Anti-interference structure of laser tool setting gauge
By using an anti-interference structure consisting of a pneumatic block, shuttle valve, and solenoid valve on the laser tool setter, and by using high-pressure gas to purge water from the nozzle and remove debris, the problem of residual water dripping from the nozzle affecting measurement accuracy is solved, thereby improving the stability of laser tool setting and the precision of CNC machining centers.
Patent Information
- Application Number
- CN202520499428.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-20
AI Technical Summary
After machining is completed, residual water droplets from the nozzle of the existing laser tool setter affect the accuracy of the measurement results, resulting in a decrease in the machining accuracy of the CNC machining center.
The anti-interference structure employs a pneumatic block, shuttle valve, and solenoid valve. High-pressure gas is used to purge water from the nozzle and remove debris around the laser tool setter, ensuring the stability and accuracy of laser tool setting.
It effectively avoids external interference during laser tool setting, ensuring the accuracy of laser tool setting and the machining precision of CNC machining centers. It has a simple structure and low cost.
Smart Images

Figure CN223889560U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of CNC machining centers, and specifically relates to an anti-interference structure for a laser tool setter. Background Technology
[0002] To improve the production efficiency and machining accuracy of CNC machining centers and reduce machining errors, it is often necessary to configure a laser tool setter that can accurately measure the tool wear condition. A laser tool setter can be used to detect and adjust parameters such as tool diameter, length, and cutting edge position, helping operators to quickly perform machining operations, thereby improving the machining accuracy and efficiency of the CNC machining center.
[0003] The laser tool setter is mounted on the machine tool's worktable. During normal machine operation, the external water cooling system cools the tool mounted on the spindle via nozzles on the side of the spindle box. After machining, the external water cooling system is turned off, and the nozzles stop spraying water. At this point, the machine tool can execute the tool setting command. Through the movement of the machine tool's X, Y, and Z axes, the spindle, carrying the tool, moves above the laser tool setter. After adjustment, the tool's cutting edge is placed in the laser tool setter for setting. However, residual water in the nozzles above the laser tool setter continues to drip, causing deviations in the laser tool setter's measurement results, affecting the accuracy of laser tool setting, and consequently impacting the machining precision of the CNC machining center. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an anti-interference structure for a laser tool setting device, which is low in cost, simple and practical, and can avoid external interference during laser tool setting.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a laser tool setting anti-interference structure, which includes an air block, a shuttle valve and a solenoid valve. The air block is installed on the side of the machine tool spindle box. The shuttle valve is installed at the inlet of the air block. The two inlets of the shuttle valve are respectively connected to a water pipe and an air pipe. The water pipe is connected to the machine tool water tank via a water pump. The air pipe is connected to an external high-pressure air source via the solenoid valve. The outlet of the shuttle valve is connected to the inlet of the air block. The outlet of the air block is connected to several nozzles.
[0006] The working process of this anti-interference structure is as follows: After the machine tool is finished, when laser tool setting is required, the water pump is turned off, the solenoid valve is energized, the air pipe is opened and high-pressure gas is introduced. The high-pressure gas passes through the shuttle valve and the air passage block to the nozzle to realize the blowing function, blowing out all the residual water in the nozzle. After the solenoid valve has been working for a period of time, it is de-energized and closed. After that, the spindle moves with the tool above the laser tool setting instrument, and laser tool setting can be performed without the interference of water dripping from the nozzle, ensuring the stability and accuracy of laser tool setting.
[0007] Before laser tool setting, after the spindle moves the tool above the laser tool setter, the solenoid valve can continue to work for a period of time to continue blowing air into the nozzle, blowing away the residual debris around the laser tool setter, thereby further avoiding external interference during laser tool setting.
[0008] After tool setting is completed and the solenoid valve is closed, the machine tool can begin machining the workpiece. During the machining process, the water pump is turned on, supplying cooling water to the water pipes. The cooling water is then directed to the nozzles via the shuttle valve and air passage block to cool the cutting tools mounted on the spindle.
