Automatic laser marking machine

Abstract

The invention relates to the technical field of laser processing equipment, and particularly discloses an automatic laser marking machine which comprises a workbench, a marking mechanism, a conveying mechanism and a control system are arranged on the workbench, the marking mechanism conducts marking action, and the conveying mechanism is arranged on the table top of the workbench and used for horizontally conveying products. The conveying path of the conveying mechanism passes through the marking position of the marking mechanism, the control system is electrically connected with the marking mechanism and the conveying mechanism, and when the conveying mechanism conveys products to the marking position of the marking mechanism, the control system controls the conveying mechanism to stop conveying operation and controls the marking mechanism to conduct marking operation at the same time. And after the marking operation of the product at the marking position of the marking mechanism is completed, the control system controls the conveying mechanism to continue the conveying operation and controls the marking mechanism to stop the marking operation at the same time. The marking device has the advantages that the marking efficiency can be improved, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of laser processing equipment, and in particular, to an automatic laser marking machine. Background Art

[0002] With the rapid development of industrial automation and intelligent manufacturing, laser marking technology has been widely used in many fields due to its advantages of high precision, high speed, and non-contact processing. It can mark clear and durable patterns, texts, QR codes, and other information on the surfaces of various materials, greatly improving the marking quality and production efficiency of products, and meeting the requirements of modern manufacturing for product traceability, anti-counterfeiting, and brand promotion. In industries such as electronics, automotive, and aerospace, laser marking machines have become indispensable production equipment, driving these industries towards higher quality and higher precision.

[0003] A laser marking machine usually includes a workbench, a marking head, and a special clamping fixture. The marking head is fixedly arranged on the workbench, and the special clamping fixture is fixed on the tabletop of the workbench for clamping and fixing the product to be marked, and the marking head is located directly above the special clamping fixture. When marking operations need to be performed on products of the same model and specification, the operator manually places the product to be marked in the special clamping fixture. After the special clamping fixture fixes the product, the marking head then performs the marking operation on the product. After the marking operation on this product is completed, the operator needs to manually perform the material change operation, which is cumbersome and inefficient. In addition, when it is necessary to switch to products of different specifications and models for marking operations, it is necessary to re-manufacture and replace the matching special clamping fixture, increasing the manufacturing cost. This problem urgently needs to be improved. Summary of the Invention

[0004] In order to improve the marking efficiency and reduce the manufacturing cost, this application provides an automatic laser marking machine.

[0005] An automatic laser marking machine provided by this application adopts the following technical solutions: An automatic laser marking machine includes a workbench, on which a marking mechanism, a conveying mechanism, and a control system are arranged. The marking mechanism performs marking actions. The conveying mechanism is arranged on the tabletop of the workbench for horizontally conveying products, and the conveying path of the conveying mechanism passes through the marking position of the marking mechanism. The control system is electrically connected to the marking mechanism and the conveying mechanism; When the conveying mechanism conveys the product to the marking position of the marking mechanism, the control system controls the conveying mechanism to stop the conveying operation and simultaneously controls the marking mechanism to perform the marking operation; After the marking operation of the product at the marking position of the marking mechanism is completed, the control system controls the conveying mechanism to continue the conveying operation and simultaneously controls the marking mechanism to stop the marking operation.

[0006] By adopting the above technical solution, the workbench aggregates the marking mechanism, the conveying mechanism and the control mechanism together and plays a supporting role. When it is necessary to perform a marking operation on a product, only the product needs to be placed in the conveying mechanism, and the conveying mechanism conveys the product. When the conveying mechanism conveys the product to the marking position of the marking mechanism, the control system controls the conveying mechanism to stop conveying so that the product stays at the marking position. At the same time, the control system controls the marking mechanism to perform a marking operation on the product. After the marking operation of the product is completed, the control system controls the conveying mechanism to continue conveying the product and convey the next product to the marking position, without the need for manual material replacement operation, with a high degree of automation, which is beneficial to improving the marking efficiency, and without the need to use a special clamping fixture, which is beneficial to reducing the manufacturing cost.

