JP3199045U - Chuck mounting knob - Google Patents

Abstract

Provided is a chuck mounting knob that not only reduces the weight so that a user can easily use it, but also reduces the occupied space by making the module removable so that it can be easily stored. It is used to extend the inside of a chuck and turn a connecting nut of the chuck, and the connecting nut has a plurality of fitting grooves. Have The coupler 20 has a plurality of convex keys 22, and these convex keys 22 are provided so as to correspond to the fitting grooves of the connection nuts. One end of the hand-held device 10 is in a separable state and is in solid contact with the coupling device 20, and the other side has one force receiving portion for allowing the user to grasp it. By using such a chuck mounting knob 100, the hand-held tool 10 and the coupling tool 20 are quickly separated after use to reduce the occupied space and facilitate storage. [Selection] Figure 2

Description

  The present invention relates to a lathe chuck assembly tool, in particular a kind of knob for assembling a lathe chuck.

  As shown in FIG. 1, the conventional lathe chuck includes one chuck 1 and one main shaft 2, and the chuck 1 and the main shaft 2 are coupled to each other using a general knob 3 during assembly. The knob 3 is provided with one board body 3a and one hand holding tool 3b fixed on the board body 3a, and the board body 3a also has a plurality of convex keys 3c. There is one connection nut 1a inside the chuck 1, and a plurality of fitting grooves 1b corresponding to the convex keys 3c of the knob 3 are provided on one side of the connection nut 1a. The main shaft 2 includes a single connection pull-out pipe 2a, and a thread section 2b for coupling with the connection nut 1a is provided on one side of the connection pull-out pipe 2a.

  By extending the board 3a of the knob 3 into the inside of the chuck 1, the convex key 3c of the board 3a fits into the fitting tank 1b of the connection nut 1a, and the user turns the hand-held tool 3b to connect with the board 3a. Assembling work between the chuck 1 and the main shaft 2 can be performed by turning the nut 1a and twisting it into the connection drawing tube 2a through the connection nut 1a.

  However, in the case of the general knob 3, since the board body 3a is integrated so as to be in close contact with the hand holding device 3b, when not in use, the volume is so large that it is difficult to store because it takes up space. In addition to being a hindrance to movement, the packaging material is too large and the transportation cost increases. In addition, in the case of a lathe chuck used for fixing large parts, the size of the connection nut and connection pull-out tube also increases, so it is necessary to use a larger knob to rotate the connection nut smoothly. If it is too much, the convenience for the user is lowered, so that it can be said that there is still room for improvement in the structure of the conventional integrated knob.

JP-T 09-503448

  In view of the problems of the conventional example as described above, the present invention provides a kind of chuck mounting knob that not only reduces the weight so that the user can easily use it, but also allows the module to be removed. To reduce the occupied space and make it easier to store.

  In order to achieve the above object, the chuck mounting knob provided by the present invention is for extending the inside of the chuck and turning the connecting nut of the chuck, and the connecting nut has a plurality of fitting grooves, for mounting the chuck. The knob has one coupler and one hand. The coupling tool has a plurality of convex keys, and these convex keys are provided so as to correspond to the fitting grooves of the connection nut. One end of the hand-held device is detachably fixed to the coupling tool, and the other side has one force receiving portion for allowing the user to grasp it.

  The effect of the present invention is that by using such a chuck mounting knob, the hand-holding tool and the coupling tool are quickly separated after use to reduce the occupied space and facilitate storage.

It is explanatory drawing which shows a time when the general knob for knobs and a connection nut are couple | bonded. It is an exploded view of the knob for chuck attachment of 1st Example of this invention. It is a three-dimensional view of the knob for chuck attachment of the first embodiment of the present invention. FIG. 4 is a cross-sectional view in the 4-4 direction of FIG. 3. It is an exploded view of the knob for chuck attachment of 2nd Example of this invention. It is an exploded view of the knob for chuck attachment of 3rd Example of this invention.

