Eccentric boring cutter with inner cooling function

Abstract

The utility model belongs to the technical field of boring cutters, particularly relates to an eccentric boring cutter with an internal cooling function, and aims to solve the problems that a large amount of heat is generated inside and outside a boring cutter blade after long-time work in the use process of some boring cutters, the external boring cutter blade can be conveniently cooled, and the service life of the boring cutter is prolonged. In order to solve the problem that the blade is not completely cooled due to the fact that some boring cutters are not provided with cooling structures in the blade, the interior of the blade cannot be cooled, and the blade is not completely cooled, the following scheme is provided: the device comprises a boring cutter seat, a boring cutter rod is connected above the boring cutter seat, and the blade is slidably mounted above the boring cutter rod; a sliding groove matched with the blade is formed in the connecting position of the boring cutter rod and the blade, the sliding groove is formed in the boring cutter rod, and a cooling pipe is fixedly installed in the blade. According to the boring cutter, the cooling pipe is fixedly installed in the blade, so that cooling liquid can be conveyed into the blade through the cooling pipe after the boring cutter is used, and finally the cooling liquid is discharged out of the blade.

Description

Technical Field

[0001] The utility model relates to a boring tool, in particular to an eccentric boring tool with internal cooling, belonging to the technical field of boring tools. Background Art

[0002] A boring tool is a type of boring tool, generally with a round shank, but some have a square shank. It is mainly used for internal hole processing, hole expansion, profiling, etc. It has one or two cutting ends and is specially used for rough processing, semi-finishing or finishing of existing holes. An eccentric boring tool is a type of boring tool with an adjustable cutting end.

[0003] In the prior art, an eccentric adjustable boring tool disclosed in announcement number CN206622643U includes a tool sleeve and a boring bar. The tool sleeve has an eccentric hole. One end of the boring bar is fixed in the eccentric hole by a set screw, and a blade is welded to the other end of the boring bar. The boring bar is fixed in the eccentric hole of the tool sleeve by a set screw, so that the boring bar supports the tool sleeve shaft to limit its axial movement, thereby achieving the characteristics of simple structure, reliable precision, easy manufacturing, low cost and easy production of the boring tool, and can quickly solve the problem of manufacturing high-precision aperture tools.

[0004] However, during the use of the above scheme, since no cooling structure is set inside, no cooling effect can be achieved. Therefore, after the blade is processed for a long time, the heat generated by the blade itself can only be cooled by external cooling water on the blade surface, while the heat inside the blade cannot be discharged or cooled faster, etc., which can easily lead to incomplete cooling of the blade. In view of this, an eccentric boring tool with internal cooling is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides an eccentric boring tool with internal cooling to solve the problem that the above-mentioned boring tool has no cooling structure inside and cannot achieve any cooling effect. Therefore, after the blade is processed for a long time, the heat generated by the blade itself can only be cooled by external cooling water on the blade surface, while the heat inside the blade cannot be discharged or cooled faster, which easily leads to the problem of incomplete cooling of the blade.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: an eccentric boring tool with internal cooling, comprising a boring tool seat, and a boring tool rod is connected to the upper part of the boring tool seat;

[0007] A blade is slidably mounted on the upper side of the boring bar, a sliding groove matching the blade is provided at the connection between the boring bar and the blade, and the sliding groove is provided on the boring bar;

[0008] A cooling pipe is fixedly installed inside the blade, and one end of the cooling pipe away from the blade is fixedly connected to a foldable hose. One end of the foldable hose is fixedly installed on the boring tool seat, and the other end is fixedly connected to the cooling pipe. The cooling pipe and the foldable hose are L-shaped, and the blade is located at the cooling pipe. A plurality of flow cavities are opened, and the flow cavities are opened inside the blade.

[0009] As a further solution of the utility model: a movable cavity matching the cooling tube is provided at the connection between the boring bar and the boring seat and the cooling tube, and the movable cavity is provided on the boring bar and the boring seat.

[0010] As a further solution of the utility model: a rotating structure is arranged below the blade, and the rotating structure includes a rotating knob, and the rotating knob is rotatably installed on one side of the boring bar, and a rotating rod is fixedly installed on the side of the rotating knob close to the boring bar, and one side of the rotating rod passes through the boring bar and the slide groove, and a thread is arranged on the outer side of the rotating rod, and a slider is installed on the thread.

[0011] As a further solution of the utility model: the sliding block is fixedly installed below the blade.

