High-strength water outlet type powerful numerical control cutter handle

Abstract

The utility model belongs to the technical field of numerical control machining, and discloses a high-strength water outlet type powerful numerical control cutter handle which comprises a cutter handle head, a cutter bar connecting cylinder is integrally formed at the bottom of the cutter handle head, the cutter handle head and the cutter bar connecting cylinder are of a hollow structure, a fastening sleeve is installed at the outer end of the cutter bar connecting cylinder, and a cutter bar is installed in the cutter bar connecting cylinder. A water outlet hole is formed from the center to the top end of the cutter bar, the bottom end of the water outlet hole is branched into two flow dividing openings leading to the bottom end of the cutter bar, axial inner hole grooves are distributed in the circumference of the inner wall of the cutter bar connecting cylinder and are semi-cylindrical groove bodies, the bottoms of the inner hole grooves are not communicated with the bottom of the cutter bar connecting cylinder, and the inner side face of the bottom of the cutter bar connecting cylinder is attached to the outer surface of the cutter bar. Sealing of the binding face of the connecting cylinder and the cutter bar is achieved through rotary extrusion of the fastening sleeve, water flow achieves internal cooling of the cutter bar from the inside of the cutter bar, larger water pressure can be borne through a metal sealing mode, deformation and leakage are not prone to occurring, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model belongs to numerical control processing technical field, especially relate to a high -strength water -out type powerful numerical control tool shank. BACKGROUND

[0002] Numerical control tool shank is the key part of connecting tool and machine tool spindle, is used for fixing tool, transmission cutting force and torque, ensures processing accuracy and quality. In the powerful numerical control tool shank, the inner handle is through groove, realizes the external cooling of tool through water, makes the low temperature of water to absorb the heat generated in the process of high -speed rotation and cutting of tool, makes tool keep suitable temperature, thereby improves processing accuracy and efficiency, and when tool processes deep hole, the inner cooling mode of tool can enhance the cooling effect of tool more.

[0003] The utility model discloses a water -out type powerful tool shank, including handle body, straight cylinder clamp and locking sleeve, locking sleeve fixed installation in the outer peripheral surface of handle body head, handle body head sets up cylinder clamp installation cavity, handle body tail sets up water outlet, and water outlet and cylinder clamp installation cavity are communicated, and straight cylinder clamp is adapted to install in cylinder clamp installation cavity, and the inboard surface of cylinder clamp installation cavity is equipped with a plurality of grooves, and the center line of groove is parallel with the center line of cylinder clamp installation cavity, and one end of groove is communicated with water outlet, and the other end of groove is outward and the handle body end is penetrated, and the inner peripheral surface of cylinder clamp installation cavity is close to the front end at handle body head and sets up a annular groove with vertical penetration of the groove, and the annular groove embeds an O type sealing ring, and the radius of O type sealing ring is greater than the radius where groove is, through the utility model, make inner cooling tool shank not in the limitation of inner cooling tool, adopt ordinary tool also can realize the cooling and chip removal effect of inner cooling tool shank. But the sealing water retaining structure of O type sealing ring is rubber, and is movable connection, if water pressure is too big, O type sealing ring can be separated from annular groove, and the cooling water leakage condition is easy to appear, secondly, the service life of O type sealing ring is limited, needs regular replacement, and O type sealing ring appears water seepage condition in the aging process, and the normal inner cooling water outlet effect of tool can also be affected. UTILITY MODEL CONTENTS

[0004] The utility model discloses a high -strength water -out type powerful numerical control tool shank, solves the tool inner cooling sealing effect of powerful numerical control tool shank in prior art is not good, and the situation that the water pressure that bears is limited and is easy to leak, and needs regular maintenance sealing and other problems.

