Positioning mechanism for welding base and barrel of roof fan

Abstract

The utility model discloses a positioning mechanism for welding a base and a barrel of a roof fan, which comprises a rack, a middle support plate is fixed in the middle of the top surface of a top plate of the rack, a middle support frame is fixed on the top surface of the middle support plate, and a fan base is inserted and sleeved on the top surface of the top plate part of the middle support frame; an upper supporting frame is fixed to the top face of a top plate of the rack, upper pressing air cylinders are fixed to the top faces of the edges of the top plate of the upper supporting frame, push rods of the upper pressing air cylinders penetrate through the bottom face of the top plate of the upper supporting frame and are fixedly provided with frame-shaped pressing plates, and frame-shaped elastic plates are fixed to the bottom faces of the frame-shaped pressing plates. And the frame-shaped elastic plate is pressed against the top surface of the side part of the fan base. Compared with the prior art, the fan base and the air duct can be automatically aligned and pressed, follow-up manual welding is facilitated, only one-man operation is needed, the effect is good, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, and more specifically to a positioning mechanism for welding the base and cylinder of a roof fan. Background Technology

[0002] In the current manufacturing process of roof ventilators, the base and the duct need to be welded together. The existing method is to manually support and press the base and the duct together, ensuring that the through holes in the middle of the duct and the base are aligned and connected. Then, welding is carried out. This requires one person to support the duct and the base while another person performs the welding operation. The result is poor performance, low efficiency, and a large amount of manual labor. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a positioning mechanism for welding the base and cylinder of a roof ventilator. It can automatically align and press the ventilator base and cylinder together, which facilitates subsequent manual welding. It can be operated by a single person and has good effect and high efficiency.

[0004] The solution of this utility model to the aforementioned technical problem is:

[0005] A positioning mechanism for welding the base and cylinder of a roof fan includes a frame, an intermediate support plate is fixed in the middle of the top surface of the top plate of the frame, an intermediate support frame is fixed on the top surface of the intermediate support plate, and a fan base is inserted into the top surface of the top plate of the intermediate support frame.

[0006] An upper support frame is fixed on the top surface of the top plate of the frame. An upper pressing cylinder is fixed on the top surface of the edge of the top plate of the upper support frame. The push rods of all the upper pressing cylinders pass through the bottom surface of the top plate of the upper support frame and are fixed with a frame-type pressing plate. A frame-type elastic plate is fixed on the bottom surface of the frame-type pressing plate. The frame-type elastic plate presses against the top surface of the edge of the fan base.

[0007] A positioning and clamping cylinder is fixed in the middle of the top surface of the top plate of the upper support frame. The push rod of the positioning and clamping cylinder passes through the bottom surface of the top plate of the upper support frame and is fixed with a frustum block. The air duct to be processed is placed on the top surface of the fan base. The lower part of the frustum block is inserted into the air duct. The conical outer wall of the frustum block presses against the inner wall of the top of the air duct. The air duct and the middle through hole of the fan base are aligned and connected. The bottom surface of the air duct presses against the top surface of the fan base.

[0008] The lower part of the intermediate support frame is formed with a through groove running from front to back. The material receiving moving trough is inserted into the through groove. The top plate of the intermediate support frame has an upper through hole in the middle. The upper through hole is aligned with and communicates with the middle through hole of the fan base. The material receiving moving trough is located directly below the upper through hole.

[0009] The bottom surface of the receiving and moving trough is fixed with multiple self-lubricating layers, and the bottom surface of the self-lubricating layers presses against the top surface of the intermediate support plate.

[0010] A handle is fixed on one side of the outer wall of the material receiving and moving trough.

[0011] The top surface of the frustum-shaped block has a frustum-shaped groove formed in the middle. The bottom end of the push rod of the positioning and clamping cylinder is fixed with a fixing plate, which is fixed to the bottom surface of the frustum-shaped groove in the middle.

[0012] Reinforcing plates are fixed to the inner wall and bottom surface of the frustum-shaped groove.

[0013] The frustum-shaped block is a polytetrafluoroethylene block.

