CN213052911U - Back milling cutter for machining end faces of flange bolt holes - Google Patents

Abstract

The utility model discloses a back milling cutter for processing the end face of a flange bolt hole, which comprises a cutter head, wherein a mounting hole is arranged in the cutter head; the blades are arranged on the cutter head; the cutter bar is connected with the cutter head through a positioning structure; the positioning structure comprises a positioning head arranged at one end of the cutter bar and a positioning block arranged in the mounting hole, and the positioning head is in rotating fit with the positioning block; the beneficial effects are that: in the split milling cutter, the cutter bar is inserted into the cutter head, and then a driving motor connected to the cutter bar is turned on to drive the cutter bar to rotate, so that the cutter bar drives the cutter head to rotate to process the end surface of a workpiece; in the process, the cutter bar can automatically limit the upper position and the lower position of the cutter head, and the cutter head can be ensured to stably rotate along with the cutter bar; the installation process of the cutter bar and the cutter head is simple and rapid, and the working state is stable.

Description

Back milling cutter for machining end faces of flange bolt holes

Technical Field

The utility model relates to a flange bolt hole end face machining back of body milling cutter belongs to the milling cutter field

Background

It is known that, when machining a machine part, the surface of the part is often machined by a milling cutter mounted on a corresponding machine tool, and the roughness of the machined surface of the part is thus ensured.

The Chinese utility model patent document with publication number "CN 104043864B" discloses a "plane milling cutter head relating to the field of machining cutters" the device comprises a disk body, a milling cutter and a gland, wherein the center of the disk body is provided with a shaft hole, four cutter grooves are uniformly distributed around the shaft hole, and the bit of the borer in the cutter groove protrudes out of the disk surface of the disk body; the cutter groove vertically penetrates through the disc body, a radial adjusting hole is formed in the position, corresponding to the upper end and the lower end of the outer side of the cutter groove, of the outer wall surface of the disc body, a radial adjusting jackscrew is installed in the radial adjusting hole, a recess is formed in the middle of the inner side of the disc body, corresponding to the cutter groove, and a positioning block is arranged in the recess.

Although the upper part of the disc body of the device is provided with a gland, the gland is provided with an axial adjusting hole corresponding to the center of the top surface of each milling cutter bar, and an axial adjusting jackscrew is arranged in the axial adjusting hole; the milling cutter head can effectively meet the machining requirement of parts with the plane roughness of 0.4.

However, the plane milling cutter head can be driven by the rotating shaft only after the rotating shaft is matched with the shaft hole in the device; the installation between pivot and the shaft hole is comparatively loaded down with trivial details, and dismantles inconveniently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flange bolt hole end face machining back of body milling cutter can effectively solve the rapid fit's of blade disc pivot and cutter body problem.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the cutter comprises a cutter head, wherein a mounting hole is formed in the cutter head; the blades are arranged on the cutter head; the cutter bar and the cutter head are arranged in a split manner; the positioning structure is used for connecting the cutter bar with the cutter head; the positioning structure comprises a positioning head and a positioning block, the positioning head is arranged at one end of the cutter bar, the positioning block is arranged in the cutter head, and the positioning head is in rotating fit with the positioning block.

According to the arrangement, the blades are connected with the cutter head through bolts, the cutter bar is inserted into the mounting hole, and then the cutter bar and the cutter head are positioned together through the positioning structure; the positioning head and the cutter bar are integrally machined and formed; after the positioning head is inserted into the mounting hole, the cutter bar is rotated to enable the positioning head to rotate relative to the positioning block, and the positioning head and the positioning block are positioned.

Furthermore, the positioning head is provided with an annular clamping groove, the positioning block comprises a limiting plate, and when the cutter bar is inserted into the cutter head, the limiting plate is arranged in the annular clamping groove.

According to the arrangement, the positioning head is similar to a boss in shape due to the arrangement of the annular clamping groove; when the positioning head rotates, the positioning block rotates in the annular clamping groove, and the position, without the annular clamping groove, of the lower end of the positioning head also rotates along with the annular clamping groove, so that the positioning block is clamped, and positioning is completed.

