Separating mechanism of square tube chamfering punch

Abstract

The application discloses a separating mechanism of a square tube chamfering punch, which comprises a base, a chamfering station of a square tube arranged on the base, a first oil cylinder, a second oil cylinder and a third oil cylinder, the first oil cylinder and the second oil cylinder are symmetrically arranged at two ends of the chamfering station, the output ends of the first oil cylinder and the second oil cylinder are respectively provided with chamfering punches, the output pressure of the first oil cylinder is greater than that of the second oil cylinder, one side of the chamfering station is provided with a side leaning surface, the third oil cylinder is arranged at the other side of the chamfering station, and the output end of the third oil cylinder is provided with a side pressing surface; the side pressing surface cooperates with the side leaning surface to clamp and fix the square tube; the application realizes the quick separation of the chamfering punch and the square tube, and further improves the chamfering efficiency of the square tube.

Description

Technical Field

[0001] This invention relates to the field of vehicle lifting machine manufacturing technology, and more specifically, to a separation mechanism for a square tube chamfering punch. Background Technology

[0002] Vehicle lifting machines are used in vehicle repair. These machines contain numerous outer square tubes. The chamfers at both ends of the inner holes of these tubes prevent sharp edges from scratching the coating on the surface, improving aesthetics. However, existing chamfering fixtures have the following drawbacks: 1. Handheld processing is unstable and inefficient. Mechanical processing can only perform single-sided processing, resulting in low efficiency. Furthermore, the limiting and fixing of the outer square tubes is poor. When the punch is aligned with the end face of the inner hole of the outer square tube for chamfering, any deviation due to the pressure from both sides affects the chamfering accuracy and may even render the outer square tube unusable. 2. The chamfering stroke requires high precision. A short punch stroke leads to incomplete chamfering, while a long stroke damages the inner hole of the outer square tube. Additionally, existing chamfering devices are only suitable for outer square tubes of a single size, limiting their application. If the size of the outer square tube changes, proper chamfering becomes impossible.

[0003] The chamfering fixture for the outer square tube of a vehicle lift, as described in patent number 202020529848.4, includes a base and support columns on both sides of the base. A fixed punch is horizontally fixedly connected to one support column, and a hydraulic cylinder is horizontally fixedly connected to the other support column. A movable punch is fixedly connected to one end of the hydraulic cylinder. The fixed punch and the movable punch are horizontally corresponding. An operating platform is located between the two support columns. The operating platform has two clamp assemblies that limit the outer square tube, and the two clamp assemblies are respectively located at both ends of the outer square tube. The lower end face of the operating platform is movably connected to the upper end face of the base via a slide rail. The operating platform has a horizontally arranged first sensor and a second sensor, which are aligned with the movable punch. The advantage of the aforementioned patent lies in its ability to chamfer according to the length of the square tube, which greatly improves the accuracy of the chamfering. However, after the square tube is chamfered, the operators find that the fixed punch and the movable punch are tightly stuck inside the square tube. At this time, it is difficult for the operators to remove the fixed punch or the movable punch from the end of the square tube. When removing the fixed punch or the movable punch from the end of the square tube, the operators often need to slowly shake the square tube to slowly slide the movable punch and the fixed punch out from the end of the square tube. This method reduces the chamfering efficiency of the square tube, and if the operators are not careful, they can easily damage the chamfered position of the square tube, requiring further grinding, which reduces the company's production capacity.

[0004] invention

[0005] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a separation mechanism for a square tube chamfering punch.

[0006] To achieve the above objectives, the present invention provides a separation mechanism for a square tube chamfering punch. The mechanism includes a base, and its innovation lies in the following: the base is equipped with a square tube chamfering station. The mechanism also includes a first hydraulic cylinder, a second hydraulic cylinder, and a third hydraulic cylinder. The first and second hydraulic cylinders are symmetrically arranged at both ends of the chamfering station. Both the first and second hydraulic cylinders have chamfering punches at their output ends. The output pressure of the first hydraulic cylinder is greater than that of the second hydraulic cylinder. A side abutment is provided on one side of the chamfering station, and the third hydraulic cylinder is located on the other side of the chamfering station. The output end of the third hydraulic cylinder has a side pressure surface. The side pressure surface, in conjunction with the side abutment, clamps and fixes the square tube.

[0007] Furthermore, the output pressure of the first hydraulic cylinder is 40t, and the output pressure of the second hydraulic cylinder is 30t.

[0008] Furthermore, the bottom of the aforementioned chamfering station is provided with a V-groove, the included angle of which is 90°, so that one of the right angles of the square tube is embedded inside the V-groove.

[0009] Furthermore, the two inclined sides of the V-groove are respectively provided with a left inclined surface and a right inclined surface, the side contact surface and the left inclined surface are set on the same side and parallel to the right inclined surface, and the side pressure surface and the right inclined surface are set on the same side and parallel to the left inclined surface.

[0010] Furthermore, anti-slip pads are provided on both the side contact surface and the side pressure surface.

[0011] The technical effects and advantages of this invention are as follows: After the chamfering of the square tube is completed, the third oil cylinder pushes the side pressure surface to move to the side surface, thereby clamping and fixing the square tube. Meanwhile, the first oil cylinder and the second oil cylinder drive the two chamfering punches away from the ends of the square tube, thereby achieving rapid separation of the chamfering punches and the square tube, and thus improving the chamfering efficiency of the square tube. Attached Figure Description

[0012] Figure 1 This is a top view of the present invention.

