TWM491546U - Tool holder clamping structure - Google Patents

Description

Knife grip structure

The present invention is to provide a knife holder clamping structure in the technical field of the knife handle structure, in particular, a clamping hole is arranged axially inside the cylinder clamp, and the cylinder clamp is disposed on the outer ring portion of the axial direction: a locking screw hole groove, a three coolant hole groove and a six deformation hole groove; wherein each of the deformation hole grooves is disposed at a bottom of a collet, and a first annular groove is disposed on an inner surface of the bottom portion of the collet, The inner surface of the collet is provided with three three-shaped grooves extending at equal intervals to the bottom, and each of the deformation grooves respectively corresponds to the deformation hole groove; wherein each deformation groove length extends to the first annular groove; and each coolant The length of the slot is longer than each of the deformed slots and is perforated to the bottom of the collet and a second annular recess is formed on the inner surface of the collet; each of the locking tapped holes is equally spaced, wherein each of the cooling slots and each The locking screw holes are alternately arranged between the deformation holes to increase the deformation amount and maintain the clamping force to ensure the stability of the mechanism.

According to the conventional knife, there are various types of clamping structures. For example, a conventional clamping structure is provided, in which a collet is internally provided with a clamping hole in the axial direction, and the collet is respectively disposed in the outer ring portion of the axial direction. a deformation hole groove, a three-locking hole groove and a three coolant hole groove, and a plurality of deformation grooves are arranged on the inner surface of the tube clamp, and each of the deformation grooves is arranged equidistantly in the front portion of the collet or alternately arranged in an up-and-down manner; The inner side of the knife is axially tapered toward one end, and the other free end is provided with the collet, and The collet is provided with a cutter head, and finally the locking screw holes of the free end of the cutter head are locked into a plurality of fixing screws.

However, the conventional tool still has many defects in the clamping structure, and in many cases, if the deformation hole groove design is too much, the clamping force is insufficient, or the deformation hole groove design is too small to cause insufficient deformation, and the design clip The holding force can not meet the requirements of use, and the deformation cannot be rebound after repeated use; and the joint between the knife and the head is often accompanied by a large amount of dust, moisture and vibration, so that the head of the knife is not smooth or even stuck. Problems such as death, and it is also easy to cause problems such as fatigue damage of the internal structure of the knife head or slippage of the tool.

Therefore, in view of the problems existing in the above-mentioned conventional knife clamping structure, how to develop an innovative structure with more ideal and practicality is eagerly awaited by consumers, and it is also the goal and direction of the relevant industry to strive to develop breakthroughs.

In view of the above problems, the present invention provides a tool holder clamping structure, comprising: a clamping hole is axially disposed inside a collet, and the collet is disposed on the outer ring portion of the axial direction: three locking screw holes, three coolants a hole groove and a six deformation hole groove; wherein each of the deformation hole grooves is perforated to the bottom of the collet, and a first annular groove is provided on the inner surface of the bottom of the collet, and the inner surface of the collet is provided with three equal intervals a deformation tank to the bottom, and each of the deformation grooves corresponds to the deformation slot; wherein each of the deformation grooves extends to the first annular groove; and each coolant hole has a length longer than each of the deformation holes Perforating to the bottom of the collet and connecting the inner surface with a second annular groove; each of the locking screw holes is equally spaced, wherein each of the cooling holes and Each of the locking screw holes is alternately disposed between the deformation holes to increase the deformation amount and maintain the clamping force to ensure the stability of the mechanism.

The cutter has a hole in the inner axial direction which is tapered toward one end, and the other free end is provided with the collet, and a sheath is set on the collet; a cutter head is inserted into a ball bearing and then a C-ring is placed Inserting the head into the holder; and inserting the head into the collet, and installing a stop ring on the free end of the head, the stop ring is provided with six perforations, three of which are screwed holes and The three coolant holes are mutually staggered, and an O-ring seal is arranged on the outer edge of the stop ring; finally, the locking screw holes of the stop ring are locked into the three fixing screws; when the handle is closed, the head is The gap between the handles is reduced by dust, moisture and vibration, which prolongs the life and smoothness of the internal components. In addition, the design of the collet enhances the clamping force to ensure the stability of the machine.

With regard to the technology used in the present invention, it is to be understood that the above-described objects, structures and features of the present invention can be obtained from a detailed and detailed understanding.

10‧‧‧Knife

11‧‧‧ sheath

20‧‧‧ Collet

21‧‧‧ deformation trough

22‧‧‧First annular groove

23‧‧‧Solution hole

24‧‧‧Lock threaded slot

25‧‧‧second annular groove

26‧‧‧Transformation slot

27‧‧‧Clamping hole

30‧‧‧C-ring

31‧‧‧Steel needle bearing

40‧‧‧Knife head

50‧‧‧stop ring

51‧‧‧ fixing screws

52‧‧‧O-ring

53‧‧‧Lock threaded hole

54‧‧‧ coolant hole

Fig. 1 is a perspective view showing the appearance of the present embodiment.

Fig. 2 is an exploded perspective view of the present embodiment.

Fig. 3 is a schematic exploded perspective view of the present embodiment.

Fig. 4 is a schematic cross-sectional view showing the sleeve of the present embodiment.

Figure 5 is a partial cross-sectional view of the A-A of the present embodiment.

Figure 6 is a partial cross-sectional view of the B-B of the present embodiment.

Figure 7 is a partial cross-sectional view of the C-C of the present embodiment.

Fig. 8 is a schematic view showing the operation of the cutter head of the present embodiment.

Fig. 9 is a schematic view showing the action of the screw head of the present embodiment.