[0007] Preferably, the conveying mechanism includes a support frame, conveying rollers, a conveyor belt and a first driving member. The support frame is fixedly arranged on the tabletop of the workbench. The number of the conveying rollers is several. The several conveying rollers are rotatably connected to the support frame, and the several conveying rollers are arranged at intervals and in parallel on the same horizontal plane. The conveyor belt is wound around the several conveying rollers. The first driving member is arranged on the support frame for driving the conveying rollers to rotate. The conveying path of the conveyor belt passes through the marking position of the marking mechanism. The first driving member is electrically connected to the control system.

[0008] By adopting the above technical solution, the support frame supports the conveying rollers, the conveyor belt and the first driving member. The control system controls the opening and closing of the first driving member. When the first driving member is started, the first driving member drives the conveying rollers to rotate, and the rotation of the conveying rollers drives the conveyor belt to convey, so as to realize the conveying of the product. When the product is conveyed to the marking position of the marking mechanism, the control system controls the first driving member to close, and the conveyor belt stops conveying the product so that the product stays at the marking position, facilitating the marking mechanism to perform a marking operation on the product.

[0009] Preferably, the support frame is provided with a guiding component for guiding the conveying path of the product. The guiding component includes two guiding blocks. The two guiding blocks are respectively arranged on both sides of the conveying direction of the conveyor belt and are arranged along the conveying direction of the conveyor belt. A channel for the product to be conveyed to the marking position of the marking mechanism is formed between the two guiding blocks.

[0010] By adopting the above technical solution, the two guide blocks form a channel for conveying the product to the marking position. The two guide blocks limit and guide the conveying path of the product, which is beneficial to improving the stability of the product conveying process and the accuracy of conveying to the marking position.

[0011] Preferably, the guide assembly further comprises an adjusting member, and the adjusting member is disposed on the support frame and is used to drive the guide block to move along the width direction of the conveyor belt.

[0012] By adopting the above technical solution, when changing products of different specifications and models for marking operation, the adjustment member drives the guide block to move along the width direction of the conveyor belt to adjust the gap width between the two guide blocks, thereby adapting to products of different specifications and models for transportation, which is conducive to improving applicability.

[0013] Preferably, a sensor is provided on the support frame, the sensor is located at one side of the conveying path of the conveyor belt and directly facing the marking position of the marking mechanism, and the sensor is electrically connected to the control system.

[0014] By adopting the above technical solution, when the product is transported to the marking position of the marking mechanism, the sensor senses that the product has been transported to the marking position and sends an electrical signal to the control system, so that the control system can control the conveying mechanism to stop the conveying operation and control the marking mechanism to perform the marking operation.

[0015] Preferably, the inlet end of the guide block is arranged to be arc-shaped and expanded.

[0016] By adopting the above technical solution, this arrangement facilitates the product to enter the conveying channel between the two guide blocks through the arc-shaped expansion arrangement.

[0017] Preferably, the guide block is hollow, and adjustment grooves are spaced apart at positions where the guide block is arc-shaped and expanded, and the adjustment grooves are connected to the hollow portion of the guide block.

[0018] By adopting the above technical solution, the guide block is hollow and cooperates with the setting of the arc-shaped expansion position adjustment groove of the guide block, so that the staff can easily bend the entrance end of the guide block to adjust the expansion size to accommodate different specifications and models of products to smoothly enter the conveying channel.

[0019] Preferably, the workbench is also provided with an exhaust mechanism, which includes an exhaust pipe, which is fixed on the workbench, with the exhaust pipe opening of the exhaust pipe facing the marking position of the marking mechanism, and the other end of the exhaust pipe is connected to the exhaust gas treatment system.

[0020] By adopting the above technical solution, the exhaust duct sucks the waste gas generated by the marking operation towards the waste gas treatment system for collection and treatment, which is beneficial to purify the production environment and thus beneficial to ensuring the physical health of the staff.

[0021] Preferably, a filter cover is provided on the exhaust duct mask of the exhaust duct.

[0022] By adopting the above technical solution, the filter cover filters the fine particle debris generated by the marking operation, which is beneficial to preventing damage to the waste gas treatment system.

