CN103737055A - Combined drill for machining sand shooting hole - Google Patents
Combined drill for machining sand shooting hole Download PDFInfo
- Publication number
- CN103737055A CN103737055A CN201410042561.8A CN201410042561A CN103737055A CN 103737055 A CN103737055 A CN 103737055A CN 201410042561 A CN201410042561 A CN 201410042561A CN 103737055 A CN103737055 A CN 103737055A
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- depth
- drill
- column part
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
Abstract
The invention discloses a combined drill for machining a sand shooting hole. The sand shooting hole is a stepped hole and comprises a large end hole with a first depth, a small end hole with a second depth and a tapered hole connecting the large end hole to the small end hole and having a third depth. The combined drill comprises a drill stem body, and a blade, wherein the drill stem body comprises a large cylinder part, a small cylinder part and a tapered part connecting the large cylinder part to the small cylinder part; depths of the large cylinder part, the small cylinder part and the tapered part correspond to the first depth, the second depth and the third depth respectively; the blade comprises a drill blade and a plurality of reaming blades; the drill blade is mounted at the front end of the small cylinder part; at least one out of the reaming blades is mounted at the narrowest end of the tapered part; and at least another one of the reaming blades is mounted at the widest end of the tapered part. The combined drill can perform one-time machine shaping on the sand shooting hole to be machined, ensures the machining precision of the sand shooting hole and improves the machining efficiency.
Description
Technical field
The present invention relates to Mould Machining field, particularly a kind of composite drill of processing sand-spraying hole.
Background technology
In core manufacture process, need to use core shooter penetrates and gets core, naturally, on mould, need to process sand-spraying hole, general sand-spraying hole is shoulder hole, comprise large stomidium and little stomidium, between large stomidium and little stomidium, pass through taper hole (such as 60 degree conical surface holes) transition, at present, the technological process of general processing sand-spraying hole is: first use through hole fluted drill or Indexable Drills for Shallow Holes to process certain degree of depth at small end place, then the workpiece that overturns, process appropriate depth with Indexable Drills for Shallow Holes at end place greatly, finally, use formed drill to process complete sand-spraying hole.
In above-mentioned process, need to use three cutters, inefficiency, meanwhile, in process, need the workpiece that overturns, tool setting again after upset workpiece, will certainly produce error, make the large end of sand-spraying hole and the axiality of small end produce deviation, machining accuracy is lower.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, and a kind of composite drill of processing sand-spraying hole is provided, and with the disposable machine-shaping of the sand-spraying hole to be processed, guarantees the machining accuracy of sand-spraying hole, improves working (machining) efficiency.
For achieving the above object, the invention provides a kind of composite drill of processing sand-spraying hole, sand-spraying hole is shoulder hole, comprise the little stomidium of large stomidium, second degree of depth with first degree of depth and connect the bellmouth with the 3rd degree of depth of large stomidium and little stomidium, composite drill comprises: drilling rod body, the conical section that it comprises big column part, small column part and is connected this big column part and small column part, the degree of depth of this big column part, small column part and conical section corresponds respectively to first degree of depth, second degree of depth and the 3rd degree of depth; Blade, it comprises drill plate and multiple reaming blade, drill plate is arranged on the front end of small column part, and at least one in multiple reaming blades is arranged on the narrowest end of conical section, in multiple reaming blades at least another is arranged on the widest end of conical section.
In technique scheme, along drilling rod body shaft to sidewall be provided with chip area.
In technique scheme, the front end of small column part is provided with the first mounting groove that drill plate is installed, and the sidewall of the first mounting groove and chip area connects, and drill plate is arranged in the first mounting groove.
In technique scheme, the conical section of drilling rod body is provided with multiple the second mounting grooves that reaming blade is installed, and the sidewall of the second mounting groove and chip area connects, and reaming blade is arranged in the second mounting groove.
In technique scheme, drill plate is all arranged in the first mounting groove and the second mounting groove by screw is corresponding with reaming blade.
In technique scheme, be provided with interior cold hole in the inside of drilling rod body, the sidewall of interior cold hole and chip area connects.
In technique scheme, at the tail end of drilling rod body, be provided with the drillstock with flat position.