[0012] As a further solution of the utility model: a first baffle is fixedly installed at the rear end of the sliding block, a first baffle groove matching the first baffle groove is provided at the connection between the sliding groove and the first baffle plate, and the first baffle groove is provided on the boring bar.

[0013] As a further solution of the utility model: a second retaining groove is provided on a side of the slide groove away from the first retaining groove, a plurality of groups of compression springs are fixedly installed inside the second retaining groove, and the other end of the compression spring is fixedly connected to the second baffle.

[0014] As a further solution of the present invention: the second baffle is elastically installed inside the second baffle groove.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model fixes a cooling pipe inside the blade so that the boring tool can transmit coolant to the inside of the blade through the cooling pipe after use, so that the coolant flows inside the blade and is finally discharged from the inside of the blade, thereby achieving a cooling effect on the inside of the blade and the outer surface of the blade through the circulation of the coolant.

[0017] 2. The utility model rotates the knob of the rotating structure to drive the rotating rod to rotate, and then utilizes the threaded connection between the rotating rod and the slider to drive the upper blade to move its position, thereby achieving an eccentric effect during blade processing and reducing the diameter of the blade processing. In addition, during the movement of the slider, the first baffle plate and the second baffle plate can shield the slide groove to prevent excessive debris from entering the interior of the slide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the chute of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the cross section of the boring bar of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the side of the utility model.

[0022] In the figure: 1. boring tool seat; 2. boring tool rod; 3. blade; 4. slide groove; 5. cooling pipe; 6. folding hose; 7. circulation chamber; 8. moving chamber; 9. rotating structure; 901. knob; 902. rotating rod; 903. slider; 10. first baffle; 11. first baffle groove; 12. second baffle groove; 13. compression spring; 14. second baffle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0024] like Figures 1 to 4 As shown, an eccentric boring tool with internal cooling comprises a boring tool seat 1, and a boring tool rod 2 is connected to the upper side of the boring tool seat 1;

[0025] A blade 3 is slidably mounted on the upper side of the boring bar 2, and a slide groove 4 matching the blade 3 is provided at the connection between the boring bar 2 and the blade 3, and the slide groove 4 is provided at the boring bar 2;

[0026] A cooling pipe 5 is fixedly installed inside the blade 3, and one end of the cooling pipe 5 away from the blade 3 is fixedly connected to a folding hose 6. One end of the folding hose 6 is fixedly installed on the boring tool seat 1, and the other end is fixedly connected to the cooling pipe 5. The cooling pipe 5 and the folding hose 6 are L-shaped structures, and the blade 3 is located at the cooling pipe 5. A plurality of flow cavities 7 are opened, and the flow cavities 7 are opened inside the blade 3.

[0027] As a further solution of the utility model: a movable cavity 8 matching the cooling tube 5 is provided at the connection between the boring bar 2 and the boring seat 1 and the cooling tube 5 , and the movable cavity 8 is provided on the boring bar 2 and the boring seat 1 . Embodiment 2

[0028] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0029] As a further solution of the utility model: a rotating structure 9 is arranged below the blade 3, and the rotating structure 9 includes a rotating knob 901, which is rotatably installed on one side of the boring bar 2, and a rotating rod 902 is fixedly installed on the side of the rotating knob 901 close to the boring bar 2, and one side of the rotating rod 902 passes through the boring bar 2 and the slide groove 4, a thread is arranged on the outer side of the rotating rod 902, and a slider 903 is installed on the thread, and the rotating structure 9 can realize the movement effect of the slider 903 and the blade 3 above the slider 903.

[0030] As a further solution of the present invention: the slider 903 is fixedly installed below the blade 3, so that the blade 3 can be driven to rotate when the slider 903 moves.

[0031] As a further solution of the utility model: a first baffle plate 10 is fixedly installed at the rear end of the slider 903, and a first baffle groove 11 matching the first baffle plate 10 is opened at the connection between the slide groove 4 and the first baffle plate 10. The first baffle groove 11 is opened on the boring bar 2. The first baffle groove 11 and the first baffle plate 10 can achieve the effect of blocking debris from entering the slide groove 4 when processing one side of the blade 3.

[0032] As a further solution of the utility model: a second baffle groove 12 is opened on the side of the slide groove 4 away from the first baffle groove 11, and multiple groups of compression springs 13 are fixedly installed inside the second baffle groove 12. The other end of the compression spring 13 is fixedly connected to the second baffle plate 14. The second baffle groove 12 and the second baffle plate 14 can prevent debris from entering the slide groove 4 when the blade 3 is processed.

