Automatic flaring working door of double-station pipe expander

Abstract

An automatic flaring working door of a double-station pipe expander comprises a flaring seat, a working door body and a working door driving mechanism. The working door driving mechanism comprises an up-down driver, a horizontal driver, a first mounting seat and a second mounting seat, the up-down driver is mounted on the first mounting seat and connected with the second mounting seat, the first mounting seat is mounted on the flaring seat, and the horizontal driver is mounted on the flaring seat. The up-down driver drives the second mounting seat and the working door to move up and down, so that the working door is aligned to or away from the upper part of a workpiece fixed on the pipe expander; the horizontal driver is installed on the working door and connected with the second installation base, and the horizontal driver horizontally moves to drive the working door to horizontally move to approach or leave a fixed supporting plate on the pipe expander, so that a workpiece arranged between the working door and the fixed supporting plate is clamped or loosened. The flaring automatic working door of the double-station pipe expander is simple in structure and small in size, so that the occupied area is reduced, and the working efficiency of the pipe expander can be improved.

Description

Technical Field

[0001] The utility model relates to an automatic expansion working door for a double-station tube expander. Background Art

[0002] The double-station tube expander is one of the important equipment in the production of heat exchangers. Because it completes the two processes of tube expansion and port expansion of the heat exchanger separately, it is very helpful to improve the production efficiency of the heat exchanger. It also makes the structural design of the tube expander relatively simple and reduces the purchase cost. Therefore, it is very popular in the market.

[0003] The double-station tube expander has two stations, one of which is used for tube expansion. After tube expansion is completed, the workpiece is transferred to the flaring station through a rotating mechanism, and then flaring is carried out. After flaring is completed, the processed workpiece is unloaded and then another workpiece to be processed is installed. Because the flaring station not only has to complete the flaring function, but also has the functions of loading and unloading materials, the efficiency of the flaring station affects the production efficiency of the entire tube expander.

[0004] The working door of the expanding station is used to clamp the workpiece of the expanding station to ensure the smooth expansion. It is generally a manual door or a double-door structure. The manual door structure is simple but slow, inefficient, and the operator has high labor intensity. The double-door structure is complex, relatively large in size, and slow in opening and closing, which affects the efficiency of the expanding station. At the same time, the frame must be designed to be relatively large to accommodate the working door, so the tube expander occupies a relatively large area. Summary of the invention

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects of the prior art and provide an automatic expansion working door for a double-station tube expander, which has a simple structure and a small size.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] An automatic expanding working door for a double-station tube expander comprises an expanding seat, a working door and a working door driving mechanism; the working door driving mechanism comprises an up and down driver, a horizontal driver, a first mounting seat and a second mounting seat, the up and down driver is mounted on the first mounting seat, which is connected to the second mounting seat, the first mounting seat is mounted on the expanding seat, the up and down driver drives the second mounting seat and the working door to move up and down so that the working door is aligned with or away from the upper part of a workpiece fixed on the tube expander; the horizontal driver is mounted on the working door, which is connected to the second mounting seat, the horizontal driver moves horizontally and drives the working door to move horizontally to approach or leave the fixed support plate on the tube expander, thereby clamping or releasing the workpiece placed between the working door and the fixed support plate.

[0008] Preferably, the up-down actuator is a first cylinder, which is mounted on a first mounting seat, and whose piston rod is connected to a second mounting seat, which is mounted on a flaring seat, and the horizontal actuator is a second cylinder, which is mounted on a working door, and whose piston rod is connected to a second mounting seat. The extension and retraction of the piston rod of the first cylinder drives the second mounting seat to move up and down, thereby driving the working door fixed to the second cylinder to move up and down; the extension and retraction of the piston rod of the second cylinder drives the working door to move horizontally and approach or leave the fixed support plate on the tube expander, thereby clamping or releasing the workpiece placed between the working door and the fixed support plate.

