阅读说明：本技术 一种高精加工车床及其加工工艺和应用 (High-precision machining lathe and machining process and application thereof ) 是由 韩晓云 于 2021-08-09 设计创作，主要内容包括：本发明提供了一种高精加工车床,属于机加工技术领域。该高精加工车床,包括床身、设置于床身内的驱动装置、设置于床身上方的主切削装置和分别设置与主切削装置左右两侧的第一进给切削装置和第二进给切削装置；驱动装置驱动主切削装置进行旋转；主切削装置包括安装有主轴头的空心主轴和设置于空心主轴孔内的夹具。本发明提供的高精加工车床,能够保证双面同步加工,提高了加工效率和精准度。(The invention provides a high-precision machining lathe, and belongs to the technical field of machining. The high-precision machining lathe comprises a lathe body, a driving device arranged in the lathe body, a main cutting device arranged above the lathe body, and a first feed cutting device and a second feed cutting device which are respectively arranged at the left side and the right side of the main cutting device; the driving device drives the main cutting device to rotate; the main cutting device comprises a hollow main shaft provided with a main shaft head and a clamp arranged in a hollow main shaft hole. The high-precision machining lathe provided by the invention can ensure double-sided synchronous machining and improve the machining efficiency and precision.)

1. A high-precision machining lathe is characterized by comprising a lathe body, a driving device arranged in the lathe body, a main cutting device arranged above the lathe body, and a first feed cutting device and a second feed cutting device which are respectively arranged on the left side and the right side of the main cutting device;

the driving device drives the main cutting device to rotate;

the main cutting device comprises a hollow main shaft provided with a main shaft head and a clamp arranged in the hollow main shaft hole.

2. A high-precision machining lathe according to claim 1 wherein the drive means includes a servo motor which drives the hollow spindle to rotate via a timing belt.

3. A high precision machining lathe according to claim 1 wherein the timing belt is disposed in the middle of the hollow spindle.

4. A high-precision machining lathe according to claim 1, wherein each of the first feed cutting device and the second feed cutting device includes a cross slide provided on the lathe bed, a tool rest provided on the cross slide, and a tool provided on the tool rest.

5. The machining process of a high-precision machining lathe according to any one of claims 1 to 4, characterized by comprising the steps of:

s1, clamping the workpiece to the inner surface of the hollow main shaft in the main cutting device and clamping the workpiece by a clamp;

s2, adjusting the feed amount of the first feed cutting device and the second feed cutting device;

s3, starting a driving device to drive the hollow spindle to rotate for cutting;

and (S4) after the cutting is finished, unloading the workpiece.

6. Use of a high precision machining lathe according to any one of claims 1 to 4 for machining coaxial stepped bores and non-rotationally symmetrical parts of small and medium size workpieces.

Technical Field

The invention relates to the technical field of machining, in particular to a high-precision machining lathe and a machining process and application thereof.

Background

The machining of the coaxial stepped hole in the existing mechanical manufacturing field is generally finished by adopting a traditional lathe, a numerical control lathe or a boring machine, a horizontal machining center and other machining modes.

The traditional processing mode generally has the problems of low processing efficiency, large coaxiality deviation, high equipment manufacturing cost and the like.

Disclosure of Invention

In view of this, the present invention is directed to solve the technical problems of low processing efficiency, large coaxiality deviation and high equipment cost generally existing in the prior art when processing a coaxial stepped hole, and therefore, one of the objectives of the present invention is to provide a high-precision processing lathe capable of ensuring synchronous processing of two surfaces and improving processing efficiency and precision.

In order to achieve the purpose, the invention provides the following technical scheme:

a high-precision machining lathe comprises a lathe body, a driving device arranged in the lathe body, a main cutting device arranged above the lathe body, and a first feed cutting device and a second feed cutting device which are respectively arranged on the left side and the right side of the main cutting device;

the driving device drives the main cutting device to rotate;

the main cutting device comprises a hollow main shaft provided with a main shaft head and a clamp arranged in the hollow main shaft hole.

Preferably, the driving device comprises a servo motor, and the servo motor drives the hollow spindle to rotate through a synchronous belt.

Preferably, the timing belt is disposed in the middle of the hollow main shaft.

Preferably, the first feeding and cutting device and the second feeding and cutting device respectively comprise a cross sliding table arranged on the lathe bed, a tool rest arranged on the cross sliding table and a tool arranged on the tool rest.

