Automatic welding device for hub

Abstract

The utility model relates to an automatic hub welding device which comprises a laser welding machine, a multi-axis mechanical arm and a conveying mechanism arranged on one side of the multi-axis mechanical arm, and the movable end of the multi-axis mechanical arm is provided with an electromagnetic chuck used for adsorbing a spoke and a clamping tool used for taking and placing a rim through connecting pieces. A laser welding head of the laser welding machine is installed in the middle of the connecting piece, and a positioner used for positioning and supporting the rim is further arranged below the movable end of the multi-axis mechanical arm. The conveying mechanism comprises two rim conveying modules and a spoke conveying module which are arranged in parallel, each conveying module comprises a supporting frame and a linear module installed on the supporting frame, the moving end of each linear module is connected with a tray, and positioning pins used for positioning spokes or rims are arranged on the trays. According to the non-contact laser welding device for the hub, non-contact laser welding is carried out on the hub, the welding speed is high, a welding seam is attractive, high-stability laser cannot cause deformation to a product, manual secondary treatment is not needed after welding, and the production cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to an automatic welding device for a wheel hub. Background Art

[0002] Automobile rims are usually made of aluminum alloy or steel. Steel wheels have high strength and are often used in large trucks, so they have high requirements in all aspects.

[0003] The traditional steel rim wheel welding method uses manual methods to grind off the welding scars at the welding point after welding. This method is not only inefficient, but also time-consuming and laborious. Due to the influence of manual skills, the polished steel rim welding scars are uneven, which can hardly meet the needs of high-quality steel rim welding and grinding. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an automatic welding device for a wheel hub, which can automatically and efficiently weld the wheel hub and can ensure the strength and aesthetics after welding.

[0005] The utility model is realized through the following technical solutions:

[0006] Provided is an automated welding device for a wheel hub, comprising a laser welding machine, a multi-axis robot arm and a conveying mechanism arranged on one side of the multi-axis robot arm, wherein an electromagnetic suction cup for adsorbing a spoke and a clamping tool for picking up and placing a rim are respectively installed at the movable end of the multi-axis robot arm through a connecting piece, a laser welding head of the laser welding machine is installed in the middle of the connecting piece, and a positioner for positioning and supporting the rim is also arranged below the movable end of the multi-axis robot arm; the conveying mechanism comprises two rim conveying modules and a spoke conveying module arranged in parallel, each conveying module comprises a support frame and a linear module installed on the support frame, a movable end of the linear module is connected to a pallet, and a positioning pin for positioning the spoke or the rim is arranged on the pallet.

[0007] Furthermore, the clamping tooling includes a mounting plate fixed on the connecting piece, two arc-shaped holding plates are hinged on the mounting plate, a cylinder is installed on the mounting plate between the two arc-shaped holding plates, the piston rod of the cylinder is vertically connected to the cylinder connecting plate, and the two ends of the cylinder connecting plate are respectively hinged to the arc-shaped holding plates on the corresponding sides through movable plates.

[0008] The cylinder connecting plate is driven to move by the extension and retraction of the piston rod of the cylinder, thereby driving the arc-shaped holding plate to clamp or loosen the wheel hub or rim, thereby achieving clamping and loosening.

[0009] Furthermore, the positioner includes a positioner base, on which is mounted a flipping body that can be flipped by a motor, on which is mounted a rotating body that can be rotated by a motor, and on which is mounted a clamping claw that can be driven by compressed air to release the clamp.

[0010] The motor drives the flip body to rotate, driving the rotating body to rotate. At the same time, the rotating body can also be driven by its own motor to rotate, realizing various changes in position, and cooperating with the clamping claws on the rotating body to clamp the wheel hub for stable welding.

[0011] Furthermore, it also includes a protective partition that encloses the multi-axis robot arm, the conveying mechanism and the positioner. The protective partition on the side facing the conveying mechanism is provided with an inlet and outlet for the conveying mechanism to pass through.

[0012] The multi-axis robot arm, conveying mechanism and positioner are surrounded by protective partitions, and welding processing is carried out inside the protective partitions, which improves the safety of welding.

