CN212217171U - Device for processing long hole - Google Patents

Abstract

The embodiment of the utility model provides a device for processing slot hole, the device includes: a drill bit, a drill rod and a forming blade; the drill bit includes: an inner chip removal plate drill bit and an indexable deep hole drill; the drill rod is detachably connected with the indexable deep hole drill or the inner chip removal plate drill through threads; when the drill rod is in threaded connection with the inner chip removal plate drill bit, the inner chip removal plate drill bit clamps the forming blade. The utility model discloses a this one set of device has guaranteed the machining dimension requirement and the roughness requirement of part, has solved the deep-hole machining difficult problem of three kinds of bottleneck parts.

Description

Device for processing long hole

Technical Field

The utility model relates to a device for processing the slot hole especially relates to a design of overlength shaping BTA cutter arbor.

Background

At present, in the process of processing and finishing two types of products, a plurality of ultra-long deep hole parts which are extremely difficult to process appear, so that the processing quality and the delivery completion of the products are extremely difficult, and a great obstacle is generated. In the prior art, a common cutter bar can only process parts with the length-diameter ratio of 10 times, and the requirement of deep hole processing cannot be met. Therefore, the cutter bar design of the tool for machining the overlong deep hole is needed, the parts with the length-diameter ratio of 10 times to 20 times and the diameter of more than 20 times can be machined, the three parts can be machined only by simply replacing tools, and the operation is convenient and simple.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a device for processing slot hole, through this one set of device, guaranteed the machining dimension requirement and the roughness requirement of part, solved the deep hole processing difficult problem of three kinds of bottleneck parts, workable slenderness ratio is from 10 times footpaths to 20 times footpaths to and be greater than the part in 20 times footpaths, convenient operation is simple moreover.

To achieve the above object, the present invention provides a device for processing a long hole, the device comprising: a drill bit, a drill rod and a forming blade;

the drill bit includes: an inner chip removal plate drill bit and an indexable deep hole drill;

the drill rod is detachably connected with the indexable deep hole drill or the inner chip removal plate drill through threads;

when the drill rod is in threaded connection with the inner chip removal plate drill bit, the inner chip removal plate drill bit clamps the forming blade.

Alternatively to this, the first and second parts may,

the drill rod includes: two 3m long 33mm diameter drill rods or 3m long 51mm diameter drill rods are provided.

Alternatively to this, the first and second parts may,

the indexable deep hole drill includes: four-head deep hole drill 40mm x 95mm or four-head deep hole drill 56mm x 107mm or four-head deep hole drill 60mm x 107 mm.

Alternatively to this, the first and second parts may,

an apparatus for processing a long hole includes: a conversion sleeve;

the conversion sleeve is used for connecting a drill rod with an indexable deep hole drill bit or an inner chip removal plate drill bit for clamping a formed blade.

Alternatively to this, the first and second parts may,

the conversion sleeve comprises: 40 shift collar or 56 shift collar or 60 shift collar.

Alternatively to this, the first and second parts may,

the indexable deep hole drill includes: selecting and matching blades;

the selective matching blade is positioned on one side of the indexable deep hole drill.

Alternatively to this, the first and second parts may,

the number of the matching blades is three.

Alternatively to this, the first and second parts may,

the indexable deep hole drill includes: a special guide block;

the special guide blocks are two and are positioned on the opposite sides of the matching blades.

The technical scheme has the following beneficial effects: the utility model adopts a device for processing long holes, the drill rod is detachably connected with the indexable deep hole drill or the inner chip removal plate drill bit through threads; when the drill rod is in threaded connection with the inner chip removal plate drill bit, the inner chip removal plate drill bit clamps the forming blade. Through the set of device, the processing size requirement and the roughness requirement of parts are guaranteed, the deep hole processing difficulty of three bottleneck parts is solved, the processing length-diameter ratio is from 10 times footpath to 20 times footpath, and the parts of being greater than 20 times footpath can be processed, the processing of three parts can be completed only by simple tool replacement, and the operation is convenient and simple.