[0023] Preferably, the support frame is provided with a collection component for collecting the products after the marking operation is completed. The collection component includes an inclined plate and a collection box. The inclined plate is connected to the support frame at the position of the end of the conveyor belt. The top end of the inclined plate is docked with the conveying plane of the conveyor belt, and the collection box is located directly below the bottom end of the inclined plate.

[0024] By adopting the above technical solution, when the marking operation of the product is completed, the conveyor belt continues to convey the product. When the product is conveyed to the end of the conveyor belt, the product slides down through the inclined plate into the collection box for automatic collection. The setting of the inclined plate is beneficial to reducing the damage caused by the product during the falling process, and thus beneficial to improving the quality of the product.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting a marking mechanism, a conveying mechanism and a control system, when it is necessary to perform a marking operation on a product, only the product needs to be placed in the conveying mechanism, and the conveying mechanism conveys the product. When the conveying mechanism conveys the product to the marking position of the marking mechanism, the control system controls the conveying mechanism to stop conveying so that the product stays at the marking position. At the same time, the control system controls the marking mechanism to perform a marking operation on the product. When the marking operation of the product is completed, the control system controls the conveying mechanism to continue conveying the product and conveys the next product to the marking position, without the need for manual material replacement operation, with a high degree of automation, which is beneficial to improving the marking efficiency, and without the need to use special clamping fixtures, which is beneficial to reducing the manufacturing cost.

[0026] 2. By setting an adjusting member, when replacing products of different specifications and models for marking operations, the adjusting member drives the guide block to move along the width direction of the conveyor belt to adjust the gap width between the two guide blocks, so as to adapt to the conveying of products of different specifications and models, which is beneficial to improving the applicability.

[0027] 3. By providing an adjustment groove at the position where the guiding block has an arc-shaped flared opening, and the adjustment groove communicates with the hollow part of the guiding block, it enables the staff to easily bend the inlet end of the guiding block, thereby achieving the adjustment of the flared opening size to accommodate the smooth entry of products of different specifications and models into the conveying channel. Brief Description of the Drawings

[0028] Figure 1 is a schematic diagram of the overall structure of the automatic laser marking machine in the embodiment of the present application.

[0029] Figure 2 is a schematic diagram of the structure of the marking mechanism and the control system in the embodiment of the present application.

[0030] Figure 3 is a schematic diagram of the structure of the conveying mechanism in the embodiment of the present application.

[0031] Figure 4 is Figure 3 an enlarged view of part A in

[0032] Description of the Reference Numerals: 1, workbench; 2, marking mechanism; 21, marking head; 22, second driving member; 3, conveying mechanism; 31, support frame; 32, conveying roller; 33, conveyor belt; 34, first driving member; 4, control system; 5, guiding assembly; 51, guiding block; 52, adjusting member; 6, infrared sensor; 7, adjustment groove; 8, exhaust duct; 9, filter cover; 10, collection assembly; 101, inclined plate; 102, collection box. Detailed Description of the Embodiment

[0033] The following Figures 1-4 further elaborates on the present application in detail with reference to the attached drawings.

[0034] The embodiment of the present application discloses an automatic laser marking machine. Referring to Figure 1 , it includes a workbench 1, on which a marking mechanism 2, a conveying mechanism 3, and a control system 4 are provided. The marking mechanism 2 performs the marking action. The conveying mechanism 3 is arranged on the tabletop of the workbench 1 for horizontally conveying products, and the conveying path of the conveying mechanism 3 passes through the marking position of the marking mechanism 2. The control system 4 is electrically connected to the marking mechanism 2 and the conveying mechanism 3. When the conveying mechanism 3 conveys the product to the marking position of the marking mechanism 2, the control system 4 controls the conveying mechanism 3 to stop the conveying operation, and at the same time controls the marking mechanism 2 to perform the marking operation. When the marking operation of the product at the marking position of the marking mechanism 2 is completed, the control system 4 controls the conveying mechanism 3 to continue the conveying operation, and at the same time controls the marking mechanism 2 to stop the marking operation. There is no need for manual material replacement operation, and the degree of automation is high, which is beneficial to improving the marking efficiency. Moreover, there is no need to use special clamping fixtures, which is beneficial to reducing the manufacturing cost.

