CN215279940U - Double-edge boring cutter bar for deep hole machining and turning of parts - Google Patents

Abstract

The utility model discloses a double-edged boring cutter bar for deep hole machining and turning of parts, which comprises a tightening cutter bolt, a C-shaped cutter body groove, a through hole, a cooling liquid groove, a boring cutter bar body, an extension bar and a boring cutter handle, wherein the boring cutter handle is of a cuboid structure, the left end of the boring cutter handle is connected with the extension bar in a threaded connection mode, the left side of the extension bar is connected with the boring cutter bar body in a threaded connection mode, the boring cutter bar body is provided with the through hole, the left end of the boring cutter bar body is provided with the C-shaped cutter body groove, the C-shaped cutter body groove is connected with two groups of external blades through the tightening cutter bolt, the boring cutter bar body is provided with the cooling liquid groove, the left end of the cooling liquid groove is provided with two branch grooves, the end parts of the two branch grooves correspond to two corners of the C-shaped cutter body groove, the utility model has the advantages of ingenious structural design, is suitable for the part machining and boring with various depths and widths, simple clamping and reduces the labor intensity, time and labor are saved, the working efficiency is improved, and the machining precision and the surface quality of the boring hole are ensured.

Description

Double-edge boring cutter bar for deep hole machining and turning of parts

Technical Field

The utility model relates to a boring processing technology field specifically is a twolip boring cutter pole for part BTA turning.

Background

The boring machine is a machine tool which mainly uses a boring cutter to bore a prefabricated hole of a machined workpiece, generally, the boring cutter of the boring machine rotates to move mainly, the boring cutter or the workpiece moves to move in a feeding mode, the boring machine is mainly used for machining a high-precision hole or finishing multiple holes in a one-time positioning mode, in addition, other machining surfaces related to hole finishing machining can be machined, even the boring machine which uses different cutters and accessories is used for drilling, milling and the like has higher machining precision and surface quality than a drilling machine, meanwhile, the market boring depths are different, if the lengths of boring cutter rods and the boring machining depths correspond to one another, the labor cost is increased undoubtedly, when the boring machine bores a cast large hole, the machining allowance of the single-edge boring cutter is large, the boring efficiency is low, the single-edge moves in a reciprocating mode, the service lives of the boring rod and the cutter blades are influenced, and the precision of the machined hole is also influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a twolip boring cutter pole for part BTA turning, not only the simple easy operation of tool changing process satisfies the bore hole of different width and degree of depth, guarantees the machining precision and the surface quality of bore hole simultaneously, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a twolip boring cutter arbor for part deep hole machining turning, including tight cutter bolt, C type cutter body groove, the through-hole, the cooling cistern, boring cutter arbor body, extension bar and boring handle of a knife, the boring handle of a knife is the cuboid structure, boring handle of a knife left end is connected with the extension bar through threaded connection's mode, the extension bar left side is connected with boring cutter arbor body through threaded connection's mode, be equipped with the through-hole on the boring cutter arbor body, boring cutter arbor body left end is equipped with C type cutter body groove, C type cutter body groove is connected with outside two sets of blades through tight cutter bolt, and be equipped with wide 5 mm's cooling cistern on the boring cutter arbor body, cooling cistern left end is two branch grooves, the tip of two branch grooves is corresponding with two turnings in C type cutter body groove.

Furthermore, the boring cutter bar body is provided with a corresponding cutting end surface at the upper end of the C-shaped cutter bar groove, and the boring cutter bar body is of a cylindrical structure formed by double layers of steel.

Further, the extension bar includes the external screw thread post, and external screw thread post right-hand member is equipped with the extension bar body, and extension bar body right side is equipped with the recess, and the screw thread in the extension bar body recess is corresponding with the screw thread of external screw thread post.

Furthermore, all edges and corners in the C-shaped cutter body groove, the boring cutter rod body, the extension bar and the boring cutter handle are of chamfer structures.

Compared with the prior art, the beneficial effects of the utility model are that: this a twolip boring cutter arbor for part BTA turning has following benefit:

1. the utility model discloses on set up C type cutter body groove, utilized tight sword bolt to fix outside two sets of blades and C type cutter body groove to realize multiple specification and dimension's boring cutter, even the aperture variation in size in prefabricated hole, need frequently change different boring cutters, only need when trading the boring cutter at every turn through tight sword bolt revolve out can, make and trade the process simpler, reduce workman intensity of labour.

