Laser welding machine for intaglio roller

Abstract

The utility model relates to a laser welding machine for a gravure plate roller, which is used for welding the gravure plate roller and comprises a rack and a feeding trolley, the feeding trolley is positioned at the bottom of the rack, and the laser welding machine further comprises a straight seam welding mechanism, a positioning clamping plate, a supporting mandrel, a centering mechanism and a key clamping mechanism, the supporting mandrel is connected with the rack, the key clamping mechanism is arranged at the top of the rack, the straight seam welding mechanism and the centering mechanism are connected with the rack, the positioning clamping plate is arranged on the side face of the rack, and the intaglio roller is fixed to the supporting mandrel through the feeding trolley, the positioning clamping plate and the key clamping mechanism. The key clamping mechanism and the intaglio roller are aligned through the centering mechanism. The intaglio roller is fixed on the supporting mandrel through the feeding trolley, the positioning clamping plate and the key clamping mechanism, so that the intaglio roller is clamped and fixed; and by arranging the positioning clamping plate, the distance between the to-be-welded joints is zero, and welding is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welders, in particular to a laser welder for a gravure printing plate roller. Background Art

[0002] The gravure roller is made of 20# seamless steel pipe or Q235 steel plate, which is welded together. Submerged arc welding is currently the main method for straight seam welding of rolled steel plates. This process requires the installation of arc starter and arc ender plates, which are then removed and polished smooth after welding.

[0003] The utility model patent with publication number CN114985882A discloses an automatic welding device for a hollow gravure roller and a clamping and welding method thereof. The device is equipped with a bracket lifting mechanism, a first positioning drive mechanism, a second positioning clamping mechanism, a first welding mechanism, a second welding mechanism, two submerged arc welding machines and a PLC control operation box around the hollow gravure roller blank to be welded. Through clamping, centering positioning of two disc top cones, positioning of two submerged arc welding guns and the seams to be welded, and a program controller PLC, the welding of the seams to be welded at both ends of the hollow gravure roller blank is automatically completed; this patent has the problem of high positioning requirements through clamping and centering positioning of two disc top cones, and needs to further improve automation and reliability.

[0004] Therefore, an automatic laser welding machine is provided which does not require the installation of an arc starting plate or an arc ending plate. Utility Model Content

[0005] The purpose of the utility model is to provide a laser welding machine for gravure printing plate roller in order to overcome the defects of the above-mentioned prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the utility model, a laser welder for a gravure plate roller is provided, which is used for welding the gravure plate roller. The laser welder includes a frame and a feeding trolley, and the feeding trolley is located at the bottom of the frame. The laser welder also includes a straight seam welding mechanism, a positioning clamping plate, a support core shaft, a centering mechanism and a key clamping mechanism. The support core shaft is connected to the frame, and the key clamping mechanism is arranged at the top of the frame. The straight seam welding mechanism and the centering mechanism are connected to the frame, and the positioning clamping plate is arranged on the side of the frame. The gravure plate roller is fixed to the support core shaft by the feeding trolley, the positioning clamping plate and the key clamping mechanism, and the key clamping mechanism and the gravure plate roller are aligned by the centering mechanism.

[0008] As a preferred technical solution, the frame further includes a cabinet, the cabinet is fixed to the outside of the frame, and the supporting core shaft is located on the cabinet.

[0009] As a preferred technical solution, the key clamping mechanism is located on the top of the cabinet.

[0010] As a preferred technical solution, the key clamping mechanism includes two key clamping units, the key clamping units are symmetrically arranged, and the key clamping units include a baffle and a clamping plate, and the baffle is located on both sides of the clamping plate.

[0011] As a preferred technical solution, the clamping plate is provided with an inclination angle.

[0012] As a preferred technical solution, the key clamping unit further includes a shaft and a core shaft, the baffle and the shaft are connected via the core shaft, and the clamping plate and the shaft are connected.

[0013] As a preferred technical solution, the clamping plate is provided with keys, and the keys are arranged at intervals.

[0014] As an optimal technical solution, the centering mechanism includes a centering vertical plate, the gravure plate roller is provided with a seam to be welded, the centering vertical plate is provided with an inclination angle, the centering vertical plate is located between the two key clamping units, and the seam to be welded and the centering vertical plate are aligned.