  In order that the invention may be more clearly understood, a number of embodiments and drawings will be described in detail. FIGS. 2 to 4 show a chuck mounting knob 100 according to an embodiment of the present invention, which includes a hand holding tool 10 and a coupling tool 20 fixedly connected to the hand holding tool 10 in a separable state. The coupling tool 20 of the chuck mounting knob 100 is used to extend the inside of the chuck and rotate the connecting nut of the chuck to couple with the connecting pull-out pipe, and the connecting nut and the connecting pull-out pipe are general configurations of a lathe chuck. Therefore, the description is omitted here.

  The hand-held device 10 includes one straight bar 12 and one horizontal bar 14, and the straight bar 12 has a hexagonal bar shape, and has six straight side surfaces 12 a on the outer side, and the vertex of the straight bar 12. There is one perforation 121 installed in the radial direction in the vicinity, one converging section 122 having a slightly smaller outer diameter and one screw hole 123 installed in the axial direction near the bottom of the straight bar 12. is there. The horizontal bar 14 is pierced through the perforation 121 in a separable state, whereby the portions located on both sides of the straight bar 12 of the horizontal bar 14 become force receiving portions 141 for allowing the user to grip.

  In the embodiment of the present invention, the coupler 20 includes a circular disc body 21 and two convex keys 22, and the disc body 21 has one upper end surface 21 a and one lower end surface 21 b that are installed facing each other. On the other hand, the two convex keys 22 protrude from the lower end surface 21b of the board 21, and the two convex keys 22 are installed so as to correspond to the two fitting grooves (not shown) on the connection nut. ing. The coupler 20 further includes a single two-step hole 23 at the center of the board 21. As shown in FIG. 4, the two-step hole 23 is formed as a recess formed from the upper end surface 21a to the lower end surface 21b. It includes a first counterbore 23a, one second counterbore 23b, and one third counterbore 23c. Of these, the first counterbore 23a is oval and has two straight hole walls 23d. The diameter of the third counterbore 23c is smaller than that of the second counterbore 23b, and the third counterbore 23c forms one block surface 23e together with the connection portion of the second counterbore 23b.

  In the hand-held device 10, one end of the straight rod 12 having the convergence section 122 is inserted into the second counterbore 23b of the two-step hole 23, and the one end of the straight rod 12 abuts against the block surface 23e. Next, the board body 21 can be stably connected to the handheld device 10 by screwing the one bolt 30 through the third counterbore 23c and then screwing it into the screw hole 123 of the straight rod 12. Further, by using the two hole walls 23d of the first counterbore 23a to contact the two side surfaces 12a of the straight bar 12, if the user turns the hand-held device 10, the rotation of the disc body 21 is surely moved. It is possible to prevent the tool 10 from spinning in the two-step hole 23.

  When the chuck mounting knob 100 of this embodiment is not in use, the bolt 30 is loosened and removed from the screw hole 123 and the second step hole 23 of the straight rod 12 and taken out of the board body 21, whereby the hand tool 10 is removed from the board 21. In addition to being able to be separated from the body 21, the horizontal bar 14 of the hand-held device 10 is simultaneously separated from the straight bar 12, and the chuck mounting knob 100 is disassembled into four modules: the hand-held device 10, the straight bar 12, the horizontal bar 14 and the bolt 30. Thus, the occupied space and the storage space of the chuck mounting knob 100 can be reduced to prevent the work from being hindered due to excessive space, and the packaging material can be reduced to reduce the transportation cost.

  What should be noted here is that, in order to reduce the total weight of the chuck mounting knob 100, in this embodiment, one concave hole 24 is formed in the lower end surface 21b without damaging the structural strength of the board 21. By doing so, the total weight of the chuck mounting knob 100 as a whole could be reduced and the burden of lifting it could be reduced.

  The chuck mounting knob 100 of the present invention is not limited to the embodiment shown in FIGS. 2 to 4, and other embodiments having the same effect may be used. FIG. 5 shows a chuck mounting knob 200 according to a second embodiment of the present invention, which has the same coupler 20 as in the first embodiment, except that the chuck mounting knob 200 of the present embodiment is different. Although the hand-held device 40 has one straight bar 42 and one horizontal bar 44, the straight bar 42 and the horizontal bar 44 are integrally connected to form a T shape. Similarly, when the chuck mounting knob 200 is not used, if the coupling tool 20 and the hand-held tool 40 are removed in the same manner as described above, the space occupied by the chuck mounting knob 200 can be easily changed and stored. A reduction in transportation costs can be realized.

