Double-end welding machine

Abstract

The utility model relates to the technical field of hub assembly production equipment, in particular to a double-head welding machine which comprises two welding machines, each welding machine comprises a control box and a welding head, the two welding machines are arranged on a vertical frame, the vertical frame is connected with a linear module, the two welding machines are arranged on the vertical frame up and down, an upper connecting block and a lower connecting block are arranged on the vertical frame, and the linear module is connected with the linear module. The two connecting blocks are each fixedly connected with a horizontal rod, and the two welding heads are arranged at the ends, on the same side, of the two horizontal rods correspondingly. Two parallel vertical grooves are formed in the vertical frame, screw rods are arranged in the two vertical grooves, the screw rods are connected with a positive and negative rotation motor, all threads are matched with sliding blocks, and the two connecting blocks are fixed to the corresponding sliding blocks respectively. The rim welding device can conduct internal and external welding on the rim at the same time, improves welding efficiency, avoids transferring of the rim, saves time, and is beneficial to improving production quality and production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub assembly production equipment, and specifically relates to a double-head welding machine. Background Art

[0002] The rim is a component on the wheel that is used to mount and support the tire. The rim and the spokes form a hub. A split hub is one in which the spokes and the rim are manufactured separately, and the spokes and the rim are connected by welding to form a car hub. In the prior art, the rim and the spokes are spot welded and then the inner ring seam welding and the outer ring seam welding are performed separately. The inner ring seam welding and the outer ring seam welding need to be completed on different equipment and need to be manually transferred. The whole process has many steps and is inefficient, resulting in a waste of time and is not conducive to efficient production. Therefore, a double-head welding machine is needed to solve the above technical problems. Utility Model Content

[0003] In view of the above defects in the prior art, the utility model provides a double-head welding machine, including two welding machines, the welding machines including a control box and a welding head, the welding head is connected to the control box through a connecting line, the two welding machines are arranged on a vertical frame, the vertical frame is connected to a linear module, and the lower end of the vertical frame is fixedly connected to the slide table of the linear module;

[0004] The two welding machines are arranged up and down on the vertical frame, the control box is fixed on the vertical frame, and the vertical frame is provided with two upper and lower connecting blocks, the two connecting blocks are respectively fixedly connected to a horizontal rod, and the two welding heads are respectively arranged at one end of the same side of the two horizontal rods;

[0005] The vertical frame is provided with two parallel vertical grooves, and screws are provided in the two vertical grooves. The two ends of the screws are rotatably connected to the two ends of the corresponding vertical grooves through bearings, wherein one end of the screw passes through the vertical groove and is connected to a forward and reverse motor 1, and a slider is slidably provided in the vertical groove, and the slider is matched with the screw thread, and the two connecting blocks are fixed on the corresponding sliders respectively. The vertical frame and the two welding machines on the vertical frame can be driven to move back and forth along the linear module through the slide table, thereby improving the flexibility of welding; through the forward and reverse rotation of the two forward and reverse motors 1, the two sliders can be controlled to move up and down along the corresponding screws, thereby flexibly controlling the positions of the two welding heads in the vertical direction, thereby cooperating with the welding operations on rims of different sizes, thereby improving the utilization rate of the equipment.

[0006] Preferably, the horizontal rod is a retractable electric push rod, the fixed end of the horizontal rod is fixedly connected to the connecting block, and the retractable end of the horizontal rod is connected to the welding head. The horizontal positions of the two welding heads can be flexibly controlled by the extension and contraction of the horizontal rod, so as to facilitate welding operations at different positions of the rim.

[0007] Preferably, the telescopic end of the horizontal rod is fixedly connected with a mounting plate, and the side of the mounting plate away from the horizontal rod is rotatably connected with a rotating shaft through a bearing, a gear 1 is fixed on the rotating shaft, and a fixing block is fixedly connected to the lower end of the gear 1, and the welding head is fixed on the fixing block, and the gear 1 is meshed with a gear 2, and the gear 2 is connected with a forward and reverse motor 2, and the forward and reverse motor 2 is fixed on the mounting plate. The arrangement here can drive the gear 2 to rotate through the forward and reverse motor 2, and the gear 2 drives the gear 1 to rotate, so that the welding head is tilted at a certain angle, which meets the need for the welding head to be tilted during the welding process, and further improves the welding effect.