[0009] Preferably, the working door driving mechanism is composed of two groups, which are respectively arranged on two sides of the expansion seat and the working door, so that the working door can be driven to move more smoothly.

[0010] In order to ensure smooth up and down movement of the working door, an up and down movement guide assembly is also provided.

[0011] The up and down moving guide assembly includes a first guide shaft and a first guide sleeve. The lower end of the first guide shaft is installed on the second mounting seat, and the upper end passes through the first mounting seat. The first guide sleeve is installed on the first mounting seat and is sleeved outside the first guide shaft. In this way, when the first cylinder piston rod is extended or retracted, the second mounting seat is driven to move smoothly up and down through the guidance of the first guide shaft.

[0012] In order to ensure smooth horizontal movement of the working door, a horizontal movement guide assembly is also provided.

[0013] The horizontal movement guide assembly includes a second guide shaft and a second guide sleeve. One end of the second guide shaft is installed on the second mounting seat, and the other end passes through the working door. The second guide sleeve is installed on the working door and is sleeved outside the second guide shaft. In this way, when the second cylinder piston rod is extended or retracted, the working door is driven to move smoothly horizontally through the guide of the second guide shaft, thereby clamping or releasing the workpiece.

[0014] Compared with the prior art, the advantages of the utility model are: the working door and the expansion seat are connected through the working door driving mechanism, so that the working door can move up and down or horizontally to clamp or release the workpiece. It has a simple structure and a small size, thereby reducing the footprint and improving the working efficiency of the tube expander. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an automatic expansion working door of a double-station tube expander according to an embodiment of the utility model.

[0016] Figure 2 It is a side view of an automatic expansion working door of a double-station tube expander according to an embodiment of the utility model.

[0017] Figure 3This is a three-dimensional structural schematic diagram of an automatic expansion door of a double-station tube expander installed on the tube expander according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-3 As shown, an automatic expansion working door of a double-station tube expander includes an expansion seat 1, a working door 2 and a working door driving mechanism.

[0020] The working door driving mechanism comprises two groups, which are respectively arranged on two sides of the expansion seat 1 and connected with the working door 2, so that the working door 2 moves smoothly.

[0021] The working door driving mechanism includes: an up-down driver 301 and a horizontal driver 302. The up-down driver 301 is a first cylinder 301, which is mounted on a first mounting seat 303, and whose piston rod is connected to a second mounting seat 304. The first mounting seat 303 is mounted on the expansion seat 1. The horizontal driver 302 is a second cylinder 302, which is mounted on the working door 2, and whose piston rod is connected to the second mounting seat 304. The extension and retraction of the piston rod of the first cylinder 301 drives the second mounting seat 304 to move up and down, thereby driving the working door 2 fixed with the second cylinder 302 to move up and down; the extension and retraction of the piston rod of the second cylinder 302 drives the working door 2 to move horizontally and approach or leave the fixed support plate 4 on the tube expander, thereby clamping or releasing the workpiece placed between the working door and the fixed support plate.

[0022] In order to ensure smooth vertical or horizontal movement of the working door 2, an vertical movement guide assembly is provided between the first mounting seat 303 and the second mounting seat 304, and a horizontal movement guide assembly is provided between the working door 2 and the second mounting seat 304.

[0023] The up and down moving guide assembly includes a first guide shaft 305 and a first guide sleeve 306. The lower end of the first guide shaft 305 is installed on the second mounting seat 304, and the upper end passes through the first mounting seat 303. The first guide sleeve 306 is installed on the first mounting seat 303 and is sleeved outside the first guide shaft 305. In this way, when the piston rod of the first cylinder 301 is extended or retracted, it drives the second mounting seat 304 to move smoothly up and down through the guidance of the first guide shaft 305.

