CN216656397U

CN216656397U - Finish machining device for lathe

Info

Publication number: CN216656397U
Application number: CN202123440256.9U
Authority: CN
Inventors: 刘绍敏; 邓云军; 李振华
Original assignee: Xiamen Jingwei Machinery Manufacturing Co ltd
Current assignee: Xiamen Jingwei Machinery Manufacturing Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-03
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a lathe finish machining device which comprises a clamp body, a positioning substrate, a first clamping mechanism and a first positioning piece which are arranged between the clamp body and the positioning substrate, and a second locking mechanism arranged on the positioning substrate; the two end faces of the positioned substrate are a positioning end face and a workpiece mounting end face respectively; the positioning substrate is detachably connected with the clamp body through a first clamping mechanism and is positioned with the clamp body through a first positioning piece; the second locking mechanism is detachably arranged on the workpiece mounting end face and used for fixing a workpiece; the fixture body is used for being installed on a machine tool. The utility model can be used on different machine tools, unifies the correction of different machine tools, avoids repeated positioning errors and artificial correction errors, is convenient to install, reduces the time for clamping workpieces on the machine tools, and thus improves the processing efficiency and quality.

Description

Finish machining device for lathe

Technical Field

The utility model relates to the technical field of machining, in particular to a lathe finish machining device for cylinder cover production.

Background

When a cylinder cover is machined at present, the cylinder cover is usually clamped on a three-jaw chuck of a machine tool by finger joint for end face machining, and because the end face of the cylinder cover is usually provided with a step circle with a smaller diameter, the cylinder cover can not be machined completely at one time when being directly clamped on the three-jaw chuck for machining an inner hole and the end face, and an outer circle at the other end can be machined only by secondary clamping, so that the form and position tolerance of machining is difficult to guarantee, and the finish machining quality is influenced; and the clamp is directly clamped on the three-jaw chuck, so that the clamping force is large, the excircle of the cylinder cover can be directly abraded, and the machining quality is low.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the lathe finish machining device which can finish machining of the cylinder cover at one time, does not need secondary clamping, can effectively ensure form and position tolerance and improve the machining quality of workpieces.

The technical scheme of the utility model is as follows: a lathe finish machining device comprises a clamp body, a positioning substrate, a first clamping mechanism and a first positioning piece which are arranged between the clamp body and the positioning substrate, and a second locking mechanism arranged on the positioning substrate; the two end faces of the positioned substrate are a positioning end face and a workpiece mounting end face respectively; the positioning substrate is detachably connected with the clamp body through a first clamping mechanism and is positioned with the clamp body through a first positioning piece; the second locking mechanism is detachably arranged on the workpiece mounting end face and used for fixing a workpiece; the fixture body is used for being installed on a machine tool.

Wherein: the first clamping mechanism is a hollow revolving body, and the inner side of the first clamping mechanism is provided with a threaded ring-shaped object; one end of the first clamping mechanism is welded with the clamp body into a whole, and the welding seam at the welding position is lower than 5 mm.

Wherein: the outer end face of the first clamping mechanism is arranged in a mirror face mode.

Wherein: the first positioning piece is a columnar revolving body; an annular groove is formed in the first positioning piece, and the height of the groove is 8-12 mm; and one end of the first positioning piece is provided with a thread.

Wherein: a column-shaped object bulge part is arranged on one side of the clamp body, and the cross sectional area of the column-shaped object bulge part is smaller than that of the clamp body; the clamp body is provided with first threaded holes in a penetrating manner in a circumferential array; an adjusting element is adjustably screwed on the first threaded hole; the fixture body is provided with a second threaded hole for screwing the first positioning piece.

Wherein: the second locking mechanism comprises a pressure plate and a locking bolt; the pressure plate and the locking bolt are coaxially arranged; the locking bolt is screwed on the clamp body.

Wherein: the pressing plate is provided with a through hole in a penetrating manner, and third threaded holes are formed in the circumferential array on the peripheral side of the through hole; and a second adjusting element is adjustably screwed in the third threaded hole.

Wherein: the positioning substrate is provided with a positioning connecting surface, and the positioning connecting surface is in surface contact with the first positioning piece.

