Tool-setting-free boring tool with rear positioning function

Abstract

The utility model belongs to the technical field of boring cutters, and particularly relates to a tool-setting-free boring cutter with a rear positioning function, aiming at solving the problems that an existing clamping position is parallel to the central axis of a handle part, and the surface of a handle is not provided with a positioning guide component. In order to solve the problem that when a handle part of a boring cutter is installed in a clamp of a numerical control grinding machine, the handle part of the boring cutter needs to be rotated in the handle part to enable a clamping position to correspond to a clamping block in the clamp, so that the boring cutter can be stably clamped, the following scheme is provided: the boring cutter comprises a cutter handle, one end of the cutter handle is provided with a positioning installation groove, and two sides of the positioning installation groove are provided with clamping grooves; a first magnetic attraction block is fixed into the cutter handle. The cutter handle is placed in the mounting hole through the positioning mounting groove and the positioning mounting block, then the first magnetic attraction block is actively attracted through the second magnetic attraction block, the positioning rod and the positioning groove are connected in an inserted mode, positioning mounting between the cutter handle and the mounting base is achieved, after the cutter handle is mounted, it can be avoided that the cutter handle is rotated again to enable the clamping groove to correspond to the clamping block, and the machining efficiency is improved. And the clamping block can clamp the clamping groove conveniently, and the effect of tool setting is achieved.

Description

Technical Field

[0001] The utility model relates to a tool-setting-free boring tool, in particular to a tool-setting-free boring tool with rear positioning, belonging to the technical field of boring tools. Background Art

[0002] Boring tool is a kind of cutting tool, the most common occasion is internal hole processing, hole expansion, profiling, etc. A tool with one or two cutting parts, specially used for roughing, semi-finishing or finishing of existing holes.

[0003] In the prior art, a boring tool disclosed in announcement number CN214290886U includes a handle, a neck, a head and a blade. The handle is provided with a clamping position, which is parallel to the central axis of the handle. The chip groove is arranged at an angle to the clamping position, and the clamping position is flat, which is convenient for installing the boring tool.

[0004] When the above technical solution is in use, the shank of the boring tool is installed on the CNC grinder, and then the fixture of the CNC grinder clamps it through the clamping position. However, since the clamping position is parallel to the central axis of the shank, there is no positioning guide component on the surface of the shank. When the shank of the boring tool is installed in the fixture of the CNC grinder, the shank of the boring tool needs to be rotated inside it so that the clamping position corresponds to the clamping block in the fixture so that it can be stably clamped. In view of this, a boring tool with post-positioning and no-alignment function is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model provides a boring tool with rear positioning and no-tool-alignment in order to solve the problem that the clamping position is parallel to the central axis of the handle, the surface of the tool handle has no positioning guide assembly, and when the boring tool handle is installed in the fixture of the CNC grinder, the boring tool handle needs to be rotated inside the fixture to make the clamping position correspond to the clamping block in the fixture so that it can be stably clamped.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a boring tool with rear positioning and no need for tool alignment, comprising a tool handle, one end of which is provided with a positioning installation groove, both sides of which are provided with clamping grooves, a magnetic suction block is fixed inside the tool handle, and a positioning groove is provided on the end surface of one end of the magnetic suction block;

[0007] A mounting seat is movably installed on the outside of the knife handle through the mounting hole, a magnetic block 2 is fixed at one end of the inner wall of the mounting hole, positioning mounting blocks are fixed on both sides of the inner wall of the mounting hole, a positioning rod is fixed at one end of the magnetic block 2, a movable groove is opened inside the mounting hole, a telescopic spring is fixed inside the movable groove, and a clamping block is fixed at one end of the telescopic spring.

[0008] As a further solution of the utility model: a threaded hole is provided at one end of the clamping block, and a second fixing bolt is connected to the inner thread of the threaded hole.

[0009] As a further solution of the utility model: the mounting seat is connected to the tool handle through a positioning mounting block and a positioning mounting slot, and the clamping block is connected to the movable slot through a telescopic spring and a second fixing bolt to form a telescopic structure.

[0010] As a further solution of the utility model: the other end of the tool handle is fixedly connected with a tool head, and the outer wall of the tool head is provided with a chip removal groove.

[0011] As a further solution of the utility model: a knife groove is provided on the inner wall of the chip groove, and a limiting column is fixed on the inner wall of the knife groove.

[0012] As a further solution of the utility model: a blade is movably installed inside the knife groove, and a connecting hole is opened on the outer surface of the blade.

[0013] As a further solution of the utility model: a pressing plate is arranged above the blade, a fixing hole is opened on the outer surface of the pressing plate, and a fixing bolt is connected to the internal thread of the limiting column.

