Hydraulic oil path regulating valve of numerical control machine tool

Abstract

The utility model discloses a regulating valve for a hydraulic oil path of a numerical control machine tool, which belongs to the technical field of regulating valves and comprises a regulating valve shell used for regulating the hydraulic oil path of the numerical control machine tool and a moving plug used for regulating the hydraulic oil path of the numerical control machine tool. A first connecting plate is fixedly connected to the side edge of the moving rod, a first fixing rod is fixedly connected to the lower side of the first connecting plate, a first fixing plate is fixedly connected to the end, away from the first connecting plate, of the first fixing rod, and a first motor is installed on the upper side of the first fixing plate; according to the device, the threaded shaft is driven by the first motor to rotate, the first fixing plate and the second fixing rod are driven to move, the first fixing rod, the first connecting plate and the moving rod are driven to move, the moving plug is driven to move, and pressure adjustment of a hydraulic oil way of the numerical control machine tool is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of regulating valve technology, and in particular to a hydraulic oil circuit regulating valve for CNC machine tools. Background Technology

[0002] In CNC machine tools, hydraulic oil can supply pressure to multiple components such as chuck, turret, and tailstock, thereby controlling their movement to achieve automatic operation of the CNC machine tool. The control of hydraulic oil is achieved through valves.

[0003] In current CNC machine tool hydraulic oil circuit regulating valves, the pressure is adjusted by moving a sliding plug driven by a threaded shaft. However, the threaded shaft is usually inside the regulating valve, and it may lock up, preventing the sliding plug from moving. Furthermore, the presence of the threaded shaft inside the regulating valve makes maintenance difficult and affects work efficiency.

[0004] Therefore, in view of this situation, there is an urgent need to design and manufacture a hydraulic oil circuit regulating valve for CNC machine tools to meet the needs of actual use. Utility Model Content

[0005] The purpose of this utility model is to provide a hydraulic oil circuit regulating valve for CNC machine tools to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic oil circuit regulating valve for CNC machine tools, comprising a regulating valve housing for regulating the hydraulic oil circuit of CNC machine tools and a movable plug for regulating the hydraulic oil circuit of CNC machine tools. A movable rod fixed to the movable plug is slidably connected inside the regulating valve housing. A first connecting plate is fixedly connected to the side of the movable rod. A first fixed rod is fixedly connected to the lower side of the first connecting plate. A first fixed plate is fixedly connected to the end of the first fixed rod away from the first connecting plate. A first motor is mounted on the upper side of the first fixed plate. A threaded shaft is fixedly connected to the output end of the first motor.

[0007] Preferably, a fixing frame is screwed to the side of the threaded shaft, and a second fixing rod that is sleeved with the fixing frame is fixedly connected to the lower side of the first fixing rod.

[0008] Preferably, a sliding block is fixedly connected to the side of the second fixing rod, and the end of the sliding block away from the second fixing rod is slidably connected to the fixing frame.

[0009] Preferably, a movable plate is rotatably connected to the end of the threaded shaft away from the first motor, and the side of the movable plate is slidably connected to the side of the fixed frame.

[0010] Preferably, a second fixing plate is fixedly connected to the lower side of the fixing frame, and the side of the second fixing plate is fixedly connected to the side of the regulating valve housing.

[0011] Preferably, a scale plate is fixedly connected to the side of the second fixed plate, and an observation plate that fits against the scale plate is fixedly connected to the side of the movable plate.

[0012] Preferably, a limiting disc is sleeved on the side of the movable rod.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This CNC machine tool hydraulic oil circuit regulating valve uses a first motor to drive a threaded shaft to rotate, which in turn moves a first fixed plate and a second fixed rod. This, in turn, moves the first fixed rod, the first connecting plate, and the moving rod, ultimately moving the moving plug. This achieves hydraulic oil circuit pressure regulation for the CNC machine tool. The threaded shaft is not screwed into the regulating valve housing, preventing it from locking up. Furthermore, the threaded shaft is externally screwed into the fixed frame and exposed, facilitating maintenance and lubrication even if the shaft locks up. This simplifies maintenance and increases work efficiency.

[0015] The hydraulic oil circuit regulating valve of this CNC machine tool, when the threaded shaft drives the moving rod and the moving plug to move, the moving plate and the observation plate move synchronously. The moving distance of the moving plug can be observed through the observation plate and the scale plate, making the moving distance of the moving plug visible. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fixing frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the observation plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the regulating valve housing of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Regulating valve housing; 2. Moving rod; 3. Moving plug; 4. Limiting disc; 5. First connecting plate; 6. First fixing rod; 7. First fixing plate; 8. First motor; 9. Second fixing rod; 10. Sliding block; 11. Threaded shaft; 12. Fixing frame; 13. Moving plate; 14. Second fixing plate; 15. Scale plate; 16. Observation plate. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0024] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] To address the issue that control valves often use a threaded shaft to move a sliding plug during pressure regulation, but this threaded shaft is usually located inside the control valve and may lock up, preventing the sliding plug from moving, and also causing maintenance difficulties and reduced work efficiency due to its internal location, the following solutions are proposed: Figures 1 to 4The diagram illustrates a hydraulic oil circuit regulating valve for a CNC machine tool, comprising a regulating valve housing 1 for regulating the hydraulic oil circuit of the CNC machine tool and a movable plug 3 for regulating the hydraulic oil circuit of the CNC machine tool. A movable rod 2, fixed to the movable plug 3, is slidably connected inside the regulating valve housing 1. A first connecting plate 5 is fixedly connected to the side of the movable rod 2, and a first fixed rod 6 is fixedly connected to the lower side of the first connecting plate 5. A first fixed plate 7 is fixedly connected to the end of the first fixed rod 6 away from the first connecting plate 5. A first motor 8 is mounted on the upper side of the first fixed plate 7, and a threaded shaft 11 is fixedly connected to the output end of the first motor 8. The first fixed rod 6, the first connecting plate 5, and the movable rod 2 are movable. The moving piston 3 is moved to adjust the hydraulic oil pressure of the CNC machine tool, so that the threaded shaft 11 is not screwed to the regulating valve housing 1 and will not be locked. A fixing frame 12 is screwed to the side of the threaded shaft 11. The side of the fixing frame 12 has a sliding groove to facilitate sliding connection with the moving plate 13 and the sliding block 10. A threaded hole is opened on the upper side of the fixing frame 12 to facilitate screwing to the threaded shaft 11. A second fixing rod 9 is fixedly connected to the lower side of the first fixing rod 6 and is sleeved with the fixing frame 12. The threaded shaft 11 is screwed to the fixing frame 12 on the outside and exposed on the outside, which facilitates maintenance after the threaded shaft 11 is locked.

