Automatic welding device for industrial fan

Abstract

The utility model discloses an automatic welding device for an industrial fan, and particularly relates to the field of welding devices, the automatic welding device comprises an outer shell and a transmission shaft, the top of the outer shell is movably connected with an annular fixing mechanism for welding the industrial fan; the annular fixing mechanism comprises a rotating disc, a first electric push rod, a transmission frame, a supporting rod, an arc-shaped push plate, a sliding rod, a sliding groove and a limiting pulley. The top of the arc-shaped push plate is sleeved with the fan head, then the first electric push rod is started, the first electric push rod shrinks to drive the transmission frame to descend and drive the supporting rod to rotate downwards on the inner side of the arc-shaped push plate, meanwhile, the supporting rod reversely pushes the arc-shaped push plate to translate outwards, and in the process, the limiting pulley slides along the bottom of the rotating disc; and the sliding rod is driven to translate outwards in the sliding groove along with the arc-shaped push plate, so that the arc-shaped push plate can be driven to translate outwards and expand, the fan head is fixed from the inside, the stability in the welding process is improved, and the welding effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of welding devices, and more specifically, to an automatic welding device for industrial fans. Background Art

[0002] Welding devices are mainly divided into two types according to welding materials: plastic welding machines and metal welding machines. The technologies used mainly include: laser, ultrasonic, high frequency, plasma, electric heating, etc. Among them, laser welding machines use high-energy laser pulses to locally heat the material in a small area, melt the material and combine it together. It is mainly used for welding metal plates with a high aspect ratio and is an emerging welding method.

[0003] After searching, the existing patent (publication number: CN207087184U) discloses a welding device that can improve the overall welding operation efficiency. The welding device has: a welding machine, which welds the workpiece; a first arm, which is configured to hold the workpiece to be welded by the welding machine and move toward the welding machine; and a second arm, which is configured to hold the workpiece after being welded by the welding machine and move toward the next process. The first arm and the second arm are formed integrally and configured to be able to move along the first direction using a dual-arm actuator, thereby improving the overall welding operation efficiency of the welding operation. In the process of realizing the utility model, the inventor found that the prior art has the following problems:

[0004] Most existing welding devices use two parallel mechanical arms to clamp and fix the parts to be welded, and then use the mechanical arms to drive the parts to align for welding. However, when the parts to be welded are replaced with the fan head and blades of an industrial fan, the connection between the fan head and the blades is located outside the fan head, and the fan head is mostly semicircular. This results in the traditional clamping mechanism being unable to effectively fix the fan head. In addition, there is no corresponding solution to this problem in the above-mentioned patent document, so it is necessary to install an annular fixing mechanism.

[0005] Therefore, in view of the above problems, an automatic welding device for industrial fans is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an automatic welding device for an industrial fan to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic welding device for industrial fans, comprising an outer shell and a transmission shaft, the top of the outer shell is movably connected with an annular fixing mechanism for industrial fan welding, the annular fixing mechanism comprises a turntable, an electric push rod, a transmission frame, a support rod, an arc push plate, a slide rod, a slide groove and a limiting pulley.

[0008] The turntable is connected to the top of the outer shell through a bearing, an electric push rod is fixedly connected to the middle of the turntable, the top of the electric push rod is fixedly connected to a transmission frame, the outer side of the transmission frame is connected to multiple groups of support rods through a rotating shaft, the bottom of the support rod is connected to an arc-shaped push plate through a rotating shaft, the bottom of the arc-shaped push plate is fixedly connected to a slide rod, multiple groups of slide grooves are provided on the outer side of the turntable, two groups of limiting pulleys are fixedly connected to both sides of the bottom of the slide rod, and the middle part of the bottom side of the turntable is fixedly connected to the top of the transmission shaft.

[0009] Preferably, a fixing frame is fixedly connected to the bottom of the outer shell, and a base is fixedly connected to the bottom of the fixing frame.

[0010] Preferably, a limiting slide rail is fixedly connected to one side of the top of the base, a support frame is sleeved on the outside of the limiting slide rail, and an electric push rod 2 is fixedly connected to one side of the bottom of the support frame.

[0011] Preferably, a lower clamping plate is fixedly connected inside the support frame, an electric push rod three is fixedly connected to the top of the support frame, an upper clamping plate is fixedly connected to the bottom of the electric push rod three, and a laser welding head is fixedly connected to one side of the top of the support frame.

