JPH0929569A - Bearer for drilling through-hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the time for positioning a bearer, by using the upper surface of a protrusion on a bearer body and the upper surface of a support part of a support piece so as to define a bearing part for a workpiece in order to change the distance to the bearing part. SOLUTION: A protrusion is formed in a part of the upper surface of a bearer body while a recess is formed in another part of the upper surface thereof which is a predetermined distance from the protrusion, and a polygonal support bed a1 is formed in its upper part with a support part a2 having a size different from that of the support bed and a shape similar to that of the same w, being positioned so that distances l1 to ln between vertical surfaces r1 to rn of the support part a2 and the upper surface end parts of the support bed which faces the above-mentioned vertical surfaces are different from each other so as to form a support piece 1. The support piece A is turned and set so that a 1G surface, a 1E surface and a 1H surface are fitted to respectively face rise-up surfaces of shoulder parts of the bearer body 2, thereby it is possible to form four kinds of groove width 1H.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestal capable of efficiently performing a setup operation in a through hole processing operation.

[0002]

2. Description of the Related Art Conventionally, when processing a through hole, unless the pedestal is arranged so as not to interfere with the hole, problems such as damage to the pedestal, bending of the hole, and breakage of the drill occur. It was Therefore, conventionally, depending on the shape of the workpiece, the shape of the hole to be processed, the number, etc., the pedestal has been variously positioned as shown below to prevent problems. FIG. 14 is a plan view and a sectional view of a pedestal which is a conventional technique. That is, FIGS. 14A and 14B show the holes 9 of the workpiece 3.
9A and 9B show a plan view and a cross-sectional view of a pedestal configured so that the pedestal 8 is placed between the pitches of the holes 9 and the holes 9. FIG.
FIG. 3A is a plan view and a cross-sectional view of a pedestal which is another conventional technique. That is, as shown in FIGS. 15 (a) and 15 (b), the pedestal is configured so that two pedestals 8 are placed outside the hole 9 of the workpiece 3 so as to sandwich the hole 9.

FIG. 16 is a plan view and a cross-sectional view showing an example of placing a cradle, which is still another conventional technique. That is, as shown in FIGS. 16 (a) and 16 (b), the pedestal 8 having the groove 10 that is several millimeters larger than the hole 9 to be processed is placed in accordance with the center of the hole 9 and the center of the groove 10. It is the top view and sectional drawing which show an example of a prior art. In this case, if the heights of the receiving positions on both sides of the hole 9 are different, it is possible to receive only one side with the hole 9 sandwiched, which results in unstable machining, shortening the cutting tool life, and machining surface roughness. Therefore, in such a case, the pedestal 8 as shown in FIG. 17 is used. That is, FIG. 17 is a plan view and a sectional view of a pedestal which is another conventional technique. As shown in FIG. 17, in reality, the structure of the receiving table 8 is such that the workpiece 3 is placed on the receiving table 8 having different receiving positions on both sides.

[0004]

In the cases shown in FIGS. 14 and 15 described above, it is necessary to position the pedestal so as not to interfere with the holes, and there is a problem that the work takes a considerable amount of time. In the case of FIG. 16, the problem of FIGS. 14 and 15 is solved, but when the size of the hole is changed, it is necessary to replace the pedestal. Therefore, as in FIGS. 14 and 15, It will take a considerable amount of time. Further, in the case of FIG. 17, when the heights of the receiving positions on both sides are changed, it is necessary to replace the pedestal in the case of different workpieces. Therefore, similar to the above, this also takes a considerable amount of time. There was a problem that it needed.