[0013] Figure 2 This is a cross-sectional view of the end face of the V-groove of the present invention. Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] like Figures 1 to 2 In one specific embodiment of the present invention, the structure includes a base 1, on which a chamfering station 11 for a square tube is provided. The structure also includes a first hydraulic cylinder 12, a second hydraulic cylinder 13, and a third hydraulic cylinder 14. The first hydraulic cylinder 12 and the second hydraulic cylinder 13 are symmetrically arranged at both ends of the chamfering station 11. The output ends of the first hydraulic cylinder 12 and the second hydraulic cylinder 13 are each provided with a chamfering punch 15. The output pressure of the first hydraulic cylinder 12 is greater than the output pressure of the second hydraulic cylinder 13. A side abutment surface 16 is provided on one side of the chamfering station 11. The third hydraulic cylinder 14 is arranged on the other side of the chamfering station 11. The output end of the third hydraulic cylinder 14 is provided with a side pressure surface 17. The side pressure surface 17 cooperates with the side abutment surface 16 to clamp and fix the square tube.

[0016] In this invention, the square tube chamfering process is as follows: The square tube is placed on the chamfering station 11. First, the chamfering punch 15 on the first cylinder 12 presses against one end of the square tube. Then, the chamfering punch 15 on the second cylinder 13 presses against the other end of the square tube. Since the output pressure of the first cylinder 12 is greater than the output pressure of the second cylinder 13, it is ensured that the chamfering punch 15 on the second cylinder 13 can press the square tube against the chamfering punch 15 on the first cylinder 12 for chamfering. After the chamfering of the square tube is completed, the third cylinder 14 pushes the side pressure surface 17 to move towards the side contact surface 16, thereby clamping and fixing the square tube. However, the first cylinder 12 and the second cylinder 13 drive the two chamfering punches 15 away from the end of the square tube, realizing the rapid separation of the chamfering punches 15 and the square tube, thereby improving the chamfering efficiency of the square tube.

[0017] In this invention, as a preferred embodiment, the output pressure of the first hydraulic cylinder 12 is 40t, and the output pressure of the second hydraulic cylinder 13 is 30t.

[0018] In this invention, as a preferred embodiment, the bottom of the chamfering station 11 is provided with a V-groove 2, the included angle of the V-groove 2 is 90°, so that one right angle of the square tube is embedded in the interior of the V-groove 2.

[0019] In this invention, the V-groove 2 ensures that the square tube is placed stably on the chamfering station 11, thereby ensuring that the square tube remains in a stable position during chamfering.

[0020] In this invention, as a preferred embodiment, the two inclined sides of the V-groove 2 are respectively provided with a left inclined surface 21 and a right inclined surface 22, the side contact surface 16 is provided on the same side as the left inclined surface 21 and parallel to the right inclined surface 22, and the side pressure surface 17 is provided on the same side as the right inclined surface 22 and parallel to the left inclined surface 21.

[0021] In this invention, the side contact surface 16 and the side pressing surface 17 press the two sides of the square tube onto the right inclined surface 22 and the left inclined surface 21 respectively, so that the square tube can be pressed and fixed inside the V-groove 2.

[0022] In this invention, as a preferred embodiment, both the side contact surface 16 and the side pressure surface 17 are provided with anti-slip pads.

[0023] In this invention, the anti-slip pad increases the friction between the side contact surface 16, the side pressure surface 17, and the square tube, thereby ensuring the firmness of the square tube.

[0024] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0025] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0026] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A square tube chamfering punch separating mechanism, which structure comprises a base (1), and the base (1) is provided with a square tube chamfering station (11), characterized in that: The structure further comprises a first oil cylinder (12), a second oil cylinder (13) and a third oil cylinder (14), the first oil cylinder (12) and the second oil cylinder (13) are symmetrically arranged at two ends of the chamfering station (11), the output end of the first oil cylinder (12) and the output end of the second oil cylinder (13) are respectively provided with a chamfering punch (15), the output pressure of the first oil cylinder (12) is greater than the output pressure of the second oil cylinder (13), one side of the chamfering station (11) is provided with a side leaning surface (16), the third oil cylinder (14) is arranged at the other side of the chamfering station (11), the output end of the third oil cylinder (14) is provided with a side pressing surface (17), the side pressing surface (17) cooperates with the side leaning surface (16) to clamp and fix the square tube; The bottom of the chamfering station (11) is provided with a V-shaped groove (2), the included angle of the V-shaped groove (2) is 90°, so that one of the right angles of the square tube is embedded in the inside of the V-shaped groove (2); The two inclined edges of the V-shaped groove (2) are respectively provided with a left inclined surface (21) and a right inclined surface (22), the side leaning surface (16) and the left inclined surface (21) are arranged on the same side and are parallel to the right inclined surface (22), and the side pressing surface (17) and the right inclined surface (22) are arranged on the same side and are parallel to the left inclined surface (21).

2. A knockout mechanism for a square tube chamfering punch according to claim 1, characterized in that: The output pressure of the first oil cylinder (12) is 40t, and the output pressure of the second oil cylinder (13) is 30t.

3. A knockout mechanism for a square tube chamfering punch according to claim 1, characterized in that: The side leaning surface (16) and the side pressing surface (17) are respectively provided with anti-skid pads.

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