63 to move until the probe head 63 abuts against the edge of the structure hole 82. Moreover, the telescopic cylinder 61 is electrically connected to the industrial computer 7 and feeds back the distance of movement of the probe head 63 to the industrial computer 7, and the industrial computer 7 determines the type of the product to be marked 8 according to the feedback distance.

[0054] Specifically, the probe head 63 comprises a flange 631 and a protrusion 632. The flange 631 is fixedly connected to a push rod 62 of the telescopic cylinder 61, and the protrusion 632 is formed by the free end surface of the flange 631 protruding outward relative to the push rod 62. The outer diameter of the protrusion 632 is D1, and the outer diameter of the flange 631 is D2, and D2>D1.

[0055] More specifically, the inner diameter of the structural hole 82 of the first type of marking product is Da, and the inner diameter of the structural hole 82 of the second type of marking product is Db, wherein Da>Db. And D2>Da, D1>Db.

[0056] When the product to be marked 8 is the first type of marking product, the telescopic cylinder 61 drives the probe head 63 to move until the flange 631 abuts against the edge of the structural hole 82, at which time the movement distance of the probe head 63 is L1. The telescopic cylinder 61 feeds back the movement distance L1 of the probe head 63 to the industrial computer 7, and the industrial computer 7 determines that the type of the product to be marked 8 is the first type of marking product according to the feedback distance L1, and controls the laser marking machine 3 to mark the two-dimensional code mark corresponding to the first type of marking product.

[0057] When the product to be marked 8 is the second type of marking product, the telescopic cylinder 61 drives the probe head 63 to move until the protrusion 632 abuts against the edge of the structural hole 82, at which time the movement distance of the probe head 63 is L2. The telescopic cylinder 61 feeds back the movement distance L2 of the probe head 63 to the industrial computer 7, and the industrial computer 7 determines that the type of the product to be marked 8 is the second type of marking product according to the feedback distance L2, and controls the laser marking machine 3 to mark the two-dimensional code mark corresponding to the second type of marking product.

[0058] Referring again to Figure 1 , the rack 1 is also provided with a start button 11, a display 12 and a touch screen 13 which are electrically connected with the industrial computer 7. Among them, the start button 11 is used to control the start of the whole device; the display 12 is used to display the marking process of the laser marking machine 3 in real time; the touch screen 13 is used to modify the information of the two-dimensional code mark marked by the laser marking machine 3.

[0059] In use, first, the worker places the product to be marked 8 on the support plate 21 of the positioning tool 2, and presses the start button 11. The photoelectric detection switch detects the position of the product and feeds back the detection signal to the industrial computer 7, and the industrial computer 7 controls the fixed cylinder 22 to move to tightly fix the product to be marked 8 placed on the support plate 21.

[0060] Secondly, the industrial computer 7 controls the telescopic cylinder 61 to drive the probe head 63 to move until the probe head 63 abuts against the edge of the structural hole 82; the telescopic cylinder 61 feeds back the movement distance of the probe head 63 to the industrial computer 7, and the industrial computer 7 determines the type of the product to be marked 8 according to the feedback distance, and controls the telescopic cylinder 61 to drive the probe head 63 to return to the original position.

[0061] Then, the industrial computer 7 controls the laser marking machine 3 to mark the corresponding two-dimensional code mark according to the determined type of the product to be marked 8. After the marking is completed, the industrial computer 7 controls the code scanning gun 4 to automatically scan the two-dimensional code and judge the excellent level of the two-dimensional code mark.

[0062] Finally, the industrial computer 7 controls the fixed cylinder 22 to release the product after marking, and the worker takes out the product after marking.

[0063] The laser marking device of one embodiment of the utility model, through fixing positioning tool 2, laser marking machine 3 and code scanning gun 4 at the first position, the second position and the third position of workbench 10 respectively, and fixing the product to be marked 8 on positioning tool 2, ensure that the two-dimensional code mark is in the prescribed area 81 to be marked each time, reduce the scrap rate of product. Through the use of industrial computer 7, laser marking machine 3 and code scanning gun 4 fixed in position are controlled to work automatically, manual marking and code scanning are not needed, the work efficiency is improved, and since laser marking has certain danger, the manual work is replaced by automatic work, the safety factor of production is improved. Through fixing the smoke removing machine 5 on the table top of workbench 10, the smoke generated in the laser marking process can be collected, air pollution is avoided, the visual field above workbench 10 is also empty, and the staff can observe conveniently. Through the use of detection and identification assembly 6, the structure hole 82 is detected to distinguish the type of product to be marked 8, the possibility of distinguishing error of the type of product to be marked 8 is reduced. Through detachable connection of positioning tool 2 and workbench 10, the quick switching of positioning tool 2 of different products can be realized.

