CN2605095Y - Combined counter sinking bit for socket chamfering - Google Patents
Combined counter sinking bit for socket chamfering Download PDFInfo
- Publication number
- CN2605095Y CN2605095Y CN 03204764 CN03204764U CN2605095Y CN 2605095 Y CN2605095 Y CN 2605095Y CN 03204764 CN03204764 CN 03204764 CN 03204764 U CN03204764 U CN 03204764U CN 2605095 Y CN2605095 Y CN 2605095Y
- Authority
- CN
- China
- Prior art keywords
- drill
- coat
- combined countersink
- centre
- nest
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Drilling Tools (AREA)
Abstract
A nest compound chamfering bit comprises a drill head and a drill rod, wherein a central drill is inserted in an empty cavity of the drill rod and the chamfering bit, and the drill head of the central drill detect the drill head of the chamfering bit. A coat body is arranged outside the drill rod, on which an inner surface of the guiding screw coat inosculating an outer surface of the coat body is arranged and a limiting rolling block coat is arranged outside the screw coat; a rolling sliding way and thrust bearing are arranged between the limiting rolling block coat and the screw coat; a steel ball and an adjusting mat are arranged in the sliding way and the left surface is filled with glycerin. A cage nut connected with the screw cut is arranged on the coat body and the limiting rolling block coat, with the cage nut and the limiting rolling block coat fixed by an adjusting nut. A sealing cover is arranged on the limiting rolling block coat and an adjusting mat is arranged between the sealing cover and the thrust bearing. The chamfering bit can find a position by shaft holes and key slots and be fixed by an adjusting bolt. The drilling rod inserted in the shaft holes can realize torque transmission through rotation to make the chamfering bit work stable which can finish the processing of a valve sealing nest one time and improve working precision and degree of finish of the sealing nest.
Description
[technical field] the utility model relates to a kind of stroke of compound combined countersink drill of nest, belongs to a kind of drilling machine machinery tools, is mainly used in the processing of valve seal nest size.
The machining accuracy of sealing of [background technology] hydraulic valve and valve body end face seal nest has direct relation.When adopting prior art processing valve seal nest, process the valve body centre bore with drill bit earlier, be inserted in the centre bore with central shaft then and draw nest again behind the location.When drawing nest, because centre bore inner surface fineness is low, central shaft is easy to generate radially runout in centre bore, and it is not steady to work when causing combined countersink drill to draw nest, makes valve seal nest diameter dimension tolerance, the degree of depth and fineness to be difficult to reach the design standard requirement.At present, still not having a kind of specific purpose tool can be used in addresses the above problem.
In the prior art, ZL94240932.9 utility model patent disclosed " two drill bit " is mainly used in cover class, the wide-aperture disposable processing of nut class part, to solve the hole drill shift phenomenon that bit change more causes.This pair drill bit comprises drill bit, drilling rod, drillstock, and centre drill interts in main force's brill inner chamber, and the centre drill external diameter and the main force bore internal diameter and coincide, and the drill bit of centre drill leans out the drill bit that the main force bores, and centre drill is removable fixedlying connected with drillstock.But above-mentioned " twin tip drill " is not suitable for processing valve seal nest.
[utility model content] the purpose of this utility model be to overcome the deficiency of above-mentioned prior art and provide a kind of be used to process the valve seal nest draw the compound combined countersink drill of nest.
The purpose of this utility model realizes by following technological means.
A kind of stroke of compound combined countersink drill of nest, comprise centre drill, combined countersink drill and drilling rod thereof, it is characterized in that said centre drill is inserted in drilling rod and the combined countersink drill inner chamber, combined countersink drill internal diameter and centre drill external diameter coincide and are contained on the centre drill, the drill bit of centre drill leans out the drill bit of combined countersink drill, adopts dismantled and assembled fixed connection structure between centre drill and combined countersink drill and the drilling rod, and body is equipped with in the drilling rod outside, guide thread cover inner surface coincide with the cover external surface and is contained on the body, and spacing sliding roll sleeve is contained in the thread bush outside.Said guide thread cover inner surface is contained on the body with tapered the coincideing of cover external surface.Be provided with rolling slideway and thrust bearing between spacing sliding roll sleeve and the thread bush, be connected between lock nut and the thread bush, be contained in body and above the spacing sliding roll sleeve.
Between above-mentioned lock nut and the spacing sliding roll sleeve adjusting nut is housed; Above the spacing sliding roll sleeve seal cover is housed, between seal cover and the thrust bearing adjusting pad is housed.
Above-mentioned rolling slideway can adopt steel ball rolling slideway; Steel ball and adjusting pad are housed, the full glycerine of remaining space filling in this slideway.
Above-mentioned lock nut and fixedly between the body, between adjusting nut and the seal cover and between drilling rod and the centre drill, adjustment screw is housed all.
The provided by the utility model stroke of compound combined countersink drill of nest, centre drill and combined countersink drill and drilling rod are with axis hole, keyway location, and adjustment screw is fixed.Be loaded on to rotate in the drill press spindle hole with Mohs awl bar and carry out the moment of torsion transmission, finish valve seal nest dimensioned.The centering of employing centre drill, the combined countersink drill stable working can satisfy sealing nest diameter dimension tolerance and fineness 1.6 requirements when drawing nest; Adopt the spacing sliding roll sleeve end face grade iron of seeking death, can satisfy sealing nest depth accuracy tolerance, obtain the 0.05-0.09 tolerance with interior precision.Adopt this combined countersink drill to draw nest and can time processing go out finished product, with existing first drill centers, locate the mode of drawing nest again with centre bore then and compare, improved sealing nest machining accuracy and fineness, and the location heart that can utilize centre drill to stay, directly process oil through.