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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an inner shear-pad drill bit;

FIG. 2 is a schematic view of a forming blade;

FIG. 3a is a schematic view of an indexable deep hole drill φ 40 drill bit;

FIG. 3b is a schematic view of an indexable deep hole drill φ 56 drill bit;

FIG. 3c is a schematic view of an indexable deep hole drill φ 60 drill bit;

FIG. 4 is a schematic view of a drill bit and drill rod transition piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the prior art, a plurality of ultra-long deep hole parts which are extremely difficult to machine appear, so that great difficulty is caused to the machining quality and delivery completion of products, and great obstruction is generated. The common cutter bar can only process parts with the length-diameter ratio of 10 times, and the requirement of deep hole processing cannot be met. Therefore, a device for processing long holes is needed, which can process parts with the length-diameter ratio of 10 times to 20 times and the diameter of more than 20 times, and has convenient and simple operation.

FIG. 1 is a schematic view of an inner flight bit, as shown:

fig. 2 is a schematic view of a forming blade, as shown:

when the drill rod is in threaded connection with the inner chip removal plate drill bit, the inner chip removal plate drill bit clamps the forming blade and can be used for machining inner holes with any diameters of chamfers and parts.

Fig. 2 is a schematic view of a forming blade, as shown:

FIG. 3a is a schematic view of an indexable deep hole drill φ 40 drill bit;

FIG. 3b is a schematic view of an indexable deep hole drill φ 56 drill bit;

FIG. 3c is a schematic view of an indexable deep hole drill φ 60 drill bit;

as shown in the figure:

alternatively to this, the first and second parts may,

the indexable deep hole drill includes: selecting and matching blades;

the selective matching blade is positioned on one side of the indexable deep hole drill.

Alternatively to this, the first and second parts may,

the number of the matching blades is three.

Alternatively to this, the first and second parts may,

the indexable deep hole drill includes: a special guide block;

the special guide blocks are two and are positioned on the opposite sides of the matching blades.

FIG. 4 is a schematic view of a drill bit and drill rod transition piece, as shown, including: a drill bit, a drill rod and a forming blade;

the drill bit includes: an inner chip removal plate drill bit and an indexable deep hole drill;

the drill rod is detachably connected with the indexable deep hole drill or the inner chip removal plate drill through threads;

when the drill rod is in threaded connection with the inner chip removal plate drill bit, the inner chip removal plate drill bit clamps the forming blade.

Alternatively to this, the first and second parts may,

an apparatus for processing a long hole includes: a conversion sleeve;

the conversion sleeve is used for connecting a drill rod with an indexable deep hole drill bit or an inner chip removal plate drill bit for clamping a formed blade.

Alternatively to this, the first and second parts may,

the conversion sleeve comprises: 40 shift collar or 56 shift collar or 60 shift collar.

A device for processing a long hole is specially designed for three deep hole parts, and a set of operation that a special tool processes corresponding to a special part is completed through selection and fixed connection of a drill bit, a drill rod and a forming blade.

For 40Cr material, the main size external diameter is 54mm 710mm, the inner bore step size is 40mm 598mm, 22mm 30mm, the chamfer angle is 45 degrees and the fillet requires R5, R3, the part of roughness requirement Ra6.3, its processing method is: preparing a four-head deep hole drill with the diameter of 40mm multiplied by 95mm, installing three matching blades on one side of the four-head deep hole drill and installing two special guide blocks on the opposite sides of the matching blades, enabling the four-head deep hole drill with the diameter of 33mm, the length of which is 3m, of 40mm multiplied by 95mm to be connected through threads through a 40-conversion sleeve, clamping and fixing the drill rod through a deep hole drill machine tool, and enabling the other end of a small-end three-jaw clamping part to be tightly jacked through the conical surface and the conical disc in a positioning mode. Selecting proper rotating speed and feeding on a deep hole drilling machine tool, and processing an inner hole with the diameter of 40 mm; and replacing the cutter, connecting the drill rod with the inner chip removal plate drill bit in a threaded manner, and clamping the forming blade by the inner chip removal plate drill bit. The conversion sleeve is connected with a drill rod, and an inner hole with the diameter of 22mm, a 45-degree chamfer and fillets R5 and R3 are machined;

