CN206047684U - A kind of irregular ladder axial workpiece bores the special fixture of big shaft end face - Google Patents
A kind of irregular ladder axial workpiece bores the special fixture of big shaft end face Download PDFInfo
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- CN206047684U CN206047684U CN201621085206.XU CN201621085206U CN206047684U CN 206047684 U CN206047684 U CN 206047684U CN 201621085206 U CN201621085206 U CN 201621085206U CN 206047684 U CN206047684 U CN 206047684U
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Abstract
A kind of irregular ladder axial workpiece bores the special fixture of big shaft end face, and it is related to a kind of special fixture of irregular ladder axial workpiece.Due to the structure clamping inconvenience of irregular ladder axial workpiece, drill bit easy vibration effect crudy in drilling, the easy offset bore heart position of drilling tool, can not guarantee that the mode of the positional precision of irregular ladder axial workpiece, existing line drilling and Digit Control Machine Tool drilling cannot ensure the positional precision in hole.Lower clamp body is coaxially disposed with upper fixture body and which is plugged in the first hole near one end of upper fixture body, workpiece is located in upper fixture body, first shaft part is engaged with the first hole and which is adjacent to lower clamp body phase, second shaft part is engaged with the second hole, 3rd shaft part is engaged with the 3rd hole, lower clamp body is machined with even number through hole, and even number through hole is evenly arranged along the radial direction of lower clamp body, and each drill bushing is arranged in its corresponding through hole.This utility model is used for the positioning and clamping of irregular ladder axial workpiece.
Description
Technical field
This utility model is related to a kind of special fixture of irregular ladder axial workpiece, belongs to field of machining.
Background technology
Irregular ladder axial workpiece is the part with multidiameter class formation, and intermediate portion position is a big axle, and two ends are
Irregular little axle, and the end face of big axle also needs to carry out Drilling operation operation.Due to the inconvenience of Workpiece structure clamping, drill bit is being bored
Easy vibration effect crudy during hole, the easy offset bore heart position of drilling tool, it is ensured that the not positional precision in hole, line are bored
Hole cannot ensure the positional precision in hole.Ladder axial workpiece bores big shaft end face, due to structure and the position in hole of workpiece, neither
Can be drilled with scribble method, can not be drilled with Digit Control Machine Tool.Have a strong impact on working (machining) efficiency.The problems referred to above are urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide the special fixture that a kind of irregular ladder axial workpiece bores big shaft end face, with
The structure clamping inconvenience due to irregular ladder axial workpiece is solved, drill bit easy vibration effect crudy in drilling is bored
The easy offset bore heart position of spot facing cutter, it is ensured that the not positional precision of irregular ladder axial workpiece, existing line drill sum
The mode of control lathe drilling cannot ensure the problem of the positional precision in hole.
This utility model is adopted the technical scheme that to solve above-mentioned technical problem：
A kind of irregular ladder axial workpiece bores the special fixture of big shaft end face, and it includes upper fixture body, lower clamp body
With even number drill bushing, the upper fixture body is machined with the first hole, the second hole and the 3rd hole successively along its axial direction, and described first
Hole, the second hole and the 3rd hole are coaxially disposed and aperture is successively decreased successively, and the lower clamp body is coaxially disposed with upper fixture body and which leans on
One end of nearly upper fixture body is plugged in the first hole of upper fixture body, workpiece setting in upper fixture body, the first shaft part of workpiece
It is engaged with the first hole and which is adjacent to lower clamp body phase, the second shaft part of workpiece is engaged with the second hole, the 3rd axle of workpiece
Tri- holes of Duan Yu are engaged, and the lower clamp body is machined with even number through hole along its axial direction, and even number through hole is along lower clamp
The radial direction of body is evenly arranged, and drill bushing is corresponded with through hole and arranged, and each drill bushing is arranged in its corresponding through hole.
This utility model has the advantages that：
1st, this utility model can be realized to irregular multidiameter by being equipped between upper fixture body and lower clamp body
First shaft part of class workpiece, the second shaft part and the 3rd shaft part carry out positioning and clamping, not only overcome this kind of workpiece because structure is not advised
The technical barrier for then causing clamping difficult, while also meeting the requirement of parts batch production.