[0012] Preferably, a servo motor is fixedly connected to one side of the inner part of the outer shell, the servo motor is connected to a driving shaft via an output shaft, and a belt is sleeved on the outer part of the driving shaft.

[0013] Preferably, a transmission shaft is sleeved inside the other side of the belt, and the transmission shaft is connected to the inside of the outer shell through a bearing.

[0014] Preferably, the support rod performs rotational motion on one side of the arc-shaped push plate through an electric push rod and a transmission frame.

[0015] Preferably, the slide bar passes through the interior of the slide groove, and the slide bar performs translational motion inside the slide groove through an arc-shaped push plate and a limiting pulley.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the automatic welding device for industrial fans is implemented by putting the fan head on the outer side of the top of the arc-shaped push plate, and then the user starts the electric push rod 1. The electric push rod 1 contracts and drives the transmission frame to descend, driving the support rod to rotate downward on the inner side of the arc-shaped push plate, and at the same time, the support rod pushes the arc-shaped push plate to move outward in the opposite direction. During this process, the limiting pulley slides along the bottom of the turntable, driving the slide rod to move outward in the slide groove along with the arc-shaped push plate. In this way, the arc-shaped push plate can be driven to move outward and expand, thereby fixing the fan head from the inside, increasing the stability during welding and improving the welding effect.

[0018] 2. Compared with the prior art, the automatic welding device for industrial fans supports and fixes the outer shell through a fixing frame and a base, thereby increasing the stability of the device; the supporting frame is pushed by a second electric push rod to slide horizontally on the outside of the limit slide rail, thereby facilitating the subsequent welding operation; the upper clamping plate is driven to descend and overlap with the lower clamping plate by a third electric push rod, thereby clamping and fixing the fan blades; the curvature of the contact surface between the upper clamping plate and the lower clamping plate is the same as the curvature of the fan blades; the bottom of the laser welding head is located at a fixed position at the front end of the upper clamping plate; the active shaft and the belt are driven by a servo motor to rotate inside the outer shell, thereby transferring kinetic energy to the rotation; the transmission shaft is driven by a belt and a bearing to rotate inside the outer shell, thereby driving the fan head to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a side view structural schematic diagram of the support frame of the utility model.

[0021] Figure 3 It is a schematic diagram of the internal structure of the outer shell of the utility model.

[0022] Figure 4 It is a schematic diagram of the top view of the annular fixing mechanism of the utility model.

[0023] Figure 5 It is a side sectional structural schematic diagram of the annular fixing mechanism of the utility model.

[0024] The accompanying drawings are marked as follows: 1. base; 2. limit slide rail; 3. support frame; 4. electric push rod 2; 5. laser welding head; 6. annular fixing mechanism; 601. turntable; 602. electric push rod 1; 603. transmission frame; 604. support rod; 605. arc push plate; 606. slide rod; 607. slide groove; 608. limit pulley; 7. outer shell; 8. fixing frame; 9. electric push rod 3; 10. upper clamping plate; 11. lower clamping plate; 12. servo motor; 13. driving shaft; 14. belt; 15. transmission shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] As attached Figure 4 and Figure 5 An automatic welding device for industrial fans shown in the figure includes an outer shell 7 and a transmission shaft 15. The top of the outer shell 7 is movably connected with an annular fixing mechanism 6 for industrial fan welding. The annular fixing mechanism 6 includes a turntable 601, an electric push rod 602, a transmission frame 603, a support rod 604, an arc push plate 605, a slide rod 606, a slide groove 607 and a limiting pulley 608.

[0028] The turntable 601 is connected to the top of the outer shell 7 through a bearing, and an electric push rod 602 is fixedly connected to the middle of the turntable 601, and a transmission frame 603 is fixedly connected to the top of the electric push rod 602. A plurality of support rods 604 are connected to the outside of the transmission frame 603 through a rotating shaft, and an arc-shaped push plate 605 is connected to the bottom of the support rod 604 through a rotating shaft, and a slide bar 606 is fixedly connected to the bottom of the arc-shaped push plate 605. A plurality of slide grooves 607 are provided on the outside of the turntable 601, and two groups of limiting pulleys 608 are fixedly connected to the two sides of the bottom of the slide bar 606. The middle part of the bottom side of the turntable 601 is fixedly connected to the top of the transmission shaft 15, and the support rod 604 rotates on one side of the arc-shaped push plate 605 through the electric push rod 602 and the transmission frame 603, and the slide bar 606 runs through the inside of the slide groove 607, and the slide bar 606 translates inside the slide groove 607 through the arc-shaped push plate 605 and the limiting pulley 608.

