Aluminum alloy laser welding device

Abstract

The utility model discloses an aluminum alloy laser welding device, which belongs to the field of laser welding and comprises a processing table, a folded plate is mounted at the top of the processing table, a laser welding head is movably mounted on the folded plate, and two symmetrically arranged connecting boxes are slidably connected to the top of the processing table. Hydraulic rods are installed on the opposite sides of the two connecting boxes, the ends, away from the connecting boxes, of the hydraulic rods are fixedly installed on the top of the machining table, a set of telescopic pieces are arranged on the connecting boxes, an air pump is installed on the top of the machining table, and the output end and the input end of the air pump are fixedly connected with guide pipes; and a folding pipe communicated with the bottom guide pipe is mounted at one end of the bottom guide pipe. According to the special-shaped workpiece clamping device, a special-shaped workpiece can be effectively clamped and fixed, practicability is higher, meanwhile, the upper portion of the workpiece is pressed and limited, stability in the welding process is guaranteed, and harmful substances generated in the welding process are treated in time in cooperation with gas adsorption and purification.

Description

Technical Field

[0001] The utility model relates to the field of laser welding, and more specifically to an aluminum alloy laser welding device. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is a heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully used in the precision welding of micro and small parts.

[0003] Aluminum alloy welding refers to the welding process of aluminum alloy materials. Aluminum alloy has high strength and light weight. The main welding processes are manual TIG welding (non-melting inert gas shielded welding), automatic TIG welding and MIG welding (melting inert gas shielded welding). Its base material, welding wire, shielding gas and welding equipment. With the continuous advancement of welding technology and automation technology, aluminum alloy welding has entered the era of automatic laser welding.

[0004] In the prior art, aluminum alloy laser welding equipment is often used to fix the workpiece by means of a vise, a push rod and a clamp. However, there are the following defects in actual use: it does not have the function of fastening and clamping special-shaped workpieces, and it is not convenient to purify the harmful gases generated during the welding process in a timely manner. For this reason, we have launched an aluminum alloy laser welding device to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an aluminum alloy laser welding device.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A laser welding device for aluminum alloy comprises a processing table, a folding plate is installed on the top of the processing table, a laser welding head is movably installed on the folding plate, the top of the processing table is slidably connected to two symmetrically arranged connection boxes, hydraulic rods are installed on the opposite sides of the two connection boxes, one end of the hydraulic rod away from the connection box is fixedly installed to the top of the processing table, a group of telescopic parts are arranged on the connection box, an air pump is installed on the top of the processing table, the output end and the input end of the air pump are fixedly connected to a conduit, one end of the conduit at the bottom is installed with a folded tube connected thereto, the two ends of the folded tube are respectively inserted into and fixedly connected to the interior of the two connection boxes, and two limit members are arranged on the top of the connection box.

[0008] As a further description of the above technical solution:

[0009] The telescopic part includes a fixed tube, a sliding rod and a piston plate, one end of the fixed tube is fixedly connected to the inner wall of the connecting box, one end of the sliding rod passes through the connecting box and extends to the interior of the fixed tube, one end of the sliding rod is fixedly connected to the outside of the piston plate, the other end of the sliding rod is on the outside of the connecting box, and the outside of the piston plate is slidably connected to the inside of the fixed tube.

[0010] As a further description of the above technical solution:

[0011] Two springs are installed between the piston plate and the inner wall of the connection box.

[0012] As a further description of the above technical solution:

[0013] An anti-skid pad is arranged at one end of the sliding rod outside the connection box, and a group of elastic balls are fixedly installed between the anti-skid pad and the sliding rod.

[0014] As a further description of the above technical solution:

[0015] The limiting member includes a horizontal plate, an electric push rod and a ball. A support column rotatably connected to the top of the connecting box is fixedly installed at the bottom of the horizontal plate. One end of the electric push rod passes through and is fixedly installed to the inside of the horizontal plate. The ball is embedded in the bottom end of the electric push rod.

