Spindle head of numerical control lathe

Abstract

The utility model relates to the technical field of spindle heads, in particular to a spindle head of a numerically controlled lathe, which comprises a base, a supporting seat is fixedly connected to the upper surface of the base, a spindle head body is movably connected to the inner side of the supporting seat, and a motor base is arranged on the surface of the base. When the driving motor runs to generate vibration, the vibration generated by high-speed rotation of the driving motor can be absorbed through the elastic property of the spring, the vibration amplitude can be reduced, secondary vibration caused by springback of the spring can be restrained through the arrangement of the damping piece, vibration energy dissipation can be achieved, and the service life of the motor is prolonged. Through the cooperation of the spring and the damping piece, the amplitude of vibration of the driving motor transmitted to the spindle head body can be reduced, resonance brought to the spindle head body can be avoided, protection of the spindle head body is facilitated, and the quality and precision of workpiece machining by the spindle head body can be guaranteed; and meanwhile, the service life of the spindle head body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of spindle head technology, specifically a CNC lathe spindle head. Background Technology

[0002] A CNC lathe is a high-precision machine tool that uses computer numerical control technology for machining. It automatically completes operations such as turning, drilling, and tapping of workpieces using pre-programmed machining programs. Compared to traditional manual lathes, CNC lathes offer higher machining accuracy, efficiency, and automation. The spindle head is the core component of the CNC lathe spindle system. Driven by a motor, it rotates the spindle at high speed, providing the necessary rotational speed for cutting and transmitting the torque output from the motor to the workpiece, ensuring effective transmission of cutting force. The precision and rigidity of the spindle head determine the overall machining capability of the machine tool.

[0003] In the prior art, the use of the spindle head relies on the motor drive to achieve high-speed rotation. Since the motor will generate vibration during operation, if this vibration is not properly mitigated, the vibration will be transmitted to the spindle head and cause resonance, which will easily cause machining errors and is not conducive to ensuring the quality and accuracy of workpiece machining. Therefore, in order to solve the above problems, a CNC lathe spindle head is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a CNC lathe spindle head to solve the problem mentioned in the background art that, due to the vibration generated by the motor during operation, if this vibration cannot be effectively mitigated, the vibration will be transmitted to the spindle head and cause resonance, which will easily lead to machining errors and is not conducive to ensuring the quality and accuracy of workpiece machining.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a CNC lathe spindle head, including a machine base, a support base fixedly connected to the upper surface of the machine base, a spindle head body movably connected to the inner side of the support base, a motor base provided on the surface of the machine base, a drive motor fixedly installed on the upper surface of the motor base, and the output end of the drive motor and the spindle head body fixedly connected.

[0006] The surface of the base is provided with a protective mechanism, which includes a fixed base. The fixed base is fixedly connected to the upper surface of the base. A fixed rod is fixedly connected to the inner wall of the fixed base. A movable block is movably connected to the surface of the fixed rod. A movable rod is movably connected to the top of the movable block. A spring is fixedly connected to the surface of the movable block. A damping element is fixedly connected to the inner wall of the fixed base.

[0007] Preferably, the protective mechanism further includes a connecting rod, which is fixedly connected to the lower surface of the motor base. The inner side of the fixed base is provided with a movable groove, and the connecting rod moves within the movable groove.

[0008] Preferably, the fixed rods are in four groups and fixedly connected to the fixed base, one end of the movable rod is movably connected to the moving block through a rotating shaft, and the other end of the movable rod is movably connected to the motor base through a rotating shaft.

[0009] Preferably, one end of the spring is fixedly connected to the fixed seat, the other end of the spring is fixedly connected to the moving block, and both ends of the damping element are fixedly connected to the fixed seat and the motor base, respectively.

[0010] Preferably, the surface of the base is provided with a spraying mechanism, the spraying mechanism includes a water tank, the water tank is fixedly connected to the surface of the base, the top of the water tank is fixedly connected to a water inlet pipe, a water pump is fixedly installed on the surface of the water tank, a delivery pipe is fixedly connected to the surface of the water pump, a spray pipe is fixedly connected to the end of the delivery pipe away from the water pump, and a nozzle is fixedly connected to the bottom end of the spray pipe.

[0011] Preferably, the end of the water pump away from the delivery pipe is fixedly connected to the water tank via a pipe, and the spray pipe is fixedly connected to the surface of the support base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. When the drive motor vibrates during operation, the elastic properties of the spring can absorb the vibration generated by the high-speed rotation of the drive motor, which helps to reduce the vibration amplitude. The damping component can suppress the secondary vibration caused by the spring rebound, and can dissipate vibration energy. In addition, through the combined action of the spring and the damping component, the amplitude of the vibration transmitted from the drive motor to the spindle head body can be reduced, which can avoid resonance to the spindle head body, thus protecting the spindle head body and ensuring the quality and accuracy of the workpiece processing by the spindle head body. At the same time, it helps to extend the service life of the spindle head body.

