CN219443753U - Clamp for machining hard alloy multi-inclined-hole nozzle by wire cutting - Google Patents

Abstract

The utility model provides a fixture for machining a hard alloy multi-inclined-hole nozzle by wire cutting. The fixture is characterized in that a workpiece inserting cavity is formed in the middle of the fixture base body, a lower locating inclined plane and a fastening bolt hole are formed in one end of the bottom of the fixture base body, a pressing plate surface and an upper locating inclined plane are formed in one end of the top of the fixture base body, a machining hole, a three-hole machining groove, a six-hole machining groove, a four-hole machining groove, a five-hole machining groove and a cutting base hole are formed in the top of the fixture base body, the cutting base hole is communicated with the machining hole, an included angle of 5 degrees is formed between the upper locating inclined plane on the fixture and the vertical plane of the fixture base body, and an included angle of 5 degrees is formed between the lower locating inclined plane and the horizontal plane of the fixture base body. The clamp has the advantages that through reasonably designing each processing groove at the top of the clamp base body, the problem that when the inclined holes of the nozzles are cut and processed, the angle of a workpiece can be swung and the indexing and cutting of the workpiece can be carried out is solved, and the multiple-specification and multiple-inclined-hole nozzles can be processed by using one set of clamp, so that the aim of multiple purposes of one set of clamp is fulfilled.

Description

Clamp for machining hard alloy multi-inclined-hole nozzle by wire cutting

Technical Field

The utility model relates to the field of tool clamps, in particular to a clamp for machining a hard alloy multi-inclined-hole nozzle by wire cutting.

Background

At present, wear-resistant and corrosion-resistant nozzles used in the market are generally made of cemented carbide, and the cemented carbide nozzle sintered has smaller finished outer circle, longer inner hole of the nozzle required to be processed and larger length-diameter ratio. The prior art has no method of finishing through drill bit machining or grinding machining, and can only carry out slow wire feeding or fast wire feeding machining through linear cutting equipment, but the linear cutting equipment generally can only cut and machine straight holes of a nozzle, can not cut inclined holes of the nozzle, and can not carry out indexing cutting on the nozzle. If the nozzle inclined holes of 3-12 equal parts are required to be cut on the nozzle, the machining cannot be finished at all by the existing machining equipment, and the problem that the workpiece cannot swing in angle exists when the indexing head is adopted for machining. Therefore, a set of special fixture is urgently needed to be designed, and the problems that when the inclined holes of the nozzle are machined through online cutting, the angle of a workpiece can be swung to be machined and the indexing cutting of the workpiece can be carried out are solved.

Disclosure of Invention

The utility model aims to provide a fixture for machining a hard alloy multi-inclined-hole nozzle by using wire cutting. The technical problems to be solved by the utility model are as follows: the special fixture with reasonable design is adopted, so that the problems that when the inclined holes of the nozzle are cut and machined, the angle of a machined workpiece can be swung, indexing cutting of the workpiece can be performed, 3-N inclined holes can be machined on the nozzle by using one set of fixture, and the like are solved.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a fixture for machining a cemented carbide multi-bevel nozzle with wire cutting, comprising: the fixture comprises a fixture base body, three-hole machining grooves, machining holes, a cutting base hole, an upper positioning inclined plane, a six-hole machining groove, a four-hole machining groove, a pressing plate surface, a five-hole machining groove, a fastening bolt, a limiting plate, a workpiece inserting cavity and a lower positioning inclined plane, wherein the middle part of the fixture base body is provided with the workpiece inserting cavity, one end of the bottom of the fixture base body is provided with the lower positioning inclined plane, the other end of the bottom of the fixture base body is provided with the fastening bolt hole, one end of the top of the fixture base body is provided with the pressing plate surface, the other end of the fixture base body is provided with the upper positioning inclined plane, the machining holes are formed in the middle of the top of the fixture base body, the three-hole machining groove, the six-hole machining groove, the four-hole machining groove, the five-hole machining groove and the cutting base hole are respectively formed along the circumference of the machining holes, and the cutting base hole is communicated with the machining holes.