[0005] In order to realize the above -mentioned purpose, the technical scheme that the utility model adopts is:

[0006] The utility model provides a high -strength water -out type strong numerical control handle of cutting tool, including handle head, the bottom of handle head is integrative with the handle rod connecting barrel, handle head and handle rod connecting barrel are hollow structure, the outer end of handle rod connecting barrel is equipped with the fastening sleeve, is equipped with the handle rod in the inside, the center to the top of handle rod is opened and goes out the water hole, and the water hole bottom branch is into two branch mouths to the handle rod bottom, the inner hole groove of handle rod connecting barrel inner wall is distributed with the axial, the inner hole groove is semicylindrical groove body, and the bottom is not with handle rod connecting barrel bottom through -going, and handle rod connecting barrel bottom inner side surface and handle rod outer surface are inlayed.

[0007] Preferably, the inner hole groove bottom end and handle rod connecting barrel bottom interval is 5-10mm.

[0008] Preferably, the fastening sleeve includes a threaded sleeve, a needle roller rotating body, and a circlip. The threaded sleeve is internally mounted with the needle roller rotating body. The needle roller rotating body is positioned by the circlip. The circlip is fixed in the threaded sleeve. The needle roller rotating body is in contact with the handle rod connecting barrel. The needle roller rotating body exerts radial pressure on the handle rod connecting barrel by rotating the threaded sleeve.

[0009] Preferably, the handle rod connecting barrel bottom end is fixedly installed with a lower dust cover by a bolt. The lower dust cover is located on the inside of the threaded sleeve below the needle roller rotating body.

[0010] Preferably, the handle rod connecting barrel top end is fixedly installed with an upper dust cover on the outside of the same axis. The upper dust cover is located on the outside of the threaded sleeve.

[0011] Preferably, the handle rod includes a thin handle rod. The thin handle rod is inserted into a handle rod straight cylinder clamp. The handle rod straight cylinder clamp is inserted into the handle rod connecting barrel.

[0012] Preferably, the handle rod straight cylinder clamp is a waterproof handle rod straight cylinder clamp.

[0013] Preferably, the handle head and the handle rod connecting barrel are integrally formed with a fastening ring. The fastening ring is circumferentially provided with an installation groove.

[0014] The utility model has the advantages of the prior art, which are as follows:

[0015] 1) The inner hole groove bottom is not through the handle rod connecting barrel bottom. Compared with the sealing effect of the O-shaped sealing ring, the rigidity and stability of the handle rod connecting barrel are better improved. The inner side surface of the handle rod connecting barrel bottom is inlaid with the handle rod outer surface. The sealing of the handle rod connecting barrel and the handle rod inlaid surface is realized by the rotation and extrusion of the fastening sleeve. The water flow realizes the internal cooling of the handle rod. The metal sealing mode can bear greater water pressure and is not easy to deform and leak. The service life is long.

[0016] 2) The lower dust cover and the upper dust cover can prevent iron filings and dust generated during drilling from falling into the needle roller rotating body, which causes the inconvenience of the internal needle roller rotation.

[0017] 3) When the diameter of the tool bar needs to be changed, the tool holder with different inner diameters does not need to be replaced, the thin tool bar can be installed and used through the tool bar straight cylinder clamp, and the thin tool bar can realize internal cooling through the sealing of the waterproof straight cylinder clamp. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front view of the embodiment 1 of the utility model, and

[0019] Figure 2 is the longitudinal section view of the utility model; Figure 1

[0020] Figure 3 is the assembly schematic view of the utility model; Figure 1

[0021] Figure 4 is the position schematic view of the inner hole groove of the utility model;

[0022] Figure 5 is the longitudinal section view of the embodiment 2 of the utility model, and

[0023] Figure 6 is the assembly schematic view of the utility model; Figure 5

[0024] Figure: 1, tool holder head; 11, fastening ring; 111, installation groove; 2, tool bar connecting cylinder; 21, inner hole groove; 22, upper dust cover; 3, fastening sleeve; 31, screw sleeve; 32, roller needle rotating body; 33, clamp spring; 34, lower dust cover; 35, bolt; 4, tool bar; 401, thin tool bar; 41, water outlet hole; 42, shunt; 5, tool bar straight cylinder clamp. DETAILED DESCRIPTION