[0024] The horizontal movement guide assembly includes a second guide shaft 307 and a second guide sleeve 308. One end of the second guide shaft 307 is mounted on the second mounting seat 304, and the other end passes through the working door 2. The second guide sleeve 308 is mounted on the working door 2 and is sleeved outside the second guide shaft 307. In this way, when the piston rod of the second cylinder 302 is extended or retracted, it drives the working door 2 to move smoothly horizontally through the guide of the second guide shaft 307, thereby clamping or releasing the workpiece.

[0025] Working process: the rotating mechanism of the tube expander rotates the expanded workpiece 180 degrees from the tube expansion station to the flaring station, the flaring seat 2 descends to the set position, and drives the working door 2 to descend and stop at the set position, then the piston rod of the first cylinder 301 extends, drives the working door 2 to descend to the set position, and after stopping, the piston rod of the second cylinder 302 extends, drives the working door 2 to approach the workpiece, and clamps the workpiece from both sides of the workpiece together with the fixed support plate 4 on the tube expander; after clamping, the flaring mechanism of the tube expander starts to flare the workpiece, and after flaring is completed, the piston rod of the second cylinder 302 retreats to release the workpiece, and then, the piston rod of the first cylinder 301 retreats to clear the workpiece, so that the operator can remove the processed workpiece and then install the workpiece to be processed. The rotating mechanism then rotates the workpiece to be processed to the tube expansion station for tube expansion. After tube expansion is completed, the above action is repeated for flaring, and so on.

Claims

1. An automatic expansion door for a double-station tube expander, characterized by: It includes an expanding seat, a working door and a working door driving mechanism; the working door driving mechanism includes an up and down driver, a horizontal driver, a first mounting seat and a second mounting seat, the up and down driver is installed on the first mounting seat, which is connected to the second mounting seat, the first mounting seat is installed on the expanding seat, the up and down driver drives the second mounting seat and the working door to move up and down so that the working door is aligned with or away from the upper part of the workpiece fixed on the tube expander; the horizontal driver is installed on the working door, which is connected to the second mounting seat, the horizontal driver moves horizontally and drives the working door to move horizontally to approach or leave the fixed support plate on the tube expander, thereby clamping or releasing the workpiece placed between the working door and the fixed support plate.

2. The automatic expansion door of the double-station tube expander according to claim 1, characterized in that: The up and down driver is a first cylinder, which is mounted on a first mounting seat, a piston rod of the first cylinder is connected to a second mounting seat, and the first mounting seat is mounted on an expansion seat. The horizontal driver is a second cylinder, which is mounted on a working door, a piston rod of the second cylinder is connected to a second mounting seat, and the extension and retraction of the piston rod of the first cylinder drives the second mounting seat to move up and down, thereby driving the working door fixed to the second cylinder to move up and down; the extension and retraction of the piston rod of the second cylinder drives the working door to move horizontally and approach or leave the fixed support plate on the tube expander, thereby clamping or releasing the workpiece placed between the working door and the fixed support plate.

3. The automatic expansion door of the double-station tube expander according to claim 1, characterized in that: The working door driving mechanism consists of two groups, which are respectively arranged on two sides of the expansion seat and the working door.

4. The automatic expansion door of the double-station tube expander according to claim 1, characterized in that: An up and down moving guide assembly is provided.

5. The automatic expansion door of the double-station tube expander according to claim 4, characterized in that: The up-and-down moving guide assembly comprises a first guide shaft and a first guide sleeve. The lower end of the first guide shaft is mounted on the second mounting seat, and the upper end passes through the first mounting seat. The first guide sleeve is mounted on the first mounting seat and is sleeved outside the first guide shaft.

6. The automatic expansion door of the double-station tube expander according to claim 1, characterized in that: A horizontal movement guide assembly is also provided.

7. The automatic expansion door of the double-station tube expander according to claim 6, characterized in that: The horizontal movement guide assembly includes a second guide shaft and a second guide sleeve. One end of the second guide shaft is mounted on the second mounting seat, and the other end passes through the working door. The second guide sleeve is mounted on the working door and is sleeved outside the second guide shaft.

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