[0033] As a further solution of the present invention, the second baffle plate 14 is elastically installed inside the second baffle groove 12, so that the second baffle plate 14 is always attached to the slider 903, thereby preventing a large amount of debris from entering the interior of the slide groove 4.

[0034] Working principle: first, press the second baffle 14, and directly insert the slider 903 and the blade 3 into the slide groove 4 of the boring tool rod 2, and when the slider 903 is inserted into the slide groove 4, one side of the cooling tube 5 is also inserted into the blade 3, and then the rotating rod 902 of the rotating structure 9 is threaded into one side of the boring tool rod 2, so that the rotating rod 902 is threadedly connected with the slider 903, and the positions of the rotating rod 902 and the knob 901 are fixed, and then the boring tool can be used. After the temporary processing is completed, the knob 901 can be rotated to drive the rotating rod 902, and the threaded connection between the rotating rod 902 and the slider 903 is used to make the slider 903 drive the blade 3 to move, so that the blade 3 is moved to realize the eccentric effect of the boring tool and adjust the size of the processing diameter of the blade 3. At the same time, during the movement of the blade 3, the first baffle 10 at the rear end of the blade 3 slides inside the first baffle groove 11, and the second baffle 14 at the front end is always attached to one side of the slider 903 due to the pushing effect of the compression spring 13. In this way, the first baffle 10 and the second baffle 14 are used to prevent debris from entering the chute 4 during the processing of the blade 3. Finally, after the boring tool processing is completed, the coolant is transmitted to the inside of the circulation cavity 7 of the blade 3 through the folded hose 6 and the cooling tube 5, and the coolant is transmitted to the outside of the blade 3 through the internal circulation cavity 7, thereby realizing the cooling effect on the inside and outside of the blade 3.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An eccentric boring tool with internal cooling, comprising a boring tool holder (1), characterized in that: A boring bar (2) is connected to the top of the boring tool seat (1); A blade (3) is slidably mounted above the boring bar (2); a slide groove (4) matching the blade (3) is provided at the connection between the boring bar (2) and the blade (3); the slide groove (4) is provided on the boring bar (2); A cooling pipe (5) is fixedly installed inside the blade (3); one end of the cooling pipe (5) away from the blade (3) is fixedly connected to a folding hose (6); one end of the folding hose (6) is fixedly installed on the boring tool seat (1), and the other end is fixedly connected to the cooling pipe (5); the cooling pipe (5) and the folding hose (6) are in an L-shaped structure; and the blade (3) is provided with a plurality of flow cavities (7) at the cooling pipe (5); and the flow cavities (7) are provided inside the blade (3).

2. An eccentric boring tool with internal cooling according to claim 1, characterized in that: A movable cavity (8) matching the cooling tube (5) is provided at the connection between the boring bar (2) and the boring seat (1) and the cooling tube (5); the movable cavity (8) is provided on the boring bar (2) and the boring seat (1).

3. The eccentric boring tool with internal cooling according to claim 1, characterized in that: A rotating structure (9) is provided below the blade (3), the rotating structure (9) comprising a rotating knob (901), the rotating knob (901) being rotatably mounted on one side of the boring bar (2), a rotating rod (902) being fixedly mounted on the side of the rotating knob (901) close to the boring bar (2), and one side of the rotating rod (902) passing through the boring bar (2) and the slide groove (4), a thread being provided on the outer side of the rotating rod (902), and a slider (903) being mounted on the thread.

4. An eccentric boring tool with internal cooling according to claim 3, characterized in that: The sliding block (903) is fixedly mounted below the blade (3).

5. The eccentric boring tool with internal cooling according to claim 3, characterized in that: A first baffle (10) is fixedly mounted on the rear end of the sliding block (903); a first baffle groove (11) matching the first baffle plate (10) is provided at the connection between the sliding groove (4) and the first baffle plate (10); and the first baffle groove (11) is provided on the boring bar (2).

6. An eccentric boring tool with internal cooling according to claim 5, characterized in that: A second retaining groove (12) is provided on a side of the slide groove (4) away from the first retaining groove (11), and a plurality of groups of compression springs (13) are fixedly installed inside the second retaining groove (12), and the other end of the compression spring (13) is fixedly connected to a second retaining plate (14).

7. An eccentric boring tool with internal cooling according to claim 6, characterized in that: The second baffle plate (14) is elastically mounted inside the second baffle groove (12).

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