Welding positioning device of multi-channel heat exchanger

Abstract

The utility model discloses a welding positioning device of a multi-channel heat exchanger, which comprises a bottom plate, a side plate is fixed at the top of the bottom plate, two symmetrical support frames are arranged above the bottom plate, a connecting block is fixed on one side of each support frame close to the side plate, a connecting rod is fixed at the bottom of the connecting block, and the connecting rod is fixed on the bottom of the bottom plate. Mounting plates are fixed to the faces, close to each other, of the two connecting rods, the supporting frame is adjustably mounted on the side plates, an extrusion disc is concentrically arranged on the supporting frame, an S-shaped bent rod is concentrically fixed to the extrusion disc, and an adjusting mechanism for achieving mutual movement of the two mounting plates is mounted between the two mounting plates. The adjusting mechanism comprises a two-way lead screw rotationally arranged between the two installation plates, two lead screw nuts are installed on the two-way lead screw, and the S-shaped bent rods and the lead screw nuts are fixedly connected in a one-to-one correspondence mode. According to the welding device, welding operation is facilitated, the angle of the heat exchanger is adjusted for welding, and height adjustment can be achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchanger processing equipment, and in particular to a welding positioning device for multi-channel heat exchangers. Background Technology

[0002] A heat exchanger is a device that enables the transfer of heat between two or more fluids at different temperatures. Its basic working principle is to transfer heat from one object to another through thermal conduction.

[0003] Heat exchangers are mostly cylindrical in shape and generally have four channels, divided into two outlets and two inlets. The outlets and inlets are usually fixed to suitable openings on the outer wall of the heat exchanger by welding. However, the current welding method often involves placing the heat exchanger on a table or the ground for welding. This method is inconvenient to operate and is prone to instability and difficulty in fixing, making welding quite inconvenient. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding positioning device for multi-channel heat exchangers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding positioning device for a multi-channel heat exchanger includes a base plate, a side plate fixed to the top of the base plate, two symmetrical support frames arranged above the base plate, a connecting block fixed to the side of the support frame near the side plate, a connecting rod fixed to the bottom of the connecting block, and mounting plates fixed to the sides of the two connecting rods that are close to each other. The support frame is adjustablely mounted on the side plate, and an extrusion plate is concentrically arranged on the support frame. An S-bend rod is concentrically fixed to the extrusion plate. An adjustment mechanism is installed between the two mounting plates to enable the two mounting plates to move relative to each other.

[0007] As a further embodiment of this utility model, the adjusting mechanism includes a bidirectional lead screw rotatably disposed between two mounting plates, and two lead screw nuts are installed on the bidirectional lead screw. The S-shaped rod is fixedly connected to the lead screw nuts in a one-to-one correspondence.

[0008] As a further embodiment of this utility model, guide blocks are fixed at both ends of the outer wall of the lead screw nut, and two guide rods are fixed between the two mounting plates, with the guide rods passing through their corresponding guide blocks.

[0009] As a further embodiment of this utility model, a turntable coaxially fixed to the bidirectional lead screw is installed on the outer wall of one of the mounting plates.

[0010] As a further embodiment of this utility model, a sliding rod is fixed to the side of the connecting block facing the side plate by a fixing block. A sliding groove adapted to the fixing block and the sliding rod is provided on the side plate. The same connecting rod is fixed between the two mounting plates. Several brackets are fixed at equal intervals on the lower part of the outer wall of the side plate, and the connecting rod rests on the brackets. The mounting plate is provided with brackets, connecting rods and sliding grooves. Rotating the mounting plate counterclockwise and lifting the mounting plate causes the connecting rod to disengage from the bracket. The sliding rod rotates and slides in the sliding groove. When it moves to the bracket to be rested on, the connecting rod touches the outer wall of the side plate and then moves down into the corresponding bracket, realizing the height adjustment of the entire adjustment mechanism and support frame, which facilitates the adjustment of the appropriate height for welding operations.

[0011] As a further embodiment of this utility model, the bracket has a Z-shaped structure.