2. The utility model discloses on set up the cooling cistern, the cooling cistern flows the coolant liquid to boring cutter blade point portion position, and the position of boring cutter blade cutting promptly carries out deep-hole machining or aperture at the boring cutter blade and adds man-hour, carries out the cooling lubrication to the boring cutter, can not only guarantee that the progress and the size and the form and position tolerance of bore hole all reach the process design requirement, avoids the blade overheated and wearing and tearing simultaneously, prolongs the life of blade.

2. The utility model discloses on set up the extension bar, suitable extension bar is selected to the processing bore hole degree of depth as required, constitutes the extension bar of different length through the screw-thread fit of external screw thread post with the extension bar body promptly to this machined part that adapts to various hole depths increases the application range of device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

in the figure: 1 cutter tightening bolt, 2C type cutter body groove, 3 through holes, 4 cooling liquid grooves, 41 branching grooves, 5 boring cutter rod bodies, 6 extension bars, 61 external thread columns, 62 extension bar bodies and 7 boring cutter handles.

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.

Referring to fig. 1-2, the present invention provides a technical solution: a double-edge boring cutter bar for deep hole machining and turning of parts comprises a cutter tightening bolt 1, a C-shaped cutter body groove 2, a through hole 3, a cooling liquid tank 4, a boring cutter bar body 5, an extension bar 6 and a boring cutter handle 7, wherein the boring cutter handle 7 is of a cuboid structure, the left end of the boring cutter handle 7 is connected with the extension bar 6 in a threaded connection mode, the left side of the extension bar 6 is connected with the boring cutter bar body 5 in a threaded connection mode, the through hole 3 is formed in the boring cutter bar body 5, the weight of the boring cutter bar body 5 can be reduced by the through hole 3 under the condition that the strength and the axial rigidity of the boring cutter bar body 5 are guaranteed, the C-shaped cutter body groove 2 is formed in the left end of the boring cutter bar body 5, two groups of external blades and the C-shaped cutter body groove 2 are fixed by the cutter tightening bolt 1, therefore, boring cutters with various specifications and sizes are realized, even if the hole diameters of prefabricated holes are different in size, different boring cutters need to be frequently replaced, only by screwing out the cutter tightening bolt 1 when the boring cutters are replaced each time, the changing process is simpler, the labor intensity of workers is reduced, the C-shaped cutter body groove 2 is connected with two groups of external blades through a cutter tightening bolt 1, a cooling liquid groove 4 with the width of 5mm is arranged on the boring cutter rod body 5, the left end of the cooling liquid groove 4 is provided with two branch grooves 41, the end parts of the two branch grooves 41 correspond to two corners of the C-shaped cutter body groove 2, namely the two branch grooves 41 correspond to the boring cutter point connected with the C-shaped cutter body groove 2, so that the cooling liquid in the cooling liquid groove 4 flows to the position of the boring cutter point, namely the cutting position of the boring cutter point, when the cutter rod is used for boring to process deep holes or small holes, the cooling liquid cools and lubricates the blades, the progress, the size and the form and position tolerance of boring holes can be ensured to meet the process design requirements, the blades are prevented from being worn due to overheating, the service life of the blades is prolonged, the production efficiency is improved, the corresponding cutting end surfaces are arranged at the upper end, positioned on the C-shaped cutter body groove 2, of the boring cutter rod body 5, the boring cutter bar body 5 is connected with an external boring cutter blade through a cutter tightening bolt 1, the deviation of a screw hole of the cutter tightening bolt 1 corresponding to the external boring cutter is less than 0.03mm so as to achieve the purpose of complete enough force tensioning, thereby preventing the phenomena of cutter vibration and looseness during use, a small amount of butter is injected into the cutter tightening bolt 1 before the boring cutter is installed so as to avoid the phenomenon of rust in the interior under a long-time working state, the boring cutter bar body 5 is a cylindrical structure formed by double-layer steel, the boring cutter bar body 5 is formed by internal high-speed steel and external tungsten steel, the boring cutter bar body 5 formed by the method has good rigidity and good shock resistance, and cannot be distorted and deformed due to excessive transverse stiffening force, the extension bar 6 comprises an external threaded column 61, an extension bar body 62 is arranged at the right end of the external threaded column 61, a groove is arranged at the right side of the extension bar body 62, and threads in the groove of the extension bar body 62 correspond to threads of the external threaded column 61, processing bore hole degree of depth as required and selecting suitable extension bar 6, the extension bar 6 of different length is constituteed through the screw-thread fit of external screw thread post 61 with extension bar body 62 promptly to this machined part that adapts to various hole depths, increases the application range of device, and each edges and corners in C type cutter body groove 2, boring cutter arbor body 5, extension bar 6 and the boring handle of a knife 7 is the chamfer structure, makes things convenient for the light discharge in later stage, more effectual improvement shock resistance simultaneously, the utility model discloses structural design is ingenious, is applicable to the part bore hole processing of multiple degree of depth and width, and simple easy operation is changed to the clamping, reduces intensity of labour, not only labour saving and time saving, improvement work efficiency, has guaranteed the machining precision and the surface quality of bore hole simultaneously, increase of service life.