The utility model has the following beneficial effects:

1) according to the utility model, the inner circle, the outer circle and the end face of the cylinder cover to be processed are finely processed through the clamp body, the positioning substrate, the first clamping mechanism, the first positioning piece and the second locking mechanism, the high-requirement form and position tolerance of the cylinder cover during processing is ensured, the cylinder cover is prevented from being crushed by a three-jaw chuck during clamping the cylinder cover, when an inner hole is processed, the positioning body is firstly clamped on the three-jaw chuck, the cylinder cover to be processed is arranged in the positioning sleeve, the locking bolt is screwed, and after the cylinder cover to be processed is fixed, the main shaft is opened to process the inner hole and the small circular end face; when a large-circle end face is machined, a pressing plate is fixed on a small-circle end face of a cylinder cover to be machined through a locking bolt, a nut end cover is loosened and taken down, a main shaft is opened to machine the outer circle and the large-circle end face of the small circle, the problem that the form and position tolerance deviation is increased due to the fact that the cylinder cover to be machined is loosened and detached is solved through mutual switching and clamping of the nut end cover and the pressing plate, the damage to the outer circle of the cylinder cover to be machined due to clamping of a three-jaw chuck is avoided through fixing of the nut end cover and the pressing plate, and machining quality is improved;

2) the utility model can be used on different machine tools, unifies the correction of different machine tools, avoids repeated positioning errors and artificial correction errors, is convenient to install, reduces the time for clamping workpieces on the machine tools, and thus improves the processing efficiency and quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, a lathe finish machining device for finish machining of an end cover comprises a clamp body 1, a positioning substrate 2, a first clamping mechanism 5 and a first positioning piece 4 which are arranged between the clamp body 1 and the positioning substrate 2, and a second locking mechanism 3 arranged on the positioning substrate 2. Wherein, two end faces of the positioned substrate 2 are a positioning end face 21 for positioning and a workpiece mounting end face 22 for mounting a processed workpiece; specifically, the positioning substrate 2 is detachably connected with the clamp body 1 through the first clamping mechanism 5, and is positioned with the clamp body 1 through the first positioning piece 4 to prevent rotation during machining; the second locking mechanism 3 is detachably arranged on the workpiece mounting end surface 22 and used for firmly locking the workpiece on the workpiece mounting end surface 22 to prevent the displacement phenomenon; the fixture body 1 is used for butting a machine tool and fixing a workpiece to be machined on the machine tool.

When the lathe finish machining device is used, the clamp body 1 can be fixedly arranged on different machine tools, the positioning base plate 2 and the clamp body 1 can be accurately positioned and quickly detachably fixed through the first clamping mechanism 5 and the first positioning piece 4, the workpiece can be accurately positioned and quickly detachably fixed on the positioning base plate 2 through the second locking mechanism 3, therefore, the workpiece 1 and the positioning base plate 2 can be circulated on different machine tools together only after the workpiece and the positioning base plate 2 are positioned and fixed, the workpiece 1 can be accurately positioned on different machine tools quickly and conveniently through the accurate positioning and the detachable fixing between the positioning base plate 2 and the clamp body 1, the whole process can be accurately positioned on different machine tools quickly and conveniently, the workpiece can be used on different machine tools, the correction of different machine tools is unified, the repeated positioning error and the artificial correction error are avoided, and the installation is convenient, the time for clamping the workpiece on the machine tool is reduced, so that the machining efficiency and the machining quality are improved.

In addition to the above embodiments, the first clamping mechanism 5 is a hollow rotator, and the inner side of the hollow rotator is provided with a threaded ring; 5 one end of first clamping mechanism with the anchor clamps body 1 welds integratively, and the welding seam of welding department is less than 5mm, does not influence the installation again when making it have stronger joint strength, makes it can quick assembly disassembly, and is nimble convenient, and 5 outer terminal surfaces of first clamping mechanism are the mirror surface setting for the repeated positioning error between the two is all less than 0.003mm when connecting the installation.

On the basis of the above embodiment, the first positioning member 4 is a column rotator; an annular groove is formed in the first positioning piece 4, and the height of the groove is 8-12 mm; and one end of the first positioning piece 4 is provided with a thread. One end of the first positioning piece 4 is screwed on the fixture body 1, the extended end is inserted in the positioning base plate 2, and the repeated positioning error between the first positioning piece and the positioning base plate is less than 0.002mm, so that the whole processing has higher positioning precision.

On the basis of the embodiment, one side of the clamp body 1 is provided with a column-shaped bulge part, and the cross section area of the column-shaped bulge part is smaller than that of the clamp body 1; the fixture body 1 is provided with first threaded holes 11 which penetrate through the fixture body in a circumferential array; an adjusting element 12 is adjustably screwed on the first threaded hole 11; the fixture body 1 is provided with a second threaded hole 13 for screwing the first positioning piece 4.

