Metal square tube bending tool

Abstract

The utility model provides a metal square tube bending tool which comprises two clamping dies forming an interlayer, the two clamping dies are fixed on the same base, a middle die and a check block are installed in the interlayer of the clamping dies, the middle die and the check block form a rectangular space for clamping a square tube between the two clamping dies, a pressing die is rotatably installed between the two clamping dies, and the pressing die is fixed on the base. According to the square tube bending die, when the square tube is bent, deformation of a tube opening of the square tube can be prevented, the high precision of the square tube is ensured, the bending forming process of the square tube is changed through one die core, and the square tube bending die is simple in structure, convenient to operate and high in practicability. And the secondary machining time of the square tube can be effectively saved, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal pipe bending tool, especially to a metal square pipe bending tool. BACKGROUND

[0002] Electric automobile battery pack needs heat dissipation system to cool generally, and the liquid cooling plate is a key part in the water cooling heat dissipation system, and the cold plate is divided into stamping type liquid cooling plate, harmonica tube type liquid cooling plate, extruded plate, serpentine tube and flat tube liquid cooling plate according to product structure, and the square pipe that will be bent is involved in the pipeline inside the cold plate, and the square pipe that the market generally sells is straight square pipe, in actual use, the square pipe needs to be bent and used, and different scene use demands of square pipe are satisfied, the square pipe is bent and formed generally using three-dimensional pipe bending machine or square pipe bending forming die straight square pipe, and the three-dimensional pipe bending machine equipment has high investment cost, occupies large space, needs to develop matched die, and the technical development threshold is high, the square pipe bending forming die has lower technical threshold, but the square pipe is prone to excessive deformation, the deformation of the assembly position of the square pipe mouth, and usually one side of the pipe mouth of the square pipe will be bent inward, and the deformed square pipe needs to be shaped by a shaping device, thereby increasing the processing station, increasing the production cost and reducing the production efficiency. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem that the pipe mouth of the square pipe is deformed in the square pipe bending process.

[0004] Based on the technical problems in the background art, the utility model provides a metal square pipe bending tool, which comprises two clamping dies forming a clamping layer, the two clamping dies are fixed on the same base, a middle die and a stopper are arranged in the clamping layer of the clamping die, the middle die and the stopper form a rectangular space for clamping the square pipe between the two clamping dies, a pressing die is rotatably arranged between the two clamping dies, one side of the pressing die facing the middle die is connected with a die core that can be inserted into the square pipe, and the pressing die can press the square pipe to adhere to the middle die for bending.

[0005] Preferably, one side of the middle die facing the pressing die is provided with a bending angle, and the middle die is fixed between the two clamping dies by a handle screw.

[0006] Preferably, one side of the two clamping layers opposite to each other is provided with a guide rail, and the stopper is slidingly arranged on the guide rail.

[0007] Preferably, the two clamping dies are both provided with arc-shaped guide grooves, the pressing die is located in the clamping layer and one end of the pressing die is connected between the two arc-shaped guide rails through a movable pin, the pressing die can slide along the arc-shaped guide groove and rotate towards the pressing die to press the square pipe to bend along the bending angle.

[0008] Preferably, one side of the die core inserted into one end of the square pipe and facing the pressing die is arc-shaped.

[0009] Preferably, the distance between the arc-shaped guide groove and the middle die is greater than the width of the square tube.

[0010] Compared with the prior art, the metal square tube bending tool adopts the technical scheme, and the following technical effects are achieved:

[0011] The utility model discloses can be bent to square tube, prevent the pipe orifice of square tube from deforming, ensure the high accuracy of square tube, and the process of square tube bending forming is changed through a die core, can effectively save the time of secondary processing of square tube, and promote the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the square tube bending section view of the utility model;

[0013] Figure 2 It is the three-dimensional structure schematic view of the utility model.

[0014] In the drawing: 100, interlayer;1, clamp die;2, base;3, middle die;4, stop block;200, square tube;300, rectangular space;5, pressing die;6, die core;31, bending angle;32, handle screw;11, guide rail;12, arc-shaped guide groove;51, movable pin. DETAILED DESCRIPTION

[0015] In the utility model, unless another definite provision and limitation, the terms "installation", "link", "connection", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's interaction relation, unless another definite limitation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0016] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature can be directly above or diagonally above the second feature, or it can simply mean that the first feature is higher in level than the second feature. The first feature can be directly below or diagonally below the second feature, or it can simply mean that the first feature is lower in level than the second feature.