Furthermore, a terminal surface of the limiting plate is level and vertical, tangent planes are arranged on two sides of the positioning head, and the tangent planes are level and vertical.

So set up, make the cutter arbor is inserting when in the blade disc, the location head process the in-process of locating piece, the tangent plane with the setting of limiting plate terminal surface can make the location head inserts downwards smoothly, then is blocked at the up end of limiting plate by ring groove upper groove face.

Furthermore, the locating piece still includes the cardboard, cardboard one side is provided with the inclined plane.

With the arrangement, the clamping plate is arranged to limit the rotation range of the positioning head when the positioning head rotates relative to the positioning block; the inclined plane is used for matching with the outer arc surface of the positioning head, so that the positioning head can rotate conveniently.

Furthermore, the perpendicular line of inclined plane with in the blade disc the tangent line of mounting hole is perpendicular.

So set up after the location head is accomplished to rotate, the tangent plane of location head can with the inclined plane laminating.

Furthermore, the cardboard is installed terminal surface under the limiting plate, just terminal surface under the cardboard with terminal surface flushes under the blade disc.

So set up, make the cutter arbor insert in the blade disc, and utilize location structure is right after the cutter arbor is fixed a position, the cutter arbor under the terminal surface with the terminal surface flushes under the blade disc.

Further, the clamping plates are two in number and are arranged in a central symmetry mode relative to the axis of the mounting hole.

So set up, can make the more stable installation of cutter arbor is in the blade disc.

Furthermore, a plurality of installation grooves with uniform peripheral parts are formed in the upper end face of the cutter head, and the blades are fixed to the same side of the installation grooves.

So set up, mounting groove quantity is four, and even distribution is in the blade disc up end, the blade is installed this in the mounting groove, blade cutting edge position is higher than the blade disc up end.

Compared with the prior art, the utility model has the advantages that:

in the split milling cutter, the cutter bar is inserted into the cutter head, and then a driving motor connected to the cutter bar is turned on to drive the cutter bar to rotate, so that the cutter bar drives the cutter head to rotate to process the end surface of a workpiece; in the process, the cutter bar can automatically limit the upper position and the lower position of the cutter head, and the cutter head can be ensured to stably rotate along with the cutter bar; the installation process of the cutter bar and the cutter head is simple and rapid, and the working state is stable.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

FIG. 1 is a three-dimensional structure of the present invention;

FIG. 2 is a view of the cutter bar of the present invention;

FIG. 3 is a detail view of the cutter head of the present invention;

FIG. 4 is a cross-sectional view of the cutter head of the present invention;

fig. 5 is a bottom view of the cutter head of the present invention;

fig. 6 is a cross-sectional view taken along line a-a of fig. 5 in accordance with the present invention;

fig. 7 is a cross-sectional view taken along line B-B of fig. 5 in accordance with the present invention;

fig. 8 is a rear bottom view of the tool bar and the cutter head of the present invention in a rotationally engaged manner;

fig. 9 is a cross-sectional view taken along line C-C of fig. 8 in accordance with the present invention;

fig. 10 is a cross-sectional view taken along line D-D of fig. 8 in accordance with the present invention;

fig. 11 is a bottom view of the cutter bar of the present invention inserted into the cutter head;

fig. 12 is a cross-sectional view of C1-C1 of fig. 11 in accordance with the present invention;

fig. 13 is a cross-sectional view of the device of fig. 11 taken along line D1-D1.

Description of reference numerals:

1. a cutter head; 2. a blade; 3. a cutter bar; 4. a positioning structure; 5. positioning the head; 6. positioning blocks; 501. an annular neck; 502. cutting into noodles; 601. a limiting plate; 602. clamping a plate; 603. a bevel; 101. mounting holes; 102. And (4) mounting the groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

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", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, 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 "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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-13, an embodiment of the back milling cutter for processing the end face of the flange bolt hole of the present invention includes a cutter head 1, and a mounting hole 101 is provided in the cutter head 1; the blade 2 is arranged on the cutter head 1; the cutter bar 3 is arranged separately from the cutter head 1; the positioning structure 4 is used for connecting the cutter bar 3 with the cutter head 1; the positioning structure 4 comprises a positioning head 5 arranged at one end of the cutter bar 3 and a positioning block 6 arranged in the cutter head 1, and the positioning head 5 is in rotating fit with the positioning block 6.