The upper locating inclined plane on the clamp forms an included angle of 5 degrees with the vertical plane of the clamp base body, and the lower locating inclined plane forms an included angle of 5 degrees with the horizontal plane of the clamp base body.

And the limiting plate of the clamp is connected with the fastening bolt hole at the bottom of the clamp base body through a fastening bolt.

And 3-N processing grooves are respectively formed in the top of the clamp along the circumference of the processing hole according to the requirements of processing workpieces.

The fixture can be used for processing inclined spray holes on nozzles with different lengths by using fastening bolts with different lengths and increasing or reducing the number of limiting plates.

Compared with the prior art, the utility model has the beneficial effects that:

1. the clamp solves the problems that when the inclined holes of the nozzle are cut and processed, the angle of a workpiece can be swung and the indexing and cutting of the workpiece can be performed by reasonably designing each processing groove at the top of the clamp base body;

2. the clamp is vertically positioned and horizontally positioned by utilizing the upper positioning inclined plane and the lower positioning inclined plane, is connected with processing equipment through a pressing plate surface, and is fastened on a processing platform of the equipment through a pressing plate on the equipment, so that the clamp cannot shake during processing;

3. according to the fixture, a workpiece is inserted into the fixture through the workpiece insertion hole, the limiting plate and the fastening bolts are used for limiting and fixing, and through the use of the fastening bolts with different lengths and the increase or decrease of the number of the limiting plates, a set of fixtures can be used for processing inclined holes on nozzles with different lengths, and meanwhile, the processing precision of the nozzles is improved;

4. the fixture is suitable for machining 3-N inclined holes on the nozzle, so that one set of fixture can be used for machining a plurality of specifications and inclined holes of the nozzle, and the aim of multiple purposes of one set of fixture is fulfilled;

5. the clamp greatly reduces the cost of nozzle machining, shortens the time for machining nozzles with different inclined holes, improves the machining efficiency, and reduces the labor intensity of operators.

Drawings

FIG. 1 is a schematic top view of a multi-angled hole nozzle clamp;

FIG. 2, a schematic diagram of a main cross-sectional structure of a multi-inclined hole nozzle clamp;

fig. 3 is a schematic top view of the limiting plate.

In the figure: 1. the fixture comprises a fixture base body, 2, three-hole machining grooves, 3, machining holes, 4, a cutting base hole, 5, an upper positioning inclined plane, 6, six-hole machining grooves, 7, four-hole machining grooves, 8, a pressing plate surface, 9, five-hole machining grooves, 10, fastening bolts, 11, a limiting plate, 12, a workpiece inserting cavity, 13, a lower positioning inclined plane, 14 and bolt holes.

Description of the embodiments

The technical scheme of the utility model is further clearly and completely described below with reference to the accompanying drawings and examples.

Referring to fig. 1-3, the preparation and assembly of the fixture are characterized in that a workpiece insertion cavity 12 is formed in the middle of a selected fixture base body 1 according to the technological requirement and the dimensional requirement of a multi-inclined-hole nozzle, a fastening bolt hole is formed in one end of the bottom of the fixture base body 1, and a lower positioning inclined plane 13 is formed in the other end of the bottom of the fixture base body 1. The clamp comprises a clamp body 1, a clamp plate surface 8, and an upper positioning inclined surface 5. The processed upper positioning inclined plane 5 forms an included angle of 5 degrees with the vertical plane of the clamp base body 1, and the lower positioning inclined plane 13 forms an included angle of 5 degrees with the horizontal plane of the clamp base body 1. Machining holes 3 are machined in the middle of the top of the clamp base body 1, three-hole machining grooves 2, six-hole machining grooves 6, four-hole machining grooves 7, five-hole machining grooves 9 and cutting base holes 4 are machined along the circumference of the machining holes 3, and the cutting base holes 4 are communicated with the machining holes 3. The limiting plate 11 is connected to the jig base 1 through fastening bolt holes by fastening bolts 10. The assembled multi-inclined hole nozzle clamp is ready for use.

