CN207681509U - A kind of fine-tuning boring cutter - Google Patents

Abstract

The utility model relates to a finely adjustable boring tool. It includes a knife rod and a knife body with a blade on the upper end. The left end of the knife rod is provided with a thread, and the right end of the knife rod is equipped with a knife body. The lower side of the knife bar is provided with a knife body spring pressing piece, one end of the knife body spring pressing piece is assembled on the knife bar through a screw, and the other end is elastically connected to the lower end of the knife body; The upper side of the bar is equipped with a tool body setting block. The side of the tool body tool setting block with feet is the fixed part, which is fixed on the tool bar by screws, and the other side is the tool setting part, which is connected with the blade at the upper end of the tool body. Positioning contact connection; because there is a knife body spring pressure plate on the knife body to automatically position the knife body, and a detachable knife setting positioning block on the knife body, the knife body can be accurately set. It has the advantages of simple and novel structure, convenient, fast and accurate adjustment operation.

Description

A finely adjustable boring tool

technical field

The utility model relates to the technical field of metal parts processing tools, in particular to a finely adjustable boring tool.

Background technique

After the product design is stable, mass production and processing will be carried out. At this time, various special processing tools are needed. For the fine boring of some metal parts, if large-scale production is carried out, it is necessary to purchase a large number of finely adjustable boring tool holders, which is costly; while purchasing a fixed-size one-piece cutter body, its size cannot be adjusted, and the accuracy cannot reach Dimensional requirements for fine boring.

Contents of the invention

The purpose of the utility model is to overcome the disadvantages of the boring tool in the prior art, and provide a low-cost boring tool with simple and reasonable structure, light weight, sufficient rigidity, and convenient adjustment (fine-tuning) of the processing size.

The utility model comprises a cutter bar and a cutter body with a blade at the upper end. The left end of the cutter bar is provided with threads for installation and connection with processing equipment. The right end of the cutter bar is equipped with a cutter body, and the cutter body passes through the cutter body installation groove. The hole is connected with the cutter bar, and the cutter body installation slot is a rectangular through hole perpendicular to the axial direction of the cutter bar, and is movable with the cutter body. On the cutter bar, there is a pair of cutter bodies perpendicular to the cutter body installation slot hole. A fastening screw hole, the cutter body is fixed in the cutter body mounting slot on the cutter rod through the set screw and the cutter body tightening screw hole on the cutter rod.

In the utility model, a knife body spring pressing piece is provided on the lower side of the knife rod with one end of the knife body, and one end of the knife body spring pressing piece is provided with a shrapnel through hole, and the knife body spring pressing piece passes through the shrapnel through hole. 1. The shrapnel fastening screw holes and screws pre-set at the corresponding positions of the knife bar are assembled on the knife bar, and the other end of the spring pressing piece of the knife body is elastically contacted and connected with the lower end of the knife body.

In the utility model, on the upper side of the knife rod with one end of the knife body, a knife body counter block is provided. The knife body counter block is in an inverted "L" shape, and the knife body counter block has a side with a foot. It is a fixed part, and is provided with a pair of through holes. The knife body counter block is fixed on the knife bar through the through holes, the screw holes and screws preset at the corresponding position of the knife bar, and the other part of the knife body counter block The side is the tool setting part, which is connected with the blade positioning and contacting on the upper end of the tool body.

In the present utility model, a cutter body pressing block is provided between the inner end of the hexagon socket set screw and the cutter body.

The utility model, the step of its adjusting method comprises:

(A) Place the cutter body with the blade in the installation slot of the cutter body, install the set screw, and fix the cutter body;

(B) Install the tool body setting block on the tool holder through screws;

(C) Install the end of the knife body spring pressing piece with the through hole of the shrapnel on the knife rod through the screw, and the other end of the knife body spring pressing piece presses the end of the knife body;

(D) Loosen the inner hexagonal set screw, at this time, the cutter body slides upwards under the force of the cutter body spring pressure piece, and after the tip of the blade on the upper end of the cutter body contacts the cutter body against the knife block, tighten the inner The hexagonal set screw fixes the cutter body and completes the tool setting;

(E) After the tool setting is completed and before the boring tool is used for processing, the tool body tool setting block should be removed.

In the utility model, in order to complete the adjustment of the size of the boring hole, it is necessary to prepare tool setting blocks of various sizes. When adjustment is required, the tool setting blocks of different sizes are replaced to perform tool setting, and the size of the boring hole can be fine-tuned.

The utility model has the following characteristics: because the knife body is provided with a knife body spring pressure plate for automatic positioning of the knife body on the knife bar, and there is a detachable knife setting positioning block on the knife bar, the knife body can be accurately set. There is no boring tool that adopts this tool setting method on the market. This method can be used for tool setting conveniently and quickly, and the processing size can already be determined during tool setting. And it has the advantages of simple and novel structure, convenient, fast and accurate adjustment operation.

Description of drawings

Figure 1 and Figure 2 are schematic diagrams of the structure (adjustment operation state) of the embodiment, wherein Figure 1 is the front view, and Figure 2 is the A-A sectional view of Figure 1.

Figure 3-Figure 5 is a schematic diagram of the structural principle of the tool holder of the embodiment, wherein Figure 3 is a front view, Figure 4 is a top view (partial) relative to Figure 3 , and Figure 5 is a B-B sectional view of Figure 3 .

Fig. 6-Fig. 7 are schematic diagrams of the structural principle of the cutter body setting block of the embodiment, wherein Fig. 6 is a sectional view of C-C in Fig. 7, and Fig. 7 is a bottom view relative to Fig. 6 .

Figures 8-9 are schematic diagrams of the structure and principle of the knife body spring pressing piece of the embodiment, wherein Figure 8 is a front view, and Figure 9 is a top view relative to Figure 8 .

