CN218656985U

CN218656985U - Composite forming milling cutter suitable for hydraulic motor oil port machining

Info

Publication number: CN218656985U
Application number: CN202223080161.5U
Authority: CN
Inventors: 汤咸贵; 翟勇
Original assignee: Hengyu Rongchuang Cutting Technology Suzhou Co ltd
Current assignee: Hengyu Rongchuang Cutting Technology Suzhou Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-21
Anticipated expiration: 2032-11-21

Abstract

The utility model relates to a compound shaping milling cutter suitable for processing of hydraulic motor hydraulic fluid port, including the cutting edge section, the clearance section that is connected with the cutting edge section and the centre gripping handle section that links to each other with the clearance section, set up the interval in the cutting edge section and be helical structure's chip groove, adjacent just be equipped with the cutting edge that is helical structure between the chip groove on the cutting edge section, the front end of cutting edge is equipped with the first cutting part that is used for milling product counter sink, is equipped with the second cutting part that is used for milling the sealed face of product shaping on the cutting edge, first cutting part links to each other with the second cutting part, and the head end diameter of second cutting part is greater than the diameter of first cutting part, and the tail end diameter of second cutting part is less than the diameter of product trompil, and when the sealed face of product is milled to the second cutting part, is equipped with the interval between the side of first cutting part and the inner wall of the trompil of product. The utility model discloses can improve the quality of product.

Description

Composite forming milling cutter suitable for hydraulic motor oil port machining

Technical Field

The utility model relates to a milling cutter especially relates to a composite forming milling cutter suitable for hydraulic motor hydraulic fluid port processing.

Background

The hydraulic motor is widely applied to heavy machinery such as engineering machinery, ship machinery, construction machinery, mining machinery and the like. An oil port of the hydraulic motor is an important port for connection and transmission of hydraulic media, and sealing and leakage-free under rated high pressure are required to be guaranteed; therefore, the machining quality of the oil port is of great importance to the operation safety and performance of the hydraulic system; the basic pattern of the oil port is shown in fig. 1, and the basic characteristics and requirements of the oil port are as follows: the size is big to guarantee joint strength, and the sealed face surface quality of shaping requires highly, guarantees sealed stability no leakage: at present, the commonly adopted process and tools for machining the oil port comprise 1. Drilling and forming a stepped pre-hole (shown in figure 2) and 2. Reaming and forming a sealing surface (shown in figure 3).

Through retrieval, the patent: a milling cutter structure (201921048503.0) comprising a cutter body and a plurality of cutter teeth arranged about an axis of the cutter body, the cutter teeth comprising first cutter teeth and second cutter teeth arranged alternately about the axis of the cutter body; the rake faces of the first cutter tooth and the second cutter tooth form included angles with the axis of the cutter body; the edge of the front part of the front cutter face of the first cutter tooth and the edge of the rear part of the front cutter face of the second cutter tooth are positioned on the same side, and the edge of the rear part of the front cutter face of the first cutter tooth and the edge of the front part of the front cutter face of the second cutter tooth are positioned on the same side. The utility model provides a milling cutter structure, the resistance that the sword tooth received when the milling flutes is little, can adopt faster rotational speed and great single milling flutes width to improve milling flutes efficiency.

Due to the fact that the oil port is large in size and the corresponding drilling and reaming cutter is large in size and can cut a plurality of parts at one time, vibration is easily generated in machining by the aid of the drilling and reaming process, vibration lines are formed on the surface, and machining size and surface quality are not qualified; the problems are particularly outstanding under the working conditions that the rigidity of the tool clamp is insufficient and the rigidity power of the machine tool is insufficient. Due to the above problems, the process generally adopts low-speed machining to reduce vibration (rotating speed S: 300-600/feeding F: 50-100), the machining efficiency is low, the machining quality is unstable, the size of the cutter is large, the cutter cost cannot be commonly used, and the machining cost is high.

