Laser welding equipment for machining

Abstract

The invention relates to the technical field of laser welding, in particular to laser welding equipment for machining, which comprises a rack, a conveyor, support plates, lead screw motors, sliding plates and the like, the conveyor is mounted on the rack, the support plates are connected to the front side and the rear side of the top of the rack, the lead screw motors are mounted on the support plates, and the sliding plates are slidably connected to the support plates. A lead screw of the lead screw motor is in threaded connection with the sliding plate. Workpieces can be welded through the laser welding head, pollutants generated in the welding process can be blocked through the blocking ring, the pollutants are prevented from splashing all around and being attached to the surface of the equipment, the maintenance cost is reduced, the service life of the equipment is prolonged, the pollutants in air can be filtered through the filter element, and the air quality is improved. Pollutants are prevented from polluting the workshop environment, so that threats to the health of workers can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to laser welding equipment for mechanical processing. Background Art

[0002] With the continuous development of modern industrial technology, the requirements for welding quality in the field of mechanical processing are getting higher and higher. Laser welding, as an efficient and precise connection method, has been widely used in metal material processing. The workpiece is locally heated to a molten state through a high-energy-density laser beam, thereby achieving a firm bond between materials.

[0003] In order to further improve the welding quality and stability, auxiliary gases are generally sprayed into the welding area during the welding process. These auxiliary gases can not only prevent the welding area from being oxidized or contaminated, but also effectively blow away the smoke and spatter generated during the welding process to ensure the cleanliness of the welding area.

[0004] Common auxiliary gases include inert gases such as argon, helium, nitrogen, or specific mixed gases. These auxiliary gases reduce the formation of plasma clouds, inhibit the ionization effect of metal vapor, and protect the weld from the influence of the external environment through physical and chemical effects. Auxiliary gases can also play a cooling role, helping the welding area to solidify quickly, thereby improving the weld morphology and mechanical properties.

[0005] During the laser welding process, although auxiliary gas is used to blow away the smoke and spatter in the welding area, these pollutants do not completely disappear. Instead, they are suspended in the welding area in the form of tiny particles or gas. Smoke and gaseous substances (such as metal vapor, oxides, etc.) suspended in the air will pollute the workshop environment. Long-term exposure to such an environment may threaten the health of workers. Moreover, these pollutants may also adhere to the surface of the equipment, increasing maintenance costs and reducing the service life of the equipment. Summary of the invention

[0006] In view of this, the present invention provides a laser welding equipment for mechanical processing, which can overcome the shortcomings that smoke and gaseous substances suspended in the air will pollute the workshop environment. Long-term exposure to such an environment may threaten the health of workers, and these pollutants may also adhere to the surface of the equipment, increasing maintenance costs and reducing the service life of the equipment.

[0007] The technical solution of the present invention is: a laser welding equipment for mechanical processing, including a frame, a conveyor, a support plate, a screw motor, a slide plate, a mounting plate, an electric guide rail 1, an electric guide rail 2, a mounting block, a laser welding head, a blocking ring, an air intake mechanism and a filtering mechanism, the frame is installed with a conveyor, the front and rear sides of the top of the frame are connected with support plates, the support plates are installed with screw motors, the support plates are slidably connected with slide plates, the screw of the screw motor and the slide plate are connected by threads, the slide plates are connected with mounting plates, the electric guide rail 1 is installed between the two mounting plates, the electric guide rail 2 is installed on the slider of the electric guide rail 1, the slider of the electric guide rail 2 is connected with a mounting block, the bottom of the mounting block is installed with a laser welding head and a blocking ring, the laser welding head is located in the blocking ring, the conveyor is used to transport the workpiece to the bottom of the laser welding head, the laser welding head welds the workpiece, the air intake mechanism is used to spray auxiliary gas to the welding area of ​​the workpiece, and the filtering mechanism is used to filter pollutants in the air.

