A CNC machining center automatic spraying device
By adjusting the position of the spray head through gears and a motor-driven transmission belt, the problem of positional misalignment caused by fixing the spray device is solved, enabling effective removal of iron filings from different tools and improving the cleanliness and safety of CNC machining centers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI LANZHI PRECISION MACHINERY CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-04
AI Technical Summary
The existing spray system in CNC machining centers is fixedly installed and cannot adjust its position, which makes it unable to match different tool lengths, resulting in spray position deviation and ineffective removal of chips.
The system uses gears and a motor to drive a transmission belt, which in turn moves the moving block and the universal spray head to adjust its position, ensuring that the spray head is aligned with the blade tip. Automatic adjustment is achieved through a controller and a pressure sensor.
The spray head position can be flexibly adjusted to ensure that iron filings are effectively flushed away when different tools are working, thus improving the cleanliness and safety of the machining center.
Smart Images

Figure CN224587614U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray equipment technology, and in particular to an automatic spray device for CNC machining centers. Background Technology
[0002] A CNC machining center is a high-precision automated machining equipment that integrates numerical control technology, mechanical structure, and tooling system. It can complete a variety of complex machining processes such as milling, drilling, boring, tapping, and chamfering through computer program control. It is widely used in high-end manufacturing fields such as aerospace, automobile manufacturing, mold processing, and medical devices.
[0003] However, in existing technology, existing CNC machining centers are generally equipped with spray devices to prevent metal chips from flying around during machining. These spray devices are usually fixed in the CNC machining center and cannot adjust their own position, which makes them unable to meet different machining requirements. For example, if the tool length changes from a short milling cutter to a long drill bit, the "tool cutting area" will shift backward and forward, and the original spray position may not be able to cover the tool tip, thus failing to ensure that metal chips are flushed away. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies: spraying devices are generally fixedly installed in CNC machining centers and cannot adjust their own position, resulting in an inability to match different machining requirements. For example, when the tool length changes from a short milling cutter to a long drill bit, the position of the "tool cutting area" will shift, and the original spraying position may not be able to cover the tool tip, thus failing to ensure that the chips are flushed away.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic spraying device for a CNC machining center, comprising a mounting plate, a movable groove in which a gear is rotatably connected, a transmission belt meshing with the surface of the gear, a motor fixed on the upper surface of the mounting plate, and the output shaft of the motor passing through the mounting plate and fixedly connected to the surface of the gear, a movable block fixed on the lower surface of the transmission belt, and the movable block slidably connected to the mounting plate, a connecting block fixed at one end of the movable block, and a water flow channel in the connecting block, a water delivery hose and a universal spray head fixed at the rear end and front end of the connecting block at the water flow channel respectively, a fixing block fixed at both ends of the movable block's moving track on the lower surface of the mounting plate, a pressure sensor fixed on one side of the fixing block, and a controller fixed on one side of the mounting plate.
[0006] In a preferred embodiment, the thickness of the gear and the transmission belt is adapted to the thickness of the movable groove in the mounting plate.
[0007] In a preferred embodiment, a protective cover is fixedly connected to the surface of the mounting plate at the motor mounting position.
[0008] In a preferred embodiment, a track rod is fixed to the surface of the fixed block, and the track rod is connected to the movable block through it.
[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0010] This invention uses gears and a motor to drive a transmission belt, which in turn moves a moving block, which in turn moves a connecting block, a water delivery hose, and a universal spray head. This changes the distance between the universal spray head and the cutting tool, adjusting the position of the universal spray head so that it can be aligned with the tip of different types of cutting tools, ensuring that iron filings generated when different tools are working are flushed away. Attached Figure Description
[0011] Figure 1 A schematic diagram of the overall structure of an automatic spraying device for a CNC machining center provided by this utility model;
[0012] Figure 2 A schematic diagram of the internal structure of the mounting plate of the automatic spraying device for a CNC machining center provided by this utility model;
[0013] Figure 3 This utility model provides an automatic spraying device for CNC machining centers. Figure 1 Enlarged view of point A in the middle.
[0014] Legend:
[0015] 1. Mounting plate; 2. Gear; 3. Drive belt; 4. Motor; 5. Protective cover; 6. Moving block; 7. Connecting block; 8. Water delivery hose; 9. Universal spray head; 10. Fixing block; 11. Pressure sensor; 12. Controller; 13. Track rod. Detailed Implementation
[0016] 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.