Compared with prior art, the present invention has following beneficial effect: by designing integrated notch cuttype drilling rod body and being arranged on the blade of drilling rod body, drilling rod body comprises big column part, small column part and the conical section that is connected this big column part and small column part, this big column part, the degree of depth of small column part and conical section corresponds respectively to first degree of depth of sand-spraying hole to be processed, second degree of depth and the 3rd degree of depth, blade comprises multiple reaming blades of the centrum part that is arranged on the drill plate of drilling rod body front end and is arranged on drilling rod body, this composite drill can the disposable machine-shaping to sand-spraying hole to be processed, guarantee the machining accuracy of sand-spraying hole, improve working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of sand-spraying hole to be processed in the embodiment of the present invention;
Fig. 2 is the structural representation of the composite drill of processing sand-spraying hole of the present invention.
Mark the following drawings mark thereon by reference to the accompanying drawings:
1-drilling rod body, A-big column part, B-small column part, C-conical section, 11-chip area, cold hole in 12-, 13-drillstock, 21-reaming blade, 22-drill plate.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of the specific embodiment.
As shown in Figure 1, the composite drill of processing sand-spraying hole of the present invention is specially for processing mold sand-spraying hole designs, in the present embodiment, needing the sand-spraying hole of processing is shoulder hole, comprise the small end hole 20 of large stomidium 10, second degree of depth with first degree of depth and connect the bellmouth with the 3rd degree of depth 30 of large stomidium and little stomidium, the bellmouth 30 of the present embodiment is take 60 degree conical surface holes as example explanation.The composite drill of processing sand-spraying hole of the present invention can disposablely put this in place sand-spraying hole processing, guarantees the machining accuracy of sand-spraying hole, and composite drill is simple in structure, greatly improves working (machining) efficiency.
As shown in Figure 2, the composite drill of processing sand-spraying hole of the present invention comprises integrated drilling rod body 1 and blade, and blade comprises drill plate 22 and multiple reaming blade 21.Drilling rod body 1 comprises big column part A, small column part B and the conical section C that is connected this big column part A and small column part B, and the degree of depth of this big column part A, small column part B and conical section C corresponds respectively to first degree of depth of sand-spraying hole, second degree of depth and the 3rd degree of depth.Drill plate 22 is arranged on the front end of small column part B, at least one in multiple reaming blades 21 is arranged on the narrowest end of conical section C, in multiple reaming blades 21 at least another is arranged on the widest end of conical section C, the present embodiment is take two reaming blades as example, the corresponding two ends that are arranged on conical section C respectively, the blade rotation cone angle of reaming blade 21 is α.Adding man-hour, drill plate 22 completes preparatory processing, and complete the moulding in the small end hole 20 of sand-spraying hole, multiple reaming blades 21 hole that 22 preparatory processings go out to drill plate is carried out reaming processing and is completed the moulding of large stomidium 10, when small end hole 20 puts in place with large stomidium 10 processing, reaming blade 21 just completes the moulding of bellmouth 30.
As a kind of preferred embodiment, along being provided with chip area 11 on the axial sidewall of drilling rod body 1, at the front end of small column part B, be provided with the first mounting groove (unmarked in figure) that drill plate 22 is installed, the sidewall of the first mounting groove and chip area 11 connects, and drill plate 22 is arranged in the first mounting groove.At the conical section C of drilling rod body 1, be provided with multiple the second mounting grooves (unmarked in figure) that reaming blade 21 is installed, the sidewall of the second mounting groove and chip area 11 connects, and reaming blade 21 is arranged in the second mounting groove.Drill plate 22 is all arranged in the first mounting groove and the second mounting groove by screw is corresponding with reaming blade 21.In the inside of drilling rod body 1, be provided with interior cold hole 12, the sidewall of interior cold hole and chip area 11 connects, and is adding man-hour, and cooling fluid enters from interior cold hole 12, from inside, drilling rod body and blade are carried out coolingly, utilize the pressure of cooling fluid that smear metal is discharged by chip area 11 simultaneously.For fixing drilling rod body 1, at the tail end of drilling rod body 1, be provided with the drillstock 13 with flat position.
In such scheme, chip area 11 is set in the axial direction of drilling rod body 1, play on the one hand the effect of discharging smear metal, convenient drill plate 22 and the multiple reaming blades 21 installed on the other hand, because the first mounting groove and the second mounting groove can be separately positioned on the sidewall of chip area 11, utilize the convenient fixing drill plate 22 of screw and multiple reaming blades 21.
Disclosed is above only specific embodiments of the invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (7)
1. process the composite drill of sand-spraying hole for one kind, described sand-spraying hole is shoulder hole, comprise the little stomidium of large stomidium, second degree of depth with first degree of depth and connect the bellmouth with the 3rd degree of depth of described large stomidium and described little stomidium, it is characterized in that, described composite drill comprises:
Drilling rod body, the conical section that it comprises big column part, small column part and is connected this big column part and small column part, the degree of depth of this big column part, small column part and conical section corresponds respectively to described first degree of depth, second degree of depth and the 3rd degree of depth;
Blade, it comprises drill plate and multiple reaming blade, described drill plate is arranged on the front end of described small column part, at least one in described multiple reaming blade is arranged on the narrowest end of described conical section, in described multiple reaming blades at least another is arranged on the widest end of described conical section.