The blade 2 is connected with the cutter head 1 through a bolt, the cutter bar 3 is inserted into the mounting hole 101, and then the cutter bar 3 and the cutter head 1 are positioned together through the positioning structure 4; the positioning head 5 and the cutter bar 3 are integrally processed and formed; after the positioning head 5 is inserted into the mounting hole 101, the positioning head 5 can rotate relative to the positioning block 6 by rotating the cutter bar 3, so that the positioning head 5 and the positioning block 6 are positioned.

The working principle of the embodiment is as follows: when the end face of the flange bolt hole is machined, firstly, a bolt is sleeved on a cutter bar 3, then the cutter bar 3 is inserted into a cutter head 1, and a positioning head 5 at the tail end of the cutter bar 3 can be in contact with a positioning block 6 in an installation hole 101; then, the cutter bar 3 is rotated, the positioning head 5 rotates relative to the positioning block 6, the upper and lower positions of the cutter bar 3 and the cutter head 1 are fixed, and the cutter head 1 can rotate along with the rotation direction of the cutter bar 3; after the cutter bar 3 and the cutter head 1 are positioned, fixing a flange bolt to be processed, rotating the cutter bar 3, and driving the blade 2 on the cutter head 1 by the cutter bar 3 to process the end face of the flange bolt; the installation process of the cutter bar 3 and the cutter head 1 is simple and quick.

In this embodiment, after the cutter bar 3 is inserted into the cutter head 1, in the process that the positioning head 5 rotates relative to the positioning block 6, the positioning head 5 is provided with the annular clamping groove 501, the positioning block 6 includes the limiting plate 601, and when the cutter bar 3 is inserted into the cutter head 1, the limiting plate 601 is placed in the annular clamping groove 501.

The annular clamping groove 501 is arranged to enable the positioning head 5 to be similar to a boss in shape; when the positioning head 5 rotates, the positioning block 6 rotates in the annular clamping groove 501, and the position, which is not provided with the annular clamping groove 501, at the lower end of the positioning head 5 also rotates along with the annular clamping groove, so that the positioning block 6 is clamped, and positioning is completed;

in this embodiment, limiting plate 601 a terminal surface levels and vertical setting, and locating head 5 both sides are provided with tangent plane 502, and tangent plane 502 levels and vertical setting. In the process that the positioning head 5 passes through the positioning block 6, the tangent plane 502 and the end face of the limiting plate 601 are arranged, so that the positioning head 5 can be smoothly inserted downwards, and then the upper groove face of the annular clamping groove 501 is clamped on the upper end face of the limiting plate 601.

In this embodiment, the positioning block 6 further includes a clamping plate 602, and an inclined plane 603 is disposed on one side of the clamping plate 602. The clamping plate 602 is provided to limit the rotation range of the positioning head 5 when the positioning head 5 rotates relative to the positioning block 6; the inclined plane 603 is used for matching with the outer arc surface of the positioning head 5, so that the positioning head 5 can rotate conveniently.

The vertical line of the inclined plane 603 is perpendicular to the tangent line of the mounting hole 101 in the cutter head 1. After the positioning head 5 completes the rotation, the tangent plane 502 of the positioning head 5 can be attached to the inclined plane 603. The clamping plate 602 is arranged on the lower end face of the limiting plate 601, and the lower end face of the clamping plate 602 is flush with the lower end face of the cutter head 1.

So that the cutter bar 3 is inserted into the cutter head 1 and the lower end surface of the cutter bar 3 is flush with the lower end surface of the cutter head 1 after the cutter bar 3 is positioned by the positioning structure 4. The card plates 602 are two in number and are arranged to be axisymmetrical with respect to the axis of the mounting hole 101.

