CN100519016C - Boring cutter supporting-clamp and boring-cutter mounting-adjusting method - Google Patents
Boring cutter supporting-clamp and boring-cutter mounting-adjusting method Download PDFInfo
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- CN100519016C CN100519016C CNB2007100283354A CN200710028335A CN100519016C CN 100519016 C CN100519016 C CN 100519016C CN B2007100283354 A CNB2007100283354 A CN B2007100283354A CN 200710028335 A CN200710028335 A CN 200710028335A CN 100519016 C CN100519016 C CN 100519016C
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- boring cutter
- locating piece
- medial surface
- splicing sleeve
- boring
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Abstract
The invention discloses the supporting fixture, installation and adjustment of the boring cutter. The supporting fixture is that: set at least three locating blocks on the internal side of supporting bush and at least three radial via holes on the supporting bush. The bolt passes through via hole and screw fits the locating blocks. Adjusting gaskets are set on the internal side of supporting bush or between each pairs of locating blocks. The installation and adjustment at least contain the following steps: a. grind the internal sides ( facing the axel of the supporting bush) of at least three locating blocks. b. the bolt through via thread fits the locating blocks. c. put the boring cutter into the supporting bush. d. add adjusting gaskets between the internal internal side of supporting bush and the locating blocks to adjust their fitting clearance. The fixture has low manufacturing cost, high adjusting precision and long service life.
Description
Technical field
The invention belongs to field of machining, be specifically related to a kind of boring cutter supporting fixture and boring cutter installation adjusting method.
Background technology
Boring cutter is a kind of process tool commonly used, its effect is to be used for bore hole, for guaranteeing the cylindricity and the concentricity of institute's bore hole, need high-precision boring cutter supporting fixture that boring cutter is supported, to avoid the circular runout of boring cutter, the gap design between boring cutter bearing journal and the supporting base requires to be 12-18 μ m.As in the process of engine cam axis hole, need the two ends of boring cutter to be supported by two supporting bases, need to realize precision-fit between the bearing journal of boring cutter and the supporting base, to reduce the circular runout of boring cutter, the production cost of supporting base is too high, be about 20,000 yuan as existing supporting fixture, in the processing use, move back and forth and irregular cutting force because boring cutter bears, make the wearing and tearing aggravation between supporting base and the boring cutter bearing journal, production practices show, when gap during greater than 30 μ m, cylinder cap camshaft hole finished surface just produces chatter mark, influence crudy, after the supporting base wearing and tearing acquire a certain degree, can only scrap, its service life is short.
Summary of the invention
The object of the present invention is to provide a kind of low cost of manufacture, the boring cutter supporting fixture of long service life and boring cutter installation adjusting method.
Boring cutter supporting fixture of the present invention is:
Be provided with at least three locating pieces at the splicing sleeve medial surface, splicing sleeve is provided with at least three through holes radially, and bolt is connected with the locating piece threaded engagement after passing through hole; Between splicing sleeve medial surface and each locating piece, be provided with the adjustment pad.
When the boring cutter support fixture was made, the endoporus of splicing sleeve can be slightly larger than the bearing journal of boring cutter, and the diameter of bore that requires splicing sleeve that needn't be strict reduces manufacturing cost; During use, can adjust the radial position of each locating piece according to the mated condition of each locating piece and boring cutter, to satisfy the precision-fit requirement between supporting fixture and the boring cutter, after repeatedly using, locating piece can produce wearing and tearing, can add the adjustment pad and adjust between locating piece and splicing sleeve medial surface, and the present invention in terms of existing technologies, the manufacturing cost of anchor clamps is significantly reduced, longer service life.
The further structure of anchor clamps of the present invention is:
Be provided with at least three grooves at described splicing sleeve medial surface, each described locating piece places in this groove.Groove can be to locating piece, adjust pad play supporting and positioning action, in order to avoid locating piece, the adjustment pad is moved and influence its location, adjust effect.
Described locating piece is strip, and its section is a rectangle, and this strip locating piece is provided with along described splicing sleeve axial direction.During use, for line contacts, for of the prior art contact, its location is more reliable, the precision height between locating piece and the boring cutter bearing journal.
Adjustment pad between described locating piece and the described splicing sleeve medial surface is at least two.Can adjust the radial position of each locating piece by between splicing sleeve medial surface and each locating piece, adding the adjustment pad of varying number or adding the adjustment pad of different-thickness.
Described locating piece, bolt are three.The structure of three locating pieces, bolt is simple relatively, easy to adjust.
Boring cutter installation adjusting method of the present invention is that this method may further comprise the steps at least:
A, with the medial surface of at least three locating pieces, promptly polish towards the side in splicing sleeve axle center;
B, bolt are connected with the locating piece threaded engagement after passing through hole;
C, boring cutter is put into splicing sleeve;
E, according to the mated condition between boring cutter and the locating piece, adjust pad the fit clearance between boring cutter and the locating piece adjusted adding between splicing sleeve medial surface and the locating piece.