Introduce the utility model embodiment in detail below in conjunction with accompanying drawing.
[description of drawings] Fig. 1 is the utility model structural representation.
[specific embodiment] as shown in Figure 1, the centre drill 1 of this combined countersink drill is inserted in drilling rod 9 and combined countersink drill 2 inner chambers, combined countersink drill 2 internal diameters and centre drill 1 external diameter coincide and are contained on the centre drill 1, the drill bit of centre drill 1 leans out the drill bit of combined countersink drill 2, adopts dismantled and assembled fixed connection structure between centre drill 1 and combined countersink drill 2 and the drilling rod 9.Above-mentioned drilling rod 9 is provided with the adjustment screw hole, and drilling rod 9 outsides are with the body 7 that is tightly fixed, and the outer surface of body 7 is tapered; Guide thread overlaps 13 inner surfaces and body 7 outer surfaces coincide, and is assemblied on the body 7.Spacing sliding roll sleeve 3 is assemblied in thread bush 13 outsides; Be provided with steel ball rolling slideway 12 between spacing sliding roll sleeve 13 and the thread bush 3, steel ball and adjusting pad 11 are housed in the slideway 12, remaining space filling has glycerine.Above the slideway 12, between spacing sliding roll sleeve 3 and the thread bush 13, single face thrust bearing 4 and adjusting pad 11 are installed successively; Above the spacing sliding roll sleeve 3 seal cover 5 is housed.Be connected between lock nut 8 and the thread bush 13, be contained in body 7 and above the spacing sliding roll sleeve 3, between lock nut 8 and the spacing sliding roll sleeve 3 adjusting nut 6 be housed.
Above-mentioned lock nut 8 and fixedly between the body 7, between adjusting nut 6 and the seal cover 5 and between drilling rod 9 and the centre drill 1, adjustment screw 10 is housed all.
When using this combined countersink drill processing sealing nest, can adjust the working depth of sealing nest with adjusting pad 11; Adjust the size of processing sealing nest diameter with transposing combined countersink drill external diameter size mode.
Claims (8)
1, a kind of stroke of compound combined countersink drill of nest, comprise centre drill [1], combined countersink drill [2] and drilling rod [9] thereof, it is characterized in that said centre drill [1] is inserted in combined countersink drill [2] inner chamber, combined countersink drill [2] internal diameter and centre drill [1] external diameter coincide and are contained on the centre drill [1], the drill bit of centre drill [1] leans out the drill bit of combined countersink drill [2], adopt dismantled and assembled fixed connection structure between centre drill [1] and combined countersink drill [2] and the drilling rod [9], body [7] is equipped with in drilling rod [9] outside, thread bush [13] inner surface and body [7] outer surface coincide and are contained on the body [7], and spacing sliding roll sleeve [3] is contained in thread bush [13] outside.
2, combined countersink drill according to claim 1 is characterized in that tapered the coincideing of said thread bush [13] inner surface and body [7] outer surface is contained on the body [7].
3, combined countersink drill according to claim 1 and 2, it is characterized in that being provided with between said spacing sliding roll sleeve [3] and the thread bush [13] rolling slideway [12] and thrust bearing [4], be connected between lock nut [8] and the thread bush [13], be contained in body [7] and above the spacing sliding roll sleeve [3].
4, combined countersink drill according to claim 1 is characterized in that on the said spacing sliding roll sleeve [3] radial bearing being housed.
5, combined countersink drill according to claim 1 and 2 is characterized in that between said lock nut [8] and the spacing sliding roll sleeve [3] adjusting nut [6] being housed.
6, combined countersink drill according to claim 3 is characterized in that being equipped with above the said spacing sliding roll sleeve [3] seal cover [5], between seal cover [5] and the thrust bearing [4] adjusting pad [11] is housed.
7, combined countersink drill according to claim 1 is characterized in that said rolling slideway [12] can adopt steel ball rolling slideway, and adjusting pad [11] is housed in this slideway [12], the full glycerine of remaining space filling.
8,, it is characterized in that said lock nut [8] and fixedly between the body [7], between adjusting nut [6] and the seal cover [5] and between drilling rod [9] and the centre drill [1], adjustment screw [10] is housed all according to claim 1,2 or 3 described combined countersink drills.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03204764 CN2605095Y (en) | 2003-02-26 | 2003-02-26 | Combined counter sinking bit for socket chamfering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03204764 CN2605095Y (en) | 2003-02-26 | 2003-02-26 | Combined counter sinking bit for socket chamfering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605095Y true CN2605095Y (en) | 2004-03-03 |
Family
ID=34158691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03204764 Expired - Lifetime CN2605095Y (en) | 2003-02-26 | 2003-02-26 | Combined counter sinking bit for socket chamfering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605095Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304154C (en) * | 2003-02-26 | 2007-03-14 | 李宝田 | Socket machining countersinking bit |
| CN101912988A (en) * | 2010-07-29 | 2010-12-15 | 四川天虎工具有限责任公司 | Mechanical clamping combined molding reaming tool |
| CN102554316A (en) * | 2010-12-20 | 2012-07-11 | 苏州春兴精工股份有限公司 | Chamfering and perforating tool |
-
2003
- 2003-02-26 CN CN 03204764 patent/CN2605095Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304154C (en) * | 2003-02-26 | 2007-03-14 | 李宝田 | Socket machining countersinking bit |
| CN101912988A (en) * | 2010-07-29 | 2010-12-15 | 四川天虎工具有限责任公司 | Mechanical clamping combined molding reaming tool |
| CN102554316A (en) * | 2010-12-20 | 2012-07-11 | 苏州春兴精工股份有限公司 | Chamfering and perforating tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20030226 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |