Automatic chip breaking numerical control tool

Abstract

The utility model discloses an automatic chip breaking numerical control cutter which comprises a machine shell, a driving motor is arranged in the machine shell, the output end of the driving motor is connected with an adapter shaft, a shaft body of the adapter shaft is rotationally connected with a butt joint hole in the bottom of the machine shell, the lower end of the adapter shaft is connected with a cutter bar, a bar body of the cutter bar is inserted into an air sleeve, and the upper end of the air sleeve is connected with the bottom face of the machine shell. An air channel annularly formed in the air sleeve communicates with an air inlet mechanism on the machine shell, and an output port of the air channel faces the head of the cutter bar; according to the device, the rotating cutter bar can be controlled through the driving motor to machine materials, in the machining process, high-pressure gas is jetted to the head of the cutter bar through the gas channel in the gas sleeve, cut strip-shaped metal wires are blown off while the cutter bar is cooled, and the metal wires are prevented from being wound on the cutter bar to affect subsequent machining operation.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing equipment, in particular to an automatic chip-breaking numerical control tool. Background Art

[0002] CNC machine tools are automated equipment equipped with a program control system. They can control the tool movements on the machine tools through control signals sent by the CNC device, so as to process various complex, precise, small-batch, and multi-variety parts according to the requirements of the drawings. They are typical mechatronics products. When using CNC machine tools to process blanks, the tool is likely to produce strip-shaped metal wires on the outside of the blanks. These are waste chips cut off from the blanks, and they are very easy to be entangled into coils, which will affect the tool and eventually reduce the machining accuracy of the workpiece. The use of air blowing to blow off the metal wire can partially solve this problem. However, the traditional air blowing mechanism is only arranged on one side of the tool, which has a dead angle and affects the movement of the tool. A new device is needed to solve the above problems. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes an automatic chip breaking CNC tool, including a casing, a driving motor built in the casing, the output end of the driving motor is connected to an adapter shaft, the adapter shaft body is rotatably connected to the docking hole at the bottom of the casing, the lower end of the adapter shaft is connected to a tool rod, the tool rod body is inserted into an air sleeve, the upper end of the air sleeve is connected to the bottom surface of the casing, an air duct arranged in an inner ring of the air sleeve is connected to an air intake mechanism on the casing, and the air duct output port faces the head of the tool rod.

[0004] Furthermore, the air intake mechanism includes a rotary air valve, the input end of the rotary air valve is connected to the external air circuit through an air supply hose, the output end of the rotary air valve is connected to the air ring cavity in the casing, and each branch pipe at the bottom of the air ring cavity is connected to the upper end of the corresponding air duct.

[0005] Furthermore, a threaded seat ring is provided at the center of the top flange of the air sleeve, the threaded seat ring is threadedly connected to the docking hole, a sealing ring is provided on the outer side of the fitting surface of the flange and the casing, the knife rod body is inserted into the central axis hole of the air sleeve, the airway is evenly arranged in the vertebral ring body of the air sleeve, and the bypass outlet of the airway is opened on the inner side of the vertebral ring body.

[0006] Furthermore, the screw section at the upper end of the cutter rod is threadedly connected to the connecting hole on the bottom surface of the adapter shaft. When the screw section is completely screwed into the connecting hole, the latch hole on the screw section is aligned with the latch hole on the adapter shaft, and the retaining pin is inserted into the latch hole for fixing.

[0007] Furthermore, a liquid injection channel connected to the docking hole is provided on the side of the casing, and a boss at the inlet end of the liquid injection channel is connected to a rotary liquid valve, and the rotary liquid valve is connected to an external water circuit through a cooling hose.

[0008] Furthermore, the top opening of the casing is connected to the casing cover by bolts, the casing body is provided with a plurality of heat sinks, and the ear seat on the back side of the casing is connected to the rotating arm of the machine tool.

[0009] The beneficial effects of the present utility model are as follows: The utility model can process materials by a rotating tool bar controlled by a driving motor. During the processing, high-pressure gas is sprayed onto the head of the tool bar through the air passage in the air sleeve. While cooling the tool bar, it blows off the cut strip-shaped metal wire to prevent the metal wire from being wound around the tool bar and affecting the subsequent processing operation. The device can also inject cooling liquid through the liquid injection channel to further reduce the temperature of the tool bar, so that the tool can operate continuously. Description of the Drawings

[0010] Figure 1 is the front view structural sectional view of the present utility model;

[0011] Figure 2 is Figure 1 the partial enlarged view of area A in

[0012] Figure 3 is the side view structural schematic diagram of the present utility model;

[0013] Figure 4 is the sectional view of the machine shell of the present utility model at the air ring cavity.

[0014] The description of the reference numerals in the drawings is as follows: 1. Machine shell; 101. Docking hole; 102. Air ring cavity; 103. Branch pipe; 104. Liquid injection channel; 105. Heat sink; 106. Ear seat; 2. Driving motor; 3. Adapter shaft; 301. Connecting hole; 4. Tool bar; 401. Screw rod section; 5. Air sleeve; 501. Air passage; 502. Flange; 503. Threaded seat ring; 504. Central shaft hole; 505. Bypass; 6. Rotary air valve; 7. Air delivery hose; 8. Sealing ring; 9. Anti-back-off pin; 10. Rotary liquid valve; 11. Cooling hose; 12. Shell cover. Detailed Embodiments

[0015] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] The following further describes the present utility model in conjunction with the accompanying drawings of the specification:

[0018] As Figures 1 to 4 shown, an automatic chip-breaking numerical control tool includes a machine shell 1. The top of the machine shell 1 is open and is connected to a shell cover 12 by bolts. A plurality of heat sinks 105 are provided on the body of the machine shell 1. An ear seat 106 on the back side of the machine shell 1 is connected to a rotating arm of a machine tool. A driving motor 2 is built in the machine shell 1. The output end of the driving motor 2 is connected to a transfer shaft 3. The shaft body of the transfer shaft 3 is rotatably connected to a docking hole 101 at the bottom of the machine shell 1. A threaded connection hole 301 on the bottom surface of the transfer shaft 3 is threadedly connected to the upper screw section 401 of a tool shank 4. When the screw section 401 is completely screwed into the connection hole 301, the pin holes on the screw section 401 are aligned with the pin holes on the transfer shaft 3, and a retaining pin 9 is inserted into the pin holes for fixation.