[0014] The beneficial effects of the utility model are:

[0015] The knife handle provided by the utility model is placed in the mounting hole through the positioning mounting groove and the positioning mounting block, and then the magnetic block one is actively adsorbed by the magnetic block two, so that the positioning rod is plugged into the positioning groove, thereby realizing the positioning installation between the knife handle and the mounting seat. After the knife handle is installed, it is possible to avoid rotating the knife handle again to make the clamping groove correspond to the clamping block, which is convenient for the clamping block to clamp the clamping groove, realizing the effect of no need to align the knife, thereby ensuring the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the knife bar of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the cutter head of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the mounting base of the utility model;

[0020] Figure 5 It is a cross-sectional view of the tool bar of the utility model.

[0021] In the figure: 1. tool handle; 2. tool head; 3. chip groove; 4. tool groove; 5. limit column; 6. blade; 7. connection hole; 8. pressing plate; 9. fixing hole; 10. fixing bolt 1; 11. positioning and mounting groove; 12. clamping groove; 13. magnetic block 1; 14. positioning groove; 15. mounting seat; 16. mounting hole; 17. positioning and mounting block; 18. magnetic block 2; 19. positioning rod; 20. movable groove; 21. telescopic spring; 22. clamping block; 23. threaded hole; 24. fixing bolt 2. DETAILED DESCRIPTION

[0022] 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

[0023] like Figures 1 to 5 As shown, a boring tool with rear positioning and no-tool alignment comprises a tool handle 1, a positioning installation groove 11 is provided at one end of the tool handle 1, clamping grooves 12 are provided on both sides of the positioning installation groove 11, a magnetic block 13 is fixed inside the tool handle 1, and a positioning groove 14 is provided on the end surface of one end of the magnetic block 13, and the tool handle 1 is conveniently installed in the mounting hole 16 of the mounting seat 15 through the positioning installation groove 11 and the positioning groove 14, and is engaged and plugged with the positioning installation block 17 and the positioning rod 19;

[0024] A mounting seat 15 is movably mounted on the outer side of the shank 1 through a mounting hole 16, a magnetic block 18 is fixed to one end of the inner wall of the mounting hole 16, positioning mounting blocks 17 are fixed to both sides of the inner wall of the mounting hole 16, a positioning rod 19 is fixed to one end of the magnetic block 18, a movable groove 20 is opened inside the mounting hole 16, a telescopic spring 21 is fixed inside the movable groove 20, a clamping block 22 is fixed to one end of the telescopic spring 21, the telescopic spring 21 facilitates the clamping block 22 to move in the movable groove 20, so that the bottom end of the clamping block 22 abuts against the clamping groove 12. Embodiment 2

[0025] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0026] A threaded hole 23 is formed at one end of the clamping block 22 , and a second fixing bolt 24 is connected to the inner thread of the threaded hole 23 , so that the second fixing bolt 24 can push the clamping block 22 to move in the moving groove 20 .

[0027] The mounting seat 15 is connected to the tool handle 1 by a snap-fit ​​connection through the positioning mounting block 17 and the positioning mounting groove 11, and the clamping block 22 forms a telescopic structure with the movable groove 20 through the telescopic spring 21 and the second fixing bolt 24. The tool handle 1 is placed in the mounting hole 16 through the positioning mounting groove 11 and the positioning mounting block 17, and then the magnetic block 13 is actively adsorbed by the second magnetic block 18, so that the positioning rod 19 is plugged into the positioning groove 14, so as to realize the positioning installation between the tool handle 1 and the mounting seat 15. After the tool handle 1 is installed, it is possible to avoid rotating the tool handle 1 to make the clamping groove 12 correspond to the clamping block 22, so that the clamping block 22 can clamp the clamping groove 12 to achieve the effect of no tool alignment.

[0028] The other end of the tool handle 1 is fixedly connected with a tool head 2. The outer wall of the tool head 2 is provided with a chip discharge groove 3. The chip discharge groove 3 can be used to discharge the chips cut by the boring tool on the workpiece.

[0029] The inner wall of the chip groove 3 is provided with a knife groove 4, and the inner wall of the knife groove 4 is fixed with a limiting column 5. The knife groove 4 and the limiting column 5 are used to limit the blade 6 to prevent the blade 6 from moving during use and affecting the cutting effect.

[0030] A blade 6 is movably installed inside the blade groove 4 , and a connecting hole 7 is opened on the outer surface of the blade 6 , through which the blade 6 can be conveniently sleeved on the limiting column 5 .

