A numerical control machine tool spindle with flushable handle

Abstract

The utility model provides a numerical control machine tool main shaft of washable handle of sword, contain sleeve, mandrel, and the one end of mandrel is provided with the sword mounting hole, and the sleeve contains cylinder portion, flange portion, and the one end of mandrel is equipped with ring spouts front cover, and the top of ring spouts front cover is provided with annular water storage groove, and the bottom of ring spouts front cover is distributed with the oblique water jet mouth of annular water storage groove intercommunication, and the lateral wall of flange portion is provided with water inlet, and annular water storage groove and water inlet are communicated through waterway. Water is supplied to water inlet through water supply pipe, and water flow enters annular water storage groove through water inlet and waterway, and the water in annular water storage groove will be sprayed through each oblique water jet mouth and converge to the downside of sword mounting hole. When the main shaft is changed, the handle of the tool is assembled into the sword mounting hole of mandrel, and the high pressure water column sprayed through the oblique water jet mouth will wash the handle of the tool, avoid the handle with metal slag attached to be assembled into the sword mounting hole, reduce the wear and tear of the handle and the sword mounting hole of main shaft, and ensure the machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of CNC spindle technology, and more particularly to a CNC machine tool spindle with a washable tool holder. Background Technology

[0002] A spindle is a type of spindle used on CNC machine tools to drive the rotation of cutting tools to machine workpieces. Existing spindles lack a tool holder cleaning function. When metal shavings adhere to the tool holder, during tool changes, the tool holder is inserted into the spindle's tool mounting hole, easily causing wear on both the tool holder and the spindle's tool mounting hole. This affects machining accuracy and reduces the service life of both the spindle and the cutting tool. Summary of the Invention

[0003] The problem to be solved by this utility model is to provide a CNC machine tool spindle with a washable tool holder, which can wash the tool holder during tool changing to prevent the tool holder with metal slag from being inserted into the tool mounting hole of the spindle.

[0004] To solve the above technical problems, a CNC machine tool spindle with a washable tool holder is provided by this utility model, comprising a sleeve and a mandrel disposed in the sleeve. One end of the mandrel is provided with a tool mounting hole. The sleeve includes a cylindrical part and a flange part connected to one end of the cylindrical part. One end of the mandrel is fitted with a ring spray front cover fixedly connected to the bottom of the flange part. The top of the ring spray front cover is provided with an annular water storage tank. The bottom of the ring spray front cover is provided with oblique water spray nozzles that communicate with the annular water storage tank in a ring array. The side wall of the flange part is provided with a water inlet. The bottom of the flange part is provided with several water channels that connect one end of the water inlet to the annular water storage tank.

[0005] Preferably, the top of the annular spray front cover is provided with an annular groove communicating with the annular water storage tank, and the outer wall of the annular groove is provided with a sealing ring that matches the annular groove, with the sealing ring abutting between the annular groove and the bottom of the flange.

[0006] Preferably, the bottom of the annular spray front cover is provided with an annular clearance groove, the side wall of the annular clearance groove is provided with an inclined surface, and the output end of the inclined spray nozzle extends to the inclined surface.

[0007] Preferably, one end of the angled water nozzle is connected to the annular water storage tank by a vertical channel.

[0008] The beneficial effects of this utility model are as follows: This utility model provides a CNC machine tool spindle with a washable tool holder. The water inlet is connected to a water supply pipe, and water is supplied to the inlet through the water supply pipe. The water flows through the inlet and the water channel into an annular water storage tank. The water in the annular water storage tank is sprayed out through various angled spray nozzles and converges at the lower side of the tool mounting hole. During tool changing on the spindle, as the tool holder is inserted into the tool mounting hole of the spindle, the high-pressure water jets sprayed from the angled spray nozzles wash the tool holder, preventing the tool holder with attached metal slag from entering the tool mounting hole, reducing wear on the tool holder and the spindle tool mounting hole, and ensuring machining accuracy. Attached Figure Description

[0009] Figure 1 A schematic diagram illustrating the external structure of this utility model is provided.

[0010] Figure 2 A cross-sectional view of the present invention is shown.

[0011] Figure 3 A schematic diagram illustrating the structure of the annular spray front cover of this utility model is shown.

[0012] Figure 4 This utility model is illustrated. Figure 2 A magnified schematic diagram of part A in the middle.

[0013] The reference numerals in the attached diagram are as follows: Sleeve 1, Cylindrical part 10, Flange part 11, Mandrel 2, Tool hole 20, Ring spray front cover 3, Annular water storage tank 30, Angled spray nozzle 31, Water inlet 32, Water channel 33, Annular groove 34, Annular clearance groove 35, Inclined surface 350, Vertical channel 36, Sealing ring 4. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0015] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0016] refer to Figures 1-4 .