[0016] As a further description of the above technical solution:

[0017] One end of the conduit at the top is fixedly connected to a purification box connected thereto, an activated carbon plate and a filter plate are respectively arranged inside the purification box, a three-way pipe connected thereto is installed on the purification box, an air suction box is fixedly installed on the top of the connection box, two ends of the three-way pipe away from the purification box are respectively connected to two air suction boxes, and air inlet grooves are provided on opposite sides of the two air suction boxes.

[0018] As a further description of the above technical solution:

[0019] An exhaust pipe is installed on the conduit at the bottom, and electromagnetic valves are installed on the outer sides of the conduit at the bottom and the exhaust pipe. The materials of the three-way pipe and the folded pipe are both plastic hoses.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) This solution uses an air pump to operate and introduce gas into the connecting box. When clamping a neat workpiece, the gas can push the piston plate to move, causing multiple sliding rods to move synchronously, making close contact with the clamping surface of the neat workpiece to achieve a clamping and fixing effect. When clamping a special-shaped workpiece, the gas is introduced into the connecting box, and the movement of the multiple sliding rods will automatically change according to the situation of the clamping surface of the workpiece, so that the multiple sliding rods with different movement amplitudes are fitted to the clamping surface of the special-shaped workpiece until the anti-slip pad on the sliding rod is in close contact with the clamping surface of the workpiece, thereby achieving a clamping and fixing effect.

[0022] (2) This solution uses an air pump to absorb harmful gases generated in the welding area, and then uses the filter plate and activated carbon plate in the purification box to treat particulate matter and harmful substances in the gas. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a top view and cross-sectional diagram of the back connection box and telescopic member structure of the utility model;

[0025] Figure 3 The structure of the utility model Figure 1 A is an enlarged schematic diagram;

[0026] Figure 4 The structure of the utility model Figure 1 A magnified schematic diagram of B.

[0027] Description of the numbers in the figure:

[0028] 1. Processing table; 2. Solenoid valve; 3. Connection box; 4. Hydraulic rod; 5. Telescopic part; 51. Fixed pipe; 52. Sliding rod; 53. Piston plate; 6. Air pump; 7. Conduit; 8. Folding pipe; 9. Limiting part; 91. Horizontal plate; 92. Electric push rod; 93. Ball; 10. Spring; 11. Anti-slip mat; 12. Elastic ball; 13. Purification box; 14. Three-way pipe; 15. Suction box; 16. Inlet groove; 17. Exhaust pipe. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0030] See also Figure 1-4In the utility model, an aluminum alloy laser welding device comprises a processing table 1, a folding plate is installed on the top of the processing table 1, a laser welding head is movably installed on the folding plate, two symmetrically arranged connecting boxes 3 are slidably connected to the top of the processing table 1, hydraulic rods 4 are installed on the opposite sides of the two connecting boxes 3, and one end of the hydraulic rod 4 away from the connecting box 3 is fixedly installed to the top of the processing table 1, and a group of telescopic parts 5 are arranged on the connecting box 3, an air pump 6 is installed on the top of the processing table 1, and the output end and input end of the air pump 6 are fixedly connected with a conduit 7, and one end of the bottom conduit 7 is installed with a folded tube 8 connected thereto, and the two ends of the folded tube 8 are respectively inserted into and fixedly connected to the inside of the two connecting boxes 3, and two limit members 9 are arranged on the top of the connecting box 3.

[0031] In the utility model, when it is necessary to perform welding processing on the workpieces, the user can place the workpieces to be welded on the processing table 1 in sequence, and then place the welding surfaces of the two workpieces opposite to each other and under the folding plate, so that the two workpieces are placed between the two connecting boxes 3, and then the limiter 9 can be used to suppress and limit the top of the workpiece. When welding neat workpieces, the user can start the corresponding hydraulic rod 4 to drive the two connecting boxes 3 to move relative to each other, so that the telescopic member 5 contacts the clamping surface of the workpiece to achieve a clamping and fixing effect. When it is necessary to clamp the special-shaped workpiece, the air pump 6 can be used to operate, and the external gas can be introduced into the folding tube 8 along the conduit 7, and then enter the interior of the connecting box 3, driving multiple telescopic members 5 to fit and clamp the outer sides of the special-shaped workpieces one by one, which is more applicable.

