Rectangular pipe expanding machine

Abstract

The utility model discloses a rectangular pipe expanding machine, and relates to the technical field of pipeline machining, the rectangular pipe expanding machine comprises a bottom plate, a pipe expanding mechanism and a fixing mechanism are fixedly installed on the top surface of the bottom plate, the pipe expanding mechanism comprises a first supporting plate, a servo air cylinder is fixedly installed on the top surface of the first supporting plate, and a connecting plate is fixedly installed at the telescopic end of the servo air cylinder; according to the pipe expanding device, the pipe expanding mechanism is arranged, one end of a pipeline can be expanded through the pipe expanding mechanism, the fastening bolt is matched with the connecting piece and the fixing piece, a pipe expanding head can be replaced when needed, and the using effect is improved; the fixing mechanism is arranged, the adjustable baffle can be suitable for pipelines of different lengths, the upper clamping plate and the lower clamping plate are matched so that the clamping force can be more uniform, the situation of extrusion deformation is prevented, and the using effect is improved.

Description

Technical Field

[0001] This application relates to the field of pipe processing technology, and in particular to a rectangular pipe expander. Background Technology

[0002] A pipe expander is a mechanical device used for processing metal pipes, mainly for expanding the inner diameter of pipes to meet specific engineering needs.

[0003] Regarding the aforementioned technologies, the inventors believe the following problems still exist:

[0004] Firstly, when expanding pipes, different shapes of expansion heads are needed depending on the requirements. However, the installation of expansion heads on some existing expansion machines is quite troublesome, which leads to a lot of time being wasted when replacing expansion heads, thereby reducing processing efficiency.

[0005] Secondly, when expanding the pipe, it is necessary to fix the pipe. However, some fixing devices are not easy to adjust, which makes it easy for the pipe to bend when fixing a longer pipe. When fixing a shorter pipe, it is easy to make it difficult to expand the pipe. Directly clamping its outer surface can easily cause deformation due to compression, which reduces its performance.

[0006] To address the aforementioned problems, the inventors proposed a rectangular tube expander to solve them. Utility Model Content

[0007] In order to improve the problems of inconvenient replacement of the tube expander head and poor fixation in some existing devices, the purpose of this utility model is to provide a rectangular tube expander.

[0008] To solve the above problems, this utility model provides the following solution: a rectangular pipe expander, including a base plate, on the top surface of the base plate a pipe expander mechanism and a fixing mechanism are fixedly installed, the pipe expander mechanism includes a first support plate, a servo cylinder is fixedly installed on the top surface of the first support plate, a connecting plate is fixedly installed on the telescopic end of the servo cylinder, a fixing plate is fixedly installed on the side of the connecting plate facing away from the servo cylinder, and a pipe expander head is fixedly installed on one side of the fixing plate.

[0009] Preferably, the fixing mechanism includes a second support plate, a lower clamping plate is fixedly installed on the top surface of the second support plate, an upper clamping plate is rotatably installed on one side of the lower clamping plate, a groove is provided between the upper clamping plate and the lower clamping plate, a threaded rod is threadedly inserted on the side of the lower clamping plate away from the expansion head, a baffle is fixedly installed at one end of the threaded rod, and the baffle slides inside the groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting up a pipe expansion mechanism, can expand one end of the pipe. Furthermore, by cooperating with fastening bolts, connecting parts, and fixing parts, the pipe expansion head can be replaced when needed, thereby improving the performance.

[0012] 2. This utility model, by setting a fixing mechanism and using an adjustable baffle, can be applied to pipes of different lengths. The cooperation between the upper and lower clamps can make the clamping force more uniform, prevent squeezing and deformation, and improve the use effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the expansion mechanism of this utility model.

[0016] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model.

[0017] In the diagram: 1. Base plate; 2. Pipe expansion mechanism; 21. First support plate; 22. Servo cylinder; 23. Connecting plate; 24. Fixing plate; 25. Pipe expansion head; 26. Fastening bolt; 3. Fixing mechanism; 31. Second support plate; 32. Upper clamping plate; 33. Fixing buckle; 34. Handwheel; 35. Threaded rod; 36. Baffle; 37. Lower clamping plate; 38. Groove. Detailed Implementation

[0018] 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.

[0019] Example: Figure 1-3 As shown, this utility model provides a rectangular pipe expander, including a base plate 1, which is used as a support. A pipe expander 2 and a fixing mechanism 3 are fixedly installed on the top surface of the base plate 1. The pipe expander 2 can perform pipe expander operations, and the fixing mechanism 3 can fix the pipe.

[0020] The expansion mechanism 2 includes a first support plate 21, which serves as a support and also mounts the mechanism on the top surface of the base plate 1 to prevent it from falling off.

[0021] A servo cylinder 22 is fixedly installed on the top surface of the first support plate 21. The servo cylinder 22 is used as a standard part and can drive the expansion head 25 to move.

[0022] A connecting plate 23 is fixedly installed on the telescopic end of the servo cylinder 22. A fixing plate 24 is fixedly installed on the side of the connecting plate 23 facing away from the servo cylinder 22. Multiple fastening bolts 26 are inserted into the side of the connecting plate 23. The connecting plate 23 is connected to the fixing plate 24 through the fastening bolts 26. At the same time, the fastening bolts 26 can be removed when needed to replace the expansion head 25.