[0015] As an optimal technical solution, the straight seam welding mechanism includes a welding gun tilt adjustment unit, a welding gun moving unit and a welding gun, the welding gun is connected to the welding gun tilt adjustment unit, the welding gun tilt adjustment unit is connected to the welding gun moving unit, and the welding gun moving unit is connected to the frame.

[0016] As a preferred technical solution, the feeding trolley includes a loading plate and a lifting unit, and the loading plate is connected to the lifting unit.

[0017] Compared with the prior art, the present invention has the following effects:

[0018] 1. The gravure roller of the utility model is fixed on the supporting core shaft through the feeding trolley, the positioning clamping plate and the key clamping mechanism, thereby completing the clamping and fixing of the gravure roller; by setting the positioning clamping plate, the spacing of the seam to be welded is made 0, thus completing the welding.

[0019] 2. The utility model realizes the alignment of the welding seam of the gravure plate roller and the piano key clamping mechanism by setting a centering mechanism, which makes it easier to avoid errors when welding with a welding gun.

[0020] 3. The centering vertical plate of the utility model is provided with an inclined angle, which facilitates the centering vertical plate to extend into the welded seam of the gravure printing plate roller. At the same time, an inclined angle is provided on the clamping plate to facilitate welding.

[0021] 4. The utility model is provided with keys on the clamping plate, so that the clamping force is evenly distributed during clamping, thus avoiding deviation or deformation of the gravure printing plate roller.

[0022] 5. The utility model uses a laser welding gun, so there is no need to install an arc starting plate or an arc ending plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 It is a side view of the utility model;

[0025] Figure 3 It is a top view of the utility model.

[0026] 1. Frame; 2. Cabinet; 3. Lifting unit; 4. Loading plate; 5. Positioning clamping plate; 6. Support mandrel; 7. Baffle; 8. Mandrel; 9. Shaft; 10. Clamping plate; 11. Keys; 12. Centering vertical plate; 13. Welding gun; 14. Welding gun tilt adjustment unit; 15. Welding gun moving unit; 16. Gravure roller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] The gravure printing roller is made of 20# seamless steel pipe or Q235 steel plate, which is welded together. Submerged arc welding is currently the primary method for straight seam welding of coiled plates. This process requires the installation of arc starter and arc ender plates, which are then removed and polished to a smooth finish after welding. Existing technology has high positioning requirements, requiring further improvements in automation and reliability.

[0029] Therefore, the utility model provides a laser welding machine for a gravure roller. The gravure roller of the utility model is fixed on the supporting core shaft by a feeding trolley, a positioning clamping plate and a key clamping mechanism, so as to complete the clamping and fixing of the gravure roller; by setting the positioning clamping plate, the spacing of the seams to be welded is made 0, and welding is completed; the utility model realizes the alignment of the seams to be welded of the gravure roller and the key clamping mechanism by setting a centering mechanism, so that there will be no error when the welding gun is welded; the centering vertical plate of the utility model is provided with an inclination angle, so that the centering vertical plate is convenient for extending into the seam to be welded of the gravure roller, and at the same time, an inclination angle is provided on the clamping plate for convenient welding; the utility model is provided with a key on the clamping plate, so that the clamping force is evenly distributed during clamping, thereby avoiding deviation or deformation of the gravure roller; the utility model does not need to install an arc starting plate or an arc closing plate by using a laser welding gun.

[0030] Example 1

[0031] like Figure 1 As shown, a laser welder for a gravure plate roller is used to weld the gravure plate roller 16. The laser welder includes a frame 1 and a feeding trolley, and the feeding trolley is fixed to the bottom of the frame 1. The laser welder also includes a straight seam welding mechanism, a positioning clamping plate 5, a supporting core shaft 6, a centering mechanism and a key clamping mechanism. The supporting core shaft 6 is connected to the frame 1, and the key clamping mechanism is arranged on the top of the frame 1. The straight seam welding mechanism and the centering mechanism are connected to the frame 1, and the positioning clamping plate 5 is arranged on the side of the frame 1. The gravure plate roller 16 is fixed on the supporting core shaft 6 through the feeding trolley, the positioning clamping plate 5 and the key clamping mechanism. The key clamping mechanism and the gravure plate roller 16 are aligned through the centering mechanism.