[0014] The outstanding effect of this utility model is:

[0015] Compared with existing technologies, it can automatically align and press the fan base and the air duct together, facilitating subsequent manual welding. It only requires one person to operate and has good results and high efficiency. Attached Figure Description

[0016] Figure 1 This is a partial sectional view of the present invention;

[0017] Figure 2 This is a partial top view of the machine frame. Detailed Implementation

[0018] For example, see below. Figures 1 to 2 As shown, a positioning mechanism for welding the base and cylinder of a roof fan includes a frame 10. A middle support plate 11 is fixed in the middle of the top surface of the top plate of the frame 10. A middle support frame 12 is fixed on the top surface of the middle support plate 11. A fan base 100 is inserted into the top surface of the top plate of the middle support frame 12.

[0019] An upper support frame 20 is fixed on the top surface of the top plate of the frame 10. An upper pressing cylinder 21 is fixed on the top surface of the edge of the top plate of the upper support frame 20. The push rods of all the upper pressing cylinders 21 pass through the bottom surface of the top plate of the upper support frame 20 and are fixed with a frame-type pressing plate 22. A frame-type elastic plate 23 is fixed on the bottom surface of the frame-type pressing plate 22. The frame-type elastic plate 23 presses against the top surface of the edge of the fan base 100.

[0020] A positioning and clamping cylinder 24 is fixed in the middle of the top surface of the top plate of the upper support frame 20. The push rod of the positioning and clamping cylinder 24 passes through the bottom surface of the top plate of the upper support frame 20 and is fixed with a frustum block 25. The air duct 200 to be processed is placed on the top surface of the fan base 100. The lower part of the frustum block 25 is inserted into the air duct 200. The conical outer side wall of the frustum block 25 presses against the inner side wall of the top of the air duct 200. The air duct 200 and the central through hole of the fan base 100 are aligned vertically and communicate with each other. The bottom surface of the air duct 200 presses against the top surface of the fan base 100. The central axis of the central through hole of the fan base 100 overlaps with the central axis of the frustum block 25.

[0021] Furthermore, the lower part of the intermediate support frame 12 is formed with a through groove 121 that runs from front to back. The material receiving moving trough 30 is inserted into the through groove 121. The top plate of the intermediate support frame 12 has an upper through hole 122 in the middle. The upper through hole 122 is aligned vertically with and communicates with the middle through hole of the fan base 100. The material receiving moving trough 30 is located directly below the upper through hole 122.

[0022] Furthermore, the bottom surface of the receiving moving trough 30 is fixed with multiple self-lubricating layers 31, and the bottom surface of the self-lubricating layers 31 presses against the top surface of the intermediate support plate 11.

[0023] Furthermore, a handle 32 is fixed on one side of the outer wall of the receiving moving trough 30.

[0024] Furthermore, a frustum-shaped groove 251 is formed in the middle of the top surface of the frustum-shaped block 25, and a fixing plate 241 is fixed to the bottom end of the push rod of the positioning and pressing cylinder 24. The fixing plate 241 is fixed to the bottom surface of the middle part of the frustum-shaped groove 251.

[0025] Furthermore, reinforcing plates 252 are fixed to the inner wall and bottom surface of the frustum-shaped groove 251.

[0026] Furthermore, the frustum-shaped block 25 is a polytetrafluoroethylene block.

[0027] In this embodiment, a control host and a pneumatic system are installed on one side of the frame 10. The air pump and control valve of the pneumatic system are electrically connected to the control host through an electrical connection line. The air pump is connected to the control valve through a connecting pipe. The control valve is connected to the upper pressing cylinder 21 and the positioning pressing cylinder 24 through a connecting pipe. The control host and the pneumatic system are common structures that can be purchased directly and will not be described in detail.

[0028] In this embodiment, when in use, the fan base 100 to be processed is inserted into the top surface of the top plate of the intermediate support frame 12. In this embodiment, the intermediate support frame 12 is fixedly connected to the intermediate support plate 11 by bolts. The corresponding intermediate support frame 12 can be replaced according to the fan base 100 of different sizes.

[0029] The side of the fan base 100 is close to the side wall of the top plate of the intermediate support frame 12. Then, by pushing the push rods of all the upper pressing cylinders 21, the frame-shaped elastic plate 23 is pressed against the top surface of the edge of the fan base 100 and pressed and fixed.