[0012] As a further embodiment of this utility model, the groove is a T-shaped structure.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention utilizes a base plate, side plates, support frame, connecting block, adjustment mechanism, extrusion plate, and S-bend rod. When the bidirectional lead screw rotates, the two lead screw nuts on it approach each other under the action of the guide rod. The S-bend rod and extrusion plate on the lead screw nuts move, and the two extrusion plates clamp and hold the two ends of the heat exchanger together, keeping them fixed. This facilitates welding of the inlet or outlet water channels on the heat exchanger. Then, by adjusting the mechanism, the extrusion plates are no longer clamping the heat exchanger, allowing the heat exchanger to rotate to the desired position. Again, by operating the adjustment mechanism, the two extrusion plates clamp the heat exchanger for welding of the inlet or outlet water channels, thus facilitating multi-channel welding.

[0015] This utility model is equipped with a bracket, a mounting rod, and a sliding groove. By rotating the mounting plate counterclockwise and lifting the mounting plate, the mounting rod is disengaged from the bracket. The sliding rod rotates and slides in the sliding groove. When it moves to the bracket to be mounted, the mounting rod adheres to the outer wall of the side plate and then moves down into the corresponding bracket, thereby realizing the height adjustment of the entire adjustment mechanism and support frame, which facilitates the adjustment of the appropriate height for welding operations. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the welding positioning device for the multi-channel heat exchanger proposed in this utility model.

[0017] Figure 2 This is a partial unfolded three-dimensional structural diagram of the welding positioning device for the multi-channel heat exchanger proposed in this utility model.

[0018] Figure 3 This is a partial three-dimensional structural diagram of the welding positioning device for the multi-channel heat exchanger proposed in this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the adjustment mechanism of the welding positioning device for the multi-channel heat exchanger proposed in this utility model.

[0020] In the diagram: 1. Base plate; 2. Side plate; 3. Support frame; 4. Connecting block; 5. Slide groove; 6. Slide rod; 7. Connecting rod; 8. Two-way lead screw; 9. Lead screw nut; 10. Guide block; 11. Extrusion plate; 12. S-bend rod; 13. Mounting plate; 15. Guide rod; 16. Turntable; 17. Support rod; 18. Bracket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Reference Figure 1-4 The welding positioning device for a multi-channel heat exchanger includes a base plate 1, a side plate 2 fixed to the top of the base plate 1, two symmetrical support frames 3 arranged above the base plate 1, a connecting block 4 fixed to the side of the support frame 3 near the side plate 2, a connecting rod 7 fixed to the bottom of the connecting block 4, and mounting plates 13 fixed to the sides of the two connecting rods 7 that are close to each other. The support frame 3 is adjustablely mounted on the side plate 2. An extrusion plate 11 is concentrically arranged on the support frame 3, and an S-bend rod 12 is concentrically fixed on the extrusion plate 11. An adjustment mechanism is installed between the two mounting plates 13 to enable the two mounting plates 13 to move relative to each other.

[0024] In this embodiment, the adjustment mechanism includes a bidirectional lead screw 8 rotatably disposed between two mounting plates 13, and two lead screw nuts 9 are installed on the bidirectional lead screw 8. The S-bend rod 12 is fixedly connected to the lead screw nuts 9 in a one-to-one correspondence.

[0025] In this embodiment, guide blocks 10 are fixed at both ends of the outer wall of the lead screw nut 9, and two guide rods 15 are fixed between the two mounting plates 13. The guide rods 15 pass through the guide blocks 10 corresponding to them.

[0026] In this embodiment, a turntable 16, which is coaxially fixed to the bidirectional lead screw 8, is installed on the outer wall of one of the mounting plates 13.

[0027] In this embodiment, a sliding rod 6 is fixed to the side of the connecting block 4 facing the side plate 2 by a fixing block. A sliding groove 5 adapted to the fixing block and the sliding rod 6 is opened on the side plate 2. The same connecting rod 17 is fixed between the two mounting plates 13. Several brackets 18 are fixed at equal intervals on the lower part of the outer wall of the side plate 2, and the connecting rod 17 rests on the bracket 18. The mounting plate 13 is provided with brackets 18, connecting rod 17 and sliding groove 5. The mounting plate 13 is rotated counterclockwise and lifted up, so that the connecting rod 17 is disengaged from the bracket 18. The sliding rod 6 rotates and slides in the sliding groove 5. When it moves to the bracket 18 to be rested on, the connecting rod 17 is attached to the outer wall of the side plate 2 and then moves down into the corresponding bracket 18, so as to realize the height adjustment of the entire adjustment mechanism and the support frame 3, which is convenient for adjusting the appropriate height for welding operations.