[0032] In this embodiment, the roller material of the gravure roller 16 is 20# seamless steel pipe or Q235 steel plate rolled and welded. The working process of the utility model is: the steel plate is rolled into the gravure roller 16 and the seam to be welded is formed, the gravure roller 16 is placed on the feeding trolley, and the feeding trolley lifts the gravure roller 16 to the same height as the supporting core shaft 6, and then the feeding trolley enters the interior of the frame 1, and the supporting core shaft 6 is inserted into the gravure roller 6, and the seam to be welded of the gravure roller 16 is located above the supporting core shaft 6; the centering vertical plate 12 of the centering mechanism is sequentially extended into the key clamping mechanism and the seam to be welded of the gravure roller 16 to realize the alignment of the seam to be welded of the gravure roller 16 with the key clamping mechanism; the clamping of the gravure roller 16 is completed by the key clamping mechanism, the positioning clamping plate 5 and the feeding trolley Tighten, then loosen the positioning clamping plate 5 on one side. Due to the clamping of the gravure roller 16 by the key clamping mechanism, the gravure roller 16 will not move, and the centering vertical plate 12 is gradually lifted until it completely leaves the top of the key clamping mechanism, and then tighten the loosened positioning clamping plate 5. The seam to be welded is gradually reduced by the positioning clamping plate 5 until it is closed, thereby achieving the clamping and positioning of the gravure roller 16; then the welding gun 13 welds the seam to be welded, and since the centering vertical plate 12 has left the key clamping mechanism, it will not affect the welding operation of the welding gun; the welding gun is connected to a welding gun inclination adjustment unit 14, which can adjust the welding gun angle, and the welding gun inclination adjustment unit 14 is connected to a welding gun moving unit, which can realize the movement of the welding gun; finally, the welded gravure roller 16 is sent out by the feeding trolley.

[0033] The frame 1 further includes a cabinet 2 , which is fixed to the outside of the frame 1 , and the supporting core shaft 6 is located on the cabinet 2 .

[0034] The key clamping mechanism is located on the top of the cabinet 2 .

[0035] The key clamping mechanism includes two key clamping units, which are symmetrically arranged. The key clamping units include a baffle 7 and a clamping plate 10 , and the baffle 7 is located on both sides of the clamping plate 10 .

[0036] The clamping plate 10 is provided with an inclination angle.

[0037] The key clamping unit further includes a shaft body 9 and a core shaft 8 . The baffle 7 and the shaft body 9 are connected via the core shaft 8 , and the clamping plate 10 is connected to the shaft body 9 .

[0038] The clamping plate 10 is provided with keys 11 , and the keys 11 are arranged at intervals.

[0039] In this embodiment, the clamping plate 10 is provided with a plurality of keys 11, which strengthen the strength of the clamping plate when pressing the product to be welded, so that the clamping force is evenly distributed during clamping, thereby avoiding deviation or deformation of the gravure roller.

[0040] The centering mechanism includes a centering vertical plate 12, the gravure plate roller 16 is provided with a seam to be welded, the centering vertical plate 12 is provided with an inclination angle, the centering vertical plate 12 is located between the two key clamping units, the seam to be welded and the centering vertical plate 12 are aligned, and the gravure plate roller 16 is first placed on the supporting core shaft 6 for pre-positioning.

[0041] In this embodiment, the seam to be welded of the centering vertical plate 12 and the gravure plate roller is aligned, and the seam to be welded is located in the middle of the two key clamping units, so that the positioning of the seam to be welded is achieved. At the same time, the centering vertical plate 12 and the key clamping unit are provided with an inclination angle, and the centering vertical plate 12 can extend into the seam to be welded; through the coordination between the inclination angles, while ensuring that the distance between the two key clamping units is small, the centering vertical plate 12 can be extended therein, which is convenient for positioning; the inclination angles of the two key clamping units cooperate with each other to form a larger space, and the welding gun 13 can be moved to a closer distance for welding.