[0017] This utility model provides a CNC machine tool spindle with a washable tool holder, comprising a sleeve 1 and a mandrel 2 disposed in the sleeve 1. One end of the mandrel 2 is provided with a tool mounting hole 20. The sleeve 1 includes a cylindrical part 10 and a flange part 11 connected to one end of the cylindrical part 10. One end of the mandrel 2 is fitted with a ring spray front cover 3 fixedly connected to the bottom of the flange part 11. The top of the ring spray front cover 3 is provided with an annular water storage tank 30. The bottom of the ring spray front cover 3 is provided with oblique water nozzles 31 arranged in a ring array and communicating with the annular water storage tank 30. The side wall of the flange part 11 is provided with a water inlet 32. The bottom of the flange part 11 is provided with a plurality of water channels 33 communicating between one end of the water inlet 32 ​​and the annular water storage tank 30.

[0018] The specific operating principle is as follows: the water inlet 32 ​​is connected to the water supply pipe, and water is supplied to the water inlet 32 ​​through the water supply pipe. The water flows through the water inlet 32 ​​and the water channel 33 into the annular water storage tank 30. The water in the annular water storage tank 30 is sprayed out through each inclined water nozzle 31 and converges to the lower side of the tool mounting hole 20. During spindle tool changing, when the tool holder is inserted into the tool mounting hole 20 of the spindle 2, the high-pressure water jet sprayed by the inclined water nozzle 31 washes the tool holder, preventing the tool holder with metal slag attached from being inserted into the tool mounting hole 20, reducing wear on the tool holder and the spindle tool mounting hole 20, and ensuring machining accuracy. It should be noted that the water inlet 32 ​​can also be connected to the air supply pipe, and high-pressure gas can be used to blow air off the tool holder to remove metal slag attached to the tool holder. Both fall within the protection scope of this utility model.

[0019] Based on the above embodiments, the top of the annular spray front cover 3 is provided with an annular groove 34 that communicates with the annular water storage tank 30. The outer wall of the annular groove 34 is provided with a sealing ring 4 that matches the annular groove 34. The sealing ring 4 abuts between the annular groove 34 and the bottom of the flange 11, which can improve the sealing between the annular spray front cover 3 and the bottom of the flange 11 and prevent water leakage from the gap between the annular spray front cover 3 and the bottom of the flange 11.

[0020] Based on the above embodiments, the bottom of the annular spray front cover 3 is provided with an annular clearance groove 35, and the side wall of the annular clearance groove 35 is provided with an inclined surface 350. The output end of the inclined water nozzle 31 extends to the inclined surface 350, which can increase the area of ​​the output end of the inclined water nozzle 31 without increasing the orifice diameter of the inclined water nozzle 31, thereby increasing the water pressure flowing through the inclined water nozzle 31. This allows the water flowing out from the output end of the inclined water nozzle 31 to spread out in a scattering manner, improving the rinsing effect on the tool handle.

[0021] Based on the above embodiments, a vertical channel 36 is connected between one end of the oblique water nozzle 31 and the annular water storage tank 30. Extending the distance between the annular water storage tank 30 and the oblique water nozzle 31 can increase the pressure of the water column ejected from the oblique water nozzle 31.

[0022] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A CNC machine tool spindle with a washable tool holder, comprising a sleeve and a mandrel disposed within the sleeve, wherein one end of the mandrel is provided with a tool mounting hole, characterized in that, The sleeve includes a cylindrical part and a flange part connected to one end of the cylindrical part. One end of the mandrel is fitted with a ring spray front cover fixedly connected to the bottom of the flange part. The top of the ring spray front cover is provided with an annular water storage tank. The bottom of the ring spray front cover is provided with oblique water nozzles that communicate with the annular water storage tank in a ring array. The side wall of the flange part is provided with a water inlet. The bottom of the flange part is provided with a plurality of water channels that connect one end of the water inlet to the annular water storage tank.

2. The CNC machine tool spindle with a washable tool holder according to claim 1, characterized in that, The top of the annular spray front cover is provided with an annular groove that communicates with the annular water storage tank. The outer wall of the annular groove is provided with a sealing ring that matches the annular groove. The sealing ring abuts between the annular groove and the bottom of the flange.

3. A CNC machine tool spindle with a washable tool holder according to claim 2, characterized in that, The bottom of the annular spray front cover is provided with an annular clearance groove, the side wall of the annular clearance groove is provided with an inclined surface, and the output end of the inclined spray nozzle extends to the inclined surface.

4. A CNC machine tool spindle with a washable tool holder according to claim 3, characterized in that, A vertical channel connects one end of the angled water nozzle to the annular water storage tank.

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