Spindle locking structure of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool spindle locking structure, and relates to the technical field of machine tools. A spindle locking structure of a numerically-controlled machine tool comprises the numerically-controlled machine tool, a clamping disc is rotatably mounted in the numerically-controlled machine tool, a machine tool spindle is fixedly connected to one side of the clamping disc, the machine tool spindle rotatably extends to the outside of the numerically-controlled machine tool, and the spindle locking structure is located on the numerically-controlled machine tool. The main shaft locking structure comprises a rotating plate, a locking arc plate, a positioning arc plate, a rotating frame, a connecting plate and a connecting frame, and through cooperation of the rotating plate, the locking arc plate, the positioning arc plate, the rotating frame, the connecting frame, the connecting plate and a hydraulic telescopic rod, the hydraulic telescopic rod extends to drive the locking arc plate and the positioning arc plate to rotate oppositely; and therefore, the locking arc plate and the positioning arc plate can be conveniently attached and locked to the machine tool spindle, the locking arc plate and the positioning arc plate can quickly lock the machine tool spindle through the anti-skid pad, and the using effect of the locking structure is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, and particularly relates to a spindle locking structure for a numerical control machine tool. Background Art

[0002] In the field of numerical control machine tool processing, the locking structure of the spindle is crucial for ensuring the machining accuracy and the stability of the machine tool operation. The Chinese utility model patent, with the authorization announcement number "CN220679388U", discloses a spindle locking structure for a numerical control machine tool. When the present utility model is in use, through the adjustment structure, under normal conditions, the first ratchet drives the spindle to rotate clockwise. When it is necessary to lock the part at different angles, by pre-rotating the spindle to the required angle and rotating the rotary valve to drive the threaded rod to rotate in the limit box, due to the limitation of the first extension rod, the threaded block can move horizontally in the limit box, so that the first clamping rod can move to the position of the second ratchet. Through the pulling force of the first spring, the first clamping rod can be pressed down to catch the ratchet teeth of the second ratchet, and the second clamping rod abuts against the ratchet teeth of the first ratchet. At this time, the spindle cannot rotate left or right, thereby achieving the locked angle of the spindle, and further achieving the purpose of multi-angle adjustment and locking of the side plate.

[0003] During the use of the above technical solution, although the tooth disc locking method can achieve locking at a fixed angle, for machining tasks that require frequent angle adjustment, its flexibility is poor, and the structure is complex and prone to problems, increasing the manufacturing cost and maintenance difficulty. Therefore, we propose a spindle locking structure for a numerical control machine tool. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art, and provide a spindle locking structure for a numerical control machine tool, which can solve the problems of the spindle locking structure of the numerical control machine tool.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A spindle locking structure for a numerical control machine tool, comprising:

[0006] A numerical control machine tool, inside which a clamping disc is rotatably installed, and one side of the clamping disc is fixedly connected to a machine tool spindle, and the machine tool spindle rotates and extends to the outside of the numerical control machine tool;

[0007] A spindle locking structure, which is located on the numerical control machine tool;

[0008] The spindle locking structure includes a rotating plate, a locking arc plate, a positioning arc plate, a rotating frame, a connecting plate and a connecting frame. The rotating plate is fixedly connected to one side of the CNC machine tool. Both the locking arc plate and the positioning arc plate are rotatably connected to the rotating plate. The connecting frame is rotatably connected to the side of the locking arc plate away from the rotating plate. The rotating frame is rotatably connected to the side of the positioning arc plate away from the rotating plate. The side of the rotating frame away from the positioning arc plate is rotatably connected to the connecting frame. The connecting plate is fixedly connected to one side of the connecting frame.

[0009] Preferably, the spindle locking structure further includes a second rotating seat, a hydraulic telescopic rod, a fixing plate and a first rotating seat. The fixing plate is fixedly connected to the side of the CNC machine tool close to the rotating plate. The first rotating seat is fixedly connected to the side of the fixing plate close to the rotating plate. The hydraulic telescopic rod is rotatably connected inside the first rotating seat. The second rotating seat is fixedly connected to one side of the connecting plate. The telescopic end of the hydraulic telescopic rod is rotatably connected inside the second rotating seat.