[0013] Furthermore, a control cabinet for controlling the movement of the multi-axis robotic arm, a laser welding machine connected to the laser welding head, and an electric control cabinet for controlling the overall operation are respectively provided outside the protective partition.

[0014] The electric control cabinet has the functions of power supply and control, and can coordinate the overall operation of the control device, including the control of the laser welding machine, multi-axis robot arm, conveying mechanism and positioner. The control cabinet is used to control the movement of the multi-axis robot arm, and is electrically connected to the electric control cabinet, and the operation is controlled by the electric control cabinet.

[0015] Beneficial effects of the utility model:

[0016] The utility model can realize automatic loading and unloading of materials by utilizing the conveying mechanism, and can realize isolation of the human-machine interaction area by cooperating with the processing compartment formed by the protective partition. Automatic handling and welding can be carried out in the protective compartment, and personnel only need to operate outside the protective room, thereby improving the safety of operation.

[0017] The utility model utilizes laser to implement non-contact welding processing on the wheel hub, with high welding speed, beautiful weld, high-stability laser output, no deformation of the product, no need for manual secondary processing after welding, and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the structure of each part of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the multi-axis mechanical arm in the utility model.

[0021] Figure 4 for Figure 3 Enlarged stereogram of .

[0022] Figure 5It is a structural schematic diagram of the positioner in the utility model.

[0023] Figure 6 It is a structural schematic diagram of the spoke conveying module in the utility model.

[0024] As shown in the figure:

[0025] 1. Multi-axis robotic arm, 101. movable end, 102. connecting part, 103. electromagnetic chuck, 104. laser welding head, 105. clamping tool, 105-1. mounting plate, 105-2. arc holding plate, 105-3. movable plate, 105-4. cylinder connecting plate, 105-5. cylinder, 2. positioner, 201. positioner base, 202. turning body, 203. rotating body, 204. clamping claw, 3. spoke conveying module, 4. rim conveying module, 301. linear module, 302. pallet, 303. positioning pin, 304. linear module motor, 305. support frame, 5. electric control cabinet, 6. multi-axis robotic arm control cabinet, 7. laser welding machine, 8. protective partition, 9. inlet and outlet. DETAILED DESCRIPTION

[0026] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0027] An automated welding device for a wheel hub comprises a laser welding machine 7, a multi-axis robot arm 1 and a conveying mechanism arranged on one side of the multi-axis robot arm 1. An electromagnetic suction cup 103 for adsorbing a spoke and a clamping tool 105 for picking up and placing a rim are respectively installed on a movable end 101 of the multi-axis robot arm 1 through a connecting piece 102. The clamping tool 105 comprises a mounting plate 105-1 fixed to the connecting piece 102. Two arc-shaped holding plates 105-2 are hinged on the mounting plate 105-1. A cylinder 105-5 is installed between the two arc-shaped holding plates 105-2 on the mounting plate 105-1. The piston rod of the cylinder 105-5 is vertically connected to a cylinder connecting plate 105-4. Both ends of the cylinder connecting plate 105-4 are respectively hinged to the arc-shaped holding plates 105-2 on the corresponding sides through a movable plate 105-3.

[0028] The laser welding head 104 of the laser welding machine 7 is installed in the middle of the connecting part 102, and a positioner 2 for positioning and supporting the rim is also arranged below the movable end 101 of the multi-axis robot arm 1; the positioner 2 includes a positioner base 201, on which a flipping body 202 that can be turned over by a motor is installed, and on the flipping body 202, a rotating body 203 that can be rotated by a motor is installed, and on the rotating body 203, a clamping claw 204 that can be driven by compressed air to release the clamp is installed.

[0029] The conveying mechanism includes two rim conveying modules 4 and a spoke conveying module 3 arranged in parallel. Each conveying module includes a support frame 305 and a linear module 301 installed on the support frame 305. The movable end of the linear module 301 is connected to a tray 302, and the tray 302 is provided with a positioning pin 303 for positioning the spoke or rim.