When in use: firstly, selecting the proper length of the extension bar 6 according to the bore depth, namely, the proper length of the extension bar 6 is formed by connecting the external thread column 61 and the extension bar body 62 through threads, simultaneously selecting the proper boring cutter blade, injecting a small amount of butter into a screw hole corresponding to the cutter tightening bolt 1 before installing the boring cutter blade to avoid the phenomenon of internal rust in a long-time working state, then placing two groups of boring cutter blades at two corners of a C-shaped cutter body groove 2, simultaneously controlling the deviation of the screw hole corresponding to the cutter tightening bolt 1 and the screw hole corresponding to an external boring cutter blade within 0.03mm to achieve the purpose of completely enough force tensioning, thereby preventing the phenomena of cutter vibration and looseness in the use process, then fixedly connecting the boring cutter blade with the boring cutter bar body 5 through the cutter tightening bolt 1, and fixedly connecting the boring cutter 7 with external equipment after the fixation is completed, when cutting and boring are carried out, the flow direction of the cooling liquid in the branch groove 41 at the left end of the cooling liquid groove 4 corresponds to the tool tip of the boring tool, so that the cooling liquid in the cooling liquid groove 4 flows to the position of the tool tip of the boring tool, namely the cutting position of the tool tip of the boring tool, and when the boring tool bar carries out deep hole or small hole machining, the cooling liquid cools and lubricates the blade, so that the process, the size and the form and position tolerance of boring can be guaranteed to meet the process design requirements, meanwhile, the blade is prevented from being worn due to overheating, the service life of the blade is prolonged, and the production efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a twolip boring cutter pole for part BTA turning, includes tight cutter bolt (1), C type cutter body groove (2), through-hole (3), cooling fluid bath (4), boring cutter pole body (5), extension bar (6) and boring cutter handle (7), its characterized in that: boring handle of a knife (7) are the cuboid structure, boring handle of a knife (7) left end is connected with extension bar (6) through threaded connection's mode, extension bar (6) left side is connected with boring cutter arbor body (5) through threaded connection's mode, be equipped with through-hole (3) on boring cutter arbor body (5), boring cutter arbor body (5) left end is equipped with C type cutter body groove (2), C type cutter body groove (2) are connected with two sets of blades of outside through tight sword bolt (1), and be equipped with wide 5 mm's cooling cistern (4) on boring cutter arbor body (5), cooling cistern (4) left end is two branch grooves (41), the tip of two branch grooves (41) is corresponding with two turnings of C type cutter body groove (2).

2. The double-edged boring tool bar for deep hole machining and turning of parts as claimed in claim 1, wherein: the boring cutter bar body (5) is positioned at the upper end of the C-shaped cutter body groove (2) and is provided with a corresponding cutting end face, and the boring cutter bar body (5) is of a cylindrical structure formed by double layers of steel.

3. The double-edged boring tool bar for deep hole machining and turning of parts as claimed in claim 1, wherein: extension bar (6) are equipped with extension bar body (62) including external screw thread post (61), external screw thread post (61) right-hand member, and extension bar body (62) right side is equipped with the recess, and the screw thread in extension bar body (62) recess is corresponding with the screw thread of external screw thread post (61).

4. The double-edged boring tool bar for deep hole machining and turning of parts as claimed in claim 1, wherein: all edges and corners in the C-shaped cutter body groove (2), the boring cutter bar body (5), the extension bar (6) and the boring cutter handle (7) are of chamfer structures.

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