Pipe nozzle sealing conical surface machining tool

Abstract

The invention relates to the technical field of machining tools, and discloses a nozzle sealing conical surface machining tool which comprises a tool body, two oppositely-arranged mounting grooves are formed in the tool body, and the mounting grooves are used for containing sliding tool aprons and discharging sweeps when alloy blades work. The sliding tool apron is assembled with the alloy blade; an inclined face is arranged at one end of the sliding tool apron, the end of the cutting edge height adjusting bolt makes contact with the inclined face at one end of the sliding tool apron, and the sliding tool apron is driven to slide on the installation groove in the axial direction by screwing the cutting edge height adjusting bolt. The tool has the beneficial effects that the machining limitation is smaller, the tool is used for a machining center, and compared with traditional turning machining, pipe nozzles in various directions can be machined; the machining effect is better, the height of the cutting edge can be adjusted, and better machining precision and surface quality can be guaranteed; and a series of sliding tool aprons are manufactured according to conical surfaces with different angles, and cutting parts with various angles can be rapidly replaced.

Description

Technical Field

[0001] The invention relates to the technical field of machining tools, in particular to a nozzle sealing cone surface machining tool. Background Art

[0002] With the continuous innovation and development of modern military manufacturing industry, the precision of parts processing is getting higher and higher. Among the processing features of hydraulic product parts, sealed nozzles are a common structure. Affected by the machining process, nozzles are often connected to the main body in various forms such as welding, fasteners and seals. Since hydraulic products have to withstand environmental conditions such as high pressure, there are more and more restrictions on the installation position of the nozzle, and the processing accuracy requirements are getting higher and higher. With the randomness and diversification of the nozzle processing position, the disadvantages of the traditional lathe processing process are gradually emerging. Turning processing is often limited by factors such as the part's rotation diameter, nozzle orientation, feed space, clamping conditions, etc., and has great limitations.

[0003] Conical seal is a sealing method that uses the pressure between conical surfaces to produce elastic deformation to form a closed contact ring. The roughness and contour of the contact surface have a great influence on the sealing performance of the nozzle. In particular, the surface roughness has the greatest impact on the sealing performance. If the roughness does not meet the requirements, it will cause oil leakage at the connection. Because the processing space of some nozzles is not open enough, the accessibility of the processing tools is also one of the difficulties. However, there are no suitable processing methods and tools in the market and industry. Summary of the invention

[0004] The purpose of the present invention is to provide a tool for machining a nozzle sealing cone surface, so as to solve the problems that machining the nozzle sealing cone surface with existing tools is difficult and the cost is low.

[0005] The present invention is realized through the following technical scheme: a nozzle sealing cone surface processing tool, comprising a tool body, an alloy blade, and also comprising a cutting edge height adjustment bolt, a sliding tool seat, a tool seat locking screw, and a blade locking screw; the tool body is provided with two mounting grooves arranged opposite to each other, and a threaded hole is provided on the mounting groove, and the mounting groove is used to place the sliding tool seat, and is also used to discharge waste chips when the alloy blade is working; the sliding tool seat is provided with a notch, and the tool seat locking screw is inserted through the notch on the sliding tool seat and assembled with the threaded hole on the mounting groove, so that the sliding tool seat is installed on the mounting groove; the sliding tool seat is provided with a matching tool groove, and the matching tool groove is provided on the sliding tool seat. The shape of the knife groove matches the contour of the alloy blade, and a threaded hole is opened on the knife groove. The blade locking screw is inserted through the through hole set on the alloy blade and assembled with the threaded hole on the knife groove; the blades of the two alloy blades are in the same plane and are distributed in a circular array about the axis of the knife body; the sliding knife seat is provided with a bevel at the end away from the alloy blade, and the knife body is also provided with two adjustment threaded holes, and the cutting edge height adjustment bolt is assembled through the adjustment threaded hole, and the end of the cutting edge height adjustment bolt contacts the bevel at one end of the sliding knife seat, and the sliding knife seat is driven to slide axially on the mounting groove through the slider by turning the cutting edge height adjustment bolt.

[0006] In order to better implement the present invention, further, the depth of the tool groove is consistent with the thickness of the alloy blade, that is, the alloy blade and one side surface of the sliding blade seat are in the same plane.

[0007] In order to better implement the present invention, further, the through hole on the alloy blade and the notch on the sliding knife seat are both provided with stepped grooves, so that one end of the blade locking screw and the knife seat locking screw can be flush with the alloy blade and the side of the sliding knife seat; and the blade locking screw and the knife seat locking screw are both hexagon socket screws.

