A double-station laser welding device

Abstract

The utility model provides a double-station laser welding device, including a frame, a traveling frame connected to the frame through a traveling rail transmission, and a laser welding head fixedly installed on the outside of the traveling frame, the inner side of the frame is fixedly installed with a first slide rail and a second slide rail distributed up and down, and the outer sides of the tops of the first slide rail and the second slide rail are respectively slidably connected with a first loading platform and a second loading platform of the same structure. The double-station laser welding device can drive the first loading platform and the second loading platform to move along the first slide rail and the second slide rail through the drive of a servo motor, and can alternately switch the workstations of the two, that is, one performs loading and unloading operations and the other performs welding operations. With this structure, workers can load and unload the first loading platform and the second loading platform at the same position, and the workers do not need to walk back and forth, which can reduce the workload of the workers.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, and specifically discloses a double-station laser welding device. Background Art

[0002] The cabinets in office furniture are made of stainless steel, so laser welding equipment is needed to weld the cabinets. The existing double-station laser welding device achieves double-station welding by switching the position of the laser welding head. Since the position of the tooling fixture cannot be switched, workers need to walk back and forth between the two tooling fixtures to take and place the cabinet doors, which increases the workload of the workers. In addition, the laser welding head is used for position switching, and its position changes in the horizontal direction. Therefore, the laser welding device needs to set two welding routes to complete the double-station processing. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a double-station laser welding device, comprising a frame, a traveling frame connected to the top of the frame through a traveling rail transmission, and a laser welding head fixedly installed on the outside of the traveling frame, the inner side of the frame is fixedly installed with a first slide rail and a second slide rail distributed up and down, the outer sides of the tops of the first slide rail and the second slide rail are respectively slidably connected with a first loading platform and a second loading platform of the same structure, the interiors of the tops of the first loading platform and the second loading platform are fixedly installed with positioning blocks and limiting mechanisms by bolts, and a belt transmission mechanism rotatably connected to the inside of the frame is fixedly installed between the first loading platform and the second loading platform.

[0004] Preferably, threaded holes which are distributed at equal intervals and are compatible with bolts are penetrated inside the first loading platform and the second loading platform.

[0005] Preferably, the belt transmission mechanism includes a driving shaft and a driven shaft rotatably connected inside a frame and a servo motor fixedly mounted on the bottom of the frame, the outer sides of both ends of the driving shaft are fixedly mounted with a first pulley, and the outer side of one end of the driving shaft is fixedly mounted with a second pulley located above the servo motor, the driven shaft is symmetrically distributed on both sides of the inner side of the frame, and the outer side of one end of the driven shaft is fixedly mounted with a third pulley, the outer side of the output shaft of the servo motor is fixedly mounted with a fourth pulley, the outer sides of the first pulley and the third pulley are fixedly mounted with a first synchronous belt, the outer sides of the second pulley and the fourth pulley are jointly mounted with a second synchronous belt, and the outer side of the first synchronous belt is fixedly mounted with a first fixing frame and a second fixing frame which are respectively fixedly connected to the first loading platform and the second loading platform.

[0006] Preferably, the limiting mechanism includes a fixing plate fixedly installed on the top of the first loading platform and the second loading platform by bolts, the first cylinder is fixedly installed in the middle of the top of the fixing plate, and the fixing plate is internally movably sleeved with a first guide rod and a second guide rod symmetrically distributed on the outside of the first cylinder, the first guide rod and the second guide rod extending out of the fixing plate have a common movably sleeved with a fixing block fixedly sleeved on the outside of one end of the first cylinder on the outside, and the first guide rod and the second guide rod extending out of the fixing block have a common fixedly sleeved with a pressure block on the outside, the first guide rod and the second guide rod extending out of the fixing block have a spring located between the fixing block and the pressure block on the outside, the second guide rod has a ring-shaped boss located between the fixing block and the pressure block on the outside, the second cylinder is fixedly installed on the top of the fixing block, the pressure plate is fixedly sleeved with a pressure plate on the outside, and the pressure plate has a limiting rod arranged on the top of the fixing block on the inside of the pressure plate.