[0030] Then, the air duct 200 to be processed is manually placed on the top surface of the fan base 100. Then, the push rod of the positioning and clamping cylinder 24 is pushed so that the lower part of the frustum block 25 is inserted into the air duct 200. As the frustum block 25 continues to descend, its conical outer wall presses against the inner wall of the top of the air duct 200, and automatically corrects and aligns it so that the air duct 200 is aligned and connected with the middle through hole of the fan base 100. The bottom surface of the air duct 200 presses against the top surface of the fan base 100 to achieve positioning and clamping. Then, manual welding can be performed. When welding the inner side of the air duct 200, the waste generated can fall into the receiving moving trough 30. After a certain period of use, the receiving moving trough 30 can be removed and emptied, which is very convenient.

[0031] Its air duct 200 and fan base 100 have good automatic alignment and connection, greatly reducing manual labor.

[0032] Finally, the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model, and the patent protection scope of the present utility model should be defined by the claims.

Claims

1. A positioning mechanism for welding the base and cylinder of a roof ventilator, comprising a frame (10), characterized in that: A middle support plate (11) is fixed in the middle of the top surface of the top plate of the frame (10), a middle support frame (12) is fixed on the top surface of the middle support plate (11), and a fan base (100) is inserted on the top surface of the top plate of the middle support frame (12). An upper support frame (20) is fixed on the top surface of the top plate of the frame (10). An upper pressing cylinder (21) is fixed on the top surface of the edge of the top plate of the upper support frame (20). The push rods of all the upper pressing cylinders (21) pass through the bottom surface of the top plate of the upper support frame (20) and are fixed with a frame-type pressing plate (22). A frame-type elastic plate (23) is fixed on the bottom surface of the frame-type pressing plate (22). The frame-type elastic plate (23) presses against the top surface of the edge of the fan base (100). A positioning and pressing cylinder (24) is fixed in the middle of the top surface of the top plate of the upper support frame (20). The push rod of the positioning and pressing cylinder (24) passes through the bottom surface of the top plate of the upper support frame (20) and is fixed with a frustum block (25). The air duct (200) to be processed is placed on the top surface of the fan base (100). The lower part of the frustum block (25) is inserted into the air duct (200). The conical outer side wall of the frustum block (25) presses against the inner side wall of the top of the air duct (200). The air duct (200) and the middle through hole of the fan base (100) are aligned and connected. The bottom surface of the air duct (200) presses against the top surface of the fan base (100).

2. The positioning mechanism for welding the base and cylinder of a roof ventilator according to claim 1, characterized in that: The lower part of the intermediate support frame (12) is formed with a through groove (121) that runs from front to back. The material receiving moving trough (30) is inserted into the through groove (121). The top plate of the intermediate support frame (12) has an upper through hole (122) in the middle. The upper through hole (122) is aligned with and communicates with the middle through hole of the fan base (100). The material receiving moving trough (30) is located directly below the upper through hole (122).

3. The positioning mechanism for welding the base and cylinder of a roof ventilator according to claim 2, characterized in that: The bottom surface of the receiving moving trough (30) is fixed with multiple self-lubricating layers (31), and the bottom surface of the self-lubricating layers (31) presses against the top surface of the intermediate support plate (11).

4. The positioning mechanism for welding the base and cylinder of a roof ventilator according to claim 3, characterized in that: A handle (32) is fixed on one side of the outer wall of the receiving and moving trough (30).

5. The positioning mechanism for welding the base and cylinder of a roof ventilator according to claim 1, characterized in that: The top surface of the frustum block (25) has a frustum groove (251) formed in the middle. The bottom end of the push rod of the positioning and pressing cylinder (24) is fixed with a fixing plate (241), which is fixed on the bottom surface of the frustum groove (251).

6. The positioning mechanism for welding the base and cylinder of a roof ventilator according to claim 5, characterized in that: The inner wall and bottom surface of the frustum-shaped groove (251) are both fixed with reinforcing plates (252).

7. The positioning mechanism for welding the base and cylinder of a roof ventilator according to claim 1, characterized in that: The frustum-shaped block (25) is a polytetrafluoroethylene block.

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