High-pressure inner-cooling turning tool bar with adjustable cutting fluid injection pressure and injection angle

Abstract

The utility model provides a cutting fluid injection pressure and injection angle adjustable high-pressure inner-cooling turning tool bar, which comprises a turning tool bar and a tool bit positioned at one end of the turning tool bar, a turning tool blade is mounted at the front end of the tool bit, cutting fluid is injected into the inner-cooling turning tool bar through a threaded hole at the bottom of the tool bit, the tool bit is provided with two spray nozzles A and B, and the spray nozzles A and B are communicated with the turning tool bar. The spraying pressure of the sprayers can be adjusted through the pressure adjusting screws, the spraying angle of the sprayers can be adjusted through the angle adjusting rods, spraying can be conducted on the front tool face and the cutting chip breaking position of the turning tool blade, the two nozzles are formed in the lower portion of the tool bit, and spraying can be conducted on the main rear tool face and the auxiliary rear tool face of the turning tool blade. The turning tool is used for turning hard-to-cut materials such as titanium-aluminum alloy and the like, and has the advantages of being convenient to disassemble and assemble, high in cooling efficiency, good in chip removal effect, capable of improving the quality of a machined surface, capable of prolonging the service life of the tool and the like.

Description

Technical Field

[0001] The utility model relates to the field of titanium-aluminum alloy cutting and processing, in particular to a high-pressure internally-cooled turning tool bar with adjustable cutting fluid jet pressure and jet angle. Background Art

[0002] In the process of processing difficult-to-cut materials such as titanium-aluminum alloy, turning is a relatively common processing method. However, due to the high hardness, high strength, poor plasticity and low thermal conductivity of titanium-aluminum alloy materials, a large amount of cutting heat is generated during the cutting process, which makes the temperature of the workpiece and the tool relatively high, and easily causes the tool to wear and break, affecting the processing efficiency and increasing the processing cost. Therefore, it is necessary to spray cutting fluid in the cutting area to achieve the effect of reducing the cutting temperature and increasing lubrication.

[0003] During the cutting process of ordinary internally cooled turning tools, the cutting fluid is often only sprayed to the fixed cutting area, and the cutting fluid spray angle cannot be adjusted. For different difficult-to-process materials, the cutting fluid spray angle is adjusted to increase the lubrication of the difficult-to-process material cutting area, reduce the cutting heat and cutting force in the cutting area, and at the same time, the brittleness of the chips can be increased, which can better produce chip breaking effects and avoid the phenomenon of damaging the processed surface due to excessively long chips. The existing technology cannot adjust the cutting fluid spray pressure of the internally cooled turning tool. Adjusting the cutting fluid spray pressure can produce better chip breaking and lubrication effects, simplify the chip cleaning steps, and reduce downtime for chip cleaning. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-pressure internally-cooled turning tool rod with adjustable cutting fluid injection pressure and injection angle. The internally-cooled turning tool rod can simultaneously spray coolant to the turning insert from the front cutting edge, the main back cutting edge, and the secondary back cutting edge, and the injection angle and injection pressure can be adjusted to improve the cooling and processing effects of the internally-cooled turning tool.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-pressure internally cooled turning tool bar with adjustable cutting fluid spray pressure and spray angle comprises a turning tool bar, a tool head and a turning blade. The tool head is provided with a blade mounting groove, an internal cooling channel, a cavity, a locking screw, a nozzle A, a nozzle B, a turning blade and a turning tool gasket. The turning blade is mounted on the tool head by a fastening screw. The tool head is provided with two nozzles, each of which is provided with a nozzle, and cutting fluid can be sprayed on the front cutting edge and the chip breaking position. The spray angle is adjusted by an angle adjustment rod, and the spray pressure is adjusted by a pressure adjustment screw. The lower part of the tool head is provided with nozzles C and nozzles D, and cutting fluid can be sprayed on the main back cutting edge and the secondary back cutting edge of the turning blade. The cutting fluid enters the tool head through a liquid inlet at the bottom of the tool head. The tool head is provided with a cavity and an internal cooling channel so that the cutting fluid can be sprayed into the cutting area.

