CN216632848U - Machining device for deep oil sealing hole - Google Patents

Abstract

The utility model discloses a processing device for a deep oil sealing hole, which comprises a device body; the device body consists of three parts, including a guiding device, a reamer with phi 45mm and a cutter bar, wherein the centers of the guiding device, the reamer and the cutter bar are all provided with phi 8mm inner holes for communication; hard alloy guide bars are inlaid in the outer circle of the guide device, four water outlet holes are formed in the guide device, the reamer and the cutter bar are connected in a positioning shaft and hole precise matching mode and fastened through screws. The utility model has the beneficial effects that: the reamer is novel in design and reasonable in structure, when the reamer is cut in, the guide device completely enters the phi 44.5 bottom hole and starts to guide, the phenomenon that a cutting edge generates large radial runout due to stress is avoided, the reamer can cut uniformly and stably along the bottom hole by lubricating and cooling the reamer by the aid of the internal cooling liquid, and the position degree, the cylindricity and the surface roughness of the phi 45H7 hole are guaranteed and can be popularized and applied in a large area.

Description

Machining device for deep oil sealing hole

Technical Field

The utility model relates to the technical field of engines, in particular to a machining device for a deep oil sealing hole.

Background

A main bearing penetrating bolt hole of a high-power engine cylinder body is intersected with an oil supply channel hole in the middle through a phi 45H7 oil sealing hole, as shown in figures 1 and 2, an O-shaped sealing ring installed on a bolt is used for sealing engine oil, the engine oil leakage is prevented, the hole position degree is 0.4mm, the cylindricity is 0.011mm, the hole depth is 550-605 mm, the processing manufacturability is poor, the hole is difficult to process and detect, if the processing quality is in problem, the lubricating oil leakage can be caused, the oil pressure of a lubricating system is insufficient, each friction pair cannot normally work, and accidents such as cylinder pulling, tile melting and the like can be caused in serious cases.

A common manufacturer reams a phi 45H7 hole by using a common phi 45 reamer on a floor boring and milling center, as shown in FIG. 3.

The existing processing device has two defects, namely, a phi 44.5 bottom hole is 605mm deep, a deep hole is formed, and the position degree is poor; secondly, when a phi 45H7 hole is reamed, the reamer bar is thin and long, the rigidity is not good, the feeding of the machine tool spindle is rigid, and the reamer generates large radial run-out during cutting, so that the cutting position of the reamer deviates from the center; and thirdly, dry processing is adopted without lubrication and cooling. The three defects can cause that the phi 45H7 hole cannot be hinged, the hole position degree, the cylindricity and the surface roughness are seriously out of tolerance, a gap is generated between the hole and the O-shaped sealing ring, and the lubricating oil leakage occurs.

SUMMERY OF THE UTILITY MODEL

In order to solve the existing problems, the utility model provides a machining device for deep oil sealing holes. The utility model is realized by the following technical scheme.

A processing device for deep oil sealing holes comprises a device body;

the device body consists of three parts, including a guiding device, a reamer and a cutter bar, wherein the centers of the guiding device, the reamer and the cutter bar are all provided with inner holes communicated with each other;

the outer circle of the guide device is inlaid with a hard alloy guide strip and provided with four water outlet holes, and the guide device, the reamer and the cutter bar are connected in a positioning shaft and hole precise matching mode and are fastened by screws.

Preferably, the reamer is a Φ 45mm reamer.

Preferably, the inner hole is a phi 8mm inner hole.

The utility model has the beneficial effects that: the reamer is novel in design and reasonable in structure, when the reamer is cut in, the guide device completely enters the phi 44.5 bottom hole and starts to guide, the phenomenon that a cutting edge generates large radial runout due to stress is avoided, the reamer can cut uniformly and stably along the bottom hole by lubricating and cooling the reamer by the aid of the internal cooling liquid, and the position degree, the cylindricity and the surface roughness of the phi 45H7 hole are guaranteed and can be popularized and applied in a large area.

Drawings

FIG. 1 is a schematic structural diagram of a phi 45H7 oil seal hole;

FIG. 2 is an enlarged view of a phi 45H7 oil seal hole;

FIG. 3 is a schematic view of a φ 45 reamer;

fig. 4 is a schematic structural diagram of a machining device for deep oil sealing holes according to the present invention.

Detailed Description

The technical scheme of the utility model is more fully explained in detail by combining the attached drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In specific embodiment 1, a machining device for deep sealing of an oil hole comprises a device body, wherein the device body comprises three parts, including a guide device 1, a reamer 2 and a cutter bar 3, the centers of the guide device 1, the reamer 2 and the cutter bar 3 are all provided with inner holes 4 communicated, wherein the reamer 2 is a phi 45mm reamer, and the inner holes 4 are phi 8mm inner holes;

the outer circle of the guide device 1 is inlaid with a hard alloy guide strip and provided with four water outlets 5, cutting fluid is sprayed out from the four water outlets 5 through an inner hole 4 with the diameter of 8mm by a machine tool inner cooling system and is used for lubricating and cooling the guide device 1 and the reamer 2, and the guide device 1, the reamer 2 and the cutter bar 3 are connected in a positioning shaft 6 and hole precise matching mode and are fastened by screws.

The processing device comprises the following operation steps:

(1) mounting the machining device on a main shaft, and determining the coordinate position of a machining hole X, Y by a machine tool;

(2) the machining device enters a phi 48mm hole, cooling liquid in the main shaft is started, and the main shaft rotates at a low speed;

(3) feeding along the Z axis, slowly entering a phi 44.5mm bottom hole by the guide device 1, and starting to guide;

(4) the main shaft rotates at normal speed and advances, and the reamer 2 starts cutting;

(5) after the reamer 2 is cut, the machining device retreats to the position in the step (2), the internal cutting fluid is closed, and the main shaft stops rotating;

(6) and (4) quickly retracting the main shaft to the position of the step (1) to prepare for processing the next hole.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (3)

1. The utility model provides a processingequipment of deep oil seal hole, includes the device body, its characterized in that:

the device body consists of three parts, including a guiding device, a reamer and a cutter bar, wherein the centers of the guiding device, the reamer and the cutter bar are all provided with inner holes communicated with each other;

the outer circle of the guide device is inlaid with a hard alloy guide strip and provided with four water outlet holes, and the guide device, the reamer and the cutter bar are connected in a positioning shaft and hole precise matching mode and are fastened by screws.

2. The machining device for the deep oil sealing hole according to claim 1, wherein: the reamer is a phi 45mm reamer.

3. The machining device for the deep oil sealing hole according to claim 1, wherein: the inner hole is phi 8 mm.

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