[0009] Preferably, the solenoid valve is a two-position five-way solenoid valve, which is mounted on a pneumatic control board, which is mounted on the machine tool protective sheet metal.
[0010] Preferably, a gas filter is installed in the gas line between the solenoid valve and the external high-pressure gas source. The gas filter is used to filter out impurity particles entrained in the high-pressure gas to avoid unnecessary impact and damage to the solenoid valve, shuttle valve, gas block, cutting tool, and tool setter.
[0011] Preferably, a spindle box bracket is installed on the upper end of one side of the machine tool spindle box, and the two ends of the water pipe are respectively connected to a water inlet connector and a water outlet connector, and the two ends of the air pipe are respectively connected to an air inlet connector and an air outlet connector. The water inlet connector and the air inlet connector are respectively installed on the spindle box bracket, and the water outlet connector and the air outlet connector are respectively connected to the two inlets of the shuttle valve.
[0012] Furthermore, the air intake connector is connected to the transition connector, the transition connector is installed on the spindle box bracket, and the transition connector is connected to the solenoid valve via a transition air pipe to facilitate the overall air circuit layout design.
[0013] Compared with existing technologies, this utility model has the following advantages: The anti-interference structure of this utility model's laser tool setting device is low in cost, simple and practical in structure, and can avoid external interference during laser tool setting. Before laser tool setting, this anti-interference structure can blow out all residual water in the nozzle, thereby preventing residual water from dripping from the nozzle and ensuring the stability and accuracy of laser tool setting. Before laser tool setting, after the spindle carrying the tool moves above the laser tool setting device, the solenoid valve can continue to operate for a period of time to continue blowing air into the nozzle, blowing away any residual debris around the laser tool setting device, thereby further avoiding external interference during laser tool setting. Attached Figure Description
[0014] Figure 1 This is a front view of the anti-interference structure of the laser tool setting device after installation in the embodiment.
[0015] Figure 2 This is a side view of the anti-interference structure of the laser tool setting device after installation in the embodiment.
[0016] Figure 3 For corresponding Figure 2 Top view;
[0017] Figure 4 This is a schematic diagram of the anti-interference structure of the laser tool setting device in the embodiment;
[0018] The specific reference numerals in the figure are as follows:
[0019] 1-Air circuit block, 2-Shuttle valve, 3-Solenoid valve, 4-Machine tool spindle box, 5-Water pipe, 6-Air pipe, 7-Water pump, 8-Machine tool water tank, 9-External high-pressure air source, 10-Nozzle, 11-Air control board, 12-Gas filter, 13-Spindle box bracket, 14-Water inlet connector, 15-Water outlet connector, 16-Air inlet connector, 17-Air outlet connector, 18-Transition connector, 19-Transition air pipe, 20-Tool, 21-Laser tool setter, 22-Machine tool worktable. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Structures or components not limited in this invention employ conventional techniques in the art.
[0021] The anti-interference structure of the laser tool setter in the embodiment is applied to Figures 1-3 The vertical machining center shown. (Example) Figures 1-4 As shown, the anti-interference structure of the laser tool setter includes an air circuit block 1, a shuttle valve 2, and a solenoid valve 3. The air circuit block 1 is installed on the side of the machine tool spindle box 4. The shuttle valve 2 is installed at the inlet of the air circuit block 1. The two inlets of the shuttle valve 2 are connected to a water pipe 5 and an air pipe 6, respectively. The water pipe 5 is connected to the machine tool water tank 8 via a water pump 7. The air pipe 6 is connected to an external high-pressure air source 9 via the solenoid valve 3. The outlet of the shuttle valve 2 is connected to the inlet of the air circuit block 1. The outlet of the air circuit block 1 is connected to three nozzles 10.
[0022] In this embodiment, the solenoid valve 3 is a two-position five-way solenoid valve. The solenoid valve 3 is mounted on the pneumatic control board 11, which is mounted on the machine tool protective sheet metal (not shown in the figure). A gas filter 12 is installed in the air path between the solenoid valve 3 and the external high-pressure gas source 9. The gas filter 12 is used to filter impurity particles entrained in the high-pressure gas.
