Limiting mechanism of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool limiting mechanism, which relates to the technical field of numerical control machine tools and comprises a connecting block, a fixed cylinder is fixedly mounted on the lower surface of the connecting block, a movable plate is slidably connected to the inner wall of the fixed cylinder, and a plurality of groups of pressing plates are fixedly mounted on the outer surface of the movable plate. A spring is fixedly mounted on the lower surface of the moving plate, a pressure sensor is fixedly mounted at the other end of the spring, a mounting base is slidably connected to the inner wall of the fixing cylinder, and the spring, a limiting ring and the moving plate are matched, so that a pressing plate can be controlled to move by adjusting the position of the limiting ring; the compression amount of the spring can be adjusted according to different characteristics of the machining head, when the machining head collides with a workpiece, the spring is compressed, the machining head and the workpiece can be prevented from being directly damaged by hard impact, and the function that the numerical control machine tool conducts limiting adjustment on the machining head is achieved; and the processing head can be protected from being easily damaged when being subjected to hard impact.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, and particularly relates to a limit mechanism for a numerical control machine tool. Background Technique

[0002] A numerical control machine tool belongs to a kind of processing device, which can be controlled for processing through a program. After inputting the program into the controller, it can automatically position the workpiece and perform processing, effectively improving the efficiency and automation during processing.

[0003] During numerical control processing, a tool setting operation is required. After the staff inputs various coordinates into the controller, the processing head can automatically position and process. However, since there is no limit movement mechanism installed at the position of the processing head, when the input parameters are large, the processing head will directly collide with the workpiece rigidly. At this time, the hard impact between the workpieces will damage the outside of the processing head and the workpiece, affecting the normal progress of the processing work. To solve this technical problem, the utility model proposes a limit mechanism for a numerical control machine tool. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a limit mechanism for a numerical control machine tool, which can effectively solve the problems mentioned in the background technique.

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

[0006] A limit mechanism for a numerical control machine tool includes a connecting block. A fixed cylinder is fixedly installed on the lower surface of the connecting block. A moving plate is slidably connected to the inner wall of the fixed cylinder. A plurality of pressing plates are fixedly installed on the outer surface of the moving plate. A spring is fixedly installed on the lower surface of the moving plate. The other end of the spring is fixedly installed with a pressure sensor. An installation seat is slidably connected to the inner wall of the fixed cylinder. A processing head is installed inside the installation seat. A fixing plate is fixedly installed on the outer surface of the fixed cylinder. An adjusting screw is rotatably connected to the inside of the fixing plate. A limiting ring is threadedly connected to the outer surface of the adjusting screw.

[0007] Preferably, a plurality of limiting plates are fixedly installed on the inner wall of the fixed cylinder. A plurality of limiting grooves are formed inside the installation seat. The outer surface of the limiting plate is slidably connected to the inside of the limiting groove. The outer surface of the limiting plate is slidably connected to the inside of the moving plate.

[0008] Preferably, the outer surface of the pressing plate is slidably connected to the inside of the fixed cylinder. An adjusting head is fixedly installed on the outer surface of the adjusting screw.

[0009] Preferably, a plurality of mounting plates are fixedly installed on the outer surface of the fixed cylinder. A positioning rod is fixedly installed on the outer surface of the mounting plate. The outer surface of the positioning rod is slidably connected to the inside of the pressing plate, and the outer surface of the positioning rod is slidably connected to the inside of the limiting ring.

[0010] Preferably, a positioning ring is fixedly installed inside the fixed cylinder. The outer surface of the positioning ring is slidably connected to the outer surface of the mounting seat.

[0011] Preferably, the outer surface of the fixed cylinder is slidably connected to the inside of the limiting ring. The upper surface of the pressing plate is in contact with the lower surface of the limiting ring. The base of the pressure sensor is fixedly installed at one end of the mounting seat.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, through the cooperation among the spring, the limiting ring and the moving plate, by adjusting the position of the limiting ring, the movement of the pressing plate can be controlled. At this time, the pressing plate can further adjust the position of the moving plate, the compression amount of the spring can be adjusted according to different characteristics of the processing head, and the elastic force of the spring can be further adjusted. When the processing head impacts the workpiece, the spring is compressed, which can prevent the direct hard impact damage between the processing head and the workpiece, prevent the workpiece and the processing head from being damaged, realize the function of the numerical control machine tool to limit and adjust the processing head, and is beneficial to protecting the processing head from being easily damaged when being subjected to hard impact.

