CN212350402U

CN212350402U - Boring device for processing deep hole

Info

Publication number: CN212350402U
Application number: CN202021058778.5U
Authority: CN
Inventors: 穆晓会; 田春雷; 石奇; 方烁伦; 张志强
Original assignee: Xi'an Anda Electromechanical Technology Co ltd
Current assignee: Xi'an Anda Electromechanical Technology Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-01-15
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a bore hole device of processing deep hole belongs to machining and equips. This bore hole device includes slide rail, slider, mount, cutter arbor and cutter etc. and the positioning action of this scheme utilization mount, very big increase the stability of cutter arbor, cutter, reduced the vibration in the course of working, promoted the processingquality of work piece, this bore hole device simple structure can lay and set up on ordinary lathe, when guaranteeing that cutter arbor, cutter outwards overhang 2-3 meters, still can satisfy the processing requirement.

Description

Boring device for processing deep hole

Technical Field

The utility model belongs to machining equips, concretely relates to bore hole device of processing deep hole.

Background

With the development of technologies such as aerospace, robots, new energy, precision machinery, national defense science and technology, the requirements on the performance such as precision, strength, quality, service life and stability of parts are continuously improved. Meanwhile, with the improvement of precision and complexity of machinery, the progress of machine manufacturing industry and the rapid development of domestic heavy industry and light industry, the application range of workpieces such as large holes with small ends and large middle parts is continuously expanded. Due to the application of large-inner-diameter workpieces in aerospace and weapon manufacturing, the requirements on the yield of the workpieces are continuously increased.

Aiming at a large workpiece with two small ends and a large middle part, a processing mode is to use a special boring cutter on a drilling and boring machine and extend a blade hidden in a cutter bar by pressure to process the workpiece, and in the actual processing of the processing mode, the extending condition of the blade of the special boring cutter is undefined, the processing quality cannot be controlled in real time, the processing quality cannot be ensured, and the special boring cutter has a complex structure, is easy to damage when in use and increases the processing cost; common processing enterprises also rarely have deep hole drilling and boring machines, so that the mode is difficult to be widely used for processing.

In the other processing mode, a lathe and a common boring cutter are used, in practice, the deeper a processed hole is, the poorer the rigidity of a cutter rod of the boring cutter is, the bending deformation and vibration can be generated on the boring cutter under the action of cutting force, waist drum shape, taper, ellipse error and polygonal vibration mark are generated on a processed workpiece, and the defects of the existing equipment cannot meet the requirements of deep hole processing.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a bore hole device of processing deep hole can directly set up on current lathe is structural, and this scheme utilizes the positioning action of mount, very big increase the stability of cutter arbor, cutter, has reduced the vibration in the course of working, has promoted the processingquality of work piece, and this bore hole device simple structure can lay and set up on ordinary lathe, guarantees that cutter arbor, cutter still can satisfy the processing requirement when outwards overhanging 2-3 meters.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

the utility model provides a bore hole device of processing deep hole sets up on the layer board mechanism of lathe, its characterized in that, includes first slide rail, first slider, mount, cutter arbor and cutter, wherein: the first sliding rail is arranged at the top of the supporting plate mechanism; the first sliding block is movably arranged on the first sliding rail; the fixed frame is arranged on the first sliding block and comprises a support, an outer supporting sleeve and an inner supporting sleeve, the outer supporting sleeve is arranged at the top of the support, and the inner supporting sleeve is detachably arranged in the outer supporting sleeve; the cutter bar is positioned by a plurality of fixing frames and is arranged in the inner supporting sleeve of the fixing frame; the cutter is arranged at one end of the cutter bar close to the workpiece.

Preferably, the outer and inner sleeves are concentrically arranged, wherein: the outer supporting sleeve consists of two half sleeves, one ends of the two half sleeves are connected through a hinge, and the other ends of the two half sleeves are fixed through a connecting piece; the outer contour of the inner supporting sleeve is matched with the inner contour of the outer supporting sleeve.

Preferably, the outer supporting sleeve and the inner supporting sleeve are connected through an outer set screw.

Preferably, the inner supporting sleeve is connected with the cutter bar through an inner set screw.

Preferably, the tool comprises a mechanical insert and a holder for mounting the mechanical insert.

Preferably, still include second slide rail, second slider and centre frame, wherein: the second slide rail is arranged on the machine tool; the second sliding block is movably arranged in the second sliding rail; the center frame is used for positioning the workpiece, and the center frame is arranged on the second sliding block.

The utility model discloses a bore hole device of processing deep hole has following beneficial effect:

1) the utility model discloses adjusted the clamping mode of cutter arbor, no longer used the knife rest on the lathe to press from both sides the clamping cutter arbor, but at a plurality of mounting, fixed cutter arbor, adopted the afterbody to press from both sides the mode installation cutter arbor tight, the intermediate strut. Compare cutter arbor in traditional clamping mode and only have a stress point, the cutter arbor can receive self gravity to influence flagging and lead to processing unstability, and the clamping instrument in this scheme makes the fixed point of cutter arbor become two or more, and the stability of reinforcing cutter arbor promotes processingquality.