[0025] In order to make the purpose, method scheme and advantages of the embodiments of the utility model more clear, the method scheme in the embodiments of the utility model is clearly and completely described, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Embodiment 1

[0027] As Figures 1-4 ​​​As shown, a high-strength water outlet type strong numerical control tool holder, including tool holder head 1, tool holder head 1 and main shaft of drilling machine plug, the tool holder head 1 bottom integrated with tool rod connecting barrel 2, to fix tool, tool holder head 1 and tool rod connecting barrel 2 integrated with fastening ring 11, the fastening ring 11 circumferential installation groove 111 is opened, through fastening tool makes tool holder and main shaft installation fixed, the tool holder head 1 and tool rod connecting barrel 2 are hollow structure, the tool rod connecting barrel 2 outer end is installed with fastening sleeve 3, inside installation has tool rod 4, through rotating fastening sleeve 3 locks the position of tool rod 4, the tool rod 4 center to top end opening has water outlet hole 41, water outlet hole 41 bottom branch into two shunt 42 and lead to tool rod 4 bottom end, through the cooling water in tool holder from shunt 42 and flow out, realize the cooling of tool rod 4, make tool rod and tool head cooling, through the auxiliary of cooling water, also avoid tool head dry cutting to cause tool head greater degree of wear, increase tool head service life, the inner wall circumferential distribution of tool rod connecting barrel 2 has axial inner hole groove 21, increase the rigidity of tool rod connecting barrel 2, the inner hole groove 21 is semicylindrical groove body, bottom is not with tool rod connecting barrel 2 bottom through, avoid the cooling water from inner hole groove 21 and flow out, guarantee cooling water from tool rod 4 inside circulation, tool rod connecting barrel 2 bottom inner side surface and tool rod 4 outer surface are in contact the inner hole groove 21 bottom and tool rod connecting barrel 2 bottom interval is 5-10mm, realize better sealing effect, also better increase the rigidity and stability of tool rod connecting barrel 2 whole.

[0028] Specifically, the fastening sleeve 3 includes a threaded sleeve 31, a roller pin rotating body 32, and a circlip 33. The threaded sleeve 31 is internally installed with the roller pin rotating body 32. The roller pin rotating body 32 is limited by the circlip 33 at the top and bottom. The circlip 33 is fixed in the threaded sleeve 31. The roller pin rotating body 32 is in contact with the tool rod connecting barrel 2. By rotating the threaded sleeve 31, the roller pin rotating body 32 applies radial pressure to the tool rod connecting barrel 2 to fix the tool rod 4 in the tool rod connecting barrel 2.

[0029] Further, the tool rod connecting barrel 2 is fixedly installed with a lower dust cover 34 at the bottom end through a bolt 35. The lower dust cover 34 is located at the inner side of the threaded sleeve 31 below the roller pin rotating body 32. The tool rod connecting barrel 2 is coaxially fixed with an upper dust cover 22 at the top end. The upper dust cover 22 is located at the outer side of the threaded sleeve 31. This prevents dust and iron filings from entering the roller pin rotating body 32, causing inconvenience to the internal roller pin.

[0030] In this embodiment, by rotating the threaded sleeve 31, the roller pin rotating body 32 applies radial elastic compression force to the tool rod connecting barrel 2, so that the inner wall of the tool rod connecting barrel 2 is tightly attached to the tool rod 4, fixing the tool rod 4. Reversing the threaded sleeve 31 allows for disassembly. The inner wall of the bottom of the tool rod connecting barrel 2 is free of the inner hole groove 21. The tool rod connecting barrel 2 is subjected to inward radial pressure, realizing sealing with the outer wall of the tool rod 4, preventing cooling water from flowing out from around the tool rod 4, and allowing cooling water to circulate inside the tool rod 4, forming an internal cooling effect.

[0031] Example 2

[0032] To make the tool holder connecting sleeve 2 universal, improvements were made to the embodiment 1 to install tool holders 4 of different diameters, such as... Figures 5-6 As shown, in this embodiment, the diameter of the thin blade 401 is smaller than that of the blade 4. The thin blade 401 is inserted into the blade straight tube clamp 5 with matching specifications. The blade straight tube clamp 5 is inserted into the blade connecting tube 2 to fix the thin blade 401.