[0029] Among them: the user puts the fan head on the outer side of the top of the arc-shaped push plate 605, and then the user starts the electric push rod 602. The electric push rod 602 contracts and drives the transmission frame 603 to descend, driving the support rod 604 to rotate downward on the inner side of the arc-shaped push plate 605. At the same time, the support rod 604 pushes the arc-shaped push plate 605 to move outward in the opposite direction. During this process, the limiting pulley 608 slides along the bottom of the turntable 601, driving the slide rod 606 to move outward inside the slide groove 607 with the arc-shaped push plate 605. In this way, the arc-shaped push plate 605 can be driven to move outward and expand, thereby fixing the fan head from the inside, increasing the stability during welding, and improving the welding effect.

[0030] Embodiment 2

[0031] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working method, as described below:

[0032] See also Figure 1-Figure 5 As shown,

[0033] As a preferred embodiment, a fixing frame 8 is fixedly connected to the bottom of the outer shell 7, and a base 1 is fixedly connected to the bottom of the fixing frame 8; further, the top surface of the fixing frame 8 is inclined, and the inclination angle is the same as the inclination angle between the fan blades and the fan head. The outer shell 7 is supported and fixed by the fixing frame 8 and the base 1, thereby increasing the stability of the device.

[0034] As a preferred embodiment, a limiting slide rail 2 is fixedly connected to one side of the top of the base 1, a support frame 3 is sleeved on the outside of the limiting slide rail 2, and an electric push rod 2 4 is fixedly connected to one side of the bottom of the support frame 3; further, the support frame 3 is pushed by the electric push rod 2 4 to slide horizontally on the outside of the limiting slide rail 2, which facilitates the subsequent welding operation.

[0035] As a preferred embodiment, a lower clamping plate 11 is fixedly connected inside the support frame 3, an electric push rod 3 9 is fixedly connected to the top of the support frame 3, an upper clamping plate 10 is fixedly connected to the bottom of the electric push rod 3 9, and a laser welding head 5 is fixedly connected to one side of the top of the support frame 3; further, the upper clamping plate 10 is driven by the electric push rod 3 9 to descend and overlap with the lower clamping plate 11, thereby clamping and fixing the fan blades, the curvature of the contact surface between the upper clamping plate 10 and the lower clamping plate 11 is the same as the curvature of the fan blades, and the bottom of the laser welding head 5 is located at the front end fixed position of the upper clamping plate 10.

[0036] As a preferred embodiment, a servo motor 12 is fixedly connected to one side of the inner part of the outer shell 7, the servo motor 12 is connected to a driving shaft 13 through an output shaft, and a belt 14 is sleeved on the outer part of the driving shaft 13; further, the driving shaft 13 and the belt 14 are driven by the servo motor 12 to rotate inside the outer shell 7, thereby converting kinetic energy into rotation.

[0037] As a preferred embodiment, a transmission shaft 15 is sleeved inside the other side of the belt 14, and the transmission shaft 15 is connected to the inside of the outer shell 7 through a bearing; further, the transmission shaft 15 is driven to rotate inside the outer shell 7 through the belt 14 and the bearing, thereby driving the fan head to rotate.

[0038] As a preferred embodiment, the support rod 604 rotates on one side of the arc-shaped push plate 605 through the electric push rod 602 and the transmission frame 603; further, the support rod 604 is driven to rotate on one side of the arc-shaped push plate 605 through the electric push rod 602 and the transmission frame 603, and at the same time, the support rod 604 pushes the arc-shaped push plate 605 to move outward in the opposite direction.

[0039] As a preferred embodiment, the slide rod 606 passes through the slide groove 607, and the slide rod 606 performs translational motion inside the slide groove 607 through the arc-shaped push plate 605 and the limiting pulley 608; further, the slide rod 606 is driven by the limiting pulley 608 to translate outward inside the slide groove 607 along with the arc-shaped push plate 605, thereby fixing the fan head support outside the arc-shaped push plate 605.

