TWM517655U - Precision clamping sleeve - Google Patents

Description

Precision clamping sleeve (1)

The utility model relates to the technical field of a knife sleeve, in particular to a precision clamping sleeve, which is provided with a plurality of concave arc grooves in the axial direction of the inner circumferential wall of a clamping sleeve, and the concave arc grooves are mutually mutually Parallel and one end extends to one end surface of the clamping sleeve to reduce the deformation amount of the clamping sleeve, reduce the yaw of the cutter during operation to improve the clamping strength, and achieve precision machining.

Please refer to the seventh to eighth figures. As shown in the following, the conventional knife has a wide variety of sleeves, wherein the axial hollow portion of a knife 90 is placed in a collet 91, and a clamping hole 92 is formed in the axial direction of the collet 91. And the axial inner peripheral wall of the collet 91 is provided with a plurality of slots 93, and the slots 93 are parallel to each other and extend through the opening of the clamping portion at one end of the collet 91, and the other end of the collet 91 is mounted Provided in the blade holder 90, a blade member 94 is inserted into the opening portion of the collet 91 to provide a workpiece for processing; however, the collet 91 in the blade 90 still has many defects. Wherein, the opening deformation amount of each of the slits 93 of the clamping portion of the collet 91 is large, so that the inner diameter gap between the cutter member 94 and the collet 91 is between 0.015 mm and 0.3 mm, and When the clamping member 94 is clamped, the error is easily deflected, and the end of the clamping portion of the collet 91 has a large clamping force; but the clamping force is uneven at both ends, and the other end is operated when the knife is actuated. The piece 94 is prone to yaw, which causes processing errors and reduces the accuracy of the workpiece.

Therefore, in view of the problems existing in the above-mentioned conventional sleeve structure, how to develop an innovative structure with more ideal and practicality is really eagerly awaited by consumers, and it is also a goal and direction for relevant industry players to make efforts to develop breakthroughs.

The technical problem to be solved is that it is known that the opening of each of the slots of the clamping portion of the collet has a large amount of deformation, so that the gap between the inner diameter of the blade and the collet is 0.015 mm to 0.3 mm. Between, and when the tool is clamped, the error is easy to be skewed. In addition, one end of the opening of the clamping portion generates a large clamping force; but because the clamping force at both ends is uneven, the other end is easy to operate when the blade is operated. The yaw is generated, which causes processing errors and reduces the accuracy of the workpiece.

Technical problem for solving the problem: The present invention provides a precision clamping sleeve, comprising: a clamping sleeve, the clamping sleeve is straight cylindrical and has a through hole in the axial direction; the clamping sleeve is further in the perforation A ring flange is vertically protruded from the outer peripheral wall of one end, wherein the inner peripheral wall of the clamping sleeve is axially equidistantly provided with a plurality of concave arc grooves, each of the concave arc grooves being parallel to each other and one end extending to the clamping sleeve One end of the ring flange and extending to one end surface of the clamping sleeve to form a concave curved surface, and the other end of each concave arc groove is further provided with a groove in the inner peripheral wall of the clamping sleeve; According to the above structure, when the clamping sleeve is subjected to pressure to press the concave arc grooves of the inner diameter, the deformation amount of the clamping sleeve can be reduced to improve the clamping strength and achieve the purpose of precision machining.

Wherein, a circumferential groove is formed at the intersection of the outer peripheral wall surface of the clamping sleeve and the ring flange.

Wherein the groove is annularly arranged with respect to the inner peripheral wall of the other side of each of the concave arc grooves The edge has a height lower than an inner peripheral wall of each of the concave arc grooves.

Wherein, the bottom of each of the concave arc grooves, the bottom of the groove, and the inner peripheral wall of the flange opposite to the other side of the groove have the same depth in the radial direction.

Wherein the clamping sleeve inserts the ring flange into the sleeve head opposite to the other end until the ring flange abuts against the sleeve head, and the hole is inserted into a tool at the center of the end surface, the cutter and the clip The gap between the sleeves is 0 mm to 0.015 mm.

Compared with the effects of the prior art: the present invention clamps the tool tightly with each of the concave arc grooves in the clamping sleeve, reduces the deformation amount of the clamping sleeve, and reduces the yaw when the tool is actuated to increase the clamping strength. , to achieve the purpose of precision processing.

With regard to the techniques, means and functions of the present invention, a preferred embodiment will be described in detail with reference to the drawings and drawings, and the reviewer will be able to have a more detailed understanding of the novel and familiarize himself with the The skilled artisan can implement the following, and the following description is only for explaining the preferred embodiment and is not intended to limit the scope of the present invention. Therefore, any configuration of the present invention based on the configuration of the present invention may be Modifications are within the scope of this new type of protection.

[This new type]

20‧‧‧Clamping sleeve

21‧‧‧Perforation

22‧‧‧ end face

23‧‧‧ ring flange

24‧‧‧ concave arc slot

25‧‧‧ trench

26‧‧‧Flange

27‧‧‧ ring groove

28‧‧‧ concave curved surface

30‧‧‧Knife head

40‧‧‧Tools

[study]

90‧‧‧knife

91‧‧‧ Collet

92‧‧‧Clamping hole

93‧‧‧ slotting

94‧‧‧Tools

Fig. 1 is a perspective view of the appearance of the present invention.