[0007] Furthermore, the nozzle of the high-pressure internal cooling turning tool rod adjusts the spray angle through an angle adjustment rod, wherein the adjustment range of the spray angle of nozzle A is 42°~72°, and the adjustment range of the spray angle of nozzle B is 6°~36°. The spray angles are all based on the horizontal line as the reference line, and scale values ​​are set at the angle adjustment rod on the tool head and on the angle adjustment rod to accurately adjust the spray angle, and the nozzle is connected to the cavity through a sealing ring.

[0008] Furthermore, the locking screw is used to fix the nozzle on the cutter head so that the nozzle can rotate around the axis.

[0009] Furthermore, both nozzles are fastened with a fixing nut. When the spray angle needs to be adjusted, the fixing nut is loosened and the angle adjustment rod is rotated to appropriately adjust the spray angle. After the spray angle adjustment is completed, the fixing nut is tightened to fix the nozzle.

[0010] Furthermore, the two nozzles can spray together at one place or the two nozzles can spray cutting fluid to different cutting areas according to different processing conditions.

[0011] Furthermore, the injection pressure of the nozzle is adjusted by using a pressure adjustment screw. When the pressure adjustment screw is rotated clockwise, the nozzle is closed, and when it is rotated counterclockwise, the nozzle is opened, thereby achieving an effect of adjustable injection pressure.

[0012] Furthermore, when the pressure adjusting screw is fully tightened, the nozzle will not spray cutting fluid. When it is rotated counterclockwise one circle, the cooling channel in the nozzle is half opened. When it is rotated counterclockwise two circles, the cooling channel in the nozzle is fully opened. There are marks on the pressure adjusting screw on the nozzle and on the pressure adjusting screw to observe whether the pressure adjusting screw is rotated one circle.

[0013] Furthermore, a nozzle C and a nozzle D are provided at the lower part of the tool head. The cutting fluid is sprayed from the nozzle C to cool and lubricate the main back surface of the turning tool, and the cutting fluid is sprayed from the nozzle D to cool and lubricate the secondary back surface of the turning tool.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The internally cooled turning tool provided by the utility model can appropriately adjust the injection angle and injection pressure of the cutting fluid. The injection angle of the cutting fluid can be adjusted by an angle adjustment rod, and the injection pressure of the cutting fluid can be adjusted by a pressure adjustment screw. Two nozzles are arranged on the tool head, which can timely cool and lubricate the front tool face, chip breaking point, cutting edge, main back tool face and secondary back tool face during the cutting process at multiple angles, thereby improving the chip breaking performance of the tool, avoiding the phenomenon of damaging the machined surface due to excessively long chips, and removing chips in time, thereby reducing the frequency of manual chip removal and downtime, ensuring that the cutting fluid fully enters the cutting area, improving the cooling and lubrication effect, reducing tool wear, reducing cutting heat, and reducing cutting force.

[0016] (2) Compared with the traditional internally cooled turning tool, the utility model can adjust the injection pressure of the cutting fluid. According to different processing conditions, the injection pressure can be changed to achieve the best cutting effect. The operation is simple, the production efficiency is improved, the processing accuracy is guaranteed, the tool life is increased, and the enterprise cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structural view of the utility model.

[0018] Figure 2 It is a front view of the utility model.

[0019] Figure 3 It is a top view of the utility model.

[0020] Figure 4 It is a bottom view of the utility model.

[0021] Figure 5 It is a cross-sectional view of the utility model.

