Metal cutting machine tool with tool bit convenient to replace

Abstract

The utility model relates to the technical field of metal cutting machine tools, in particular to a metal cutting machine tool with a tool bit convenient to replace, which comprises a machine tool main body, a U-shaped rotating plate is arranged on the machine tool main body in a matched mode, an installation disc is fixedly installed on the U-shaped rotating plate, and the cutting tool bit with a fixing hole is sleeved on the installation disc in a sliding mode. According to the technical scheme, the fixing rod enters the fixing hole to fix the cutting tool bit, and compared with the prior art that a miniature air cylinder drives and fixes the cutting tool bit, the cutting tool bit is prone to being affected by vibration and damaged, the limiting rod enters the limiting hole, and therefore the fixing rod is fixed and limited; according to the cutting tool bit, the fixing rod is arranged in the fixing hole, so that the situation that the fixing rod is separated from the fixing hole due to the vibration influence generated during operation of the cutting tool bit is avoided, the stability of the cutting tool bit is improved, the cutting tool bit can be disassembled and assembled by pulling the first lifting plate and the second lifting plate, and the convenience during replacement of the cutting tool bit is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting machine tools, in particular to a metal cutting machine tool which is convenient for replacing a cutter head. Background Art

[0002] The metal cutting process is an interaction process between the workpiece and the tool. The tool removes excess metal from the workpiece to be processed and, under the premise of controlling productivity and cost, makes the workpiece obtain geometric accuracy, dimensional accuracy and surface quality that meet the design and process requirements.

[0003] The prior art mostly adopts a metal cutting machine tool with easy replacement of cutter heads proposed by Chinese application number CN202222599259.5, which belongs to the technical field of cutting machine tools, and includes a machine tool body and a workpiece processing table. When the utility model is actually used, the required cutting head can be switched according to different processing requirements. It is easy to use and the cutting head is easy to replace.

[0004] The above technical solution is to drive the limit column into the groove on the cutting head through a micro cylinder to complete the fixing operation of the cutting head. However, the cutting head will generate vibration when working, which will affect the micro cylinder. The micro cylinder will cause greater wear if it is operated in a vibrating environment for a long time, thereby reducing the service life of the micro cylinder. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the micro cylinder operates in a vibration environment for a long time and has a low service life, and proposes a metal cutting machine tool which is convenient for replacing the cutter head.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A metal cutting machine tool for conveniently replacing a cutter head comprises a machine tool body, the machine tool body is matched with a U-shaped rotating plate, a mounting plate is fixedly mounted on the U-shaped rotating plate, a cutting cutter head with a fixing hole is slidably mounted on the mounting plate, and a fixing rod corresponding to the fixing hole is slidably mounted on the U-shaped rotating plate;

[0008] A first lifting plate is fixedly connected to the fixing rod, a first spring is welded between the first lifting plate and the fixing rod, and a resisting plate that resists the cutting bit is fixedly sleeved on the fixing rod;

[0009] The U-shaped rotating plate is provided with a fixing mechanism for fixing and limiting the fixing rod.

[0010] Preferably, a square hole for slidingly fitting the cutting bit is formed on the U-shaped rotating plate, and a circular hole for slidingly fitting the fixing rod is formed on the U-shaped rotating plate.

[0011] Preferably, the first spring is horizontally movably sleeved on the fixing rod, and the abutment plate is arranged on the inner side of the U-shaped rotating plate.

[0012] Preferably, the fixing mechanism comprises a limiting rod slidably mounted on the mounting plate and penetrating the fixing rod, a second lifting plate is fixedly connected to the limiting rod, and a second spring is welded between the second lifting plate and the limiting rod.

[0013] Preferably, a movable through hole for the sliding sleeve limit rod is formed on the mounting plate, and a limit hole for the sliding sleeve limit rod is formed on the fixing rod.

[0014] Preferably, the second spring is longitudinally movably sleeved on the limiting rod.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] In the utility model, the cutting head is fixed by a fixing rod entering the fixing hole. Compared with the prior art in which the micro-cylinder driven fixing is easily damaged by vibration, the technical solution of the present invention is to enter the limiting hole by a limiting rod to fix the fixing rod, thereby preventing the fixing rod from being separated from the fixing hole due to the vibration generated when the cutting head is working, which helps to improve the stability of the cutting head. The cutting head can be disassembled and assembled by pulling the first lifting plate and the second lifting plate, which helps to ensure the convenience of replacing the cutting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a metal cutting machine tool that is easy to replace a cutter head, as proposed by the utility model;

[0018] Figure 2 A schematic diagram of a part of the structure of a metal cutting machine tool for easy replacement of a cutter head proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the fixing mechanism structure of a metal cutting machine tool that is convenient for replacing a cutter head, as proposed by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the structure of a cutting head for a metal cutting machine tool which is convenient for replacing the cutting head.

[0021] In the figure: 1. machine tool body; 2. U-shaped turntable; 3. mounting plate; 4. cutting tool head; 5. fixing rod; 6. first lifting plate; 7. first spring; 8. resistance plate; 9. limiting rod; 10. second lifting plate; 11. second spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4 A metal cutting machine tool for convenient replacement of a cutter head comprises a machine tool body 1, a U-shaped rotating plate 2 is matchedly arranged on the machine tool body 1, a mounting plate 3 is fixedly mounted on the U-shaped rotating plate 2, a cutting head 4 with a fixing hole is slidably mounted on the mounting plate 3, a square hole for slidingly mounting the cutting head 4 is opened on the U-shaped rotating plate 2, and the cutting head 4 can be guided and limited through the square hole, which helps to ensure the stability of the cutting head 4;

[0024] A fixing rod 5 corresponding to the fixing hole is slidably mounted on the U-shaped rotating plate 2. A circular hole for slidingly mounting the fixing rod 5 is provided on the U-shaped rotating plate 2. The fixing rod 5 can be guided and limited through the circular hole and the fixing hole, which helps to ensure the stability of the fixing rod 5 during movement.

