TWM532324U - Knife bar with shock structure - Google Patents

Description

Tool bar with seismic structure

This creation relates to a machine tool part, in particular to a tool holder with a shock-absorbing structure that absorbs the vibration caused by machining.

When the rigidity of the tool bar is insufficient, a strong reaction force is suddenly encountered during cutting, or the frequency of the reaction force is close to the frequency of the tool bar, vibration is generated during the cutting of the workpiece. In general, the arbor will inevitably generate vibration when machining the workpiece. The vibration has little effect on the shorter length of the arbor. However, for some shanks that are used for machining large workpieces, the length is longer. In addition to the reduction of processing efficiency, the vibration of the workpiece surface is rough and leaves obvious processing marks, and noise is generated. However, the existing tool bar lacks the structure to suppress vibration, so it is processing large workpieces or When machining certain workpieces with high hardness, the vibration of the shank obviously has a negative impact on the processing quality.

In order to solve the problem that the existing arbor lacks the structure of absorbing vibration and causes poor processing efficiency, low processing quality and noise generation, the present invention proposes a arbor with a shock-absorbing structure, and a vibration-damping component is arranged inside the arbor body. The shock-damping component comprises a central shock-damping rod and an auxiliary shock-damping rod surrounding the central shock-damping rod. The central shock-damping rod and the auxiliary shock-absorbing rod are made of a material having a specific gravity larger than that of the cutter body, and the absorbable cutter rod is produced during processing. The vibration achieves the purpose of improving the processing quality and reducing noise.

The shank having a shock-absorbing structure proposed by the present invention includes: a shank body having a first end and a second end, and a second end of the shank body having a straight one An end surface, the cutter body includes a cutting fluid through hole and a damping assembly bore, the cutting fluid through hole is axially disposed inside the cutter body and from the first end of the cutter body toward the cutter Ontology The second end of the shock assembly is axially disposed inside the cutter body, the damping assembly bore is in communication with the cutting fluid through hole; and a seismic assembly is disposed in the shock absorber The component hole comprises a central shock rod, two cover bodies and two or more auxiliary shock rods, wherein the central shock rod has a specific gravity greater than a specific gravity of the cutter body, and the central shock rod has opposite ends Included is a passage axially extending through the interior of the central shock rod and extending to both ends of the central shock rod, the passage being in communication with the cutting fluid through hole, the two covers being respectively coupled to the At the two ends of the central shock rod, the two or more auxiliary shock rods are located between the two cover bodies and surround the central shock rod, and the specific gravity of each auxiliary shock rod is greater than the specific gravity of the cutter body, and each auxiliary system The shock rod has opposite ends, and the two ends of each auxiliary shock rod are respectively coupled to the two cover bodies; a cutter fixing assembly includes a fixing member coupled to the second end of the cutter body; a cutter assembly including a cutter that is coupled to Fastener.

The arbor of the shock-absorbing structure includes a limiting end cover, the limiting end cover includes a through hole extending axially through the limiting end cover; the shank body includes an end cap coupling hole The end cap coupling hole axially engages the shock absorbing assembly aperture, and the limiting end cover is locked to the end cover coupling hole, and the through hole communicates with the channel of the central shock rod.

The arbor of the shock-absorbing structure, wherein the central shock-damping rod comprises an intermediate section and two insertion portions, the intermediate section has opposite ends, and the two insertion portions are respectively connected coaxially Each of the two ends of the central portion of the centering rod, the two covers are respectively disposed at two insertion portions of the central shock rod, The cover bodies respectively abut against both ends of the intermediate section.

The arbor of the shock absorbing structure, wherein the central shock absorbing rod comprises two annular grooves, each insertion portion of the central damper rod has a straight end surface, and two of the insertion portions End face In the opposite direction, the two sealing grooves are respectively concentrically recessed on both end faces of the two insertion portions, and each sealing groove surrounds the passage of the central damping rod and is provided with a ring.

