阅读说明：本技术 一种柴油发动机曲轴箱体缸孔多尺寸复合加工刀具 (Multi-size combined machining tool for cylinder holes of crankcase body of diesel engine ) 是由 端木学龙 陈建军 刘亚男 王龙晶 陈亚栋 徐铮 杨姝青 于 2021-09-22 设计创作，主要内容包括：本发明提供了一种柴油发动机曲轴箱体缸孔多尺寸复合加工刀具,包括刀体、刀柄和数个刀片,所述刀体安装在刀柄上,数个刀片各自通过一个刀夹轴向顺次安装在刀体上,刀片数量和曲轴箱体缸孔待加工孔数量相同且一一对应设置。本刀具价格低廉,制造成本低,制造过程简易,安装方便,操作简单,多个刀片安装在同一个刀体上,实现缸孔多个孔径同步加工,提高了缸孔加工效率,保证缸孔多个孔段的同轴度,解决了原多把镗刀分步加工时因重复加工导致缸孔多个孔段同轴度超差问题,同时本刀具便于调整刀片轴向及径向位置,提高加工效率。(The invention provides a multi-size composite machining tool for a cylinder hole of a crankcase body of a diesel engine, which comprises a tool body, a tool shank and a plurality of blades, wherein the tool body is arranged on the tool shank, the blades are respectively and sequentially arranged on the tool body through a tool holder in the axial direction, and the number of the blades is the same as that of holes to be machined in the cylinder hole of the crankcase body and is arranged in a one-to-one correspondence manner. This cutter low price, low in manufacturing cost, the manufacturing process is simple and easy, simple to operate, easy operation, a plurality of blades are installed on same cutter body, realize the synchronous processing in a plurality of apertures in jar hole, have improved jar hole machining efficiency, guarantee the axiality of a plurality of hole sections in jar hole, have solved former a plurality of boring cutters step-by-step add man-hour because of the repeated processing lead to a plurality of hole section axiality out of tolerance problems in jar hole, this cutter is convenient for adjust blade axial and radial position simultaneously, improves machining efficiency.)

1. The utility model provides a many sizes combined machining cutter of diesel engine crankcase jar hole which characterized in that: including cutter body (3), handle of a knife (5) and several blade (8), install on handle of a knife (5) cutter body (3), several blade (8) are installed on cutter body (3) through a cutter holder (1) axial separately in order, and blade (8) quantity and crankcase body jar hole wait that the processing hole quantity is the same and the one-to-one sets up.

2. The multi-dimension composite machining tool for the cylinder bore of the crankcase body of the diesel engine as claimed in claim 1, wherein: the cutter body (3) has been seted up the blind hole in the one end that is connected with handle of a knife (5), and in handle of a knife (5) inserted this blind hole, handle of a knife (5) and cutter body (3) were connected fixedly through center fastening screw (2) that blind hole bottom department set up.

3. The multi-dimension composite machining tool for the cylinder bore of the crankcase body of the diesel engine as claimed in claim 2, wherein: the blind hole is internally provided with a reinforcing sleeve (4), and the knife handle (5) is inserted in the reinforcing sleeve (4).

4. The multi-dimension composite machining tool for the cylinder bore of the crankcase body of the diesel engine as claimed in claim 1, wherein: the outer circumferential surface of the cutter body (3) is provided with a mounting groove (31) corresponding to the cutter holder (1), the cutter holder (1) is embedded in the mounting groove (31) and is locked and fixed through a cutter holder fixing screw (7), and a through hole in the cutter holder (1) corresponding to the cutter holder fixing screw (7) is a waist hole with a long edge arranged along the axial direction of the cutter body (3);

the distance is reserved between one end of the cutter holder (1) close to the cutter handle (5) and the side wall of the mounting groove (31) close to the cutter handle (5), one end of the cutter holder (1) close to the cutter handle (5) is connected with an axial adjusting screw (6) along the axial thread of the cutter body (3), and the nut of the axial adjusting screw (6) is abutted to the side wall of the mounting groove (31).

