CN220761082U - Cage type boring tool - Google Patents

Abstract

The utility model discloses a cage boring tool, which comprises: one end is an opening, and the other end is a closed cylinder; the closed end of the cylinder body is provided with a mounting hole for being assembled and fixed with a boring machine spindle; the open end of the cylinder body is used for installing the boring cutter component and the ball seat. Through cage boring frock and its matched blade holder, ball seat, the processing depth of boring machine is prolonged, and shock attenuation effect is obvious, its rigidity, stability are very good.

Description

Cage type boring tool

Technical Field

The utility model relates to the technical field of tooling equipment, in particular to a cage boring tool.

Background

The valve hole and the valve shaft of the ball valve have very high requirements on external dimension, roundness deviation, machining precision and the like, and the manufacturing difficulty is far higher than that of other similar products. The precision of the valve shaft and the valve hole at the two ends of the ball valve can be ensured if the valve shaft and the valve hole are machined by a lathe, but the workpiece is as high as 5.6 meters, and the lathe in a factory can not be used for machining and can only be used for a boring machine.

The valve hole size phi 1315H7, the roughness Ra3.2, the coaxiality less than or equal to 0.04, the valve shaft size phi 970r7, the roughness Ra1.6, the coaxiality less than or equal to 0.04, the unilateral gap of 172.5mm and the depth of 600mm lead to very narrow processing space. In the boring machine process, deep hole high-precision machining is always a difficult problem in machining.

The boring machine is conventionally processed by a boring machine main shaft driving a cutter bar and a boring cutter to rotate, and a workbench driving a workpiece to perform longitudinal feeding motion. The boring bar is in a overhanging state, the rigidity of the boring bar is relatively weak, particularly when a machined hole is deep, the boring bar is easy to deform due to cutting force under the condition of not adding a guide support, most of the cutting force is uneven in deep and long hole boring machining, the rigidity of the boring bar is relatively weak, so that the boring bar is easy to vibrate in the machining process, and the machining precision cannot be guaranteed. Based on the high-precision requirements of the valve shaft and the valve hole of the ball valve, the conventional boring processing mode cannot be met due to small processing space and long depth, and the boring processing mode is realized through special tools and processes.

Disclosure of Invention

The utility model aims to provide a cage boring tool to solve the problem that the rigidity of a boring bar is not feasible to change by reducing the overhanging length for deep and long hole machining.

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

a cage boring tool, comprising: one end is an opening, and the other end is a closed cylinder; the closed end of the cylinder body is provided with a mounting hole for being assembled and fixed with a boring machine spindle; the open end of the cylinder body is used for installing the boring cutter component and the ball seat.

In some embodiments, the open end of the barrel is fitted with a flange plate on which the boring cutter component and ball seat are mounted.

In some embodiments, a plurality of first round holes penetrating through the side wall of the cylinder body are formed.

In some embodiments, the diameters of the plurality of first circular holes therethrough are equal.

In some embodiments, the cylinder body is provided with a plurality of second round holes around the mounting hole.

In some embodiments, the first circular hole and the second circular hole are equal in diameter.

In some embodiments, a plurality of rib plates are arranged on the side wall of the cylinder body, and the rib plates point to the closed end of the cylinder body from the open end of the cylinder body.

In some embodiments, the gusset has a width adjacent the open end of the can that is greater than a width of the gusset adjacent the closed end of the can.

In some embodiments, the number of the rib plates is 4, and the 4 rib plates are arranged at equal intervals.

In some embodiments, the flange plate is provided with a mounting groove at a position opposite to the rib plate, and the boring cutter component and the ball seat are correspondingly mounted in the mounting groove.

Compared with the prior art, the utility model has the following beneficial effects:

through cage boring frock and its matched blade holder, ball seat, the processing depth of boring machine is prolonged, and shock attenuation effect is obvious, its rigidity, stability are very good.

Drawings

FIG. 1 is a schematic view of a cage boring tool of example 1;

FIG. 2 is a schematic view of a cage boring tool according to another perspective of the embodiment 1;

fig. 3 is a schematic working diagram of the cage boring tool of example 1.

Illustration of: 1-cylinder, 2-rib plate, 3-flange plate, 4-first round hole, 5-mounting groove, 6-second round hole, 7-mounting hole, 8-boring cutter, 9-blade holder and 10-ball seat.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be fixedly connected, or indirectly connected through intermediaries, for example, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on the drawings, which are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or display that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or display.

A cage boring tool according to an embodiment of the present application will be described in detail below with reference to fig. 1 to 3. It is noted that the following examples are merely for explaining the present application and are not to be construed as limiting the present application.

Example 1:

as shown in fig. 1-3, a cage boring tool includes: a cylinder body 1 with one end being open and the other end being closed; the closed end of the cylinder body 1 is provided with a mounting hole 7 for being assembled and fixed with a boring machine spindle; in order to ensure that the cylinder body 1 is assembled and fixed with the boring machine spindle, the periphery of the mounting hole 7 is provided with a cross groove.

