CN211192177U - Flat drill for machining valve sleeve - Google Patents

Abstract

The utility model provides a flat drill for processing a valve sleeve, which is provided with a drill handle, a first flat cutting edge and a second flat cutting edge from right to left in turn, the width of the first flat blade is larger than that of the second flat blade, a transition conical surface with the cross section area gradually reduced from right to left is arranged between the first flat blade and the second flat blade, the left end of the second flat blade is provided with a knife tip, by arranging the first flat cutting edge and the second flat cutting edge which are connected on one flat drill, when in work, the second flat cutting edge firstly contacts with the valve sleeve and carries out rough machining and hole expanding, then first flat cutting edge contacts with the valve barrel and carries out finish machining bore hole again, and the reaming and the bore hole work of valve barrel can be accomplished to this kind of mode one process, has reduced the cost of labor, has improved machining efficiency, has guaranteed the reaming quality of valve barrel simultaneously.

Description

Flat drill for machining valve sleeve

Technical Field

The utility model relates to a hydraulic component produces the manufacturing field, especially relates to a flat drill for valve barrel processing.

Background

The valve sleeve is an important part of the hydraulic valve, the valve sleeve is the only part which can be worn, and the pressing of the valve is performed by using compressed air on the valve sleeve. The valve housing forms part of the operator, thus avoiding the use of expensive piston operators, operating diaphragms, or electric motors, with air pressure interposed between the valve housing and the valve sleeve for operating the opening and closing and throttling of the valve.

The valve sleeve inner hole mainly needs to be formed by machining the inner hole, the machining of the inner hole generally comprises two processes of reaming and boring hole finish machining, the prior art generally comprises two independent processes of reaming flat drill machining and boring hole flat drill machining, and the mode is high in labor cost and low in efficiency.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that valve barrel hole processing generally divide into twice independent process of reaming flat drill processing and bore hole flat drill processing among the prior art, and this kind of mode cost of labor is higher, and efficiency is lower, the utility model provides a flat drill for valve barrel processing solves above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a flat drill for valve barrel processing, the flat drill turns left from the right side and has set gradually drillstock, first flat cutting edge and the flat cutting edge of second, the width of first flat cutting edge is greater than the width of the flat cutting edge of second, first flat cutting edge with be provided with between the flat cutting edge of second and turn left the transition conical surface that the cross-sectional area reduces gradually by the right side, the left end of the flat cutting edge of second is equipped with the knife tip.

Further: the flat drill is made of tungsten steel.

Further: the outer surfaces of the first flat blade and the second flat blade are both subjected to titanizing treatment.

Further: and the side wall of the drill handle is provided with a mounting flat position.

The beneficial effects of the utility model are that, the utility model relates to a flat drill for valve barrel processing is through setting up continuous first flat cutting edge and the flat cutting edge of second on a flat drill, the width of first flat cutting edge is greater than the width of the flat cutting edge of second, in operation, the flat cutting edge of second contacts and carries out rough machining reaming with the valve barrel earlier, then first flat cutting edge contacts and carries out the finish machining bore hole with the valve barrel again, the reaming and the bore hole work of valve barrel can be accomplished to this kind of mode process together, the cost of labor is reduced, the machining efficiency is improved, the reaming quality of valve barrel has been guaranteed simultaneously.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a spade drill for machining a valve sleeve according to the present invention;

fig. 2 is a perspective view of a spade drill for machining a valve sleeve according to the present invention.

In the figure, 1, a drill handle, 2, a first flat cutting edge, 3, a second flat cutting edge, 4, a transition conical surface, 5, a tool nose, 6 and an installation flat position.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

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", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

As shown in fig. 1 and 2, the utility model provides a flat drill for valve barrel processing, the flat drill turns left from the right side and has set gradually drillstock 1, first flat cutting edge 2 and second flat cutting edge 3, the width of first flat cutting edge 2 is greater than the width of second flat cutting edge 3, first flat cutting edge 2 with be provided with between the second flat cutting edge 3 by the right side to the left cross-sectional area transition conical surface 4 that reduces gradually, the left end of second flat cutting edge 3 is equipped with knife tip 5.

During operation, the second flat blade 3 contacts with the valve sleeve firstly and carries out rough machining reaming, then the first flat blade 2 contacts with the valve sleeve again and carries out finish machining bore hole, and the reaming and bore hole work of valve sleeve can be accomplished to this kind of mode one process, has guaranteed the reaming quality of valve sleeve.

The flat drill is made of tungsten steel, has the characteristics of high strength and corrosion resistance, is long in service life, is not easy to deform in the using process, and ensures the processing quality of the valve sleeve. The outer surfaces of the first flat cutting edge 2 and the second flat cutting edge 3 are both subjected to titanium plating treatment, and the cutting edges subjected to titanium plating treatment have the characteristics of high temperature resistance and wear resistance in the using process, so that the service life of the flat drill is prolonged.

The side wall of the drill handle 1 is provided with the flat installation position 6, and the flat installation position 6 is arranged, so that the stability of the flat drill is improved, and the influence on the processing quality caused by the fact that the flat drill rotates along with the valve sleeve in the processing process due to looseness is avoided.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, a schematic representation of the term does 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.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (4)

1. A flat drill for processing a valve sleeve is characterized in that: the flat drill turns left from the right side and has set gradually drillstock (1), first flat cutting edge (2) and second flat cutting edge (3), the width of first flat cutting edge (2) is greater than the width of second flat cutting edge (3), first flat cutting edge (2) with be provided with between second flat cutting edge (3) by the right side to the transition conical surface (4) that left cross-sectional area reduces gradually, the left end of second flat cutting edge (3) is equipped with knife tip (5).

2. A spade drill for valve housing machining according to claim 1 wherein: the flat drill is made of tungsten steel.

3. A spade drill for valve housing machining according to claim 1 wherein: the outer surfaces of the first flat blade (2) and the second flat blade (3) are both subjected to titanium plating treatment.

4. A spade drill for valve housing machining according to claim 1 wherein: the side wall of the drill handle (1) is provided with an installation flat position (6).

Images