[0007] Preferably, a clamping ring located between the fixing plate and the fixing block is clamped on the outer side of one end of the first guide rod.

[0008] Beneficial effects:

[0009] 1. The dual-station laser welding device can drive the first loading platform and the second loading platform to move along the first slide rail and the second slide rail through the drive of the servo motor, and can switch the two working positions alternately, that is, one is for loading and unloading operations and the other is for welding operations. With this structure, workers can load and unload the first loading platform and the second loading platform at the same position, and workers do not need to walk back and forth, which can reduce the workload of workers.

[0010] 2. The double-station laser welding device, through the coordinated use of bolts and threaded holes, enables the first stage and the second stage to install the same structural positioning blocks and limit mechanisms at the same points, so that the materials clamped on the first stage and the second stage can be distributed equidistantly in the horizontal X and Y directions. At the same time, the laser welding device can use the same welding route for the materials on the first stage and the second stage. It only needs to change the height of the welding head in the Z direction to achieve the welding operation of the materials. The welding method adopted allows the welding head to be away from the loading and unloading stations of the materials, which is safer for workers to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2It is a front schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the back side of the structure of the utility model;

[0015] Figure 4 for Figure 1 A magnified schematic diagram of the structure at center A;

[0016] Figure 5 for Figure 2 A magnified schematic diagram of the structure at B in the figure.

[0017] In the figure: 1, frame; 2, travel track; 3, travel frame; 4, laser welding head; 5, first slide rail; 6, second slide rail; 7, first loading platform; 8, second loading platform; 9, bolt; 10, positioning block; 11, limiting mechanism; 111, fixing plate; 112, first cylinder; 113, first guide rod; 114, second guide rod; 115, fixing block; 116, pressing block; 117, spring; 118, annular boss; 11 9. Second cylinder; 1110. Pressing plate; 1111. Limiting rod; 12. Belt transmission mechanism; 121. Driving shaft; 122. Driven shaft; 123. Servo motor; 124. First pulley; 125. Second pulley; 126. Third pulley; 127. Fourth pulley; 128. First synchronous belt; 129. Second synchronous belt; 1210. First fixing bracket; 1211. Second fixing bracket; 13. Threaded hole; 14. Snap ring. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0019] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0020] See also Figure 1-5A double-station laser welding device includes a frame 1, a traveling frame 3 connected to the frame 1 through a traveling rail 2, and a laser welding head 4 fixedly installed on the outside of the traveling frame 3. A first slide rail 5 and a second slide rail 6 distributed up and down are fixedly installed on the inner side of the frame 1. The outer sides of the tops of the first slide rail 5 and the second slide rail 6 are respectively slidably connected with a first loading platform 7 and a second loading platform 8 of the same structure. The tops of the first loading platform 7 and the second loading platform 8 are fixedly installed with a positioning block 10 and a limiting mechanism 11 through bolts 9. A belt transmission mechanism 12 rotatably connected to the inside of the frame 1 is fixedly installed between the first loading platform 7 and the second loading platform 8.

[0021] Among them, the interiors of the first stage 7 and the second stage 8 are penetrated by threaded holes 13 which are distributed at equal intervals and matched with the bolts 9. By using the threaded holes 13 in conjunction with the bolts 9, the laser welding device can adjust the positions of the positioning blocks 10 and the belt transmission mechanism 12 according to the size of the material, while ensuring that the positioning blocks 10 and the belt transmission mechanism 12 are distributed at equal intervals on the first stage 7 and the second stage 8, respectively, ensuring that the laser welding device can press and fix materials of different sizes through the cooperation of the positioning blocks 10 and the belt transmission mechanism 12.

