Pipe expanding tool

Abstract

The utility model relates to the field of assembling equipment, in particular to a pipe expanding tool which comprises a positioning seat, a containing groove matched with a pipe product to be expanded in appearance is formed in the positioning seat, and the containing groove penetrates through the positioning seat in the transverse direction. The positioning seat is fixed on the base; a pipe expander is arranged on the base on one transverse side of the accommodating groove; a limiting groove is formed in the side, away from the pipe expander, of the positioning base and communicates with the containing groove, and a limiting block is placed in the limiting groove. And at least one clamp is arranged on the positioning seat and is used for clamping a pipe product to be expanded. The containing groove of the pipe expanding tool is completely matched with the appearance of a product, the vertical clamp can completely clamp the product and cannot move in the pipe expanding process, the limiting block can be taken out, and damage to a pipe expanding machine can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of assembly equipment, specifically a tube expansion tool. Background Technology

[0002] CN219797501U discloses a plate-type electric heating element, including at least two heat exchange tubes, each heat exchange tube being fitted with a housing, and the housing having at least one U-shaped groove arranged along the axial direction of the heat exchange tube on both sides; an electric heating tube is installed in the U-shaped groove, with both ends of the electric heating tube fixed to a terminal block; the housing has fixing holes on its upper and lower sides, and bolts are passed through the fixing holes of each housing in sequence to fix the housing together.

[0003] Heat exchange tubes need to be tightly fitted to the shell by expanding the bore, thus requiring the use of tube expansion equipment. However, existing tube expansion equipment is not compatible with this type of product, and some problems may occur during use, such as heat exchange tube movement, resulting in insufficient length of heat exchange tube at one end of the shell; incompatible clamping tools, which may cause damage to the heat exchange tube or shell during the expansion process; and the tube expander not retracting in time and making hard contact with the clamping device, which may damage the tube expander. Therefore, it is necessary to develop a tube expansion fixture specifically for this type of product. Utility Model Content

[0004] In order to solve some problems existing in the prior art, this utility model provides a tube expansion tool.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tube expansion tooling, including a positioning seat, on which a receiving groove matching the shape of the tube to be expanded is provided, and the receiving groove passes through the positioning seat in the transverse direction;

[0006] The base and positioning seat are fixed on the base;

[0007] A tube expander is provided on the base on the lateral side of the receiving groove;

[0008] The positioning seat is provided with a limiting groove on the side away from the tube expander. The limiting groove is connected to the receiving groove, and a limiting block is placed in the limiting groove.

[0009] The positioning seat is equipped with at least one clamp for clamping the tube product to be expanded.

[0010] Furthermore, the clamp is a vertical clamp.

[0011] Furthermore, the number of vertical clamps is two.

[0012] Furthermore, the two vertical clamps are positioned on the same longitudinal side of the receiving slot.

[0013] Furthermore, the positioning seat has placement slots on both longitudinal sides that communicate with the receiving slot.

[0014] Furthermore, the positioning seat is provided with multiple mounting holes in the circumferential direction.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the receiving groove of the tube expansion tool is perfectly matched with the product shape, the vertical clamp can completely clamp the product and will not move during the tube expansion process, and the limiting block can be removed to avoid damage to the tube expansion machine. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the tube expansion tool provided in this embodiment of the utility model;

[0017] Figure 2 A schematic diagram showing the expansion tool provided in this embodiment of the utility model after the product to be expanded is placed inside the expansion tool;

[0018] Figure 3 A partial structural schematic diagram of the tube expansion tool provided for an embodiment of this utility model;

[0019] Figure 4 A schematic diagram of the structure of the limiting block provided in this embodiment of the utility model;

[0020] The components include: positioning seat 1, receiving groove 2, base 3, tube expander 4, limiting groove 5, limiting block 6, clamp 7, placement groove 8, mounting hole 9, and expansion rod 10. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4 As shown, this embodiment provides a tube expansion tool, which is mainly used in the product of the applicant's previous patent CN219797501U to expand copper heat exchange tubes and fit them tightly against the inner wall of the shell. The tube expansion tool includes a positioning seat 1, which is rectangular in shape and thicker than the tube to be expanded. The positioning seat 1 is provided with a receiving groove 2 that matches the shape of the tube to be expanded. The receiving groove 2 passes through the positioning seat 1 in the transverse direction.

