Precise cooling and lubricating system of numerical control turning center

Abstract

The utility model discloses a precise cooling and lubricating system of a numerical control turning center, and belongs to the field of numerical control turning systems. A precise cooling and lubricating system of a numerical control turning center comprises a lathe panel, a lead screw is arranged on the front face of the lathe panel, the surface of the lead screw is in threaded connection with an advancing frame located at the top of the lathe panel, connecting frames are arranged on the left side and the right side of the lathe panel correspondingly, and electric spray heads are connected to the surfaces of the connecting frames in an inserted mode. The electric spray head is located on the front face of the lead screw, the input end of the electric spray head communicates with a liquid supply pipe, and the front face of the lathe panel is fixedly connected with a liquid collecting tank located at the bottom of the lead screw. The overall-length lubricating area of the lead screw can be covered through the layout of the nozzles on the two sides, the local overheating risk is eliminated, cooling liquid is recycled through the liquid collecting tank and reused through the liquid supply pipe, resource waste is reduced, the maintenance cost is reduced, meanwhile, the nozzles are directly connected to the connecting frame in an inserted mode, the installation process is simplified, and the system modularization degree is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC turning system technology, and in particular to a precision cooling and lubrication system for a CNC turning center. Background Technology

[0002] A CNC turning center is a high-precision automated machine tool that integrates CNC technology. It is mainly used to process rotationally symmetrical parts. Compared with traditional lathes, CNC turning centers control the machining process through computer programs, resulting in higher efficiency, precision, and flexibility.

[0003] For example, patent application number 201110005123.0 published on the China Patent Network, entitled "Precision CNC Turning Center with a Hydrostatic Spindle System Mechanism," includes a slant bed, a spindle box bracket fixedly mounted on the slant bed, and a hydrostatic spindle system mechanism fixedly connected above the spindle box bracket. The oil inlet, oil outlet, and coolant inlet of the hydrostatic spindle system mechanism are connected to the oil supply and cooling devices of the turning center via pipe joints. Because the spindle mechanism is an integral hydrostatic spindle system mechanism, connected to the slant bed below via the spindle box bracket, it greatly improves the installation accuracy of the machine tool and the machining accuracy of the workpiece. It also has fewer overall components and is easy to install.

[0004] However, existing turning centers mainly cool the workpiece through cooling devices, while the lead screw used for transmission is directly exposed to the external environment. When the lead screw rotates at high speed, it generates a lot of heat when it comes into contact with the feed table. The heat changes can cause slight errors in the transmission distance of the lead screw, affecting the machining allowance. Utility Model Content

[0005] The purpose of this invention is to solve the problem of heat generation caused by high-speed rotation of the lead screw in the prior art, and to propose a precision cooling and lubrication system for CNC turning centers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A precision cooling and lubrication system for a CNC turning center includes a lathe panel. A lead screw is provided on the front of the lathe panel, and a travel carriage located at the top of the lathe panel is threaded onto the surface of the lead screw. Connecting frames are provided on the left and right sides of the lathe panel, and electric nozzles are inserted into the surfaces of the connecting frames. The electric nozzles are located on the front of the lead screw, and the input end of the electric nozzles is connected to a liquid supply pipe. A liquid collection tank located at the bottom of the lead screw is fixedly connected to the front of the lathe panel. The end of the liquid supply pipe away from the electric nozzles extends into the interior of the liquid collection tank and draws coolant from the interior of the liquid collection tank.

[0008] As a preferred technical solution of this application, support plates are fixedly connected to both sides of the front of the traveling frame, guide rods are fixedly connected to the inner side of the support plates, and guide plates are fixedly connected to the inner side of the connecting frame. The guide plates are sleeved on the surface of the guide rods and are slidably connected to the guide rods.

[0009] As a preferred technical solution of this application, a threaded sleeve is provided on the front of the traveling frame, and cranks are movably connected to both sides of the back of the threaded sleeve via pins. A connecting block is movably connected to the side of the crank away from the threaded sleeve via a pin, and the outer side of the connecting block is fixedly connected to the inner side of the guide plate.

[0010] As a preferred technical solution of this application, a frame is fixedly connected to the front of the traveling frame, and a screw is movably connected to the inside of the frame through a bearing. The top end of the screw extends through to the top of the frame and is fixedly connected to a wheel. A screw sleeve is fitted on the surface of the screw and threadedly connected to the screw.

[0011] As a preferred technical solution of this application, a guide plate located between the lead screw and the liquid collection tank is fixedly connected to the front of the lathe panel, and the guide plate is set in an inclined hollow shape.

[0012] As a preferred technical solution of this application, wiping rings are fixedly connected to both sides of the traveling frame, and the wiping rings are sleeved on the surface of the lead screw and slidably connected to the lead screw.