[0010] Preferably, a control box is fixedly installed on the side of the CNC machine tool close to the rotating plate.

[0011] Preferably, an alarm lamp is fixedly installed on the top of the CNC machine tool.

[0012] Preferably, anti-slip pads are fixedly connected inside both the locking arc plate and the positioning arc plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For the spindle locking structure of this CNC machine tool, through the cooperation of the rotating plate, the locking arc plate, the positioning arc plate, the rotating frame, the connecting frame, the connecting plate and the hydraulic telescopic rod, when the hydraulic telescopic rod extends, it can drive the locking arc plate and the positioning arc plate to rotate in opposite directions, so as to facilitate the fitting and locking of the locking arc plate and the positioning arc plate with the machine tool spindle. Thus, the locking arc plate and the positioning arc plate can quickly lock the machine tool spindle through the anti-slip pads, further improving the use effect of this locking structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the clamping disc of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the locking arc plate of the present utility model;

[0019] Figure 4 is a structural schematic diagram of the positioning arc plate of the present utility model.

[0020] Reference numerals: 1, CNC machine tool; 2, control box; 3, machine tool spindle; 4, alarm lamp; 5, clamping disc; 6, fixing plate; 7, first rotating seat; 8, hydraulic telescopic rod; 9, connecting plate; 10, second rotating seat; 11, locking arc plate; 12, rotating plate; 13, anti-slip pad; 14, positioning arc plate; 15, rotating frame; 16, connecting frame. Detailed implementation manners

[0021] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the present invention.

[0023] In the description of the present invention, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If the first and second are described only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0025] Please refer to Figures 1-4 , the present invention provides a technical solution: a locking structure for a spindle of a CNC machine tool, including:

[0026] A CNC machine tool 1, a clamping disc 5 is rotatably installed inside the CNC machine tool 1, and one side of the clamping disc 5 is fixedly connected to a machine tool spindle 3, and the machine tool spindle 3 rotates and extends to the outside of the CNC machine tool 1;

[0027] The spindle locking structure is located on the CNC machine tool 1;

[0028] The main shaft locking structure includes a rotating plate 12, a locking arc plate 11, a positioning arc plate 14, a rotating frame 15, a connecting plate 9 and a connecting frame 16. The rotating plate 12 is fixedly connected to one side of the numerical control machine tool 1. Both the locking arc plate 11 and the positioning arc plate 14 are rotatably connected to the rotating plate 12. The connecting frame 16 is rotatably connected to the side of the locking arc plate 11 away from the rotating plate 12. The rotating frame 15 is rotatably connected to the side of the positioning arc plate 14 away from the rotating plate 12. The side of the rotating frame 15 away from the positioning arc plate 14 is rotatably connected to the connecting frame 16. The connecting plate 9 is fixedly connected to one side of the connecting frame 16. Anti-slip pads 13 are fixedly connected inside both the locking arc plate 11 and the positioning arc plate 14.

[0029] The main shaft locking structure further includes a second rotating seat 10, a hydraulic telescopic rod 8, a fixing plate 6 and a first rotating seat 7. The fixing plate 6 is fixedly connected to one side of the numerical control machine tool 1 close to the rotating plate 12. The first rotating seat 7 is fixedly connected to the side of the fixing plate 6 close to the rotating plate 12. The hydraulic telescopic rod 8 is rotatably connected inside the first rotating seat 7. The second rotating seat 10 is fixedly connected to one side of the connecting plate 9. The telescopic end of the hydraulic telescopic rod 8 is rotatably connected inside the second rotating seat 10.

[0030] A control box 2 is fixedly installed on one side of the numerical control machine tool 1 close to the rotating plate 12. A control box 2 is fixedly installed on one side of the numerical control machine tool 1 close to the rotating plate 12.

[0031] Further, when using this device, by connecting to an external power source to start the hydraulic telescopic rod 8, when the hydraulic telescopic rod 8 extends, it will drive the connecting frame 16 to rotate around one side of the locking arc plate 11 through the connecting plate 9. The rotation of the connecting frame 16 will drive the rotating frame 15 to rotate in the opposite direction, thereby facilitating the driving of the locking arc plate 11 and the positioning arc plate 14 to rotate around the rotating plate 12, and further enabling the locking arc plate 11 and the positioning arc plate 14 to be fitted and locked with the machine tool spindle 3, so that the locking arc plate 11 and the positioning arc plate 14 can quickly lock the machine tool spindle 3 through the anti-slip pads 13.