[0023] In this embodiment, a spindle box bracket 13 is installed on the upper end of one side of the machine tool spindle box 4. The two ends of the water pipe 5 are respectively connected to a water inlet connector 14 and a water outlet connector 15. The two ends of the air pipe 6 are respectively connected to an air inlet connector 16 and an air outlet connector 17. The water inlet connector 14 and the air inlet connector 16 are respectively installed on the spindle box bracket 13. The water outlet connector 15 and the air outlet connector 17 are respectively connected to the two inlets of the shuttle valve 2. The air inlet connector 16 is connected to the transition connector 18. The transition connector 18 is installed on the spindle box bracket 13. The transition connector 18 is connected to the solenoid valve 3 through the transition air pipe 19.
[0024] The aforementioned anti-interference structure for laser tool setting is low in cost, simple in structure, and practical, and can avoid external interference during laser tool setting. The working process of this anti-interference structure is as follows: After the machine tool is finished, when laser tool setting is required, the water pump 7 is turned off, the solenoid valve 3 is energized, the air pipe 6 is opened, and high-pressure gas with a pressure of 0.4-0.6 MPa is introduced. The high-pressure gas passes through the shuttle valve 2 and the air passage block 1 to the nozzle 10, realizing the blowing function and blowing out all the residual water in the nozzle 10. After the solenoid valve 3 has been working for a period of time, it is de-energized and closed. Afterwards, the spindle, carrying the tool 20, moves above the laser tool setting device 21 (the laser tool setting device 21 is installed on the machine tool worktable 22), allowing laser tool setting to be performed without interference from water dripping from the nozzle 10, ensuring the stability and accuracy of laser tool setting.
[0025] Before laser tool setting, after the spindle moves the tool 20 above the laser tool setter 21, the solenoid valve 3 can continue to work for a period of time to continue blowing air into the nozzle 10 to blow away the residual debris around the laser tool setter 21, thereby further avoiding external interference during laser tool setting.
[0026] After tool setting is completed and solenoid valve 3 is closed, the machine tool can begin machining the workpiece. During the machining process, water pump 7 is turned on to supply cooling water to water pipe 5. The cooling water is then directed to nozzle 10 via shuttle valve 2 and air block 1 to cool the tool 20 mounted on the spindle.
Claims
1. An anti-interference structure for a laser tool setting device, characterized in that, The anti-interference structure includes an air passage block, a shuttle valve, and a solenoid valve. The air passage block is installed on the side of the machine tool spindle box. The shuttle valve is installed at the inlet of the air passage block. The two inlets of the shuttle valve are connected to a water pipe and an air pipe, respectively. The water pipe is connected to the machine tool water tank via a water pump. The air pipe is connected to an external high-pressure air source via the solenoid valve. The outlet of the shuttle valve is connected to the inlet of the air passage block. The outlet of the air passage block is connected to several nozzles.
2. The anti-interference structure for a laser tool setting device according to claim 1, characterized in that, The solenoid valve is a two-position five-way solenoid valve, which is mounted on a pneumatic control board, which is mounted on the machine tool protective sheet metal.
3. The anti-interference structure for a laser tool setting device according to claim 1 or 2, characterized in that, A gas filter is installed in the gas line between the solenoid valve and the external high-pressure gas source.
4. The anti-interference structure for a laser tool setting device according to claim 1, characterized in that, A spindle box bracket is installed on the upper end of one side of the machine tool spindle box. The two ends of the water pipe are respectively connected to a water inlet connector and a water outlet connector. The two ends of the air pipe are respectively connected to an air inlet connector and an air outlet connector. The water inlet connector and the air inlet connector are respectively installed on the spindle box bracket. The water outlet connector and the air outlet connector are respectively connected to the two inlets of the shuttle valve.
5. The anti-interference structure for a laser tool setting device according to claim 4, characterized in that, The air inlet connector is connected to the transition connector, the transition connector is installed on the spindle box bracket, and the transition connector is connected to the solenoid valve via a transition air pipe.