The second object of the present invention is to provide a machining process of the high-precision machining lathe, including the steps of:

s1, clamping the workpiece to the inner surface of the hollow main shaft in the main cutting device and clamping the workpiece by a clamp;

s2, adjusting the feed amount of the first feed cutting device and the second feed cutting device;

s3, starting a driving device to drive the hollow spindle to rotate for cutting;

and (S4) after the cutting is finished, unloading the workpiece.

The invention also aims to provide the application of the high-precision machining lathe in machining coaxial stepped holes and non-rotationally symmetrical parts of small-sized workpieces.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the high-precision machining lathe provided by the invention, through the arranged hollow main shaft, as the workpiece 5 is combined with the inner surface of the hollow main shaft through the clamp, when the driving device runs, the hollow main shaft is driven to be selectively installed, so that the workpiece is driven to rotate, double-sided machining is realized, and the machining efficiency and the machining precision are improved.

2. The high-precision machining lathe provided by the invention has the advantages that the structure of the lathe is adopted for machining, so that the low manufacturing cost and stable machining are ensured.

3. The high-precision machining lathe provided by the invention adopts the matching use of the servo motor and the synchronous belt, ensures high transmission efficiency and low noise, and can realize the expansion functions of accurate stop, indexing and the like.

4. According to the machining process of the high-precision machining lathe, the balance of the balance weight can be adjusted by modifying the weight of the clamp, so that machining of non-rotation symmetrical parts is achieved, and the machining accuracy is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure, 1, a lathe bed, 2, a spindle head, 3, a cross sliding table, 4, a tool rest, 5, a workpiece, 6, a clamp, 7, a cutter, 8, a servo motor, 9, a synchronous belt and 10, a hollow spindle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the invention provides a high-precision machining lathe, which comprises a lathe body 1, a driving device arranged in the lathe body 1, a main cutting device arranged above the lathe body 1, and a first feed cutting device and a second feed cutting device which are respectively arranged at the left side and the right side of the main cutting device;

the driving device drives the main cutting device to rotate;

the main cutting device comprises a hollow main shaft 10 provided with a main shaft head 2 and a clamp 6 arranged in a hole of the hollow main shaft 10.

In the structure of the invention, the hollow main shaft 10 is driven to rotate by the driving device, so that the fixture 6 drives the workpiece 5 to synchronously rotate, double-sided processing is realized under the action of the first feeding cutting device and the second feeding cutting device arranged on the left side and the right side, and the processing efficiency and the processing precision are improved.

In the invention, the driving device comprises a servo motor 8, the servo motor 8 drives the hollow spindle 10 to rotate through a synchronous belt 9, and the servo motor 8 and the synchronous belt 9 are matched for use, so that the high transmission efficiency and low noise are ensured, and the expansion functions of accurate stop, indexing and the like can be realized.

In order to ensure the stability of the operation of the lathe and further improve the processing precision, in the invention, the synchronous belt 9 is arranged in the middle of the hollow main shaft 10.

In the invention, the first feeding and cutting device and the second feeding and cutting device respectively comprise a cross sliding table 3 arranged on the lathe bed, a tool rest 4 arranged on the cross sliding table 3 and a tool 7 arranged on the tool rest 4.

The purpose of the feed cutting device adopted by the invention is to ensure the processing efficiency and the processing accuracy of the workpiece 5 during double-sided synchronous processing.

The invention provides a processing technology of the high-precision processing lathe, which comprises the following steps:

s1, clamping the workpiece 5 to the inner surface of the hollow main shaft 10 in the main cutting device, and clamping by using the clamp 6 to ensure that the workpiece 5 is positioned on the inner surface of the hollow main shaft 10;

s2, adjusting the feed amount of the first feed cutting device and the second feed cutting device, wherein the feed amount is adjusted according to actual requirements;

s3, starting a driving device to drive the hollow spindle 10 to rotate, and enabling the first feed cutting device and the second feed cutting device to start to operate to cut the workpiece 5;

and (S4) after the cutting is finished, unloading the workpiece.

The invention also provides application of the high-precision machining lathe in machining coaxial stepped holes and non-rotationally symmetrical parts of small-sized workpieces.

When the high-precision machining lathe provided by the invention is used for machining non-rotationally symmetrical parts, the counterweight weight of the clamp needs to be adjusted, and when the hollow main shaft 10 rotates, the counterweight on the left side and the counterweight on the right side of the workpiece are the same, so that the machining precision of the non-rotationally symmetrical parts is ensured.

It should be noted that, the connection relationship between the parts in the present invention, which is not specifically described, is a conventional connection manner of lathe parts in the art, for example: welding and bolting. For this reason, the connection method is well known to those skilled in the art, and will not be described in detail.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.