[0017] EMBODIMENT

[0018] Please refer to Figures 1-2The utility model provides a kind of metal square tube bending tool, including two interlayer 100 of forming clamp mould 1, two clamp mould 1 are fixed on same base 2, two clamp mould 1 same shape and stand installation on base 2, interlayer 100 of clamp mould 1 is equipped with base 3 and stopper 4, base 3 is below stopper 4 in interlayer 100, and base 3 and stopper 4 are used to clamp the upper and lower two surfaces of square tube 200, two clamp mould 1 are used to clamp the two side surfaces of square tube 200, base 3 and stopper 4 can form the rectangular space 300 of clamping square tube 200 in two clamp mould 1, two clamp mould 1 are rotatably installed with pressure mould 5, after being fixed, square tube 200 can be extruded and bent by rotating pressure mould 5 to press and close square tube 200 to base 3, the side of pressure mould 5 towards base 3 is connected with mould core 6 that can be inserted into the tube of square tube 200, before bending square tube 200, mould core 6 needs to be inserted into square tube 200, the length of mould core 6 cannot be too long to resist square tube 200 bending, pressure mould 5 can press and close square tube 200 to adhere to base 3 and bend, mould core 6 can always support the inside of square tube 200, and the deformation of the port of square tube 200 can be avoided.

[0019] In the detailed description, refer to Figure 1 、 Figure 2 , the side of base 3 towards pressure mould 5 is provided with bending angle 31, and the bending angle 31 is smooth radian bending angle 31, when square tube 200 is bent, the inner bending is adhered to the bending angle 31 of base 3 and bent, and base 3 is fixed between clamp mould 1 by handle screw 32.

[0020] In the detailed description, refer to Figure 1 、 Figure 2 , the opposite side of two interlayers 100 is provided with guide rail 11, and stopper 4 is slidably installed on guide rail 11, since the clamping of square tube 200 between rectangular space 300 is relatively tight, square tube 200 needs to be installed by sliding stopper 4 away from guide rail 11, and handle screw 32 is loosened, so that square tube 200 can be easily put in, and then handle screw 32 is tightened, and stopper 4 is slidably installed on guide rail 11, to realize the fixation of square tube 200.

[0021] In the detailed description, refer to Figure 1 、 Figure 2 , two clamp mould 1 are provided with arc-shaped guide groove 12, pressure mould 5 is located in interlayer 100 and is connected between two arc-shaped guide rails 11 through movable pin 51, in use, one end of pressure mould 5 away from movable pin 51 needs to extrude square tube 200, and pressure mould 5 needs to rotate relative to clamp mould 1, when pressure mould 5 is pressed and closed, pressure mould 5 can slide along arc-shaped guide groove 12 and rotate to press and close square tube 200 along bending angle 31, and square tube 200 can be adhered to base 3.

[0022] In the detailed description, refer toFigure 1 、 Figure 2 , the one end of the square tube 200 into which the mold core 6 is inserted and the one side of the square tube 200 facing the pressing mold 5 are arc-shaped, when the square tube 200 is pressed, the mold core 6 can support the square tube 200 in the square tube 200, and the bending phenomenon of the square tube 200 can be avoided, the arc-shaped design of the mold core 6 can prevent the square tube 200 from being extruded by the edges and corners of the mold core 6 when the square tube 200 is bent, and the square tube 200 is broken from the inside to the outside; further, the interval between the mold core 6 and the pressing mold 5 is equal to the thickness of the metal of the square tube 200.

[0023] In the embodiment, reference is made to Figure 1 、 Figure 2 Figure 1 Figure 2 , the distance between the arc-shaped guide groove 12 and the base 3 is greater than the width of the square tube 200, when the square tube 200 is fixed in the rectangular space 300, it is necessary to avoid shielding the arc-shaped guide groove 12, and the arc-shaped guide groove 12 also needs to be located on the same side of the square tube 200 as the pressing mold.

[0024] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A metal square tube bending tool characterized by comprising: The utility model provides a square tube bending machine, including two sandwich moulds (1) that form interlayer, two sandwich moulds (1) are fixed on same base (2), and the interlayer (100) of sandwich mould (1) is installed with middle die (3) and stopper (4), and middle die (3) and stopper (4) form the rectangular space (300) of clamping square tube (200) in two sandwich moulds (1), and rotatable installation is equipped with pressing mould (5) between two sandwich moulds (1), and the side of pressing mould (5) towards middle die (3) is connected the die core (6) that can be inserted into the square tube (200) tube, and pressing mould (5) can press together square tube (200) and is pasted to middle die (3) and is bent.

2. The metal square tube bending tooling apparatus of claim 1, wherein, The side of the middle die (3) towards the pressing mould (5) is provided with a bending angle (31), and the middle die (3) is fixed between the sandwich moulds (1) by a handle screw (32).

3. The metal square tube bending tooling of claim 2, wherein, The opposite side of the two sandwich moulds (100) is provided with a guide rail (11), and the stopper (4) is slidingly installed on the guide rail (11).

4. The metal square tube bending tooling of claim 3, wherein, Both of the sandwich moulds (1) are provided with an arc-shaped guide slot (12), and the pressing mould (5) is located in the sandwich mould (100) and connected to the two arc-shaped guide rails (11) by a movable pin (51) at one end, so that the pressing mould (5) can slide along the arc-shaped guide slot (12) and rotate towards the pressing square tube (200) to bend along the bending angle (31).

5. The metal square tube bending tooling of claim 1, wherein, The side of the die core (6) towards the pressing mould (5) is arc-shaped.

6. The metal square tube bending tooling apparatus of claim 4, wherein, The distance between the arc-shaped guide slot (12) and the middle die (3) is greater than the width of the square tube (200).

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