[0023] A tube expander head 25 is fixedly installed on one side of the fixing plate 24. As an existing technology, different models of tube expander heads 25 can be selected from the market as needed.

[0024] The fixing mechanism 3 includes a second support plate 31, which serves as a support member. A lower clamping plate 37 is fixedly installed on the top surface of the second support plate 31, so that the lower clamping plate 37 is in a fixed state.

[0025] An upper clamping plate 32 is rotatably mounted on one side of the lower clamping plate 37. The upper clamping plate 32 is rotatably mounted on one side of the lower clamping plate 37 via a hinge. The upper clamping plate 32 can be opened via the hinge, making it easier to secure the pipe. A fixing buckle 33 is provided on one side of the upper clamping plate 32 to cooperate with the lower clamping plate 37. The fixing buckle 33 is used as prior art and can fix the upper clamping plate 32 and the lower clamping plate 37.

[0026] A groove 38 is provided between the upper clamping plate 32 and the lower clamping plate 37. The groove 38 is rectangular at one end near the pipe expander head 25 and circular at the other end. The rectangular end can shape the pipe. The pipe expander head 25 is parallel to the groove 38 inside the lower clamping plate 37, so that the pipe expander head 25 and the groove 38 cooperate to expand the pipe.

[0027] A threaded rod 35 is threadedly inserted on the side of the lower clamping plate 37 away from the pipe expansion head 25. The threaded rod 35 is a standard part with a certain degree of self-locking. A handwheel 34 is fixedly installed on one end of the threaded rod 35, and a baffle 36 is fixedly installed on the other end of the threaded rod 35. The baffle 36 slides inside the groove 38. By rotating the threaded rod 35 through the handwheel 34, the position of the baffle 36 can be adjusted to adapt to pipes of different lengths.

[0028] Working principle: First, use the base plate 1 to install the device in a suitable position. Then, install different tube expanders 25 according to the tube expansion requirements. Connect the tube expander 25 to the fixing plate 24. Then, attach the fixing plate 24 to the connecting plate 23 and use multiple fastening bolts 26 to connect and fix the connecting plate 23 to the fixing plate 24.

[0029] Then, adjust the position of the baffle 36 according to the length of the pipeline, turn the handwheel 34 to drive the threaded rod 35 to rotate, and the threaded rod 35 will drive the baffle 36 to move. When the baffle 36 moves to the appropriate position, the self-locking of the threaded rod 35 will fix the baffle 36 to prevent it from moving.

[0030] Then place the pipe in the groove 38, so that the end that needs to be expanded is located in the rectangle. Then rotate the upper clamp 32 so that the upper clamp 32 fits against the lower clamp 37 and is fixed by the fixing buckle 33.

[0031] Then, the servo cylinder 22 of the pipe expanding mechanism 2 is activated, causing the servo cylinder 22 to drive the pipe expanding head 25 to move, and the pipe expanding head 25 to expand the pipe inside the groove 38.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rectangular pipe expander, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is fixedly installed with a pipe expansion mechanism (2) and a fixing mechanism (3); The tube expansion mechanism (2) includes a first support plate (21), a servo cylinder (22) is fixedly installed on the top surface of the first support plate (21), a connecting plate (23) is fixedly installed on the telescopic end of the servo cylinder (22), a fixing plate (24) is fixedly installed on the side of the connecting plate (23) facing away from the servo cylinder (22), and a tube expansion head (25) is fixedly installed on one side of the fixing plate (24).

2. A rectangular tube expander according to claim 1, characterized in that: The fixing mechanism (3) includes a second support plate (31), a lower clamping plate (37) is fixedly installed on the top surface of the second support plate (31), an upper clamping plate (32) is rotatably installed on one side of the lower clamping plate (37), a groove (38) is provided between the upper clamping plate (32) and the lower clamping plate (37), a threaded rod (35) is threadedly inserted on the side of the lower clamping plate (37) away from the expansion head (25), a baffle (36) is fixedly installed at one end of the threaded rod (35), and the baffle (36) slides inside the groove (38).

3. A rectangular tube expander according to claim 1, characterized in that: The expansion head (25) is parallel to the groove (38) inside the lower clamping plate (37).

4. A rectangular tube expander according to claim 1, characterized in that: The connecting plate (23) has multiple fastening bolts (26) inserted on its side, and the connecting plate (23) is connected to the fixing plate (24) by the fastening bolts (26).

5. A rectangular tube expander according to claim 2, characterized in that: The groove (38) is rectangular at one end near the expansion head (25) and circular at the other end.

6. A rectangular tube expander according to claim 2, characterized in that: The upper clamp (32) is rotatably mounted on one side of the lower clamp (37) via a hinge.

7. A rectangular tube expander according to claim 2, characterized in that: A handwheel (34) is fixedly installed at one end of the threaded rod (35).

8. A rectangular tube expander according to claim 2, characterized in that: The upper clamp (32) is provided with a fixing buckle (33) on one side, which is used in conjunction with the lower clamp (37).

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