[0005]

SUMMARY OF THE INVENTION The present invention has the above-mentioned problems of shortening the positioning time of the pedestal and reducing the frequency of replacement of the pedestal, thereby making it possible to reduce the setup time in drilling. To provide a pedestal for drilling holes. The gist of the invention is (1)
A convex portion is formed on one side of the upper surface of the cradle main body, a concave portion is formed on the other side with a constant distance, and a supporting portion a ₂ of the same shape having a different size is formed on the upper portion of the polygonal column supporting base a ₁ . Further, the support pieces A are formed by arranging them so that the distances l _{1 to} l _n from the respective vertical surfaces (r _{1 to} r _n ) of the supporting portion a _{2 to} the respective opposite upper surface end portions of the supporting base a ₁ are different from each other. The supporting frame A
Is detachably disposed in the concave portion of the pedestal body, and the upper surface of the convex portion of the pedestal body and the upper surface of the supporting portion a ₂ of the supporting piece A form a receiving portion of the workpiece, A pedestal for through-hole processing, characterized in that the distance can be changed.

(2) One of the upper surfaces of the cradle body and a fixed
While forming recesses on the other upper surface at a distance,
Polygonal support a₁Supports of the same shape with different sizes
Holding part a _TwoAnd the supporting part a_TwoEach elevation (r₁~
r_n) To support base a₁Distance to each opposite top edge of
l₁~ L_nSupport pieces A so that they are positioned so that they are different from each other.
Respectively, and the supporting piece A is formed in the recess of the pedestal body.
The supporting portion a of the one supporting piece A is detachably arranged._Two
Support part a of the upper surface and the other support piece A_TwoWith top surface, to be processed
The receiving part of the object is formed and the distance of the receiving part can be changed.
A pedestal for through-hole processing characterized by and.

(3) A protrusion is formed on one of the upper surfaces of the cradle main body.
A concave portion is formed on the other side with a certain distance, and four supporting portions having different lengths are arranged orthogonally to form a supporting piece B, and the supporting piece is attached to and detached from the concave portion of the cradle main body. A through hole which is freely arranged, wherein the upper surface of the convex portion of the pedestal body and the end surface of the support piece B form a receiving portion for the workpiece, and the height of the receiving portion can be changed. Processing cradle.

[0008] (4) the cradle forms one the convex portion of the upper surface of the main body, form the support portion a ₂ of different same shape sized at the top of the support a ₁ of polygonal prism, and the supporting portion a ₂ each elevation (r ₁ ~r _n) the distance l ₁ to l _n the support frame a with allowed positioned mutually different as to relative each top end of the support base a ₁ each formed from the support frame of the A is detachably disposed in the recess of the pedestal body, the recess is formed on the other upper surface of the pedestal body with a certain distance, and four different lengths h ₁ to h _n are provided. The support portions are arranged orthogonally to form a support piece B, and the support piece B is detachably provided in the recess of the pedestal body, and the support piece a ₂ of the support piece A and the support piece For through-hole machining, characterized by forming a receiving part of the workpiece with the end of B and making the distance and height of the receiving part variable In the only table.

[0009]

In the case of the present invention, by rotating the support piece A, it is possible to form a groove several millimeters larger than the hole to be machined by the number of sides of the polygon. It is not necessary to place two pedestals so that they are placed or sandwiched between the holes, and the pedestal body replacement frequency can be reduced even if the size of the holes changes. Also, by rotating the support piece B, the height of the position where it is received with the hole sandwiched can be changed, so when the height of the position where the hole is sandwiched is changed, the frequency of replacement of the cradle body is reduced. it can. Further, the cross-sectional shape (lower end portion) of the work piece is obtained by performing as shown in FIGS. 9, 12, and 13 described later.
When is not horizontal, the distance of the receiving portion can be changed.