2nd, this utility model ensure that the site error of drilling should be less than ± 0.05 millimeter, so as to reach batch machining work
The concordance of part, lower clamp body is engaged with even number drill bushing along the even number through hole that its axial direction is processed being capable of fast accurate
Ground is processed to workpiece.
3rd, this utility model has the advantages that simple structure, clamping are fast, the process-cycle is short and production efficiency is high, is suitable to promote
To in the middle of mechanical processing technique technology.
Description of the drawings
Fig. 1 is the main structure diagram of workpiece 4；
Fig. 2 is the left view structural representation of workpiece 4；
Fig. 3 is front view structure profile of the present utility model；
Fig. 4 is right side structural representation of the present utility model；
Fig. 5 is the front view structure profile of upper fixture body 1；
Fig. 6 is the left view structural representation of upper fixture body 1；
Fig. 7 is the front view structure semi-cutaway of drill bushing 2；
Fig. 8 is the enlarged drawing at A in Fig. 7；
Main structure diagrams of the Fig. 9 for lower clamp body 3；
Right side structural representations of the Figure 10 for lower clamp body 3.
Specific embodiment
Specific embodiment one：With reference to Fig. 1 to Figure 10 illustrate present embodiment, present embodiment include upper fixture body 1, under
Clamp body 3 and even number drill bushing 2, the upper fixture body 1 along its axial direction be machined with successively the first hole 1-1, the second hole 1-2 and
3rd hole 1-3, the first hole 1-1, the second hole 1-2 and the 3rd hole 1-3 is coaxially disposed and aperture is successively decreased successively, the lower clamp
Body 3 is coaxially disposed with upper fixture body 1 and which is plugged in the first hole 1-1 of upper fixture body 1 near one end of upper fixture body 1, work
Part 4 is arranged in upper fixture body 1, and the first shaft part 4-1 of workpiece 4 is engaged with the first hole 1-1 and which is affixed with lower clamp body 3
Tightly, the second shaft part 4-2 of workpiece 4 is engaged with the second hole 1-2, and the 3rd shaft part 4-3 of workpiece 4 is engaged with the 3rd hole 1-3, institute
State lower clamp body 3 even number through hole 3-5, radial directions of the even number through hole 3-5 along lower clamp body 3 are machined with along its axial direction
It is evenly arranged, drill bushing 2 is corresponded with through hole 3-5 and arranged, each drill bushing 2 is arranged in its corresponding through hole 3-5.
In present embodiment, the value of through hole 3-5 is 2,4 or 6.Through hole 3-5 is corresponded with drill bushing 2 and is arranged, i.e. drill bushing
2 number value is 2,4 or 6.Relative two in even number drill bushing 2 are chosen during drilling directly.
In present embodiment, the external diameter of the first shaft part 4-1 of workpiece 4 is φ 3, and the external diameter of the second shaft part 4-2 is φ 2, the 3rd
The external diameter of shaft part 4-3 is φ 1, and the edge of the second shaft part 4-2 is also machined with two 4 holes of φ along its axial direction, for common
Bench drill drills, in drilling as drilling tool is vertical direction, it is ensured that in the big axial end of workpiece 4, i.e. the first shaft part 4-1
Need the direction in the hole of processing identical with the direction of cutter.
Specific embodiment two：Further restriction of the present embodiment for specific embodiment one, it is every in present embodiment
Interference fit between the corresponding through hole 3-5 of individual drill bushing 2.
Specific embodiment three：Further restriction of the present embodiment for specific embodiment one or two, present embodiment
Lower clamp body 3 include the first axle body 3-1, stop collar 3-2, the second axle body 3-3 and end axis body 3-4, the first axle body 3-
1st, the second axle body 3-3 and end axis body 3-4 are fixedly connected sequentially and are made as one, the first axle body 3-1's and the second axle body 3-3
Junction fixed cover is equipped with stop collar 3-2, and the first axle body 3-1 is insertion axis body, and the lower clamp body 3 passes through the first axle body
3-1 is plugged in the first hole 1-1 of upper fixture body 1, and the end axis body 3-4 is machined with even number through hole 3- along its axial direction
5, the end axis body 3-4 are also machined with centre bore 3-6 along its axial direction, and even number through hole 3-5 is distributed on centre bore 3-6's
Around.