[0031] A pressing plate 8 is arranged above the blade 6, and a fixing hole 9 is opened on the outer surface of the pressing plate 8. The internal thread of the limiting column 5 is connected with a fixing bolt 10. The pressing plate 8 and the fixing bolt 10 can facilitate the pressing and fixing of the blade 6 in the tool groove 4, and the pressing plate 8 can prevent debris from getting stuck between the blade 6 and the chip groove 3, making it inconvenient to clean.

[0032] Working principle: Place the blade 6 through the connecting hole 7 and the limiting column 5 into the blade groove 4 on the chip groove 3 of the cutter head 2, and then place the pressing plate 8 through the fixing hole 9 onto the top of the blade 6. After placing the blade 6 and the pressing plate 8, fix the fixing bolt 10 into the limiting column 5 to fix the blade 6. This structure facilitates the replacement of a damaged blade 6. After installing the blade 6, place the shank 1 into the mounting hole 16 through the positioning mounting groove 11 and the positioning mounting block 17. After the shank 1 is placed into the mounting hole 16, the magnetic block 18 in the mounting seat 15 generates suction force on the magnetic block 13 on the end face of one end of the shank 1 that is the same size as the magnetic block 18. The magnetic block 13 is attracted by the magnetic block 18 and fits with the magnetic block 18. When the magnetic block 13 approaches the magnetic block 2 18, the positioning rod 19 and the positioning groove 14 are plugged into each other, so that the tool handle 1 is positioned and installed through the positioning installation groove 11, the positioning installation block 17, the magnetic block 13 and the magnetic block 2 18, so that the clamping groove 12 corresponds to the clamping block 22, avoiding the tool handle 1 from being rotated again to make the clamping groove 12 correspond to the clamping block 22, so as to achieve the effect of no tool alignment. After the clamping groove 12 corresponds to the clamping block 22, the fixing bolt 24 is screwed to the threaded hole 23. The clamping block 22 moves slowly in the movable groove 20 through the telescopic spring 21 as the fixing bolt 24 is screwed, so that the bottom end of the clamping block 22 moves out of the movable groove 20 and enters into the clamping groove 12 of the tool handle 1, so that the tool handle 1 can be clamped by this structure.

[0033] 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.

[0034] 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. A boring tool with rear positioning and no need for tool setting, comprising a tool handle (1), characterized in that: A positioning installation groove (11) is provided at one end of the knife handle (1), clamping grooves (12) are provided on both sides of the positioning installation groove (11), a magnetic attraction block (13) is fixed inside the knife handle (1), and a positioning groove (14) is provided on the end surface of one end of the magnetic attraction block (13); A mounting seat (15) is movably mounted on the outer side of the knife handle (1) through a mounting hole (16); a second magnetic block (18) is fixed to one end of the inner wall of the mounting hole (16); positioning mounting blocks (17) are fixed to both sides of the inner wall of the mounting hole (16); a positioning rod (19) is fixed to one end of the second magnetic block (18); a movable groove (20) is provided inside the mounting hole (16); a telescopic spring (21) is fixed inside the movable groove (20); and a clamping block (22) is fixed to one end of the telescopic spring (21).

2. A boring tool with rear positioning and no-tool-setting according to claim 1, characterized in that: A threaded hole (23) is formed at one end of the clamping block (22), and a second fixing bolt (24) is connected to the inner thread of the threaded hole (23).

3. A boring tool with rear positioning and no-tool-setting according to claim 2, characterized in that: The mounting seat (15) is snap-fitted with the knife handle (1) via a positioning mounting block (17) and a positioning mounting groove (11), and the clamping block (22) is telescopically connected with the movable groove (20) via a telescopic spring (21) and a second fixing bolt (24).

4. The boring tool with rear positioning and no-tool-setting according to claim 1, characterized in that: The other end of the tool handle (1) is fixedly connected to a tool head (2), and an outer wall of the tool head (2) is provided with a chip removal groove (3).

5. The boring tool with rear positioning and no-tool-setting according to claim 4, characterized in that: The inner wall of the chip removal groove (3) is provided with a knife groove (4), and the inner wall of the knife groove (4) is fixed with a limiting column (5).

6. A boring tool with rear positioning and no need for tool setting according to claim 5, characterized in that: A blade (6) is movably mounted inside the blade groove (4), and a connection hole (7) is provided on the outer surface of the blade (6).

7. A boring tool with rear positioning and no need for tool setting according to claim 6, characterized in that: A pressing plate (8) is arranged above the blade (6), a fixing hole (9) is provided on the outer surface of the pressing plate (8), and a fixing bolt (10) is connected to the inner thread of the limiting column (5).

Images