[0042] The straight seam welding mechanism includes a welding gun tilt adjustment unit 14, a welding gun moving unit 15 and a welding gun 13, wherein the welding gun 13 is connected to the welding gun tilt adjustment unit 14, the welding gun tilt adjustment unit 14 is connected to the welding gun moving unit 15, and the welding gun moving unit 15 is connected to the frame 1.

[0043] The feeding trolley includes a loading plate 4 and a lifting unit 3 , and the loading plate 4 is connected to the lifting unit 3 .

[0044] In this embodiment, the welding gun inclination adjustment unit 14 can adjust the angle of the welding gun to achieve better welding effect. A rack is provided on the frame 1, and the welding gun moving unit 15 is provided on the rack. The rack is parallel to the seam to be welded to realize the movement of the welding gun 15. The welding gun 15 is linear welding; the welding gun 13 is a laser welding gun, and the welding gun 13 is connected to a 3KW laser welding system.

[0045] The laser welding machine is suitable for processing products with a diameter between φ140-φ350mm, a product length ≤1150mm, a product thickness ≤4.5mm, and a product material of Q235.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A laser welder for a gravure plate roller, used for welding a gravure plate roller (16), the laser welder comprising a frame (1) and a feeding trolley, the feeding trolley being located at the bottom of the frame (1), characterized in that: The laser welding machine further comprises a straight seam welding mechanism, a positioning clamping plate (5), a supporting core shaft (6), a centering mechanism and a key clamping mechanism, wherein the supporting core shaft (6) is connected to the frame (1), the key clamping mechanism is arranged on the top of the frame (1), the straight seam welding mechanism and the centering mechanism are connected to the frame (1), the positioning clamping plate (5) is arranged on the side of the frame (1), the gravure plate roller (16) is fixed on the supporting core shaft (6) through the feeding trolley, the positioning clamping plate (5) and the key clamping mechanism, and the key clamping mechanism and the gravure plate roller (16) are aligned through the centering mechanism.

2. The laser welding machine for gravure printing plate roller according to claim 1, characterized in that: The frame (1) further comprises a cabinet (2), the cabinet (2) being fixed to the outside of the frame (1), and the supporting core shaft (6) being located on the cabinet (2).

3. The laser welding machine for gravure printing plate roller according to claim 2, characterized in that: The key clamping mechanism is located on the top of the cabinet (2).

4. The laser welding machine for gravure printing plate roller according to claim 1, characterized in that: The key clamping mechanism comprises two key clamping units, the key clamping units are symmetrically arranged, the key clamping units comprise a baffle (7) and a clamping plate (10), and the baffle (7) is located on both sides of the clamping plate (10).

5. The laser welding machine for gravure printing plate roller according to claim 4, characterized in that: The clamping plate (10) is provided with an inclination angle.

6. The laser welding machine for gravure printing plate roller according to claim 4, characterized in that: The key clamping unit further comprises a shaft body (9) and a core shaft (8); the baffle (7) and the shaft body (9) are connected via the core shaft (8); and the clamping plate (10) and the shaft body (9) are connected.

7. The laser welding machine for gravure printing plate roller according to claim 4, characterized in that: The clamping plate (10) is provided with piano keys (11), and the piano keys (11) are arranged at intervals.

8. The laser welding machine for gravure printing plate roller according to claim 4, characterized in that: The centering mechanism comprises a centering vertical plate (12), the gravure plate roller (16) is provided with a seam to be welded, the centering vertical plate (12) is provided with an inclination angle, the centering vertical plate (12) is located between two key clamping units, and the seam to be welded and the centering vertical plate (12) are aligned.

9. The laser welding machine for gravure printing plate roller according to claim 1, characterized in that: The straight seam welding mechanism comprises a welding gun inclination adjustment unit (14), a welding gun moving unit (15) and a welding gun (13); the welding gun (13) is connected to the welding gun inclination adjustment unit (14); the welding gun inclination adjustment unit (14) is connected to the welding gun moving unit (15); and the welding gun moving unit (15) is connected to a frame (1).

10. The laser welding machine for gravure printing plate roller according to claim 1, characterized in that: The feeding trolley comprises a loading plate (4) and a lifting unit (3), and the loading plate (4) is connected to the lifting unit (3).

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