In the figure, 1, cutter bar; 2, hexagon socket head flat head screw; 21, shrapnel fastening screw hole; 3, knife body spring pressing piece; 31, shrapnel through hole; 4, hexagon socket head cap screw; 41, screw Hole; 5, cutter body to the knife block; 51, through hole; 6, blade; 7, cutter body; 71, cutter body installation slot; 8, cutter body pressing block; 9, hexagon socket set screw; 91, Cutter body fastening screw hole.

Detailed ways

Referring to accompanying drawings 1-9, a finely adjustable boring tool includes a cutter bar 1 and a cutter body 7 with a blade 6 at the upper end. The left end of the cutter bar 1 is provided with threads for installation and connection with processing equipment. The right end of 1 is equipped with a cutter body 7, and the cutter body 7 is connected with the cutter bar 1 through a cutter body installation slot 71, wherein the cutter body installation slot 71 is a rectangular through hole perpendicular to the axial direction of the cutter bar 1, and Cooperating with the cutter body 7, on the cutter bar 1, a pair of cutter body fixing screw holes 91 perpendicular to the cutter body mounting slot hole 71 are provided, and the cutter body 7 passes through the hexagon socket set screw 9, the cutter bar 1 The cutter body tightening screw hole 91 on the upper body tightens the cutter body 7 in the cutter body installation slot 71 on the cutter bar 1. A cutter body pressing block 8 is provided between the inner end of the hexagon socket set screw 9 and the cutter body 7 . On the lower side of the knife bar 1 that is equipped with one end of the knife body 7, a knife body spring pressing piece 3 is provided, and one end of the knife body spring pressing piece 3 is provided with a shrapnel through hole 31, and the knife body spring pressing piece 3 passes through the shrapnel The through hole 31, the shrapnel fastening screw hole 21 and the hexagon socket flat head screw 2 pre-set on the corresponding position of the knife bar 1 are assembled on the knife bar 1, and the other end of the knife body spring pressing piece 3 is connected with the knife body 7. The lower end (the end without the blade) is elastically contacted. On the upper side of the knife bar 1 with one end of the knife body 7, there is a knife body setting block 5, which is an inverted "L" shape, and the knife body setting block 5 has a foot. The side is a fixed part, and is provided with a through hole 51, and the knife body tool setting block 5 is fixed on the knife bar through the through hole 51, the screw hole 41 preset at the corresponding position of the knife bar 1 and the hexagon socket head screw 4. 1, the other side of the tool body tool setting block 5 is the tool setting part, which is positioned in contact with the blade 6 at the upper end of the tool body 7.

The adjustment method of the fine-tuning boring tool described in this embodiment, the steps include:

(A) Put the cutter body 7 with the blade 6 in the cutter body installation slot 7, install the hexagon socket set screw 9, and fix the cutter body 7;

(B) Install the tool body setting block 5 on the tool bar 1 through the hexagon socket head screw 4;

(C) Install one end of the spring pressing piece 3 of the knife body with the through hole 31 of the shrapnel on the knife bar 1 through the hexagon socket flat head screw 2, and the other end of the spring pressing piece 3 of the knife body presses the end of the knife body 7;

(D) Loosen the hexagon socket set screw 9. At this time, the cutter body 7 slides upwards under the force of the cutter body spring pressure piece 3, and the tip of the blade 6 on the upper end of the cutter body 7 touches against the cutter body against the knife block. After 5, tighten the hexagon socket set screw 9 to fix the cutter body 7 and complete the cutter setting;

(E) After the tool setting is completed, the tool body tool setting block 5 should be removed before the boring tool is used for processing.

Claims (4)

1. A finely adjustable boring tool, characterized in that it includes a cutter bar (1) and a cutter body (7) with a blade (6) at the upper end, and the left end of the cutter bar (1) is provided with a thread for processing The equipment is installed and connected, and the right end of the knife bar (1) is equipped with a knife body (7). The body installation slot (71) is a rectangular through hole perpendicular to the axial direction of the cutter body (1), and it is in motion with the cutter body (7). (71) The vertical cutter body tightening screw hole (91), the cutter body (7) connects the cutter body (7) through the fixing screw, the cutter body tightening screw hole (91) on the cutter bar (1) Tightly fixed in the cutter body installation slotted hole (71) on the cutter bar (1). 2. The finely adjustable boring tool according to claim 1, characterized in that: on the lower side of the tool bar (1) equipped with one end of the tool body (7), there is a tool body spring pressing piece (3), One end of the knife body spring pressing piece (3) is provided with a shrapnel through hole (31), and the knife body spring pressing piece (3) passes through the shrapnel through hole (31) and is preset at the corresponding position of the knife bar (1). The shrapnel tightening screw hole (21) and the screw are assembled on the cutter bar (1), and the other end of the cutter body spring pressing piece (3) is elastically contacted and connected with the lower end of the cutter body (7). 3. The finely adjustable boring tool according to claim 1 or 2, characterized in that: on the upper side of the tool bar (1) with one end of the tool body (7), a tool body setting block (5 ), the tool body setting block (5) is an inverted "L" shape, the side of the knife body tool setting block (5) with the foot is the fixed part, and is provided with a through hole (51), the tool body tool setting block (5) (5) Through the through hole (51), the screw hole (41) and the screw that are preset at the corresponding position of the knife bar (1) are fixed on the knife bar (1). The other side is the tool setting part, which is positioned and contacted with the blade (6) on the upper end of the tool body (7). 4. The finely adjustable boring tool according to claim 3, characterized in that: a cutter body pressing block (8) is provided between the inner end of the set screw and the cutter body (7).