[0027] A sliding block 10 is fixedly connected to the side of the second fixed rod 9. The end of the sliding block 10 away from the second fixed rod 9 is slidably connected to the fixed frame 12. A movable plate 13 is rotatably connected to the end of the threaded shaft 11 away from the first motor 8. A T-shaped slider is provided on the side of the movable plate 13 to facilitate sliding connection with the fixed frame 12. The side of the movable plate 13 is slidably connected to the side of the fixed frame 12. A second fixed plate 14 is fixedly connected to the lower side of the fixed frame 12. The side of the second fixed plate 14 is fixedly connected to the side of the regulating valve housing 1. A scale plate 15 is fixedly connected to the side of the second fixed plate 14. The moving distance of the movable plug 3 can be observed through the observation plate 16 and the scale plate 15, making the moving distance of the movable plug 3 visible. An observation plate 16 that fits against the scale plate 15 is fixedly connected to the side of the movable plate 13. A limit disc 4 is sleeved on the side of the movable rod 2.

[0028] All structures and instruments are treated with heat-resistant and waterproof materials.

[0029] The first motor 8 is a conventional device. Its working principle, size, and model are irrelevant to the function of this application, so they will not be described in detail. It is controlled by a remote control switch. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0030] Working principle

[0031] In operation, the hydraulic oil regulating valve for this CNC machine tool rotates by starting the first motor 8, which drives the threaded shaft 11 to rotate. The rotation of the threaded shaft 11 moves the second fixed rod 9 and the first fixed plate 7. The movement of the first fixed plate 7 moves the first fixed rod 6, which in turn moves the first connecting plate 5 and the moving rod 2. The movement of the moving rod 2 moves the moving plug 3, thereby regulating the hydraulic oil pressure of the CNC machine tool. Simultaneously, the movement of the threaded shaft 11 moves the moving plate 13, which in turn moves the observation plate 16. The movement distance of the moving plug 3 is observed through the observation plate 16 and the scale plate 15, making the movement distance of the moving plug 3 inside the regulating valve housing 1 clearly visible from the outside.

[0032] 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.

[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic oil circuit regulating valve for a CNC machine tool, comprising a regulating valve housing (1) for regulating the hydraulic oil circuit of the CNC machine tool and a movable plug (3) for regulating the hydraulic oil circuit of the CNC machine tool, characterized in that: The regulating valve housing (1) is slidably connected to a moving rod (2) that is fixed to a moving plug (3). A first connecting plate (5) is fixedly connected to the side of the moving rod (2). A first fixing rod (6) is fixedly connected to the lower side of the first connecting plate (5). A first fixing plate (7) is fixedly connected to the end of the first fixing rod (6) away from the first connecting plate (5). A first motor (8) is installed on the upper side of the first fixing plate (7). A threaded shaft (11) is fixedly connected to the output end of the first motor (8).

2. The hydraulic oil circuit regulating valve for CNC machine tools according to claim 1, characterized in that: The threaded shaft (11) is screwed to a fixing frame (12) on its side, and the lower side of the first fixing rod (6) is fixedly connected to a second fixing rod (9) that is sleeved with the fixing frame (12).

3. The hydraulic oil circuit regulating valve for CNC machine tools according to claim 2, characterized in that: A sliding block (10) is fixedly connected to the side of the second fixed rod (9), and the end of the sliding block (10) away from the second fixed rod (9) is slidably connected to the fixed frame (12).

4. A hydraulic oil circuit regulating valve for CNC machine tools according to claim 3, characterized in that: The threaded shaft (11) is rotatably connected to a movable plate (13) at the end away from the first motor (8), and the side of the movable plate (13) is slidably connected to the side of the fixed frame (12).

5. A hydraulic oil circuit regulating valve for CNC machine tools according to claim 4, characterized in that: The lower side of the fixed frame (12) is fixedly connected to a second fixed plate (14), and the side of the second fixed plate (14) is fixedly connected to the side of the regulating valve housing (1).

6. A hydraulic oil circuit regulating valve for CNC machine tools according to claim 5, characterized in that: The second fixed plate (14) is fixedly connected to a scale plate (15) on its side, and the moving plate (13) is fixedly connected to an observation plate (16) that fits against the scale plate (15) on its side.

7. A hydraulic oil circuit regulating valve for CNC machine tools according to claim 6, characterized in that: The side of the moving rod (2) is fitted with a limiting disk (4).

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