[0014] In the utility model, by setting components such as the adjusting screw rod and the positioning rod, by rotating the adjusting head, the rotation of the adjusting screw rod can be controlled. At this time, the adjusting screw rod can control the movement of the limiting ring, further adjust the position of the moving plate, and further adjust the compression amount of the spring. At this time, the applied limiting force can be displayed through the pressure sensor, which is convenient for quick adjustment according to the characteristics of different processing heads. The position of the limiting ring can be limited through the positioning rod, which can prevent the axial rotation of the limiting ring, further protect the adjusting screw rod, and ensure the stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a limiting mechanism of a numerical control machine tool of the utility model;

[0016] Figure 2 It is a schematic diagram of the fixed cylinder component of a limiting mechanism of a numerical control machine tool of the utility model;

[0017] Figure 3 It is a schematic diagram of the inside of the fixed cylinder of a limiting mechanism of a numerical control machine tool of the utility model;

[0018] Figure 4Schematic diagram of the moving plate component of a limit mechanism for a numerically controlled machine tool according to the present utility model;

[0019] Figure 5 Front view schematic diagram of the moving plate component of a limit mechanism for a numerically controlled machine tool according to the present utility model.

[0020] In the figure: 1, connecting block; 2, fixed cylinder; 3, moving plate; 4, pressing plate; 5, spring; 6, pressure sensor; 7, mounting seat; 8, machining head; 9, fixing plate; 10, adjusting screw; 11, limiting ring; 12, limiting plate; 13, limiting groove; 14, adjusting head; 15, mounting plate; 16, positioning rod; 17, positioning ring. Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation manners.

[0022] As Figures 1-5 shown, a limit mechanism for a numerically controlled machine tool includes a connecting block 1. A fixed cylinder 2 is fixedly installed on the lower surface of the connecting block 1. The upper part of the connecting block 1 is connected to the control component inside the numerically controlled machine tool, which can control actions such as the up and down movement and rotation of the fixed cylinder 2, facilitating the control of the machining head 8 to machine the workpiece.

[0023] A moving plate 3 is slidably connected to the inner wall of the fixed cylinder 2. A plurality of pressing plates 4 are fixedly installed on the outer surface of the moving plate 3. The outer surface of the pressing plate 4 is slidably connected to the inside of the fixed cylinder 2. Through the action of the pressing plate 4, the movement of the moving plate 3 can be limited. At this time, the moving plate 3 can move up and down inside the fixed cylinder 2, and the movement of the moving plate 3 can be controlled through the pressing plate 4.

[0024] A spring 5 is fixedly installed on the lower surface of the moving plate 3. The other end of the spring 5 is fixedly installed with a pressure sensor 6. The base of the pressure sensor 6 is fixedly installed at one end of the mounting seat 7. The mounting seat 7 is slidably connected to the inner wall of the fixed cylinder 2. The machining head 8 is installed inside the mounting seat 7. By detecting the thrust of the spring 5 received by the pressure sensor 6, it is convenient for the staff to adjust according to the data and load-bearing capacity of different machining heads 8. When the machining head 8 is in direct contact with the workpiece, the spring 5 can be compressed. At this time, the movement stroke of the machining head 8 can be limited, preventing the machining head 8 from being damaged by a large impact force when being impacted, and the stroke range of the machining head 8 can be limited.

[0025] A plurality of sets of limit plates 12 are fixedly installed on the inner wall of the fixed cylinder 2, and a plurality of sets of limit grooves 13 are provided inside the mounting seat 7. The outer surface of the limit plate 12 is slidably connected to the inside of the limit groove 13, and the outer surface of the limit plate 12 is slidably connected to the inside of the movable plate 3. Under the action of the limit plate 12 and the limit groove 13, the mounting seat 7 can move up and down inside the fixed cylinder 2, which can prevent the mounting seat 7 from rotating itself during use, thereby ensuring stability during use.

[0026] A positioning ring 17 is fixedly installed inside the fixed tube 2. The outer surface of the positioning ring 17 is slidably connected to the outer surface of the mounting seat 7. The positioning ring 17 can limit the position of the mounting seat 7 to ensure that the mounting seat 7 does not lose contact with the inside of the fixed tube 2.

[0027] A fixing plate 9 is fixedly installed on the outer surface of the fixing cylinder 2, and an adjusting screw 10 is rotatably connected inside the fixing plate 9. Two groups of adjusting screws 10 are provided outside the fixing cylinder 2 and are arranged symmetrically. An adjusting head 14 is fixedly installed on the outer surface of the adjusting screw 10. The adjusting screw 10 can be controlled to rotate through the adjusting head 14. The fixing plate 9 can provide auxiliary support for the adjusting screw 10 to ensure the stability of the adjusting screw 10 during operation.