[0022] In the figure: 1- turning tool rod, 2- tool head, 3- locking screw, 4- nozzle A, 5- pressure adjustment screw, 6- fastening screw. 7- turning tool, 8- fastening nut, 9- angle adjustment rod, 10- nozzle A, 11- nozzle B, 12- turning tool gasket, 13- nozzle C, 14- nozzle D, 15- liquid inlet, 16- sealing ring, 17- nozzle B. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 5As shown, a high-pressure internally cooled turning tool bar with adjustable cutting fluid injection pressure and injection angle comprises a turning tool bar, a tool head and a turning blade. The turning blade is mounted on the tool head by a fastening screw. Two nozzles are arranged on the tool head, each of which is provided with a nozzle, and cutting fluid can be sprayed on the front cutting edge and the chip breaking position. The injection angle of the nozzle is adjusted by an angle adjustment rod, and the injection pressure is adjusted by a pressure adjustment screw. A nozzle C and a nozzle D are arranged at the bottom of the tool head, and cutting fluid can be sprayed on the main back cutting edge and the secondary back cutting edge of the turning blade. The cutting fluid enters the inner cavity of the tool head through the liquid inlet at the bottom of the tool head. A cavity and an inner cooling channel are arranged inside the tool head so as to spray the cutting fluid into the cutting area.

[0025] The locking screw can fix the nozzle on the cutter head so that the nozzle can rotate around the axis. When the nozzle needs to be replaced, loosen the locking screws on both sides of the nozzle on the cutter head to replace the nozzle. After the replacement is completed, tighten the locking screws to fix the nozzle.

[0026] The spray angle of the nozzle is properly adjusted through the angle adjustment rod. The adjustment range of the spray angle of nozzle A is 42°~72°, and the adjustment range of the spray angle of nozzle B is 6°~36°. There are scale values ​​on the angle adjustment rod and the angle adjustment rod on the cutter head. The angle of the scale value is based on the horizontal reference line for accurate adjustment of the spray angle. The two nozzles can spray together or adjust the spray angle to spray different cutting areas. According to different processing conditions, the nozzle can spray to the front cutting edge, chip breaking area or cutting edge. The nozzle is connected to the cavity inside the cutter head through a sealing ring.

[0027] The spray angle of the nozzle can be appropriately adjusted through the angle adjustment rod. When the spray angle needs to be adjusted, loosen the fastening nut and turn the angle adjustment rod to the corresponding scale to complete the adjustment of the spray angle. After the spray angle is adjusted to the corresponding scale, tighten the fastening nut to fix the nozzle.

[0028] Both nozzle A and nozzle B use a pressure adjustment screw to adjust the injection pressure, wherein the pressure adjustment screw is rotated clockwise to close the nozzle and counterclockwise to open the nozzle, so as to achieve the effect of adjusting the pressure.

[0029] The pressure of the cutting fluid at the nozzle of the nozzle can be adjusted by the pressure adjustment screw. The nozzle is closed when the pressure adjustment screw is rotated clockwise, and the nozzle is opened when it is rotated counterclockwise, so as to adjust the pressure of the cutting fluid injection. The nozzle is closed when the pressure adjustment screw is fully tightened. When it is rotated counterclockwise by one circle, the internal cooling channel of the nozzle is half opened. When it is rotated counterclockwise by two circles, the internal cooling channel of the nozzle is fully opened. There are marks on the pressure adjustment screw on the nozzle and on the pressure adjustment screw. When the pressure adjustment screw is rotated counterclockwise, the pressure adjustment screw is rotated counterclockwise by one or two circles each time the marks overlap.

[0030] The lower part of the tool head is provided with a nozzle C and a nozzle D. During the processing, the nozzle C can spray the cutting fluid to the main back face of the turning tool, and the nozzle D can spray the cutting fluid to the secondary back face of the turning tool for cooling and lubrication.

[0031] High-pressure coolant enters the cavity inside the cutter head from the liquid inlet at the bottom of the cutter head, and the cutting fluid enters the various internal cooling channels from the cavity, and finally sprays toward the processing area from various nozzles.