  In addition to the first and second embodiments, FIG. 6 shows a chuck mounting knob 300 according to a third embodiment of the present invention, which is similarly composed of one coupling tool 50 and one hand holding tool 60. Yes. The only difference is that the hand-held device 60 has only one horizontal bar, the coupling device 50 has a cylindrical shape, a radial through hole 52 installed at one end, and two convex keys installed at the other end. 54. The horizontal bar penetrates the through hole 52 in a separable state. The chuck mounting knob 300 of the present embodiment is suitable for a lathe chuck for sandwiching a small part, and can achieve the same effects as the first and second embodiments.

  The above-mentioned examples are only recommended embodiments, and do not delimit the technical scope of the patent device. What added various change or improvement to the said embodiment is also contained in the technical scope of this invention.

100, 200, 300 ... Chuck mounting knobs 10, 40, 60 ... Hand-holding tools 12, 42 ... Straight bar 12a ... Side surface 121 ... Perforation 122 ... Converging section 123 ... Screw holes 14, 44 ... Horizontal bar 141 ... Power receiving portion 20 50 ... coupler 21 ... board 21a ... upper end face 21b ... lower end face 22, 54 ... convex key 23 ... second step hole 23a ... first counterbore 23b ... second counterbore 23c ... third counterbore 23d ... hole wall 23e: Block surface 24: Recessed hole
52 ... Through hole 30 ... Bolt

Claims (7)

A chuck mounting knob comprising the following parts, which is used to extend the inside of the chuck and turn the connecting nut of the chuck, the connecting nut having a plurality of fitting grooves;
A plurality of convex keys installed corresponding to the fitting grooves of the connection nut;
A chuck mounting knob having one hand which is a force receiving portion for allowing a user to grip the other side while the one side is in a separable state and is in solid contact with the coupling tool.   The coupler includes a circular disc body, the two convex keys are connected to the disc body; the disc body has one two-stage hole; one side of the hand-held device is the two-stage hole And has one screw hole installed along the axial direction; by screwing a bolt into the screw hole through the second step hole, the board body and the handheld The chuck mounting knob according to claim 1, wherein the tools can be stably connected.   The hand-holding tool includes a straight bar and a horizontal bar, the screw hole is provided on one side of the straight bar, and the other end has a perforation installed along a radial direction; 3. The chuck mounting knob according to claim 2, wherein the perforations are penetrated in a separable state, and portions of the horizontal bar located on both sides of the straight bar serve as the force receiving portion.   The hand holding device includes a straight bar and a horizontal bar, the straight bar and the horizontal bar are integrally connected to form a T shape, and the screw hole is provided on one side of the straight bar. The chuck mounting knob according to claim 2, wherein the knob is attached to the chuck.   The two-stage hole of the board includes one first counterbore, one second counterbore and one third counterbore formed in order, and the diameter of the third counterbore is the second counterbore. The block hole is smaller than the hole diameter, and a block surface is formed at a connection portion between the third counterbore and the second counterbore, and the first counterbore has two straight hole walls, The straight bar has two straight side surfaces and one converging section having a slightly smaller outer diameter, the converging section contacts the block surface through the second counterbore, and the two straight side surfaces are It is arranged with a straight hole wall of the first counterbore. The chuck mounting knob according to claim 3 or 4, wherein the bolt is screwed into the screw hole through the third counterbore.   The chuck mounting knob according to claim 2, wherein the board body has one concave hole, and the concave hole is formed to be recessed at a lower end surface of the board body.   The coupler has a cylindrical shape, and one side thereof has one through hole installed along the radial direction. The hand-held device has a single rod body, the rod body is detachable and penetrates the through hole, and the portions of the rod body located on both sides of the coupling tool serve as the force receiving portion. The knob for chuck attachment according to claim 1, wherein the knob is attached to the chuck.