[0028] The outer surface of the adjusting screw 10 is threadedly connected to the limit ring 11, the outer surface of the fixed cylinder 2 is slidably connected to the inside of the limit ring 11, the upper surface of the pressure plate 4 and the lower surface of the limit ring 11 are in contact with each other, and the limit ring 11 can be controlled to move outside the fixed cylinder 2 by rotating the adjusting screw 10. At this time, the limit ring 11 can push the pressure plate 4 to move, and the pressure plate 4 can drive the moving plate 3 to squeeze the spring 5. At this time, the compression amount of the spring 5 changes. The staff can adjust the compression amount of the spring 5 according to the data of different processing heads 8, which can adapt to the impact loads of different workpieces and improve the versatility of the limit use.

[0029] A plurality of mounting plates 15 are fixedly mounted on the outer surface of the fixed cylinder 2, a positioning rod 16 is fixedly mounted on the outer surface of the mounting plate 15, the outer surface of the positioning rod 16 is slidably connected to the inside of the pressure plate 4, the outer surface of the positioning rod 16 is slidably connected to the inside of the limiting ring 11, the position of the limiting ring 11 can be limited by the positioning rod 16, the axial rotation of the limiting ring 11 can be prevented, the adjusting screw 10 can be further protected, and the stability during use can be ensured.

[0030] The fixed cylinder 2 is installed inside the CNC machine tool through the connecting block 1. By controlling the rotation of the adjusting screw 10 through the adjusting head 14, the adjusting screw 10 can drive the limiting ring 11 to move outside the fixed cylinder 2 at this time. The limiting ring 11 can control the movement of the moving plate 3 inside the fixed cylinder 2 through the pressing plate 4. At this time, the moving plate 3 can adjust the compression amount of the spring 5. The staff can adjust the compression amount of the spring 5 according to the load-bearing capacity of different processing heads 8. The thrust of the spring 5 on the mounting seat 7 can be monitored through the pressure sensor 6. When the processing head 8 impacts the workpiece, the mounting seat 7 will move inside the fixed cylinder 2, which can adaptively adjust the stroke range of the processing head 8 and protect the processing head 8 and the workpiece.

[0031] 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 principle 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 limiting mechanism for a numerically controlled machine tool, comprising a connecting block (1), characterized in that: A fixed cylinder (2) is fixedly mounted on the lower surface of the connecting block (1), a movable plate (3) is slidably connected to the inner wall of the fixed cylinder (2), a plurality of pressure plates (4) are fixedly mounted on the outer surface of the movable plate (3), a spring (5) is fixedly mounted on the lower surface of the movable plate (3), a pressure sensor (6) is fixedly mounted on the other end of the spring (5), a mounting seat (7) is slidably connected to the inner wall of the fixed cylinder (2), a processing head (8) is mounted inside the mounting seat (7), a fixed plate (9) is fixedly mounted on the outer surface of the fixed cylinder (2), an adjusting screw (10) is rotatably connected inside the fixed plate (9), and a limit ring (11) is threadedly connected to the outer surface of the adjusting screw (10).

2. A CNC machine tool limiting mechanism according to claim 1, characterized in that: A plurality of groups of limit plates (12) are fixedly mounted on the inner wall of the fixed cylinder (2), a plurality of groups of limit grooves (13) are provided inside the mounting seat (7), the outer surface of the limit plate (12) is slidably connected to the inside of the limit groove (13), and the outer surface of the limit plate (12) is slidably connected to the inside of the movable plate (3).

3. The limiting mechanism of a CNC machine tool according to claim 1, characterized in that: The outer surface of the pressing plate (4) is slidably connected to the interior of the fixed cylinder (2), and an adjusting head (14) is fixedly mounted on the outer surface of the adjusting screw (10).

4. The limiting mechanism for a CNC machine tool according to claim 1, characterized in that: A plurality of mounting plates (15) are fixedly mounted on the outer surface of the fixing cylinder (2), a positioning rod (16) is fixedly mounted on the outer surface of the mounting plate (15), the outer surface of the positioning rod (16) is slidably connected to the inside of the pressure plate (4), and the outer surface of the positioning rod (16) is slidably connected to the inside of the limiting ring (11).

5. The limiting mechanism for a CNC machine tool according to claim 1, characterized in that: A positioning ring (17) is fixedly installed inside the fixing cylinder (2), and the outer surface of the positioning ring (17) is slidably connected to the outer surface of the mounting seat (7).

6. The limiting mechanism for a CNC machine tool according to claim 1, characterized in that: The outer surface of the fixing cylinder (2) is slidably connected to the inside of the limiting ring (11), the upper surface of the pressure plate (4) is in contact with the lower surface of the limiting ring (11), and the base of the pressure sensor (6) is fixedly mounted on one end of the mounting seat (7).

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