[0013] Compared with the prior art, this utility model provides a precision cooling and lubrication system for CNC turning centers, which has the following beneficial effects:

[0014] 1. The precision cooling and lubrication system of this CNC turning center can cover the entire lubrication area of ​​the lead screw through the double-sided nozzle layout, eliminating the risk of local overheating. The coolant is recovered in the collection tank and reused through the supply pipe, reducing resource waste and maintenance costs. At the same time, the nozzles are directly plugged into the connecting frame, simplifying the installation process and improving the modularity of the system.

[0015] 2. The precision cooling and lubrication system of this CNC turning center ensures the stability of the nozzle during lateral movement by sliding the guide plate along the guide rod, preventing inaccurate coolant spraying caused by deviation. The guide rod sliding structure allows the nozzle to be adjusted synchronously with the traveling frame to adapt to the cooling requirements of different machining strokes.

[0016] 3. The precision cooling and lubrication system of this CNC turning center converts the rotational motion of the screw into transverse linear motion through a crank mechanism, enabling precise fine-tuning of the nozzle position. The rigid connecting block is fixed to the guide plate to avoid positioning errors caused by loosening of the mechanism.

[0017] 4. The precision cooling and lubrication system of this CNC turning center can control the position of the screw sleeve by operating the rotary wheel, without the need for complicated tools, which improves the convenience of maintenance. The screw thread has a self-locking function to ensure that the position of the nozzle is fixed after adjustment and resists vibration interference.

[0018] 5. The precision cooling and lubrication system of this CNC turning center accelerates the return of coolant through an inclined design, avoiding splashing or evaporation loss caused by liquid accumulation. The hollow structure intercepts contaminants such as metal chips, preventing blockage of the liquid supply pipe and nozzle, and extending the system life.

[0019] 6. The precision cooling and lubrication system of this CNC turning center continuously removes coolant residue and metal debris from the surface of the lead screw through a wiping ring, reducing contamination of the friction pair. During the cleaning process, it assists in applying coolant, improving the lubrication uniformity between the lead screw and the travel carriage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0023] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Lathe panel; 2. Lead screw; 3. Traveling frame; 4. Connecting frame; 5. Electric nozzle; 6. Liquid supply pipe; 7. Liquid collection tank; 8. Support plate; 9. Guide rod; 10. Guide plate; 11. Screw sleeve; 12. Crank; 13. Connecting block; 14. Frame; 15. Screw; 16. Rotary wheel; 17. Guide plate; 18. Wiping ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] Reference Figure 1-4A precision cooling and lubrication system for a CNC turning center includes a lathe panel 1. A lead screw 2 is mounted on the front of the lathe panel 1, and a travel frame 3 located at the top of the lathe panel 1 is threaded onto the surface of the lead screw 2. Connecting frames 4 are mounted on both the left and right sides of the lathe panel 1, and electric nozzles 5 are inserted into the surface of the connecting frames 4. The electric nozzles 5 are located on the front of the lead screw 2, and their input ends are connected to a supply pipe 6. A collection tank 7 located at the bottom of the lead screw 2 is fixedly connected to the front of the lathe panel 1. The end of the supply pipe 6 away from the electric nozzle 5 extends into the collection tank 7 and draws coolant from inside the collection tank 7. The dual-sided nozzle layout can cover the entire lubrication area of ​​the lead screw 2, eliminating the risk of localized overheating. The collection tank 7 recovers coolant and reuses it through the supply pipe 6, reducing resource waste and maintenance costs. Simultaneously, the nozzles are directly inserted into the connecting frames 4, simplifying the installation process and improving the system's modularity. Support plates 8 are fixedly connected to both sides of the front of the travel frame 3. A guide rod 9 is fixedly connected to the inner side of the 8, and a guide plate 10 is fixedly connected to the inner side of the connecting frame 4. The guide plate 10 is sleeved on the surface of the guide rod 9 and slidably connected to the guide rod 9. A threaded sleeve 11 is provided on the front side of the traveling frame 3. Cranks 12 are movably connected to both sides of the back of the threaded sleeve 11 via pins. A connecting block 13 is movably connected to the side of the crank 12 away from the threaded sleeve 11 via a pin. The outer side of the connecting block 13 is fixedly connected to the inner side of the guide plate 10. A frame 14 is fixedly connected to the front side of the traveling frame 3. Inside the frame 14, a screw 15 is movably connected via bearings. The top of the screw 15 extends through to the top of the frame 14 and is fixedly connected to a rotating wheel 16. A screw sleeve 11 is fitted onto the surface of the screw 15 and threadedly connected to the screw 15. A guide plate 17 is fixedly connected to the front of the lathe panel 1, located between the lead screw 2 and the liquid collection tank 7. The guide plate 17 is designed to be inclined and hollow. Wiping rings 18 are fixedly connected to both sides of the traveling frame 3. The wiping rings 18 are fitted onto the surface of the lead screw 2 and are slidably connected to the lead screw 2.