The clamping effect of upper fixture body 1 and lower clamp body 3 smoothly Drilling operation for convenience in present embodiment, it is ensured that
Its manufacturability, uniform four through hole 3-5 on the axis body 3-4 of end, the size of through hole 3-5 are interference fit with the external diameter of drill bushing 2,
It is bumped into the central axes and the diameter parallel with lower clamp body 3 of drill bushing 2, through hole 3-5 and drill bushing 2 in through hole 3-5, two
Central axis is respectively perpendicular to the axial plane φ 2 of the drilling of workpiece 4, ensures the positional precision of the drilling of workpiece 4 with this.
Specific embodiment four：Further restriction of the present embodiment for specific embodiment three, institute in present embodiment
State interference fits between the 3rd hole 1-3 and the 3rd shaft part 4-3.
Specific embodiment five：Further restriction of the present embodiment for specific embodiment one or four, present embodiment
Described between the second hole 1-2 and the second shaft part 4-2 gap coordinate.
Specific embodiment six：Further restriction of the present embodiment for specific embodiment three, in present embodiment
The internal diameter of heart hole 3-6 is identical with the external diameter of the 3rd shaft part 4-3 of workpiece 4.
In present embodiment, centre bore 3-6 is identical with the external diameter of the 3rd shaft part 4-3, i.e. the axle φ of centre bore 3-6 and workpiece 4
1 is equivalently-sized, is provided with housing screw on centre bore 3-6, so as to realize the positioning action to workpiece 4.Lower clamp body 3 and compression
It is threaded connection between screw, workpiece 4 is pressed on by the clamp body that upper fixture body 1 and lower clamp body 3 are constituted by housing screw
In, it is ensured that depth of the length of the first axle body 3-1 more than the second hole 1-2, it is ensured that the positioning and clamping of workpiece 4.The second axle body 3-3's
Length needs to meet and there is instantly certain space between clamp body 3 and housing screw, and when workpiece 4 drills, cutter is from through hole 3-
5 pass through, and play a part of chip removal, and good manufacturability.Drill bushing 2 is coordinated with drilling tool gap, and 2 material of drill bushing is tool steel,
It is good through heat treatment hardness height, wearability, facilitate the maintenance and processing of bushing plate, changed after drill bushing 2 weares and teares.Bore
2 pairs of drilling tools of set play a part of to position and are oriented to, it is ensured that the positional precision of drilling.
Specific embodiment seven：Further restriction of the present embodiment for specific embodiment one, two, four or six, this reality
The axial length for applying workpiece 4 in mode is L, and the axial length of the 3rd shaft part 4-3 of workpiece 4 is L1, the first shaft part 4- of workpiece 4
1 axial length is L2, the L-L1Difference less than axial length value and the second hole 1-2 of the first hole 1-1 axial length value
Sum；The L-L1-L2Difference less than the second hole 1-2 axial length value.
The course of work：
Side horizontal of the upper fixture body 1 with the first hole 1-1 is positioned on drilling machine table top, is adjusted and fixed upper fixture body
1 and the position of lower clamp body 3.Workpiece 4 is put between upper fixture body 1 and lower clamp body 3 in drilling, it is ensured that accurate positioning.
The end axis body 3-4 of workpiece 4 is adjacent to towards centre bore 3-6 and with centre bore 3-6 phases, and housing screw is screwed to centre bore 3-6
Middle positioning workpiece 4.Drill bit is drilled by drill bushing 2.Lower clamp body 3 and the screw thread at housing screw are rotated after being drilled hole, work is taken out
Part 4.
Claims (7)
1. a kind of irregular ladder axial workpiece bores the special fixture of big shaft end face, it is characterised in that：It includes upper fixture body
(1), lower clamp body (3) and even number drill bushing (2), the upper fixture body (1) are machined with the first hole (1- successively along its axial direction
1), the second hole (1-2) and the 3rd hole (1-3), first hole (1-1), the second hole (1-2) and the 3rd hole (1-3) are coaxially disposed
And aperture is successively decreased successively, the lower clamp body (3) and upper fixture body (1) be coaxially disposed and its near upper fixture body (1) one end
It is plugged in first hole (1-1) of upper fixture body (1), workpiece (4) is arranged in upper fixture body (1), the first shaft part of workpiece (4)
(4-1) it is engaged with the first hole (1-1) and which is mutually adjacent to lower clamp body (3), second shaft part (4-2) and second of workpiece (4)
(1-2) is engaged in hole, and the 3rd shaft part (4-3) of workpiece (4) is engaged with the 3rd hole (1-3), and the lower clamp body (3) is along its axle
Even number through hole (3-5) is machined with to direction, even number through hole (3-5) is evenly arranged along the radial direction of lower clamp body (3), is bored
Set (2) is corresponded with through hole (3-5) and is arranged, and each drill bushing (2) is arranged in its corresponding through hole (3-5).