[0040] The working process of the utility model is as follows:

[0041] First, the user installs and stores the automatic welding device for industrial fans in an indoor environment. When the fan head and blades of the industrial fan need to be welded and assembled, the user takes out the device and places the base 1 on a horizontal table so that the fixing frame 8 is in a vertical direction. Then the user puts the fan head on the outside of the top of the arc-shaped push plate 605. Then the user starts the electric push rod 602. The electric push rod 602 contracts and drives the transmission frame 603 to descend, driving the support rod 604 to rotate downward on the inside of the arc-shaped push plate 605. At the same time, the support rod 604 pushes the arc-shaped push plate 605 to move outward in the opposite direction. During this process, the limiting pulley 608 slides along the bottom of the turntable 601, driving the slide rod 606 to move outward along with the arc-shaped push plate 605 in the slide groove 607, and finally fixes the fan head from the inside. Then the user places the fan blades on Above the lower clamping plate 11 inside the support frame 3, then start the electric push rod three 9, the electric push rod three 9 drives the upper clamping plate 10 to descend, clamps the fan blades, and then starts the electric push rod two 4, the electric push rod two 4 drives the support frame 3 to translate along the limiting slide rail 2 on the top of the base 1, and pushes the fan blades to the outside of the fan head. When the fan head and the fan blades are in contact at the connection, the user starts the laser welding head 5 to weld the connection between the fan head and the fan blades. After welding is completed, start the electric push rod two 4 and the electric push rod three 9 in reverse to drive the support frame 3 and the upper clamping plate 10 to reset, and then the user turns on the servo motor 12 inside the outer shell 7 to drive the active shaft 13 and the belt 14 to rotate, the belt 14 drives the transmission shaft 15 and the turntable 601 to rotate, and then drives the fan head to rotate, and then repeats the above operations to connect multiple sets of fan blades outside the fan head.

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An automatic welding device for an industrial fan, comprising an outer shell (7) and a transmission shaft (15), characterized in that: The top of the outer shell (7) is movably connected with an annular fixing mechanism (6) for welding an industrial fan, and the annular fixing mechanism (6) comprises a turntable (601), an electric push rod (602), a transmission frame (603), a support rod (604), an arc-shaped push plate (605), a slide rod (606), a slide groove (607) and a limit pulley (608); The turntable (601) is connected to the top of the outer shell (7) through a bearing, and an electric push rod (602) is fixedly connected to the middle of the turntable (601), and a transmission frame (603) is fixedly connected to the top of the electric push rod (602). The outer side of the transmission frame (603) is connected to multiple groups of support rods (604) through a rotating shaft, and the bottom of the support rod (604) is connected to an arc-shaped push plate (605) through a rotating shaft. The bottom of the arc-shaped push plate (605) is fixedly connected to a slide bar (606), and multiple groups of slide grooves (607) are provided on the outer side of the turntable (601). Two groups of limiting pulleys (608) are fixedly connected to both sides of the bottom of the slide bar (606), and the middle part of the bottom side of the turntable (601) is fixedly connected to the top of the transmission shaft (15).

2. The automatic welding device for industrial fans according to claim 1, characterized in that: The bottom of the outer shell (7) is fixedly connected to a fixing frame (8), and the bottom of the fixing frame (8) is fixedly connected to a base (1).

3. The automatic welding device for industrial fans according to claim 2 is characterized in that: A limiting slide rail (2) is fixedly connected to one side of the top of the base (1), a support frame (3) is sleeved on the outside of the limiting slide rail (2), and an electric push rod 2 (4) is fixedly connected to one side of the bottom of the support frame (3).

4. The automatic welding device for industrial fans according to claim 3 is characterized in that: The support frame (3) is fixedly connected to a lower clamping plate (11) inside, the top of the support frame (3) is fixedly connected to an electric push rod three (9), the bottom of the electric push rod three (9) is fixedly connected to an upper clamping plate (10), and one side of the top of the support frame (3) is fixedly connected to a laser welding head (5).

5. The automatic welding device for industrial fans according to claim 1, characterized in that: A servo motor (12) is fixedly connected to one side of the inner part of the outer shell (7); the servo motor (12) is connected to a driving shaft (13) via an output shaft; and a belt (14) is sleeved on the outer part of the driving shaft (13).

6. The automatic welding device for industrial fans according to claim 5, characterized in that: A transmission shaft (15) is sleeved inside the other side of the belt (14), and the transmission shaft (15) is connected to the inside of the outer shell (7) via a bearing.

7. The automatic welding device for industrial fans according to claim 1, characterized in that: The support rod (604) performs rotational motion on one side of the arc-shaped push plate (605) through the electric push rod 1 (602) and the transmission frame (603).

8. The automatic welding device for industrial fans according to claim 1, characterized in that: The slide bar (606) passes through the inside of the slide groove (607), and the slide bar (606) performs translational motion inside the slide groove (607) through the arc-shaped push plate (605) and the limiting pulley (608).

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