[0025] A first lifting plate 6 is fixedly connected to the fixing rod 5, a first spring 7 is welded between the first lifting plate 6 and the fixing rod 5, the first spring 7 is horizontally movably sleeved on the fixing rod 5, and the cutting head 4 can be fixed and limited by inserting the fixing rod 5 into the fixing hole;

[0026] The fixing rod 5 is fixedly sleeved with a contact plate 8 that is movable against the cutting head 4. The contact plate 8 is arranged on the inner side of the U-shaped rotating plate 2. The contact plate 8 is used to contact and limit the cutting head 4, thereby further ensuring the stability of the cutting head 4.

[0027] The U-shaped rotating plate 2 is provided with a fixing mechanism for fixing and limiting the fixing rod 5. The fixing mechanism can be used to fix and limit the fixing rod 5, thereby ensuring the stability of the fixing rod 5 and preventing the fixing rod 5 from being separated from the fixing hole due to vibration;

[0028] It is further explained that: the fixing mechanism includes a limiting rod 9 which is slidably mounted on the mounting plate 3 and passes through the fixing rod 5, a movable through hole for slidingly mounting the limiting rod 9 is provided on the mounting plate 3, a limiting hole for slidingly mounting the limiting rod 9 is provided on the fixing rod 5, a second lifting plate 10 is fixedly connected to the limiting rod 9, a second spring 11 is welded between the second lifting plate 10 and the limiting rod 9, and the second spring 11 is longitudinally movably mounted on the limiting rod 9;

[0029] Through the elastic action of the first spring 7 and the second spring 11, when the operator disassembles and assembles the cutting head 4, he only needs to operate the first lifting plate 6 and the second lifting plate 10 to complete the disassembly and assembly of the cutting head 4, which helps to improve the convenience of replacing the cutting head 4;

[0030] It should be noted that the specific models and specifications of the first spring 7 and the second spring 11 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0031] The functional principle of the utility model can be explained through the following operation modes:

[0032] When the cutting head 4 needs to be replaced, the operator first pulls the second lifting plate 10 on one side, so that the second spring 11 is stretched, and the second lifting plate 10 drives the limiting rod 9 away from the limiting hole, and then pulls the first lifting plate 6, stretches the first spring 7, the fixing rod 5 is away from the fixing hole, and the contact plate 8 is away from the cutting head 4. Finally, the above operation is repeated for the second lifting plate 10 and the first lifting plate 6 on the other side, so that the operator can pull out the cutting head 4 from the square hole on the U-shaped rotating plate 2 for replacement;

[0033] Put the new cutting bit 4 through the square hole and pass through the U-shaped rotating plate 2, loosen the first lifting plate 6, and under the elastic force of the first spring 7, the first lifting plate 6 drives the fixing rod 5 into the fixing hole, and the contact plate 8 and the cutting bit 4 are movably opposed;

[0034] The second lifting plate 10 is released, and under the elastic force of the second spring 11, the second lifting plate 10 drives the limiting rod 9 to enter the limiting hole.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal cutting machine tool for conveniently replacing a tool head, comprising a machine tool body (1), the machine tool body (1) being equipped with a U-shaped rotating plate (2), the U-shaped rotating plate (2) being fixedly mounted with a mounting plate (3), characterized in that: A cutting head (4) with a fixing hole is slidably mounted on the mounting plate (3), and a fixing rod (5) corresponding to the fixing hole is slidably mounted on the U-shaped rotating plate (2); A first lifting plate (6) is fixedly connected to the fixing rod (5), a first spring (7) is welded between the first lifting plate (6) and the fixing rod (5), and a contact plate (8) is fixedly sleeved on the fixing rod (5) and is movably opposed to the cutting bit (4); The U-shaped rotating plate (2) is provided with a fixing mechanism for fixing and limiting the fixing rod (5).

2. A metal cutting machine tool for easy replacement of cutter heads according to claim 1, characterized in that: The U-shaped rotating plate (2) is provided with a square hole for slidingly fitting the cutting bit (4), and the U-shaped rotating plate (2) is provided with a circular hole for slidingly fitting the fixing rod (5).

3. A metal cutting machine tool for easy replacement of cutter heads according to claim 1, characterized in that: The first spring (7) is horizontally movably sleeved on the fixing rod (5), and the contact plate (8) is arranged on the inner side of the U-shaped rotating plate (2).

4. A metal cutting machine tool for easy replacement of cutter heads according to claim 1, characterized in that: The fixing mechanism comprises a limiting rod (9) which is slidably mounted on the mounting plate (3) and passes through the fixing rod (5); a second lifting plate (10) is fixedly connected to the limiting rod (9); and a second spring (11) is welded between the second lifting plate (10) and the limiting rod (9).

5. A metal cutting machine tool for easy replacement of cutter heads according to claim 4, characterized in that: The mounting plate (3) is provided with a movable through hole for slidingly fitting the limiting rod (9), and the fixing rod (5) is provided with a limiting hole for slidingly fitting the limiting rod (9).

6. A metal cutting machine tool for easy replacement of cutter heads according to claim 4, characterized in that: The second spring (11) is longitudinally movably sleeved on the limiting rod (9).

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