[0035] Referring toFigure 1 and Figure 2 The marking mechanism 2 includes a marking head 21 and a second driving member 22, and both the marking head 21 and the second driving member 22 are electrically connected to the control system 4. The control system 4 controls the second driving member 22 to drive the marking head 21 to move in the directions of the X, Y, and Z axes, and controls the marking head 21 to perform a marking operation to achieve the marking process. In this embodiment, the second driving member 22 is in the form of a motor screw rod to drive the movement of the marking head 21 in the X, Y, and Z axis directions, and the driving path is controlled by the control system 4. In other embodiments, other driving methods can also be used as long as the driving of the marking head 21 is satisfied, and no further limitation is made here.

[0036] Refer to Figure 1 and Figure 3 As shown in FIGS. and, the conveying mechanism 3 includes a support frame 31, conveying rollers 32, a conveyor belt 33, and a first driving member 34. The support frame 31 is horizontally and fixedly arranged on the tabletop of the workbench 1. The number of the conveying rollers 32 is set to be several. The several conveying rollers 32 are rotatably connected to the support frame 31 along the length direction of the conveying frame, and the several conveying rollers 32 are arranged at intervals and in parallel on the same horizontal plane. The conveyor belt 33 is wound around the several conveying rollers 32. The first driving member 34 is arranged on the support frame 31 to drive the conveying rollers 32 to rotate. It should be noted that the conveying path of the conveyor belt 33 passes through the marking position of the marking head 21, and the first driving member 34 is electrically connected to the control system 4. In this embodiment, the first driving member 34 is set as a driving motor, and the driving motor is fixed at the end of the support frame 31. The output shaft of the driving motor is coaxially and fixedly connected to one of the conveying rollers 32 to realize the driving rotation of the conveying rollers 32.

[0037] Refer to Figure 2 and Figure 3 As shown in FIGS. and, the support frame 31 is provided with a guiding assembly 5 for guiding the conveying path of the product. Specifically, the guiding assembly 5 includes two guiding blocks 51. The two guiding blocks 51 are arranged in a long strip shape. The two guiding blocks 51 are respectively arranged on both sides of the conveying direction of the conveyor belt 33 and are arranged along the conveying direction of the conveyor belt 33. A channel for the product to be conveyed to the marking position of the marking head 21 is formed between the two guiding blocks 51 to improve the stability and accuracy of the product conveying process.

[0038] Refer to Figure 3, the guiding assembly 5 further includes an adjusting member 52. The adjusting member 52 is arranged on the support frame 31 and is used to drive the guiding block 51 to move along the width direction of the conveyor belt 33, so as to adjust the width of the passage for the product to pass between the two guiding blocks 51, thereby adapting to the conveying of products of different model specifications. In this embodiment, the adjusting member 52 is selected in the form of a cylinder to adjust the position of the guiding block 51. In other embodiments, manual adjustment can also be carried out in the form of bolts, as long as the gap width between the two guiding blocks 51 can be adjusted, and no further limitation is made here.

[0039] Refer to Figure 3 and Figure 4 , the inlet end of the guiding block 51 is arranged with an arc-shaped flaring, so as to facilitate the product to enter the conveying channel between the two guiding blocks 51 through the arc-shaped flaring. Further, the guiding block 51 is arranged in a hollow shape. At the same time, adjusting grooves 7 are spaced apart at the position where the guiding block 51 is arranged with an arc-shaped flaring. The adjusting grooves 7 are communicated with the hollow part of the guiding block 51, so that the staff can easily bend the inlet end of the guiding block 51, thereby realizing the adjustment of the flaring size, and further adapting to the smooth entry of products of different specifications into the conveying channel. It is worth mentioning that this setting makes the inlet end of the guiding block 51 always maintain an arc shape when the staff bends the inlet end of the guiding block 51.