Fig. 2 is a plan view showing the end face of the clamping sleeve of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Figure 4: A plan view of the axial section of the present invention.

Figure 5 is an exploded perspective view of an embodiment of the present invention.

Figure 6: Schematic diagram of the enlarged cross section of the novel.

Figure 7: A stereoscopic view of the appearance of a conventional.

Figure 8: Schematic diagram of the enlarged section when it is known to be active.

The first embodiment of the present invention provides a precision clamping sleeve, comprising: a clamping sleeve 20, the clamping sleeve 20 is a straight cylindrical shape and a through hole 21 is axially disposed; The clamping sleeve 20 further defines a ring flange 23 perpendicularly formed on the outer peripheral wall of one end of the through hole 21, wherein the inner peripheral wall of the clamping sleeve 20 is axially equidistantly provided with a plurality of concave arc grooves 24, each of which The concave arc grooves 24 are parallel to each other and one end extends to one end of the ring flange 23 of the clamping sleeve 20, and an end surface 22 of the clamping sleeve 20 is formed to form a concave curved surface 28, and the end surface 22 The other end of each of the concave arc grooves 24 is further provided with a groove 25 in the inner peripheral wall of the clamping sleeve 20; When the clamping sleeve 20 is pressed against the concave arc groove 24 of the inner diameter, the deformation amount of the clamping sleeve 20 can be reduced to improve the clamping strength and achieve the purpose of precision machining.

A ring groove 27 is defined in the outer peripheral wall surface of the clamping sleeve 20 at the intersection of the ring flange 23.

The groove 25 is annularly provided with a flange 26 with respect to the other inner peripheral wall of each of the concave arc grooves 24. The height of the flange 26 is lower than the inner peripheral wall of each of the concave arc grooves 24.

The bottom of each of the concave arc grooves 24, the bottom of the groove 25, and the inner peripheral wall of the flange 26 opposite to the other side of the groove 25 have the same depth in the radial direction.

Wherein, the clamping sleeve 20 places the ring flange 23 in the same position with respect to the other end. The inside of the end of the end face 22 is inserted into the tool holder 40, and the gap between the tool 40 and the clamping sleeve 20 is 0 mm to 0.015 mm.

When loading the tool 40, the tool holder 40 is first released, and the tool 40 is The end surface 22 of the clamping sleeve 20 is placed in the middle of the through hole 21, and the sleeve head 30 is rotated to press the clamping sleeve 20, and the concave arc groove 24 is slightly deformed to fix the cutter 40. To process the workpiece; it is particularly noteworthy that the novel structure is suitable for use in the thinner axial inner wall of the clamping sleeve 20, and the clamping sleeve 20 is reduced by each of the concave arc slots 24. The amount of deformation is used to reduce the error of the yaw when the tool 40 is actuated, and at the same time, the clamping strength is improved, and the machining accuracy is effectively improved.

In summary of the above, the present invention has the above-mentioned numerous effects and practical values. And can effectively improve the overall economic benefits, so this new model is indeed an excellent structure, and the same or similar products are not used publicly in the same field technology, should meet the requirements of the new patent, and apply according to law. Please also give this new patent.

20‧‧‧Clamping sleeve

22‧‧‧ end face

23‧‧‧ ring flange

24‧‧‧ concave arc slot

25‧‧‧ trench

26‧‧‧Flange

27‧‧‧ ring groove

28‧‧‧ concave curved surface

Claims (5)

A precision clamping sleeve includes: a clamping sleeve having a straight cylindrical shape and a through hole in the axial direction; the clamping sleeve further extending a circumferential convex wall at an outer peripheral end of the one end of the through hole The edge is characterized in that: the inner peripheral wall of the clamping sleeve is axially equidistantly provided with a plurality of concave arc grooves, each of the concave arc grooves being parallel to each other and one end extending to one end of the ring flange of the clamping sleeve, and extending The end surface of the clamping sleeve is formed with a concave curved surface, and the other end of each concave arc groove is further provided with a groove in the inner peripheral wall of the clamping sleeve; with the above structure, the clamping sleeve When the concave arc groove of the inner diameter is pressed by the pressure, the deformation amount of the clamping sleeve can be reduced to improve the clamping strength and achieve the purpose of precision machining. The precision clamping sleeve of claim 1, wherein a circumferential groove is formed at a surface of the outer peripheral wall of the clamping sleeve and the annular flange. The precision clamping sleeve according to claim 1, wherein the groove is annularly provided with a flange with respect to the inner peripheral wall of the other side of each of the concave arc grooves, the height of the flange being lower than each of the concave arc grooves. Zhou wall. The precision clamping sleeve according to claim 3, wherein the bottom of each of the concave arc grooves, the bottom of the groove, and the inner peripheral wall of the flange opposite to the other side of the groove have the same depth in the radial direction. The precision clamping sleeve of claim 1, wherein the clamping sleeve is inserted into the sleeve from the other end of the ring flange until the ring flange abuts the sleeve head and is centered at the end face The perforation is placed in a tool having a gap of 0 mm to 0.015 mm from the clamping sleeve.