[0008] In order to better implement the present invention, further, the tool body material is Cr5Mn, and the heat treatment hardness is HRC66-69.

[0009] In order to better realize the present invention, further, the tool body and the sliding tool holder are matched through a sliding block, and the grinding gap is 0.008mm to 0.015mm.

[0010] In order to better implement the present invention, further, the difference in cutting edge height between the two alloy blades is less than 0.01 mm.

[0011] Compared with the prior art, the present invention has the following advantages and beneficial effects: (1) The present invention has fewer processing limitations: the tool is used in a machining center and can process nozzles in various directions compared to traditional lathe processing; (2) Better processing effect: The cutting edge height can be adjusted to ensure better processing accuracy and surface quality; (3) Versatile and quick-change: A series of sliding tool holders are made for cones of different angles, which can quickly replace cutting parts of various angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is an exploded view of the overall structure of the present invention.

[0014] Figure 3 It is a schematic diagram of the structure of the shell parts being processed.

[0015] Figure 4 It is a cross-sectional view of the structure of the processed shell part.

[0016] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0017] Figure 6 This is the processing effect diagram.

[0018] Among them: 1- knife body; 2- cutting edge height adjustment bolt; 3- sliding knife seat; 4- alloy blade; 5- knife seat locking screw; 6- blade locking screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Embodiment 1: This embodiment provides a nozzle sealing cone surface machining tool, specifically, Figure 1-Figure 2As shown, it includes a knife body 1, an alloy blade 4, a cutting edge height adjustment bolt 2, a sliding knife seat 3, a knife seat locking screw 5, and a blade locking screw 6. The knife body 1 is provided with two mounting grooves arranged opposite to each other, and a threaded hole is provided on the mounting groove. The mounting groove is used to place the sliding knife seat 3 and is also used to discharge waste chips when the alloy blade 4 is working; the sliding knife seat 3 is provided with a notch, and the knife seat locking screw 5 is inserted through the notch on the sliding knife seat 3 and assembled with the threaded hole on the mounting groove, so as to install the sliding knife seat 3 on the mounting Groove; a matching knife groove is arranged on the sliding knife seat 3, and the shape of the matching knife groove matches the contour of the alloy blade 4, and a threaded hole is opened on the matching knife groove, and the blade locking screw 6 is inserted through the through hole arranged on the alloy blade 4 and assembled with the threaded hole on the matching knife groove; the blades of the two alloy blades 4 are in the same plane and are distributed in a circular array about the axis of the knife body 1; an inclined surface is arranged at one end of the sliding knife seat 3 away from the alloy blade 4, and two adjusting threaded holes are also arranged on the knife body 1, and the angle between the adjusting threaded hole and the axis of the knife body 1 is 30°-60°, and the cutting edge height adjustment bolt 2 is assembled through the adjusting threaded hole, and the end of the cutting edge height adjustment bolt 2 contacts the inclined surface at one end of the sliding knife seat 3, and the sliding knife seat 3 is driven to slide axially on the mounting groove through the slider by turning the cutting edge height adjustment bolt 2.

[0022] The present invention can process nozzle taper surfaces with diameters of φ4mm-φ30mm, taper of 1:0.4-1:1, and high requirements for roundness, cylindricity, and other form and position tolerances and roughness. Figure 3-Figure 5 As shown in the figure, the part needs to be machined with a nozzle cone surface with a diameter of φ14.5mm and an angle of 74°, ensuring that the cone surface roughness is less than Ra0.8 and the roundness is less than 0.01.

[0023] Different sliding tool seats 3 are provided with different tool groove deflection angles, so as to adjust the cutting edge angle of the alloy blade 4 to adapt to different taper processing. Before processing, first select a suitable sliding tool seat 3 according to the processing requirements of the part, and then install the sliding tool seat 3 in the installation groove on the tool body 1, and then insert the tool seat locking screw 5 through the sliding tool seat 3 and assemble it with the tool body 1. At this time, the tool seat locking screw 5 will not be completely tightened, and the sliding tool seat 3 can still slide on the tool body 1; then place the alloy blade 4 in the tool groove on the sliding tool seat 3, and then use the blade locking screw 6 to fix the alloy blade 4 on the sliding tool seat 3; then clamp the tool body 1 on the tool handle of the machining center and install it on the machine tool spindle; finally, turn the cutting edge height adjustment bolt 2 by dialing to adjust the cutting edge height of the two alloy blades 4, and then tighten the tool seat locking screw 5. At this time, the sliding tool seat 3 is completely fixed on the tool body 1, and the adjustment is completed. After that, the part can be processed. The effect after processing is as follows Figure 6 shown.

