TWI426968B - Silent tool - Google Patents

Description

Inner diameter anti-vibration knife

The present invention relates to a tool holder suitable for use in a lathe, and more particularly to a tool holder for an inner diameter turning tool.

The conventional inner diameter turning tool or its shank can be referred to the TWM385422 or TWM293103 patent, and the blade of the turning tool is fixed at the front end of the round bar-shaped shank for processing. The shank is mainly used for the round hole. The inner diameter surface is processed by the processor. In order to further process the inside of the thin and deep hole, the above patents all provide a vibration damping device to reduce the vibration of the tool during the processing to obtain a better processing effect.

However, in the prior patent, although the shank is provided with a vibration damping device, the seat for fixing the blade is still tightly fixed to the outermost body shank, so that the rigidity and elasticity of the shank material are still easy to drive. The blades vibrate together, making them useless.

In the prior art section of the '422 patent, the Japanese Patent No. 2979823 is mentioned. In the 823' patent case, the shank includes an inner rod and an outer tube, and the inner rod and the outer tube are interposed. There is another material, and the knife seat is fixed to the inner rod to reduce the vibration. However, in the holder, the inner rod and the outer tube are separated from each other, which will reduce the rigidity of the holder, and the blade is easy to process. Produces undesired displacements with low processing precision.

The main object of the present invention is to provide a shank for another inner diameter turning tool which can be used to reduce the vibration of the blade or the shank during processing.

In order to achieve the above object, the present invention provides an inner diameter seismic knives comprising an outer tube, a connecting member, a rod body, a fixing member and a shock absorbing material.

The outer tube is sequentially formed with a first section, a second section, a third section and a fourth section along the axial direction thereof, and the outer tube defines an accommodating space.

The connecting member has an abutting portion and a buffering portion, the buffering portion extending axially from the abutting portion, the connecting member is inserted into the outer tube from the first portion, and the outer peripheral surface of the abutting portion is abutted against The inner diameter surface of the first segment is inserted into the second segment, and the outer circumferential surface of the buffer segment and the inner diameter surface of the second segment are separated from each other.

The rod body has a first end and a second end. The rod body is received in the accommodating space. The first end is fixed to the free end of the buffering section, and the second end is axially oriented to the fourth section. extend.

The shock absorbing material is filled and solidified in the accommodating space, and the shock absorbing material is located between the buffer section and the second section and between the rod body and the outer tube.

Thereby, the inner diameter anti-vibration knife provided by the invention can be used for processing the fixed seat and the blade, and the shock absorbing material between the connecting piece and the outer tube is abutted between the connecting piece and the outer tube, when processing, The shock absorbing material can resist the vibration generated during processing and reduce the vibration frequency of the blade or other components. Moreover, the connecting member is supported by the end hexagonal mechanism against the outer tube, thereby avoiding the movement of the connecting member during processing, thereby avoiding the arbitrary tool. The movement enables the invention to have both low vibration and high precision use effects.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 and FIG. 2, the present invention provides an inner diameter anti-vibration tool holder in which a tool holder can be assembled and the blade 1 is further clamped and fixed for machining operations such as inner diameter turning.

The inner diameter anti-vibration knife provided by the invention comprises an outer tube 2, a connecting member 3, a rod body 4 and a shock absorbing material 6, and further comprises a fixing member 5, two screwing members 7 and a knife seat 8.

Referring to FIG. 3, the outer tube 2 is sequentially formed with a first segment 21, a second segment 22, a third segment 23 and a fourth segment 24 along its axial direction. a space in which the outer tube 2 can additionally extend axially from the first section 21 to form an extension 25. Preferably, the first section 21 has a hexagonal cross section, and the hexagonal cross-sectional structure of the present invention utilizes The first section 21 is designed to be hexagonal, which can offset the torque generated by the corners of the outer tube when rotating, which can effectively prevent the connecting piece from moving during processing, thereby avoiding arbitrary movement of the cutter; or, in the present invention, In a possible embodiment, the section of the first section 21 can also be changed to other non-circular shapes.

With reference to FIG. 1A , the connecting member 3 has an abutting portion 31 and a buffering portion 32 , and the connecting member 3 can be formed with a first through hole 33 , and the buffering portion 32 extends axially from the abutting portion 31 . The connecting member 3 is inserted into the outer tube 2 from the first section 21, wherein the abutting section 31 has a cross-sectional shape corresponding to the first section 21, that is, in the embodiment, the abutting section In the case of a hexagon, the outer circumferential surface of the abutting section 31 is abutted against the inner diameter surface of the first section 21, so that the abutting section 31 and the first section 21 cannot rotate relative to each other. The buffer section 32 is inserted into the second section 22, and the outer circumferential surface of the buffer section 32 is separated from the inner diameter surface of the second section 22, and more specifically, the buffer section 32 has a smaller cross-sectional profile than the second section. The inner diameter surface of the buffer portion 32 is such that the buffer portion 32 does not abut against the second portion 22. Preferably, the cross-sectional profile of the buffer portion 32 is tapered toward an end away from the abutting portion 31, so that the buffer portion 32 is folded. Conical, the inner diameter of the second section 22 is tapered toward an end away from the first section 21, so that the inner diameter surface of the second section 22 is also tapered. Further preferably, the buffer section 32 is The radial distance of the second section 22 increases from the first section 21 to the third section 23. The connecting member 3 can be axially extended from the abutting portion 31 to form a fixing portion 34. The extending portion 25 is sleeved on the fixing portion 34. The fixing portion 34 can be provided with two fixing holes 341 for other components. The assembly is fixed.