[0040] Refer to Figure 2 and Figure 3 , a sensor is arranged on the support frame 31. The sensor is located on one side of the conveying path of the conveyor belt 33 and is directly opposite to the marking position of the marking head 21, and the sensor is electrically connected to the control system 4. In this embodiment, the sensor is selected as an infrared sensor 6. When the product is conveyed to the marking position, the infrared sensor 6 senses the product and sends an electrical signal to the control system 4. After receiving the electrical signal, the control system 4 controls the driving motor to stop working so that the product stays at the marking position. At the same time, the control system 4 controls the marking head 21 and the second driving member 22 to cooperate to perform a marking operation on the product; after the marking operation is completed, the control system 4 controls the driving motor to continue working so that the product after the marking operation continues to be conveyed backward and conveys the subsequent product to be marked to the marking position, and at the same time the control system 4 controls the marking head 21 and the second driving member 22 to stop the marking operation, and waits for the next product to be marked to be conveyed to the marking position to perform the marking operation, and so on in a cycle and automatically.

[0041] Refer to Figure 3, an air extraction mechanism is also provided on the workbench 1. Specifically, the air extraction mechanism includes an air extraction pipe 8. One end of the air extraction pipe 8 is fixed on the workbench 1, and the air extraction port of the air extraction pipe 8 faces the marking position of the marking head 21. The other end of the air extraction pipe 8 is connected to an exhaust gas treatment system. During the marking process of the product, the air extraction pipe 8 extracts the toxic gases or exhaust gases generated by the marking operation and sends them to the exhaust gas treatment system for treatment to purify the production environment, thereby facilitating the protection of the physical health of the staff. In addition, a filter cover 9 is provided on the air extraction port of the air extraction pipe 8 to filter the fine particle debris generated by the marking operation, thereby preventing damage to the exhaust gas treatment system. It should be noted that the filter cover 9 is detachably connected to the air extraction pipe 8 to facilitate the cleaning of the filter cover 9.

[0042] Refer to Figure 3 , a collection component 10 for collecting the products after the marking operation is provided on the support frame 31. The collection component 10 automatically gathers the products after the marking operation, reducing manual operation and costs. Specifically, the collection component 10 includes an inclined plate 101 and a collection box 102. The inclined plate 101 is connected to the support frame 31 at the position of the end of the conveyor belt 33. The top end of the inclined plate 101 is docked with the conveying plane of the conveyor belt 33. The collection box 102 is located directly below the bottom end of the inclined plate 101, so that the products conveyed to the end of the conveyor belt 33 slide down the inclined plate 101 into the collection box 102 for collection.

[0043] The implementation principle of an automatic laser marking machine in an embodiment of this application is as follows: When a product needs to be marked, the product is placed on the conveyor belt 33. The conveyor belt 33 transports the product to the marking position of the marking head 21. During the transportation to the marking position, two guiding blocks 51 limit and guide the transportation of the product to improve the transportation stability and position accuracy. The inlet end of the guiding block 51 is arranged with an arc-shaped flaring to facilitate the product to enter the channel between the two guiding blocks 51 for transportation. The interval adjustment between the two guiding blocks 51 and the setting of the adjustment groove 7 are both adapted to products of different specifications and models. When the product is transported to the marking position, the infrared sensor 6 sends an electrical signal to the control system 4 after sensing the product. After receiving the electrical signal, the control system 4 controls the driving motor to stop working so that the product stays at the marking position. At the same time, the control system 4 controls the cooperation of the marking head 21 and the second driving member 22 to perform a marking operation on the product. The exhaust duct 8 synchronously extracts and processes the toxic gases and waste gases generated during the marking operation. After the marking operation is completed, the control system 4 controls the driving motor to continue working so that the product after the marking operation continues to be transported backward and the subsequent products to be marked are transported to the marking position. At the same time, the control system 4 controls the marking head 21 and the second driving member 22 to stop the marking operation, and waits for the next product to be marked to be transported to the marking position to perform the marking operation. The product after the marking operation slides down through the inclined plate 101 into the collection box 102 for automatic collection. The entire marking process of the product has a high degree of automation, which is beneficial to improving the marking efficiency, and has strong applicability. There is no need to use a special clamping fixture, which is beneficial to reducing the manufacturing cost.