[0014] 2. Water can be added to the water tank through the water inlet pipe, and the water tank can store water. The water in the tank is pumped out by the water pump, and the water enters the spray pipe through the delivery pipe under the action of the water pump, and is sprayed out through the nozzle, thereby spraying the spindle head body. This spraying can achieve the effect of cooling the spindle head body, which can facilitate cooling of the spindle head body and prevent damage caused by overheating, thus helping to extend the service life of the spindle head body. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view of the exploded structure of this utility model;

[0017] Figure 3 This is an exploded side view of the structure of the fixed base and the movable rod of this utility model;

[0018] Figure 4 This is a rear view schematic diagram of the structure of the water tank and nozzle of this utility model.

[0019] In the diagram: 1. Base; 11. Support base; 12. Main spindle head body; 13. Motor base; 14. Drive motor; 2. Fixed base; 21. Fixed rod; 22. Moving block; 23. Movable rod; 24. Spring; 25. Damping component; 26. Connecting rod; 27. Movable groove; 3. Water tank; 31. Water inlet pipe; 32. Water pump; 33. Delivery pipe; 34. Spray pipe; 35. Nozzle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 One embodiment provided by this utility model:

[0022] The drive motor 14 and water pump 32 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0023] A CNC lathe spindle head includes a base 1, a support base 11 fixedly connected to the upper surface of the base 1, a spindle head body 12 movably connected to the inner side of the support base 11, a motor base 13 provided on the surface of the base 1, a drive motor 14 fixedly mounted on the upper surface of the motor base 13, and the output end of the drive motor 14 fixedly connected to the spindle head body 12. The support base 11 can support the spindle head body 12, and the drive motor 14 can drive the spindle head body 12 to rotate at high speed, providing the necessary speed for lathe machining.

[0024] The surface of the machine base 1 is provided with a protective mechanism, which includes a fixed base 2. The fixed base 2 is fixedly connected to the upper surface of the machine base 1. A fixed rod 21 is fixedly connected to the inner wall of the fixed base 2. A movable block 22 is movably connected to the surface of the fixed rod 21. A movable rod 23 is movably connected to the top of the movable block 22. A spring 24 is fixedly connected to the surface of the movable block 22. A damping element 25 is fixedly connected to the inner wall of the fixed base 2. Through the cooperation of the spring 24 and the damping element 25, the vibration impact brought by the drive motor 14 can be buffered and the vibration energy can be dissipated. This can alleviate the vibration of the drive motor 14 and suppress the resonance of the spindle head body 12, thereby improving the processing stability.

[0025] Furthermore, the protective mechanism also includes a connecting rod 26, which is fixedly connected to the lower surface of the motor base 13. The inner side of the fixed seat 2 is provided with a movable groove 27, and the connecting rod 26 moves within the movable groove 27. The connecting rod 26 can support the motor base 13. The cooperation between the connecting rod 26 and the movable groove 27 can limit the movement of the motor base 13, thus better ensuring the stable operation of the drive motor 14.

[0026] Furthermore, the fixed rods 21 are fixedly connected to the fixed base 2 in four groups. One end of the movable rod 23 is movably connected to the moving block 22 through a rotating shaft, and the other end of the movable rod 23 is movably connected to the motor base 13 through a rotating shaft. The movable rod 23 can support the motor base 13. With the spring 24, the spring 24 undergoes elastic deformation under the action of the movable rod 23, which can absorb the impact energy generated by the high-speed rotation of the drive motor 14, thereby reducing the vibration amplitude and reducing the impact on the spindle head body 12.

[0027] Furthermore, one end of the spring 24 is fixedly connected to the fixed seat 2, and the other end of the spring 24 is fixedly connected to the moving block 22. The two ends of the damping element 25 are fixedly connected to the fixed seat 2 and the motor base 13 respectively. By setting the damping element 25, the secondary vibration caused by the rebound of the spring 24 can be suppressed, the risk of resonance can be reduced, and thus the protection of the spindle head body 12 can be achieved.