In view of the above-mentioned defects, the present designer actively makes research and innovation to create a composite milling cutter with a novel structure suitable for machining the hydraulic motor oil port, so that the composite milling cutter has industrial utilization value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a compound shaping milling cutter suitable for hydraulic motor hydraulic fluid port processing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the composite forming milling cutter comprises a cutting edge section, a clearance section and a clamping handle section, wherein the clearance section is connected with the cutting edge section, the clamping handle section is connected with the clearance section, chip grooves which are in a spiral structure at intervals are formed in the cutting edge section, adjacent chip grooves are formed between the chip grooves and are provided with cutting edges which are in a spiral structure, the cutting edges are arranged in synchronization with the spiral structure of the chip grooves, the front end of each cutting edge is provided with a first edge part for milling a product countersunk hole, the length of each first edge part is larger than the depth of the countersunk hole, the diameter of each first edge part is smaller than the diameter of a product opening, each cutting edge is provided with a second edge part for milling a product forming sealing surface, the tail end of each first edge part is connected with the head end of each second edge part, a finishing edge strip is arranged on the rear face of each cutting edge part, the finishing edge strip extends to the tail end of each second edge part from the head end of each first edge part, the diameter of each cutting edge part of each second edge part is gradually increased from the head end to the tail end of each second edge part and is larger than the diameter of each second edge part, and the product opening is 0.5 mm, and the product width is smaller than the product opening distance from the product cutting edge part of the product.

Preferably, the composite forming milling cutter suitable for hydraulic motor oil port machining is characterized in that: the width of the smoothing margin is 0.03 mm to 0.25 mm.

Preferably, the compound-formed milling cutter suitable for machining the hydraulic motor oil port is characterized in that the smoothing cutting edge is of an inclined structure, and the angle of the smoothing cutting edge is 1-5 degrees.

Preferably, the diameter of the first blade part of the composite milling cutter is 5 mm to 16 mm.

Preferably, the diameter of the second blade part is 12 mm to 32 mm, and the composite formed milling cutter is suitable for hydraulic motor oil port machining.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. the utility model discloses in all be one-to-one processing mode to its cutter of current processing mode, and the utility model discloses a milling cutter can be to the processing of different diameters to reach reduce cost's purpose.

2. The utility model discloses a constitute the compound fashioned milling cutter of two unifications with counter bore and shaping seal, to hydraulic motor hydraulic fluid port processing, make cutter configuration cost and processing cost minimizing, restrain the vibration that processing produced through the smoothing sword simultaneously, improve processing quality stability and controllability.

The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a hydraulic motor oil port;

FIG. 2 is a schematic view of a drill-forming stepped pre-hole configuration;

FIG. 3 is a schematic view of a hinge-forming seal face configuration;

fig. 4 is a schematic structural diagram of the present invention;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is an enlarged partial view of FIG. 5;

FIG. 7 is a left side view of FIG. 5;

FIG. 8 is a schematic structural view of the main hole machining device of the present invention;

fig. 9 is a schematic structural view of the countersunk hole processing of the present invention;

fig. 10 is a schematic structural view of the machined sealing surface of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or vertical, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

It should be noted in fig. 1 that these data parameters (countersink diameter, formed seal face, and R-angle) are all the range of product processing that can be performed, and are conventional technical processing parameters known to those skilled in the art.

Examples

As shown in fig. 4 to 7, a composite forming milling cutter suitable for hydraulic motor hydraulic fluid port processing, including cutting edge section 1, the clearance section 2 that is connected with cutting edge section 1 and the centre gripping handle section that links to each other with the clearance section, set up the interval and be helical structure's chip groove 3 on the cutting edge section 1, it is adjacent between the chip groove 3 and be equipped with the cutting edge 4 that is helical structure on cutting edge section 1, cutting edge 4 sets up with the helical structure of chip groove 3 in step, the front end of cutting edge 4 is equipped with the first cutting edge 5 that is used for milling the product counter sink, the length of first cutting edge 5 is greater than the depth of counter sink, the diameter of first cutting edge 5 is less than the diameter of product trompil, be equipped with the second cutting edge 6 that is used for milling the sealed face of product shaping on cutting edge 4, the afterbody of first cutting edge 5 links to the head end of second cutting edge 6, be equipped with the finishing edge area 7 on the back of cutting edge 4, finishing edge area 7 extends to the tail end of second cutting edge from first cutting edge 5, the tail end of second cutting edge 6 is from the tail end of second cutting edge 6 that is the slope and is equipped with the clearance of first cutting edge 5, the product is less than the diameter of first cutting edge 5, the product, the clearance of first cutting edge 5 a is less than the head end 0.0 mm, the product is less than the product diameter of the product, the product side width of the diameter of the first cutting edge 5, the head end, the product is less than the diameter of the product, the head end a width of the product, the product.

The utility model discloses in the width 0.03 millimeter to 0.25 millimeter of smoothing margin 7, the utility model discloses a width of 0.1 millimeter, smoothing margin 7 is the slope structure, and its angle is 1 to 5, and the relief angle of smoothing margin 7 is 2 simultaneously.