The further improvement of boring cutter installation adjusting method of the present invention is:
In the above-mentioned a step, the medial surface of described at least three locating pieces is polished and make described at least three locating pieces be positioned at sustained height.Promptly before each locating piece is packed into, have identical height, adjust difficulty to reduce.
Also be provided with a steps d after the above-mentioned c step, before the e step: scribble coat (as red lead) at described locating piece medial surface, after boring cutter is put into, if the wearing and tearing of the coat on certain a positioning block medial surface are excessive, then the degree of depth of the groove at this locating piece place is suitably deepened.Because be provided with groove at the splicing sleeve medial surface, each locating piece keeps equal height before packing into, can conveniently adjust the degree of depth of each groove; When boring cutter was packed into, the red lead worn area was the interference fit zone, can adopt manual scraping mode that the degree of depth of groove is deepened.
The described pad of respectively adjusting has two kinds of different thickness at least, in described e step, selects the adjustment pad of different-thickness according to the mated condition of boring cutter and locating piece.During manufacturing, each adjusts the different specification of the optional usefulness of pad, as 0.05 millimeter, 0.1 millimeter, 0.2 millimeter, 0.4 millimeter, 0.5 millimeter, 0.7 millimeter, 1 millimeter, when each locating piece is adjusted, select the adjustment pad of different size for use according to the gap between boring cutter and the locating piece.
In sum, advantage of the present invention is:
When 1, anchor clamps are manufactured, undemandingly require cooperating of precision between splicing sleeve and the boring cutter bearing journal, the processing and manufacturing cost is low;
2, warp is long-term uses after the wearing and tearing, can reuse after locating piece is adjusted, and be largely increased the service life of anchor clamps;
3, the mode with the line contact replaces the face way of contact, and can adjust the gap between boring cutter bearing journal and the anchor clamps, and quality of fit is higher, and the error of product processed is littler.
Description of drawings
Fig. 1 is anchor clamps, the workpiece schematic diagram that work is added man-hour;
Fig. 2 is in the prior art, the structure chart of supporting base;
Fig. 3 is the structure chart of anchor clamps of the present invention;
Fig. 4 is the side sectional view of Fig. 3;
Fig. 5 is the A place enlarged drawing of Fig. 3;
Fig. 6 is the flow chart of method of adjustment of the present invention;
Description of reference numerals:
1, splicing sleeve, 2, locating piece, 3, through hole, 4, bolt, 5, adjust pad, 6, groove, 7, boring cutter, 8, workpiece.
The specific embodiment
As Fig. 3 to Fig. 5, a kind of boring cutter supporting fixture, be provided with three grooves 6 at splicing sleeve 1 medial surface, three locating pieces 2 are strip, its section is a rectangle, strip locating piece 2 is along splicing sleeve 1 axial direction setting and place respectively in each groove 6, and splicing sleeve 1 is provided with three through holes 3 radially, and bolt 4 passes through hole 3 backs and is connected with locating piece 2 threaded engagement; Between splicing sleeve 1 medial surface and each locating piece 2, be provided with and adjust pad 5 (thickness of adjusting pad 5 has following specification: 0.05 millimeter, 0.1 millimeter, 0.2 millimeter, 0.4 millimeter, 0.5 millimeter, 0.7 millimeter, 1 millimeter).
As Fig. 6, the boring cutter installation adjusting method, this method may further comprise the steps:
A, with the medial surface of three locating pieces 2, promptly polish and make three locating pieces 2 be positioned at sustained height towards the side in splicing sleeve 1 axle center;
B, bolt 4 pass through hole 3 backs and are connected with locating piece 2 threaded engagement;
C, boring cutter 7 is put into splicing sleeve 1;
D: scribble coat (being red lead) at locating piece 2 medial surfaces, after boring cutter 7 is put into,, then the degree of depth of the groove 6 at these locating piece 2 places is suitably deepened by manual scraping mode if the coat wearing and tearing on certain a positioning block 2 medial surface are excessive;
E, according to the mated condition between boring cutter 7 and the locating piece 2, adjust adding the fit clearance of adjusting between 5 pairs of boring cutters 7 of pad and the locating piece 2 between splicing sleeve 1 medial surface and the locating piece 2; When select adjusting pad 5, can in being 0.05 millimeter, 0.1 millimeter, 0.2 millimeter, 0.4 millimeter, 0.5 millimeter, 0.7 millimeter, 1 millimeter adjustment pad 5, one-tenth-value thickness 1/10 select.