[0022] The belt transmission mechanism 12 includes a driving shaft 121 and a driven shaft 122 rotatably connected to the inside of the frame 1, and a servo motor 123 fixedly installed at the bottom of the frame 1. The outer sides of both ends of the driving shaft 121 are fixedly sleeved with a first pulley 124, and the outer side of one end of the driving shaft 121 is fixedly sleeved with a second pulley 125 located above the servo motor 123. The driven shaft 122 is symmetrically distributed on both sides of the inner side of the frame 1, and the outer side of one end of the driven shaft 122 is fixedly sleeved with a third pulley 126. The outer side of the output shaft of the servo motor 123 is fixedly sleeved with a fourth pulley 127. The outer sides of the first pulley 124 and the third pulley 126 are fixedly sleeved with a first synchronous belt 128, and the outer sides of the second pulley 125 and the fourth pulley 127 are jointly sleeved with a second synchronous belt 126. 9. The outer fixed sleeve of the first synchronous belt 128 is provided with a first fixed frame 1210 and a second fixed frame 1211 which are respectively fixedly connected to the first loading platform 7 and the second loading platform 8. The servo motor 123 can drive the first synchronous belt 128 to move back and forth equidistantly around the first pulley 124 and the third pulley 126, and then the fourth pulley 127 can drive the first loading platform 7 and the second loading platform 8 to move synchronously and equidistantly in opposite directions through the first fixed frame 1210 and the second fixed frame 1211, respectively, to ensure that the positions of the first loading platform 7 and the second loading platform 8 in the X and Y directions are the same when they are under the laser welding head 4, so that after the positions of the two are switched, the material can be welded by changing the height of the laser welding head 4 in the Z direction.

[0023] Among them, the limiting mechanism 11 includes a fixing plate 111 fixedly installed on the top of the first loading platform 7 and the second loading platform 8 by bolts 9, a first cylinder 112 is fixedly installed in the middle of the top of the fixing plate 111, and the internal movable sleeve of the fixing plate 111 is provided with a first guide rod 113 and a second guide rod 114 symmetrically distributed on the outside of the first cylinder 112, the first guide rod 113 and the second guide rod 114 extend out of the fixing plate 111. The outer side of one end of the fixing plate 111 is jointly movable sleeved with a fixing block 115 fixedly sleeved on the outer side of one end of the first cylinder 112, and the outer side of one end of the fixing block 115 is jointly fixedly sleeved with a pressing block 116, and the first A spring 117 located between the fixed block 115 and the pressure block 116 is sleeved on the outer side of one end of the guide rod 113, and an annular boss 118 located between the fixed block 115 and the pressure block 116 is arranged on the outer side of one end of the second guide rod 114. A second cylinder 119 is fixedly installed on the top of the fixed block 115, and a pressure plate 1110 is fixedly sleeved on the outer side of the top of the second cylinder 119. The internal movably sleeve of the pressure plate 1110 is connected with a limiting rod 1111 arranged on the top of the fixed block 115. The pressure plate 1110 is driven by the second cylinder 119 to press and fix the material again after being pressed and fixed by the pressure block 116, so as to prevent the material from shaking during the movement of the first loading platform 7 and the second loading platform 8.

[0024] Among them, a clamping ring 14 located between the fixed plate 111 and the fixed block 115 is clamped on the outer side of one end of the first guide rod 113. The clamping ring 14 can limit the fixed block 115, so that when the fixed block 115 is driven by the first cylinder 112 to press the material, the pressing block 116 can pre-press the material through the elastic force of the spring 117, and when the fixed block 115 contacts the annular boss 118, the material can be pressed and fixed by the pressing block 116.