5. The multi-dimension composite machining tool for the cylinder bore of the crankcase body of the diesel engine as set forth in claim 4, wherein: the outer circumferential surface of the nut of the axial adjusting screw (6) is at least evenly provided with three fixing holes.

6. The multi-dimension composite machining tool for the cylinder bore of the crankcase body of the diesel engine as set forth in claim 4, wherein: the end face, departing from the blade (8), of the tool holder (1) is a tool holder positioning face, the positioning face is abutted against the side wall of the corresponding mounting groove (31) to form a supporting and positioning structure (11), the tool holder (1) is radially and threadedly connected with a radial adjusting screw (9) along the tool body (3), and the bottom end of the radial adjusting screw (9) is abutted against the bottom of the mounting groove (31);

the included angle between the mounting surface of the cutter holder (1) corresponding to the cutter holder fixing screw (7) and the cutter holder positioning surface is an acute angle, and the length of the wide side of the through hole on the cutter holder corresponding to the cutter holder fixing screw (7) is 3-5mm larger than the diameter of the cutter holder fixing screw (7).

7. The multi-dimension composite machining tool for the cylinder bore of the crankcase body of the diesel engine as claimed in claim 1, wherein: the cutter body (3) is an aviation aluminum alloy part.

Technical Field

The invention belongs to the field of cutters for hole machining, and particularly relates to a multi-size composite machining cutter for a cylinder hole of a crankcase body of a diesel engine.

Background

Diesel engine crankcase body jar hole is the ladder hole structure, need change when processing this jar hole and use many boring cutters to accomplish, and this processing mode has the defect to be: the boring cutter is arranged in each hole diameter, so that the cutter preparation is more, the preparation time is too long, and the processing cutter needs to be repeatedly replaced during the processing of the cylinder hole, so that the coaxiality and the position precision of a plurality of hole sections of the cylinder hole are difficult to control.

Disclosure of Invention

In view of this, the invention aims to provide a multi-size composite machining tool for a cylinder hole of a crankcase body of a diesel engine, so as to realize synchronous machining of multiple bore diameters of the cylinder hole and improve the machining quality of the cylinder hole.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a multi-dimension combined machining cutter for cylinder holes of crankcase bodies of diesel engines, includes cutter body, handle of a knife and several blade, the cutter body is installed on the handle of a knife, and the several blade is installed on the cutter body through a cutter holder axial separately in order, and the same and one-to-one setting of processing hole quantity is treated to blade quantity and crankcase body cylinder holes.

Furthermore, the cutter body has seted up the blind hole in the one end that is connected with the handle of a knife, and in the handle of a knife inserted this blind hole, the handle of a knife and the cutter body connected fixedly through the central fastening screw that blind hole bottom department set up.

Furthermore, a reinforcing sleeve is arranged in the blind hole, and the knife handle is inserted in the reinforcing sleeve.

Furthermore, the outer circumferential surface of the cutter body is provided with a mounting groove corresponding to the cutter holder, the cutter holder is embedded in the mounting groove and is locked and fixed through a cutter holder fixing screw, and a through hole on the cutter holder corresponding to the cutter holder fixing screw is a waist hole with a long edge arranged along the axial direction of the cutter body;

and a distance is reserved between one end of the cutter holder, which is close to the cutter handle, and the side wall of the mounting groove, which is close to the cutter handle, and one end of the cutter holder, which is close to the cutter handle, is connected with an axial adjusting screw along the axial thread of the cutter body, and the nut of the axial adjusting screw is abutted against the side wall of the mounting groove.

Furthermore, at least three fixing holes are uniformly formed in the outer circumferential surface of a nut of the axial adjusting screw.

