CN213470376U

CN213470376U - Reference plane machining clamp for geometric body with irregular shape

Info

Publication number: CN213470376U
Application number: CN202022492229.5U
Authority: CN
Inventors: 周绍年; 张友松
Original assignee: Yidu Tongxin Precision Forging Co ltd
Current assignee: Yidu Tongxin Precision Forging Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-06-18
Anticipated expiration: 2030-11-02

Abstract

A reference flat surface machining clamp for geometric bodies with irregular shapes comprises a base, wherein a plurality of supporting devices and a plurality of pressing devices are arranged on the base and are arranged in an annular structure, and the annular structure is in an irregular annular shape; the supporting device comprises a supporting plate, the supporting plate is fixed on the base, a supporting screw is arranged on the supporting plate, and the supporting screw is horizontally arranged and in threaded connection with the supporting plate; the pressing device comprises a pressing block, and the pressing block is connected with the base through a pressing bolt. The clamp can be conveniently clamped on a numerical control machine tool, and meanwhile, the number of the supporting points can be adjusted according to the shape of a part to achieve the purpose of limiting and clamping.

Description

Reference plane machining clamp for geometric body with irregular shape

Technical Field

The utility model belongs to the machining field, in particular to benchmark flat surface machining anchor clamps of the irregular geometry of shape.

Background

In machining, the application of the clamp is very wide. Generally for clamping and positioning purposes. The first step of machining is typically datum machining. For an axial reference, the circumferential surface is usually machined by turning, and clamping is generally achieved by a three-jaw chuck. For a general plane reference, if two parallel planes for clamping can be provided, clamping can be performed by a vise or the like. Only after clamping can subsequent machining be carried out. For some irregular workpieces which are not round and non-square, a corresponding special clamp needs to be designed for achieving the purpose of clamping when the reference plane is machined. The design of the clamp is convenient in clamping, and the clamp can adapt to various irregular planes, so that the application range of the clamp is improved to the maximum extent.

Disclosure of Invention

In view of the technical problem that the background art exists, the utility model provides a basic reference flat surface machining anchor clamps of the anomalous geometry of shape, this anchor clamps clamping that can be very convenient on the numerically-controlled machine tool, can reach the purpose of spacing centre gripping according to the quantity of the shape adjustment strong point of part simultaneously.

In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:

a reference flat surface machining clamp for geometric bodies with irregular shapes comprises a base, wherein a plurality of supporting devices and a plurality of pressing devices are arranged on the base and are arranged in an annular structure, and the annular structure is in an irregular annular shape; the supporting device comprises a supporting plate, the supporting plate is fixed on the base, a supporting screw is arranged on the supporting plate, and the supporting screw is horizontally arranged and in threaded connection with the supporting plate; the pressing device comprises a pressing block, and the pressing block is connected with the base through a pressing bolt.

In a preferred scheme, the support plate is L-shaped and is fixed with the base through a mounting bolt.

In the preferred scheme, the pressing block is provided with a bayonet which is used for inserting the edge of a workpiece to be machined; one end of the pressing block protrudes outwards and is connected with a locking bolt, and the locking bolt and the pressing bolt are both arranged perpendicular to the base; a through hole is arranged right below the locking bolt, and the diameter of the through hole is larger than that of the locking bolt.

In a preferable scheme, the locking bolt is provided with an adjusting nut, and the diameter of the adjusting nut is larger than that of the through hole.

In the preferred scheme, a plurality of positioning cylinders are arranged on the base, and a protrusion is arranged at the top end of each cylinder and used for being inserted into a process hole of a workpiece to be machined.

This patent can reach following beneficial effect:

the utility model adopts the above technical scheme, the simple and convenient clamping of accessible can realize the machining of the reference plane of irregular shape on ordinary machining center. The clamping device can be conveniently clamped on a numerical control machine tool, and meanwhile, the number of the supporting points can be adjusted according to the shape of a part to achieve the purpose of limiting and clamping.

Drawings

The invention will be further explained with reference to the following figures and examples:

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

FIG. 2 is a second three-dimensional structural diagram of the present invention;

FIG. 3 is a mounting diagram of the workpiece to be machined of the present invention in cooperation with a positioning cylinder;

fig. 4 is the fitting mounting diagram of the pressing block and the base of the present invention.

In the figure: the device comprises a workpiece to be machined 1, a pressing bolt 2, a pressing block 3, a base 4, a locking bolt 5, an adjusting nut 51, a bayonet 6, a supporting screw 7, a mounting bolt 8, a supporting plate 9, a positioning cylinder 10 and a through hole 11.