[0024] Compared with lathe processing, the present invention can effectively reduce the difficulty of clamping, avoid frequent alignment, ensure that the tool and the parts are evenly stressed during the processing, prevent the occurrence of vibration, and improve the surface processing quality of the parts.

[0025] Embodiment 2: This embodiment is further expanded on the basis of the above embodiment. Figure 2 As shown, the depth of the blade groove is consistent with the thickness of the alloy blade 4, that is, the alloy blade 4 and one side of the sliding blade seat 3 are in the same plane.

[0026] The through hole on the alloy blade 4 and the notch on the sliding knife seat 3 are both provided with stepped grooves, so that one end of the blade locking screw 6 and the knife seat locking screw 5 can be flush with the side of the alloy blade 4 and the sliding knife seat 3; and the blade locking screw 6 and the knife seat locking screw 5 are both hexagon socket screws.

[0027] Through the above arrangement, the tool can prevent waste chips from getting stuck during processing, so that the waste chips can be discharged better.

[0028] The other parts of this embodiment are the same as those of the above embodiment and will not be described in detail.

[0029] Embodiment 3: This embodiment is further expanded on the basis of the above embodiment. The material of the blade body 1 is Cr5Mn, and the heat treatment hardness is HRC66-69 to ensure that it has sufficient rigidity and strength.

[0030] The knife body 1 and the sliding knife seat 3 are matched through a slider, and the grinding gap is 0.008mm-0.015mm to ensure the accuracy of the angle 4.

[0031] The difference in cutting edge height between the two alloy blades 4 is less than 0.01 mm to ensure that the cutting edge heights on both sides are consistent, thereby suppressing vibration caused by uneven force.

[0032] The other parts of this embodiment are the same as those of the above embodiment and will not be described in detail.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A nozzle sealing cone surface machining tool, comprising a tool body (1) and an alloy blade (4), characterized in that: It also includes a cutting edge height adjustment bolt (2), a sliding knife seat (3), a knife seat locking screw (5), and a blade locking screw (6); the knife body (1) is provided with two mounting grooves arranged opposite to each other, and a threaded hole is provided on the mounting groove, the mounting groove is used to place the sliding knife seat (3), and is also used to discharge waste chips when the alloy blade (4) is working; the sliding knife seat (3) is provided with a slot, the knife seat locking screw (5) is inserted through the slot on the sliding knife seat (3) and assembled with the threaded hole on the mounting groove, so that the sliding knife seat (3) is installed on the mounting groove; the sliding knife seat (3) is provided with a matching knife groove, the shape of the matching knife groove matches the contour of the alloy blade (4), a threaded hole is provided on the matching knife groove, and the blade locking screw (6) is inserted through the through hole provided on the alloy blade (4) and assembled with the threaded hole on the matching knife groove; the blades of the two alloy blades (4) are in the same plane and are distributed in a circular array about the axis of the knife body (1); The end of the sliding knife seat (3) away from the alloy blade (4) is provided with an inclined surface, and the knife body (1) is also provided with two adjustment threaded holes, and the cutting edge height adjustment bolt (2) is installed through the adjustment threaded holes, and the end of the cutting edge height adjustment bolt (2) contacts the inclined surface at one end of the sliding knife seat (3), and by turning the cutting edge height adjustment bolt (2), the sliding knife seat (3) is driven to slide axially on the mounting groove through the slider.

2. A nozzle sealing cone surface machining tool according to claim 1, characterized in that: The depth of the blade groove is consistent with the thickness of the alloy blade (4), that is, the alloy blade (4) and one side surface of the sliding blade seat (3) are in the same plane.

3. The nozzle sealing cone surface machining tool according to claim 1, characterized in that: The through hole on the alloy blade (4) and the notch on the sliding blade seat (3) are both provided with stepped grooves, so that one end of the blade locking screw (6) and the blade seat locking screw (5) can be flush with the side of the alloy blade (4) and the sliding blade seat (3); and the blade locking screw (6) and the blade seat locking screw (5) are both hexagon socket screws.

4. The nozzle sealing cone surface machining tool according to claim 1, characterized in that: The material of the blade body (1) is Cr5Mn, and the heat treatment hardness is HRC66-69.

5. The nozzle sealing cone surface machining tool according to claim 1, characterized in that: The knife body (1) and the sliding knife seat (3) are matched via a sliding block, and the grinding gap is 0.008 mm to 0.015 mm.

6. The nozzle sealing cone surface machining tool according to claim 1, characterized in that: The difference in cutting edge height between the two alloy blades (4) is less than 0.01 mm.

Images