[0032] The above embodiments are preferred implementations of the present invention and are not intended to limit the present invention. The present invention also has multiple embodiments. Any replacement, modification, and improvement by a person skilled in the art without departing from the technical scope of the present invention are within the protection scope of the present invention.

Claims

1. A high-pressure internal cooling turning tool bar with adjustable cutting fluid injection pressure and injection angle, characterized in that: A high-pressure internally cooled turning tool bar with adjustable cutting fluid spraying pressure and spraying angle comprises: a turning tool bar (1) and a tool head (2); the tool head (2) is provided with a blade mounting groove, an internal cooling channel, a cavity, a locking screw (3), a nozzle A (4), a nozzle B (17), a turning blade (7) and a turning tool gasket (12); the turning blade (7) is mounted on the tool head by means of a fastening screw (6); two nozzles are provided on the tool head, each nozzle having a nozzle, and the cutting fluid can be sprayed onto the front cutting edge and the chip breaking position; the spraying angle of the nozzle can be adjusted by means of an angle adjustment rod (9), and the cutting fluid spraying pressure can be adjusted by means of a pressure adjustment screw (5); a nozzle C (13) and a nozzle D (14) are provided at the lower part of the tool head, and the cutting fluid can be sprayed onto the main back cutting edge and the secondary back cutting edge of the turning blade; the cutting fluid enters the tool head (2) through a liquid inlet (15) at the bottom of the tool head.

2. The high-pressure internal cooling turning tool bar with adjustable cutting fluid injection pressure and injection angle as claimed in claim 1, characterized in that: The nozzle adjusts the cutting fluid spray angle via an angle adjustment rod (9), wherein the spray angle adjustment range of nozzle A (4) is 42° to 72°, and the spray angle adjustment range of nozzle B (17) is 6° to 36°. The angle adjustment rod on the cutter head and the angle adjustment rod (9) are both provided with scales. The nozzle is connected to the cavity via a sealing ring (16), and the cutting fluid enters the cavity and the internal cooling channel via a liquid inlet (15).

3. The high-pressure internal cooling turning tool bar with adjustable cutting fluid injection pressure and injection angle as claimed in claim 2, characterized in that: A fastening nut (8) is provided at the angle adjustment rod (9). The spraying angle of the spray head can be adjusted by loosening the fastening nut (8) and operating the angle adjustment rod (9). After adjusting to a suitable spraying angle, the fastening nut (8) is tightened to fix the spraying angle of the spray head.

4. The high-pressure internal cooling turning tool bar with adjustable cutting fluid injection pressure and injection angle as claimed in claim 1, characterized in that: The nozzle A (4) and the nozzle B (17) both use a pressure regulating screw (5) to adjust the spray pressure, wherein the pressure regulating screw (5) is rotated clockwise to close the nozzle and counterclockwise to open the nozzle, so as to achieve the effect of regulating the pressure.

5. The high-pressure internal cooling turning tool bar with adjustable cutting fluid injection pressure and injection angle as claimed in claim 4, characterized in that: When the pressure regulating screw (5) is fully tightened, the nozzle will not spray cutting fluid. When it is rotated counterclockwise one circle, the cooling channel in the nozzle is half opened. When it is rotated counterclockwise two circles, the cutting fluid channel of the nozzle is fully opened, thereby achieving the effect of regulating the injection pressure. Marks are provided on the pressure regulating screw on the nozzle and on the pressure regulating screw (5) to observe whether the pressure regulating screw has been rotated one circle.

6. The high-pressure internal cooling turning tool bar with adjustable cutting fluid injection pressure and injection angle as claimed in claim 1, characterized in that: The lower part of the tool head (2) is provided with a nozzle C (13) and a nozzle D (14), wherein the nozzle C (13) sprays cutting fluid onto the main back surface of the turning tool, and the nozzle D (14) sprays cutting fluid onto the secondary back surface of the turning tool.

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