[0008] In one embodiment, the air intake mechanism includes an air intake pipe and a connector. The mounting block is connected to the air intake pipe, the air intake pipe is located in the blocking ring, and the air intake pipe is connected to the connector.

[0009] In one embodiment, the filtering mechanism includes an exhaust pipe, an air pump and a filter element. The exhaust pipe is connected to the mounting block, an air pump is installed on the top of the mounting block, and a filter element for filtering pollutants in the air is connected between the suction end of the air pump and the exhaust pipe.

[0010] In one of the embodiments, a positioning mechanism is also included, which includes a sliding frame, a spring, a movable plate, a slide rod, a positioning plate, a screw and a pushing assembly. The sliding frames are slidably connected to the front and rear sides of the top of the frame, a spring is connected between the frame and the sliding frame, the sliding frames are connected to the movable plates, the sliding frames are slidably connected to the left and right sides of the lower part of the sliding frame, the two slide rods on the same sliding frame are commonly connected to the positioning plate, the movable plates are threadedly connected to the screws, the screws and the positioning plate are rotatably connected, and the pushing assembly is used to push the sliding frame to move the positioning plate so that the positioning plate can position the workpiece on the conveyor.

[0011] In one embodiment, the pushing assembly includes a connecting frame and a push plate. The top of the slide plate is connected to the connecting frame, and the top of the connecting frame is connected to the push plate. The push plate will contact the sliding frame during the downward movement and push the sliding frame to move the positioning plate so that the positioning plate can position the workpiece on the conveyor.

[0012] In one of the embodiments, a blocking mechanism is further included, which includes a stepper motor and a baffle, wherein a stepper motor is mounted on one of the support plates, and a baffle for blocking the workpiece on the conveyor is connected to the output shaft of the stepper motor.

[0013] In one of the embodiments, it also includes a toggle mechanism, which includes a rotating ring, a soft brush, a gear and a rack. The outer part of the blocking ring is rotatably connected to the rotating ring, and the bottom of the rotating ring is connected to soft brushes at uniform intervals around the circumference. The rotating ring is connected to a gear, and the electric guide rail 2 is connected to a rack, and the rack and the gear are meshing.

[0014] In one embodiment, the right sides of the two positioning plates are inclined away from each other.

[0015] In one embodiment, the lower portions of the two push plates are inclined away from each other.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention can weld the workpiece through the laser welding head, and the pollutants generated in the welding process can be blocked by the blocking ring to prevent the pollutants from splashing and adhering to the surface of the equipment, thereby reducing maintenance costs and extending the service life of the equipment. The pollutants in the air can be filtered through the filter element to prevent the pollutants from polluting the workshop environment, thereby avoiding threats to the health of the workers.

[0017] 2. The push plate can push the sliding frame to move the two positioning plates towards each other. The positioning plate can push the two workpieces to make them contact each other and position the two workpieces to ensure that the position of each welding operation is highly consistent, reduce welding errors and improve welding quality.

[0018] 3. The baffle can block the workpiece to prevent the workpiece from moving too far and causing incomplete welding. The baffle can also ensure that the two workpieces are aligned front and back, ensuring that the position of each welding operation is highly consistent, reducing welding errors and improving welding quality.

[0019] 4. The contaminants on the top of the workpiece can be moved by a soft brush, so that the contaminants are detached from the top of the workpiece, allowing the air pump to better extract the contaminants and reduce the residual contaminants. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0021] Figure 2 A three-dimensional structural schematic diagram of the screw motor, slide plate, mounting plate and mounting block of the present invention is shown.

[0022] Figure 3 A three-dimensional structural schematic diagram of the mounting block, laser welding head and blocking ring of the present invention is shown.

[0023] Figure 4 The three-dimensional structural schematic diagram of the air intake mechanism and the filtering mechanism of the present invention is shown.

[0024] Figure 5 A cross-sectional view of a mounting block of the present invention is shown.

[0025] Figure 6 A first three-dimensional structural schematic diagram of the positioning mechanism of the present invention is shown.

