Flat tube punching device

Abstract

The utility model discloses a flat tube punching device which comprises a workbench and a punching assembly, a positioning plate is fixed to the top of the workbench, a limiting assembly is arranged on one side of the positioning plate, and the limiting assembly comprises a first limiting plate and a second limiting plate which are used for being inserted into a flat tube. The first limiting plate and the second limiting plate are both connected to one side of the positioning plate and make contact with the inner top and the inner bottom of the flat pipe. Compared with the prior art, the first limiting plate and the second limiting plate can play a role in supporting the flat pipe after being inserted into the flat pipe, so that the first limiting plate and the second limiting plate can improve the deformation resistance of the punching position of the flat pipe in the punching process, and the punching area of the flat pipe is prevented from sinking downwards after punching.

Description

Technical Field

[0001] The utility model relates to the technical field of water tank pipe processing, in particular to a flat pipe punching device. Background Technique

[0002] The water tank pipe is mainly used for the cooling system of an automobile, connecting the water tank and the engine, and is responsible for transferring the heat generated by the engine to the water tank through the coolant. Its shape is a slender rectangular pipe. In order to facilitate fixed connection, holes are punched at the end of the water tank pipe.

[0003] Since the water tank pipe is generally made of copper or aluminum and has a thin wall and low overall strength, the machining method of cutting holes with a machine tool is adopted. Although the cutting machining method has high precision and the punching position is not easily deformed, its efficiency is relatively low compared with the punching method. When the common punching device punches the water tank pipe, the punching position is easily deformed, resulting in easy deformation of the punching surface of the flat pipe after punching, which affects the final forming quality. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a flat pipe punching device. After the first limiting plate and the second limiting plate are inserted into the flat pipe, they can play a supporting role for the flat pipe. Therefore, during the stamping process, the first limiting plate and the second limiting plate can improve the anti-deformation ability of the stamping position of the flat pipe, and avoid the punching area of the flat pipe from sinking downward after punching.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A flat pipe punching device includes a workbench and a punching assembly. A positioning plate is fixed on the top of the workbench. A limiting assembly is arranged on one side of the positioning plate. The limiting assembly includes a first limiting plate and a second limiting plate for inserting into the flat pipe. The first limiting plate and the second limiting plate are both connected to one side of the positioning plate, and the first limiting plate and the second limiting plate are in contact with the inner top and inner bottom of the flat pipe.

[0007] Furthermore, a plurality of supporting assemblies are arranged between the first limiting plate and the second limiting plate. The supporting assembly includes a clamping block and a groove body matching with the clamping block. The clamping block and the groove body are at the same height as the first limiting plate.

[0008] Furthermore, the groove body is composed of two groups of plate bodies. The two groups of plate bodies are fixed on the first limiting plate and form a receiving groove for receiving the clamping block therebetween.

[0009] Furthermore, guiding slopes are arranged at the ends of the first limiting plate and the second limiting plate inserted into the flat pipe.

[0010] Furthermore, the second limiting plate is connected to the positioning plate through an adjusting assembly.

[0011] Further, the adjusting component includes a limiting groove formed on one side of the positioning plate. A slider is slidably connected in the limiting groove. The second limiting plate is fixedly connected to the slider. One end of the positioning plate is threadedly connected with a screw rod. One end of the screw rod is located in the limiting groove and is rotatably connected to the slider.

[0012] Further, the punching component includes a linear driving device, and a punch is fixedly connected to the bottom driving end of the linear driving device.

[0013] Further, the linear driving device is a hydraulic cylinder or a pneumatic cylinder, and the linear driving device is connected to the positioning plate through a connecting frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The first limiting plate and the second limiting plate of the utility model can support the flat tube after being inserted into the flat tube. Therefore, during the stamping process, the first limiting plate and the second limiting plate can improve the anti-deformation ability of the stamping position of the flat tube, avoid the punching area of the flat tube from sinking downward after punching, and ensure the final forming quality of the flat tube.

[0016] The supporting component of the utility model is at the same height as the first limiting plate. Therefore, in cooperation with the limiting component, the anti-deformation performance of the flat tube during stamping can be further improved.

[0017] The position of the second limiting plate of the utility model can be changed. Thus, when the opening of the flat tube is deformed and cannot be normally sleeved around the limiting component, the distance between the second limiting plate and the first limiting plate can be first reduced, so that the first limiting plate and the second limiting plate can enter the flat tube through the opening of the undeformed part of the flat tube, enabling the flat tube to be sleeved around the limiting component, and then the second limiting plate is reset. Furthermore, it is ensured that during stamping, the limiting component can still provide good anti-deformation ability to the flat tube. Description of the Drawings

[0018] Figure 1 is a front view schematic diagram of a flat tube punching device of the utility model.