Referring to the first to ninth drawings, the present invention provides a tool holder clamping structure, comprising: a clamping hole 27 disposed axially inside a collet 20, the collet 20 being disposed at an outer ring portion of the axial direction: The locking screw hole groove 24, the three coolant hole groove 23 and the six deformation hole groove 26; each of the deformation hole grooves 26 opens to the bottom of the collet 20, and the inner surface of the collet 20 is provided with three equal intervals extending to the bottom The third deformation groove 21, and each of the deformation grooves 21 is equally spaced corresponding to the deformation hole groove 26; a first annular groove 22 is disposed on the inner surface of the bottom of the collet 20, wherein each of the deformation hole grooves 26 extends in length To the first annular groove 22; each of the cooling liquid holes 23 is longer than each of the deformation hole grooves 26 and perforated to the bottom of the collet 20 and connected to the inner surface of the collet 20 to provide a second annular groove 25 And the second annular groove 25 is disposed lower than the first annular groove 22; each of the locking screw holes 24 is disposed at equal intervals, wherein each of the cooling liquid holes 23 and each of the locks The threaded hole grooves 24 are alternately disposed between the deformation hole grooves 26 to increase the deformation amount and maintain the clamping force; a hole is formed in the inner portion of the tool holder 10 And the outer portion of the knife handle 10 is tapered toward the other end. The other free end of the knife handle 10 is provided with the collet 20, and a sheath 11 is sleeved on the collet 20, and the sheath 11 is made of high polymer. a cutter head 40, a steel needle bearing 31 is sleeved in the cutter head 40, and then a C-ring 30 is buckled into the cutter head 40; and the cutter head 40 is sleeved outside the collet 20, and A retaining ring 50 is disposed on the free end of the head 40, and the retaining ring 50 is provided with six through holes, wherein the three locking screw holes 53 and the three cooling liquid holes 54 are interlaced with each other, and the outer edge of the retaining ring 50 Equipped with an O-ring 52 seal; Finally, the three fixing screws 51 are locked by the locking screw holes 53 of the retaining ring 50; when the above is closed, the blade head 40 and the blade 10 are lowered by the sheath 11 into dust, moisture and vibration. To extend the life of the internal components and the smoothness of the loosening and tightening of the cutter head; in addition, the design of the collet 20 enhances the gripping force to ensure the stability of the cutter.

As shown in Fig. 8~9, when used, the cutter head 40 is loosened into a predetermined cutter, and the cutter head 40 is tightened. At this time, the steel needle bearing 31 is rotated to press the collet 20, and the collet is clamped. Each of the deformation holes 26 is deformed from the outside to the inside, and each of the deformation grooves 21 in the inside of the collet 20 is deformed inwardly and the deformation amount is increased by the first annular groove 22; and each of the deformation grooves 21 Aligning each of the deformation hole grooves 26 at equal intervals increases the deformation amount, but each of the deformation hole grooves 26 is designed to maintain the maximum clamping force, thereby improving the working efficiency; finally, the sheath 11 can be prevented from being lowered when implemented. The blade head 40 enters problems such as dust, moisture, and vibration, and prolongs the life of the internal components and the smoothness of use of the blade head 40 when it is tightened and loosened.

The foregoing description of the preferred embodiment of the present invention is specifically described for the technical features of the present invention; however, those skilled in the art can make changes and modifications to the present invention without departing from the spirit and principles of the present invention. Such changes and modifications shall be covered in the scope defined by the scope of the patent application below.

10‧‧‧Knife

11‧‧‧ sheath

20‧‧‧ Collet

21‧‧‧ deformation trough

22‧‧‧First annular groove

23‧‧‧Solution hole

24‧‧‧Lock threaded slot

25‧‧‧second annular groove

31‧‧‧Steel needle bearing

40‧‧‧Knife head

50‧‧‧stop ring

51‧‧‧ fixing screws

52‧‧‧O-ring

Claims (4)

A tool holder clamping structure comprising: a knife handle, a collet, a predetermined number of locking screw holes, a predetermined number of coolant holes, a predetermined number of deformation holes, a cutter head and a stop ring; the cylinder is clamped in the axial direction The outer ring portion is provided with: each of the locking screw holes, each of the coolant holes and each of the deformation holes, wherein the inner surface of the collet is provided with a predetermined number of modified grooves extending to the bottom at equal intervals, and each of the deformations The grooves are equally spaced corresponding to the deformation holes; a first annular groove is disposed on the inner surface of the bottom of the collet, each of the coolant holes is longer than each of the deformation holes and perforated to the bottom of the collet, and a second annular groove is disposed on a bottom surface of the collet; wherein each of the coolant holes and each of the locking screw holes are evenly staggered between the deformation holes; the outer portion of the blade is tapered toward a free end And a through hole is arranged in the inner axial direction, the cutter is provided with the other free end, the cylindrical clamp is sleeved inside the cutter head, and then a C-shaped ring is buckled into the cutter head; and the cutter head cover is Providing the collet, and installing the stop ring at the free end of the head . The tool holder clamping structure according to claim 1, wherein the collet is sleeved with a sheath, and the sheath material is a high molecular polymer, which reduces the head of the knife into dust, moisture or vibration. The tool holder clamping structure of claim 1, wherein the stop ring is provided with a predetermined number of perforations, wherein the perforations are a predetermined number of locking thread holes and a predetermined number of cooling liquid holes are interdigitated and outside the stop ring The edge is equipped with an O-ring seal. The tool holder clamping structure of claim 3, wherein each of the locking threaded holes of the stop ring is locked into the three fixing screws.