[0025] When welding the workpiece, the workpiece to be welded is placed on the first stage 7 and abutted against the outer side of the positioning block 10. The first cylinder 112 is started to drive the fixed block 115 to move, and the spring 117 is used to press the pressure block 116 to pre-tighten the workpiece, so that the workpiece can be completely close to the outer side of the positioning block 10. When the annular boss 118 contacts the pressure block 116, the pressure block 116 is used to press and fix the workpiece, and the second cylinder 119 is started to drive the pressure plate 1110 to press and fix the workpiece again, and the servo motor 123 is started. The drive of the servo motor 123 can drive the first synchronous belt 128 to reciprocate and move equidistantly around the first pulley 124 and the third pulley 126, and then the fourth pulley 127 can drive the first stage 7 and the second stage 8 to move synchronously and equidistantly in opposite directions through the first fixed frame 1210 and the second fixed frame 1211 respectively. When the first stage 7 is displaced to the bottom of the second stage 8, the laser welding head 4 is used to weld the workpiece. The unwelded workpiece is clamped on the second stage 8 by the above steps. After the welding of the workpiece on the first stage 7 is completed, the servo motor 123 is started, and the first stage 7 and the second stage 8 are driven to reset by the reverse drive of the servo motor 123. When the second stage 8 is displaced to the bottom of the laser welding head 4, the workpiece on the second stage 8 is welded by changing the height of the laser welding head 4 and following the same welding path. The second cylinder 119 is started to reset the pressure plate 1110, and the first cylinder 112 is started to reset the pressure block 116. The welded workpiece is removed from the first stage 7 to complete the welding operation of a single workpiece. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A double-station laser welding device, comprising a frame (1), a traveling frame (3) connected to the frame (1) via a traveling track (2), and a laser welding head (4) fixedly mounted on the outside of the traveling frame (3), characterized in that: A first slide rail (5) and a second slide rail (6) are installed on the inner side of the frame (1) and are distributed up and down. The outer sides of the tops of the first slide rail (5) and the second slide rail (6) are slidably connected to a first loading platform (7) and a second loading platform (8) of the same structure respectively. The tops of the first loading platform (7) and the second loading platform (8) are internally installed with positioning blocks (10) and limiting mechanisms (11) through bolts (9). A belt transmission mechanism (12) rotatably connected to the inside of the frame (1) is installed between the first loading platform (7) and the second loading platform (8).

2. A double-station laser welding device according to claim 1, characterized in that: The first loading platform (7) and the second loading platform (8) are both penetrated by threaded holes (13) which are distributed at equal intervals and are compatible with the bolts (9).

3. A double-station laser welding device according to claim 1, characterized in that: The belt transmission mechanism (12) comprises a driving shaft (121) and a driven shaft (122) rotatably connected to the inside of the frame (1), and a servo motor (123) mounted at the bottom of the frame (1); the outer sides of both ends of the driving shaft (121) are fixedly sleeved with a first pulley (124); the outer side of one end of the driving shaft (121) is fixedly sleeved with a second pulley (125) located above the servo motor (123); the driven shaft (122) is symmetrically distributed on both sides of the inner side of the frame (1), and the outer side of one end of the driven shaft (122) is fixedly sleeved with a third pulley (125) located above the servo motor (123); A pulley (126), a fourth pulley (127) is fixedly mounted on the outer side of the output shaft of the servo motor (123), a first synchronous belt (128) is fixedly mounted on the outer side of the first pulley (124) and the third pulley (126), a second synchronous belt (129) is commonly mounted on the outer side of the second pulley (125) and the fourth pulley (127), and a first fixed frame (1210) and a second fixed frame (1211) are fixedly mounted on the outer side of the first synchronous belt (128) and are respectively connected to the first loading platform (7) and the second loading platform (8).

4. A double-station laser welding device according to claim 1, characterized in that: The limiting mechanism (11) comprises a fixing plate (111) mounted on the top of the first loading platform (7) and the second loading platform (8) by means of bolts (9); a first cylinder (112) is mounted in the middle of the top of the fixing plate (111); a first guide rod (113) and a second guide rod (114) symmetrically distributed on the outside of the first cylinder (112) are mounted inside the fixing plate (111); a fixing block (115) mounted on the outside of one end of the first cylinder (112) is mounted on the outside of the first guide rod (113) and the second guide rod (114) extending out of the fixing plate (111); A pressure block (116) is commonly sleeved on the outer side of one end extending out of the fixed block (115); a spring (117) located between the fixed block (115) and the pressure block (116) is sleeved on the outer side of one end of the first guide rod (113); an annular boss (118) located between the fixed block (115) and the pressure block (116) is arranged on the outer side of one end of the second guide rod (114); a second cylinder (119) is installed on the top of the fixed block (115); a pressure plate (1110) is fixedly sleeved on the outer side of the top end of the second cylinder (119); and a limit rod (1111) arranged on the top of the fixed block (115) is movably sleeved inside the pressure plate (1110).

5. A double-station laser welding device according to claim 4, characterized in that: A clamping ring (14) located between the fixing plate (111) and the fixing block (115) is clamped on the outer side of one end of the first guide rod (113).

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