The shank having the shock absorbing structure, wherein each of the covers has a circumferential surface and includes a ring groove recessed on a circumferential surface of the cover body, and a sealing groove of each cover body is provided with a ring.

The shank of the shock-absorbing structure, wherein each cover has two opposite sides and includes two or more insertion grooves, and the two or more insertion grooves are recessed on one side of the cover body and Surrounding the through hole, the two engaging grooves of the cover body face each other; each auxiliary shock rod has opposite ends, and two ends of each auxiliary shock rod are respectively embedded in two of the two covers. groove.

The arbor of the shock absorbing structure, wherein the number of the two or more auxiliary shock absorbing bars is set to six, and the number of the two or more embedded grooves of the cover body is set to six, six The auxiliary shock bars are respectively embedded in the twelve embedding grooves of the two covers.

The arbor of the shock absorbing structure, wherein the central damper rod and the auxiliary damper rod are made of heavy tungsten.

The improvement of the technical means of the creation is that the shank of the shock-damping structure of the present invention has a central damping rod and an auxiliary shock-absorbing rod of the vibration-damping component which are made of a material having a specific gravity larger than that of the shank body. The vibration component can absorb the vibration generated by the tool bar during processing, and achieve the purpose of improving the processing efficiency, improving the processing quality and reducing the noise generated by the vibration during processing.

10‧‧‧Cutter body

11‧‧‧Cutting fluid through hole

12‧‧‧Connected holes

13‧‧‧Shock components tolerance

14‧‧‧End cap joint hole

15‧‧‧Intervening hole

16‧‧‧ Combined with screw holes

17‧‧‧Position pin jack

20‧‧‧seismic components

21‧‧‧Center Shock Bar

211‧‧‧Interposed Department

212‧‧‧ Middle section

213‧‧‧ channel

214‧‧‧ sealing ring

22‧‧‧ Cover

221‧‧‧through hole

222‧‧‧ embedded trough

223‧‧‧ sealing ring

23‧‧‧Auxiliary shock rod

30‧‧‧Limited end caps

31‧‧‧Perforation

40‧‧‧Tool fixing components

41‧‧‧Locating pin

42‧‧‧Fixed parts

421‧‧‧Flange

4211‧‧‧ combined with keyhole

4212‧‧‧Tear hole

4213‧‧‧ keyway

422‧‧‧ positioning segment

4221‧‧‧ Pressed to the bolt hole

423‧‧‧Intervene

43‧‧‧Binding bolts

44‧‧‧Bolt cover

50‧‧‧Tool components

51‧‧‧Tools

511‧‧‧Setting

5111‧‧‧Positioning holes

5112‧‧‧Key block card slot

512‧‧‧cutting department

5121‧‧‧Received hole

5122‧‧‧Bolt piercing

52‧‧‧Key block

53‧‧‧Tool pressing parts

531‧‧‧ 容容

532‧‧‧Bolt through hole

54‧‧‧Pressure bolt

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view showing the appearance of a preferred embodiment of the present invention.

Figure 2 is an exploded view of a portion of the preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of the shock absorbing assembly of the preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of another perspective of the preferred embodiment of the present invention.

In order to understand in detail the technical features and practical functions of the present creation, and can be realized according to the creation content, further illustrated in the preferred embodiment shown in the figure, as follows: as shown in FIG. 1, FIG. 2 and FIG. The shank of the present invention has a shank body 10, a damper assembly 20, a limit end cover 30, a tool fixing assembly 40 and a cutter assembly 50; The limit end cover 30 is disposed inside the cutter body 10 and abuts against the shock assembly 20, and the cutter fixing assembly 40 is coupled to the cutter body 10, the cutter Assembly 50 is coupled to the tool holding assembly 40.