[0017] Example 1
[0018] like Figure 1-3As shown, this utility model provides a technical solution: an automatic spraying device for a CNC machining center, including a mounting plate 1. A movable groove is formed in the mounting plate 1, and a gear 2 is rotatably connected in the movable groove. A transmission belt 3 meshes with the surface of the gear 2. A motor 4 is fixed to the upper surface of the mounting plate 1, and the output shaft of the motor 4 passes through the mounting plate 1 and is fixedly connected to the surface of the gear 2. Starting the motor 4 drives one of the gears 2 to rotate, and the rotation of the gear 2 drives the transmission belt 3 to move. A movable block 6 is fixed to the lower surface of the transmission belt 3, and the movable block 6 is slidably connected to the mounting plate 1. A connecting block 7 is fixed to one end of the movable block 6, and a water flow channel is formed in the connecting block 7. A water supply hose 8 and a universal spray head 9 are respectively fixed at the rear end and front end of the connecting block 7 at the water flow channel. When the universal spray head 9 needs to be adjusted, the motor 4 is manually started by the operating controller 12 to drive the gear 2 to rotate, causing the transmission belt 3 to move. The movement of the transmission belt 3 drives the movement of the movable block 6, thereby driving the connecting block 7 and the water supply hose 8. The hose 8 and the universal spray head 9 move to change the distance between the universal spray head 9 and the blade, adjusting the position of the universal spray head 9 so that it can be aligned with the tip of different types of blades, ensuring that the iron filings generated when different blades are working are flushed away. The lower surface of the mounting plate 1 is fixed with fixing blocks 10 at both ends of the moving track of the moving block 6. A pressure sensor 11 is fixed on one side of the fixing block 10, and a controller 12 is fixed on one side of the mounting plate 1. When the moving block 6 moves to both ends of the moving track on the mounting plate 1, it will squeeze the pressure sensor 11. The pressure information of the pressure sensor 11 will be transmitted to the controller 12 in real time. After receiving and analyzing the information, the controller 12 will immediately control the motor 4 to rotate, driving the gear 2 and the transmission belt 3 to move in the opposite direction. This allows the moving block 6 to turn back in time when it moves to both ends of the moving track on the mounting plate 1, avoiding the situation where the moving block 6 cannot move while the transmission belt 3 continues to move, which would damage the connection point between the transmission belt 3 and the moving block 6.
[0019] Example 2
[0020] like Figure 1-3 As shown, the thickness of gear 2 and transmission belt 3 is matched with the thickness of the movable groove in mounting plate 1, which facilitates the smooth movement of gear 2 and transmission belt 3 in the movable groove of mounting plate 1. A protective cover 5 is fixedly connected to the surface of mounting plate 1 at the mounting position of motor 4. The protective cover 5 protects motor 4. A track rod 13 is fixed to the surface of fixed block 10, and the track rod 13 is connected to the moving block 6 through it. The setting of track rod 13 further improves the stability of moving block 6 moving back and forth along mounting plate 1.
[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. An automatic spraying device for a CNC machining center, comprising a mounting plate (1), characterized in that: The mounting plate (1) has a movable groove, and a gear (2) is rotatably connected in the movable groove. A transmission belt (3) meshes with the surface of the gear (2). A motor (4) is fixed on the upper surface of the mounting plate (1), and the output shaft of the motor (4) passes through the mounting plate (1) and is fixed to the surface of the gear (2). A moving block (6) is fixed on the lower surface of the transmission belt (3), and the moving block (6) is slidably connected to the mounting plate (1). A connecting block (7) is fixed at one end of the moving block (6), and a water flow channel is opened in the connecting block (7). A water delivery hose (8) and a universal spray head (9) are fixed at the rear end and front end of the connecting block (7) at the water flow channel, respectively. Fixed blocks (10) are fixed at both ends of the moving track of the moving block (6) on the lower surface of the mounting plate (1). A pressure sensor (11) is fixed on one side of the fixed block (10), and a controller (12) is fixed on one side of the mounting plate (1).
2. The automatic spraying device for a CNC machining center according to claim 1, characterized in that: The thickness of the gear (2) and the transmission belt (3) is adapted to the thickness of the movable groove in the mounting plate (1).
3. The automatic spraying device for a CNC machining center according to claim 1, characterized in that: The surface of the mounting plate (1) is fixedly connected to a protective cover (5) at the mounting position of the motor (4).
4. The automatic spraying device for a CNC machining center according to claim 1, characterized in that: The surface of the fixed block (10) is fixed with a track rod (13), and the track rod (13) is connected to the moving block (6) through.