[0010]

Embodiments of the present invention will be specifically described below with reference to the drawings. First Embodiment FIG. 1 is a plan view and a sectional view showing a first embodiment of a through hole processing pedestal according to the present invention, and FIG. 2 is a support piece A which is one component of the through hole processing pedestal of FIG. FIG. 3 is a plan view and a sectional view of In addition, FIG. 3 shows one of the pedestals for processing the through holes of FIG.
It is a top view and a sectional view of a cradle main body which is a part. FIG. 1A and FIG. 1B are respectively FIG.
2 (b) on the recess pocket 2A of the cradle main body 2, that is, on the regular polygonal column 1J which is the portion fitted into the recess.
Supporting piece A in the shape of a regular polygonal prism shown in (a) and (b)
FIG. 1 shows a plan view and a cross-sectional view of a work piece 3 placed on a through hole pedestal when 1 is fitted in the recess pocket 2A of the pedestal body 2 and processed by the drill 4.

Therefore, in FIGS. 1 (a) and 1 (b), the position of the hole to be machined is a groove formed by the pedestal for the through hole, which is several millimeters larger than the diameter of the hole to be machined to prevent interference. 2 (a) and 2 (b) are plan views of a support piece A1 having a shape in which a portion 1J fitted into the cradle main body 2 is a quadrangular prism and quadrangular prism 1K convex portions having different l distances are attached to the quadrangular prism. A figure and its sectional view are shown. FIG.
(A) and (b) respectively show the top view and sectional drawing of the cradle main body 2, 2A is a recess pocket into which the support piece A1 is fitted, and 2B is a convex pocket. FIG.
[Fig. 3] is a cross-sectional view when a supporting piece A is set. As shown in this figure, in FIG. 4A, the 1G plane in FIG.
4B shows a case where the support piece A1 is set so that the surface 1E and the surface 1H are fitted so as to face the rising surface 1C of the step of the pedestal body 2, respectively. By rotating and setting the support piece A1 as described above, four kinds of groove widths 1H can be obtained including the case of FIG. 1B.

Second Embodiment FIG. 5 is a plan view and a sectional view showing a second embodiment of the through hole receiving base of the present invention. As shown in FIGS. 5 (a) and 5 (b), a portion 1J fitted into the cradle main body 5 respectively.
Is a quadratic prism, and the quadratic prism 1 with different l distances above it
When the two support pieces A1 having the shape of K are set by being fitted into the pedestal body 5, the work piece 3 is placed on the through hole pedestal and is machined by the drill 4 and a plan view. The sectional view is shown. In this figure, the position of the hole to be machined is a groove formed by the pedestal for through holes, which is several millimeters larger than the diameter of the hole to be machined to prevent interference. FIG. 6 is a plan view and a sectional view of a cradle main body which is one component of the through-hole cradle shown in FIG. This figure 6
6A and 6B are a plan view and a sectional view of the cradle main body 5, respectively, and 5A is a recess pocket into which the support piece A1 is fitted.

FIG. 7 is a sectional view when the support piece A is set. 7A shows the 1G surface in FIG.
7B is a diagram when the support piece A1 is set so that the 1E surface faces each other with the hole center in between, and FIG. 7C shows the case where the support piece A1 is simultaneously rotated by 90 °. The groove widths 1H of four types including the case of FIG. 5B can be obtained by setting the groove widths 1H. Although not shown in the figure, one surface of the supporting piece A1 is a fixed surface, only the other supporting piece A1 is rotated by 90 °, and the next surface of the one supporting piece A1 is a fixed surface. Only the other supporting piece A1 is rotated by 90 °, so that a total of 16 kinds of groove widths 1H can be obtained. In the above embodiments, the shape of the supporting base a ₁ and the supporting portion a ₂ of the polygonal prism is a quadrangular prism, but the present invention is not limited to this, and for example, a polygonal prism such as a triangular prism or a hexagonal prism may be used. Good.

Embodiment 3 FIG. 8 is a perspective view of a support piece B which is one component of the through hole receiving base according to the present invention. As shown in FIG. 8, when the workpiece 3 is placed on the through hole pedestal when the partial support pieces B7 that are respectively fitted in the pedestal body 2 are set by being fitted in the pedestal body 2. 4 is a cross-sectional view of the work piece 3 in which the cross-sectional shape (lower end portion) of the work piece 3 is not horizontal, by changing the support portion of the support piece B7 fitted into the recess of the pedestal body 2, four types of height adjustments can be made. Is possible.

