CN205237267U - Special frock of line cutting process irregularly -shaped hole - Google Patents

Abstract

A special tooling for machining special-shaped holes by wire cutting, including a tooling main body, an inwardly recessed workpiece positioning groove is arranged above the tooling main body, the workpiece positioning groove is surrounded by a first support surface, a second support surface and a third support surface and the second A support surface is inclined relative to the horizontal plane. A through hole for the movement of the wire cutting resistance wire is arranged on the first support surface along the vertical direction. Wherein, the inclination angle of the first supporting surface relative to the horizontal plane is based on the fact that the axis of the special-shaped hole to be processed after the workpiece is placed on the supporting surface is perpendicular to the horizontal plane. The cross-section of the through hole on the first supporting surface is larger than that of the special-shaped hole. The beneficial effect of the utility model is that the special-shaped tooling for processing special-shaped holes by wire cutting is: the tooling is set on the wire-cutting machine tool to position the workpiece, and the processing of special-shaped holes on the workpiece is realized on the wire-cutting equipment. The processing precision is high, the structure is simple, and it is convenient and practical.

Description

Special tooling for special-shaped holes in wire cutting

technical field

The utility model relates to the tooling fixture technology, in particular to a special tooling for wire cutting and processing special-shaped holes.

Background technique

As shown in Figure 1, if it is necessary to process a non-circular shaped hole 1 on the workpiece, wire cutting as a special processing method should be the preferred processing method. However, if the axis of the special-shaped hole 1 is inclined to the reference plane of the workpiece, the workpiece needs to be clamped obliquely so that the axis of the special-shaped hole is perpendicular to the working table of the wire-cutting machine tool. In the prior art, the machining of special-shaped holes by wire cutting usually uses pads and pressure plates of different thicknesses to clamp the workpiece obliquely, which is not only inefficient, but also cannot guarantee the machining accuracy. Apparently, the prior art methods for cutting and processing special-shaped holes have problems such as low efficiency and inability to guarantee processing accuracy.

Utility model content

In order to solve the problems of low efficiency and inability to guarantee the machining accuracy in the prior art method for cutting and processing special-shaped holes, the utility model provides a special tooling for processing special-shaped holes by wire cutting.

The special tooling for processing special-shaped holes by wire cutting of the utility model includes a tooling main body, an inwardly recessed workpiece positioning groove is arranged above the tooling main body, and the workpiece positioning groove is composed of a first support surface, a second support surface and a third support surface. Enclosed and the first support surface is inclined relative to the horizontal plane; on the first support surface, a through hole for wire cutting resistance wire movement is provided along the vertical direction; wherein, the angle at which the first support surface is inclined relative to the horizontal plane is determined by the workpiece to be processed The axis of the special-shaped hole to be processed after being placed on the support surface shall be perpendicular to the horizontal plane; the cross-section of the through hole on the first support surface is larger than that of the special-shaped hole.

Further, the first support surface, the second support surface and the third support are vertically connected in pairs.

Further, rounded corners are provided at the connection between the second support surface and the third support surface.

The beneficial effect of the utility model is that the special tooling for processing special-shaped holes by wire cutting is: the tooling is set on the wire cutting machine tool to position the workpiece, and the processing of the special-shaped holes on the workpiece is realized on the wire cutting equipment, with high processing precision, simple structure, convenient and practical.

Description of drawings

Figure 1 is a schematic diagram of a workpiece with a special-shaped hole.

Fig. 2 is a structural schematic diagram of the utility model special-purpose tooling for processing special-shaped holes by wire cutting.

Fig. 3 is a diagram of the usage state of the workpiece in Fig. 1, which is processed by the special tooling for processing special-shaped holes by wire cutting in Fig. 2.

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

detailed description

1 is a special-shaped hole, 2 is a tooling body, 3 is a workpiece positioning groove, 4 is a first support surface, 5 is a second support surface, 6 is a third support surface, 7 is a through hole, and 8 is a rounded corner.

Please refer to Fig. 2 and Fig. 3 together. The special tooling for processing special-shaped holes by wire cutting includes a tooling main body 2, and an inwardly recessed workpiece positioning groove 3 is arranged above the tooling main body 2. The workpiece positioning groove 3 consists of the first supporting surface 4, the second The second support surface 5 and the third support surface 6 are enclosed and the first support surface 4 is inclined relative to the horizontal plane. The inclination angle of the first support surface 4 relative to the horizontal plane is set according to the inclination angle of the axis of the special-shaped hole 1 of the workpiece relative to the horizontal plane, that is, the first support The angle at which the surface 4 is inclined relative to the horizontal plane is based on the fact that the axis of the special-shaped hole 1 to be processed after the workpiece to be processed is placed on the support surface is perpendicular to the horizontal plane. On the first support surface 4, a through hole 7 for the movement of the wire cutting resistance wire is provided along the vertical direction. The through hole 7 is set according to the position of the special-shaped hole 1 , and the through hole 7 is coaxial with the special-shaped hole 1 , and the cross-section of the through-hole 7 is larger than that of the special-shaped hole 1 . The angle of inclination between the first support surface 4, the second support surface 5 and the third support is set according to the shape of the workpiece. , so the first support surface 4 , the second support surface 5 and the third support are vertically connected in pairs. Further, rounded corners 8 are provided at the junction of the second support surface 5 and the third support surface 6 .

When in use, first fix the frock main body 2 on the wire cutting machine tool. After installation, the lower surface of the frock main body 2 is closely combined with the horizontal workbench, and the first support surface 4 maintains an inclination angle with the horizontal workbench. The special-shaped hole 1 of the workpiece to be processed is pre-processed, that is, a pre-processed through hole can be drilled in advance at the position where the special-shaped hole 1 needs to be processed on the workpiece by equipment such as a lathe. Then the pre-processed workpiece is placed in the workpiece positioning groove 3, and the electrode wire of the wire cutting machine passes through the through hole 7 and the pre-processed through hole of the workpiece. At this time, the workpiece is in an inclined state, and the special-shaped hole 1 to be processed is in a vertical position, so that the machining of the special-shaped hole 1 of the workpiece can be completed by turning on the wire cutting machine with high machining accuracy.

The beneficial effect of the utility model is that the special-shaped tooling for processing special-shaped holes by wire cutting is: the tooling is arranged on the wire-cutting equipment to locate the workpiece, and the processing of the workpiece with special-shaped holes on the wire-cutting device is realized, and the processing precision is high, the structure is simple, and it is convenient and practical.

Claims (3)

1. a line cutting processing irregularly-shaped hole special tooling, it is characterized in that: comprise frock main body, above described frock main body, be provided with the workpiece locating slot caving inward, described workpiece locating slot is surrounded by the first supporting surface, the second supporting surface and the 3rd supporting surface and described the first supporting surface relative level face tilt; The through hole of wired cutting resistance wire motion is vertically set on described the first supporting surface; Wherein, be as the criterion vertical with horizontal plane of axis that the angle of the first supporting surface relative level face tilt is intended the irregularly-shaped hole of processing after being placed on this supporting surface with workpiece to be machined; On described the first supporting surface, the cross section of through hole is large compared with the cross section of irregularly-shaped hole.

2. line cutting processing irregularly-shaped hole special tooling according to claim 1, is characterized in that: described the first supporting surface, the second supporting surface and the 3rd vertically connect between supporting between two.

3. line cutting processing irregularly-shaped hole special tooling according to claim 1, is characterized in that: be provided with fillet at described the second supporting surface and described the 3rd supporting surface junction.