[0026] Figure 7 A second three-dimensional structural schematic diagram of the positioning mechanism of the present invention is shown.

[0027] Figure 8 A cross-sectional view of the sliding frame and the moving plate of the present invention is shown.

[0028] Fig. 9 A three-dimensional structural schematic diagram of the blocking mechanism of the present invention is shown.

[0029] Fig.10 The three-dimensional structural schematic diagram of the toggle mechanism of the present invention is shown.

[0030] Fig.11 A three-dimensional structural schematic diagram of the rotating ring, soft brush and gear of the present invention is shown.

[0031] In the accompanying drawings: 1-frame, 2-conveyor, 3-support plate, 4-screw motor, 5-slide plate, 6-mounting plate, 7-electric guide rail one, 8-electric guide rail two, 9-mounting block, 10-laser welding head, 11-blocking ring, 121-inlet pipe, 122-connecting head, 131-exhaust pipe, 132-air pump, 133-filter element, 141-sliding frame, 142-spring, 143-moving plate, 144-slide rod, 145-positioning plate, 146-screw, 147-connecting frame, 148-push plate, 151-stepping motor, 152-baffle, 161-rotating ring, 162-soft brush, 163-gear, 164-rack. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Reference Figure 1-Figure 5 A laser welding device for mechanical processing includes a frame 1, a conveyor 2, a support plate 3, a screw motor 4, a slide plate 5, a mounting plate 6, an electric guide rail 1 7, an electric guide rail 2 8, a mounting block 9, a laser welding head 10, a blocking ring 11, an air intake mechanism and a filtering mechanism. The conveyor 2 is installed on the upper part of the frame 1 by bolts, and the support plates 3 are connected to the front and rear sides of the top of the frame 1 by bolts. The support plates 3 are installed with screw motors 4, and the slide plates 5 are slidably connected to the support plates 3. The screws of the screw motors 4 and the slide plates 5 are connected by threads. The mounting plates 6 are connected to the sides of the two slide plates 5 that are close to each other, and the electric guide rails 7 are installed on the left and right sides between the two mounting plates 6 by bolts. 3. The electric guide rail 1-7 is guided and supported, which can make the electric guide rail 1-7 more stable and avoid the electric guide rail 1-7 from tilting. The bottom of the sliders of the two electric guide rails 1-7 are jointly installed with an electric guide rail 2-8. The electric guide rail 2-8 is driven to move by the two electric guide rails 1-7, which can make the electric guide rail 2-8 more stable and avoid the electric guide rail 2-8 from tilting. The bottom of the slider of the electric guide rail 2-8 is connected with a mounting block 9 by bolts, and a laser welding head 10 is installed in the middle of the bottom of the mounting block 9 by bolts. A blocking ring 11 is connected in the middle of the bottom of the mounting block 9, and the laser welding head 10 is located in the blocking ring 11. The air intake mechanism is used to spray auxiliary gas to the welding area of ​​the workpiece, and the filtering mechanism is used to filter pollutants in the air.

[0035] Reference Figure 4 and Figure 5 The air intake mechanism includes an air intake pipe 121 and a connector 122. The rear of the mounting block 9 is connected to the air intake pipe 121. The air intake pipe 121 is located in the blocking ring 11. The right end of the air intake pipe 121 is connected to the connector 122.

[0036] Reference Figure 4 and Figure 5 The filtering mechanism includes an exhaust pipe 131, an air pump 132 and a filter element 133. The exhaust pipe 131 is connected to the front of the mounting block 9, and the air pump 132 is installed on the right front side of the top of the mounting block 9 by bolts. The filter element 133 is connected between the suction end of the air pump 132 and the right end of the exhaust pipe 131 by screws. When too much pollutant accumulates in the filter element 133, the filter element 133 can be removed and replaced.