On the basis of the above embodiment, the second locking mechanism 3 includes a deformable pressing plate 31 and a locking bolt 32; the pressure plate 31 and the locking bolt 32 are coaxially arranged; the locking bolt 32 is screwed on the clamp body 1, and when the clamp is used, the pressing plate 31 can be pressed on the end cover part by screwing the locking bolt 32, so that the movement is prevented.

On the basis of the above embodiment, the pressing plate 31 is provided with through holes 311, and the peripheral side of the through holes 311 is provided with third threaded holes 312 in a circumferential array; the third threaded hole 32 is adjustably screwed with a second adjusting element 313.

On the basis of the above embodiment, the positioning substrate 2 is provided with a positioning connection surface 24, and the positioning connection surface 24 is in surface contact with the first positioning element 4.

In conclusion, the fine machining of the inner circle, the outer circle and the end face of the cylinder cover to be machined is realized through the fixture body 1, the positioning base plate 2, the first clamping mechanism 5, the first positioning piece 6 and the second locking mechanism 3, the high-requirement form and position tolerance during the machining of the cylinder cover is ensured, the cylinder cover is prevented from being crushed when the cylinder cover is clamped on the cylinder cover through the three-jaw chuck, when an inner hole is machined, the positioning body is clamped on the three-jaw chuck, the cylinder cover to be machined is installed in the positioning sleeve, the locking bolt is screwed, and after the cylinder cover to be machined is fixed, the main shaft is opened to machine the inner hole and the small circular end face; when a large-circle end face is machined, the pressing plate is fixed on the small-circle end face of the cylinder cover to be machined through the locking bolt, the nut end cover is loosened and taken down, the outer circle and the large-circle end face of the small circle to be machined through the main shaft are opened, the problem that the form and position tolerance deviation is increased due to the fact that the cylinder cover to be machined is loosened and detached is avoided through mutual switching and clamping of the nut end cover and the pressing plate, damage to the outer circle of the cylinder cover to be machined through clamping of the three-jaw chuck is avoided, and machining quality is improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A lathe finish machining device is characterized in that: the clamp comprises a clamp body (1), a positioning substrate (2), a first clamping mechanism (5) and a first positioning piece (4) which are arranged between the clamp body (1) and the positioning substrate (2), and a second locking mechanism (3) which is arranged on the positioning substrate (2); two end faces of the positioned substrate (2) are a positioning end face (21) and a workpiece mounting end face (22) respectively; the positioning substrate (2) is detachably connected with the clamp body (1) through a first clamping mechanism (5) and is positioned with the clamp body (1) through a first positioning piece (4); the second locking mechanism (3) is detachably arranged on the workpiece mounting end surface (22) and used for fixing a workpiece; the fixture body (1) is used for being mounted on a machine tool; the first clamping mechanism (5) is a hollow revolving body, and the inner side of the first clamping mechanism is provided with a threaded ring-shaped object; one end of the first clamping mechanism (5) is welded with the clamp body (1) into a whole, and the welding seam at the welding position is lower than 5 mm.

2. The lathe finishing apparatus as defined in claim 1, wherein: the outer end face of the first clamping mechanism (5) is arranged in a mirror face mode.

3. The lathe finishing apparatus as defined in claim 1, wherein: the first positioning piece (4) is a columnar revolving body; an annular groove is formed in the first positioning piece (4), and the height of the groove is 8-12 mm; one end of the first positioning piece (4) is provided with a thread.

4. The lathe finishing apparatus as defined in claim 1, wherein: a column-shaped protruding part is arranged on one side of the clamp body (1), and the cross sectional area of the column-shaped protruding part is smaller than that of the clamp body (1); the clamp body (1) is circumferentially provided with first threaded holes (11) which penetrate through the clamp body in an array manner; an adjusting element (12) is adjustably screwed on the first threaded hole (11); the fixture body (1) is provided with a second threaded hole (13) for screwing the first positioning piece (4).

5. The lathe finishing apparatus as defined in claim 1, wherein: the second locking mechanism (3) comprises a pressure plate (31) and a locking bolt 32; the pressure plate (31) and the locking bolt 32 are coaxially arranged; the locking bolt 32 is screwed on the clamp body (1).

6. The lathe finishing apparatus as defined in claim 5, wherein: a through hole (311) is arranged on the pressing plate (31) in a penetrating manner, and third threaded holes (32) are arranged on the peripheral side of the through hole (311) in a circumferential array manner; the third threaded hole (32) is adjustably screwed with a second adjusting element (33).

7. The lathe finishing apparatus as defined in claim 1, wherein: the positioning base plate (2) is provided with a positioning connecting surface (24), and the positioning connecting surface (24) is in surface contact with the first positioning piece (4).