[0032] See also Figure 1-4 , wherein: the telescopic member 5 includes a fixed tube 51, a sliding rod 52 and a piston plate 53, one end of the fixed tube 51 is fixedly connected to the inner wall of the connecting box 3, one end of the sliding rod 52 passes through the connecting box 3 and extends to the inside of the fixed tube 51, one end of the sliding rod 52 is fixedly connected to the outside of the piston plate 53, the other end of the sliding rod 52 is on the outside of the connecting box 3, and the outside of the piston plate 53 is slidably connected to the inside of the fixed tube 51.

[0033] Among them, an anti-skid pad 11 is arranged at one end of the sliding rod 52 outside the connection box 3 , and a group of elastic balls 12 are fixedly installed between the anti-skid pad 11 and the sliding rod 52 .

[0034] In the utility model, when a special-shaped workpiece is to be welded, its clamping surface may not be a plane. At this time, after the gas is introduced into the connecting box 3, it will enter the corresponding fixed tube 51 in sequence, and then multiple piston plates 53 will be driven. At this time, the sliding rod 52 is driven, and then according to the concave and convex conditions of the workpiece clamping surface, the multiple sliding rods 52 will move to different lengths until the anti-slip pad 11 on the sliding rod 52 is in close contact with the workpiece clamping surface to achieve a clamping and fixing effect. Due to the setting of the elastic ball 12, when the anti-slip pad 11 is in contact with the workpiece clamping surface, it can be slightly adaptively fitted according to the shape of its clamping surface to ensure a close fit and achieve a better clamping and fixing effect.

[0035] See also Figure 1-4 , wherein: the limiting member 9 includes a horizontal plate 91, an electric push rod 92 and a ball 93, a support column rotatably connected to the top of the connecting box 3 is fixedly installed at the bottom of the horizontal plate 91, one end of the electric push rod 92 passes through and is fixedly installed to the inside of the horizontal plate 91, and the ball 93 is embedded in the bottom end of the electric push rod 92.

[0036] In the utility model, the electric push rod 92 on the horizontal plate 91 is operated to drive the ball 93 to contact the top of the workpiece, and corresponding adjustments are made according to the workpieces of different thicknesses, while ensuring the clamping limit without affecting the translational movement of the workpiece.

[0037] See also Figure 1-3 , wherein: one end of the top conduit 7 is fixedly connected with a purification box 13 connected thereto, an activated carbon plate and a filter plate are respectively arranged inside the purification box 13, a three-way pipe 14 connected thereto is installed on the purification box 13, an air suction box 15 is fixedly installed on the top of the connection box 3, and the two ends of the three-way pipe 14 away from the purification box 13 are respectively connected with two air suction boxes 15, and air inlet grooves 16 are opened on opposite sides of the two air suction boxes 15.

[0038] In the utility model, during the operation of the air pump 6, the harmful gas in the welding area will be sucked into the air suction box 15 along the air inlet groove 16, and then introduced into the purification box 13 along the three-way pipe 14, and then the particulate matter in the gas will be intercepted by the filter plate, and the harmful substances in the gas will be adsorbed and purified by the activated carbon plate.

[0039] See also Figure 1-3 , wherein: an exhaust pipe 17 is installed on the bottom conduit 7, and an electromagnetic valve 2 is installed on the outside of the bottom conduit 7 and the exhaust pipe 17. The material of the three-way pipe 14 and the folded pipe 8 are both plastic hoses. The material setting of the plastic hose can ensure that the connection box 3 can move normally during the clamping process without getting stuck.

[0040] In the utility model, when performing the clamping operation, the user can close the solenoid valve 2 on the exhaust pipe 17. After each gas is introduced into the connection box 3, when the position of the sliding rod 52 is adjusted to the right position, the user can close the solenoid valve 2 on the three-way pipe 14 to ensure the clamping stability, and then open the solenoid valve 2 on the exhaust pipe 17 to facilitate the discharge of the purified harmful gas.