[0030] It also includes a protective partition 8 that encloses the multi-axis robot arm 1, the conveying mechanism and the positioner 2. On the side of the protective partition 8 facing the conveying mechanism, a material inlet and outlet 9 for the conveying mechanism to pass through is provided. Outside the protective partition 8, there are also a multi-axis robot arm control cabinet 6 for controlling the movement of the multi-axis robot arm 1, a laser welding machine 7 connected to the laser welding head 104, and an electric control cabinet 5 for controlling the overall operation.

[0031] The use process of this utility model:

[0032] Turn on the power of the equipment in the electric control cabinet 5, turn on the power of the laser welding machine 7 and the multi-axis robot control cabinet 6. Select the workpiece model on the touch screen of the electric control cabinet 5, and select the welding process parameters corresponding to the workpiece on the display screen of the laser welding machine 7.

[0033] The spoke is placed on the tray 302 and positioned by the positioning pin 303, and the rim is placed on the tray 301 and positioned by the positioning pin 303. The loading button is activated on the electric control cabinet 5, and the spoke and rim are respectively transported to the protective partition 8 through the inlet and outlet 9, and automatically stop after being transported to the fixed position, and then welding begins.

[0034] The multi-axis robot arm 1 uses the clamping tool 105 to clamp the rim, place the rim on the clamping claw 204, and clamp it in place. At the same time, the rim conveying module 4 for conveying the rim conveys the tray 302 to the outside of the protective partition 8.

[0035] The multi-axis robot 1 grabs the spokes with the electromagnetic chuck 103 and places the spokes at a suitable position in the rim. At the same time, the spoke conveying module 3 conveys the spoke tray to the outside of the protective partition 8. The laser welding head 104 on the multi-axis robot 1 spot welds the rim and the spokes. The turning body 202 of the positioner 2 turns at a certain angle to facilitate welding. The rotating body 203 starts to rotate at a constant speed. At the same time, the laser welding head 104 starts welding and stops after welding one circle.

[0036] The multi-axis robot 1 uses a clamping tool 105 to clamp the welded hub and places the welded hub on another rim conveying module 4. The rim conveying module 4 conveys the welded hub to the outside of the protective partition 8, and the welding of a single hub is completed.

[0037] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. An automated welding device for a wheel hub, comprising a laser welding machine, a multi-axis robotic arm, and a conveying mechanism arranged on one side of the multi-axis robotic arm, characterized in that: The movable end of the multi-axis robot arm is respectively equipped with an electromagnetic suction cup for adsorbing the spoke and a clamping tool for picking up and placing the rim through a connecting piece. The laser welding head of the laser welding machine is installed in the middle of the connecting piece. A positioner for positioning and supporting the rim is also arranged below the movable end of the multi-axis robot arm; the conveying mechanism includes two rim conveying modules and a spoke conveying module arranged in parallel, each conveying module includes a support frame and a linear module installed on the support frame, the movable end of the linear module is connected to a pallet, and the pallet is provided with positioning pins for positioning the spokes or rims.

2. The automatic welding device for wheel hub according to claim 1, characterized in that: The clamping tooling includes a mounting plate fixed on a connecting piece, two arc-shaped holding plates are hinged on the mounting plate, a cylinder is installed on the mounting plate between the two arc-shaped holding plates, a piston rod of the cylinder is vertically connected to a cylinder connecting plate, and both ends of the cylinder connecting plate are respectively hinged to the arc-shaped holding plates on the corresponding sides through movable plates.

3. The automatic welding device for wheel hub according to claim 1, characterized in that: The positioner comprises a positioner base, on which a turning body driven by a motor for turning is installed, on which a rotating body driven by a motor for rotating is installed, and on which a clamping claw driven by compressed air for loosening is installed.

4. The automatic welding device for a wheel hub according to claim 1, characterized in that: It also includes a protective partition that encloses the multi-axis robot arm, the conveying mechanism and the positioner. The protective partition on the side facing the conveying mechanism is provided with an inlet and outlet for the conveying mechanism to pass through.

5. The automatic welding device for wheel hub according to claim 4, characterized in that: Outside the protective partition, there are also a control cabinet for controlling the movement of the multi-axis robotic arm, a laser welding machine connected to the laser welding head, and an electric control cabinet for controlling the overall operation.

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