As shown in FIG. 2 and FIG. 4, the shank body 10 has a first end and a second end, and the second end of the shank body 10 has a straight end. The shank body 10 includes a second end. a cutting fluid through hole 11, a communication hole 12, a damping assembly hole 13, an end cover coupling hole 14, an insertion section hole 15, a four coupling screw hole 16 and a four positioning pin insertion hole 17; wherein the cutting The liquid passage hole 11 is axially disposed inside the cutter body 10 and extends from the first end of the cutter body 10 toward the second end of the cutter body 10; the communication hole 12 axially engages the cutting fluid passage The aperture 11 has a smaller aperture than the aperture of the cutting fluid through hole 11; the damping assembly aperture 13 is axially disposed inside the shank body 10 and engages the communication hole 12, and the shock absorbing assembly has a hole 13 communicating with the cutting fluid through hole 11 through the communication hole 12, the hole diameter of the damping assembly hole 13 is larger than the diameter of the cutting fluid through hole 11; the end cover coupling hole 14 axially engages the vibration damping assembly The through hole 13 has an inner peripheral surface, and the inner peripheral surface of the end cover coupling hole 14 is provided with an internal thread for screwing; the insertion hole 15 is axially coupled to the hole The cover joint hole 14 extends to the end surface of the second end of the cutter body 10; as shown in FIG. 2, the joint screw hole 16 is equiangularly distributed around the insert hole 15 , and the combined screw holes 16 are respectively An end surface of the second end of the shank body 10 extends toward the first end of the shank body 10, and each of the coupling screw holes 16 has an inner circumferential surface, and the inner circumferential surface of each of the coupling screw holes 16 is provided with a thread for screwing; 4. The positioning pin insertion hole 17 is equiangularly distributed around the insertion hole 15 and each positioning pin insertion hole 17 Between adjacent two of the coupling screw holes 16, each of the positioning pin insertion holes 17 extends from the end surface of the second end of the shank body 10 toward the first end of the shank body 10.

As shown in FIG. 2, FIG. 3 and FIG. 4, the vibration-damping component 20 is received in the shock-damping component bore 13 of the cutter body 10, and the shock-damping component 20 includes a central shock-damping rod 21 and two cover bodies 22. And the auxiliary shock rod 23; wherein the central shock rod 21 has opposite ends and includes two insertion portions 211, an intermediate portion 212, a passage 213 and two seal grooves 214, and the insertion portion 211 are respectively located at two ends of the centering rod 21, each of the insertion portions 211 has a cylindrical shape and has a flat end surface, and the two end faces of the two insertion portions 211 face in opposite directions, and the intermediate portion 212 is between two Between the insertion portions 211, the intermediate portion 212 has a cylindrical shape and has opposite ends. The two ends of the intermediate portion 212 are concentrically connected to the two insertion portions 211. The diameter of the intermediate portion 212 is larger than each a diameter of the insertion portion 211, the passage 213 is axially disposed inside the center damping rod 21 and extends to both end surfaces of the insertion portion 212, and the two sealing grooves 214 are concentrically recessed Two end faces of the insertion portion 212, each of the sealing grooves 214 surrounds the channel 213 and is provided with a ring; as shown in FIG. 2, FIG. 3, FIG. 4 and FIG. Each of the cover bodies 22 has a circular plate shape and has a circumferential surface and opposite side surfaces. The cover body 22 includes a through hole 221, a sixth insertion groove 222 and a ring groove 223. The through hole 221 extends through the axial direction. The cover body 22, the recessed groove 222 is recessed on one side of the cover body 22, and the recessed groove 222 is equiangularly distributed around the through hole 221, and the seal ring groove 223 is recessed in the cover body A circumferential surface of the cover 22 is disposed with a ring, and the two cover bodies 22 are respectively disposed on the two insertion portions 212 of the central shock rod 21 with the two through holes 221 provided, and the two cover bodies 22 respectively abut The two ends of the intermediate portion 212 of the centering rod 21 and the two engaging grooves 222 of the cover 22 face each other; each of the auxiliary shock rods 23 has opposite ends, and the two ends of the auxiliary shock rods 23 Two of the two insertion grooves 222 are respectively embedded in the two cover bodies 22, and the auxiliary shock-damping rod 23 is equiangularly surrounds the central shock-damping rod 21; the specific gravity of the central shock-damping rod 21 and each auxiliary shock-absorbing rod 23 The specific gravity is greater than the specific gravity of the shank body 10. In the preferred embodiment of the present invention, the center damper rod 21 and the six auxiliary damper rods 23 of the shock absorbing assembly 20 are all made of heavy tungsten.