Fourth Embodiment FIG. 9 is a plan view and a sectional view showing a fourth embodiment of the through hole cradle of the present invention. 9A and 9B.
Is a support piece A1 having a shape in which a portion 1J fitted into the cradle body 6 is a quadrangular prism, and a quadrangular pillar 1K having a different distance of 1 attached to the upper portion thereof is fitted into the pocket of the cradle body 6 and supported. A cross-shaped support piece having different lengths of the piece B7 is set in the groove of the pedestal body by setting the workpiece 3 on the pedestal for the through hole, placing the drill 3 and processing with the drill 4. FIG. 3 is a plan view and a cross-sectional view thereof. In the figure, the position of the hole to be machined is a groove formed by the pedestal for through holes which is several millimeters larger than the diameter of the hole to be machined to prevent interference.

FIG. 10 is a perspective view of the support pieces B having different cross shapes. That is, it shows the support piece B7 in the case of forming a cross shape in which the lengths of 7A to 7D are different from each other. FIG. 11 is a plan view of the cradle main body and a sectional view thereof.
That is, FIGS. 11A and 11B are a plan view and an EE sectional view of the cradle main body 6, respectively, 6A is a pocket into which the support piece A1 is fitted, and 6B is a support piece B7. It is a groove that fits.

FIG. 12 is a sectional view when the supporting pieces A and B are set. That is, FIG. 12A shows the 1G plane in FIG. 2, and FIG. 12B shows the 1E plane.
(C) is a diagram when the 1H surface is set on the side of the supporting piece B7, and the supporting piece B7 sets the surface 7B on the surface that contacts the workpiece 3. From this figure, it is possible to obtain four kinds of groove widths including the case of FIG. 9B by rotating and setting the support piece A1.

FIG. 13 is a sectional view of another case in which the support pieces A and B are set. That is, in FIG.
10A is set to the 7D surface in FIG. 10, the 7C surface is set to FIG. 13B, and the 7A surface is set to the surface in FIG. It is a figure when it is set to the support piece B7 side. From this figure, by rotating and setting the support piece B7, as shown in FIG.
The height of the receiving position can be changed to four types including the case of. Furthermore, although not shown, by disposing the support pieces B7 shown in FIG. 9 on both sides, it is possible to adjust both the groove width and the height position.

[0019]

As described above, by rotating the support piece A, it is possible to form a groove several millimeters larger than the hole to be processed by the number of sides of the polygon. It is no longer necessary to place two pedestals or place the pedestal outside the hole, and even if the size of the hole changes, the pedestal body replacement frequency can be reduced, shortening the setup time for drilling. it can. Further, by rotating the support piece B, four kinds of heights of the positions of receiving the holes can be changed. Therefore, when the heights of the positions of receiving the holes are changed, the frequency of replacement of the cradle main body can be reduced. The setup time for drilling can be shortened. Further, the combination of the set positions of the supporting pieces A and B has an excellent effect that the setup time can be more effectively shortened.

[Brief description of drawings]

FIG. 1 is a plan view and a cross-sectional view showing a first embodiment of a through hole processing cradle according to the present invention;

2 is a plan view and a sectional view of a support piece A, which is one component of the pedestal for through-hole processing of FIG.

FIG. 3 is a plan view and a cross-sectional view of a cradle main body which is one component of the through-hole machining cradle of FIG.

FIG. 4 is a cross-sectional view when the support piece A is set,

FIG. 5 is a plan view and a cross-sectional view showing a second embodiment of a through hole cradle of the present invention,

6 is a plan view and a sectional view of a cradle main body which is a part of the cradle for through holes in FIG.

FIG. 7 is a cross-sectional view when the supporting piece A is set,

FIG. 8 is a perspective view of a support piece B which is one component of the through hole pedestal according to the present invention.