[0019] In this embodiment, the tool shank 4 is inserted into the central hole 504 of an air sleeve 5. A threaded seat ring 503 is provided at the center of the flange 502 at the top of the air sleeve 5. The threaded seat ring 503 is threadedly connected to the docking hole 101. A sealing ring 8 is provided on the outer side of the joint surface between the flange 502 and the machine shell 1. Air channels 501 are evenly arranged in the conical ring body of the air sleeve 5. The output ports of the air channels 501 face the head of the tool shank 4. The outlet of a bypass 505 of the air channels 501 is opened on the inner side surface of the conical ring body. The input ports of the air channels 501 are connected to an air intake mechanism on the machine shell 1.

[0020] In this embodiment, the air intake mechanism includes a rotary air valve 6. The input end of the rotary air valve 6 is connected to an external air path through an air delivery hose 7. The output end of the rotary air valve 6 is connected to an air ring cavity 102 inside the machine shell 1. Each branch pipe 103 at the bottom of the air ring cavity 102 is docked with the upper input port of the corresponding air channel 501. A liquid injection channel 104 communicating with the docking hole 101 is provided on the side surface of the machine shell 1. The boss at the inlet end of the liquid injection channel 104 is connected to a rotary liquid valve 10. The rotary liquid valve 10 is connected to an external water path through a cooling hose 11.

[0021] The working principle of the present utility model is as follows:

[0022] Connect the machine housing 1 to the machine tool through the ear seat 106, start the drive motor 2 to drive the tool bar 4 to rotate. Under the control of the numerical control machine tool, the head of the tool bar 4 performs cutting operations on the blank. During the operation, turn on the rotary air valve 6. The high-pressure gas pumped out by the external air circuit enters the air ring cavity 102, and then is distributed to the corresponding air channels 501 through each branch pipe 103 and sprayed onto the body of the tool bar 4 from all directions, without blowing dead corners. While reducing the temperature of the body, it blows off the strip-shaped metal wire and can prevent various chips from affecting the tool bar 4. At the same time, the rotary liquid valve 10 can be turned on, and the coolant is pumped in from the docking hole 101. The coolant flows vertically downward along the body of the tool bar 4, taking away the excess temperature and increasing the working duration of the tool.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An automatic chip-breaking numerical control tool, comprising a machine housing (1), characterized in that: The housing (1) houses a drive motor (2). The output end of the drive motor (2) is connected to a transfer shaft (3). The shaft body of the transfer shaft (3) is rotatably connected to the docking hole (101) at the bottom of the housing (1). The lower end of the transfer shaft (3) is connected to a tool bar (4). The shaft body of the tool bar (4) is inserted into an air sleeve (5). The upper end of the air sleeve (5) is connected to the bottom surface of the housing (1). The air passage (501) provided in the inner ring of the air sleeve (5) communicates with the air intake mechanism on the housing (1). The outlet of the air passage (501) faces the head of the tool bar (4).

2. The automatic chip-breaking numerical control tool according to claim 1, wherein: The air intake mechanism includes a rotary air valve (6). The input end of the rotary air valve (6) is connected to an external air path through an air delivery hose (7). The output end of the rotary air valve (6) communicates with an air ring cavity (102) inside the housing (1). Each branch pipe (103) at the bottom of the air ring cavity (102) is docked with the upper end of the corresponding air passage (501).

3. An automatic chip-breaking numerical control tool according to claim 1, wherein: A threaded seat ring (503) is provided at the center of the top flange (502) of the air sleeve (5). The threaded seat ring (503) is threadedly connected to the docking hole (101). A sealing ring (8) is provided on the outer side of the joint surface between the flange (502) and the housing (1). The shaft body of the tool bar (4) is inserted into the central shaft hole (504) of the air sleeve (5). The air passage (501) is evenly arranged in the conical ring body of the air sleeve (5). The outlet of the bypass (505) of the air passage (501) is opened on the inner side surface of the conical ring body.

4. The automatic chip-breaking numerical control tool according to claim 1, wherein: The upper end screw rod section (401) of the tool bar (4) is threadedly connected to the connection hole (301) on the bottom surface of the transfer shaft (3). When the screw rod section (401) is fully screwed into the connection hole (301), the pin holes on the screw rod section (401) are aligned with the pin holes on the transfer shaft (3). A retaining pin (9) is inserted into the pin holes for fixation.

5. An automatic chip-breaking numerical control tool according to claim 1, characterized in that: A liquid injection channel (104) communicating with the docking hole (101) is provided on the side of the housing (1). The convex platform at the inlet end of the liquid injection channel (104) is connected to a rotary liquid valve (10). The rotary liquid valve (10) is connected to an external water path through a cooling hose (11).

6. An automatic chip-breaking numerical control tool according to claim 1, characterized in that: The top open end of the housing (1) is bolted to a housing cover (12). A number of heat sinks (105) are provided on the housing body of the housing (1). The ear seat (106) on the back side of the housing (1) is connected to the rotating arm of the machine tool.

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