[0019] Figure 2 is a top view schematic diagram of a flat tube punching device of the utility model.

[0020] Figure 3 is a schematic diagram of the connection structure of the positioning plate, the supporting component, the adjusting component and the limiting component of a flat tube punching device of the utility model.

[0021] Figure 4 is a schematic diagram of the connection structure between the limiting component and the flat tube of a flat tube punching device of the utility model.

[0022] In the figure: 1, workbench; 2, limit component; 201, first limit plate; 2011, guiding slope; 202, second limit plate; 3, flat tube; 4, punching component; 401, linear driving device; 402, punch; 5, connecting frame; 6, positioning plate; 7, supporting component; 701, trough body; 702, clamping block; 8, adjusting component; 801, slider; 802, limit groove; 803, screw rod. Specific implementation manner

[0023] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0024] As Figures 1 - 3 shown, a flat tube punching device includes a workbench 1 and a punching component 4. A positioning plate 6 is fixed on the top of the workbench 1. A limit component 2 is arranged on one side of the positioning plate 6. The limit component 2 includes a first limit plate 201 and a second limit plate 202 for inserting into the flat tube 3. Both the first limit plate 201 and the second limit plate 202 are connected to one side of the positioning plate 6, and the first limit plate 201 and the second limit plate 202 are in contact with the inner top and inner bottom of the flat tube 3.

[0025] In this implementation manner, as Figure 1 and Figure 2 shown, the flat tube 3 moves horizontally on the workbench 1 until the flat tube 3 contacts the positioning plate 6. At this time, the first limit plate 201 and the second limit plate 202 will insert into the flat tube 3. And because the first limit plate 201 and the second limit plate 202 are in contact with the inner top and inner bottom of the flat tube 3, the first limit plate 201 and the second limit plate 202 can support the flat tube 3. The punching position of the punching component 4 is between the first limit plate 201 and the second limit plate 202. Therefore, during the punching process, the first limit plate 201 and the second limit plate 202 can improve the anti-deformation ability of the punching position of the flat tube 3 and avoid the punching position of the flat tube 3 from sinking downward after punching.

[0026] As Figure 4 shown, after the first limit plate 201 and the second limit plate 202 are inserted into the flat tube 3, the inner two sides of the flat tube 3 are respectively in contact with the first limit plate 201 and the second limit plate 202. The flat tube 3 can be positioned through the first limit plate 201 and the second limit plate 202, ensuring that the punching component 4 can perform punching operations on the specified position of the flat tube 3. And the position of the flat tube 3 can be restricted by the frictional force between the first limit plate 201, the second limit plate 202 and the flat tube 3 itself, so that there is no need to use an additional fixing device to fix the position of the flat tube 3.

[0027] Among them, as Figure 3As shown, a number of support components 7 are arranged between the first limiting plate 201 and the second limiting plate 202. The support component 7 includes a clamping block 702 and a groove body 701 matching the clamping block 702. The clamping block 702 and the groove body 701 are at the same height as the first limiting plate 201. The groove body 701 is composed of two groups of plate bodies. The two groups of plate bodies are fixed on the first limiting plate 201 and an accommodating groove is formed between them. The clamping block 702 can be inserted into the accommodating groove of the groove body 701. Therefore, a rectangle can be formed among the first limiting plate 201, the second limiting plate 202, the clamping block 702 and the groove body 701, and the punching position is aligned with the inside of the rectangle, so that the support component 7 cooperates with the limiting component 2 to further improve the anti-deformation performance of the flat tube 3 during stamping.

[0028] Among them, as Figure 3 shown, guiding slopes 2011 are arranged at the ends of the first limiting plate 201 and the second limiting plate 202 inserted into the flat tube 3. When the flat tube 3 is sleeved around the first limiting plate 201 and the second limiting plate 202, the guiding slopes 2011 can easily enable the first limiting plate 201 and the second limiting plate 202 to be inserted into the flat tube 3.

[0029] Among them, as Figure 2 and Figure 3 shown, the second limiting plate 202 is connected to the positioning plate 6 through an adjusting component 8. The adjusting component 8 includes a limiting groove 802 opened on one side of the positioning plate 6. A sliding block 801 is slidably connected in the limiting groove 802. The second limiting plate 202 is fixedly connected to the sliding block 801. One end of the positioning plate 6 is threadedly connected with a screw rod 803. One end of the screw rod 803 is located in the limiting groove 802 and is rotatably connected to the sliding block 801 through a bearing. One end of the screw rod 803 is fixed in the rotating circle of the bearing. The sliding block 801 is restricted by the limiting groove 802 and cannot rotate by itself. Therefore, when the screw rod 803 rotates, the sliding block 801 can only slide in the limiting groove 802, thereby changing the position of the second limiting plate 202, and further changing the distance between the second limiting plate 202 and the first limiting plate 201. Thus, when the opening of the flat tube 3 is deformed due to cutting and cannot be normally sleeved around the limiting component 2, the distance between the second limiting plate 202 and the first limiting plate 201 can be first reduced, so that the flat tube 3 can be sleeved around the limiting component 2, and then the screw rod 803 is rotated to reset the second limiting plate 202, and the opening of the flat tube 3 is preliminarily shaped by the second limiting plate 202 and the first limiting plate 201, and it is ensured that the limiting component 2 can still play a good anti-deformation ability for the flat tube 3 during stamping.