2) The utility model discloses can guarantee that the cutter arbor when outwards overhanging 2.5-3 meters, the cutter arbor receives the influence of gravity still can satisfy the processing demand, guarantees can not appear violent vibration man-hour adding, accomplishes normal processing. A workpiece with the length of 2-3 meters can be machined on a common lathe, the total length of a cutter bar is 4 meters generally, the position of a fixed support of a supporting plate is determined according to the length of the machined workpiece, the supporting plate is generally ensured to be in the middle of the cutter bar, and the cutter bar between the supporting plate and a middle supporting plate does not participate in cutting and only plays a role of a counterweight.

3) The utility model discloses a machine presss from both sides formula blade processing work piece, selects different alloy blade according to the different characteristics of material, has improved the range of work, has saved the time of whetting a knife, has reduced the processing degree of difficulty, has improved machining efficiency, and the structural parameter of blade is unanimous, has reduced the processing risk, has improved processingquality.

4) The utility model discloses can set up on current lathe layer board mechanism, use the big layer board on the layer board that former lathe had in the processing to feed at the uniform velocity. When the size of the large inner diameter hole is processed, the supporting plate mechanism is adjusted to perform front and back displacement of the cutter bar according to the processing size, and the reasonable consumed cutter amount is determined, so that the processing efficiency is improved, and the service life and the processing quality of the mechanically-clamped cutter blade are improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the middle fixing frame of the present invention;

FIG. 3 is a schematic view of the structure of the middle support sleeve of the present invention;

FIG. 4 is a schematic view of the structure of the set screw of the present invention;

fig. 5 is a schematic view of the structure of the middle cutter of the present invention.

In the figure, 1-supporting plate mechanism, 2-first slide rail, 3-first slide block, 4-fixing frame, 401-bracket, 402-outer supporting sleeve, 403-inner supporting sleeve, 404-outer fastening screw, 405-inner fastening screw, 4021-half sleeve, 4022-hinge piece, 4023-connecting piece, 5-cutter bar, 6-cutter, 601-mechanical blade, 602-cutter holder, 7-second slide rail, 8-second slide block, 9-center frame and 10-workpiece.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "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 merely 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, are not to be construed as limiting the present invention. 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 otherwise specified.

As shown in fig. 1, the boring device for processing deep holes is arranged on a supporting plate mechanism 1 of a machine tool, it should be noted that the supporting plate mechanism 1 adopts an existing structure, the supporting plate is divided into a large supporting plate, a medium supporting plate and a small supporting plate, the large supporting plate is mainly responsible for uniform feeding, the medium supporting plate mainly acts on adjusting the cutting depth of a tool, the small supporting plate is mainly used for installing a tool bar and adjusting the cutting angle and the feeding motion of an effective range of the tool, and in this embodiment, a first slide rail 2 is arranged on the small supporting plate.

Specifically, the first sliding block 3 is movably mounted on the first sliding rail 2, and it should be noted that the first sliding block 3 and the first sliding rail 2 may be locked by screws, for example: a plurality of threaded holes or elongated slots can be formed in the first slide rail 2, a plurality of corresponding threaded holes or elongated slots are formed in the bottom of the first slide rail 2, then the first slide rail 2 is fixedly locked by screws or bolts, the screws sequentially penetrate through the corresponding threaded holes or the corresponding elongated slots, and after the position of the fixing frame 4 is adjusted, the first slide block 3 and the first slide rail 2 can be locked.

During actual work, because the first sliding block 3 and the first sliding rail 2 are locked, at the moment, the fixing frame 4 and the cutter bar 5 move synchronously with the first sliding rail 2, and when the supporting plate mechanism 1 performs position adjustment and front-back movement, the cutter 6 at the front end of the cutter bar 5 can also realize corresponding position adjustment and front-back movement.

In fig. 1, the machine further comprises a second slide rail 7, a second slide block 8 and a center frame 9, wherein the second slide rail 7 is arranged on the machine tool; the second sliding block 8 is movably arranged in the second sliding rail 7; the center frame 9 is used for positioning the workpiece 10, the center frame 9 is arranged on the second slide block 8, and a three-jaw chuck for fixing the workpiece 10 is needed in specific implementation.

As shown in fig. 1 and 2, the fixing frame 4 is mounted on the first sliding block 3 and includes a support 401, an outer supporting sleeve 402 and an inner supporting sleeve 403, the outer supporting sleeve 402 is mounted on the top of the support 401, the inner supporting sleeve 403 is detachably mounted inside the outer supporting sleeve 402, the tool bar 5 is positioned by a plurality of fixing frames 4, the tool bar 5 is disposed in the inner supporting sleeve 403 of the fixing frame 4, and the tool 6 is mounted at one end of the tool bar 5 close to the workpiece 10.