[0028] Specifically, the precision cooling and lubrication system of this CNC turning center operates as follows: After the CNC lathe starts, the lead screw 2 rotates at high speed under the drive of the motor, driving the threaded travel carriage 3 to move along the axis of the lead screw 2 to perform the machining task. At this time, the friction between the lead screw 2 and the travel carriage 3 and the high-speed movement generate heat. The electric nozzle 5 draws coolant from the collection tank 7 and sprays the coolant precisely onto the surface of the lead screw 2 through the supply pipe 6. The nozzles are arranged on the left and right sides of the front of the lead screw 2 to ensure that the lubrication area of ​​the entire length of the lead screw 2 is covered. The sprayed coolant flows down the surface of the lead screw 2 and is guided by the inclined hollow guide plate 17 to the collection tank 7 at the bottom. The coolant collected in the collection tank 7 is pumped back by the supply pipe 6. The electric nozzle 5 forms a closed-loop cycle, saving resources and maintaining cooling efficiency. When the traveling frame 3 moves, the wiping rings 18 on both sides move with it, continuously wiping the surface of the lead screw 2 to remove residual coolant, metal debris and contaminants, and to prevent impurities from aggravating friction or affecting the movement accuracy of the lead screw 2. When it is necessary to change the spacing of the electric nozzle 5, the rotating wheel 16 is manually rotated to drive the screw 15 to rotate. The screw 15 drives the screw sleeve 11 on the surface to move up and down. The linear motion is converted into the lateral displacement of the connecting block 13 through the crank 12 mechanism. The connecting block 13 pushes the guide plate 10 to slide along the guide rod 9, which drives the connecting frame 4 and the electric nozzle 5 to move laterally as a whole, and accurately adjusts the spacing or coverage area between the nozzle and the lead screw 2.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precision cooling and lubrication system for a CNC turning center, comprising a lathe panel (1), characterized in that, A lead screw (2) is provided on the front of the lathe panel (1). The surface of the lead screw (2) is threadedly connected to a travel frame (3) located at the top of the lathe panel (1). A connecting frame (4) is provided on both the left and right sides of the lathe panel (1). An electric nozzle (5) is inserted into the surface of the connecting frame (4). The electric nozzle (5) is located on the front of the lead screw (2). The input end of the electric nozzle (5) is connected to a liquid supply pipe (6). A liquid collection tank (7) located at the bottom of the lead screw (2) is fixedly connected to the front of the lathe panel (1). The end of the liquid supply pipe (6) away from the electric nozzle (5) extends into the interior of the liquid collection tank (7) and extracts the coolant inside the liquid collection tank (7).

2. The precision cooling and lubrication system for a CNC turning center according to claim 1, characterized in that, Support plates (8) are fixedly connected to both sides of the front of the traveling frame (3). A guide rod (9) is fixedly connected to the inner side of the support plate (8). A guide plate (10) is fixedly connected to the inner side of the connecting frame (4). The guide plate (10) is sleeved on the surface of the guide rod (9) and slidably connected to the guide rod (9).

3. The precision cooling and lubrication system for a CNC turning center according to claim 2, characterized in that, The front of the traveling frame (3) is provided with a threaded sleeve (11). Both sides of the back of the threaded sleeve (11) are movably connected to cranks (12) by pins. The side of the cranks (12) away from the threaded sleeve (11) is movably connected to a connecting block (13) by pins. The outer side of the connecting block (13) is fixedly connected to the inner side of the guide plate (10).

4. The precision cooling and lubrication system for a CNC turning center according to claim 3, characterized in that, The front of the traveling frame (3) is fixedly connected to a frame (14), and a screw (15) is movably connected inside the frame (14) through a bearing. The top end of the screw (15) extends through to the top of the frame (14) and is fixedly connected to a wheel (16). The screw sleeve (11) is sleeved on the surface of the screw (15) and threadedly connected to the screw (15).

5. The precision cooling and lubrication system for a CNC turning center according to claim 1, characterized in that, The lathe panel (1) is fixedly connected to a guide plate (17) located between the lead screw (2) and the liquid collection tank (7), and the guide plate (17) is set in an inclined hollow shape.

6. The precision cooling and lubrication system for a CNC turning center according to claim 1, characterized in that, Wiping rings (18) are fixedly connected to both sides of the traveling frame (3). The wiping rings (18) are sleeved on the surface of the lead screw (2) and slidably connected to the lead screw (2).

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