[0041] Wherein: two springs 10 are installed between the piston plate 53 and the inner wall of the connection box 3.

[0042] After each clamping operation, the user can open the two solenoid valves 2 and then stop the air pump 6. At this time, the spring 10 will drive the piston plate 53 to reset, thereby squeezing out the excess gas in the connection box 3 and discharging it outward along the exhaust pipe 17.

[0043] It should be noted that the various devices in this application are common devices in the market, and can be selected according to specific needs during specific use. The circuit connection relationship of each device belongs to a simple series and parallel connection circuit. There is no innovation in the circuit connection. Those skilled in the art can easily implement it. It belongs to the existing technology and will not be elaborated.

[0044] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An aluminum alloy laser welding device, comprising a processing table (1), characterized in that: A folding plate is installed on the top of the processing table (1), and a laser welding head is movably installed on the folding plate. Two symmetrically arranged connection boxes (3) are slidably connected to the top of the processing table (1). The two connection boxes (3) are each installed with a hydraulic rod (4) on the opposite sides. The end of the hydraulic rod (4) away from the connection box (3) is fixedly installed to the top of the processing table (1). A group of telescopic parts (5) are arranged on the connection box (3). An air pump (6) is installed on the top of the processing table (1). The output end and the input end of the air pump (6) are both fixedly connected to a conduit (7). One end of the conduit (7) at the bottom is installed with a folded tube (8) connected thereto. The two ends of the folded tube (8) are respectively inserted into and fixedly connected to the inside of the two connection boxes (3). Two limit members (9) are arranged on the top of the connection box (3).

2. The aluminum alloy laser welding device according to claim 1, characterized in that: The telescopic member (5) comprises a fixed tube (51), a sliding rod (52) and a piston plate (53); one end of the fixed tube (51) is fixedly connected to the inner wall of the connecting box (3); one end of the sliding rod (52) passes through the connecting box (3) and extends to the inside of the fixed tube (51); one end of the sliding rod (52) is fixedly connected to the outside of the piston plate (53); the other end of the sliding rod (52) is located on the outside of the connecting box (3); and the outside of the piston plate (53) is slidably connected to the inside of the fixed tube (51).

3. The aluminum alloy laser welding device according to claim 2, characterized in that: Two springs (10) are installed between the piston plate (53) and the inner wall of the connection box (3).

4. The aluminum alloy laser welding device according to claim 2, characterized in that: An anti-skid pad (11) is provided at one end of the sliding rod (52) located outside the connection box (3), and a group of elastic balls (12) are fixedly installed between the anti-skid pad (11) and the sliding rod (52).

5. The aluminum alloy laser welding device according to claim 1, characterized in that: The limiting member (9) comprises a transverse plate (91), an electric push rod (92) and a ball bearing (93); a support column rotatably connected to the top of the connection box (3) is fixedly mounted at the bottom of the transverse plate (91); one end of the electric push rod (92) passes through and is fixedly mounted inside the transverse plate (91); and the ball bearing (93) is embedded in the bottom end of the electric push rod (92).

6. The aluminum alloy laser welding device according to claim 1, characterized in that: One end of the conduit (7) at the top is fixedly connected to a purification box (13) in communication with the conduit, an activated carbon plate and a filter plate are respectively arranged inside the purification box (13), a three-way pipe (14) in communication with the purification box (13) is installed on the purification box (13), an air suction box (15) is fixedly installed on the top of the connection box (3), the two ends of the three-way pipe (14) away from the purification box (13) are respectively in communication with two air suction boxes (15), and air inlet grooves (16) are provided on opposite sides of the two air suction boxes (15).

7. The aluminum alloy laser welding device according to claim 6, characterized in that: An exhaust pipe (17) is installed on the bottom conduit (7), and electromagnetic valves (2) are installed on the outer sides of the bottom conduit (7) and the exhaust pipe (17). The three-way pipe (14) and the folded pipe (8) are both made of plastic hoses.

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