[0032] Through the cooperation of the rotating plate 12, the locking arc plate 11, the positioning arc plate 14, the rotating frame 15, the connecting frame 16, the connecting plate 9 and the hydraulic telescopic rod 8, when the hydraulic telescopic rod 8 extends, it can drive the locking arc plate 11 and the positioning arc plate 14 to rotate in opposite directions, thereby facilitating the fitting and locking of the locking arc plate 11 and the positioning arc plate 14 with the machine tool spindle 3, so that the locking arc plate 11 and the positioning arc plate 14 can quickly lock the machine tool spindle 3 through the anti-slip pads 13, further improving the use effect of this locking structure.

[0033] Working principle: Start the hydraulic telescopic rod 8 by connecting an external power supply. When the hydraulic telescopic rod 8 extends, it will drive the connecting frame 16 to rotate around one side of the locking arc plate 11 through the connecting plate 9. The rotation of the connecting frame 16 will drive the rotating frame 15 to rotate in the opposite direction, so as to facilitate driving the locking arc plate 11 and the positioning arc plate 14 to rotate around the rotating plate 12, and then the locking arc plate 11 and the positioning arc plate 14 can be tightly attached to and locked with the machine tool spindle 3, so that the locking arc plate 11 and the positioning arc plate 14 can quickly lock the machine tool spindle 3 through the anti-slip pad 13.

[0034] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A spindle locking structure for a numerical control machine tool, characterized in that, Including: A numerical control machine tool (1), with a clamping disc (5) rotatably installed inside the numerical control machine tool (1). One side of the clamping disc (5) is fixedly connected to a machine tool spindle (3), and the machine tool spindle (3) rotates and extends to the outside of the numerical control machine tool (1). A spindle locking structure, which is located on the numerical control machine tool (1). The spindle locking structure includes a rotating plate (12), a locking arc plate (11), a positioning arc plate (14), a rotating frame (15), a connecting plate (9) and a connecting frame (16). The rotating plate (12) is fixedly connected to one side of the numerical control machine tool (1). Both the locking arc plate (11) and the positioning arc plate (14) are rotatably connected to the rotating plate (12). The connecting frame (16) is rotatably connected to the side of the locking arc plate (11) away from the rotating plate (12). Among them, the rotating frame (15) is rotatably connected to the side of the positioning arc plate (14) away from the rotating plate (12). The side of the rotating frame (15) away from the positioning arc plate (14) is rotatably connected to the connecting frame (16). The connecting plate (9) is fixedly connected to one side of the connecting frame (16).

2. A spindle locking structure for a numerical control machine tool according to claim 1, characterized in that: The spindle locking structure further includes a second rotating seat (10), a hydraulic telescopic rod (8), a fixing plate (6) and a first rotating seat (7). The fixing plate (6) is fixedly connected to one side of the numerical control machine tool (1) close to the rotating plate (12). The first rotating seat (7) is fixedly connected to the side of the fixing plate (6) close to the rotating plate (12). Among them, the hydraulic telescopic rod (8) is rotatably connected inside the first rotating seat (7). The second rotating seat (10) is fixedly connected to one side of the connecting plate (9). The telescopic end of the hydraulic telescopic rod (8) is rotatably connected inside the second rotating seat (10).

3. A spindle locking structure for a numerically controlled machine tool according to claim 1, characterized in that: A control box (2) is fixedly installed on one side of the numerical control machine tool (1) close to the rotating plate (12).

4. A spindle locking structure for a numerical control machine tool according to claim 1, characterized in that: An alarm lamp (4) is fixedly installed on the top of the numerical control machine tool (1).

5. A spindle locking structure for a numerical control machine tool according to claim 1, characterized in that: Anti-slip pads (13) are fixedly connected inside both the locking arc plate (11) and the positioning arc plate (14).

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