[0037] The staff puts two workpieces on the conveyor 2 in parallel front and back, and makes the two workpieces contact each other. The conveyor 2 can convey the workpiece to the left and convey the workpiece to the bottom of the laser welding head 10. The control screw motor 4 drives the slide plate 5 to move downward, and the slide plate 5 drives the mounting plate 6 to move downward. The mounting plate 6 drives the blocking ring 11 and the laser welding head 10 to move downward, so that the bottom of the blocking ring 11 contacts the top of the workpiece, and the laser welding head 10 is close to the welding area of ​​the workpiece. The laser welding head 10 can weld the workpiece. The laser welding head 10 can be driven to move forward and backward by the electric guide rail 1 7, and can be driven to move left and right by the electric guide rail 2 8. The position of the laser welding head 10 is adjusted so that the laser welding head 10 can weld other positions of the workpiece. The air inlet pipe 121 can be connected to the auxiliary gas through the connector 122. The auxiliary gas is sprayed to the welding area of ​​the workpiece through the air inlet pipe 121 to prevent the welding area from being oxidized or contaminated. The auxiliary gas can also play a cooling role to help the welding area to solidify quickly, thereby improving the weld morphology. and mechanical properties, improve welding quality, the blocking ring 11 can block the pollutants generated during the welding process, prevent the pollutants from splashing and adhering to the surface of the equipment, reduce maintenance costs, and extend the service life of the equipment, the air pump 132 can suck the air and pollutants in the blocking ring 11 into the exhaust pipe 131, and the air and pollutants enter the filter element 133 through the exhaust pipe 131, and the filter element 133 can filter the pollutants in the air to prevent the pollutants from polluting the workshop environment, thereby avoiding threats to the health of the staff. After the workpiece welding is completed, the control screw motor 4 drives the slide plate 5 to move upward, and the slide plate 5 drives the blocking ring 11 and the laser welding head 10 to move upward and reset, and the conveyor 2 conveys the welded workpiece to the left, and conveys the unwelded workpiece to the bottom of the laser welding head 10, and conveying equipment can be set on the left and right sides of the conveyor 2, and the welded workpiece is conveyed to the next process by the conveying equipment, and the unwelded workpiece is conveyed to the conveyor 2 by the conveying equipment, so as to form an assembly line and improve work efficiency.

[0038] Reference Figure 6-Figure 8, also includes a positioning mechanism, the positioning mechanism includes a sliding frame 141, a spring 142, a moving plate 143, a slide bar 144, a positioning plate 145, a screw 146 and a pushing assembly, the front and rear sides of the top of the frame 1 are slidably connected with the sliding frame 141, the left and right parts of the sliding frame 141 are sleeved with springs 142, the two ends of the spring 142 are respectively connected to the frame 1 and the sliding frame 141, the spring 142 is sleeved on the sliding frame 141, and the spring 142 can prevent the spring 142 from bending, the lower part of the sliding frame 141 is connected with a moving plate 143, and the lower left and right sides of the sliding frame 141 are slidably connected with The slide bar 144 and the two slide bars 144 on the same slide frame 141 are connected with a positioning plate 145. The positioning plate 145 is guided by the two slide bars 144 to improve the stability of the positioning plate 145 and avoid the positioning plate 145 from tilting. The two positioning plates 145 are tilted away from each other on the right side. The middle part of the movable plate 143 is connected with a screw rod 146 through a thread. The screw rod 146 and the positioning plate 145 are rotatably connected. The pushing component is used to push the slide frame 141 to move the positioning plate 145 so that the positioning plate 145 can position the workpiece on the conveyor 2.

[0039] Reference Figure 6 The pushing assembly includes a connecting frame 147 and a push plate 148. The top of the slide plate 5 is connected to the connecting frame 147 by bolts, and the top of the connecting frame 147 is connected to the push plate 148 by bolts. The lower parts of the two push plates 148 are inclined in a direction away from each other. When the push plate 148 moves downward, the inclined part of the push plate 148 will contact the sliding frame 141.