FIG. 9 is a plan view and a cross-sectional view showing a fourth embodiment of a through hole cradle of the present invention;

FIG. 10 is a perspective view of different cross-shaped support pieces B,

FIG. 11 is a plan view and a cross-sectional view of the cradle main body,

FIG. 12 is a cross-sectional view when the support pieces A and B are set,

FIG. 13 is a cross-sectional view of another case in which support pieces A and B are set,

FIG. 14 is a plan view and a cross-sectional view of a pedestal which is a conventional technique;

FIG. 15 is a plan view and a cross-sectional view of another conventional pedestal;

FIG. 16 is a plan view and a cross-sectional view showing an example of placing two pedestals, which is still another conventional technique,

FIG. 17 is a plan view and a cross-sectional view of a pedestal which is another conventional technique.

[Explanation of symbols]

1 supporting frame A 2, 5, 6 cradle body 2A concave pocket 2B protrusions pocket 3 workpiece 4 drill 7 supporting frame B 8 cradle 9 hole 10 groove a ₁ supporting base a ₂ supporting portion

Claims (4)

[Claims] The method according to claim 1] cradle while the convex portion of the upper surface of the body, to form a recess on the other that at a distance, the support portion a of the supporting table a ₁ different same shape sizes to the top of polygonal ₂
Forming a, and the distance l ₁ from the elevation (r ₁ ~r _n) to opposite respective top ends of the supporting table a ₁ of the support portion a ₂ to l
_The support pieces A are formed by arranging so that _n is different from each other, and the support pieces A are detachably arranged in the concave portions of the pedestal body, and the upper surfaces of the convex portions of the pedestal body and the support pieces A are supported. A pedestal for processing through-holes, characterized in that a receiving portion for the workpiece is formed by the upper surface of the portion a ₂ and the distance of the receiving portion is variable. 2. A fixed distance from one of the upper surfaces of the cradle main body
On the other upper surface on which the
Pillar support a₁Supports of the same shape with different sizes on top of
a_TwoAnd the supporting part a_TwoEach elevation (r₁~
r_n) To support base a₁Distance to each opposite top edge of
l₁~ L_nSupport pieces A so that they are positioned so that they are different from each other.
Respectively, and the supporting piece A is formed in the recess of the pedestal body.
The supporting portion a of the one supporting piece A is detachably arranged._Two
Support part a of the upper surface and the other support piece A _TwoWith top surface, to be processed
The receiving part of the object is formed and the distance of the receiving part can be changed.
A pedestal for through-hole processing characterized by and. 3. A support piece is provided in which a convex portion is formed on one of the upper surfaces of the cradle main body and a concave portion is formed on the other of the upper surface of the pedestal main body, and four supporting portions having different lengths are arranged orthogonally. B, the supporting piece is detachably disposed in the concave portion of the pedestal body, and the upper surface of the convex portion of the pedestal body and the end surface of the supporting piece B form a receiving portion of the workpiece, A pedestal for through-hole processing, characterized in that the height of the receiving portion is variable. 4. A convex portion is formed on one of the upper surfaces of the cradle body.
And the support a of a polygonal prism ₁Same shape with different size on top of
Support part a_TwoAnd the supporting part a_TwoEach elevation (r
₁~ R_n) To support base a₁Up to each opposite top edge
Distance l₁~ L_nPosition them so that they are different from each other.
And the support frame A is formed in the concave portion of the pedestal body.
And the upper surface of the pedestal body
Form a recess at a certain distance from the other
H₁~ H_FourBy arranging four support parts of different
A support piece B is formed, and the support piece B is attached to the pedestal body.
A support portion a of the support piece A is detachably disposed in the recess._Two
The upper surface of the work piece and the end of the support piece B form the receiving part of the work piece.
The feature is that the distance and height of the receiving part can be changed.
A pedestal for processing through holes.