The rod body 4 has a first end 41 and a second end 42. The rod body 4 can be formed with a second through hole 43. The rod body 4 is accommodated in the accommodating space, and the first end 41 is fixed on the shank The free end of the buffer section 32 connects the second through hole 43 with the first through hole 33, and the second end 42 extends axially to the fourth section 24, preferably, the rod body 4 and the buffer section 32 is formed with a thread, and the rod 4 can be screwed to the connecting member 3.

The fixing member 5 is disposed on the fourth portion 24, the fixing member is formed with a third through hole 51, and the fixing member 5 is fixed to the second end 42 of the rod body 4, so that the third through hole 51 and the first portion The two through holes 43 are connected to each other. Preferably, the fixing member 5 and the rod body 4 are respectively formed with threads, and the fixing member 5 can be screwed to the rod body 4. The fixing member 5 can be additionally provided with two screw holes 52 in the accommodating space, and the two screw holes 52 respectively communicate with the accommodating space.

The shock absorbing material 6 is filled and solidified in the accommodating space, so that the shock absorbing material 6 is located between the buffer section 32 and the second section 22 and between the rod body 4 and the outer tube 2, preferably, the shock absorption Material 6 can be made of PU (polyurethane), which has a high damping value and can suppress vibration when subjected to external force. However, it is not acceptable to use other materials or plastic system with similar physical properties. . In the manufacturing process, the liquid or gel-like shock absorbing material can be filled into the accommodating space from one of the screw holes 52 of the fixing member 5. After the shock absorbing material is solidified, the shock absorbing material can be fixed in the accommodating material. In space.

The two screwing members 7 are respectively screwed to the two screw holes 52, so that the two screwing members 7 and the shock absorbing material 6 abut against each other.

The holder 8 is fixed to the connecting member 3, and more specifically, the holder 8 is fixed to the fixing portion 34 by two screws 81. The holder 8 can be formed with a fourth through hole 82. The fourth through hole 82 is in communication with the first through hole 33.

With the above device, referring to FIG. 4, the present invention can be clamped and fixed, and a blade 1 is clamped and fixed to the blade holder 8. The blade 1 can be fixed by the present invention for further processing, and is particularly applicable to The inner diameter cutting processing operation processes the inner surface of the hole of the workpiece 9 , wherein the third through hole 51 of the fixing member 5 is adapted to inject the cutting fluid, so that the cutting fluid flows through the second through hole 43 , the first through hole 33 and the first The four perforations 82 are then discharged from the vicinity of the blade 1 for cooling.

According to the above, when the present invention performs the machining operation, the blade 1 may be vibrated due to the processing, in particular, when the axial length between the clamping portion of the outer tube 2 and the blade 1 is larger than the diameter of the outer tube 2, such as 6 to 10 times, even when the axial length is greater than 10 times the diameter, the blade 1 and the present invention may generate a large amplitude of vibration as a whole. At this time, the shock absorbing material 6 of the present invention is used to sandwich and abut the connecting member. The structural arrangement between the outer tube 2 and the outer tube 2 is such that the shock absorbing material 6 cushions the vibration generated by the blade 1 and the components, thereby reducing the vibration of the end blade 1, thereby preventing the blade 1 from being broken due to vibration or the surface of the workpiece 9 being vibrated. In addition, the connecting member 3 in the present invention abuts against the outer tube 2, and the arbor 8 and the blade 1 can be prevented from being arbitrarily displaced during the processing. Preferably, the hexagon or other non-use can be utilized. The circular shape is arranged such that the connecting member and the outer tube cannot be easily rotated relative to each other, thereby improving the torsional resistance of the present invention, and maintaining better processing precision and obtaining an excellent use effect.

In addition, in the actual use of the present invention, the two screwing members 7 can be used for the user to adjust the screw lock, and the shock absorbing material 6 is squeezed by the two screwing members 7 to make the shock absorbing material 6 have different sizes. The degree of tension is used for the user to adjust to the state to be used, and has a convenient use effect.

Referring to FIG. 5 to FIG. 7 , the present invention is also available for the user to replace a plurality of different types of tool holders 8 . The tool holder 8 may also include a adapter 83 . Preferably, the holder 8 is provided. The contact surface with both of the connectors 3, or the surface of the adapter 83, may be provided with embossed lines to improve the fixing ability between the holder 8 and the connector 3.

In summary, the present invention can reduce the vibration frequency of the blade or the shank in the inner diameter turning operation while maintaining the machining precision, so that the user can further increase the axial length of the shank, and can be used for the depth. Larger holes are processed, which is a progressive effect. It meets the patent requirements stipulated by the national patent law. Patent applications are filed according to law. Applicants are requested to approve patents as soon as possible.