[0044] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An automatic laser marking machine, characterized in that: The invention comprises a workbench (1), wherein a marking mechanism (2), a conveying mechanism (3) and a control system (4) are arranged on the workbench (1); the marking mechanism (2) performs marking operations; the conveying mechanism (3) is arranged on the workbench (1) surface for horizontally conveying products, and the conveying path of the conveying mechanism (3) passes through the marking position of the marking mechanism (2); and the control system (4) is electrically connected to the marking mechanism (2) and the conveying mechanism (3); When the conveying mechanism (3) conveys the product to the marking position of the marking mechanism (2), the control system (4) controls the conveying mechanism (3) to stop the conveying operation and controls the marking mechanism (2) to perform the marking operation; When the marking operation of the product at the marking position of the marking mechanism (2) is completed, the control system (4) controls the conveying mechanism (3) to continue the conveying operation, and at the same time controls the marking mechanism (2) to stop the marking operation.

2. The automatic laser marking machine according to claim 1, characterized in that: The conveying mechanism (3) comprises a support frame (31), a conveying roller (32), a conveying belt (33) and a first driving member (34); the support frame (31) is fixedly arranged on the table surface of the workbench (1); a plurality of the conveying rollers (32) are arranged; the plurality of the conveying rollers (32) are rotatably connected to the support frame (31); the plurality of the conveying rollers (32) are located on the same horizontal plane and are arranged in parallel at intervals; the conveying belt (33) surrounds the plurality of the conveying rollers (32); the first driving member (34) is arranged on the support frame (31) and is used to drive the conveying rollers (32) to rotate; the conveying path of the conveying belt (33) passes through the marking position of the marking mechanism (2); and the first driving member (34) is electrically connected to the control system (4).

3. The automatic laser marking machine according to claim 2, characterized in that: The support frame (31) is provided with a guide assembly (5) for guiding the conveying path of the product, and the guide assembly (5) includes two guide blocks (51). The two guide blocks (51) are arranged on both sides of the conveying direction of the conveyor belt (33) and are arranged along the conveying direction of the conveyor belt (33). A channel is formed between the two guide blocks (51) for conveying the product to the marking position of the marking mechanism (2).

4. The automatic laser marking machine according to claim 3, characterized in that: The guide assembly (5) further comprises an adjusting member (52), wherein the adjusting member (52) is arranged on the support frame (31) and is used to drive the guide block (51) to move along the width direction of the conveyor belt (33).

5. The automatic laser marking machine according to claim 2, characterized in that: The support frame (31) is provided with a sensor, the sensor is located on one side of the conveying path of the conveyor belt (33) and directly facing the marking position of the marking mechanism (2), and the sensor is electrically connected to the control system (4).

6. The automatic laser marking machine according to claim 3, characterized in that: The inlet end of the guide block (51) is arranged to be arc-shaped and expanded.

7. The automatic laser marking machine according to claim 6, characterized in that: The guide block (51) is hollow, and adjustment grooves (7) are arranged at intervals at the position where the guide block (51) is expanded in an arc shape, and the adjustment grooves (7) are connected to the hollow part of the guide block (51).

8. The automatic laser marking machine according to claim 1, characterized in that: The workbench (1) is also provided with an exhaust mechanism, the exhaust mechanism comprising an exhaust pipe (8), the exhaust pipe (8) being fixed on the workbench (1), the exhaust pipe (8) opening of the exhaust pipe (8) facing the marking position of the marking mechanism (2), and the other end of the exhaust pipe (8) being connected to an exhaust gas treatment system.

9. The automatic laser marking machine according to claim 8, characterized in that: The exhaust duct (8) has an exhaust duct housing provided with a filter housing (9).

10. The automatic laser marking machine according to claim 2, characterized in that: The support frame (31) is provided with a collecting assembly (10) for collecting products that have completed the marking operation, and the collecting assembly (10) comprises an inclined plate (101) and a collecting box (102), wherein the inclined plate (101) is connected to the support frame (31) at a position located at the conveying end of the conveyor belt (33), the top end of the inclined plate (101) is butted against the conveying plane of the conveyor belt (33), and the collecting box (102) is located directly below the bottom end of the inclined plate (101).

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