As shown in Figure 1, the present invention can be used for workpiece 8 is processed, as the camshaft hole of processing cylinder cap; Described supporting fixture is owing to adopted three locating pieces 2 and adjusted the gap that pad 5 is adjusted between boring cutter 7 and the anchor clamps, when the anchor clamps processing and manufacturing, do not require that splicing sleeve 1 has strict precision, the processing and manufacturing cost is lower, the production cost of anchor clamps of the present invention is about 2000 yuans, in terms of existing technologies, manufacturing cost reduces greatly, during use, by three locating pieces 2, adjusting pad 5 adjusts, gap between boring cutter 7 and the anchor clamps is more met design requirement, the precision of adjusting is higher, and after repeatedly using, the locating piece 2 of anchor clamps of the present invention can wear and tear, can take off three locating pieces 2 this moment, on grinding machine, carry out grinding and make three locating pieces 2 highly identical, afterwards, in the anchor clamps of again three locating pieces 2 being packed into, and add according to the mated condition between boring cutter 7 and the locating piece 2 and to adjust pad 5, to adjust the gap between boring cutter 7 and the locating piece 2; This shows that the manufacturing cost of anchor clamps of the present invention significantly reduces, adjusts precision height, long service life.
Claims (10)
1, a kind of boring cutter supporting fixture is characterized in that, is provided with at least three locating pieces (2) at splicing sleeve (1) medial surface, and splicing sleeve (1) is provided with at least three through holes (3) radially, and bolt (4) passes through hole (3) back and is connected with locating piece (2) threaded engagement; Between splicing sleeve (1) medial surface and each locating piece (2), be provided with and adjust pad (5).
2, boring cutter supporting fixture according to claim 1 is characterized in that be provided with at least three grooves (6) at described splicing sleeve (1) medial surface, each described locating piece (2) places in this groove (6).
3, boring cutter supporting fixture according to claim 1 is characterized in that described locating piece (2) is strip, and its section is a rectangle, and this strip locating piece (2) is along described splicing sleeve (1) axial direction setting.
4, boring cutter supporting fixture according to claim 1 is characterized in that the adjustment pad (5) between described locating piece (2) and described splicing sleeve (1) medial surface is at least two.
5, boring cutter supporting fixture according to claim 1 is characterized in that the thickness difference of described adjustment pad (5).
6, boring cutter supporting fixture according to claim 1 is characterized in that described locating piece (2), bolt (4) are three.
7, a kind of boring cutter installation adjusting method is characterized in that, this method may further comprise the steps at least:
A, with the medial surface of at least three locating pieces (2), promptly polish towards the side in splicing sleeve (1) axle center;
B, bolt (4) pass through hole (3) back and are connected with locating piece (2) threaded engagement;
C, boring cutter (7) is put into splicing sleeve (1);
E, according to the mated condition between boring cutter (7) and the locating piece (2), adjust pad (5) fit clearance between boring cutter (7) and the locating piece (2) adjusted adding between splicing sleeve (1) medial surface and the locating piece (2).
8, as boring cutter installation adjusting method as described in the claim 7, it is characterized in that, in the above-mentioned a step, the medial surface of described at least three locating pieces (2) is polished and make described at least three locating pieces (2) be positioned at sustained height.
9, as boring cutter installation adjusting method as described in the claim 8, it is characterized in that, also be provided with a steps d after the above-mentioned c step, before the e step: scribble coat at described locating piece (2) medial surface, after boring cutter (7) is put into, if the wearing and tearing of the coat on certain a positioning block (2) medial surface are excessive, then the degree of depth of the groove (6) that this locating piece (2) is located is suitably deepened.
10, as boring cutter installation adjusting method as described in the claim 7, it is characterized in that, the described pad (5) of respectively adjusting has two kinds of different thickness at least, in described e step, selects the adjustment pad (5) of different-thickness according to the boring cutter (7) and the mated condition of locating piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100283354A CN100519016C (en) | 2007-05-30 | 2007-05-30 | Boring cutter supporting-clamp and boring-cutter mounting-adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100283354A CN100519016C (en) | 2007-05-30 | 2007-05-30 | Boring cutter supporting-clamp and boring-cutter mounting-adjusting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101069931A CN101069931A (en) | 2007-11-14 |
| CN100519016C true CN100519016C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100283354A Active CN100519016C (en) | 2007-05-30 | 2007-05-30 | Boring cutter supporting-clamp and boring-cutter mounting-adjusting method |
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| CN (1) | CN100519016C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008045675A1 (en) * | 2008-09-04 | 2010-03-11 | Komet Group Gmbh | Concentric shaft tool |
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- 2007-05-30 CN CNB2007100283354A patent/CN100519016C/en active Active
Also Published As
| Publication number | Publication date |
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| CN101069931A (en) | 2007-11-14 |
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