[0040] The staff can rotate the screw 146 to drive the positioning plate 145 to move and adjust the distance between the two positioning plates 145. The distance between the two positioning plates 145 can be adjusted according to the width of the workpieces to adapt to workpieces of different widths, and then the unwelded workpieces are transported to the conveyor 2 through the conveying equipment. The right sides of the two positioning plates 145 are inclined in the direction away from each other. The inclined part of the positioning plate 145 can guide the workpiece to ensure that the workpiece can move between the two positioning plates 145. When the slide plate 5 moves downward, the connecting frame 147 and the push plate 148 can be driven to move downward. The inclined part of the push plate 148 will contact the sliding frame 141 and push the sliding frame 141 so that the two sliding frames 141 move in the direction of approaching each other. The spring 142 is compressed, and the sliding frame 141 drives the two positioning plates 145 to move in the direction of approaching each other. The positioning plate 145 can push the two workpieces so that the two workpieces contact each other and position the two workpieces to ensure that the position of each welding operation is highly consistent, reduce welding errors, and improve welding quality.

[0041] Reference Fig. 9, and also includes a blocking mechanism, which includes a stepping motor 151 and a baffle 152. The stepping motor 151 is installed on the lower left part of the front support plate 3 by bolts, and the baffle 152 is connected to the output shaft of the stepping motor 151.

[0042] When the conveyor 2 conveys the workpiece to the left, the workpiece will contact the baffle 152. The baffle 152 can block the workpiece to prevent the workpiece from moving too far and causing incomplete welding. At the same time, the baffle 152 can ensure that the two workpieces are aligned front to back, ensuring that the position height of each welding operation is consistent, reducing welding errors, and improving welding quality. When the workpiece welding is completed, the output shaft of the stepper motor 151 is controlled to rotate, driving the baffle 152 to rotate, and the baffle 152 is turned away, so that the welded workpiece can be conveyed to the left.

[0043] Reference Fig.10 and Fig.11 , also includes a toggle mechanism, the toggle mechanism includes a rotating ring 161, a soft brush 162, a gear 163 and a rack 164, the blocking ring 11 is externally rotatably connected to the rotating ring 161, the bottom of the rotating ring 161 is circumferentially evenly connected with soft brushes 162, the soft brush 162 is made of a soft material and will not cause wear to the workpiece, the upper part of the rotating ring 161 is connected to the gear 163, the front side of the electric guide rail 28 is connected to the rack 164, and the rack 164 and the gear 163 are meshed.

[0044] When the laser welding head 10 moves downward and approaches the workpiece, the soft brush 162 will contact the top of the workpiece. When the mounting block 9 moves left and right, it can drive the gear 163 to move left and right. The gear 163 rolls on the rack 164, and the gear 163 drives the rotating ring 161 to rotate. The rotating ring 161 drives the soft brush 162 to rotate. The soft brush 162 can move the contaminants on the top of the workpiece to separate the contaminants from the top of the workpiece, so that the air pump 132 can better extract the contaminants and reduce the residual contaminants.

[0045] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. They only express the preferred implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention.

[0046] It should be pointed out that, for ordinary technicians in this field, several modifications, increases and decreases in quantity, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

Claims

1. A laser welding device for mechanical processing, comprising a frame (1) and a conveyor (2), wherein the conveyor (2) is mounted on the frame (1), characterized in that: The machine frame (1) further comprises a support plate (3), a screw motor (4), a slide plate (5), a mounting plate (6), an electric guide rail 1 (7), an electric guide rail 2 (8), a mounting block (9), a laser welding head (10), a blocking ring (11), an air intake mechanism and a filtering mechanism. The front and rear sides of the top of the frame (1) are connected to the support plate (3), the screw motor (4) is mounted on the support plate (3), the slide plate (5) is slidably connected to the support plate (3), the screw of the screw motor (4) and the slide plate (5) are connected by threads, the slide plate (5) is connected to the mounting plate (6), and the two mounting plates (6) are connected to the mounting plate (6). An electric guide rail 1 (7) is installed between the two guide rails; an electric guide rail 2 (8) is installed on the slider of the electric guide rail 1 (7); a mounting block (9) is connected to the slider of the electric guide rail 2 (8); a laser welding head (10) and a blocking ring (11) are installed at the bottom of the mounting block (9); the laser welding head (10) is located inside the blocking ring (11); the conveyor (2) is used to transport the workpiece to the bottom of the laser welding head (10); the laser welding head (10) welds the workpiece; the air intake mechanism is used to spray auxiliary gas to the welding area of ​​the workpiece; and the filtering mechanism is used to filter pollutants in the air.