[0008] Preferably, the two forward and reverse motors connected by the screws are respectively fixed at the top and the bottom of the vertical frame, and the slide is provided with a receiving cavity, and the forward and reverse motor located at the bottom of the vertical frame is fixed in the receiving cavity.

[0009] The utility model also includes other components that enable a double-head welding machine to be used normally, such as a jig for placing and rotating the rim that cooperates with the double-head welding machine, a control component of the first and second forward and reverse motors, a control component of the electric push rod, a control component of the linear module, a control component of the welding machine, etc., which are all commonly used equipment in the field and are conventional technical means in the field. In addition, the devices or components not limited in the utility model, such as the electric push rod, the linear module, the welding head, the control box, the connecting wire, etc., all adopt conventional technical means and conventional equipment in the field.

[0010] Working principle: Under the action of the linear module, the vertical frame is driven to move by the slide table. The forward and reverse rotation of the forward and reverse motor 1 can make the slider drive the welding head to move up and down along the screw. The vertical distance between the upper and lower welding heads can be reasonably adjusted according to the size of the rim, so that the upper welding head is located outside the rim and the lower welding head extends into the rim. Then, the horizontal positions of the two welding heads are reasonably adjusted through the extension and retraction of the electric push rod, so that the upper welding head can weld the position of the outer wall of the rim that needs to be welded, and the lower welding head can weld the position of the inner wall of the rim that needs to be welded; during welding, the inclination position of the two welding heads is reasonably adjusted through the forward and reverse rotation of the forward and reverse motor 2, so as to further improve the welding accuracy and improve the welding quality.

[0011] The utility model has the beneficial effects of being able to simultaneously perform internal and external welding on the rim, thereby improving welding efficiency, avoiding the transportation of the rim, saving time, and being conducive to improving production quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 This is a structural schematic diagram of a double-head welding machine in an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Rear view of

[0015] Figure 3 for Figure 1 Left view of the center welding head;

[0016] Figure 4 for Figure 3 The state diagram after the welding head rotates a certain angle.

[0017] In the figure: 1. Linear module; 2. Slide; 3. Vertical frame; 4. Horizontal rod; 5. Control box; 6. Mounting plate; 7. Forward and reverse motor 2; 8. Gear 2; 9. Rotating shaft; 10. Gear 1; 11. Fixed block; 12. Welding head; 13. Forward and reverse motor 1; 14. Screw; 15. Slider; 16. Connecting block; 17. Connecting wire. DETAILED DESCRIPTION

[0018] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0019] Example

[0020] like Figure 1-4 As shown, the utility model provides a double-head welding machine, including two welding machines, the welding machine includes a control box 5 and a welding head 12, the welding head 12 is connected to the control box 5 through a connecting line 17, and is characterized in that: the two welding machines are arranged on a vertical frame 3, the vertical frame 3 is connected to a linear module 1, and the lower end of the vertical frame 3 is fixedly connected to the slide 2 of the linear module 1;

[0021] The two welding machines are arranged up and down on the vertical frame 3, the control box 5 is fixed on the vertical frame 3, and the vertical frame 3 is provided with two upper and lower connecting blocks 16, the two connecting blocks 16 are respectively fixedly connected to a horizontal rod 4, and the two welding heads 12 are respectively arranged at one end of the same side of the two horizontal rods 4;

[0022] The vertical frame 3 is provided with two parallel vertical grooves, and screws 14 are provided in the two vertical grooves. The two ends of the screws 14 are rotatably connected to the two ends of the corresponding vertical grooves through bearings, wherein one end of the screw 14 passes through the vertical groove and is connected to a forward and reverse motor 13, and a slider 15 is slidably provided in the vertical groove, and the slider 15 is threadedly matched with the screw 14, and the two connecting blocks 16 are respectively fixed on the corresponding sliders 15. The vertical frame 3 and the two welding machines on the vertical frame 3 can be driven to reciprocate along the linear module 1 by the slide 2, thereby improving the flexibility of welding; the two sliders 15 can be controlled to move up and down along the corresponding screws 14 by the forward and reverse rotation of the two forward and reverse motors 13, thereby flexibly controlling the positions of the two welding heads 12 in the vertical direction, thereby coordinating the welding operations on rims of different sizes and improving the utilization rate of the equipment.