As shown in FIG. 2 and FIG. 4 , the limiting end cover 30 has a circular plate shape and has a circumferential surface. The peripheral surface of the limiting end cover 30 is provided with an external thread for a screw lock, and the limiting end cover 30 includes a The through hole 31 extends axially through the limiting end cover 30. The limiting end cover 30 is locked to the end cap coupling hole 14 of the shank body 10, and the through hole 31 and the center of the vibration damping assembly 20 are shockproof. The passage 213 of the rod 21 is in communication, and the limit end cover 30 is for restricting the shock absorbing assembly 20 received in the shock absorbing assembly bore 13 of the shank body 10.

As shown in FIG. 2 and FIG. 4, the tool fixing assembly 40 is coupled to the second end of the shank body 10. The tool fixing assembly 40 includes four positioning pins 41, a fixing member 42, four coupling bolts 43 and four bolts. The cover member 44 is inserted into the four positioning pin insertion holes 17 of the blade body 10; the fixing member 42 includes a flange portion 421, a positioning portion 422 and an insertion portion 423. The flange portion 421 has a cylindrical shape and has a first surface and a second end surface which are flat and opposite, and the flange portion 421 includes a four-integrated locking hole 4211, a four-pin hole 4212 and a two-key groove 4213. Each of the coupling locking holes 4211 extends from the first end surface of the flange portion 421 to the second end surface of the flange portion 421, and the coupling locking hole 4211 is equiangularly distributed and close to the periphery of the flange portion 421, and each of the insertion pins The hole 4212 extends from the second end surface of the flange portion 421 toward the first end surface of the flange portion 421, and the four pin holes 4212 are equiangularly distributed. Each of the pin holes 4212 is interposed between the two adjacent coupling holes 4211. Between each, the key groove 4213 is recessed radially from the circumferential surface of the flange portion 421 and extends to the first portion of the flange portion 421 The end surface of the flange portion 421 is located on the opposite sides of the flange portion 421. The positioning portion 422 is axially connected to the first end surface of the flange portion 421 and is received by the flange portion 421. The locating section 422 is cylindrical and has an end surface away from the flange portion 421. The positioning section 422 includes a pressing bolt screw hole 4221, and the pressing bolt screw hole 4221 The end surface of the positioning portion 422 extends axially toward the flange portion 421. The pressing bolt screw hole 4221 has an inner circumferential surface, and the inner circumferential surface of the pressing bolt screw hole 4221 is provided with a thread for screw locking; The insertion portion 423 has a cylindrical shape and is axially connected to the second end surface of the flange portion 421. The insertion portion 423 is surrounded by the combination locking hole 4211 and the four insertion hole 4212. The insertion portion 423 Inserted in the shank body 10 The fixing hole 42 is inserted into the shank body 10, and the four socket holes 4212 of the flange portion 421 are respectively placed on the positioning pin jacks of the shank body 10 The locating pin 41 of the shank of the shank body 16 is locked to the four coupling screw holes 16 of the shank body 10; The bolt cover 44 is respectively received in the four coupling lock holes 4211.