[0023] The base 3 and the positioning seat 1 are fixed to one side of the base 3 by bolts. Figure 1 The left side of the middle;

[0024] An expander 4 is mounted on the base 3 on one side of the receiving trough 2. Figure 1On the right side of the tube expander 4, the expansion rod 10 is aligned with the heat exchange tube. The control switch of the tube expander 4 can be installed on the base 3, the table or frame of the fixed base, so as to facilitate operation by workers.

[0025] The positioning seat 1 has a limiting groove 5 on the side away from the tube expander 4, that is... Figure 2 On the left side, the limiting groove 5 is connected to the receiving groove 2. The depth and longitudinal width of the limiting groove 5 are greater than those of the receiving groove 2. A limiting block 6 is placed in the limiting groove 5. When the product to be expanded is placed in the receiving groove 2, the heat exchange tube at the end away from the tube expander 4 is limited by the limiting block 6 to prevent the heat exchange tube from moving laterally during the tube expansion stage. The color of the limiting block 6 is designed to be different from that of the positioning seat 1, which can serve as a reminder to the operator. A lifting rod is provided on the top of the limiting block 6 to facilitate the removal of the limiting block 6.

[0026] The positioning seat 1 is equipped with at least one clamp 7 for clamping the product to be expanded and preventing the product from moving vertically during the expansion process.

[0027] In another embodiment of this application, the clamp 7 is a vertical clamp, and two vertical clamps are arranged on the same longitudinal side of the receiving groove 2, that is... Figure 1 The upper side of the clamp allows for pressure to be applied from above to secure the product. There are two vertical clamps that can fully compress the product.

[0028] In another embodiment of this application, the positioning seat 1 is provided with placement slots 8 on both longitudinal sides that communicate with the receiving slot 2, for taking out the product in the receiving slot 2.

[0029] In another embodiment of this application, the positioning seat 1 is provided with a plurality of mounting holes 9 in the circumferential direction. Bolts are passed through the mounting holes 9 to fix the positioning seat 1 on the base 3.

[0030] The workflow of the tube expansion tool is as follows:

[0031] Place the product to be expanded into the receiving groove 2, place the limiting block 6 in the limiting groove 5, so that one end of the heat exchange tube abuts against the limiting block 6, clamp the product with the vertical clamp, start the tube expander, when the expanding rod 10 of the tube expander enters the heat exchange tube to a certain depth, retract the expanding rod 10, remove the limiting block 6, and put the expanding rod 10 back into the heat exchange tube to complete the expansion of the entire heat exchange tube.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tube expansion tool, characterized by: The positioning seat is provided with a containing groove matched with the shape of the product to be expanded, and the containing groove penetrates the positioning seat in the transverse direction; The base is fixed with the positioning seat; The base on the lateral side of the containing groove is provided with an expander; The positioning seat away from the expander is provided with a limiting groove, which is communicated with the containing groove, and a limiting block is placed in the limiting groove; The positioning seat is provided with at least one clamp for clamping the product to be expanded.

2. The tube expander tool of claim 1, wherein: The clamp is a vertical clamp.

3. The tube expansion tool of claim 2, wherein: The number of the vertical clamp is two.

4. The tube expansion tool of claim 3, wherein: The two vertical clamps are arranged on the same side of the containing groove in the longitudinal direction.

5. The tube expansion tool of claim 1, wherein: The positioning seat is provided with a placing groove communicated with the containing groove on both sides in the longitudinal direction.

6. The tube expansion tool of claim 1, wherein: The positioning seat is provided with a plurality of mounting holes in the circumferential direction.

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