[0023] The horizontal rod 4 is a retractable electric push rod, the fixed end of the horizontal rod 4 is fixedly connected to the connecting block 16, and the retractable end of the horizontal rod 4 is connected to the welding head 12. The horizontal positions of the two welding heads 12 can be flexibly controlled by the extension and contraction of the horizontal rod 4, so as to facilitate welding operations at different positions of the rim.

[0024] The telescopic end of the horizontal rod 4 is fixedly connected with a mounting plate 6, and the side of the mounting plate 6 away from the horizontal rod 4 is rotatably connected with a rotating shaft 9 through a bearing, and a gear 10 is fixed on the rotating shaft 9, and a fixing block 11 is fixedly connected to the lower end of the gear 10, and the welding head 12 is fixed on the fixing block 11, and the gear 10 is meshed with a gear 2 8, and the gear 2 8 is connected with a forward and reverse motor 2 7, and the forward and reverse motor 2 7 is fixed on the mounting plate 6. The arrangement here can drive the gear 2 8 to rotate through the forward and reverse motor 2 7, and the gear 2 8 drives the gear 10 to rotate, so that the welding head 12 is tilted at a certain angle, which meets the need for the welding head 12 to be tilted during the welding process, and further improves the welding effect.

[0025] The forward and reverse motor 13 connected by the two screw rods 14 is respectively fixed on the top and the bottom of the vertical frame 3. The slide 2 is provided with a receiving cavity, and the forward and reverse motor 13 located at the bottom of the vertical frame 3 is fixed in the receiving cavity.

[0026] During operation, the wheel rim spokes to be welded are placed on a jig that cooperates with the double-head welding machine, and the slide 2 drives the vertical frame 3 to move toward the rim. The vertical distance between the upper and lower welding heads 12 is reasonably adjusted according to the size of the rim, so that the upper welding head 12 is located outside the rim and the lower welding head 12 extends into the rim. Then, the horizontal positions of the two welding heads 12 are reasonably adjusted through the extension and retraction of the electric push rod, so that the upper welding head 12 can weld the position of the outer wall of the rim that needs to be welded, and the lower welding head 12 can weld the position of the inner wall of the rim that needs to be welded; during welding, the tilted positions of the two welding heads 12 are reasonably adjusted through the forward and reverse rotation of the forward and reverse motor 2 7, so as to further improve the welding accuracy and improve the welding quality.

[0027] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double-head welding machine, comprising two welding machines, each of which comprises a control box and a welding head, wherein the welding head is connected to the control box via a connecting line, and is characterized in that: The two welding machines are arranged on a vertical frame, the vertical frame is connected with a linear module, and the lower end of the vertical frame is fixedly connected with a slide table of the linear module; The two welding machines are arranged up and down on the vertical frame, the control box is fixed on the vertical frame, and the vertical frame is provided with two upper and lower connecting blocks, the two connecting blocks are respectively fixedly connected to a horizontal rod, and the two welding heads are respectively arranged at one end of the same side of the two horizontal rods; The vertical frame is provided with two parallel vertical grooves, and screws are provided in the two vertical grooves. The two ends of the screw are rotatably connected to the two ends of the corresponding vertical grooves through bearings, wherein one end of the screw passes through the vertical groove and is connected to a forward and reverse motor, and a slider is slidably arranged in the vertical groove, and the slider cooperates with the screw thread, and the two connecting blocks are respectively fixed on the corresponding sliders.

2. A double-head welding machine according to claim 1, characterized in that: The horizontal rod is a telescopic electric push rod, the fixed end of the horizontal rod is fixedly connected to the connecting block, and the telescopic end of the horizontal rod is connected to the welding head.

3. A double-head welding machine according to claim 1, characterized in that: The telescopic end of the horizontal rod is fixedly connected to a mounting plate, and the mounting plate is rotatably connected to a rotating shaft via a bearing on a side away from the horizontal rod. Gear 1 is fixed to the rotating shaft, and a fixed block is fixedly connected to the lower end of gear 1. The welding head is fixed on the fixed block, and gear 1 is meshed with gear 2. Gear 2 is connected to forward and reverse motor 2, and forward and reverse motor 2 is fixed to the mounting plate.

4. A double-head welding machine according to claim 1, characterized in that: The two forward and reverse motors connected by the screws are respectively fixed on the top and bottom of the vertical frame. The slide is provided with a receiving cavity, and the forward and reverse motor located at the bottom of the vertical frame is fixed in the receiving cavity.

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