When the multi-inclined-hole nozzle clamp is used, the multi-inclined-hole nozzle clamp is placed on an operation platform of processing equipment, and the multi-inclined-hole nozzle clamp is pressed and stabilized on the operation platform by a pressing plate on the processing equipment through a pressing plate surface 8 on the clamp base body 1. The multi-inclined-hole nozzle clamp is horizontally adjusted through the lower positioning inclined plane 13, the multi-inclined-hole nozzle clamp is vertically adjusted through the upper positioning inclined plane 5, and the multi-inclined-hole nozzle clamp is tightly pressed by a pressing plate on processing equipment after adjustment is completed, so that the multi-inclined-hole nozzle clamp does not shake during processing. Loosening the fastening bolt 10 at the bottom of the clamp base body 1, poking the limiting plate 11, exposing the workpiece inserting cavity 12 on the clamp base body 1, inserting the nozzle workpiece to be processed into the workpiece inserting cavity 12, restoring the limiting plate 11 to the original position, and screwing the fastening bolt 10, so that the limiting plate 11 positions and fastens the workpiece.

When the nozzle workpiece is machined, firstly, determining that a plurality of inclined holes need to be machined in the workpiece, for example, three-hole machining grooves 2 need to be used for machining three inclined holes, four-hole machining grooves 7 and … … need to be used for machining four inclined holes, and the like. During machining, cutting lines on the machining equipment enter through the cutting base holes 4, and corresponding machining grooves are used for axially machining the workpiece according to the number of holes to be machined until the inclined holes are machined.

If the workpiece with other holes is required to be processed, the workpiece is only required to be inserted into the cavity 12 and replaced by a new workpiece to be processed, and then the workpiece is processed, and the new workpiece is installed in the same process without replacing a new clamp. If the workpieces with other hole numbers do not need to be processed, the clamp is only required to be detached from the operation platform.

The above description is only a non-limiting embodiment of the utility model, but numerous examples can be derived, which can be made by a person skilled in the art without departing from the inventive concept and without inventive effort, and which fall within the scope of protection of the utility model.

Claims (4)

1. A fixture for machining a cemented carbide multi-bevel nozzle with wire cutting, comprising: the fixture comprises a fixture base body (1), three-hole machining grooves (2), machining holes (3), a cutting base hole (4), an upper positioning inclined plane (5), six-hole machining grooves (6), four-hole machining grooves (7), a pressing plate surface (8), five-hole machining grooves (9), fastening bolts (10), limiting plates (11), a workpiece inserting cavity (12) and a lower positioning inclined plane (13), and is characterized in that: the fixture is characterized in that a workpiece inserting cavity (12) is formed in the middle of the fixture base body (1), a lower positioning inclined plane (13) is formed in one end of the bottom of the fixture base body (1), a fastening bolt hole is formed in the other end of the fixture base body, a pressing plate surface (8) is arranged at one end of the top of the fixture base body (1), an upper positioning inclined plane (5) is arranged at the other end of the fixture base body, a machining hole (3) is formed in the middle of the top of the fixture base body (1), three-hole machining grooves (2), six-hole machining grooves (6), four-hole machining grooves (7), five-hole machining grooves (9) and cutting base holes (4) are formed in the circumference of the machining hole (3) respectively, and the cutting base holes (4) are communicated with the machining hole (3).

2. The fixture for machining a cemented carbide multi-inclined hole nozzle by wire cutting according to claim 1, wherein: an included angle of 5 degrees is formed between the upper locating inclined surface (5) on the clamp and the vertical surface of the clamp base body (1), and an included angle of 5 degrees is formed between the lower locating inclined surface (13) and the horizontal surface of the clamp base body (1).

3. The fixture for machining a cemented carbide multi-inclined hole nozzle by wire cutting according to claim 1, wherein: the limiting plate (11) of the clamp is connected with the fastening bolt hole at the bottom of the clamp base body (1) through the fastening bolt (10).

4. The fixture for machining a cemented carbide multi-inclined hole nozzle by wire cutting according to claim 1, wherein: and 3-N processing grooves are respectively formed in the top of the clamp along the circumference of the processing hole (3) according to the requirements of processing workpieces.