2. a kind of irregular ladder axial workpiece according to claim 1 bores the special fixture of big shaft end face, its feature
It is：Interference fit between the corresponding through hole (3-5) of each drill bushing (2).
3. a kind of irregular ladder axial workpiece according to claim 1 and 2 bores the special fixture of big shaft end face, and which is special
Levy and be：Lower clamp body (3) includes the first axle body (3-1), stop collar (3-2), the second axle body (3-3) and end axis body (3-4),
The first axle body (3-1), the second axle body (3-3) and end axis body (3-4) are fixedly connected sequentially and are made as one, the first axle
The junction fixed cover of body (3-1) and the second axle body (3-3) is equipped with stop collar (3-2), and the first axle body (3-1) is insertion axle
Body, the lower clamp body (3) are plugged in by the first axle body (3-1) in first hole (1-1) of upper fixture body (1), the end
Axis body (3-4) is machined with even number through hole (3-5) along its axial direction, and the end axis body (3-4) also adds along its axial direction
Work has centre bore (3-6), and even number through hole (3-5) is distributed on around centre bore (3-6).
4. a kind of irregular ladder axial workpiece according to claim 3 bores the special fixture of big shaft end face, its feature
It is：Interference fits between 3rd hole (1-3) and the 3rd shaft part (4-3).
5. a kind of irregular ladder axial workpiece according to claim 1 or 4 bores the special fixture of big shaft end face, and which is special
Levy and be：Between second hole (1-2) and the second shaft part (4-2), gap coordinates.
6. a kind of irregular ladder axial workpiece according to claim 3 bores the special fixture of big shaft end face, its feature
It is：The internal diameter of centre bore (3-6) is identical with the external diameter of the 3rd shaft part (4-3) of workpiece (4).
7. a kind of irregular ladder axial workpiece according to claim 1,2,4 or 6 bores the special fixture of big shaft end face,
It is characterized in that：The axial length of workpiece (4) is L, and the axial length of the 3rd shaft part (4-3) of workpiece (4) is L1, workpiece (4)
The first shaft part (4-1) axial length be L2, the L-L1Difference less than the first hole (1-1) axial length value and second
The axial length value sum in hole (1-2)；The L-L1-L2Difference less than the second hole (1-2) axial length value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621085206.XU CN206047684U (en) | 2016-09-28 | 2016-09-28 | A kind of irregular ladder axial workpiece bores the special fixture of big shaft end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621085206.XU CN206047684U (en) | 2016-09-28 | 2016-09-28 | A kind of irregular ladder axial workpiece bores the special fixture of big shaft end face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206047684U true CN206047684U (en) | 2017-03-29 |
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ID=58366115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621085206.XU Active CN206047684U (en) | 2016-09-28 | 2016-09-28 | A kind of irregular ladder axial workpiece bores the special fixture of big shaft end face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206047684U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312625A (en) * | 2016-09-28 | 2017-01-11 | 哈尔滨建成集团有限公司 | Special fixture for drilling large shaft end face of irregular step shaft part |
| CN108746228A (en) * | 2018-06-29 | 2018-11-06 | 中国航空工业标准件制造有限责任公司 | For it is secondary pull out material pull out glassware |
-
2016
- 2016-09-28 CN CN201621085206.XU patent/CN206047684U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312625A (en) * | 2016-09-28 | 2017-01-11 | 哈尔滨建成集团有限公司 | Special fixture for drilling large shaft end face of irregular step shaft part |
| CN108746228A (en) * | 2018-06-29 | 2018-11-06 | 中国航空工业标准件制造有限责任公司 | For it is secondary pull out material pull out glassware |
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