The open end of the cylinder 1 is used for installing the boring cutter 8 component and the ball seat 10. The boring tool 8 assembly includes a tool holder 9 and a boring tool 8 mounted on the tool holder 9. The cage boring tool is well fixed with a square ram and a main shaft of a 260 boring machine, 1 tool holder 9 and 3 ball holders 10 are arranged on the cage boring tool, and a boring cutter 8 is arranged on the tool holder 9.

The boring machine spindle drives the cage boring tool and the boring cutter 8 to rotate, and the workbench drives the workpiece to perform longitudinal feeding movement, so that the machining of the valve hole and the valve shaft is completed.

The cage boring tool is integrally cast by adopting QT400, through calculation and analysis, round holes are distributed on the circumference and the bottom plate, the weight of the tool can be reduced, the excessive weight of the tool is avoided, the rigidity of a boring machine main shaft is influenced, the tool and the boring machine main shaft are installed in a cantilever mode, and the weight of the tool is not allowed to exceed 700kg in order to avoid bending of the main shaft. The rigidity of the tool design is considered, the tool cannot be too heavy, 4 ribs are distributed on the outer circumference, the rigidity of the tool can be increased, and the stability under the working state is ensured. The flange plate 3 above the cage boring tool is provided with 4 grooves for installing 1 tool apron 9, boring cutter 8 and 3 ball seats 10, the ball seats 10 can effectively support the whole tool, the whole tool is supported, the tool cannot shake during turning, and the rigidity and stability of the cage boring tool are improved. Thereby guaranteeing the machining precision of the valve hole and the valve shaft and meeting the dimensional tolerance and the roughness required by the drawing.

In some embodiments, the open end of the barrel 1 is mounted with a flange plate 3, and the boring cutter 8 component and ball mount 10 are mounted on the flange plate 3. The cylinder 1 and the flange plate 3 may be integrally formed, or may be welded.

The side wall of the cylinder body 1 is provided with a plurality of first round holes 4 which penetrate through. The diameters of the plurality of first round holes 4 penetrating through the base plate are equal. The cylinder body 1 is provided with a plurality of second round holes 6 around the mounting hole 7. The diameters of the first round hole 4 and the second round hole 6 are equal. The apertures of the first round hole 4 and the second round hole 6 are equal, and the first round hole 4 and the second round hole 6 are respectively and uniformly arranged on the side wall of the cylinder body 1 and the bottom of the cylinder body 1, so that the rigidity of the whole body of the cylinder body 1 is ensured to be uniform.

The depth of the valve hole and the valve shaft of the ball valve reaches 600mm, and according to a conventional processing method, the boring bar is overlong, has poor rigidity and is easy to vibrate, the working state is unstable, and the roughness and the coaxiality can not meet the drawing requirements. The processing depth of the boring machine is prolonged through the cage boring tool and the matched tool apron 9 and ball seat 10, and the damping effect is obvious, and the rigidity and stability are very good. When the boring cutter 8 is turned, the cutting force extrudes the cage-shaped tool and the cutter holder 9 in the opposite direction, and the support of the ball seat 10 is provided, so that the cage-shaped tool and the cutter holder 9 can be supported, the complete profile can be stably cut, the requirement of drawing processing precision is met, the roughness Ra1.6 is achieved, and the coaxiality is less than or equal to 0.04.

In some embodiments, the width of the rib 2 near the open end of the can 1 is greater than the width of the rib 2 near the closed end of the can 1. The boring cutter 8 and the ball seat 10 are arranged at the opening end of the cylinder body 1, and the supporting strength of the opening end of the rib plate 2 can be improved by increasing the width of the rib plate.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (9)

1. The utility model provides a cage boring frock which characterized in that includes: one end is an opening, and the other end is a closed cylinder; the closed end of the cylinder body is provided with a mounting hole for being assembled and fixed with a boring machine spindle; the open end of the cylinder body is provided with a flange plate, four grooves are formed in the flange plate, one boring cutter component is arranged in one groove, and a ball seat is arranged in the other three grooves.

2. The cage boring tool of claim 1, wherein a plurality of first circular holes are formed in the side wall of the cylinder.

3. The cage boring tool of claim 2, wherein the diameters of the plurality of first circular holes therethrough are equal.

4. The cage boring tool of claim 2, wherein the cylinder defines a plurality of second circular holes around the mounting hole.

5. The cage boring tool of claim 4, wherein the first and second circular holes have equal diameters.

6. The cage boring tool of claim 4, wherein a plurality of rib plates are arranged on the side wall of the cylinder body, and the rib plates point to the closed end of the cylinder body from the open end of the cylinder body.

7. The tooling of claim 6, wherein the web has a greater width near the open end of the barrel than near the closed end of the barrel.

8. The cage boring tool of claim 6, wherein the number of the rib plates is 4, and the 4 rib plates are arranged at equal intervals.

9. The cage boring tool of claim 8, wherein the flange plate is provided with a mounting groove at a position opposite to the rib plate, and the boring tool component and the ball seat are correspondingly mounted in the mounting groove.