Furthermore, the end surface of the tool holder, which is far away from the blade, is a tool holder positioning surface, the positioning surface is abutted against the side wall of the corresponding mounting groove to form a supporting and positioning structure, the tool holder is in threaded connection with a radial adjusting screw along the radial direction of the tool body, and the bottom end of the radial adjusting screw is abutted against the bottom of the mounting groove;

the included angle between the mounting surface of the cutter holder corresponding to the cutter holder fixing screw and the cutter holder positioning surface is an acute angle, and the length of the wide side of the through hole on the cutter holder corresponding to the cutter holder fixing screw is 3-5mm larger than the diameter of the cutter holder fixing screw.

Further, the cutter body is an aviation aluminum alloy part.

Compared with the prior art, the multi-size composite machining tool for the cylinder hole of the crankcase body of the diesel engine has the following advantages:

(1) this cutter low price, low in manufacturing cost, the manufacturing process is simple and easy, simple to operate, easy operation, a plurality of blades are installed on same cutter body, realize the synchronous processing in a plurality of apertures in jar hole, have improved jar hole machining efficiency, guarantee the axiality of a plurality of hole sections in jar hole, have solved former a plurality of boring cutters step-by-step add man-hour because of the repeated processing lead to a plurality of hole section axiality out of tolerance problems in jar hole, this cutter is convenient for adjust blade axial and radial position simultaneously, improves machining efficiency.

(2) In this cutter, cutter body and handle of a knife cartridge are connected locking fixed knot through central fastening screw and are constructed, are guaranteeing this combined machining cutter to give machining strength basis on, have improved cutter equipment convenience.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of a multi-sized composite cutting tool for machining a cylinder bore of a crankcase according to the present embodiment;

FIG. 2 is a front view of a multi-sized composite tooling for a crankcase cylinder bore according to the present embodiment;

FIG. 3 is a schematic view of the internal structure of the multi-sized combined machining tool for the cylinder hole of the crankcase according to the embodiment;

FIG. 4 is a perspective view of the toolholder mounting;

description of reference numerals:

1-a tool holder; 11-positioning the support structure; 2-a central fastening screw; 3, a cutter body; 31-a mounting groove; 4-reinforcing sleeve; 5-a knife handle; 6-axial adjusting screw; 7-a toolholder set screw; 8-a blade; 9-radial adjustment screw.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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 used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-3, the multi-size composite machining tool for the cylinder hole of the crankcase body of the diesel engine comprises a tool body 3, a tool handle 5 and a plurality of blades 8, wherein the tool body 3 is cylindrical and is preferably made of aviation aluminum alloy. Cutter body 3 is installed on handle of a knife 5, and 8 quantity of blades and crankcase cylinder hole wait that the processing hole quantity is the same and the one-to-one setting, and several blade 8 is installed on cutter body 3 in order through 1 axial of a cutter holder separately, and cutter holder 1 includes blade installation department and cutter body connecting portion, and the handle of a knife 5 setting is kept away from to the blade installation department than cutter body installation department, cutter body installation department and cutter body 3 fixed connection, and blade 8 is installed on the blade installation department, and blade 8 radially sets up along cutter body 3. In this embodiment, a plurality of blades 8 are installed on same cutter body 3, realize the synchronous processing in a plurality of apertures in crankcase body jar hole, guarantee a plurality of hole sections axiality requirements, guarantee jar hole quality, have saved the tool changing time simultaneously, have improved production efficiency.

In this embodiment, cutter body 3 and handle of a knife 5 can be dismantled and be connected, and the concrete structure is: the blind hole has been seted up at its one end that is connected with handle of a knife 5 to cutter body 3, and the blind hole internal fixation has a reinforcing sleeve 4, and handle of a knife 5 inserts to this reinforcing sleeve 4 in, and handle of a knife 5 and cutter body 3 are connected fixedly through central fastening screw 2 that blind hole bottom department set up.