[0028] Furthermore, a spraying mechanism is provided on the surface of the base 1. The spraying mechanism includes a water tank 3, which is fixedly connected to the surface of the base 1. A water inlet pipe 31 is fixedly connected to the top of the water tank 3. A water pump 32 is fixedly installed on the surface of the water tank 3. A delivery pipe 33 is fixedly connected to the surface of the water pump 32. A spray pipe 34 is fixedly connected to the end of the delivery pipe 33 away from the water pump 32. A nozzle 35 is fixedly connected to the bottom end of the spray pipe 34. The nozzle 35 allows the spindle head body 12 to be sprayed, thereby cooling the spindle head body 12 and helping to ensure the service life of the spindle head body 12.

[0029] Furthermore, the end of the water pump 32 away from the delivery pipe 33 is fixedly connected to the water tank 3 via a pipe, and the spray pipe 34 is fixedly connected to the surface of the support base 11. With the water pump 32, water in the water tank 3 can be drawn out and delivered through the delivery pipe 33, so that water can be sprayed out through the nozzle 35, achieving the effect of spraying the main shaft head body 12.

[0030] Working principle: When the drive motor 14 vibrates during operation, the motor base 13 vibrates accordingly under the action of the drive motor 14, enabling the connecting rod 26 to move within the movable slot 27. Simultaneously, the movable rod 23 moves through the rotating shaft under the action of the motor base 13, causing the moving block 22 to move on the surface of the fixed rod 21. The spring 24 deforms, and the elastic properties of the spring 24 can absorb the impact of vibration, thus mitigating the vibration. The damping element 25 suppresses the secondary vibration caused by the rebound of the spring 24, dissipating vibration energy. Furthermore, through the cooperation of the spring 24 and the damping element 25, the amplitude of the vibration transmitted from the drive motor 14 to the spindle can be reduced, preventing resonance of the spindle head body 12 and thus protecting the spindle head body 12.

[0031] Water is added to the water tank 3 through the water inlet pipe 31. The water pump 32 is electrically connected to an external power source. The operator starts the water pump 32 by pressing the switch. The water pump 32 works to draw water out of the water tank 3 and transport the water through the delivery pipe 33. The water is sprayed out through the spray pipe 34 and the nozzle 35 to spray the spindle head body 12, thereby cooling the spindle head body 12.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A CNC lathe spindle head, comprising a base (1), a support seat (11) fixedly connected to the upper surface of the base (1), a spindle head body (12) movably connected to the inner side of the support seat (11), a motor base (13) provided on the surface of the base (1), a drive motor (14) fixedly mounted on the upper surface of the motor base (13), and the output end of the drive motor (14) and the spindle head body (12) fixedly connected; Its features are, The surface of the base (1) is provided with a protective mechanism, which includes a fixed seat (2). The fixed seat (2) is fixedly connected to the upper surface of the base (1). A fixed rod (21) is fixedly connected to the inner wall of the fixed seat (2). A moving block (22) is movably connected to the surface of the fixed rod (21). A moving rod (23) is movably connected to the top of the moving block (22). A spring (24) is fixedly connected to the surface of the moving block (22). A damping element (25) is fixedly connected to the inner wall of the fixed seat (2).

2. A CNC lathe spindle head according to claim 1, characterized in that: The protective mechanism also includes a connecting rod (26), which is fixedly connected to the lower surface of the motor base (13). The inner side of the fixed seat (2) is provided with a movable groove (27), and the connecting rod (26) moves within the movable groove (27).

3. The headstock of claim 1, wherein: The fixed rod (21) is fixedly connected to the fixed seat (2) in four groups. One end of the movable rod (23) is movably connected to the moving block (22) through a rotating shaft. The other end of the movable rod (23) is movably connected to the motor base (13) through a rotating shaft.

4. The headstock of claim 1, wherein: One end of the spring (24) is fixedly connected to the fixed seat (2), the other end of the spring (24) is fixedly connected to the moving block (22), and the two ends of the damping element (25) are fixedly connected to the fixed seat (2) and the motor base (13) respectively.

5. The headstock of claim 1, wherein: A spraying mechanism is provided on the surface of the base (1). The spraying mechanism includes a water tank (3). The water tank (3) is fixedly connected to the surface of the base (1). A water inlet pipe (31) is fixedly connected to the top of the water tank (3). A water pump (32) is fixedly installed on the surface of the water tank (3). A delivery pipe (33) is fixedly connected to the surface of the water pump (32). A spray pipe (34) is fixedly connected to the end of the delivery pipe (33) away from the water pump (32). A nozzle (35) is fixedly connected to the bottom end of the spray pipe (34).

6. A CNC lathe spindle head according to claim 5, characterised in that: The end of the water pump (32) away from the delivery pipe (33) is fixedly connected to the water tank (3) through a pipe, and the nozzle (34) is fixedly connected to the surface of the support base (11).

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