2. the composite drill of processing sand-spraying hole according to claim 1, is characterized in that, along described drilling rod body shaft to sidewall be provided with chip area.
3. the composite drill of processing sand-spraying hole according to claim 2, it is characterized in that, the front end of described small column part is provided with the first mounting groove that described drill plate is installed, and the sidewall of described the first mounting groove and described chip area connects, and described drill plate is arranged in described the first mounting groove.
4. the composite drill of processing sand-spraying hole according to claim 2, it is characterized in that, the conical section of described drilling rod body is provided with multiple the second mounting grooves that described reaming blade is installed, the sidewall of described the second mounting groove and described chip area connects, and described reaming blade is arranged in described the second mounting groove.
5. the composite drill of processing sand-spraying hole according to claim 4, is characterized in that, described drill plate is all arranged in described the first mounting groove and described the second mounting groove by screw is corresponding with described reaming blade.
6. according to the composite drill of the processing sand-spraying hole described in claim 2 to 5 any one, it is characterized in that, be provided with interior cold hole in the inside of described drilling rod body, the sidewall of described interior cold hole and described chip area connects.
7. the composite drill of processing sand-spraying hole according to claim 6, is characterized in that, at the tail end of described drilling rod body, is provided with the drillstock with flat position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042561.8A CN103737055A (en) | 2014-01-29 | 2014-01-29 | Combined drill for machining sand shooting hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042561.8A CN103737055A (en) | 2014-01-29 | 2014-01-29 | Combined drill for machining sand shooting hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103737055A true CN103737055A (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410042561.8A Pending CN103737055A (en) | 2014-01-29 | 2014-01-29 | Combined drill for machining sand shooting hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103737055A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773751A (en) * | 2016-03-25 | 2016-07-20 | 黄永怀 | Wood perforating machine drill bit capable of automatically sucking scraps |
| CN114769650A (en) * | 2022-02-28 | 2022-07-22 | 中国铁建重工集团股份有限公司 | Automatic drilling device for magnetic suspension track panel induction plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09253913A (en) * | 1996-03-22 | 1997-09-30 | Unisia Jecs Corp | Processing method of hole |
| CN201006557Y (en) * | 2007-03-02 | 2008-01-16 | 深圳市深南电路有限公司 | Drilling and milling combined knife tool |
| CN201183133Y (en) * | 2008-03-31 | 2009-01-21 | 莱芜钢铁集团有限公司 | Step hole processing drill |
| CN201376110Y (en) * | 2009-04-20 | 2010-01-06 | 刘新平 | Inner cooling translocation step drill |
| CN202845865U (en) * | 2012-09-23 | 2013-04-03 | 常州市恒祥泵业工具制造有限公司 | Step drill |
| CN203711899U (en) * | 2014-01-29 | 2014-07-16 | 广西玉柴机器股份有限公司 | Composite drill used for processing sand shooting hole |
-
2014
- 2014-01-29 CN CN201410042561.8A patent/CN103737055A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09253913A (en) * | 1996-03-22 | 1997-09-30 | Unisia Jecs Corp | Processing method of hole |
| CN201006557Y (en) * | 2007-03-02 | 2008-01-16 | 深圳市深南电路有限公司 | Drilling and milling combined knife tool |
| CN201183133Y (en) * | 2008-03-31 | 2009-01-21 | 莱芜钢铁集团有限公司 | Step hole processing drill |
| CN201376110Y (en) * | 2009-04-20 | 2010-01-06 | 刘新平 | Inner cooling translocation step drill |
| CN202845865U (en) * | 2012-09-23 | 2013-04-03 | 常州市恒祥泵业工具制造有限公司 | Step drill |
| CN203711899U (en) * | 2014-01-29 | 2014-07-16 | 广西玉柴机器股份有限公司 | Composite drill used for processing sand shooting hole |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773751A (en) * | 2016-03-25 | 2016-07-20 | 黄永怀 | Wood perforating machine drill bit capable of automatically sucking scraps |
| CN114769650A (en) * | 2022-02-28 | 2022-07-22 | 中国铁建重工集团股份有限公司 | Automatic drilling device for magnetic suspension track panel induction plate |
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Application publication date: 20140423 |