for 40Cr material, the main dimensions of the part are 72mm multiplied by 660mm in appearance, 60mm multiplied by 530mm in inner hole, 58mm multiplied by 60mm and R5 round corner at root, the roughness of the part requires Ra3.2, and the processing method comprises the following steps: preparing a four-head deep hole drill with the diameter of 40mm multiplied by 95mm, installing three matching blades on one side of the four-head deep hole drill and installing two special guide blocks on the opposite sides of the matching blades, enabling the four-head deep hole drill with the diameter of 60mm multiplied by 107mm and the drill rod with the length of 3m to pass through threaded connection through a 60-conversion sleeve, clamping and fixing the drill rod through a deep hole drill machine tool, and enabling the other end of a small-end three-jaw clamping part to be tightly jacked through the conical surface and the conical disc in a positioning mode. Selecting proper rotating speed and feeding on a deep hole drilling machine tool, processing an inner hole with the diameter of 60mm, and processing an inner hole with the diameter of 58mm by using a 58-bit; and (3) replacing the cutter, connecting the drill rod with the inner chip removal plate drill bit in a threaded manner, clamping the forming blade by the inner chip removal plate drill bit, and processing an inner round corner R5.

For a part of 05C17Ni4Cu4Nb material, the main size of which is 80x1725, the inner hole of which requires 56mmx1425mm and Ra6.3, and the coaxiality of which requires 0.04mm, the processing method comprises the following steps: preparing a four-head deep hole drill with the diameter of 40mm multiplied by 95mm, installing three matching blades on one side of the four-head deep hole drill and installing two special guide blocks on the opposite sides of the matching blades, connecting the four-head deep hole drill with a drill rod with the diameter of 51mm and the length of 3m through a 56-conversion sleeve, clamping and fixing the drill rod by a deep hole drill machine tool, and positioning and jacking the other end of a small-end three-jaw clamping part through a conical surface and a conical disc. Selecting proper rotating speed and feeding on a deep hole drilling machine, processing an inner hole with the diameter of 56mm, replacing a cutter, connecting a drill rod with the inner chip removal plate drill bit in a threaded manner, clamping a 120-degree forming blade by the inner chip removal plate drill bit, and processing the bottom.

The technical scheme has the following beneficial effects: the utility model adopts a device for processing long holes, the drill rod is detachably connected with the indexable deep hole drill or the inner chip removal plate drill bit through threads; when the drill rod is in threaded connection with the inner chip removal plate drill bit, the inner chip removal plate drill bit clamps the forming blade. Through the set of device, the processing size requirement and the roughness requirement of parts are guaranteed, the deep hole processing difficulty of three bottleneck parts is solved, the processing length-diameter ratio is from 10 times footpath to 20 times footpath, and the parts of being greater than 20 times footpath can be processed, the processing of three parts can be completed only by simple tool replacement, and the operation is convenient and simple.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. A device for processing a long hole is characterized in that;

the device includes: a drill bit, a drill rod and a forming blade;

the drill bit includes: an inner chip removal plate drill bit and an indexable deep hole drill;

the drill rod is detachably connected with the indexable deep hole drill or the inner chip removal plate drill through threads;

when the drill rod is in threaded connection with the inner chip removal plate drill bit, the inner chip removal plate drill bit clamps the forming blade.

2. The apparatus of claim 1, wherein:

the drill rod includes: two 3m long 33mm diameter drill rods or 3m long 51mm diameter drill rods are provided.

3. The apparatus of claim 1, wherein:

the indexable deep hole drill includes: four-head deep hole drill 40mm x 95mm or four-head deep hole drill 56mm x 107mm or four-head deep hole drill 60mm x 107 mm.

4. The apparatus of claim 1, wherein: the method comprises the following steps: a conversion sleeve;

the conversion sleeve is used for connecting a drill rod with an indexable deep hole drill bit or an inner chip removal plate drill bit for clamping a formed blade.

5. The apparatus of claim 4, wherein:

the conversion sleeve comprises: 40 shift collar or 56 shift collar or 60 shift collar.

6. The apparatus of claim 1, wherein: the indexable deep hole drill includes: selecting and matching blades;

the selective matching blade is positioned on one side of the indexable deep hole drill.

7. The apparatus of claim 6, wherein:

the number of the matching blades is three.

8. The apparatus of claim 6, wherein: the indexable deep hole drill includes: a special guide block;

the special guide blocks are two and are positioned on the opposite sides of the matching blades.

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