2. The laser welding equipment for mechanical processing according to claim 1, characterized in that: The air intake mechanism comprises an air intake pipe (121) and a connector (122); the mounting block (9) is connected to the air intake pipe (121); the air intake pipe (121) is located inside the blocking ring (11); and the air intake pipe (121) is connected to the connector (122).

3. A laser welding device for mechanical processing as claimed in claim 2, characterized in that: The filtering mechanism comprises an exhaust pipe (131), an air pump (132) and a filter element (133); the exhaust pipe (131) is connected to the mounting block (9); the air pump (132) is mounted on the top of the mounting block (9); and the filter element (133) for filtering pollutants in the air is connected between the air suction end of the air pump (132) and the exhaust pipe (131).

4. A laser welding device for mechanical processing as claimed in claim 3, characterized in that: The invention also comprises a positioning mechanism, which comprises a sliding frame (141), a spring (142), a movable plate (143), a sliding rod (144), a positioning plate (145), a screw (146) and a pushing assembly. The front and rear sides of the top of the frame (1) are both slidably connected to the sliding frame (141), a spring (142) is connected between the frame (1) and the sliding frame (141), the sliding frame (141) is connected to the movable plate (143), the left and right sides of the lower part of the sliding frame (141) are both slidably connected to the sliding rod (144), the two sliding rods (144) on the same sliding frame (141) are commonly connected to the positioning plate (145), the movable plate (143) is both threadedly connected to the screw (146), the screw (146) and the positioning plate (145) are rotatably connected, and the pushing assembly is used to push the sliding frame (141) to move the positioning plate (145), so that the positioning plate (145) can position the workpiece on the conveyor (2).

5. The laser welding equipment for mechanical processing as claimed in claim 4, characterized in that: The pushing assembly includes a connecting frame (147) and a push plate (148). The top of the slide plate (5) is connected to the connecting frame (147), and the top of the connecting frame (147) is connected to the push plate (148). The push plate (148) contacts the sliding frame (141) during the downward movement and pushes the sliding frame (141) to move the positioning plate (145), so that the positioning plate (145) can position the workpiece on the conveyor (2).

6. The laser welding equipment for mechanical processing as claimed in claim 5, characterized in that: The device also includes a blocking mechanism, which includes a stepping motor (151) and a baffle (152), wherein the stepping motor (151) is mounted on one of the support plates (3), and the baffle (152) for blocking the workpiece on the conveyor (2) is connected to the output shaft of the stepping motor (151).

7. The laser welding equipment for mechanical processing as claimed in claim 6, characterized in that: The invention also comprises a toggle mechanism, which comprises a rotating ring (161), a soft brush (162), a gear (163) and a rack (164); the blocking ring (11) is externally rotatably connected to the rotating ring (161); the bottom of the rotating ring (161) is connected to the soft brush (162) at even intervals in the circumferential direction; the rotating ring (161) is connected to the gear (163); the electric guide rail 2 (8) is connected to the rack (164); and the rack (164) and the gear (163) are meshed.

8. The laser welding equipment for mechanical processing as claimed in claim 4, characterized in that: The right sides of the two positioning plates (145) are inclined in a direction away from each other.

9. The laser welding equipment for mechanical processing as claimed in claim 5, characterized in that: The lower parts of the two push plates (148) are inclined in directions away from each other.

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