[0028] In this embodiment, the bracket 18 has a Z-shaped structure.

[0029] In this embodiment, the slide 5 is a T-shaped structure.

[0030] Working Principle: The system comprises a base plate 1, side plates 2, support frames 3, connecting blocks 4, an adjusting mechanism, an extrusion plate 11, and an S-bend rod 12. The adjusting mechanism includes a lead screw nut 9, a guide block 10, a guide rod 15, a bidirectional lead screw 8, and a turntable 16. During operation, the cylindrical heat exchanger is placed on two support frames 3 for support. Rotating the turntable 16 causes the bidirectional lead screw 8 to rotate. The two lead screw nuts 9 on the bidirectional lead screw 8 move closer together under the action of the guide rod 15. The S-bend rod 12 and the extrusion plate 11 on the lead screw nuts 9 move, and the two extrusion plates 11 clamp and press against both ends of the heat exchanger, keeping it fixed. This facilitates welding of the inlet or outlet water channels on the heat exchanger. Next, by adjusting the adjustment mechanism, the extrusion plate 11 is no longer clamped on the heat exchanger. The heat exchanger is rotated to the desired surface. The adjustment mechanism is then operated again to clamp the heat exchanger with the two extrusion plates 11 for welding the inlet or outlet water channels. This facilitates multi-channel welding. The system is equipped with a bracket 18, a support rod 17, and a slide 5. By rotating the mounting plate 13 counterclockwise and lifting it, the support rod 17 is disengaged from the bracket 18. The slide rod 6 rotates and slides within the slide 5. When it moves to the bracket 18 to be supported, the support rod 17 adheres to the outer wall of the side plate 2 and then moves down into the corresponding bracket 18. This allows for height adjustment of the entire adjustment mechanism and support frame 3, facilitating welding operations at a suitable height.

[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A welding positioning device for a multi-channel heat exchanger, comprising a base plate (1), characterized in that, The top of the base plate (1) is fixed with a side plate (2). Two symmetrical support frames (3) are provided above the base plate (1). A connecting block (4) is fixed on the side of the support frame (3) near the side plate (2). A connecting rod (7) is fixed at the bottom of the connecting block (4). Mounting plates (13) are fixed on the sides of the two connecting rods (7) that are close to each other. The support frame (3) is adjustablely mounted on the side plate (2). An extrusion plate (11) is concentrically arranged on the support frame (3). An S-bend rod (12) is concentrically fixed on the extrusion plate (11). An adjustment mechanism is installed between the two mounting plates (13) to enable the two mounting plates (13) to move relative to each other.

2. The welding positioning device for a multi-channel heat exchanger according to claim 1, characterized in that, The adjustment mechanism includes a bidirectional lead screw (8) rotatably disposed between two mounting plates (13), and two lead screw nuts (9) are installed on the bidirectional lead screw (8). The S-bend rod (12) is fixedly connected to the lead screw nuts (9) in a one-to-one correspondence.

3. The welding positioning device for a multi-channel heat exchanger according to claim 2, characterized in that, Guide blocks (10) are fixed at both ends of the outer wall of the lead screw nut (9), and two guide rods (15) are fixed between the two mounting plates (13). The guide rods (15) pass through the corresponding guide blocks (10).

4. The welding positioning device for a multi-channel heat exchanger according to claim 2, characterized in that, One of the mounting plates (13) has a turntable (16) fixed coaxially with the bidirectional lead screw (8) mounted on its outer wall.

5. The welding positioning device for a multi-channel heat exchanger according to claim 1, characterized in that, The connecting block (4) is fixed with a sliding rod (6) on the side facing the side plate (2) by a fixing block. The side plate (2) is provided with a sliding groove (5) that is compatible with the fixing block and the sliding rod (6). The same support rod (17) is fixed between the two mounting plates (13). Several brackets (18) are fixed at equal intervals on the lower part of the outer wall of the side plate (2), and the support rod (17) rests on the brackets (18).

6. The welding positioning device for a multi-channel heat exchanger according to claim 5, characterized in that, The bracket (18) has a Z-shaped structure.

7. The welding positioning device for a multi-channel heat exchanger according to claim 6, characterized in that, The groove (5) has a T-shaped structure.

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