1. . . blade

2. . . Outer tube

twenty one. . . First paragraph

twenty two. . . Second paragraph

twenty three. . . Third paragraph

twenty four. . . Fourth paragraph

25. . . Extension

3. . . Connector

31. . . Abutting section

32. . . Buffer segment

33. . . First perforation

34. . . Fixed section

341. . . Fixed hole

4. . . Rod body

41. . . First end

42. . . Second end

43. . . Second perforation

5. . . Fastener

51. . . Third perforation

52. . . Screw hole

6. . . Shock absorber

7. . . Screw fitting

8. . . Knife holder

81. . . Screw

82. . . Fourth perforation

83. . . Adapters

9. . . Workpiece

Figure 1 is a perspective exploded view of the present invention.

Figure 1A is a perspective view of another perspective of the connector of the present invention.

Figure 2 is a cross-sectional view of the present invention.

Figure 3 is a cross-sectional view of the outer tube of the present invention.

Figure 4 is a schematic view showing the state of use of the present invention.

Figure 5 is a perspective view of the present invention.

Figure 6 is a partial enlarged perspective view of the present invention.

Figure 7 is a partially exploded perspective view of another embodiment of the present invention.

1. . . blade

2. . . Outer tube

twenty one. . . First paragraph

25. . . Extension

3. . . Connector

33. . . First perforation

34. . . Fixed section

341. . . Fixed hole

4. . . Rod body

41. . . First end

42. . . Second end

43. . . Second perforation

5. . . Fastener

51. . . Third perforation

52. . . Screw hole

7. . . Screw fitting

8. . . Knife holder

81. . . Screw

82. . . Fourth perforation

Claims (8)

An inner diameter anti-vibration knife handle comprising: an outer tube, the outer tube is sequentially formed with a first section, a second section, a third section and a fourth section along the axial direction thereof, the outer tube enclosing a volume a connecting member having an abutting portion and a buffering portion, the buffering portion extending axially from the abutting portion, the connecting member being inserted from the first portion to the outer tube, the outer portion of the abutting portion The surface of the buffer is inserted into the second section, and the outer circumference of the buffer section is separated from the inner diameter surface of the second section; a rod body has a first And a second end, the rod body is received in the accommodating space, the first end is fixed to the free end of the buffering section, and the second end extends axially toward the fourth section; a shock absorbing material is filled And solidifying in the accommodating space, the shock absorbing material is located between the buffer section and the second section and between the rod body and the outer tube; a knife seat fixed to the connecting piece, the knife seat Provided for clamping by a blade; wherein the outer tube extends axially from the first section to form an extension portion, and the connecting member is axially extended from the abutting portion. Fixing section, disposed in the extension of the fixing sleeve section, the blade holder fixed to the fixing section. The inner diameter seismic knives of claim 1, wherein the abutting section has a corresponding non-circular cross section with the first section. The inner diameter anti-vibration tool holder according to claim 2, wherein the abutting section and the first section have a hexagonal cross-sectional shape. The inner diameter anti-vibration knife of claim 1, wherein the section of the buffer section is far away One end of the abutting section is tapered to make the buffer section tapered, and the inner diameter of the second section is tapered toward an end away from the first section, so that the inner diameter surface of the second section is tapered. The inner diameter anti-vibration tool according to claim 2, wherein the cross section of the buffer section is tapered toward an end away from the abutting section, the buffer section is tapered, and the inner diameter of the second section faces away from the first section. One end is tapered such that the inner diameter surface of the second section is tapered. An inner diameter anti-vibration knife handle comprising: an outer tube, the outer tube is sequentially formed with a first section, a second section, a third section and a fourth section along the axial direction thereof, the outer tube enclosing a volume a connecting member having an abutting portion and a buffering portion, the buffering portion extending axially from the abutting portion, the connecting member being inserted from the first portion to the outer tube, the outer portion of the abutting portion The surface of the buffer is inserted into the second section, and the outer circumference of the buffer section is separated from the inner diameter surface of the second section; a rod body has a first And a second end, the rod body is received in the accommodating space, the first end is fixed to the free end of the buffering section, and the second end extends axially toward the fourth section; a shock absorbing material is filled And solidifying in the accommodating space, the shock absorbing material is located between the buffer section and the second section and between the rod body and the outer tube; a fixing member and a second screwing member, the fixing member is disposed at the first In the fourth stage, the fixing member is fixed to the second end of the rod body, and the fixing member is provided with two screw holes in the accommodating space, and the two screw holes are respectively separated from the accommodating space Communicating, the two threaded members are screwed to the two screw holes and abuts against the shock absorption member. The inner diameter anti-vibration knife of claim 6, further comprising a seat, the holder It is fixed to the connecting member, and the holder is fixed by a blade. The inner diameter anti-vibration knife handle according to claim 6, wherein the connecting member defines a first through hole, the rod body defines a second through hole, the second through hole communicates with the first through hole, and the fixing member defines a third hole. The perforation is in communication with the second perforation.