The specific installation process of the cutter bar 3 and the cutter head 1 of the embodiment is as follows: insert cutter arbor 3 in blade disc 1 at first, the setting of tangent plane 502 of locating head 5 makes locating head 5 can pass the space that two limiting plates 601 formed smoothly, then from with locating head 5 contacts through limiting plate 601 up end of the boss that ring groove 501 formed and locating piece 6, and this moment locating head 5 stops to descend, rotates cutter arbor 3 after that, and cutter arbor 3 can drive locating head 5 and rotate together, and the in-process of locating head 5 dwang, the inclined plane 603 of cardboard 602 can be contacted to the locating head 5 side, just at this moment accomplishes the location process between cutter arbor 3 and the blade disc 1. Utilize cardboard 602 to restrict the rotation range of location head 5, if location head 5 continues to rotate, then can drive the whole rotation that rotates of blade disc 1, process the flange bolt.

The principle of the disassembly process of the cutter bar 3 and the cutter head 1 is the same in this embodiment, after the cutter bar 3 stops rotating, the cutter bar 3 is held by a hand to slightly rotate the position of the cutter bar 3, so that the tangent plane 502 is aligned with the limiting plate 601, and the cutter bar 3 is pulled out.

The cutter bar 3 can be more stably arranged in the cutter head 1. The upper end surface of the cutter head 1 is provided with a plurality of mounting grooves 102 with uniform circumference, and the blades 2 are fixed on the same side of the mounting grooves 102.

The number of the mounting grooves 102 is four, the mounting grooves are uniformly distributed on the upper end face of the cutter head 1, the blades 2 are mounted in the mounting grooves 102, and the cutting edge parts of the blades 2 are higher than the upper end face of the cutter head 1.

The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims (10)

1. The utility model provides a flange bolt hole end face machining back of body milling cutter which characterized in that: the device comprises a cutter head (1), wherein a mounting hole (101) is formed in the cutter head (1);

the blade (2), the said blade (2) is set up on the said cutter head (1);

the cutter bar (3), the said cutter bar (3) is connected with said cutter head (1) through a locating structure (4);

the positioning structure (4) comprises a positioning head (5) arranged at one end of the cutter bar (3) and a positioning block (6) arranged in the mounting hole (101), and the positioning head (5) is in rotating fit with the positioning block (6).

2. The flange bolt hole end face machining back milling cutter according to claim 1, characterized in that: be provided with ring groove (501) on location head (5), locating piece (6) include limiting plate (601), work as cutter arbor (3) insert when in blade disc (1), limiting plate (601) are arranged in ring groove (501).

3. The flange bolt hole end face machining back milling cutter according to claim 2, characterized in that: limiting plate (601) one end face levels and vertical setting, locating head (5) both sides are provided with tangent plane (502), tangent plane (502) level and vertical setting.

4. The flange bolt hole end face machining back mill according to claim 2 or 3, characterized in that: the positioning block (6) further comprises a clamping plate (602), and an inclined surface (603) is arranged on one side of the clamping plate (602).

5. The flange bolt hole end face machining back milling cutter according to claim 4, characterized in that: the vertical line of the inclined plane (603) is perpendicular to the tangent line of the mounting hole (101) in the cutter head (1).

6. The flange bolt hole end face machining back milling cutter according to claim 4, characterized in that: cardboard (602) are installed terminal surface under limiting plate (601), just terminal surface under cardboard (602) with terminal surface flushes under blade disc (1).

7. The flange bolt hole end face machining back milling cutter according to claim 4, characterized in that: the clamping plates (602) are two in number and are arranged in a central symmetry mode relative to the axis of the mounting hole (101).

8. The flange bolt hole end face machining back milling cutter according to claim 5, characterized in that: the cutter head is characterized in that a plurality of mounting grooves (102) with uniform peripheral parts are formed in the upper end face of the cutter head (1), and the blades (2) are fixed to the same side of the mounting grooves (102).

9. The flange bolt hole end face machining back milling cutter according to claim 6, characterized in that: the cutter head is characterized in that a plurality of mounting grooves (102) with uniform peripheral parts are formed in the upper end face of the cutter head (1), and the blades (2) are fixed to the same side of the mounting grooves (102).

10. The flange bolt hole end face machining back milling cutter according to claim 7, characterized in that: the cutter head is characterized in that a plurality of mounting grooves (102) with uniform peripheral parts are formed in the upper end face of the cutter head (1), and the blades (2) are fixed to the same side of the mounting grooves (102).

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