The utility model discloses in first cutting part 5 diameter is 5 millimeters to 16 millimeters, the 12 millimeters to 32 millimeters of diameter of second cutting part 6, the diameter selection of first cutting part 5 and second cutting part 6 is responded to mutually, also can carry out corresponding modification according to the demand of product simultaneously, and the adjustment of different diameters is realized through the digit control machine tool to the modification, and the operation of digit control machine tool is the conventional art that technical staff in the field knows, does not do any unnecessary perplexing.

The utility model discloses in when the sealed face of product is milled to second cutting part 6, be equipped with the interval between the side of first cutting part 5 and the inner wall of the trompil of product, its interval width is at 0.1 millimeter to 0.5 millimeter, can ensure when milling the sealed face, can not take place the interference condition, ensures the quality of processing.

The utility model provides a spacing of chip groove is the not equidistant structure, and angle alpha between them, beta, theta and delta all are about 90, are in the angle and vary, see figure 7, and the vibration of adding man-hour can be restrained to the recombination smoothing margin structure, ensures the quality of processing.

Because the sealed face of shaping of product need reach Ra1.6 surface requirement in figure 1 the utility model discloses in can realize the precision to its processing through the smoothing margin to ensure that the phenomenon of oil leakage or oil leak can not appear when the sealing washer is installed to the hydraulic fluid port in this position department.

The working principle of the utility model is as follows:

as shown in fig. 8, turning the main hole of the hydraulic motor oil port by using a standard drill is known in the prior art and is not described in any detail, after the product 8 is turned by a machine tool and a milling cutter is replaced, as shown in fig. 9, the periphery of the main hole of the product is milled circularly, and after the countersunk hole is processed by the first edge part, as shown in fig. 10, the milling processing of the sealing surface of the product is realized by the second edge part.

The machining treatment is controlled by a numerical control machine tool, so that oil ports with different diameters can be commonly used by the composite forming milling cutter as long as the angles and the heights of the formed sealing surfaces are the same, and the configuration cost of the cutter is reduced to the lowest.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a compound shaping milling cutter suitable for processing of hydraulic motor hydraulic fluid port, includes cutting edge section (1), keeps away sky section (2) and the centre gripping handle section that links to each other with keeping away the sky section that is connected with cutting edge section (1), set up interval and chip groove (3) that are helical structure on cutting edge section (1), it is adjacent just be equipped with cutting edge (4) that are helical structure between chip groove (3) on cutting edge section (1), cutting edge (4) set up its characterized in that with the helical structure of chip groove (3) in step: the front end of cutting edge (4) is equipped with first cutting part (5) that are used for milling the product counter sink, the length of first cutting part (5) is greater than the degree of depth of counter sink, the diameter of first cutting part (5) is less than the diameter of product trompil, be equipped with second cutting part (6) that are used for milling the sealed face of product shaping on cutting edge (4), the afterbody of first cutting part (5) links to each other with the head end of second cutting part (6), be equipped with smoothing margin (7) on the back knife face of cutting edge (4), smoothing margin (7) extend to the tail end of second cutting part from the head end of first cutting part (5), the diameter of the cutting edge of second cutting part (6) is the grow gradually and is a slope structure from the head end to the tail end, the head end diameter of second cutting part (6) is greater than the diameter of first cutting part (5), and the tail end diameter of second cutting part (6) is less than the diameter of product trompil simultaneously, and when the sealing surface of second cutting part (6) product, the side of first cutting part (5) and the product be equipped with the inner wall between the trompil of product the width of milling cutter, the width of trompil is 0.0.0.0.0 millimeter to the interval, and is 0 millimeter to the width of trompil.

2. The milling cutter as claimed in claim 1, wherein the milling cutter comprises: the width of the smoothing margin (7) is 0.03 mm to 0.25 mm.

3. The compound milling cutter for hydraulic motor oil port machining according to claim 1 or 2, wherein: the smoothing margin (7) is of an inclined structure, and the angle of the smoothing margin is 1-5 degrees.

4. The compound milling cutter as claimed in claim 1, wherein the compound milling cutter is adapted for hydraulic motor oil port machining, and comprises: the diameter of the first blade part (5) is 5 mm to 16 mm.

5. The compound milling cutter as claimed in claim 1, wherein the compound milling cutter is adapted for hydraulic motor oil port machining, and comprises: the diameter of the second blade part (6) is 12 mm to 32 mm.