Detailed Description

A preferred scheme is as shown in fig. 1 to 4, the reference flat surface machining clamp for the geometric body with the irregular shape comprises a base 4, wherein a plurality of supporting devices and a plurality of pressing devices are arranged on the base 4, the supporting devices and the pressing devices are arranged in an annular structure, and the annular structure is in an irregular annular shape; the supporting device comprises a supporting plate 9, the supporting plate 9 is fixed on the base 4, a supporting screw 7 is arranged on the supporting plate 9, and the supporting screw 7 is horizontally arranged and is in threaded connection with the supporting plate 9; the pressing device comprises a pressing block 3, and the pressing block 3 is connected with a base 4 through a pressing bolt 2.

The workpiece 1 to be machined is shown as a positioning support for an automobile in fig. 1; a reference plane for bearing the irregular geometry needs to be machined. The part body is an irregular geometric body with a non-circular non-square shape, and the requirements of clamping cannot be met by the conventional universal fixtures such as chucks, vices and the like. The number of the supporting devices is 3-5, the number of the pressing devices is two, and the structure formed by enclosing the plurality of supporting devices and the plurality of pressing devices is determined according to the shape of the workpiece 1 to be processed. The supporting device is used for supporting the workpiece 1 to be processed, and the pressing device is used for pressing the workpiece 1 to be processed downwards.

Further, as shown in fig. 1, the support plate 9 is L-shaped, and the support plate 9 is fixed to the base 4 by the mounting bolt 8.

Further, as shown in fig. 4, a bayonet 6 is arranged on the pressing block 3, and the bayonet 6 is used for inserting the edge of the workpiece 1 to be processed; one end of the pressing block 3 protrudes outwards and is connected with a locking bolt 5, and the locking bolt 5 and the pressing bolt 2 are both arranged perpendicular to the base 4; a through hole 11 is arranged right below the locking bolt 5, and the diameter of the through hole 11 is larger than that of the locking bolt 5.

Furthermore, the locking bolt 5 is provided with an adjusting nut 51, and the diameter of the adjusting nut 51 is larger than that of the through hole 11. Before adjusting the push bolt 2, the adjusting nut 51 is adjusted upwards. When the pressing block 3 presses the workpiece 1 to be machined, the adjusting nut 51 moves downwards, so that the adjusting nut 51 is in contact with the upper surface of the base 4.

Further, a plurality of positioning cylinders 10 are arranged on the base 4, and protrusions for inserting the fabrication holes 101 of the workpiece 1 to be processed are arranged at the top ends of the cylinders 10. As shown in FIG. 3, the number of the positioning cylinders 10 is preferably 2-3, and the positioning cylinders 10 are positioned according to the position of the fabrication hole 101 of the workpiece 1 to be processed, so as to achieve the purpose of accurate positioning.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides an irregularly shaped geometric object's benchmark flat surface machining anchor clamps, includes base (4), its characterized in that: the base (4) is provided with a plurality of supporting devices and a plurality of pressing devices, the supporting devices and the pressing devices are arranged in an annular structure, and the annular structure is in an irregular annular shape; the supporting device comprises a supporting plate (9), the supporting plate (9) is fixed on the base (4), a supporting screw (7) is arranged on the supporting plate (9), and the supporting screw (7) is horizontally arranged and is in threaded connection with the supporting plate (9); the pressing device comprises a pressing block (3), and the pressing block (3) is connected with the base (4) through a pressing bolt (2).

2. The irregular geometry reference flat machining fixture of claim 1, wherein: the supporting plate (9) is L-shaped, and the supporting plate (9) is fixed with the base (4) through a mounting bolt (8).

3. The irregular geometry reference flat machining fixture of claim 1, wherein: a bayonet (6) is arranged on the pressing block (3), and the bayonet (6) is used for being inserted into the edge of the workpiece (1) to be machined; one end of the pressing block (3) protrudes outwards and is connected with a locking bolt (5), and the locking bolt (5) and the pressing bolt (2) are both perpendicular to the base (4); a through hole (11) is arranged right below the locking bolt (5), and the diameter of the through hole (11) is larger than that of the locking bolt (5).

4. The irregular geometry reference flat machining fixture of claim 3, wherein: an adjusting nut (51) is arranged on the locking bolt (5), and the diameter of the adjusting nut (51) is larger than that of the through hole (11).

5. The irregular geometry reference flat machining fixture of claim 1, wherein: the base (4) is provided with a plurality of positioning cylinders (10), the top ends of the cylinders (10) are provided with protrusions, and the protrusions are used for being inserted into fabrication holes of workpieces to be processed (1).