As shown in FIG. 2 and FIG. 4, the cutter assembly 50 includes a cutter 51, a two-key block 52, a cutter pressing member 53 and a pressing bolt 54; wherein the cutter 51 is coupled to the cutter fixing assembly 40. The member 41 includes a set of segments 511 and a cutting portion 512. The sleeve portion 511 has a cylindrical shape and has a one-sided surface and a flat end surface. The sleeve portion 511 includes a positioning hole 5111 and a two-key block card slot. 5112, the positioning hole 5111 axially penetrates the end surface of the sleeve segment 511, and each of the key block slots 5112 is recessed from the circumferential surface of the sleeve segment 511 and extends to the end surface of the sleeve segment 511. The key block slots 5112 are respectively located on opposite sides of the sleeve segment 511 in the diametrical direction and communicate with the positioning hole 5111. The cutting portion 512 is coaxially connected to the sleeve segment 511 and includes a resisting hole 5121. a bolt through hole 5122, the resisting hole 5121 is axially recessed at the center of the cutting portion 512 and has a bottom portion. The bolt through hole 5122 is axially disposed at the bottom of the resisting hole 5121. and is axially coupled. The positioning hole 5111 is sleeved on the tool fixing assembly 40 by the positioning hole 5111 of the sleeve segment 511. The positioning section 422 of the fixing member 42 and the two key block slots 5112 respectively align the two key grooves 4213; as shown in FIG. 2 and FIG. 4, the two key blocks 52 are respectively accommodated in the two key grooves 4213, and the two key blocks are respectively disposed. 52 is respectively engaged with the two key block slots 5112, and each of the key blocks 52 is locked with a bolt through the key block 52 to be locked to the bottom of the key groove 4213 of the key block 52; the tool pressing member The tool holder 53 is disposed in a short cylindrical shape and has a first end surface and a second end surface. The tool pressing member 53 includes a resisting hole 5121. a groove 531 and a bolt through hole 532 extending axially from a first end surface of the tool pressing member 53 toward a second end surface of the tool pressing member 53. The receiving groove 531 has a bottom portion. The bolt through hole 532 extends axially from the bottom of the receiving groove 531 To the second end surface of the tool pressing member 53; the pressing bolt 54 is locked by the groove 531 of the tool pressing member 53 and the bolt through hole 532, the bolt hole 5122 of the cutting portion 512 of the cutter 51 The positioning section 422 of the fixing member 42 is pressed against the bolt screw hole 421.

The shank with the shock-damping structure of the present invention has the central damper rod 21 and the auxiliary damper rod 23 of the vibration-damping component 20 being made of a material having a specific gravity greater than that of the shank body 10, and the vibration-damping component 20 can absorb the arbor The vibration generated during processing achieves the purpose of improving the processing quality and reducing noise; the two ends of each auxiliary shock rod 23 are embedded in the two cover bodies 22, and the worker can determine the auxiliary system according to the actual situation at the time of processing. The number and position of the shock rods 23; the two seal rings provided at the two ends of the center shock rod 21 and the two seal rings of the two cover bodies 22 can avoid the cutting fluid introduced from the cutting fluid through hole 11 Occurs from the junction of the various components.

10‧‧‧Cutter body

11‧‧‧Cutting fluid through hole

12‧‧‧Connected holes

13‧‧‧Shock components tolerance

14‧‧‧End cap joint hole

15‧‧‧Intervening hole

16‧‧‧ Combined with screw holes

17‧‧‧Position pin jack

20‧‧‧seismic components

21‧‧‧Center Shock Bar

22‧‧‧ Cover

23‧‧‧Auxiliary shock rod

30‧‧‧Limited end caps

31‧‧‧Perforation

40‧‧‧Tool fixing components

41‧‧‧Locating pin

42‧‧‧Fixed parts

421‧‧‧Flange

4211‧‧‧ combined with keyhole

4213‧‧‧ keyway

422‧‧‧ positioning segment

4221‧‧‧ Pressed to the bolt hole

423‧‧‧Intervene

43‧‧‧Binding bolts

44‧‧‧Bolt cover

50‧‧‧Tool components

51‧‧‧Tools

511‧‧‧Setting

5112‧‧‧Key block card slot

512‧‧‧cutting department

5121‧‧‧Received hole

5122‧‧‧Bolt piercing

52‧‧‧Key block

53‧‧‧Tool pressing parts

531‧‧‧ 容容

532‧‧‧Bolt through hole

54‧‧‧Pressure bolt

Claims (8)