It should be noted that two fixing frames 4 are used in the present embodiment, and in a special case, three or more fixing frames 4 may be used.

Referring to fig. 2, 3 and 4, outer and

inner sleeves

402, 403 are concentrically arranged, the outer profile of inner sleeve 403 conforming to the inner profile of outer sleeve 402. Outer support cover 402 comprises two half covers 4021, and the one end of two half covers 4021 passes through articulated elements 4022 and connects, and the other end of two half covers 4021 passes through connecting piece 4023 and fixes, and articulated elements 4022 can be the hinge, and connecting piece 4023 can adopt the bolt, and the both ends of half cover 4021 outwards extend and form the platform of installation bolt.

It should be further noted that the outer supporting sleeve 402 and the inner supporting sleeve 403 are connected by an outer set screw 404, and the inner supporting sleeve 403 and the cutter bar 5 are connected by an inner set screw 405, in this embodiment, 3 to 6 screw holes for installing the outer set screw 404 are uniformly arranged on the outer supporting

sleeve

402, and 3 to 6 inner supporting sleeves 403 for installing the inner set screws 405 are uniformly arranged on the inner supporting sleeve.

As shown in fig. 5, the tool 6 includes a mechanical insert 601 and a tool holder 602 for mounting the mechanical insert 601.

When the boring machine is used for machining an inner hole, the lathe body of the lathe needs to be longer than 6 meters to ensure the machining stability, and the mechanically-clamped blade 6 is higher than the axis of the workpiece during machining. Firstly, a workpiece 10 is installed and clamped, a center frame 9 is adjusted to ensure that the workpiece is concentric with a machine tool and a mechanically clamped blade 601 is higher than the axis of the workpiece, then a cutter bar 5 is installed in two fixing frames 4, after being fixedly clamped by an inner supporting sleeve 403 in the fixing frame 4, the cutter bar is fixedly clamped by an outer supporting sleeve 402, a mechanically clamped blade 601, which is suitable according to machining size and machining material principles, is mounted on a tool holder 602, according to the size of the hole to be processed, the extending distance of the tool rest 602 is adjusted to be fixed on the tool bar 5, the lathe is started, the workpiece rotates, the large supporting plate on the supporting plate mechanism starts to feed to a proper position at a constant speed, stopping feeding, adjusting the position of the supporting plate in the supporting plate, starting feeding after the position is adjusted to a proper position, and determining the processing length according to the size of the large supporting plate on the supporting plate, stopping feeding after the large supporting plate reaches the processing position, and adjusting the large supporting plate and the middle supporting plate together to withdraw the cutter to finish processing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a bore hole device of processing deep hole, sets up on layer board mechanism (1) of lathe, its characterized in that, includes first slide rail (2), first slider (3), mount (4), cutter arbor (5) and cutter (6), wherein:

the first sliding rail (2) is arranged at the top of the supporting plate mechanism (1);

the first sliding block (3) is movably arranged on the first sliding rail (2);

the fixing frame (4) is arranged on the first sliding block (3) and comprises a bracket (401), an outer supporting sleeve (402) and an inner supporting sleeve (403), the outer supporting sleeve (402) is arranged at the top of the bracket (401), and the inner supporting sleeve (403) is detachably arranged in the outer supporting sleeve (402);

the cutter bar (5) is positioned through a plurality of fixing frames (4), and the cutter bar (5) is arranged in an inner supporting sleeve (403) of the fixing frames (4);

the cutter (6) is arranged at one end of the cutter bar (5) close to the workpiece (10).

2. A boring device for deep hole machining according to claim 1, wherein the outer holding sleeve (402) and the inner holding sleeve (403) are concentrically arranged, wherein:

the outer supporting sleeve (402) consists of two half sleeves (4021), one ends of the two half sleeves (4021) are connected through a hinge piece (4022), and the other ends of the two half sleeves (4021) are fixed through a connecting piece (4023);

the outer contour of the inner supporting sleeve (403) is adapted to the inner contour of the outer supporting sleeve (402).

3. A boring device for deep hole machining according to claim 1, wherein the outer support sleeve (402) and the inner support sleeve (403) are connected by an outer set screw (404).

4. A boring device for deep holes, according to claim 1, characterized in that the inner support sleeve (403) is connected to the tool shank (5) by means of an inner set screw (405).

5. A boring device for machining deep holes according to claim 1, characterized in that the tool (6) comprises a mechanical insert (601) and a holder (602) for mounting the mechanical insert (601).

6. A boring device for processing deep holes according to claim 1, further comprising a second slide rail (7), a second slide block (8) and a center frame (9), wherein:

the second sliding rail (7) is arranged on the machine tool;

the second sliding block (8) is movably arranged in the second sliding rail (7);

the center frame (9) is used for positioning the workpiece (10), and the center frame (9) is arranged on the second sliding block (8).