[0064] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the utility model. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A laser marking device, characterized in that, The utility model relates to a laser marking device, which comprises: a workbench (10); a positioning tool (2) fixed at a first position on the workbench (10) and used for fixing and supporting a product (8) to be marked; a laser marking machine (3) fixed at a second position on the workbench (10) and used for marking a two-dimensional code on a region (81) of the product (8) to be marked; a code scanning gun (4) fixed at a third position on the workbench (10) and capable of automatically scanning and judging the quality of the two-dimensional code; an industrial computer (7) electrically connected to the positioning tool (2), the laser marking machine (3) and the code scanning gun (4).

2. The laser marking device of claim 1, wherein, The positioning tool (2) is detachably connected to the workbench (10).

3. The laser marking device of claim 2, wherein, The positioning tool (2) comprises a support plate (21) detachably connected to the workbench (10) by a fixing pin (24).

4. The laser marking device of claim 3, wherein A plurality of positioning pins (23) are arranged on the support plate (21) and matched with positioning holes of the product (8) to be marked.

5. The laser marking device of claim 3, wherein, The positioning tool (2) further comprises a photoelectric detection switch electrically connected to the industrial computer (7) and at least two fixing cylinders (22) electrically connected to the industrial computer (7). When the photoelectric detection switch detects a signal that the product (8) to be marked is placed on the support plate (21), the industrial computer (7) controls the fixing cylinders (22) to press the product (8) to be marked.

6. The laser marking device of claim 5, wherein, The at least two fixing cylinders (22) comprise two fixing cylinders (22) arranged on both sides of the support plate (21), respectively.

7. The laser marking device of claim 1, wherein, The laser marking device further comprises a smoke removal machine (5) fixed at a fourth position on the workbench (10) and used for collecting smoke generated in the laser marking process.

8. The laser marking device of claim 7, wherein, The first, second, third and fourth positions are substantially in the same plane.

9. The laser marking device of claim 7, wherein, The second and third positions are substantially consistent in the front-rear direction, so as to improve the accuracy of scanning by the code scanning gun (4).

10. The laser marking device of claim 9, wherein, The fourth position is located at the rear side of the second and third positions, so as to reduce the left-right width of the laser marking device.

11. The laser marking device of claim 10, wherein, The smoke removal machine (5) comprises a smoke removal channel (52) extending across the second and third positions, and an opening (520) of the smoke removal channel (52) is arranged above the first position.

12. The laser marking device of claim 11, wherein, The smoke removal channel (52) is made of a steel wire winding pipe.

13. The laser marking device of claim 1, wherein, The to-be-marked product (8) is provided with a structure hole (82), and the structure hole (82) is used for distinguishing the type of the to-be-marked product (8). The laser marking device further comprises a detection and recognition assembly (6), and the detection and recognition assembly (6) comprises a telescopic air cylinder (61) and a detection head (63). The telescopic air cylinder (61) drives the detection head (63) to move until the detection head (63) abuts against the edge of the structure hole (82). The telescopic air cylinder (61) is electrically connected with the industrial computer (7) and feeds back the movement distance of the detection head (63) to the industrial computer (7). The industrial computer (7) determines the type of the to-be-marked product (8) according to the feedback distance.

14. The laser marking device of claim 13, wherein, The detection head (63) comprises a flange (631) and a protrusion (632). The flange (631) is fixedly connected with a push rod (62) of the telescopic air cylinder (61), and the protrusion (632) is formed by the free end surface of the flange (631) being outwardly protruded relative to the push rod (62). When the to-be-marked product (8) is a first type of marking product, the telescopic air cylinder (61) drives the detection head (63) to move until the flange (631) abuts against the edge of the structure hole (82). When the to-be-marked product (8) is a second type of marking product, the telescopic air cylinder (61) drives the detection head (63) to move until the protrusion (632) abuts against the edge of the structure hole (82).

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