A shank having a shock absorbing structure, comprising: a shank body having a first end and a second end opposite to each other, and a second end of the shank body having a flat end surface, the shank body comprising a cutting fluid through hole and a damping assembly bore, the cutting fluid through hole is axially disposed inside the cutter body and extends from a first end of the cutter body toward a second end of the cutter body The damping component is axially disposed inside the shank body, and the damping component bore is in communication with the cutting fluid through hole; a shock absorbing component is received in the damping component bore and includes a a central shock rod, a second cover body and two or more auxiliary shock rods, wherein the central shock rod has a specific gravity greater than a specific gravity of the cutter body, the central shock rod has opposite ends and includes a passage, the passage An axial direction is disposed inside the central shock rod and extends to both ends of the central shock rod, the passage is in communication with the cutting fluid through hole, and the two covers are respectively coupled to the two of the central shock rod End, the two or more auxiliary shock rods are located in the two cover bodies And surrounding the centering rod, the specific gravity of each auxiliary shock rod is greater than the specific gravity of the cutter body, each auxiliary shock rod has opposite ends, and the two ends of each auxiliary shock rod are respectively coupled to the two covers; A tool fixing assembly includes a fixing member coupled to the second end of the shank body; and a cutter assembly including a cutter coupled to the fixing member. The shank of the shock-absorbing structure of claim 1, comprising a limiting end cover, the limiting end cover comprising a through hole, the through hole axially extending through the limiting end cover; the shank body comprises The end cover is coupled to the hole, and the end cover is axially engaged with the shock absorbing assembly hole. The limiting end cover is locked to the end cover coupling hole, and the through hole communicates with the passage of the central shock rod. The arbor of the shock-absorbing structure according to claim 2, wherein the central shock-damping rod comprises an intermediate section and two insertion portions, the intermediate section has opposite ends, and the two insertion portions are respectively coaxial The cover body is disposed at two ends of the middle portion; each cover body includes a through hole extending axially through the cover body, and the two cover bodies are respectively placed on the two insertion holes of the center shock rod by the two through holes provided And the two cover bodies respectively abut against the two ends of the intermediate section. The arbor of the shock-absorbing structure according to claim 3, wherein the central shock-damping rod comprises two annular grooves, and each insertion portion of the central shock-absorbing rod has a straight end surface, and the two insertions The two end faces of the mounting portion face in opposite directions, and the two sealing grooves are respectively concentrically recessed on both end faces of the interposing portions, and each of the sealing ring grooves surrounds the passage of the center damping rod and is provided with a ring. The arbor of the shock-absorbing structure according to claim 4, wherein each of the covers has a circumferential surface and includes a ring groove recessed on a circumferential surface of the cover body, and the sealing ring of each cover body is disposed. There is a ring. The shank of the shock-absorbing structure according to claim 5, wherein each cover has two opposite sides and includes two or more insertion grooves, and the two or more insertion grooves are recessed in the cover One of the side faces and surrounds the through hole, and the two embedded grooves of the cover body face each other; each auxiliary shock rod has opposite ends, and two ends of each auxiliary shock rod are respectively embedded in the cover body Two of them are embedded in the slot. The arbor of the shock-absorbing structure according to claim 6, wherein the number of the two or more auxiliary shock-absorbing rods is set to six, and the number of the two or more embedded grooves of the cover is set to Six or six auxiliary shock rods are respectively embedded in the twelve embedding grooves of the two covers. The arbor of the shock-absorbing structure according to claim 7, wherein the central damper rod and the auxiliary damper rod are made of heavy tungsten.