In this embodiment, an installation groove 31 corresponding to the tool holder 1 is formed in the outer circumferential surface of the tool body 3, the tool holder 1 is embedded in the installation groove 31, and is fixedly connected with the tool body 3 through a tool holder fixing screw 7 corresponding to the tool body installation portion, a through hole corresponding to the tool holder fixing screw 7 in the tool body installation portion is a waist hole structure with a long edge arranged along the axial direction of the tool body 3, the tool holder fixing screw 7 penetrates through the through hole and then is screwed into the tool body 3, on one hand, the tool holder 1 and the tool body 3 are fixedly connected, and on the other hand, the tool holder 1 is ensured to be capable of being adjusted along the axial position of the tool body 3. The specific axial adjustment structure of the tool holder 1 is characterized in that a distance is reserved between one end, close to the tool holder 5, of the tool holder 1 and the side wall, close to the tool holder 5, of the mounting groove 31 to form an adjustment space, the tool holder 1 is connected with an axial adjustment screw 6 in a threaded mode in the axial direction of the tool body 3 at one end, close to the tool holder 5, of the tool holder 1, the nut of the axial adjustment screw 6 is located in the adjustment space, and the nut of the axial adjustment screw 6 abuts against the side wall, close to the tool holder 5, of the mounting groove 31. The axial adjusting screw 6 is arranged to realize the axial position adjustment of the tool holder 1. In order to facilitate manual operation, at least three fixing holes are uniformly formed in the outer circumferential surface of the nut of the axial adjusting screw 6. The artifical allen key that can use rotates axial adjusting screw 6, when needing to the adjustment of 1 axial position of cutter holder, with allen key cartridge to one of them fixed orifices, then rotate axial adjusting screw 6, can change the length that axial adjusting screw 6 unscrewed cutter holder 1, because the nut of axial adjusting screw 6 is hugged closely with mounting groove 31 lateral wall all the time, the change of 1 axial position of cutter holder this moment, realize the adjustment of 1 axial position of cutter holder, after the adjustment is accomplished, it can in mounting groove 31 to use cutter holder set screw 7 to fix cutter holder 1.

In this embodiment, the positioning and supporting structure 11 of the tool holder 1 and the mounting groove 31 is formed by abutting the end surface of the tool holder 1 departing from the insert 8 and the side wall of the mounting groove 31 corresponding to the end surface, as shown in fig. 4, that is, the positioning surface of the tool holder 1 is the end surface of the tool holder 1 departing from the insert mounting surface, and after the tool holder is installed in the mounting groove 31, the positioning surface and the side wall of the mounting groove 31 facing the positioning surface are tightly attached to form a stable supporting structure. The tool holder 1 is in threaded connection with a radial adjusting screw 9 in the radial direction of the tool body 3, the bottom end of the radial adjusting screw 9 abuts against the bottom of the mounting groove 31, in the embodiment, the radial adjusting screw 9 can be replaced by a stud structure, and the radial position of the blade 8 can be adjusted by adjusting the length of the radial adjusting screw 9 extending out of the tool holder 1. For guaranteeing the fixing stability of the cutter holder 1, the included angle between the end surface of the cutter body mounting part deviating from the mounting groove 31 and the positioning surface of the cutter holder 1 on the cutter holder 1 is an acute angle, the cutter holder fixing screw 7 is mounted on the end surface of the cutter body mounting part deviating from the mounting groove 31, namely, the end surface of the cutter body mounting part deviating from the mounting groove 31 is the mounting surface of the cutter holder fixing screw 7, and the included angle between the mounting surface and the positioning surface of the cutter holder is an acute angle. The length of the wide side of the through hole (waist hole structure) on the cutter body mounting part corresponding to the cutter holder fixing screw 7 is 3-5mm larger than the diameter of the cutter holder fixing screw 7, and the structure realizes the size adjustment of the radial 0-3mm of the blade. In this embodiment, the included angle between the mounting surface of the tool holder fixing screw 7 and the tool holder positioning surface is an acute angle, and this structure ensures that when the tool holder 1 is pressed and fixed in the mounting groove 31 by the tool holder fixing screw 7, a pressing force can be respectively decomposed in the direction perpendicular to the tool holder positioning surface and the groove bottom direction perpendicular to the mounting groove 31, thereby ensuring the mounting stability of the tool holder 1.

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 invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.