[0030] Among them, the punching assembly 4 includes a linear driving device 401. A punch 402 is fixed to the bottom driving end of the linear driving device 401. The linear driving device 401 drives the punch 402 to descend, so that the punch 402 punches the flat tube 3. The linear driving device 401 is a hydraulic cylinder or a pneumatic cylinder. The linear driving device 401 is connected to the positioning plate 6 through a connecting frame 5. The connecting frame 5 and the positioning plate 6 are fixed by bolts and can be disassembled. Therefore, by changing the fixing position of the connecting frame 5 or directly replacing the connecting frame 5, the position of the punch 402 can be changed, so that the punch 402 can punch the specified position of the flat tube 3.

[0031] The working principle is as follows. First, place the flat tube 3 on the workbench 1 and push the flat tube 3 until it contacts the positioning plate 6, and ensure that the first limiting plate 201 and the second limiting plate 202 are inserted into the flat tube 3. At this time, since the first limiting plate 201 and the second limiting plate 202 are in contact with the inner top and inner bottom of the flat tube 3, when the linear driving device 401 drives the punch 402 to descend and punch the flat tube 3, the first limiting plate 201 and the second limiting plate 202 can improve the anti-deformation ability of the punching position of the flat tube 3, and avoid the punching position of the flat tube 3 from sinking downward after punching. Moreover, two groups of support assemblies 7 are arranged between the first limiting plate 201 and the second limiting plate 202. The clamping block 702, the groove body 701, the first limiting plate 201 and the second limiting plate 202 of the support assembly 7 can form a rectangle with each other, and the punching position is aligned with the inside of the rectangle, so that the support assembly 7 cooperates with the limiting assembly 2 to further improve the anti-deformation performance of the flat tube 3 during stamping.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A flat tube punching device, comprising a workbench (1) and a punching assembly (4), characterized in that: A positioning plate (6) is fixed on the top of the workbench (1), and a limiting assembly (2) is arranged on one side of the positioning plate (6). The limiting assembly (2) comprises a first limiting plate (201) and a second limiting plate (202) for inserting into the flat tube. The first limiting plate (201) and the second limiting plate (202) are both connected to one side of the positioning plate (6), and the first limiting plate (201) and the second limiting plate (202) are in contact with the top and bottom of the flat tube.

2. A flat tube punching device according to claim 1, characterized in that: A plurality of support assemblies (7) are arranged between the first limit plate (201) and the second limit plate (202), the support assembly (7) comprising a clamping block (702) and a slot body (701) matching the clamping block (702), the clamping block (702) and the slot body (701) being of the same height as the first limit plate (201).

3. A flat tube punching device according to claim 2, characterized in that: The groove body (701) is composed of two groups of plate bodies, and the two groups of plate bodies are fixed on the first limiting plate (201) and a receiving groove for receiving the card block (702) is formed between the two groups of plate bodies.

4. A flat tube punching device according to claim 3, characterized in that: The ends of the first limiting plate (201) and the second limiting plate (202) inserted into the flat tube are both provided with guide slopes (2011).

5. A flat tube punching device according to any one of claims 1 to 4, characterized in that: The second limiting plate (202) is connected to the positioning plate (6) via an adjustment component (8).

6. A flat tube punching device according to claim 5, characterized in that: The adjustment assembly (8) comprises a limiting groove (802) formed on one side of the positioning plate (6), a slider (801) being slidably connected in the limiting groove (802), the second limiting plate (202) being fixedly connected to the slider (801), a screw rod (803) being threadedly connected to one end of the positioning plate (6), one end of the screw rod (803) being located in the limiting groove (802) and being rotatably connected to the slider (801).

7. A flat tube punching device according to claim 6, characterized in that: The punching assembly (4) comprises a linear drive device (401), and a punch (402) is fixed to the bottom drive end of the linear drive device (401).

8. A flat tube punching device according to claim 7, characterized in that: The linear drive device (401) is a hydraulic cylinder or a pneumatic cylinder, and the linear drive device (401) is connected to the positioning plate (6) via a connecting frame (5).

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