[0033] The tool holder straight tube clamp 5 is a waterproof tool holder straight tube clamp. This allows the thin tool holder 401 to undergo internal cooling through the waterproof tool holder straight tube clamp.

[0034] In this embodiment, by rotating the screw sleeve 31, the needle roller rotating body 32 applies a radial elastic compressive force to the tool bar connecting cylinder 2, so that the inner wall of the tool bar connecting cylinder 2 is tightly fitted with the tool bar 4, thereby fixing the tool bar straight cylinder clamp 5 and the thin tool bar 401. The tool bar straight cylinder clamp 5 is a waterproof tool bar straight cylinder clamp, which enables the thin tool bar 401 to achieve an internal cooling effect.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength, water-cooled, heavy-duty CNC tool holder, comprising a tool holder head (1), wherein a tool shank connecting cylinder (2) is integrally formed at the bottom of the tool holder head (1), the tool holder head (1) and the tool shank connecting cylinder (2) are hollow structures, a fastening sleeve (3) is installed at the outer end of the tool shank connecting cylinder (2), and a tool shank (4) is installed inside, characterized in that, The water outlet hole (41) is branched into two branch flow ports (42) at the bottom end of the water outlet hole (41) and leads to the bottom end of the cutter bar (4), the inner hole groove (21) is distributed on the inner wall of the cutter bar connecting cylinder (2) in the axial direction, the inner hole groove (21) is a semicylindrical groove body, the bottom is not penetrated with the bottom of the cutter bar connecting cylinder (2), and the inner side surface of the bottom of the cutter bar connecting cylinder (2) is combined with the outer surface of the cutter bar (4).

2. The high-strength water outlet type powerful numerical control tool shank according to claim 1, characterized in that, The distance between the bottom end of the inner hole groove (21) and the bottom of the cutter bar connecting cylinder (2) is 5-10mm.

3. The high-strength water outlet type powerful numerical control tool shank according to claim 1, characterized in that, The fastening sleeve (3) comprises a screw sleeve (31), a needle roller rotating body (32) and a clamping spring (33), the needle roller rotating body (32) is installed in the screw sleeve (31), the top and bottom of the needle roller rotating body (32) are limited by the clamping spring (33), the clamping spring (33) is fixed in the screw sleeve (31), the needle roller rotating body (32) is in contact with the cutter bar connecting cylinder (2), and the needle roller rotating body (32) applies radial pressure to the cutter bar connecting cylinder (2) by rotating the screw sleeve (31).

4. The high-strength water outlet type powerful numerical control tool shank according to claim 3, characterized in that, The bottom end of the cutter bar connecting cylinder (2) is fixedly installed with the lower dust cover (34) through the bolt (35), and the lower dust cover (34) is located on the inner side of the screw sleeve (31) below the needle roller rotating body (32).

5. The high-strength water outlet type powerful numerical control tool shank according to claim 3, characterized in that, The top end of the cutter bar connecting cylinder (2) is fixedly provided with the upper dust cover (22) on the outer side of the coaxial center, and the upper dust cover (22) is located on the outer side of the screw sleeve (31).

6. The high-strength water outlet type powerful numerical control tool shank according to claim 1, characterized in that, The cutter bar (4) comprises a thin cutter bar (401), the thin cutter bar (401) is inserted into the cutter bar straight cylinder clamp (5), and the cutter bar straight cylinder clamp (5) is inserted into the cutter bar connecting cylinder (2).

7. The high-strength, water-jetted, powerful CNC tool holder of claim 6, wherein, The cutter bar straight cylinder clamp (5) is a waterproof cutter bar straight cylinder clamp.

8. The high-strength water outlet type powerful numerical control tool shank according to claim 1, characterized in that, The fastening ring (11) is integrally formed between the cutter handle head (1) and the cutter bar connecting cylinder (2), and the fastening ring (11) is circumferentially provided with a mounting groove (111).

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